JP6826263B1 - A device that automatically slices the road surface - Google Patents

Abstract

PROBLEM TO BE SOLVED: To disclose an apparatus for automatically slicing a road surface. SOLUTION: A first activity space is installed at the left end of the vehicle body including a vehicle body, a warning device is installed in the first activity space, and a third activity space is installed at the lower end of the first activity space. When the is installed and the invention of the present application starts to operate, a warning plate notifies the surrounding people of the road repair, the degree of slicing on the road surface can be controlled according to the needs, and water is used in the process of slicing. It cleans the roll in the flow, and at the same time, it has the function of cooling the roll and suppressing the dust from flying up, and has an environmentally friendly function. During the operation process, the stone caught on the upper blade of the roll by the wire mesh By removing it, the work can proceed stably, and by the action of the second roller, the transport belt is in a state of being pulled all the time, and the work can proceed normally. [Selection diagram] Fig. 1

Description

The present invention is related to the field of road maintenance technology, and specifically, is an apparatus that automatically slices a road surface.

The road surface is destroyed by various pressures, so maintenance work on the road surface must be emphasized. It is not the entire road surface that is destroyed, but only a part of it, so workers only have to slice a part of the road and lay sand or soil to flatten it, and the process of slicing In addition, the problem of dust rising is caused, and at the same time, the degree of slicing is different for road surfaces with different degrees of destruction.

Chinese Patent Application Publication No. 1039935552

In response to the above technical deficiency, the present invention discloses an apparatus that automatically slices a road surface.

The device that automatically slices the road surface according to the present invention includes a vehicle body, a first activity space is installed at the left end of the vehicle body, and a warning device is installed in the first activity space. A third active space is installed at the lower end of the first active space, and a hole communicating with the third active space is installed on the bottom wall of the first active space in front of the third active space. The wall and the rear wall are rotatably connected to the first rotating rod, the first roller and the gear are fixed to the first rotating rod, the chain is fixed to the first roller, and the trapezoidal shape is attached to the right end of the chain. The block is fixed , a trapezoidal groove is formed on the upper wall of the third active space, the upper end of the trapezoidal block and the trapezoidal groove are slidably connected, and a third active plate is formed at the lower end of the trapezoidal block. A second active groove is formed below the third active plate, and a second spring fixed to the third active plate is attached to the second active groove, and the third active plate is fixed. A fourth active plate is fixed to the right end of the fourth active plate, a fixed plate is slidably connected to the front and rear ends of the fourth active plate, and a second active space is installed at the right end of the fixed plate. A main motor is fixed to the upper wall of the space, a main transmission shaft is movably connected to the main transmission shaft, a first helical gear and a cam are fixed to the main transmission shaft, and the first is The second helical gear meshes with the helical gear, the first transmission shaft is fixed to the second helical gear, the left end of the first transmission shaft is rotatably connected to the vehicle body, and the second activity. A water tank is installed on the bottom wall of the space.

The warning device includes a rotary motor fixedly attached to the bottom wall of the first active space, a screw is ubiquitously connected to the rotary motor, and the upper end of the screw is attached to the upper wall of the first active space. A second active plate that is rotatably connected and slidably connected to the first active space is connected to the screw by a screw thread, and a warning plate is fixed to the upper end of the second active plate to warn the warning. The upper end of the plate penetrates the upper wall of the first active space, the rack is fixed to the lower end of the second active plate, and the rack penetrates the screw hole and meshes with the gear.

An empty space is installed inside the fixing plate, the first transmission shaft penetrates the empty space, and the front wall and the rear wall of the empty space are rotatably connected to a worm extending back and forth, and the worm The worm wheel meshes in the middle of the worm, the first pulley is fixed to the portion extending from the fixing plate at the front and rear ends of the worm, the first transmission shaft is fixed to the worm wheel, and the lower end of the fixing plate. A first slide groove is formed in the first slide groove, a second active groove is formed in the left and right end walls of the first slide groove, and a position limiting block is fixed to the front and rear end walls of the fixing plate.

The fourth active plate and the fixing plate are slidably connected by the first slide groove, a second active rod is fixed to the front and rear ends of the fourth active plate, and the second active rod is the second. It is slidably connected to the activity groove, a second empty space is installed at the lower end of the fourth activity plate, a wire mesh is fixed to the upper wall of the second empty space, and the front wall of the second empty space A third transmission shaft is rotatably connected to the rear wall, the third transmission shaft penetrates the front wall and the rear wall of the second empty space, and a second pulley is fixed to the third transmission shaft. The second pulley is connected to the first pulley by a transport belt, and a roll is fixed to the third transmission shaft in the second empty space.

A third connecting rod is fixed to the outside of the front wall and the outside of the rear wall of the fourth activity plate, the second connecting rod is rotatably connected to the third connecting rod, and the first is connected to the second connecting rod. The connecting rods are rotatably connected, the second roller is rotatably connected to the first connecting rod, and the second roller and the transport belt are slidably connected.

A water discharge pipe is fixed to the lower end of the water tank, the lower end of the water discharge pipe faces the roll, a water discharge valve is installed at the upper end of the water discharge pipe, and a second water discharge valve is installed at the upper end of the water discharge valve. The chain is fixed , a third roller is rotatably attached above the water tank, the second chain penetrates the upper wall of the water tank and is wound around the third roller, and is also wrapped around the second chain. The activity rod is fixed , the upper end of the activity rod comes into contact with the cam, the activity push rod is fixed to the right end of the activity rod, and the activity push rod is slidably connected to the right end wall of the activity space. A third active groove is formed, and a third spring fixed to the active push rod is fixedly attached to the right end wall of the third active groove.

A secondary rack meshes with the right end of the gear, a slide space is installed on the upper wall of the third active space, and a hydraulic space is installed on the bottom wall of the third active space. The front wall and the rear wall are rotatably connected to the second rotary rod, the third rotary rod is fixed to the second rotary rod, and the first position limiting groove is formed at the left end of the third rotary rod. A second position limiting groove is formed at the right end of the third rotating rod, the sub rack and the slide space are slidably connected, and the first position limiting rod is fixed to the lower end of the sub rack. The first position limiting rod and the first position limiting groove are slidably connected, a second piston plate is installed at the left end of the hydraulic space, and a second push rod is installed at the upper end of the second piston plate. It is fixed , the upper end of the second push rod penetrates the upper wall of the hydraulic space, and the second position limiting rod is fixed to the upper end of the second push rod, and the second position limiting rod and the second The position limiting groove is slidably connected, the first piston plate is installed at the right end of the hydraulic space, the first push rod is fixed to the upper end of the first piston plate, and the first push rod is fixed. The upper end of the hydraulic space penetrates the upper wall of the hydraulic space, and the third active plate is fixed to the upper end of the first push rod.

The present invention has a simple structure, is convenient to operate, and when it starts to operate, a warning plate notifies people around it that the road is being repaired, and the degree of slicing on the road surface can be controlled according to needs. In the process of doing, the roll is washed by the flow of water, and at the same time, it has the function of cooling the roll and suppressing the dust from flying up, and it has an environmentally friendly function. By removing the stones caught on the blade, the work can proceed stably, and by the action of the second roller, the transport belt is in a state of being pulled all the time, and the work can proceed normally.

In order to explain the present invention in detail with reference to FIGS. 1 to 3 below and to explain the present invention in a convenient manner, the following directions are defined as follows: FIG. 1 is a front view of the apparatus of the present invention and is described in the present application. Each direction is the direction when the device is viewed in the same direction as in FIG.

FIG. 1 is a schematic configuration diagram of the present invention. FIG. 2 is a left side view of the “A” part in FIG. FIG. 3 is an enlarged schematic view of the third rotating rod in FIG.

The device for automatically slicing a road surface according to the present invention includes a vehicle body 2, a first active space 54 is installed at the left end of the vehicle body 2, and the first active space 54 is contained. A warning device is installed, a third activity space 56 is installed at the lower end of the first activity space 54, and a through hole 9 communicating with the third activity space 56 is installed on the bottom wall of the first activity space 54. The front wall and the rear wall of the third active space 56 are rotatably connected to the first rotating rod 11, and the first roller 12 and the gear 25 are fixed to the first rotating rod 11, and the first roller A chain 30 is fixed to 12, a trapezoidal block 14 is fixed to the right end of the chain 30, a trapezoidal groove 13 is formed on the upper wall of the third active space 56, and the upper end of the trapezoidal block 14 and the trapezoidal shape. The groove 13 is slidably connected, the third active plate 15 is fixed to the lower end of the trapezoidal block 14, the second active groove 16 is formed below the third active plate 15, and the second active is formed. A second spring 17 fixed to the third active plate 15 is attached to the groove 16, and a fourth active plate 43 is fixed to the right end of the third active plate 15, and the fourth active plate 43 A fixing plate 50 is slidably connected to the front and rear ends, a second active space 55 is installed at the right end of the fixed plate 50, and a main motor 22 is fixed to the upper wall of the second active space 55. A main transmission shaft 23 is movably connected to the main motor 22, a first helical gear 21 and a cam 24 are fixed to the main transmission shaft 23, and a second helical gear 21 is fixed to the first helical gear 21. The helical gear 20 meshes, the first transmission shaft 19 is fixed to the second helical gear 20, the left end of the first transmission shaft 19 is rotatably connected to the vehicle body 2, and the second activity space 55. A water tank 29 is installed on the bottom wall of the.

Beneficially, the warning device includes a rotary motor 8 fixedly attached to the bottom wall of the first active space 54, the rotary motor 8 is mediated by a screw 7 and the upper end of the screw 7. Is rotatably connected to the upper wall of the first active space 54, and a second active plate 6 slidably connected to the first active space 54 is connected to the screw 7 by a screw thread. A warning plate 1 is fixed to the upper end of the activity plate 6, the upper end of the warning plate 1 penetrates the upper wall of the first activity space 54, and a rack 10 is fixed to the lower end of the second activity plate 6. The rack 10 penetrates the screw hole 9 and meshes with the gear 25.

To be beneficial, an empty space 31 is installed inside the fixed plate 50, the first transmission shaft 19 penetrates the empty space 31, and the front and rear walls of the empty space 31 are extended back and forth. The worm wheel 32 is rotatably connected to the worm 33, the worm wheel 32 meshes with the middle of the worm 33, and the first pulley 34 is fixed to a portion extending from the fixing plate 50 at the front and rear ends of the worm 33, and the worm wheel The first transmission shaft 19 is fixed to 32, a first slide groove 4 is formed at the lower end of the fixing plate 50, and a second active groove 42 is formed at the left and right end walls of the first slide groove 4. The position limiting block 38 is fixed to the front and rear end walls of the fixing plate 50.

To be beneficial, the fourth active plate 43 and the fixing plate 50 are slidably connected by the first slide groove 4, and the second active rod 40 is fixed to the front and rear ends of the fourth active plate 43. The second activity rod 40 is slidably connected to the second activity groove 42, a second empty space 49 is installed at the lower end of the fourth activity plate 43, and the second empty space 49 is provided on the upper wall of the second empty space 49. The wire mesh 44 is fixed , the third transmission shaft 46 is rotatably connected to the front wall and the rear wall of the second empty space 49, and the third transmission shaft 46 is connected to the front wall of the second empty space 49. A second pulley 47 is fixed to the third transmission shaft 46 through the rear wall, the second pulley 47 is connected to the first pulley 34 by a transport belt 35, and the first in the second empty space 49. A roll 45 is fixed to the three transmission shafts 46.

To be beneficial, a third connecting rod 41 is fixed to the outside of the front wall and the outside of the rear wall of the fourth activity plate 43, and the second connecting rod 39 is rotatably connected to the third connecting rod 41. The first connecting rod 37 is rotatably connected to the second connecting rod 39, the second roller 36 is rotatably connected to the first connecting rod 37, and the second roller 36 and the transport belt 35 are connected to each other. Are slidably connected.

To be beneficial, a water discharge pipe 18 is fixed to the lower end of the water tank 29, the lower end of the water discharge pipe 18 faces the roll 45, and a water discharge valve 51 is installed at the upper end of the water discharge pipe 18. A second chain 53 is fixed to the upper end of the water discharge valve 51, a third roller 52 is rotatably attached above the water tank 29, and the second chain 53 penetrates the upper wall of the water tank 29. The activity rod 26 is fixed to the second chain 53, the upper end of the activity rod 26 comes into contact with the cam 24, and the activity rod 26 is activated at the right end of the activity rod 26. The push rod 48 is fixed , a third active groove 28 slidably connected to the active push rod 48 is formed on the right end wall of the active space 55, and the activity is formed on the right end wall of the third active groove 28. The push rod 48 and the fixed third spring 27 are fixedly attached.

Beneficially, a secondary rack 61 meshes with the right end of the gear 25, a slide space 62 is installed on the upper wall of the third active space 56, and a hydraulic space is provided on the bottom wall of the third active space 56. 65 is installed, the front wall and the rear wall of the third active space 56 are rotatably connected to the second rotating rod 70, and the third rotating rod 73 is fixed to the second rotating rod 70, and the third A first position limiting groove 71 is formed at the left end of the rotary rod 73, a second position limiting groove 69 is formed at the right end of the third rotary rod 73, and the sub rack 61 and the slide space 62 can slide. The first position limiting rod 72 is fixed to the lower end of the sub rack 61, and the first position limiting rod 72 and the first position limiting groove 71 are slidably connected to the hydraulic space 65. A second piston plate 66 is installed at the left end of the second piston plate 66, a second push rod 67 is fixed to the upper end of the second piston plate 66, and the upper end of the second push rod 67 forms an upper wall of the hydraulic space 65. A second position limiting rod 68 is fixed to the upper end of the second push rod 67, and the second position limiting rod 68 and the second position limiting groove 69 are slidably connected to form the hydraulic space. A first piston plate 64 is installed at the right end of the 65, the first push rod 63 is fixed to the upper end of the first piston plate 64, and the upper end of the first push rod 63 is above the hydraulic space 65. The third active plate 15 is fixed to the upper end of the first push rod 63 so as to penetrate the wall.

In the initial state, when the warning plate 1 is located in the first active space 54 and starts to operate, the rotary motor 8 operates, the screw 7 rotates, and the second active plate 6 moves. The warning plate 1 is extended to exit the vehicle body 1 by the action of the screw 7, the rack 10 is moved upward by the action of the second activity plate 6, and the rack 10 is moved upward. The gear 25 is rotationally interlocked, the gear 25 moves and interlocks the sub-rack 61 downward, the sub-rack 61 rotates and interlocks the third rotary rod 73 with the first position limiting rod 72, and the third. The rotary rod 73 moves the second push rod 67 upward, the first push rod 63 moves downward, and the gear 25 rotates and interlocks the first roller 12 with the first rotary rod 11. The first roller 12 rotates and drives the chain 30 to contract, the chain 30 causes the activity block 14 to move in parallel to the left, and the third activity plate 15 causes the activity block 14 to move in parallel. And the first push rod 63 jointly moves downward, the third active plate 15 drives the fourth active plate 43 to move downward, and the fourth active plate 43 is said. The third transmission shaft 46 is driven to move downward, and the second pulley 47 moves downward to contract the transport belt 35, and the fourth active plate 43 becomes the third connecting rod 41. A downward movement is performed, the third connecting rod 41 rotates and interlocks the second connecting rod 40, and the second roller 36 rotates by the joint action of the transport belt 35 and the second connecting rod 40.

The main motor 22 operates to rotate and interlock the main transmission shaft 23, the main transmission shaft 23 rotates and interlocks the cam 24 and the first helical gear 21, the cam 24 rotates, and the activity. The rod 26 moves to the right, the activity rod 26 moves and interlocks the second chain 53 and the activity push rod 48, and the water discharge valve 51 is opened in conjunction with the second chain 53 to allow water to flow. It flows above the roll 48 through the water discharge pipe 18, the active push rod 48 moves to the left by the action of the third spring 28, and the active rod 26 reciprocates in the horizontal direction. The first helical gear 21 rotationally interlocks the second helical gear 20, the second helical gear 20 rotationally interlocks the first transmission shaft 19, and the first transmission shaft 19 rotates the worm. The wheel 32 is rotationally interlocked, the worm wheel 32 is rotationally interlocked with the first pulley 34 by the worm 33, the first pulley 34 is rotationally interlocked with the second pulley 47 by the conveyor belt 35, and the second is The pulley 47 is sliced on the ground by the third transmission shaft 46 rotating and interlocking the roll 45.

After the operation is completed, the rotary motor 8 reverses, the screw 7 reverses, and the second active plate 6 moves the warning plate 1 downward and interlocks the warning plate 1 to return to the first active space 54. The rack 10 moves downward by the action of the second activity plate 6, the rack 10 reverses the gear 25, the first roller 12 reverses, the chain 30 becomes loose, and the gear 25 becomes loose. The sub-rack 61 is moved and interlocked upward, the sub-rack 61 moves and interlocks the first position limiting rod 72 upward, the third rotating rod 73 rotates, and the second position limiting rod 68 is rotated and interlocked. The second position limiting rod 68 moves the second piston plate 66 downward by the second push rod 67, the first piston plate 64 moves upward, and the first push rod 63 moves upward. The third active plate 15 moves upward by the joint action of the first push rod 63 and the second spring 17, and the roll 45 moves upward.

The above-mentioned examples merely explain the technical concept and features of the present invention, and the purpose thereof is to allow a person skilled in the art to understand the contents of the present invention and further implement the invention, and the scope of protection of the present invention cannot be limited. .. All equivalent changes or modifications made on the basis of the spiritual substance of the present invention should be included within the scope of the present invention.

Claims (1)

A device that automatically slices a road surface on which a warning plate is installed on the left side when viewed from the front , including the vehicle body, and a first active space is installed at the left end of the vehicle body. A warning device is installed inside, a third activity space is installed at the lower end of the first activity space, and a hole communicating with the third activity space is installed on the bottom wall of the first activity space. , The front wall and the rear wall of the third active space are rotatably connected to the first rotating rod, the first roller and the gear are fixed to the first rotating rod, and the chain is fixed to the first roller. A trapezoidal block is fixed to the right end of the chain, a trapezoidal groove is formed on the upper wall of the third active space, and the upper end of the trapezoidal block and the trapezoidal groove are slidably connected to form the trapezoidal block. A third active plate is fixed to the lower end, a second active groove is formed below the third active plate, and a second spring fixed to the third active plate is formed in the second active groove. The fourth active plate is fixed to the right end of the third active plate, the fixing plate is slidably connected to the front and rear ends of the fourth active plate, and the second active space is fixed to the right end of the fixed plate. Is installed, the main motor is fixed to the upper wall of the second activity space, the main transmission shaft is movably connected to the main transmission shaft, and the first helical gear and cam are connected to the main transmission shaft. It is fixed , the second helical gear meshes with the first helical gear, the first transmission shaft is fixed to the second helical gear, and the left end of the first transmission shaft can rotate to the vehicle body. A water tank was installed on the bottom wall of the second activity space .
The warning device includes a rotary motor fixedly attached to the bottom wall of the first active space, a screw is ubiquitously connected to the rotary motor, and the upper end of the screw is attached to the upper wall of the first active space. A second active plate that is rotatably connected and slidably connected to the first active space is connected to the screw by a screw thread, and the warning plate is fixed to the upper end of the second active plate. The upper end of the warning plate penetrates the upper wall of the first active space, the rack is fixed to the lower end of the second active plate, and the rack penetrates the screw hole and meshes with the gear.
An empty space is installed inside the fixing plate, the first transmission shaft penetrates the empty space, and the front wall and the rear wall of the empty space are rotatably connected to a worm extending back and forth, and the worm The worm wheel meshes in the middle of the worm, the first pulley is fixed to the portion extending from the fixing plate at the front and rear ends of the worm, the first transmission shaft is fixed to the worm wheel, and the lower end of the fixing plate. A first slide groove is formed in, a second active groove is formed in the left and right end walls of the first slide groove, and a position limiting block is fixed to the front and rear end walls of the fixing plate .
The fourth active plate and the fixing plate are slidably connected by the first slide groove, a second active rod is fixed to the front and rear ends of the fourth active plate, and the second active rod is the second. It is slidably connected to the activity groove, a second empty space is installed at the lower end of the fourth activity plate, a wire mesh is fixed to the upper wall of the second empty space, and the front wall of the second empty space A third transmission shaft is rotatably connected to the rear wall, the third transmission shaft penetrates the front wall and the rear wall of the second empty space, and a second pulley is fixed to the third transmission shaft. The second pulley is connected to the first pulley by a transport belt, and a roll is fixed to the third transmission shaft in the second empty space .
A third connecting rod is fixed to the outside of the front wall and the outside of the rear wall of the fourth activity plate, the second connecting rod is rotatably connected to the third connecting rod, and the first is connected to the second connecting rod. The connecting rods are rotatably connected, the second roller is rotatably connected to the first connecting rod, and the second roller and the transport belt are slidably connected.
A water discharge pipe is fixed to the lower end of the water tank, the lower end of the water discharge pipe faces the roll, a water discharge valve is installed at the upper end of the water discharge pipe, and a second water discharge valve is installed at the upper end of the water discharge valve. The chain is fixed , a third roller is rotatably attached above the water tank, the second chain penetrates the upper wall of the water tank and is wound around the third roller, and is also wrapped around the second chain. The activity rod is fixed , the upper end of the activity rod comes into contact with the cam, the activity push rod is fixed to the right end of the activity rod, and the activity push rod is slidably connected to the right end wall of the activity space. A third active groove is formed, and a third spring fixed to the active push rod is fixedly attached to the right end wall of the third active groove .
A secondary rack meshes with the right end of the gear, a slide space is installed on the upper wall of the third active space, and a hydraulic space is installed on the bottom wall of the third active space. The front wall and the rear wall are rotatably connected to the second rotary rod, the third rotary rod is fixed to the second rotary rod, and the first position limiting groove is formed at the left end of the third rotary rod. A second position limiting groove is formed at the right end of the third rotating rod, the sub rack and the slide space are slidably connected, and the first position limiting rod is fixed to the lower end of the sub rack. The first position limiting rod and the first position limiting groove are slidably connected, a second piston plate is installed at the left end of the hydraulic space, and a second push rod is installed at the upper end of the second piston plate. It is fixed , the upper end of the second push rod penetrates the upper wall of the hydraulic space, and the second position limiting rod is fixed to the upper end of the second push rod, and the second position limiting rod and the second position limiting rod are fixed . The position limiting groove is slidably connected, the first piston plate is installed at the right end of the hydraulic space, the first push rod is fixed to the upper end of the first piston plate, and the first push rod is fixed. The upper end of the hydraulic space penetrates the upper wall of the hydraulic space, and the third active plate is fixed to the upper end of the first push rod .
When it starts to operate, the rotary motor operates, the screw rotates, the second activity plate moves upward by the action of the screw, the warning plate extends and leaves the vehicle body, and the rack The second activity plate moves upward, the rack rotates and interlocks the gear, the gear moves and interlocks the sub rack downward, and the sub rack moves by the first position limiting rod. The third rotary rod is rotationally interlocked, the third rotary rod moves the second push rod upward, the first push rod moves downward, and the gear is moved by the first rotary rod. The rollers are rotationally interlocked, the first roller is rotated to drive the chain to contract, the chain causes the activity block to move in parallel to the left, and the third activity plate is the activity block. And the first push rods jointly move downward, the third active plate drives the fourth active plate to move downward, and the fourth active plate moves the third transmission shaft downward. The second pulley moves downward to contract the conveyor belt, and the fourth active plate causes the third connecting rod to move downward. The third connecting rod rotates and interlocks the second connecting rod, and the second roller rotates by the joint action of the transport belt and the second connecting rod.
The main motor operates to rotate and interlock the main transmission shaft, the main transmission shaft rotates and interlocks the cam and the first helical gear, the cam rotates, and the activity rod moves to the right. Then, the activity rod moves and interlocks the second chain and the activity push rod, the water discharge valve is opened in conjunction with the second chain, and water flows above the roll via the water discharge pipe. Flow, the active push rod moves to the left by the action of the third spring, the active rod reciprocates in the horizontal direction, and the first helical gear rotates the second helical gear. The second helical gear rotates and interlocks the first transmission shaft, the first transmission shaft rotates and interlocks the worm wheel, and the worm wheel rotates and interlocks the first pulley by the worm. The first pulley rotationally interlocks the second pulley with the transport belt, and the second pulley slices the ground by rotating the roll with the third transmission shaft.
After finishing the operation, the rotary motor reverses, the screw reverses, the second active plate moves the warning plate downward and interlocks the warning plate to return to the first active space, and the rack moves the rack. The action of the second activity plate moves downward, the rack reverses the gear, the first roller reverses, the chain becomes loose, and the gear moves the secondary rack upward and interlocks with the secondary. The rack moves and interlocks the first position limiting rod upward, the third rotating rod rotates and the second position limiting rod is rotationally interlocked, and the second position limiting rod is moved and interlocked by the second push rod. The two piston plates are moved downward and interlocked, the first piston plate moves upward, the first push rod moves upward, and the third activity is performed by the joint action of the first push rod and the second spring. A device that automatically slices a road surface, characterized in that a plate moves upward and the roll moves upward .

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