Concrete floor leveling machine

Abstract

The invention discloses a concrete ground leveling machine which comprises a leveling machine body, the front end of the leveling machine body is connected with a leveling machine main body, the leveling machine main body comprises a lifting driving mechanism, the lifting driving mechanism is provided with a leveling beam device, and the bottom ends of the movable ends of the two sides of the leveling beam device are connected with scraping plates. Height adjusting assemblies are arranged on the two sides of the scraping plate, a switchable one-way driving assembly is arranged above the scraping plate, cleaning assemblies are arranged on the side portions of the height adjusting assemblies, and the cleaning assemblies on the two sides are in transmission connection with the switchable one-way driving assembly through transmission assemblies. By arranging the height adjusting assembly, the one-way driving assembly can be switched, and the heights of the laser receivers on the two sides can be accurately and conveniently adjusted; the cleaning assembly and the transmission assembly are arranged, and when the height of the laser receiver is adjusted, the cleaning mechanism is automatically linked to clean and wipe the window of the receiver.

Description

Technical Field

[0001] This invention belongs to the field of civil engineering machinery and equipment technology, specifically relating to a concrete floor leveling machine. Background Technology

[0002] When pouring concrete for the ground, laser leveling machines are usually used to process the concrete or asphalt pavement surface efficiently, quickly and smoothly.

[0003] The working principle of a laser leveling machine relies on a hydraulically driven leveling head, combined with a laser system and a computer control system, to automatically level the surface while simultaneously performing the leveling task. The leveling head is equipped with an integrated scraper, stirring auger, vibrator, and leveling beam, combining all leveling functions into one unit and completing the task in one go, significantly improving work efficiency.

[0004] However, existing laser screed machines require manual adjustment of the laser receiver's height before operation, which is cumbersome, inefficient, and results in low precision, affecting work quality. Furthermore, dust and concrete slurry splashes in the working environment can easily obstruct the laser receiver's window, causing signal instability and fluctuating height measurements. This leads to frequent up-and-down shaking of the scraper or incorrect adjustments, ultimately impacting the quality of the screed work. Manual cleaning and wiping of the laser receiver's window can easily damage the already screed concrete surface. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a concrete floor leveling machine.

[0006] The technical solution adopted to solve the above technical problems is: a concrete floor leveling machine, including a leveling machine body, wherein the front end of the leveling machine body is connected to the leveling machine main body; The main body of the leveling machine includes a lifting drive mechanism. The bottom end of the lifting drive mechanism is equipped with a leveling beam device, a spiral mixing device, and a vibrating device in sequence from back to front. The bottom ends of the movable ends on both sides of the leveling beam device are connected to scrapers, which are close to the body of the leveling machine. Both sides of the scraper are provided with height adjustment components, and laser receivers are installed at the top of each height adjustment component. A switchable one-way drive component for adjusting the height of the two height adjustment components is provided above the scraper. A cleaning component for cleaning the laser receiver is provided on the side of each height adjustment component. The cleaning components on both sides are connected to the switchable one-way drive component through a transmission component.

[0007] Furthermore, the height adjustment component includes a protective shell base fixed to the side wall of the scraper. A threaded screw is rotatably connected to the bottom of the protective shell base. A reduction bevel gear is sleeved and fixed to the bottom of the threaded screw. A slide rod is also fixed to the bottom of the protective shell base. A connecting plate is slidably connected to the top of the slide rod. A lifting hollow rod is fixed to the upper surface of the connecting plate. The inner wall of the lifting hollow rod is threadedly connected to the outer wall of the threaded screw. A bellows hose is fixed between the connecting plate and the protective shell base. The threaded screw and slide rod are both located within the bellows hose. Through this technical solution, before operation, two laser receivers are locked and installed on the tops of the lifting hollow rods on both sides. A switchable unidirectional drive component drives the threaded screw to rotate. The rotation of the threaded screw drives the lifting hollow rod, which is threaded to it, to move along the slide rod for precise linear lifting and lowering. Combined with an external laser emitter to change the perceived height of the laser receivers, the accuracy is improved by an order of magnitude compared to traditional manual or hydraulic coarse adjustment methods, enabling rapid and accurate response to minute changes in the design elevation.

[0008] Furthermore, the switchable unidirectional drive assembly includes a protective shell fixed to the upper surface of the scraper and bearing seats. Several bearing seats are respectively located on both sides of the protective shell. A servo motor is fixedly installed on the rear side wall of the protective shell. A bevel gear is fixedly connected to the output end of the servo motor through the side wall of the protective shell. A transmission rod is rotatably connected between two bearing seats on the same side. A limit groove is opened on the end face of the transmission rod near the protective shell. A limit rod is slidably limited on the inner wall of the limit groove. An end face gear is fixedly connected to the end face of the limit rod near the protective shell. A spring is sleeved on the outside of the limit rod. A bevel gear is fixedly connected to the other end of the transmission rod through the side wall of the adjacent protective shell base. The bevel gear meshes with a reduction bevel gear disk. A unidirectional adjustment mechanism for switching the rotation of the transmission rods on both sides is provided inside.

[0009] Furthermore, the unidirectional adjustment mechanism includes a miniature electric push rod fixedly installed on the inner front wall of the protective shell and a limiting sleeve rotatably connected to the side wall of the protective shell. The piston rod of the miniature electric push rod is arranged along the length direction of the transmission rod. The movable end of the miniature electric push rod is fixedly connected to a connecting seat. A displacement rod is rotatably connected through the side wall of the connecting seat. The two ends of the displacement rod are respectively fixedly connected to the two sides of the protective shell with end face gears one. The two sides of the end face gears one mesh with the adjacent end face gears two. The outer side wall of the displacement rod is provided with a limiting protrusion. The outer wall of the limiting protrusion is slidably connected to the inner side wall of the limiting sleeve. A bevel gear two is fixedly sleeved on the outer side of the limiting sleeve. The bevel gear two meshes with the bevel gear one. Through the above technical solution, the meshing and disengagement design of end face gear one and end face gear two, combined with spring reset, and the single servo motor drive and micro electric push rod switching transmission direction, can realize two modes of independent adjustment on the left and right sides. The operator only needs to control the forward and reverse rotation of the motor to conveniently and accurately complete the height adjustment of the laser receiver. The adjustment process is intuitive, accurate and reliable.

[0010] Furthermore, the cleaning assembly includes a support frame fixed to the outer wall of the protective housing base, a storage shell fixed to the side wall of the support frame facing the laser receiver, a spraying mechanism for spraying the laser receiver window is provided below the storage shell, a wiping mechanism for wiping the laser receiver is provided inside the storage shell, and a quick-release mechanism is provided at the top of the wiping mechanism.

[0011] Furthermore, the spraying mechanism includes a threaded cap fixed to the top of the support frame and a micro pump. The bottom end of the threaded cap is threadedly connected to a liquid storage tank. A suction hose is connected through the water inlet of the micro pump, located inside the liquid storage tank. A nozzle is installed at the outlet of the micro pump, with the nozzle facing the laser receiver. Through this technical solution, the micro pump can be instructed by the control terminal to pump liquid from the liquid storage tank and spray it directionally onto the laser receiver window through the nozzle. This can pre-soften and dissolve dried mud, oil, and other stubborn stains, achieving more efficient cleaning in conjunction with the wiping mechanism.

[0012] Furthermore, the wiping mechanism includes symmetrically rotatable synchronous wheels mounted inside the bottom of the housing. A water-absorbing cotton synchronous belt is driven between the two synchronous wheels. U-shaped strips are symmetrically arranged at the bottom of the housing, and an arc-shaped spring is fixed between the two U-shaped strips. The outer arc surface of the arc-shaped spring abuts against the inner wall of the water-absorbing cotton synchronous belt. Through this technical solution, when the two synchronous wheels rotate, they drive the water-absorbing cotton synchronous belt to rotate. The arc-shaped spring provides continuous elastic pressure to the water-absorbing cotton synchronous belt, ensuring a tight fit with the laser receiver window. Simultaneously, it can adapt to slight dimensional changes, ensuring a uniform and reliable wiping effect.

[0013] Furthermore, each laser receiver has an arc-shaped guide block fixed to its bottom. Through this technical solution, as the laser receiver descends, the arc-shaped guide block at its bottom, in conjunction with the arc-shaped spring sheet, guides the absorbent cotton synchronous belt, ensuring that the absorbent cotton synchronous belt fits snugly against the laser receiver window and guaranteeing the normal operation of the wiping mechanism.

[0014] Furthermore, the quick-release mechanism includes a sliding housing vertically fixed to the side wall of the storage shell. A slide frame is slidably connected to the inner wall of the sliding housing, and a locking bolt is threaded through the outer wall of the slide frame. A cover plate is fixed to the lower surface of the top of the slide frame, and a through hole corresponding to the position of the synchronous pulley is provided on the cover plate. With this technical solution, by loosening the locking bolt, the cover plate and slide frame can be lifted along the sliding housing, fully exposing the absorbent cotton synchronous belt and synchronous pulley. This facilitates quick replacement of worn absorbent cotton or overall maintenance, reducing the difficulty and time cost of equipment maintenance.

[0015] Furthermore, the transmission assembly includes a transmission wheel one fixedly fitted to the outer wall of the bearing housing, and a fixing frame fixed to the lower surface of the storage shell. A rotating shaft is rotatably connected through the side wall of the fixing frame. A bevel gear three and a transmission wheel two are respectively fixed to the two ends of the rotating shaft. Transmission wheels one and two on the same side are connected by a transmission belt. A bevel gear three meshes with a bevel gear four, which is fixedly installed at the bottom of the synchronous pulley. Through this technical solution, whenever a height adjustment operation is performed, the rotation of the transmission rod synchronously drives the absorbent cotton synchronous belt of the wiping mechanism to rotate, automatically wiping the laser receiver window. This achieves "adjustment equals cleaning," requiring no additional power or operating steps, is highly efficient and intelligent, and ensures that key sensors are in optimal working condition after each setting, greatly improving the continuity of operations and operational efficiency.

[0016] Furthermore, the control terminals of the leveling machine body are electrically connected to servo motors, miniature electric push rods, and miniature pumps. Through this technical solution, operators can centrally control the height adjustment of the laser receiver and the start / stop of the spray cleaning from the cab or via remote control, achieving "human-machine separation" or remote control, thus improving construction safety and operational comfort.

[0017] The beneficial effects of this invention are as follows: (1) The present invention, through the height adjustment component and the switchable unidirectional drive component, can realize two modes of left-side adjustment and right-side adjustment by a single servo motor. The operator only needs to control the forward and reverse rotation of the motor to quickly adjust the height of the laser receivers on both sides for leveling. The adjustment process is intuitive, accurate and reliable, which is conducive to improving work efficiency. (2) By setting up cleaning components and transmission components, the present invention realizes the forced linkage between height adjustment action and laser receiver cleaning action. Whenever the operator adjusts the height of the laser receiver to adapt to the terrain or set the elevation, the synchronous belt of the cleaning mechanism will automatically run to wipe the receiver window thoroughly. This ensures that the key sensor is in the best working state after each setting, without the need for additional shutdown for cleaning, which greatly improves the continuity and efficiency of the operation. During ground leveling construction, if dust or concrete slurry splashes and covers the window of the laser receiver, the machine can be stopped and the height adjustment action can be performed again to automatically clean the window of the laser receiver. Attached Figure Description

[0018] Figure 1 This is a perspective view of a concrete floor leveling machine according to the present invention; Figure 2 This invention relates to a three-dimensional concrete floor leveling machine body. Figure 1 ; Figure 3 This invention relates to a three-dimensional concrete floor leveling machine body. Figure 2 ; Figure 4 This is a structural diagram of the height adjustment component of a concrete floor leveling machine according to the present invention; Figure 5 This is a perspective view of a switchable unidirectional drive component of a concrete floor leveling machine according to the present invention. Figure 6 yes Figure 5 Enlarged view of point A; Figure 7 This is a structural diagram of the one-way adjustment mechanism of a concrete floor leveling machine according to the present invention. Figure 8 This is a perspective view of the cleaning components of a concrete floor leveling machine according to the present invention; Figure 9 This is a perspective view of the spraying mechanism of a concrete floor leveling machine according to the present invention; Figure 10 This is a partial structural diagram of the cleaning component of a concrete floor leveling machine according to the present invention; Figure 11 This is a perspective view of the transmission component of a concrete floor leveling machine according to the present invention.

[0019] Reference numerals: 1. Leveler body; 2. Leveler main body; 3. Height adjustment component; 4. Switchable one-way drive component; 5. Cleaning component; 6. Transmission component; 7. Laser receiver; 201. Lifting drive mechanism; 202. Scraper; 203. Leveling beam device; 204. Spiral mixing device; 205. Vibration device; 301. Protective shell base; 302. Threaded screw; 303. Reduction bevel gear disc; 304. Slide rod; 305. Connecting plate; 306. Lifting hollow rod; 307. Bellows hose; 401. Protective shell; 402. Servo motor; 403. Bevel gear one; 404. One-way adjustment mechanism; 4041. Miniature electric push rod; 4042. Connecting seat; 4043. Displacement rod; 4044. End face gear one; 4045. Limiting protrusion; 4046. Limiting sleeve; 4047. Bevel gear two ; 405, Bearing housing; 406, Transmission rod; 4061, Limiting groove; 407, Bevel gear; 408, Limiting rod; 409, End face gear II; 410, Spring; 501, Support frame; 502, Spraying mechanism; 503, Storage shell; 504, Wiping mechanism; 505, Quick release mechanism; 5021, Threaded cap; 5022, Miniature pump; 5023, Sprayer head; 5024, Liquid storage tank; 5041 5042. Synchronous pulley; 5043. Absorbent cotton synchronous belt; 5044. U-shaped strip; 5045. Arc-shaped spring; 5056. Slide groove housing; 5057. Slide carriage; 5058. Locking bolt; 5059. Cover plate; 5050. Through hole; 601. Transmission wheel one; 602. Fixing frame; 603. Rotating shaft; 604. Bevel gear three; 605. Transmission wheel two; 606. Bevel gear four; 701. Arc-shaped guide block. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0021] like Figures 1-11 As shown, this embodiment provides a concrete floor leveling machine, including a leveling machine body 1, with a leveling machine main body 2 connected to the front end of the leveling machine body 1; The main body 2 of the leveling machine includes a lifting drive mechanism 201. The bottom end of the lifting drive mechanism 201 is equipped with a leveling beam device 203, a spiral mixing device 204, and a vibrating device 205 in sequence from back to front. The bottom ends of the movable ends on both sides of the leveling beam device 203 are connected to scrapers 202, which are close to the body 1 of the leveling machine. The leveling beam device 203, the spiral mixing device 204, and the vibrating device 205 are existing technical structures in this field, and will not be described in detail here. Both sides of the scraper 202 are provided with height adjustment components 3, and laser receivers 7 are installed on the top of each height adjustment component 3. A switchable one-way drive component 4 is provided above the scraper 202, which can switch and precisely adjust the height of the two side height adjustment components 3. The sides of the height adjustment components 3 are provided with cleaning components 5 for efficient cleaning of the laser receivers 7. The two side cleaning components 5 and the switchable one-way drive component 4 are connected by a transmission component 6.

[0022] like Figure 4 As shown, the height adjustment component 3 includes a protective shell base 301 fixed to the side wall of the scraper 202. A threaded screw 302 is rotatably connected to the bottom of the protective shell base 301. A deceleration bevel gear 303 is sleeved and fixed to the bottom of the threaded screw 302. A slide rod 304 is also fixed to the bottom of the protective shell base 301. A connecting plate 305 is slidably connected to the top of the slide rod 304. A lifting hollow rod 306 is fixed to the upper surface of the connecting plate 305. The inner side wall of the lifting hollow rod 306 is threadedly connected to the outer side wall of the threaded screw 302. A bellows hose 307 is fixed between the connecting plate 305 and the protective shell base 301. The threaded screw 302 and the slide rod 304 are both located inside the bellows hose 307. Based on the above structure, before operation, the two laser receivers 7 are locked and installed on the top of the lifting hollow rods 306 on both sides. The switchable one-way drive assembly 4 drives the threaded screw 302 to rotate. The rotation of the threaded screw 302 drives the lifting hollow rod 306, which is threaded to it, to move along the slide bar 304 for precise linear lifting and lowering. In conjunction with the external laser emitter, the sensing height of the laser receivers 7 is changed. Compared with the traditional manual or hydraulic coarse adjustment method, the accuracy is improved by an order of magnitude, which can quickly and accurately respond to small changes in the design elevation. The bellows hose 307 is used to protect the internal threaded screw 302 and slide bar 304, preventing the intrusion of harsh on-site contaminants such as cement slurry and dust, which can cause jamming, wear, and corrosion, thus ensuring the smoothness and accuracy stability of adjustment over long-term use.

[0023] Furthermore, in a preferred embodiment, such as Figure 5 , Figure 6 , Figure 7As shown, the switchable unidirectional drive assembly 4 includes a protective shell 401 fixed to the upper surface of the scraper 202 and bearing seats 405. Several bearing seats 405 are located on both sides of the protective shell 401. A servo motor 402 is fixedly installed on the rear side wall of the protective shell 401. A bevel gear 403 is fixedly connected to the output end of the servo motor 402 through the side wall of the protective shell 401. A transmission rod 406 is rotatably connected between two bearing seats 405 on the same side. A limited opening is formed on the end face of the transmission rod 406 near the protective shell 401. The inner wall of the positioning groove 4061 and the limiting groove 4061 are all slidingly limited by the limiting rod 408. The end face of the limiting rod 408 near the protective shell 401 is fixedly connected to the end face gear 409. The limiting rod 408 is sleeved with a spring 410. The other end of the transmission rod 406 passes through the side wall of the adjacent protective shell base 301 and is fixedly connected to the bevel gear 407. The bevel gear 407 meshes with the reduction bevel gear disk 303. The protective shell 401 is provided with a one-way adjustment mechanism 404 that switches the rotation of the two transmission rods 406. Preferably, the unidirectional adjustment mechanism 404 includes a miniature electric push rod 4041 fixedly installed on the inner front wall of the protective shell 401, and a limiting sleeve 4046 rotatably connected to the side wall of the protective shell 401. The piston rod of the miniature electric push rod 4041 is arranged along the length direction of the transmission rod 406. The movable end of the miniature electric push rod 4041 is fixedly connected to a connecting seat 4042. A displacement rod 4043 is rotatably connected through the side wall of the connecting seat 4042. Both ends of the displacement rod 4043 pass through the protective shell 401. 1 has end face gear 4044 fixedly connected to both sides. The two end face gears 4044 mesh with the adjacent end face gear 409 respectively. The outer side wall of the displacement rod 4043 is provided with a limiting protrusion 4045. The limiting protrusion 4045 is slidably connected to the inner side wall of the limiting sleeve 4046 to achieve complete decoupling of the rotational power and the axial clutch action. The outer side of the limiting sleeve 4046 is sleeved and fixed with bevel gear 4047. The bevel gear 4047 meshes with bevel gear 403. Based on the above structure, the meshing and disengagement design of end face gear 1 4044 and end face gear 2 409, combined with the reset of spring 410, and the drive of a single servo motor 402 combined with the micro electric push rod 4041 to change the transmission direction, can realize two modes of independent adjustment on the left and right sides. The operator only needs to control the forward and reverse rotation of the motor to accurately and conveniently adjust the height of the laser receivers 7 on both sides. The adjustment method is flexible and simple, and the adjustment process is intuitive, accurate and reliable. Specifically, when the height of the left height adjustment component 3 needs to be adjusted, the miniature electric push rod 4041 pushes the connecting seat 4042 and the displacement rod 4043 to move axially to the left side of the height adjustment component 3, so that the left end face gear 1 4044 engages with the end face gear 2 409 on the left transmission rod 406. At this time, the right end face gear 1 4044, which remains disengaged, maintains a distance from the end face gear 2 409. Simultaneously, the output shaft of the servo motor 402 rotates in the forward direction, driving the bevel gear 1 403 to mesh with the bevel gear 2 4047, thereby driving the limiting sleeve 4046 and the displacement rod 4043 connected to it via the limiting protrusion 4045 to rotate together. This drives the left end face gear 1 4044 to rotate. At this time, with the push compensation of the spring 410, the push... The moving end face gear 409 meshes with the rotating end face gear 4044. Through the limiting rod 408 and the limiting groove 4061 of the transmission rod 406, the left transmission rod 406 and bevel gear 407 can be driven to rotate. Through the meshing transmission of bevel gear 407 and reduction bevel gear disk 303, the screw screw 302 is driven to rotate while the speed is reduced, thereby driving the left height adjustment component 3 to adjust. When adjusting the right height adjustment component 3, the micro electric push rod 4041 only needs to retract the piston rod to make the two end face gears on the right mesh and the two end face gears on the left disengage. The above process simplifies the power system, reduces the equipment manufacturing cost and potential failure points, and has a fast adjustment response speed, realizing independent adjustment of the laser receivers 7 on both sides.

[0024] Furthermore, in a preferred embodiment, such as Figure 8 , Figure 9 As shown, the cleaning component 5 includes a support frame 501 fixed to the outer wall of the protective housing base 301. A storage shell 503 is fixed to the side wall of the support frame 501 facing the laser receiver 7. A spraying mechanism 502 for spraying the window of the laser receiver 7 is provided below the storage shell 503. A wiping mechanism 504 for wiping the laser receiver 7 is provided inside the storage shell 503. A quick-release mechanism 505 for facilitating cleaning of the wiping mechanism 504 is provided at the top of the wiping mechanism 504. Preferably, the spraying mechanism 502 includes a threaded cap 5021 fixed to the top of the support frame 501 and a micro pump 5022. The bottom end of the threaded cap 5021 is threadedly connected to a liquid storage tank 5024. The water inlet of the micro pump 5022 is connected to a water suction hose, which is located inside the liquid storage tank 5024. The outlet of the micro pump 5022 is equipped with a nozzle 5023, and the nozzle of the nozzle 5023 faces the laser receiver 7. Based on the above structure, the micro pump 5022 can be instructed to pump liquid from the storage tank 5024 via the control terminal, and spray it directionally onto the window of the laser receiver 7 through the nozzle 5023 to pre-soften and dissolve stubborn stains such as dried mud and oil. At the same time, it works in conjunction with the wiping mechanism 504 to achieve more efficient cleaning. The storage tank 5024 and the threaded cap 5021 are connected by threads, which can be quickly unscrewed to replenish the cleaning fluid or replace it, ensuring continuous operation capability.

[0025] Furthermore, in a preferred embodiment, such as Figure 10 As shown, the wiping mechanism 504 includes a synchronous wheel 5041 symmetrically rotatably installed at the bottom of the inner part of the storage shell 503. A water-absorbing cotton synchronous belt 5042 is connected between the two synchronous wheels 5041. U-shaped strips 5043 are symmetrically arranged at the bottom of the inner part of the storage shell 503. An arc-shaped spring piece 5044 is fixed between the two U-shaped strips 5043. The outer arc surface of the arc-shaped spring piece 5044 abuts against the inner side wall of the water-absorbing cotton synchronous belt 5042. Based on the above structure, when the two synchronous wheels 5041 rotate, they drive the absorbent cotton synchronous belt 5042 to rotate. The arc-shaped spring sheet 5044 provides continuous elastic pressure to the absorbent cotton synchronous belt 5042, ensuring that it fits tightly with the window of the laser receiver 7. At the same time, it can adapt to slight size changes, ensuring that the wiping effect is uniform and reliable. Preferably, each laser receiver 7 has an arc-shaped guide block 701 fixed to its bottom end. When the laser receiver 7 descends, the arc-shaped guide block 701 at its bottom, together with the arc-shaped spring piece 5044, can guide the absorbent cotton synchronous belt 5042 to ensure that the absorbent cotton synchronous belt 5042 fits against the window of the laser receiver 7 and ensures the normal operation of the wiping mechanism 504.

[0026] Furthermore, in a preferred embodiment, the quick-release mechanism 505 includes a slide housing 5051 vertically fixed to the side wall of the storage shell 503, a slide 5052 slidably connected to the inner side wall of the slide housing 5051, a locking bolt 5053 threadedly connected to the outer side wall of the slide 5052, a cover plate 5054 fixedly connected to the lower surface of the top end of the slide 5052, and a through hole 5055 corresponding to the position of the synchronous pulley 5041 on the upper part of the cover plate 5054; Based on the above structure, by loosening the locking bolt 5053, the cover plate 5054 and the slide 5052 can be lifted along the slide housing 5051, so that the absorbent cotton synchronous belt 5042 and the synchronous pulley 5041 are fully exposed, which facilitates quick replacement of worn absorbent cotton or overall maintenance, and reduces the difficulty of equipment maintenance.

[0027] Furthermore, in a preferred embodiment, such as Figure 11As shown, the transmission assembly 6 includes a transmission wheel 601 that is sleeved and fixed to the outer wall of the transmission rod 406, and a fixing frame 602 that is fixed to the lower surface of the storage shell 503. The side wall of the fixing frame 602 is rotatably connected to a rotating shaft 603. The two ends of the rotating shaft 603 are respectively fixed to a bevel gear 604 and a transmission wheel 605. The transmission wheel 601 and the transmission wheel 605 on the same side are connected by a transmission belt. The bevel gear 604 is meshed with a bevel gear 606. The bevel gear 606 is fixedly installed at the bottom end of the synchronous pulley 5041. Based on the above structure, the transmission rod 408 drives the transmission wheel 601 to rotate, which in turn drives the rotating shaft 603 and the bevel gear 604 to rotate through the transmission belt and the transmission wheel 605. The bevel gear 606 then drives the synchronous wheel 5041 to rotate through the meshing transmission. When the switchable unidirectional drive assembly 4 is working, the power will be synchronously transmitted to the cleaning assembly 5 on the same side through the transmission assembly 6, regardless of which side is driven. Therefore, whenever the height of the laser receiver 7 is adjusted, the rotation of the transmission rod 408 will synchronously drive the absorbent cotton synchronous belt 5042 of the wiping mechanism 504 to operate, automatically wiping the window of the laser receiver 7, realizing "adjustment equals cleaning". No additional power or operation steps are required. It is efficient and intelligent, ensuring that the key sensors are in the best working state after each setting, greatly improving the continuity of operation and operating efficiency. At the same time, if dust or concrete slurry splashes during the leveling operation, covering the window of the laser receiver 7, the height can be adjusted again to clean and wipe the window. After cleaning, it can be reset.

[0028] Furthermore, in a preferred embodiment, such as Figure 1 As shown, the control terminal of the leveling machine body 1 is electrically connected to the servo motor 402, the micro electric push rod 4041, and the micro pump 5022. The operator can centrally control the height adjustment of the laser receiver 7 and the start and stop of the spray cleaning from the cab or via remote control, realizing "human-machine separation" or remote control, which improves construction safety and operating comfort.

[0029] Based on the above structure, the working principle of the present invention is as follows: S1. After the concrete is poured and before the ground leveling is carried out, set up a tripod and a laser transmitter at the construction site, adjust the height and level of the laser transmitter to ensure that the laser emitted by the laser transmitter is consistent with the flatness of the ground, and then lock the two laser receivers 7 to the top of the lifting hollow rods 306 on both sides of the leveling machine, and then adjust the height of the laser receivers 7 on both sides so that the laser receivers 7 can receive the laser signal from the laser transmitter, thereby completing the equipment debugging and positioning. When adjusting the height of one side of the laser receiver 7, the miniature electric push rod 4041 pushes the connecting seat 4042 and the displacement rod 4043 to move axially to the left side of the height adjustment component 3, so that the left end face gear 1 4044 engages with the end face gear 2 409 on the left transmission rod 406. At this time, the right end face gear 1 4044, which remains disengaged, maintains a distance from the end face gear 2 409. The output shaft of the servo motor 402 rotates in the forward direction, driving the bevel gear 1 403 to mesh with the bevel gear 2 4047, thereby driving the limiting sleeve 4046 and the displacement rod 4043 connected to it via the limiting protrusion 4045 to rotate together, which in turn drives the left end face gear 1 4044 to rotate. 4. Rotation: At this time, with the push compensation of spring 410, the second end face gear 409 is pushed to mesh with the rotating first end face gear 4044. Through the limiting cooperation of the limiting rod 408 and the limiting groove 4061 of the transmission rod 406, the left transmission rod 406 and bevel gear 407 can be driven to rotate. Through the meshing transmission of bevel gear 407 and reduction bevel gear disk 303, the deceleration is achieved while driving the threaded screw 302 to rotate, which can drive the left height adjustment component 3 to adjust the height of the left laser receiver 7. When adjusting the right laser receiver 7, the micro electric push rod 4041 only needs to retract the piston rod to make the two end face gears on the right mesh and the two end face gears on the left disengage. During height adjustment, when the laser receiver 7 is raised or lowered to the position corresponding to the micro pump 5022, the micro pump 5022 can be instructed by the control terminal to pump liquid from the replaceable liquid tank 5024 and spray it directionally onto the window of the laser receiver 7 through the nozzle 5023. At the same time, during height adjustment, the rotation of the transmission rod 408 will drive the transmission wheel 601 to rotate. Through the transmission belt and the transmission wheel 605, the rotating shaft 603 and the bevel gear 604 will be rotated. Through the meshing transmission of the bevel gear 606, the synchronous wheel 5041 will be rotated, which will drive the absorbent cotton synchronous belt 5042 to rotate. In conjunction with the raising and lowering of the laser receiver 7, the window of the laser receiver 7 will be wiped thoroughly. The arc-shaped spring 5044 provides continuous elastic pressure to the absorbent cotton synchronous belt 5042 to ensure that it fits tightly against the window of the laser receiver 7, while also being able to adapt to slight size changes to ensure wiping effect. Based on the above, once the equipment is in place using the aforementioned method, a "preventative" wipe can be performed on the laser receiver window 7. This "adjustment as maintenance" mechanism ensures that the key sensors are in optimal working condition after each setting, greatly improving the continuity and efficiency of operations. S2. During concrete floor leveling, the leveling machine automatically adjusts the height and level of the scraper 202 via the lifting drive mechanism 201 according to the laser signal to achieve precise floor leveling. If dust or concrete slurry splashes during the floor leveling process, the laser receiver 7 window can be covered and the machine can be stopped. The height adjustment action can then be performed again to clean the window of the laser receiver 7. After that, the height of the laser receiver 7 can be readjusted and reset before the floor leveling work can continue.

[0030] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. A concrete floor leveling machine, comprising a leveling machine body, characterized in that, The front end of the leveling machine body is connected to the main body of the leveling machine; The main body of the leveling machine includes a lifting drive mechanism. From back to front, a leveling beam device, a spiral mixing device, and a vibrating device are installed sequentially at the bottom of the lifting drive mechanism. Scrapers are connected to the bottom of the movable ends on both sides of the leveling beam device. The scrapers are close to the body of the leveling machine. Both sides of the scraper are provided with height adjustment components, and laser receivers are installed at the top of each height adjustment component. A switchable one-way drive component for adjusting the height of the two height adjustment components is provided above the scraper. A cleaning component for cleaning the laser receiver is provided on the side of each height adjustment component. The cleaning components on both sides are connected to the switchable one-way drive component through a transmission component.

2. A concrete floor leveling machine according to claim 1, characterized in that, The height adjustment assembly includes a protective shell base fixed to the side wall of the scraper. A threaded screw is rotatably connected to the bottom of the protective shell base. A reduction bevel gear is sleeved and fixed to the bottom of the threaded screw. A slide rod is also fixed to the bottom of the protective shell base. A connecting plate is slidably connected to the top of the slide rod. A lifting hollow rod is fixed to the upper surface of the connecting plate. The inner side wall of the lifting hollow rod is threaded to the outer side wall of the threaded screw. A bellows hose is fixed between the connecting plate and the protective shell base. The threaded screw and the slide rod are both located inside the bellows hose.

3. A concrete floor leveling machine according to claim 2, characterized in that, The switchable unidirectional drive assembly includes a protective shell fixed to the upper surface of the scraper and bearing seats. Several bearing seats are located on both sides of the protective shell. A servo motor is fixedly installed on the rear side wall of the protective shell. A bevel gear is fixedly connected to the output end of the servo motor through the side wall of the protective shell. A transmission rod is rotatably connected between two bearing seats on the same side. A limit groove is opened on the end face of the transmission rod near the protective shell. A limit rod is slidably limited on the inner wall of the limit groove. An end face gear is fixedly connected to the end face of the limit rod near the protective shell. A spring is sleeved on the outside of the limit rod. A bevel gear is fixedly connected to the other end of the transmission rod through the side wall of the adjacent protective shell base. The bevel gear meshes with a reduction bevel gear disk. A unidirectional adjustment mechanism is provided inside to switch the rotation of the transmission rods on both sides.

4. A concrete floor leveling machine according to claim 3, characterized in that, The unidirectional adjustment mechanism includes a miniature electric push rod fixedly installed on the inner wall of the front of the protective shell, and a limiting sleeve rotatably connected to the side wall of the protective shell; the piston rod of the miniature electric push rod is arranged along the length of the transmission rod, the movable end of the miniature electric push rod is fixedly connected to a connecting seat, the side wall of the connecting seat is rotatably connected to a displacement rod, the two ends of the displacement rod are respectively fixedly connected to the two sides of the protective shell with end face gears one, the two sides of the end face gears one mesh with the adjacent end face gears two, the outer side wall of the displacement rod is provided with a limiting protrusion, the outer wall of the limiting protrusion is slidably connected to the inner side wall of the limiting sleeve, the outer side of the limiting sleeve is fixedly sleeved with a bevel gear two, the bevel gear two meshes with the bevel gear one.

5. A concrete floor leveling machine according to claim 4, characterized in that, The cleaning assembly includes a support frame fixed to the outer wall of the protective housing base. A storage shell is fixed to the side wall of the support frame facing the laser receiver. A spraying mechanism for spraying water onto the laser receiver window is provided below the storage shell. A wiping mechanism for wiping the laser receiver is provided inside the storage shell. A quick-release mechanism is provided at the top of the wiping mechanism.

6. A concrete floor leveling machine according to claim 5, characterized in that, The spraying mechanism includes a threaded cap fixed to the top of the support frame and a micro pump. The bottom end of the threaded cap is threadedly connected to a liquid storage tank. The water inlet of the micro pump is connected to a water suction hose, which is located inside the liquid storage tank. The outlet of the micro pump is equipped with a nozzle, and the nozzle of the nozzle faces the laser receiver.

7. A concrete floor leveling machine according to claim 5, characterized in that, The wiping mechanism includes symmetrically rotating synchronous wheels installed at the bottom of the inner part of the storage shell. A water-absorbing cotton synchronous belt is connected between the two synchronous wheels. U-shaped strips are symmetrically arranged at the bottom of the inner part of the storage shell. An arc-shaped spring is fixed between the two U-shaped strips. The outer arc surface of the arc-shaped spring abuts against the inner sidewall of the water-absorbing cotton synchronous belt.

8. A concrete floor leveling machine according to claim 5, characterized in that, The quick-release mechanism includes a sliding housing that is vertically fixed to the side wall of the storage shell. A slide frame is slidably connected to the inner side wall of the sliding housing. A locking bolt is threaded through the outer side wall of the slide frame. A cover plate is fixed to the lower surface of the top of the slide frame. A through hole corresponding to the position of the synchronous pulley is opened on the cover plate.

9. A concrete floor leveling machine according to claim 7, characterized in that, The transmission assembly includes a transmission wheel one that is sleeved and fixed to the outer wall of the transmission rod, and a fixing frame fixed to the lower surface of the storage shell. A rotating shaft is rotatably connected through the side wall of the fixing frame. A bevel gear three and a transmission wheel two are respectively fixed to the two ends of the rotating shaft. The transmission wheel one and the transmission wheel two on the same side are connected by a transmission belt. The bevel gear three is meshed with a bevel gear four, and the bevel gear four is fixedly installed at the bottom end of the synchronous pulley.

10. A concrete floor leveling machine according to claim 6, characterized in that, The control terminals of the leveling machine body are all electrically connected to the servo motor, the mini electric push rod, and the mini pump.

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