Variable length container flat car

Abstract

The utility model provides a kind of flat car special for variable length container, including front end portion underframe, rear end portion underframe, short middle portion underframe, long middle portion underframe, front bogie and rear bogie, front bogie is installed in the bottom of front end portion underframe, rear bogie is installed in the bottom of rear end portion underframe, short middle portion underframe and long middle portion underframe are selectively installed;Wherein, one end of short middle portion underframe and front end portion underframe are detachably connected, the other end of short middle portion underframe and rear end portion underframe are detachably connected;Or, one end of long middle portion underframe and front end portion underframe are detachably connected, the other end of long middle portion underframe and rear end portion underframe are detachably connected.Through the technical scheme of the application, the problem that container special flat car is limited by vehicle type in the prior art, so that the length or load of vehicle is not fully utilized, can be solved.

Description

Technical Field

[0001] This utility model relates to the field of railway container transportation technology, and more specifically, to a special flatcar for variable length containers. Background Technology

[0002] Currently, my country's railway container transport mainly uses X70 and X70B type container flatcars, both of which have a load capacity of 70t. The X70 type has a chassis length of 12.5m and is mainly used to carry two 20ft containers or one 40ft container; the X70B type has a chassis length of 25.4m and is mainly used to carry two 40ft containers or two 20ft containers.

[0003] However, when the X70 is loaded with two 20ft containers, the vehicle length and load capacity are fully utilized, but when loaded with one 40ft container, 50% of the vehicle's load capacity is wasted. Similarly, when the X70B is loaded with two 40ft containers, the vehicle length and load capacity are fully utilized, but when loaded with two 20ft containers, 50% of the vehicle length is wasted. Therefore, container flatcars are limited by vehicle type, and when loading different types of containers, their vehicle length or load capacity may not be fully utilized, resulting in a waste of resources. Utility Model Content

[0004] This invention provides a variable-length container flatcar to solve the problem that existing container flatcars are limited by vehicle type, resulting in underutilization of vehicle length or load capacity.

[0005] To address the aforementioned problems, this utility model provides a variable-length container flatcar, comprising a front end frame, a rear end frame, a short middle frame, a long middle frame, a front bogie, and a rear bogie. The front bogie is mounted on the bottom of the front end frame, and the rear bogie is mounted on the bottom of the rear end frame. The short middle frame and the long middle frame are selectively installed. One end of the short middle frame is detachably connected to the front end frame, and the other end of the short middle frame is detachably connected to the rear end frame. The front end frame and the short middle frame are used to carry one 20-foot container, and the rear end frame and the short middle frame are used to carry another 20-foot container. Alternatively, one end of the long middle frame is detachably connected to the front end frame, and the other end of the long middle frame is detachably connected to the rear end frame. The front end frame and the long middle frame are used to carry one 40-foot container, and the rear end frame and the long middle frame are used to carry another 40-foot container.

[0006] Furthermore, the short middle frame includes interconnected short crossbeams and short middle beams, with the length directions of the short crossbeams and short middle beams perpendicular to each other. One end of the short middle beam is detachably connected to the front end frame, and the other end of the short middle beam is detachably connected to the rear end frame.

[0007] Furthermore, the front end frame includes a traction beam, an end beam, and a bolster beam. The end beam and the bolster beam are fixedly connected to the traction beam, and the end beam and the bolster beam are spaced apart. One end of the traction beam and one end of the short middle beam are detachably connected.

[0008] Furthermore, a front connecting plate is fixed to one end of the traction beam, and a middle connecting plate is fixed to one end of the short middle beam. The front connecting plate and the middle connecting plate are detachably connected by multiple fasteners.

[0009] Furthermore, one end of the traction beam and the front connecting plate are connected together to multiple reinforcing ribs, and / or one end of the short middle beam and the middle connecting plate are connected together to multiple reinforcing ribs.

[0010] Furthermore, the front end underframe also includes two small side beams, which are located on both sides of the traction beam. One end of the small side beam is connected to the end beam, and the other end of the small side beam is connected to the bolster beam. The structure of the rear end underframe is the same as that of the front end underframe.

[0011] Furthermore, the long central base frame includes a long crossbeam and a long central beam that are connected to each other. The length directions of the long crossbeam and the long central beam are perpendicular to each other. One end of the long central beam is detachably connected to the front end base frame, and the other end of the long central beam is detachably connected to the rear end base frame.

[0012] Furthermore, two container positioning and locking structures are provided on the front end underframe, two container positioning and locking structures are provided on the rear end underframe, four container positioning and locking structures are provided on the short middle underframe, and four container positioning and locking structures are provided on the long middle underframe.

[0013] Furthermore, the variable-length container flatcar also includes an air brake system, which is installed on the front end underframe and is used to brake the front bogie.

[0014] Furthermore, both the front and rear bogies are K6 type bogies, and couplers are installed on both the front and rear underframes.

[0015] This solution incorporates a short and a long central underframe, with selective installation of either type depending on the container model. This breaks the limitations of traditional container flatcars, allowing for flexible length adjustments to meet specific needs. It addresses underutilization of vehicle length or load capacity, preventing resource waste and improving vehicle utilization efficiency. Both the short and long central underframes can be detachably connected to the front and rear underframes, enhancing the flexibility and convenience of changing vehicle length. This also facilitates vehicle inspection and maintenance, improving safety and reliability. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0017] Figure 1 A schematic diagram of the structure of a variable-length container flatcar with a short central underframe provided by an embodiment of the present invention is shown.

[0018] Figure 2 A schematic diagram of the structure of a variable-length container flatcar with a long central underframe provided by an embodiment of the present invention is shown.

[0019] Figure 3 A schematic diagram of the front end frame structure is shown;

[0020] Figure 4 A structural schematic diagram of the short central underframe is shown;

[0021] Figure 5 A top view of a variable-length container flatcar with a short central underframe is shown.

[0022] Figure 6 A schematic diagram of the long central base frame is shown;

[0023] Figure 7 A top view of a variable-length container flatcar with a long central underframe is shown.

[0024] The above figures include the following reference numerals:

[0025] 10. Front end frame; 11. Traction beam; 12. End beam; 13. Pillar beam; 14. Small side beam; 15. Container positioning and locking structure;

[0026] 20. Rear end frame;

[0027] 30. Short mid-section base frame; 31. Short crossbeam; 32. Short middle beam;

[0028] 40. Long central base frame; 41. Long crossbeam; 42. Long central beam;

[0029] 50. Front bogie;

[0030] 60. Rear bogie;

[0031] 71. Front connecting plate; 72. Middle connecting plate; 73. Reinforcing rib; 74. Air brake device; 75. Coupler. Detailed Implementation

[0032] The technical solutions in at least one embodiment 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 them. The following description of at least one embodiment is merely illustrative and is not intended to limit this application or its applications. Other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are all within the scope of protection of this application.

[0033] like Figures 1 to 7 As shown, an embodiment of this utility model provides a variable-length container flatcar, including a front end base frame 10, a rear end base frame 20, a short middle base frame 30, a long middle base frame 40, a front bogie 50, and a rear bogie 60. The front bogie 50 is mounted on the bottom of the front end base frame 10, and the rear bogie 60 is mounted on the bottom of the rear end base frame 20. The short middle base frame 30 and the long middle base frame 40 are selectively mounted. One end of the short middle base frame 30 is detachably connected to the front end base frame 10, and the other end of the short middle base frame 30 is detachably connected to the rear end base frame 20. The underframe 20 is detachably connected, with the front underframe 10 and the short mid-section underframe 30 used to carry one 20-foot container, and the rear underframe 20 and the short mid-section underframe 30 used to carry another 20-foot container; or, one end of the long mid-section underframe 40 is detachably connected to the front underframe 10, and the other end of the long mid-section underframe 40 is detachably connected to the rear underframe 20, with the front underframe 10 and the long mid-section underframe 40 used to carry one 40-foot container, and the rear underframe 20 and the long mid-section underframe 40 used to carry another 40-foot container.

[0034] In this design, a short central underframe 30 and a long central underframe 40 are configured, and the short central underframe 30 or the long central underframe 40 can be selectively installed according to the container model. This breaks the model restrictions of container flatcars, allowing the vehicle length to be freely changed according to needs. This solves the problem of underutilization of vehicle length or load capacity, avoids resource waste, and improves vehicle utilization efficiency. Both the short central underframe 30 and the long central underframe 40 can be detachably connected to the front underframe 10 and the rear underframe 20, improving the flexibility and convenience of changing the vehicle length, while also facilitating vehicle inspection and maintenance, thus improving its safety and reliability.

[0035] like Figure 4 , Figure 5As shown, the short central underframe 30 includes interconnected short crossbeams 31 and short central beams 32. The length directions of the short crossbeams 31 and short central beams 32 are perpendicular to each other. One end of the short central beam 32 is detachably connected to the front underframe 10, and the other end of the short central beam 32 is detachably connected to the rear underframe 20. The vertical connection between the short crossbeams 31 and the short central beams 32 enhances the structural stability of the short central underframe 30, enabling it to be more firmly supported and connected. The detachable connection design ensures the reliability of the connection and the convenience of assembly and disassembly. This not only ensures the stability of the short central underframe 30 when carrying containers but also facilitates quick assembly and disassembly with other parts of the vehicle, improving the vehicle's utilization efficiency.

[0036] like Figure 3 As shown, the front underframe 10 includes a traction beam 11, end beams 12, and bolster beams 13. End beams 12 and bolster beams 13 are fixedly connected to the traction beam 11, and are spaced apart. One end of the traction beam 11 is detachably connected to one end of the short center beam 32. The combination of the traction beam 11, end beams 12, and bolster beams 13 provides the necessary structural strength and stability for the front underframe 10, ensuring the safety of the container during transportation. It also facilitates connection with other components. The detachable connection allows for flexible combination with the short center beam 32, improving the overall transportation efficiency and safety of the vehicle.

[0037] In some embodiments, a front connecting plate 71 is fixed to one end of the traction beam 11, and a middle connecting plate 72 is fixed to one end of the short middle beam 32. The front connecting plate 71 and the middle connecting plate 72 are detachably connected by a plurality of fasteners. The use of the front connecting plate 71, the middle connecting plate 72, and the fasteners improves the stability of the connection between the front end underframe 10 and the short middle underframe 30. At the same time, the design of the front connecting plate 71 and the middle connecting plate 72 facilitates alignment and connection, improving the efficiency of vehicle assembly and disassembly.

[0038] In some embodiments, one end of the traction beam 11 and the front connecting plate 71 are connected together by a plurality of reinforcing ribs 73, and / or one end of the short middle beam 32 and the middle connecting plate 72 are connected together by a plurality of reinforcing ribs 73. The arrangement of the reinforcing ribs 73 enhances the structural strength of the connection area, increases the rigidity of the connection point, prevents deformation under long-term use or heavy load conditions, ensures the structural stability of the connection area under heavy loads, avoids damage to the connection, and improves the service life of the vehicle.

[0039] In some embodiments, the front underframe 10 further includes two small side beams 14, which are located on both sides of the traction beam 11. One end of each small side beam 14 is connected to the end beam 12, and the other end is connected to the bolster beam 13. The structure of the rear underframe 20 is the same as that of the front underframe 10. The small side beams 14 increase the lateral stability of the front underframe 10, improve its overall rigidity, prevent lateral movement of the container during transportation, ensure its stability during transportation, and improve transportation safety.

[0040] like Figure 6 , Figure 7 As shown, the long central underframe 40 includes a long crossbeam 41 and a long central beam 42 connected to each other. The length directions of the long crossbeam 41 and the long central beam 42 are perpendicular to each other. One end of the long central beam 42 is detachably connected to the front underframe 10, and the other end of the long central beam 42 is detachably connected to the rear underframe 20. The combined design of the long crossbeam 41 and the long central beam 42 provides sufficient length and structural strength for the long central underframe 40, while the detachable connection design ensures flexible combination with the front underframe 10 and the rear underframe 20, ensuring the stability of the long central underframe 40 when carrying containers, and facilitating quick assembly and disassembly with other parts of the vehicle, thus improving the vehicle's utilization efficiency.

[0041] like Figure 3 , Figure 4 , Figure 6 The front underframe 10 has two container positioning and locking structures 15, the rear underframe 20 has two container positioning and locking structures 15, the short middle underframe 30 has four container positioning and locking structures 15, and the long middle underframe 40 has four container positioning and locking structures 15. The container positioning and locking structures 15 ensure accurate positioning and secure locking of the containers on the front underframe 10, rear underframe 20, short middle underframe 30, and long middle underframe 40, preventing movement and shaking during transportation, improving the safety and stability of the containers during transport, and avoiding accidents caused by container movement.

[0042] like Figure 1 , Figure 2 As shown, the variable-length container flatcar also includes an air brake device 74, which is installed on the front end underframe 10 and is used to brake the front bogie 50. The air brake device 74 enables braking of the front bogie 50, ensuring the reliability of braking during vehicle operation, avoiding accidents caused by brake failure, and improving transportation safety.

[0043] In some embodiments, both the front bogie 50 and the rear bogie 60 are K6 type bogies, and couplers 75 are provided on both the front underframe 10 and the rear underframe 20. The use of K6 type bogies provides the vehicle with good driving performance and load-bearing capacity. At the same time, the couplers 75 enable the connection between vehicles. This arrangement ensures the stability and safety of the vehicle during operation, enables rapid connection and separation between vehicles, and improves the flexibility of transportation.

[0044] The working process of this utility model is described as follows:

[0045] During use, the short center underframe 30 or the long center underframe 40 is selected based on the type of container to be loaded. When loading a 20ft container, the short center underframe 30 is installed between the front underframe 10 and the rear underframe 20, and a secure connection is achieved through connecting plates and fasteners. The container is then positioned on the front underframe 10 and the short center underframe 30, as well as the rear underframe 20 and the short center underframe 30, and secured using the container positioning and locking structure 15. When loading a 40ft container, the long center underframe 40 is installed between the front underframe 10 and the rear underframe 20, and a connection is also achieved through connecting plates and fasteners. The container is then positioned on the front underframe 10 and the long center underframe 40, as well as the rear underframe 20 and the long center underframe 40, and secured using the container positioning and locking structure 15. The air brake system 74 provides braking function during vehicle operation, ensuring safe driving. The entire working process demonstrates the flexibility and efficiency of the technical solution presented in this application. It can quickly adjust the vehicle length according to different transportation needs, solve the problem of underutilization of vehicle length or load, avoid resource waste, improve vehicle utilization efficiency, and at the same time ensure the structural stability and transportation safety of the vehicle.

[0046] The above are merely some embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

[0047] The technical features of the embodiments described above can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered to be within the scope of this specification.

[0048] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0049] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as exemplary only and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0050] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0051] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0052] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this application.

Claims

1. A variable-length container flatcar, characterized in that, It includes a front end underframe (10), a rear end underframe (20), a short middle underframe (30), a long middle underframe (40), a front bogie (50), and a rear bogie (60). The front bogie (50) is mounted on the bottom of the front end underframe (10), and the rear bogie (60) is mounted on the bottom of the rear end underframe (20). The short middle underframe (30) and the long middle underframe (40) are selectively mounted. One end of the short mid-section base frame (30) is detachably connected to the front end base frame (10), and the other end of the short mid-section base frame (30) is detachably connected to the rear end base frame (20). The front end base frame (10) and the short mid-section base frame (30) are used to carry one 20-foot container, and the rear end base frame (20) and the short mid-section base frame (30) are used to carry another 20-foot container. Alternatively, one end of the long central underframe (40) is detachably connected to the front end underframe (10), and the other end of the long central underframe (40) is detachably connected to the rear end underframe (20). The front end underframe (10) and the long central underframe (40) are used to carry one 40-foot container, and the rear end underframe (20) and the long central underframe (40) are used to carry another 40-foot container.

2. The variable-length container flatcar according to claim 1, characterized in that, The short middle base frame (30) includes a short crossbeam (31) and a short middle beam (32) that are connected to each other. The length directions of the short crossbeam (31) and the short middle beam (32) are perpendicular to each other. One end of the short middle beam (32) is detachably connected to the front end base frame (10), and the other end of the short middle beam (32) is detachably connected to the rear end base frame (20).

3. The variable-length container flatcar according to claim 2, characterized in that, The front end frame (10) includes a traction beam (11), an end beam (12), and a bolster beam (13). The end beam (12) and the bolster beam (13) are fixedly connected to the traction beam (11), and the end beam (12) and the bolster beam (13) are spaced apart. One end of the traction beam (11) and one end of the short middle beam (32) are detachably connected.

4. The variable-length container flatcar according to claim 3, characterized in that, One end of the traction beam (11) is fixed with a front connecting plate (71), and one end of the short middle beam (32) is fixed with a middle connecting plate (72). The front connecting plate (71) and the middle connecting plate (72) are detachably connected by a plurality of fasteners.

5. The variable-length container flatcar according to claim 4, characterized in that, One end of the traction beam (11) and the front connecting plate (71) are connected together by multiple reinforcing ribs (73), and / or one end of the short middle beam (32) and the middle connecting plate (72) are connected together by multiple reinforcing ribs (73).

6. The variable-length container flatcar according to claim 3, characterized in that, The front end frame (10) also includes two small side beams (14), which are located on both sides of the traction beam (11). One end of the small side beam (14) is connected to the end beam (12), and the other end of the small side beam (14) is connected to the pillow beam (13). The structure of the rear end frame (20) is the same as that of the front end frame (10).

7. The variable-length container flatcar according to claim 1, characterized in that, The long middle base frame (40) includes a long crossbeam (41) and a long middle beam (42) connected to each other. The length directions of the long crossbeam (41) and the long middle beam (42) are perpendicular to each other. One end of the long middle beam (42) is detachably connected to the front end base frame (10), and the other end of the long middle beam (42) is detachably connected to the rear end base frame (20).

8. The variable-length container flatcar according to claim 1, characterized in that, Two container positioning and locking structures (15) are provided on the front end base frame (10), two container positioning and locking structures (15) are provided on the rear end base frame (20), four container positioning and locking structures (15) are provided on the short middle base frame (30), and four container positioning and locking structures (15) are provided on the long middle base frame (40).

9. The variable-length container flatcar according to claim 1, characterized in that, The variable length container flatcar also includes an air brake device (74), which is mounted on the front end underframe (10) and is used to brake the front bogie (50).

10. The variable-length container flatcar according to claim 1, characterized in that, Both the front bogie (50) and the rear bogie (60) are K6 type bogies, and both the front end underframe (10) and the rear end underframe (20) are equipped with couplers (75).

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