Concrete vibrating and film covering device

Abstract

This invention belongs to the field of concrete coating technology and discloses a concrete vibratory coating device, including a vehicle body. An assembly frame is fixedly connected to one side of the vehicle body. An assembly box is movably mounted at the end of the assembly frame. A vibratory coating mechanism, a film roll support mechanism, and an installation control mechanism are sequentially fixedly mounted at the bottom of the assembly box. A composite drive assembly is provided inside the assembly box. This invention generates a stable airflow during operation through the composite drive assembly. After being guided into the composite processing head via a switching mechanism and an exhaust control assembly, it forms a symmetrical and inclined blowing airflow on both sides. When the film is released, it blows along the center of the film to both sides, which not only fully unfolds the film but also expels air from the center during the coating process, ensuring the film adheres evenly and tightly to the concrete surface. This avoids wrinkles, bulges, or local cavities common in traditional coating methods, thus significantly improving the flatness and density of the coating.

Description

Technical Field

[0001] This invention belongs to the field of concrete coating technology, specifically a concrete vibration leveling and coating device. Background Technology

[0002] During concrete construction, the surface of the concrete often has undulations and air bubbles after pouring. If vibration and leveling are not carried out in time, it will affect the density and overall strength of the concrete surface, thereby reducing the service life and durability of the building structure. At the same time, in order to prevent the concrete surface from evaporating too quickly, cracking and reducing strength, it is usually necessary to cover the surface with a thin film to maintain the concrete humidity and curing environment.

[0003] Existing concrete vibratory leveling and coating equipment still has many shortcomings in practical applications. Because the membrane often cannot be fully unfolded and internal air not expelled in time during installation, problems such as bulges, hollow areas, and unevenness in the coating layer easily occur, affecting the tight adhesion between the membrane and the concrete surface and thus reducing the protective effect of the coating. Furthermore, membrane cutting during construction largely relies on manual operation, which is inefficient and poses safety hazards. Additionally, the membrane ends are prone to retraction or tangling, requiring manual reprocessing in subsequent construction, making continuous and stable operation difficult. These problems not only increase the labor intensity of construction workers but also limit the widespread application of existing equipment in the field of concrete vibratory leveling and coating. Summary of the Invention

[0004] The purpose of this invention is to provide a concrete vibratory leveling and film covering device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a concrete vibratory leveling and film covering device, comprising a vehicle body, an assembly frame fixedly connected to one side of the vehicle body, an assembly box movably mounted at the end of the assembly frame, a vibratory leveling mechanism, a film rolling support mechanism, and an installation control mechanism sequentially fixedly mounted at the bottom of the assembly box, a composite drive assembly provided inside the assembly box, a connected composite processing head movably sleeved at the bottom of the installation control mechanism, and an exhaust control assembly and a switching mechanism provided outside the installation control mechanism;

[0006] The composite drive component is connected to the conduction switching mechanism and sends the airflow into the intake and exhaust control component through the conduction switching mechanism. The composite drive component controls the reciprocating vibration of the vibration leveling mechanism.

[0007] The intake and exhaust control assembly is used, on the one hand, to further introduce airflow into the composite processing head and blow the airflow outward, and on the other hand, to draw external air into the installation and control mechanism through the composite processing head.

[0008] Preferably, the bottom of the vehicle body is provided with a drive wheel, the bottom of the assembly frame is provided with a support wheel, the end of the assembly frame is fixedly provided with a lifting assembly mechanism, and the side of the assembly box is fixedly installed with an assembly block, which is installed in the lifting assembly mechanism.

[0009] Preferably, the lifting assembly mechanism includes a mounting frame and a threaded shaft. The mounting frame is fixed in the assembly frame, and the threaded shaft is rotatably mounted in the mounting frame via a bearing. The assembly block is threaded onto the outer surface of the threaded shaft, and the outer side of the assembly block is provided with a protrusion. The protrusion of the assembly block is slidably sleeved on the inner wall of the assembly frame.

[0010] Preferably, the composite drive assembly includes a drive motor, a rotating shaft, a cam, a fan blade, and a fan duct. The rotating shaft is fixedly connected to the output shaft of the drive motor. One end of the rotating shaft passes through the assembly box and extends into the interior of the assembly box. The cam and the fan blade are both fixedly sleeved on the outer surface of the rotating shaft. The fan duct is fixed inside the assembly box and located outside the fan blade. An intake hole is provided on the outer side of the assembly box, and the intake hole communicates with the fan duct.

[0011] Preferably, the leveling mechanism includes a leveling baffle, a top frame, a first spring, a connecting rod, and a crossbar. The top frame is fixed to the bottom of the assembly box via a connecting rod at the top. The upper end of the leveling baffle is movably sleeved on the top frame. One end of the first spring is fixed to the top of the leveling baffle, and the other end is fixed to the top frame. One end of the connecting rod is fixed to the top of the leveling baffle, and the other end of the connecting rod movably passes through the top frame and extends into the interior of the assembly box. The crossbar is fixedly connected to the top of the connecting rod and located at the bottom of the cam.

[0012] Preferably, the installation control mechanism includes an installation sleeve, a connecting frame, and an electric push rod. The connecting frame is fixedly connected to the top of the installation sleeve, and the top of the connecting frame is fixedly connected to the assembly box. The electric push rod is fixed on the connecting frame, and the free end of the electric push rod passes through the top of the installation sleeve and is fixedly connected to the composite processing head inside the installation sleeve.

[0013] Preferably, the composite processing head includes a movable plate, a cut surface, an air port, and a connecting groove. The bottom of the mounting sleeve is provided with a sleeve opening. The movable plate is movably fitted into the sleeve opening of the mounting sleeve. The cut surface is obliquely opened at the bottom of the movable plate. The air port is an oblique opening and symmetrically distributed on the cut surface and communicates with the connecting groove. The connecting groove is opened at the top of the movable plate.

[0014] Preferably, the intake and exhaust control assembly includes a distribution frame, a first air passage, a second air passage, a crank arm, a vent pipe, a fixed sleeve, a movable sleeve, a side opening, and a second spring. The distribution frame is fixedly connected to the top of the mounting sleeve. The first and second air passages are distributed in the distribution frame from bottom to top. The fixed sleeve is fixedly connected to the end of the mounting sleeve, and the fixed sleeve communicates with a through hole at the end of the mounting sleeve. The movable sleeve is movably fitted into the through hole of the mounting sleeve. The side opening is located on the outer surface of the movable sleeve. One end of the crank arm is movably fitted into the second air passage, and the other end of the crank arm is horizontally fitted into the fixed sleeve and fixed inside the movable sleeve. The vent pipe is connected between the first air passage and the fixed sleeve. The second spring is fixed in the fixed sleeve, and the other end of the second spring is fixedly connected to the movable sleeve.

[0015] Preferably, the conduction switching mechanism includes a control valve, an air guide pipe, a mounting ring, and a control switch. The control valve is connected to the end of the distribution frame. One end of the air guide pipe is connected to the inlet end of the control valve, and the other end of the air guide pipe passes through the assembly box and is connected to the air duct. The mounting ring is fixedly sleeved on the movable shaft of the electric push rod. The control switch is fixed on the top of the mounting sleeve and located on the moving path of the mounting ring. The control valve has two air outlets, which are respectively connected to the first air passage and the second air passage.

[0016] Preferably, the film roll support mechanism includes a sleeve frame, a positioning crank, and a locking bolt. One end of the positioning crank is elastically sleeved in the sleeve frame, and the other end of the positioning crank is sleeved with the film roll. The locking bolt is used to lock the position of the positioning crank.

[0017] The beneficial effects of this invention are as follows:

[0018] (1) The present invention achieves automatic walking by driving the active wheel at the bottom of the vehicle body. The vibration leveling mechanism at the bottom of the assembly box achieves reciprocating vibration under the drive of the composite drive component. At the same time, the film support mechanism pulls the film to automatically unfold and cover the concrete surface as the vehicle body moves forward. Thus, the synchronous vibration leveling and film covering operation of the concrete can be achieved during the movement of the equipment, realizing automated continuous operation, greatly improving construction efficiency and reducing manual input.

[0019] (2) The present invention generates a stable airflow through the composite drive component during operation. After being introduced into the composite treatment head through the conduction switching mechanism and the suction and exhaust control component, it forms a symmetrical and inclined blowing airflow on both sides. When the film is released, it blows along the middle of the film to both sides, which can not only fully unfold the film, but also expel the air in the middle during the film covering process, so that the film is evenly and tightly attached to the concrete surface, avoiding the wrinkles, bulges or local cavities that are common in traditional film covering, thereby significantly improving the flatness and density of the film covering.

[0020] (3) When the vehicle body moves out of the concrete area, the present invention installs a control mechanism to drive the composite treatment head to press down and quickly cut the film through the cutting surface; at the same time, the airflow is directed to the second air passage of the intake and exhaust control component through the conduction switching mechanism, which drives the internal movable sleeve to form a low-pressure suction effect similar to a piston, so that the cut film end is firmly adsorbed at the bottom of the composite treatment head, and there will be no problem of the film free end tangling or shrinking. This not only avoids the cumbersome operation of manual cutting and support required by traditional film covering, but also ensures that the film end can automatically unfold when the next section of construction is carried out, realizes the stable connection of continuous construction, and improves the safety of on-site operation. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention;

[0022] Figure 2 This is an exploded view of the lifting assembly mechanism and assembly block of the present invention;

[0023] Figure 3 This is a partial sectional view of the assembly box and the vibrating leveling mechanism of the present invention;

[0024] Figure 4 This is an exploded view of the composite drive component of the present invention;

[0025] Figure 5 This is an exploded view of the vibrating and leveling mechanism of the present invention;

[0026] Figure 6 This is a schematic diagram of the installation of the control mechanism and the intake / exhaust control assembly of the present invention;

[0027] Figure 7 This is a cross-sectional schematic diagram of the installation control mechanism and intake / exhaust control assembly of the present invention;

[0028] Figure 8 for Figure 7 Enlarged structural diagram at point A;

[0029] Figure 9 This is a cross-sectional view of the composite processing head of the present invention;

[0030] Figure 10 This is a cross-sectional view of the film support mechanism of the present invention;

[0031] Figure 11 This is a schematic diagram of the trachea.

[0032] Figure 12 This is a schematic diagram of the sliding cavity.

[0033] In the diagram: 1. Vehicle body; 2. Assembly frame; 3. Support wheel; 4. Lifting assembly mechanism; 41. Mounting frame; 42. Threaded shaft; 5. Assembly block; 6. Assembly box; 7. Film roll support mechanism; 8. Vibration leveling mechanism; 81. Vibration leveling baffle; 82. Top frame; 83. Spring 1; 84. Connecting rod; 85. Crossbar; 9. Installation control mechanism; 91. Installation sleeve; 92. Connecting frame; 93. Electric push rod; 10. Composite processing head; 101. Movable plate; 102. Cut surface; 103. Air inlet; 104. Connecting groove; 11. Intake and exhaust control assembly; 11. Distribution frame; 112. No. 1 airway; 113. No. 2 airway; 114. Crank arm; 115. Air tube; 116. Fixed sleeve; 117. Movable sleeve; 118. Side opening; 119. Spring 2; 12. Composite drive assembly; 121. Drive motor; 122. Rotating shaft; 123. Cam; 124. Fan blade; 125. Air duct; 13. Intake port; 14. Control valve; 15. Air guide tube; 16. Mounting ring; 17. Control switch; 18. Fixed column; 19. Movable column; 20. Return spring; 21. Sliding chamber; 22. Air tube. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] like Figures 1 to 10 As shown, this embodiment of the invention provides a concrete vibratory leveling and film covering device, including a vehicle body 1. An assembly frame 2 is fixedly connected to one side of the vehicle body 1. An assembly box 6 is movably mounted at the end of the assembly frame 2. A vibratory leveling mechanism 8, a film rolling support mechanism 7, and an installation control mechanism 9 are sequentially fixedly mounted on the bottom of the assembly box 6. A composite drive assembly 12 is provided inside the assembly box 6. A composite processing head 10 is movably sleeved on the bottom of the installation control mechanism 9. An exhaust control assembly 11 and a switching mechanism are respectively provided outside the installation control mechanism 9. The composite drive assembly 12 is connected to the switching mechanism and is in communication with the control mechanism. The airflow is sent into the intake and exhaust control component 11 through the conduction switching mechanism, and the composite drive component 12 controls the reciprocating vibration of the leveling mechanism 8. The intake and exhaust control component 11 is used to further introduce the airflow into the composite processing head 10 and blow the airflow outward. On the other hand, the intake and exhaust control component 11 draws the external air into the installation control mechanism 9 through the composite processing head 10. The film roll support mechanism 7 includes a sleeve frame, a positioning crank and a locking bolt. One end of the positioning crank is elastically sleeved in the sleeve frame, and the other end of the positioning crank is sleeved with the film roll. The locking bolt is used to lock the position of the positioning crank.

[0036] Example 1: Before use, first pull the positioning crank in the film roll support mechanism 7 and fit the film roll into it. Rotate the locking bolt to lock the position of the positioning crank. Then, start the vehicle body 1 and move it to the concrete area to be covered with film, so that the assembly box 6 is located at the edge of the concrete area to be covered with film. Operate the lifting assembly mechanism 4 according to the concrete thickness to make the height of the assembly box 6 appropriate and ensure that the vibrating leveling mechanism 8 and the film roll are in contact with the top surface of the concrete layer. First, pull out a section of film and cover the top of the concrete layer. Start the vehicle body 1. As the vehicle body 1 moves, it pulls the vibrating leveling mechanism 8 and the film roll along the top surface of the concrete. The film roll rolls and releases the film for covering. Start the composite drive assembly 12. The drive motor 121 drives the rotating shaft 122 to rotate, so that the cam 123 and the fan blade 124 rotate synchronously. On the one hand, the cam 123 rotates quickly and pushes the crossbar 85 at the top of the vibrating leveling mechanism 8 back and forth. With the elasticity of the spring 83, the crossbar 85 drives the vibrating leveling baffle 81 to vibrate back and forth along the inside of the top frame 82 through the connecting rod 84. Furthermore, the vibrating baffle 81 vibrates along the top of the concrete layer, smoothing out the tracks left by the drive wheel and support wheel 3 in the vehicle body 1 and simultaneously covering them with a film. On the other hand, as the fan blade 124 rotates at high speed in the air duct 125, ambient air is drawn in through the suction port 13, forming an axial flow. This airflow is then directed into the air guide pipe 15 outside the air duct 125, and through the control valve 14, the airflow is directed into the first air passage 112 in the intake and exhaust control assembly 11, and then input into the fixed sleeve 116 through the vent pipe 115. The airflow is input into the mounting sleeve 91 through the middle cavity inside the movable sleeve 117 and the side opening 118 in the fixed sleeve 116, and the airflow is injected into the air port 103 through the connecting groove 104 of the composite treatment head 10. The airflow is discharged from the symmetrical and inclined air ports 103 on both sides and blown above the film released from the film roll. The inclined airflow on both sides blows along the middle of the film to both sides, so that the film is fully unfolded and adhered to the top of the concrete layer, completing the synchronous vibration leveling and film covering of the concrete in the self-propelled state.

[0037] See Figure 1 , Figure 2 The bottom of the vehicle body 1 is provided with a drive wheel, the bottom of the assembly frame 2 is provided with a support wheel 3, the end of the assembly frame 2 is fixedly provided with a lifting assembly mechanism 4, the side of the assembly box 6 is fixedly installed with an assembly block 5, the assembly block 5 is installed in the lifting assembly mechanism 4, the lifting assembly mechanism 4 includes a mounting frame 41 and a threaded shaft 42, the mounting frame 41 is fixed in the assembly frame 2, the threaded shaft 42 is rotatably installed in the mounting frame 41 through a bearing, the assembly block 5 is threadedly sleeved on the outer surface of the threaded shaft 42, the outer side of the assembly block 5 is provided with a protrusion, and the protrusion of the assembly block 5 is slidably sleeved on the inner wall of the assembly frame 2.

[0038] The drive wheel is driven by the power mechanism in the vehicle body 1 to achieve automatic walking and automatic film covering. The support wheel 3 works with the assembly frame 2 to provide walking support, which improves walking stability and provides stable support for the various mechanisms at the assembly box 6. The threaded shaft 42 in the lifting assembly mechanism 4 rotates to move the support sleeve assembly block 5 up and down, adjusting the height of the assembly box 6. This allows the height of the film roll support mechanism 7 and the vibrating leveling mechanism 8 to be adjusted according to the concrete thickness. The top of the threaded shaft 42 is also equipped with a rotating wheel, which facilitates the control of the rotation of the threaded shaft 42.

[0039] The aforementioned threaded shaft 42 and assembly block 5 cooperate to form a lead screw transmission pair, which is something that those skilled in the art should know and understand, so it will not be described in detail here.

[0040] See Figure 3 , Figure 4 The composite drive assembly 12 includes a drive motor 121, a rotating shaft 122, a cam 123, a fan blade 124, and a blower 125. The rotating shaft 122 is fixedly connected to the output shaft of the drive motor 121. One end of the rotating shaft 122 passes through the assembly box 6 and extends into the interior of the assembly box 6. The cam 123 and the fan blade 124 are both fixedly sleeved on the outer surface of the rotating shaft 122. The blower 125 is fixed inside the assembly box 6 and located outside the fan blade 124. An intake hole 13 is provided on the outer side of the assembly box 6, and the intake hole 13 communicates with the blower 125.

[0041] The composite drive assembly 12 provides vibration power and airflow output. Vibration processing is completed by the rotation of the cam 123 and its contact with the vibration leveling mechanism 8, achieving vibration and air supply processing simultaneously. The assembly box 6 is also equipped with a support seat, which is sleeved with the rotating shaft 122 to improve rotational stability.

[0042] See Figure 3 , Figure 5 The vibrating mechanism 8 includes a vibrating baffle 81, a top frame 82, a spring 83, a connecting rod 84, and a crossbar 85. The top frame 82 is fixed to the bottom of the assembly box 6 by a connecting rod at the top. The upper end of the vibrating baffle 81 is movably sleeved in the top frame 82. One end of the spring 83 is fixed to the top of the vibrating baffle 81 and the other end is fixed in the top frame 82. One end of the connecting rod 84 is fixed to the top of the vibrating baffle 81, and the other end of the connecting rod 84 moves through the top frame 82 and extends into the interior of the assembly box 6. The crossbar 85 is fixedly connected to the top of the connecting rod 84 and is located at the bottom of the cam 123.

[0043] The elasticity of spring 83, combined with the action of crossbar 85 and cam 123, achieves reciprocating vibration, removes the tracks of the drive wheel and support wheel 3 in the vehicle body 1, and restores the concrete to a uniform and flat state.

[0044] See Figure 3 , Figure 6 The installation control mechanism 9 includes an installation sleeve 91, a connecting frame 92, and an electric push rod 93. The connecting frame 92 is fixedly connected to the top of the installation sleeve 91, and the top of the connecting frame 92 is fixedly connected to the assembly box 6. The electric push rod 93 is fixed on the connecting frame 92, and the free end of the electric push rod 93 passes through the top of the installation sleeve 91 and is fixedly connected to the composite processing head 10 inside the installation sleeve 91.

[0045] The installation control mechanism 9, through the installation sleeve 91, passes through the ventilation area, and the electric push rod 93 controls the movement of the composite treatment head 10. This enables film cutting and pressing, allowing the film adsorbed at the bottom to contact the concrete and be coated. The inner wall of the sleeve opening at the bottom of the installation sleeve 91 is equipped with a sealing gasket to achieve dynamic sealing and prevent bottom leakage. At the same time, the top of the installation sleeve 91 is equipped with a sealing sleeve to achieve dynamic sealing at the movable shaft of the electric push rod 93 and prevent top leakage.

[0046] See Figure 7 , Figure 9 The composite processing head 10 includes a movable plate 101, a cut surface 102, an air port 103, and a connecting groove 104. The bottom of the mounting sleeve 91 is provided with a sleeve opening. The movable plate 101 is movably fitted into the sleeve opening of the mounting sleeve 91. The cut surface 102 is inclinedly opened at the bottom of the movable plate 101. The air port 103 is an inclined opening and symmetrically distributed on the cut surface 102 and communicates with the connecting groove 104. The connecting groove 104 is opened at the top of the movable plate 101.

[0047] The composite treatment head 10, with air vents 103 distributed at the bottom, creates a blowing effect from the center of the top surface of the film to both sides. This improves the flattening effect of the film and, under the thrust of the airflow at the top, causes the film to expel air from the center to the outside, ensuring that the film fully covers the concrete and avoiding the formation of local hollow cavities during film covering. The airflow thrust further ensures the adhesion between the film and the concrete, enhancing the stability after film covering. The cutting surface 102 provides a cutting tip at the bottom of the movable plate 101, facilitating rapid cutting. At the same time, the inclined surface of the cutting surface 102 ensures full contact between the cut film end and the side facing the film roll after cutting, and seals the air vents 103. Combined with the low pressure inside the mounting sleeve 91, this achieves full adsorption and fixation of the film end on the film roll, preventing the free end from tangling and overlapping, thus preparing for rapid film covering in the future.

[0048] See Figure 7 , Figure 8The intake and exhaust control assembly 11 includes a distribution frame 111, a first air passage 112, a second air passage 113, a crank arm 114, an air vent 115, a fixed sleeve 116, a movable sleeve 117, a side opening 118, and a second spring 119. The distribution frame 111 is fixedly connected to the top of the mounting sleeve 91. The first air passage 112 and the second air passage 113 are distributed in the distribution frame 111 from bottom to top. The fixed sleeve 116 is fixedly connected to the end of the mounting sleeve 91, and the fixed sleeve 116 and the end of the mounting sleeve 91 have a passage. The hole is connected, and the movable sleeve 117 is movably fitted into the through hole of the mounting sleeve 91. The side opening 118 is opened on the outer side of the movable sleeve 117. One end of the crank arm 114 is movably fitted into the second air passage 113, and the other end of the crank arm 114 is horizontally fitted into the fixed sleeve 116 and fixed inside the movable sleeve 117. The air pipe 115 is connected and set between the first air passage 112 and the fixed sleeve 116. The second spring 119 is fixed in the fixed sleeve 116, and the other end of the second spring 119 is fixedly connected to the movable sleeve 117.

[0049] The intake and exhaust control assembly 11 works in conjunction with the external control valve 14. Its two sets of air passages perform two functions respectively. When the air flows into the first air passage 112, the airflow is directed into the mounting sleeve 91 to provide a purging airflow. When the air flows into the second air passage 113, it pushes the crank arm 114 to move, which in turn moves the movable sleeve 117 and draws air from inside the mounting sleeve 91. When the bottom of the composite treatment head 10 is sealed, the internal pressure reduction treatment of the mounting sleeve 91 is completed. The second spring 119 facilitates the subsequent reset of the movable sleeve 117. The end of the fixed sleeve 116 is also provided with a sealing sleeve to achieve dynamic sealing.

[0050] Specifically, when the movable sleeve 117 moves, it causes the side opening 118 to slide into the fixed sleeve 116, sealing the side opening 118 while making the movable sleeve 117 form a "piston mechanism" to complete the suction function.

[0051] See Figure 6 The switching mechanism includes a control valve 14, an air guide pipe 15, a mounting ring 16, and a control switch 17. The control valve 14 is connected to the end of the distribution frame 111. One end of the air guide pipe 15 is connected to the inlet end of the control valve 14, and the other end of the air guide pipe 15 passes through the assembly box 6 and is connected to the air duct 125. The mounting ring 16 is fixedly sleeved on the movable shaft of the electric push rod 93. The control switch 17 is fixed on the top of the mounting sleeve 91 and located on the moving path of the mounting ring 16. The control valve 14 has two air outlets, which are connected to the first air passage 112 and the second air passage 113, respectively.

[0052] The switching mechanism, through the cooperation of the mounting ring 16 and the control switch 17, allows the control switch 17 to be pressed and the control valve 14 to be activated and reversed when the electric push rod 93 controls the composite processing head 10 to make the next cut, thereby realizing the automatic switching action. The control valve 14 is activated and reversed again only after the control switch 17 is pressed twice, ensuring that the bottom film is still adhered and fixed after the composite processing head 10 is cut and reset.

[0053] For example, the control valve 14 can be designed with reference to the existing two-position three-way solenoid valve, which is something that those skilled in the art should know and understand, so it will not be described in detail here. Furthermore, the electrical signal connection between the control valve 14 and the control switch 17 can be transmitted and controlled via a controller, which is also something that those skilled in the art should know and understand, so it will not be described in detail here.

[0054] Example 2: When the vehicle body is moved out of the concrete area, a single layer of concrete covering is completed. At this time, the electric push rod 93 in the installation control mechanism 9 is activated. The electric push rod 93 drives the composite treatment head 10 to move downward quickly, and the bottom film is quickly cut off by the cut surface 102 at the bottom of the movable plate 101. As the movable shaft in the electric push rod 93 moves, it synchronously drives the installation ring 16 downward and presses the control switch 17. The control switch 17 causes the control valve 14 to operate and switch the conduction direction, maintaining the start of the composite drive assembly 12. When the airflow enters the control valve 14, the conduction direction is switched to suction and discharge. In the second air passage 113 of the air control assembly 11, one end of the internally sleeved crank arm 114 is pushed to move laterally, and the other end of the crank arm 114 moves synchronously and drives the fixed movable sleeve 117 to slide. Specifically, the movable sleeve 117 slides outward along the through hole at the end of the mounting sleeve 91. The movable sleeve 117 slides into the fixed sleeve 116 and forms a "piston mechanism" and draws air from inside the mounting sleeve 91, so that the mounting sleeve 91 draws air outward through the air port 103 of the composite processing head 10. At this time, the composite processing head 10 moves downward under the action of the electric push rod 93 and cuts... The bottom film is cut off, and the cut surface 102 facing the film roll is pressed against the film, so that the film on the cut surface 102 seals the air port 103. With the air port 103 sealed, combined with the internal low pressure of the mounting sleeve 91, the cut film located at the film roll is adsorbed and fixed on the bottom cut surface 102 of the composite treatment head 10, thus completing the adsorption and fixation of the film end on the film roll after cutting. When the device moves to another concrete area to be covered, the composite treatment head 10 is lowered by the electric push rod 93, and the film adsorbed and fixed at the bottom is squeezed and attached to the top of the concrete layer. This causes the control valve 14 to switch again and connect with the first air passage 112. As the airflow enters the mounting sleeve 91 again, the internal air pressure of the mounting sleeve 91 increases, blowing the film adsorbed on the top of the composite treatment head 10 downward to separate it, releasing the film from the composite treatment head 10. At the same time, the film is placed downward on top of the concrete layer. The vehicle body is started and moved to perform automatic vibration and film covering treatment for the next concrete area. When covering multiple concrete areas, there is no need to manually cut the film. At the same time, the film on the film roll remains stably positioned, and there is no need to manually pull the film multiple times during continuous film covering.

[0055] The working principle and usage process of this invention are as follows: Before use, first pull the positioning crank in the film roll support mechanism 7 and put the film roll into it. Rotate the locking bolt to lock the position of the positioning crank. Then, start the vehicle body 1 and move it to the concrete area to be covered with film, so that the assembly box 6 is located at the edge of the concrete area to be covered with film. Operate the lifting assembly mechanism 4 according to the concrete thickness to make the height of the assembly box 6 appropriate and ensure that the vibrating and leveling mechanism 8 and the film roll are in contact with the top surface of the concrete layer. First, pull out a section of film and cover the top of the concrete layer. Start the vehicle body 1. As the vehicle body 1 moves, it pulls the vibrating and leveling mechanism 8 and the film roll along the top surface of the concrete. The film roll rolls and releases the film for covering. Start the composite drive assembly 12. The drive motor 121 drives the rotating shaft 122 to rotate, so that the cam 123 and the fan blade 124 rotate synchronously. On the one hand, the cam 123 rotates quickly and pushes the crossbar 85 at the top of the vibrating and leveling mechanism 8 back and forth. With the elasticity of the spring 83, the crossbar 85 drives the vibrating and leveling baffle 81 along the inside of the top frame 82 through the connecting rod 84. The system vibrates up and down, causing the leveling baffle 81 to vibrate along the top of the concrete layer, leveling the tracks left by the drive wheel and support wheel 3 in the vehicle body 1 and simultaneously covering them with a film. On the other hand, as the fan blade 124 rotates at high speed in the air duct 125, ambient air is drawn in through the suction hole 13, forming an axial flow. This airflow is then directed into the air guide pipe 15 outside the air duct 125, and through the control valve 14, the airflow is directed into the first air passage 112 in the intake and exhaust control assembly 11, and then input to the fixed sleeve 1 through the vent pipe 115. In 16, the airflow is input into the mounting sleeve 91 through the middle cavity inside the movable sleeve 117 and the side opening 118 in the fixed sleeve 116, and the airflow is injected into the air port 103 through the connecting groove 104 of the composite treatment head 10. The airflow is discharged from the symmetrical and inclined air ports 103 on both sides and blown towards the film released from the film roll. The inclined airflow on both sides blows along the middle of the film to both sides and spreads out, so that the film is fully spread out and adheres to the top of the concrete layer, completing the synchronous vibration leveling and film covering of the concrete in the self-walking state.When the vehicle body is removed from the concrete area, a single layer of concrete covering is completed. At this time, the electric push rod 93 in the installation control mechanism 9 is activated. The electric push rod 93 drives the composite treatment head 10 to move downwards quickly, and the bottom film is quickly cut off by the cut surface 102 at the bottom of the movable plate 101. As the movable shaft in the electric push rod 93 moves, it synchronously drives the installation ring 16 downwards and presses the control switch 17. The control switch 17 causes the control valve 14 to activate and switch the conduction direction, maintaining the start of the composite drive assembly 12, and airflow into the control valve. When the air intake and exhaust control assembly 11 is switched at time 14, the air intake and exhaust control assembly 11 is connected to the second air passage 113, and one end of the internally sleeved crank arm 114 is moved laterally. The other end of the crank arm 114 moves synchronously and drives the fixed movable sleeve 117 to slide. Specifically, the movable sleeve 117 slides outward along the through hole at the end of the mounting sleeve 91. The movable sleeve 117 slides into the fixed sleeve 116 and forms a "piston mechanism" and draws air from inside the mounting sleeve 91, so that the mounting sleeve 91 draws air outward through the air port 103 of the composite treatment head 10. At this time, the composite treatment head 10 moves downward under the action of the electric push rod 93 and cuts the bottom film. The cut surface 102 facing the film roll presses the film on it, so that the film on the cut surface 102 seals the air port 103. Under the sealed state of the air port 103, combined with the internal low pressure of the mounting sleeve 91, the cut film located at the film roll is adsorbed and fixed on the bottom cut surface 102 of the composite treatment head 10, completing the adsorption and fixation of the film end on the film roll after cutting. When the device moves to another concrete area to be covered, the... The electric push rod 93 controls the composite treatment head 10 to move downwards, pushing and attaching the film, which is fixed at the bottom, to the top of the concrete layer. This causes the control valve 14 to switch direction and connect with the first air passage 112. As airflow enters the mounting sleeve 91 again, the internal air pressure increases, blowing the film adsorbed on the top of the composite treatment head 10 downwards to separate it, releasing the film from the composite treatment head 10. Simultaneously, the film is placed downwards on top of the concrete layer. The vehicle is then started and moved to perform the next automatic vibration leveling and film covering treatment on the concrete area.

[0056] Example 3: See Figure 11 , Figure 12 The connecting column at the top of the sleeve frame of the roll film support mechanism 7 is configured as a telescopic structure. For example, the connecting column may include a fixed column 18 fixed to the assembly box 6, a movable column 19 slidably adapted to the fixed column, and a return spring 20 is connected between the fixed column 18 and the movable column 19. A sliding cavity 21 is also constructed on the fixed column 18, and the movable column 19 is sealed and slidably connected in the sliding cavity 21.

[0057] The second airway 113 is provided with an air pipe 22 that connects to the sliding cavity 21. After the composite processing head 10 descends to cut the film, the control valve 14 switches to connect with the second airway 113. After the airflow enters the second airway 113, the airflow will be blown into the sliding cavity 21 through the air pipe 22, thereby pushing the film winding support mechanism 7, especially the film winding cylinder, to rise. At this time, the film is pulled up, but because the end of the film is pressed by the composite processing head 10, the film will be in an inclined posture that fits the cut surface 102, making it easier for the film to adhere to the cut surface 102.

[0058] When the pressure inside the sliding cavity 21 reaches its limit, for example, the limit stroke of the telescopic structure can be designed so that after the film roll rises to the limit position, the airflow can no longer blow into the sliding cavity 21, and the air pressure in the second air passage 113 will gradually rise, which can then push the crank arm 114 and the movable sleeve 117 to slide outward as described above, ultimately making the end of the film more smoothly adsorbed onto the cut surface 102 by negative pressure.

[0059] For example, the spring constant of the return spring 20 can be designed to be smaller than that of the spring constant of the second spring 119, thereby realizing the sequential pressing and movement of the movable column 19 and the crank arm 114.

[0060] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A concrete tamping and covering device comprising a vehicle body (1), characterized in that: A mounting frame (2) is fixedly connected to one side of the vehicle body (1). A mounting box (6) is installed at the end of the mounting frame (2) in a liftable manner. A vibrating leveling mechanism (8), a film rolling support mechanism (7), and an installation control mechanism (9) are fixedly installed at the bottom of the mounting box (6) in sequence. A composite drive assembly (12) is provided inside the mounting box (6). A connected composite processing head (10) is movably sleeved at the bottom of the installation control mechanism (9). An intake and exhaust control assembly (11) and a conduction switching mechanism are respectively provided outside the installation control mechanism (9). The composite drive component (12) is connected to the conduction switching mechanism and sends the airflow into the intake and exhaust control component (11) through the conduction switching mechanism. The composite drive component (12) controls the vibration leveling mechanism (8) to reciprocate. The intake and exhaust control assembly (11) is used to further introduce airflow into the composite processing head (10) and blow out the airflow. On the other hand, the intake and exhaust control assembly (11) draws external air into the installation control mechanism (9) through the composite processing head (10).

2. The concrete vibrating and film covering device according to claim 1, characterized in that: The bottom of the vehicle body (1) is provided with a drive wheel, the bottom of the assembly frame (2) is provided with a support wheel (3), the end of the assembly frame (2) is fixedly provided with a lifting assembly mechanism (4), and the side of the assembly box (6) is fixedly installed with an assembly block (5), which is installed in the lifting assembly mechanism (4).

3. The concrete vibrating and film covering device according to claim 2, characterized in that: The lifting assembly mechanism (4) includes a mounting frame (41) and a threaded shaft (42). The mounting frame (41) is fixed in the assembly frame (2). The threaded shaft (42) is rotatably mounted in the mounting frame (41) through a bearing. The assembly block (5) is threaded onto the outer surface of the threaded shaft (42). The outer side of the assembly block (5) is provided with a protrusion. The protrusion of the assembly block (5) is slidably mounted on the inner wall of the assembly frame (2).

4. The concrete vibrating and film covering device according to claim 3, characterized in that: The composite drive assembly (12) includes a drive motor (121), a rotating shaft (122), a cam (123), a fan blade (124), and a blower (125). The rotating shaft (122) is fixedly connected to the output shaft of the drive motor (121). One end of the rotating shaft (122) passes through the assembly box (6) and extends into the interior of the assembly box (6). The cam (123) and the fan blade (124) are both fixedly sleeved on the outer surface of the rotating shaft (122). The blower (125) is fixed inside the assembly box (6) and located outside the fan blade (124). The outer side of the assembly box (6) is provided with an intake hole (13), which communicates with the blower (125).

5. A concrete vibratory leveling and film covering device according to claim 4, characterized in that: The vibrating and leveling mechanism (8) includes a vibrating and leveling baffle (81), a top frame (82), a spring (83), a connecting rod (84), and a crossbar (85). The top frame (82) is fixed to the bottom of the assembly box (6) by a connecting rod at the top. The upper end of the vibrating and leveling baffle (81) is movably sleeved in the top frame (82). One end of the spring (83) is fixed to the top of the vibrating and leveling baffle (81), and the other end is fixed in the top frame (82). One end of the connecting rod (84) is fixed to the top of the vibrating and leveling baffle (81), and the other end of the connecting rod (84) moves through the top frame (82) and extends into the interior of the assembly box (6). The crossbar (85) is fixedly connected to the top of the connecting rod (84) and located at the bottom of the cam (123).

6. A concrete vibratory leveling and film covering device according to claim 4, characterized in that: The installation control mechanism (9) includes an installation sleeve (91), a connecting frame (92), and an electric push rod (93). The connecting frame (92) is fixedly connected to the top of the installation sleeve (91), and the top of the connecting frame (92) is fixedly connected to the assembly box (6). The electric push rod (93) is fixed on the connecting frame (92), and the free end of the electric push rod (93) passes through the top of the installation sleeve (91) and is fixedly connected to the composite processing head (10) inside the installation sleeve (91).

7. The concrete vibrating and tarpaulin covering device according to claim 6, characterized in that: The composite processing head (10) includes a movable plate (101), a cut surface (102), an air port (103), and a connecting groove (104). The bottom of the mounting sleeve (91) is provided with a sleeve opening. The movable plate (101) is movably fitted into the sleeve opening of the mounting sleeve (91). The cut surface (102) is obliquely opened at the bottom of the movable plate (101). The air port (103) is an oblique opening and is symmetrically distributed on the cut surface (102) and communicates with the connecting groove (104). The connecting groove (104) is opened at the top of the movable plate (101).

8. The concrete vibrating and tarpaulin covering device according to claim 7, characterized in that: The intake and exhaust control assembly (11) includes a distribution frame (111), a first air passage (112), a second air passage (113), a crank arm (114), a vent pipe (115), a fixed sleeve (116), a movable sleeve (117), a side opening (118), and a second spring (119). The distribution frame (111) is fixedly connected to the top of the mounting sleeve (91). The first air passage (112) and the second air passage (113) are distributed in the distribution frame (111) from bottom to top. The fixed sleeve (116) is fixedly connected to the end of the mounting sleeve (91), and the fixed sleeve (116) and the end of the mounting sleeve (91) have a vent. The holes are connected, the movable sleeve (117) is movably fitted into the through hole of the mounting sleeve (91), the side opening (118) is opened on the outer side of the movable sleeve (117), one end of the crank arm (114) is movably fitted into the second air passage (113), and the other end of the crank arm (114) is horizontally fitted into the fixed sleeve (116) and fixed inside the movable sleeve (117), the air pipe (115) is connected between the first air passage (112) and the fixed sleeve (116), the second spring (119) is fixed in the fixed sleeve (116) and the other end of the second spring (119) is fixedly connected to the movable sleeve (117).

9. The concrete vibrating and tarpaulin covering device according to claim 8, characterized in that: The switching mechanism includes a control valve (14), an air pipe (15), a mounting ring (16), and a control switch (17). The control valve (14) is connected to the end of the distribution frame (111). One end of the air pipe (15) is connected to the inlet end of the control valve (14), and the other end of the air pipe (15) passes through the assembly box (6) and is connected to the air duct (125). The mounting ring (16) is fixedly sleeved on the movable shaft of the electric push rod (93). The control switch (17) is fixed on the top of the mounting sleeve (91) and located on the moving path of the mounting ring (16). The control valve (14) has two air outlets, which are connected to the first air passage (112) and the second air passage (113), respectively.

10. The concrete vibrating and tarpaulin covering device according to claim 1, characterized in that: The film roll support mechanism (7) includes a sleeve frame, a positioning crank and a locking bolt. One end of the positioning crank is elastically sleeved in the sleeve frame, and the other end of the positioning crank is sleeved with the film roll. The locking bolt is used to lock the position of the positioning crank.

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