An adjustable fixture for a train air pipe
Patent Information
- Application Number
- CN202522224564.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-21
- Publication Date
- 2026-09-11
- Estimated Expiration
- 2035-10-21
AI Technical Summary
其中,尾部风管吊挂作业作为列车编组的关键工序,当前仍沿用铁丝手动固定在列车车钩的传统方式,不仅操作流程繁琐,更暗藏显著安全隐患
本实用新型通过安全扣、锁线器、钢丝绳及锁紧组件的相互配合,实现了列车风管与车钩之间的快速连接与分离,提高了连接的牢固性和稳定性,防止风管在列车运行过程中发生松动、下垂或脱落等问题,提升了作业安全性;另外,装置通过锁线器可自由调节两根钢丝绳线体的相对长度,能够根据风管实际吊挂高度与车钩之间的距离灵活适配。有效提升了装置的通用性与适配性,降低了列车维护过程中的配件储备成本与更换难度,大幅缩短了安装与维护时间,降低了工作人员的操作强度。
Smart Images

Figure CN224739364U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of train duct fixing tools, and more specifically, to an adjustable fixing device for train ducts. Background Technology
[0002] With the continuous increase in the volume of self-owned freight transport within the jurisdiction, the number of self-owned trains and the frequency of operations have increased significantly, placing higher demands on the efficiency and safety of train formation. Among these, the rear air duct hoisting operation, a key process in train formation, still relies on the traditional method of manually fixing it to the train coupler with wire. This not only involves a cumbersome operation process but also harbors significant safety hazards. Due to the lack of unified standards for the hanging height and sturdiness of air ducts, problems such as sagging, loosening, and even falling off of air ducts often occur in actual operations. Especially in severe weather conditions such as rain, snow, and strong winds, this not only further increases the difficulty of operation but also significantly increases the labor intensity of on-site staff, directly leading to a decline in work efficiency and potentially posing a threat to the safety of subsequent train operations. It is no longer suitable for the current operational needs under the growth of transport volume. Utility Model Content
[0003] The purpose of this invention is to solve the problems mentioned in the background art and to propose an adjustable fixing device for train air ducts.
[0004] The technical solution adopted by this utility model to solve its technical problem is: An adjustable fixing device for train air ducts includes a safety buckle for connection to a train air duct connector, with a steel wire rope wound around the end of the safety buckle to divide the steel wire rope into two wires; a locking device is connected to both wires to adjust the relative length between the two wires; and one wire is fixedly connected to a locking assembly for connection with a train coupler, while the other wire is detachably connected to the locking assembly.
[0005] Furthermore, the locking assembly includes a fixing block, which is fixedly connected to one of the wires. The fixing block has a through hole for connecting another wire, and when the other wire is connected to the through hole, it is locked by a fastening bolt on the fixing block.
[0006] Furthermore, the locking assembly includes a fixing block, which is fixedly connected to one of the wires. The fixing block has a through hole, into which a long screw is inserted to connect to another wire. When the long screw is inserted into the through hole, it is locked by a fastening nut located on one side of the fixing block.
[0007] Furthermore, the above solution includes a rubber block on the side of the fixing block that connects to one of the wires to reduce rigid contact between the locking assembly and the coupler.
[0008] Furthermore, the outer surface of the rubber block is curved to improve the contact effect with the coupler.
[0009] Furthermore, the above solution involves connecting the safety buckle and the wire rope via a loop assembly to improve the contact effect between the wire rope and the safety buckle during length adjustment.
[0010] Furthermore, the above-mentioned solution includes a fixed ring fixedly disposed at the tail of the safety buckle, and a plurality of balls are disposed in the circumferential direction of the inner ring of the fixed ring to form a rolling surface for contacting the wire rope in the inner ring of the fixed ring.
[0011] Compared with the prior art, the beneficial effects of this utility model are: This invention achieves rapid connection and separation between the train's air duct and the coupler through the coordinated use of a safety buckle, a wire locking device, steel wire ropes, and locking components. This improves the strength and stability of the connection, preventing the air duct from loosening, sagging, or falling off during train operation, thus enhancing operational safety. Furthermore, the device allows for free adjustment of the relative lengths of the two steel wire ropes via the wire locking device, enabling flexible adaptation based on the actual hanging height of the air duct and the distance between the air duct and the coupler. This effectively enhances the device's versatility and adaptability, reduces the cost of spare parts and the difficulty of replacement during train maintenance, significantly shortens installation and maintenance time, and reduces the workload of personnel. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the locking assembly. Figure 3 This is a schematic diagram showing the installation position of the long screw. Figure 4 This is a schematic diagram showing the installation location of the rubber block; Figure 5 This is a schematic diagram of the ring assembly. The components include: 1. Safety buckle; 2. Steel wire rope; 3. Cable lock; 4. Locking assembly; 41. Fixing block; 411. Through hole; 42. Fastening bolt; 43. Long screw; 44. Fastening nut; 5. Rubber block; 6. Ring assembly; 61. Fixing ring; 62. Ball bearing. Detailed Implementation
[0013] The technical solutions of the present utility model 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 the present utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model. The present utility model will be further described with reference to the accompanying drawings and embodiments: An adjustable fixing device for train ventilation ducts, see attached figure. Figure 1 As shown, it includes a safety buckle 1, which is used to hook and connect with the train air duct connector. A steel wire rope 2 is wound around the end of the safety buckle 1 to divide the steel wire rope 2 into two lines. A locking device 3 is connected to both lines to adjust the relative length between the two lines. The locking device 3 is a commonly used technology in the present invention, and will not be described in detail here. In addition, one line is fixedly connected to a locking component 4, which is used to connect with the train coupler. The other line is detachably connected to the locking component 4.
[0014] In the specific implementation of this utility model, the safety buckle 1 is accurately attached to the train air duct connector, ensuring that the buckle 1's latch is fully engaged with the corresponding part of the connector. Then, based on the required hanging height of the air duct and the actual distance between the coupler, the relative lengths of the two lines are adjusted by operating the cable locking device 3. Subsequently, the locking component 4 is aligned with the connection part of the train coupler, and the locking component 4 is hooked into the coupler position. Finally, the other line is fixedly connected to the locking component 4, thus completing the connection between the air duct and the coupler. When it is necessary to disassemble the air duct, simply remove the end with the safety buckle 1, and the safety buckle 1 can be separated from the connector, thereby completing the separation of the air duct.
[0015] In one embodiment of the above solution, specifically, please refer to the appendix. Figure 1 and attached Figure 2 As shown, the locking assembly 4 includes a fixing block 41, which is fixedly connected to one of the wires. The fixing block 41 has a through hole 411 for connecting another wire, and when the other wire is connected to the through hole 411, it is locked by a fastening bolt 42 provided on the fixing block 41.
[0016] In this scheme, a steel wire rope 2 is fixedly connected to a fixing block 41, and a through hole 411 is opened for another wire rope to pass through. The wire rope is then locked by the fastening bolt 42 on the fixing block 41. The structure is simple and the locking is reliable. The tension of the wire rope can be flexibly adjusted to adapt to different installation requirements. At the same time, the easy disassembly and assembly can improve the work efficiency. When in use, one of the wire ropes fixed by the fixing block 41 is first wrapped around the coupler. Then, the other wire rope is passed through the through hole 411 to form a loop. After tightening the other wire rope, the fastening bolt 42 is tightened to complete the locking and achieve a stable connection between the air duct and the coupler.
[0017] In another embodiment, specifically, refer to the appendix. Figure 3 As shown, the locking assembly 4 includes a fixing block 41, which is fixedly connected to one of the wires. The fixing block 41 has a through hole 411, into which a long screw 43 is inserted to connect to another wire. When the long screw 43 is inserted into the through hole 411, it is locked by a fastening nut 44 located on one side of the fixing block 41.
[0018] In the above solution, considering the rigid contact between the locking assembly 4 and the coupler, therefore, refer to the appendix. Figure 4 As shown, a rubber block 5 is provided on the side of the fixing block 41 that is connected to one of the wires, and the outer side of the rubber block 5 is arc-shaped to improve the contact effect with the coupler.
[0019] In the above solution, considering the contact effect between the wire rope 2 and the safety buckle 1 during the length adjustment process, therefore, refer to the appendix. Figure 5 As shown, the safety buckle 1 and the wire rope 2 are connected by a ring assembly 6. Specifically, the ring assembly 6 includes a fixed ring 61 fixedly disposed at the tail of the safety buckle 1, and a plurality of balls 62 are disposed in the circumferential direction of the inner ring of the fixed ring 61 to form a rolling surface for contacting the wire rope 2 in the inner ring of the fixed ring 61.
[0020] In this design, by setting several balls 62 in the inner circumferential direction of the fixed ring 61 to form a rolling surface, the contact between the wire rope 2 and the fixed ring 61 changes from sliding to rolling. This significantly reduces the frictional loss between the wire rope 2 and the safety buckle 1 when adjusting the length, extends the service life of the wire rope 2, reduces the adjustment resistance, makes operation easier for workers, and ensures the stability of the wire rope 2 during adjustment, avoiding positional deviation caused by friction. In use, simply pass the wire rope 2 through the fixed ring 61 with the balls 62, and the length of the wire rope 2 can be flexibly adjusted by utilizing the rolling characteristics of the balls 62, without the need for additional complicated operations, thus meeting the high-efficiency requirements of train duct hanging operations.
[0021] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The descriptions of the above embodiments and specifications are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. An adjustable fixing device for train ventilation ducts, characterized in that: It includes a safety buckle (1) for connecting to the train air duct connector, with a steel wire rope (2) wound around the end of the safety buckle (1) to divide the steel wire rope (2) into two wires; a locking device (3) is connected to both wires to adjust the relative length between the two wires; and one wire is fixedly connected to a locking assembly (4) for connecting to the train coupler, while the other wire is detachably connected to the locking assembly (4).
2. The adjustable fixing device for train air ducts according to claim 1, characterized in that: The locking assembly (4) includes a fixing block (41), which is fixedly connected to one of the wires. The fixing block (41) has a through hole (411) for connecting another wire. When the other wire is connected to the through hole (411), it is locked by a fastening bolt (42) provided on the fixing block (41).
3. The adjustable fixing device for train ventilation ducts according to claim 1, characterized in that: The locking assembly (4) includes a fixing block (41), which is fixedly connected to one of the wires. The fixing block (41) has a through hole (411), and a long screw (43) is inserted into the through hole (411) to connect to another wire. When the long screw (43) is inserted into the through hole (411), it is locked by a fastening nut (44) on one side of the fixing block (41).
4. An adjustable fixing device for train ventilation ducts according to claim 2 or 3, characterized in that: A rubber block (5) is provided on the side of the fixing block (41) that is connected to one of the wires.
5. An adjustable fixing device for train ventilation ducts according to claim 4, characterized in that: The outer surface of the rubber block (5) is curved.
6. An adjustable fixing device for train ventilation ducts according to claim 5, characterized in that: The safety buckle (1) is connected to the wire rope (2) via a ring assembly (6).
7. An adjustable fixing device for train ventilation ducts according to claim 6, characterized in that: The ring assembly (6) includes a fixed ring (61) fixedly disposed at the tail of the safety buckle (1). A plurality of balls (62) are disposed in the inner circumferential direction of the fixed ring (61) to form a rolling surface for contacting the wire rope (2) in the inner circumference of the fixed ring (61).