Buffer rail structure and island platform

By employing a buffer guide rail structure in the island drawers, and utilizing damping brackets and slider assemblies to achieve smooth drawer closure, the problem of severe collisions between the drawers and the cabinet is solved, improving the user experience and the durability of the drawers.

CN122140084APending Publication Date: 2026-06-05QINGYUAN LAOKA FURNITURE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
QINGYUAN LAOKA FURNITURE CO LTD
Filing Date
2026-03-17
Publication Date
2026-06-05

AI Technical Summary

Technical Problem

The existing island drawer slide structure lacks an effective cushioning mechanism, which makes the drawer prone to violent collision with the cabinet when closed, generating noise and potentially damaging the drawer and its contents, thus shortening its lifespan.

Method used

The drawer employs a buffered guide rail structure, including a fixed rail, a middle rail, a movable rail, and a buffer assembly. Through the cooperation of a damping bracket, a damping tube, a slider adapter, and a slider core, the drawer can be closed smoothly, avoiding impact and noise, and enhancing the user experience.

Benefits of technology

It effectively slows down the drawer closing speed, eliminates impact and noise, extends the drawer's lifespan, improves the user experience, avoids the risk of loosening of traditional damping brackets, and ensures that the drawer closes smoothly and stably.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a buffer guide rail structure and an island platform. The buffer guide rail structure comprises a fixed rail, a middle rail, a movable rail, and a buffer assembly. The fixed rail is used for fixed connection with a cabinet body. The middle rail is slidably nested in the fixed rail. The movable rail is slidably nested in the middle rail and is used for connection with a drawer. The buffer assembly comprises a damping support, a damping tube, a slider adapter, and a slider core. The damping support is arranged at the inner side of the end of the middle rail. The damping tube is arranged on the damping support. The damping tube is provided with a piston rod in an extendable and retractable manner. The slider adapter is arranged at the front end of the movable rail and is used for connection with the drawer. The slider core is arranged at one end of the slider adapter close to the damping tube and is used for pressing the piston rod to make the piston rod retract.
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Description

Technical Field

[0001] This application relates to the field of furniture technology, and in particular to a buffer guide rail structure and an island counter. Background Technology

[0002] An island, often called a kitchen island or central island, is a functional structure in modern home design. It is commonly found in open kitchens or spacious dining areas. Its core feature is that it exists independently in the center of the space, without being connected to walls or other cabinets on all sides, combining practicality and decoration.

[0003] Currently, most islands with drawers on the market use ordinary guide rails. This type of ordinary guide rail structure lacks an effective buffer mechanism when the drawers are closed, which can easily cause the drawers to collide violently with the cabinet due to excessive force. This not only generates a lot of noise and affects the user experience, but may also damage the drawers and cabinets and shorten their service life. Summary of the Invention

[0004] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes a buffer guide rail structure that can smoothly slow down the closing speed of the drawer, avoid generating a large impact force at the moment the drawer closes, effectively eliminate the final impact and noise, improve the user experience, and at the same time reduce the risk of damage to the drawer and its internal items.

[0005] This application also proposes an island platform.

[0006] According to the first aspect of this application, the buffer guide rail structure includes: a fixed rail for fixed connection with a cabinet; a middle rail slidably nested within the fixed rail; a movable rail slidably nested within the middle rail, the movable rail being connected to a drawer; and a buffer assembly including a damping bracket, a damping tube, a slider adapter, and a slider core. The damping bracket is disposed on the inner side of the end of the middle rail, the damping tube is disposed on the damping bracket, and the damping tube is telescopically provided with a piston rod. The slider adapter is disposed at the front end of the movable rail, the slider adapter being connected to the drawer, and the slider core is disposed at one end of the slider adapter near the damping tube, the slider core being used to press against the piston rod to retract the piston rod.

[0007] According to the buffer guide rail structure described in the first aspect of this application, it has at least the following beneficial effects: When the drawer is closed, the movable rail drives the slider to rotate and the slider core to move towards the damping tube side. When the slider core presses against the piston rod, the piston rod retracts to achieve the buffering function. By setting the buffer assembly between the middle rail and the movable rail, the closing speed of the drawer can be smoothly reduced, avoiding a large impact force generated at the moment the drawer closes, effectively eliminating the final impact and noise, improving the user experience, and also eliminating the hidden danger of loosening of traditional independent damping brackets due to long-term impact, reducing the risk of damage to the drawer and its internal items, and helping to extend the service life of the drawer. Moreover, due to the damping force, the drawer will not suddenly fall or jam during the closing process, making the drawer closing process smoother and more stable, improving the overall user experience.

[0008] According to the buffer guide rail structure described in the first aspect of this application, the slider is provided with a mounting groove, the slider core is provided with a rotating shaft, and the rotating shaft is rotatably disposed in the mounting groove.

[0009] According to the buffer guide structure described in the first aspect of this application, the piston rod is provided with a slot, and the slider core is provided with an abutment portion, the abutment portion being embedded in the slot.

[0010] According to the buffer guide rail structure described in the first aspect embodiment of this application, the abutting part is provided with a first inclined surface and a second inclined surface, the inclination angle of the second inclined surface is greater than the inclination angle of the first inclined surface, so that the second inclined surface and the first inclined surface cooperate to form a double-slope wedge surface.

[0011] According to the buffer guide rail structure described in the first aspect of this application, the movable rail is provided with a slot, and the slider adapter engages with the slot.

[0012] According to the buffer guide rail structure described in the first aspect of this application, the buffer assembly further includes a tension spring, one end of which is connected to the front end of the fixed rail, and the other end of which is connected to the movable rail.

[0013] According to the buffer guide rail structure described in the first aspect of this application, the movable rail is provided with a slider buckle, and the tension spring is connected to the slider buckle.

[0014] According to the buffer guide rail structure described in the first aspect of this application, a synchronization component is further included. The synchronization component includes a gear and a rack. The gear is disposed on the middle rail, and the rack is disposed on the movable rail. The gear and the rack are meshed together.

[0015] According to the buffer guide rail structure described in the first aspect of this application, the damping bracket is provided with a locking hole, and the middle rail is provided with a buckle. The buckle cooperates with the locking hole to fasten the damping bracket to the middle rail.

[0016] The island platform according to the second aspect of the present application includes the buffer guide rail structure described in the first aspect of the present application.

[0017] The island counter according to the second aspect of the present application has at least the following beneficial effects: By placing the buffer component between the middle rail and the moving rail, the island counter described in the second aspect of the present application can smoothly slow down the closing speed of the drawer, avoiding a large impact force generated at the moment of closing, effectively eliminating the final impact and noise, improving the user experience. It also eliminates the hidden danger of traditional independent damping brackets loosening due to long-term impact, reducing the risk of damage to the drawer and its internal items, and helping to extend the drawer's service life. Furthermore, due to the damping force, the drawer will not suddenly fall or jam during the closing process, making the drawer closing process smoother and more stable, improving the overall user experience.

[0018] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0019] The present application will be further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of the buffer guide rail structure according to an embodiment of this application; Figure 2 This is an exploded view of the buffer guide rail structure according to an embodiment of this application; Figure 3 This is a schematic diagram of the connection structure between the damping bracket and the middle rail in the buffer guide rail structure of this application embodiment; Figure 4 This is a schematic diagram of the slider core and piston rod in the buffer guide rail structure of this application embodiment; Figure 5 This is a schematic diagram of the synchronization mechanism in the buffer guide rail structure of this application embodiment.

[0020] Figure label: Fixed rail 100; mounting hole 110; center rail 200; snap fastener 210; movable rail 300; slider buckle 310; buffer assembly 400; damping bracket 410; snap hole 411; damping tube 420; piston rod 421; slot 422; slider adapter 430; mounting groove 431; slider core 440; rotating shaft 441; torsion spring 442; abutment part 443; tension spring 450; gear 510; rack 520. Detailed Implementation

[0021] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0022] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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 application.

[0023] In the description of this application, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0024] In the description of this application, unless otherwise expressly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly. Those skilled in the art can reasonably determine the specific meaning of these terms in this application based on the specific content of the technical solution. In the description of this application, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described can be combined in any suitable manner in one or more embodiments or examples. In the description of this specification, the terms "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0025] Reference Figures 1 to 5The first aspect of this application provides a buffer guide rail structure, including: a fixed rail 100 for fixed connection with a cabinet; a middle rail 200 slidably nested in the fixed rail 100; a movable rail 300 slidably nested in the middle rail 200 and used for connection with a drawer; and a buffer assembly 400, including a damping bracket 410, a damping tube 420, a slider adapter 430, and a slider core 440. The damping bracket 410 is disposed on the inner side of the end of the middle rail 200, the damping tube 420 is disposed on the damping bracket 410, and the damping tube 420 is telescopically provided with a piston rod 421. The slider adapter 430 is disposed at the front end of the movable rail 300 and is used for connection with a drawer. The slider core 440 is disposed at the end of the slider adapter 430 near the damping tube 420 and is used to press the piston rod 421 to retract the piston rod 421.

[0026] When the drawer closes, the movable rail 300 drives the slider adapter 430 and slider core 440 to move towards the damping tube 420. When the slider core 440 presses against the piston rod 421, the piston rod 421 retracts to achieve a buffering function. By placing the buffer assembly 400 between the middle rail 200 and the movable rail 300, the closing speed of the drawer can be smoothly reduced, avoiding a large impact force generated at the moment of closing, effectively eliminating the final impact and noise, improving the user experience. At the same time, it can also eliminate the hidden danger of the traditional independent damping bracket 410 loosening due to long-term impact, reducing the risk of damage to the drawer and its internal items, and helping to extend the service life of the drawer. Moreover, due to the damping force, the drawer will not suddenly fall or jam during the closing process, making the drawer closing process smoother and more stable, improving the overall user experience.

[0027] The fixed rail 100 has an L-shaped structure, and one side of the fixed rail 100 is provided with mounting holes 110 for fixed connection with the side wall of the cabinet. Multiple mounting holes 110 are provided to enhance the stability of the connection between the fixed rail 100 and the cabinet, ensuring that the entire buffer rail structure will not loosen or wobble during use. The middle rail 200 is nested on the guide rail of the fixed rail 100 through a first rolling component, thus achieving a sliding connection between the fixed rail 100 and the middle rail 200. The cross-section of the middle rail 200 adopts an asymmetrical reinforcing rib design to improve torsional stiffness. The movable rail 300 is nested on the middle rail 200 through a second rolling component, thus achieving a sliding connection between the middle rail 200 and the movable rail 300.

[0028] The rollers in the first and second rolling assemblies are arranged in a triangular pattern, which not only reduces friction during rolling and makes sliding smoother, but also provides high stability, ensuring that the guide rail is not easily damaged during long-term use and improving its resistance to eccentric loads. Furthermore, the rollers adopt a composite structure of POM engineering plastic hubs encasing stainless steel bearings, which features high load-bearing capacity and low noise.

[0029] Reference Figures 1 to 3 The damping bracket 410, as a crucial supporting component of the buffer assembly 400, is tightly connected to the end of the middle rail 200 via a snap-fit ​​connection. This not only facilitates installation but also ensures that the damping bracket 410 will not easily detach under external forces. Specifically, the damping bracket 410 is equipped with a locking hole 411, and the middle rail 200 is equipped with a snap fastener 210. The snap fastener 210 engages with the locking hole 411 to secure the damping bracket 410 to the middle rail 200. This snap-fit ​​connection method is convenient and quick, allowing for rapid installation of the damping bracket 410 onto the middle rail 200, while also facilitating disassembly and replacement. During installation, simply align the snap fastener 210 with the locking hole 411 and press gently to complete the connection, eliminating the need for additional tools and improving installation efficiency. Moreover, this connection method is robust and reliable, capable of withstanding certain external impacts, ensuring a stable connection between the damping bracket 410 and the middle rail 200, and guaranteeing the normal operation of the buffer assembly 400.

[0030] Reference Figure 1 , Figure 2 and Figure 4 Furthermore, the slider adapter 430 is provided with a mounting groove 431, and the slider core 440 is provided with a rotating shaft 441, which is rotatably mounted within the mounting groove 431. The rotating shaft 441 has a small rotation angle, allowing the slider core 440 to swing or rotate at a small angle. When the slider core 440 contacts the piston rod 421, it can adaptively adjust to ensure a tighter and smoother contact, further improving the buffering effect. In this embodiment, the rotating shaft 441 is provided with a torsion spring 442, with both ends of the torsion spring 442 connected to the slider adapter 430 and the slider core 440, respectively. The torsion spring 442 provides a certain restoring force to the slider core 440, keeping it in a specific position when not under force, and quickly restoring it after rotation under force, ensuring the stability and reliability of the buffer assembly 400.

[0031] It should be noted that the slider core 440 can also be slidably mounted on the slider adapter 430. Specifically, the slider adapter 430 is provided with a groove, and the slider core 440 is provided with a protrusion. The protrusion is embedded in the groove and can slide along the groove. Furthermore, a compression spring is provided between the protrusion and the groove. The movable rail 300 drives the slider adapter 430 and the slider core 440 to move towards the damping tube 420. When the slider core 440 contacts the piston rod 421, the protrusion can slide along the groove, allowing the slider core 440 to make a certain degree of adaptive adjustment during the contact with the piston rod 421, ensuring a tighter and smoother contact between the two, thereby further improving the buffering performance. When the drawer is opened or pulled out, under the action of the spring force or external force, the slider core 440 can slide in the opposite direction along the groove under the action of the compression spring, thereby separating from the piston rod 421. Compared to a rotating mechanism, this sliding design offers advantages such as simpler structure and smoother movement. It reduces friction and wear caused by rotating components, extending the service life of the slider adapter 430 and slider core 440. Furthermore, the groove design can be optimized to meet specific needs, such as using grooves of different shapes and sizes to satisfy varying buffering effects and application scenarios.

[0032] It should also be noted that the slider core 440 can also be connected to the slider adapter 430 by both sliding and rotating. Specifically, the slider adapter 430 is provided with a groove, and the slider core 440 is embedded in the groove via a rotating shaft 441. When the slider core 440 contacts the piston rod 421, the rotating shaft 441 can slide and rotate to a certain extent within the groove, allowing the slider core 440 to adaptively adjust according to the contact condition of the piston rod 421. This combined arrangement combines the advantages of sliding and rotating, ensuring close contact between the slider core 440 and the piston rod 421 while reducing friction and wear, thus improving the stability and reliability of the buffer assembly 400. In practical applications, the shape and size of the groove, as well as the sliding and rotating range of the rotating shaft 441, can be adjusted according to specific needs to achieve the best buffering effect.

[0033] It is conceivable that the piston rod 421 is provided with a slot 422, and the slider core 440 is provided with an abutment part 443, which is embedded in the slot 422. The engagement of the abutment part 443 with the slot 422 ensures a more stable connection between the slider core 440 and the piston rod 421. During drawer closing, this ensures that the piston rod 421 retracts stably as the slider core 440 moves, preventing the piston rod 421 from detaching from the slider core 440 or experiencing unstable connection, thus guaranteeing the proper functioning of the buffer. Furthermore, the abutment part 443 is provided with a first inclined surface and a second inclined surface, the second inclined surface having a greater inclination angle than the first inclined surface, forming a double-slope wedge-shaped surface when the second inclined surface and the first inclined surface are engaged. When the drawer is closed normally, the first inclined surface contacts the edge of the slot 422 first, providing initial guidance and positioning, allowing the slider core 440 to enter the slot 422 relatively smoothly. When the drawer is closed quickly, the second inclined surface contacts the piston rod 421 first, generating a stronger damping force. This quickly dissipates the enormous kinetic energy generated by the drawer's rapid closure, effectively preventing loud noises, vibrations, or even damage caused by the drawer slamming against the cabinet, achieving an intelligent anti-collision effect. Utilizing different inclined surfaces allows the drawer to play corresponding roles at different stages of closing, further improving the performance and stability of the buffer guide structure. It also facilitates manufacturing, ensuring the precision and surface quality of the first and second inclined surfaces, guaranteeing the reliable operation of the buffer assembly 400. Furthermore, it can withstand a certain amount of wear during long-term use, ensuring the stability and reliability of the buffer function, extending its service life, and improving the user experience.

[0034] In some embodiments of this application, the movable rail 300 is provided with a slot, and the slider adapter 430 engages with the slot, making the installation and removal of the drawer simpler. During installation, simply align the slider adapter 430 with the slot on the movable rail 300 and gently push it in to complete the connection, without the need for additional tools or complicated procedures. Similarly, when the drawer needs to be removed, simply pull the drawer gently to disengage the slider adapter 430 from the slot for quick removal. This structure not only improves the efficiency of installation and removal but also facilitates the cleaning and maintenance of the drawer. Furthermore, the engagement between the slot and the slider adapter 430 provides a certain degree of stability, ensuring that the drawer will not accidentally fall off due to external forces during use, thus guaranteeing safety.

[0035] The slider adapter 430 connects to the drawer via a three-dimensional adjustment component, which includes an elongated hole and an eccentric screw. This structure allows for adjustment of multiple degrees of freedom within the drawer, ensuring a tighter and more aesthetically pleasing fit between the drawer and the cabinet.

[0036] Reference Figure 1 and Figure 2In some embodiments of this application, the buffer assembly 400 further includes a tension spring 450, one end of which is connected to the front end of the fixed rail 100, and the other end of which is connected to the movable rail 300. The tension spring 450 is a variable pitch torsion spring. During the initial opening phase of the drawer, the tension spring 450 has a small extension length, providing a gentle spring force, allowing the user to easily pull open the drawer without feeling excessive effort. However, as the extension length of the tension spring 450 increases during the closing phase, the spring force gradually increases, providing sufficient assistance to ensure the drawer closes tightly and avoids the problem of insufficient spring force causing the drawer to not close properly. By adopting the above structure, the drawer operation becomes smoother, greatly improving the user experience.

[0037] Furthermore, the movable rail 300 is equipped with a slider buckle 310, and the tension spring 450 is connected to the slider buckle 310. By using the slider buckle 310 to connect the tension spring 450 to the movable rail 300, the connection is made more stable and reliable. During the opening and closing of the drawer, the tension spring 450 can function stably without loosening or falling off. Moreover, the slider buckle 310 has a reasonable structural design, facilitating the installation and removal of the tension spring 450. When the tension spring 450 is damaged and needs replacement, the operation can be carried out quickly and conveniently, improving maintenance efficiency. It is easy to understand that the slider buckle 310 is equipped with a guide block, and the middle rail 200 is equipped with a guide groove. The guide block and the guide groove are connected in a cooperative manner. By using the guide block and guide groove in cooperation, precise guidance is provided for the sliding of the movable rail 300, ensuring that the movable rail 300 does not deviate or jam during the sliding process, guaranteeing accurate opening and closing of the drawer; at the same time, it can also withstand a certain amount of lateral force, improving stability and durability.

[0038] Reference Figure 5 In some embodiments of this application, the buffer guide rail structure further includes a synchronization component, which includes a gear 510 and a rack 520. The gear 510 is disposed on the middle rail 200, and the rack 520 is disposed on the movable rail 300. The gear 510 and the rack 520 are meshed together. By providing the synchronization component, the sliding of the movable rail 300 and the middle rail 200 can be kept synchronized. During the opening and closing of the drawer, the movement of the movable rail 300 and the middle rail 200 is ensured to be coordinated and consistent, avoiding problems such as jamming and noise caused by asynchronous movement, and further improving the smoothness and stability of drawer use.

[0039] A second aspect of this application provides an island platform, including the buffer guide rail structure described in the first aspect of this application.

[0040] The island counter described in the second aspect of this application, by placing the buffer component 400 between the center rail 200 and the movable rail 300, can smoothly slow down the closing speed of the drawer, avoiding a large impact force generated at the moment the drawer closes, effectively eliminating the final impact and noise, improving the user experience. It also eliminates the risk of loosening of the traditional independent damping bracket 410 due to long-term impact, reducing the risk of damage to the drawer and its internal items, and helping to extend the drawer's service life. Furthermore, due to the damping force, the drawer will not suddenly fall or jam during the closing process, making the drawer closing process smoother and more stable, improving the overall user experience.

[0041] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.

Claims

1. A buffer guide rail structure, characterized in that, include: Fixed rails are used for fixed connection with the cabinet. The middle rail is slidably nested within the fixed rail; The movable rail is slidably nested within the middle rail and is used to connect to the drawer. The buffer assembly includes a damping bracket, a damping tube, a slider adapter, and a slider core. The damping bracket is located on the inner side of the end of the middle rail. The damping tube is located on the damping bracket and has a piston rod that extends and retracts. The slider adapter is located at the front end of the movable rail and is used to connect with the drawer. The slider core is located at one end of the slider adapter near the damping tube and is used to press the piston rod to retract it.

2. The buffer guide rail structure according to claim 1, characterized in that, The slider adapter is provided with a mounting groove, and the slider core is provided with a rotating shaft, which is rotatably disposed within the mounting groove.

3. The buffer guide rail structure according to claim 2, characterized in that, The piston rod is provided with a slot, and the slider core is provided with an abutment portion, which is embedded in the slot.

4. The buffer guide rail structure according to claim 3, characterized in that, The abutting part is provided with a first inclined surface and a second inclined surface. The inclination angle of the second inclined surface is greater than that of the first inclined surface, so that the second inclined surface and the first inclined surface cooperate to form a double-slope wedge surface.

5. The buffer guide rail structure according to claim 1, characterized in that, The movable rail is provided with a slot, and the slider adapter engages with the slot.

6. The buffer guide rail structure according to claim 1, characterized in that, The buffer assembly also includes a tension spring, one end of which is connected to the front end of the fixed rail, and the other end of which is connected to the movable rail.

7. The buffer guide rail structure according to claim 6, characterized in that, The movable rail is equipped with a slider buckle, and the tension spring is connected to the slider buckle.

8. The buffer guide rail structure according to claim 1, characterized in that, It also includes a synchronization component, which includes a gear and a rack. The gear is disposed on the middle rail, and the rack is disposed on the movable rail. The gear and the rack are meshed together.

9. The buffer guide rail structure according to claim 1, characterized in that, The damping bracket is provided with a locking hole, and the middle rail is provided with a buckle. The buckle cooperates with the locking hole to fasten the damping bracket to the middle rail.

10. An island platform, characterized in that, Includes the buffer guide rail structure as described in any one of claims 1 to 9.