Quantitative spraying device for commercial concrete production

Abstract

The utility model discloses a kind of quantitative spraying devices for commercial concrete production, it is related to concrete production technical field, including bottom plate, two groups of installation ring are fixedly connected on the bottom plate upper surface right side, two groups The water tank is fixedly connected between the installation ring, the water tank rear side right end is fixedly connected with water inlet pipe, the first check valve is installed in the water inlet pipe, the water outlet pipe is fixedly connected with the water tank right side middle part, the second check valve is installed in the water outlet pipe, the water tank front side middle part is fixedly connected with guide sleeve, the bottom plate upper surface left side is provided with quantitative assembly. Advantage lies in: servo motor+threaded rod transmission is used, threaded rod is rotated by synchronous wheel synchronous belt drive, moving plate is smoothly slid along moving guide rail, the displacement error of piston rod to push sealing piston is ≤0.1mm, single quantitative error is controlled within 1%, can accurately control the amount of water, completely adapt to the stringent requirement of C50 and above high-strength concrete to water amount.

Description

Technical Field

[0001] This utility model relates to the field of concrete production technology, specifically to a quantitative spraying device for commercial concrete production. Background Technology

[0002] Concrete is a general term for engineering composite materials in which aggregates are bound together by cementing materials. The term "concrete" usually refers to cement concrete, also known as ordinary concrete, which is made by mixing cement as the cementing material, sand and gravel as aggregates, and water (which may contain admixtures and additives) in a certain proportion. It is widely used in civil engineering.

[0003] For example, Chinese Patent (CN218398844U) discloses a quantitative spraying device for commercial concrete production. This utility model relates to the technical field of concrete. This utility model includes a mounting frame and a top plate. A water tank is fixedly connected to the inner bottom wall of the mounting frame. The top plate is fixedly connected to the upper end of the mounting frame. A water storage tank is provided on the upper side of the top plate. A piston is slidably connected inside the water storage tank. A push-pull rod is fixedly connected to one side of the piston. A water outlet pipe is fixedly connected to one side of the water storage tank. A sprinkler pipe is fixedly connected to the other side of the water outlet pipe. A suction pipe is fixedly connected to one side of the water storage tank and is connected to the water tank. A reciprocating mechanism is provided on the piston and the push-pull rod. The water storage tank, push-pull rod, and piston work together to draw water from the water tank. The push-pull rod pushes the piston to quantitatively spray water from the sprinkler pipe into the concrete.

[0004] This type of device uses a reciprocating transmission structure of "half gear + spring". The spring is prone to fatigue deformation due to long-term reciprocating load, which leads to deviation in the piston movement distance. Furthermore, due to the characteristics of the spring, it cannot be fully compressed, which results in the piston not being able to fully fit with the inner wall of the water storage tank. At the same time, the intermittent meshing transmission accuracy of the half gear and the tooth groove is low, and the single quantitative error can reach 5%-8%, which cannot meet the stringent water requirements of C50 and above high-strength concrete. In order to solve the above problems, a quantitative spraying device for commercial concrete production is proposed. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a quantitative spraying device for commercial concrete production. It solves the problems of the current type of device which adopts a reciprocating transmission structure of "half gear + spring". The spring is prone to fatigue deformation due to long-term reciprocating load, which leads to deviation in piston movement distance. Furthermore, due to the characteristics of the spring, it cannot be fully compressed, which results in the piston not being able to fully fit with the inner wall of the water storage tank. At the same time, the intermittent meshing transmission accuracy of the half gear and the tooth groove is low, and the single quantitative error can reach 5%-8%, which cannot meet the stringent water requirements of C50 and above high-strength concrete.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a quantitative spraying device for commercial concrete production, comprising a base plate, two sets of mounting rings fixedly connected to the right side of the upper surface of the base plate, a water tank fixedly connected between the two sets of mounting rings, an inlet pipe fixedly connected to the right rear end of the water tank, a first one-way valve installed inside the inlet pipe, an outlet pipe fixedly connected to the middle right side of the water tank, a second one-way valve installed inside the outlet pipe, a guide sleeve fixedly connected to the middle front side of the water tank, and a quantitative component provided on the left side of the upper surface of the base plate.

[0007] Preferably, a spray pipe is fixedly connected to the right end of the water outlet pipe, a plurality of spray heads are fixedly connected to the bottom of the spray pipe, and end caps are fixedly connected to both the front and rear ends of the spray pipe via flanges.

[0008] Preferably, the quantitative component includes a fixed plate, a movable guide rail, and a threaded rod. The fixed plate is fixedly connected to the right side of the upper surface of the base plate, the movable guide rail is fixedly connected between the fixed plate and the left mounting ring, and the threaded rod is rotatably connected between the fixed plate and the left mounting ring and is located behind the movable guide rail.

[0009] Preferably, a movable plate is slidably connected above the movable guide rail via a sliding block, and the rear side of the movable plate is threadedly connected to a threaded rod via a threaded seat. The left end of the threaded rod passes through the left side of the fixed plate and is fixedly connected to a second synchronous pulley.

[0010] Preferably, a servo motor is fixedly connected to the upper right side of the fixed plate, and the output end of the servo motor passes through the left side of the fixed plate and is fixedly connected to a first synchronous pulley. The first synchronous pulley is connected to a second synchronous pulley via a synchronous belt.

[0011] Preferably, a guide rod is fixedly connected to the upper right side of the movable plate, the end of the guide rod extends into the interior of the guide sleeve, and the guide rod is slidably connected to the guide sleeve.

[0012] Preferably, a piston rod is fixedly connected to the upper right side of the movable plate behind the guide rod, and a sealing piston is fixedly connected to the right end of the piston rod. The sealing piston is slidably connected to the inside of the water tank, and a sealing ring is fixedly connected to the sealing piston on the side near the inner wall of the water tank.

[0013] Compared with existing technologies, the advantages of this utility model are as follows: This utility model abandons the traditional low-precision structure of "half-gear + spring" and adopts a servo motor + threaded rod transmission. The threaded rod is driven to rotate synchronously by the synchronous wheel, and the moving plate slides smoothly along the moving guide rail. The displacement error of the piston rod pushing the sealing piston is ≤0.1mm, and the single quantitative error is controlled within 1% (compared to 5%-8% for traditional devices). It can accurately control the spray water volume and is fully adapted to the stringent water volume requirements of C50 and above high-strength concrete. The sealing ring on the outside of the sealing piston fits tightly with the inner wall of the water tank. With the guiding action of the guide rod and guide sleeve, the piston tilting is prevented. The design eliminates leakage or volume deviation caused by tilting, further improving quantitative accuracy. With no fatigue-prone components like springs, the servo motor and threaded rod drive have a long lifespan, reducing frequent maintenance due to spring deformation. The end caps at both ends of the spray pipe are fixed with flanges, facilitating disassembly and cleaning of spray head blockages, improving maintenance efficiency. The first one-way valve on the inlet pipe only allows external water to enter the water tank, while the second one-way valve on the outlet pipe only allows water from the water tank to flow into the spray pipe. This bidirectional one-way control prevents backflow during spraying (e.g., water tank suction when the sealing piston retracts, preventing backflow into the outlet pipe), ensuring that the water volume for each spray comes entirely from the water tank's quantitative volume, without any additional water replenishment interference. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a structural schematic diagram of the present invention from another perspective;

[0016] Figure 3 This is a schematic diagram of the quantitative component structure in this utility model.

[0017] The numbers on the map are:

[0018] 1. Base plate; 2. Mounting ring; 3. Water tank; 4. Guide sleeve; 5. Inlet pipe; 6. First check valve; 7. Outlet pipe; 8. Second check valve; 9. Spray pipe; 10. Spray head; 11. End cap; 12. Metering component; 1201. Fixing plate; 1202. Servo motor; 1203. First synchronous pulley; 1204. Threaded rod; 1205. Second synchronous pulley; 1206. Moving guide rail; 1207. Moving plate; 1208. Piston rod; 1209. Sealing piston; 1210. Guide rod. Detailed Implementation

[0019] In the description of this utility model, it should be noted that the terms "front", "up", "down", "left", "right", "vertical", "horizontal", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0021] Reference Figure 1 - Figure 3 As shown, a quantitative spraying device for commercial concrete production includes a base plate 1. Two sets of mounting rings 2 are fixedly connected to the right side of the upper surface of the base plate 1. A water tank 3 is fixedly connected between the two sets of mounting rings 2. A water inlet pipe 5 is fixedly connected to the rear right end of the water tank 3. A first one-way valve 6 is installed inside the water inlet pipe 5. A water outlet pipe 7 is fixedly connected to the middle right side of the water tank 3. A second one-way valve 8 is installed inside the water outlet pipe 7. A guide sleeve 4 is fixedly connected to the middle front side of the water tank 3. A quantitative component 12 is set on the left side of the upper surface of the base plate 1. The water inlet pipe 5 (including the first one-way valve 6) at the rear right end of the water tank 3 can realize the one-way delivery of external water source to the water tank 3, avoid backflow of water in the water tank 3, and ensure smooth water supply. The water outlet pipe 7 (including the second one-way valve 8) at the middle right side of the water tank 3 can realize the one-way delivery of water in the water tank 3 to the spray pipe 9, and prevent the spray water backflow from affecting the quantitative accuracy.

[0022] Furthermore, a spray pipe 9 is fixedly connected to the right end of the water outlet pipe 7, and several spray heads 10 are fixedly connected to the bottom of the spray pipe 9. Both the front and rear ends of the spray pipe 9 are fixedly connected to end caps 11 through flanges. The end caps 11 can be disassembled, thereby expanding the spray pipe 9, greatly improving the adaptability of the device to different operating scenarios, and enhancing the flexibility of the device.

[0023] Specifically, the quantitative component 12 includes a fixed plate 1201, a movable guide rail 1206, and a threaded rod 1204. The fixed plate 1201 is fixedly connected to the right side of the upper surface of the base plate 1. The movable guide rail 1206 is fixedly connected between the fixed plate 1201 and the left mounting ring 2. The threaded rod 1204 is rotatably connected between the fixed plate 1201 and the left mounting ring 2 and is located behind the movable guide rail 1206. The movable guide rail 1206 provides precise guidance for the sliding of the movable plate 1207, ensuring that the movable plate 1207 can only move smoothly in the set direction, avoiding deviation that affects the quantitative accuracy. The threaded rod 1204 drives the movable plate 1207 to move through the threaded transmission. Its layout behind the movable guide rail 1206 is reasonable, neither affecting the sliding guidance of the movable plate 1207 nor affecting the stable transmission of power. The overall structural design provides a stable guarantee for the quantitative component 12 to achieve precise displacement control.

[0024] Furthermore, a moving plate 1207 is slidably connected above the moving guide rail 1206 via a sliding block. The rear side of the moving plate 1207 is threadedly connected to the threaded rod 1204 via a threaded seat. The left end of the threaded rod 1204 passes through the left side of the fixed plate 1201 and is fixedly connected to a second synchronous pulley 1205. The second synchronous pulley 1205 can cooperate with the first synchronous pulley 1203 to realize power transmission. The synchronous belt drive ensures that the power of the servo motor 1202 can be stably and accurately transmitted to the threaded rod 1204, avoiding slippage or deviation during the power transmission process, and providing power guarantee for the precise movement of the moving plate 1207.

[0025] Furthermore, a servo motor 1202 is fixedly connected to the upper right side of the fixed plate 1201. The output end of the servo motor 1202 passes through the left side of the fixed plate 1201 and is fixedly connected to the first synchronous pulley 1203. The first synchronous pulley 1203 is connected to the second synchronous pulley 1205 through a synchronous belt. The servo motor 1202 has high-precision speed control capability. By adjusting the speed, the rotation angle of the threaded rod 1204 can be precisely controlled, thereby precisely controlling the moving distance of the moving plate 1207. This provides a high-precision power control basis for the device to achieve quantitative spraying, ensuring that the water volume error of each spray is extremely small. The servo motor 1202 is controlled by an external controller (not shown).

[0026] Furthermore, a guide rod 1210 is fixedly connected to the upper right side of the movable plate 1207. The end of the guide rod 1210 extends into the interior of the guide sleeve 4, and the guide rod 1210 is slidably connected to the guide sleeve 4. The cooperation between the guide rod 1210 and the guide sleeve 4 can prevent the movable plate 1207 from deflecting when it drives the piston rod 1208 and the sealing piston 1209 to move, ensuring that the sealing piston 1209 can always slide smoothly along the inner wall of the water tank 3.

[0027] Furthermore, a piston rod 1208 is fixedly connected to the upper right side of the movable plate 1207 behind the guide rod 1210. A sealing piston 1209 is fixedly connected to the right end of the piston rod 1208. The sealing piston 1209 is slidably connected to the inside of the water tank 3, and a sealing ring is fixedly connected to the side of the sealing piston 1209 near the inner wall of the water tank 3. The sealing ring can enhance the sealing performance and prevent water in the water tank 3 from leaking from the gap between the sealing piston 1209 and the inner wall of the water tank 3.

[0028] Working principle: Connect the inlet pipe 5 to the external water source, ensuring the first one-way valve 6 is forward-biased (allowing water flow only from the water source into the water tank 3). Connect the outlet pipe 7 to the spray pipe 9, and the second one-way valve 8 is forward-biased (allowing water flow only from the water tank 3 into the spray pipe 9). According to the concrete mix requirements, the rotation angle of the servo motor 1202 is set by the controller: the servo motor 1202 has a fixed speed, and the rotation angle is proportional to the number of rotations of the threaded rod 1204, thus determining the sliding distance of the moving plate 1207. Start the servo motor 1202, and its output end drives the first synchronous pulley 1203 to rotate, which is transmitted to the second synchronous pulley 1205 via a synchronous belt, thereby driving the threaded rod 1204 to rotate. The moving plate 1207 engages with the threaded rod 1204 through the threaded seat and slides to the left along the moving guide rail 1206. The piston rod 1208 pulls the sealing piston 1209 to retract to the left in sync. The leftward movement of the sealing piston 1209 creates a negative pressure inside the water tank 3. When the pressure is applied, the first one-way valve 6 is opened by negative pressure, and external water flows into the water tank 3 through the inlet pipe 5 until the sealing piston 1209 retracts to the preset position (preset water volume). The servo motor 1202 stops, and the first one-way valve 6 automatically closes due to water pressure balance, completing the water intake. After the concrete mixing tank is moved below the spray pipe 9, the servo motor 1202 rotates in the opposite direction, driving the threaded rod 1204 to rotate. The moving plate 1207 slides to the right along the moving guide rail 1206, and the piston rod 1208 pushes the sealing piston 1209 to the right, squeezing the water in the water tank 3. The water pressure in the water tank 3 increases, and the second one-way valve 8 is opened. Water flows into the spray pipe 9 through the outlet pipe 7 and is evenly sprayed into the concrete in the mixing tank through several spray heads 10 at the bottom. When the sealing piston 1209 moves to the right limit position of the water tank 3, the metered water in the water tank 3 is completely discharged, the servo motor 1202 stops, and the second one-way valve 8 automatically closes due to the disappearance of water pressure, completing one metered spray.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A quantitative spraying device for commercial concrete production, characterized in that: Includes a base plate (1), on the right side of the upper surface of the base plate (1) are two sets of mounting rings (2) fixedly connected, and a water tank (3) is fixedly connected between the two sets of mounting rings (2). A water inlet pipe (5) is fixedly connected to the right rear side of the water tank (3). A first one-way valve (6) is installed inside the water inlet pipe (5). A water outlet pipe (7) is fixedly connected to the middle right side of the water tank (3). A second one-way valve (8) is installed inside the water outlet pipe (7). A guide sleeve (4) is fixedly connected to the middle front side of the water tank (3). A metering component (12) is provided on the left side of the upper surface of the base plate (1). The quantitative component (12) includes a fixed plate (1201), a movable guide rail (1206), and a threaded rod (1204). The fixed plate (1201) is fixedly connected to the right side of the upper surface of the base plate (1). The movable guide rail (1206) is fixedly connected between the fixed plate (1201) and the left mounting ring (2). The threaded rod (1204) is rotatably connected between the fixed plate (1201) and the left mounting ring (2) and is located behind the movable guide rail (1206). A movable plate (1207) is slidably connected above the movable guide rail (1206) via a sliding block. The rear side of the movable plate (1207) is threadedly connected to the threaded rod (1204) via a threaded seat. The left end of the threaded rod (1204) passes through... A second synchronous wheel (1205) is fixedly connected to the left side of the fixed plate (1201). A guide rod (1210) is fixedly connected to the upper right side of the moving plate (1207). The end of the guide rod (1210) extends into the guide sleeve (4) and is slidably connected to the guide sleeve (4). A piston rod (1208) is fixedly connected to the upper right side of the moving plate (1207) behind the guide rod (1210). A sealing piston (1209) is fixedly connected to the right end of the piston rod (1208). The sealing piston (1209) is slidably connected to the inside of the water tank (3). A sealing ring is fixedly connected to the sealing piston (1209) on the side near the inner wall of the water tank (3).

2. The quantitative spraying device for commercial concrete production according to claim 1, characterized in that: The right end of the water outlet pipe (7) is fixedly connected to a spray pipe (9), and the bottom of the spray pipe (9) is fixedly connected to several spray heads (10). The front and rear ends of the spray pipe (9) are both fixedly connected to end caps (11) through flanges.

3. The quantitative spraying device for commercial concrete production according to claim 1, characterized in that: A servo motor (1202) is fixedly connected to the upper right side of the fixed plate (1201). The output end of the servo motor (1202) passes through the left side of the fixed plate (1201) and is fixedly connected to a first synchronous pulley (1203). The first synchronous pulley (1203) is connected to the second synchronous pulley (1205) via a synchronous belt.

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