A leak-proof valve for a concrete discharge hopper
By introducing an automatic control and vibration mechanism for the anti-leakage valve in the concrete feeding hopper, the problem of concrete residue dripping was solved, the cleanliness of the construction site and the stability of the feeding system were achieved, and construction efficiency was improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 广州市兴耀混凝土有限公司
- Filing Date
- 2025-07-23
- Publication Date
- 2026-07-14
AI Technical Summary
Traditional concrete feeding hoppers lack valve design, causing concrete residue to drip down the inner wall of the hopper after feeding, resulting in environmental pollution and an unclean construction site.
A leak-proof valve comprising a leak-proof mechanism and a vibration mechanism was designed. The valve uses a sensor to detect the vehicle's position and automatically controls the opening and closing of the valve. Combined with a scraper and gate design, it ensures smooth concrete delivery and prevents residue. The vibration mechanism is connected to a drive belt via gear meshing to prevent concrete from solidifying.
It enables intelligent control of concrete feeding, prevents residual dripping, keeps the construction site clean, reduces material waste and cleaning costs, and ensures the reliability and stability of the feeding system, thereby reducing equipment failure and maintenance costs.
Smart Images
Figure CN224492980U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of construction equipment technology, and in particular to a leak-proof valve for a concrete discharge hopper. Background Technology
[0002] Concrete is an artificial stone material formed by mixing cement, sand, water, and admixtures and additives in a certain proportion, followed by stirring, molding, and curing. Due to its high compressive strength, durability, and plasticity, it is widely used in various construction projects. In the construction process, concrete needs to be accurately transported from the mixing plant to various construction sites, and the concrete discharge funnel has become an important tool in this process.
[0003] Traditional concrete discharge funnels consist of a funnel body and a supporting structure. The funnel body is generally shaped like a frustum or pyramid, wider at the top and narrower at the bottom. This shape facilitates the natural sliding of concrete under gravity, enabling rapid discharge. The supporting structure stabilizes the funnel body, ensuring its stability during concrete transport. In use, the funnel is placed in a suitable position, below the discharge port of the concrete mixing equipment and above the inlet of the concrete truck. Concrete flows from the mixing equipment, is guided through the funnel, and then into the concrete truck. However, traditional concrete discharge funnels have a significant drawback: the lack of a valve means that some concrete inevitably remains on the inner wall of the funnel after discharge and truck departure. This residual concrete slowly drips down the funnel wall onto the ground, causing environmental pollution. If the construction site is covered with dripping concrete, it not only affects the cleanliness of the site but also causes vehicles to pick up concrete on their wheels as they travel, further expanding the pollution area as vehicles move. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a leak-proof valve for concrete discharge hoppers, aiming to improve the problem that in the prior art, concrete discharge hoppers do not have valves, and after the discharge is completed and the concrete truck leaves, some residual concrete will drip down the inner wall of the hopper onto the ground, causing environmental pollution.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a leak-proof valve for a concrete discharge hopper, comprising a hopper, a fixing frame fixedly connected to the right side of the outer wall of the hopper, a leak-proof mechanism provided on the inner wall of the hopper, a vibration mechanism provided on the outer wall of the hopper, an installation component provided on the right side of the outer wall of the fixing frame, a reinforcing component provided on the top of the fixing frame, a positioning plate fixedly connected to the bottom left side of the outer wall of the hopper, and a sensor fixedly connected to the center of the bottom end of the positioning plate; the leak-proof mechanism includes a hopper-shaped guide plate, the center of the outer wall of the hopper-shaped guide plate being fixedly connected to... The funnel has a bottom inner wall with limiting plates fixedly connected to both the front and rear sides of its inner wall. Each limiting plate has a guide groove on its front and rear sides. The fixed frame has sliding grooves on its front and rear sides. The inner walls of both guide grooves and sliding grooves are slidably connected to the same gate. Multiple rollers are rotatably connected to the upper and lower sides of the inner walls of both sliding grooves and guide grooves. The gate is slidably connected to the multiple rollers. A scraper is fixedly connected to the bottom right side of the funnel's inner wall, with the bottom of the scraper abutting against the top of the gate. A drive assembly is provided on the inner wall of the fixed frame.
[0006] Through the above technical solution: when the concrete truck reaches the bottom of the funnel, the sensor in the middle of the bottom of the positioning plate detects the vehicle and triggers the anti-leakage valve. At this time, the drive assembly on the inner wall of the fixed frame starts to operate. The motor in the drive assembly starts, and its output end drives the rotating rod to rotate. The rotating rod drives the gears on the front and rear sides of the outer wall to rotate. The gears mesh with the toothed plates at the bottom of the gate, causing the gate to move in the guide groove and slide. When the gate moves, the rollers on the inner wall of the slide and guide groove slide with it, reducing friction and allowing the gate to move smoothly. The gate moves to one side, and the top separates from the bottom of the bucket-shaped guide plate, realizing the opening of the gate. The concrete in the funnel is guided into the concrete truck by the bucket-shaped guide plate. During this process, the scraper on the bottom right side of the inner wall of the funnel scrapes off the concrete attached to the top of the gate to prevent it from affecting the movement of the gate. When the concrete in the truck is almost full, the sensor detects the change, the motor reverses, and drives the gate to move in the opposite direction to close the gate, preventing the remaining concrete from flowing out. The limit plate, guide groove, and slide ensure that the gate moves along the predetermined trajectory, completing the entire concrete discharge anti-leakage process.
[0007] As a further description of the above technical solution:
[0008] The vibration mechanism includes multiple rotating seats, with one adjacent end of each rotating seat fixedly connected to the left and right sides of the outer wall of the funnel. Rotating rollers are rotatably connected between adjacent rotating seats. Cams are fixedly connected to the front and rear sides of the outer walls of two rotating rollers. Transmission wheels are fixedly connected to the rear sides of the outer walls of two rotating rollers. The outer walls of the multiple transmission wheels are provided with the same transmission belt. The two transmission wheels are connected by transmission belt. A transmission assembly is provided on the outer wall of the right rotating roller.
[0009] The above technical solution involves fixing one end of multiple rotating seats to the left and right sides of the outer wall of the funnel, providing a mounting base for the entire vibration mechanism and enabling the rotating rollers to rotate stably. As the rotating rollers rotate between the rotating seats, the cams fixed to the front and rear sides of their outer walls rotate accordingly. During rotation, the cams continuously strike the outer wall of the funnel, generating vibration to dislodge concrete adhering to the inner wall. A transmission belt is fitted onto the transmission wheel. When the right rotating roller rotates, it drives the transmission wheel on the rear side of its outer wall to rotate. Through the transmission belt, the transmission wheel of the left rotating roller rotates synchronously, thus driving the left rotating roller to rotate as well, achieving synchronous operation of the two rotating rollers. This ensures that multiple cams strike the outer wall of the funnel evenly and synchronously. When an external power source acts on the transmission assembly, the transmission assembly drives the right rotating roller to rotate, thereby starting the operation of the entire vibration mechanism. This effectively prevents concrete from solidifying inside the funnel, ensuring unobstructed flow and facilitating smooth concrete discharge.
[0010] As a further description of the above technical solution:
[0011] The drive assembly includes a rotating rod, the front and rear ends of which are rotatably connected to the left side of the inner wall of the fixed frame. Gear 1 is fixedly connected to the front and rear sides of the outer wall of the rotating rod. Tooth plates are fixedly connected to the front and rear sides of the bottom of the gate plate. Two tooth plates are respectively meshed with the corresponding gear 1. A motor is fixedly connected to the left end of the front side of the outer wall of the fixed frame. The output ends of multiple motors pass through the fixed frame and are fixedly connected to the rotating rod.
[0012] Through the above technical solution:
[0013] When the drive assembly is working, the motor fixed to the front left end of the outer wall of the fixed frame starts as the power source. The output end of the motor rotates. Since its output end is fixedly connected to the rotating rod, and the front and rear ends of the outer wall of the rotating rod are rotatably connected to the left side of the inner wall of the fixed frame, the rotating rod will rotate together with the output end of the motor. When the rotating rod rotates, the gear one fixedly connected to the front and rear sides of its outer wall rotates along with it. The toothed plates fixedly connected to the front and rear sides of the bottom of the gate plate mesh with the corresponding gear one. Based on the meshing transmission principle of gear one and toothed plate, when gear one rotates, it will drive the toothed plate to move, and then drive the gate plate fixedly connected to the toothed plate to move. In this way, the drive assembly provides power for the movement of the gate plate to realize the opening and closing action of the anti-leakage valve.
[0014] As a further description of the above technical solution:
[0015] The transmission assembly includes a second gear, which is fixedly connected to the rear side of the outer wall of the rotating roller on the right side. The rear end of the drive assembly is fixedly connected to a third gear, which meshes with the second gear.
[0016] Through the above technical solution: when the transmission component is working, the gear three fixed at the rear end of the drive component rotates with the drive component. The gear three meshes with the gear two fixed on the rear side of the outer wall of the right rotating roller. Based on the gear meshing principle, the rotation of the gear three drives the rotation of the gear two, which in turn causes the right rotating roller to rotate. The right rotating roller then drives the left rotating roller to rotate synchronously through the transmission wheel and transmission belt, thus realizing the operation of the vibration mechanism.
[0017] As a further description of the above technical solution:
[0018] The mounting assembly includes a mounting plate, and the outer wall of the mounting plate is threaded with multiple bolts on all four sides.
[0019] The above technical solution involves placing the mounting plate in the predetermined installation position during the installation process, and then tightening the multiple bolts threaded around the outer wall of the mounting plate to fix it in place, thereby securing the entire related device in the corresponding position.
[0020] As a further description of the above technical solution:
[0021] The reinforcement assembly includes two reinforcement rods. The bottom ends of the two reinforcement rods are fixedly connected to the front and rear sides of the top of the fixed frame, respectively. Mounting blocks are fixedly connected to the left and right sides of the outer walls of the two reinforcement rods. Multiple bolts are threadedly connected to adjacent sides of the two mounting blocks. The far ends of the multiple bolts are threadedly connected to the funnel and the mounting plate, respectively.
[0022] Through the above technical solution: when the reinforcement component is working, the bottom ends of the two reinforcement rods are first fixed to the front and rear sides of the top of the fixed frame to provide vertical support for the whole. The two bolts on the mounting blocks on the left and right sides of its outer wall are threaded to the funnel at one end and threaded to the mounting plate at the other end. By tightening the bolts, the funnel, the fixed frame and the mounting plate are tightly connected to each other, which enhances the overall structural stability.
[0023] As a further description of the above technical solution:
[0024] A connecting sleeve is fixedly connected to the top of the funnel, and connecting bolts are threaded around the outer wall of the connecting sleeve. A sealing gasket is fixedly connected to the top of the connecting sleeve, and the tops of the multiple connecting bolts all penetrate the sealing gasket.
[0025] The above technical solution involves aligning the pipe with the top of the funnel when it is necessary to connect the concrete conveying pipe. By tightening the connecting bolts that are threaded around the outer wall of the connecting bolts, the pipe and the connecting bolts are securely connected. The sealing gasket at the top of the connecting bolts is squeezed and deformed during the tightening process, filling the gap between the pipe and the connecting bolts and preventing leakage during concrete conveying.
[0026] As a further description of the above technical solution:
[0027] A control box is fixedly connected to the bottom front side of the outer wall of the funnel. Multiple interfaces are provided on the left and right sides of the inner wall of the control box. A protective plate is rotatably connected to the top of the inner wall of the control box.
[0028] Through the above technical solution: the control box at the bottom front of the funnel's outer wall is used for centralized control of related equipment. Multiple interfaces on the left and right sides of its inner wall can be connected to the wiring of sensors, motors, and other equipment to realize the control of the entire leak-proof valve system. When it is necessary to connect or repair the wiring, the protective plate is opened; when not in use, the protective plate is rotated to close it, preventing dust and moisture from entering the control box, protecting the internal interfaces and wiring, and ensuring the stable operation of the control system.
[0029] This utility model has the following beneficial effects:
[0030] 1. In this utility model, the valve is automatically controlled to open and close by sensing the vehicle position through a sensor, realizing intelligent material feeding. When the gate is opened, the roller reduces the friction of the gate plate movement, and the scraper removes the concrete on the top of the gate plate to ensure smooth concrete feeding. After the gate is closed, the gate plate can completely seal the bucket-shaped guide plate, effectively preventing concrete residue from dripping. This series of designs completely solves the problem of the concrete feeding hopper without valve in the existing technology, which causes residual concrete to drip onto the ground and pollute the environment after feeding, keeping the construction site clean and reducing material waste and cleaning costs.
[0031] 2. In this utility model, the anti-leakage mechanism and the vibration mechanism are cleverly linked. The motor power drives the vibration mechanism when the gate is opened and closed. The vibration mechanism is connected to the transmission belt through gear meshing, so that the double rotating rollers and cam rotate synchronously and continuously strike the outer wall of the funnel. This effectively prevents the concrete from solidifying on the inner wall of the funnel, ensures that the funnel is unobstructed, greatly reduces the problem of material blockage caused by concrete solidification, ensures the continuous and smooth progress of concrete material feeding, significantly improves the reliability and stability of the entire concrete feeding system, reduces equipment failure and maintenance costs, and improves construction efficiency. Attached Figure Description
[0032] Figure 1 This is a perspective view of a leak-proof valve for a concrete discharge hopper proposed in this utility model.
[0033] Figure 2 This is a front view of a leak-proof valve for a concrete discharge hopper proposed in this utility model.
[0034] Figure 3 This is a partial structural exploded view of a leak-proof valve for a concrete discharge hopper proposed in this utility model;
[0035] Figure 4 This is a schematic diagram of the vibration mechanism of a leak-proof valve for a concrete discharge hopper proposed in this utility model.
[0036] Figure 5 This is a cross-sectional view of a leak-proof valve for a concrete discharge hopper proposed in this utility model.
[0037] Figure 6 This is a cross-sectional view of a leak-proof valve for a concrete discharge hopper proposed in this utility model.
[0038] Legend:
[0039] 1. Funnel; 2. Leak-proof mechanism; 201. Funnel-shaped guide plate; 202. Limiting plate; 203. Guide groove; 204. Slide groove; 205. Gate; 206. Roller; 207. Scraper; 208. Drive assembly; 2081. Rotating rod; 2082. Gear 1; 2083. Tooth plate; 2084. Motor; 3. Vibration mechanism; 301. Rotating seat; 302. Rotating roller; 303. Cam; 304. Transmission wheel; 305. Transmission belt; 306. Transmission assembly; 3061. Gear II; 3062. Gear III; 4. Fixing frame; 5. Mounting assembly; 501. Mounting plate; 502. Bolt I; 6. Reinforcing assembly; 601. Reinforcing rod; 602. Mounting block; 603. Bolt II; 7. Positioning plate; 8. Sensor; 9. Connecting sleeve; 10. Connecting bolt; 11. Sealing gasket; 12. Control box; 13. Interface; 14. Protective plate. Detailed Implementation
[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0041] Reference Figure 4 , Figure 5 and Figure 6This utility model provides an embodiment of a leak-proof valve for a concrete feeding hopper, comprising a hopper 1, a fixing frame 4 fixedly connected to the right side of the outer wall of the hopper 1 for installing and supporting related components, a leak-proof mechanism 2 provided on the inner wall of the hopper 1 for preventing concrete leakage, a vibration mechanism 3 provided on the outer wall of the hopper 1 for causing concrete adhering to the inner wall of the hopper 1 to detach, an installation component 5 provided on the right side of the outer wall of the fixing frame 4 for installing and fixing the entire device in a designated position, a reinforcing component 6 provided on the top of the fixing frame 4 for enhancing the stability of the overall structure of the device, and a positioning plate 7 fixedly connected to the bottom left side of the outer wall of the hopper 1. A sensor 8 is fixedly connected to the middle of the end for sensing the position of the concrete truck; the anti-leakage mechanism 2 includes a bucket-shaped guide plate 201 for guiding the concrete discharge. The middle of the outer wall of the bucket-shaped guide plate 201 is fixedly connected to the bottom of the inner wall of the funnel 1. Limiting plates 202 are fixedly connected to the front and rear sides of the inner wall of the funnel 1 to limit the movement direction of the gate 205. Guide grooves 203 are provided on the front and rear sides of the inner walls of the two limiting plates 202 to guide the movement of the gate 205. Sliding grooves 204 are provided on the front and rear sides of the inner walls of the fixed frame 4 to assist the gate 205 in moving along a predetermined trajectory. The inner walls of the two guide grooves 203 and the two sliding grooves 204 are slidably connected to the same... The gate 205 opens and closes the valve by moving. Multiple rollers 206 are rotatably connected to the upper and lower sides of the inner walls of the two sliding grooves 204 and the two guide grooves 203 to reduce friction during gate 205 movement. The gate 205 is slidably connected to the rollers 206. A scraper 207 is fixedly connected to the bottom right side of the inner wall of the funnel 1 to scrape away concrete adhering to the top of the gate 205. The bottom of the scraper 207 is in contact with the top of the gate 205. A drive assembly 208 is provided on the inner wall of the fixed frame 4 to provide power for the movement of the gate 205. The drive assembly 208 includes a rotating rod 2081, which rotates under the drive of a motor 2084. The front and rear ends of the outer wall of 2081 are rotatably connected to the left side of the inner wall of the fixed frame 4. Gear 2082 is fixedly connected to the front and rear sides of the outer wall of the rotating rod 2081, which is used to mesh with the toothed plate 2083 to drive the gate 205 to move. Gear 2083 is fixedly connected to the front and rear sides of the bottom of the gate 205, which cooperates with the gear 2082 to realize the movement of the gate 205. The two toothed plates 2083 are respectively meshed with the corresponding gear 2082. A motor 2084 is fixedly connected to the left end of the front side of the outer wall of the fixed frame 4, which serves as a power source to drive the rotating rod 2081 to rotate. The output ends of multiple motors 2084 pass through the fixed frame 4 and are fixedly connected to the rotating rod 2081.
[0042] Specifically, the funnel 1 serves as a channel for concrete discharge. The fixed frame 4 on the right side of its outer wall provides an installation base for the drive assembly 208. The funnel-shaped guide plate 201 is fixed to the bottom of the inner wall of the funnel 1 to guide the concrete discharge. The limiting plate 202 is fixed to the front and rear sides of the inner wall of the funnel 1. Its guide groove 203 cooperates with the sliding groove 204 on the inner wall of the fixed frame 4, allowing the gate 205 to slide stably along a specific trajectory. The rollers 206 in the sliding groove 204 and guide groove 203 are slidably connected to the gate 205 to reduce the friction of the gate 205. The scraper 207 is fixed to the bottom right side of the inner wall of the funnel 1 and fits against the top of the gate 205. When the gate 205 moves, it scrapes off the top of the gate. To ensure smooth movement of the gate 205, the motor 2084 in the drive assembly 208 is fixed to the left front end of the outer wall of the fixed frame 4. After starting, its output end drives the rotating rod 2081 to rotate. The gear 2082 on the rotating rod 2081 meshes with the bottom toothed plate 2083 of the gate 205, thereby driving the gate 205 to slide in the guide groove 203 and the slide groove 204 to realize the opening and closing of the valve and control the concrete discharge. The positioning plate 7 is fixed to the bottom left side of the outer wall of the funnel 1. The sensor 8 at the middle of its bottom end is used to sense the position of the concrete vehicle and provide a signal for the motor 2084 to start, realize automated control, and effectively prevent residual dripping after concrete discharge.
[0043] Reference Figure 3 , Figure 4 and Figure 5 The vibration mechanism 3 includes multiple rotating seats 301. The adjacent ends of the multiple rotating seats 301 are respectively fixedly connected to the left and right sides of the outer wall of the funnel 1, providing support and connection points for the rotating rollers 302. Rotating rollers 302 are rotatably connected between adjacent rotating seats 301, allowing them to rotate under the support of the rotating seats 301. Cams 303 are fixedly connected to the front and rear sides of the outer walls of two rotating rollers 302, rotating with the rollers 302 and generating vibration by continuously impacting the outer wall of the funnel 1. Transmission wheels 304 are fixedly connected to the rear sides of the outer walls of two rotating rollers 302 for transmitting power. The outer walls of the multiple transmission wheels 304 are provided with the same... A transmission belt 305 surrounds multiple transmission wheels 304 to transmit power between rotating rollers 302. Two transmission wheels 304 are connected by the transmission belt 305, so that the left and right rotating rollers 302 can rotate synchronously. A transmission assembly 306 is provided on the outer wall of the right rotating roller 302. The transmission assembly 306 includes a second gear 3061, which is fixedly connected to the rear side of the outer wall of the right rotating roller 302. A third gear 3062 is fixedly connected to the rear end of the drive assembly 208. The third gear 3062 meshes with the second gear 3061 to transmit the power of the drive assembly 208 to the rotating roller 302.
[0044] Specifically, multiple rotating seats 301 are fixed at one end to the left and right sides of the outer wall of the funnel 1, providing support and rotational connection points for the rotating rollers 302, allowing the rotating rollers 302 to rotate between adjacent ones. Cams 303 fixed to the front and rear sides of the outer walls of the two rotating rollers 302 rotate along with them as the rollers 302 rotate. By continuously impacting the outer wall of the funnel 1, they generate vibrations that cause the concrete adhering to the inner wall of the funnel 1 to detach. Transmission wheels 304 are fixedly connected to the rear sides of the outer walls of both rotating rollers 302, cooperating with the same transmission belt 305 fitted around their outer walls. When the right rotating roller 302 rotates, the transmission belt 305 drives the left rotating roller 302 to rotate synchronously, ensuring that the multiple cams 303 can operate synchronously. The vibration mechanism 3 vibrates the funnel 1 evenly. Gear 2 3061 in the transmission assembly 306 is fixed to the rear side of the outer wall of the right rotating roller 302 and meshes with gear 3 3062 fixedly connected to the rear end of the drive assembly 208. When the drive assembly 208 works and the motor 2084 drives the rotating rod 2081 to rotate, gear 3 3062 rotates accordingly. Through the meshing connection with gear 2 3061, it drives the right rotating roller 302 to rotate. In this way, the vibration mechanism 3, with the power of the drive assembly 208, makes the rotating roller 302, cam 303, transmission wheel 304 and transmission belt 305 work together to realize the vibration function of the funnel 1, effectively preventing the concrete from solidifying in the funnel 1 and ensuring the smooth concrete feeding process.
[0045] Reference Figure 1 , Figure 2 and Figure 4 The mounting component 5 includes a mounting plate 501. Multiple bolts 502 are threaded around the outer wall of the mounting plate 501. The mounting plate 501 can be fixed in place in the designated position by the multiple bolts 502 threaded around its outer wall. The reinforcement component 6 includes two reinforcement rods 601, which play a key role in reinforcement connection. The bottom ends of the two reinforcement rods 601 are fixedly connected to the front and rear sides of the top of the fixing frame 4, respectively, so that the reinforcement rods 601 are tightly connected to the funnel 1, which enhances the connection strength between the funnel 1 and the fixing frame 4. Mounting blocks 602 are fixedly connected to the left and right sides of the outer wall of the two reinforcement rods 601. Multiple bolts 603 are threaded around the adjacent side of the two mounting blocks 602. The far ends of the multiple bolts 603 are threadedly connected to the funnel 1 and the mounting plate 501, respectively.
[0046] Specifically, the mounting plate 501, through multiple bolts 502 threaded around its outer wall, can fix the entire leak-proof valve structure in a designated position, such as the support frame of a concrete conveying site, ensuring that the funnel 1 can be stably positioned in the working position and preventing it from shaking and affecting operation during concrete pouring. The reinforcing component 6 further enhances the structural stability. The bottom ends of the two reinforcing rods 601 are fixed to the front and rear sides of the top of the fixing frame 4, respectively. Multiple bolts 603 threaded on the mounting blocks 602 on the left and right sides of its outer wall play a key role in reinforcing the connection. On the one hand, some bolts 603... Bolt 603 is threaded to funnel 1, making the reinforcing rod 601 tightly connected to funnel 1, enhancing the connection strength between funnel 1 and fixed frame 4, and preventing relative displacement between funnel 1 and fixed frame 4 during use. On the other hand, some bolts 603 are threaded to mounting plate 501, forming a stable whole structure of reinforcing rod 601, fixed frame 4, funnel 1 and mounting plate 501. In this way, during the concrete pouring process, the entire device can withstand the impact force of concrete and its own weight, ensuring the stable operation of the anti-leakage valve and reducing the risk of failure caused by structural instability.
[0047] Reference Figure 1 , Figure 2 and Figure 3 The top of the funnel 1 is fixedly connected to a connecting sleeve 9, which is connected to the concrete conveying pipe. The outer wall of the connecting sleeve 9 is threaded with connecting bolts 10, which can firmly fix the conveying pipe to the connecting sleeve 9 to ensure stable connection during concrete conveying. The top of the connecting sleeve 9 is fixedly connected with a sealing gasket 11, which can effectively prevent concrete from leaking from the connection during conveying. The tops of the multiple connecting bolts 10 all penetrate the sealing gasket 11. The bottom of the front side of the outer wall of the funnel 1 is fixedly connected to a control box 12. The inner wall of the control box 12 is provided with multiple interfaces 13 on the left and right sides for connecting various control lines to realize centralized control of the entire anti-leakage valve system. The top of the inner wall of the control box 12 is rotatably connected with a protective plate 14, which protects the interfaces 13.
[0048] Specifically, the connecting sleeve 9 at the top of the funnel 1 is mainly used to connect to the concrete conveying pipe. The connecting bolts 10 around the outer wall of the connecting sleeve 9 are threaded together to firmly fix the conveying pipe to the connecting sleeve 9, ensuring a stable connection during concrete conveying and preventing loosening or falling off. The sealing gasket 11 at the top of the connecting sleeve 9 effectively prevents concrete from leaking from the connection during conveying. The tops of the multiple connecting bolts 10 penetrate the sealing gasket 11, further compacting the sealing gasket 11 and enhancing the sealing effect. The control box 12 at the bottom front of the outer wall of the funnel 1 has multiple interfaces 13 on the left and right sides of its inner wall for connecting various control lines to achieve centralized control of the entire anti-leakage valve system. The protective plate 14 rotatably connected to the top of the inner wall of the control box 12 can be lowered when the interfaces 13 inside the control box 12 are not in use, preventing dust, moisture, etc. from entering the control box 12 and damaging the internal lines and interfaces 13. This protects the internal structure of the control box 12 and ensures the stable operation of the entire anti-leakage valve control system.
[0049] Working principle: When a concrete truck enters the bottom of the funnel 1, the sensor 8 at the bottom center of the positioning plate 7 senses the vehicle and immediately activates the anti-leakage valve. The motor 2084 starts, and its output drives the rotating rod 2081 to rotate. The rotating rod 2081 then drives the gear 2082, which is fixedly connected to the front and rear sides of the outer wall, to rotate clockwise. The gear 2082 meshes with the toothed plates 2083 on the front and rear sides of the bottom of the gate 205, thereby moving the gate 205 to the right along the inner wall of the guide groove 203 and the slide 204. At this time, the top of the gate 205 disengages from the bottom of the bucket-shaped guide plate 201, realizing the gate opening operation. The concrete in the funnel 1 can then smoothly enter the concrete truck through the guidance of the bucket-shaped guide plate 201. During the movement of the gate 205, multiple rollers 206, which are rotatably connected to the upper and lower sides of the inner wall of the slide 204 and the guide groove 203, slide against the upper and lower sides of the outer wall of the gate 205. This design effectively reduces friction, ensuring smooth movement of the gate 205. Simultaneously, the scraper 207, fixedly connected to the bottom right side of the funnel 1, removes the concrete adhering to the top of the gate 205 during opening, further ensuring unimpeded movement of the gate 205. Furthermore, the gate 205 is wider than the funnel-shaped guide plate 201, ensuring that the gate 205 completely seals the funnel-shaped guide plate 201 when closing, preventing concrete from falling off. When the concrete truck is nearly full, the sensor 8 detects the change in vehicle capacity and sends a signal. The motor 2084 then rotates counterclockwise, causing the rotating rod 2081 and gear 2082 to reverse. The gear plate 2083 moves the gate 205 to the left, completing the closing action and preventing the remaining concrete from flowing out. This solves the problem of concrete residue dripping onto the ground after being poured, causing environmental pollution, as is common in existing technologies.
[0050] Furthermore, when the gate 205 in the leak-proof mechanism 2 performs the opening and closing operation, the motor 2084 drives the rotating rod 2081 to rotate. At this time, the gear 3062, which is fixedly connected to the rear end of the rotating rod 2081, rotates synchronously. The gear 3062 meshes with the gear 2061 in the transmission assembly 306. The gear 2061 is fixed to the rear side of the outer wall of the right rotating roller 302, thus driving the right rotating roller 302 to start rotating. At the same time as the right rotating roller 302 rotates, the transmission wheel 304 fixedly connected to the rear side of its outer wall also rotates. Both rotating rollers 302 have transmission wheels 304 on the rear side of their outer walls, and these two transmission wheels 304 are connected by the same transmission belt 305. Based on this structure, when the right rotating roller 302 rotates, it drives the left rotating roller 302 to rotate synchronously through the transmission belt 305. Since cams 303 are fixedly connected to the front and rear sides of the outer walls of both rotating rollers 302, when the rotating rollers 302 rotate, multiple cams 303 rotate synchronously. As the cams 303 rotate, they continuously strike the outer wall of the funnel 1. This continuous striking action can effectively cause the concrete adhering to the inner wall of the funnel 1 to be vibrated and fall off, preventing the concrete from solidifying in the funnel 1, ensuring the smooth flow of the funnel 1, and ensuring that the concrete feeding work can continue smoothly, further improving the reliability and stability of the entire concrete feeding system.
[0051] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A leak-proof valve for a concrete discharge hopper, comprising a hopper (1), characterized in that: A fixing frame (4) is fixedly connected to the right side of the outer wall of the funnel (1). A leak-proof mechanism (2) is provided on the inner wall of the funnel (1). A vibration mechanism (3) is provided on the outer wall of the funnel (1). An installation component (5) is provided on the right side of the outer wall of the fixing frame (4). A reinforcing component (6) is provided on the top of the fixing frame (4). A positioning plate (7) is fixedly connected to the bottom left side of the outer wall of the funnel (1). A sensor (8) is fixedly connected to the middle of the bottom end of the positioning plate (7). The leak-proof mechanism (2) includes a funnel-shaped guide plate (201). The outer wall of the funnel-shaped guide plate (201) is fixedly connected to the bottom of the inner wall of the funnel (1). Limiting plates (202) are fixedly connected to the front and rear sides of the inner wall of the funnel (1). Guide grooves (203) are provided on the front and rear sides of the inner walls of the two limiting plates (202). Sliding grooves (204) are provided on the front and rear sides of the inner walls of the fixing frame (4). The inner walls of the two guide grooves (203) and the two sliding grooves (204) are connected to each other. The walls are slidably connected to the same gate (205). The inner walls of the two slide grooves (204) and the two guide grooves (203) are rotatably connected to multiple rollers (206). The gate (205) is slidably connected to the multiple rollers (206). The bottom right side of the inner wall of the funnel (1) is fixedly connected to a scraper (207). The bottom of the scraper (207) is in contact with the top of the gate (205). The inner wall of the fixed frame (4) is provided with a drive assembly (208).
2. A leak-proof valve for a concrete discharge hopper according to claim 1, characterized in that: The vibration mechanism (3) includes multiple rotating seats (301), with one end of each of the multiple rotating seats (301) fixedly connected to the left and right sides of the outer wall of the funnel (1). Rotating rollers (302) are rotatably connected between adjacent rotating seats (301). Cams (303) are fixedly connected to the front and rear sides of the outer walls of two rotating rollers (302). Transmission wheels (304) are fixedly connected to the rear sides of the outer walls of two rotating rollers (302). The outer walls of the multiple transmission wheels (304) are provided with the same transmission belt (305). The two transmission wheels (304) are connected by transmission through the transmission belt (305). A transmission assembly (306) is provided on the outer wall of the right rotating roller (302).
3. A leak-proof valve for a concrete discharge hopper according to claim 1, characterized in that: The drive assembly (208) includes a rotating rod (2081). The front and rear ends of the outer wall of the rotating rod (2081) are rotatably connected to the left side of the inner wall of the fixed frame (4). Gear 1 (2082) is fixedly connected to the front and rear sides of the outer wall of the rotating rod (2081). Tooth plates (2083) are fixedly connected to the front and rear sides of the bottom of the gate (205). The two tooth plates (2083) are respectively meshed with the corresponding gear 1 (2082). A motor (2084) is fixedly connected to the left end of the front side of the outer wall of the fixed frame (4). The output ends of multiple motors (2084) pass through the fixed frame (4) and are fixedly connected to the rotating rod (2081).
4. A leak-proof valve for a concrete discharge hopper according to claim 2, characterized in that: The transmission assembly (306) includes a second gear (3061), which is fixedly connected to the rear side of the outer wall of the rotating roller (302) on the right side. The rear end of the drive assembly (208) is fixedly connected to a third gear (3062), which meshes with the second gear (3061).
5. A leak-proof valve for a concrete discharge hopper according to claim 1, characterized in that: The mounting assembly (5) includes a mounting plate (501), and the outer wall of the mounting plate (501) is threaded with a plurality of bolts (502) around its perimeter.
6. A leak-proof valve for a concrete discharge hopper according to claim 5, characterized in that: The reinforcement component (6) includes two reinforcement rods (601). The bottom ends of the two reinforcement rods (601) are fixedly connected to the front and rear sides of the top of the fixed frame (4). Mounting blocks (602) are fixedly connected to the left and right sides of the outer walls of the two reinforcement rods (601). Multiple bolts (603) are threadedly connected to adjacent sides of the two mounting blocks (602). The far ends of the multiple bolts (603) are threadedly connected to the funnel (1) and the mounting plate (501) respectively.
7. A leak-proof valve for a concrete discharge hopper according to claim 1, characterized in that: The top of the funnel (1) is fixedly connected to a connecting sleeve (9), and the outer wall of the connecting sleeve (9) is threaded with connecting bolts (10). The top of the connecting sleeve (9) is fixedly connected to a sealing gasket (11), and the top ends of the multiple connecting bolts (10) all penetrate the sealing gasket (11).
8. A leak-proof valve for a concrete discharge hopper according to claim 1, characterized in that: A control box (12) is fixedly connected to the bottom of the front side of the outer wall of the funnel (1). Multiple interfaces (13) are provided on the left and right sides of the inner wall of the control box (12). A protective plate (14) is rotatably connected to the top of the inner wall of the control box (12).