Novel assembly structure for boxcar
The design of the baffle plate with guiding, limiting and sealing structure solves the corrosion problem caused by exposed rivets, and improves waterproof performance and facilitates disassembly.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING CAIDE MASCH MFG CO LTD
- Filing Date
- 2025-06-25
- Publication Date
- 2026-05-01
AI Technical Summary
In the existing waterproof structure of truck bodies, the rivets of the diversion baffles are exposed, making them susceptible to water erosion and corrosion, which affects subsequent disassembly and maintenance.
A water baffle with guiding, limiting and sealing structures was designed. The cooperation of the guide block and the limiting block can stabilize and seal the rivets, prevent rainwater and moisture from entering, reduce the risk of corrosion, and make disassembly easy.
It effectively isolates rainwater and moisture, reduces the risk of rivet corrosion, ensures reliable protection, and improves the ease of maintenance.
Smart Images

Figure CN224184364U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of carriage assembly technology, specifically a novel assembly structure for freight car carriages. Background Technology
[0002] The cargo box is generally a hexagonal structure, mainly composed of six panels and eight corner protectors. When assembling the panels, the joints between two panels are connected by corner protectors. In order to prevent water from entering the cargo box, the existing waterproof structure of the cargo box is to apply a sealant to the contact surface between the corner protectors and the top plate (or bottom plate).
[0003] According to announcement number CN214729164U, a novel assembly structure for a truck body includes a roof panel, side panels, and a floor panel. A top waterproof structure is provided between the roof panel and the side panels, comprising a first top partition, a second top partition, and a third top partition. A bottom waterproof structure is provided between the side panels and the floor panel, comprising a first bottom partition, a second bottom partition, and a third bottom partition. This invention effectively prevents water from entering the truck body from the joints between the roof panel and the side panels, and between the side panels and the floor panel, by adding top and bottom waterproof structures between the roof panel, side panels, and floor panel, thus improving the waterproof performance of the truck body.
[0004] The aforementioned device effectively prevents water from entering the cargo compartment from the joint between the top and side panels of the cargo compartment, and the joint between the side panels and the bottom panel of the cargo compartment, thus improving the waterproof performance of the cargo compartment. According to the instruction manual and the attached drawings, the rivets at one end of the diversion baffle are exposed and are easily corroded by water, which will affect the subsequent disassembly and maintenance. Utility Model Content
[0005] The purpose of this utility model is to solve the problem that the above-mentioned device can effectively prevent water from entering the truck body from the connection between the top plate and the side plate of the truck body, and the connection between the side plate and the bottom plate of the truck body, thus improving the waterproof performance of the truck body. According to the instruction manual and the attached drawings, the rivets at one end of the diversion baffle are exposed and easily corroded by water, which affects the later disassembly and maintenance. Therefore, this utility model provides a new assembly structure for truck bodies.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a novel assembly structure for a truck body, comprising a truck body roof panel and truck body side panels, a front side panel fixedly disposed on one side of the truck body roof panel and truck body side panels, a truck body fixedly disposed below the truck body side panels, a flow guide baffle disposed in the middle of the truck body roof panel and truck body side panels, rivets evenly disposed on one end of the flow guide baffle, a water baffle for protecting the rivets disposed on one end of the flow guide baffle, a slot 1 provided on one end of the water baffle, a slot 2 provided on one end of the flow guide baffle, guide grooves provided at the top of both slot 2 and slot 1, a limiting arc groove provided inside slot 2, and the limiting arc groove communicating with the guide groove inside slot 2, a rotating disk inserted into one end of the water baffle, and a rod fixedly installed on one end of the rotating disk, and a guide block fixedly installed on one end of the rod, the guide block being adapted to the guide groove.
[0007] As a further embodiment of this utility model: a sealing groove is provided at one end of the baffle plate and on the outer periphery of the slot, and a sealing block is fixedly installed at one end of the rotating disk, and the sealing block is adapted to the sealing groove.
[0008] As a further improvement of this utility model: a sliding groove is provided at one end of the rotating disk, and a limiting block is slidably connected inside the sliding groove; a limiting groove is provided at one end of the baffle plate, and the limiting groove is adapted to the limiting block.
[0009] As a further embodiment of this utility model: a reset spring is fixedly installed inside the slide groove, and one end of the reset spring is fixedly installed with the limiting block; a connecting rod is slidably connected to one end of the rotating disk, and one end of the connecting rod passes through the slide groove and is fixedly installed with the limiting block.
[0010] As a further embodiment of this utility model: a connecting block is fixedly installed at one end of the connecting rod, and a pull ring is fixedly installed at one end of the connecting block; a second sealing groove is opened at one end of the rotating disk; a second sealing block is fixedly installed at one end of the connecting block, and the second sealing block is adapted to the second sealing groove.
[0011] As a further improvement of this utility model: a top partition is provided on one side of the carriage roof and the diversion baffle, and a top partition is provided on one side of the carriage side and the diversion baffle.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] This utility model achieves protection through a guiding, limiting, and sealing structure. During installation, the guide block is positioned along the guide groove, and the rotating disk rotates to make the guide block engage with the limiting arc groove to complete the initial fixation. Pulling the pull ring triggers the limiting block to engage with the limiting groove, and the sealing block is embedded in the sealing groove to form multiple stable and sealing effects, effectively isolating rainwater and moisture and reducing the risk of rivet corrosion. During disassembly, pulling the pull ring releases the limiting, and rotating in the opposite direction allows for easy disassembly. The entire structure is easy to operate, ensuring both the reliability of protection and the convenience of maintenance. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall front-end structure of this utility model;
[0015] Figure 2 This is a schematic diagram of the overall rear-end structure of this utility model;
[0016] Figure 3 This is a schematic diagram of the structure at point A in this utility model;
[0017] Figure 4 This is a schematic diagram of the unfolded structure of the diversion baffle and water baffle at point A in this utility model;
[0018] Figure 5 This is a schematic diagram of the structure at point B in this utility model;
[0019] Figure 6 This is a schematic diagram of the structure of slot two at point A in this utility model;
[0020] Figure 7 This is a cross-sectional structural diagram of the rotating disk at point A in this utility model.
[0021] In the diagram: 1. Cargo roof panel; 2. Cargo side panel; 3. Drainage baffle; 4. Top partition one; 5. Top partition two; 6. Rivet; 7. Water baffle; 8. Slot one; 9. Sealing groove one; 10. Insert rod; 11. Guide block; 12. Rotating disc; 13. Guide groove; 14. Slot two; 15. Limiting arc groove; 16. Sealing block one; 17. Slide groove; 18. Limiting block; 19. Return spring; 20. Limiting groove; 21. Connecting rod; 22. Connecting block; 23. Pulling ring; 24. Sealing block two; 25. Sealing groove two; 26. Car front side panel; 27. Cargo floor panel; 28. Cargo body. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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 utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. The embodiments of this utility model will be described below based on its overall structure.
[0024] Reference Figures 1 to 5 In this embodiment of the utility model, a novel assembly structure for a truck body includes a truck body roof panel 1 and a truck body side panel 2. A front side panel 26 is fixedly installed on one side of the truck body roof panel 1 and the truck body side panel 2. A truck body floor 27 is fixedly installed below the truck body side panel 2. A truck body 28 is fixedly installed at one end of the front side panel 26 and the truck body floor 27. A flow guide baffle 3 is provided in the middle of the truck body roof panel 1 and the truck body side panel 2. Rivets 6 are evenly arranged at one end of the flow guide baffle 3. A protective device is provided at one end of the flow guide baffle 3 to protect the rivets 6. The baffle plate 7 has a slot 8 at one end and a slot 14 at one end. Both the slot 14 and the slot 8 have guide grooves 13 at their top. The slot 14 has a limiting arc groove 15 inside and the limiting arc groove 15 is connected to the guide groove 13 inside the slot 14. A rotating disk 12 is inserted into one end of the baffle plate 7 and a rod 10 is fixedly installed at one end of the rotating disk 12. A guide block 11 is fixedly installed at one end of the rod 10 and the guide block 11 is adapted to the guide groove 13.
[0025] The above-mentioned scheme is adopted: the top plate 1, the side plate 2, and the diversion baffle 3 are all prior art referenced in the prior art documents and are not described in detail in this application. The diversion baffle 3 is made of stainless steel by bending. The slot 2 14 and the guide groove 13 are laser-cut and have a rough surface. The baffle 7 is made of PP plastic. The slot 1 8 corresponds to the size of the slot 2 14. The rotating disk 12 is injection molded from PA66+30%GF. The insertion rod 10 and the guide block 11 are integrally formed. The guide block 11 and the guide groove 13 are fitted with a clearance. The limiting arc groove 15 is connected to the guide groove 13. After the insertion rod 10 is inserted, it is rotated 90 degrees and the guide block 11 is inserted into the limiting arc groove 15 to achieve circumferential locking. It can be separated by rotating in the opposite direction during disassembly.
[0026] Reference Figures 1 to 5 A sealing groove 9 is provided at one end of the baffle plate 7 and on the outer periphery of the slot 8. A sealing block 16 is fixedly installed at one end of the rotating disk 12, and the sealing block 16 is adapted to the sealing groove 9.
[0027] Using the above scheme: the sealing groove 9 of the baffle plate 7 is injection molded, and the groove wall is chamfered to facilitate the embedding of the sealing block 16. The sealing block 16 is made of EPDM rubber molded and vulcanized onto the rotating disk 12.
[0028] (PA66+30%GF) end face, the sealing block-16 has a rectangular cross section. During assembly, the sealing block-16 is inserted into the sealing groove-9 to form a waterproof barrier and prevent rainwater from seeping in.
[0029] Reference Figures 1 to 5 One end of the rotating disk 12 is provided with a sliding groove 17, and a limit block 18 is slidably connected inside the sliding groove 17. One end of the baffle plate 7 is provided with a limit groove 20, and the limit groove 20 is adapted to the limit block 18. A return spring 19 is fixedly installed inside the sliding groove 17, and one end of the return spring 19 is fixedly installed to the limit block 18. One end of the rotating disk 12 is slidably connected with a connecting rod 21, and one end of the connecting rod 21 passes through the sliding groove 17 and is fixedly installed to the limit block 18. One end of the connecting rod 21 is fixedly installed with a connecting block 22, and one end of the connecting block 22 is fixedly installed with a pull ring 23. One end of the rotating disk 12 is provided with a second sealing groove 25, and one end of the connecting block 22 is fixedly installed with a second sealing block 24, and the second sealing block 24 is adapted to the second sealing groove 25.
[0030] The above scheme is adopted: the surface of the slide groove 17 of the rotating disk 12 is rough and the material is PA66+30%GF. The limiting block 18 is made of 45# steel and is clearance-fitted with the slide groove. The bottom of the limiting groove 20 of the baffle plate 7 is rounded. The reset spring 19 is made of steel to provide thrust. The connecting rod 21 is made of stainless steel and is slidingly fitted with the linear bearing of the rotating disk 12. The pull ring 23 is covered with TPE. The second sealing groove 25 surrounds the slide groove 17. The second sealing block 24 is made of silicone and has an O-shaped cross section. During operation, the pull ring 23 overcomes the spring force and drives the limiting block 18 out of the limiting groove 20. After the rotating disk rotates 90°, it is released, and the limiting block 18 automatically snaps into the limiting groove 20 to achieve locking.
[0031] Reference Figures 1 to 5 A top partition 4 is provided on one side of the car roof 1 and the diversion baffle 3, and a top partition 5 is provided on one side of the car side 2 and the diversion baffle 3.
[0032] The above-mentioned scheme is adopted: Top partition 4 and top partition 5 are both prior art referenced in the prior art documents, and are not described in detail in this application.
[0033] The working principle of this utility model is as follows: When installing the baffle plate 7, first align the guide block 11 at one end of the insert rod 10 on the rotating disk 12 with the guide groove 13 at the top of the slot 8 of the baffle plate 7 and the slot 14 of the diversion baffle 3. Insert the insert rod 10 into the slot 8 and the slot 14 simultaneously along the guide groove 13. When the guide block 11 slides to the point where the guide groove 13 and the limiting arc groove 15 intersect, rotate the rotating disk 12 to make the guide block 11 rotate into the limiting arc groove 15. At this time, the baffle plate 7 and the diversion baffle 3 are initially fixed. Then, pull the pulling ring 23. The pulling ring 23 drives the connecting block 22 and the connecting rod 21 to move, so that the limiting block 18 slides in the slide groove 17 and compresses the return spring 19. When the limiting block 18 is aligned with the limiting groove 20 of the baffle plate 7, release the pulling ring 23. Under the elastic force of the return spring 19, the limiting block 18 slides in the slide groove 17 and compresses the return spring 19. The positioning block 18 quickly engages in the limiting groove 20, further securing the rotating disk 12 and thus stabilizing the baffle 7. Simultaneously, the sealing block 16 on the rotating disk 12 is embedded in the sealing groove 9 of the baffle 7, and the sealing block 24 on the connecting block 22 is embedded in the sealing groove 25 of the rotating disk 12, forming a multi-layer sealing structure. After installation, the baffle 7 completely covers the rivet 6. With the multi-layer sealing design, it effectively prevents rainwater and moisture from entering, reduces the contact between the rivet 6 and external corrosive substances, and lowers the risk of corrosion. If the baffle 7 needs to be removed, pull the pulling ring 23 again to disengage the limiting block 18 from the limiting groove 20. Then, rotate the rotating disk 12 in the opposite direction to rotate the guide block 11 back to the guide groove 13. Finally, pull out the rotating disk 12 and the baffle 7. Through the guiding, limiting, and sealing design, the protection of the rivet 6 is achieved.
[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A novel assembly structure for a freight car body, comprising a car body roof panel (1) and a car body side panel (2), wherein a front side panel (26) is fixedly disposed on one side of the car body roof panel (1) and the car body side panel (2), a car body floor panel (27) is fixedly disposed below the car body side panel (2), a freight car body (28) is fixedly disposed at one end of the front side panel (26) and the car body floor panel (27), a flow guide baffle (3) is disposed in the middle of the car body roof panel (1) and the car body side panel (2), and rivets (6) are evenly disposed at one end of the flow guide baffle (3), characterized in that, The diversion baffle (3) is provided with a water baffle (7) to protect the rivets (6) at one end. The water baffle (7) has a slot 1 (8) at one end and a slot 2 (14) at one end. The top of both the slot 2 (14) and the slot 1 (8) has a guide groove (13). The slot 2 (14) has a limiting arc groove (15) inside, and the limiting arc groove (15) is connected to the guide groove (13) inside the slot 2 (14). A rotating disk (12) is inserted into one end of the water baffle (7), and a rod (10) is fixedly installed at one end of the rotating disk (12). A guide block (11) is fixedly installed at one end of the rod (10), and the guide block (11) is adapted to the guide groove (13).
2. The novel assembly structure for a freight car body according to claim 1, characterized in that, The water baffle (7) has a sealing groove (9) at one end and on the outer periphery of the slot (8), and a sealing block (16) is fixedly installed at one end of the rotating disk (12), and the sealing block (16) is adapted to the sealing groove (9).
3. A novel assembly structure for a freight car body according to claim 2, characterized in that, The rotating disk (12) has a sliding groove (17) at one end, and a limiting block (18) is slidably connected inside the sliding groove (17). The baffle plate (7) has a limiting groove (20) at one end, and the limiting groove (20) is adapted to the limiting block (18).
4. A novel assembly structure for a freight car body according to claim 3, characterized in that, A reset spring (19) is fixedly installed inside the slide groove (17), and one end of the reset spring (19) is fixedly installed with the limiting block (18). One end of the rotating disk (12) is slidably connected to a connecting rod (21), and one end of the connecting rod (21) passes through the slide groove (17) and is fixedly installed with the limiting block (18).
5. A novel assembly structure for a freight car body according to claim 4, characterized in that, A connecting block (22) is fixedly installed at one end of the connecting rod (21), and a pull ring (23) is fixedly installed at one end of the connecting block (22). A sealing groove (25) is opened at one end of the rotating disk (12), and a sealing block (24) is fixedly installed at one end of the connecting block (22), and the sealing block (24) is compatible with the sealing groove (25).
6. A novel assembly structure for a truck bed according to claim 5, wherein A top partition (4) is provided on one side of the carriage roof (1) and the diversion baffle (3), and a top partition (5) is provided on one side of the carriage side panel (2) and the diversion baffle (3).