Rail vehicle underfloor piping protection support frame
By installing a protective support frame at the bottom of the rail vehicle, and using pipeline protection boxes, partitions, and clamping components, the problem of pipeline loosening and wear caused by vibration and impact was solved, achieving stable positioning and safe operation of the pipeline.
Patent Information
- Application Number
- CN202522056084.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-24
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-09-24
AI Technical Summary
The pipelines at the bottom of rail vehicles are prone to loosening and wear due to vibration and external impact, leading to increased malfunctions and affecting safe operation.
The protective support frame, consisting of an L-shaped plate and fixing components, includes a pipeline protection box, partition baffles, protective netting, and clamping components. It ensures pipeline stability through rubber ring protection, partition baffle isolation, guide rod guidance, and locking screw fixation.
It effectively prevents pipeline wear and entanglement, ensures stable pipeline positioning, improves operational safety, and reduces maintenance costs.
Smart Images
Figure CN224932299U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rail transit technology, and in particular to a protective support frame for pipelines at the bottom of rail vehicles. Background Technology
[0002] In the field of rail transit, subway, light rail, and high-speed rail vehicles have a large number of critical pipelines laid on their undersides, including power cables, hydraulic lines, cooling water pipes, and brake lines. These pipelines are responsible for core functions such as power transmission, braking control, and equipment cooling, directly affecting the safe operation of rail vehicles. During operation, the underside of rail vehicles is constantly subjected to vibration and impact, and is also susceptible to impacts from foreign objects such as gravel and mud around the track. Furthermore, if different types of pipelines are arranged haphazardly, they are prone to wear or malfunction due to mutual friction and entanglement.
[0003] However, traditional rail vehicles' under-floor pipelines are only fixed with simple brackets, lacking protective structures. This not only makes them vulnerable to impacts from external objects but also easily leads to pipeline loosening due to vehicle vibrations, resulting in pipeline damage, leaks, and other malfunctions. This increases maintenance costs, can disrupt normal rail vehicle operation, and may even cause safety accidents. Therefore, we have introduced a protective support frame for rail vehicle under-floor pipelines. Utility Model Content
[0004] The main purpose of this utility model is to provide a protective support frame for pipelines at the bottom of rail vehicles, which can effectively solve the problems in the background art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A pipeline protection support frame for the bottom of a rail vehicle includes a first L-shaped plate and a second L-shaped plate. The upper ends of the first L-shaped plate and the second L-shaped plate each have two through-hole fixing holes. A pipeline protection component is fixedly connected between the first L-shaped plate and the second L-shaped plate. A first fixing component is fixedly connected to the front end of the pipeline protection component, and a second fixing component is fixedly connected to the rear end of the pipeline protection component. The first fixing component and the second fixing component have the same structure and are distributed in a mirror image arrangement.
[0006] Preferably, the pipeline protection assembly includes a pipeline protection box, with a plurality of pipeline partition baffles fixedly connected to the front and rear inner walls of the pipeline protection box. A bottom protective mesh is embedded in the lower end of the pipeline protection box. A plurality of through holes are opened at both the front and rear ends of the pipeline protection box. A through hole is opened at the right end of each of the pipeline partition baffles. Rubber rings are fixedly fitted into each of the through holes and the through holes.
[0007] By adopting the above technical solutions: protective boxes and protective nets prevent foreign object impacts, partition baffles isolate pipelines to prevent tangling, wire holes and through holes provide for pipeline installation, and rubber rings protect pipelines from wear.
[0008] Preferably, the plurality of pipeline partitions are distributed at equal intervals in pairs, and the plurality of wire holes and the plurality of pipeline partitions are distributed alternately in pairs.
[0009] By adopting the above technical solutions, we can ensure uniform separation, reasonable placement of wiring holes, and facilitate the classification, installation, and layout of pipelines.
[0010] Preferably, the first fixing component includes a first fixing plate, a second fixing plate, and a locking screw. Two guide rods are fixedly connected at the corners between the first fixing plate and the second fixing plate. A movable plate is movably sleeved on both guide rods. A spring is fixedly connected at the corners between the movable plate and the second fixing plate. A plurality of first arc-shaped clamping plates are fixedly connected to the upper end of the second fixing plate. A plurality of second arc-shaped clamping plates are fixedly connected to the lower end of the movable plate. Arc-shaped rubber pads are fixedly sleeved inside the plurality of first arc-shaped clamping plates and the plurality of second arc-shaped clamping plates. The rear ends of the first fixing plate and the rear ends of the second fixing plate are fixedly connected to the front end of the pipeline protection box.
[0011] By adopting the above technical solution: the guide rod guides the sliding of the movable plate, the spring assists in clamping, the arc plate and rubber pad firmly clamp the pipeline and prevent damage, and the fixed plate connected to the protective box ensures the stability of the component.
[0012] Preferably, the two guide rods are located inside the corresponding springs, and there are gaps between them and the inner walls of the corresponding two springs.
[0013] By adopting the above technical solution, the guide rod does not affect the extension and contraction of the spring, and at the same time avoids spring deflection, ensuring smooth sliding of the movable plate.
[0014] Preferably, a plurality of first arc-shaped clamping plates and a plurality of second arc-shaped clamping plates are arranged in pairs, one above the other, and the positions of the plurality of first arc-shaped clamping plates and the plurality of second arc-shaped clamping plates correspond to the positions of the plurality of wire holes.
[0015] By adopting the above technical solution, the corresponding pipeline can be accurately clamped, thereby improving clamping stability and accuracy.
[0016] Preferably, the first fixed plate has a first threaded hole that passes through the upper and lower parts at the middle of its upper end, and the movable plate has a second threaded hole at the middle of its upper end. The outer surface of the locking screw is threaded to the inner wall of the first threaded hole and extends into the second threaded hole.
[0017] By adopting the above technical solution: threaded connection locking movable plate, loosening caused by vehicle vibration is prevented, and pipeline clamping and fixing are ensured.
[0018] Compared with the prior art, the present invention has the following beneficial effects: In this invention, various pipelines at the bottom of the rail vehicle are first passed through the corresponding threading holes at the front and rear ends of the pipeline protection box in the pipeline protection assembly. During the threading process, the rubber ring inside the threading hole prevents the outer wall of the pipeline from being worn by the edge of the threading hole. At the same time, the pipelines are located in separate cavities formed by several pipeline partition plates, achieving classification and isolation of different pipelines and preventing them from tangling or rubbing against each other. The through holes on the pipeline partition plates can meet the connection needs of each pipeline. The rubber ring inside the through holes also protects the pipelines. Then, the movable plates in the first and second fixing components are manually pressed down. During the pressing process, the movable plates slide stably along the guide rod, and the springs are compressed until the pipelines are tightly clamped between the corresponding first arc-shaped clamping plates and the corresponding second arc-shaped clamping plates. The arc-shaped rubber pads inside the first and second arc-shaped clamping plates enhance the clamping stability of the pipelines and prevent excessive clamping force from damaging them. Simultaneously, the guide rod guides the sliding of the movable plate, preventing displacement. Finally, the locking screw passes through the first screw hole on the first fixed plate and is threadedly connected to the second screw hole on the movable plate. Tightening the locking screw locks the movable plate, preventing it from loosening due to vehicle vibration, thus completing the stable clamping and positioning of the pipelines. After all pipelines are installed and fixed, bolts are used to fix the entire protective support frame to the designated position at the bottom of the rail vehicle through the fixing holes at the top of the first and second L-shaped plates. The bottom protective net at the lower end of the pipeline protection box further prevents foreign objects from intruding, providing comprehensive protection and support for the pipelines at the bottom of the rail vehicle, ensuring long-term stable operation of the pipelines. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of a protective support frame for pipelines at the bottom of a rail vehicle according to the present invention. Figure 2 This is a cross-sectional view of the structure of a pipeline protection support frame for the bottom of a rail vehicle according to the present invention (the pipeline protection components are cut out). Figure 3 This is a schematic diagram of the pipeline protection component of a pipeline protection support frame for the bottom of a rail vehicle according to the present invention. Figure 4 This is a cross-sectional view of the pipeline protection component of the bottom pipeline protection support frame of a rail vehicle according to the present invention (the pipeline protection box is cut out). Figure 5 This is a schematic diagram of the structure of the first fixing component of the bottom pipeline protection support frame of a rail vehicle according to the present invention; Figure 6This is an exploded view of the structure of the first fixing component of the bottom pipeline protection support frame of a rail vehicle according to the present invention.
[0020] In the diagram: 1. First L-shaped plate; 2. Second L-shaped plate; 3. Fixing hole; 4. Pipeline protection component; 5. First fixing component; 6. Second fixing component; 41. Pipeline protection box; 42. Pipeline partition baffle; 43. Bottom protective net; 44. Wire hole; 45. Through hole; 46. Rubber ring; 51. First fixing plate; 52. Second fixing plate; 53. Locking screw; 54. Guide rod; 55. Movable plate; 56. Spring; 57. First arc-shaped clamping plate; 58. Second arc-shaped clamping plate; 59. Arc-shaped rubber pad. Detailed Implementation
[0021] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.
[0022] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within 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.
[0024] Please see Figure 1-6 This utility model provides a technical solution: A pipeline protection support frame for the bottom of a rail vehicle includes a first L-shaped plate 1 and a second L-shaped plate 2. The upper ends of the first L-shaped plate 1 and the second L-shaped plate 2 each have two through fixing holes 3. A pipeline protection component 4 is fixedly connected between the first L-shaped plate 1 and the second L-shaped plate 2. A first fixing component 5 is fixedly connected to the front end of the pipeline protection component 4, and a second fixing component 6 is fixedly connected to the rear end of the pipeline protection component 4. The first fixing component 5 and the second fixing component 6 have the same structure and are distributed in a mirror image.
[0025] In this embodiment, the pipeline protection component 4 includes a pipeline protection box 41. Several pipeline partition baffles 42 are fixedly connected to the front and rear inner walls of the pipeline protection box 41. A bottom protective net 43 is embedded at the lower end of the pipeline protection box 41. Several through-holes 44 are opened at both the front and rear ends of the pipeline protection box 41. A through-hole 45 is opened at the right end of each of the pipeline partition baffles 42. Rubber rings 4 are fixedly fitted into both the through-holes 44 and the through-holes 45. 6; Several pipeline partition baffles 42 are distributed in pairs at equal intervals, and several wire holes 44 and several pipeline partition baffles 42 are distributed in pairs in an alternating pattern; the first fixing component 5 includes a first fixing plate 51, a second fixing plate 52 and a locking screw 53, and two guide rods 54 are fixedly connected at the corners between the first fixing plate 51 and the second fixing plate 52. A movable plate 55 is movably sleeved on the two guide rods 54, and a locking screw 53 is fixedly connected at the corners between the movable plate 55 and the second fixing plate 52. A spring 56, a number of first arc-shaped clamping plates 57 are fixedly connected to the upper end of the second fixed plate 52, and a number of second arc-shaped clamping plates 58 are fixedly connected to the lower end of the movable plate 55. Arc-shaped rubber pads 59 are fixedly fitted inside each of the first arc-shaped clamping plates 57 and the second arc-shaped clamping plates 58. The rear ends of the first fixed plate 51 and the second fixed plate 52 are both fixedly connected to the front end of the pipeline protection box 41. Two guide rods 54 are respectively located inside the corresponding springs 56 and are respectively connected to the corresponding... There are gaps in the inner walls of the two springs 56; several first arc-shaped clamping plates 57 and several second arc-shaped clamping plates 58 are distributed in pairs, one above the other, and the positions of several first arc-shaped clamping plates 57 and several second arc-shaped clamping plates 58 correspond to the positions of several wire holes 44; the upper middle part of the first fixed plate 51 has a first threaded hole that passes through from top to bottom, the upper middle part of the movable plate 55 has a second threaded hole, and the outer surface of the locking screw 53 is threaded to the inner wall of the first threaded hole and extends into the second threaded hole.
[0026] It should be noted that this utility model is a protective support frame for pipelines at the bottom of a rail vehicle. In use, various pipelines at the bottom of the rail vehicle are first passed through the corresponding threading holes 44 at the front and rear ends of the pipeline protection box 41 in the pipeline protection component 4. During threading, the rubber rings 46 inside the threading holes 44 prevent wear on the outer wall of the pipeline from the edges of the threading holes 44. Simultaneously, the pipelines are positioned within separate cavities formed by several pipeline partition plates 42, achieving classification and isolation of different pipelines and preventing them from tangling. The through holes 45 on the pipeline partition plates 42 can meet the connection requirements between various pipelines. The rubber rings 46 inside the through holes 45 also provide protection for the pipelines. Next, the movable plates 55 in the first fixing component 5 and the second fixing component 6 are manually pressed downwards. During the pressing process… The movable plate 55 slides along the guide rod 54, and the spring 56 is compressed until the pipeline is tightly clamped between the corresponding first arc-shaped clamping plate 57 and the corresponding second arc-shaped clamping plate 58. The arc-shaped rubber pads 59 in the first arc-shaped clamping plate 57 and the second arc-shaped clamping plate 58 can enhance the clamping stability of the pipeline and at the same time avoid excessive clamping force from damaging the pipeline. Finally, the locking screw 53 is passed through the first screw hole on the first fixed plate 51 and threadedly connected to the second screw hole on the movable plate 55. Tightening the locking screw 53 realizes the locking and fixing of the movable plate 55, and completes the clamping and positioning of the pipeline. After all the pipelines are installed and fixed, the entire protective support frame is fixed to the designated position at the bottom of the rail vehicle by bolts through the fixing holes 3 at the upper end of the first L-shaped plate 1 and the second L-shaped plate 2, thus realizing the protective support for the pipelines at the bottom of the rail vehicle.
[0027] 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 embodiments and descriptions in the specification 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 the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.
Claims
1. A protective support frame for pipelines at the bottom of a rail vehicle, comprising a first L-shaped plate (1) and a second L-shaped plate (2), characterized in that: The upper end of the first L-shaped plate (1) and the upper end of the second L-shaped plate (2) each have two through-holes (3). The first L-shaped plate (1) and the second L-shaped plate (2) are fixedly connected to each other. The front end of the pipeline protection component (4) is fixedly connected to the first fixing component (5), and the rear end of the pipeline protection component (4) is fixedly connected to the second fixing component (6). The first fixing component (5) and the second fixing component (6) have the same structure and are distributed in a mirror image. The pipeline protection assembly (4) includes a pipeline protection box (41). The front inner wall and the rear inner wall of the pipeline protection box (41) are fixedly connected with a number of pipeline partition baffles (42). The lower end of the pipeline protection box (41) is embedded with a bottom protective net (43). The front end and the rear end of the pipeline protection box (41) are each provided with a number of through holes (44) that pass through both inside and outside. The right end of each of the pipeline partition baffles (42) is provided with a through hole (45) that passes through both left and right. A rubber ring (46) is fixedly fitted inside each of the through holes (44) and the through holes (45).
2. The rail vehicle bottom pipeline protection support frame according to claim 1, characterized in that: The pipeline partitions (42) are distributed at equal intervals in pairs, and the wire holes (44) and the pipeline partitions (42) are distributed alternately in pairs.
3. The rail vehicle bottom pipeline protection support frame according to claim 1, characterized in that: The first fixing component (5) includes a first fixing plate (51), a second fixing plate (52) and a locking screw (53). Two guide rods (54) are fixedly connected at the corners between the first fixing plate (51) and the second fixing plate (52). A movable plate (55) is movably sleeved on the two guide rods (54). A spring (56) is fixedly connected at the corners between the movable plate (55) and the second fixing plate (52). Several first arc-shaped clamping plates (57) are fixedly connected to the upper end of the second fixing plate (52). Several second arc-shaped clamping plates (58) are fixedly connected to the lower end of the movable plate (55). Arc-shaped rubber pads (59) are fixedly sleeved in both the several first arc-shaped clamping plates (57) and the several second arc-shaped clamping plates (58). The rear end of the first fixing plate (51) and the rear end of the second fixing plate (52) are fixedly connected to the front end of the pipeline protection box (41).
4. The rail vehicle bottom pipeline protection support frame according to claim 3, characterized in that: The two guide rods (54) are located inside the corresponding springs (56) respectively, and there are gaps between them and the inner wall surfaces of the two corresponding springs (56).
5. A protective support frame for pipelines at the bottom of a rail vehicle according to claim 3, characterized in that: Several first arc-shaped clamping plates (57) and several second arc-shaped clamping plates (58) are arranged in pairs, one above the other, and the positions of several first arc-shaped clamping plates (57) and several second arc-shaped clamping plates (58) correspond to the positions of several wire holes (44).
6. The rail vehicle bottom pipeline protection support frame according to claim 3, characterized in that: The first fixed plate (51) has a first threaded hole that passes through the upper and lower parts in the middle of its upper end, and the movable plate (55) has a second threaded hole in the middle of its upper end. The outer surface of the locking screw (53) is threaded to the inner wall of the first threaded hole and extends into the second threaded hole.