A dam sub-bin pouring form

Abstract

The application belongs to the technical field of dam construction, and particularly relates to a dam sub-bin pouring formwork, which comprises two side formwork bases and a bottom formwork base, the two side formwork bases are detachably installed on the two sides of the end face of the bottom formwork base, the end face of each side formwork base is provided with a plurality of top formworks, and adjacent two top formworks are detachably connected. The application can improve the uniformity and efficiency of concrete pouring through sub-bin feeding pouring, and is not prone to concrete material collapse, thereby improving the pouring and forming quality of dam panels, dissipating the heat generated by the hydration heat of concrete, automatically adjusting the cooling temperature based on the change of the hydration heat temperature, ensuring the timely and effective cooling of the concrete temperature and maintaining the stability of the concrete material temperature, and reminding personnel to test the hardness of concrete based on the temperature of the hydration heat, so as to accurately include the time of removing the formwork.

Description

Technical Field

[0001] This invention belongs to the field of dam construction technology, and in particular relates to a dam compartmentalized casting template. Background Technology

[0002] After the main dam construction is completed, the concrete pouring of the dam face is required. When pouring the concrete for the dam face, special pouring formwork is needed to support it and allow the poured concrete to quickly set.

[0003] Currently, there are various support formwork options for pouring dam slope panels, such as the common slipform. Slipform refers to installing special guide rails on the dam slope. By pulling the slipform, the concrete can be flattened on the dam slope using the pressing mechanism on the slipform. However, during slipform pouring, the concrete in the pouring area needs to have a certain stability before the slipform can continue to move upward to pour concrete in the next area, resulting in relatively low efficiency. In addition, the installation of slipform is difficult, and special driving equipment is required at the top of the dam body to move the slipform.

[0004] Traditional formwork supports require concrete to enter from the top and then be poured into the bottom of the formwork. This means the concrete needs to travel a long distance, and as it flows downstream, it is obstructed by the reinforcing steel frame, which can easily lead to uneven concrete pouring. Furthermore, when pouring concrete on a large sloping surface, the slump of the concrete can also cause unevenness, affecting the quality of the panel formation. In addition, because the dam slope is inclined, it is very difficult to vibrate the poured concrete, resulting in poor performance. Summary of the Invention

[0005] The purpose of this invention is to address the above-mentioned problems by providing a dam compartmentalized casting template.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a dam compartmentalized casting template, comprising two side formwork bases and one bottom formwork base. The two side formwork bases are detachably installed on both sides of the end face of the bottom formwork base. Multiple top formwork bases are installed on the end faces of the two side formwork bases, and adjacent top formwork bases are detachably connected. Each top formwork base has a material inlet at the end away from the bottom formwork base, and a sealing plate is provided inside the material inlet. Each sealing plate has a guide groove fixedly installed on its end face, and the material inlet of each guide groove is in contact with the outlet of the adjacent guide groove. Each top formwork base is equipped with a set of lifting drive mechanisms for driving the sealing plate to move up and down. Each sealing plate has a trapezoidal protrusion integrally formed at its lower end, and each sealing plate is equipped with a water cooling mechanism.

[0007] Each of the top templates has multiple protruding pillars integrally formed on its end face, and the inner wall of the top template has multiple circular grooves corresponding to the positions of the protruding pillars. Each circular groove has a vibrating plate installed inside, and the vibrating plate and the protruding pillar on the same side are jointly equipped with a magnetic control drive mechanism. Each vibrating plate has an adjustment mechanism installed inside, which is used to adjust the temperature of the water cooling mechanism. Each of the top templates has a set of hardness measuring mechanisms installed on its end face. An extension plate is fixedly installed on the side wall of the bottom template base, and a trigger mechanism that cooperates with multiple adjustment mechanisms is installed on the end face of the extension plate. The trigger mechanism is used to supply air to each hardness measuring mechanism. A controller is fixedly installed on the end face of the extension plate.

[0008] Preferably, each of the lifting drive mechanisms includes two L-shaped plates fixedly disposed on the end face of the top template, and a hydraulic cylinder is fixedly inserted into the end face of the L-shaped plate, the output end of the hydraulic cylinder being fixedly connected to the end face of the sealing plate.

[0009] Preferably, each of the water-cooling mechanisms includes a water cavity formed inside the sealing plate. A water inlet pipe is fixedly inserted into one end of the cavity wall of the water cavity, and a drain pipe is fixedly inserted into the other end of the cavity wall. A heat insulation box is fixedly inserted into the end of the water inlet pipe. Multiple semiconductor cooling chips are fixedly inserted into the side wall of the heat insulation box. A connecting hose is fixedly inserted into the side wall of the heat insulation box, and the connecting hose is connected to the water inlet pipe. Each of the semiconductor cooling chips is electrically connected to the controller.

[0010] Preferably, each of the magnetically controlled drive mechanisms includes a mounting cavity formed inside the protrusion. A non-magnetic plate is slidably disposed inside the mounting cavity, and a set of non-magnetic springs are fixedly connected to the non-magnetic plate and the mounting cavity. Two sliding rods are fixedly installed at the lower end of the non-magnetic plate, and both sliding rods are slidably connected to the mounting cavity. The ends of the two sliding rods are fixedly connected to the end face of the vibrating plate. An AC electromagnet electrically connected to the controller is fixedly installed on the cavity wall of the mounting cavity, and a permanent magnet is fixedly installed at the lower end of the non-magnetic plate.

[0011] Preferably, each of the control mechanisms includes a mounting groove at the lower end of the vibrating plate, and the groove opening is encapsulated with a heat-conducting plate. An insulating pad is fixedly disposed inside the mounting groove, and a thermistor is fixedly installed at the end of the insulating pad. The mounting groove is filled with heat-conducting oil, and the thermistor is electrically connected to each semiconductor cooling chip through a controller.

[0012] Preferably, each of the hardness measuring mechanisms comprises multiple integrally formed barrels disposed on the end face of the top template, and a piston is slidably disposed inside each barrel. A top pressure rod is fixedly installed at the lower end of the piston, and the rod wall of the top pressure rod is slidably connected to the end face of the top template. A support spring is fixedly installed on both the piston and the inner wall of the barrel. A U-shaped pressure block is fixedly installed on the end face of the piston, and a fixing block is disposed on the inner side of the U-shaped pressure block. The fixing block is fixedly disposed inside the barrel. A pressure switch is fixedly installed on the end face of the fixing block. An air inlet pipe is fixedly inserted into the barrel end. A first buzzer is fixedly installed on the end face of the extension plate. The pressure switch is electrically connected to the first buzzer through a controller.

[0013] Preferably, the triggering mechanism includes an air box fixedly mounted on the end face of the extension plate. The side wall of the air box has an exhaust hole, and a normally open solenoid valve is installed inside the exhaust hole. An automatic air pressure switch and an electromagnetic switch are fixedly mounted inside the air box. A second buzzer is fixedly mounted on the end face of the extension plate, and the automatic air pressure switch is electrically connected to the second buzzer through a controller. The electromagnetic switch is electrically connected to each thermistor and to the normally open solenoid valve. An air pump is fixedly mounted on the end face of the extension plate, and an air supply pipe is fixedly mounted on the output end of the air pump. The air supply pipe is connected to the air box.

[0014] Preferably, the gas supply pipe is fixedly connected to a horizontal pipe, and both ends of the horizontal pipe are sealed. Multiple stainless steel flexible tubes are fixedly inserted into the wall of the horizontal pipe, and each stainless steel flexible tube has an installation tube fixedly installed at its end. A left-hand control valve and a right-hand control valve are fixedly installed inside the gas supply pipe, and the left-hand control valve and the right-hand control valve are located on both sides of the gas pump output end, respectively.

[0015] Compared with existing technologies, the advantages of a dam segmented casting formwork are:

[0016] 1. The side formwork, bottom formwork base, and top formwork work together to form a concrete pouring system for dam panels. The feed inlets, sealing plates, guide chutes, and lifting drive mechanisms work together to enable compartmentalized feeding and pouring by setting feed inlets on the end faces of each top formwork. This results in high overall efficiency, minimizing the obstruction of the concrete by the reinforcing steel frame and improving the uniformity of the concrete pouring. Furthermore, the compartmentalized feeding system, combined with the trapezoidal protrusions, maintains pressure on the poured concrete, ensuring good compactness in the poured areas and preventing concrete collapse, thus improving the forming quality of the dam panels.

[0017] 2. Through the set controller and water cooling mechanism, the heat of hydration of concrete in each compartment can be cooled down after concrete pouring to prevent excessive expansion of concrete due to excessive temperature caused by the heat of hydration. Through the cooperation of the set convex column, circular groove, vibrating plate and magnetic drive mechanism, the concrete in each compartment can be quickly vibrated during pouring to ensure full filling of concrete material. Through the set control mechanism, the vibrating plate can be used to measure the temperature of concrete material at multiple points and automatically adjust the cooling temperature of the water cooling mechanism based on the temperature change of the heat of hydration to ensure timely and effective cooling of concrete temperature and maintain the stability of concrete material temperature.

[0018] 3. The set hardness measuring mechanism can quickly measure the hardness of concrete when it is initially set, which makes it easier for personnel to accurately judge whether the formwork can be removed. The set extension plate and triggering mechanism can automatically remind personnel to measure the hardness based on the temperature change caused by the heat of hydration, and can also improve the driving force for hardness measurement, making it convenient to use. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram of a dam compartmentalized casting template provided by the present invention;

[0020] Figure 2 This is a top view schematic diagram of a dam compartmentalized casting template provided by the present invention;

[0021] Figure 3 This is a cross-sectional structural schematic diagram of a single top formwork of a dam compartmentalized casting formwork provided by the present invention;

[0022] Figure 4 This is a top view of the heat insulation box of a dam compartment casting template provided by the present invention;

[0023] Figure 5 This is a schematic diagram of the internal structure of the protruding column of a dam compartment casting template provided by the present invention;

[0024] Figure 6 This is a schematic diagram of the internal structure of the cylinder of a dam compartmentalized casting template provided by the present invention;

[0025] Figure 7 This is a schematic diagram of the triggering mechanism for a dam compartmentalized casting template provided by the present invention.

[0026] In the diagram: 1 Side mold base, 2 Bottom mold base, 3 Top mold plate, 4 Feed port, 5 Sealing plate, 6 Guide groove, 7 Lifting drive mechanism, 701 L-shaped plate, 702 Hydraulic cylinder, 8 Trapezoidal protrusion, 9 Water cooling mechanism, 901 Water cavity, 902 Water inlet pipe, 903 Drain pipe, 904 Heat insulation box, 905 Semiconductor cooling chip, 906 Connecting hose, 10 Protrusion, 11 Circular groove, 12 Vibrating plate, 13 Magnetic control drive mechanism, 131 Mounting cavity, 132 Non-magnetic plate, 133 Non-magnetic spring, 134 Slide rod, 135 AC electromagnet, 136 Permanent magnet, 14 Control mechanism, 141 Mounting groove, 142 Heat conduction plate, 143 Insulating pad 144 Thermistor, 145 Thermal oil, 15 Hardness measuring mechanism, 151 Barrel, 152 Piston, 153 Top pressure rod, 154 Support spring, 155 U-shaped pressure block, 156 Fixing block, 157 Pressure switch, 158 Inlet pipe, 159 First buzzer, 16 Extension plate, 17 Trigger mechanism, 171 Air box, 172 Exhaust port, 173 Normally open solenoid valve, 174 Air pump, 175 Air supply pipe, 176 Automatic air pressure switch, 177 Electromagnetic switch, 178 Second buzzer, 18 Controller, 19 Horizontal pipe, 20 Stainless steel hose, 21 Mounting pipe, 22 Left-hand control valve, 23 Right-hand control valve. Detailed Implementation

[0027] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0028] like Figures 1-7 As shown, a dam segmented casting formwork includes two side formwork bases 1 and one bottom formwork base 2. The two side formwork bases 1 are detachably installed on both sides of the end face of the bottom formwork base 2. Multiple top formwork plates 3 are installed on the end face of the two side formwork bases 1, and adjacent top formwork plates 3 are detachably connected. Each top formwork plate 3 has a material inlet 4 at the end away from the bottom formwork base 2, and a sealing plate 5 is provided inside the material inlet 4. A guide groove 6 is fixedly installed on the end face of each sealing plate 5, and the material inlet 4 of each guide groove 6 is... All of them are in contact with the discharge port of the adjacent guide trough 6. Each top template 3 is equipped with a set of lifting drive mechanism 7 for driving the sealing plate 5 to move up and down. Each set of lifting drive mechanism 7 includes two L-shaped plates 701 fixedly set on the end face of the top template 3. A hydraulic cylinder 702 is fixedly inserted into the end face of the L-shaped plate 701. The output end of the hydraulic cylinder 702 is fixedly connected to the end face of the sealing plate 5. The hydraulic cylinder 702 can control the up and down movement of the sealing plate 5, thereby opening or closing the feed port 4.

[0029] Each sealing plate 5 has a trapezoidal protrusion 8 integrally formed at its lower end. Each sealing plate 5 is equipped with a water cooling mechanism 9, and each water cooling mechanism 9 includes a water cavity 901 formed inside the sealing plate 5. A water inlet pipe 902 is fixedly inserted into one end of the cavity wall of the water cavity 901, and a drain pipe 903 is fixedly inserted into the other end of the cavity wall of the water cavity 901. A heat insulation box 904 is fixedly inserted into the end of the water inlet pipe 902, and multiple semiconductor cooling chips 905 are fixedly inserted into the side wall of the heat insulation box 904 for heat insulation. A connecting hose 906 is fixedly inserted into the side wall of the box 904, and the connecting hose 906 is connected to the water inlet pipe 902. Each thermoelectric cooler 905 is electrically connected to the controller 18. The cooling end of the thermoelectric cooler 905 is located inside the heat insulation box 904. A fan (not shown in the figure) is installed on the top of the heat insulation box 904. The fan is used to dissipate heat from the hot end of each thermoelectric cooler 905. The drain pipe 903 is connected to the external drain pipe by a hose.

[0030] Each top template 3 has multiple protruding pillars 10 integrally formed on its end face, and the inner wall of the top template 3 has multiple circular grooves 11 corresponding to the positions of the protruding pillars 10. Each circular groove 11 has a vibrating plate 12 installed inside it. The vibrating plate 12 and the protruding pillar 10 on the same side are jointly mounted with a magnetic drive mechanism 13. Each magnetic drive mechanism 13 includes a mounting cavity 131 inside the protruding pillar 10. A non-magnetic plate 132 is slidably disposed inside the mounting cavity 131, and a set of non-magnetic springs 133 are fixedly connected to the non-magnetic plate 132 and the mounting cavity 131. The lower part of the non-magnetic plate 132... Two sliding rods 134 are fixedly installed at the end, and both sliding rods 134 are slidably connected to the mounting cavity 131. The rod ends of both sliding rods 134 are fixedly connected to the end face of the vibrating plate 12. An AC electromagnet 135 electrically connected to the controller 18 is fixedly installed on the cavity wall of the mounting cavity 131. A permanent magnet 136 is fixedly installed at the lower end of the non-magnetic plate 132. Since the direction of the current flowing into the AC electromagnet 135 changes periodically, the magnetic poles of the AC electromagnet 135 can change periodically, thereby causing the AC electromagnet 135 to periodically attract and push the permanent magnet 136.

[0031] Each vibrating plate 12 is equipped with a control mechanism 14, which is used to adjust the temperature of the water cooling mechanism 9. Each control mechanism 14 includes a mounting groove 141 at the lower end of the vibrating plate 12, and a heat-conducting plate 142 is encapsulated at the opening of the mounting groove 141. An insulating pad 143 is fixedly installed inside the mounting groove 141, and a thermistor 144 is fixedly installed at the end of the insulating pad 143. The mounting groove 141 is filled with heat-conducting oil 145. The thermistor 144 is electrically connected to each semiconductor cooling chip 905 through the controller 18. When the temperature at the thermistor 144 rises, the resistance value of the thermistor 144 itself decreases. At this time, the current flowing into the semiconductor cooling chip 905 increases.

[0032] Each top template 3 has a set of hardness measuring mechanisms 15 installed on its end face. Each set of hardness measuring mechanisms 15 includes multiple integrally formed barrels 151 on the end face of the top template 3. A piston 152 is slidably installed inside each barrel 151. A pressing rod 153 is fixedly installed at the lower end of the piston 152, and the rod wall of the pressing rod 153 is slidably connected to the end face of the top template 3. A support spring 154 is fixedly installed on both the piston 152 and the inner wall of the barrel 151. A U-shaped pressure block 155 is fixedly installed on the end face of the piston 152, and a fixing block 156 is provided on the inner side of the U-shaped pressure block 155. The fixing block 156 is located inside the barrel 151 and fixedly installed. A pressure switch 157 is fixedly installed on the end face of the fixed block 156. An air inlet pipe 158 is fixedly inserted into the end of the barrel 151. A first buzzer 159 is fixedly installed on the end face of the extension plate 16. The pressure switch 157 is electrically connected to the first buzzer 159 through the controller 18. After the concrete material has solidified, the top pressure rod 153 cannot poke the concrete material and moves down under the action of air pressure. However, when the concrete material is not solidified enough, the top pressure rod 153 will poke the concrete material and move down under the action of air pressure. When the moving contact of the pressure switch 157 is closed, the connection circuit between the first buzzer 159 and the controller 18 can be connected, causing the first buzzer 159 to sound an alarm.

[0033] An extension plate 16 is fixedly installed on the side wall of the bottom mold base 2, and a trigger mechanism 17 that cooperates with multiple control mechanisms 14 is installed on the end face of the extension plate 16. The trigger mechanism 17 is used to supply air to each hardness measuring mechanism 15. The trigger mechanism 17 includes an air box 171 fixedly installed on the end face of the extension plate 16. An exhaust hole 172 is opened on the side wall of the air box 171, and a normally open solenoid valve 173 is installed inside the exhaust hole 172. An automatic air pressure switch 176 and a solenoid switch 177 are fixedly installed inside the air box 171. A second buzzer 178 is fixedly installed on the end face of the extension plate 16, and the air pressure... Automatic switch 176 is electrically connected to second buzzer 178 via controller 18. Electromagnetic switch 177 is electrically connected to each thermistor 144 and electrically connected to normally open solenoid valve 173. Air pump 174 is fixedly installed on the end face of extension plate 16, and air supply pipe 175 is fixedly installed on the output end of air pump 174. Air supply pipe 175 is connected to air box 171. When the moving contact of electromagnetic switch 177 is closed, normally open solenoid valve 173 cannot be energized and remains open. When the moving contact of electromagnetic switch 177 is not attracted, normally open solenoid valve 173 remains energized and closed.

[0034] A controller 18 is fixedly installed on the end face of the extension plate 16. The air supply pipe 175 is fixedly connected to the horizontal pipe 19, and both ends of the horizontal pipe 19 are sealed. Multiple stainless steel hoses 20 are fixedly inserted into the wall of the horizontal pipe 19, and an installation pipe 21 is fixedly installed at the end of each stainless steel hose 20. A left-hand control valve 22 and a right-hand control valve 23 are fixedly installed inside the air supply pipe 175. The left-hand control valve 22 and the right-hand control valve 23 are located on both sides of the output end of the air pump 174. By closing the left-hand control valve 22, opening the right-hand control valve 23, and connecting the installation pipe 21 to the corresponding air inlet pipe 158, the air pump 174 can supply air to the corresponding barrel 151.

[0035] The operating principle of the present invention is explained as follows: Two side formwork bases 1 are installed in the dam area to be poured. Then, the bottom formwork base 2 is installed at the ends of the two side formwork bases 1, and waterproof measures are taken at the contact points between the side formwork bases 1 and the bottom formwork base 2 and the dam body. Then, each top formwork 3 is installed on the two side formwork bases 1 in sequence, and the two adjacent top formwork bases 3 are assembled and fixed. Then, each connecting hose 906 is fixedly connected to the external water supply pipeline, and the drainage pipe 903 is fixedly connected to the external drainage pipeline. Then, the concrete material guide channel / pipe at the top of the dam body is guided to the guide channel 6 located at the uppermost side of the dam body. Then, the mixed concrete material can be introduced into the guide channel 6 through the concrete material guide channel / pipe by the concrete transport truck.

[0036] During concrete pouring, the two hydraulic cylinders 702 at the bottom of the dam body are activated, causing the sealing plate 5 to move upwards to a certain height. Then, the hydraulic cylinders 702 are closed, opening the feed inlet 4. The concrete material discharged along the guide chute 6 enters the top formwork 3 through this feed inlet 4. After a certain amount of concrete is delivered, the concrete feeding is stopped, and the sealing plate 5 is lowered by the hydraulic cylinders 702 to reseal the feed inlet 4. Subsequently, the process is controlled... Device 18 activates the AC electromagnet 135 inside the top template 3, connecting the AC electromagnet 135 to an AC power source. When the AC power source supplies a positive current to the AC electromagnet 135, the electromagnet 135, under the attraction of opposite poles, attracts the permanent magnet 136, causing the non-magnetic plate 132 to move downwards. With the cooperation of the two sliding rods 134, the vibrating plate 12 can be moved downwards. When the AC power source periodically supplies a reverse current to the AC electromagnet 135, the magnetic poles of the AC electromagnet 135 change, and the magnetic poles of the electromagnet 135 change accordingly. Under the repulsive force, the permanent magnet 136 can be driven to drive the vibrating plate 12 to quickly rebound and reset. Since the current direction of the AC power supply changes periodically, the vibrating plate 12 can move up and down continuously, thereby vibrating the concrete material. After vibrating for a certain period of time (usually 10 minutes), the connection circuit between the AC electromagnet 135 and the AC power supply is disconnected by the controller 18. Then, the sealing plate 5 is moved up again by the hydraulic cylinder 702 to open the feed port 4, and the concrete material continues to be fed into the top template 3 through the guide chute 6 and the feed port 4 until the concrete material fills the top template 3. Then, the sealing plate 5 is moved down by the hydraulic cylinder 702 to close the feed port 4. At this time, under the squeezing action of the trapezoidal protrusion 8 on the sealing plate 5, the concrete material can be pressurized, increasing the compactness of the already poured concrete material inside the top template 3. Moreover, at the pressure position of the trapezoidal protrusion 8, the concrete material is subjected to greater squeezing force, so the subsequent upper concrete material will not affect the already poured concrete material.

[0037] After the concrete is poured inside the bottommost top formwork 3, the sealing plates 5 of the top formwork 3 are opened sequentially from bottom to top. After each sealing plate 5 is opened, the above operation is repeated. After the concrete is poured inside the top formwork 3 at that location, the sealing plates 5 of the next top formwork 3 are opened sequentially until the concrete inside all the top formwork 3 is poured.

[0038] After the concrete is poured, water is supplied through an external water supply pipeline. The water enters the interior of each inlet pipe 902 through each connecting hose 906, and then flows through the water chamber 901 into the drainage pipeline from the drain pipe 903. When cooling the poured concrete, the controller 18 activates each semiconductor cooling chip 905. The cold end of each semiconductor cooling chip 905 can transfer the heat inside the insulation box 904 to the outside of the insulation box 904 for dissipation, thereby cooling the water inside the inlet pipe 902 and ensuring the heat absorption and cooling effect of the water on the concrete.

[0039] When cooling the concrete, the controller 18 synchronously connects the series circuit of each thermistor 144 and the corresponding multiple semiconductor cooling chips 905. If the temperature of the concrete is high due to the heat of hydration, the heat will be transferred to the corresponding thermistor 144 through the heat-conducting plate 142 and the heat-conducting oil 145. The temperature of the thermistor 144 increases, which will reduce its resistance value. At this time, the current flowing into the corresponding semiconductor cooling chip 905 increases, thus increasing the cooling power of the semiconductor cooling chip 905. This can improve the cooling effect of the water on the concrete, ensure that the heat of the concrete inside each top formwork 3 is dissipated in time, and maintain the stability of the internal temperature of the concrete.

[0040] In the initial stage after concrete pouring, due to the intense hydration heat reaction, the concrete temperature is high, resulting in a decrease in the resistance of each thermistor 144. At this time, the resistance of the circuit connecting the electromagnetic switch 177 and each thermistor 144 is low, while the current flowing into the electromagnetic switch 177 is relatively large. The moving contact of the electromagnetic switch 177 is in a magnetically closed state. When the moving contact of the electromagnetic switch 177 is magnetically closed, the connection circuit between the normally open solenoid valve 173 and the controller 18 can be disconnected, meaning the normally open solenoid valve 173 remains open. As the concrete gradually solidifies, the hydration heat phenomenon gradually diminishes, and the temperature generated by the hydration heat gradually decreases and stabilizes. As the temperature decreases, the resistance of the thermistors 144 increases. At this time, because the current flowing into the electromagnetic switch 177 is small, the moving contact of the electromagnetic switch 177 will spring back to its original position under the action of its elastic element. At this point, the electromagnetic switch 177 can connect to the normally open solenoid valve. The connection circuit between 173 and controller 18 is such that the normally open solenoid valve 173 is closed at this time. After the concrete is poured, when personnel supply water through the external water supply pipeline, personnel need to start the air pump 174 synchronously through controller 18 and keep the left control valve 22 open and the right control valve 23 closed. At this time, the air delivered by the air pump 174 will enter the air box 171 through the air supply pipe 175. When the normally open solenoid valve 173 is open, the air delivered into the air box 171 will be discharged directly through the exhaust hole 172. When the normally open solenoid valve 173 is closed (i.e., the heat generated by the hydration heat reaction is reduced due to the solidification of the concrete), the air delivered into the air box 171 cannot be discharged. As the air pressure inside the air box 171 increases, the moving contact of the automatic air pressure switch 176 will be automatically pushed to close under the action of the air pressure, thereby connecting the connection circuit between the second buzzer 178 and controller 18. When the second buzzer 178 sounds, it indicates that the concrete has initially solidified.

[0041] Upon hearing the second buzzer 178, personnel shut down the air pump 174 and securely connect each installation pipe 21 to the air inlet pipe 158 on the corresponding top template 3 and multiple cylinders 151. Then, the left control valve 22 is closed, and the right control valve 23 is opened. Next, the test button on the controller 18 is pressed. At this time, the controller 18 controls the air pump 174 to operate for 2 minutes at a set time. The air supplied by the air pump 174 enters each cylinder 151 through the air supply pipe 175, horizontal pipe 19, various stainless steel hoses 20, each installation pipe 21, and each air inlet pipe 158. Under air pressure, the piston 152 inside the cylinder 151 drives the top pressure rod 153 downwards. The top pressure rod 153 abuts against the solidified concrete. If the concrete is sufficiently solidified, the top pressure rod 153 cannot move downwards; if the concrete is insufficiently solidified, the top pressure rod 153 will move downwards due to insufficient resistance from the concrete. At this time, the piston 152... This will cause the U-shaped pressure block 155 to move down synchronously, thereby pressing the moving contact of the pressure switch 157 and closing the moving contact of the pressure switch 157. At this time, the connection circuit between the first buzzer 159 and the controller 18 can be connected, so the first buzzer 159 can sound an alarm. If the first buzzer 159 sounds an alarm, it means that the concrete inside the top formwork 3 is not solidified enough, and the top formwork 3 cannot be removed at this time. If the first buzzer 159 does not sound, it means that the concrete material here has solidified and the top formwork 3 here can be removed. After the concrete hardness test at one top formwork 3 is qualified, the personnel will remove each installation pipe 21 and install it to the air inlet pipe 158 at the next top formwork 3. Then, the concrete solidification hardness test at the next top formwork 3 will be carried out according to the above steps until all the concrete solidification tests are qualified. Then, the side formwork base 1, bottom formwork base 2 and top formwork 3 and other components will be removed.

[0042] In actual use, at least two sets of templates should be used, and the two sets of templates can be raised and used alternately to ensure the efficiency of dam panel pouring.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A dam segmented casting formwork, comprising two side formwork bases and one bottom formwork base, characterized in that, The two side mold bases are detachably installed on both sides of the end face of the bottom mold base. Multiple top mold plates are installed on the end face of the two side mold bases, and adjacent top mold plates are detachably connected. Each top mold plate has a feeding port at the end away from the bottom mold base, and a sealing plate is provided inside the feeding port. Each sealing plate has a guide groove fixedly installed on its end face, and the feeding port of each guide groove is in contact with the discharge port of the adjacent guide groove. Each top mold plate is equipped with a lifting drive mechanism for driving the sealing plate to move up and down. Each sealing plate has a trapezoidal protrusion integrally formed at its lower end, and each sealing plate is equipped with a water cooling mechanism. Each of the top templates has multiple protruding pillars integrally formed on its end face, and the inner wall of the top template has multiple circular grooves corresponding to the positions of the protruding pillars. Each circular groove has a vibrating plate installed inside, and the vibrating plate and the protruding pillar on the same side are jointly equipped with a magnetic control drive mechanism. Each vibrating plate has an adjustment mechanism installed inside, which is used to adjust the temperature of the water cooling mechanism. Each of the top templates has a set of hardness measuring mechanisms installed on its end face. An extension plate is fixedly installed on the side wall of the bottom template base, and a trigger mechanism that cooperates with multiple adjustment mechanisms is installed on the end face of the extension plate. The trigger mechanism is used to supply air to each hardness measuring mechanism. A controller is fixedly installed on the end face of the extension plate. The control mechanism includes a thermistor. Each set of hardness measuring mechanisms includes multiple integrally formed barrels on the end face of the top template. A piston is slidably arranged inside each barrel. A top pressure rod is fixedly installed at the lower end of the piston, and the rod wall of the top pressure rod is slidably connected to the end face of the top template. A support spring is fixedly installed on both the piston and the inner wall of the barrel. A U-shaped pressure block is fixedly installed on the end face of the piston, and a fixing block is provided on the inner side of the U-shaped pressure block. The fixing block is fixedly located inside the barrel. A pressure switch is fixedly installed on the end face of the fixing block. An air inlet pipe is fixedly inserted into the barrel end. A first buzzer is fixedly installed on the end face of the extension plate. The pressure switch is electrically connected to the first buzzer through a controller. The triggering mechanism includes an air box fixedly mounted on the end face of the extension plate. The side wall of the air box has an exhaust hole, and a normally open solenoid valve is installed inside the exhaust hole. An automatic air pressure switch and an electromagnetic switch are fixedly mounted inside the air box. A second buzzer is fixedly mounted on the end face of the extension plate, and the automatic air pressure switch is electrically connected to the second buzzer through a controller. The electromagnetic switch is electrically connected to each thermistor and to the normally open solenoid valve. An air pump is fixedly mounted on the end face of the extension plate, and an air supply pipe is fixedly mounted on the output end of the air pump. The air supply pipe is connected to the air box. The gas pipeline is internally equipped with a left-hand control valve and a right-hand control valve, which are located on both sides of the gas pump output end.

2. The dam section casting template according to claim 1, characterized in that, Each lifting drive mechanism includes two L-shaped plates fixedly installed on the end face of the top template, and a hydraulic cylinder is fixedly inserted into the end face of the L-shaped plate. The output end of the hydraulic cylinder is fixedly connected to the end face of the sealing plate.

3. The dam segmented casting template according to claim 1, characterized in that, Each of the aforementioned water-cooling mechanisms includes a water cavity formed inside the sealing plate. A water inlet pipe is fixedly inserted into one end of the cavity wall of the water cavity, and a drain pipe is fixedly inserted into the other end of the cavity wall. A heat insulation box is fixedly inserted into the end of the water inlet pipe. Multiple semiconductor cooling chips are fixedly inserted into the side wall of the heat insulation box. A connecting hose is fixedly inserted into the side wall of the heat insulation box, and the connecting hose is connected to the water inlet pipe. Each of the aforementioned semiconductor cooling chips is electrically connected to the controller.

4. The dam section casting template according to claim 1, characterized in that, Each of the aforementioned magnetically controlled drive mechanisms includes a mounting cavity formed inside the protrusion. A non-magnetic plate is slidably disposed inside the mounting cavity, and a set of non-magnetic springs are fixedly connected to the non-magnetic plate and the mounting cavity. Two sliding rods are fixedly installed at the lower end of the non-magnetic plate, and both sliding rods are slidably connected to the mounting cavity. The ends of the two sliding rods are fixedly connected to the end face of the vibrating plate. An AC electromagnet electrically connected to the controller is fixedly installed on the cavity wall of the mounting cavity, and a permanent magnet is fixedly installed at the lower end of the non-magnetic plate.

5. A dam section casting template according to claim 3, characterized in that, Each of the aforementioned control mechanisms includes a mounting groove located at the lower end of the vibrating plate, and the groove opening is encapsulated with a heat-conducting plate. An insulating pad is fixedly installed inside the mounting groove, and a thermistor is fixedly installed at the end of the insulating pad. The mounting groove is filled with heat-conducting oil, and the thermistor is electrically connected to each semiconductor cooling chip through a controller.

6. A dam section casting template according to claim 1, characterized in that, The gas transmission pipe is fixedly connected to a horizontal pipe, and both ends of the horizontal pipe are sealed. Multiple stainless steel flexible tubes are fixedly inserted into the wall of the horizontal pipe, and each stainless steel flexible tube is fixedly installed with an installation tube at its end.

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