Concrete laser leveling machine and construction method

Abstract

The invention relates to the technical field of cement concrete ground leveling, in particular to a concrete laser leveling machine and a construction method.The concrete laser leveling machine comprises a vehicle-mounted platform, a telescopic arm installed on the vehicle-mounted platform, a cantilever fixedly connected to the front end of the telescopic arm and a base movably connected to the lower portion of the cantilever, and a vibration plate is arranged at the bottom of the base. The concrete leveling machine further comprises a thickened scraper plate fixedly connected to the rear side of the base, the thickened scraper plate is composed of an L-shaped plate in the middle and square end heads at the two ends, temporary storage barrels are fixedly connected to the rear side walls of the square end heads, and the situation that concrete is accumulated too high and falls onto the leveling machine or even falls onto the concrete ground which is leveled on the front side is effectively avoided. And water and cement are prevented from flowing away, and the conditions of aggregate exposure and the like are avoided. The flow of the concrete in the runner groove is driven by the rotation of the flow guide impeller, and the rotation direction of the flow guide impeller can be controlled, so that the flow direction of the concrete can be controlled as required.

Description

Technical Field

[0001] The invention relates to the technical field of cement concrete floor leveling, and in particular to a concrete laser leveling machine and a construction method. Background Art

[0002] At present, some factories, warehouses, shopping malls, stadiums and other places have large areas of cement concrete floors, and people have higher and higher requirements for floor quality such as strength, flatness, and levelness. The laser leveling machine can control the leveling head in real time through the laser receiver, so that the concrete floor can be leveled with high precision.

[0003] At present, when common laser leveling machines are used to process concrete bases, they generally pour the concrete into blocks on the ground to form a concrete base. Then the laser leveling machine pulls the scraper from front to back, pushing the excess concrete backward to achieve pre-leveling of the concrete base. Then the vibration plate in front of the scraper vibrates at a high frequency and low amplitude to beat the gaps between the concrete to an extremely small level, thereby achieving the effect of high-precision leveling of the cement floor.

[0004] In actual operation, it is better to pour more concrete rather than less (too much concrete can be scraped away and used elsewhere, but too little concrete will cause the concrete base to sag, requiring re-construction). Therefore, workers always pour too much concrete to avoid extra work. Therefore, when the scraper of the laser leveling machine is pulled, concrete is easily accumulated on the back of the scraper.

[0005] Since cement concrete is composed of raw materials such as aggregate, cement, and water. Aggregates can be divided into coarse aggregate and fine aggregate. The diameter of coarse aggregate particles is generally greater than 5mm, and crushed stone and pebbles are commonly used. Among them, water and cement are much more fluid than aggregates. Therefore, when the scraper moves the accumulated concrete, water and cement are more likely to flow away, leaving aggregates. This causes uneven distribution of aggregates. In more serious cases, aggregates may be exposed due to water loss, affecting the aesthetics of the concrete floor.

[0006] Moreover, the concrete piled up behind the scraper may be too high in some places, higher than the scraper, causing the concrete to fall onto the leveler, affecting the balance of the leveler and thus the leveling effect. The excessively high concrete may even slide onto the concrete floor that has been leveled in front, requiring additional processing, causing unnecessary troubles for the workers. Summary of the invention

[0007] In view of this, the purpose of the present invention is to propose a concrete laser leveling machine and a construction method to solve the problem in the prior art that too much concrete is easily accumulated on the rear side of the leveling machine scraper, which in turn brings about a series of problems that affect the construction effect.

[0008] Based on the above purpose, the present invention provides a concrete laser leveling machine, including a suspension beam, the suspension beam is arranged at the front end of the vehicle-mounted mechanism, and the laser leveling machine also includes:

[0009] A base movably connected to the bottom of the suspension beam, wherein a vibration plate is provided at the bottom of the base, and a driving member for driving the vibration plate to vibrate up and down at a high frequency is also provided in the base;

[0010] A thickened scraper fixedly connected to the rear side of the base, the thickened scraper is composed of an L-shaped plate in the middle and square end heads at both ends, a flow channel groove is opened on the bottom plate of the L-shaped plate, and the outer plate of the L-shaped plate is an inwardly inclined bevel plate, and an outflow channel running through the left and right is arranged in the square end head, and a sealer is also arranged at the outer end of the outflow channel;

[0011] A temporary storage bucket is fixedly connected to the rear side wall of the square end head, an inner channel is provided at the connection between the square end head and the temporary storage bucket, the temporary storage bucket is connected to the outflow channel through the inner channel, a sealing plate is connected to the front and rear sides of the inner channel respectively, and a concrete inlet is provided on both sealing plates;

[0012] The transfer wheel located between the two sealing plates is used to transfer concrete to the temporary storage barrel. The transfer wheel is rotatably connected in the inner channel, and an inwardly inclined cut is opened on the arc edge of the transfer wheel.

[0013] Furthermore, a pair of hydraulic lifting cylinders are fixedly connected to the suspension beam, the base is fixedly connected to the output shaft of the hydraulic lifting cylinder, and the pipes connected between the base and the suspension beam are all hoses. A plurality of nozzles are also provided on the front side wall of the base for spraying curing agent to accelerate the solidification of the cement pavement. The nozzles are connected to the booster pump and the curing agent storage tank through the pipes in the base.

[0014] Furthermore, a concrete discharge port is provided on the bevel plate on the outer side of the L-shaped plate, the bottom of the concrete discharge port is flush with the bottom of the flow channel, and a plugging piece is provided in the concrete discharge port, the plugging piece is slidably connected to the L-shaped plate, and the inner end of the plugging piece is fixedly connected to a telescopic rod, and the other end of the telescopic rod is connected to the output shaft of the hydraulic cylinder in the base.

[0015] Furthermore, six or eight groups of guide vanes are provided in the flow channel groove, and the guide vanes are rotatably connected to the inner plate of the L-shaped plate. A guide motor is also provided in the base, and the guide vanes are fixedly connected to the output shaft of the guide motor.

[0016] Furthermore, the height of the bevel plate is 5-10 cm higher than the bottom of the flow channel.

[0017] Furthermore, the inner end of the temporary storage barrel is fixedly connected to a rotating motor, the output shaft of the rotating motor is fixedly connected to a connecting rod, and the other end of the connecting rod is fixedly connected to the transfer wheel.

[0018] Furthermore, the connecting rod is rotatably connected to the sealing plate at the rear side, and a plurality of stirring blades are fixedly connected to the connecting rod. An opening is provided at the bottom of the temporary storage barrel, and a bottom door is provided at the opening.

[0019] Furthermore, the sealing plate on the front side of the inner channel is fixedly connected in the inner channel, while the sealing plate on the rear side of the inner channel is rotatably connected in the inner channel, and the concrete inlet on the front sealing plate is located at the bottom of the inner channel.

[0020] Furthermore, a connecting groove is provided on the sealing plate at the rear side of the inner channel, a telescopic motor is fixedly connected to the connecting rod, and a fixed plug rod matching the connecting groove is connected to the output shaft of the telescopic motor.

[0021] A construction method of a concrete laser leveling machine comprises the following steps:

[0022] Step 1: Preparation

[0023] First, divide the land into blocks, pour enough concrete on each block and make it as flat as possible. Then move the vehicle-mounted platform to one of the blocks. After the vehicle-mounted platform stops, extend the telescopic arm so that the cantilever beam is at the front end of the block.

[0024] Step 2: Laser leveling

[0025] According to the detection results of the laser detection instrument, the hydraulic lifting cylinder drives the base to descend to the appropriate position, and then the telescopic arm begins to retract, moving the base and the thickened scraper backwards. The thickened scraper pushes the excess concrete backwards to achieve pre-leveling of the concrete base, while the vibration plate under the base performs high-frequency vibration to achieve leveling;

[0026] Step 3: Concrete accumulation treatment

[0027] When the thickened scraper moves backward, when the concrete piled behind it is higher than the outer plate of the L-shaped plate, the concrete will automatically fall into the flow channel. At this time, the guide motor is started to drive the guide impeller to rotate, promoting the flow of concrete in the flow channel.

[0028] Step 4: Concrete treatment selection

[0029] If both sides of the plot are not leveled, the guide vanes on the left and right sides rotate to the left and right sides respectively, so that the concrete is diverted in the flow channel and flows to the plots on both sides through the outflow channel;

[0030] If one side of the plot has been leveled and the other side is not leveled, all the guide vanes rotate toward the unleveled side, so that all the concrete flows to the unleveled side;

[0031] If both sides of the plot have been leveled, the sealers on the left and right square ends block the two outlets of the outflow channels, and the guide vanes on the left and right sides rotate to the left and right sides respectively, so that all the concrete flows into the two outflow channels. At the same time, the transfer wheel rotates to transfer the concrete in the outflow channel to the temporary storage bucket;

[0032] Step 5: Rapid solidification

[0033] As the base and the thickened scraper move backward, the nozzles on the front side of the base spray curing agent to quickly solidify the cement pavement.

[0034] Step 6: Cleaning

[0035] After the leveling is completed, clean the components in the laser leveling machine, especially the flow channel, outflow channel, concrete inlet and temporary storage barrel.

[0036] Beneficial effects of the present invention: 1. The thickened scraper is designed to be higher than a normal scraper, and the middle main body of the thickened scraper is designed to be an L-shaped plate, which effectively prevents concrete from falling onto the leveling machine due to excessive accumulation, or even sliding onto the concrete floor that has been leveled in front.

[0037] 2. A flow channel is opened on the bottom plate of the L-shaped plate. The accumulated concrete that is higher than the bevel plate will fall into the flow channel. Then, according to the leveling conditions of the plots on both sides, the accumulated concrete will be transported to the left, right or temporary storage bucket in advance. This prevents the concrete from being piled up too high, effectively prevents the water and cement from flowing away, and avoids the exposure of aggregates.

[0038] 3. The flow channel is flat, and the flow of concrete in the flow channel is driven by the rotation of the guide vane, and the rotation direction of the guide vane can be controlled, so that the flow direction of the concrete can be controlled as needed. In addition, a sealer is set as a safety to prevent the concrete from flowing to places where workers do not want.

[0039] 4. A temporary storage barrel is set up. When the land on both sides has been leveled and concrete cannot be discharged, excess concrete can be temporarily stored. Two front and rear concrete inlets with height difference (adjustable) and transfer wheels with cutouts are designed. The simple structure can realize the transfer of concrete from a low place to a high place, making the installation position of the temporary storage barrel more flexible and the volume can be set larger.

[0040] 5. Two sealing plates are set, and the sealing plate on the rear side is rotatably connected to the inner channel. When collecting concrete, the upper connecting groove can be connected by a fixed plug rod, and then the sealing plate on the rear side can be driven to rotate, so that the concrete inlet on the sealing plate on the rear side is located at the top of the inner channel, so that there is a height difference between the front and rear concrete inlets, which prevents the concrete from flowing out. When releasing concrete, the sealing plate on the rear side can be driven to rotate again, so that the concrete inlet on the sealing plate on the rear side is also located at the bottom of the inner channel, so that the front and rear concrete inlets are flush, which is convenient for concrete to flow out. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0042] Figure 1 It is a schematic diagram of the overall structural principle of the device of the present invention.

[0043] Figure 2 It is a schematic structural diagram of the thickened scraper side of the device of the present invention.

[0044] Figure 3 It is a side view of the device of the present invention.

[0045] Figure 4 Schematic diagram of the internal driving structure of the guide impeller in the device of the present invention.

[0046] Figure 5 It is a schematic diagram of the structure of the temporary storage barrel in the device of the present invention.

[0047] Figure 6 It is a cross-sectional view of the temporary storage barrel and the inner channel in the device of the present invention.

[0048] Figure 7 Schematic diagram of the internal structure of the temporary storage barrel in the device of the present invention.

[0049] Figure 8 for Figure 2 Enlarged view of part A.

[0050] Fig. 9 for Figure 2 Enlarged view of part B.

[0051] The markings in the figure are:

[0052] 101. vehicle-mounted platform, 102. telescopic arm, 103. cantilever beam, 104. hydraulic lifting cylinder, 105. base, 106. vibration plate, 107. thickened scraper, 108. nozzle, 109. L-shaped plate, 110. square end, 111. flow channel, 112. bevel plate, 113. outflow channel, 114. inner channel, 115. sealer, 116. guide impeller, 117. guide motor, 118. temporary storage barrel, 119. bottom door, 120. transfer wheel, 121. rotating motor, 122. connecting rod, 123. stirring blade, 124. sealing plate, 125. connecting groove, 126. telescopic motor, 127. fixed plug rod, 128. movable block, 129. telescopic rod. DETAILED DESCRIPTION

[0053] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0054] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0055] A first aspect of the present invention, as Figure 1 , Figure 2 and Figure 3 As shown, it includes a vehicle-mounted platform 101 for carrying and transferring, and the main part of the laser leveling machine is installed on the vehicle-mounted platform 101 through a telescopic arm 102. The telescopic arm 102 is a multi-stage telescopic mechanical arm with a large range of motion.

[0056] The main part of the laser leveling machine mainly consists of a cantilever beam 103 fixedly connected to the front end of the telescopic arm 102, a base 105 movably connected to the bottom of the cantilever beam 103, and a thickened scraper 107 fixedly connected to the rear side of the base 105. A laser detection instrument is also set at the front end of the cantilever beam 103 to detect the flatness of the concrete pavement and adjust the height of the base 105 at all times. The base 105 and the cantilever beam 103 are mainly connected through the hydraulic lifting cylinder 104 and the lifting rod output shaft of the hydraulic lifting cylinder 104. The hydraulic lifting cylinder 104 is provided with a pair and fixedly connected to the left and right ends of the cantilever beam 103. The base 105 is fixedly connected to the output shaft of the hydraulic lifting cylinder 104, and the pipes connecting the base 105 and the cantilever beam 103 are all hoses. Similarly, the pipes connecting the cantilever beam 103 and the telescopic arm 102 and the vehicle-mounted platform 101 are also hoses.

[0057] Preferably, a plurality of nozzles 108 are provided on the front side wall of the base 105 for spraying curing agent to accelerate the solidification of the cement pavement, and the nozzles 108 are connected with the booster pump and the curing agent storage tank through the pipeline in the base 105. The booster pump and the curing agent storage tank can be directly arranged on the base 105, or on the suspension beam 103 or the vehicle-mounted platform 101.

[0058] A vibration plate 106 is provided at the bottom of the base 105, a part of which is located inside the bottom of the base 105 and is slidably connected to the base 105, and a driving member, such as a vibration motor, is provided inside the base 105 to drive the vibration plate 106 to vibrate up and down at a high frequency. The vibration motor drives the vibration plate 106 to vibrate at a high frequency and a small amplitude, thereby beating the gaps between the concrete to a very small level, and then cooperates with the calibration of the laser detection instrument to achieve the effect of high-precision leveling of the cement floor.

[0059] The point is that Figure 2 , Figure 4 and Figure 8 As shown, the thickened scraper 107 is fixedly connected to the rear side of the base 105 through a plurality of connecting plates. The thickened scraper 107 is composed of an L-shaped plate 109 in the middle and square end heads 110 at both ends. A flow channel groove 111 is provided on the bottom plate of the L-shaped plate 109, and the outer plate of the L-shaped plate 109 is an inwardly inclined bevel plate 112, and a left-right through-flow channel 113 is provided in the square end head 110. The bottom end surface of the outflow channel 113 is flush with the bottom end surface of the flow channel groove 111. In addition, a sealer 115 is provided at the outer end of the outflow channel 113 of the two square end heads 110. The sealer 115 is composed of a driving member and a slide plate. The slide plate is slidably connected to the outer wall of the square end head 110. The driving member drives the slide plate to slide up and down to achieve the sealing effect on the outer port of the outflow channel 113. The driving member can be electrically driven, such as a motor; or it can be pneumatic or hydraulically driven, such as a cylinder or a hydraulic cylinder.

[0060] The thickened scraper 107 is designed to be higher than a normal scraper, and the middle main body of the thickened scraper 107 is designed as an L-shaped plate 109, which effectively prevents concrete from falling onto the leveling machine due to excessive accumulation, or even sliding onto the concrete floor that has been leveled in the front side.

[0061] Preferably, the height of the bevel plate 112 is 5-10 cm higher than the bottom of the flow channel 111, and the bottom end surfaces of the flow channel 111 and the outflow channel 113 are horizontal, so as to avoid uncontrolled flow of concrete in the flow channel 111 and the outflow channel 113. Therefore, in order to be able to control the flow direction of concrete in the flow channel 111 as required, six or eight groups of guide vanes 116 are arranged in the flow channel 111, and these guide vanes 116 are equidistantly distributed in the flow channel 111, so that there are three or four groups of guide vanes 116 on the left and right sides of the flow channel 111. In addition, the guide vanes 116 are rotatably connected to the inner plate of the L-shaped plate 109, and a guide motor 117 is also arranged in the base 105, and an extension rod is fixedly connected to the output shaft of the guide motor 117, and the extension rod passes through the connecting plate between the thickened scraper 107 and the base 105, and is fixedly connected to the guide vane 116.

[0062] The flow of concrete in the flow channel 111 is driven by the rotation of the guide vane 116, and the rotation direction of the guide vane 116 is controllable, so that the flow direction of the concrete can be controlled as needed.

[0063] Generally, there are two control modes. One is that all concrete needs to be transferred to one side of the thickened scraper 107, then all the guide vanes 116 rotate toward that side, driving all the concrete to flow to the plot on that side. In order to prevent the concrete from flowing back to the plot on the other side of the thickened scraper 107, the outer port of the outflow channel 113 on the other side can be blocked by the sealer 115 on the square end 110 on the other side.

[0064] Another method is to transfer concrete to both sides of the thickened scraper 107 at will, and then the guide vanes 116 on the left and right sides rotate to the left and right sides respectively, so that the concrete is diverted in the flow channel 111 and flows to the plots on both sides through the two outflow channels 113.

[0065] On the other hand, Figure 5 , Figure 6 and Figure 8 As shown, if both sides of the construction site have been leveled, concrete cannot be transferred to either side. Therefore, a temporary storage bucket 118 is fixedly connected to the rear side wall of the square end 110, and when both sides of the site have been leveled and concrete cannot be discharged, excess concrete can be temporarily stored.

[0066] An inner channel 114 is provided at the connection between the square end 110 and the temporary storage bucket 118, and the temporary storage bucket 118 is connected to the outflow channel 113 through the inner channel 114. A sealing plate 124 is connected to the front and rear sides of the inner channel 114, and a concrete inlet is provided on each of the two sealing plates 124, and the front concrete inlet is located at the lower side of the sealing plate 124, and the rear concrete inlet is located at the upper side of the sealing plate 124. To store excess concrete, the concrete inlets on the front and rear sealing plates 124 of the inner channel 114 need to be adjusted to have a height difference, preferably a maximum height difference.

[0067] In addition, the sealing plate 124 at the front side of the inner channel 114 is fixedly connected in the inner channel 114, and the sealing plate 124 at the rear side of the inner channel 114 is rotatably connected in the inner channel 114, and the concrete inlet on the front sealing plate 124 is located at the bottom of the inner channel 114. The sealing plate 124 at the rear side of the inner channel 114 is also provided with a connecting groove 125, and the connecting rod 122 is also fixedly connected to a telescopic motor 126, and the output shaft of the telescopic motor 126 is connected to a fixed plug rod 127 that matches the connecting groove 125.

[0068] When collecting concrete, the upper connection slot 12 can be connected by fixing the plug rod 127, and then the rear sealing plate 124 can be driven to rotate, so that the concrete inlet on the rear sealing plate 124 is located at the top of the inner channel 114, so that there is a height difference between the front and rear concrete inlets, thereby preventing the concrete from flowing out. When discharging concrete, the rear sealing plate 124 can be driven to rotate again, so that the concrete inlet on the rear sealing plate 124 is also located at the bottom of the inner channel 114, so that the front and rear concrete inlets are flush, thereby facilitating the concrete to flow out.

[0069] Since a concrete discharge port is also provided on the bevel plate 112 outside the L-shaped plate 109, the bottom of the concrete discharge port is flush with the bottom of the flow channel 111), and a plugging piece 128 is also provided in the concrete discharge port. The plugging piece 128 is slidably connected to the L-shaped plate 109, and the inner end of the plugging piece 128 is fixedly connected to a telescopic rod 129, and the other end of the telescopic rod 129 is connected to the output shaft of the hydraulic cylinder in the base 105.

[0070] Therefore, after the concrete flows out, the hydraulic cylinder first drives the plugging member 128 to slide inward to open the concrete outlet, and then controls the guide vane 116 to rotate toward the concrete outlet, driving all the concrete to flow to the concrete outlet position, and finally flows out.

[0071] Preferably, the concrete discharge port is located in the middle of the L-shaped plate 109 .

[0072] In addition, the transfer wheel 120 between the two sealing plates 124 is used to transfer concrete to the temporary storage barrel 118. The transfer wheel 120 is rotatably connected to the inner channel 114, and an inwardly inclined cut is opened on the arc edge of the transfer wheel 120. By designing two front and rear concrete inlets with height difference (adjustable) and the transfer wheel 120 with a cut, a simple structure can realize the transfer of concrete from a low place to a high place, making the installation position of the temporary storage barrel 118 more flexible and the volume can also be set larger.

[0073] When the transfer wheel 120 rotates to the point where the cutout of the transfer wheel 120 is located at the bottom, as long as the concrete in the outflow channel 113 does not exceed the concrete inlet on the front side, the space in the cutout of the transfer wheel 120 will be automatically filled. Therefore, the transfer wheel 120 continues to rotate and the concrete in the cutout space will be transferred upward to the concrete inlet position on the rear side. Because the cutout of the transfer wheel 120 is inclined inward, the concrete will slide through the concrete inlet on the rear side into the temporary storage barrel 118.

[0074] Preferably, a rotating motor 121 is fixedly connected to the inner end of the temporary storage barrel 118, and a connecting rod 122 is fixedly connected to the output shaft of the rotating motor 121, and the other end of the connecting rod 122 is fixedly connected to the transfer wheel 120. The connecting rod 122 is also rotatably connected to the sealing plate 124 on the rear side, and a plurality of stirring blades 123 are also fixedly connected to the connecting rod 122. When the connecting rod 122 rotates, the stirring blades 123 rotate with it (under the stirring state, the telescopic motor 126 drives the fixed plug 127 to disengage from the connecting groove 125), so that the concrete in the temporary storage barrel 118 can be stirred to prevent the concrete from solidifying. In addition, an opening is provided at the bottom of the temporary storage barrel 118, and a bottom door 119 is provided at the opening. After the leveling construction is completed, the bottom door 119 can be opened, and the concrete can be taken out through the opening at the bottom of the temporary storage barrel 118.

[0075] It should be noted that, under normal conditions, the sealing plate 124 at the rear side of the inner channel 114 needs to be driven to rotate to a predetermined position first, and this position requires the concrete inlet at the rear side to be kept on the upper side of the sealing plate 124, that is, the front and rear concrete inlets maintain the highest height difference. After the sealing plate 124 rotates to a predetermined position, the telescopic motor 126 drives the fixed plug rod 127 to disengage from the connecting groove 125, and then due to the friction between the sealing plate 124 at the rear side of the inner channel 114 and the inner channel 114, the sealing plate 124 at the rear side no longer rotates.

[0076] When the sealing plate 124 at the rear side of the inner channel 114 needs to be rotated, the telescopic motor 126 drives the fixed rod 127 to be inserted into the connecting groove 125, so that the connecting rod 122 and the sealing plate 124 at the rear side of the inner channel 114 remain fixed, so that the rotation of the connecting rod 122 can drive the sealing plate 124 at the rear side of the inner channel 114 to rotate.

[0077] Specific construction method:

[0078] First, the land is divided into blocks before construction, and sufficient concrete is poured on each block and made as flat as possible. Then the vehicle-mounted platform 101 is moved to one of the blocks. After the vehicle-mounted platform 101 stops, the telescopic arm 102 is extended so that the cantilever beam 103 is located at the front end of the block.

[0079] After the above preparations are completed, according to the detection results of the laser detection instrument, the hydraulic lifting cylinder 104 drives the base 105 to descend to the appropriate position, and then the telescopic arm 102 begins to shrink, moving the base 105 and the thickened scraper 107 backward. The thickened scraper 107 pushes the excess concrete backward to achieve pre-leveling of the concrete base, and the vibration plate 106 under the base 105 vibrates at a high frequency to achieve leveling.

[0080] During the leveling process, cement is usually piled in excess. Therefore, if both sides of the plot are not leveled, the left and right guide vanes 116 rotate to the left and right sides respectively, so that the concrete is diverted in the flow channel 111 and flows to the plots on both sides through the outflow channel 113.

[0081] If one side of the plot has been leveled and the other side has not been leveled, all the guide vanes 116 rotate toward the unleveled side so that all the concrete flows to the unleveled side; and the outer outlet of the outflow channel 113 on the square end head 110 on the leveled plot side is blocked by the sealer 115.

[0082] If both sides of the plot have been leveled, the sealers 115 on the left and right square ends 110 will block the two outlets of the outflow channels 113, and the guide impellers 116 on the left and right sides will rotate to the left and right sides respectively, so that all the concrete will flow into the two outflow channels 113. At the same time, the transfer wheel 120 will rotate to transfer the concrete in the outflow channel 113 to the temporary storage barrel 118.

[0083] When the transfer wheel 120 rotates to the point where the cutout of the transfer wheel 120 is located at the bottom, as long as the concrete in the outflow channel 113 does not exceed the concrete inlet on the front side, the space in the cutout of the transfer wheel 120 will be automatically filled. Therefore, the transfer wheel 120 continues to rotate and the concrete in the cutout space will be transferred upward to the concrete inlet position on the rear side. Because the cutout of the transfer wheel 120 is inclined inward, the concrete will slide through the concrete inlet on the rear side into the temporary storage barrel 118.

[0084] In addition, when the transfer wheel 120 does not rotate, the cutout of the transfer wheel 120 is always located at the top.

[0085] Then, during the process of the base 105 and the thickened scraper 107 moving backward, the nozzle 108 at the frontmost side of the base 105 sprays out the curing agent to make the cement pavement solidify quickly.

[0086] Even if the cement is not piled up excessively but too little, during leveling, the telescopic motor 126 can drive the fixed plug rod 127 to connect with the connecting groove 125, and then drive the rear sealing plate 124 to rotate, so that the concrete inlet on the rear sealing plate 124 is also located at the bottom of the inner channel 114, so that the front and rear concrete inlets are flush, which is convenient for concrete to flow out.

[0087] After the concrete flows out, the guide impeller 116 is driven to reverse, promoting the concrete to flow to the concrete discharge port on the bevel plate 112, and at the same time, the plugging member 128 is opened to allow the concrete to flow onto the plot through the concrete discharge port.

[0088] Finally, after the leveling is completed, if the temporary storage bucket 118 is used, the bottom door 119 is opened first, and the concrete is taken out through the opening at the bottom of the temporary storage bucket 118. Then the leveling operation of the next plot is carried out. After all the leveling operations are completed, the components in the laser leveling machine are finally cleaned, especially the flow channel 111, the outflow channel 113, the concrete inlet and the temporary storage bucket 118.

[0089] Based on the above, the present invention designs a thickened scraper 107, and designs the middle main body of the thickened scraper 107 as an L-shaped plate 109, which effectively prevents the concrete from falling onto the leveling machine due to excessive accumulation, or even sliding onto the concrete floor that has been leveled on the front side. A flow channel 111 is provided on the bottom plate of the L-shaped plate 109, and the accumulated concrete is transported to the left side, the right side or the temporary storage bucket 118 in advance according to the leveling conditions of the plots on both sides. The concrete will not be piled up very high, effectively preventing the water and cement from flowing away, and avoiding the exposure of aggregates. The flow of concrete in the flow channel 111 is driven by the rotation of the guide vane 116, and the rotation direction of the guide vane 116 can be controlled, so that the concrete can control its flow direction as needed. In addition, two concrete inlets with height difference (adjustable) in front and back and a transfer wheel 120 with a cutout are designed, and a simple structure can realize the transfer of concrete from a low place to a high place, making the installation position of the temporary storage bucket 118 more flexible and the volume can also be set larger.

[0090] It should be understood by those skilled in the art that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention, including the claims, is limited to these examples; within the context of the present invention, the technical features in the above embodiments or in different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0091] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A concrete laser leveling machine, comprising a suspension beam (103), wherein the suspension beam (103) is arranged at the front end of a vehicle-mounted mechanism, characterized in that: The laser leveling machine also includes: A base (105) is movably connected to the bottom of the suspension beam (103), a vibration plate (106) is provided at the bottom of the base (105), and a driving member for driving the vibration plate (106) to vibrate up and down at a high frequency is also provided in the base (105); A thickened scraper (107) fixedly connected to the rear side of the base (105), the thickened scraper (107) consisting of an L-shaped plate (109) in the middle and square end caps (110) at both ends, a flow channel groove (111) being provided on the bottom plate of the L-shaped plate (109), and an outer plate of the L-shaped plate (109) being an inwardly inclined bevel plate (112), an outflow channel (113) penetrating from left to right being provided in the square end cap (110), and a sealer (115) being provided at the outer end of the outflow channel (113); A temporary storage bucket (118) is fixedly connected to the rear side wall of the square end head (110); an inner channel (114) is provided at the connection between the square end head (110) and the temporary storage bucket (118); the temporary storage bucket (118) is connected to the outflow channel (113) through the inner channel (114); a sealing plate (124) is respectively connected to the front and rear sides of the inner channel (114); and a concrete inlet is provided on each of the two sealing plates (124); The transfer wheel (120) located between the two sealing plates (124) is used to transfer concrete to the temporary storage barrel (118). The transfer wheel (120) is rotatably connected in the inner channel (114), and an inwardly inclined cut is opened on the arc edge of the transfer wheel (120).

2. A concrete laser leveling machine according to claim 1, characterized in that: A pair of hydraulic lifting cylinders (104) are fixedly connected to the suspension beam (103), the base (105) is fixedly connected to the output shaft of the hydraulic lifting cylinder (104), and the pipes connected between the base (105) and the suspension beam (103) are all hoses. A plurality of nozzles (108) are also provided on the front side wall of the base (105) for spraying curing agent to accelerate the solidification of the cement pavement, and the nozzles (108) are connected to the booster pump and the curing agent storage tank through the pipes in the base (105).

3. A concrete laser leveling machine according to claim 1 or 2, characterized in that: A concrete discharge port is also provided on the bevel plate (112) outside the L-shaped plate (109), the bottom of the concrete discharge port is flush with the bottom of the flow channel groove (111), and a plugging member (128) is also provided inside the concrete discharge port. The plugging member (128) is slidably connected to the L-shaped plate (109), and a telescopic rod (129) is fixedly connected to the inner end of the plugging member (128), and the other end of the telescopic rod (129) is connected to the output shaft of the hydraulic cylinder in the base (105).

4. A concrete laser leveling machine according to claim 1 or 2, characterized in that: Six or eight groups of guide vanes (116) are arranged in the flow channel groove (111), and the guide vanes (116) are rotatably connected to the inner plate of the L-shaped plate (109). A guide motor (117) is also arranged in the base (105), and the guide vanes (116) are fixedly connected to the output shaft of the guide motor (117).

5. The concrete laser leveling machine according to claim 1, characterized in that: The height of the bevel plate (112) is 5-10 cm higher than the bottom of the flow channel groove (111).

6. A concrete laser leveling machine according to claim 1 or 5, characterized in that: The inner end of the temporary storage barrel (118) is fixedly connected to a rotating motor (121), the output shaft of the rotating motor (121) is fixedly connected to a connecting rod (122), and the other end of the connecting rod (122) is fixedly connected to the transfer wheel (120).

7. A concrete laser leveling machine according to claim 6, characterized in that: The connecting rod (122) is rotatably connected to the sealing plate (124) at the rear side, and a plurality of stirring blades (123) are fixedly connected to the connecting rod (122). An opening is provided at the bottom of the temporary storage barrel (118), and a bottom door (119) is provided at the opening.

8. The concrete laser leveling machine according to claim 6, characterized in that: The sealing plate (124) on the front side of the inner channel (114) is fixedly connected in the inner channel (114), while the sealing plate (124) on the rear side of the inner channel (114) is rotatably connected in the inner channel (114), and the concrete inlet on the front sealing plate (124) is located at the bottom of the inner channel (114).

9. The construction method of a concrete laser leveling machine according to claim 8, characterized in that: A connecting groove (125) is also provided on the sealing plate (124) at the rear side of the inner channel (114), a telescopic motor (126) is fixedly connected to the connecting rod (122), and a fixed plug rod (127) matching the connecting groove (125) is connected to the output shaft of the telescopic motor (126).

10. The construction method of a concrete laser leveling machine according to claim 3 or 4, characterized in that: The steps include: Step 1: Preparation First, the land is divided into blocks, and sufficient concrete is poured on each block and the ground is paved as flat as possible. Then, the vehicle-mounted platform (101) is moved to one of the blocks. After the vehicle-mounted platform (101) stops, the telescopic arm (102) is extended so that the suspension beam (103) is located at the front end of the block. Step 2: Laser leveling According to the detection result of the laser detection instrument, the hydraulic lifting cylinder (104) drives the base (105) to descend to a suitable position, and then the telescopic arm (102) begins to shrink, carrying the base (105) and the thickened scraper (107) to move backwards, and the thickened scraper (107) pushes the excess concrete to move backwards to achieve pre-leveling of the concrete base, while the vibration plate (106) under the base (105) performs high-frequency vibration to achieve leveling; Step 3: Concrete accumulation treatment When the thickened scraper (107) moves backward, when the concrete accumulated thereafter is higher than the outer plate of the L-shaped plate (109), the concrete will automatically fall into the flow channel (111). At this time, the guide motor (117) is started to drive the guide impeller (116) to rotate, thereby promoting the concrete to flow in the flow channel (111); Step 4: Concrete treatment selection If both sides of the plot are not leveled, the guide vanes (116) on the left and right sides rotate to the left and right sides respectively, so that the concrete is diverted in the flow channel groove (111) and flows to the plots on both sides through the outflow channel (113); If one side of the plot has been leveled and the other side has not been leveled, all the guide vanes (116) rotate in the direction of the unleveled side, so that all the concrete flows to the unleveled side; If both sides of the plot have been leveled, the sealers (115) on the left and right square ends (110) block the two outlets of the two outflow channels (113), and the guide vanes (116) on the left and right sides rotate to the left and right sides respectively, so that all the concrete flows into the two outflow channels (113), and at the same time, the transfer wheel (120) rotates to transfer the concrete in the outflow channel (113) to the temporary storage bucket (118); Step 5: Rapid solidification During the process of the base (105) and the thickened scraper (107) moving backward, the nozzle (108) at the frontmost side of the base (105) sprays out a curing agent to rapidly solidify the cement pavement; Step 6: Cleaning After the leveling is completed, the components in the laser leveling machine are cleaned, especially the flow channel (111), the outflow channel (113), the concrete inlet and the temporary storage bucket (118).

Images