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

Transportation vehicle

[0001] The present application claims priority to Chinese Patent Application No. 2024219222296, filed on August 8, 2024, entitled "A Standardized Transportation Vehicle", and Chinese Patent Application No. 2024110935216, filed on August 8, 2024, entitled "A Standardized Transportation Vehicle", the contents of which are incorporated herein by reference in their entirety. TECHNICAL FIELD

[0002] The present disclosure relates generally to the technical field of transportation vehicles, and more particularly to a transportation vehicle. BACKGROUND

[0003] The current transportation vehicles, especially six-wheel pallets, are difficult to be well stacked and placed in a storage state due to their irregular shape, resulting in low space utilization and affecting the storage and transportation of the transportation vehicles.

[0004] SUMMARY

[0005] A series of simplified concepts are introduced in the summary section, which will be further described in detail in the specific embodiments section. The summary section of the present disclosure does not mean to attempt to limit the key features and essential technical features of the claimed technical solutions, nor to determine the protection scope of the claimed technical solutions.

[0006] To at least partially solve the above problems, the present disclosure provides a transportation vehicle, which comprises a chassis and a first side panel assembly. The chassis comprises a main beam and a vertical rod arranged at the end of the main beam. The vertical rod comprises a fixed rod and a detachable rod, and the fixed rod is connected to the main beam. The detachable rod is detachably connected to the fixed rod. The first side panel assembly is movably connected to the vertical rod between an expanded position and a retracted position, and the first side panel assembly is provided with an opening. When the first side panel assembly is in the retracted position, the opening is used for passing the vertical rod.

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

[0008] According to the transportation vehicle of the present disclosure, when the first side panel assembly is in the retracted position, the vertical rod passes out through the opening of the first side panel assembly, and the detachable rod of the vertical rod is detached. At this time, the fixed rod does not protrude in the vertical direction from the first side panel assembly, so it is convenient to stack and place the transportation vehicle, improves the space utilization, and is beneficial to the storage and transportation of the transportation vehicle.

[0009] Optionally, the dismounting rod comprises a protruding part and a penetrating part. The penetrating part is connected with the protruding part, and the penetrating part penetrates into the fixing rod.

[0010] Optionally, a nut is arranged in the penetrating part. The penetrating part is provided with a first mounting hole, and the fixing rod is provided with a second mounting hole. The vertical rod further comprises a fastener, which penetrates the second mounting hole, the first mounting hole and is threadedly matched with the nut.

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

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

[0013] Optionally, the first side panel assembly comprises a first wheel set, a first side plate frame and a first upright column. The first end of the first upright column is connected to the first side plate frame, and the second end of the first upright column is connected to the first wheel set. The first upright column is movably connected to the vertical rod between an unfolded position and a retracted position, and the through hole is arranged on the first upright column.

[0014] Optionally, the first upright column is provided with a long slot, and the transport carrier further comprises a bottom plate and a turnover lifting mechanism. The turnover lifting mechanism comprises a lifting pin and a turnover plate. The lifting pin penetrates into the fixing rod and penetrates into the first upright column through the long slot. The first end of the turnover plate is connected to the bottom plate, and the second end of the turnover plate is pivotally connected to the first upright column about a first pivot axis, and the first pivot axis is parallel to the axis of the lifting pin.

[0015] Optionally, the transport carrier is configured such that, during the process that the turnover plate rotates around the first pivot axis to make the bottom plate fit to at least part of the first side plate frame, the turnover plate lifts the lifting pin in the vertical direction.

[0016] Optionally, the first side plate frame is provided with a locking member for locking the bottom plate fitted to the first side plate frame.

[0017] Optionally, the transport carrier further comprises a second side panel assembly, and the first side panel assembly and the second side panel assembly are respectively arranged at two ends of the chassis. The middle part of the chassis is provided with a second wheel set, and the second side panel assembly comprises a third wheel set. The second wheel set is a fixed wheel set and has a brake device, and the first wheel set and the third wheel set are both universal wheel sets.

[0018] Optionally, the second side panel assembly includes a second side panel frame and a second upright. A first end of the second upright is connected to the second side panel frame, a second end of the second upright is connected to the third wheel set, and the second upright is connected to the chassis. BRIEF DESCRIPTION OF DRAWINGS

[0019] The following drawings for embodiments of the present disclosure are hereby incorporated into this disclosure as part of the present disclosure to provide a further understanding of the present disclosure. The embodiments of the present disclosure, as described in the drawings and their descriptions, serve to explain the principles of the present disclosure. In the drawings,

[0020] FIG. 1 is a perspective view of a transport vehicle according to a preferred embodiment of the present disclosure, with the first side panel assembly in an extended position and the floor in an operational position;

[0021] FIG. 2 is a perspective view of a transport vehicle according to a preferred embodiment of the present disclosure, with the first side panel assembly in an extended position and the floor in the process of being flipped over to the first side panel assembly;

[0022] FIG. 3 is a perspective view of a transport vehicle according to a preferred embodiment of the present disclosure, with the first side panel assembly in an extended position and the floor flipped over to the first side panel assembly;

[0023] FIG. 4 is a perspective view of a transport vehicle according to a preferred embodiment of the present disclosure, with the floor flipped over to the first side panel assembly and the first side panel assembly in a retracted position;

[0024] FIG. 5 is a perspective view of a chassis;

[0025] FIG. 6 is a perspective view of a fixed rod;

[0026] FIG. 7 is a perspective view of a disassembly rod;

[0027] FIG. 8 is an enlarged view of section A in FIG. 1; and

[0028] FIG. 9 is an enlarged view of section B in FIG. 2.

[0029] Reference Sign Description 100: undercarriage 101: main beam 102: vertical rod 103: second wheel set 104: dismounting rod 105: fixing rod 106: protruding portion 107: passing portion 108: second mounting hole 109: nut 150: side panel 151: bottom panel 152: first insertion hole 153: second insertion hole 154: connecting panel 155: mounting square tube 110: bottom plate 111: fastener 112: protruding block 120: first side piece assembly 121: long slot 122: first wheel set 123: first side plate frame 124: first stand 125: through opening 126: locking member 130: flip-up lifting mechanism 131: flip plate 132: lifting pin 133: split pin 134: gasket 140: second side piece assembly 141: third wheel set 142: second side plate frame 143: second stand AX1: first pivot axis AX2: second pivot axis D1: vertical direction D2: length direction D3: width direction 160: transport vehicle DETAILED DESCRIPTION

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

[0031] In this document, ordinal numbers such as "first" and "second" cited in the present disclosure are merely identifiers, and have no other meanings, such as a specific order, etc. Also, for example, the term "first component" itself does not imply the existence of "second component", and the term "second component" itself does not imply the existence of "first component".

[0032] In the present text, "upper", "lower", "front", "rear", "left", "right" and the like are used merely to indicate relative positional relationships between the relevant parts, and do not limit the absolute positions of these relevant parts.

[0033] In the present text, "equal", "same" and the like are not strictly limited in the mathematical and / or geometric sense, but also include errors that can be understood by those skilled in the art and allowed by manufacturing or use.

[0034] Unless otherwise specified, the numerical ranges in the present text include not only the entire ranges therein, but also several sub-ranges contained therein.

[0035] At present, with the development of the transportation field, modularization and standardization design are becoming more and more important. The transportation vehicle using modularization and standardization design can improve the flexibility and reusability of the carrier, in addition, the parts can be universal, thereby facilitating maintenance, replacement and upgrading, improving the service life of the transportation carrier, and being green and environmentally friendly. In addition, the modularization and standardization design of the transportation carrier can also play a role in improving space utilization.

[0036] Figures 1 to 9 show a transportation carrier 160 according to the present disclosure, which comprises a chassis 100 and a first side panel assembly 120. The chassis 100 comprises a main beam 101 and a vertical rod 102 arranged at the end of the main beam 101, and the vertical rod 102 comprises a fixed rod 105 connected to the main beam 101 and a detachable rod 104 detachably connected to the fixed rod 105.

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

[0038] In which, the fixed rod 105 does not protrude in the vertical direction D1 from the first side panel assembly 120 in the retracted position.

[0039] According to the transportation carrier 160 of the present disclosure, when the first side panel assembly 120 is in the retracted position, the vertical rod 102 passes out through the opening 125 of the first side panel assembly 120, and the detachable rod 104 of the vertical rod 102 is removed, at this time the fixed rod 105 does not protrude in the vertical direction D1 from the first side panel assembly 120, so as to facilitate the stacking and placement of the transportation carrier 160, improve the space utilization, and facilitate the storage and transportation of the transportation carrier 160.

[0040] The transport carrier 160 further comprises a flip-up mechanism 130 and a bottom plate 110, the bottom plate 110, the chassis 100 and the first side panel assembly 120 are switched among various modes by the flip-up mechanism 130. For example, FIG. 1 shows the working state of the transport carrier 160, at this time, the first side panel assembly 120 is located at the unfolded position and extends along the vertical direction D1. For another example, FIG. 2, the bottom plate 110 is flipped up towards the first side panel assembly 120 by the flip-up mechanism 130, until FIG. 3 shows that the bottom plate 110 is attached to the first side panel assembly 120, at this time, the transport carrier 160 can be moved laterally and nested. For another example, FIG. 4, the bottom plate 110 is attached to the first side panel assembly 120 and flipped up with the first side panel assembly 120 to the retracted position, so that the transport carrier 160 can be stacked.

[0041] Referring to FIGS. 1 and 2, the transport carrier 160 further comprises 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 comprises a first wheel set 122, the middle part of the chassis 100 is provided with a second wheel set 103, and the second side panel assembly 140 comprises a third wheel set 141. The second wheel set 103 is a fixed wheel set and has a brake device, and the second wheel set 103 and the third wheel set 141 are both universal wheel sets.

[0042] When the chassis 100 is in a horizontal position (as shown in FIG. 1), the second wheel set 103 is lower than the first wheel set 122 and the third wheel set 141, so that when the transport carrier 160 is in normal use, the second wheel set 103 contacts the ground, and the chassis 100 will have a slight inclination angle, so that the first wheel set 122 or the third wheel set 141 contacts the ground, at this time, a total of two wheel sets (a total of four wheels) support the chassis 100 and the bottom plate 110, thereby facilitating the transportation of goods and the like. Since the second wheel set 103 has a brake device, the transport carrier 160 can be braked and controlled.

[0043] When the bottom plate 110 is flipped up and attached to the first side panel assembly 120, the vertical rod 102 is lifted relative to the first side panel assembly 120 under the action of the flip-up mechanism 130, so that the second wheel set 103 is separated from the ground, at this time, the transport carrier 160 is moved by the first wheel set 122 and the third wheel set 141, and can be nested with another transport carrier 160 laterally, thereby saving storage area.

[0044] More specifically to the structure of the transport carrier 160. Referring to FIGS. 1 and 2, the first side panel assembly 120 further comprises a first side plate frame 123 and a first upright column 124. Along the vertical direction D1, the upper end of the first upright column 124 is connected to the first side plate frame 123, and the lower end of the first upright column 124 is connected to the first wheel set 122.

[0045] Referring to FIGS. 4 and 8, the first upright 124 is movably connected to the vertical rod 102 between the unfolded position and the retracted position, and the through hole 125 is provided on the first upright 124. When the first side panel assembly 120 is in the retracted position, the vertical rod 102 is inserted through the through hole 125 into the first upright 124, so that the first side panel assembly 120 is limited relative to the chassis 100, and the first side panel assembly 120 is more stable in the retracted position.

[0046] Referring to FIGS. 3 and 5, the chassis 100 further comprises a mounting square tube 155 provided on the main beam 101 away from the first side panel assembly 120 and fixed to the main beam 101, and the lower end of the mounting square tube 155 is connected to the third wheel set 141.

[0047] Referring to FIG. 1, the second side panel assembly 140 further comprises a second side plate frame 142 and a second upright 143. In the vertical direction D1, the upper end of the second upright 143 is connected to the second side plate frame 142, and the lower end of the second upright 143 is inserted into the mounting square tube 155 from the upper end of the mounting square tube 155 and is fixed to the mounting square tube 155 by the fastener 111 (not shown in the figure). Thus, when the transport vehicle 160 is in the folded state (see FIG. 4), the fastener 111 of the second upright 143 and the mounting square tube 155 can be removed, so that the second upright 143 and the second side plate frame 142 are horizontally stacked above the first side panel assembly 120, reducing the height dimension of the transport vehicle 160 in the vertical direction D1, facilitating transportation.

[0048] Referring to FIGS. 5 and 6, the fixing rod 105 is in the form of a square tube, and the side walls of the fixing rod 105 are fixedly connected to the end of the main beam 101 close to the first side panel assembly 120.

[0049] Referring to FIG. 7, the dismounting rod 104 comprises a protruding part 106 and a penetrating part 107 connected to the protruding part 106 and penetrating into the fixing rod 105, so that the connection between the dismounting rod 104 and the fixing rod 105 is more stable.

[0050] In detail, referring to FIGS. 6 and 7, the protruding part 106 is in the form of a square tube. The penetrating part 107 comprises two side plates 150, a connecting plate 154, and a bottom plate 151. The side plates 150 and the connecting plate 154 both extend in the vertical direction D1, and the two side plates 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 plate 151 is provided at the lower end of the side plates 150 and the connecting plate 154, and the bottom plate 151 is fixedly connected to the side plates 150 and the connecting plate 154, respectively. In addition, the upper ends of the connecting plate 154 and the side plates 150 are connected to the bottom of the protruding part 106.

[0051] When the dismounting rod 104 and the fixing rod 105 are fixed, the penetrating part 107 is penetrated into the fixing rod 105 until the bottom plate 151 contacts the inner bottom surface of the fixing rod 105, and the bottom surface of the protruding part 106 abuts against the upper end of the fixing rod 105, so that the dismounting rod 104 and the fixing rod 105 are connected together and have good integrity, which is beneficial to the assembly of the vertical rod 102 and the first stand 124. In addition, the vertical rod 102 has a large size along the vertical direction D1, and can better cooperate with (especially vertically relative movement) the first stand 124.

[0052] Optionally, the projection of the protruding part 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 installation between the dismounting rod 104 and the fixing rod 105 is smooth, further enhancing the integrity of the dismounting rod 104 and the fixing rod 105, which is beneficial to the assembly of the vertical rod 102 and the first stand 124.

[0053] Optionally, the penetrating part 107 is provided with a nut 109, the penetrating part 107 is provided with a first mounting hole (not shown in the figure), and the fixing rod 105 is provided with a second mounting hole 108. The vertical rod 102 further comprises a fastener 111, the fastener 111 penetrates the second mounting hole 108, the first mounting hole and is threadedly connected with the nut 109, so that the dismounting rod 104 and the fixing rod 105 are fixed together, realizing the detachable installation of the dismounting rod 104 and the fixing rod 105, and facilitating the dismounting of the dismounting rod 104 after the transport carrier 160 is folded.

[0054] Specifically, as shown in FIGS. 6 and 7, the first mounting hole and the nut 109 are arranged on the bottom plate 151, and the second mounting hole 108 is arranged on the bottom surface of the fixing rod 105. When the penetrating part 107 of the dismounting rod 104 is penetrated into the fixing rod 105 in place, the bottom plate 151 of the penetrating part 107 contacts the inner bottom surface of the fixing rod 105, and the first mounting hole is aligned with the second mounting hole 108. Thus, the fastener 111 is conveniently mounted from the bottom of the fixing rod 105, so that the dismounting rod 104 and the fixing rod 105 are connected together. In addition, when the transport carrier 160 is folded, the bottom surface of the fixing rod 105 is not blocked by structures, and the fastener 111 is conveniently dismounted from the bottom surface of the fixing rod 105 by the staff, realizing the dismounting of the dismounting rod 104.

[0055] Further to the structure of the turnover lifting mechanism 130 and the bottom plate 110.

[0056] As shown in FIG. 8 and FIG. 9, the first upright column 124 is provided with a long slot 121, and the flip-up mechanism 130 includes a flip plate 131 and a lifting pin 132, the lifting pin 132 is threaded through the fixed rod 105 and the first upright column 124 through the long slot 121, so that the vertical rod 102 is movably arranged along the vertical direction D1 relative to the first upright column 124 and is pivotably arranged around the second pivot axis AX2 (i.e. the axis of the lifting pin 132).

[0057] Specifically, referring to FIG. 6, the sidewall of the fixed rod 105 is provided with a first insertion hole 152, and referring to FIG. 7, correspondingly, the sidewall of the side panel 150 is provided with a second insertion hole 153. As shown in FIG. 8, when the dismounting rod 104 is fixed with the fixed rod 105, the first insertion hole 152 is aligned with the second insertion hole 153, which is used for threading the lifting pin 132, so that the threaded connection between the lifting pin 132 and the vertical rod 102 is more stable.

[0058] Optionally, as shown in FIG. 8, the flip-up mechanism 130 further includes two split pins 133 and two spacers 134, along the width direction D3, the two spacers 134 are sleeved on the lifting pin 132 and arranged on both sides of the first upright column 124. The split pin 133 is threaded through the lifting pin 132 and arranged on the side of the spacer 134 away from the first upright column 124, thereby limiting the lifting pin 132, achieving the detachable installation of the lifting pin 132, and making the stable connection between the vertical rod 102 and the first upright column 124.

[0059] As shown in FIG. 3, the first end of the flip plate 131 is connected to the bottom plate 110 by the fastener 111, and referring to FIG. 8 and FIG. 9, the second end of the flip plate 131 is pivotably connected to the first upright column 124 around the first pivot axis AX1 parallel to the axis of the lifting pin 132. Wherein, in the process of the bottom plate 110 adhering to at least part of the first side plate frame 123, the flip plate 131 lifts the lifting pin 132 along the vertical direction D1, so that the lifting pin 132 moves along the long slot 121. Thus, the vertical rod 102 is lifted relative to the first upright column 124 along the vertical direction D1, so that one end of the bottom frame 100 close to the first side panel assembly 120 is lifted, so that the second wheel set 103 can be lifted off the ground, and then the transport carrier 160 can move laterally by relying on the first wheel set 122 and the third wheel set 141, facilitating the telescoping between the transport carriers 160.

[0060] Optionally, referring to FIG. 9, the flip plate 131 can be a plate structure with two bending angles, so as to guide the lifting pin 132 to the inclined surface in the middle of the flip plate 131 during the upward movement of the bottom plate 110, and when the lifting pin 132 is located at the top end of the long slot 121, the lifting pin 132 is located at the clamping position of the bending angle of the flip plate 131 and the top end of the long slot 121, facilitating 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 plate frame 123 is provided with a locking member 126, which is used to lock the bottom plate 110 attached to the first side plate frame 123, so that the bottom plate 110 and the first side plate frame 123 can be connected together, facilitating subsequent overall folding.

[0062] Further, the end of the bottom plate 110 away from the flap 131 is provided with a protrusion 112, and the locking member 126 is pivotally connected to the first side plate frame 123. After the bottom plate 110 is attached to the first side plate frame 123, the locking member 126 is rotated so that it is sleeved on the protrusion 112 attached to the bottom plate 110, thereby locking the bottom plate 110 and the first side plate frame 123 together, preventing the first side plate frame 123 from shaking the bottom plate 110 during pivoting to the horizontal position, and facilitating folding and transporting the carrier 160.

[0063] Unless otherwise defined, 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 belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of this disclosure. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items. As used herein, the terms "set," "have," and "is" can mean either directly or indirectly. The features described in one embodiment can be applied to another embodiment, either alone or in combination, unless the features are not applicable or are otherwise stated.

[0064] The present disclosure has been described through the above-described embodiments, but it should be understood that the above-described embodiments are only for the purpose of example and illustration, and are not intended to limit the present disclosure to the described embodiments. Those skilled in the art can understand that more variations and modifications can be made according to the teachings of the present disclosure, and these variations and modifications all fall within the scope of the present disclosure.

Claims

1. A transport vehicle (160), characterized by, The transport vehicle (160) comprises: a chassis (100), the chassis (100) comprising: a main beam (101); and a vertical pole (102) disposed at an end of the main beam (101), the vertical pole (102) comprising: a fixed pole (105) connected to the main beam (101); and a detachable pole (104) detachably connected to the fixed pole (105); and a first side sheet assembly (120) movably connected to the vertical pole (102) between an unfolded position and a retracted position, the first side sheet assembly (120) being provided with a through opening (125) for the vertical pole (102) to pass through when the first side sheet assembly (120) is in the retracted position; wherein the fixed pole (105) does not protrude out of the first side sheet assembly (120) in a vertical direction (D1) when the first side sheet assembly (120) is in the retracted position.

2. The transport vehicle (160) according to claim 1, characterized in that The detachable pole (104) comprises: a protruding portion (106); and a penetrating portion (107) connected to the protruding portion (106), the penetrating portion (107) penetrating into the fixed pole (105).

3. The transport vehicle (160) according to claim 2, characterized in that A nut (109) is disposed in the penetrating portion (107); the penetrating portion (107) is provided with a first mounting hole, and the fixed pole (105) is provided with a second mounting hole (108); the vertical pole (102) further comprises a fastener (111) penetrating the second mounting hole (108), the first mounting hole, and threadedly cooperating with the nut (109).

4. The transport vehicle (160) according to claim 3, characterized in that The first mounting hole is disposed on a bottom surface of the penetrating portion (107), and the second mounting hole (108) is disposed on a bottom surface of the fixed pole (105).

5. The transport vehicle (160) according to any one of claims 2 to 4, characterized in that, A projection of the protruding portion (106) along the vertical direction (D1) coincides with a projection of the fixed pole (105) along the vertical direction (D1).

6. The transport vehicle (160) according to any one of claims 1 to 5, wherein the first side sheet assembly (120) comprises: a first wheel set (122); a first side plate frame (123); and a first upright column (124) having a first end connected to the first side plate frame (123) and a second end connected to the first wheel set (122); the first upright column (124) is movably connected to the vertical pole (102) between an unfolded position and a retracted position, and the through opening (125) is disposed on the first upright column (124).

7. The transport vehicle (160) according to claim 6, characterized by The first upright column (124) is provided with a long slot (121), and the transport vehicle (160) further comprises: a bottom plate (110); and a turnover lifting mechanism (130) comprising: a first lifting mechanism (131) connected to the bottom plate (110); and a second lifting mechanism (132) connected to the first lifting mechanism (131). a lifting pin (132) penetrating through the fixed rod (105) and the first upright column (124) through the long slot (121); and a flap (131) having a first end connected to the bottom plate (110) and a second end pivotally connected to the first upright column (124) about a first pivot axis (AX1) parallel to an axis of the lifting pin (132); wherein the transport carrier (160) is configured to lift the lifting pin (132) in a vertical direction (D1) during a process in which the flap (131) rotates about the first pivot axis (AX1) to make the bottom plate (110) fit to at least part of the first side plate frame (123).

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

9. The transport carrier (160) according to any one of claims 6 to 8, characterized in that, the transport carrier (160) further comprises a second side panel assembly (140), and the first side panel assembly (120) and the second side panel assembly (140) are respectively arranged at two ends of the chassis (100); a middle part of the chassis (100) is provided with a second wheel set (103), and the second side panel assembly (140) comprises a third wheel set (141); the second wheel set (103) is a fixed wheel set and has a brake device, the first wheel set (122) and the third wheel set (141) are both universal wheel sets.

10. The transport vehicle (160) of claim 9, characterized by The second side panel assembly (140) comprises: a second side plate frame (142); and a second upright column (143) having a first end connected to the second side plate frame (142) and a second end connected to the third wheel set (141), and the second upright column (143) is connected to the chassis (100).

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