Train lower door rivet and pin combination device
By incorporating limiting rods and locking boxes into the rivet and pin assembly device for the train's lower door, the problem of rivets and pins loosening due to vibration has been solved, resulting in a more stable connection and improved safety of the train's lower door.
Patent Information
- Application Number
- CN202520220150.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-12
- Publication Date
- 2025-12-26
- Estimated Expiration
- 2035-02-12
AI Technical Summary
The rivets and pins on the lower doors of the train are prone to shifting and loosening during operation due to vibration, impact and shear force, which can lead to structural instability and safety risks.
A train lower door rivet and pin combination device was designed. By setting up components such as connectors, limit rods, and anti-loosening stabilizing devices, and utilizing structures such as limit plates, locking boxes, through slots, insertion rods, and screw holes, a stable connection between pins and rivets is achieved, preventing loosening.
This improves the connection stability of pins and rivets, preventing misalignment and loosening caused by vibration and impact, and enhancing the robustness and safety of the lower door structure.
Smart Images
Figure CN223720886U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to combined device technical field especially relates to a train lower door rivet pin combination device. BACKGROUND
[0002] Good sealing of the train lower door is crucial for the running safety of the train and the comfort of the goods or passengers. For example, in a freight train, if the lower door is not well sealed, the goods may leak during transportation, not only causing economic losses, but also possibly affecting the safety and environment along the railway; in a passenger train, poor sealing of the lower door may cause problems such as increased noise inside the train, unstable temperature control, etc., affecting the passenger's riding experience.
[0003] In order to improve the connection reliability of the traditional train lower door, a combination of rivets and pins is often used to connect and fix different parts of the train lower door, ensuring the stability and safety of the lower door. However, over a long period of use, the rivets and pins may shift and loosen due to various vibrations, impacts, and shear forces during work, causing the lower door structure to be unstable and posing certain safety risks. Therefore, the present application proposes a train lower door rivet pin combination device. SUMMARY
[0004] The utility model aims at the problem of rivets and pins in the background art that may shift and loosen due to various vibrations, impacts, and shear forces during work, causing the lower door structure to be unstable and posing certain safety risks, and proposes a train lower door rivet pin combination device.
[0005] The technical solution of the utility model is a train lower door rivet pin combination device, which includes a pin and a rivet, and further includes:
[0006] A connecting piece is arranged between the pin and the rivet, one side of the connecting piece is fixedly installed with a fixed box, a limiting hole is formed in the connecting piece, and a limiting rod is inserted into the limiting hole;
[0007] A anti-loosening stabilizing device is arranged in the fixed box for reinforcing and stabilizing the connecting piece.
[0008] Optionally, one end of the limiting rod is fixedly connected with a connecting plate, the connecting plate is movably installed with a plug rod, and one side of the connecting piece is provided with a screw hole matched with the plug rod.
[0009] Optionally, the lower end of the plug rod is provided with a thread, and the thread and the screw hole are adapted.
[0010] Optionally, the anti-escape stabilizing device comprises a threaded rod rotatably mounted between the inner walls of the fixed box and a guide shaft, a moving block threadedly connected to the threaded rod is slidably sleeved on the guide shaft, a support rod is fixedly mounted on the moving block, and a clamping piece is fixedly connected to the support rod.
[0011] Optionally, one end of the threaded rod penetrates through the outer wall of the fixed box, and a screw cap is fixedly connected to the one end of the threaded rod.
[0012] Optionally, fixed seats are fixedly mounted on the bottom of the inner wall of the connecting piece on both sides of the limiting rod, clamping grooves are formed in the two fixed seats, and clamping blocks matched with the clamping grooves are fixedly mounted on the clamping piece.
[0013] Optionally, a limiting plate is arranged at one end of the limiting rod, a clamping box is fixedly mounted on one side of the connecting piece, and a through groove is formed in the connecting position of the connecting piece and the clamping box, and the size of the through groove is matched with the limiting plate.
[0014] Optionally, a rectangular groove is formed in the connecting position of the fixed box and the connecting piece, and the rectangular groove is used for moving the support rod.
[0015] In summary, the present application has at least one of the following beneficial technical effects:
[0016] The limiting plate can be clamped at the edge of the through groove by rotating the connecting plate and the limiting rod, the inserted limiting rod is fixed by rotating the inserted rod into the screw hole, the connecting part of the pin and the rivet is more stable, and the loosening is prevented.
[0017] Further, the fixed box, the support rod, the moving block, the clamping piece, the clamping block and the fixed seat are arranged, the moving block can drive the clamping piece to move and adjust by rotating the threaded rod, the clamping block can be successfully clamped into the clamping groove of the fixed seat, the reinforcing and limiting between the connecting part of the pin and the rivet and the limiting rod are completed, the overall connection stability is improved, the deviation and loosening caused by various vibrations, impacts and shearing forces in the working process are avoided, the lower door structure is more stable, and the safety is improved. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 The structure of an embodiment of the present application is shown Figure 1 ;
[0019] Figure 2 The structure of an embodiment of the present application is shown Figure 2 ;
[0020] Figure 3 It is a schematic view of the inserted rod connecting structure.
[0021] Figure 4 Fig. 1 is a schematic view of a connecting structure of a clamping piece;
[0022] Figure 5 Fig. 2 is a schematic view of a connecting structure of a limiting plate.
[0023] Fig. 1 is a schematic view of a connecting structure of a clamping piece; Fig. 2 is a schematic view of a connecting structure of a limiting plate. DETAILED DESCRIPTION
[0024] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application.
[0025] The components of the embodiments of the present application generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application.
[0026] Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0027] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.
[0028] It is to be understood that the terms "including", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0029] In the description of the utility model, it needs to explain, unless there is explicit stipulation and limitation, the term "installation", "connection", "connection" should be broad sense understanding, for example, can be fixed connection, can be detachable connection, or integrally connected, can be mechanical connection, can be electrical connection, can be direct connection, can be indirectly connected through intermediate medium, can be the communication of two elements inside. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.
[0030] Embodiment
[0031] As Figures 1-3 The utility model discloses a train lower door rivet pin combination device, including pin 1 and rivet 2, still including the connecting piece 3 of setting between pin 1 and rivet 2, pin 1 and rivet 2 are fixedly connected in connecting piece 3, the rivet 2 is inserted into the one end of pin 1, and the end of rivet 2 is deformed by hammering or riveting tool, and connection is formed.
[0032] In addition, the fixed box 4 is fixedly installed on one side of the connecting piece 3, the limiting hole 5 is formed on the connecting piece 3, the limiting rod 6 is inserted on the limiting hole 5, and the connecting part of pin 1 and rivet 2 is also provided with the limiting hole 5 for the limiting rod 6 to pass through.
[0033] In addition, the limiting rod 6 is fixedly connected with the connecting plate 7 at one end, the plug rod 9 is movably installed on the connecting plate 7, the screw hole 8 matched with the plug rod 9 is formed on one side of the connecting piece 3, the lower end of the plug rod 9 is provided with a screw thread, and the screw thread is matched with the screw hole 8, when the limiting rod 6 is successfully inserted, the plug rod 9 is screwed, the screw thread part of the plug rod 9 is rotated, the plug rod 9 is screwed into the screw hole 8, the fixing of the connecting plate 7 is completed, and the end of the limiting rod 6 is fixedly limited.
[0034] As Figures 2-5As shown, the device further comprises a anti-escape stabilizing device arranged in the fixed box 4 for reinforcing and stabilizing the connecting piece 3, the anti-escape stabilizing device comprises a threaded rod 11 rotatably mounted between the inner walls of the fixed box 4 and a guide shaft 12, the guide shaft 12 is symmetrically arranged on both sides of the threaded rod 11, a moving block 13 threadedly connected with the threaded rod 11 is slidably arranged on the guide shaft 12, the guide shaft 12 guides the movement of the moving block 13, so that the movement of the moving block 13 is smoother and not jammed;
[0035] Further, the moving block 13 is fixedly installed with a supporting rod 15, the supporting rod 15 is fixedly connected with a clamping piece 16, the clamping piece 16 is also provided with a limiting hole 5 through which the limiting rod 6 passes, one end of the threaded rod 11 penetrates through the outer wall of the fixed box 4, and the one end of the threaded rod 11 is fixedly connected with a screw cap 10, a rectangular groove 14 is arranged at the connection between the fixed box 4 and the connecting piece 3, the rectangular groove 14 is used for the movement of the supporting rod 15, and the screw cap 10 is twisted to rotate the threaded rod 11, under the guidance of the guide shaft 12, the moving block 13 drives the supporting rod 15 to move, so that the clamping piece 16 can be moved and adjusted;
[0036] Further, the inner wall bottom of the connecting piece 3 is fixedly installed with a fixed seat 18 on both sides of the limiting rod 6, the two fixed seats 18 are both provided with a clamping groove, the fixed seat 18 is arranged on both sides of the limiting rod 6 and wraps the connecting part of the pin 1 and the rivet 2, the clamping piece 16 is fixedly installed with a clamping block 17 matched with the clamping groove, the clamping piece 16 is moved to the clamping block 17 which is successfully clamped into the clamping groove, so that the clamping and limiting of the pin 1 and the rivet 2 connecting part and the limiting rod 6 are completed, and the connection of the pin 1 and the rivet 2 is more firm and stable;
[0037] It is worth noting that one end of the limiting rod 6 is provided with a limiting plate 20, one side of the connecting piece 3 is fixedly installed with a clamping box 21, a through groove 19 is arranged at the connection between the connecting piece 3 and the clamping box 21, the size of the through groove 19 is matched with the limiting plate 20, the limiting plate 20 and the other end of the limiting rod 6 are detachably connected, and the connection can be achieved through clamping, bolt and other connection modes, when the limiting rod 6 is inserted into the connecting piece, the limiting plate 20 passes through the through groove 19 and enters the clamping box 21, the limiting rod 6 is twisted to rotate the limiting plate 20 and clamp it on the through groove 19, the fixing and limiting of the other end of the limiting rod 6 is completed, the limiting rod 6 itself can also realize anti-escape fixing, and the overall connection stability of the pin 1 and the rivet 2 is significantly improved.
[0038] The working principle of the embodiment is as follows: after the pin 1 and the rivet 2 are connected in the connecting piece 3, the limiting rod 6 is inserted into the limiting hole 5 to enter the connecting piece 3 successfully, and the limiting plate 20 can just enter the clamping box 21, at this time, the connecting plate 7 is screwed to drive the limiting rod 6 to rotate, the limiting plate 20 can just be clamped on the through slot 19, the fixing and limiting of one end of the limiting rod 6 is completed, the plug rod 9 is screwed to drive the threaded part of the plug rod 9 to rotate and be screwed into the screw hole 8, the fixing of the connecting plate 7 is completed, the other end of the limiting rod 6 is fixed and limited, the inserted limiting rod 6 is fixed, the connection stability of the pin 1 and the rivet 2 is improved, the screw cap 10 is screwed, the threaded rod 11 is rotated, under the guiding action of the guide shaft 12, the moving block 13 drives the supporting rod 15 to move, the clamping piece 16 drives the clamping block 17 to be clamped into the clamping groove of the fixing seat 18 successfully, the reinforcement of the limiting rod 6 is further completed, and the pin 1 and the rivet 2 are prevented from falling off.
[0039] The above specific embodiments are only several optional embodiments of the utility model, based on the technical scheme of the utility model and the related inspiration of the above embodiments, the person skilled in the art can make various alternative improvements and combinations on the above specific embodiments.
Claims
1. A train door rivet pin combination device comprising a pin (1) and a rivet (2), characterized in that, Also include: The connecting piece (3) is fixedly installed on one side of the connecting piece (3), and the connecting piece (3) is provided with a limiting hole (5), and the limiting hole (5) is provided with a limiting rod (6); Anti-stable device, the anti-stable device is arranged in the fixed box (4) for the reinforcement of the connecting piece (3).
2. A train door rivet pin combination device according to claim 1, wherein, One end of the limiting rod (6) is fixedly connected with the connecting plate (7), the connecting plate (7) is movably installed with the plug rod (9), and the connecting piece (3) is provided with a screw hole (8) matched with the plug rod (9) on one side.
3. A train door rivet pin combination device according to claim 2, wherein, The lower end of the plug rod (9) is provided with a screw thread, and the screw thread and the screw hole (8) are matched.
4. The train door rivet pin combination device of claim 1, wherein, The anti-stable device includes a threaded rod (11) and a guide shaft (12) rotatably installed between the inner walls of the fixed box (4), the guide shaft (12) is slidably sleeved with a moving block (13) threaded with the threaded rod (11), the moving block (13) is fixedly installed with a supporting rod (15), and the supporting rod (15) is fixedly connected with a clamping piece (16).
5. A train door rivet pin combination device according to claim 4, wherein, One end of the threaded rod (11) penetrates the outer wall of the fixed box (4), and the threaded rod (11) is fixedly connected with a rotating cap (10).
6. A train door rivet pin combination device according to claim 4, wherein, The inner wall bottom of the connecting piece (3) is fixedly installed with a fixed seat (18) on both sides of the limiting rod (6), and the two fixed seats (18) are provided with a clamping groove, and the clamping piece (16) is fixedly installed with a clamping block (17) matched with the clamping groove.
7. The train door rivet pin combination device of claim 1, wherein, One end of the limiting rod (6) is provided with a limiting plate (20), one side of the connecting piece (3) is fixedly installed with a clamping box (21), and the connecting piece (3) and the clamping box (21) are provided with a communicating groove (19) at the connecting position, and the size of the groove (19) is matched with the limiting plate (20).
8. The train door rivet pin combination device of claim 4, wherein, The connecting position of the fixed box (4) and the connecting piece (3) is provided with a rectangular groove (14), and the rectangular groove (14) is used for moving the supporting rod (15).