A buffer device for shunting operation

Abstract

The application relates to a buffer device for a shunting operation, which comprises a rigid contact plate, a base, a buffer reinforcing assembly, a fixing rod and a moving rod. The rigid contact plate comprises a first surface and a second surface arranged in opposite directions, and the first surface is used for contacting a vehicle body. The second surface of the rigid contact plate is arranged towards the base. The buffer reinforcing assembly is arranged between the second surface and the base. The fixing rod is arranged on the surface of the base facing the rigid contact plate, and a buffer cavity is formed in the inside of the fixing rod along the length direction of the fixing rod. The moving rod penetrates through the buffer reinforcing assembly and comprises a first end and a second end. The first end of the moving rod is connected with the rigid contact plate, and the second end of the moving rod is movably arranged in the buffer cavity. A first buffer mechanism is arranged between the buffer reinforcing assembly and the second surface, and a second buffer mechanism is arranged in the inside of the buffer reinforcing assembly; the first buffer mechanism and the second buffer mechanism both form elastic supporting forces distributed along the length direction of the moving rod on the moving rod.

Description

Technical Field

[0001] This application relates to the field of railway transportation technology, and in particular to a shunting operation buffer device. Background Technology

[0002] In railway transportation operations, shunting is one of the core aspects of train operation. All purposeful movements of locomotives and rolling stock, excluding arrival, departure, passage, and section operation, such as dismantling and assembling trains, coupling and uncoupling, transferring vehicles, locomotive alignment, and track switching, fall under the category of shunting. Because shunting operations require frequent movement of locomotives and rolling stock within station lines or specific tracks, collisions between car bodies are prone to occur due to operational errors and improper speed control. This can not only cause structural damage and component failure but also affect operational efficiency and even lead to safety accidents. Therefore, specialized buffer devices are required to prevent collision hazards.

[0003] In the existing technology, the shock absorption and buffering device structure of the train can only adapt to low-frequency and small-amplitude vibrations in turning scenarios, and cannot cope with the high-frequency and large-amplitude impacts generated by direct collisions of the car body during shunting operations. At the same time, the device lacks a multi-stage buffering structure and only relies on the rigid cooperation between the outer shell and the inner core for buffering. Its energy absorption capacity is limited, and the buffering effect is not ideal, making it difficult to meet the actual needs of collision prevention in shunting operations.

[0004] Therefore, there is an urgent need for a buffer device specifically designed for shunting operations, with excellent buffering effect and the ability to help prevent collisions, in order to solve the technical problems of the limited applicability and insufficient buffering capacity of existing devices. Utility Model Content

[0005] Therefore, it is necessary to provide a shunting operation buffer device to address the shortcomings of buffer operations in shunting scenarios.

[0006] A shunting operation buffer device, comprising:

[0007] A rigid contact plate includes a first surface and a second surface disposed opposite to each other, the first surface being used to contact the vehicle body;

[0008] The base, with the second surface facing the base;

[0009] A buffer reinforcement component is disposed between the second surface and the base;

[0010] A fixing rod is provided on the surface of the base facing the rigid contact plate, and a buffer chamber is formed inside the fixing rod along its own length.

[0011] A movable rod is provided through the buffer reinforcement assembly, including a first end and a second end; the first end of the movable rod is connected to the rigid contact plate, and the second end of the movable rod is movably disposed in the buffer chamber;

[0012] A first buffer mechanism is provided between the buffer reinforcement component and the second surface, and a second buffer mechanism is provided inside the buffer reinforcement component; both the first buffer mechanism and the second buffer mechanism provide elastic support force to the moving rod, and the elastic support force is provided along the length direction of the moving rod.

[0013] In one embodiment, the buffer reinforcement component includes: a first buffer plate and a second buffer plate;

[0014] The first buffer plate is sandwiched between the second buffer plate and the second surface; the first buffer mechanism is disposed between the first buffer plate and the second surface; the second buffer mechanism is disposed between the first buffer plate and the second buffer plate.

[0015] The movable rod passes through both the first buffer plate and the second buffer plate, and is provided with a first mating part that cooperates with the first buffer mechanism and a second mating part that cooperates with the second buffer mechanism.

[0016] In one embodiment, the first buffer mechanism includes a first groove disposed on a second surface and a second groove disposed on a first buffer plate; the first groove and the second groove are disposed opposite to each other, and a first compression spring is disposed between the first groove and the second groove;

[0017] The first compression spring includes a first pressing end and a first fixed end; a first mating part is disposed between the first groove and the first pressing end of the first compression spring, and the first fixed end of the first compression spring is connected to the second groove.

[0018] In one embodiment, the second buffer mechanism includes a third groove disposed on the first buffer plate and a fourth groove disposed on the second buffer plate; the third groove and the fourth groove are disposed opposite to each other, and a second compression spring is disposed between the third groove and the fourth groove;

[0019] The second compression spring includes a second extrusion end and a second fixed end; a second mating part is disposed between the third groove and the second extrusion end of the second compression spring, and the second fixed end of the second compression spring is connected to the fourth groove.

[0020] In one embodiment, the cushioning reinforcement component further includes: an elastic cushioning pad sandwiched between the first cushioning plate and the second surface; and the elastic cushioning pad sandwiched between the first cushioning plate and the second cushioning plate.

[0021] In one embodiment, the elastic cushioning pad has several elastic deformation grooves inside.

[0022] In one embodiment, a piston portion is provided at the second end of the movable rod, and the piston portion forms a sealed sliding fit inside the buffer chamber of the fixed rod.

[0023] In one embodiment, a camera device is provided at the top of the base.

[0024] In one embodiment, a stabilizing bracket is provided on the side of the base away from the rigid contact plate.

[0025] In one embodiment, the number of fixed rods, movable rods, first buffer mechanism and second buffer mechanism are matched.

[0026] The aforementioned shunting operation buffer device includes: a rigid contact plate, a base, a buffer reinforcement assembly, a fixed rod, and a movable rod. The rigid contact plate includes a first surface and a second surface disposed opposite to each other, the first surface being used to contact the car body. The second surface of the rigid contact plate faces the base. The buffer reinforcement assembly is disposed between the second surface and the base. The fixed rod is disposed on the surface of the base facing the rigid contact plate, and a buffer chamber is formed inside the fixed rod along its length. The movable rod passes through the buffer reinforcement assembly and includes a first end and a second end. The first end of the movable rod is connected to the rigid contact plate, and the second end of the movable rod is movably disposed within the buffer chamber. A first buffer mechanism is disposed between the buffer reinforcement assembly and the second surface, and a second buffer mechanism is disposed inside the buffer reinforcement assembly; both the first and second buffer mechanisms provide elastic support for the movable rod, and the elastic support force is arranged along the length direction of the movable rod. Through the synergistic effect of the elastic support of the dual buffer mechanism, the impact force between the car body and the equipment during shunting operations can be effectively buffered, the impact force transmission time can be extended, and the instantaneous impact load can be significantly reduced. This not only protects the car body structure from damage, but also reduces the wear of the equipment's own parts, thereby improving the service life of the buffer device and the overall safety and stability of shunting operations. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the shunting operation buffer device provided in the embodiments of this application.

[0028] Figure 2 This is an assembly diagram of the shunting operation buffer device provided in the embodiments of this application.

[0029] Figure 3 This is a cross-sectional view of the shunting operation buffer device provided in the embodiments of this application.

[0030] Figure 4 for Figure 3 Enlarged view of the local structure at point A in the middle.

[0031] Icon labels:

[0032] 1000, Rigid contact plate; 1001, First groove;

[0033] 2000, base;

[0034] 3000, Fixed rod; 3001, Buffer chamber;

[0035] 4000, Moving rod; 4001, First end; 4002, Second end; 4003, First mating part; 4004, Second mating part;

[0036] 5000, First buffer plate; 5001, Second groove; 5002, Third groove;

[0037] 6000, Second buffer plate; 6001, Fourth groove; 6002, Second compression spring;

[0038] 7000, elastic cushioning pad; 7001, elastic deformation groove;

[0039] 8000, Camera device; 9000, Stabilizing bracket. Detailed Implementation

[0040] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0041] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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, and therefore should not be construed as a limitation of this application.

[0042] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0043] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0044] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0045] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0046] See Figure 1 and Figure 2 As shown, Figure 1 This is a schematic diagram of the shunting operation buffer device provided in the embodiments of this application. Figure 2 This is a schematic diagram of the assembly of a shunting operation buffer device provided in an embodiment of this application. The shunting operation buffer device includes: a rigid contact plate 1000, a base 2000, a buffer reinforcement assembly, a fixed rod 3000, and a movable rod 4000. The rigid contact plate 1000 includes a first surface and a second surface disposed opposite to each other, wherein the first surface is used to contact the car body during shunting operations. The second surface of the rigid contact plate 1000 faces the base 2000. The buffer reinforcement assembly is disposed between the second surface and the base 2000. The fixed rod 3000 is disposed on the surface of the base 2000 facing the rigid contact plate 1000, and a buffer chamber 3001 is formed inside the fixed rod 3000 along its length.

[0047] The movable rod 4000 passes through the buffer reinforcement assembly and includes a first end 4001 and a second end 4002. The first end 4001 of the movable rod 4000 is connected to the rigid contact plate 1000, and the second end 4002 of the movable rod 4000 is movably disposed within the buffer chamber 3001 of the fixed rod 3000. A first buffer mechanism is provided between the buffer reinforcement assembly and the second surface, and a second buffer mechanism is provided inside the buffer reinforcement assembly; both the first and second buffer mechanisms provide elastic support for the movable rod 4000, and the elastic support force is provided along the length direction of the movable rod 4000.

[0048] Through the synergistic effect of the elastic support of the dual buffer mechanism, the impact force between the car body and the equipment during shunting operations can be effectively buffered, the impact force transmission time can be extended, and the instantaneous impact load can be significantly reduced. This not only protects the car body structure from damage, but also reduces the wear of the equipment's own parts, thereby improving the service life of the buffer device and the overall safety and stability of shunting operations.

[0049] The rigid contact plate 1000 serves as the initial force-bearing component in contact with the vehicle body. Its opposing first and second surfaces respectively bear the functions of contacting the vehicle body and transmitting force, ensuring that the impact load of the vehicle body is evenly transmitted to the subsequent structure and avoiding localized damage to the vehicle body or device caused by localized stress concentration. The base 2000 provides a stable support foundation for the entire device. The buffer reinforcement component is set between the second surface of the rigid contact plate 1000 and the base 2000. Together with the buffer chamber 3001 inside the fixed rod 3000, it provides space for the movement of the moving rod 4000. Together with the moving rod 4000 that passes through the buffer reinforcement component, it constructs a force transmission path, so that the impact force can be smoothly transmitted along the length of the moving rod 4000, avoiding the diffusion of force. Meanwhile, the first buffer mechanism between the buffer reinforcement component and the second surface, and the second buffer mechanism inside the buffer reinforcement component, both provide elastic support for the moving rod 4000 along its length. The synergistic effect of the dual buffer mechanisms can absorb and attenuate the impact energy in stages, effectively coping with the high-frequency and large-amplitude impacts generated by direct collisions of the car body during shunting operations. This overcomes the limitation of existing devices that are only suitable for low-frequency and small-amplitude vibrations, extends the impact force transmission time, and significantly reduces the instantaneous impact load. Ultimately, this not only avoids damage to the car body structure due to impact and reduces the wear of the device's own components during impact, but also significantly improves the service life of the buffer device, ensuring the overall safety and stability of shunting operations.

[0050] In some embodiments of this application, reference is made to the appendix. Figure 3 and Figure 4 , Figure 3 This is a cross-sectional view of the shunting operation buffer device provided in the embodiments of this application. Figure 4 for Figure 3Enlarged view of the partial structure at point A. The buffer reinforcement assembly shown includes: a first buffer plate 5000 and a second buffer plate 6000.

[0051] The first buffer plate 5000 is sandwiched between the second buffer plate 6000 and the second surface; the first buffer mechanism is disposed between the first buffer plate 5000 and the second surface; the second buffer mechanism is disposed between the first buffer plate 5000 and the second buffer plate 6000.

[0052] The movable rod 4000 passes through both the first buffer plate 5000 and the second buffer plate 6000, and is provided with a first mating part 4003 that cooperates with the first buffer mechanism and a second mating part 4004 that cooperates with the second buffer mechanism.

[0053] By using a layered design with double buffer plates and precise linkage between the mating parts, the impact force can be transmitted to different buffering mechanisms in stages, achieving orderly layering of the buffering process, avoiding overload of a single mechanism, and improving the overall load-bearing capacity of the buffering system.

[0054] In some embodiments of this application, the first buffer mechanism includes a first groove 1001 disposed on the second surface and a second groove 5001 disposed on the first buffer plate 5000; the first groove 1001 and the second groove 5001 are disposed opposite to each other, and a first compression spring (not shown in the figure) is disposed between the first groove 1001 and the second groove 5001.

[0055] The first compression spring includes a first pressing end and a first fixed end; a first mating part 4003 is disposed between the first groove 1001 and the first pressing end of the first compression spring, and the first fixed end of the first compression spring is connected to the second groove 5001. The first pressing end of the first compression spring abuts against the first mating part 4003 (the first mating part 4003 is located between the first groove 1001 and the first pressing end), and the first fixed end is connected to the second groove 5001. This arrangement provides a limiting guide for the spring through the groove, ensuring that the spring extends and retracts along the length of the moving rod 4000. The first mating part 4003 can directly transmit the impact force borne by the rigid contact plate 1000 to the first compression spring, enabling the first compression spring to efficiently perform its elastic buffering function and initially absorb and attenuate the impact energy.

[0056] In some embodiments of this application, the second buffer mechanism includes a third groove 5002 disposed on the first buffer plate 5000 and a fourth groove 6001 disposed on the second buffer plate 6000; the third groove 5002 and the fourth groove 6001 are disposed opposite to each other, and a second compression spring 6002 is disposed between the third groove 5002 and the fourth groove 6001.

[0057] The second compression spring 6002 includes a second pressing end and a second fixed end; a second mating part 4004 is disposed between the third groove 5002 and the second pressing end of the second compression spring 6002, and the second fixed end of the second compression spring 6002 is connected to the fourth groove 6001. This arrangement forms a progressive buffer structure with the first buffer mechanism. The third groove 5002 and the fourth groove 6001 also guide and limit the second compression spring 6002. The second mating part 4004 transmits the impact force initially attenuated by the first buffer mechanism to the second compression spring 6002, achieving secondary buffering and further reducing the impact load.

[0058] In some embodiments of this application, the cushioning reinforcement assembly further includes an elastic cushioning pad 7000, which is sandwiched between the first cushioning plate 5000 and the second surface; and another elastic cushioning pad 7000 is sandwiched between the first cushioning plate 5000 and the second cushioning plate 6000.

[0059] The buffer reinforcement assembly places elastic buffer pads 7000 between the first buffer plate 5000 and the second surface of the rigid contact plate 1000, and between the first buffer plate 5000 and the second buffer plate 6000, respectively, thus constructing a protective system combining rigid structure and flexible buffering. On the one hand, the elastic buffer pads 7000 can fill the assembly gaps between the rigid plates, preventing the rigid contact plate 1000, the first buffer plate 5000, and the second buffer plate 6000 from making direct hard contact when transmitting impacts, reducing wear and collision damage on the plate surfaces, and extending the service life of each structure. On the other hand, the elastic buffer pads 7000 can absorb high-frequency and small-amplitude impact vibrations during shunting operations by relying on the elastic deformation characteristics of their own material. These vibrations are difficult to effectively weaken by rigid buffer components such as the first compression spring and the second compression spring. The supplementary role of the elastic buffer pads 7000 can make the overall buffering process smoother, further reducing the impact load on the car body and the equipment itself.

[0060] In some embodiments of this application, the elastic buffer pad 7000 has several elastic deformation grooves 7001 inside.

[0061] Multiple elastic deformation grooves 7001 are formed inside the elastic buffer pad 7000 to reduce the deformation resistance of the elastic buffer pad 7000, allowing it to undergo elastic deformation more quickly and fully when subjected to impact, thereby improving the energy absorption efficiency per unit time and avoiding the problem of impact transmission lag caused by the buffer pad's untimely deformation. Furthermore, the deformation direction of the elastic buffer pad 7000 is guided, concentrating the deformation in the groove area and preventing localized stress concentration. Without deformation grooves, the buffer pad is prone to permanent deformation or tearing due to excessive localized compression. The deformation grooves ensure more uniform deformation of the buffer pad, significantly improving its durability for repeated use and ensuring stable cushioning performance over long-term use.

[0062] In some embodiments of this application, a piston portion is provided at the second end 4002 of the movable rod 4000, and the piston portion forms a sealed sliding fit inside the buffer chamber 3001 of the fixed rod 3000. The piston portion at the second end 4002 of the movable rod 4000, forming a sealed sliding fit within the buffer chamber 3001 of the fixed rod 3000, introduces damping buffering to compensate for the inadequacy of a single spring buffer. When the vehicle body impact causes the movable rod 4000 to move towards the base 2000, the piston portion slides within the sealed buffer chamber 3001, compressing the medium (such as air or hydraulic oil) within the chamber and generating a reverse damping force. This damping force can slow down the movement speed of the moving rod 4000, preventing it from rebounding rapidly due to the instantaneous release of the spring elasticity, thereby preventing secondary impacts. At the same time, the damping force can continuously and smoothly attenuate the impact energy, making the transmission process of impact loads smoother. Especially for sudden large impacts during shunting operations, it can further reduce the risk of damage to the car body structure and equipment components caused by instantaneous loads.

[0063] In some embodiments of this application, a camera device 8000 is installed at the top of the base 2000. Installing the camera device 8000 at the top of the base 2000 breaks the limitation of traditional buffer devices that can only provide passive protection, achieving dual safety assurance by combining active monitoring and passive buffering. The camera device 8000 can capture the movement trajectory, approach speed, and relative distance of the car body during shunting operations in real time. If a collision risk is detected, it can link with the control system to issue a warning signal, reminding operators to adjust the car speed or work path in time, reducing the occurrence of collision accidents from the source. On the other hand, if a collision occurs, the camera device 8000 can completely record key information before and during the collision, such as the car body contact angle and the state at the moment of impact, providing intuitive data support for subsequent analysis of the collision cause, optimization of shunting operation processes, and improvement of buffer device performance, thereby enhancing the overall safety and traceability of shunting operations.

[0064] In some embodiments of this application, a stabilizing bracket 9000 is provided on the side of the base 2000 opposite to the rigid contact plate 1000. Providing a stabilizing bracket 9000 on the side of the base 2000 opposite to the rigid contact plate 1000 is crucial to ensuring the stable operation of the buffer device under impact. On one hand, the stabilizing bracket 9000 increases the contact area between the base 2000 and the mounting foundation (such as a trackside support structure), dispersing the pressure of the impact load on the mounting foundation and preventing the base 2000 from tipping over, shifting, or tilting when subjected to vehicle impact. On the other hand, if the base 2000 shakes or shifts, it will cause a misalignment of the coaxiality between the moving rod 4000 and the fixed rod 3000, as well as a shift in the force direction of the first and second buffer mechanisms, thereby weakening the buffering effect. The stabilizing bracket 9000 can fix the position of the base 2000, ensuring that the moving rod 4000 slides along a preset direction and the spring buffer extends and retracts axially, guaranteeing the efficient synergistic effect of each buffer structure and preventing buffer failure due to device instability.

[0065] The fixed rod 3000, movable rod 4000, first buffer mechanism, and second buffer mechanism are arranged in a matching number. Their core function is to achieve uniform distribution of impact load and stable and controllable buffer performance. On the one hand, the matching arrangement allows the impact load of the vehicle body borne by the rigid contact plate 1000 to be synchronously transferred to the corresponding fixed rod 3000, first buffer mechanism, and second buffer mechanism through multiple movable rods 4000, avoiding damage to a single buffer unit due to overload and significantly improving the overall load-bearing capacity of the device. On the other hand, the coordinated work of multiple buffer units ensures uniform buffering force in all areas of the rigid contact plate 1000, preventing the rigid contact plate 1000 from tilting due to insufficient local buffering force, thereby avoiding excessive local compression between the vehicle body and the contact plate, protecting the vehicle body structure from damage caused by non-uniform impacts, and extending the service life of the buffer device.

[0066] In some embodiments of this application, the number of fixed rods 3000, movable rods 4000, first buffer mechanism and second buffer mechanism are matched.

[0067] During shunting operations, when the car body collides with the shunting operation buffer device of this application, the car body first contacts the first surface of the rigid contact plate 1000, and the impact force of the car body is first transmitted to the rigid contact plate 1000. Since the second surface of the rigid contact plate 1000 is connected to the first end 4001 of the moving rod 4000, the impact force will simultaneously drive the moving rod 4000 to move towards the base 2000. At this time, the first mating part 4003 on the moving rod 4000 will compress the first compression spring located between the first groove 1001 on the second surface of the rigid contact plate 1000 and the second groove 5001 on the first buffer plate 5000. The rigid contact plate 1000 is compressed and generates a reverse elastic support force, initially absorbing and attenuating some of the impact energy. Simultaneously, the second surface of the rigid contact plate 1000 presses against the elastic buffer pad 7000 sandwiched between it and the first buffer plate 5000. The elastic deformation groove 7001 inside the elastic buffer pad 7000 deforms, further assisting in absorbing the impact energy and preventing direct hard contact between the rigid contact plate 1000 and the first buffer plate 5000. As the moving rod 4000 continues to move towards the base 2000, the second mating part 4004 on the moving rod 4000 presses against the third groove 5002 on the first buffer plate 5000 and the fourth groove 5004 on the second buffer plate 6000. The second compression spring 6002 between the grooves 6001 is compressed and generates another reverse elastic support force, which performs secondary buffering and energy absorption on the remaining impact force after it has been attenuated by the first buffer mechanism. At the same time, the elastic buffer pad 7000 between the first buffer plate 5000 and the second buffer plate 6000 also deforms, further assisting in weakening the impact and preventing rigid collision between the first buffer plate 5000 and the second buffer plate 6000. During this process, the piston part at the second end 4002 of the moving rod 4000 slides in a sealed manner inside the buffer chamber 3001 of the fixed rod 3000, sealing the medium (such as air or hydraulic oil) in the chamber. The movement of the piston generates damping resistance, slowing down the movement speed of the moving rod 4000, forming a third buffer, further extending the impact transmission time and reducing the instantaneous impact load; while the stabilizing bracket 9000 on the side of the base 2000 away from the rigid contact plate 1000 can ensure that the entire device remains stable when impacted, avoiding tilting or displacement. The fixed rod 3000, the moving rod 4000, the first buffer mechanism and the second buffer mechanism are set in a matching manner, which can evenly distribute the impact force to each buffer unit, preventing overload of individual structures. Finally, through the coordinated cooperation of each structure, a multi-stage and efficient buffering of the impact on the vehicle body is achieved, protecting the vehicle body and the device itself from damage.

[0068] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0069] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A shunting operation buffer device, characterized in that, include: A rigid contact plate includes a first surface and a second surface disposed opposite to each other, the first surface being used to contact the vehicle body; The base, wherein the second surface is disposed facing the base; A buffer reinforcement component is disposed between the second surface and the base; A fixing rod is disposed on the surface of the base facing the rigid contact plate, and a buffer chamber is formed inside the fixing rod along its own length. A movable rod is provided through the buffer reinforcement assembly and includes a first end and a second end; the first end of the movable rod is connected to the rigid contact plate, and the second end of the movable rod is movably disposed in the buffer chamber; A first buffer mechanism is provided between the buffer reinforcement component and the second surface, and a second buffer mechanism is provided inside the buffer reinforcement component; both the first buffer mechanism and the second buffer mechanism provide elastic support force to the moving rod, and the elastic support force is provided along the length direction of the moving rod.

2. The shunting operation buffer device according to claim 1, characterized in that, The buffer reinforcement assembly includes: a first buffer plate and a second buffer plate; The first buffer plate is sandwiched between the second buffer plate and the second surface; the first buffer mechanism is disposed between the first buffer plate and the second surface; the second buffer mechanism is disposed between the first buffer plate and the second buffer plate. The movable rod passes through both the first buffer plate and the second buffer plate, and is provided with a first mating part that cooperates with the first buffer mechanism and a second mating part that cooperates with the second buffer mechanism.

3. The shunting operation buffer device according to claim 2, characterized in that, The first buffer mechanism includes a first groove disposed on the second surface and a second groove disposed on the first buffer plate; the first groove and the second groove are disposed opposite to each other, and a first compression spring is disposed between the first groove and the second groove; The first compression spring includes a first pressing end and a first fixed end; the first mating part is disposed between the first groove and the first pressing end of the first compression spring, and the first fixed end of the first compression spring is connected to the second groove.

4. The shunting operation buffer device according to claim 3, characterized in that, The second buffer mechanism includes a third groove disposed on the first buffer plate and a fourth groove disposed on the second buffer plate; the third groove and the fourth groove are disposed opposite to each other, and a second compression spring is disposed between the third groove and the fourth groove; The second compression spring includes a second pressing end and a second fixed end; the second mating part is disposed between the third groove and the second pressing end of the second compression spring, and the second fixed end of the second compression spring is connected to the fourth groove.

5. The shunting operation buffer device according to claim 4, characterized in that, The cushioning reinforcement component further includes: an elastic cushioning pad, which is sandwiched between the first cushioning plate and the second surface; and the elastic cushioning pad is sandwiched between the first cushioning plate and the second cushioning plate.

6. The shunting operation buffer device according to claim 5, characterized in that, The elastic buffer pad has several elastic deformation grooves inside.

7. The shunting operation buffer device according to claim 1, characterized in that, The second end of the movable rod is provided with a piston portion, which forms a sealed sliding fit inside the buffer chamber of the fixed rod.

8. The shunting operation buffer device according to claim 1, characterized in that, A camera device is installed at the top of the base.

9. The shunting operation buffer device according to claim 1, characterized in that, A stabilizing bracket is provided on the side of the base away from the rigid contact plate.

10. The shunting operation buffer device according to claim 4, characterized in that, The fixed rod, the movable rod, the first buffer mechanism, and the second buffer mechanism are configured in matching quantities.

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