Mechanical buffering device for road surface
By designing an external mechanical buffer device for pavement, including a mobile base assembly, a buffer swing frame assembly, an elastic buffer assembly and a pavement guide frame assembly, the problem of difficulty in adjusting spring elastic damping and limited device use in the prior art is solved, and the effect of effectively buffering the impact force of the road surface and adapting to the release of different pavements is achieved.
Patent Information
- Application Number
- CN202411979586.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-04-08
AI Technical Summary
When used by existing mechanical buffer devices for road surfaces, the spring resistance of the spring is difficult to adjust, and the device can only be mounted on the container end of the folded road surface at the front end, and the use is limited.
An external mechanical buffer device for pavement is designed, including a mobile base assembly, a buffer swing frame assembly, an elastic buffer assembly and a pavement guide frame assembly. Through the combination of these components, the easy transfer and adjustment of the device to buffer elastic damping is achieved.
This device can effectively buffer the impact force of the road surface, and by adjusting the elastic force of the elastic buffer assembly, it can adapt to the release of different road surfaces, ensuring that the release of the road surface is continuous and smooth.
Smart Images
Figure CN119777235A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of road slab buffering, and in particular to a mechanical buffering device for a road surface. Background Art
[0002] When paving the foldable pavement, the pavement needs to be separated from the container and unfolded. However, the unfolded pavement falls under the action of gravity and is easy to hit the container or the ground. In addition, collisions may also occur between the foldable pavements. During the collision, on the one hand, it is easy to cause damage to the pavement or the container. On the other hand, the collision sound is also relatively loud, which is easy to cause discomfort to people. It is necessary to use a corresponding buffer structure to mitigate the impact caused by the pavement.
[0003] In the related art, when the mechanical road surface buffer device is in use, the spring is directly arranged between the guide wheel and the support rod, and the elastic damping provided by the spring is not convenient to adjust. In addition, the mechanical road surface buffer device is directly mounted on the end of the folding road surface container, and only the first end folding road surface container can play the role of buffering the road surface, which limits its use. Summary of the invention
[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a mechanical buffer device for a road surface, which is external, convenient for multiple devices to rotate, highly practical, and has the effect of facilitating the release of the road surface, and also has the effect of adjusting the buffer elastic damping.
[0005] According to the embodiment of the present application, the mechanical buffer device for road surface includes: a movable 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 at the lower end of the buffer swing frame assembly and inside the mobile base assembly, the lower end of the road 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 guide frame assembly.
[0007] According to some embodiments of the present application, the mobile base assembly includes a mobile base frame, a slide, a transverse mounting rod, a reinforcement rod, a universal wheel and a tightening locking mechanism, the slide is arranged on both sides of the upper front end of the mobile base frame, the lower end of the buffer swing frame assembly is slidably connected to the slide, the transverse mounting rod is fixedly connected to the transverse direction inside the mobile base frame, one end of the elastic buffer assembly is connected to the transverse mounting rod, the reinforcement rod is connected between the transverse mounting rod and the mobile base frame, the universal wheel is fixedly connected to the four corners inside the mobile base frame, and the tightening locking mechanism is arranged at the four corners of the lower part of the mobile base frame.
[0008] According to some embodiments of the present application, the tightening and locking mechanism includes a mounting plate, a reinforcement plate, a threaded sleeve, a threaded rod, a tightening seat and a rotating rod, the reinforcement plate is fixedly connected to the four sides of the lower side of the mounting plate, the outer wall of the threaded sleeve is fixedly connected to the lower end between the reinforcement plates, the upper end of the threaded rod is threadedly inserted into the threaded sleeve, the tightening seat is connected to the bottom end of the threaded rod, and the rotating rod is evenly connected to the periphery of the lower end of the threaded rod.
[0009] According to some embodiments of the present application, the buffer swing frame assembly includes a rocker arm, an upper connecting rod, a connecting tube, a lower connecting rod, a fixed shaft, a roller and a first hanging ring. The rocker arm is provided with two, the upper ends of the two rocker arms are connected by the upper connecting rod, the lower ends of the two rocker arms are connected by the lower connecting rod, the connecting tube is fixedly passed through the top end of the rocker arm, the top end of the rocker arm is rotatably connected to the road guide frame assembly through the connecting tube, the fixed shaft is fixedly connected to the outer side of the bottom end of the rocker arm, the roller is rotatably connected to the fixed shaft, the roller rolls along the slide, the first hanging ring is fixedly connected to the lower connecting rod, and one end of the elastic buffer assembly is hung on the first hanging ring.
[0010] According to some embodiments of the present application, the elastic buffer assembly includes a connecting tube, a second hanging ring, a hook spring, an adjusting bolt and an adjusting nut. The second hanging ring is fixedly connected to the front side of the connecting tube, one end of the hook spring is hung on the second hanging ring, and the other end of the hook spring is hung on the lower end of the buffer swing frame assembly. The adjusting bolt passes through the connecting tube and the transverse mounting rod in sequence, and the adjusting nut is threadedly sleeved on the adjusting bolt, and the adjusting nut is pressed against the transverse mounting rod.
[0011] According to some embodiments of the present application, the road guide frame assembly includes an outer bow-shaped connecting frame, an ear plate, a connecting seat, a bow-shaped mounting seat and a guide wheel, the ear plate is fixedly connected to both sides of the lower end of the lower part of the outer bow-shaped connecting frame, and double-ear seats are provided on both sides of the rear end of the movable base frame, the ear plate is rotatably connected to the double-ear seats, and the connecting seat is respectively fixedly connected to both sides of the upper end of the lower part of the outer bow-shaped connecting frame, the upper end of the buffer swing frame assembly is rotatably connected to the connecting seat, the bow-shaped mounting seat is fixedly connected to both sides of the upper part of the bow-shaped connecting frame, and the guide wheel is rotatably connected to the bow-shaped mounting seat at equal intervals.
[0012] The beneficial effects of the present application are as follows: by moving the base assembly, the mechanical buffer device for the road surface is moved to the container at the head end. When the road surface is separated from the container, the road surface falls under the action of gravity, and the road surface hits the road surface guide frame assembly with impact force. Under the action of the road surface gravity and impact force, the upper end of the road surface guide frame assembly swings downward, the upper end of the buffer swing frame assembly swings downward with the road surface guide frame assembly, the lower end of the buffer swing frame assembly slides along the front end of the moving base assembly, the lower end of the buffer swing frame assembly pulls the elastic buffer assembly to extend, the elastic force of the elastic buffer assembly gradually increases, and then the elastic buffer assembly is recovered, the elastic force of the elastic buffer assembly decreases, and the impact force of the road surface is buffered by the reciprocating extension and recovery of the elastic buffer assembly. First, the mechanical buffer device for the road surface is externally mounted and easy to transfer, and has strong practicality; second, by adjusting the elastic damping through the elastic buffer assembly, it is convenient to adjust the downward swing angle of the road surface guide frame assembly and control the downward movement stroke of the road surface; third, the road surface guide frame assembly guides the release of the road surface, so that the release of the road surface is continuous and smooth, and even if there are multiple sections of road surface to release the container, the release can be guided by the road surface guide frame assembly.
[0013] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.
[0015] Figure 1 is a schematic diagram of the three-dimensional structure of a mechanical buffer device for a road surface according to an embodiment of the present application; Figure 2 is a schematic diagram of the three-dimensional structure of a mobile base assembly according to an embodiment of the present application; Figure 3 is a schematic diagram of the three-dimensional structure of the tightening and locking mechanism according to an embodiment of the present application; Figure 4 is a schematic diagram of the three-dimensional structure of a buffer swing frame assembly according to an embodiment of the present application; Figure 5 is a schematic diagram of the three-dimensional structure of an elastic buffer assembly according to an embodiment of the present application; Figure 6 It is a schematic diagram of the three-dimensional structure of the road guide frame assembly according to an embodiment of the present application.
[0016] Icons: 100-mobile base assembly; 110-mobile base frame; 120-slideway; 130-lateral mounting rod; 140-reinforcement rod; 150-universal wheel; 160-tightening locking mechanism; 161-mounting plate; 162-reinforcement plate; 163-threaded sleeve; 164-threaded rod; 165-tightening seat; 166-rotating rod; 170-double-ear seat; 200-buffered swing frame assembly; 210-swing rod; 220-upper connecting rod ; 230-connecting tube; 240-lower connecting rod; 250-fixed shaft; 260-roller; 270-first hanging ring; 300-elastic buffer assembly; 310-connecting tube; 320-second hanging ring; 330-hook spring; 340-adjusting bolt; 350-adjusting nut; 400-road guide frame assembly; 410-external bow-shaped connecting frame; 420-ear plate; 430-connecting seat; 440-bow-shaped mounting seat; 450-guide wheel. DETAILED DESCRIPTION
[0017] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.
[0018] In order to make the purpose, technical solutions and advantages of the implementation methods of this application clearer, the technical solutions in the implementation methods of this application will be clearly and completely described below in conjunction with the drawings in the implementation methods of this application. Obviously, the described implementation methods are part of the implementation methods of this application, not all of the implementation methods. Based on the implementation methods in this application, all other implementation methods obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.
[0019] The following describes a mechanical buffer device for a road surface according to an embodiment of the present application with reference to the accompanying drawings.
[0020] See also Figures 1 to 6 According to the embodiment of the present application, the mechanical buffer device for road surface includes: a movable base assembly 100, a buffer swing frame assembly 200, an elastic buffer assembly 300 and a road surface guide frame assembly 400.
[0021] See also Figure 1The lower end of the buffer swing frame assembly 200 is slidably connected to the front end of the mobile base assembly 100, the elastic buffer assembly 300 is arranged at the lower end of the buffer swing frame assembly 200 and inside the mobile base assembly 100, the lower end of the road guide frame assembly 400 is rotatably connected to the rear end of the mobile base assembly 100, and the upper end of the buffer swing frame assembly 200 is rotatably connected to the upper end of the road guide frame assembly 400. By moving the base assembly 100, the road surface is moved to the front end of the container at the head end by a mechanical buffer device. When the road surface is separated from the container, the road surface falls under the action of gravity, and the road surface hits the road surface guide frame assembly 400 with an impact force. Under the action of the road surface gravity and the impact force, the upper end of the road surface guide frame assembly 400 swings downward, and the upper end of the buffer swing frame assembly 200 swings downward with the road surface guide frame assembly 400. The lower end of the buffer swing frame assembly 200 slides along the front end of the moving base assembly 100, and the lower end of the buffer swing frame assembly 200 pulls the elastic buffer assembly 300 to extend, and the elastic force of the elastic buffer assembly 300 gradually increases, and then the elastic buffer assembly 300 is recovered, and the elastic force of the elastic buffer assembly 300 is reduced. The impact force of the road surface is buffered by the reciprocating extension and recovery of the elastic buffer assembly 300. First, the mechanical buffer device for the road surface is external and easy to transfer, and has strong practicality; second, the elastic damping is adjusted by the elastic buffer component 300, so as to adjust the downward swing angle of the road surface guide frame component 400 and control the downward movement stroke of the road surface; third, the road surface guide frame component 400 guides the release of the road surface, so that the release of the road surface is continuous and smooth. Even if there are multiple sections of road surface to release the container, the road surface guide frame component 400 can guide the release.
[0022] See also Figure 1 to Figure 2 The mobile base assembly 100 includes a mobile base frame 110, a slide 120, a transverse mounting rod 130, a reinforcing rod 140, a universal wheel 150 and a tightening locking mechanism 160. The slide 120 is arranged on both sides of the upper front end of the mobile base frame 110. The lower end of the buffer swing frame assembly 200 is slidably connected to 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 tightening locking mechanism 160 is arranged at the four corners of the lower part of the mobile base frame 110. The movable base frame 110 is transported by the universal wheels 150 . After the movable base frame 110 moves to a designated position, the position is locked by the tightening locking mechanism 160 . The transverse mounting rods 130 and the reinforcing rods 140 jointly strengthen the strength of the movable base frame 110 .
[0023] See also Figures 1 to 3The tightening and locking mechanism 160 includes a mounting plate 161, a reinforcing plate 162, a threaded sleeve 163, a threaded rod 164, a tightening seat 165 and a rotating rod 166. The reinforcing plate 162 is fixedly connected to the four sides 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 tightening 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 tightening and locking mechanism 160 is used to lock the position, the threaded rod 164 is driven to rotate by the rotating rod 166. Through the principle of thread transmission, the threaded rod 164 gradually withdraws from the threaded sleeve 163, and the threaded rod 164 drives the tightening seat 165 to press against the supporting surface, thereby locking the position of the mobile base frame 110.
[0024] See also Figures 1 to 4 The buffer swing frame assembly 200 includes a swing rod 210, an upper connecting rod 220, a connecting tube 230, a lower connecting rod 240, a fixed shaft 250, a roller 260 and a first hanging ring 270. The swing rod 210 is set to two, the upper ends of the two swing rods 210 are connected by the upper connecting rod 220, and the lower ends of the two swing rods 210 are connected by the lower connecting rod 240. The connecting tube 230 is fixedly passed through the top of the swing rod 210, and the top of the swing rod 210 is rotatably connected to the road guide frame assembly 400 through the connecting tube 230. The fixed shaft 250 is fixedly connected to the outer side of the bottom end of the swing rod 210, and the roller 260 is rotatably connected to the fixed shaft 250. The roller 260 rolls along the slide 120, and the first hanging ring 270 is fixedly connected to the lower connecting rod 240. One end of the elastic buffer assembly 300 is hung on the first hanging ring 270. The swing arm 210, the upper connecting rod 220 and the lower connecting rod 240 form a rectangular main frame. The swing arm 210 swings downward with the road guide frame assembly 400, and the swing arm 210 rotates around the connecting tube 230. The lower end of the swing arm 210 rolls along the slide 120 through the roller 260 to achieve sliding of the lower end of the swing arm 210. The lower connecting rod 240 pulls the elastic buffer assembly 300 through the first hanging ring 270, and the elastic force of the elastic buffer assembly 300 buffers the impact force of the road surface.
[0025] See also Figures 1 to 5The elastic buffer assembly 300 includes a connecting tube 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 tube 310, one end of the hook spring 330 is hung on the second hanging ring 320, and the other end of the hook spring 330 is hung on the lower end of the buffer swing frame assembly 200. The adjusting bolt 340 passes through the connecting tube 310 and the transverse mounting rod 130 in sequence, and the adjusting nut 350 is threadedly sleeved on the adjusting bolt 340, and the adjusting nut 350 is pressed against the transverse mounting rod 130. The elastic force of the hook spring 330 is insufficient, resulting in the roller 260 moving too far along the slide 120. When the road surface moves downwardly for a large distance under the impact force, the 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 tube 310. The connecting tube 310 stretches the hook spring 330 through the second hanging ring 320. The initial elastic force of the hook spring 330 is increased, and the length of the hook spring 330 that is stretched again to buffer the impact force of the road surface is reduced. On the contrary, if the elastic force of the hook spring 330 is too large, and the road surface moves downward for a small distance under the impact force, and the impact force between the road surface and the road surface guide frame assembly 400 under the impact force is too large, the adjusting nut 350 is adjusted in the reverse direction to reduce the initial elastic force of the hook spring 330, increase the downward movement distance of the road surface under the impact force, increase the buffering effect, and reduce the impact force between the road surface and the road surface guide frame assembly 400 under the impact force.
[0026] See also Figures 1 to 6 The road guide frame assembly 400 includes an outer arched connecting frame 410, an ear plate 420, a connecting seat 430, an arched mounting seat 440 and a guide wheel 450. The ear plate 420 is fixedly connected to both sides of the lower end of the lower part of the outer arched connecting frame 410. Double ear seats 170 are arranged on both sides of the rear end of the movable base frame 110. The ear plate 420 is rotatably connected to the double ear seats 170. The connecting seat 430 is respectively fixedly connected to both sides of the upper end of the lower part of the outer arched connecting frame 410. The upper end of the buffer swing frame assembly 200 is rotatably connected to the connecting seat 430. The arched mounting seat 440 is fixedly connected to both sides of the upper part of the arched connecting frame 410. The guide wheel 450 is rotatably connected to the arched mounting seat 440 at equal intervals. The outer arch connecting frame 410 is rotatably connected with the double ear seat 170 through the ear plate 420, so that the upper end of the outer arch connecting frame 410 swings downward, and the buffer swing frame assembly 200 rotates around the connecting seat 430. The road surface on the upper part of the outer arch connecting frame 410 falls on the guide wheel 450 of the arch mounting seat 440. The road surface is released by guiding the guide wheel 450, so that the release of the road surface is continuous and smooth, and the situation of the road surface being hung by the road surface guide frame assembly 400 is reduced. Even if there are multiple sections of road surface to release the container, it can be guided by the guide wheel 450 of the arch mounting seat 440.
[0027] Specifically, the working principle of the mechanical buffer device for pavement is as follows: when in use, the mobile base frame 110 is transferred to the front end of the container at the head end through the universal wheel 150, and the threaded rod 164 is driven to rotate by the rotating rod 166. Through the principle of thread transmission, the threaded rod 164 gradually withdraws from the threaded sleeve 163, and the threaded rod 164 drives the tightening seat 165 to press against the supporting surface, locking the position of the mobile base frame 110, and the pavement is paved by dragging. When the pavement is separated from the container, the pavement falls under the action of gravity, and the pavement hits the guide wheel 450 of the bow-shaped mounting seat 440 with impact force. The pavement is released by guiding the guide wheel 450, so that the release of the pavement is continuous and smooth, reducing the occurrence of the pavement being hung by the pavement guide frame assembly 400. Even if there are multiple sections of pavement to release the container, the bow-shaped mounting seat can also be used. The guide wheel 450 of the mounting seat 440 guides the release. Under the action of the gravity and impact force of the road surface, the upper end of the outer arched connecting frame 410 is swung downward by the rotation of the ear plate 420 and the double-ear seat 170. The connecting tube 230 of the swing arm 210 is rotated and sleeved on the connecting seat 430. The upper end of the swing arm 210 swings downward with the upper end of the outer arched connecting frame 410. The lower end of the swing arm 210 moves along the slideway 120 through the roller 260. The lower connecting rod 240 pulls the hook spring 330 through the first hanging ring 270. The gravity and impact force of the road surface first overcome the initial elastic force of the hook spring 330. Then the hook spring 330 is extended, and the elastic force of the hook spring 330 gradually increases. Subsequently, the hook spring 330 is shortened and retracted, and the elastic force of the hook spring 330 is reduced. The reciprocating extension and recovery of the hook spring 330 can buffer the impact force of the road surface. The elastic force of the hook spring 330 is insufficient, resulting in the roller 260 moving too far along the slide 120. When the road surface moves downwardly for a large distance under the impact force, the 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 tube 310. The connecting tube 310 stretches the hook spring 330 through the second hanging ring 320. The initial elastic force of the hook spring 330 is increased, and the length of the hook spring 330 that is stretched again to buffer the impact force of the road surface is reduced. On the contrary, if the elastic force of the hook spring 330 is too large, and the road surface moves downward for a small distance under the impact force, and the impact force between the road surface and the road surface guide frame assembly 400 under the impact force is too large, the adjusting nut 350 is adjusted in the reverse direction to reduce the initial elastic force of the hook spring 330, increase the downward movement distance of the road surface under the impact force, increase the buffering effect, and reduce the impact force between the road surface and the road surface guide frame assembly 400 under the impact force. First, the mechanical buffer device for the road surface is external, which is easy to transfer and has strong practicality. Second, the release of the road surface is guided by the guide wheel 450 of the bow-shaped mounting seat 440, so that the release of the road surface is continuous and smooth. Even if there are multiple sections of road surface to release the container, the guide wheel 450 of the bow-shaped mounting seat 440 can also guide the release.Secondly, by adjusting the elastic damping through the elastic buffer assembly 300, it is convenient to adjust the downward swing angle of the outer bow-shaped connecting frame 410 and control the downward movement stroke of the road surface.
[0028] It should be noted that the specific model and specifications of the hook spring 330 need to be selected and determined based on the actual specifications of the device, and the specific selection and calculation method adopts the existing technology in this field, so it will not be repeated in detail.
[0029] The above are only embodiments of the present application and are not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection 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 the subsequent drawings.
Claims
1. A mechanical buffer device for a road surface, characterized in that: include: Mobile base assembly (100); A buffer swing frame assembly (200), wherein the lower end of the buffer swing frame assembly (200) is slidably connected to the front end of the movable base assembly (100); An elastic buffer component (300), the elastic buffer component (300) being arranged at the lower end of the buffer swing frame component (200) and inside the movable base component (100); A road surface guide frame assembly (400), wherein the lower end of the road surface guide frame assembly (400) is rotatably connected to the rear end of the movable base assembly (100), and the upper end of the buffer swing frame assembly (200) is rotatably connected to the upper end of the road surface guide frame assembly (400).
2. The mechanical buffer device for road surface according to claim 1, characterized in that: The movable base assembly (100) comprises a movable base frame (110), a slideway (120), a transverse mounting rod (130), a reinforcing rod (140), a universal wheel (150) and a tightening locking mechanism (160). The slideway (120) is arranged on both sides of the upper front end of the movable base frame (110). The lower end of the buffer swing frame assembly (200) is slidably connected to the slideway (120). The transverse mounting rod (130) is fixedly connected to the transverse direction inside the movable 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 movable base frame (110). The universal wheel (150) is fixedly connected to the four corners inside the movable base frame (110). The tightening locking mechanism (160) is arranged at the four corners of the lower part of the movable base frame (110).
3. The mechanical buffer device for road surface according to claim 2, characterized in that: The tightening and locking mechanism (160) comprises a mounting plate (161), a reinforcing plate (162), a threaded sleeve (163), a threaded rod (164), a tightening seat (165) and a rotating rod (166); the reinforcing plate (162) is fixedly connected to the four sides 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 tightening seat (165) is connected to the bottom end of the threaded rod (164); and the rotating rod (166) is evenly spaced and connected to the periphery of the lower end of the threaded rod (164).
4. The mechanical buffer device for road surface according to claim 2, characterized in that: The buffer swing frame assembly (200) comprises a swing rod (210), an upper connecting rod (220), a connecting tube (230), a lower connecting rod (240), a fixed shaft (250), a roller (260) and a first hanging ring (270); the swing rod (210) is provided in two pieces, the upper ends of the two swing rods (210) are connected by the upper connecting rod (220), the lower ends of the two swing rods (210) are connected by the lower connecting rod (240), and the connecting tube (230) is fixedly passed through the top end of the swing rod (210). The top end of the swing rod (210) is rotatably connected to the road guide frame assembly (400) via the connecting tube (230); the fixed shaft (250) is fixedly connected to the outer side of the bottom end of the swing rod (210); the roller (260) is rotatably connected to the fixed shaft (250); the roller (260) rolls along the slideway (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 on the first hanging ring (270).
5. The mechanical buffer device for road surface according to claim 2, characterized in that: The elastic buffer assembly (300) comprises a connecting tube (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 tube (310); one end of the hook spring (330) is hung on the second hanging ring (320); the other end of the hook spring (330) is hung on the lower end of the buffer swing frame assembly (200); the adjusting bolt (340) passes through the connecting tube (310) and the transverse mounting 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 mounting rod (130).
6. The mechanical buffer device for road surface according to claim 2, characterized in that: The road guide frame assembly (400) comprises an outer arched connecting frame (410), an ear plate (420), a connecting seat (430), an arched mounting seat (440) and a guide wheel (450). The ear plate (420) is fixedly connected to both sides of the lower end of the lower part of the outer arched connecting frame (410). Two ear seats (170) are arranged on both sides of the rear end of the movable base frame (110). The ear plate (420) is rotatably connected to the two ear seats (170). The connecting seat (430) is respectively fixedly connected to both sides of the upper end of the lower part of the outer arched connecting frame (410). The upper end of the buffer swing frame assembly (200) is rotatably connected to the connecting seat (430). The arched mounting seat (440) is fixedly connected to both sides of the upper part of the arched connecting frame (410). The guide wheel (450) is rotatably connected to the inside of the arched mounting seat (440) at equal intervals.