Mechanical buffering device for road surface

Abstract

The utility model provides a mechanical buffering device for a pavement, and relates to the field of pavement slab buffering. The mechanical buffer device for the road surface comprises a movable base assembly, a buffer swing frame assembly, an elastic buffer assembly and a road surface guide frame assembly. The lower end of the buffering swing frame assembly is connected to the front end of the movable base assembly in a sliding mode, the elastic buffering assembly is arranged at the lower end of the buffering swing frame assembly and in the movable base assembly, and the lower end of the road surface guiding frame assembly is rotationally connected to the rear end of the movable base assembly. The mechanical buffering device for the road surface is external, convenient to transfer and high in practicability, elastic damping is adjusted through the elastic buffering assembly, the downward swinging angle of the road surface guiding frame assembly is convenient to adjust, the downward movement stroke of the road surface is controlled, the road surface guiding frame assembly guides the road surface to be released, and the road surface is released continuously and smoothly; even if the container is released on multiple sections of road surfaces, the container can be guided to be released through the road surface guide frame assembly.

Description

TECHNICAL FIELD

[0001] The utility model relates to road surface board buffering technical field, specifically, relate to a mechanical buffer device for road surface. BACKGROUND

[0002] When the folding road surface is laid, the road surface needs to be unfolded from the container, but the unfolded road surface falls under the action of gravity, and is easy to hit the container or the ground, and the folding road surfaces also hit each other, in the process of hitting, on the one hand, the road surface or the container is easy to be damaged, on the other hand, the impact sound is also relatively large, which is easy to cause personnel discomfort, and the corresponding buffering structure needs to be used to reduce the impact caused by the road surface.

[0003] In the related art, the mechanical buffer device for road surface directly sets the spring between the guide wheel and the supporting rod, the spring provided by the spring is not convenient to adjust, and the mechanical buffer device for road surface is directly mounted on the container end of the folding road surface, only the first end folding road surface container can buffer the road surface, and the use is limited. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving one of the technical problems in the prior art. Therefore, the utility model provides a mechanical buffer device for road surface, which is external, convenient for multiple equipment rotation, practical, has the effect of guiding the road surface to be discharged, and also has the effect of adjusting the buffer spring damping.

[0005] The mechanical buffer device for road surface according to the utility model embodiment comprises a mobile base assembly, a buffer swing frame assembly, an elastic buffer assembly and a road surface guide frame assembly.

[0006] The lower end of the buffer swing frame assembly is slidably connected to the front end of the mobile base assembly, the elastic buffer assembly is arranged in the lower end of the buffer swing frame assembly and the inside of the mobile base assembly, the lower end of the road surface guide frame assembly is rotatably connected to the rear end of the mobile base assembly, and the upper end of the buffer swing frame assembly is rotatably connected to the upper end of the road surface guide frame assembly.

[0007] According to some embodiments of the utility model, the mobile base assembly includes mobile base frame, slide, transverse installation rod, reinforcing rod, universal wheel and top locking mechanism, the slide is arranged on both sides of the mobile base frame front end upper portion, the buffer swing frame assembly lower end is slidably connected in the slide, the transverse installation rod is fixedly connected with the mobile base frame internal transverse, one end of the elastic buffer assembly is connected with the transverse installation rod, the reinforcing rod is connected between the transverse installation rod and the mobile base frame, the universal wheel is fixedly connected with the mobile base frame internal four corners, the top locking mechanism is arranged in the mobile base frame lower portion four corners.

[0008] According to some embodiments of the utility model, the top locking mechanism includes mounting plate, reinforcing plate, threaded sleeve, threaded rod, top seat and rotating rod, the reinforcing plate is fixedly connected with the mounting plate lower side four, the threaded sleeve outer wall is fixedly connected between the reinforcing plate lower end, the threaded rod upper end is screwed into the threaded sleeve, the top seat is connected to the threaded rod bottom end, the rotating rod is equidistantly connected to the threaded rod lower end periphery.

[0009] According to some embodiments of the utility model, the buffer swing frame assembly includes swing lever, upper connecting rod, connecting cylinder, lower connecting rod, fixed shaft, roller and first hanging ring, the swing lever is provided with two, the upper connecting rod is connected to the upper end of two swing levers, the lower connecting rod is connected to the lower end of two swing levers, the connecting cylinder is fixedly penetrated into the top end of the swing lever, the top end of the swing lever is rotationally connected to the road surface guide frame assembly through the connecting cylinder, the fixed shaft is fixedly connected to the outer side of the swing lever bottom end, the roller is rotationally connected to the fixed shaft, the roller rolls in the slide, the first hanging ring is fixedly connected to the lower connecting rod, one end of the elastic buffer assembly is hung to the first hanging ring.

[0010] According to some embodiments of the utility model, the elastic buffer assembly includes connecting pipe, second hanging ring, hook spring, adjusting bolt and adjusting nut, the second hanging ring is fixedly connected to the front side of the connecting pipe, one end of the hook spring is hung to the second hanging ring, the other end of the hook spring is hung to the buffer swing frame assembly lower end, the adjusting bolt passes through the connecting pipe and the transverse installation rod in turn, the adjusting nut is screwed on the adjusting bolt, and the adjusting nut is pressed on the transverse installation rod.

[0011] According to some embodiments of the utility model, the road surface guide frame assembly includes outer arcuate connecting frame, ear plate, connecting seat, arcuate mounting seat and guide wheel, the ear plate is fixedly connected with both sides of lower end of lower part of outer arcuate connecting frame, both sides of rear end of mobile base frame are provided with double ear seats, the ear plate is rotatably connected with double ear seats, the connecting seat is fixedly connected with both sides of upper end of lower part of outer arcuate connecting frame respectively, the upper end of buffer swing frame assembly is rotatably connected with connecting seat, the arcuate mounting seat is fixedly connected with both sides of upper part of arcuate connecting frame, the guide wheel is rotatably connected in arcuate mounting seat at intervals.

[0012] The utility model discloses the beneficial effect is: through mobile base assembly, move the road surface with mechanical buffer device to the container of first end, when road surface separates container, road surface falls under the action of gravity, and road surface hits on road surface guide frame assembly with impact force, and under the action of road surface gravity and impact force, the upper end of road surface guide frame assembly swings down, and the upper end of buffer swing frame assembly swings down along with road surface guide frame assembly, and the lower end of buffer swing frame assembly slides along the front end of mobile base assembly, and the lower end of buffer swing frame assembly pulls elastic buffer subassembly and lengthens, and the elasticity of elastic buffer subassembly gradually increases, and then elastic buffer subassembly recovers, and the elasticity of elastic buffer subassembly reduces, and the impact force of road surface is buffered through the reciprocating lengthening and recovery of elastic buffer subassembly. One, the road surface with mechanical buffer device of this road surface is external and convenient to shift, and practicality is strong, two, the elasticity of elastic buffer subassembly is adjusted, and the angle of road surface guide frame assembly swinging down is adjusted, and the stroke of road surface moving down is controlled, three, the road surface guide frame assembly guides the release of road surface, and the release of road surface is continuous and smooth, even if encountering multiple road surface release containers, can also be guided and released through road surface guide frame assembly.

[0013] The additional aspects and advantages of the utility model will be partly given in the following description, partly will become obvious from the following description, or be understood by the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme of the utility model embodiment, the following will be to the utility model embodiment needed to use the brief introduction of drawing, should understand, the following drawing only shows some embodiments of the utility model, therefore should not be regarded as the limited scope, for the ordinary skilled person in the art, under the premise of not paying the creative labor, can also obtain other related drawings according to these drawings.

[0015] Figure 1 It is the three-dimensional structure schematic diagram of the road surface with mechanical buffer device according to the utility model embodiment;

[0016] Figure 2 It is the three-dimensional structure schematic diagram of mobile base assembly according to the utility model embodiment.

[0017] Figure 3 is a perspective structural schematic view of a top-tight locking mechanism according to an embodiment of the present application;

[0018] Figure 4 is a perspective structural schematic view of a buffer swing frame assembly according to an embodiment of the present application;

[0019] Figure 5 is a perspective structural schematic view of an elastic buffer assembly according to an embodiment of the present application;

[0020] Figure 6 is a perspective structural schematic view of a road surface guide frame assembly according to an embodiment of the present application.

[0021] Icon: 100 - mobile base assembly; 110 - mobile base frame; 120 - slide; 130 - transverse mounting rod; 140 - reinforcing rod; 150 - universal wheel; 160 - top-tight locking mechanism; 161 - mounting plate; 162 - reinforcing plate; 163 - threaded sleeve; 164 - threaded rod; 165 - top-tight seat; 166 - rotating rod; 170 - double-ear seat; 200 - buffer swing frame assembly; 210 - swing rod; 220 - upper connecting rod; 230 - connecting cylinder; 240 - lower connecting rod; 250 - fixed shaft; 260 - roller; 270 - first hanging ring; 300 - elastic buffer assembly; 310 - connecting pipe; 320 - second hanging ring; 330 - hook spring; 340 - adjusting bolt; 350 - adjusting nut; 400 - road surface guide frame assembly; 410 - outer arc-shaped connecting frame; 420 - ear plate; 430 - connecting seat; 440 - arc-shaped mounting seat; 450 - guide wheel. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be described below with reference to the drawings.

[0023] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0024] The road surface mechanical buffer device according to the embodiments of the present application will be described below with reference to the drawings.

[0025] Please refer to Figures 1 to 6The utility model discloses a mechanical buffer device for road surface, including: mobile base subassembly 100, buffer swing frame subassembly 200, elastic buffer subassembly 300 and road surface guide frame subassembly 400.

[0026] Please refer to Figure 1 Buffer swing frame subassembly 200 lower end sliding connection is in mobile base subassembly 100 front end, and elastic buffer subassembly 300 sets up in buffer swing frame subassembly 200 lower end and mobile base subassembly 100 inside, and road surface guide frame subassembly 400 lower end rotationally connected in mobile base subassembly 100 rear end, and buffer swing frame subassembly 200 upper end rotationally connected in road surface guide frame subassembly 400 upper end. Through mobile base subassembly 100, move the mechanical buffer device for road surface to the container front end of first end, when road surface is separated from container, road surface falls under the action of gravity, and road surface is hit on road surface guide frame subassembly 400 with impact force, and under the action of road surface gravity and impact force, road surface guide frame subassembly 400 upper end swings downward, and buffer swing frame subassembly 200 upper end swings downward along with road surface guide frame subassembly 400, and buffer swing frame subassembly 200 lower end slides along mobile base subassembly 100 front end, and buffer swing frame subassembly 200 lower end pulls elastic buffer subassembly 300 and elongates, and the elasticity of elastic buffer subassembly 300 gradually increases, and then elastic buffer subassembly 300 recovers, and the elasticity of elastic buffer subassembly 300 reduces, and through the reciprocating elongation and recovery of elastic buffer subassembly 300, the impact of road surface is buffered.

[0027] Please refer to Figures 1 to 2The mobile base assembly 100 comprises a mobile base frame 110, a slide 120, a transverse mounting rod 130, a reinforcing rod 140, a universal wheel 150 and a jacking locking mechanism 160. The slide 120 is arranged on both sides of the upper end of the mobile base frame 110. The lower end of the buffer swing frame assembly 200 is slidingly connected in the slide 120. The transverse mounting rod 130 is fixedly connected to the transverse direction inside the mobile base frame 110. One end of the elastic buffer assembly 300 is connected to the transverse mounting rod 130. The reinforcing rod 140 is connected between the transverse mounting rod 130 and the mobile base frame 110. The universal wheel 150 is fixedly connected to the four corners inside the mobile base frame 110. The jacking locking mechanism 160 is arranged on the four corners of the lower part of the mobile base frame 110. The mobile base frame 110 is transported by the universal wheel 150. After the mobile base frame 110 is moved to the designated position, the position is locked by the jacking locking mechanism 160. The transverse mounting rod 130 and the reinforcing rod 140 jointly strengthen the strength of the mobile base frame 110.

[0028] Please refer to Figures 1 to 3 The jacking locking mechanism 160 comprises a mounting plate 161, a reinforcing plate 162, a threaded sleeve 163, a threaded rod 164, a jacking seat 165 and a rotating rod 166. The reinforcing plate 162 is fixedly connected to the four corners of the lower side of the mounting plate 161. The outer wall of the threaded sleeve 163 is fixedly connected to the lower end between the reinforcing plates 162. The upper end of the threaded rod 164 is threadedly inserted into the threaded sleeve 163. The jacking seat 165 is connected to the bottom end of the threaded rod 164. The rotating rod 166 is connected to the periphery of the lower end of the threaded rod 164 at equal intervals. When the jacking locking mechanism 160 is used to lock the position, the threaded rod 164 is rotated by the rotating rod 166. According to the threaded transmission principle, the threaded rod 164 gradually exits the threaded sleeve 163. The threaded rod 164 drives the jacking seat 165 to abut against the supporting surface, thereby locking the position of the mobile base frame 110.

[0029] Please refer to Figures 1 to 4, the buffer swing frame assembly 200 includes swing rods 210, an upper connecting rod 220, a connecting cylinder 230, a lower connecting rod 240, a fixed shaft 250, a roller 260, and a first hanging ring 270, the swing rods 210 are provided as two, the upper ends of the two swing rods 210 are connected through the upper connecting rod 220, the lower ends of the two swing rods 210 are connected through the lower connecting rod 240, the connecting cylinder 230 is fixedly penetrated through the top ends of the swing rods 210, the top ends of the swing rods 210 are rotationally connected to the road surface guide frame assembly 400 through the connecting cylinder 230, the fixed shaft 250 is fixedly connected to the outer side of the bottom ends of the swing rods 210, the roller 260 is rotationally connected to the fixed shaft 250, the roller 260 rolls in the slide 120, the first hanging ring 270 is fixedly connected to the lower connecting rod 240, and one end of the elastic buffer assembly 300 is hung to the first hanging ring 270. The swing rods 210, the upper connecting rod 220, and the lower connecting rod 240 constitute a rectangular main frame, the swing rods 210 swing downward along with the road surface guide frame assembly 400, the swing rods 210 rotate around the connecting cylinder 230, the lower ends of the swing rods 210 roll in the slide 120 through the roller 260, the sliding of the lower ends of the swing rods 210 is realized, the lower connecting rod 240 pulls the elastic buffer assembly 300 through the first hanging ring 270, and the impact force of the road surface is buffered through the elastic force of the elastic buffer assembly 300.

[0030] Please refer to Figures 1 to 5 , the elastic buffer assembly 300 includes a connecting pipe 310, a second hanging ring 320, a hook spring 330, an adjusting bolt 340, and an adjusting nut 350, the second hanging ring 320 is fixedly connected to the front side of the connecting pipe 310, one end of the hook spring 330 is hung to the second hanging ring 320, the other end of the hook spring 330 is hung to the lower end of the buffer swing frame assembly 200, the adjusting bolt 340 penetrates through the connecting pipe 310 and the transverse installation rod 130 in sequence, the adjusting nut 350 is threadedly sleeved on the adjusting bolt 340, and the adjusting nut 350 is pressed against the transverse installation rod 130. When the elastic force of the hook spring 330 is insufficient and the downward movement stroke of the road surface under the impact force is large, the adjusting nut 350 is rotated, the adjusting nut 350 drives the adjusting bolt 340 to move along the transverse installation rod 130 through the threaded transmission principle, the adjusting bolt 340 drives the connecting pipe 310, the connecting pipe 310 lengthens the hook spring 330 through the second hanging ring 320, the initial elastic force of the hook spring 330 is increased, the length of the hook spring 330 that is elongated again for buffering the impact force of the road surface is reduced, conversely, when the elastic force of the hook spring 330 is too large and the downward movement stroke of the road surface under the impact force is small, when the impact force of the road surface under the impact force is too large, the adjusting nut 350 is adjusted in the reverse direction, the initial elastic force of the hook spring 330 is reduced, the downward movement stroke of the road surface under the impact force is increased, the buffering effect is increased, and the impact force of the road surface guide frame assembly 400 under the impact force of the road surface is reduced.

[0031] Please refer toFigures 1 to 6 The road surface guiding frame assembly 400 comprises an outer arc-shaped connecting frame 410, an ear plate 420, a connecting seat 430, an arc-shaped mounting seat 440 and a guiding wheel 450. The ear plate 420 is fixedly connected to both sides of the lower end of the lower part of the outer arc-shaped connecting frame 410. The double-ear seat 170 is arranged on both sides of the rear end of the moving base frame 110. The ear plate 420 is rotatably connected to the double-ear seat 170. The connecting seat 430 is fixedly connected to both sides of the upper end of the lower part of the outer arc-shaped connecting frame 410. The buffer swing frame assembly 200 is rotatably connected to the connecting seat 430. The arc-shaped mounting seat 440 is fixedly connected to both sides of the upper part of the arc-shaped connecting frame 410. The guiding wheel 450 is rotatably arranged in the arc-shaped mounting seat 440 at intervals. The outer arc-shaped connecting frame 410 is rotatably connected through the ear plate 420 and the double-ear seat 170, so that the upper end of the outer arc-shaped connecting frame 410 swings downward. The buffer swing frame assembly 200 rotates around the connecting seat 430. The upper part of the outer arc-shaped connecting frame 410 is placed on the guiding wheel 450 of the arc-shaped mounting seat 440. The guiding wheel 450 guides the release of the road surface, so that the release of the road surface is continuous and smooth, and the situation that the road surface is caught by the road surface guiding frame assembly 400 is reduced. Even if a container is released on multiple road surfaces, the guiding wheel 450 of the arc-shaped mounting seat 440 can guide the release.

[0032] Specifically, the working principle of the road surface mechanical buffer device: in use, the mobile base frame 110 is transported to the front end of the container through the universal wheel 150, the threaded rod 164 is rotated through the rotating rod 166, the threaded rod 164 gradually exits the threaded sleeve 163 through the threaded transmission principle, the threaded rod 164 drives the top seat 165 to abut against the support surface, locking the position of the mobile base frame 110, the road surface is laid through the dragging method, when the road surface is separated from the container, the road surface falls under the action of gravity, the road surface collides with the guide wheel 450 of the arc-shaped mounting seat 440 with impact force, the guide wheel 450 guides the road surface to be released, making the release of the road surface continuous and smooth, reducing the situation that the road surface is hung by the road surface guide frame assembly 400, even if multiple road surfaces are released from the container, the guide wheel 450 of the arc-shaped mounting seat 440 can guide the release, under the action of the road surface gravity and impact force, the outer arc-shaped connecting frame 410 upper end swings downward through the rotation of the ear plate 420 and the double ear seat 170, the connecting cylinder 230 of the swing rod 210 rotates and is sleeved on the connecting seat 430, the swing rod 210 upper end swings downward with the outer arc-shaped connecting frame 410 upper end, the swing rod 210 lower end moves along the slide 120 through the roller 260, the lower connecting rod 240 pulls the hook spring 330 through the first hanging ring 270, the road surface gravity and impact force first overcome the initial elasticity of the hook spring 330, then the hook spring 330 is stretched, the elasticity of the hook spring 330 gradually increases, then the hook spring 330 is shortened and recovered, the elasticity of the hook spring 330 decreases, through the reciprocating stretching and recovery of the hook spring 330, the impact force of the road surface is buffered. If the elasticity of the hook spring 330 is insufficient, the roller 260 moves along the slide 120 with an excessive stroke, and when the road surface moves downward with a large stroke under the action of the impact force, the rotary adjusting nut 350 is rotated, the adjusting nut 350 drives the adjusting bolt 340 to move along the transverse mounting rod 130 through the threaded transmission principle, the adjusting bolt 340 drives the connecting pipe 310, the connecting pipe 310 stretches the hook spring 330 through the second hanging ring 320, the initial elasticity of the hook spring 330 increases, the length of the hook spring 330 that is stretched again for buffering the impact force of the road surface decreases, on the contrary, if the elasticity of the hook spring 330 is too large, and when the road surface moves downward with a small stroke under the action of the impact force, or when the impact force of the road surface against the road surface guide frame assembly 400 is too large under the action of the impact force, the adjusting nut 350 is adjusted in the opposite direction, the initial elasticity of the hook spring 330 is reduced, the downward movement stroke of the road surface under the action of the impact force is increased, the buffering effect is increased, and the impact force of the road surface against the road surface guide frame assembly 400 is reduced.Secondly, the elastic buffer assembly 300 is used for adjusting elastic damping, facilitating adjustment of the angle of the outer bow-shaped connecting frame 410 swinging downward, and controlling the stroke of the downward movement of the road surface.

[0033] It should be noted that the specific type and specification of the hook spring 330 need to be selected and determined according to the actual specification of the device, and the specific selection calculation method adopts the existing technology in the art, so it will not be described in detail.

[0034] The above is only an embodiment of the present application and is not used to limit the protection scope of the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application. It should be noted that: similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

Claims

1. A mechanical buffer device for road surfaces, characterized in that, include: Mobile base assembly (100); A buffer swing frame assembly (200) is slidably connected at its lower end to the front end of the movable base assembly (100). The movable base assembly (100) includes a movable base frame (110), a slide rail (120), and a transverse mounting rod (130). The slide rail (120) is located on both sides of the upper part of the front end of the movable base frame (110). An elastic buffer assembly (300) is disposed at the lower end of the buffer swing frame assembly (200) and inside the movable base assembly (100); A road guide frame assembly (400) is rotatably connected at its lower end to the rear end of the movable base assembly (100), and a buffer swing frame assembly (200) is rotatably connected at its upper end to the upper end of the road guide frame assembly (400). The lower end of the buffer swing frame assembly (200) is slidably connected to the slide rail (120), and the horizontal mounting rod (130) is fixedly connected to the horizontal part inside the movable base frame (110). The elastic buffer assembly (300) includes a connecting pipe (310), a second hanging ring (320), a hook spring (330), an adjusting bolt (340), and an adjusting nut (350). The second hanging ring (320) is fixedly connected to the front side of the connecting pipe (310), and one end of the hook spring (330) is hung... The second hanging ring (320) is attached to the second hook spring (330), and the other end of the hook spring (330) is attached to the lower end of the buffer swing frame assembly (200). The adjusting bolt (340) passes through the connecting pipe (310) and the transverse mounting rod (130) in sequence. The adjusting nut (350) is threaded onto the adjusting bolt (340). One end of the elastic buffer assembly (300) is connected to the transverse mounting rod (130), and the adjusting nut (350) is pressed against the transverse mounting rod (130).

2. The mechanical buffer device for road surfaces according to claim 1, characterized in that, The movable base assembly (100) also includes a reinforcing rod (140), casters (150), and a locking mechanism (160). The reinforcing rod (140) is connected between the horizontal mounting rod (130) and the movable base frame (110). The casters (150) are fixedly connected to the four corners inside the movable base frame (110). The locking mechanism (160) is located at the four corners of the lower part of the movable base frame (110).

3. The mechanical buffer device for road surfaces according to claim 2, characterized in that, The clamping and locking mechanism (160) includes a mounting plate (161), a reinforcing plate (162), a threaded sleeve (163), a threaded rod (164), a clamping seat (165), and a rotating rod (166). The reinforcing plate (162) is fixedly connected to the lower side of the mounting plate (161). The outer wall of the threaded sleeve (163) is fixedly connected to the lower end between the reinforcing plates (162). The upper end of the threaded rod (164) is threaded into the threaded sleeve (163). The clamping seat (165) is connected to the bottom end of the threaded rod (164). The rotating rod (166) is evenly connected to the periphery of the lower end of the threaded rod (164).

4. The mechanical buffer device for road surfaces according to claim 2, characterized in that, The buffer swing frame assembly (200) includes a swing rod (210), an upper connecting rod (220), a connecting cylinder (230), a lower connecting rod (240), a fixed shaft (250), a roller (260), and a first hanging ring (270). Two swing rods (210) are configured, with their upper ends connected by the upper connecting rod (220) and their lower ends connected by the lower connecting rod (240). The connecting cylinder (230) is fixedly inserted through the top of each swing rod (210). The top end of the swing arm (210) is rotatably connected to the road guide frame assembly (400) through the connecting cylinder (230). The fixed shaft (250) is fixedly connected to the outer side of the bottom end of the swing arm (210). The roller (260) is rotatably connected to the fixed shaft (250). The roller (260) rolls along the slide rail (120). The first hanging ring (270) is fixedly connected to the lower connecting rod (240). One end of the elastic buffer assembly (300) is attached to the first hanging ring (270).

5. The mechanical buffer device for road surfaces according to claim 2, characterized in that, The road guide frame assembly (400) includes an outer bow-shaped connecting frame (410), ear plates (420), connecting seats (430), bow-shaped mounting seats (440), and guide wheels (450). The ear plates (420) are fixedly connected to both sides of the lower part of the outer bow-shaped connecting frame (410). Double ear seats (170) are provided on both sides of the rear end of the movable base frame (110). The ear plates (420) are rotatably connected to the double ear seats (170). The connecting seats (430) are fixedly connected to both sides of the upper part of the lower part of the outer bow-shaped connecting frame (410). The upper end of the buffer swing frame assembly (200) is rotatably connected to the connecting seats (430). The bow-shaped mounting seats (440) are fixedly connected to both sides of the upper part of the bow-shaped connecting frame (410). The guide wheels (450) are rotatably connected to the bow-shaped mounting seats (440) at equal intervals.

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