Concrete wall maintenance spraying device and using method

Abstract

The invention belongs to the technical field of concrete curing, and particularly relates to a concrete wall curing spraying device and a using method.The concrete wall curing spraying device comprises an outer cylinder, a threaded hole is formed in the bottom end of the outer cylinder, and the hole wall of the threaded hole is in threaded connection with an adjusting screw rod. The concrete wall maintenance spraying device not only has a multi-angle adjusting function to realize comprehensive and uniform maintenance spraying on a building concrete inner wall, but also has a small-amount and multi-time automatic spraying maintenance function, so that the timeliness of spraying maintenance of the building concrete inner wall is improved, and the maintenance efficiency is improved. According to the device, the situation that a building concrete inner wall cracks due to the fact that spraying maintenance is not in place is avoided as much as possible, meanwhile, the device further has the functions of maintenance spraying online monitoring, concrete hardness automatic detection and maintenance spraying water flow automatic adjustment, the maintenance effect and intellectualization can be effectively improved, the labor intensity of workers is reduced, and the production efficiency is improved. And the efficiency and convenience of maintenance and spraying of the building concrete inner wall body are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of concrete curing, and in particular relates to a concrete wall curing spraying device and a using method thereof. Background Art

[0002] The curing of concrete refers to providing hydration reaction conditions for the concrete after it is molded into the formwork, so that it gradually hardens under a certain humidity. Therefore, it is necessary to spray water on the concrete to achieve the humidity required for hardening, so as to obtain good physical and mechanical properties and durability. The early curing of concrete is a process of "careful" construction. The concept of "mainly relying on early curing and supplemented by material shrinkage reduction" is still the mainstream of current concrete crack control. Currently, concrete producers pursue higher early strength benefits of concrete, and often use cement with lower fineness, which increases the reaction rate of concrete, and also puts forward higher requirements for the curing conditions of concrete. For example, the patent authorization announcement number is CN205189416U, which discloses a concrete wall curing spraying device.

[0003] At present, the concrete beams and slabs in building projects usually have good curing conditions of film covering and moisture preservation. For vertical members, it more depends on people's sense of responsibility. The automatic curing equipment on the outer side of the exterior wall can also be lifted layer by layer with the main body climbing frame, and the technology application is relatively common. However, the automatic curing process of the internal walls of buildings lags behind relatively. Most still rely on manual spraying of water to maintain the curing environment. Since the concrete inner wall is in a vertical state and the surface is relatively smooth, it is difficult for the sprayed water to stay in large quantities and is extremely easy to evaporate. This requires adopting a spraying and curing strategy of low volume and multiple times for the concrete inner wall to meet the humidity conditions required for its hydration reaction. However, in actual operation, manual spraying is often difficult to be in place in time. After the staff completes one spraying, they are often busy with other affairs and cannot continuously pay attention to the dry and wet conditions of the inner wall surface. As a result, after the water on the inner wall evaporates and dries, it cannot be quickly sprayed and moisturized again. This situation of untimely curing directly results in the obstruction of the hydration reaction of the concrete inner wall due to water shortage, and then leads to quality problems such as surface cracking, bringing challenges to the overall quality control of the project. At the same time, frequent manual operations not only greatly increase the labor intensity of the staff, but also seriously affect the efficiency and convenience of the spraying and curing of the concrete inner wall.

[0004] Therefore, we propose a concrete wall curing spraying device and a using method thereof to solve the above problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a concrete wall curing spraying device and a using method thereof for the above problems.

[0006] To achieve the above object, the present invention adopts the following technical solutions: a concrete wall maintenance spraying device and a using method, including an outer cylinder, the bottom end of the outer cylinder is provided with a threaded hole, and the inner wall of the threaded hole is threadedly connected with an adjusting screw rod, the bottom end of the adjusting screw rod is fixedly connected with a square block, the outer wall of the square block is sleeved with a base, the outer wall of the base is fixedly connected with a U-shaped fixing seat, and the inner wall of the through hole at the top end of the U-shaped fixing seat is fixedly connected with an electric regulating valve; The outer wall of the top end of the outer cylinder is fixedly sleeved with a spraying observation mechanism; The outer wall of the outer cylinder is movably sleeved with a plurality of spraying mechanisms; The outer wall of the outer cylinder is movably sleeved with a concrete hardness detection mechanism.

[0007] In the above-mentioned concrete wall maintenance spraying device, the spraying observation mechanism includes a first bearing fixedly sleeved on the outer wall of the top end of the outer cylinder, the outer wall of the outer ring of the first bearing is fixedly sleeved with a glass cylinder, the top end of the glass cylinder is provided with a round hole, and the inner wall of the round hole is fixedly connected with a second bearing, the inner wall of the inner ring of the second bearing is fixedly connected with a top block, the inner wall of the top end of the outer cylinder is fixedly connected with a support plate, the upper surface of the support plate is fixedly connected with a first electric push rod, the top end of the first electric push rod is fixedly connected with a moving plate, the upper surface of the moving plate is fixedly connected with a SIM card wireless camera, and the top end of the protective cover of the SIM card wireless camera is fixedly connected with a cleaning component.

[0008] In the above-mentioned concrete wall maintenance spraying device, the cleaning component includes a guiding bolt fixedly connected to the top end of the outer cover of the SIM card wireless camera, the outer wall of the guiding bolt is threadedly connected with a rotating nut, the outer wall of the rotating nut is fixedly sleeved with a U-shaped frame, the top end of the U-shaped frame is fixedly connected with the inner wall of the top end of the glass cylinder, the side wall of the top block is fixedly connected with an L-shaped thin rod, and the rod wall of the L-shaped thin rod is fixedly connected with a rubber squeegee for cleaning the water stains on the outer wall of the glass cylinder.

[0009] In the above-mentioned concrete wall curing spraying device, the spraying mechanism includes a first connecting ring movably sleeved on the outer wall of the outer cylinder. Two symmetrically distributed first threaded holes are formed in the outer wall of the first connecting ring, and a first positioning bolt is threadedly connected to the inner wall of the first threaded hole. Two first connecting rods are hinged to the outer wall of the first connecting ring. The top ends of the rod walls of the first connecting rods are hinged with two first sliders. The outer walls of the two first sliders are jointly slidably connected with a connecting cylinder. Two first horizontal chutes respectively matched with the two first sliders are formed in the outer wall of the connecting cylinder. An extension rod is movably connected to the inner wall of the side end of the connecting cylinder. A second threaded hole is formed in the side wall of the connecting cylinder, and a limiting bolt is threadedly connected to the inner wall of the second threaded hole. A U-shaped plate is fixedly connected to the side wall of the extension rod. A threaded rod is fixedly connected to the inner wall of the U-shaped plate. A limiting nut and an adjusting rod are sleeved on the rod wall of the threaded rod. A rotary sitting spraying head is fixedly connected to the top end of the adjusting rod. A first connecting groove matched with the side end of the connecting cylinder is formed in the outer wall of the first connecting ring.

[0010] In the above-mentioned concrete wall curing spraying device, a rubber anti-slip sheet is sleeved on the rod wall of the threaded rod. The outer wall of the rubber anti-slip sheet is fixedly connected to the inner wall of the U-shaped plate. The side of the rubber anti-slip sheet away from the U-shaped plate contacts the rod wall of the U-shaped plate.

[0011] In the above-mentioned concrete wall curing spraying device, the concrete hardness detection mechanism includes a second connecting ring movably sleeved on the outer wall of the outer cylinder. Two symmetrically distributed third threaded holes are formed in the outer wall of the second connecting ring, and a second positioning bolt is threadedly connected to the inner wall of the third threaded hole. Two second connecting rods are hinged to the outer wall of the second connecting ring. The top ends of the rod walls of the second connecting rods are hinged with two second sliders. The outer walls of the two second sliders are jointly slidably connected with a second electric push rod. Two second horizontal chutes respectively matched with the two second sliders are formed in the outer wall of the second electric push rod. An electronic concrete hardness rebound instrument is fixedly connected to the moving end of the second electric push rod. An auxiliary mechanism is fixedly connected to the moving end of the second electric push rod.

[0012] In the above-mentioned concrete wall curing spraying device, the auxiliary mechanism includes an L-shaped bracket fixedly connected to the outer wall of the moving end of the second electric push rod. A touch switch is fixedly embedded in the vertical part of the L-shaped bracket. The touch switch is located above the electronic concrete hardness rebound instrument. A PLC controller and a lithium battery are fixedly connected to the inner wall of the top end of the outer cylinder. An installation hole is formed in the outer wall of the top end of the outer cylinder, and a rubber sealing block is fixedly connected to the inner wall of the installation hole. A plurality of wire passing holes are formed in the outer wall of the rubber sealing block.

[0013] A usage method applied to a concrete wall curing spraying device includes the following steps: S1. When curing is required after the formwork of the interior concrete wall of a building is removed, first select an appropriate number of concrete wall curing spray devices according to the location and area of the interior concrete wall of the building, and position and install the concrete wall curing spray devices at the interior concrete wall of the building that needs to be cured. Then, vertically arrange the outer cylinder through the base, adjusting screw, and top block. Next, horizontally install the connecting cylinder of each spray mechanism in the first connecting groove of the corresponding spray mechanism, and horizontally install the second electric push rod in the second connecting groove; S2. In step S1, after the connecting cylinder of the spray mechanism is horizontally installed, adjust the spraying angles of the rotary sit-type spray heads of each spray mechanism so that the rotary sit-type spray heads in multiple spray mechanisms cooperate with each other to comprehensively and evenly spray moisturizing liquid on the surface of the interior concrete wall of the building. At the same time, arrange the detection end of the electronic concrete hardness rebound instrument in the concrete hardness detection mechanism on the outside of the inner wall surface of the building; S3. After the angles of multiple rotary sit-type spray heads are completely positioned, connect multiple rotary sit-type spray heads in series to the water outlet end of the electric control valve through multiple PVC flexible water pipes. The water inlet end of the electric control valve is connected to the indoor permanent and temporary combined fire hydrant in the building through a PVC flexible water pipe, and water supply to the concrete wall curing spray device is realized through the indoor permanent and temporary combined fire hydrant; S4. Then, the PLC controller controls the electric control valve to open, so that the water liquid in the indoor permanent and temporary combined fire hydrant in the building is transported to each rotary sit-type spray head with adjusted angles through the PVC water pipe network. The rotary sit-type spray head sprays water flow onto the interior concrete wall of the building. At the same time, in order to cope with the situation that the retention amount of the sprayed water liquid is insufficient due to the vertical state of the interior concrete wall of the building, the PLC controller controls the electric control valve to start spraying and curing for 5 minutes every 2 hours, so as to provide continuous and reliable hydration reaction conditions for the concrete; S5. When the concrete wall curing spray device is in use, the SIM card wireless camera can also remotely capture images of the curing spray site and transmit them back to the control room of the construction project. And the SIM card wireless camera can rotate freely 360 degrees to take pictures, ensuring that the staff can remotely and comprehensively understand the situation of the curing spray site and monitor the effect of the curing spray of the interior concrete wall of the building; S6. In step S5, while the SIM card wireless camera is monitoring online, the water stains attached to the surface of the glass cylinder are scraped off by the cleaning component; S7. In the first 2 minutes of each curing spray of the interior concrete wall of the building, the PLC controller controls the concrete hardness detection mechanism and the auxiliary mechanism to automatically detect the hardness of the interior concrete wall of the building. At the same time, the electronic concrete hardness rebound instrument can send the detected hardness value to the PLC controller in the form of an electrical signal, and the PLC controller can correspondingly control the opening degree of the electric control valve according to the surface hardness of the interior concrete wall of the building.

[0014] Compared with the existing technology, the advantages of a concrete wall curing spraying device and its usage method are as follows: 1. Through the adjustable screw rods and spraying mechanisms provided, when the inner wall of the building concrete needs to be cured after form removal, first select the corresponding number of concrete wall curing spraying devices according to the position and area of the inner wall of the building concrete, and position and install the concrete wall curing spraying devices at the inner wall of the building concrete that needs to be cured. Then, adjust the height and angle of multiple spraying mechanisms through the first connecting ring and fix them. At the same time, adjust the position of the rotary sitting spraying heads through the connecting cylinder and extension rods. Then, adjust the spraying angle of the rotary sitting spraying heads through the adjusting rods, so that the rotary sitting spraying heads in multiple spraying mechanisms cooperate with each other, and can comprehensively and evenly spray moisturizing liquid on the surface of the inner wall of the building concrete, avoiding the situation of uneven and incomplete spraying of moisturizing liquid by a single rotary sitting spraying head. This mechanism enables the concrete wall curing spraying device to have the function of multi-angle adjustment, and multiple rotary sitting spraying heads cooperate with each other to comprehensively and evenly cure and spray the inner wall of the building concrete, effectively improving the effect of concrete spraying curing.

[0015] 2. Through the spraying mechanisms, electric control valves and PLC controllers provided, after the angles of multiple rotary sitting spraying heads are completely positioned, connect multiple rotary sitting spraying heads in series to the water outlet end of the electric control valve through multiple PVC flexible water pipes, and the water inlet end of the electric control valve is connected to the indoor permanent-temporary combined fire hydrant in the building through a PVC flexible water pipe. Then, the PLC controller controls the electric control valve to open, so that the water liquid in the indoor permanent-temporary combined fire hydrant in the building is transported to each rotary sitting spraying head with adjusted angles through the PVC water pipe network. The rotary sitting spraying heads spray water flow onto the inner wall of the building concrete, making the surface of the inner wall of the building concrete wet through sufficient water supply, and providing sufficient hydration reaction conditions for the cement particles in the inner wall of the building concrete. At the same time, the PLC controller controls the electric control valve to start spraying and curing for 5 minutes every 2 hours, realizing providing continuous and reliable hydration reaction conditions for the concrete, and without manual operation. This mechanism enables the concrete wall curing spraying device to have the function of automatic spraying and curing in small amounts and multiple times, which can improve the timeliness of spraying and curing the inner wall of the building concrete, and can provide continuous and reliable hydration reaction conditions for the concrete, and try to avoid the situation of cracking of the inner wall of the building concrete due to insufficient spraying and curing. It can not only improve the effect and intelligence of curing the inner wall of the building concrete, but also reduce the labor intensity of the staff, as well as improve the efficiency and convenience of spraying and curing the inner wall of the building concrete.

[0016] 3. Through the provided spray observation mechanism, when the concrete wall maintenance spray device is in use, the SIM card wireless camera can also remotely capture images of the maintenance spray site and transmit them back to the control room of the construction project. Moreover, the SIM card wireless camera can rotate freely 360 degrees for shooting, ensuring that the staff can comprehensively understand the situation of the maintenance spray site remotely and monitor the effect of the maintenance spray on the inner wall of the building concrete. At the same time, the PLC controller also controls the cleaning component to clean the water stains on the surface of the glass cylinder, ensuring the clarity of the images captured by the SIM card wireless camera. The glass cylinder can also protect the protective cover of the SIM card wireless camera. This mechanism enables the concrete wall maintenance spray device to have the function of online monitoring, allowing real-time monitoring of whether the on-site automatic spray maintenance equipment is operating normally and reducing the workload of manual inspections.

[0017] 4. Through the provided concrete hardness detection mechanism and auxiliary mechanism, within the first 2 minutes of each maintenance spray on the inner wall of the building concrete, the PLC controller controls the concrete hardness detection mechanism and the auxiliary mechanism to automatically detect the hardness of the inner wall of the building concrete. At the same time, the electronic concrete hardness rebound instrument can send the detected hardness value to the PLC controller in the form of an electrical signal. The PLC controller can correspondingly control the opening degree of the electric regulating valve according to the surface hardness of the inner wall of the building concrete. That is, as the maintenance spray of the concrete wall maintenance spray device extends, the surface hardness of the inner wall of the building concrete gradually increases, which means that the degree of hydration reaction of the cement is relatively high, most of the cement particles that can participate in the reaction have completed hydration or the hydration rate has become very slow. At this time, the demand for supplementary water from the outside is not as urgent as in the initial stage, and accordingly, the spraying amount of the maintenance water can be appropriately reduced, that is, the purpose of saving water resources is achieved. Therefore, the PLC controller controls the opening degree of the electric regulating valve to gradually decrease. This mechanism enables the concrete wall maintenance spray device to have the functions of automatic concrete hardness detection and automatic adjustment of the flow rate of the maintenance spray water, improving the effect of the maintenance spray, and enabling the concrete wall maintenance spray device to have the ability to save water resources. Brief Description of the Drawings

[0018] Figure 1 is a schematic structural diagram of a concrete wall maintenance spray device and its usage method provided by the present invention; Figure 2 is a schematic structural diagram of a part of the spray mechanism in a concrete wall maintenance spray device and its usage method provided by the present invention; Figure 3 is a schematic structural diagram of a part of the spray mechanism in a concrete wall maintenance spray device and its usage method provided by the present invention; Figure 4 is a schematic bottom view of the base in a concrete wall maintenance spray device and its usage method provided by the present invention; Figure 5 It is a schematic structural diagram of the first connection groove part in a concrete wall maintenance spraying device and its usage method provided by the present invention; Figure 6 It is a schematic structural diagram of the U-shaped plate part in a concrete wall maintenance spraying device and its usage method provided by the present invention; Figure 7 It is a schematic structural diagram of the concrete hardness detection mechanism in a concrete wall maintenance spraying device and its usage method provided by the present invention; Figure 8 It is a schematic structural diagram of the rubber sealing block in a concrete wall maintenance spraying device and its usage method provided by the present invention.

[0019] In the figure: 1 outer cylinder, 2 adjusting screw, 3 square block, 4 base, 5 spraying observation mechanism, 51 first bearing, 52 glass cylinder, 53 second bearing, 54 top block, 55 support plate, 56 first electric push rod, 57 moving plate, 58 SIM card wireless camera, 6 cleaning component, 61 guiding bolt, 62 rotating nut, 63 U-shaped frame, 64 L-shaped thin rod, 65 rubber scraping strip, 7 spraying mechanism, 71 first connecting ring, 72 first positioning bolt, 73 first connecting rod, 74 first slider, 75 connecting cylinder, 76 first horizontal chute, 77 extension rod, 78 limit bolt, 79 U-shaped plate, 710 threaded rod, 711 limit nut, 712 adjusting rod, 713 rotating seat type spraying head, 714 first connection groove, 8 concrete hardness detection mechanism, 81 second connecting ring, 82 second positioning bolt, 83 second connecting rod, 84 second slider, 85 second electric push rod, 86 second horizontal chute, 87 electronic concrete hardness rebound instrument, 88 second connection groove, 9 auxiliary mechanism, 91 L-shaped bracket, 92 touch switch, 93 PLC controller, 94 lithium battery, 95 rubber sealing block, 96 wire passing hole, 10 U-shaped fixing seat, 11 electric regulating valve, 12 rubber anti-slip sheet. Detailed implementation manners

[0020] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0021] Such as Figures 1 - 8As shown in the figure, a concrete wall maintenance spraying device and its usage method include an outer cylinder 1. A threaded hole is opened at the bottom end of the outer cylinder 1, and an adjusting screw 2 is threadedly connected to the inner wall of the threaded hole. The bottom end of the adjusting screw 2 is fixedly connected to a square block 3. The outer wall of the square block 3 is sleeved with a base 4. The outer wall of the base 4 is fixedly connected to a U-shaped fixing seat 10. The inner wall of the top through hole of the U-shaped fixing seat 10 is fixedly connected to an electric control valve 11.

[0022] The outer wall of the top end of the outer cylinder 1 is fixedly sleeved with a spraying observation mechanism 5. The spraying observation mechanism 5 includes a first bearing 51 fixedly sleeved on the outer wall of the top end of the outer cylinder 1. The outer wall of the outer ring of the first bearing 51 is fixedly sleeved with a glass cylinder 52. A round hole is opened at the top end of the glass cylinder 52, and a second bearing 53 is fixedly connected to the inner wall of the round hole. The inner wall of the inner ring of the second bearing 53 is fixedly connected to a top block 54. The inner wall of the top end of the outer cylinder 1 is fixedly connected to a support plate 55. The upper surface of the support plate 55 is fixedly connected to a first electric push rod 56. The top end of the first electric push rod 56 is fixedly connected to a moving plate 57. The upper surface of the moving plate 57 is fixedly connected to a SIM card wireless camera 58. The top end of the protective cover of the SIM card wireless camera 58 is fixedly connected to a cleaning component 6. The cleaning component 6 includes a guiding bolt 61 fixedly connected to the top end of the outer cover of the SIM card wireless camera 58. A rotating nut 62 is threadedly connected to the outer wall of the guiding bolt 61. The outer wall of the rotating nut 62 is fixedly sleeved with a U-shaped frame 63. The top end of the U-shaped frame 63 is fixedly connected to the inner wall of the top end of the glass cylinder 52. The side wall of the top block 54 is fixedly connected to an L-shaped thin rod 64. A rubber squeegee 65 for cleaning the water stains on the outer wall of the glass cylinder 52 is fixedly connected to the rod wall of the L-shaped thin rod 64. This mechanism enables the concrete wall maintenance spraying device to have an online monitoring function, can monitor in real time whether the on-site automatic spraying maintenance equipment is operating normally, reduces the workload of manual inspections, and the online monitoring structure also has a protective function, ensures the clarity of the monitoring screen, and improves the reliability of the device's use.

[0023] A plurality of spraying mechanisms 7 are movably sleeved on the outer wall of the outer cylinder 1. The spraying mechanism 7 includes a first connecting ring 71 movably sleeved on the outer wall of the outer cylinder 1. Two symmetrically distributed first threaded holes are formed in the outer wall of the first connecting ring 71, and a first positioning bolt 72 is threadedly connected to the hole wall of the first threaded hole. Two first connecting rods 73 are hinged to the outer wall of the first connecting ring 71. The top ends of the rod walls of the first connecting rods 73 are hinged with two first sliders 74. The outer walls of the two first sliders 74 are jointly slidably connected with a connecting cylinder 75. Two first horizontal chutes 76 respectively matched with the two first sliders 74 are formed in the outer wall of the connecting cylinder 75. An extension rod 77 is movably connected to the inner wall of the side end of the connecting cylinder 75. A second threaded hole is formed in the side wall of the connecting cylinder 75, and a limiting bolt 78 is threadedly connected to the hole wall of the second threaded hole. A U-shaped plate 79 is fixedly connected to the side wall of the extension rod 77. A threaded rod 710 is fixedly connected to the inner wall of the U-shaped plate 79. A rubber anti-slip sheet 12 is sleeved on the rod wall of the threaded rod 710. The outer wall of the rubber anti-slip sheet 12 is fixedly connected to the inner wall of the U-shaped plate 79. The side of the rubber anti-slip sheet 12 away from the U-shaped plate 79 contacts the rod wall of the U-shaped plate 79. The rubber anti-slip sheet 12 can improve the stability of the limit of the adjusting rod 712. A limit nut 711 and an adjusting rod 712 are sleeved on the rod wall of the threaded rod 710. The top end of the adjusting rod 712 is fixedly connected with a rotary seat type spray head 713. A first connecting groove 714 matched with the side end of the connecting cylinder 75 is formed in the outer wall of the first connecting ring 71. The cooperation of a plurality of spraying mechanisms 7 can improve the comprehensiveness and uniformity of the spraying for the maintenance of the inner wall of the building concrete. And this mechanism enables the concrete wall maintenance spraying device to also have the function of automatic spraying and maintenance in small amounts and multiple times, which can improve the timeliness of the spraying maintenance of the inner wall of the building concrete, and can provide continuous and reliable hydration reaction conditions for the concrete, and try to avoid the situation that the inner wall of the building concrete cracks due to insufficient spraying maintenance. It can not only improve the effect of the maintenance of the inner wall of the building concrete, but also reduce the labor intensity of the staff, and improve the efficiency and convenience of the spraying maintenance of the inner wall of the building concrete.

[0024] The outer wall of the outer cylinder 1 is movably sleeved with a concrete hardness detection mechanism 8. The concrete hardness detection mechanism 8 includes a second connection ring 81 movably sleeved on the outer wall of the outer cylinder 1. Two symmetrically distributed threaded holes three are opened on the outer wall of the second connection ring 81, and a second positioning bolt 82 is threadedly connected to the hole wall of the threaded hole three. Two second connecting rods 83 are hinged on the outer wall of the second connection ring 81. The top ends of the rod walls of the second connecting rods 83 are hinged with two second sliders 84. The outer walls of the two second sliders 84 are jointly slidably connected with a second electric push rod 85. Two second horizontal sliding grooves 86 respectively matched with the two second sliders 84 are opened on the outer wall of the second electric push rod 85. The moving end of the second electric push rod 85 is fixedly connected with an electronic concrete hardness rebound instrument 87. A second connection groove 88 matched with the side end of the second electric push rod 85 is opened on the outer wall of the second connection ring 81. The moving end of the second electric push rod 85 is fixedly connected with an auxiliary mechanism 9. The auxiliary mechanism 9 includes an L-shaped bracket 91 fixedly connected to the outer wall of the moving end of the second electric push rod 85. A touch switch 92 is fixedly embedded in the vertical part of the L-shaped bracket 91. The touch switch 92 is located above the electronic concrete hardness rebound instrument 87. The inner wall of the top end of the outer cylinder 1 is fixedly connected with a PLC controller 93 and a lithium battery 94. An installation hole is opened on the outer wall of the top end of the outer cylinder 1, and a rubber seal block 95 is fixedly connected to the hole wall of the installation hole. A plurality of wire passing holes 96 are opened on the outer wall of the rubber seal block 95. This mechanism enables the concrete wall maintenance spraying device to have the functions of automatically detecting the concrete hardness and automatically adjusting the flow rate of the maintenance spraying water, improving the effect of the maintenance spraying of the inner wall of the building concrete, and enabling the concrete wall maintenance spraying device to have the ability to save water resources.

[0025] The first electric push rod 56, the second electric push rod 85 and the electric regulating valve 11 are all electrically connected to the output end of the PLC controller 93 through wires. The electronic concrete hardness rebound instrument 87 is electrically connected to the input end of the PLC controller 93 through a wire. The conductive branch of the touch switch 92 is electrically connected to the input end of the PLC controller 93 through a wire. The model of the electronic concrete hardness rebound instrument 87 is PCE-HT224E hardness meter. The PCE-HT224E hardness meter is equipped with a Micro USB interface and can be connected to the PLC controller 93 seat through a corresponding data cable. The SIM card wireless camera 58 is electrically connected to the lithium battery 94 through a wire. The above-mentioned electrified devices and electrical connections are prior arts and are well known to those skilled in the art, so they will not be described in detail here.

[0026] The operating principle of the present invention is described as follows: When the interior wall of building concrete needs to be cured after form removal, first, select an appropriate number of concrete wall curing spray devices according to the position and area of the interior wall of building concrete, and position and install the concrete wall curing spray devices at the interior wall of building concrete that needs to be cured. Specifically, place the outer cylinder 1 vertically, insert the base 4 into the square block 3 at the bottom end of the adjusting screw 2, and rotate the base 4 so that the bottom end of the adjusting screw 2 extends outward, and then push the outer cylinder 1 upward. Finally, the base 4 contacts the building ground, and the top block 54 contacts the roof of the building to achieve the purpose of positioning the outer cylinder 1. Then, adjust the height and angle of the multiple spray mechanisms 7 through the first connecting ring 71. After the adjustment is completed, sequentially rotate the first positioning bolts 72 on different spray mechanisms 7. The first positioning bolts 72 squeeze the outer cylinder 1 to fix each spray mechanism 7. Then, the side end of the connecting cylinder 75 is connected to the first connecting groove 714 through the cooperation of the first connecting rod 73, the first slider 74, and the first horizontal chute 76 to achieve the purpose of horizontally arranging the connecting cylinder 75. At the same time, adjust the length of the extension rod 77. After the length of the extension rod 77 is adjusted, rotate the limit bolt 78 for limiting. Then, adjust the angle of the adjusting rod 712 on the threaded rod 710 to further adjust the spraying angle of the rotary sitting spray head 713 at the top of the adjusting rod 712, so that the rotary sitting spray heads 713 in the multiple spray mechanisms 7 cooperate with each other to comprehensively and evenly spray the moisturizing liquid on the surface of the interior wall of building concrete, avoiding the situation that the single rotary sitting spray head 713 sprays the moisturizing liquid unevenly and incompletely. Then, after the angles of the rotary sitting spray heads 713 of each spray mechanism 7 are adjusted, rotate the limit nut 711. The limit nut 711 squeezes the adjusting rod 712 and squeezes the adjusting rod 712 to the rubber anti-slip sheet 12. The frictional force generated by the deformation of the rubber anti-slip sheet 12 and the squeezing force of the limit nut 711 can ensure that the angle of the adjusting rod 712 can be stably maintained after adjustment. At the same time, adjust the position and height of the second connecting ring 81 and fix it through the second positioning bolt 82. Then, insert the side end of the second electric push rod 85 into the second connecting groove 88 through the second connecting rod 83, the second slider 84, and the second horizontal chute 86 to horizontally arrange the second electric push rod 85 and ensure that the detection end of the electronic concrete hardness rebound instrument 87 is close to the outer side of the inner wall surface of the building. This mechanism enables the concrete wall curing spray device to have the function of multi-angle adjustment, and the multiple rotary sitting spray heads 713 cooperate with each other to comprehensively and evenly spray the moisturizing liquid on the interior wall of building concrete, effectively improving the effect of concrete spray curing and the reliability of the use of the concrete wall curing spray device; After the multiple rotating seated sprinkler heads 713 are completely positioned at different angles, the multiple rotating seated sprinkler heads 713 are connected in series to the water outlet end of the electric regulating valve 11 through multiple PVC soft water pipes, and the water outlet end of the last rotating seated sprinkler head 713 in the series water circuit is sealed to avoid overflow and waste of spray water, and the water inlet end of the electric regulating valve 11 is connected to the permanent combined fire hydrant in the building through the PVC soft water pipe, and the water supply to the concrete wall maintenance sprinkler device is realized through the indoor permanent combined fire hydrant. Then, at the initial stage of spray maintenance, the PLC controller 93 controls the opening of the electric regulating valve 11 to be fully opened, so that the water in the indoor permanent combined fire hydrant of the building is transported to the rotating seated sprinkler heads 713 adjusted at various angles through the PVC soft water pipeline, and the rotating seated sprinkler heads 713 spray water onto the inner concrete wall of the building. Through sufficient water supply, the surface of the inner concrete wall of the building is moistened, and sufficient hydration reaction conditions can be provided to the cement particles in the inner concrete wall of the building, and the inner concrete wall of the building can be improved. The hardness of the body surface is improved, and the cracking of the surface of the building concrete inner wall is avoided. Moreover, the rotating seated sprinkler head 713 is affected by the water flow, and the nozzle end of the rotating seated sprinkler head 713 will also rotate, which can improve the comprehensiveness and uniformity of the spraying maintenance of the building concrete inner wall. At the same time, in order to cope with the situation that the vertical state of the building concrete inner wall causes insufficient retention of spray water, the PLC controller 93 controls the electric regulating valve 11 to start spraying maintenance for 5 minutes every 2 hours, so as to provide the concrete with continuous and reliable hydration reaction conditions, and no manual operation is required, saving time and effort. The mechanism enables the concrete wall maintenance spraying device to have a small amount of multiple automatic spraying maintenance function, which can improve the timeliness of the spraying maintenance of the building concrete inner wall, and can provide the concrete with continuous and reliable hydration reaction conditions, and try to avoid the cracking of the building concrete inner wall due to inadequate spraying maintenance, which can not only improve the maintenance effect, but also reduce the labor intensity of the staff, and improve the efficiency and convenience of the spraying maintenance of the building concrete inner wall; When the concrete wall curing spray device is in use, the SIM card wireless camera 58 can also remotely capture images of the curing spray site and transmit them back to the control room of the construction project. Moreover, the SIM card wireless camera 58 can rotate freely 360 degrees to ensure that the staff can remotely and comprehensively understand the situation of the curing spray site and monitor the effect of the curing spray on the inner wall of the building concrete. At the same time, the PLC controller 93 controls the first electric push rod 56 to move slowly back and forth. The first electric push rod 56 drives the moving plate 57 and the SIM card wireless camera 58 to move slowly up and down. This reciprocating movement will not interfere with the clarity of the images captured by the SIM card wireless camera 58. During the up and down reciprocating movement of the SIM card wireless camera 58, it drives the guide bolt 61 to move and drives the rotating nut 62 to rotate left or right. During the rotation of the rotating nut 62, it drives the glass cylinder 52 to rotate through the U-shaped frame 63, the first bearing 51 and the second bearing 53. During the rotation of the glass cylinder 52, the rubber wiper 65 can scrape off the water stains attached to the surface of the glass cylinder 52 to ensure the clarity of the images captured by the SIM card wireless camera 58. The glass cylinder 52 can also protect the protective cover of the SIM card wireless camera 58 to prevent the protective cover of the SIM card wireless camera 58 from being interfered by water stains and resulting in unclear captured images. This mechanism enables the concrete wall curing spray device to have the function of on-line monitoring, can monitor in real time whether the on-site automatic spray curing equipment is operating normally, reduces the workload of manual inspection, and the on-line monitoring structure also has a protective function, ensures the clarity of the monitoring screen, and improves the reliability of the device use; During the first 2 minutes of each maintenance spray on the inner wall of the building concrete, the second electric push rod 85 of the PLC controller 93 extends slowly, and pushes the detection end of the electronic concrete hardness rebound instrument 87 close to the surface of the inner wall of the building concrete. As the mobile end of the second electric push rod 85 continues to extend, the detection end of the electronic concrete hardness rebound instrument 87 is pushed back by the surface of the inner wall of the building concrete and retracts. When the detection end of the electronic concrete hardness rebound instrument 87 is completely retracted, it will cause the elastic potential energy stored in the elastic impact spring inside the electronic concrete hardness rebound instrument 87 to be released and converted into the kinetic energy of the heavy hammer. The heavy hammer impacts the detection end of the electronic concrete hardness rebound instrument 87 and transmits the force to the concrete surface at the same time. Due to the different hardness of the concrete, the absorbed energy is different. The greater the hardness, the more energy is absorbed, and the smaller the kinetic energy of the heavy hammer rebound. On the contrary, the smaller the hardness, the less energy is absorbed, and the greater the kinetic energy of the heavy hammer rebound. Then, the rebound value is calculated through the rebound distance of the heavy hammer, and finally the hardness of the concrete is calculated. In addition, the electronic concrete hardness rebound instrument 87 will also send the detected hardness value to the PLC controller 93 in the form of an electrical signal. At the same time, the L-shaped bracket 91 also closely adheres to the surface of the inner wall of the building concrete and presses the touch switch 92. After the button of the touch switch 92 is pushed and squeezed by the surface of the inner wall of the building concrete, the circuit of the touch switch 92 is turned on and an electrical signal is sent to the PLC controller 93. The PLC controller 93 controls the recovery of the mobile end of the second electric push rod 85 according to this electrical signal, completing the automatic detection of the hardness of the inner wall of the building concrete. The PLC controller 93 can control the opening degree of the electric regulating valve 11 according to the hardness of the surface of the inner wall of the building concrete. That is, as the maintenance spray of the concrete wall maintenance spray device extends, the hardness of the surface of the inner wall of the building concrete gradually increases, which means that the degree of hydration reaction of the cement is relatively high, most of the cement particles that can participate in the reaction have completed hydration or the hydration rate has become very slow. At this time, the demand for supplementing water from the outside is not as urgent as in the initial stage, and accordingly, the spraying amount of the maintenance water can be appropriately reduced, that is, the purpose of saving water resources can be achieved. Therefore, the PLC controller 93 controls the opening degree of the electric regulating valve 11 to gradually decrease. Moreover, detecting the concrete hardness at the same position each time can effectively avoid the interference of other factors, so that the change in concrete hardness can effectively reflect the effect of the concrete maintenance spray. This mechanism enables the concrete wall maintenance spray device to have the functions of automatic detection of concrete hardness and automatic adjustment of the flow rate of the maintenance spray water, improving the effect of the concrete maintenance spray, and enabling the concrete wall maintenance spray device to have the ability to save water resources.

[0027] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, 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 concrete wall maintenance spraying device, comprising an outer cylinder (1), characterized in that: A threaded hole is formed at the bottom end of the outer cylinder (1), and an adjusting screw (2) is threadedly connected to the wall of the threaded hole, a block (3) is fixedly connected to the bottom end of the adjusting screw (2), a base (4) is sleeved on the outer wall of the block (3), a U-shaped fixing seat (10) is fixedly connected to the outer wall of the base (4), and an electric regulating valve (11) is fixedly connected to the inner wall of the through hole at the top end of the U-shaped fixing seat (10); A spray observation mechanism (5) is fixedly sleeved on the outer wall of the top end of the outer cylinder (1); The outer wall of the outer cylinder (1) is movably sleeved with a plurality of spray mechanisms (7); The outer wall of the outer cylinder (1) is movably sleeved with a concrete hardness detection mechanism (8).

2. A concrete wall maintenance spraying device according to claim 1, characterized in that: The spray observation mechanism (5) comprises a first bearing (51) fixedly sleeved with the outer wall of the top end of the outer cylinder (1); the outer ring outer wall of the first bearing (51) is fixedly sleeved with a glass cylinder (52); a round hole is opened at the top end of the glass cylinder (52); a second bearing (53) is fixedly connected to the hole wall of the round hole; a top block (54) is fixedly connected to the inner wall of the inner ring of the second bearing (53); a support plate (55) is fixedly connected to the inner wall of the top end of the outer cylinder (1); a first electric push rod (56) is fixedly connected to the upper surface of the support plate (55); a moving plate (57) is fixedly connected to the top end of the first electric push rod (56); a SIM card wireless camera (58) is fixedly connected to the upper surface of the moving plate (57); a cleaning component (6) is fixedly connected to the top end of the protective outer cover of the SIM card wireless camera (58).

3. A concrete wall maintenance spraying device according to claim 2, characterized in that: The cleaning assembly (6) comprises a guide bolt (61) fixedly connected to the top end of the outer cover of the SIM card wireless camera (58); the outer wall of the guide bolt (61) is threadedly connected to a rotating nut (62); the outer wall of the rotating nut (62) is fixedly sleeved with a U-shaped frame (63); the top end of the U-shaped frame (63) is fixedly connected to the inner wall of the top end of the glass cylinder (52); the side wall of the top block (54) is fixedly connected to an L-shaped thin rod (64); the rod wall of the L-shaped thin rod (64) is fixedly connected to a rubber scraper (65) used for cleaning water stains on the outer wall of the glass cylinder (52).

4. A concrete wall maintenance spraying device according to claim 3, characterized in that: The spray mechanism (7) comprises a first connecting ring (71) movably sleeved with the outer wall of the outer tube (1); the outer wall of the first connecting ring (71) is provided with two symmetrically distributed threaded holes, and the hole walls of the threaded holes are threadedly connected with first positioning bolts (72); the outer wall of the first connecting ring (71) is hinged with two first connecting rods (73); the top ends of the rod walls of the first connecting rods (73) are hinged with two first sliding blocks (74); the outer walls of the two first sliding blocks (74) are slidably connected with a connecting tube (75); the outer wall of the connecting tube (75) is provided with two first horizontal sliding grooves (76) respectively matched with the two first sliding blocks (74); the connecting tube An extension rod (77) is movably connected to the inner wall of the side end of the connecting tube (75); a second threaded hole is provided on the side wall of the connecting tube (75); a limit bolt (78) is threadedly connected to the hole wall of the second threaded hole; a U-shaped plate (79) is fixedly connected to the side wall of the extension rod (77); a threaded rod (710) is fixedly connected to the inner wall of the U-shaped plate (79); a limit nut (711) and an adjustment rod (712) are sleeved on the rod wall of the threaded rod (710); a rotating seated sprinkler head (713) is fixedly connected to the top end of the adjustment rod (712); and a first connecting groove (714) matching the side end of the connecting tube (75) is provided on the outer wall of the first connecting ring (71).

5. A concrete wall maintenance spraying device according to claim 4, characterized in that: The rod wall of the threaded rod (710) is sleeved with a rubber anti-skid sheet (12), the outer wall of the rubber anti-skid sheet (12) is fixedly connected to the inner wall of the U-shaped plate (79), and the side of the rubber anti-skid sheet (12) away from the U-shaped plate (79) is in contact with the rod wall of the U-shaped plate (79).

6. A concrete wall maintenance spraying device according to claim 5, characterized in that: The concrete hardness detection mechanism (8) comprises a second connection ring (81) movably sleeved with the outer wall of the outer cylinder (1); the outer wall of the second connection ring (81) is provided with two symmetrically distributed threaded holes three, and the hole wall of the threaded hole three is threadedly connected with a second positioning bolt (82); the outer wall of the second connection ring (81) is hinged with two second connecting rods (83); the top end of the rod wall of the second connecting rod (83) is hinged with two second sliders (84); the outer walls of the two second sliders (84) are slidably connected with a second electric push rod (85); the outer wall of the second electric push rod (85) is provided with two second horizontal sliding grooves (86) respectively matched with the two second sliders (84); the movable end of the second electric push rod (85) is fixedly connected with an electronic concrete hardness rebound tester (87); the outer wall of the second connection ring (81) is provided with a second connection groove (88) matched with the side end of the second electric push rod (85); and the movable end of the second electric push rod (85) is fixedly connected with an auxiliary mechanism (9).

7. A concrete wall maintenance spraying device according to claim 6, characterized in that: The auxiliary mechanism (9) comprises an L-shaped bracket (91) fixedly connected to the outer wall of the moving end of the second electric push rod (85); a touch switch (92) is fixedly embedded in the vertical portion of the L-shaped bracket (91); the touch switch (92) is located above the electronic concrete hardness rebound tester (87); a PLC controller (93) and a lithium battery (94) are fixedly connected to the inner wall of the top end of the outer cylinder (1); a mounting hole is provided on the outer wall of the top end of the outer cylinder (1); a rubber sealing block (95) is fixedly connected to the hole wall of the mounting hole; and a plurality of threading holes (96) are provided on the outer wall of the rubber sealing block (95).

8. A method for using the concrete wall maintenance spraying device according to claim 7, characterized in that: The method comprises the following steps: S1. When the building concrete inner wall needs to be cured after demoulding, firstly, a corresponding number of concrete wall curing spray devices are selected according to the position and area of ​​the building concrete inner wall, and the concrete wall curing spray devices are positioned and installed at the building concrete inner wall that needs to be cured. Then, the outer cylinder (1) is arranged vertically through the base (4), the adjusting screw (2) and the top block (54), and then the connecting cylinder (75) of each spray mechanism (7) is horizontally installed in the first connecting groove (714) of the corresponding spray mechanism (7), and the second electric push rod (85) is horizontally installed in the second connecting groove (88); S2. In step S1, after the connecting tube (75) of the spray mechanism (7) is installed horizontally, the spraying angle of the rotating seated spray head (713) of each spray mechanism (7) is adjusted so that the rotating seated spray heads (713) in the plurality of spray mechanisms (7) cooperate with each other and can spray the moisturizing liquid on the surface of the inner concrete wall of the building in an all-round and uniform manner, and at the same time, the detection end of the electronic concrete hardness rebound tester (87) in the concrete hardness detection mechanism (8) is arranged on the outer side of the inner wall surface of the building; S3. After the multiple rotating seated sprinkler heads (713) are completely positioned at different angles, the multiple rotating seated sprinkler heads (713) are connected in series to the water outlet of the electric regulating valve (11) through multiple PVC soft water pipes, and the water inlet of the electric regulating valve (11) is connected to the permanent and temporary combined fire hydrant in the building through the PVC soft water pipe, and water is supplied to the concrete wall maintenance sprinkler device through the permanent and temporary combined fire hydrant in the building; S4, the PLC controller (93) then controls the electric regulating valve (11) to open, so that the water in the permanent and temporary fire hydrants in the building is transported to the rotating seated sprinkler heads (713) adjusted at various angles through the PVC soft water pipeline, and the rotating seated sprinkler heads (713) spray water onto the inner concrete walls of the building. At the same time, in order to cope with the situation where the amount of spray water retained is insufficient due to the vertical state of the inner concrete walls of the building, the PLC controller (93) controls the electric regulating valve (11) to start spraying and curing for 5 minutes every 2 hours, so as to provide continuous and reliable hydration reaction conditions for the concrete; S5. When the concrete wall maintenance spraying device is in use, the SIM card wireless camera (58) can also remotely take pictures of the maintenance spraying site and transmit them back to the control room of the construction project. The SIM card wireless camera (58) can freely rotate 360 ​​degrees to take pictures, so that the staff can remotely and comprehensively understand the situation of the maintenance spraying site and monitor the effect of the maintenance spraying of the building concrete inner wall; S6, in step S5, while the SIM card wireless camera (58) is performing online monitoring, the cleaning component (6) is used to scrape away water stains attached to the surface of the glass cylinder (52); S7. Two minutes before each curing spraying of the building concrete inner wall, the PLC controller (93) controls the concrete hardness detection mechanism (8) and the auxiliary mechanism (9) to automatically detect the hardness of the building concrete inner wall. At the same time, the electronic concrete hardness rebound tester (87) can send the detected hardness value to the PLC controller (93) in the form of an electrical signal. The PLC controller (93) can control the opening of the electric regulating valve (11) according to the surface hardness of the building concrete inner wall.

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