Grain hopper car

Abstract

The application discloses a grain hopper car and belongs to the technical field of railway freight cars. The grain hopper car comprises a car body provided with a loading port; a turnover port cover is arranged on the car body in a turnover mode, the turnover port cover is matched with the loading port in position, and the turnover port cover is used for covering or exposing the loading port; a pressing mechanism comprises a connecting rod and a plurality of pressing pieces, the connecting rod is arranged on the car body in a rotating mode along a central axis, the plurality of pressing pieces are arranged on the connecting rod in an axial direction, and the moving track of the pressing pieces is matched with the covering position of the turnover port cover, so that the plurality of pressing pieces are driven to press the turnover port cover on the loading port by rotating the connecting rod. The loading port opening and closing operation of the grain hopper car is convenient and efficient.

Description

Technical Field

[0001] This application belongs to the field of railway freight car technology, and in particular relates to a grain hopper car. Background Technology

[0002] The railway grain hopper car is a type of freight car specifically designed for transporting bulk grains (such as wheat, corn, soybeans, and rice). Its funnel-shaped body structure features an unloading port located at the bottom. Once the unloading gate is opened, the grain can flow out automatically and quickly under its own weight, significantly saving manpower and time. The loading port is located at the top of the car and is equipped with a loading cover, which is kept tightly closed during transportation to effectively prevent rain, moisture, and dust, ensuring the quality and safety of the grain during long-distance transport.

[0003] Currently, the loading hatch covers of some railway hopper cars are mainly opened and closed manually. When opening and closing the loading hatch covers manually, each one needs to be operated one by one, which is inefficient and labor-intensive. Utility Model Content

[0004] This application provides a grain hopper cart, aiming to at least partially solve the technical problems of complex, inefficient, and labor-intensive manual opening and closing of the loading port cover of grain hopper carts. Therefore, One aspect of this application provides a grain hopper cart, comprising: The vehicle body is equipped with a loading port; A flip-up cover is rotatably mounted on the vehicle body, and the flip-up cover is aligned with the loading port to cover or expose the loading port. The clamping mechanism includes a connecting rod and a plurality of clamping components. The connecting rod is rotatably mounted on the vehicle body along a central axis. The plurality of clamping components are spaced apart from the connecting rod along its axial direction. The movement trajectory of the clamping components is matched with the sealing position of the flip-top cover, so that the flip-top cover is clamped to the loading port by rotating the connecting rod and driving the plurality of clamping components.

[0005] In some embodiments, the clamping mechanism further includes a gripping member connected to the linkage.

[0006] In some embodiments, the grain hopper cart further includes a locking mechanism disposed on the cart body and connected to the holding member to lock the pressing position of the connecting rod and the pressing member.

[0007] In some embodiments, the locking mechanism includes: A lock seat is provided on the vehicle body, and the lock seat has a slot, and the slot can be detachably engaged with the holding member; A latch is movably disposed on the lock base, and when the holding member is embedded in the slot, the latch blocks the opening of the slot.

[0008] In some embodiments, the clamping mechanism further includes a plurality of linkage brackets, which are spaced apart on the vehicle body along the length of the linkage. The linkage is rotatably inserted into the linkage brackets, and the linkage brackets are positioned to block one side of the clamping member.

[0009] In some embodiments, the flip-top cover includes: A support base is provided on the vehicle body, and the support base has a feed inlet, which is adapted to and connected to the loading port; Multiple cover plates are flip-mounted on the support base. The multiple cover plates are spaced apart along the length of the connecting rod, and the cover plates are detachably installed on one side of the feed inlet.

[0010] In some embodiments, the flip-top cover further includes a waterproof cover plate disposed on one of two adjacent cover plates, and the waterproof cover plate covers one side of the gap between the two adjacent cover plates.

[0011] In some embodiments, the cover plate is provided with reinforcing ribs.

[0012] In some embodiments, the cover plate is connected to the support base via a hinge.

[0013] In some embodiments, the cover plate is provided with a water-retaining edge that extends to the outside of the support base, and when the cover plate covers the support base, the edge of the water-retaining edge is lower than the support base.

[0014] The embodiments of this application have at least the following beneficial effects: The grain hopper cart provided in this application includes a cart body, a flip-top cover, and a pressing mechanism. The flip-top cover is matched and installed at the loading port of the cart body, used to flip and seal or expose the loading port. The pressing mechanism presses the flip-top cover to open and close the loading port. It is worth noting that the pressing mechanism includes a connecting rod and multiple pressing members spaced apart along the length of the connecting rod. The connecting rod is rotatably mounted on the cart body along its central axis, allowing multiple pressing members to move simultaneously with the connecting rod. The movement trajectory of the multiple pressing members is matched with the sealing position of the flip-top cover, enabling the multiple pressing members to press against multiple positions of the flip-top cover, thus locking the flip-top cover as a whole. Simultaneous contact and locking also simplify the locking and unlocking operation of the flip-top cover, improving operational efficiency and reducing labor intensity. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A schematic diagram of the structure of the grain hopper cart in an embodiment of this application is shown; Figure 2 It shows Figure 1 A schematic diagram showing the opening of the tilting cover, pressing mechanism, and locking mechanism of the grain hopper car; Figure 3 It shows Figure 2 A schematic diagram showing the locked states of the flip-top cover, the pressing mechanism, and the locking mechanism. Figure 4 It shows Figure 3 A partial cross-sectional view of the clamping state of the flip-top cover and the clamping mechanism; Figure 5 It shows Figure 1 A schematic diagram of the underframe structure of the grain hopper car in the text; Figure 6 It shows Figure 1 A schematic diagram of the side wall structure of the grain hopper car in the text; Figure 7 It shows Figure 1 A schematic diagram of the end wall structure of the grain hopper car.

[0017] Figure label: 1-Car body, 1a-Loading opening, 11-Underframe, 111-End beam, 112-Middle beam, 113-Sleeper beam, 114-Lower side wall, 115-Ribbon, 12-Side wall, 121-Upper side beam, 122-Side transverse wall, 123-Diagonal brace, 124-Reinforcing beam, 125-Middle transverse brace, 126-First ladder, 13-End wall, 131-End wall panel, 132-End diagonal brace, 133-Second reinforcing rib, 134-Second ladder, 135-Safety bar, 14-Roof; 2-Flip-over cover, 21-Support base, 21a-Feed inlet, 22-Cover plate, 221-First reinforcing rib, 222-Waterproof edge, 23-Waterproof cover plate, 24-Hinge, 25-Auxiliary gripper; 3-Clamping mechanism, 31-Linking rod, 32-Clamping part, 321-Hook part, 33-Holding part, 331-Holding rod, 34-Linking rod bracket; 4-Locking mechanism, 41-Lock seat, 411-Slot, 42-Lock. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0019] Furthermore, reference numerals and / or reference letters may be repeated in different examples in this application. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or settings discussed. In addition, this application provides examples of various specific processes and materials, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0020] This application is described below with reference to the accompanying drawings and specific embodiments: A grain hopper car is a type of railway freight car used for large-scale grain transport. It has openable and closable unloading and loading ports at the bottom and top of the car body, respectively. Typically, the loading port on the top of the car body is equipped with a matching loading port cover, which can be opened and closed by flipping the cover. Multiple loading ports are spaced along the length of the car body and each has an independent locking mechanism. Therefore, opening and closing the loading ports requires operating the locking mechanisms multiple times, making the overall operation complex, inefficient, and labor-intensive.

[0021] Therefore, this application provides a grain hopper cart, which aims to achieve unified operation of the locking mechanisms of multiple loading port covers through the design of a locking mechanism, thereby solving to some extent the technical problems of complex opening and closing operation of the loading port of the grain hopper cart, low efficiency, and high labor intensity; and simplifying the locking and unlocking operation of the loading port covers, improving operational efficiency, and reducing labor intensity.

[0022] Figure 1 A schematic diagram of the structure of the grain hopper cart in an embodiment of this application is shown; Figure 2 It shows Figure 1 A schematic diagram showing the opening of the tilting cover, pressing mechanism, and locking mechanism of the grain hopper car; Figure 3 It shows Figure 2 A schematic diagram showing the locked states of the flip-top cover, the pressing mechanism, and the locking mechanism. Figure 4 It shows Figure 3 A partial cross-sectional view of the clamping state of the flip-top cover and clamping mechanism.

[0023] See Figure 1 , Figure 2 , Figure 3 and Figure 4In some embodiments, the grain hopper cart includes a cart body 1, a flip-top cover 2 disposed on the cart body 1, and a pressing mechanism 3; and the pressing mechanism 3 is configured to cooperate with the flip-top cover 2 to press and lock the flip-top cover 2.

[0024] The vehicle body 1 is equipped with a cargo compartment for storing goods such as grain, and the vehicle body 1 is provided with a loading port 1a, which is connected to the cargo compartment inside the vehicle body 1 and serves as a window for grain to be filled into the cargo compartment of the vehicle body 1. Typically, in order to improve loading efficiency, the number of loading ports 1a can be set to multiple, and the multiple loading ports 1a are spaced apart along the length direction of the vehicle body 1.

[0025] The flip-top cover 2 is rotatably mounted on the vehicle body 1 and is configured to cooperate with the loading port 1a. By flipping the flip-top cover 2, the loading port 1a can be exposed or covered, thereby opening or closing the loading port 1a. Generally, the number of flip-top covers 2 can also be set to multiple, corresponding one-to-one with the multiple loading ports 12a.

[0026] The clamping mechanism 3 includes a connecting rod 31 and a plurality of clamping members 32. The connecting rod 31 is rotatably mounted on the vehicle body 1 along its central axis. The plurality of clamping members 32 are spaced apart along the length or axial direction of the connecting rod 31 and correspond to the plurality of flip-top covers 2. When the connecting rod 31 rotates, the plurality of clamping members 32 rotate with the connecting rod 31, thereby contacting and clamping the plurality of flip-top covers 2 to achieve sealing and locking of the loading port 1a; or the plurality of clamping members 32 release the plurality of flip-top covers 2 to achieve unlocking and exposure of the loading port 1a.

[0027] Therefore, the movement trajectory of the clamping member 32 is matched with the sealing position of the flip-top cover 2, so that when the flip-top cover 2 is placed on the loading port 2, the clamping member 32 can move to the flip-top cover 2 and press the flip-top cover 2, thereby locking the flip-top cover 2 in the state of closing the loading port 2.

[0028] The connecting rod 31 can simultaneously drive the multiple clamping parts 32 to clamp and lock or move away from and unlock the flip cover 2, thereby achieving convenient unlocking and locking operations. Compared with the scheme of locking and unlocking multiple flip covers 2 one by one, the scheme of moving the multiple clamping parts 2 in a unified and synchronous manner by the connecting rod 31 can greatly improve the operating efficiency and reduce labor intensity.

[0029] In some embodiments, to facilitate operation of the connecting rod 31, a structure that facilitates manual gripping can be connected to the connecting rod 31, thereby allowing direct rotation of the connecting rod 31; that is, the clamping mechanism also includes a holding member 33, which is connected to the connecting rod 31.

[0030] Generally, in order to facilitate the rotation of the connecting rod 31, the holding member 33 can be arranged radially on the connecting rod 33.

[0031] In some embodiments, in order to simplify the structure and ensure ease of gripping, the gripping member 33 may be configured as a rod, that is, the gripping member 33 may be configured as a gripping rod 331.

[0032] In some embodiments, in order to maintain the stability of the pressing action between the clamping member 32 and the flip-top cover 2, the part of the clamping member 32 that contacts the flip-top cover 2 can be set as a plate, and one side of the plate is matched with one side of the flip-top cover 2, so that a certain contact pressing surface can be maintained by surface-to-surface contact, thereby improving the uniformity and reliability of the contact pressing force.

[0033] In some embodiments, the side of the clamping member 32 that contacts the connecting rod 31 can be directly welded to the circumferential side of the connecting rod 31, thereby simplifying the installation operation of the clamping member 32 and improving the connection reliability.

[0034] In some embodiments, the clamping member 32 is provided with a hook portion 321 at one end near the connecting rod 31. The hook portion 321 is hooked onto the connecting rod 31 and can be fixed to the connecting rod 31 by welding or other means.

[0035] In some embodiments, the connecting rod 31 may be configured as a straight rod arranged along the length direction of the vehicle body 1.

[0036] In some embodiments, in order to maintain the reliability of the pressing state of the pressing mechanism 3, the grain hopper car further includes a locking mechanism 4 for connecting and locking the connecting rod 31, thereby locking the position of the pressing member 32 and maintaining the pressing state.

[0037] When the clamping mechanism 3 clamps the flip cover 2, the current position of the connecting rod 31 can be locked by the locking mechanism 4, so that the clamping member 32 keeps the flip cover 2 clamped.

[0038] In some embodiments, the locking mechanism 4 includes a lock seat 41 and a latch 42; the lock seat 41 is disposed on the vehicle body 1, and a slot 411 is provided on the lock seat 41, and the shape and specifications of the slot 411 are adapted to the gripping member 33 to match and accommodate the gripping member 41; the latch 42 is movably disposed on the lock seat 41, and can be moved relative to the slot 411 to block the opening of the slot 411, so that when the gripping member 33 is engaged in the slot 411, the latch 42 is moved and blocked in the slot 411 to restrict the gripping member 33 from disengaging from the slot 411, thereby stably locking the gripping member 33 and maintaining the positions of the connecting rod 3 and the clamping member 32.

[0039] In other words, the position of the lock seat 41 is matched with the movement trajectory of the holding member 33, so that when the holding member 33 rotates with the connecting rod 31, it can stably match the lock seat 41 and achieve accurate locking.

[0040] When it is necessary to lock and press the flip cover 2, the holding member 33 rotates with the connecting rod 31. When the connecting rod 31 rotates to the point where the pressing member 32 presses the flip cover 2, the holding member 33 reaches the locking position with the locking seat 41. At this time, the holding member 33 can be held in the current position by the cooperation of the locking seat 41 and the locking buckle 42, thus completing the locking operation.

[0041] When unlocking is required, the latch 42 moves away from the slot of the slot 411, releasing the lock on the holding member 33. Then, the connecting rod 31 and the holding member 33 can be driven to rotate in the unlocking direction, thereby driving the clamping member 32 away from the flip cover 2, releasing the flip cover 2, and flipping the flip cover 2 to open the loading port 1a.

[0042] In some embodiments, the gripping member 33 may be connected to one end of the connecting rod 31, and the lock seat 41 may also be provided at one end of the vehicle body 1 to avoid occupying the central area of ​​the vehicle body 1 and to ensure the arrangement space of the loading port 1a.

[0043] In some embodiments, in order to make it easier for the gripper 33 to fit into the slot 411, the end of the gripper 33 and the connecting rod 31 can be rotated in a non-radial direction. That is, the gripper 33 can move in a non-radial direction to adapt to the slot 411, so as to deal with problems such as local deformation, corrosion, jamming and axial movement of the connecting rod 31 and the gripper 33.

[0044] Generally, the holding member 33 can be pivotally connected to the connecting rod 31 via a pivot axis arranged radially along the connecting rod 31, thereby enabling it to move relative to the connecting rod 31 along the axial direction of the connecting rod 31, thus stably engaging with the slot 411.

[0045] In some embodiments, in order to simplify the rotational connection between the connecting rod 31 and the vehicle body 1, the clamping mechanism 3 further includes a plurality of connecting rod supports 34. The plurality of connecting rod supports 34 are disposed on the vehicle body 1 and are arranged at intervals along the axial direction of the connecting rod 31. The connecting rod 31 is rotatably inserted into the plurality of connecting rod supports 34, thereby stably supporting the connecting rod 31 at multiple rotational points.

[0046] In some embodiments, in order to limit the clamping member 32 from moving out of position along the length of the connecting rod 31, the connecting rod bracket 34 can be positioned on one side of the clamping member 32 to prevent it from moving excessively axially.

[0047] Generally, among the plurality of link supports 34, at least one link support 34 is disposed close to one of the clamping members 32 to prevent the link 31 from moving excessively in one axial direction; and another link support 34 may also be disposed close to another clamping member 32 to prevent excessive movement in another axial direction.

[0048] In some embodiments, the flip-top cover 2 may include a support base 21 and multiple cover plates 22; the support base 21 is disposed on the vehicle body 1, and the support base 21 has a feed inlet 21a that matches and communicates with the loading port 1a; the multiple cover plates 22 are flip-mounted on the support base 21, and the multiple cover plates are adapted to cover one side of the feed inlet 21a, so as to flip-top and seal or expose the feed inlet 21a and the loading port 1a. The multiple cover plates 22 are spaced apart along the length direction of the vehicle body 1, corresponding one-to-one with the multiple loading ports 1a.

[0049] In other words, the support base 21 can be configured as a ring frame, and the feed port 21a is located in the inner area of ​​the ring frame in the middle of the support base 21.

[0050] In some embodiments, the support base 21 may be configured as a ring frame covering the cargo transfer port 1a of the vehicle body 1, and the plurality of cover plates 22 are spaced apart and covered on the support base 21.

[0051] In other words, the support base 21 is a ring frame that covers all loading ports 1a on the vehicle body 1, and the plurality of cover plates 22 cover a portion of the feed port 21a area.

[0052] Of course, the loading port 1a can also be set as a long window, and the support base 21 can also be set as a long ring frame.

[0053] In some embodiments, the support 21 protrudes from the surface of the vehicle body, thereby limiting the flow of water on the surface of the vehicle body and preventing debris from entering the loading port 1a; on the other hand, the protruding support 21 can keep the cover 22 at a certain distance from the roof of the vehicle, avoiding direct contact between the cover 22 and the vehicle body when the cover is open, and effectively protecting the paint of the vehicle body.

[0054] In some embodiments, considering that water may easily accumulate and seep between two adjacent cover plates 22, the flip-top cover 2 further includes a waterproof cover plate 23, which is disposed in the gap between two adjacent cover plates 22 to achieve a waterproof function.

[0055] To facilitate installation and sealing of gaps, the waterproof cover plate 23 can typically be placed on one of two adjacent cover plates 22 and rotate along with the connected cover plate 22.

[0056] In some embodiments, in order to improve the structural strength and morphological stability of the cover plate 22, a first reinforcing rib 221 may be provided on the cover plate 22.

[0057] In some embodiments, the cover plate 22 can be connected to the support base 21 or the vehicle body 1 via a hinge 24, thereby enabling the cover plate 22 to be stably flipped and connected.

[0058] In some embodiments, in order to further reduce the risk of rainwater or the like entering the loading port 1a through the gap between the cover plate 22 and the support 21, the edge of the cover plate 22 may be extended to the outside of the support 21 to form a water-blocking edge 222.

[0059] To enhance the water-blocking effect, the height of the edge of the water-blocking edge 222 can be lower than that of the support base 21.

[0060] In some embodiments, the loading port 1a is located on the top of the vehicle body 1, and correspondingly, the flip cover 2, the pressing mechanism 3, and the locking mechanism 4 are all located on the top of the vehicle body 1.

[0061] Figure 5 It shows Figure 1 A schematic diagram of the underframe structure of the grain hopper car in the text; Figure 6 It shows Figure 1 A schematic diagram of the side wall structure of the grain hopper car in the text; Figure 7 It shows Figure 1 A schematic diagram of the end wall structure of the grain hopper car.

[0062] See Figure 1 , Figure 5 , Figure 6 and Figure 7 In some embodiments, the vehicle body 1 includes a chassis 11, side walls 12, end walls 13, and a roof 14. The chassis 11, side walls 12, end walls 13, and roof 14 enclose the vehicle body 1 and form an internal cavity.

[0063] The loading port 1a is located on the roof 14, and correspondingly, the flip-up cover 2, the pressing mechanism 3, and the locking mechanism 4 are also located on the roof 14. The roof 14 may not have a roof running board, which can effectively increase the vehicle's volume within the clearance limits.

[0064] The base frame 11 adopts a multi-unloading ridge base frame, and the unloading angle is adapted to the grain stacking angle to improve the grain unloading rate.

[0065] The sidewall 12 is designed as a lightweight, slightly curved structural component, and the vehicle body cross-section is shaped like an inverted "V". This can effectively increase the vehicle volume within the clearance range and facilitate grain unloading.

[0066] The vehicle body 1 can adopt an all-steel welded structure, which is simple in structure, reliable throughout the entire life cycle, and has outstanding maintenance-free performance.

[0067] In some embodiments, the base frame 11 mainly includes an end beam 111, a middle beam 112, a pillow beam 113, a lower side wall 114, and a transverse ridge 115.

[0068] The middle beam 112, the bolster beam 113, the lower side wall 114, and the transverse ridge 115 are combined by a fixed connection to provide the main load-bearing function for vehicle transportation; the end beam 111 is fixedly connected to the middle beam 112 and the bolster beam 113 to form the main load-bearing and support structure of the base frame 11.

[0069] The unloading area formed by the transverse ridge 115, the central beam 112, and the lower side wall 114 has an unloading angle that matches the grain stacking angle, and there are no other components that would affect unloading, further improving the grain unloading rate.

[0070] In some embodiments, the side wall 12 mainly includes an upper side beam 121, a side wall panel 122, a diagonal brace 123, a reinforcing beam 124, a central horizontal brace 125, and a first escalator 126; the upper side beam 121, the side wall panel 122, the diagonal brace 123, the reinforcing beam 124, the central horizontal brace 125, and the first escalator 126 are combined by a fixed connection.

[0071] The side wall panel 122 adopts a large-arc C-shaped cross-section. The upper side beam 121 and the reinforcing beam 124 are connected to the inner and outer sides of the side wall panel 122 to improve the overall rigidity. The middle horizontal brace 125 is used to connect the two side wall panels 122. The middle horizontal brace 125 is provided with a column and connected to the roof 14 to form a frame structure, which improves the load-bearing capacity of the roof and significantly improves the rigidity of the side wall 12. The first ladder 126 is located in the middle of the side wall panel 122. The upper part of the first ladder 126 is fixedly connected to the area where the loading port 1a is located, and the lower part of the first ladder 126 is fixedly connected to the cross ridge 115 of the base frame 11, which is used for workers to enter and exit the interior of the vehicle body 1 from the loading port 1a.

[0072] In some embodiments, the end wall 13 mainly includes: an end wall plate 131, an end brace 132, a second reinforcing rib 133, a second ladder 134, and a safety bar 135, all components being assembled by a fixed connection; the end wall plate 131, the end brace 132, and the second reinforcing rib 133 provide load-bearing function for the end of the vehicle; the end wall plate 131 is provided with ventilation holes to balance the air pressure inside and outside the vehicle during sealed transport of grain, ensuring safe unloading; the second ladder 134 is located on the side and end of the end wall 12, and is used to cooperate with foot pedals to facilitate workers getting on the vehicle; the safety bar 135 cooperates with the passage step of the base frame 11, and when workers pass through the vehicle via the end step, the safety bar 135 is used for safety locking and can also be used as a safety handrail.

[0073] In some embodiments, the roof 14 is a bent arch structure with a small angle of inclination, which has excellent hydrophobic properties and can prevent dirt from accumulating.

[0074] In some embodiments, the support base 21 is a bent part, and has an inclined wing at the contact point with the cover plate 22, thereby forming a labyrinth-type sealing structure together with the cover plate 22, which has good sealing performance.

[0075] In some embodiments, the cover plate 22 may be a thin-plate pressed structure, which is lightweight, has high strength, and is easy for workers to operate.

[0076] In some embodiments, the cover plate 22 is provided with an auxiliary gripper 25, which facilitates operation and can effectively improve loading efficiency.

[0077] The embodiments of this application have at least the following beneficial effects: The grain hopper cart provided in this application includes a cart body, a flip-top cover, and a pressing mechanism. The flip-top cover is matched and installed at the loading port of the cart body, used to flip and seal or expose the loading port. The pressing mechanism presses the flip-top cover to open and close the loading port. It is worth noting that the pressing mechanism includes a connecting rod and multiple pressing members spaced apart along the length of the connecting rod. The connecting rod is rotatably mounted on the cart body along its central axis, allowing multiple pressing members to move simultaneously with the connecting rod. The movement trajectory of the multiple pressing members is matched with the sealing position of the flip-top cover, enabling the multiple pressing members to press against multiple positions of the flip-top cover, thus locking the flip-top cover as a whole. Simultaneous contact and locking also simplify the locking and unlocking operation of the flip-top cover, improving operational efficiency and reducing labor intensity.

[0078] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0079] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0080] It should be noted that all directional indications in the embodiments of this application are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indication will also change accordingly. In this application, unless otherwise explicitly specified and limited, the terms "connection" and "fixed" should be interpreted broadly. For example, "fixed" can be a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction relationship between two components, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances. In addition, the descriptions involving "first," "second," etc., in this application are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Thus, features defined with "first" or "second" may explicitly or implicitly include one or more of the aforementioned features. In the description of this application, "multiple" means two or more, unless otherwise explicitly and specifically limited.

[0081] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0082] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection claimed in this application.

[0083] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A grain hopper cart, characterized in that, include: The vehicle body is equipped with a loading port; A flip-up cover is rotatably mounted on the vehicle body, and the flip-up cover is aligned with the loading port to cover or expose the loading port. The clamping mechanism includes a connecting rod and a plurality of clamping components. The connecting rod is rotatably mounted on the vehicle body along a central axis. The plurality of clamping components are spaced apart from the connecting rod along its axial direction. The movement trajectory of the clamping components is matched with the sealing position of the flip-top cover, so that the flip-top cover is clamped to the loading port by rotating the connecting rod and driving the plurality of clamping components.

2. The grain hopper car as described in claim 1, characterized in that, The clamping mechanism also includes a holding member, which is connected to the connecting rod.

3. The grain hopper cart as described in claim 2, characterized in that, The grain hopper car also includes a locking mechanism, which is disposed on the car body and connected to the holding member to lock the pressing position of the connecting rod and the pressing member.

4. The grain hopper car as described in claim 3, characterized in that, The locking mechanism includes: A lock seat is provided on the vehicle body, and the lock seat has a slot, and the slot can be detachably engaged with the holding member; A latch is movably disposed on the lock seat so that when the holding member is inserted into the slot, the latch blocks the opening of the slot.

5. The grain funnel cart as described in claim 1, characterized in that, The clamping mechanism also includes multiple connecting rod supports, which are spaced apart on the vehicle body along the length of the connecting rod. The connecting rod is rotatably inserted into the connecting rod support, and the connecting rod support is positioned to block one side of the clamping member.

6. The grain hopper car as described in any one of claims 1 to 5, characterized in that, The flip-top cover includes: A support base is provided on the vehicle body, and the support base has a feed inlet, which is adapted to and connected to the loading port; Multiple cover plates are flip-mounted on the support base. The multiple cover plates are spaced apart along the length of the connecting rod, and the cover plates are detachably installed on one side of the feed inlet.

7. The grain funnel cart as described in claim 6, characterized in that, The flip-top cover also includes a waterproof cover plate, which is disposed on one of the two adjacent cover plates and covers one side of the gap between the two adjacent cover plates.

8. The grain hopper car as described in claim 6, characterized in that, The cover plate is provided with reinforcing ribs.

9. The grain hopper car as described in claim 6, characterized in that, The cover plate is connected to the support base via a hinge.

10. The grain hopper car as described in claim 6, characterized in that, The cover plate is provided with a water-retaining edge that extends to the outside of the support base, and when the cover plate covers the support base, the height of the edge of the water-retaining edge is lower than that of the support base.

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