Railway electric signal special fuse tube
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY SHENYANG BUREAU GRP CO LTD JILIN TELECOMM SECTION
- Filing Date
- 2025-08-15
- Publication Date
- 2026-08-07
AI Technical Summary
[0004]目前，现有技术中的熔丝管在使用过程中，由于现有设备在使用时，通常需要对熔丝熔断之后设备内部的熔丝管进行更换，而现有大多设备缺乏存储备用熔丝，从而导致安检员在检测到设备出现熔断之后不便于快速的对设备内部的熔丝进行更换，在一定程度上降低了设备的实用性，且现有设备在安装未使用过的熔丝时，通常将熔丝管放置于设备的内部，并通过设备内部两端的抵紧片对熔丝管进行限制和夹持，而此方法较为容易松动，从而导致设备内部有可能因熔丝管的晃动出现短路并导致设备内部的熔丝熔断，在一定程度上降低了设备的实用性，因此亟需一种铁路电务信号专用熔丝管来解决上述问题
[0012]本实用新型的技术效果和优点：本实用新型通过捏合安装板下端两端外表面的弹性片，使得卡合块脱离定位槽的内部，此时可将安装板的下端于安装框的内部取出，接着可将安装板进行翻转，并使得安装板的上端朝下，使得安装板的上端插设于安装框的内部，并使得安装板上端未使用的保险管同步插设于安装框的内部，并使得安装板上端两端外表面的弹性片插设于插设槽的内部，并使得卡合块卡合于定位槽的内部，对安装板于安装框内部的位置进行定位，从而可快速对保险管进行更换，在一定程度上提高了设备的实用性；
Smart Images
Figure CN224609843U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fuse tube technology; more specifically, it relates to a special fuse tube for railway electrical signaling. Background Technology
[0002] Railway signaling is a key technical system ensuring the safety and efficiency of railway transportation. It uses equipment such as signals, turnouts, and track circuits, employing lights, colors, and numbers to convey information such as train operating conditions, equipment status, and train operation instructions to personnel. Through precise command and control of train operations, it ensures that trains travel according to the prescribed time, speed, and route, effectively preventing train collisions, rear-end collisions, and other accidents. It serves as the "nerve center" for the orderly operation of railway transportation.
[0003] Railway signaling fuses are critical protective components for signal circuits. They typically consist of a fusible element and a fuse tube, with the fusible element often made of a low-melting-point alloy. When an overload or short-circuit fault occurs in the signal circuit, causing an abnormal increase in current, the fusible element quickly melts and breaks the circuit, preventing damage to equipment due to excessive current. This ensures the normal operation of signaling equipment such as relays and switch machines, guaranteeing stable and reliable railway signal transmission, and plays a vital role in maintaining the safety and stability of the railway electrical system.
[0004] Currently, existing fuse tubes have several drawbacks. Firstly, when a fuse blows, the internal fuse tube needs to be replaced. Secondly, most existing equipment lacks spare fuses, making it difficult for inspectors to quickly replace the fuse after a blown fuse is detected. This reduces the equipment's usability. Thirdly, when installing unused fuses, the fuse tube is typically placed inside the equipment and secured by clamps at both ends. This method is prone to loosening, potentially causing a short circuit and fuse blown due to the fuse tube's movement, further reducing usability. Therefore, a dedicated fuse tube for railway electrical signaling is urgently needed to solve these problems. Utility Model Content
[0005] In order to overcome the above-mentioned defects of the prior art, this utility model provides a special fuse tube for railway electrical signaling to solve the problems existing in the background art.
[0006] This utility model provides the following technical solution: a special fuse tube for railway electrical signaling, comprising: an installation frame, wherein the installation frame is provided with a quick-installation structure inside, and the outer surface of the quick-installation structure is provided with a positioning structure, and the positioning structure is provided with a fuse tube inside; the quick-installation structure includes an installation plate, an elastic sheet, a locking block, an insertion groove and a positioning groove; the positioning structure includes a first installation ring, a second installation ring, a first moving groove, a sliding groove, a second moving groove, a hinged clamping plate and a locking post.
[0007] Preferably, the lower outer surface of the mounting plate is inserted into the interior of the mounting frame, and elastic sheets are fixedly connected to the upper and lower outer surfaces of both ends of the mounting plate, and locking blocks are fixedly connected to the outer surfaces of the elastic sheets. Insertion slots are opened inside the inner walls on both sides of the upper end of the mounting frame, and positioning slots are opened inside the insertion slots. This design allows the installation of the fuse to be completed by inserting the mounting plate into the interior of the mounting frame.
[0008] Preferably, the external dimensions of the upper and lower ends of the mounting plate are adapted to the internal dimensions of the mounting frame. This design makes the mounting plate more stable when inserted into the mounting frame.
[0009] Preferably, the position of the elastic piece corresponds to the position of the insertion slot, and the external dimensions of the elastic piece are adapted to the internal dimensions of the insertion slot, and the external dimensions of the locking block are adapted to the internal dimensions of the positioning slot. This design allows the elastic piece to be inserted into the insertion slot.
[0010] Preferably, there are two sets of the first mounting rings, and the two sets of the first mounting rings are respectively fixedly connected to the outer surfaces of the upper and lower ends of one end of the mounting plate. The outer surfaces of the upper and lower ends of the other end of the mounting plate are both fixedly connected to the second mounting rings. The inner wall surfaces of the two sets of the second mounting rings on the side closer to each other are provided with first moving grooves, and the inner surfaces of the first moving grooves are provided with sliding grooves. The inner wall surfaces of the two sets of the first mounting rings on the side closer to each other are provided with second moving grooves. The outer surfaces of the two sets of the first mounting rings on the side away from each other are both hingedly connected to hinged clamping plates. The inner surfaces of the two sets of the first and second mounting rings are respectively inserted with fuses, and the outer surfaces of the two sets of fuses on the side closer to each other are fixedly connected with locking posts. This design allows for the replacement of the fuses inside the first and second mounting rings as needed, and allows for quick installation of the fuses.
[0011] Preferably, the external dimensions of the locking post are adapted to the internal dimensions of the first moving groove, the sliding groove, and the second moving groove. A torsion spring is provided at the hinge connection between the first mounting ring and the hinged abutment plate. The bottom surface of one end of the hinged abutment plate is in contact with the outer surface of the safety tube. The external dimensions of the first mounting ring and the second mounting ring are adapted to the internal dimensions of the mounting frame. This design allows the locking post to move inside the first moving groove, the sliding groove, and the second moving groove.
[0012] The technical effects and advantages of this utility model are as follows: By pinching the elastic pieces on the outer surfaces of the two ends of the lower end of the mounting plate, the locking block is disengaged from the inside of the positioning groove. At this time, the lower end of the mounting plate can be removed from the inside of the mounting frame. Then, the mounting plate can be flipped so that the upper end of the mounting plate faces down, so that the upper end of the mounting plate is inserted into the inside of the mounting frame. At the same time, the unused fuse at the upper end of the mounting plate is inserted into the inside of the mounting frame, and the elastic pieces on the outer surfaces of the two ends of the upper end of the mounting plate are inserted into the insertion groove. The locking block is locked into the inside of the positioning groove, positioning the mounting plate in the inside of the mounting frame. This allows for quick replacement of the fuse and improves the practicality of the equipment to a certain extent. By pressing the hinged abutment plate, the hinged abutment plate is opened by rotating it. Then, the position of the locking pin at one end of the fuse corresponds to the position of the second moving groove inside the first mounting ring. At this time, the fuse can be inserted into the first mounting ring, and the locking pin is inserted into the second moving groove. Then, the fuse can be inserted into the second mounting ring, and the locking pin is inserted into the first moving groove. Subsequently, the fuse can be rotated, causing the locking pin to rotate inside the sliding groove and engage inside the sliding groove. At this time, the hinged abutment plate can be released, allowing it to return to its original position under the elasticity of the torsion spring. The bottom surface of one end of the hinged abutment plate is then attached to the outer surface of the fuse, securing the fuse in position within the first and second mounting rings. This prevents the fuse from shaking inside the equipment and causing a short circuit, thus improving the practicality of the equipment to a certain extent. Moreover, its overall structure is simple and reasonable in design, highly practical, and easy to promote and apply. Attached Figure Description
[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0014] Figure 2 This is an exploded three-dimensional view of the quick-installation structure of this utility model.
[0015] Figure 3 This utility model Figure 2 Enlarged diagram of point A in the middle.
[0016] Figure 4This is an exploded three-dimensional structural diagram of the positioning structure of this utility model.
[0017] The attached figures are labeled as follows: 1. Mounting frame; 2. Quick-installation structure; 21. Mounting plate; 22. Elastic sheet; 23. Engaging block; 24. Insertion slot; 25. Positioning slot; 3. Positioning structure; 31. First mounting ring; 32. Second mounting ring; 33. First moving slot; 34. Sliding slot; 35. Second moving slot; 36. Hinge clamping plate; 37. Engaging post; 4. Safety tube. Detailed Implementation
[0018] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The fuse tube involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0019] Example 1, as Figures 1-4 As shown, this embodiment proposes a special fuse tube for railway electrical signaling, including: a mounting frame 1, a quick-installation structure 2 inside the mounting frame 1, a positioning structure 3 on the outer surface of the quick-installation structure 2, and a fuse tube 4 inside the positioning structure 3; the quick-installation structure 2 includes a mounting plate 21, an elastic sheet 22, a locking block 23, an insertion groove 24, and a positioning groove 25. The outer surface of the lower end of the mounting plate 21 is inserted into the interior of the mounting frame 1, and the outer surfaces of both ends of the mounting plate 21 are fixedly connected to the elastic sheet 22, and the outer surface of the elastic sheet 22 is fixedly connected to the locking block 23. The inner surfaces of both sides of the upper end of the mounting frame 1 are provided with insertion grooves 24, and the inner surfaces of the insertion grooves 24 are provided with positioning grooves 25. The external dimensions of the upper and lower ends of the mounting plate 21 are adapted to the internal dimensions of the mounting frame 1. This design allows the outer surfaces of the upper and lower ends of the mounting plate 21 to be inserted into the interior of the mounting frame 1, and makes the insertion of the outer surfaces of the upper and lower ends of the mounting plate 21 into the interior of the mounting frame 1 more stable. The position of the elastic piece 22 corresponds to the position of the insertion slot 24, and the external dimensions of the elastic piece 22 are adapted to the internal dimensions of the insertion slot 24. The external dimensions of the locking block 23 are adapted to the internal dimensions of the positioning slot 25. This design allows the elastic piece 22 to be inserted into the insertion slot 24, and makes the elastic piece 22 more stable when inserted into the insertion slot 24. At the same time, this design makes the locking block 23 more stable when locked into the positioning slot 25, thereby positioning the mounting plate 21 inside the mounting frame 1.
[0020] Example 2, as Figure 4As shown, based on the same concept as the above embodiment, this embodiment also proposes: the positioning structure 3 includes a first mounting ring 31, a second mounting ring 32, a first moving groove 33, a sliding groove 34, a second moving groove 35, a hinged abutment plate 36, and a locking post 37. Two sets of first mounting rings 31 are provided, and the two sets of first mounting rings 31 are respectively fixedly connected to the outer surfaces of the upper and lower ends of one end of the mounting plate 21. Second mounting rings 32 are fixedly connected to the outer surfaces of the upper and lower ends of the other end of the mounting plate 21. The inner walls of the two sets of second mounting rings 32, which are close to each other, each have a first moving groove 33, and the inner walls of the first moving groove 33 have a sliding groove 34. The inner walls of the two sets of first mounting rings 31, which are close to each other, each have a second moving groove 35. The outer surfaces of the two sets of first mounting rings 31, which are far from each other, are hingedly connected to a hinged abutment plate 36. A safety tube 4 is inserted into the inner walls of the two sets of first mounting rings 31 and second mounting rings 32, and the outer surfaces of the two sets of safety tubes 4, which are close to each other, each have a sliding groove 34. A locking post 37 is fixedly connected. The external dimensions of the locking post 37 are adapted to the internal dimensions of the first moving groove 33, the sliding groove 34, and the second moving groove 35. A torsion spring is provided at the hinge connection between the first mounting ring 31 and the hinged abutment plate 36. The bottom surface of one end of the hinged abutment plate 36 is in contact with the outer surface of the safety tube 4. The external dimensions of the first mounting ring 31 and the second mounting ring 32 are adapted to the internal dimensions of the mounting frame 1. This design allows the locking post 37 to be fixedly connected to the first moving groove 33, the sliding groove 34, and the second moving groove 35. The moving groove 35 moves inside, allowing the locking post 37 to engage inside the sliding groove 34. This design also allows the hinged abutment plate 36 to automatically reset under the elasticity of the torsion spring after hinged rotation, so that the bottom surface of one end of the hinged abutment plate 36 is in contact with the outer surface of the fuse 4, positioning the fuse 4 inside the first mounting ring 31 and the second mounting ring 32, and making the bottom surface of one end of the hinged abutment plate 36 more stable when in contact with the outer surface of the fuse 4. Fuse 4 is a product that can be purchased directly on the market. Its principle, connection method and control method are existing technologies that are well known to those skilled in the art, so they will not be described in detail here.
[0021] Working principle: When using the equipment, pressing the hinged clamping plate 36 causes it to open by hinge rotation. Then, align the position of the locking post 37 at one end of the safety tube 4 with the position of the second moving groove 35 inside one of the two sets of first mounting rings 31. At this point, the safety tube 4 can be inserted into the interior of one of the two sets of first mounting rings 31, and the locking post 37 can be simultaneously inserted into the second moving groove 35. Next, guide the safety tube 4 into the interior of one of the two sets of second mounting rings 32, finally inserting the locking post 37 into the first moving groove 35. Inside 3, the fuse 4 can then be rotated, causing the locking pin 37 to rotate within the sliding groove 34 and engage with it. At this point, the hinged abutment plate 36 can be released, allowing it to self-reset under the elasticity of the torsion spring. This causes the bottom surface of one end of the hinged abutment plate 36 to adhere to the outer surface of the fuse 4, securing the fuse 4 within the first mounting ring 31 and the second mounting ring 32. This completes the assembly of the fuse 4. The above operation is repeated for the other set of first mounting rings 31 and second mounting rings 32. The fuse 4 is installed inside the mounting ring 32. Then, the first mounting ring 31 and the second mounting ring 32 at the lower end of the mounting plate 21 are inserted into the first mounting ring 31, and the elastic piece 22 is inserted into the insertion slot 24, thereby engaging the locking block 23 into the positioning slot 25. This completes the installation of the fuse 4. When the fuse 4 inside the mounting frame 1 melts, the elastic pieces 22 on the outer surfaces of both ends of the lower end of the mounting plate 21 can be pinched to disengage the locking block 23 from the positioning slot 25. At this time, the lower end of the mounting plate 21 can be removed from the mounting frame 1. Then, the mounting plate 21 can be flipped over, and... With the upper end of the mounting plate 21 facing downwards, the upper end of the mounting plate 21 can be inserted into the interior of the mounting frame 1. Simultaneously, the unused fuse 4 at the upper end of the mounting plate 21 is inserted into the interior of the mounting frame 1. The elastic tabs 22 on the outer surfaces of both ends of the upper end of the mounting plate 21 are inserted into the insertion slots 24, and the locking blocks 23 are engaged with the positioning slots 25. This positions the mounting plate 21 within the mounting frame 1, allowing for quick replacement of the fuse 4. Furthermore, a damaged fuse 4 at one end of the mounting plate 21 can be replaced, thus preventing disruption to the next use of the equipment. This is the complete working principle of this utility model.
[0022] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change. Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other. In conclusion, the above are merely preferred embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A special fuse tube for railway electrical signaling, characterized in that, include: Mounting frame (1), the mounting frame (1) is provided with a quick installation structure (2) inside, and the quick installation structure (2) is provided with a positioning structure (3) on its outer surface, and a fuse (4) is provided inside the positioning structure (3). The quick-installation structure (2) includes an installation plate (21), an elastic sheet (22), a locking block (23), an insertion slot (24), and a positioning slot (25); The positioning structure (3) includes a first mounting ring (31), a second mounting ring (32), a first moving groove (33), a sliding groove (34), a second moving groove (35), a hinged abutment plate (36), and a locking post (37).
2. The railway electrical signaling-specific fuse tube according to claim 1, characterized in that: The lower outer surface of the mounting plate (21) is inserted into the interior of the mounting frame (1), and elastic sheets (22) are fixedly connected to the upper and lower outer surfaces of both ends of the mounting plate (21), and locking blocks (23) are fixedly connected to the outer surface of the elastic sheets (22). Insertion slots (24) are opened inside the inner wall surfaces on both sides of the upper end of the mounting frame (1), and positioning slots (25) are opened inside the insertion slots (24).
3. A railway electrical signaling-specific fuse tube according to claim 1, characterized in that: The external dimensions of the upper and lower ends of the mounting plate (21) are compatible with the internal dimensions of the mounting frame (1).
4. A railway electrical signaling-specific fuse tube according to claim 1, characterized in that: The position of the elastic piece (22) corresponds to the position of the insertion slot (24), and the external dimensions of the elastic piece (22) are adapted to the internal dimensions of the insertion slot (24). The external dimensions of the locking block (23) are adapted to the internal dimensions of the positioning slot (25).
5. A railway electrical signaling-specific fuse tube according to claim 1, characterized in that: The first mounting ring (31) is provided in two sets, and the two sets of the first mounting ring (31) are respectively fixedly connected to the outer surface of the upper and lower ends of one end of the mounting plate (21). The outer surface of the upper and lower ends of the other end of the mounting plate (21) is fixedly connected to the second mounting ring (32). The inner wall surface of the two sets of the second mounting ring (32) close to each other is provided with a first moving groove (33), and the inner wall surface of the first moving groove (33) is provided with a sliding groove (34). The inner wall surface of the two sets of the first mounting ring (31) close to each other is provided with a second moving groove (35). The outer surface of the two sets of the first mounting ring (31) away from each other is hingedly connected to a hinged abutment plate (36). The inner wall surface of the two sets of the first mounting ring (31) and the second mounting ring (32) is respectively inserted with a safety tube (4), and the outer surface of the two sets of the safety tube (4) close to each other is fixedly connected with a locking post (37).
6. A railway electrical signaling-specific fuse tube according to claim 1, characterized in that: The external dimensions of the locking post (37) are adapted to the internal dimensions of the first moving groove (33), the sliding groove (34), and the second moving groove (35). A torsion spring is provided at the hinge connection of the first mounting ring (31) and the hinged abutment plate (36). The bottom surface of one end of the hinged abutment plate (36) is in contact with the outer surface of the fuse tube (4). The external dimensions of the first mounting ring (31) and the second mounting ring (32) are adapted to the internal dimensions of the mounting frame (1).