transport vehicle

Abstract

The application relates to a transport vehicle. The transport vehicle comprises a bearing seat for bearing products and a main positioning frame. The main positioning frame comprises a positioning unit, a locking unit and two supporting units. The two supporting units are arranged on the bearing seat at intervals. The two ends of the positioning unit are arranged on the different supporting units respectively. The locking unit is arranged on the supporting unit. When the locking unit is locked, the positioning unit is fixedly connected with the supporting unit, and the positioning unit is matched with a positioning hole of the product. When the locking unit is unlocked, the positioning unit can slide relative to the supporting unit to make the positioning unit separate from the positioning hole. Therefore, only the locking unit needs to be unlocked, the positioning unit can slide relative to the supporting unit to make the positioning unit separate from the positioning hole, and the positioning effect of the positioning unit on the product is released. In this way, a plurality of parts do not need to be disassembled, the working efficiency of the transport vehicle for releasing the positioning is improved, and finally the operation convenience of the transport vehicle is improved.

Description

Technical Field

[0001] This application relates to the field of display screen technology, and in particular to a transport vehicle. Background Technology

[0002] Transport vehicles can be used to transport products such as LED displays, including stadium screens. When an LED display is placed on a transport vehicle, the vehicle needs to position it to prevent damage caused by shaking during transport. This improves the safety and reliability of LED display transportation. With traditional transport vehicles, unloading the LED display requires first releasing the vehicle from its positioning, a process that is typically complex. Utility Model Content

[0003] One of the technical problems addressed by this application is how to improve the ease of operation of transport vehicles.

[0004] A transport vehicle, comprising:

[0005] A support base for supporting the product; and

[0006] The main positioning frame includes a positioning unit, a locking unit, and two support units. The two support units are spaced apart on the bearing seat. The two ends of the positioning unit are respectively disposed on different support units. The locking unit is disposed on the support unit.

[0007] When the locking unit is locked, the positioning unit is fixedly connected to the support unit, and the positioning unit cooperates with the positioning hole of the product; when the locking unit is unlocked, the positioning unit can slide relative to the support unit to disengage the positioning unit from the positioning hole.

[0008] In one embodiment, the sliding direction of the positioning unit relative to the support unit is perpendicular to the spacing direction of the two support units.

[0009] In one embodiment, the positioning unit includes a movable rod and a plurality of main positioning components. The movable rod is disposed on the support unit, and the plurality of main positioning components are spaced apart on the movable rod. The main positioning components are used to cooperate with the positioning holes.

[0010] In one embodiment, the locking unit includes a main body and a locking rod. The positioning unit has a locking hole. The main body is fixedly mounted on the support unit. The locking rod is movably connected to the main body and has a locked position and an unlocked position relative to the main body. In the locked position, the locking rod engages with the locking hole. In the unlocked position, the locking rod disengages from the locking hole.

[0011] In one embodiment, the locking rod slides through the main body and is able to rotate relative to the main body, and the main body has a locking groove; in the locked position, the locking rod engages with the locking groove, and in the unlocked position, the locking rod disengages from the locking groove.

[0012] In one embodiment, the support unit includes a main longitudinal beam and a mounting component. The main longitudinal beam is connected to the bearing seat, the mounting component is fixedly connected to the main longitudinal beam, and the locking unit is disposed on the mounting component.

[0013] In one embodiment, the mounting component includes a fixing part, a connecting part, and a mounting part. The number of fixing parts includes two, and the fixing parts are fixedly connected to the main longitudinal beam. The connecting part protrudes from the fixing part, and the locking unit is disposed on the connecting part. The two ends of the mounting part are respectively connected to the two connecting parts, and there is a gap between the mounting part and the main longitudinal beam. The mounting part has a mounting hole communicating with the gap, and the positioning unit passes through the mounting hole and the gap.

[0014] In one embodiment, the positioning unit includes a movable rod passing through the mounting hole. Both the movable rod and the mounting hole have rectangular cross-sections. In the extending direction of the main longitudinal beam, the movable rod and the mounting hole are equal in size. In the sliding direction of the movable rod, the mounting hole is larger than the movable rod.

[0015] In one embodiment, the support unit is detachably connected to the carrier.

[0016] In one embodiment, the main positioning frame further includes a main crossbeam connected between the two support units.

[0017] One technical advantage of one embodiment of this application is that, when the locking unit is locked, the positioning unit and the support unit are fixedly connected, and the positioning unit cooperates with the positioning hole of the product; when the locking unit is unlocked, the positioning unit can slide relative to the support unit to disengage from the positioning hole. Therefore, only the locking unit needs to be unlocked to allow the positioning unit to slide relative to the support unit to disengage from the positioning hole, thereby releasing the positioning effect of the positioning unit on the product. This eliminates the need to disassemble multiple components, thereby improving the efficiency of the transport vehicle in releasing the positioning and ultimately enhancing the ease of operation of the transport vehicle. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a transport vehicle provided in one embodiment.

[0019] Figure 2 for Figure 1 The diagram shows a three-dimensional structure of the transport vehicle when the main positioning frame is disassembled relative to the carrier seat.

[0020] Figure 3 for Figure 1 The diagram shows the three-dimensional structure of the transport vehicle when it is folded.

[0021] Figure 4 for Figure 1 The diagram shows a three-dimensional structure of the transport vehicle when the locking lever is in the locked position.

[0022] Figure 5 for Figure 4 The diagram shows a three-dimensional structure of the main positioning frame in the transport vehicle.

[0023] Figure 6 for Figure 4 The diagram shows a planar sectional view of the main positioning frame in the transport vehicle.

[0024] Figure 7 for Figure 1 The diagram shows a three-dimensional structure of the transport vehicle when the locking lever is in the unlocked position.

[0025] Figure 8 for Figure 7 The diagram shows a three-dimensional structure of the main positioning frame in the transport vehicle.

[0026] Figure 9 for Figure 7 The diagram shows a planar sectional view of the main positioning frame in the transport vehicle.

[0027] Figure 10 for Figure 1 The diagram shows the three-dimensional structure of the transport vehicle from another perspective.

[0028] Figure 11 For two Figure 1The diagram shows the three-dimensional structure of the transport vehicles after they are stacked.

[0029] Reference numerals: Transport vehicle 10, Product 20, Positioning hole 21, Bearing seat 100, Chassis 110, Bearing groove 111, Bearing component 120, Open groove 121, Rotary wheel 130, Main positioning frame 200, Positioning unit 210, Movable rod 211, Locking hole 2111, Main positioning component 212, Locking unit 220, Main body 221, Locking groove 2211, Locking rod 222, Support unit 230, Main longitudinal beam 2 31. Slide groove 2311, Interval space 2312, Mounting component 232, Fixing part 2321, Connecting part 2322, Mounting part 2323, Mounting hole 2324, Main crossbeam 240, Secondary positioning frame 300, Secondary longitudinal beam 310, Fixing rod 320, Secondary positioning component 330, Secondary crossbeam 340, Limiting crossbeam 400, First fixing pin 510, Secondary fixing pin 520, Third fixing pin 530, Guide pin 540. Detailed Implementation

[0030] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0031] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0032] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0033] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0034] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0035] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0036] See Figures 1 to 11 An embodiment of this application provides a transport vehicle 10 for transporting products 20, such as displays. The product 20 has positioning holes 21 for positioning. The transport vehicle 10 includes a support base 100, a main positioning frame 200, a secondary positioning frame 300, and a limiting beam 400. The support base 100 supports the product 20. The main positioning frame 200 is movably disposed at one end of the support base 100, and the secondary positioning frame 300 is movably disposed at the other end of the support base 100. The two ends of the limiting beam 400 are detachably connected to the main positioning frame 200 and the secondary positioning frame 300, respectively. The main positioning frame 200, the secondary positioning frame 300, and the limiting beam 400 are respectively used to abut against the edge of the product 20 and can be stacked on the support base 100.

[0037] Therefore, when the transport vehicle 10 stops working, the main positioning frame 200, the secondary positioning frame 300 and the limiting crossbeam 400 can all be stacked on the support seat 100, thus realizing the folding of the transport vehicle 10, thereby reducing the volume of the transport vehicle 10. Therefore, by folding the transport vehicle 10, the space occupied by the transport vehicle 10 during storage and transportation can be reduced, thereby improving the convenience of using the transport vehicle 10.

[0038] In some embodiments, the carrier 100 includes a chassis 110, carrier members 120, and wheels 130. Wheels 130 are disposed on the bottom surface of the chassis 110, facing a support surface such as the ground. Wheels 130 can contact the support surface, allowing them to roll and thus move the carrier 100 and the entire transport vehicle 10. The chassis 110 carries the product 20 and may be generally rectangular. Carrier members 120 protrude from opposite ends of the chassis 110; for example, there may be four carrier members 120, each positioned at one of the four right angles of the chassis 110. The carrier 120 has an open slot 121. The opening of the open slot 121 on the carrier 120 at one end of the carrier 100 faces the carrier 120 at the other end of the carrier 100. This can be understood as the openings of the open slots 121 on the carriers 120 at opposite ends of the carrier 100 facing each other. The main positioning frame 200 and the auxiliary positioning frame 300 are rotatably mounted in the open slots 121 of different carriers 120. The chassis 110 of the carrier 100 has multiple carrier grooves 111, spaced apart. Each carrier groove 111 corresponds to a product 20. When the product 20 is mounted on the chassis 110, the carrier groove 111 engages with the product 20, thus pre-positioning the product 20 and improving its stability and reliability during transportation.

[0039] In some embodiments, the main positioning frame 200 includes a positioning unit 210, a locking unit 220, and two support units 230. The two support units 230 are spaced apart on the carrier 100, such that the two support units 230 are respectively connected to two carrier members 120 located at the same end of the chassis 110. The two ends of the positioning unit 210 are respectively disposed on different support units 230, and the locking unit 220 is disposed on the support unit 230. When the locking unit 220 is locked, the positioning unit 210 is fixedly connected to the support unit 230, and the positioning unit 210 cooperates with the positioning hole 21 of the product 20. When the locking unit 220 is unlocked, the positioning unit 210 can slide relative to the support unit 230 to disengage the positioning unit 210 from the positioning hole 21. The sliding direction of the positioning unit 210 relative to the support unit 230 can be perpendicular to the spacing direction of the two support units 230.

[0040] Therefore, by simply unlocking the locking unit 220, the positioning unit 210 can slide relative to the support unit 230 to disengage from the positioning hole 21, thereby releasing the positioning effect of the positioning unit 210 on the product 20. This eliminates the need to disassemble multiple components, thus improving the efficiency of the transport vehicle 10 in releasing the positioning and ultimately enhancing the ease of operation of the transport vehicle 10.

[0041] In some embodiments, the positioning unit 210 includes a movable rod 211 and a plurality of main positioning members 212. The two ends of the movable rod 211 are respectively disposed on the support unit 230, and the plurality of main positioning members 212 are spaced apart on the movable rod 211. Each main positioning member 212 is used to engage with a positioning hole 21. When the main positioning member 212 engages with the positioning hole 21 of the product 20, the positioning unit 210 can position the product 20, preventing the product 20 from shifting or shaking relative to the transport vehicle 10 during transportation, thereby improving the stability and reliability of the product 20 during transportation.

[0042] In some embodiments, the locking unit 220 can be a self-locking indexing pin, which can be a standard part, etc. For example, the locking unit 220 includes a main body 221 and a locking rod 222. The movable rod 211 of the positioning unit 210 has a locking hole 2111. The main body 221 is fixedly mounted on the support unit 230. The locking rod 222 is movably connected to the main body 221 and has a locked position and an unlocked position relative to the main body 221. In the locked position, the locking rod 222 cooperates with the locking hole 2111, so that the movable rod 211 and the entire positioning unit 210 are fixedly connected to the support unit 230 through the locking rod 222. In the unlocked position, the locking rod 222 disengages from the locking hole 2111, so that the movable rod 211 and the entire positioning unit 210 are released from the fixed connection relationship with the support unit 230, thereby causing the movable rod 211 and the entire positioning unit 210 to slide relative to the support unit 230.

[0043] In some embodiments, the locking rod 222 can slidably pass through a hole in the main body 221, allowing it to slide relative to the main body 221 within the hole and rotate relative to the main body 221. A locking groove 2211 is provided on the main body 221; in the locked position, the locking rod 222 engages with the locking groove 2211, and in the unlocked position, the locking rod 222 disengages from the locking groove 2211. Specifically, when it is necessary to move the locking rod 222 from the locked position to the unlocked position, the locking rod 222 can first be moved upward relative to the main body 221, disengaging it from the locking groove 2211 and the positioning hole 21. Then, the locking rod 222 is rotated a certain angle relative to the main body 221, allowing the main body 221 to support the locking rod 222, at which point the locking rod 222 moves to the unlocked position. When it is necessary to move the locking lever 222 from the unlocked position to the locked position, the locking lever 222 can first be rotated at a certain angle relative to the main body 221 so that the locking lever 222 can be inserted into the locking groove 2211. Then, the locking lever 222 can be slid relative to the main body 221 so that the locking lever 222 cooperates with the locking groove 2211 and the positioning hole 21. At this time, the locking lever 222 moves to the locked position.

[0044] In some embodiments, the support unit 230 includes a main longitudinal beam 231 and a mounting member 232. The main longitudinal beam 231 is connected to the support member 120 of the support seat 100, and the mounting member 232 is fixedly connected to the main longitudinal beam 231. A locking unit 220 is disposed on the mounting member 232. The mounting member 232 includes a fixing part 2321, a connecting part 2322, and a mounting part 2323. There are two fixing parts 2321, which are spaced apart from each other and fixedly connected to the main longitudinal beam 231. There are also two connecting parts 2322, which protrude from the fixing parts 2321 so that the connecting parts 2322 can be perpendicular to the fixing parts 2321. The locking unit 220 is disposed on the connecting part 2322. The two ends of the mounting part 2323 are respectively connected to the two connecting parts 2322, that is, the two ends of the mounting part 2323 are respectively connected to the ends of the two connecting parts 2322 away from the fixing part 2321. This makes the mounting part 2323 and the main longitudinal beam 231 spaced apart, so there is a gap space 2312 between the mounting part 2323 and the main longitudinal beam 2311. The mounting part 2323 has a mounting hole 2324, which communicates with the gap space 2312. The movable rod 211 of the positioning unit 210 passes through the mounting hole 2324 and the gap space 2312. In the extension direction of the main longitudinal beam 231, that is, in the vertical direction, the size of the movable rod 211 and the mounting hole 2324 are equal, so the movable rod 211 cannot slide relative to the main longitudinal beam 231 along the extension direction of the main longitudinal beam 231. In the sliding direction of the movable rod 211, that is, in the horizontal direction, the size of the mounting hole 2324 is larger than the size of the movable rod 211. This sliding direction can be understood as the interval direction between the main positioning frame 200 and the auxiliary positioning frame 300, so that the movable rod 211 can slide relative to the main longitudinal beam 231 in the horizontal direction.

[0045] In some embodiments, the main longitudinal beam 231 of the support unit 230 is detachably connected to the carrier 120. Specifically, the transport vehicle 10 further includes a first fixing pin 510 and a second fixing pin 520, which together with the carrier 120 form a detachable connection. A groove 2311 may be provided on the main longitudinal beam 231, extending along the length of the main longitudinal beam 231. The first fixing pin 510 and the second fixing pin 520 can simultaneously pass through the open groove 121 and the groove 2311. When the main positioning bracket positions the product 20, the main longitudinal beam 231 is vertically positioned, and the first fixing pin 510 and the second fixing pin 520 fix the main longitudinal beam 231 to the carrier 120. At this time, the first fixing pin 510 is located above the second fixing pin 520, meaning the first fixing pin 510 is further away from the ground or other supporting surfaces than the second fixing pin 520.

[0046] Therefore, the main positioning frame 200 has a positioning position and a folding position. In the positioning position, the main positioning member 212 can cooperate with the positioning hole 21. In the folding position, the main positioning frame 200 is stacked on the chassis 110. Specifically, when it is necessary to move the main positioning frame 200 from the positioning position to the folding position, the second fixing pin 520 can be unloaded from the bearing member 120, so that the main longitudinal beam 231 moves upward a certain distance in the open groove 121. When the first fixing pin 510 abuts against the lower end of the slide groove 2311, the main longitudinal beam 231 can rotate around the first fixing pin 510 close to the chassis 110, thereby moving the main positioning frame 200 from the positioning position to the folding position. When the main positioning frame 200 needs to be moved from the folded position to the positioning position, the main longitudinal beam 231 can rotate around the first fixing pin 510 away from the chassis 110. When the main longitudinal beam 231 is in a vertical state, it can move downward in the open groove 121. When the first fixing pin 510 abuts against the upper end of the slide groove 2311, the main positioning frame 200 moves to the positioning position. Then, the second fixing pin 520 is installed on the carrier 120, and the main longitudinal beam 231 is fixed by the first fixing pin 510 and the second fixing pin 520, thus fixing the main positioning frame 200 in the positioning position. It can be understood that when the first fixing pin 510 and the second fixing pin 520 are unloaded from the carrier 120 at the same time, the main longitudinal beam 231 and the entire main positioning frame 200 can be unloaded from the carrier 100.

[0047] In some embodiments, the main positioning frame 200 further includes a main crossbeam 240, which connects the main longitudinal beams 231 of the two support units 230. By providing the main crossbeam 240, the structural strength of the main positioning frame 200 can be reasonably improved. It is understood that the main crossbeam 240 can also abut against the product 20, so the main crossbeam 240 can also limit the product 20 to a certain extent, thereby improving the stability and reliability of the product 20 during transportation.

[0048] In some embodiments, the secondary positioning frame 300 includes a secondary longitudinal beam 310, a fixing rod 320, and secondary positioning members 330. Two secondary longitudinal beams 310 are included, each detachably connected to two bearing members 120 disposed at the same end of the chassis 110. Both ends of the fixing rod 320 are fixedly connected to the secondary longitudinal beams 310. Multiple secondary positioning members 330 protrude from the fixing rod 320 and engage with the positioning holes 21 of the product 20, thereby enabling the secondary positioning frame 300 to position the product 20.

[0049] The secondary longitudinal beam 310 and the main longitudinal beam 231 can be structurally similar, meaning the secondary longitudinal beam 310 can also be provided with a sliding groove 2311. The secondary longitudinal beam 310 is also fixed to the bearing member 120 by the first fixing pin 510 and the second fixing pin 520. The secondary positioning frame 300 has a positioning position and a folding position. The operating principle of the secondary positioning frame 300 moving between the positioning position and the folding position can be the same as that of the main positioning frame 200. Therefore, the operating principle of the main positioning frame 200 moving between the positioning position and the folding position can be referred to above, and will not be repeated here.

[0050] In some embodiments, the secondary positioning frame 300 may further include a secondary crossbeam 340, which is connected between two secondary longitudinal beams 310, that is, both ends of the secondary crossbeam 340 are respectively connected to the two secondary longitudinal beams 310. By setting the secondary crossbeam 340, the structural strength of the secondary positioning frame 300 can be reasonably improved. It can be understood that the secondary crossbeam 340 can also abut against the product 20, so the secondary crossbeam 340 can also play a limiting role for the product 20 to a certain extent, thereby improving the stability and reliability of the product 20 during transportation.

[0051] In some embodiments, the transport vehicle 10 further includes a third fixing pin 530, which is detachably connected to the main positioning frame 200 and the secondary positioning frame 300. The third fixing pin 530 is used to fix the limiting beam 400. It is understood that both ends of the limiting beam 400 are fixedly connected to the main longitudinal beam 231 and the secondary longitudinal beam 310 respectively via the third fixing pin 530. When the third fixing pin 530 is unloaded from the main longitudinal beam 231 and the secondary longitudinal beam 310, the limiting beam 400 can be unloaded from the main positioning frame 200 and the secondary positioning frame 300. By providing the limiting beam 400, the limiting beam 400 can abut against the product 20 along a spacing direction perpendicular to the main positioning frame 200 and the secondary positioning frame 300, thereby limiting the product 20 and further improving its stability and reliability during transportation.

[0052] In some embodiments, the transport vehicle 10 further includes a guide pin 540, which protrudes from the end of the main longitudinal beam 231 and the secondary longitudinal beam 310 away from the support seat 100. The guide pin 540 is used to insert into the support seat 100 of another transport vehicle 10. It can be understood that when the two transport vehicles 10 are stacked, the guide pin 540 of the lower transport vehicle 10 can be inserted into the support seat 100 of the upper transport vehicle 10, thereby positioning the upper transport vehicle 10 and ultimately achieving the stacking of the two transport vehicles 10.

[0053] The working principle of transport vehicle 10 is explained below:

[0054] When product 20 needs to be unloaded from transport vehicle 10, the third fixing pin 530 located on the secondary longitudinal beam 310 can be unloaded, thereby releasing the connection between the limiting crossbeam 400 and the secondary longitudinal beam 310. Then, the locking rod 222 is moved to the unlocked position, causing the movable rod 211 to slide relative to the mounting hole 2324, thereby removing the main positioning member 212 from the positioning hole 21 of product 20 and releasing the positioning relationship between the main positioning frame 200 and product 20. Next, the first fixing pin 510 and the second fixing pin 520 are unloaded from the carrier 120, thereby releasing the connection between the main longitudinal beam 231 and the carrier 120, and then the limiting crossbeam 400 is unloaded from the carrier seat 100 along with the main positioning frame 200. At this time, the carrier groove 111 of product 20 on chassis 110 can be moved away from the secondary positioning member 330, causing the secondary positioning member 330 to disengage from the positioning hole 21 of product 20, and finally achieving the unloading of product 20. It is understandable that when the product needs to be loaded onto the carrier 100, the limiting beam 400 also needs to be unloaded from the carrier 100 along with the main positioning frame 200. This can eliminate the interference between the limiting beam 400 and the main positioning frame 200, so that the product 20 can be quickly loaded onto the carrier 100.

[0055] After product 20 is loaded onto carrier 100, the main longitudinal beam 231 is fixed to carrier 120 via first fixing pin 510 and second fixing pin 520, and the limiting crossbeam 400 is fixed to secondary longitudinal beam 310 via third fixing pin 530. Next, locking lever 222 is moved to the unlocked position, causing movable lever 211 to move relative to main longitudinal beam 231, ensuring main positioning component 212 engages with positioning hole 21 of product 20. Then, locking lever 222 is moved to the locked position, thereby fixing movable lever 211 to main longitudinal beam 231, ultimately achieving positioning of product 20 by the entire transport vehicle 10.

[0056] After product 20 is completely unloaded from carrier 100 and transport vehicle 10 is no longer in use, referring to the above-described method of stacking main positioning frame 200 and secondary positioning frame 300 on chassis 110, the limiting beam 400 can be stacked on chassis 110 first, and then the secondary positioning frame 300 can be stacked on chassis 110, so that the limiting beam 400 is sandwiched between chassis 110 and secondary positioning frame 300, preventing the limiting beam 400 from falling off chassis 110. Then, the main positioning frame 200 is stacked on chassis 110, thus achieving the folding of the entire transport vehicle 10.

[0057] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A transport vehicle, characterized in that include: Support base, the support base being used to support the product; and The main positioning frame includes a positioning unit, a locking unit, and two support units. The two support units are spaced apart on the bearing seat. The two ends of the positioning unit are respectively disposed on different support units. The locking unit is disposed on the support unit. When the locking unit is locked, the positioning unit is fixedly connected to the support unit, and the positioning unit cooperates with the positioning hole of the product; When the locking unit is unlocked, the positioning unit can slide relative to the support unit to disengage the positioning unit from the positioning hole.

2. The transport cart of claim 1, wherein, The sliding direction of the positioning unit relative to the support unit is perpendicular to the spacing direction of the two support units.

3. The transport cart of claim 1, wherein, The positioning unit includes a movable rod and multiple main positioning components. The movable rod is disposed on the support unit, and the multiple main positioning components are spaced apart on the movable rod. The main positioning components are used to cooperate with the positioning holes.

4. The transport cart of claim 1, wherein, The locking unit includes a main body and a locking rod. The positioning unit has a locking hole. The main body is fixedly mounted on the support unit. The locking rod is movably connected to the main body and has a locked position and an unlocked position relative to the main body. In the locked position, the locking rod engages with the locking hole. In the unlocked position, the locking rod disengages from the locking hole.

5. The transport cart of claim 4, wherein, The locking rod is slidably inserted into the main body and can rotate relative to the main body. The main body has a locking groove. In the locked position, the locking rod engages with the locking groove. In the unlocked position, the locking rod disengages from the locking groove.

6. The transport cart of claim 1, wherein, The support unit includes a main longitudinal beam and a mounting component. The main longitudinal beam is connected to the bearing seat, the mounting component is fixedly connected to the main longitudinal beam, and the locking unit is disposed on the mounting component.

7. The transport cart of claim 6, wherein, The mounting component includes a fixing part, a connecting part, and a mounting part. The number of fixing parts includes two, and the fixing parts are fixedly connected to the main longitudinal beam. The connecting part protrudes from the fixing part, and the locking unit is disposed on the connecting part. The two ends of the mounting part are respectively connected to the two connecting parts, and there is a gap between the mounting part and the main longitudinal beam. The mounting part has a mounting hole communicating with the gap, and the positioning unit passes through the mounting hole and the gap.

8. The transport cart of claim 7, wherein, The positioning unit includes a movable rod passing through the mounting hole. Both the movable rod and the mounting hole have rectangular cross-sections. In the extending direction of the main longitudinal beam, the dimensions of the movable rod and the mounting hole are equal. In the sliding direction of the movable rod, the dimension of the mounting hole is larger than the dimension of the movable rod.

9. The transport vehicle according to claim 1, characterized in that, The support unit is detachably connected to the bearing seat.

10. The transport vehicle according to claim 1, characterized in that, The main positioning frame also includes a main crossbeam, which connects the two support units.

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