Transport vehicle

Abstract

A transport vehicle, comprising a base frame and a first side panel assembly. The base frame comprises a main beam and a vertical rod, the vertical rod being disposed at an end portion of the main beam, and the vertical rod comprising a fixed rod and a removable rod, the fixed rod being connected to the main beam, and the removable rod being detachably connected to the fixed rod. The first side panel assembly is movably connected to the vertical rod between a deployed position and a retracted position, and the first side panel assembly is provided with a through-opening to allow for passage of the vertical rod when in the retracted position. In the vertical direction, the fixed rod does not protrude beyond the first side panel assembly in the retracted position.

Description

A transport vehicle

[0001] This application claims priority to Chinese Patent Application No. 2024219222296, filed on August 8, 2024, entitled "A Standardized Transport Vehicle", and to Chinese Patent Application No. 2024110935216, filed on August 8, 2024, entitled "A Standardized Transport Vehicle", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This disclosure generally relates to the technical field of transport vehicles, and more specifically to a transport vehicle. Background Technology

[0003] Current transport vehicles, especially six-wheeled trolleys, are difficult to stack properly when stored due to their irregular shapes, resulting in low space utilization and affecting the storage and transportation of these vehicles.

[0004] Summary of the Invention

[0005] The summary section introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This summary section is not intended to limit the key features and essential technical features of the claimed technical solutions, nor is it intended to determine the scope of protection of the claimed technical solutions.

[0006] To at least partially address the aforementioned problems, this disclosure provides a transport vehicle comprising a chassis and a first side panel assembly. The chassis includes a main beam and a vertical rod disposed at an end of the main beam. The vertical rod includes a fixed rod and a disassembly rod, the fixed rod being connected to the main beam. The disassembly rod is detachably connected to the fixed rod. The first side panel assembly is movably connected to the vertical rod between an extended position and a retracted position, and the first side panel assembly is provided with a through-hole for the vertical rod to pass through when the first side panel assembly is in the retracted position.

[0007] When the first side panel assembly is in the retracted position, the fixing rod does not protrude from the first side panel assembly in the vertical direction.

[0008] According to the transport vehicle disclosed herein, when the first side panel assembly is in the retracted position, the vertical rod protrudes through the opening of the first side panel assembly, and the disassembly rod of the vertical rod is removed. At this time, the fixing rod does not protrude from the first side panel assembly in the vertical direction, thus facilitating the stacking of the transport vehicle, improving space utilization, and benefiting the storage and transportation of the transport vehicle.

[0009] Optionally, the disassembly rod includes a protrusion and a through portion. The through portion is connected to the protrusion and extends into the fixing rod.

[0010] Optionally, a nut is provided inside the through-hole. The through-hole has a first mounting hole, and the fixing rod has a second mounting hole. The vertical rod also includes a fastener, which passes through the second mounting hole and the first mounting hole and is threadedly engaged with the nut.

[0011] Optionally, the first mounting hole is provided on the bottom surface of the through part, and the second mounting hole is provided on the bottom surface of the fixing rod.

[0012] Optionally, the projection of the protrusion along the vertical direction coincides with the projection of the fixing rod along the vertical direction.

[0013] Optionally, the first side panel assembly includes a first wheel assembly, a first side panel frame, and a first upright. A first end of the first upright is connected to the first side panel frame, and a second end of the first upright is connected to the first wheel assembly. The first upright is movably connected to the vertical rod between an extended position and a retracted position, and the opening is provided on the first upright.

[0014] Optionally, the first column is provided with an elongated slot, and the transport vehicle further includes a base plate and a tilting and lifting mechanism. The tilting and lifting mechanism includes a lifting pin and a flap. The lifting pin passes through the fixed rod and through the elongated slot to the first column. The first end of the flap is connected to the base plate, and the second end of the flap is pivotally connected to the first column about a first pivot axis, the first pivot axis being parallel to the axis of the lifting pin.

[0015] The transport vehicle is configured such that, during the process of the flap rotating about the first pivot axis to bring the bottom plate into contact with at least a portion of the first side plate frame, the flap lifts the lifting pin in the vertical direction.

[0016] Optionally, the first side panel frame is provided with a locking member, which is used to lock the bottom plate attached to the first side panel frame.

[0017] Optionally, the transport vehicle further includes a second side panel assembly, with the first and second side panel assemblies respectively disposed at both ends of the chassis. A second wheel set is provided in the middle of the chassis, and the second side panel assembly includes a third wheel set. The second wheel set is a fixed wheel set and has a braking device, while the first and third wheel sets are both swivel wheel sets.

[0018] Optionally, the second side panel assembly includes a second side panel frame and a second column. A first end of the second column is connected to the second side panel frame, a second end of the second column is connected to the third wheel assembly, and the second column is connected to the base frame. Attached Figure Description

[0019] The following drawings, which illustrate embodiments of this disclosure, are incorporated herein by reference as part of this disclosure and are used to understand this disclosure. The drawings show embodiments of this disclosure and their descriptions, serving to explain the principles of this disclosure. In the drawings,

[0020] Figure 1 is a perspective view of a transport vehicle according to a preferred embodiment of the present disclosure, wherein the first side panel assembly is in the unfolded position and the bottom plate is in the working state;

[0021] Figure 2 is a perspective view of a transport vehicle according to a preferred embodiment of the present disclosure, in which the first side panel assembly is in the unfolded position and the bottom plate is in the process of flipping to the first side panel assembly;

[0022] Figure 3 is a perspective view of a transport vehicle according to a preferred embodiment of the present disclosure, in which the first side panel assembly is in the unfolded position and the bottom plate is flipped to the first side panel assembly;

[0023] Figure 4 is a perspective view of a transport vehicle according to a preferred embodiment of the present disclosure, in which the bottom plate is flipped to the first side panel assembly and the first side panel assembly is in the retracted position;

[0024] Figure 5 is a three-dimensional schematic diagram of the base frame;

[0025] Figure 6 is a three-dimensional schematic diagram of the fixed rod;

[0026] Figure 7 is a three-dimensional schematic diagram of the disassembly rod;

[0027] Figure 8 is an enlarged schematic diagram along section A in Figure 1; and

[0028] Figure 9 is an enlarged schematic diagram of part B in Figure 2.

[0029] Reference numerals: 100: Base frame; 101: Main beam; 102: Vertical rod; 103: Second wheel assembly; 104: Disassembly rod; 105: Fixing rod; 106: Protrusion; 107: Through-hole; 108: Second mounting hole; 109: Nut; 150: Side panel; 151: Bottom panel; 152: First insertion hole; 153: Second insertion hole; 154: Connecting plate; 155: Mounting square tube; 110: Base plate; 111: Fastener; 112: Protrusion; 120: First side plate assembly; 121: Long slot. 122: First wheel assembly; 123: First side panel frame; 124: First column; 125: Through opening; 126: Locking element; 130: Tilting and lifting mechanism; 131: Flip plate; 132: Lifting pin; 133: Cotter pin; 134: Gasket; 140: Second side panel assembly; 141: Third wheel assembly; 142: Second side panel frame; 143: Second column; AX1: First pivot axis; AX2: Second pivot axis; D1: Vertical direction; D2: Length direction; D3: Width direction; 160: Transport vehicle. Detailed Implementation

[0030] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of this disclosure. However, it will be apparent to those skilled in the art that embodiments of this disclosure may be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described to avoid confusion with embodiments of this disclosure.

[0031] In this document, ordinal numbers such as “first” and “second” used in this disclosure are merely identifiers and do not have any other meaning, such as a specific order. Moreover, for example, the term “first component” does not imply the existence of a “second component”, and the term “second component” does not imply the existence of a “first component”.

[0032] In this article, terms such as "up," "down," "front," "back," "left," and "right" are used only to indicate the relative positional relationship between related parts, rather than to define the absolute position of these related parts.

[0033] In this document, terms such as “equal” and “same” are not strict mathematical and / or geometric limitations, but also include errors that are understandable to those skilled in the art and permissible in manufacturing or use.

[0034] Unless otherwise stated, the numerical ranges in this document include not only the entire range within its two endpoints, but also the subranges contained therein.

[0035] Currently, with the development of the transportation sector, modular and standardized design is becoming increasingly important. Transport vehicles using modular and standardized designs can improve the flexibility and reusability of the vehicles. Furthermore, the interchangeability of parts facilitates maintenance, replacement, and upgrades, extending the service life of the transport vehicles and promoting environmental friendliness. In addition, modular and standardized transport vehicles can also improve space utilization.

[0036] Figures 1 to 9 illustrate a transport vehicle 160 according to the present disclosure. The transport vehicle 160 includes a chassis 100 and a first side panel assembly 120. The chassis 100 includes a main beam 101 and a vertical rod 102. The vertical rod 102 is disposed at the end of the main beam 101 and includes a fixing rod 105 and a disassembly rod 104. The fixing rod 105 is connected to the main beam 101, and the disassembly rod 104 is detachably connected to the fixing rod 105.

[0037] The first side panel assembly 120 is movably connected to the vertical rod 102 between the extended position and the retracted position. The first side panel assembly 120 is provided with a through-hole 125 for the vertical rod 102 to pass through when in the retracted position.

[0038] The fixing rod 105 does not protrude from the first side plate assembly 120 in the retracted position along the vertical direction D1.

[0039] According to the transport vehicle 160 disclosed herein, when the first side panel assembly 120 is in the retracted position, the vertical rod 102 passes through the opening 125 of the first side panel assembly 120, and the disassembly rod 104 of the vertical rod 102 is removed. At this time, the fixing rod 105 does not protrude from the first side panel assembly 120 in the vertical direction D1, thus facilitating the stacking of the transport vehicle 160, improving space utilization, and benefiting the storage and transportation of the transport vehicle 160.

[0040] The transport vehicle 160 also includes a tilting and lifting mechanism 130 and a base plate 110. The base plate 110, the base frame 100, and the first side panel assembly 120 can switch between various configurations via the tilting and lifting mechanism 130. For example, Figure 1 shows the working state of the transport vehicle 160, in which the first side panel assembly 120 is in the unfolded position and extends along the vertical direction D1. As another example, in Figure 2, the base plate 110 is tilted toward the first side panel assembly 120 via the tilting and lifting mechanism 130 until, as shown in Figure 3, the base plate 110 is attached to the first side panel assembly 120, at which point the transport vehicle 160 can be moved laterally and stacked. As yet another example, in Figure 4, the base plate 110 is attached to the first side panel assembly 120 and tilted to the retracted position along with the first side panel assembly 120, thereby allowing the transport vehicle 160 to be stacked.

[0041] [Correction 10.03.2026 based on Rule 91] Referring to Figures 1 and 2, the transport vehicle 160 further includes a second side panel assembly 140. The first side panel assembly 120 and the second side panel assembly 140 are respectively arranged at both ends of the chassis 100 along the length direction D2. The first side panel assembly 120 includes a first wheel set 122, and a second wheel set 103 is provided in the middle of the chassis 100. The second side panel assembly 140 includes a third wheel set 141. The second wheel set 103 is a fixed wheel set and has a braking device. The first wheel set 122 and the third wheel set 141 are both omnidirectional wheel sets.

[0042] When the chassis 100 is in a horizontal position (as shown in Figure 1), the second wheel set 103 is lower than the first wheel set 122 and the third wheel set 141. Therefore, when the transport vehicle 160 is in normal use, the second wheel set 103 contacts the ground, and the chassis 100 has a slight tilt angle, allowing either the first wheel set 122 or the third wheel set 141 to contact the ground. At this time, two wheel sets (a total of four wheels) support the chassis 100 and the base plate 110, thus facilitating the transport of goods. Since the second wheel set 103 has a braking device, the transport vehicle 160 can be braked and controlled.

[0043] When the base plate 110 flips and attaches to the first side plate assembly 120, the vertical rod 102 is lifted relative to the first side plate assembly 120 under the action of the flipping and lifting mechanism 130, thereby causing the second wheel set 103 to leave the ground. At this time, the transport vehicle 160 moves through the first wheel set 122 and the third wheel set 141 and can be stacked laterally with another transport vehicle 160, thereby saving storage space.

[0044] Specifically, regarding the structure of the transport vehicle 160, referring to Figures 1 and 2, the first side panel assembly 120 also includes a first side panel frame 123 and a first column 124. Along the vertical direction D1, the upper end of the first column 124 is connected to the first side panel frame 123, and the lower end of the first column 124 is connected to the first wheel assembly 122.

[0045] Referring to Figures 4 and 8, the first column 124 is movably connected to the vertical rod (102) between the unfolded position and the retracted position. The through-hole 125 is provided on the first column 124. When the first side panel assembly 120 is in the retracted position, the vertical rod 102 passes through the through-hole 125 to the first column 124, so that there is a limit between the first side panel assembly 120 and the base frame 100, making the first side panel assembly 120 more stable in the retracted position.

[0046] As shown in Figures 3 and 5, the base frame 100 also includes a mounting square tube 155, which is disposed at one end of the main beam 101 away from the first side plate assembly 120 and fixed to the main beam 101. The lower end of the mounting square tube 155 is connected to the third wheel assembly 141.

[0047] Referring to Figure 1, the second side panel assembly 140 also includes a second side plate frame 142 and a second column 143. Along the vertical direction D1, the upper end of the second column 143 is connected to the second side plate frame 142, and the lower end of the second column 143 passes through the upper end of the mounting square tube 155 and is fixed to the mounting square tube 155 by fasteners 111 (not shown in the figure) such as pins or bolts. Therefore, when the transport vehicle 160 is in a folded state (refer to Figure 4), the fasteners 111 between the second column 143 and the mounting square tube 155 can be removed, allowing the second column 143 and the second side plate frame 142 to be horizontally stacked above the first side panel assembly 120, reducing the height of the transport vehicle 160 along the vertical direction D1 and facilitating transportation.

[0048] Referring to Figures 5 and 6, the fixing rod 105 is in the shape of a square tube, and the side wall of the fixing rod 105 is fixedly connected to one end of the main beam 101 near the first side piece assembly 120.

[0049] Referring to Figure 7, the disassembly rod 104 includes a protrusion 106 and a through portion 107. The through portion 107 is connected to the protrusion 106 and passes through the fixing rod 105, thereby making the connection between the disassembly rod 104 and the fixing rod 105 more stable.

[0050] In detail, referring to Figures 6 and 7, the protrusion 106 is in the shape of a square tube. The through-hole portion 107 includes two side panels 150, a connecting plate 154, and a bottom panel 151. Both the side panels 150 and the connecting plate 154 extend in the vertical direction D1. The two side panels 150 are spaced apart in the width direction D3 of the transport vehicle 160 and are respectively connected to the two vertical sides of the connecting plate 154. The bottom panel 151 is disposed at the lower end of the side panels 150 and the connecting plate 154, and the bottom panel 151 is fixedly connected to both the side panels 150 and the connecting plate 154. In addition, the upper ends of the connecting plate 154 and the side panels 150 are connected to the bottom surface of the protrusion 106.

[0051] When the disassembly rod 104 and the fixing rod 105 are fixed, the through part 107 passes through the fixing rod 105 until the bottom panel 151 contacts the inner bottom surface of the fixing rod 105, and the bottom surface of the protrusion 106 abuts against the upper end of the fixing rod 105. This ensures that the disassembly rod 104 and the fixing rod 105 have good integrity after being connected together, which is beneficial for the assembly of the vertical rod 102 and the first column 124. In addition, the vertical rod 102 has a larger dimension along the vertical direction D1, which can better cooperate with the first column 124 (especially in vertical relative movement).

[0052] Optionally, the projection of the protrusion 106 along the vertical direction D1 coincides with the projection of the fixing rod 105 along the vertical direction D1, so that the side wall of the vertical rod 102 formed after the disassembly rod 104 and the fixing rod 105 are smooth, which further enhances the integrity of the disassembly rod 104 and the fixing rod 105 and facilitates the assembly of the vertical rod 102 and the first column 124.

[0053] Optionally, a nut 109 is provided inside the through-hole 107, and the through-hole 107 is provided with a first mounting hole (not shown in the figure). The fixing rod 105 is provided with a second mounting hole 108. The vertical rod 102 also includes a fastener 111, which passes through the second mounting hole 108 and the first mounting hole and is threadedly engaged with the nut 109, thereby fixing the disassembly rod 104 and the fixing rod 105 together. This enables the disassembly rod 104 and the fixing rod 105 to be detachably installed, facilitating the removal of the disassembly rod 104 after the transport vehicle 160 is folded.

[0054] Specifically, as shown in Figures 6 and 7, a first mounting hole and nut 109 are provided on the bottom panel 151, and a second mounting hole 108 is provided on the bottom surface of the fixing rod 105. When the through-hole 107 of the disassembly rod 104 is inserted into the fixing rod 105, the bottom panel 151 of the through-hole 107 contacts the inner bottom surface of the fixing rod 105, and the first mounting hole aligns with the second mounting hole 108. This facilitates the installation of fasteners 111 from the bottom of the fixing rod 105, connecting the disassembly rod 104 and the fixing rod 105 together. Furthermore, when the transport vehicle 160 is folded, there are no structural obstructions on the bottom surface of the fixing rod 105, making it easy for workers to remove the fasteners 111 from the bottom surface of the fixing rod 105, thus removing the disassembly rod 104.

[0055] Specifically, the structure of the tilting and lifting mechanism 130 and the base plate 110.

[0056] As shown in Figures 8 and 9, the first column 124 is provided with a long slot 121, and the flipping and lifting mechanism 130 includes a flap 131 and a lifting pin 132. The lifting pin 132 passes through the fixed rod 105 and through the long slot 121 to the first column 124, so that the vertical rod 102 can move relative to the first column 124 in the vertical direction D1 and can be pivotally set around the second pivot axis AX2 (i.e. the axis of the lifting pin 132).

[0057] Specifically, referring to Figure 6, the side wall of the fixing rod 105 is provided with a first insertion hole 152, and referring to Figure 7, correspondingly, the side wall of the side panel 150 is provided with a second insertion hole 153. As shown in Figure 8, when the disassembly rod 104 is fixed to the fixing rod 105, the first insertion hole 152 and the second insertion hole 153 are aligned for the lifting pin 132 to pass through, making the connection between the lifting pin 132 and the vertical rod 102 more secure.

[0058] Optionally, as shown in Figure 8, the tilting and lifting mechanism 130 further includes two cotter pins 133 and two washers 134. Along the width direction D3, the two washers 134 are fitted onto the lifting pin 132 and arranged on both sides of the first column 124. The cotter pins 133 pass through the lifting pin 132 and are arranged on the side of the washers 134 away from the first column 124, thereby limiting the lifting pin 132 and realizing the detachable installation of the lifting pin 132, so as to ensure a stable connection between the vertical rod 102 and the first column 124.

[0059] As shown in Figure 3, the first end of the flap 131 is connected to the base plate 110 via fastener 111. Referring to Figures 8 and 9, the second end of the flap 131 is pivotally connected to the first column 124 about a first pivot axis AX1 parallel to the axis of the lifting pin 132. During the process of the base plate 110 fitting against at least a portion of the first side plate frame 123, the flap 131 lifts the lifting pin 132 in the vertical direction D1, causing the lifting pin 132 to move along the elongated groove 121. This causes the vertical rod 102 to rise relative to the first column 124 in the vertical direction D1, thereby raising the end of the base frame 100 near the first side plate assembly 120, allowing the second wheel set 103 to lift off the ground. This, in turn, allows the transport vehicle 160 to move laterally using the first wheel set 122 and the third wheel set 141, facilitating the stacking of transport vehicles 160.

[0060] Optionally, referring to Figure 9, the flap 131 can be a plate-like structure with two bends, thereby guiding the lifting pin 132 to the inclined surface in the middle of the flap 131 during the process of the bottom plate 110 driving the flap 131 to move upward. When the lifting pin 132 is at the top of the long groove 121, the lifting pin 132 is positioned at the bend of the flap 131 and the top of the long groove 121, which facilitates the stable pivoting of the first side plate frame 123 and the bottom plate 110 around the second pivot axis AX2.

[0061] Optionally, the first side panel frame 123 is provided with a locking member 126, which is used to lock the bottom plate 110 attached to the first side panel frame 123, thereby connecting the bottom plate 110 and the first side panel frame 123 together, which facilitates subsequent overall folding.

[0062] Furthermore, a protrusion 112 is provided at the end of the base plate 110 away from the flip plate 131. The locking member 126 is pivotally connected to the first side plate frame 123. When the base plate 110 is attached to the first side plate frame 123, the locking member 126 is rotated so that the locking member 126 is fitted onto the protrusion 112 attached to the base plate 110, thereby locking the base plate 110 and the first side plate frame 123 together, preventing the base plate 110 from shaking during the process of the first side plate frame 123 pivoting to the horizontal position, and facilitating the folding of the transport vehicle 160.

[0063] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure pertains. The terminology used herein is for descriptive purposes only and is not intended to limit the scope of this disclosure. Terms such as “setup” appearing herein can refer to either a component being directly attached to another component or a component being attached to another component via an intermediary. A feature described in one embodiment herein may be applied, alone or in combination with other features, to another embodiment, unless that feature is not applicable in that other embodiment or is otherwise stated.

[0064] This disclosure has been described through the above embodiments; however, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit this disclosure to the described embodiments. Those skilled in the art will understand that many more variations and modifications can be made based on the teachings of this disclosure, all of which fall within the scope of protection claimed in this disclosure.

Claims

1. A transport vehicle (160), characterized by, The transport vehicle (160) includes: A base frame (100), the base frame (100) comprising: Main beam (101); and A vertical rod (102) is disposed at the end of the main beam (101), and the vertical rod (102) includes: A fixing rod (105) is connected to the main beam (101); and A disassembly rod (104), said disassembly rod (104) being detachably connected to said fixing rod (105); and A first side panel assembly (120) is movably connected to the vertical rod (102) between an extended position and a retracted position. The first side panel assembly (120) is provided with a through-hole (125) which, when in the retracted position, allows the vertical rod (102) to pass through. When the first side panel assembly (120) is in the retracted position, the fixing rod (105) does not protrude from the first side panel assembly (120) in the vertical direction (D1).

2. The transport vehicle (160) according to claim 1, characterized in that The disassembly lever (104) includes: Protrusion (106); and The through part (107) is connected to the protrusion (106) and passes through the fixing rod (105).

3. The transport vehicle (160) according to claim 2, characterized in that A nut (109) is provided inside the through part (107); the through part (107) is provided with a first mounting hole, and the fixing rod (105) is provided with a second mounting hole (108); the vertical rod (102) also includes a fastener (111), the fastener (111) passes through the second mounting hole (108) and the first mounting hole and is threadedly engaged with the nut (109).

4. The transport vehicle (160) according to claim 3, characterized in that The first mounting hole is provided on the bottom surface of the through part (107), and the second mounting hole (108) is provided on the bottom surface of the fixing rod (105).

5. The transport vehicle (160) according to any one of claims 2 to 4, characterized in that, The projection of the protrusion (106) along the vertical direction (D1) coincides with the projection of the fixing rod (105) along the vertical direction (D1).

6. The transport vehicle (160) according to any one of claims 1 to 5, characterized in that, The first side panel assembly (120) includes: Group 1 (122); First side panel frame (123); and The first column (124) has a first end connected to the first side plate frame (123) and a second end connected to the first wheel set (122). The first column (124) is movably connected to the vertical rod (102) between the extended position and the retracted position, and the opening (125) is provided on the first column (124).

7. The transport vehicle (160) according to claim 6, characterized by The first column (124) is provided with an elongated slot (121), and the transport vehicle (160) further includes: Base plate (110); and A tilting and lifting mechanism (130), the tilting and lifting mechanism (130) comprising: A lifting pin (132) passes through the fixing rod (105) and through the elongated slot (121) to the first column (124); and A flap (131) is provided, the first end of which is connected to the base plate (110), and the second end of which is pivotally connected to the first column (124) about a first pivot axis (AX1), the first pivot axis (AX1) being parallel to the axis of the lifting pin (132). The transport vehicle (160) is configured such that, during the rotation of the flap (131) around the first pivot axis (AX1) to bring the base plate (110) into contact with at least a portion of the first side plate frame (123), the flap (131) lifts the lifting pin (132) in the vertical direction (D1).

8. The transport vehicle (160) according to claim 7, characterized by The first side panel frame (123) is provided with a locking member (126), which is used to lock the bottom plate (110) attached to the first side panel frame (123).

9. The transport vehicle (160) according to any one of claims 6 to 8, characterized in that, The transport vehicle (160) further includes a second side panel assembly (140), wherein the first side panel assembly (120) and the second side panel assembly (140) are respectively disposed at both ends of the underframe (100); A second wheel set (103) is provided in the middle of the base frame (100), and the second side plate assembly (140) includes a third wheel set (141); the second wheel set (103) is a fixed wheel set and has a braking device. Both the first wheel set (122) and the third wheel set (141) are omnidirectional wheel sets.

10. The transport vehicle (160) of claim 9, characterized by The second side panel assembly (140) includes: Second side panel frame (142); and The second column (143) has its first end connected to the second side plate frame (142), its second end connected to the third wheel assembly (141), and its second end connected to the base frame (100).

Images