Maintenance device for bare concrete construction

Abstract

The invention discloses a maintenance device for fair-faced concrete construction, and relates to the technical field of constructional engineering maintenance equipment, the maintenance device comprises a frame, a shell, a water tank and wheels, a plurality of auxiliary components are installed in a roller, each auxiliary component comprises a water outlet pipe, a plug pin, a rotating plate, a support and a gravity block, and through the magnetic attraction force of a first magnet strip, the water outlet pipe is connected with the rotating plate; according to the concrete curing device, the inserting nails can be inserted into the covering layer more rapidly and accurately, so that the fixing efficiency of the covering layer is improved, it is guaranteed that the covering layer cannot slide or move in the laying process, and then the concrete curing quality is guaranteed; and when a gravity block rotates to the lower side of a roller, under the combined action of repulsive force and gravity of a second magnet strip and a magnet block, the gravity block is prevented from falling off or shifting. The sealing cover and the short pipe can be rapidly separated, the situation that the stability of the device is affected by vibration generated by movement of the device is avoided, concrete is evenly sprayed on a covering layer and concrete, the concrete curing effect is improved, and the problems of concrete cracking and the like caused by uneven curing are solved.

Description

Technical Field

[0001] The invention relates to the technical field of building engineering maintenance equipment, and in particular to a maintenance device for plain concrete construction. Background Art

[0002] At present, the construction industry is developing rapidly. The promotion and application of the construction technology of plain concrete is one of the signs of the development of modern construction technology. Through the application of plain concrete construction technology in construction projects, people's awareness of the quality of construction projects has been continuously improved, and the scientificity and efficiency of construction technology have been continuously improved. However, the maintenance of plain concrete lacks scientificity and efficiency, and the traditional maintenance method is still the mainstream in the construction process. The maintenance of large-scale and large-area cast-in-place plain structures has always been a difficult problem that people are eager to solve. In order to ensure the early strength after pouring, the concrete must be moisturized and maintained for more than one week after demolding. The cast-in-place structure is very sensitive to changes in temperature and humidity during the hardening process. If the maintenance work is improper or untimely, the concrete will be subjected to rapid cooling and heating, which will cause the concrete to crack, crack or peel off easily. With the traditional manual watering maintenance method, when the water on the concrete surface is lost too quickly in hot weather, the concrete surface needs to be watered again to retain moisture. Moreover, when watering the concrete surface directly, if the water pressure and water volume are inappropriate, the concrete surface can be easily damaged by the impact of the water flow. This method is not only labor-intensive and inefficient, but also has poor maintenance effects, which has a serious impact on the quality assurance of the structure.

[0003] In the prior art, a Chinese invention patent with announcement number CN115179407B discloses a curing device for plain concrete construction, comprising a crossbeam, two crossbeams having curing components disposed on opposite inner sides thereof, a feed component disposed on the upper side of the crossbeam located above the curing component, and a curing liquid component fixedly connected thereto. When the curing component is in operation, the covering layer in the feed component can be automatically humidified by the curing liquid in the curing liquid component and laid on the surface of the concrete. The overall structure of the above device is ingenious and the operation is simple. During the concrete curing process, the device can not only complete the laying and humidification of the roll covering layer and the block covering layer, but also automatically adjust the temperature of the curing liquid, so that the curing liquid can be maintained at the most ideal curing temperature, thereby improving the efficiency of the curing work and ensuring the curing effect.

[0004] However, the above-mentioned device controls the extension of the pins and the opening and closing of the short tubes through the gravity of the gravity block. When the device moves as a whole to lay the covering layer and humidify, certain vibrations may be caused during the movement of the device. The vibration force may cause the gravity block to shake to a certain extent, thereby driving the lever to rotate to a certain extent, resulting in unstable extension of the pins and opening and closing of the short tubes, which can easily affect the stability of the pins when inserted into the covering layer, causing the covering layer to slip or shift during the laying process. In addition, the unstable opening and closing of the short tube will affect the uniformity of the curing liquid on the covering layer, and ultimately cause concrete cracking due to uneven curing. Summary of the invention

[0005] The embodiment of the present application solves the problem of concrete cracking caused by uneven curing in the prior art by providing a curing device for fair-faced concrete construction.

[0006] The embodiment of the present application provides a maintenance device for plain concrete construction, including a frame, a shell, a water tank and wheels, wherein the shell is fixed to the top of the frame, the wheels are rotatably connected to the frame, the water tank is fixed to the frame, and further includes a drum and a fixed shaft, wherein the fixed shaft is fixedly connected to the frame, the drum and the fixed shaft are coaxially sealed and rotatably connected, the drum is hollow inside, and a plurality of auxiliary components are installed inside the drum, each group of auxiliary components includes a water outlet pipe, a pin, a rotating plate, a bracket and a gravity block, the water outlet pipe is fixed to the drum, and the water outlet pipe can connect the internal space of the drum with the external space, and the The bracket is L-shaped, one end of the bracket is fixedly connected to the water outlet pipe, the rotating plate is rotatably connected to the other end of the bracket, a sealing gasket capable of closing the water outlet pipe is installed on the rotating plate, the pin is fixed on the rotating plate, and an avoidance hole for the pin to extend out of the roller is provided on the roller, the gravity block is installed on the side of the rotating plate away from the pin, and a magnet block is also installed on the gravity block, and a first magnet bar and a second magnet bar are also installed on the fixed shaft, the first magnet bar and the second magnet bar are both located inside the roller, and the first magnet bar is located on the upper side of the second magnet bar, and the magnet block is attracted to the first magnet bar, and the magnet block is repelled from the second magnet bar.

[0007] Furthermore, the first magnet bar and the second magnet bar are both arc-shaped magnet bars, and the length of the first magnet bar is 1.2-1.6 times the length of the second magnet bar, and the first magnet bar and the second magnet bar cooperate with each other to form a circular ring. When the drum rotates clockwise, the rotating plate in the auxiliary component located in the upper part of the drum can drive the rotating plate to rotate clockwise through the gravity of the gravity block and the magnetic attraction between the magnet block and the first magnet bar, so that the pin extends out of the drum and closes the water outlet pipe, and the rotating plate in the auxiliary component located in the lower part of the drum can drive the rotating plate to rotate counterclockwise through the gravity of the gravity block and the repulsive force between the magnet block and the second magnet bar, so that the pin retracts into the drum and opens the water outlet pipe.

[0008] Furthermore, the first magnet bar includes a first magnet portion and a first transition portion, the first magnet portion and the first transition portion are fixedly connected, and the thickness of the first transition portion gradually decreases in a clockwise direction; the second magnet bar includes a second magnet portion and a second transition portion, the second magnet portion and the second transition portion are fixedly connected, and the thickness of the second transition portion gradually decreases in a clockwise direction.

[0009] Furthermore, the length of the first magnet portion is 1.6-2 times the length of the first transition portion; the length of the second magnet portion is 1.2-1.5 times the length of the second transition portion.

[0010] Furthermore, a sliding groove is provided inside the gravity block, and the magnet block is slidably connected inside the gravity block through the sliding groove.

[0011] Furthermore, each group of the auxiliary components also includes a pull rope and a plug, one end of the pull rope is fixedly connected to the magnet block, the other end of the pull rope is fixedly connected to the plug, and an avoidance groove for the pull rope to slide is opened in the bracket, the plug is located at the end of the water outlet pipe away from the rotating plate, and the plug is conical, and the conical surface of the plug faces the water outlet pipe. When the auxiliary component rotates to the upper side of the drum with the drum, the magnet block is driven to move toward the first magnet bar through the magnetic attraction force between the magnet block and the first magnet bar, and the pull rope is pulled to block the end of the water outlet pipe away from the rotating plate; when the auxiliary component rotates to the lower side of the drum with the drum, the magnet block is driven away from the second magnet bar through the repulsive force between the magnet block and the second magnet bar, and at this time the plug can be moved by its own gravity and away from the water outlet pipe.

[0012] Furthermore, a plurality of balls are fixed to the portion of the pull rope located at the water outlet pipe.

[0013] Furthermore, the drum and the wheel are connected by a transmission belt. When the wheel rotates, the drum can be driven to rotate through the transmission belt. The fixed shaft is provided with a liquid inlet channel, and the input end of the liquid inlet channel is connected with the water tank through a water pipe. A pump body is fixed on the water tank, and the output end of the liquid inlet channel is connected with the internal space of the drum. When the pump body is working, the water tank can replenish the curing liquid into the drum through the water pipe and the liquid inlet channel. An electric heating tube is also installed in the water tank for heating the curing liquid in the water tank.

[0014] Furthermore, the side of the frame away from the water tank is rotatably connected to a swing rod, the end of the swing rod away from the frame is rotatably connected to a pressure rod, a heat-conducting layer is provided on the pressure rod, and a first temperature sensor is installed between the pressure rod and the heat-conducting layer, and a second temperature sensor is installed in the water tank.

[0015] Furthermore, a long rod is detachably installed in the shell, the long rod is rotatable in the shell, and the long rod can be wound around the covering layer.

[0016] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0017] Firstly, the present invention can insert the nails into the covering layer more quickly and accurately through the magnetic attraction of the first magnet bar, thereby improving the fixing efficiency of the covering layer, ensuring that the covering layer will not slip or shift during the laying process, and further ensuring the quality of concrete curing. When the gravity block rotates to the lower side of the drum, the sealing cover and the short tube can be quickly separated under the combined action of the repulsive force of the second magnet bar and the magnet block and the gravity, and the increased magnetic force can prevent the vibration caused by the movement of the device from affecting the stability of the device, ensuring that the curing liquid can smoothly flow out through the short tube and be evenly sprayed on the covering layer and concrete, thereby improving the curing effect of the concrete and reducing the problems of concrete cracking caused by uneven curing.

[0018] Secondly, the present invention sets the first transition part and the second transition part. When the magnet block transitions from the first magnet bar area to the second magnet bar area (or from the second second magnet bar area to the first magnet bar area), the shape of the first transition part or the second transition part can make the magnetic force on the magnet block in the transition area smaller and smaller, avoiding vibration caused by sudden change of magnetic force, protecting the integrity of the drum and its internal components, and because the stability of the device is improved, the curing liquid can be sprayed more evenly and continuously on the covering layer and the concrete surface, thereby improving the curing effect. At the same time, the reduced vibration also avoids possible damage such as micro cracks to fresh concrete;

[0019] Thirdly, in the present invention, when the rotating plate transitions from the second magnet strip area to the first magnet strip area as the drum rotates, the rotating plate may approach verticality and produce a "balanced" state. At this time, the magnet block is on the side of the rotating plate in the gravity block, and when it transitions from the second magnet strip area to the first magnet strip area, the magnetic force changes from repulsion to attraction, and the magnet block is attracted by the first magnet strip and moves toward the first magnet strip. At this time, the movement of the magnet block changes the center of gravity of the gravity block, and the movement of the magnet block also provides the initial power for the rotation of the rotating plate, thereby avoiding the rotating plate from maintaining "balance" and affecting the time for the pins to be extended, and then causing the pins to not be extended in time, which affects the fixation of the covering layer, thereby ensuring that the covering layer will not slip or shift during the laying process, and ensuring the quality of concrete curing;

[0020] Fourthly, in the present invention, when the auxiliary component is located in the first magnet bar area, the magnet block moves toward the first magnet bar, and the plug is pulled by the pull rope to close the water outlet pipe to prevent debris on the covering layer from clogging the water outlet pipe. As the drum rotates, when the auxiliary component rotates to the second magnet bar area, the magnet block moves toward the side away from the second magnet block. At this time, the pull rope is in a non-tensioned state. At this time, the plug can move under its own gravity and away from the water outlet pipe. At this time, the curing liquid can be discharged to the covering layer and concrete through the water outlet pipe, ensuring uniform spraying, which helps to improve the curing effect of the concrete and further reduce problems such as concrete cracking caused by uneven curing. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 is a cross-sectional view of the present invention;

[0023] Figure 3 It is a three-dimensional structural cross-sectional view of the drum of the present invention;

[0024] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0025] Figure 5 It is a three-dimensional structural cross-sectional view of the drum in the second embodiment of the present invention;

[0026] Figure 6 This is a schematic diagram of the internal structure of the auxiliary component in the third embodiment of the present invention;

[0027] Figure 7 This is a schematic diagram of the structure of the auxiliary component in the first state in the fourth embodiment of the present invention;

[0028] Figure 8 This is a schematic diagram of the second state structure of the auxiliary component in Example 4 of the present invention.

[0029] In the figure:

[0030] 100, frame; 110, housing; 120, water tank; 130, wheels; 140, transmission belt; 150, swing rod; 160, pressure rod; 170, long rod;

[0031] 200, roller; 210, fixed shaft; 211, liquid inlet channel; 212, water pipe; 220, first magnet strip; 221, first magnet part; 222, first transition part; 230, second magnet strip; 231, second magnet part; 232, second transition part;

[0032] 300, auxiliary parts; 310, water outlet pipe; 320, pin; 330, rotating plate; 340, bracket; 350, gravity block; 351, magnet block; 352, sliding groove; 353, pull rope; 354, plug; 355, ball; 360, sealing gasket. DETAILED DESCRIPTION

[0033] To facilitate the understanding of the present invention, the present application will be described more comprehensively below with reference to the relevant drawings; the drawings show preferred embodiments of the present invention, but the present invention can be implemented in many different forms and is not limited to the embodiments described herein; on the contrary, the purpose of providing these embodiments is to enable a more thorough and comprehensive understanding of the disclosed content of the present invention.

[0034] It should be noted that the terms “vertical”, “horizontal”, “up”, “down”, “left”, “right” and similar expressions used in this document are only for illustrative purposes and do not represent the only implementation method.

[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which the present invention belongs; the terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention; the term "and / or" used herein includes any and all combinations of one or more related listed items.

[0036] Embodiment 1: Figure 1-Figure 4As shown, the embodiment of the present application provides a maintenance device for plain concrete construction, including a frame 100, a shell 110, a water tank 120 and a wheel 130, wherein the shell 110 is fixed to the top of the frame 100, the wheel 130 is rotatably connected to the frame 100, the water tank 120 is fixed to the frame 100, and further includes a drum 200 and a fixed shaft 210, wherein the fixed shaft 210 is fixedly connected to the frame 100, the drum 200 is coaxially sealed and rotatably connected to the fixed shaft 210, the drum 200 is hollow inside, and a plurality of auxiliary components 3 are installed inside the drum 200. 00, each set of auxiliary components 300 includes a water outlet pipe 310, a pin 320, a rotating plate 330, a bracket 340 and a gravity block 350, the water outlet pipe 310 is fixed on the drum 200, and the water outlet pipe 310 can make the internal space of the drum 200 communicate with the external space, the bracket 340 is L-shaped, one end of the bracket 340 is fixedly connected to the water outlet pipe 310, the rotating plate 330 is rotatably connected to the other end of the bracket 340, a sealing gasket 360 capable of closing the water outlet pipe 310 is installed on the rotating plate 330, the pin 320 is fixed on the rotating plate 330, and the drum 2 00 is also provided with an avoidance hole for the pin 320 to extend out of the drum 200, the gravity block 350 is installed on the side of the rotating plate 330 away from the pin 320, and the gravity block 350 is also installed with a magnet block 351, and the fixed shaft 210 is also installed with a first magnet bar 220 and a second magnet bar 230, the first magnet bar 220 and the second magnet bar 230 are both located inside the drum 200, and the first magnet bar 220 is located on the upper side of the second magnet bar 230, and the magnet block 351 and the first magnet bar 220 are attracted to each other, and the magnet block 351 and the second magnet bar 230 are repelled. When the drum 200 moves in the same direction, When the drum 200 rotates clockwise, the rotating plate 330 in the auxiliary component 300 located in the upper part of the drum 200 can be driven to rotate clockwise by the gravity of the gravity block 350 and the magnetic attraction between the magnet block 351 and the first magnet bar 220, so that the pin 320 extends out of the drum 200 and closes the water outlet pipe 310, and the rotating plate 330 in the auxiliary component 300 located in the lower part of the drum 200 can be driven to rotate counterclockwise by the gravity of the gravity block 350 and the repulsive force between the magnet block 351 and the second magnet bar 230, so that the pin 320 is retracted into the drum 200 and the water outlet pipe 310 is opened.

[0037] Preferably, the first magnet bar 220 and the second magnet bar 230 are both arc-shaped magnet bars, and the length of the first magnet bar 220 is 1.2-1.6 times the length of the second magnet bar 230. The first magnet bar 220 and the second magnet bar 230 cooperate with each other to form a circular ring. By controlling the length of the first magnet bar 220, the extension time of the pin 320 is extended, so that the covering layer can be driven by the pin 320 to perform the laying operation more stably.

[0038] Preferably, the drum 200 is connected to the wheel 130 through a transmission belt 140. When the wheel 130 rotates, the drum 200 can be driven to rotate through the transmission belt 140. The fixed shaft 210 is provided with a liquid inlet channel 211, and the input end of the liquid inlet channel 211 is connected to the water tank 120 through a water pipe 212. A pump body (not shown in the figure) is fixed to the water tank 120, and the output end of the liquid inlet channel 211 is connected to the internal space of the drum 200. When the pump body is working, the water tank 120 can replenish the curing liquid into the drum 200 through the water pipe 212 and the liquid inlet channel 211. An electric heating pipe capable of heating the curing liquid in the water tank 120 is also installed in the water tank 120. This is a prior art and will not be elaborated in detail.

[0039] Preferably, the side of the frame 100 away from the water tank 120 is also rotatably connected to a swing rod 150, and the end of the swing rod 150 away from the frame 100 is rotatably connected to a pressure rod 160, the pressure rod 160 is provided with a heat-conducting layer, and a first temperature sensor (not shown in the figure) is installed between the pressure rod 160 and the heat-conducting layer, and a second temperature sensor (not shown in the figure) is installed in the water tank 120.

[0040] Preferably, a long rod 170 is detachably installed in the shell 110 , and the long rod 170 is rotatable in the shell 110 , and the long rod 170 can be wound around the covering layer.

[0041] When performing maintenance operations, firstly, the long rod 170 is disassembled, and the covering layer is wound on the long rod 170. The covering layer adopts straw mats or felt with good water absorption and water storage capacity. The long rod 170 is installed on the shell 110, and then one end of the covering layer is stretched, and it passes through the roller 200 and the pressure rod 160 in sequence, and finally covered on the clear water concrete. Then, the shell 110 is pulled to move by the frame 100, and the wheel 130 will also rotate accordingly, and then the roller 200 is driven to rotate through the transmission belt 140. When the roller 200 rotates, the rotating plate 330 in the auxiliary component 300 located on the upper side of the roller 200 can drive the rotating plate 330 to rotate clockwise through the gravity of the gravity block 350 and the magnetic attraction of the magnet block 351 and the first magnet bar 220, so that the pin 320 extends out of the roller 200 and closes the water outlet pipe 310. After the pin 320 extends out of the roller 200, it can be inserted into the covering layer. As the roller 200 rotates, the covering layer is continuously pulled out and The roller 200 is laid on the concrete surface. As the roller 200 rotates, the reorganization auxiliary component 300 gradually rotates with the roller 200 to the lower side of the roller 200. At this time, the rotating plate 330 in the reorganization auxiliary component 300 can drive the rotating plate 330 to rotate counterclockwise through the gravity of the gravity block 350 and the repulsive force between the magnet block 351 and the second magnet bar 230, so that the pin 320 retracts into the roller 200 and the water outlet pipe 310 is opened, and the curing liquid in the roller 200 can flow out through the water outlet pipe 310. When the roller 200 rotates, the raw material composition of the curing liquid inside the roller 200 can be more uniform. The curing liquid water delivery pipe 212 and the liquid inlet channel 211 in the water tank 120 can also be injected into the roller 200 through the pump body. The temperature of the curing liquid can be detected by the first temperature sensor and the second temperature sensor, and the curing liquid can be heated by the electric heating pipe to make the curing liquid at the optimal curing temperature. This is the prior art and will not be described in detail.

[0042] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages:

[0043] Through the magnetic attraction of the first magnet bar 220, the pin 320 can be inserted into the covering layer more quickly and accurately, thereby improving the fixing efficiency of the covering layer, ensuring that the covering layer will not slip or shift during the laying process, and further ensuring the quality of concrete curing. When the gravity block 350 rotates to the lower side of the drum 200, under the combined action of the repulsive force of the second magnet bar 230 and the magnet block 351 and gravity, the sealing cover and the short tube can be quickly separated, and the increased magnetic force can avoid the vibration caused by the movement of the device affecting the stability of the device, ensuring that the curing liquid can flow out smoothly through the short tube and be evenly sprayed on the covering layer and concrete, thereby improving the curing effect of the concrete and reducing problems such as concrete cracking caused by uneven curing.

[0044] Embodiment 2: In Embodiment 1, when the gravity block 350 rotates clockwise with the drum 200, the magnet block 351 on the gravity block 350 transitions from the first magnet bar 220 area to the second magnet bar 230 area. Due to the sudden change of magnetic force, the rotating plate 330 may rotate vigorously, thereby causing the rotating plate 330 to vibrate, which may cause damage to other components in the drum 200. In order to avoid the above problems, Figure 5 As shown, further improvements are made to the first embodiment:

[0045] Preferably, the first magnet bar 220 includes a first magnet portion 221 and a first transition portion 222, the first magnet portion 221 and the first transition portion 222 are fixedly connected, and the thickness of the first transition portion 222 gradually decreases in a clockwise direction; the second magnet bar 230 includes a second magnet portion 231 and a second transition portion 232, the second magnet portion 231 and the second transition portion 232 are fixedly connected, and the thickness of the second transition portion 232 gradually decreases in a clockwise direction.

[0046] Preferably, the length of the first magnet portion 221 is 1.6-2 times the length of the first transition portion 222 ; the length of the second magnet portion 231 is 1.2-1.5 times the length of the second transition portion 232 .

[0047] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages:

[0048] By setting the first transition part 222 and the second transition part 232, when the magnet block 351 transitions from the first magnet bar 220 area to the second magnet bar 230 area (or from the second second magnet bar 230 area to the first magnet bar 220 area), the shape of the first transition part 222 or the second transition part 232 can make the magnetic force on the magnet block 351 in the transition area smaller and smaller, avoiding vibration caused by sudden change of magnetic force, protecting the integrity of the drum 200 and its internal components, and because the stability of the device is improved, the curing liquid can be sprayed more evenly and continuously on the cover layer and the concrete surface, thereby improving the curing effect. At the same time, the reduced vibration also avoids possible damage such as micro cracks to the fresh concrete.

[0049] Embodiment 3: When the auxiliary component 300 rotates to some special positions with the drum 200, such as after the auxiliary component 300 has finished spraying the curing liquid, it continues to rotate with the drum 200 to wait for the pins 320 to extend and insert into the covering layer. When the rotating plate 330 approaches the vertical state, the gravity effect applied by the gravity block 350 to the rotating plate 330 is poor. The magnetic attraction force of the magnet block 351 and the first magnet bar 220 alone may not be able to drive the rotating plate 330 to rotate. This means that the rotating plate 330 will maintain a certain "balance" at this time, affecting the time for the pins 320 to extend. If the pins 320 are not extended in time, it may affect the fixation of the covering layer. In order to solve the above problem, Figure 6 As shown, further improvements are made to the second embodiment:

[0050] Preferably, a sliding groove 352 is provided inside the gravity block 350 , and the magnet block 351 is slidably connected inside the gravity block 350 through the sliding groove 352 .

[0051] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages:

[0052] When the rotating plate 330 transitions from the second magnet bar 230 area to the first magnet bar 220 area as the drum 200 rotates, the rotating plate 330 may approach verticality and produce a "balanced" state. At this time, the magnet block 351 is on the side of the rotating plate 330 in the gravity block 350, and when it transitions from the second magnet bar 230 area to the first magnet bar 220 area, the magnetic force changes from repulsion to attraction, and the magnet block 351 is attracted by the first magnet bar 220 and moves toward the first magnet bar 220. At this time, the movement of the magnet block 351 changes the center of gravity of the gravity block 350, and the movement of the magnet block 351 also provides initial power for the rotation of the rotating plate 330, thereby avoiding the rotating plate 330 from maintaining "balance" and affecting the time for the pins 320 to extend, resulting in the pins 320 not extending in time, which affects the fixation of the covering layer, thereby ensuring that the covering layer will not slip or shift during the laying process, thereby ensuring the quality of concrete curing.

[0053] Embodiment 4: Since the covering layer is made of straw mat or felt, when the drum 200 rotates and the covering layer is pulled by the pins 320, some debris may fall from the covering layer, and most of the debris will fall on the upper side of the drum 200, which may block the water outlet pipe 310 and affect the uniformity of the curing liquid spraying. In order to avoid the above problems, Figure 7-Figure 8 As shown, further improvements are made to the third embodiment:

[0054] Preferably, each group of the auxiliary components 300 further includes a pull rope 353 and a plug 354, one end of the pull rope 353 is fixedly connected to the magnet block 351, and the other end of the pull rope 353 is fixedly connected to the plug 354, and a shunting groove for the pull rope 353 to slide is provided in the bracket 340, and the plug 354 is located at one end of the water outlet pipe 310 away from the rotating plate 330, and the plug 354 is conical, and the conical surface of the plug 354 faces the water outlet pipe 310. When the auxiliary component 300 rotates with the drum 200 to the drum 200, the drum 200 is rotated to the drum 200. When the auxiliary component 300 rotates to the lower side of the drum 200, the magnet block 351 is driven to move away from the second magnet bar 230 through the magnetic attraction between the magnet block 351 and the first magnet bar 220, and the pull rope 353 is pulled so that the plug 354 blocks the end of the water outlet pipe 310 away from the rotating plate 330; when the auxiliary component 300 rotates to the lower side of the drum 200 with the drum 200, the magnet block 351 is driven to move away from the second magnet bar 230 through the repulsive force between the magnet block 351 and the second magnet bar 230, and the plug 354 can move away from the water outlet pipe 310 due to its own gravity.

[0055] Preferably, a plurality of balls 355 are fixed to the portion of the pull rope 353 located at the water outlet pipe 310 .

[0056] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages:

[0057] When the auxiliary component 300 is located in the area of ​​the first magnet bar 220, the magnet block 351 moves toward the first magnet bar 220, and pulls the plug 354 through the pull rope 353 to close the water outlet pipe 310, so as to prevent debris on the covering layer from clogging the water outlet pipe 310. As the drum 200 rotates, when the auxiliary component 300 rotates to the area of ​​the second magnet bar 230, the magnet block 351 moves toward the side away from the second magnet block 351. At this time, the pull rope 353 is in a non-tensioned state. At this time, the plug 354 can move under its own gravity and away from the water outlet pipe 310. At this time, the curing liquid can be discharged to the covering layer and concrete through the water outlet pipe 310, thereby ensuring uniform spraying, helping to improve the curing effect of the concrete, and further reducing problems such as concrete cracking caused by uneven curing.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A maintenance device for plain concrete construction, comprising a frame (100), a housing (110), a water tank (120) and wheels (130), wherein the housing (110) is fixed to the top of the frame (100), the wheels (130) are rotatably connected to the frame (100), and the water tank (120) is fixed to the frame (100), characterized in that: The invention also comprises a drum (200) and a fixed shaft (210), wherein the fixed shaft (210) is fixedly connected to the frame (100), the drum (200) and the fixed shaft (210) are coaxially sealed and rotatably connected, the drum (200) is hollow inside, a plurality of auxiliary components (300) are installed inside the drum (200), each group of auxiliary components (300) comprises a water outlet pipe (310), a pin (320), a rotating plate (330), a bracket (340) and a gravity block (350), the water outlet pipe (310) is fixed to the drum (200), and the water outlet pipe (310) can make the internal space of the drum (200) communicate with the external space, the bracket (340) is L-shaped, one end of the bracket (340) is fixedly connected to the water outlet pipe (310), the rotating plate (330) is rotatably connected to the other end of the bracket (340), and the rotating plate (330) is rotatably connected to the other end of the bracket (340). A sealing gasket (360) capable of sealing the water outlet pipe (310) is installed on the plate (330), the inserting pin (320) is fixed on the rotating plate (330), and an avoidance hole for the inserting pin (320) to extend out of the roller (200) is also opened on the roller (200), the gravity block (350) is installed on a side of the rotating plate (330) away from the inserting pin (320), and a magnet block (351) is also installed on the gravity block (350), and a first magnet bar (220) and a second magnet bar (230) are also installed on the fixed shaft (210), the first magnet bar (220) and the second magnet bar (230) are both located inside the roller (200), and the first magnet bar (220) is located on the upper side of the second magnet bar (230), and the magnet block (351) and the first magnet bar (220) are attracted to each other, and the magnet block (351) and the second magnet bar (230) are repelled from each other.

2. A maintenance device for plain concrete construction according to claim 1, characterized in that: The first magnet bar (220) and the second magnet bar (230) are both arc-shaped magnet bars, and the length of the first magnet bar (220) is 1.2-1.6 times the length of the second magnet bar (230). The first magnet bar (220) and the second magnet bar (230) cooperate with each other to form a circular ring shape. When the drum (200) rotates clockwise, the rotating plate (330) in the auxiliary component (300) located on the upper part of the drum (200) can be connected to the first magnet bar (220) by the gravity of the gravity block (350) and the magnet block (351). The magnetic attraction of the magnet strip (220) drives the rotating plate (330) to rotate clockwise, so that the pin (320) extends out of the drum (200) and closes the water outlet pipe (310), and the rotating plate (330) in the auxiliary component (300) located at the lower part of the drum (200) can drive the rotating plate (330) to rotate counterclockwise through the gravity of the gravity block (350) and the repulsive force of the magnet block (351) and the second magnet strip (230), so that the pin (320) retracts into the drum (200) and opens the water outlet pipe (310).

3. A maintenance device for plain concrete construction according to claim 1, characterized in that: The first magnet strip (220) comprises a first magnet portion (221) and a first transition portion (222), the first magnet portion (221) and the first transition portion (222) are fixedly connected, and the thickness of the first transition portion (222) gradually decreases in a clockwise direction; the second magnet strip (230) comprises a second magnet portion (231) and a second transition portion (232), the second magnet portion (231) and the second transition portion (232) are fixedly connected, and the thickness of the second transition portion (232) gradually decreases in a clockwise direction.

4. A maintenance device for plain concrete construction according to claim 3, characterized in that: The length of the first magnet portion (221) is 1.6-2 times the length of the first transition portion (222); the length of the second magnet portion (231) is 1.2-1.5 times the length of the second transition portion (232).

5. A maintenance device for plain concrete construction according to claim 1, characterized in that: A sliding groove (352) is provided inside the gravity block (350), and the magnet block (351) is slidably connected inside the gravity block (350) through the sliding groove (352).

6. A maintenance device for plain concrete construction according to claim 5, characterized in that: Each group of the auxiliary components (300) further comprises a pull rope (353) and a plug (354), one end of the pull rope (353) is fixedly connected to the magnet block (351), and the other end of the pull rope (353) is fixedly connected to the plug (354), and an escape groove for the pull rope (353) to slide is provided in the bracket (340), and the plug (354) is located at one end of the water outlet pipe (310) away from the rotating plate (330), and the plug (354) is conical, and the conical surface of the plug (354) faces the water outlet pipe (310). When the auxiliary component (300) rotates with the drum (200) to the upper side of the drum (200), When the auxiliary component (300) rotates to the lower side of the drum (200), the magnet block (351) is driven to move away from the second magnet bar (230) by the repulsive force between the magnet block (351) and the second magnet bar (230), and the plug (354) can be moved away from the water outlet pipe (310) by its own weight.

7. A maintenance device for plain concrete construction according to claim 6, characterized in that: A plurality of balls (355) are fixed to the portion of the pull rope (353) located on the water outlet pipe (310).

8. A maintenance device for plain concrete construction according to claim 1, characterized in that: The drum (200) is connected to the wheel (130) by a transmission belt (140). When the wheel (130) rotates, the drum (200) can be driven to rotate by the transmission belt (140). The fixed shaft (210) is provided with a liquid inlet channel (211), and the input end of the liquid inlet channel (211) is connected to the water tank (120) through a water pipe (212). A pump body is fixed to the water tank (120), and the output end of the liquid inlet channel (211) is connected to the internal space of the drum (200). When the pump body is working, the water tank (120) can replenish the curing liquid into the drum (200) through the water pipe (212) and the liquid inlet channel (211). The water tank (120) is also provided with an electric heating pipe capable of heating the curing liquid in the water tank (120).

9. A maintenance device for plain concrete construction according to claim 1, characterized in that: A side of the frame (100) away from the water tank (120) is also rotatably connected to a swing rod (150), and an end of the swing rod (150) away from the frame (100) is rotatably connected to a pressure rod (160). A heat-conducting layer is sleeved on the pressure rod (160), and a first temperature sensor is installed between the pressure rod (160) and the heat-conducting layer. A second temperature sensor is installed in the water tank (120).

10. A maintenance device for fair-faced concrete construction according to claim 1, characterized in that: A long rod (170) is detachably installed in the shell (110); the long rod (170) is rotatable in the shell (110), and the long rod (170) can be wound around the covering layer.

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