Mounting and positioning structure for resistance-reducing apron board of high-speed train
By employing quick-connect and magnetic positioning components on high-speed trains, the issues of installation accuracy and stability were resolved, enabling rapid installation and stable connection of the guide skirt, thereby improving installation efficiency and service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-09
- Publication Date
- 2026-04-10
AI Technical Summary
Existing drag-reducing skirt installation and positioning structures suffer from problems such as difficulty in ensuring installation accuracy, complex installation process, and poor positioning stability, which affect drag reduction effect and service life.
It employs a quick-connect assembly and a magnetic positioning assembly. The quick-connect assembly enables rapid installation through the sliding connection of the locking block and the docking block, while the magnetic positioning assembly provides initial positioning through the attraction of the permanent magnet block, combined with the cushioning of the rubber pad to ensure connection stability.
It enables rapid installation of the flow guide skirt, improves installation efficiency, enhances positioning stability, extends service life, and reduces vibration and wear.
Smart Images

Figure CN224104065U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of high-speed train technology, and in particular to a high-speed train drag-reducing skirt installation and positioning structure. Background Technology
[0002] As the operating speed of high-speed trains continues to increase, the air resistance experienced by the trains during operation increases significantly. Air resistance not only consumes a lot of energy and increases operating costs, but also generates a lot of aerodynamic noise, affecting passenger comfort. Drag-reducing skirts, as an effective drag-reducing device, are widely used on high-speed trains.
[0003] Existing drag-reducing skirt installation and positioning structures have some shortcomings, such as difficulty in ensuring installation accuracy, complex installation process, and poor positioning stability. These problems will affect the drag reduction effect and service life of the drag-reducing skirt.
[0004] To address this, a positioning structure for installing drag-reducing skirts on high-speed trains is proposed. Utility Model Content
[0005] The purpose of this utility model is to provide a high-speed train drag-reducing skirt installation and positioning structure, which can solve some shortcomings of the existing drag-reducing skirt installation and positioning structure, such as difficulty in ensuring installation accuracy, complex installation process, and poor positioning stability. These problems affect the drag reduction effect and service life of the drag-reducing skirt.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-speed train drag reduction skirt mounting and positioning structure, including a car body, four mounting plates are bolted to the front and rear sides of the bottom of the car body, and a flow guide skirt is provided between the front sides of the four front mounting plates and between the rear sides of the four rear mounting plates, and two quick-connect components and two magnetic positioning components are respectively provided between the flow guide skirt and the mounting plates;
[0007] The quick-connect assembly includes a first mounting base, which is bolted to the mounting plate on the side near the mounting plate. The first mounting base has a first mating groove inside and several block slots inside. Each block slot has a locking block inside, which extends into the first mating groove. A first mating block is slidably disposed inside the first mating groove. The first mating block has a locking groove inside, and the surface of the locking block contacts the inner wall of the first mating block. The side of the first mating block near the flow guide skirt is bolted to the flow guide skirt.
[0008] Preferably, the magnetic positioning assembly includes a second mounting base, the side of the second mounting base near the mounting plate being bolted to the mounting plate.
[0009] Preferably, the second mounting seat is internally provided with a second butt joint groove.
[0010] Preferably, the second butt joint groove is internally slidably provided with a second butt joint block, the second butt joint block is internally provided with a second permanent magnet, and the second butt joint block is bolted to the flow guide apron on one side close to the flow guide apron.
[0011] Preferably, the first butt joint groove is internally provided with a rubber pad, and the surface of the rubber pad is in contact with the first butt joint block.
[0012] Preferably, the block groove is internally provided with a spring, and the two ends of the spring are respectively connected to the clamping block and the inner wall of the first mounting seat.
[0013] Preferably, the left side and the right side of the bottom of the vehicle body are both provided with wheels.
[0014] Preferably, the flow guide apron is bolted to a plurality of mounting blocks on the side away from the mounting plate, and the mounting blocks are provided with contour lights on the side away from the flow guide apron.
[0015] Compared with the prior art, the utility model has the beneficial effects that:
[0016] 1. The quick clamping assembly is arranged, the flow guide apron can be quickly installed, the installation time is reduced, and the installation efficiency is improved.
[0017] 2. The magnetic attraction positioning assembly is arranged, the auxiliary positioning during installation of the flow guide apron can be realized, the connection between the flow guide apron and the mounting plate can be further stabilized, the buffer of the rubber pad is matched, the service life of the flow guide apron is increased. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 It is an overall structural view of the high-speed train drag reduction apron installation positioning structure of the utility model;
[0019] Figure 2 It is a connection schematic view of the contour light and the flow guide apron of the utility model;
[0020] Figure 3 It is a connection schematic view of the mounting plate and the flow guide apron of the utility model;
[0021] Figure 4 It is a connection schematic view of the magnetic attraction positioning assembly and the mounting plate of the utility model;
[0022] Figure 5 It is a connection schematic view of the quick butt joint assembly and the mounting plate of the utility model.
[0023] In the figure, 1, vehicle body; 2, mounting plate; 3, flow guide skirt plate; 4, quick clamping assembly; 41, first mounting seat; 42, first docking groove; 43, block groove; 44, clamping block; 45, first docking block; 46, clamping groove; 5, magnetic attraction positioning assembly; 51, second mounting seat; 52, second docking groove; 53, first permanent magnet block; 54, second docking block; 55, second permanent magnet block; 6, rubber pad; 7, spring; 8, wheel; 9, mounting block; 10, outline lamp. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0025] Please refer to Figures 1-5 The utility model provides technical schemes:
[0026] A high-speed train drag reduction skirt plate mounting and positioning structure, including vehicle body 1, the front side and rear side of the bottom of vehicle body 1 are bolted with four mounting plates 2, the front side between the four mounting plates 2 of front side and the rear side between the four mounting plates 2 of rear side are all provided with flow guide skirt plate 3, two quick clamping assemblies 4 and two magnetic attraction positioning assemblies 5 are respectively arranged between flow guide skirt plate 3 and mounting plate 2.
[0027] The quick clamping assembly 4 includes a first mounting seat 41, the side close to the mounting plate 2 of the first mounting seat 41 is bolted with the mounting plate 2, the inside of the first mounting seat 41 is provided with a first docking groove 42, the inside of the first mounting seat 41 is provided with a plurality of block grooves 43, the inside of the block groove 43 is provided with a clamping block 44, the clamping block 44 extends to the inside of the first docking groove 42, the inside of the first docking groove 42 is slidably provided with a first docking block 45, the inside of the first docking block 45 is provided with a clamping groove 46, the surface of the clamping block 44 and the inner wall of the first docking block 45 are in contact, the side close to the flow guide skirt plate 3 of the first docking block 45 is bolted with the flow guide skirt plate 3.
[0028] In the embodiment, the four mounting plates 2 bolted to the front side and the rear side of the bottom of the vehicle body 1 provide support components for the mounting of other components, the flow guide skirts 3 are arranged between the rear sides of the four mounting plates 2 on the rear side and between the front sides of the four mounting plates 2 on the front side, the flow guide skirts 3 are fixedly connected with the mounting plates 2 through the quick clamping assembly 4 and the magnetic attraction positioning assembly 5, the first mounting seat 41 is bolted to the mounting plate 2, a first counter slot 42 and a plurality of block slots 43 are formed in the first mounting seat 41, a clamping block 44 is arranged in the block slot 43, the clamping block 44 extends into the first counter slot 42, a first counter block 45 is slidably arranged in the first counter slot 42, the first counter block 45 is bolted to the flow guide skirt 3, and a clamping slot 46 is formed in the first counter block 45, when the flow guide skirt 3 is mounted, the first counter block 45 is slid into the first counter slot 42, the clamping block 44 is clamped into the clamping slot 46 of the first counter block 45, the flow guide skirt 3 and the mounting plate 2 are quickly clamped and fixed, and a rubber pad 6 arranged in the first counter slot 42 contacts the first counter block 45, plays a buffering and sealing role, and reduces vibration and clearance.
[0029] Specifically, as shown in Figure 3 , Figure 4 , the magnetic attraction positioning assembly 5 comprises a second mounting seat 51, and one side of the second mounting seat 51 close to the mounting plate 2 is bolted to the mounting plate 2.
[0030] Specifically, as shown in Figure 4 , the second mounting seat 51 is internally formed with a second counter slot 52, and the second mounting seat 51 is internally provided with a first permanent magnet block 53.
[0031] Specifically, as shown in Figure 4 , the second counter slot 52 is slidably provided with a second counter block 54, the second counter block 54 is internally provided with a second permanent magnet block 55, and one side of the second counter block 54 close to the flow guide skirt 3 is bolted to the flow guide skirt 3.
[0032] In the embodiment, when the magnetic attraction positioning assembly 5 is mounted, the second mounting seat 51 is bolted to the mounting plate 2, then the second counter slot 52 is processed in the second mounting seat 51, then the first permanent magnet block 53 is mounted in the second mounting seat 51, the second counter block 54 is bolted to the flow guide skirt 3, and the second permanent magnet block 55 is mounted in the second counter block 54, when the flow guide skirt 3 approaches the mounting plate 2, because the magnetic poles of the first permanent magnet block 53 and the second permanent magnet block 55 are opposite, the magnetic force of mutual attraction is generated, the second counter block 54 automatically slides into the second counter slot 52 under the action of the magnetic force, the preliminary positioning of the flow guide skirt 3 and the mounting plate 2 is realized, and convenience is provided for the subsequent connection of the quick clamping assembly 4, in the process of train running, the magnetic attraction positioning assembly 5 continuously provides a certain adsorption force, assists the quick clamping assembly 4, ensures the connection stability between the flow guide skirt 3 and the mounting plate 2, and prevents the position of the flow guide skirt 3 from deviating under vibration and the like.
[0033] Specifically, as shown in Figure 5 The first interface groove 42 is internally provided with a rubber pad 6, and the surface of the rubber pad 6 is in contact with the first interface block 45.
[0034] Specifically, as shown in Figure 5 The block groove 43 is internally provided with a spring 7, and the two ends of the spring 7 are respectively connected with the clamping block 44 and the inner wall of the first mounting seat 41.
[0035] In this embodiment: the rubber pad 6 is installed in the first interface groove 42 and is firmly pasted by glue. When the first interface block 45 slides into the first interface groove 42 during train operation, the rubber pad 6 can play a buffering role to reduce the collision and wear between the first interface block 45 and the first interface groove 42. The spring 7 is installed in the block groove 43, and the two ends of the spring 7 are respectively connected with the clamping block 44 and the inner wall of the first mounting seat 41. When the first interface block 45 slides into the first interface groove 42, the clamping block 44 is extruded by the first interface block 45, the spring 7 is compressed, and the clamping block 44 is retracted into the block groove 43. When the first interface block 45 slides to the designated position, the clamping groove 46 is aligned with the clamping block 44, the spring 7 returns to its original state, the clamping block 44 pops out and is clamped into the clamping groove 46, realizing rapid clamping. During train operation, the spring force provided by the spring 7 keeps the clamping block 44 in the clamping groove 46 at all times, ensuring that the connection between the first interface block 45 and the first interface groove 42 is firm and can withstand various forces during train operation.
[0036] Specifically, as shown in Figure 2 The left side and the right side of the bottom of the car body 1 are both provided with wheels 8.
[0037] Specifically, as shown in Figure 1 , Figure 2 The side of the flow guide apron 3 away from the mounting plate 2 is bolted with a plurality of mounting blocks 9, and the side of the mounting block 9 away from the flow guide apron 3 is provided with a contour lamp 10.
[0038] In this embodiment: during train operation, the wheels 8 roll on the track, bearing the weight of the train and various loads during travel, providing support and power for the train's travel. On the side of the flow guide apron 3 away from the mounting plate 2, a plurality of mounting blocks 9 are bolted to the flow guide apron 3 using bolts, and contour LED light sources are installed on the mounting blocks 9. During train travel, the contour lamp 10 is lit, providing the surrounding environment with the contour information of the train, especially at night or in low light conditions, improving the visibility of the train and ensuring the safety of train operation.
[0039] Working principle: when the train runs, the wheel 8 rolls on the track, bears the weight of the train and various loads during driving, provides support and power for train driving, the mounting plate 2 at the bottom of the car body 1 provides support for the components such as the flow skirt plate 3, the flow skirt plate 3 and the mounting plate 2 are connected through the magnetic attraction positioning assembly 5 and the quick clamping assembly 4, in the magnetic attraction positioning assembly 5, the first permanent magnet block 53 on the second mounting seat 51 and the second permanent magnet block 55 in the second butt joint block 54 of the flow skirt plate 3 are attracted due to the opposite magnetic poles, so that the second butt joint block 54 slides into the second butt joint groove 52, the preliminary positioning is realized, the train runs continuously to provide adsorption force to prevent the flow skirt plate 3 from deviating, in the quick clamping assembly 4, when the first butt joint block 45 slides into the first butt joint groove 42, the clamping block 44 is extruded to make the spring 7 compressed into the block groove 43, after sliding to the specified position, the spring 7 restores, the clamping block 44 pops out and clamps into the clamping groove 46, the spring 7 ensures firm connection during train running, the rubber pad 6 in the first butt joint groove 42 can buffer the collision and wear between the first butt joint block 45 and the first butt joint groove 42, in addition, the profile LED light source installed on the flow skirt plate 3 is turned on during train driving, which provides the train wheel 8 profile information for the surrounding environment, improves the visibility of the train in the night or low light conditions, and ensures the running safety.
[0040] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model, any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A high-speed train drag-reducing skirt panel mounting and positioning structure comprising a car body (1), characterized in that: The front side and the rear side of the bottom of the vehicle body (1) are bolted with four mounting plates (2), the front side between the four mounting plates (2) on the front side and the rear side between the four mounting plates (2) on the rear side are provided with flow guide aprons (3), two quick clamping assemblies (4) and two magnetic attraction positioning assemblies (5) are respectively arranged between the flow guide aprons (3) and the mounting plates (2); The quick clamping assembly (4) comprises a first mounting seat (41), one side of the first mounting seat (41) close to the mounting plate (2) is bolted with the mounting plate (2), a first docking groove (42) is formed in the inside of the first mounting seat (41), a plurality of block grooves (43) are formed in the inside of the first mounting seat (41), a clamping block (44) is arranged in the inside of the block groove (43), the clamping block (44) extends into the first docking groove (42), a first docking block (45) is slidably arranged in the inside of the first docking groove (42), a clamping groove (46) is formed in the inside of the first docking block (45), the surface of the clamping block (44) is in contact with the inner wall of the first docking block (45), one side of the first docking block (45) close to the flow guide apron (3) is bolted with the flow guide apron (3).
2. The high-speed train drag-reducing apron mounting and positioning structure according to claim 1, characterized in that: The magnetic attraction positioning assembly (5) comprises a second mounting seat (51), one side of the second mounting seat (51) close to the mounting plate (2) is bolted with the mounting plate (2).
3. The high-speed train drag-reducing apron mounting and positioning structure according to claim 2, characterized in that: A second docking groove (52) is formed in the inside of the second mounting seat (51), and a first permanent magnet block (53) is arranged in the inside of the second mounting seat (51).
4. The high-speed train drag-reducing apron mounting and positioning structure according to claim 3, characterized in that: A second docking block (54) is slidably arranged in the inside of the second docking groove (52), a second permanent magnet block (55) is arranged in the inside of the second docking block (54), and one side of the second docking block (54) close to the flow guide apron (3) is bolted with the flow guide apron (3).
5. The high-speed train drag-reducing skirt mounting and positioning structure of claim 1, wherein: A rubber pad (6) is arranged in the inside of the first docking groove (42), and the surface of the rubber pad (6) is in contact with the first docking block (45).
6. The high-speed train drag-reducing skirt mounting and positioning structure of claim 1, wherein: A spring (7) is arranged in the inside of the block groove (43), and the two ends of the spring (7) are respectively connected with the clamping block (44) and the inner wall of the first mounting seat (41).
7. The high-speed train drag-reducing skirt mounting and positioning structure of claim 1, wherein: A wheel (8) is arranged on the left side and the right side of the bottom of the vehicle body (1).
8. The high-speed train drag-reducing skirt mounting and positioning structure of claim 1, wherein: A plurality of mounting blocks (9) are bolted on one side of the flow guide apron (3) away from the mounting plate (2), and a contour lamp (10) is arranged on one side of the mounting block (9) away from the flow guide apron (3).