Coupler buffer compression device
By using a limit seat and pressure cylinder to drive the coupler tail frame to compress the coupler buffer, and combining the fixing block and locking bolts to achieve one-time compression, the problem of high labor intensity and high safety hazards of existing devices is solved, and the compression efficiency and safety are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2026-03-24
AI Technical Summary
Existing coupler buffer compression devices are labor-intensive, inefficient, and pose significant safety hazards during the compression process, and cannot achieve full compression in one step.
A limit seat is used to restrict the movement of the front plate, and a pressure cylinder drives the hook tail frame to move and compress the buffer component. The buffer component is locked by a fixing block and locking bolts to prevent the threads from participating in the compression process. Hydraulic driving force is used to achieve compression in one go.
It reduces the labor intensity of personnel, improves compression efficiency, significantly reduces the risk of thread crushing, and reduces safety hazards.
Smart Images
Figure CN224028474U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to locomotive maintenance device technical field especially relates to a car coupler buffer compression device. BACKGROUND
[0002] The car coupler buffer is an important component of the railway locomotive connecting system, is located between the car coupler and the vehicle, and provides buffering for the impact generated in the train starting and braking process. The car coupler buffer has multiple models, and each model has a specific structure. For a 102-type car coupler buffer, the structural components mainly include a coupler tail frame, a buffer, a front plate, a rear plate, and a movable push plate. The front plate and the rear plate are connected to the front end and the rear end of the buffer, respectively, and are located in the coupler tail frame, protruding out of the coupler tail frame on both sides. A plurality of accommodating grooves are provided on the front end of the coupler tail frame facing the rear, and each accommodating groove is used to accommodate a car coupler. The bottom wall of the accommodating groove is provided with a through hole, and a part of the movable push plate is slidably connected in the through hole and can slide forward and backward. Another part of the movable push plate is located between the front plate and the coupler tail frame and is used to abut against the front plate. The front end of the coupler tail frame is also provided with a pin hole, which penetrates along the vertical direction, and a coupler tail pin passes through the pin hole to connect the car coupler and the coupler tail frame.
[0003] In the daily maintenance of the car coupler buffer, it is usually necessary to take out the car coupler buffer from the car coupler box, and then put it back into the car coupler box after maintenance is completed. However, the car coupler buffer after maintenance is in an expanded state that is not compressed, and its external dimensions are larger than the internal dimensions of the car coupler box. Therefore, it is necessary to compress the car coupler buffer before putting it back into the car coupler box. A car coupler buffer dismounting device is provided in the prior art, which rotates four screw rods in sequence by operating a rotating handle to drive the movable push plate to move and thereby compress the buffer. However, due to the large rated impedance force of the buffer, the labor intensity of rotating the screw rods by manpower is large, and the efficiency is low. In addition, the existing solution cannot achieve one-time compression, and it is necessary to repeatedly tighten the four screw rods in sequence. During the compression process, the reverse force of the buffer continuously acts on the screw rods, the risk of thread crushing is increased, and the safety hazard is large. UTILITY MODEL CONTENTS
[0004] The utility model aims to provide a car coupler buffer compression device to solve the problems of large working intensity, low efficiency, and large safety hazard in the process of compressing the car coupler buffer in the existing device.
[0005] The utility model provides a car coupler buffer compression device, which comprises a mounting member, a limiting seat is arranged, and the limiting seat is used to limit the front plate of the car coupler buffer from moving towards a first direction;
[0006] A pressure cylinder is mounted on the mounting member and is used to drive the coupler tail frame of the car coupler buffer to move towards the first direction to compress the buffer of the car coupler buffer;
[0007] A fixed block is arranged in a receiving groove of a drawbar frame of the drawbar buffer and detachably connected with the drawbar frame.
[0008] A locking bolt is threadedly connected with the fixed block, and the locking bolt can pass through the fixed block and abut against a movable push plate of the drawbar buffer.
[0009] As a preferred technical scheme of the drawbar buffer compression device, two locking bolts are threadedly connected with the fixed block, the two locking bolts are arranged in a second direction, and the two locking bolts can abut against the movable push plate, and the first direction is perpendicular to the second direction.
[0010] As a preferred technical scheme of the drawbar buffer compression device, the fixed block is arranged in a receiving groove of a drawbar frame of the drawbar buffer and detachably connected with the drawbar frame.
[0011] As a preferred technical scheme of the drawbar buffer compression device, the fixed block is arranged in a receiving groove of a drawbar frame of the drawbar buffer and detachably connected with the drawbar frame.
[0012] As a preferred technical scheme of the drawbar buffer compression device, the pressure cylinder comprises a power source and an output cylinder, the power source and the output cylinder are drivingly connected, and an output end of the output cylinder is used to drive the drawbar frame to move towards the first direction.
[0013] As a preferred technical scheme of the drawbar buffer compression device, the mounting member comprises a fixedly connected upper box body and a lower box body, a partition plate is arranged between the upper box body and the lower box body, the output cylinder is mounted on the partition plate, and the power source is mounted in the lower box body.
[0014] As a preferred technical scheme of the drawbar buffer compression device, the limiting seat is two, and the two limiting seats are arranged on two side plates of the upper box body.
[0015] As a preferred technical scheme of the drawbar buffer compression device, the upper box body is provided with a first reinforcing rib, and the first reinforcing rib connects the side plate and the end plate of the upper box body.
[0016] As a preferred technical scheme of the drawbar buffer compression device, the upper box body is further provided with a second reinforcing rib, and the second reinforcing rib is located outside the end plate of the upper box body.
[0017] As a preferred technical scheme of the drawbar buffer compression device, the second reinforcing rib is arranged in a plurality of ways, and the plurality of second reinforcing ribs are arranged in a height direction of the upper box body.
[0018] The beneficial effects of the utility model are as follows:
[0019] The utility model provides a car hook buffer compression device, through the limit seat limit front from the board to the first direction movement, pressure jar drive hook tail frame to the first direction movement, to compress buffer piece, subsequently connect fixed block in the accommodation groove, through locking bolt passes through fixed block and movable push plate abuts, to lock buffer piece, make it keep compression state, in the process of compression, pressure jar directly compresses buffer piece through hook tail frame, can realize compression in place once, reduce personnel labour intensity, improve production efficiency, and locking bolt locks buffer piece after compression in place, does not participate in compression process, the risk of thread is crushed greatly reduces, reduces the security hidden danger. BRIEF DESCRIPTION OF DRAWINGS
[0020] Figure 1 It is structure schematic diagram under the first visual angle of car hook buffer mounting device in the utility model embodiment;
[0021] Figure 2 It is structure schematic diagram under the second visual angle of car hook buffer mounting device in the utility model embodiment;
[0022] Figure 3 It is structure schematic diagram under the third visual angle of car hook buffer mounting device in the utility model embodiment;
[0023] Figure 4 It is sectional view of car hook buffer when not being compressed in the utility model embodiment;
[0024] Figure 5 It is sectional view of car hook buffer after compression in the utility model embodiment.
[0025] In the drawing:
[0026] 100, buffer piece, 200, hook tail frame, 210, movable push plate, 220, accommodation groove, 230, pin hole, 300, front from plate, 400, rear from plate, 500, hook tail pin,
[0027] 1, mounting piece, 11, upper box body, 111, limit seat, 112, first reinforcing rib, 113, second reinforcing rib, 114, mounting seat, 12, lower box body, 13, partition,
[0028] 21, power source, 22, output cylinder,
[0029] 3, fixed block, 31, connecting hole, 32, threaded hole,
[0030] 4, locking bolt. DETAILED DESCRIPTION
[0031] The technical solutions of the present application will be described clearly and completely in connection with the drawings. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.
[0032] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", are only for the purpose of description, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and moreover, the first feature is "above", "above" and "above" of the second feature, which includes the first feature above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature is "below", "below" and "below" of the second feature, which includes the first feature below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.
[0033] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0034] The embodiments of the present application will be described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation on the present application.
[0035] The utility model provides a car hook buffer compression device for compressing car hook buffer, the car hook buffer compression device in this embodiment is exclusively used for 102 type car hook buffer, and the 102 type car hook buffer is the standard structure of the field, for being convenient for description, the 102 type car hook buffer is called car hook buffer in this embodiment, and its main structure is briefly described, and the car hook buffer includes hook tail frame 200, buffer piece 100, front slave plate 300, rear slave plate 400 and movable push plate 210, and front slave plate 300 and rear slave plate 400 are connected at the front and rear ends of buffer piece 100 respectively and are located in hook tail frame 200, and protrude from hook tail frame 200 on both sides. A plurality of containing grooves 220 are arranged on the front end of hook tail frame 200 towards the rear, and the plurality of containing grooves 220 are all used for containing car hook, the bottom wall of containing groove 220 is provided with through hole, and a part of movable push plate 210 is slidably connected in the through hole and can slide forwards and backwards, and the other part of movable push plate 210 is located between front slave plate 300 and hook tail frame 200 and is used for abutting with front slave plate 300. The front end of hook tail frame 200 is further provided with pin hole 230, and pin hole 230 penetrates along the vertical direction, and hook tail pin 500 passes through pin hole 230 to connect car hook and hook tail frame 200.
[0036] As Figures 1-5As shown, the coupler buffer compression device comprises a mounting member 1, a pressure cylinder, a fixing block 3 and a locking bolt 4. The mounting member 1 can be provided as a frame structure or a box structure, which is mainly used for mounting and supporting the pressure cylinder and the coupler buffer. The mounting member 1 is provided with a limiting seat 111 for limiting the front from plate 300 of the coupler buffer to move towards the first direction. The pressure cylinder is mounted on the mounting member 1 and used to drive the hook tail frame 200 of the coupler buffer to move towards the first direction to compress the buffer 100 of the coupler buffer. The fixing block 3 is arranged in the accommodating groove 220 of the hook tail frame 200 and detachably connected with the hook tail frame 200. The locking bolt 4 is threadedly connected with the fixing block 3 and can pass through the fixing block 3 and abut against the movable push plate 210 of the coupler buffer. The first direction is from the rear from plate 400 to the front from plate 300 of the coupler buffer, i.e. the side of the front from plate 300 away from the buffer 100 cooperates with the limiting seat 111, so as to limit the forward movement of the front from plate 300; meanwhile, the pressure cylinder is located at the side of the hook tail frame 200 away from the rear from plate 400, i.e. the rear of the hook tail frame 200, and drives the hook tail frame 200 to move forward, and the hook tail frame 200 drives the rear from plate 400 to move forward. At this time, the front from plate 300 cannot move forward under the limitation of the limiting seat 111, the rear from plate 400 moves forward under the driving of the hook tail frame 200, the distance between the front from plate 300 and the rear from plate 400 is reduced, and the buffer 100 is compressed. At the same time that the front from plate 300 cannot move forward, the hook tail frame 200 moves forward, so that there is a gap between the front from plate 300 and the hook tail frame 200, and the movable push plate 210 can move in the gap. At this time, the fixing block 3 is arranged in the accommodating groove 220 of the hook tail frame 200 and detachably connected with the hook tail frame 200, the locking bolt 4 is tightened until abutting against the movable push plate 210, and the movable push plate 210 is pressed on the front from plate 300. After the driving force of the pressure cylinder is removed, the elastic force of the buffer 100 on the front from plate 300 acts on the hook tail frame 200 through the locking bolt 4 and the fixing block 3 in turn, and the elastic force of the buffer 100 on the rear from plate 400 directly acts on the hook tail frame 200, which are equal and opposite, and there is no relative movement among the buffer 100, the front from plate 300 and the rear from plate 400, so as to realize locking the compressed buffer 100.The car coupler buffer compression device of the embodiment limits the front plate 300 from moving towards the first direction through the limiting seat 111, the pressure cylinder drives the coupler tail frame 200 to move towards the first direction, thereby compressing the buffer 100, then connecting the fixed block 3 in the accommodating groove 220, and abutting the movable push plate 210 through the locking bolt 4 passing through the fixed block 3, thereby locking the buffer 100 to keep it in a compressed state. In the compression process, the pressure cylinder directly compresses the buffer 100 through the coupler tail frame 200, which can realize one-time compression to the right position, reduce the labor intensity of personnel, improve the production efficiency, and lock the buffer 100 after it is compressed to the right position, which does not participate in the compression process, and the risk of thread crushing is greatly reduced, reducing the safety hazard.
[0037] Further, the fixing block 3 is provided with two threaded holes 32, the two threaded holes 32 are arranged at intervals along a second direction, that is, two locking bolts 4 are threadedly connected to the fixing block 3, the two locking bolts 4 are arranged at intervals along the second direction, and the two locking bolts 4 can abut against the movable push plate 210. The second direction is the left-right direction of the buffer 100, that is, the first direction and the second direction are perpendicular. When the locking bolt 4 locks the compressed buffer 100, the elastic force of the buffer 100 is borne by the threaded pairs of the two locking bolts 4 and the fixing block 3, thereby reducing the risk of the thread being crushed and reducing the safety hazard. Since the accommodating groove 220 is provided in multiple, the corresponding fixing block 3 is also provided in multiple, and the multiple fixing blocks 3 correspond one by one to the multiple accommodating grooves 220 and are arranged one by one in the multiple accommodating grooves 220. In the embodiment, the accommodating groove 220 is provided in two, and the corresponding fixing block 3 is also provided in two, and two locking bolts 4 are threadedly connected to each fixing block 3, that is, the four locking bolts 4 abut against the movable push plate 210 to lock the compressed buffer 100, and the elastic force of the buffer 100 is borne by the corresponding threaded pairs of the four locking bolts 4, thereby further reducing the risk of the thread being crushed and further reducing the safety hazard. The fixing block 3 and the hook tail frame 200 can be detachably connected by bolts or pins, and in the embodiment, the fixing block 3 and the hook tail frame 200 are detachably connected by the hook tail pin 500 of the drawbar buffer. A connecting hole 31 is formed in the fixing block 3, the fixing block 3 is placed into the accommodating groove 220, the connecting hole 31 in the fixing block 3 is aligned with the pin hole 230 of the hook tail frame 200, the hook tail pin 500 is inserted through the connecting hole 31 and the pin hole 230, and the two ends of the hook tail pin 500 are limited to prevent disengagement, thereby connecting the fixing block 3 and the hook tail frame 200. After the locking bolt 4 locks the buffer 100, the elastic force of the buffer 100 acts on the front plate 300 and is transmitted to the movable push plate 210, the movable push plate 210 transmits the elastic force to the locking bolt 4, the elastic force is transmitted to the fixing block 3 through the threaded pairs between the locking bolt and the fixing block 3, the fixing block 3 transmits the elastic force to the hook tail frame 200 through the pin, and in this process, the front plate 300, the movable push plate 210, the locking bolt 4, the fixing block 3 and the hook tail pin 500 do not move, thereby ensuring the locking of the buffer 100.
[0038] Optionally, to reduce the number of single parts, the multiple fixing blocks 3 can be integrally arranged. For example, the multiple fixing blocks 3 can be fixedly connected or weldedly connected through a common connecting block, or the multiple fixing blocks 3 can be integrally formed.
[0039] Specifically, please refer to Figure 1 and Figure 3 , and combine Figure 4 and Figure 5 ., the pressure cylinder can be air pressure driven, hydraulic driven or electrically driven, the pressure cylinder comprises a power source 21 and an output cylinder 22, the power source 21 and the output cylinder 22 are drivingly connected, and an output end of the output cylinder 22 is used to drive the hook tail frame 200 to move towards the first direction. The power source 21 is selected as a hydraulic pump in the prior art, and the output cylinder 22 is selected as a hydraulic cylinder in the prior art. The output end of the hydraulic cylinder is driven to move the hook tail frame 200 towards the first direction by the hydraulic pump to compress the buffer 100. The hydraulic driving is provided, the output force is larger, and the compression requirement can be better met.
[0040] Further, after the vehicle coupler buffer is compressed and locked, the vehicle coupler buffer needs to be transferred from the vehicle coupler buffer compression device to the vehicle coupler box for installation. Please refer to Figures 1-3 , for the convenience of hoisting operation and meeting the movement requirement of the hook tail frame 200 in the compression process of the vehicle coupler buffer, the mounting piece 1 in the embodiment comprises a fixedly connected upper box body 11 and a lower box body 12, a partition plate 13 is arranged between the upper box body 11 and the lower box body 12, and the output cylinder 22 is mounted on the partition plate 13. Specifically, a mounting seat 114 is arranged on the partition plate 13, the output cylinder 22 is mounted on the mounting seat 114 and detachably connected with the mounting seat 114. The power source 21 is mounted in the lower box body 12. When the vehicle coupler buffer needs to be hoisted, the output cylinder 22 is detached from the mounting seat 114, more operation space is provided for the hoisting of the vehicle coupler buffer, and the hoisting operation is facilitated. By mounting the power source 21 in the lower box body 12, on the one hand, the floor area of the vehicle coupler buffer compression device is reduced, and on the other hand, the power source 21 does not need to be detached during hoisting, and the operation amount is reduced. The top and one end of the upper box body 11 are provided with openings, two limiting seats 111 are arranged on the two side plates of the upper box body 11, and the connecting mode can be bolt connection or welding connection. During compression, the hook tail frame 200 extends from the end provided with the opening, so that the size of the upper box body 11 in the length direction is reduced, and the light weight is improved. After compression and locking, the external force of the pressure cylinder is removed, and the transfer or hoisting device hoists the vehicle coupler buffer from the top of the upper box body 11 to the vehicle coupler box for installation.
[0041] During compression, the pressure cylinder bears a large reverse force, which is finally transmitted to the upper box body 11 through the pressure cylinder. Therefore, to avoid large deformation of the upper box body 11 and cause compression to be not in place, the first reinforcing rib 112 is further arranged on the upper box body 11, and the first reinforcing rib 112 connects the side plate and the end plate of the upper box body 11 to reduce the deformation amount of the upper box body 11.
[0042] Further, please continue to refer to Figure 1 and Figure 3As shown, the upper box body 11 is further provided with a second reinforcing rib 113 located outside the end plate of the upper box body 11. Through the arrangement of the first reinforcing rib 112 and the second reinforcing rib 113, the rigidity and structural strength of the upper box body 11 are further improved, and the deformation amount of the upper box body 11 during compression of the coupler buffer 100 is further reduced. The second reinforcing rib 113 is provided in a plurality of forms and is distributed at intervals along the height direction of the upper box body 11, further improving the rigidity and structural strength of the upper box body 11.
[0043] The related steps of using the coupler buffer compression device in the embodiment to compress the coupler buffer are as follows:
[0044] Place the uncompressed coupler buffer on the mounting piece 1.
[0045] Drive the drawbar frame 200 to move towards the first direction to compress the buffer 100.
[0046] Place the fixing block 3 in the accommodating groove 220 and connect it with the drawbar frame 200.
[0047] Tighten the locking bolt 4 and connect it with the movable push plate 210.
[0048] When compressing the coupler buffer, first place the uncompressed coupler buffer on the mounting piece 1, and the output cylinder 22 can be removed in advance according to actual needs to provide sufficient hoisting space. After the coupler buffer is placed in position, the output cylinder 22 is reinstalled. After placing the coupler buffer, it is necessary to confirm that the movement path of the drawbar frame 200 does not interfere with the mounting piece 1, and then operate the power source 21 to drive the output cylinder 22 to move the drawbar frame 200 towards the first direction to a preset position to compress the buffer 100. Then place the fixing block 3 in the accommodating groove 220, align the pin hole 230 and the connecting hole 31, pass through the drawbar pin 500 and limit the two ends. Corresponding locking bolts 4 are screwed into corresponding threaded holes 32 one by one and tightened until the movable push plate 210 abuts against the front plate 300, so that the movable push plate 210 is pressed tightly on the front plate 300. Finally, operate the output cylinder 22 to disengage from the drawbar frame 200, and operate the hoisting equipment to transfer the compressed coupler buffer to the coupler box for installation.
[0049] After the locking bolt 4 is tightened and abuts against the movable push plate 210, the following steps can be set:
[0050] Remove the output cylinder 22 from the mounting piece 1.
[0051] Before hoisting, remove the output cylinder 22 from the mounting piece 1 to provide more hoisting space and operating space for the hoisting equipment.
[0052] Obviously, the above embodiments of the present application are merely examples for clearly illustrating the present application, and are not intended to limit the implementation modes of the present application. For those skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, it is not necessary and also impossible to exhaust all the implementation modes. Any modification, equivalent replacement and improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application claims.
Claims
1. Vehicle coupling buffer compression device, characterized in that The utility model relates to a vehicle coupler buffer limiting device, including: Mounting piece (1) is provided with limiting seat (111), limiting seat (111) is used for limiting the front from board (300) of vehicle coupler buffer to move towards first direction; Pressure cylinder is installed on mounting piece (1) and is used for driving the hook tail frame (200) of vehicle coupler buffer to move towards first direction to compress the buffer piece (100) of vehicle coupler buffer; Fixed block (3) is used for being arranged in the accommodating groove (220) of hook tail frame (200) of vehicle coupler buffer and is detachably connected with hook tail frame (200); Locking bolt (4) is threadedly connected with fixed block (3), locking bolt (4) can pass through fixed block (3) and is used for abutting with movable push plate (210) of vehicle coupler buffer.
2. The vehicle coupler buffer compression device of claim 1, wherein, Two locking bolts (4) are threadedly connected on the fixed block (3), two locking bolts (4) are spaced apart along the second direction, and two locking bolts (4) can abut with the movable push plate (210), and the first direction is perpendicular to the second direction.
3. A vehicle coupling buffer compression device according to claim 2, characterised in that, The fixed block (3) is provided in a plurality of the accommodating groove (220).
4. A vehicle drawgear buffer compression device according to claim 3, characterised in that, The plurality of fixed blocks (3) are integrally arranged.
5. The vehicle coupler buffer compression device of claim 1, wherein, The pressure cylinder includes a power source (21) and an output cylinder (22), the power source (21) and the output cylinder (22) are drivingly connected, and the output end of the output cylinder (22) is used to drive the hook tail frame (200) to move towards the first direction.
6. A vehicle coupling buffer compression device according to claim 5, characterised in that, The mounting piece includes a fixedly connected upper box body (11) and a lower box body (12), a partition plate (13) is arranged between the upper box body (11) and the lower box body (12), the output cylinder (22) is mounted on the partition plate (13), and the power source (21) is mounted in the lower box body (12).
7. A vehicle coupling buffer compression device according to claim 6, characterised in that, The limiting seat (111) is two, and the two limiting seats (111) are arranged on the two side plates of the upper box body (11) respectively.
8. The vehicle coupler buffer compression device of claim 6, wherein, The upper box body (11) is provided with a first reinforcing rib (112), and the first reinforcing rib (112) connects the side plates and the end plates of the upper box body (11).
9. A vehicle coupling buffer compression device according to claim 8, characterised in that, The upper box body (11) is further provided with a second reinforcing rib (113), and the second reinforcing rib (113) is located outside the end plate of the upper box body (11).
10. A vehicle coupling buffer compression device according to claim 9, characterised in that, The second reinforcing rib (113) is provided in a plurality of, and the plurality of second reinforcing ribs (113) are distributed along the height direction of the upper box body (11).