Truck carriage

Abstract

The invention provides a boxcar, relates to the technical field of transportation equipment, and solves the problem that an existing boxcar cannot meet the loading and unloading requirements of various different goods. The compartment comprises a compartment cover. The compartment body is located below the compartment cover and is provided with a cross bar and a vertical pile vertically connected with the cross bar, and the cross bar is provided with a guide groove; the turnover door is matched with the compartment body and comprises a door body, and the top of the turnover door is provided with a guide piece matched with the guide groove; the two ends of the rotating rod are rotationally connected with the door body and the vertical piles correspondingly; and the two ends of the telescopic part are rotationally connected with the door body and the compartment body correspondingly, and the guide part can move in the extending direction of the guide groove along with stretching and retracting of the telescopic part so that the door body can turn over between the side portion of the compartment body and the top of the compartment body. The turnover door is matched with the compartment body, and the door body can turn over relative to the compartment body along with stretching and retracting of the telescopic piece through cooperation between the guide piece on the door body and the guide groove in the compartment body, so that the convenience and efficiency of cargo loading and unloading are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of transportation equipment, and in particular to a truck compartment. Background Art

[0002] In order to meet different cargo transportation needs, there are currently many different types of carriages on the market, such as high-bar carriages, fully enclosed carriages, flatbed carriages, flying-wing carriages, etc. Among them, high-bar carriages, as the most common type of carriage, can carry a variety of different goods, such as building materials, furniture, electrical appliances, mechanical equipment, livestock, etc., with their wide range of scene adaptability. They are especially suitable for transporting goods that need to maintain a certain degree of ventilation during the journey or require frequent loading and unloading. As a new type of carriage that has gradually emerged in recent years, the flying-wing carriage is known for its unique and efficient cargo loading and unloading capabilities; the biggest feature of the flying-wing carriage is that the doors on both sides of the carriage can be flipped open from the bottom of the carriage to the top of the carriage like wings, so that the goods can be loaded and unloaded from both sides of the carriage, greatly saving cargo loading and unloading time and labor costs.

[0003] However, whether it is a fixed structure carriage represented by a high-bar carriage or a movable structure carriage represented by a flying-wing carriage, they are still more or less unable to meet the freight needs in certain specific scenarios. Specifically, when transporting goods that require ventilation (such as vegetables, livestock, etc.), the flying-wing carriage cannot meet this demand. Although the high-bar carriage has a good ventilation effect, the fences, railings, canopy poles and other structures in the high-bar carriage are usually fixed to the carriage body, which affects the loading and unloading efficiency of the goods to a certain extent. Although the fences, railings, canopy poles and other structures in some high-bar carriages can be disassembled, the above structures also require manual operation by the user during the disassembly process, which is still not conducive to saving the loading and unloading time and cost of the goods. When transporting goods that require frequent loading and unloading or have high sealing requirements, the high-bar carriage cannot meet this demand, and the flying-wing carriage can realize the automatic opening and closing of the carriage door by virtue of the setting of the flying-wing door. However, during the opening and closing process of the flying wing door, because it often has a large rotation radius, this makes the flying wing type car have extremely high requirements on the loading and unloading space of cargo. In other words, this type of flying wing type car cannot be well applied in those scenes with narrow space.

[0004] It can be found that no matter which type of truck compartment is used, there are some difficulties that cannot be solved well at present when loading and unloading goods in certain specific scenarios. Therefore, a new type of truck compartment is urgently needed to meet a variety of different cargo loading and unloading needs. Summary of the invention

[0005] In view of the above problems, the present invention provides a truck compartment to solve the problem that the existing truck compartments cannot meet a variety of different cargo loading and unloading requirements.

[0006] The present invention provides a freight car compartment, comprising:

[0007] compartment cover;

[0008] The box body located below the box cover has a horizontal bar and a pile vertically connected to the horizontal bar, and the horizontal bar is provided with a guide groove;

[0009] The flip door matched with the compartment includes:

[0010] The door body has a guide piece matched with the guide groove at the top;

[0011] A rotating rod, both ends of which are rotatably connected to the door body and the pile;

[0012] The telescopic member has two ends which are rotatably connected to the door body and the compartment respectively, and as the telescopic member is extended and retracted, the guide member can move along the extension direction of the guide groove to realize the flipping of the door body between the side of the compartment and the top of the compartment.

[0013] Furthermore, the compartment body also includes a side bar horizontally connected to the top of the cross bar, and a push piece arranged on the side bar, and the push piece can push against the edge of the door body so that the door body can move horizontally along the guide groove.

[0014] Further, the door body includes an upper frame beam, a lower frame beam located below the upper frame beam, and side frame beams respectively connected to the upper frame beam and the lower frame beam;

[0015] The guides include:

[0016] A sliding plate connected to the end of the upper frame beam;

[0017] A first guide wheel is arranged on the slide plate, the first guide wheel can contact the top wall and the bottom wall of the guide groove respectively, and has a first axis perpendicular to the extension direction of the guide groove;

[0018] The second guide wheel is arranged on the slide plate, and the second guide wheel can contact the side wall of the guide groove, and has a second axis perpendicular to the first axis.

[0019] Furthermore, a first reinforcing beam is arranged at the bottom of the upper frame beam and / or the bottom of the lower frame beam, and a second reinforcing beam is arranged at the bottom of the side bar.

[0020] Furthermore, the flip door also includes a unit door rotatably connected to the door body, and a locking member is provided at an edge of the unit door;

[0021] The door body also includes a fixed beam connected to the upper frame beam and the lower frame beam respectively, and a locking member arranged on the fixed beam, and the locking member cooperates with the locking member to enable the unit door to open or close the door body.

[0022] Furthermore, a guide is provided at the top of the horizontal bar;

[0023] The compartment cover includes:

[0024] Cover body;

[0025] The crawling mechanism arranged at the end of the cover body comprises:

[0026] A crawling seat fixed to the cover body;

[0027] A transmission shaft arranged along the center line of the crawler seat;

[0028] A transmission member coaxially arranged on the outer side of the transmission shaft, the transmission member corresponding to the guide member;

[0029] A connecting plate, the upper part of which is rotatably connected to the transmission shaft, and the lower part of which has a roller correspondingly arranged in the guide groove;

[0030] A first driving member connected to an end of the transmission shaft;

[0031] Wherein, under the drive of the first driving member, and through the cooperation between the roller and the guide groove, and the cooperation between the guide member and the transmission member, the cover body can move along the contour of the cross bar.

[0032] Further, the cover body includes a crossbeam arranged parallel to the crossbar and a pair of side beams vertically connected to the crossbeam, and a folding mechanism respectively connected to the pair of side beams, and the crawling mechanism is arranged at the end of the side beam;

[0033] Driven by the folding mechanism and the crawling mechanism, a pair of side beams can move toward or away from each other along the extension direction of the cross beam to achieve the opening and closing of the top of the compartment cover.

[0034] Furthermore, the box body also has an anti-deformation component connected to the cross bar and the pile respectively, and the anti-deformation component includes:

[0035] A fixed frame having a through buffer space;

[0036] A mounting seat matching the fixing frame, having a mounting groove opening toward the fixing frame;

[0037] The two ends of the sliding member can pass through the buffer space and be respectively connected with the side walls of the mounting groove, and in response to the deformation of the compartment body, the sliding member can slide in the buffer space.

[0038] Furthermore, the truck compartment further comprises a cloth rolling mechanism, and the cloth rolling mechanism comprises:

[0039] Tarpaulin, covering the outside of the compartment;

[0040] A rolling rod connected to the edge of the tarpaulin;

[0041] The second driving member is connected to the end of the cloth rolling rod, and driven by the second driving member, the tarpaulin can be expanded and retracted outside the cloth rolling rod along the circumference of the cloth rolling rod, and the cloth rolling rod moves along the outer contour of the vehicle body.

[0042] Further, the car body also includes a bottom bar horizontally connected to the bottom of the cross bar;

[0043] The truck compartment further comprises a cloth tightening mechanism arranged at the bottom of the compartment body, and the cloth tightening mechanism comprises:

[0044] The cloth-tightening hook is provided with a limiting groove, and the limiting groove has an opening facing vertically downward;

[0045] A floating seat is located below the cloth tightening hook, and the floating seat is connected to the bottom bar;

[0046] Wherein, under the drive of the second driving member, the cloth rolling rod moves to the cloth tightening hook, and can be rolled into the cloth limiting groove through the opening.

[0047] Due to the adoption of the above technical solution, the technical effects achieved by the present invention are as follows:

[0048] The truck compartment provided by the present invention comprises a compartment cover, a compartment body and a reversible door, wherein the reversible door is adapted to the compartment body, and through the cooperation between the guide member on the door body and the guide groove on the compartment body, the door body can be reversed relative to the compartment body as the telescopic member is extended and retracted, thereby realizing the opening and closing of the side of the truck compartment, and improving the convenience and efficiency of cargo loading and unloading. Specifically, the cooperation between the guide member and the guide groove ensures the stability and accuracy of the door body during the reversal process, reduces the friction between the door body and the compartment body to a certain extent, reduces the noise, and also improves the stability and durability of the reversible door. In addition, by setting a rotating rod respectively connecting the door body and the pile, not only can good support for the reversal movement of the door body be achieved, but also it is conducive to maintaining a firm connection between the door body and the pile, thereby improving the safety of the door body during the reversal process. In addition, the telescopic movement of the telescopic member not only simplifies the operation steps of the reversible door, but also ensures the smoothness and efficiency of the reversal process. At the same time, the elastic characteristics of the telescopic member can absorb the impact force during the reversal process, which is conducive to extending the service life of the component. Furthermore, the body of the truck compartment in the present application can adopt a high-bar structure so that it can meet the ventilation needs of the goods, and compared with the flying wing compartment, the flip door in the present application has a smaller turning radius, which is conducive to further improving the compartment's multi-scene adaptability.

[0049] Furthermore, in the truck compartment provided by the present invention, a guide is also provided at the top of the horizontal bar, and the compartment cover includes a cover body and a crawling mechanism provided at the end of the cover body. Specifically, the compartment cover can move along the contour of the horizontal bar through the driving of the first driving member, and through the cooperation between the roller and the guide groove and the cooperation between the guide and the transmission member. This design realizes the automatic opening and closing of the compartment cover, improves the convenience of the compartment, and reduces the labor intensity of manual operation. At the same time, it can also ensure the sealing of the compartment during transportation and protect the goods from the influence of the external environment.

[0050] Furthermore, the cover body of the truck compartment provided by the present invention includes a crossbeam, a side beam and a folding mechanism. Under the drive of the folding mechanism and the crawling mechanism, the side beams can move toward or away from each other along the extension direction of the crossbeam to realize the opening and closing of the top of the compartment cover. This design can flexibly adjust the opening and closing degree of the compartment cover according to different cargo loading and unloading requirements, optimize the opening and closing method of the compartment cover, improve the space utilization rate of the compartment, facilitate the provision of a larger operating space for cargo loading and unloading, and at the same time ensure the sealing of the compartment cover when closed.

[0051] Furthermore, the truck compartment provided by the present invention also includes a cloth rolling mechanism, and the arrangement of the cloth rolling mechanism facilitates covering and protecting the outer side of the compartment. The coordination of the tarpaulin, the cloth rolling rod and the second driving member enables the tarpaulin to be extended and retracted along the circumferential direction of the cloth rolling rod, and the cloth rolling rod can move along the outer contour of the compartment. In this way, the compartment can be conveniently covered or uncovered according to weather conditions or the needs of the goods, protecting the goods from the influence of natural factors such as sunlight and rain.

[0052] Furthermore, the truck compartment provided by the present invention also includes a cloth tightening mechanism. The setting of the cloth tightening mechanism can better fix the tarpaulin on the bottom of the compartment, ensure the tightness of the tarpaulin covering, and prevent the tarpaulin from being blown up or shifted by the wind during transportation, thereby improving the protection effect of the goods.

[0053] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] The accompanying drawings are only used to illustrate the embodiments and are not to be considered as limiting the present invention. In addition, the same reference symbols are used to represent the same components throughout the accompanying drawings. In the accompanying drawings:

[0055] Figure 1 It is a structural schematic diagram of a freight car compartment provided by the present invention;

[0056] Figure 2 It is a structural schematic diagram of another freight car compartment provided by the present invention;

[0057] Figure 3 It is a structural schematic diagram of another freight car compartment provided by the present invention;

[0058] Figure 4 It is a structural schematic diagram of a compartment provided by the present invention;

[0059] Figure 5 It is a structural schematic diagram of a horizontal bar provided by the present invention;

[0060] Figure 6 It is a structural schematic diagram of a door body provided by the present invention;

[0061] Figure 7 The present invention provides Figure 6 A magnified schematic diagram of part A;

[0062] Figure 8 It is a structural schematic diagram of another door body provided by the present invention;

[0063] Fig. 9 The present invention provides Figure 8 A magnified schematic diagram of part B;

[0064] Fig.10 It is a structural schematic diagram of a compartment cover provided by the present invention;

[0065] Fig.11 It is a structural schematic diagram of another compartment cover provided by the present invention;

[0066] Fig.12 The present invention provides Fig.11 A magnified schematic diagram of part C;

[0067] Fig.13 It is a structural schematic diagram of another freight car compartment provided by the present invention;

[0068] Fig.14 It is a structural schematic diagram of a folding mechanism provided by the present invention;

[0069] Fig.15 It is a structural schematic diagram of an anti-deformation component provided by the present invention;

[0070] Fig.16 It is a structural schematic diagram of a cloth rolling mechanism provided by the present invention;

[0071] Fig.17 It is a structural schematic diagram of another cloth rolling mechanism provided by the present invention;

[0072] Fig.18 It is a structural schematic diagram of another freight car compartment provided by the present invention;

[0073] Fig.19 The present invention provides Fig.18 The enlarged schematic diagram of the D part;

[0074] Fig. 20 It is a structural schematic diagram of a cloth tightening mechanism provided by the present invention;

[0075] Fig.21 It is a structural schematic diagram of another compartment cover provided by the present invention;

[0076] Fig. 22 It is a structural schematic diagram of a crawling mechanism provided by the present invention;

[0077] Fig.23 It is a structural schematic diagram of a synchronous shaft provided by the present invention;

[0078] Fig.24 It is a structural schematic diagram of another compartment cover provided by the present invention;

[0079] Fig.25 It is a structural schematic diagram of another horizontal bar provided by the present invention;

[0080] Fig.26 It is a schematic diagram of a connection structure between a flip door and a compartment cover provided by the present invention.

[0081] In the figure:

[0082] 100 compartment cover, 110 cover body, 111 cross beam, 112 side beam, 113 slide groove, 114 synchronization shaft, 1141 matching part, 1142 transmission wheel, 120 crawling mechanism, 121 crawling seat, 122 transmission shaft, 1221 meshing part, 1222 driving wheel, 1223 driven wheel, 123 transmission member, 124 connecting plate, 125 first driving member, 126 roller, 127 guide roller, 130 folding mechanism, 131 first folding arm, 1311 first track groove, 132 second folding arm, 1321 second track groove, 133 first slider, 134 second slider, 135 connecting rod assembly, 136 first connecting rod, 137 second connecting rod, 138 telescopic rod, 1381 spiral support rod, 1382 sleeve;

[0083] 200 box body, 210 cross bar, 2101 horizontal section, 2102 curved section, 211 guide groove, 212 guide member, 220 pile, 230 side bar, 231 second reinforcing beam, 240 push member, 250 anti-deformation assembly, 251 fixed frame, 252 mounting seat, 253 sliding member, 2531 roller shaft, 2532 roller body, 2533 stopper, 260 bottom bar, 270 tensioner, 271 connecting sleeve, 272 fixed seat, 273 adjusting screw;

[0084] 300 flip door, 310 door body, 311 guide member, 312 upper frame beam, 313 lower frame beam, 314 side frame beam, 315 slide plate, 316 first guide wheel, 317 second guide wheel, 318 first reinforcement beam, 319 fixed beam, 3191 locking member, 320 rotating rod, 330 telescopic member, 340 unit door, 341 locking member, 350 connecting part;

[0085] 400 cloth rolling mechanism, 410 tarpaulin, 420 cloth rolling rod, 430 second driving member, 440 guide rod assembly, 441 first guide rod, 442 second guide rod;

[0086] 500 cloth tightening mechanism, 510 cloth tightening hook, 511 first tensioning member, 512 second tensioning member, 520 floating seat, 521 seat body, 522 tension spring, 530 buckle lock, 531 bending section, 532 stop section, 540 third driving member. DETAILED DESCRIPTION

[0087] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein.

[0088] Reference Figure 1-Figure 7 As shown, an embodiment of the present invention provides a truck compartment, comprising: a compartment cover 100 and a compartment body 200 located below the compartment cover 100, and a flip door 300 adapted to the compartment body 200. The compartment body 200 has a horizontal bar 210 and a stake 220 vertically connected to the horizontal bar 210, and the horizontal bar 210 is provided with a guide groove 211; the flip door 300 comprises a door body 310, a rotating rod 320 and a telescopic member 330, the top of the door body 310 is provided with a guide member 311 matched with the guide groove 211, and the two ends of the rotating rod 320 are respectively rotatably connected to the door body 310 and the stake 220; the two ends of the telescopic member 330 are respectively rotatably connected to the door body 310 and the compartment body 200, and as the telescopic member 330 is extended and retracted, the guide member 311 can move along the extension direction of the guide groove 211 to realize the flipping of the door body 310 between the side of the compartment body 200 and the top of the compartment body 200.

[0089] It should be noted that the truck compartment provided in the present application can be configured with different structures of the compartment 200 so that the overall truck compartment can meet the cargo loading and unloading scenarios in different freight scenarios. For example, the compartment 200 can adopt a high-bar compartment, a side curtain compartment and other structures so that the truck compartment meets the ventilation requirements; or, the compartment 200 can adopt a closed compartment (such as a container, a flying wing compartment, etc.) structure so that the truck compartment meets the sealing requirements. The present application does not limit the specific structure of the compartment 200. It should also be noted that the truck compartment provided in the present application can not only be used as a separate compartment to match the front of the vehicle, but also as an external system of the truck compartment, which is compatible with the truck compartment and used together. The present application does not limit this.

[0090] In addition, in order to further improve the loading and unloading capacity of the cargo in multiple scenarios of the truck compartment, especially to enable the compartment 200 to load and unload large-sized cargo. Preferably, the pile 220 in the compartment 200 can be a telescopic column, so that the height of the compartment 200 can be adjusted, thereby facilitating the loading and unloading of large-sized cargo in the compartment 200. Among them, the telescopic column usually includes a telescopic sleeve and a hydraulic mechanism for driving the telescopic sleeve. According to the different telescopic directions, it can be divided into a unidirectional telescopic column and a bidirectional telescopic column; according to the number of hydraulic mechanisms, it can be divided into a single-cylinder telescopic column and a double-cylinder telescopic column, etc.

[0091] It should also be noted that the present application realizes the flipping of the flip door 300 between the side of the compartment 200 and the top of the compartment 200 by the cooperation of the guide member 311 on the door body 310 and the guide groove 211 in the cross bar 210. In order to improve the stability of the flipping process of the flip door 300 and to avoid the interference that may occur during the movement of the flip door 300 compared to the compartment 200 to the greatest extent. Preferably, refer to Figure 4 As shown, the crossbar 210 may include a horizontal section 2101 and a curved section 2102 connected to both ends of the horizontal section 2101, and the guide groove 211 is respectively corresponding to the horizontal section 2101 and the curved section 2102 and is opened on the side wall of the crossbar 210. The crossbar 210 of this structure, through the arrangement of the curved section 2102, makes the movement process of the guide member 311 in the guide groove 211 smoother, thereby facilitating the efficient turning of the flip door 300, thereby improving the convenience and safety of loading and unloading goods.

[0092] Regarding the specific structure of the guide member 311 and the guide groove 211, the present application can have a variety of different implementations. For example, the guide member 311 can be a guide wheel, a guide ball, a roller, a sprocket, a slider, etc., and the guide groove 211 can be a rectangular groove, a trapezoidal groove, etc. that are compatible with the guide member 311. The present application does not limit the specific structure of the guide member 311 and the guide groove 211.

[0093] The rotating rod 320 that is rotatably connected to both the door body 310 and the stake 220 can be a fixed rod or a telescopic rod. Among them, the fixed rod has a higher structural strength, so that it can better support the flipping movement process of the door body 310; the telescopic rod has a telescopic function, so that it can better adapt to the flipping trajectory of the door body 310, and then adapt to the flip door 300 with different rotation radius. The present application does not limit the specific structure of the rotating rod 320. In addition, the telescopic member 330 is a component used to drive the door body 310 to flip, which can be an electric push rod, or a hydraulic cylinder, a pneumatic cylinder, etc. The present application does not limit the specific structure of the telescopic member 330.

[0094] It should also be noted that the present application may have a variety of different implementations regarding the number and configuration of the flip door 300. In one implementation, there may be two flip doors 300, which are respectively disposed on both sides of the body 200, so that the two sides of the body 200 can be opened and closed; in another implementation, for a truck compartment with a longer body 200 (such as a truck compartment with a length of 17.5 m), a plurality of flip doors 300 may be disposed in parallel on one side of the truck compartment, such as two flip doors 300, three flip doors 300, etc.

[0095] In addition, it can be understood that the flip door 300 and the compartment cover 100 in the present application can be as follows: Figure 1-Figure 3 As shown, it is configured as a split structure; it can also be configured as Fig.26 As shown, it is configured as an integrated structure. When the flip door 300 and the compartment cover 100 are an integrated structure, the top of the door body 310 in the flip door 300 may be provided with a connecting portion 350 connected to the side beam 112 of the compartment cover 100; wherein the connecting portion 350 may be a connecting column, a connecting block, a fixing plate, etc., and the present application does not limit the specific structure of the connecting portion 350. In addition, the door body 310 and the side beam 112 may also be connected by integral welding or integral molding, and the present application does not limit the specific connection method between the flip door 300 and the compartment cover 100.

[0096] The truck compartment provided by the present invention has a reversible door 300 adapted to the compartment body 200, and through the cooperation between the guide member 311 on the door body 310 and the guide groove 211 on the compartment body 200, the door body 310 can be turned over relative to the compartment body 200 as the telescopic member 330 is extended and retracted, thereby realizing the opening and closing of the side of the truck compartment, and improving the convenience and efficiency of cargo loading and unloading. Specifically, the cooperation between the guide member 311 and the guide groove 211 ensures the stability and accuracy of the door body 310 during the reversal process, reduces the friction between the door body 310 and the compartment body 200 to a certain extent, reduces the noise, and also improves the stability and durability of the reversible door 300. In addition, by setting the rotating rod 320 respectively connecting the door body 310 and the stake 220, not only can good support for the reversal movement of the door body 310 be achieved, but also it is conducive to maintaining the firm connection between the door body 310 and the stake 220, thereby improving the safety of the door body 310 during the reversal process. In addition, the telescopic movement of the telescopic member 330 not only simplifies the operation steps of the flip door 300, but also ensures the smoothness and efficiency of the flipping process. At the same time, the elastic characteristics of the telescopic member 330 can absorb the impact force during the flipping process, which is conducive to extending the service life of the component. Furthermore, the body 200 of the truck compartment in the present application can adopt a high-bar structure to enable it to meet the ventilation needs of the goods, and compared with the flying wing compartment, the flip door 300 in the present application has a smaller rotation radius, which is conducive to further improving the multi-scene adaptability of the compartment.

[0097] In some embodiments, continue to refer to Figure 4 As shown, the compartment 200 further includes a side bar 230 horizontally connected to the top of the cross bar 210, and a push piece 240 disposed on the side bar 230, and the push piece 240 can push against the edge of the door body 310 so that the door body 310 can move horizontally along the guide groove 211. Preferably, the push piece 240 can be an electric push rod, a hydraulic cylinder, a pneumatic cylinder, etc., and the present application does not limit the specific structure of the push piece 240.

[0098] When the door body 310 is turned over from the top of the body 200 to the side of the body 200, it is very likely that the door body 310 cannot be turned over smoothly if it is driven by the telescopic member 330 alone. Therefore, the present application sets the push member 240 on the side bar 230 and makes the push direction of the push member 240 parallel to the cross bar 210, so that the push member 240 can smoothly transmit the push force to the door body 310; and the push member 240 is linked with the guide member 311 and the telescopic member 330, thereby further optimizing the movement trajectory of the door body 310, and thus improving the stability of the door body 310 turning process.

[0099] Optionally, there are multiple push members 240, and the multiple push members 240 are spaced apart and arranged on the side bar 230. The arrangement of multiple push members 240 can make the push force be transmitted to the door body 310 more evenly, thereby facilitating the synchronous start of the flipping movement of the door body 310.

[0100] Regarding the specific structure of the guide member 311, the present application can adopt the following Figure 6 In addition to the structure shown, the structure of the guide member 311 can also refer to the following embodiments:

[0101] Specifically, in this embodiment, referring to Figure 8 and Fig. 9 As shown, the door body 310 includes an upper frame beam 312 and a lower frame beam 313 located below the upper frame beam 312, and a side frame beam 314 respectively connected to the upper frame beam 312 and the lower frame beam 313. The guide member 311 includes a slide plate 315, a first guide wheel 316 and a second guide wheel 317, wherein the slide plate 315 is connected to the end of the upper frame beam 312, the first guide wheel 316 is arranged on the slide plate 315, and the first guide wheel 316 can contact the top wall and the bottom wall of the guide groove 211 respectively, and has a first axis perpendicular to the extension direction of the guide groove 211; the second guide wheel 317 is also arranged on the slide plate 315, and the second guide wheel 317 can contact the side wall of the guide groove 211, and has a second axis perpendicular to the first axis.

[0102] By providing the first guide wheel 316 and the second guide wheel 317, good contact between the guide member 311 and the inner wall of the guide groove 211 can be achieved, thereby facilitating the sliding fit between the guide member 311 and the guide groove 211. The number of the first guide wheel 316 and the second guide wheel 317 can be configured to be two, and the two first guide wheels 316 and the two second guide wheels 317 are respectively located on both sides of the slide plate 315. The provision of multiple first guide wheels 316 and multiple second guide wheels 317 is conducive to further improving the fit between the guide member 311 and the guide groove 211.

[0103] In some embodiments, reference Figure 4 , Figure 6 and Figure 8 As shown, a first reinforcing beam 318 is provided at the bottom of the upper frame beam 312 and / or the bottom of the lower frame beam 313 , and a second reinforcing beam 231 is provided at the bottom of the side bar 230 .

[0104] When the size of the box body 200 is long, the door body 310 with a single frame beam structure or the box body 200 with a single side bar 230 structure may affect the overall structural strength of the door body 310 or the box body 200. One phenotype may be that the frame beam or the side bar 230 is bent. Based on this, the present application improves the structural strength of the door body 310 and the box body 200 by setting the first reinforcing beam 318 and the second reinforcing beam 231, thereby improving the safety and reliability of the truck compartment.

[0105] The specific structures of the first reinforcing beam 318 and the second reinforcing beam 231 can be implemented in many different ways. For example, the first reinforcing beam 318 and the second reinforcing beam 231 can be implemented as follows: Figure 4 , Figure 6 and Figure 8 The structure shown may also be a single beam separately arranged at the bottom of the upper frame beam 312, the lower frame beam 313 and the side bar 230, and the present application has no limitation on this.

[0106] In some embodiments, reference Figure 6-Figure 8 As shown, the flip door 300 also includes a unit door 340 rotatably connected to the door body 310, and a locking member 341 is arranged on the edge of the unit door 340; the door body 310 also includes a fixed beam 319 respectively connected to the upper frame beam 312 and the lower frame beam 313, and a locking member 3191 arranged on the fixed beam 319, and the locking member 3191 cooperates with the locking member 341 to enable the unit door 340 to open or close the door body 310.

[0107] By setting the unit door 340, when the flip door 300 is located at the side of the compartment 200, or when the flip door 300 does not need to be completely flipped to the top of the compartment 200, the user can also load and unload small goods into the compartment 200 by opening and closing the unit door 340, thereby further improving the convenience and efficiency of loading and unloading goods in the truck compartment. In addition, the present application also realizes the locking connection between the unit door 340 and the door body 310 by setting the locking member 3191 and the locking member 341, thereby improving the safety of the door body 310 and avoiding the unit door 340 from being opened without reason as much as possible.

[0108] Regarding the specific structure of the locking member 341 and the locking member 3191, the present application may have a variety of different implementations. For example, the locking member 341 may be a lock buckle, and the locking member 3191 may be a lock pin; or, the locking member 341 and the locking member 3191 may be magnets that can be magnetically attracted to each other, and the present application does not limit this.

[0109] In some embodiments, reference Figure 4 and Figure 5 ,as well as Figure 10-12As shown, a guide member 212 is also provided at the top of the crossbar 210, and the compartment cover 100 includes a cover body 110 and a crawling mechanism 120 provided at the end of the cover body 110. The crawling mechanism 120 includes a crawling seat 121, a transmission shaft 122, a transmission member 123, a connecting plate 124 and a first driving member 125. The crawling seat 121 is fixed to the cover body 110, the transmission shaft 122 is provided along the center line of the crawling seat 121, the transmission member 123 is coaxially provided on the outside of the transmission shaft 122, and the transmission member 123 corresponds to the guide member 212; the upper part of the connecting plate 124 is rotatably connected to the transmission shaft 122, and the lower part of the connecting plate 124 has a roller 126 correspondingly provided in the guide groove 211; and the first driving member 125 is connected to the end of the transmission shaft 122. Driven by the first driving member 125 , and through the cooperation between the roller 126 and the guide groove 211 , and the cooperation between the guide member 212 and the transmission member 123 , the cover body 110 can move along the contour of the cross bar 210 .

[0110] It should be noted that the crawling mechanism 120 in the present application mainly drives the cover 110 so that the car cover 100 can move along the contour of the car body 200. There can be many configuration quantities and setting methods of the crawling mechanism 120. For example, when the cover 110 includes two beams 111 respectively arranged at the front and rear ends of the car body 200, and the car body 200 includes two crossbars 210 respectively corresponding to the two beams 111, the crawling mechanism 120 can be one, and the crawling mechanism 120 can be corresponding to any one of the two beams 111; or, the crawling mechanism 120 can be two, and the two crawling mechanisms 120 can be respectively arranged corresponding to the two beams 111. The present application does not limit the configuration quantity and setting method of the crawling mechanism 120.

[0111] Reference Fig.21 and Fig.24 As shown, when there are two crawling mechanisms 120, and the two crawling mechanisms 120 are respectively arranged on the two horizontal bars 120, in order to ensure the synchronization of the movement process of the two crawling mechanisms 120. Further, the cover body 110 in the present application may also include a synchronization shaft 114 respectively connected to the two crawling mechanisms 120, and the end of the transmission shaft 122 in the crawling mechanism 120 is provided with a toothed portion 1221, and the end of the synchronization shaft 114 is provided with a matching portion 1141, and the toothed portion 1221 is meshed with the matching portion 1141 to achieve synchronous transmission between the two crawling mechanisms 120.

[0112] It should be noted that although there are many different synchronous transmission structures in the prior art, such as synchronous belt transmission, universal joint transmission, etc. However, due to the limited load capacity, short service life, relatively low transmission efficiency and precision of synchronous belt transmission; and due to the characteristics of the universal joint itself, when the driving shaft rotates at a constant angular velocity, the angular velocity of the driven shaft will change periodically within a certain range, resulting in additional dynamic loads and making the transmission unstable. It can be seen that the above-mentioned synchronous transmission structure, although it can achieve synchronous transmission between the two crawling mechanisms 120, has certain defects in the transmission effect. Based on this, the present application preferably adopts a synchronous gear transmission structure, which has higher transmission precision, better synchronization and stability, and stronger load-bearing capacity, so that it can well adapt to the movement process of the compartment cover 100 relative to the compartment body 200.

[0113] Regarding the specific structure of the toothed portion 1221 and the matching portion 1141, the present application may have a variety of different implementations:

[0114] In one embodiment, referring to Figure 21-23 As shown, the toothed portion 1221 is an external tooth formed on the surface of the transmission shaft 122 , and the matching portion 1141 is an internal tooth formed on the end of the synchronization shaft 114 .

[0115] This configuration, on the one hand, can make the fit between the transmission shaft 122 and the synchronization shaft 114 more compact, save space, and be suitable for space-constrained application scenarios; on the other hand, the meshing of the inner teeth and the outer teeth can provide efficient power transmission, because their tooth surface contact area is relatively large, which can better distribute the load. In addition, due to the large tooth surface contact area of ​​the inner teeth and the outer teeth, the synchronous transmission structure has a strong load-bearing capacity and can withstand a large load. In addition, the fit of the inner teeth and the outer teeth can achieve a relatively smooth transmission, reduce vibration and impact during operation, improve the smoothness of the transmission, and significantly reduce the noise generated during the transmission process, providing a more comfortable working environment.

[0116] In another embodiment, referring to Fig.24 As shown, a driving wheel 1222 is provided at the end of one transmission shaft 122, a driven wheel 1223 is provided at the end of the other transmission shaft 122, and transmission wheels 1142 are provided at both ends of the synchronization shaft 114. The meshing portion 1221 is a driving tooth and a driven tooth formed on the surface of the driving wheel 1222 and the driven wheel 1223, and the matching portion 1141 is a transmission tooth formed on the surface of the transmission wheel 1142.

[0117] In this configuration, the driving wheel and the driven wheel can maintain synchronous operation by accurately calculating the gear ratio of each gear, ensuring the accuracy of the synchronous transmission structure. In addition, this structure is conducive to reducing the slip between the gears, improving the transmission efficiency and reducing energy loss.

[0118] In addition, when the synchronous transmission structure adopts a method of matching a driving wheel, a driven wheel and a transmission wheel, the number of configurations of the synchronous shaft 114 can be flexibly adjusted to further improve the synchronous transmission effect between the two crawling mechanisms 120.

[0119] Exemplarily, the synchronization shaft 114 is configured as two, and the two synchronization shafts 114 are rotationally connected to the two crawling mechanisms 120 (specifically, to the two crawling seats 121), and the transmission teeth at both ends of the two synchronization shafts 114 are respectively meshed with the driving teeth and the driven teeth.

[0120] This arrangement can further enhance the stability and reliability of the synchronous transmission structure, share the force during the transmission process, reduce the load of a single synchronous shaft 114, and improve the durability of the entire truck tarpaulin system.

[0121] It is understandable that the roller 126, as a component directly in contact with the groove wall of the guide groove 211, can play a certain guiding role on the car cover 100 during the movement of the car cover 100 relative to the car body 200. On the one hand, when the groove wall of the guide groove 211 is a plane, the roller 126 can be a cylindrical roller; or, when the groove wall of the guide groove 211 is an arc surface, the roller 126 can be an arc roller; when the groove wall of the guide groove 211 is a wedge surface, the roller 126 can be a wedge roller; when the groove wall of the guide groove 211 is a V-shaped surface, the roller 126 can be an inverted V-shaped roller. The present application does not limit the specific structure of the roller 126 and the guide groove 211.

[0122] On the other hand, in order to effectively reduce the friction between the box cover 100 and the box body 200 during the movement of the box cover 100, make the relative movement process of the two smoother, and reduce the noise generated during the relative movement of the two. The present application can reduce the friction between the box cover 100 and the box body 200 by providing a lubricating layer on the surface of the roller 126, the groove wall of the guide groove 211, the cross bar 210 in the box body 200 or the cross beam 111 in the box cover 100. Among them, the lubricating layer can be formed by lubricating oil, grease, etc. coated on the surface of the above-mentioned structures, or can be formed by polytetrafluoroethylene, silicone rubber, stone mill, Teflon, etc. with a low friction coefficient used by the above-mentioned structures themselves, or can also be formed by low-friction fabrics, films, etc. set on the surface of the above-mentioned structures, and the present application does not limit this.

[0123] In addition, the present application realizes the relative movement between the compartment cover 100 and the compartment body 200 through the cooperation between the transmission member 123 and the guide member 212. Among them, the cooperation mode between the transmission member 123 and the guide member 212 can be at least one of a variety of different implementation modes such as sprocket-chain cooperation, gear-rack cooperation, lead screw-nut cooperation, pulley-belt cooperation, etc., and the present application does not limit the specific cooperation mode of the transmission member 123 and the guide member 212. In addition, the number of the transmission member 123 and the guide member 212 can be one (single transmission structure), or can be configured as two (double transmission structure); when the double transmission structure is adopted, the two transmission members 123 and the two guide members 212 are respectively cooperated to form two sets of transmission mechanisms, wherein the first set of transmission mechanisms can adopt one of the above-mentioned transmission modes, and the second set of transmission mechanisms can have the same transmission direction as the first set of transmission mechanisms, or can have a different transmission mode from the first set of transmission mechanisms, and the present application does not limit this.

[0124] When there are two guide members 212, the arrangement of the two guide members 212 on the crossbar 210 can refer to the following two specific examples:

[0125] Example 1

[0126] Two guide members 212 are arranged at intervals on both sides of the top surface of the horizontal bar 210, and the guide groove 211 passes through the top surface of the horizontal bar 210 and is formed inside the horizontal bar 210, and the guide groove 211 is located between the two guide members 212. In this example, the guide members 212 are arranged on the top surface of the horizontal bar 210, which can help to optimize the layout of various components arranged on the horizontal bar 210 to a certain extent, and help to miniaturize the volume of the device.

[0127] Example 2

[0128] The two side walls of the crossbar 210 extend outward to form a support portion (not shown in the figure), and two guide members 212 are respectively arranged on the support portion. The guide groove 211 passes through the top surface of the crossbar 210 and is formed inside the crossbar 210, and the guide groove 211 is located between the two guide members 212. Among them, the support portion can be a support plate, a support tube, etc., and the present application does not limit the structure of the support portion. In this example, by setting the support portion, the support effect of the guide member 212 can be improved, thereby facilitating the improvement of the stability of the transmission mechanism.

[0129] In some embodiments, continue to refer to Fig.12 As shown, the crawling mechanism 120 may further include a pair of guide rollers 127 rotatably connected to the crawling seat 121, and the pair of guide rollers 127 are located on both sides of the transmission member 123. Optionally, the two guide rollers 127 may be located on the left and right sides of the transmission member 123 in the horizontal direction; or, the two guide rollers 127 may also be located on the upper and lower sides of the transmission member 123 in the vertical direction.

[0130] Among them, the guide roller 127 can not only play a certain guiding role in the process of the box cover 100 moving relative to the box body 200, so that the box cover 100 can move more accurately along the contour of the cross bar 210; and when the two guide rollers 127 are arranged in the horizontal direction, the two guide rollers 127 can contact the guide member 212 or the top surface of the cross bar 210 during the flipping process of the box cover 100; when the two guide rollers 127 are arranged in the vertical direction, at least one of the two guide rollers 127 can contact the bottom surface or the top surface of the cross bar 210 during the flipping process of the box cover 100, so that the flipping process of the box cover 100 is smoother, so as to further reduce the impact that the box cover 100 may have on the box body 200. It can be understood that the structure of the guide roller 127 can be the same as that of the roller 126, or it can be different, and the present application has no limitation on this.

[0131] Furthermore, a gap (not marked in the figure) is formed between the pair of guide rollers 127 , and the gap is used to limit the rotation radius of the connecting plate 124 relative to the transmission shaft 122 .

[0132] Since the upper and lower parts of the connecting plate 124 are connected to the transmission shaft 122 and the roller 126 respectively, the friction force generated between the roller 126 and the guide groove 211, and the driving force generated by the transmission member 123 on the guide member 212, are in opposite directions, and during the movement of the box cover 100 along the contour of the box body 200, this connection structure is likely to cause a certain degree of deviation of the connecting plate 124 relative to the crawling seat 121. At this time, if the self-deflection of the connecting plate 124 is not limited by the guide roller 127, it is likely to cause interference between the roller 126 and the guide groove 211, thereby hindering the normal movement of the crawling mechanism 120, and further resulting in the failure of the relative movement between the box cover 100 and the box body.

[0133] In view of this, the present application limits the rotation radius of the connecting plate 124 relative to the transmission shaft 122 through the gap formed between the pair of guide rollers 127, thereby ensuring the smooth operation of the crawling mechanism 120, and further achieving the stability of the relative movement between the cover 100 and the body 200. The specific size of the gap between the two guide rollers 127 can be reasonably set according to the size of the connecting plate 124, and the present application does not limit it.

[0134] In some scenarios where the top of the compartment does not need to be fully opened, or in some scenarios where the space is relatively small, the crawling mechanism 120 is provided to achieve the full opening of the compartment of the truck. This method is likely to be limited by the cargo loading and unloading space and cannot be implemented. Based on this, the present application provides a folding mechanism 130 on the compartment cover 100, so that the compartment cover 100 itself can be opened and closed, so that the compartment of the truck can have a semi-opening mode in addition to a fully open mode, thereby further expanding the applicability of the compartment and making it applicable to various complex cargo loading and unloading scenarios.

[0135] Specifically, refer to Fig.13 As shown, the cover body 110 includes a cross beam 111 arranged parallel to the top of the cross bar 210 and a pair of side beams 112 vertically connected to the cross beam 111, and a folding mechanism 130 respectively connected to the pair of side beams 112, and a crawling mechanism 120 is arranged at the end of the side beam 112; driven by the folding mechanism 130 and the crawling mechanism 120, the pair of side beams 112 can move toward or away from each other along the extension direction of the cross beam 111 to realize the opening and closing of the top of the compartment cover 100.

[0136] In this embodiment, there can be one crawling mechanism 120, which is arranged at one end of a side beam 112, and the other end of the side beam 112 can be only provided with a transmission member 123 (such as a sprocket, etc.) that matches the guide member 212 (such as a chain, etc.), and the two ends of the other side beam 112 can also be respectively provided with only the transmission member 123; in addition, there can be two crawling mechanisms 120, and the two crawling mechanisms 120 can be respectively arranged at one end of a pair of side beams 112 located on the same side, and the other ends of the pair of side beams 112 can be respectively provided with only the transmission member 123; or, there can be four crawling mechanisms 120, and the four crawling mechanisms 120 can be respectively provided at the two ends of a pair of side beams 112.

[0137] It should be noted that, although the present application does not limit the specific structure of the box cover 100, in order to realize the top opening and closing of the box cover 100 itself, in the above embodiment, the cross beam 111 or the support beam in the box cover 100 is eliminated, so that the two side beams 112 of the box cover 100 can move relative to each other. Fig.10 and Fig.11 As shown, the car cover 100 may include a pair of cross beams 111 and a pair of side beams 112 connected to the pair of cross beams 111. By arranging slide rails (not shown in the figure) on the pair of cross beams 111, the pair of side beams 112 are respectively matched with the slide rails to achieve a sliding connection between the pair of cross beams 111 and the pair of side beams 112, thereby also being able to achieve relative movement of the beams 112 on both sides of the car cover 100.

[0138] Through the special setting of the folding mechanism 130 and the above-mentioned compartment cover 100 structure, the present application can make the two side beams 112 of the compartment cover 100 move relative to each other under the drive of the folding mechanism 130 and the crawling mechanism 120, thereby realizing the top opening and closing of the compartment cover 100, and further expanding the opening method of the compartment, so that the compartment can adapt to different scenarios.

[0139] In addition, there are also many different implementation methods for the specific driving method of the two side beams 112, specifically:

[0140] In the first implementation, refer to Fig.14 As shown, the folding mechanism 130 includes a first folding arm 131 and a second folding arm 132 which are hinged to each other, and a folding driving member (not shown in the figure) which is respectively connected to the first folding arm 131 and the second folding arm 132 by transmission. A pair of side beams 112 are both provided with a slide groove 113, and the end of the first folding arm 131 and the end of the second folding arm 132 are respectively matched with the slide groove 113. Under the drive of the folding driving member, the first folding arm 131 and the second folding arm 132 respectively move along the slide groove 113 to make the two move closer or separate, and realize the pair of side beams 112 to move toward or away from each other.

[0141] In this implementation, the folding drive component can be a driving motor, a hydraulic cylinder, a pneumatic cylinder, etc., and the transmission connection method between the folding drive component and the first folding arm 131 and the second folding arm 132 can be gear transmission, chain transmission, belt transmission, etc., and this application does not limit this.

[0142] Preferably, continue to refer to Fig.14 As shown, the end of the first folding arm 131 and the end of the second folding arm 132 are respectively provided with a first slider 133 and a second slider 134. Through the cooperation between the first slider 133, the second slider 134 and the slide groove 113, a sliding connection between the first folding arm 131, the second folding arm 132 and the side beam 112 can be achieved.

[0143] In the second implementation, continue to refer to Fig.14 As shown, the folding mechanism 130 includes a first folding arm 131 and a second folding arm 132 which are hinged to each other, and a connecting rod assembly 135 which is slidably connected to the first folding arm 131 and the second folding arm 132 respectively; a pair of side beams 112 are provided with a slide groove 113, and the end of the first folding arm 131 and the end of the second folding arm 132 are respectively matched with the slide groove 113. Further, the first end of the transmission shaft 122 in the crawling mechanism 120 is connected to the first driving member 125, and the second end is connected to the connecting rod assembly 135, and under the drive of the first driving member 125 and the transmission of the connecting rod assembly 135, the first folding arm 131 and the second folding arm 132 respectively move along the slide groove 113, so that the two are close to or separated, and the pair of side beams 112 move toward or away from each other.

[0144] In this implementation, the first driving member 125 can be a driving motor, a hydraulic pump, a pneumatic pump, etc. In addition, the connecting rod assembly 135 can include a first connecting rod 136 and a second connecting rod 137 that are hinged to each other, and a telescopic rod 138 connected to the hinge of the first connecting rod 136 and the second connecting rod 137. Among them, the first folding arm 131 is provided with a first track groove 1311, and the end of the first connecting rod 136 is slidably matched with the first track groove 1311, the second folding arm 132 is provided with a second track groove 1321, and the end of the second connecting rod 137 is slidably matched with the second track groove 1321, and the telescopic rod 138 is universally connected to the second end of the transmission shaft 122, and can be extended and retracted with the rotation of the transmission shaft 122.

[0145] It should be noted that the telescopic rod 138 and the transmission shaft 122 are connected in a universal joint, which can avoid the problem of unsmooth transmission process when the rotation axes of the two are inconsistent to a certain extent, thereby facilitating the stable transmission effect of the connecting rod assembly 135. Exemplarily, the telescopic rod 138 and the transmission shaft 122 can be connected through a universal ball or a universal joint, and the present application does not limit the specific structure of the universal joint between the two.

[0146] Optionally, the end of the first connecting rod 136 and the end of the second connecting rod 137 are respectively provided with a first guide block (not shown in the figure) and a second guide block (not shown in the figure). Through the cooperation between the first guide block and the first track groove 1311, and the second guide block and the second track groove 1321, a sliding connection between the first connecting rod 136 and the first folding arm 131, and between the second connecting rod 137 and the second folding arm 132 can be realized.

[0147] Further, continue to refer to Fig.14 As shown, the telescopic rod 138 may include a spiral support rod 1381 and a sleeve 1382 that cooperates with the spiral support rod 1381. An internal thread is provided inside the sleeve 1382. Through the spiral cooperation between the external thread on the spiral support rod 1381 and the internal thread in the sleeve 1382, the axial movement of the spiral support rod 1381 relative to the sleeve 1382 can be realized, that is, the telescopic movement of the telescopic rod 138 is realized.

[0148] When the folding mechanism 130 is working, first, the first driving member 125 drives the transmission shaft 122 to rotate. Since the second end of the transmission shaft 122 is connected to the connecting rod assembly 135, that is, connected to the spiral support rod 1381, the spiral support rod 1381 rotates with the rotation of the transmission shaft 122, so that the sleeve 1382 can move relative to the spiral support rod 1381, thereby driving the first connecting rod 136 and the second connecting rod 137 to rotate. Secondly, the movement of the first connecting rod 136 and the second connecting rod 137 can be transmitted to the first folding arm 131 and the second folding arm 132 through the first guide block and the second guide block, thereby realizing the relative rotation between the first folding arm 131 and the second folding arm 132; finally, the movement of the first folding arm 131 and the second folding arm 132 can be transmitted to the two side beams 112 through the first slider 133 and the second slider 134, thereby realizing the relative movement between the two side beams 112.

[0149] In other embodiments, there may be two folding mechanisms 130, and the two folding mechanisms 130 are connected by a connecting shaft (not marked in the figure). Two or more folding mechanisms 130 are connected by a connecting shaft, which can make the relative movement of the two side beams 112 in the box cover 100 have higher synchronization. Especially when the size of the box cover 100 is long, this arrangement can avoid the situation that the box cover 100 cannot be folded into place due to the inability of the two side beams 112 to move synchronously, thereby improving the folding effect of the box cover 100.

[0150] In addition, it should be noted that the folding directions of the multiple different folding mechanisms 130 can be different or the same. For example, when the folding direction of the first folding mechanism 130 is forward along the extension direction of the side beam 112, the folding direction of the second folding mechanism 130 can be backward along the extension direction of the side beam 112, and the first folding mechanism 130 and the second folding mechanism 130 can also be respectively connected to the two crawling mechanisms 120 arranged on the two cross beams 111 of the compartment cover 100, and the first folding mechanism 130 and the second folding mechanism 130 are driven by the two first driving members 125 in the two crawling mechanisms 120; or, the folding direction of the second folding mechanism 130 can also be forward along the extension direction of the side beam 112. The present application does not limit the folding directions between different folding mechanisms 130, and those skilled in the art can reasonably adjust the folding directions of different folding structures according to different product design requirements.

[0151] In some embodiments, reference Figure 4 and Fig.15As shown, the body 200 also has an anti-deformation assembly 250 connected to the crossbar 210 and the pile 220 respectively, and the anti-deformation assembly 250 includes a fixed frame 251, a mounting seat 252 and a sliding member 253. Among them, the fixed frame 251 has a through buffer space (not marked in the figure), the mounting seat 252 matches the fixed frame 251, and the mounting seat 252 has a mounting groove (not marked in the figure) opening toward the fixed frame 251; the two ends of the sliding member 253 can pass through the buffer space and are respectively connected to the side walls of the mounting groove, and in response to the deformation of the body 200, the sliding member 253 can slide in the buffer space.

[0152] When the body 200 is loaded with a lot of goods, or the body 200 is impacted by external forces, the extrusion and impact of the goods or external forces on the piles 220 or the crossbar 210 will cause the body 200 to deform, which is commonly known as expansion. The present application eliminates the deformation of the body 200 caused by the extrusion and impact to a certain extent by setting the anti-deformation component 250, thereby ensuring the stability of the carriage.

[0153] It can be understood that the buffer space formed in the fixed frame 251 mainly limits the relative displacement between the fixed frame 251 and the mounting seat 252 by cooperating with the sliding member 253. In addition, the shape and structure of the buffer space can be adjusted according to the sliding member 253 of different structures. For example, when the sliding member 253 is a roller, the buffer space can be an arc-shaped rolling groove; when the sliding member 253 is a slider, the buffer space can be a rectangular slide groove that matches the slider; or, the sliding member 253 can be a slider made of a material with a low friction coefficient (such as nylon, polyethylene, etc.), and the buffer space can be a slide rail that matches the shape of the slider. In view of the fact that the sliding member 253 and the buffer space can be implemented by a variety of different structures by those skilled in the art, the present application does not limit the specific structure of the buffer space and the sliding member 253.

[0154] In some embodiments, the fixing frame 251 and the curved section 2102 are integrally formed, and the mounting seat 252 and the stake 220 are integrally formed. This integral forming method is conducive to improving the connection strength between the fixing frame 251 and the horizontal bar 210, and between the mounting seat 252 and the stake 220, so that the relative movement process between the horizontal bar 210 and the stake 220 is more stable.

[0155] In other embodiments, the fixing frame 251 is provided with a fixing hole (not shown in the figure), and one of the bottom surface of the curved section 2102 and the top surface of the stake 220 is provided with an assembly hole (not shown in the figure); the mounting seat 252 is provided with a mounting hole (not shown in the figure), and the other of the bottom surface of the curved section 2102 and the top surface of the stake 220 is provided with a connection hole (not shown in the figure). In addition, the anti-deformation component 250 also includes a fastener (not shown in the figure), which can pass through the fixing hole to cooperate with the assembly hole, and pass through the mounting hole to cooperate with the connection hole, so as to respectively realize the detachable connection between the fixing frame 251 and the crossbar 210, and the mounting seat 252 and the stake 220. Optionally, the fixing hole, the assembly hole, the mounting hole and the connection hole can all be threaded holes, and the fastener can be a screw, a bolt or a stud that cooperates with the threaded hole, etc., and the present application does not limit the specific structure of the above-mentioned parts.

[0156] In this embodiment, the above-mentioned structure is used to realize a detachable connection between the parts in the anti-deformation component 250, which is convenient for users to maintain the anti-deformation component 250 at a later stage, and also enables the compartment 200 to adapt to anti-deformation components 250 of different specifications and sizes, which is beneficial to user experience.

[0157] In a specific example, referring to Fig.15 As shown, the sliding member 253 is a sliding roller, which includes a roller shaft 2531 and a roller body 2532. Both ends of the roller shaft 2531 are fixedly connected to the side walls of the mounting seat 252. The roller body 2532 is sleeved on the outer side of the roller shaft 2531, and the edge of the roller body 2532 has a pair of stoppers 2533 extending along its radial direction, and the distance between the pair of stoppers 2533 is not less than the width of the fixed frame 251. The setting of the stoppers 2533 can limit the axial displacement of the sliding member 253, prevent the sliding member 253 and the mounting seat 252 from axially shaking relative to the fixed frame 251, thereby further facilitating the improvement of the stability of the anti-deformation assembly 250.

[0158] Preferably, there are two sliding rollers, which are respectively arranged on both sides of the center line of the pile 220. When there are multiple sliding rollers, on the one hand, the relative movement between the fixed frame 251 and the mounting seat 252 can be smoother, and on the other hand, the relative displacement distance between the fixed frame 251 and the mounting seat 252 can be limited to a certain extent, thereby preventing the center line of the crossbar 210 from excessively deviating from the center line of the pile 220, so as to improve the stability and structural strength of the body 200 during deformation.

[0159] Furthermore, the ratio of the length of the fixed frame 251 to the width of the curved section 2102 is between 1.5 and 1. Although the present application does not specifically limit the size of each component in the anti-deformation assembly 250, in order to simultaneously take into account the stability and deformation limit of the structure of the body 200, by limiting the size ratio between the fixed frame 251 and the curved section 2102 of the crossbar 210, the buffer space can meet the deformation requirements and structural stability of the body 200. Among them, the width of the curved section 2102 and the length of the fixed frame 251 both refer to the distance along the length direction of the car body.

[0160] Optionally, there are multiple anti-deformation components 250, and the multiple anti-deformation components 250 respectively correspond to the multiple piles 220 in the body 200. The provision of multiple anti-deformation components 250 can improve the deformation displacement of the body 200 to a certain extent.

[0161] In other embodiments, the anti-deformation assembly 250 may further include a limiter (not shown in the figure). The limiter may be a limiter pin, a limiter column, a limiter baffle, a limiter block, a limiter bolt, or the like disposed on the mounting seat 252. By disposing the limiter, the relative positions of the fixing frame 251 and the mounting seat 252 in the anti-deformation assembly 250 can be fixed, which is beneficial to improving the structural stability of the anti-deformation assembly 250, thereby avoiding to a certain extent the shaking of the vehicle body 200 due to the inability to relatively fix the fixing frame 251 and the mounting seat 252 during the driving of the truck.

[0162] In some embodiments, reference Fig.16 and Fig.17 As shown, the truck compartment also includes a cloth rolling mechanism 400, and the cloth rolling mechanism 400 includes a tarpaulin 410, a cloth rolling rod 420 and a second driving member 430. The tarpaulin 410 is covered on the outside of the compartment 200, the cloth rolling rod 420 is connected to the edge of the tarpaulin 410, and the second driving member 430 is connected to the end of the cloth rolling rod 420. Driven by the second driving member 430, the tarpaulin 410 can be extended and retracted to the outside of the cloth rolling rod 420 along the circumference of the cloth rolling rod 420, and the cloth rolling rod 420 can move along the outer contour of the compartment 200.

[0163] In some scenarios, the compartment cover 100 can be configured as a hardtop structure or a softtop structure. When the compartment cover 100 is a hardtop structure, for example, a steel plate, an alloy plate or other structure can be set in the frame formed by the cross beam 111 and the side beam 112; when the compartment cover 100 is a softtop, for example, a tarpaulin, felt, thermal insulation cotton, thermal insulation blanket or other structure can be directly set in the frame formed by the cross beam 111 and the side beam 112. In addition, the tarpaulin 410 itself can also be compounded into a multi-layer structure, for example, it can be a tarpaulin with thermal insulation and heating functions composed of a tarpaulin body, a heating layer and a thermal insulation layer, wherein the heating layer can be a heating wire, a heating rod, etc.; the thermal insulation layer can be thermal insulation cotton, thermal insulation foam, etc.; and the tarpaulin 410 in the present application can be a split structure or an integral structure. When the tarpaulin 410 is a split structure, it may include a main tarpaulin for covering the top and sides of the compartment 200, a front tarpaulin for covering the front of the compartment 200, and a rear tarpaulin for covering the rear of the compartment 200; when the tarpaulin is an integral structure, it can cover the top, sides, front and rear of the compartment 200 respectively. The present application does not limit the specific structures of the compartment cover 100 and the tarpaulin 410.

[0164] Preferably, the cloth rolling rod 420 and the edge of the tarpaulin 410 can be connected by sewing, bonding, etc. Under the driving action of the second driving member 430, the cloth rolling rod 420 rotates itself to realize the rolling or unfolding of the tarpaulin 410, and in the process of rolling or unfolding the tarpaulin 410, the cloth rolling rod 420 can move along the contours of the car cover 100 and the car body 200. The second driving member 430 can be a motor, a hydraulic pump, a pneumatic pump, a handle or a crank, etc.

[0165] There may be two cloth rolling rods 420 in the cloth rolling mechanism 400, and the two cloth rolling rods 420 are respectively located on both sides of the body 200, so that the tarpaulin 410 can be deployed and retracted from both sides. Accordingly, there may also be two second driving members 430 connected to the cloth rolling rods 420.

[0166] It should be noted that the cloth rolling rod 420 in the cloth rolling mechanism 400 is usually set on the side of the body 200, so the tarpaulin 410 connected to the cloth rolling rod 420 can mainly cover the top and side of the truck compartment. In order to enable the tarpaulin 410 to also cover the rear of the truck compartment, in a preferred embodiment of the present application, the truck compartment may also include an elastic cloth tightening rod (not shown in the figure) arranged on the side wall of the horizontal bar 210 at the rear of the truck compartment and a tarpaulin 410 connected to the elastic cloth tightening rod, wherein a resilient member (such as a coil spring, etc.) is arranged in the elastic cloth tightening rod; when the user pulls the tarpaulin 410 downward, the elastic cloth tightening rod rotates itself and causes the resilient member to store elastic potential energy; when the user releases the tarpaulin 410, the resilient member releases the elastic potential energy, and the elastic cloth tightening rod drives the tarpaulin 410 to move upward, so as to store the tarpaulin 410 at the rear of the truck compartment.

[0167] Accordingly, in order to cover the front of the truck compartment, the elastic cloth tightening rod disposed at the rear of the compartment can also be disposed at the front of the compartment. In addition, in another embodiment, for the tarpaulin 410 covering the side of the compartment, the length of the side tarpaulin 410 can be appropriately extended so that at least a portion of its edge is located outside the tarpaulin frame or tarpaulin cover, and a number of through holes are opened on the edge of the portion, and then tensioning members such as steel wire ropes and straps are passed through the through holes. After being tightened, the exposed edge of the tarpaulin 410 can cover the front of the compartment and tighten and fix the entire tarpaulin 410.

[0168] In addition, when the tarpaulin 410 is rolled up, the tarpaulin 410 can be rolled up by rotating the rolling rod 420. In other embodiments, the compartment cover 100 may further include a slide rail (not shown) disposed at the bottom of the side beam 112; and when the tarpaulin 410 adopts a split structure, it may include a side tarpaulin for covering the side of the compartment 200 and a top tarpaulin for covering the top of the compartment 200. The top tarpaulin may be directly fixedly connected to the compartment cover 100, and a sliding member (not shown) may be disposed at the top edge of the side tarpaulin. Through the sliding cooperation between the sliding member and the slide rail, the side tarpaulin can be moved to the front or rear of the compartment 200, thereby realizing the opening and closing of the tarpaulin 410, which is convenient for the side loading and unloading of goods. Optionally, the sliding member may be a slider, a pulley, etc.

[0169] Furthermore, a three-head connector (not shown) may be provided at the end of the cloth rolling rod 420. Exemplarily, the three-head connector may be connected to the cloth rolling rod 420, the second driving member 430 and the handle respectively. When the second driving member 430 (such as a motor, etc.) fails or lacks power, the user may drive the cloth rolling rod 420 to move by operating the handle. The provision of the three-head connector can expand the driving mode of the cloth rolling rod 420, that is, it can realize the automatic driving of the cloth rolling rod 420, and it can also realize the manual driving of the cloth rolling rod 420, thereby improving the adaptability of the cloth rolling rod 420 mechanism in different scenarios.

[0170] Further, refer to Fig.16 and Fig.17 As shown, the cloth rolling mechanism 400 may also include a guide rod assembly 440 that is rotatably connected to the crawling seat 121 and the cloth rolling rod 420, respectively. Specifically, the guide rod assembly 440 includes a first guide rod 441 and a second guide rod 442 that are connected to each other, wherein the first end of the first guide rod 441 is connected to the crawling seat 121, and the second end is connected to the first end of the second guide rod 442, and the second end of the second guide rod 442 is connected to the cloth rolling rod 420. The connection between the first guide rod 441, the second guide rod 442, the crawling seat 121 and the cloth rolling rod 420 may be rotatably connected via a rotating shaft, or may be universally connected via a universal ball. In addition, the first guide rod 441 and the second guide rod 442 may both be smooth sleeves made of stainless steel, and the first guide rod 441 and the second guide rod 442 may also be connected in a mutually nested manner, and the present application does not limit the specific connection between the above structures.

[0171] The setting of the guide rod assembly 440 can guide and limit the movement path of the cloth rolling rod 420, thereby preventing the cloth rolling rod 420 from deviating from the outer contours of the compartment cover 100 and the compartment body 200 during movement, thereby ensuring the smooth unfolding and retracting process of the tarpaulin 410.

[0172] In some embodiments, reference Figure 18-Figure 20 As shown, the body 200 further includes a bottom bar 260 horizontally connected to the bottom of the cross bar 210; the truck body further includes a cloth tightening mechanism 500 disposed at the bottom of the body 200, and the cloth tightening mechanism 500 includes a cloth tightening hook 510 and a floating seat 520 located below the cloth tightening hook 510, the cloth tightening hook 510 is provided with a limiting groove, and the limiting groove has an opening vertically downward, and the floating seat 520 is connected to the bottom bar 260. Wherein, under the drive of the second driving member 430, the cloth rolling rod 420 moves to the cloth tightening hook 510, and can be rolled into the limiting groove through the opening.

[0173] It should be noted that the cloth-tightening hook can be an arc-shaped hook with an opening or a rectangular hook with an opening; correspondingly, the limiting groove can be an arc-shaped groove or a rectangular groove, and the present application does not limit the specific structure of the cloth-rolling hook and the limiting groove. In addition, the cloth-rolling rod 420 is used to expand and retract the long side of the tarpaulin 410 during the rotation process, and the cloth-rolling rod 420 can be a rectangular rod, a square rod, a round rod or a prismatic rod, etc., and the present application does not limit the specific structure of the cloth-rolling rod 420.

[0174] Regarding the specific working principle of the cloth tightening mechanism 500, please refer to the following description:

[0175] For example, when the cloth rolling rod 420 rotates clockwise, the long side of the tarpaulin 410 can be continuously wound around the outside of the cloth rolling rod 420, and the cloth rolling rod 420 can move upward along the contour of the car body, thereby completing the rolling up of the long side of the tarpaulin 410. When the cloth rolling rod 420 rotates counterclockwise, the long side of the tarpaulin 410 can be continuously wound out from the outside of the cloth rolling rod 420, and the cloth rolling rod 420 can move downward along the contour of the car body, thereby completing the flattening of the long side of the tarpaulin 410. In addition, when the cloth rolling rod 420 moves to the position of the cloth tightening mechanism 500, the cloth rolling rod 420 can be guided by the cloth rolling hook and rolled into the limiting groove from the opening. At this time, the cloth rolling rod 420 continues to rotate under the drive of the second driving member 430, such as driving the cloth rolling rod 420 to continue to rotate half a circle or a circle, so that the cloth rolling rod 420 is tightened in the limiting groove.

[0176] Further, refer to Fig.19 and Fig. 20 As shown, the cloth tightening hook 510 may include a first tensioning member 511 and a second tensioning member 512 located outside the first tensioning member 511; the floating seat 520 includes a seat body 521 and a tension spring 522 arranged on the seat body 521, the first tensioning member 511 is connected to the seat body 521 through the tension spring 522, the second tensioning member 512 is fixedly connected to the seat body 521, and there is a floating gap between the first tensioning member 511 and the second tensioning member 512.

[0177] During the cooperation between the cloth rolling rod 420 and the cloth tightening hook 510, the cloth rolling rod 420 first contacts the first tensioning member 511, and the first tensioning member 511 can move upward relative to the seat body 521 in response to the squeezing of the cloth rolling rod 420, thereby stretching the tension spring 522, and the floating gap between the first tensioning member 511 and the second tensioning member 512 is reduced, so as to finally achieve the tightening of the cloth rolling rod 420 and the tarpaulin 410 by the cloth tightening hook 510.

[0178] When the cloth rolling rod 420 is separated from the cloth tightening hook 510, the cloth rolling rod 420 is separated from the first tensioning member 511, and the first tensioning member 511 moves downward relative to the seat body 521 under the tension of the tension spring 522, thereby increasing the floating gap between the first tensioning member 511 and the second tensioning member 512, and the cloth tightening hook 510 returns to its initial position.

[0179] It should be noted that, since the long side of the tarpaulin 410 is relatively long, the length of the cloth rolling rod 420 is also relatively long. In fact, in the process of unfolding and retracting the long side of the tarpaulin 410 by the cloth rolling rod 420, the cloth rolling rod 420 may not always remain parallel to the length direction of the car body 200. At this time, in order to ensure that the long side of the tarpaulin 410 is tightened everywhere, preferably, a plurality of cloth tightening mechanisms 500 can be evenly distributed along the length direction of the car body 200. In addition, in order to ensure that each cloth tightening mechanism 500 can tighten the cloth rolling rod 420 in an inclined state, and to avoid interference between each cloth tightening mechanism 500. The present application provides a certain buffer margin for the tightening process of the cloth tightening hook 510 by setting a floating gap in the cloth tightening hook 510, thereby improving the tightening effect of the cloth rolling rod 420 in different inclined states.

[0180] In some embodiments, reference Fig. 20 As shown, the cloth tightening mechanism 500 may further include a buckle lock 530 hinged to the seat body 521, the buckle lock 530 is located on the inner side of the first tensioning member 511, and when the cloth rolling rod 420 is rolled into the limiting groove, the buckle lock 530 can be switched from an unlocked state to a locked state.

[0181] By switching the buckle lock 530 between the unlocked state and the locked state, the buckle lock 530 can block the opening of the cloth tightening hook 510, thereby preventing the cloth rolling rod 420 from escaping from the limiting groove, thereby improving the reliability of the cloth tightening effect of the cloth tightening hook 510.

[0182] Specifically, continue to refer to Fig. 20 As shown, the buckle lock 530 includes a connected bending section 531 and a stop section 532, the bending section 531 is adapted to the inner contour of the first tensioning member 511, and during the switching process between the unlocked state and the locked state, the stop section 532 can contact the edge of the first tensioning member 511 to seal the opening.

[0183] When the cloth rolling rod 420 enters the limiting groove along the opening, the cloth rolling rod 420 can first press against the bending section 531, so that the buckle 530 rotates. At this time, the stop section 532 contacts the edge of the first tensioning member 511 as the bending section 531 rotates, and the buckle 530 is in a locked state, thereby achieving the blocking of the opening; when the buckle 530 needs to be unlocked, the staff can press the stop section 532 to rotate the buckle 530 toward the inside of the first tensioning member 511, so that the stop section 532 is separated from the first tensioning member 511, and the buckle 530 is in an unlocked state, and the cloth rolling rod 420 can escape from the gap between the stop section 532 and the first tensioning member 511.

[0184] Preferably, a torsion spring (not shown) may be provided at the hinge between the buckle lock 530 and the seat body 521. The provision of the torsion spring can, on the one hand, improve the locking degree of the buckle lock 530 on the cloth rolling rod 420 in the locked state, and on the other hand, the elastic force provided by the torsion spring is conducive to resetting the buckle lock 530 from the unlocked state to the locked state.

[0185] Further, continue to refer to Fig. 20 As shown, the cloth tightening mechanism 500 may further include a third driving member 540 disposed below the floating seat 520, and the third driving member 540 is connected to the first tensioning member 511 to pull the first tensioning member 511. The third driving member 540 may be a pneumatic valve, a hydraulic valve, a driving motor, a hydraulic motor or a pull rope, etc., and the present application does not limit the specific structure of the third driving member 540.

[0186] In some embodiments, the first tensioning member 511 and / or the second tensioning member 512 are provided with a guide pulley (not shown in the figure), and the cloth rolling rod 420 is rolled into the limiting groove along the guide arc surface of the guide pulley.

[0187] On the one hand, the guide pulley guides the cloth rolling rod 420 to be rolled into the limiting groove, and the cloth rolling rod 420 is rolled into the limiting groove along the guide arc surface of the guide pulley, so that the movement of the cloth rolling rod 420 is smoother. On the other hand, the guide pulley can relieve the tension of the first tension member 511 and the second tension member 512 on the tarpaulin 410 to prevent the tarpaulin 410 from being torn.

[0188] In some embodiments, reference Fig.25As shown, the box body also has a tensioner 270 arranged on the horizontal bar, and the tensioner 270 includes a connecting sleeve 271, a fixing seat 272 and an adjusting screw 273. Among them, the connecting sleeve 271 is connected to the ends of the guide member 212 respectively, the fixing seat 272 is located below the connecting sleeve 271, and the fixing seat 272 is provided with a threaded hole (not marked in the figure); the adjusting screw 273 can pass through the threaded hole to be rotatably connected with the connecting sleeve 271, and the adjusting screw 273 cooperates with the threaded hole to adjust the distance between the connecting sleeve 271 and the fixing seat 272.

[0189] It should be noted that although the guide member 212 in the present application can be directly fixed to the surface of the crossbar 210 by welding, integral molding connection, etc. However, after the equipment has been running for a long time, the relative force generated between the transmission member 123 and the guide member 212 may affect the stability of the guide member 212. In view of this, the present application adjusts the tightness of the guide member 212 by setting the tensioner 270, so as to improve the stability and reliability of the movement process of the crawling mechanism 120 compared to the body 200. In addition, when the tensioner 270 is configured in the body 200, the guide member 212 and the crossbar 210 can be connected without welding, that is, the guide member 212 can be directly set on the surface of the crossbar 210.

[0190] Optionally, there may be multiple tensioners 270, and the multiple tensioners 270 are respectively arranged corresponding to the ends of the multiple guide members 212. This arrangement allows the user to flexibly adjust the tension of the guide member 212 so that the two have appropriate tension, thereby reducing the wear of the transmission components to a certain extent and extending the service life of the transmission components.

[0191] In the description provided herein, a large number of specific details are described. However, it is understood that embodiments of the present invention can be practiced without these specific details. Similarly, in order to simplify the present invention and help understand one or more of the various inventive aspects, in the above description of exemplary embodiments of the present invention, the various features of the embodiments of the present invention are sometimes grouped together into a single embodiment, figure, or description thereof. Wherein, the claims that follow the specific embodiment are hereby expressly incorporated into the specific embodiment, wherein each claim itself is a separate embodiment of the present invention.

[0192] It should be noted that the above embodiments illustrate the present invention rather than limit it, and that those skilled in the art may devise alternative embodiments without departing from the scope of the appended claims. In the claims, any reference symbol between brackets shall not be construed as a limitation on the claims. The word "comprising" does not exclude the presence of elements or steps not listed in the claims. The word "one" or "an" preceding an element does not exclude the presence of a plurality of such elements. The present invention may be implemented by means of hardware comprising a number of different elements and by means of a suitably programmed computer. In a unit claim enumerating a number of devices, several of these devices may be embodied by the same hardware item. The use of the words first, second, and third, etc. does not indicate any order. These words may be interpreted as names. The steps in the above embodiments, unless otherwise specified, should not be understood as limitations on the order of execution.

Claims

1. A freight car compartment, characterized in that: include: compartment cover; The box body located below the box cover has a horizontal bar and a pile vertically connected to the horizontal bar, and the horizontal bar is provided with a guide groove; The flip door adapted to the compartment comprises: The door body has a guide member on the top thereof that matches the guide groove; A rotating rod, both ends of which are rotatably connected to the door body and the pile respectively; The telescopic member has two ends which are rotatably connected to the door body and the compartment respectively, and as the telescopic member is extended and retracted, the guide member can move along the extension direction of the guide groove to realize the flipping of the door body between the side of the compartment and the top of the compartment.

2. The freight car compartment according to claim 1, characterized in that: The compartment body also includes a side bar horizontally connected to the top of the cross bar, and a push piece arranged on the side bar, and the push piece can push against the edge of the door body so that the door body can move horizontally along the guide groove.

3. The freight car compartment according to claim 2, characterized in that: The door body includes an upper frame beam, a lower frame beam located below the upper frame beam, and side frame beams respectively connected to the upper frame beam and the lower frame beam; The guide member comprises: A slide plate connected to the end of the upper frame beam; A first guide wheel disposed on the slide, the first guide wheel being capable of contacting the top wall and the bottom wall of the guide groove respectively and having a first axis perpendicular to the extending direction of the guide groove; A second guide wheel is arranged on the slide plate, the second guide wheel can contact the side wall of the guide groove and has a second axis perpendicular to the first axis.

4. The freight car compartment according to claim 3, characterized in that: A first reinforcing beam is arranged at the bottom of the upper frame beam and / or the bottom of the lower frame beam, and a second reinforcing beam is arranged at the bottom of the side bar.

5. The freight car compartment according to claim 3, characterized in that: The flip door also includes a unit door rotatably connected to the door body, and a locking member is provided at an edge of the unit door; The door body also includes a fixed beam connected to the upper frame beam and the lower frame beam respectively, and a locking member arranged on the fixed beam, and the locking member cooperates with the locking member to enable the unit door to open or close the door body.

6. The freight car compartment according to claim 1, characterized in that: A guide is also provided at the top of the horizontal bar; The compartment cover comprises: Cover body; The crawling mechanism disposed at the end of the cover body comprises: A crawling seat fixed to the cover body; A transmission shaft arranged along the center line of the crawler seat; A transmission member coaxially arranged on the outer side of the transmission shaft, the transmission member corresponding to the guide member; A connecting plate, the upper portion of which is rotatably connected to the transmission shaft, and the lower portion of which has a roller correspondingly arranged in the guide groove; A first driving member connected to an end of the transmission shaft; Wherein, under the drive of the first driving member, and through the cooperation between the roller and the guide groove, and the cooperation between the guide member and the transmission member, the cover body can move along the contour of the cross bar.

7. The freight car body according to claim 6, characterized in that: The cover body includes a crossbeam arranged parallel to and above the crossbar, a pair of side beams vertically connected to the crossbeam, and a folding mechanism respectively connected to the pair of side beams, and the crawling mechanism is arranged at the end of the side beam; Driven by the folding mechanism and the crawling mechanism, the pair of side beams can move toward or away from each other along the extension direction of the cross beam to achieve the opening and closing of the top of the compartment cover.

8. The freight car compartment according to claim 1, characterized in that: The box body also has an anti-deformation component connected to the cross bar and the pile respectively, and the anti-deformation component includes: A fixed frame having a through buffer space; A mounting seat matching the fixing frame, having a mounting groove opening toward the fixing frame; The sliding member has two ends that can pass through the buffer space and are respectively connected to the side walls of the mounting groove, and in response to the deformation of the compartment, the sliding member can slide in the buffer space.

9. The freight car compartment according to claim 1, characterized in that: The truck compartment further includes a cloth rolling mechanism, and the cloth rolling mechanism includes: A tarpaulin is arranged on the outside of the compartment; A cloth rolling rod connected to the edge of the tarpaulin; The second driving member is connected to the end of the cloth rolling rod, and under the drive of the second driving member, the tarpaulin can be expanded and retracted to the outside of the cloth rolling rod along the circumference of the cloth rolling rod, and the cloth rolling rod can move along the outer contour of the car body.

10. The freight car body according to claim 9, characterized in that: The carriage also includes a bottom bar horizontally connected to the bottom of the cross bar; The truck compartment further comprises a cloth tightening mechanism disposed at the bottom of the compartment, and the cloth tightening mechanism comprises: The cloth tightening hook is provided with a limiting groove, and the limiting groove has an opening vertically downward; A floating seat located below the cloth tightening hook, the floating seat being connected to the bottom bar; Wherein, under the drive of the second driving member, the cloth rolling rod moves to the cloth tightening hook, and can roll the cloth into the limiting groove through the opening.

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