Six-wheeled trolley

Abstract

A six-wheeled trolley, comprising a chassis, a bottom plate, a first side panel assembly and a flipping and lifting assembly, wherein the bottom plate is disposed above the chassis; the first side panel assembly is disposed at an end portion of the chassis and is provided with an elongated slot; the flipping and lifting assembly comprises flipping plates and a lifting pin; the lifting pin extends to the chassis, and passes through the elongated slot to the first side panel assembly; and a first end of each flipping plate is connected to the bottom plate, and a second end of each flipping plate is pivotably connected to the first side panel assembly around a first pivot axis parallel to the axis of the lifting pin, the first pivot axis being parallel to the axis of the lifting pin. The six-wheeled trolley is configured such that during the process of the flipping plates rotating around the first pivot axis to make the bottom plate fit against at least part of the first side panel assembly, the flipping plates support the lifting pin in a vertical direction.

Description

A six-wheel trolley

[0001] The present application claims priority to Chinese Patent Application No. 2024219286885, filed on August 8, 2024, and entitled "A Modular Six-Wheel Trolley", and Chinese Patent Application No. 2024110902778, filed on August 8, 2024, and entitled "A Modular Six-Wheel Trolley", 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 six-wheel trolley. BACKGROUND

[0003] Current transportation vehicles, especially six-wheel trolleys, occupy a large storage space after use.

[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 six-wheel trolley, which comprises a chassis, a bottom plate, a first side piece assembly, and a turnover lifting assembly.

[0007] The bottom plate is arranged above the chassis. The first side piece assembly is arranged at the end of the chassis, and the first side piece assembly is provided with a long slot.

[0008] The turnover lifting assembly comprises a lifting pin and a turnover plate. The lifting pin is arranged through the chassis and the long slot to the first side piece assembly. The first end of the turnover plate is connected to the bottom plate. The second end of the turnover plate is pivotally connected to the first side piece assembly about a first pivot axis, which is parallel to the axis of the lifting pin.

[0009] In the process of rotating the turnover plate about the first pivot axis to make the bottom plate fit to at least part of the first side piece assembly, the turnover plate lifts the lifting pin in the vertical direction.

[0010] Optionally, the turnover lifting assembly further comprises a first connecting portion, a second connecting portion and an abutting portion. The first connecting portion is connected to the bottom plate. The second connecting portion is connected to the first side piece assembly. The abutting portion is connected to the first connecting portion and the second connecting portion respectively, and the abutting portion is used for abutting to the lifting pin.

[0011] Optionally, the abutting portion is arranged at an angle with the second connecting portion. And / or, the abutting portion is arranged at an angle with the first connecting portion.

[0012] Optionally, the six-wheel trolley further comprises a second side piece assembly, and the first side piece assembly and the second side piece assembly are arranged at two ends of the chassis respectively.

[0013] A first wheel set is arranged at the middle part of the chassis, the first side piece assembly comprises a second wheel set, and the second side piece assembly comprises a third wheel set.

[0014] The first wheel set is a fixed wheel set and has a brake, and the second wheel set and the third wheel set are both universal wheel sets.

[0015] Optionally, the first side piece assembly further comprises a first side plate frame and a first vertical column. A first end of the first vertical column is connected to the first side plate frame, and a second end of the first vertical column is connected to the second wheel set.

[0016] The chassis comprises a vertical square tube, the vertical square tube is arranged in the first vertical column and is in sliding cooperation with the first vertical column. The lifting pin is arranged through the vertical square tube, and the long slot is arranged in the first vertical column.

[0017] Optionally, the first vertical column is pivotable relative to the vertical square tube around an axis of the lifting pin between a vertical position and a horizontal position. The first vertical column is provided with a through opening, and the through opening is used for allowing an upper end of the vertical square tube to pass therethrough when the first side piece assembly is located at the horizontal position.

[0018] Optionally, the vertical square tube comprises a lower tube and an upper tube. The upper tube is detachably connected to the lower tube, and the lifting pin is arranged through the lower tube.

[0019] Optionally, the turnover lifting assembly further comprises two spacers and two split pins. The two spacers are sleeved on the lifting pin and arranged at two sides of the first vertical column respectively, and an outer diameter of the spacer is greater than a width of the long slot. The two split pins are arranged correspondingly with the two spacers respectively, the split pin is arranged through the lifting pin and arranged at a side of the corresponding spacer away from the first vertical column.

[0020] Optionally, the first side plate frame is provided with a locking member. The locking member is used to lock the bottom plate attached to the first side plate frame.

[0021] Optionally, an end of the bottom plate away from the flap is provided with a protrusion. The locking member is pivotally connected to the first side plate frame. The locking member is used to be sleeved to the protrusion of the bottom plate attached to the first side plate frame.

[0022] Optionally, the second side piece assembly comprises a second side plate frame and a second stand column. A first end of the second stand column is connected to the second side plate frame. A second end of the second stand column is connected to the third wheel set. The second stand column is connected to the bottom frame.

[0023] Optionally, the first pivot axis is located on a side of the lifting pin away from the bottom plate. BRIEF DESCRIPTION OF DRAWINGS

[0024] The following drawings for the embodiments of the present disclosure are hereby incorporated as a part of the present disclosure for the purpose of understanding the present disclosure. The embodiments of the present disclosure and the description thereof shown in the drawings are used to explain the principles of the present disclosure. In the drawings,

[0025] Fig. 1 is a perspective view of a six-wheel trolley according to a preferred embodiment of the present disclosure;

[0026] Fig. 2 is an enlarged view of part A in Fig. 1;

[0027] Fig. 3 is a schematic view of the connection between the bottom plate and the flap;

[0028] Fig. 4 is a perspective view of the bottom frame;

[0029] Fig. 5 is a perspective view of the first side piece assembly from one viewing angle;

[0030] Fig. 6 is a perspective view of the first side piece assembly from another viewing angle;

[0031] Fig. 7 is a perspective view of the bottom plate being flipped in the six-wheel trolley;

[0032] Fig. 8 is an enlarged view of part B in Fig. 7;

[0033] Fig. 9 is a perspective view of the bottom plate being flipped to the first side piece assembly in the six-wheel trolley, at which time the first side piece assembly is in a vertical position;

[0034] Fig. 10 is a perspective view of the bottom plate; and

[0035] Fig. 11 is a perspective view of the first side piece assembly being pivoted to a horizontal position in the six-wheel trolley.

[0036] Explanation of Reference Numerals 100: base frame 101: main beam 102: vertical square tube 103: first wheel set 104: upper tube 105: lower tube 110: bottom plate 111: fastener 112: protrusion 120: first side plate assembly 121: long slot 122: second wheel set 123: first side plate frame 124: first stand 125: through hole 126: locking member 130: flip-up lifting assembly 131: flip plate 132: lifting pin 133: cotter pin 134: washer 140: second side plate assembly 141: third wheel set 142: second side plate frame 143: second stand 135: first connecting portion 136: second connecting portion 137: abutting portion 106: insertion hole 107: mounting square tube AX1: first pivot axis AX2: second pivot axis D1: vertical direction D2: length direction D3: width direction 150: six-wheel dolly DETAILED DESCRIPTION

[0037] 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.

[0038] In this document, ordinal numbers such as "first" and "second" cited in the present disclosure are merely identifiers, and have no other meaning, 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".

[0039] In this document, "upper", "lower", "front", "rear", "left", "right", etc. are used only to indicate relative positional relationships between the relevant parts, and do not limit the absolute positions of the relevant parts.

[0040] In this document, "approximately," "about," and the like are used to describe and account for small fluctuations, e.g., due to manufacturing or other factors. Unless stated otherwise, the terms "approximately," "about," and the like are used in the context of this document to account for variations that are due to expected variations in manufacturing or other factors.

[0041] Unless otherwise indicated, numerical ranges herein are inclusive of the recited two endpoints and include any sub-ranges falling within the broader range.

[0042] At present, with the development of the transportation field, modularization and standardization design is becoming more and more important. The transportation vehicle adopting 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.

[0043] FIG. 1 shows a six-wheel dolly 150 according to the present disclosure, the six-wheel dolly 150 comprising a chassis 100, a bottom plate 110, a first side sheet assembly 120, and a turnover lifting assembly 130, the bottom plate 110 being arranged above the chassis 100. As shown in FIG. 2, the first side sheet assembly 120 is arranged at the end of the chassis 100, and the first side sheet assembly 120 is provided with a long slot 121.

[0044] In combination with FIG. 3, the turnover lifting assembly 130 comprises a turnover plate 131 and a lifting pin 132, the lifting pin 132 being arranged through the chassis 100 and the first side sheet assembly 120 through the long slot 121. The first end of the turnover plate 131 is connected to the bottom plate 110, and the second end of the turnover plate 131 is pivotably connected to the first side sheet assembly 120 about a first pivot axis AX1 parallel to the axis of the lifting pin 132.

[0045] FIG. 4 shows the three-dimensional structure of the chassis 100, and FIGS. 5 and 6 show the three-dimensional structures of the first side sheet assembly 120 from two perspectives.

[0046] Referring to FIGS. 7 and 9, in the process of the bottom plate 110 being attached to at least part of the first side sheet assembly 120, the turnover plate 131 lifts the lifting pin 132 in the vertical direction D1.

[0047] With reference to FIG. 10, according to the six-wheel dolly 150 of the present disclosure, the bottom plate 110 is attached to the first side piece assembly 120, so that the flap 131 lifts the lifting pin 132, so that the lifting pin 132 moves along the long slot 121, so that the chassis 100 is lifted relative to the first side piece assembly 120 at one end close to the first side piece assembly 120, so that the six-wheel dolly 150 can be moved laterally and nested together between the six-wheel dollies 150, which is beneficial to save the storage space of the six-wheel dolly 150. With reference to FIG. 11, when the bottom plate 110 is attached to the first side piece assembly 120, the first side piece assembly 120 is rotated around the lifting pin 132 as a whole, so that the first side piece assembly 120 can be folded, which is also beneficial to save the storage space of the six-wheel dolly 150.

[0048] With reference to FIG. 1, the six-wheel dolly 150 further comprises a second side piece assembly 140, and the first side piece assembly 120 and the second side piece assembly 140 are respectively arranged at two ends of the chassis 100 along the length direction D2 of the six-wheel dolly 150. The middle part of the chassis 100 is provided with a first wheel set 103, the first side piece assembly 120 comprises a second wheel set 122, and the second side piece assembly 140 comprises a third wheel set 141. The first wheel set 103 is a fixed wheel set and has a brake, and the second wheel set 122 and the third wheel set 141 are both universal wheel sets.

[0049] When the chassis 100 is in a horizontal position, the first wheel set 103 is lower than the second wheel set 122 and the third wheel set 141, so that when the six-wheel dolly 150 is normally used, the first wheel set 103 contacts the ground, and the chassis 100 has a slight inclination angle, so that the second 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 user to transport goods and the like. Since the first wheel set 103 has a brake, the six-wheel dolly 150 can be braked and controlled.

[0050] With reference to FIGS. 7 to 9, when the bottom plate 110 is attached to the first side piece assembly 120, the flap 131 lifts the lifting pin 132 to rise in the vertical direction D1, so that the end of the chassis 100 close to the first side piece assembly 120 is moved upward relative to the second wheel set 122, so that the first wheel set 103 is separated from the ground, at this time, the six-wheel dolly 150 moves through the second wheel set 122 and the third wheel set 141, and can be nested with another six-wheel dolly 150 laterally (see FIG. 10), thereby saving the storage area.

[0051] With reference to FIGS. 1 and 4, the chassis 100 comprises a main beam 101 and a vertical square tube 102, the main beam 101 extends along the length direction D2, and the vertical square tube 102 is arranged at one end of the main beam 101 close to the first side piece assembly 120, and the second side piece assembly 140 is arranged at one end of the main beam 101 away from the vertical square tube 102.

[0052] As shown in FIGS. 5 and 6, the first side panel assembly 120 further comprises a first side plate frame 123 and a first vertical column 124, the upper end of the first vertical column 124 being connected to the first side plate frame 123, and the lower end of the first vertical column 124 being connected to the second wheel set 122.

[0053] Referring to FIG. 2, the connection between the base frame 100 and the first side panel assembly 120 is described in detail. The vertical square tube 102 is arranged in the first vertical column 124 and is in sliding cooperation with the first vertical column 124. As shown in FIG. 4, the side wall of the vertical square tube 102 is provided with a plug hole 106, and the lifting pin 132 is arranged through the plug hole 106 to the vertical square tube 102. In addition, a long slot 121 is arranged on the side wall of the first vertical column 124. The two ends of the lifting pin 132 extend to the outside of the first vertical column 124 through the long slot 121, so that the vertical square tube 102 is movably arranged relative to the first vertical column 124 along the vertical direction D1.

[0054] Optionally, referring to FIGS. 1 and 2, the turnover lifting assembly 130 further comprises two split pins 133 and two washers 134. Along the width direction D3, the two washers 134 are sleeved on the lifting pin 132 and arranged on both sides of the first vertical column 124. The outer diameter of the washer 134 is greater than the width of the long slot 121. The two split pins 133 are arranged correspondingly with the two washers 134. The split pin 133 is arranged through the lifting pin 132 and on the side of the corresponding washer 134 away from the first vertical column 124, so as to limit the lifting pin 132, realize the detachable installation of the lifting pin 132, and stably connect the vertical square tube 102 and the first vertical column 124.

[0055] Optionally, referring to FIGS. 1 and 7, the second side panel assembly 140 according to the embodiment further comprises a second side plate frame 142 and a second vertical column 143, the upper end of the second vertical column 143 being connected to the second side plate frame 142, and the lower end of the second vertical column 143 being connected to the third wheel set 141. In addition, the second vertical column 143 is connected to the end of the main beam 101 away from the vertical square tube 102. Optionally, referring to FIG. 4, the end of the main beam 101 away from the vertical square tube 102 is provided with a mounting square tube 107, the mounting square tube 107 being fixed to the main beam 101. The lower end of the mounting square tube 107 is connected to the third wheel set 141. The second vertical column 143 is arranged through the mounting square tube 107 from the upper end of the mounting square tube 107 to the mounting square tube 107 and is fixed to the mounting square tube 107 by the fastener 111 such as a bolt or a pin, so that the second side plate frame 142 can be folded on the base frame 100 (as shown in FIG. 11).

[0056] In addition, the second side panel assembly 140 can also be configured to be consistent with the structure of the first side panel assembly 120, and correspondingly, the main beam 101 is connected by another vertical square tube 102 and the turnover lifting assembly 130 and the second side panel assembly 140, so that the first side panel assembly 120 and the second side panel assembly 140 at both ends of the six-wheel trolley 150 can be folded (as shown in the first side panel assembly 120 of FIG. 11), further saving the storage space of the six-wheel trolley 150.

[0057] To fold the first side panel assembly 120, referring to FIGS. 9 and 11, the first side panel assembly 120 is pivotable relative to the vertical square tube 102 about the axis of the lifting pin 132 (i.e., the second pivot axis AX2 in FIG. 2) between a vertical position and a horizontal position. When the first side panel assembly 120 is in the horizontal position, the bottom plate 110 and the first side plate frame 123 are both arranged horizontally and folded onto the bottom frame 100, and then the second side plate frame 142 is folded on the first side plate frame 123, thereby reducing the size of the six-wheel trolley 150 in the vertical direction D1, further saving the storage space of the six-wheel trolley 150.

[0058] Optionally, referring to FIGS. 5 and 6, the first upright column 124 is provided with a through opening 125. In combination with FIG. 4, the through opening 125 is used to pass the upper end of the vertical square tube 102 therethrough when the first side panel assembly 120 is in the horizontal position, so that the first upright column 124 can be pivoted to the horizontal position, preventing the vertical square tube 102 and the first upright column 124 from interfering. The vertical square tube 102 includes a lower tube 105 and an upper tube 104, the upper tube 104 is detachably connected to the lower tube 105, and the lower tube 105 is fixed with the main beam 101, so that when the first side panel assembly 120 is in the folded state as shown in FIG. 11, the upper tube 104 can be removed, so that the vertical square tube 102 does not protrude from the first side plate frame 123 and the second side plate frame 142 in the vertical direction D1, so that the top of the folded six-wheel trolley 150 is more flat, facilitating the transportation of the six-wheel trolley 150. The lifting pin 132 is inserted into the lower tube 105, so that the disassembly of the upper tube 104 does not affect the connection between the first side panel assembly 120 and the first upright column 124.

[0059] Optionally, referring to FIGS. 2 and 8, the first pivot axis AX1 is located on the side of the lifting pin 132 away from the bottom plate 110, and in the process of lifting the lifting pin 132 by the turnover lifting assembly 130, the lifting pin 132 is located between the bottom plate 110 and the first pivot axis AX1, which is beneficial to prevent the lifting pin 132 from being separated from the turnover plate 131, so that the transmission of the turnover lifting assembly 130 is more stable.

[0060] Optionally, referring to FIG. 8, the flap 131 comprises a first connecting portion 135, an abutting portion 137 and a second connecting portion 136. The first connecting portion 135 is connected to the bottom surface of the bottom plate 110 and is fixed to the bottom plate 110 by the fastener 111. The second connecting portion 136 is connected to the first upright column 124 away from the bottom plate 110. Specifically, the second connecting portion 136 is hinged to the side wall of the first upright column 124 away from the bottom plate 110. The abutting portion 137 is connected to the first connecting portion 135 and the second connecting portion 136, respectively. During the process of lifting the lifting pin 132 by the flap 131, the flap 131 mainly abuts to the lifting pin 132 by the abutting portion 137. The structure of the flap 131 is reasonable, so that the bottom plate 110 is rotatable relative to the first upright column 124 about the first pivot axis AX1, and during the process of attaching the bottom plate 110 to the first side plate frame 123, the abutting portion 137 of the flap 131 lifts the lifting pin 132, so that the chassis 100 is lifted relative to the first upright column 124.

[0061] Optionally, referring to FIG. 8, the abutting portion 137 is arranged at an angle with the second connecting portion 136, so that when the flap 131 lifts the lifting pin 132 to the highest position, the angle between the abutting portion 137 and the second connecting portion 136 cooperates with the inner wall of the long slot 121, so as to provide stable pivoting of the lifting pin 132. Optionally, the abutting portion 137 is arranged at an angle with the first connecting portion 135, so that during the pivoting of the flap 131, the first connecting portion 135 can guide the lifting pin 132 to the abutting portion 137.

[0062] Optionally, referring to FIGS. 5 and 9, the first side plate frame 123 is provided with a locking piece 126 for locking the bottom plate 110 attached to the first side plate frame 123, so as to connect the bottom plate 110 and the first side plate frame 123 together, facilitating subsequent overall folding. Optionally, the end of the bottom plate 110 away from the flap 131 is provided with a protrusion 112, and the locking piece 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 piece 126 is rotated so as to be sleeved on the protrusion 112 attached to the bottom plate 110, so as to lock 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, facilitating folding of the six-wheel trolley 150.

[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 singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. As used herein, the term "or" as used herein, unless otherwise indicated, is used in a non-exclusive sense. As used herein, the term "set" can mean either a component is directly attached to another component or a component is attached to another component through an intermediate component. The features described in one embodiment herein can be applied to another embodiment, either individually or in combination with other features, unless such application is not applicable or is otherwise indicated.

[0064] The present disclosure has been described above with the foregoing embodiments, but it should be understood that the foregoing embodiments are merely for the purpose of illustration and description, and are not intended to limit the present disclosure to the described embodiments. It will be understood by those skilled in the art that various modifications and changes can be made thereto without departing from the scope of the present disclosure.

Claims

1. A six-wheel dolly (150) characterized by, The six-wheel trolley (150) comprises: a chassis (100); a bottom plate (110) arranged above the chassis (100); a first side sheet assembly (120) arranged at an end of the chassis (100), the first side sheet assembly (120) being provided with a long slot (121); and a turnover lifting assembly (130) comprising: a lifting pin (132) penetrating through the chassis (100) and the first side sheet assembly (120) through the long slot (121); and a turnover plate (131) having a first end connected to the bottom plate (110) and a second end pivotably connected to the first side sheet assembly (120) about a first pivot axis (AX1) parallel to an axis of the lifting pin (132); wherein the six-wheel trolley (150) is configured such that the turnover plate (131) lifts the lifting pin (132) in a vertical direction during a process in which the turnover plate (131) rotates about the first pivot axis (AX1) to make the bottom plate (110) fit to at least part of the first side sheet assembly (120).

2. The six-wheel dolly (150) of claim 1, wherein, The turnover plate (131) comprises: a first connecting portion (135) connected to the bottom plate (110); a second connecting portion (136) connected to the first side sheet assembly (120); and an abutting portion (137) connected to the first connecting portion (135) and the second connecting portion (136) respectively, the abutting portion (137) being used for abutting to the lifting pin (132).

3. The six-wheel dolly (150) of claim 2, wherein, The abutting portion (137) is arranged at an angle with the second connecting portion (136); and / or The abutting portion (137) is arranged at an angle with the first connecting portion (135).

4. The six-wheel dolly (150) according to any one of claims 1 to 3, characterized in that The six-wheel trolley (150) further comprises a second side sheet assembly (140), the first side sheet assembly (120) and the second side sheet assembly (140) being arranged at two ends of the chassis (100) respectively; a middle portion of the chassis (100) is provided with a first wheel set (103), the first side sheet assembly (120) comprises a second wheel set (122), and the second side sheet assembly (140) comprises a third wheel set (141); the first wheel set (103) is a fixed wheel set and has a brake, and the second wheel set (122) and the third wheel set (141) are both universal wheel sets.

5. The six-wheel dolly (150) of claim 4, wherein, The first side sheet assembly (120) further comprises: a first side plate frame (123); and a first stand column (124) having a first end connected to the first side plate frame (123) and a second end connected to the second wheel set (122); The base frame (100) comprises a vertical square tube (102) disposed in the first upright column (124) and in slidable cooperation with the first upright column (124), the lifting pin (132) is disposed through the vertical square tube (102), and the long slot (121) is disposed in the first upright column (124).

6. The six-wheel dolly (150) of claim 5, wherein, The first upright column (124) is pivotable relative to the vertical square tube (102) about an axis of the lifting pin (132) between a vertical position and a horizontal position; the first upright column (124) is provided with a through opening (125) for passing an upper end of the vertical square tube (102) therethrough when the first side panel assembly (120) is in the horizontal position.

7. The six-wheel dolly (150) of claim 6, wherein, The vertical square tube (102) comprises: a lower tube (105); and an upper tube (104) detachably connected to the lower tube (105), wherein the lifting pin (132) is disposed through the lower tube (105).

8. The six-wheel dolly (150) according to any one of claims 5 to 7, characterized in that The turnover lifting assembly (130) further comprises: two spacers (134) sleeved onto the lifting pin (132) and disposed on two sides of the first upright column (124) respectively, an outer diameter of the spacer (134) being greater than a width of the long slot (121); and two split pins (133) disposed corresponding to the two spacers (134) respectively, the split pin (133) being disposed through the lifting pin (132) and on a side of the corresponding spacer (134) away from the first upright column (124).

9. The six-wheel dolly (150) according to any one of claims 5 to 8, characterized in that 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).

10. The six-wheel dolly (150) of claim 9, characterized in that, An end of the bottom plate (110) away from the turnover plate (131) is provided with a protrusion (112), the locking member (126) is pivotably connected to the first side plate frame (123), and the locking member (126) is used for sleeving the protrusion (112) of the bottom plate (110) fitted to the first side plate frame (123).

11. The six-wheel dolly (150) according to any one of claims 4 to 10, characterized in that 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 base frame (100).

12. The six-wheel dolly (150) according to any one of claims 1 to 11, characterized in that The first pivot axis (AX1) is located on a side of the lifting pin (132) away from the bottom plate (110).

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