Transport frame

Abstract

The utility model provides a kind of transport frame.The transport frame includes main chassis, end frame, extension chassis and connecting assembly.The end frame is connected to the end of main chassis along the length direction.The end frame includes a pair of corner posts.The corner posts form a receiving groove.In the state that end frame is used, the opening of receiving groove is directed to the outside of main chassis along the length direction.The extension chassis is movably connected to the end of main chassis along the length direction between first storage position and first unfolded position.The connecting assembly is connected to the corner post between second storage position and second unfolded position.The connecting assembly in second storage position is stored in receiving groove.The connecting assembly in second unfolded position is detachably connected to extension chassis.The transport frame of the embodiment of the utility model can ensure the stability of extension chassis while eliminating the restriction of connecting assembly on loading width, to maximize the space adaptability and operation safety of loaded goods.

Description

Technical Field

[0001] This utility model relates generally to the technical field of containers, and more specifically to a transport rack. Background Technology

[0002] In maritime and road transport, transport racks (or containerized transport containers) are widely used as the core loading carrier.

[0003] To meet the loading requirements of oversized vehicles and other cargo, related technologies typically employ extendable movable underframes at the ends of the main underframe of the transport rack, which are then fixedly connected to the corner posts at both ends of the main underframe via connectors. However, this structure has a significant technical drawback: the connectors, using a movable connection method, are located inside the corner posts, directly encroaching on the effective width space inside the transport rack. This design not only reduces the available loading width, limiting compatibility with wide-body vehicles and preventing the loading of some cargo due to exceeding width limits, but also increases the safety risk of cargo scraping against connectors and other structural components during loading and unloading. Especially under standard container ship transport conditions, the internal width of the transport rack directly affects the loading density per unit space and the transport economy; the critical space loss caused by the current connection method has become a major bottleneck restricting the improvement of transport efficiency.

[0004] Therefore, there is a need to provide a transport rack to at least partially solve the above problems. Utility Model Content

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

[0006] To at least partially solve the above problems, this utility model provides a transport frame, the transport frame comprising: Main chassis; An end frame is connected to the end of the main base frame along its length. The end frame includes a pair of corner posts, which are spaced apart and arranged opposite each other along the width direction of the main base frame. The corner posts form receiving grooves. An extension base frame, movably connected to the end of the main base frame along its length between a first stowed position and a first unfolded position, wherein the extension base frame in the first stowed position does not protrude from the main base frame along its length, and the extension base frame in the first unfolded position extends beyond the main base frame along its length; and A connecting component is connected to the corner post between a second storage position and a second unfolded position. The connecting component in the second storage position is stored in the receiving slot and does not protrude from the surface of the corner post facing the other corner post in the width direction. The connecting component in the second unfolded position is detachably connected to the extension base frame in the first unfolded position and does not protrude from the surface of the corner post facing the other corner post in the width direction.

[0007] Optionally, when the end frame is in use, the opening of the receiving slot faces outward along the length direction of the main base frame.

[0008] Optionally, the corner post includes a column body and a grooved member. The column body has a cavity inside and a first opening that communicates with the cavity. The grooved member is located in the cavity and fixed to the column body, forming the receiving groove. The opening of the receiving groove is aligned with the first opening.

[0009] Optionally, the grooved member includes a fixed grooved member and a hinged grooved member. The fixed grooved member has a fixed groove extending along the width direction and the fixed groove accommodates a fixed assembly. The hinged grooved member has a hinged groove extending along the width direction and the hinged groove accommodates a first hinged assembly. The column body has a second opening and / or a third opening on at least one side along the width direction. The second opening is arranged corresponding to and communicates with the fixing groove, and the third opening is arranged corresponding to and communicates with the hinge groove.

[0010] Optionally, the grooved member includes an intermediate grooved member located between the fixed grooved member and the hinged grooved member, the intermediate grooved member being connected to the fixed grooved member and the hinged grooved member, the intermediate grooved member having an intermediate groove extending along the extension direction of the corner post, the intermediate groove being adapted to accommodate the connecting assembly located between the hinged end and the movable end of the connecting assembly.

[0011] Optionally, the end frame includes a first hinge assembly and a fixing assembly, the first hinge assembly and the fixing assembly being disposed in the receiving groove, the first hinge assembly and the fixing assembly being spaced apart along the groove length direction of the receiving groove, the groove length direction of the receiving groove being consistent with the extension direction of the corner post; The connecting assembly has a hinged end and a movable end, the hinged end being pivotally connected to the first hinged assembly about a first axis, and the movable end being detachably connected to the fixed assembly when the connecting assembly is in the second retracted position.

[0012] Optionally, the first hinge assembly and the fixing assembly do not protrude from the outer surface of the corner post; and / or The receiving groove is provided with a limiting member, which forms a limiting groove. The opening direction of the limiting groove is consistent with the opening direction of the receiving groove. The limiting groove is adapted to accommodate the connecting component located in the second storage position; and / or The fixing component includes a fixed base and a movable pin. The fixed base is fixedly connected to the corner post, and the movable pin is detachably connected to the fixed base and the movable end of the connecting component.

[0013] Optionally, the extended base frame includes a frame body and a telescopic member, the telescopic member being movably connected to the frame body between a retracted position and an extended position, the telescopic member in the retracted position being spaced apart from the corner post along the width direction, and the telescopic member in the extended position protruding from the frame body along the width direction.

[0014] Optionally, the telescopic member includes a telescopic rod movably connected to the frame body along the width direction, and the telescopic rod is detachably connected to the connecting assembly; and / or The telescopic member further includes a locking plate fixed to the telescopic rod, the locking plate being selectively and detachably connected to either the frame body or the connecting assembly.

[0015] Optionally, the end frame is pivotally connected to the main base frame about a second axis parallel to the width direction between a folded position and an upright position. When the end frame is in the folded position, it is stacked on top of the main base frame; when the end frame is in the upright position, it is arranged in an upright posture, and the opening of the receiving slot faces outward along the length direction of the main base frame. The end frame is fixed to the main base frame in an upright position, and the opening of the receiving slot faces outwards from the main base frame along the length direction; and / or The connecting component located at the second storage position does not protrude from the outer surface of the corner post; and / or The main base frame is provided with a support base at its end, the support base being used to support the extended base frame located in the first unfolded position; or The main base frame has a support seat at its end, which supports the extended base frame in the first unfolded position. The support seat has a limiting surface on its outward-facing side along its length. The extended base frame includes a blocking member, which overlaps the limiting surface when the extended base frame is in the first unfolded position; and / or The connecting component includes a length adjustment member configured to be operable to change the length of the connecting component.

[0016] The beneficial effects of this utility model are: According to the present invention, when the extended base frame is in the first unfolded position, the connecting component is adjusted to the second unfolded position to connect with the extended base frame, thereby maintaining the extended base frame in the first unfolded position and adapting to the needs of loading goods. The connecting component in the second unfolded position does not protrude from the surface of the corner post facing the other corner post in the width direction, so the connecting component does not encroach on the width space between the two corner posts. This ensures the load-bearing stability of the extended base frame while eliminating the limitation of the connecting component on the loading width, maximizing the loading width of the goods and thus maximizing the spatial adaptability and operational safety of loading goods. By disconnecting the connecting component from the extended base frame and adjusting the connecting component from the second unfolded position to the second retracted position, the extended base frame can be adjusted from the first unfolded position to the first retracted position. Since the connecting component in the second retracted position is stored in the receiving slot, the connecting component does not encroach on the width space between the two corner posts. Therefore, the connecting component does not interfere with the extended base frame during its movement between the first unfolded position and the first retracted position, thus facilitating smooth position changes of the extended base frame. Attached Figure Description

[0017] The following drawings, which illustrate embodiments of the present invention, are incorporated herein as part of the present invention for understanding the invention. The drawings show embodiments of the present invention and their descriptions, serving to explain the principles of the present invention. In the drawings, Figure 1 This is a perspective view of a transport frame according to one embodiment of the present utility model, wherein the end frame is in an upright position, the extended base frame is in a first unfolded position, the connecting assembly is in a second unfolded position, and the telescopic member is in an extended position. Figure 2 for Figure 1 Another perspective view of the transport frame shown, in which the end frame is in the upright position, the extended base frame is in the first unfolded position, the connecting assembly is in the second unfolded position, and the telescopic component is in the retracted position; Figure 3 for Figure 1 Another perspective view of the transport frame shown, in which the end frame is in the upright position, the extended base frame is in the first unfolded position, and the telescopic component is in the extended position; Figure 4 for Figure 1 Another perspective view of the transport frame shown, in which the end frame is in the upright position, the extended base frame is in the first unfolded position, and the telescopic component is in the extended position; Figure 5 for Figure 1 A schematic diagram of the connection structure between the end frame and the connecting component, wherein the connecting component is located in the second unfolded position; Figure 6 for Figure 1 A schematic diagram of the connection structure between the corner post and the connecting component, wherein the connecting component is located in the second storage position; Figure 7 for Figure 1 A schematic diagram of the structure of the corner prism's main body; and Figure 8 This is a structural schematic diagram of a groove-shaped component according to one embodiment of the present invention.

[0018] Explanation of reference numerals in the attached figures: 100: Transport frame; 110: Main base frame 111: Support base; 111a: Limiting surface 112: Blocking component; 120: End frame 121: Doorway; 130: Corner post 130a: Receiving groove; 131: Column body 131a: Cavity; 131b: First opening 131c: Second opening; 131d: Third opening 131e: Wing plate; 131f: Web plate 132: Channel-shaped component; 133: Fixed channel-shaped component 133a: Fixing groove; 133b: First notch 134: Hinged slot; 134a: Hinged slot 134b: Second notch; 135: Intermediate groove component 135a: Intermediate groove; 136: Limiting component 136a: Limiting groove; 140: First hinge assembly 141: Hinge seat; 142: Hinge shaft 150: Fixing component; 151: Fixing base 151a: Second pin hole; 152: Movable pin 153: Stopping component; 154: Anti-falling component 160: Extended base frame; 161: Frame body 161a: Second locking hole; 161b: Guide tube 162: Telescopic component; 163: Telescopic pole 163a: Connecting part; 164: Locking plate 164a: First locking hole; 170: Connecting component 171: Hinged end; 172: Movable end 173: Length adjustment component; 173a: First rod section 173b: Middle section; 173c: Second section 174: Hinge rod component; 175: Movable rod component 175a: First pin hole; 175b: Connecting hole 175c: Third locking hole; 180: Second hinge assembly AX1: First axis; AX2: Second axis D1: Length direction; D2: Width direction D3: Vertical direction Detailed Implementation

[0019] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that embodiments of the present invention 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 in order to avoid confusion with embodiments of the present invention.

[0020] To fully understand the embodiments of this utility model, a detailed structure will be presented in the following description. Obviously, the implementation of the embodiments of this utility model is not limited to the specific details familiar to those skilled in the art.

[0021] It should be understood that the terminology used herein is intended only to describe particular embodiments and is not intended to limit the scope of the invention. The singular forms “a,” “an,” and “the” are also intended to include the plural forms unless the context clearly indicates otherwise. When the terms “comprising” and / or “including” are used in this specification, they indicate the presence of the stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or combinations thereof.

[0022] The ordinal numbers such as "first" and "second" used in this utility model are merely identifiers and do not have any other meaning, such as a specific order. Furthermore, 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." It should be noted that the terms "upper," "lower," "front," "rear," "left," "right," "inner," "outer," and similar expressions used in this utility model are for illustrative purposes only and are not intended to be limiting.

[0023] The terms “center,” “parallel,” “perpendicular,” “aligned,” and “symmetrical” used in this invention do not have to be precise, but can include typical engineering tolerances.

[0024] The specific embodiments of the present invention will be described in more detail below with reference to the accompanying drawings, which show representative embodiments of the present invention and are not intended to limit the present invention.

[0025] In existing technologies, to accommodate the loading requirements of extra-long vehicles and other cargo, an extendable movable base frame is typically added to the end of the main body of the transport frame, and then fixedly connected to the corner posts at both ends of the main base frame via rigid connectors. However, this design has a significant drawback: the connectors are movably connected to the inside of the corner posts, directly encroaching on the effective internal width space of the transport frame. This not only limits the upper limit of the width of the cargo that can be loaded, making some wider cargo incompatible, but also may cause the risk of cargo scratches during loading and unloading. Especially for standard container ship transportation scenarios, the utilization rate of the transport frame's internal width directly affects the economy of a single shipment. The critical space loss caused by the existing connection method has become a major bottleneck restricting the improvement of transportation efficiency, and there is an urgent need to maximize the utilization of internal space through structural optimization.

[0026] Therefore, a connection structure that does not encroach on the effective width space is required to connect the movable base frame and the main base frame. This will ensure the load-bearing stability of the extended base frame while eliminating the limitation on the loading width, thereby maximizing the spatial adaptability and operational safety of the transport frame.

[0027] To at least partially solve the aforementioned technical problems or achieve the corresponding technical objectives, this utility model provides a transport frame. This transport frame can be referred to as a platform-type vehicle transport box or vehicle transport rack. This transport frame can be used not only for vehicle transport but also for transporting other goods such as large items and long items. See below. Figures 1 to 8 The examples shown illustrate the transport rack according to the present invention in detail.

[0028] See Figures 1 to 6 According to an embodiment of the present invention, the transport frame 100 includes a main base frame 110, an end frame 120, an extension base frame 160, and a connecting assembly 170.

[0029] End frame 120 is connected to the end of main frame 110 along the length direction D1. End frame 120 includes a pair of corner posts 130. The pair of corner posts 130 are spaced apart and arranged opposite each other along the width direction D2 of main frame 110. Corner posts 130 form receiving grooves 130a. A doorway 121 suitable for the passage or storage of goods is formed between the pair of corner posts 130.

[0030] The extension base 160 is movably connected to the end of the main base 110 along the length direction D1 between the first stowed position and the first unfolded position. In the first stowed position, the extension base 160 does not protrude beyond the main base 110 along the length direction D1. In the first unfolded position, the extension base 160 extends beyond the main base 110 along the length direction D1. The extension base 160 and the main base 110 are arranged sequentially along the length direction D1. Here, "the extension base 160 and the main base 110 are arranged sequentially along the length direction D1" can be understood as the bearing surface of the extension base 160 being flush with or substantially flush with the bearing surface of the main base 110.

[0031] The connecting assembly 170 is convertibly connected to the corner post 130 between a second retracted position and a second extended position. In the second retracted position, the connecting assembly 170 is housed in a receiving groove 130a such that it does not protrude along the width direction D2 from the surface of the corner post 130 facing the doorway 121. In the second extended position, the connecting assembly 170 is detachably connected to the extension base 160 and does not protrude along the width direction D2 from the surface of the corner post 130 facing the doorway 121, allowing the extension base 160 to remain in the first extended position.

[0032] When the transport frame 100 is used for loading and transporting goods, the extension base frame 160 is first moved from the first retracted position to the first deployed position, and then the connecting assembly 170 is moved from the second retracted position to the second deployed position. The connecting assembly 170 is then connected to the extension base frame 160 so that the extension base frame 160 remains in the first deployed position. After that, goods can be loaded into the upper space of the extension base frame 160 and the main base frame 110.

[0033] When the transport rack 100 is in the return or idle state, firstly, the connecting component 170 is detached from the extension base 160, then the connecting component 170 is moved from the second unfolded position to the second storage position, and then the extension base 160 is moved from the first unfolded position to the first storage position.

[0034] According to an embodiment of the present invention, the transport rack 100, when the extended base frame 160 is in the first unfolded position, maintains the extended base frame 160 in the first unfolded position by adjusting the connecting component 170 to the second unfolded position to connect with the extended base frame 160, thereby adapting to the needs of loading goods. The connecting component 170 in the second unfolded position does not protrude from the surface of the corner posts 130 facing the doorway 121 along the width direction D2, so the connecting component 170 does not encroach on the width space between the two corner posts 130. This ensures the load-bearing stability of the extended base frame 160 while eliminating the limitation of the connecting component 170 on the loading width, maximizing the loading width of the goods and thus maximizing the spatial adaptability and operational safety of loading goods. By disconnecting the connecting component 170 from the extended base frame 160 and adjusting the connecting component 170 from the second unfolded position to the second retracted position, the extended base frame 160 can be adjusted from the first unfolded position to the first retracted position. Because the connecting component 170 in the second storage position is housed in the receiving groove 130a, the connecting component 170 does not protrude from the surface of the corner post 130 facing the doorway 121 along the width direction D2. Therefore, the connecting component 170 does not encroach on the width space between the two corner posts 130. As a result, the connecting component 170 does not interfere with the extension base 160 during its movement between the first unfolded position and the first storage position, which facilitates a smooth transition of the extension base 160's position. By providing the receiving groove 130a in the corner post 130 to accommodate the connecting component 170 in the second storage position, the space occupied by the connecting component 170 in the second storage position on the external space of the end frame 120 can be reduced.

[0035] With end frame 120 in use, the opening of receiving slot 130a faces outward along the length direction D1 towards the main base frame 110. This helps ensure that the connecting assembly 170 housed in receiving slot 130a does not encroach on the width space between the two corner posts 130.

[0036] In some embodiments, the connecting component 170 is movably connected to the corner post 130. Preferably, in this application, the connecting component 170 is pivotally connected to the corner post 130.

[0037] In some other embodiments, the connecting components are detachably connected to the corner posts.

[0038] Optionally, the connecting component 170 in the second storage position does not protrude from the outer surface of the corner post 130. In other words, the connecting component 170 in the second storage position is completely located within the receiving groove 130a. This arrangement helps to further reduce the space occupied by the connecting component 170 on the external space of the corner post 130, and prevents or avoids the connecting component 170 from protruding from the corner piece.

[0039] See Figure 1 and Figure 2 In some embodiments, the end frame 120 is pivotally connected to the main base frame 110 about a second axis AX2 between a folded position and an upright position. The second axis AX2 is parallel to the width direction D2. When the end frame 120 is in the folded position, it is stacked on top of the main base frame 110. When the end frame 120 is in the upright position, it is arranged in an upright posture, and the opening of the receiving slot 130a faces the outside of the main base frame 110 along the length direction D1. By pivoting the end frame 120 to the folded position, it is convenient to stack the transport rack 100 in a return or idle state, thereby reducing return transport costs and space occupation. The end frame 120 being arranged in an upright posture can be understood as the end frame 120 being parallel to the vertical direction D3 of the main base frame 110, or the angle between the end frame 120 and the main base frame 110 being slightly off by 90° ±5 to 10°. Any two of the vertical direction D3, the length direction D1, and the width direction D2 are perpendicular. By converting the end frame 120 to an upright position, the doorway 121 extends through the end frame 120 along the length direction D1, allowing goods to change position between the main base frame 110 and the extension base frame 160 through the doorway 121. By setting the opening of the receiving slot 130a to face outwards from the main base frame 110 along the length direction D1, the connecting assembly 170 can be operated more easily to change its position compared to setting the opening of the receiving slot 130a to face outwards from the center of the main base frame 110 along the length direction D1. By setting the opening of the receiving slot 130a to face outwards from the main base frame 110 along the length direction D1, compared to setting the opening of the receiving slot 130a to face outwards from the main base frame 110 along the width direction D2, the space occupied by the connecting assembly 170 in the external space of the corner post 130 along the width direction D2 can be reduced, thereby reducing the width dimension of the transport rack 100.

[0040] In other embodiments, the end frame 120 is fixed to the main base frame 110 in an upright position. The opening of the receiving groove 130a faces outwards from the main base frame 110 along the length direction D1. The upright end frame 120 is in the same or similar position as the end frame 120 in the upright position in the above embodiments; for the sake of brevity, the upright position will not be described again here. Here, the opening of the receiving groove 130a is set to face outwards from the main base frame 110 along the length direction D1, the advantages of which are the same or similar to those described in the above embodiments; for the sake of brevity, this will also not be described again here.

[0041] See Figure 6 and Figure 8In some embodiments, the end frame 120 includes a first hinge assembly 140 and a fixing assembly 150. The first hinge assembly 140 and the fixing assembly 150 are disposed in a receiving groove 130a. The first hinge assembly 140 and the fixing assembly 150 are spaced apart along the length direction of the receiving groove 130a. The length direction of the receiving groove 130a is consistent with the extension direction of the corner post 130. The connecting assembly 170 has a hinge end 171 and a movable end 172. The hinge end 171 is pivotally connected to the first hinge assembly 140 about a first axis AX1. The movable end 172 is detachably connected to the fixing assembly 150 when the connecting assembly 170 is in a second retracted position. By connecting the first hinge assembly 140 to the hinge end 171 of the connecting assembly 170, the connecting assembly 170 can be pivotally connected relative to the corner post 130. By providing the fixing component 150, the connecting component 170 can be connected when it is in the second storage position, so as to restrict or maintain the connecting component 170 in the second storage position. When it is necessary to change the connecting component 170 to the second unfolded position, the connecting component 170 can be moved to the second unfolded position by detaching the fixing component 150 from the movable end 172 of the connecting component 170.

[0042] See Figure 1 , Figure 2 as well as Figure 5 Optionally, the first hinge assembly 140 and the fixing assembly 150 do not protrude from the outer surface of the corner post 130. This reduces the space occupied by the first hinge assembly 140 and the fixing assembly 150 on the external space of the corner post 130.

[0043] See Figure 8 Optionally, the first hinge assembly 140 includes a hinge base 141 and a hinge shaft 142. The hinge base 141 is fixed to the corner post 130. The hinge end 171 of the connecting assembly 170 is rotatably connected to the hinge base 141 via the hinge shaft 142. The axis of the hinge shaft 142 is the first axis AX1 or coincides with the first axis AX1.

[0044] See Figure 6 and Figure 8In some further embodiments, the movable end 172 of the connecting assembly 170 has a first pin hole 175a. The fixing assembly 150 includes a fixing seat 151, a movable pin 152, and a stop 153. The fixing seat 151 is fixedly connected to the corner post 130. The fixing seat 151 has a second pin hole 151a. The movable pin 152 includes an insertion portion and a limiting portion arranged sequentially along the extending direction of the movable pin 152. The insertion portion is adapted to pass through the first pin hole 175a and the second pin hole 151a. The insertion portion has a stop hole. The stop hole is spaced apart from the limiting portion along the extending direction of the movable pin 152. The stop 153 is adapted to be detachably connected to the stop hole. When the connecting assembly 170 is in the second retracted position, the insertion portion of the movable pin 152 passes through the first pin hole 175a and the second pin hole 151a to prevent the connecting assembly 170 from disengaging from the fixing seat 151. The stop 153 connected to the stop hole prevents the movable pin 152 from disengaging from the fixed seat 151.

[0045] The method for connecting the connecting component 170 to the fixing component 150 is as follows: First, the connecting component 170 is switched to the second storage position, and the holes of the first pin hole 175a and the second pin hole 151a are aligned. Then, the insertion part of the movable pin 152 is inserted into the first pin hole 175a and the second pin hole 151a. At this time, the connecting component 170 is prevented from disengaging from the fixing seat 151. Then, the stop member 153 is inserted into the stop hole, which can prevent the movable pin 152 from disengaging from the fixing seat 151, thereby making the connecting component 170 stably held in the second storage position.

[0046] The procedure for disassembling the connecting assembly 170 from the fixing assembly 150 is as follows: First, remove the stop 153 from the stop hole, and then withdraw the movable pin 152 from the first pin hole 175a and the second pin hole 151a, thereby completing the disassembly of the connecting assembly 170 from the fixing assembly 150. At this time, the connecting assembly 170 can be operated to change its position.

[0047] Optionally, the mounting base 151 includes a pair of opposing lugs. The space between the pair of lugs is adapted to accommodate the telescopic member 162. The lugs have a second pin hole 151a.

[0048] Optionally, the stop 153 can be a resilient locking pin. Preferably, a double R-pin is used in this technical solution.

[0049] See Figure 8 In some further embodiments, the fixing assembly 150 also includes an anti-detachment member 154. The anti-detachment member 154 is connected to the corner post 130. The anti-detachment member 154 is also connected to the movable pin 152 and / or the stop 153. By providing the anti-detachment member 154, the movable pin 152 and the stop 153 can be prevented from completely detaching from or being lost from the corner post 130.

[0050] Optionally, the anti-falling component 154 includes a flexible rope. The flexible rope is connected to the movable pin 152 and the stop 153.

[0051] In the illustrated example, connecting rings are provided between the flexible rope and the movable pin 152, and between the flexible rope and the stop 153.

[0052] See Figure 8 In some further embodiments, a limiting member 136 is provided within the receiving groove 130a. The limiting member 136 is located between the first hinge assembly 140 and the fixing assembly 150. The limiting member 136 is spaced apart from both the first hinge assembly 140 and the fixing assembly 150. The limiting member 136 forms a limiting groove 136a. The opening direction of the limiting groove 136a is consistent with the opening direction of the receiving groove 130a. The limiting groove 136a is adapted to accommodate the connecting assembly 170 located in the second storage position to prevent the connecting assembly 170 from wobbling along the width direction D2. The limiting member 136 is used to limit the connecting assembly 170 in the width direction D2 to prevent wobbling caused by excessive gap between the limiting groove 136a and the connecting assembly 170.

[0053] Optionally, the opening size of the limiting member 136 is adapted to the external dimensions of the portion of the connecting assembly 170 corresponding to the limiting member 136.

[0054] Optionally, a damping layer made of a soft, elastic material may be provided on the inner side of the limiting member 136. The damping layer is adapted to fit tightly against the connecting assembly 170, thereby not only preventing the connecting assembly 170 from shaking, but also helping to reduce noise and protect the connecting assembly 170.

[0055] Optionally, the limiting member 136 is a U-shaped part formed by bending a metal sheet.

[0056] Optionally, there may be multiple limiting members 136. The multiple limiting members 136 are arranged at intervals along the extension direction of the corner post 130.

[0057] See Figures 5 to 8 In some embodiments, the corner post 130 includes a post body 131 and a channel member 132. A cavity 131a is formed inside the post body 131. The post body 131 has a first opening 131b. The first opening 131b communicates with the cavity 131a. The channel member 132 is located in the cavity 131a and fixed to the post body 131. The channel member 132 forms a receiving groove 130a. The opening of the receiving groove 130a is aligned with the first opening 131b. By splicing the main body and the channel member 132 to form the receiving groove 130a, compared with a one-piece structure, it is easier to reduce processing difficulty and improve manufacturing flexibility.

[0058] Of course, in other embodiments, a portion of the corner post 130 can be manufactured in one piece, and the remaining portion can be assembled into the one-piece part by welding or other splicing methods.

[0059] See Figure 7 Optionally, the column body 131 includes a pair of flanges 131e and a pair of webs 131f. The pair of flanges 131e are spaced apart. The pair of webs 131f are spaced apart along the width direction D2. The flanges 131e and webs 131f are arranged intersectingly. The flanges 131e and webs 131f are connected. The flanges 131e facing outward are adapted to have a first opening 131b. The channel member 132 is connected to the flange 131e with the first opening 131b. The first hinge assembly 140, the fixing assembly 150, and the limiting member 136 are all disposed on the receiving groove 130a. This design ensures that the connecting assembly 170 located in the second storage position is completely hidden in the receiving groove 130a and does not protrude from the corner column 130.

[0060] See Figure 8 In some embodiments, the grooved member 132 includes a fixed groove 133 and a hinged groove 134. The fixed groove 133 has a fixed groove 133a extending along the width direction D2. The fixed groove 133a accommodates the fixing assembly 150. The hinged groove 134 has a hinged groove 134a extending along the width direction D2. The hinged groove 134a accommodates the first hinged assembly 140. The column body 131 has a second opening 131c and / or a third opening 131d on at least one side along the width direction D2. The second opening 131c is arranged corresponding to and communicates with the fixed groove 133a. The third opening 131d is arranged corresponding to and communicates with the hinged groove 134a. By providing the second opening 131c, it is convenient to operate the fixing assembly 150 from the outside of the corner post 130 in the width direction D2, such as the disassembly and assembly of the fixing assembly 150, or for some maintenance operations. By providing a third opening 131d, it is convenient to disassemble and maintain the first hinge assembly 140 from the outside of the width direction D2 of the corner post 130.

[0061] Optionally, both the fixing slot 133 and the hinge slot 134 are U-shaped. The fixing slot 133 has a first notch 133b adapted to receive the connecting assembly 170. The hinge slot 134 has a second notch 134b adapted to receive the connecting assembly 170. In the extending direction of the corner post 130, the first notch 133b and the second notch 134b are located on the side of the fixing slot 133 and the hinge slot 134 facing each other.

[0062] Optionally, the column body 131 includes a pair of second openings 131c and a pair of third openings 131d. The pair of second openings 131c are located on both sides of the column body 131 along the width direction D2. The pair of third openings 131d are located on both sides of the column body 131 along the width direction D2.

[0063] Continue reading Figure 8 Furthermore, the channel member 132 also includes an intermediate channel member 135. The intermediate channel member 135 is located between the fixed channel member 133 and the hinged channel member 134. The intermediate channel member 135 is connected to the fixed channel member 133 and the hinged channel member 134. The intermediate channel member 135 has an intermediate channel 135a extending along the extension direction of the corner post 130. The intermediate channel 135a is adapted to accommodate a connecting assembly 170 located between the hinged end 171 and the movable end 172. The intermediate channel 135a communicates with the fixed channel 133a and the hinged channel 134a. For example, the intermediate channel 135a communicates with the fixed channel 133a and the hinged channel 134a through the first notch 133b and the second notch 134b described above.

[0064] Optionally, the intermediate groove 135 is a U-shaped part.

[0065] See Figures 1 to 4 In some embodiments, the extension base 160 includes a frame body 161 and a telescopic member 162. The telescopic member 162 is movably connected to the frame body 161 between a retracted position and an extended position. In the retracted position, the telescopic member 162 is spaced apart from the corner post 130 along the width direction D2 to allow the extension base 160 to pass through the doorway 121. In the extended position, the telescopic member 162 protrudes from the frame body 161 along the width direction D2 to connect to the movable end 172 of the connecting assembly 170 in the second extended position. By providing the movable telescopic member 162, the connection requirements with the connecting assembly 170 in the second extended position are accommodated, and the requirement to avoid interference with the end frame 120 during the transition of the extension base 160 between the first extended position and the first retracted position is met.

[0066] Continue reading Figures 1 to 4 Furthermore, the movable end 172 of the connecting assembly 170 has a connecting hole 175b. The telescopic member 162 includes a telescopic rod 163. The telescopic rod 163 is movably connected to the frame body 161 along the width direction D2. The telescopic rod 163 includes a connecting portion 163a adapted to connect to the connecting hole 175b. When the connecting portion 163a is connected to the connecting hole 175b of the connecting assembly 170, the extension base 160 can be held in the first extended position. When the connecting portion 163a is disengaged from the connecting hole 175b of the connecting assembly 170, the connection between the connecting assembly 170 and the extension base 160 is released, thereby allowing the positions of the extension base 160 and the connecting assembly 170 to be switched respectively.

[0067] See Figure 3 and Figure 4 Optionally, the frame body 161 includes a guide tube 161b. The guide tube 161b extends along the width direction D2. The telescopic rod 163 is movably connected to the guide tube 161b along the width direction D2.

[0068] See Figures 1 to 4 Furthermore, the telescopic member 162 also includes a locking plate 164. The locking plate 164 is fixed to the telescopic rod 163 at a position adjacent to the connecting portion 163a. ​​The locking plate 164 has a first locking hole 164a. The frame body 161 has a second locking hole 161a. The movable end 172 of the connecting assembly 170 also has a third locking hole 175c. The transport frame 100 also includes fasteners. The fasteners are adapted to be detachably connected to the first locking hole 164a and the second locking hole 161a to secure the telescopic member 162 to the frame body 161. The fasteners are also adapted to be detachably connected to the first locking hole 164a and the third locking hole 175c to secure the telescopic member 162 to the connecting assembly 170. By connecting the locking plate 164 to the frame body 161 via fasteners, it is possible to prevent the telescopic rod 163 from moving or wobbling freely when the extension base 160 is not connected to the connecting assembly 170, thereby preventing the telescopic rod 163 from interfering with other structures. By connecting the locking plate 164 to the connecting assembly 170 with fasteners, the strength of the connection structure between the connecting assembly 170 and the telescopic rod 163 can be strengthened, increasing the structural stability.

[0069] Optionally, the fasteners are bolts, screws, etc.

[0070] See Figure 4 In some embodiments, the extension base 160 is pivotally connected to the main base 110 about an axis parallel to the width direction D2. The main base 110 has a support 111 at one end. The support 111 supports the extension base 160 in its first extended position. The support 111 provides support and limits the extension base 160, preventing it from continuing to tilt downwards, thus ensuring the extension base 160 is securely held in the first extended position.

[0071] Furthermore, a limiting surface 111a is formed on the outward side of the support base 111 along the length direction D1. The extension base 160 includes a blocking member 112, which overlaps with the limiting surface 111a when the extension base 160 is in the first extended position. Through the cooperation between the blocking member 112 and the limiting surface 111a, the stability of the connection structure between the extension base 160 and the main base 110 can be further enhanced, thereby improving the load-bearing capacity of the extension base 160.

[0072] See Figures 1 to 4Optionally, the extension base 160 is hinged to the main base 110 via a second hinge assembly 180. The second hinge assembly 180 is located on the upper part of the main base 110. The construction of the second hinge assembly 180 must satisfy the following condition: When the extension base 160 is in the first extended position, the extension base 160 is completely outside the main base 110 along the length direction D1. This maximizes the load-bearing space of the transport frame 100 along the length direction D1.

[0073] The second hinge assembly 180 described above can be implemented using a hinge structure in the prior art, or it can be implemented with reference to the example shown in the figure, and there is no limitation here.

[0074] In some other embodiments, the extension base 160 is slidably connected to the main base 110 along the length direction D1.

[0075] See Figure 1 and Figure 6 In some embodiments, the connecting assembly 170 includes a length adjusting member 173. The length adjusting member 173 is configured to be operable to change the length of the connecting assembly 170. By providing the length adjusting member 173, compared to setting the connecting assembly 170 to a fixed length, it is possible to solve positioning problems such as the inaccurate alignment between the connecting hole 175b of the connecting assembly 170 and the connecting portion 163a of the telescopic member 162 caused by factors such as machining errors and assembly errors. This not only achieves the purpose of accurate positioning but also helps to reduce the dependence on and requirements for machining accuracy.

[0076] See Figure 1 Optionally, the length adjusting member 173 includes a first rod portion 173a, an intermediate rod portion 173b, and a second rod portion 173c arranged sequentially. One end of the first rod portion 173a and the intermediate rod portion 173b are connected to each other by nesting and threaded connection. The ends of the second rod portion 173c and the intermediate rod portion 173b opposite to the first rod portion 173a are connected to each other by nesting and threaded connection. The threaded connection between the first rod portion 173a and the intermediate rod portion 173b, and the threaded connection between the second rod portion 173c and the intermediate rod portion 173b, satisfy the following condition: when the first rod portion 173a and the second rod portion 173c are restricted from rotation, the overall length of the length adjusting member 173 can be changed by rotating the intermediate rod portion 173b. For example, the intermediate rod portion 173b is threaded to the first rod portion 173a and the second rod portion 173c in a forward and reverse thread configuration. The screw connection in the form of positive and negative threads here can be understood as follows: the two ends of the middle rod 173b are provided with external thread sections or internal thread sections with opposite thread directions, and are screwed to the first rod 173a and the second rod 173c respectively through the external thread sections or internal thread sections with opposite thread directions.

[0077] See Figure 1 and Figure 6 Optionally, the connecting assembly 170 is integrally rod-shaped. The connecting assembly 170 also includes a hinged rod member 174 and a movable rod member 175. The hinged rod member 174 and the movable rod member 175 are connected to both ends of the length adjusting member 173. The end of the hinged rod member 174 facing away from the length adjusting member 173 is the hinged end 171. The end of the movable rod member 175 facing away from the length adjusting member 173 is the movable end 172.

[0078] Taking the embodiment where the end frame 120 can pivot relative to the main base frame 110 in both the upright and folded positions as an example, the specific operation process of the transport frame 100 of this utility model during use is as follows: (1) In the initial state, the end frame 120 is in the folded position, the extension base frame 160 is in the first storage position, the connecting component 170 is in the second storage position and is hidden in the receiving groove 130a of the corner post 130, and the telescopic component 162 is in the retracted position.

[0079] (2) Move the end frame 120 to the upright position and move the extension base frame 160 to the second unfolded position.

[0080] (3) Pull out the stop 153 and movable pin 152 of the fixed component 150, and flip down the connecting component 170 hidden in the corner post 130.

[0081] (4) Pull out the telescopic member 162 in the retracted position and insert the connecting part 163a of the telescopic rod 163 into the connecting hole 175b.

[0082] (5) Tighten the locking plate 164 and the connecting assembly 170 with bolts.

[0083] (6) Repeat the action until the connecting components 170 are installed on both sides of the extended base frame 160 along the width direction D2, then the extension work is completed.

[0084] According to the transport frame 100 of this utility model, the connecting component 170 used to connect the corner post 130 and the extension base frame 160 does not affect the inner width of the end frame 120, thus reducing the impact on the internal space of the transport frame. The extension base frame 160 has a telescopic component 162, which, while achieving the technical objective of connecting the extension base frame 160 and the connecting component 170, can also ensure that the extension base frame 160 does not interfere with the end frame 120 during movement by retracting to the retracted position.

[0085] 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. The terminology used herein is for descriptive purposes only and is not intended to limit the scope of the invention. Terms such as “set” 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 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.

[0086] This utility model 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 utility model 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 utility model, and all such variations and modifications fall within the scope of protection claimed by this utility model.

Claims

1. A transport rack, characterized in that, The transport rack includes: Main chassis; An end frame is connected to the end of the main base frame along its length. The end frame includes a pair of corner posts, which are spaced apart and arranged opposite each other along the width direction of the main base frame. The corner posts form receiving grooves. An extension base frame, movably connected to the end of the main base frame along its length between a first stowed position and a first unfolded position, wherein the extension base frame in the first stowed position does not protrude from the main base frame along its length, and the extension base frame in the first unfolded position extends beyond the main base frame along its length; and A connecting component is connected to the corner post between a second storage position and a second unfolded position. The connecting component in the second storage position is stored in the receiving slot and does not protrude from the surface of the corner post facing the other corner post in the width direction. The connecting component in the second unfolded position is detachably connected to the extension base frame in the first unfolded position and does not protrude from the surface of the corner post facing the other corner post in the width direction.

2. The transport frame according to claim 1, characterized in that, When the end frame is in use, the opening of the receiving slot faces outward along the length direction of the main base frame.

3. The transport frame according to claim 1, characterized in that, The corner post includes a column body and a grooved component. The column body has a cavity inside and a first opening that communicates with the cavity. The grooved component is located in the cavity and fixed to the column body. The grooved component forms the receiving groove, and the opening of the receiving groove is aligned with the first opening.

4. The transport frame according to claim 3, characterized in that, The grooved component includes a fixed grooved component and a hinged grooved component. The fixed grooved component has a fixed groove extending along the width direction and the fixed groove accommodates a fixed assembly. The hinged grooved component has a hinged groove extending along the width direction and the hinged groove accommodates a first hinged assembly. The column body has a second opening and / or a third opening on at least one side along the width direction. The second opening is arranged corresponding to and communicates with the fixing groove, and the third opening is arranged corresponding to and communicates with the hinge groove.

5. The transport frame according to claim 4, characterized in that, The grooved component includes an intermediate grooved member located between the fixed grooved member and the hinged grooved member. The intermediate grooved member is connected to the fixed grooved member and the hinged grooved member. The intermediate grooved member has an intermediate groove extending along the extension direction of the corner post. The intermediate groove is adapted to accommodate the connecting component located between the hinged end and the movable end of the connecting component.

6. The transport frame according to claim 1, characterized in that, The end frame includes a first hinge component and a fixing component, the first hinge component and the fixing component are disposed in the receiving groove, the first hinge component and the fixing component are spaced apart along the groove length direction of the receiving groove, and the groove length direction of the receiving groove is consistent with the extension direction of the corner post. The connecting assembly has a hinged end and a movable end, the hinged end being pivotally connected to the first hinged assembly about a first axis, and the movable end being detachably connected to the fixed assembly when the connecting assembly is in the second retracted position.

7. The transport frame according to claim 6, characterized in that, The first hinge assembly and the fixed assembly do not protrude from the outer surface of the corner post; and / or The receiving groove is provided with a limiting member, which forms a limiting groove. The opening direction of the limiting groove is consistent with the opening direction of the receiving groove. The limiting groove is adapted to accommodate the connecting component located in the second storage position; and / or The fixing component includes a fixed base and a movable pin. The fixed base is fixedly connected to the corner post, and the movable pin is detachably connected to the fixed base and the movable end of the connecting component.

8. The transport frame according to claim 1, characterized in that, The extended base frame includes a frame body and a telescopic member. The telescopic member is movably connected to the frame body between a retracted position and an extended position. In the retracted position, the telescopic member is spaced apart from the corner post along the width direction, and in the extended position, the telescopic member protrudes from the frame body along the width direction.

9. The transport frame according to claim 8, characterized in that, The telescopic member includes a telescopic rod, which is movably connected to the frame body along the width direction and detachably connected to the connecting assembly; and / or The telescopic member further includes a locking plate fixed to the telescopic rod, the locking plate being selectively and detachably connected to either the frame body or the connecting assembly.

10. The transport rack according to any one of claims 2 to 7, characterized in that, The end frame is pivotally connected to the main base frame between a folded position and an upright position about a second axis parallel to the width direction. When the end frame is in the folded position, it is stacked on top of the main base frame. When the end frame is in the upright position, it is arranged in an upright posture, and the opening of the receiving groove faces the outside of the main base frame along the length direction. or The end frame is fixed to the main base frame in an upright position, and the opening of the receiving slot faces outwards from the main base frame along the length direction; and / or The connecting component located at the second storage position does not protrude from the outer surface of the corner post; and / or The main base frame is provided with a support base at its end, the support base being used to support the extended base frame located in the first unfolded position; or The main base frame has a support seat at its end, which supports the extended base frame in the first unfolded position. The support seat has a limiting surface on its outward-facing side along its length. The extended base frame includes a blocking member, which overlaps the limiting surface when the extended base frame is in the first unfolded position; and / or The connecting component includes a length adjustment member configured to be operable to change the length of the connecting component.

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