Manual and automatic integrated concrete hopper

Abstract

The invention relates to the technical field of concrete hoppers, and discloses a manual-automatic integrated concrete hopper which comprises a rack and a hopper body connected to the rack, the bottom of the hopper body is rotationally connected with two gate bodies arranged oppositely, the gate bodies are provided with gate teeth, the rack is slidably connected with a push-pull piece, and the push-pull piece is provided with a push-pull rod. Meshing teeth which are respectively meshed with the gate teeth of the two gate bodies are arranged on the push-pull piece; the rack is connected with an electric driving mechanism for driving the push-pull piece to slide, the electric driving mechanism is connected with a manual rotating mechanism, the rack is connected with a battery unit and a control unit, and the electric driving mechanism is electrically connected with the battery unit and is in signal connection with the control unit. The problems that in the prior art, a hopper structure is low in safety and poor in stability in the using process, and pouring cannot be smoothly completed when a system is abnormal are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of concrete hoppers, and in particular to a manual and automatic concrete hopper. Background Art

[0002] Currently, T-beams are cast in layers using a hopper, and the thickness of each layer is strictly controlled. Common hoppers manually control the material discharge speed during casting, which has poor control accuracy and makes it difficult to control the thickness of each layer. Casting too thick may cause internal defects such as honeycombs, rough surfaces, and holes, while casting too thin will cause the casting layer to fail to meet the design strength requirements and cause concrete segregation during vibration, affecting the structural stability of the entire precast T-beam. In order to accurately control the material discharge speed of the hopper and improve the casting quality, some hoppers are equipped with electro-hydraulic gates. The gate opening is controlled by an electro-hydraulic push rod, thereby accurately and stably controlling the concrete discharge and effectively ensuring the casting quality of the precast T-beam.

[0003] The existing electro-hydraulic gate mainly includes a base, an output motor, a driving screw and a push rod. The base is connected to the existing frame. A transmission gear is provided between the output motor and the driving screw. The push rod is rotatably connected to the base, and the push rod and the driving screw are engaged with each other through helical teeth. When the output shaft of the output motor rotates, the driving screw is driven to rotate through the transmission gear. When the driving screw rotates, the push rod is driven to rotate relative to the base, so that the push rod is extended or retracted into the base. Finally, the push rod is used to pull the gate of the hopper to rotate, thereby adjusting the opening of the gate to control the unloading speed of the hopper. The rotation angle of the output motor can be controlled by a remote control signal. During the casting process of the prefabricated T-beam, the operator does not need to manually adjust the opening and closing and rotation direction of the output motor, and the operation is more convenient and efficient.

[0004] Although the electro-hydraulic gate system used in existing technologies can automatically and precisely control the hopper's discharge speed, and the operator can remotely control the output motor, the actual forming process currently requires a pre-embedded distribution box at one end of the beam-forming pedestal. This power is then connected to the electro-hydraulic gate motor via wires to the power source. Since leakage current protection switches must be installed at both the starting end (at the distribution box) and the end (at the electro-hydraulic gate) of the wires, and the prefabricated T-beams can be tens of meters long, the hopper's longitudinal movement along the T-beam during pouring will cause the wires to move, which can be easily damaged and pose a safety risk of leakage. Furthermore, if the remote control signal is interfered with or the electro-hydraulic system malfunctions, the operator cannot continue to control the gate opening using a controller. At this time, a large amount of concrete may remain in the hopper, and pouring must continue to maintain the same layer thickness. However, the existing electro-hydraulic gate system clearly cannot continue pouring during a malfunction, affecting pouring quality.

[0005] In addition, since the gate body needs to be driven to rotate relative to the hopper when adjusting the size of the hopper bottom opening, in order to enable the push rod to stably and effectively push and pull the gate body to rotate at different angles, the output end of the push rod needs to be hinged to one of the gate bodies, and then the side wall of the push rod needs to be hinged to the frame or the hopper body. The installation structure is complicated and the push rod will rotate relative to the hopper during use, posing a safety hazard to the space around the hopper. Moreover, the existing push rod can only be rotatably connected to one of the gate bodies. When driving the gate body to rotate, one gate body is subjected to the push and pull force of the push rod, and the other gate body rotates relative to the other gate body under the transmission of the gate teeth. The force forms and force directions of the two gate bodies are different, resulting in poor gate structure stability and affecting the casting quality. Therefore, it is necessary to improve the existing hopper structure to ensure the stability and safety of the hopper during use. Summary of the Invention

[0006] The present invention aims to provide a manual and automatic integrated concrete hopper to solve the problems in the prior art of low safety and poor stability of the hopper structure during use and inability to successfully complete pouring when the system is abnormal.

[0007] To solve the above problems, the present invention adopts the following technical solution: a manual and automatic concrete hopper, comprising a frame and a hopper body connected to the frame, the bottom of the hopper body is rotatably connected to two gate bodies arranged opposite each other, the gate bodies are provided with gate teeth, and a push-pull member is slidably connected to the frame, and the push-pull member is provided with engaging teeth respectively engaged with the gate teeth of the two gate bodies; an electric drive mechanism for driving the push-pull member to slide is connected to the frame, a manual rotation mechanism is connected to the electric drive mechanism, and a battery unit and a control unit are connected to the frame, the electric drive mechanism is electrically connected to the battery unit and is signal-connected to the control unit.

[0008] The principles and beneficial effects of this application are: In the present application, two gate bodies are rotatably connected to the bottom of the hopper body in pairs. When the two gate bodies rotate relative to the bottom opening of the hopper, the size of the bottom opening of the hopper body can be changed, thereby adjusting the material discharge speed of the hopper. In addition, in the present application, a push-pull member is slidably connected to the frame, and the push-pull member is provided with meshing teeth that respectively mesh with the gate teeth of the two gate bodies. When the push-pull member is driven by an electric drive mechanism to slide relative to each other, the push-pull member can simultaneously drive the two gate bodies to rotate, thereby adjusting the material discharge speed of the hopper. Since the push-pull member is located between the two gate bodies, when the push-pull member slides, it can synchronously push the two gate bodies to rotate in opposite directions. Compared with the method of setting an electric push rod on one side of the hopper in the prior art, the present application will not swing the electric push rod relative to the hopper during use, thus avoiding the safety hazard caused by the electric push rod to the space around the hopper. The space occupied is smaller, making the casting process more convenient. In addition, in this application, when the push-pull member slides and drives the two gate bodies to rotate, the two gate bodies are symmetrically subjected to force in the horizontal direction. Therefore, when the gate body rotates, the entire hopper is subjected to uniform force, the entire gate structure is stable, and the unloading speed adjustment and unloading process can be completed more stably.

[0009] In addition, in the present application, an electric drive mechanism for driving the push-pull member to slide is connected to the frame. The electric drive mechanism can automatically control the sliding of the push-pull member, and the control is stable and very precise. At the same time, a manual rotation mechanism is connected to the electric drive mechanism. When the output motor cannot be controlled due to an abnormality or failure, the manual rotation mechanism can be used to drive the electric drive mechanism to passively rotate, so that the push-pull member can still be manually rotated. In abnormal circumstances, the unloading speed of the hopper can still be controlled to ensure that the hopper casting operation can continue to be completed. No matter what the circumstances, the concrete in the hopper can be poured smoothly to ensure the casting quality of the prefabricated T-beam.

[0010] In this application, a battery unit and a control unit are also connected to the frame, integrating the control and power supply on the frame. During pouring, the battery unit and the control unit move with the hopper body and the frame. There is no need to set up a power supply box at the end of the T-beam mold base and set up wires and other structures on the mold. This not only effectively reduces equipment costs, but also reduces safety accidents such as leakage, thereby improving safety during the pouring process.

[0011] Preferably, as an improvement, the electric drive mechanism includes a base, an output motor, a gear set, a driving screw and a push rod, the base is fixedly connected to the frame, the output motor is fixedly connected to the base, the gear set is connected between the output motor and the driving screw, the push rod is slidingly connected to the base and rotationally connected to the driving screw; the push-pull member includes a rack, and a connecting rod is rotatably connected between the push rod and the rack.

[0012] In this solution, the output shaft of the output motor, through a gear train and a drive screw, can drive the push rod to extend or retract from the base. When the push rod is extended or retracted, the connecting rod can be used to drive the push-pull member to slide vertically relative to the hopper body, resulting in a simple structure and easy control. Furthermore, the push-pull member in this solution includes a rack, with a connecting rod rotatably connected between the push rod and the rack. The rack has a simple structure, is easy to install, and can simultaneously form a meshing transmission relationship with both gate bodies. The connecting rod is connected between the push rod and the rack. When the push rod is extended or retracted, the push-pull rack slides through the connecting rod. The transmission structure is simple and stable, and can stably control the hopper discharge speed.

[0013] Preferably, as an improvement, the manual rotation mechanism includes an extension shaft and an operating handle, and the extension shaft is fixedly connected between the output shaft of the output motor and the operating handle.

[0014] In this solution, a manual rotation mechanism is connected to the output shaft of the output motor. When the remote control signal is interfered with or the electro-hydraulic system fails and the output motor cannot continue to work, it is only necessary to manually drive the output shaft of the output motor to rotate through the manual rotation mechanism. Then, the output shaft of the output motor can still drive the push rod to slide relative to the base through the gear set and the drive screw. In abnormal circumstances, the feeding speed of the hopper can be manually adjusted to ensure the casting quality of the prefabricated T-beam.

[0015] Preferably, as an improvement, a fixing mechanism is fixedly connected to the extension shaft, a movable mechanism movably connected to the fixing mechanism is connected to the operating handle, and a control mechanism for controlling the connection between the movable mechanism and the fixing mechanism is connected to the output motor.

[0016] In this solution, a fixed mechanism is fixedly connected to the extension shaft, a movable mechanism movably connected to the fixed mechanism is connected to the operating handle, and a control mechanism is connected to the output motor. The control mechanism is used to control the connection between the movable mechanism and the fixed mechanism when the output motor stops working due to a fault or other reasons. Therefore, in a normal state, the output motor can rotate normally and drive the push rod to rotate, so that the push rod pushes and pulls the connecting rod to drive the rack to slide vertically, so that the gate body rotates and the material discharge speed is accurately controlled; when the output motor cannot be controlled due to an abnormality or fault, the control mechanism controls the connection between the movable mechanism and the fixed mechanism. At this time, the movable mechanism and the fixed mechanism can rotate synchronously, so the operating handle can be used to drive the movable mechanism and the fixed mechanism to rotate. When the fixed mechanism rotates, the output shaft of the output motor is driven to rotate, so that the output motor can continue to drive the push rod to extend and retract relative to the base to control the material discharge speed of the hopper, ensuring that the hopper pouring operation can continue to be completed.

[0017] In addition, in this solution, a control mechanism is provided, which is used to control the connection between the movable mechanism and the fixed mechanism when the output motor fails due to a remote control signal failure or an electro-hydraulic system failure. In normal status, the movable mechanism and the fixed mechanism are in a disconnected state. Therefore, when the output motor can work normally, the output shaft of the output motor can only drive the fixed mechanism to rotate through the extended shaft, and cannot drive the movable mechanism and the operating handle to rotate, effectively reducing the invalid power output when the output motor is working normally, saving costs and improving the stability of the output motor control; more importantly, when the output motor is working normally, the movable mechanism and the operating handle cannot rotate relative to the base, preventing the operating handle from always rotating with the fixed mechanism, effectively avoiding the idling of the operating handle, and at the same time preventing the operating handle from rotating and injuring the operator, and when the operating handle needs to be used to reversely drive the output motor to rotate, the output motor is in a stopped working state. At this time, even if the operating handle is connected to the fixed mechanism and the output motor through the movable mechanism, the operating handle will not rotate, making it convenient for the operator to hold the operating handle safely and avoiding injuring the operator.

[0018] Preferably, as an improvement, the fixing mechanism includes a fixed turntable, the movable mechanism includes a movable turntable, and mutually plug-in holes and plug rods are provided between the fixed turntable and the movable turntable; a sleeve is fixedly connected to the output motor, the fixed turntable and the movable turntable are both located in the sleeve, a slide is slidably connected in the sleeve, and the movable turntable is rotatably connected to the slide; a limiting ring is fixedly connected to the sleeve, and the slide is located between the limiting ring and the fixed turntable.

[0019] In this solution, a plug-in rod and a socket that plug into each other are set between the fixed turntable and the movable turntable. When the movable turntable approaches the fixed turntable, the plug-in rod and the socket are plugged into each other, so that the movable turntable and the fixed turntable are connected to each other and can transmit power. At other times, the movable turntable and the fixed turntable are in a state of being away from each other, the plug-in rod exits the slot, and when the output motor drives the fixed turntable to rotate, it will not drive the movable turntable and the manual rotation mechanism to rotate. The structure is simple, the connection is convenient and the transmission is stable.

[0020] At the same time, the sleeve structure provided in the present solution can accommodate and protect the movable turntable and the fixed turntable, so that the movable turntable can be connected to or disconnected from the fixed turntable more safely and stably, and the slide seat is slidably connected in the sleeve, and the movable turntable is rotatably connected to the slide seat, so that the movable turntable can slide smoothly relative to the sleeve, so that the insertion rod can be smoothly inserted into the socket, and it is convenient to use the operating handle to drive the movable turntable to rotate and reversely drive the output shaft of the output motor to rotate, so that manual adjustment of the gate opening can be completed more labor-saving and conveniently. In addition, in the present solution, a limiting sleeve is fixedly connected to the sleeve, and a limiting sleeve ring is used to provide a limit for the sliding of the slide seat to prevent the slide seat from sliding out of the sleeve at will and causing failure of the control structure.

[0021] Preferably, as an improvement, the control mechanism includes an elastic support member and an electromagnet and a permanent magnet that repel each other, the electromagnet is connected to the fixed turntable and is connected to the control unit signal, the permanent magnet is fixedly connected to the movable turntable, and the elastic support member is connected between the slide and the limiting ring. When the electromagnet does not generate a repulsive force on the permanent magnet, the slide approaches the fixed turntable under the action of the elastic support member, and the movable turntable and the fixed turntable are connected to each other.

[0022] In this solution, elastic support parts and mutually repelling electromagnets and permanent magnets are used as control mechanisms. When the output motor fails due to remote control signal failure or electro-hydraulic system failure, the control unit controls the electromagnet to cut off power, and there is no interaction force between the electromagnet and the same magnet. At this time, the movable turntable automatically approaches and connects with the fixed turntable under the elastic force of the elastic support parts, and the operator can control the opening of the hopper by turning the operating handle; when the output motor is powered on and is in working state, the electromagnet is also powered on synchronously with the output motor. At this time, the electromagnet is energized and repel each other with the permanent magnet, causing the movable turntable to move away from the fixed turntable and separate from each other, and the elastic support parts are squeezed and force is stored, and the output motor can only drive the fixed turntable to rotate, avoiding the movable turntable and the manual rotation mechanism from rotating together during the use of the output motor.

[0023] Preferably, as an improvement, the control unit includes an electrical control box and a controller connected to the electrical control box; the battery unit includes a battery box and a battery connected to the battery box, the battery box and the electrical control box are respectively located on both sides facing the hopper body, and the electric drive mechanism is located between the battery box and the electrical control box.

[0024] In this solution, the controller is connected to the electric control box and the battery is installed in the battery box, which effectively ensures the safety of the controller and the battery and improves safety during use. In addition, the battery box and the electric control box are respectively arranged on the two sides facing the hopper body, and the electric drive mechanism is located between the battery box and the electric control box. On the one hand, it is convenient to connect the electric drive mechanism to the controller and the battery respectively, reducing the wiring length, which is beneficial to the stability of power supply and control. On the other hand, the battery is set away from the controller, which facilitates the heat dissipation of the controller and the battery during use. When extreme situations occur (such as battery fire, etc.), it can effectively reduce the mutual influence between the control unit and the battery unit, and reduce the losses caused by abnormal situations.

[0025] Preferably, as an improvement, a heat dissipation window is provided on the side of the battery box, a ventilation and heat dissipation unit is connected to the heat dissipation window, the ventilation and heat dissipation unit includes a hinged rod and a plurality of rotating heat dissipation plates arranged parallel to each other, all the rotating heat dissipation plates are rotatably connected to the box body and are rotatably connected to the hinged rod, a heat dissipation gap is formed between adjacent rotating heat dissipation plates, a water expansion unit is connected to the bottom wall of the box body, and a top rod is rotatably connected between the water expansion unit and the hinged rod.

[0026] In this solution, the battery is installed in the battery box, a heat dissipation window is opened on the side of the battery box, and a ventilation and heat dissipation unit is connected to the heat dissipation window. Under normal conditions, adjacent rotating heat dissipation plates among the multiple parallel rotating heat dissipation plates in the ventilation and heat dissipation unit rotate to a state where there is a gap, so that a heat dissipation gap is formed between the adjacent rotating heat dissipation plates. The heat generated by the batteries inside the box is dissipated through the heat dissipation gap, effectively ensuring the heat dissipation performance of the box.

[0027] Since the hopper is set up in the open air, when water enters the box during use (for example, when it rains), the water entering the box first gathers on the bottom wall of the box, and the water-expanding unit connected to the bottom wall of the box expands when it comes into contact with water. The water-expanding unit exerts an extrusion effect on the push rod, and the push rod pushes the hinged rod to move. Since all the rotating heat sinks are rotatably connected to the box and the hinged rod at the same time, a parallel four-link structure is formed between adjacent rotating heat sinks, the hinged rod and the heat dissipation window of the box. Therefore, when the push rod pushes the hinged rod to move, the hinged rod will push all the rotating heat sinks to rotate relative to each other. When the adjacent rotating heat sinks rotate to a state of mutual fit, the push rod can no longer push the rotating heat sink to rotate. At this time, all the rotating heat sinks will seal the heat dissipation windows, automatically playing a waterproof role, and avoiding the risk of water entering the box and causing battery damage or leakage. Therefore, the technical solution in the present application is adopted. Under normal use conditions, there is a heat dissipation gap between adjacent rotating heat dissipation plates, which can achieve a good heat dissipation effect. When a small amount of water enters the box, the water-expanding parts will automatically expand quickly and drive the rotating heat dissipation plates to rotate to a mutually fitting and sealed state, thereby preventing further water from entering the box and damaging the battery. The entire process is completed automatically, and there is no need for manual attention to the working environment and status of the box. Compared with setting sensors, the structure is simpler and the cost is lower. It is particularly suitable for use in an environment where the hopper is used outdoors for a long time. It effectively takes into account the heat dissipation and waterproof performance of the box, and is more convenient and safer to use.

[0028] Preferably, as an improvement, the water-swellable unit includes a super absorbent resin plate and a slide plate, the super absorbent resin plate is located between the slide plate and the bottom wall of the box body; the slide plate is slidably connected to the box body, and the top rod is rotatably connected between the slide plate and the hinged rod.

[0029] In this solution, a super absorbent resin plate is intercepted between the bottom wall of the box and the slide plate. When a small amount of water accumulates on the bottom wall of the box, the super absorbent resin plate can quickly absorb water and expand. The slide plate slides relative to the box under the expansion and compression of the super absorbent resin plate, thereby pushing the top rod to move, and finally rotating the heat dissipating plate to a mutually fitting and sealed state, achieving an effective waterproof effect. In addition, the super absorbent resin plate in the water-expandable unit of this solution can quickly expand when exposed to water. For example, the HK series super absorbent resin is synthesized from polyacrylic acid, starch and polyacrylic acid, or starch and polyacrylonitrile are grafted and then compounded with polyvinyl alcohol. It has the characteristics of not being easy to corrupt, high gel strength, and good water absorption and water retention. Depending on the usage, the water absorption speed of the resin can reach 30 seconds at the fastest, which means that the resin can absorb water to saturation. Therefore, the super absorbent resin plate can quickly react and automatically seal when water enters the box, quickly playing a sealing and waterproofing protective role.

[0030] Preferably, as an improvement, the ventilation and heat dissipation unit is further provided with a mounting frame connected to the heat dissipation window, and the mounting frame is fixedly connected with rotating shafts whose number is equal to and one-to-one corresponding to the number of rotating heat dissipation plates, and the rotating heat dissipation plates rotate in coordination with the rotating shafts.

[0031] In this solution, an installation frame is set in the ventilation and heat dissipation unit, and a rotating shaft that cooperates with the rotating heat dissipation plate is fixed in the installation frame. After all the rotating heat dissipation plates are installed in the installation frame, the installation frame is installed on the heat dissipation window of the box body. The installation of the rotating heat dissipation plate is more convenient and efficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a front view of a gate for a concrete hopper in Example 1 of the present invention (with the protective cover hidden).

[0033] Figure 2 for Figure 1 A partial enlarged view of point A in the middle.

[0034] Figure 3 Schematic diagram of the electric drive mechanism in embodiment 1 of the present invention.

[0035] Figure 4 This is a partial cross-sectional view of the connection between the connecting rod and the push rod in Example 1 of the present invention.

[0036] Figure 5 This is a schematic diagram of a battery box connected to a rotating heat sink in a first embodiment of the present invention.

[0037] Figure 6 for Figure 5 Schematic diagram of the front side panel hidden by the middle battery box.

[0038] Figure 7 for Figure 6 Cross-sectional view along CC.

[0039] Figure 8 for Figure 7 A partial enlarged view of point B in the middle.

[0040] Figure 9 This is a schematic diagram of a ventilation and heat dissipation unit in Example 1 of the present invention.

[0041] Figure 10 Schematic diagram of the connection between the rotating heat sink and the sealing gasket.

[0042] Figure 11 Schematic diagram of the electric drive mechanism in the second embodiment of the present invention.

[0043] Figure 12 for Figure 11 Schematic diagram after hiding the output motor, base, and actuator.

[0044] Figure 13 for Figure 12 Cross-sectional view along BB.

[0045] Figure 14 for Figure 12 Exploded diagram.

[0046] Figure 15 This is a schematic diagram of the connection between the operating handle and the movable turntable in Example 3 of the present invention. DETAILED DESCRIPTION

[0047] The following is further described in detail through specific implementation methods: The reference numerals in the drawings of the specification include: frame 1, hopper body 2, gate body 3, gate teeth 301, guide rail 4, rack 5, meshing teeth 501, base 6, output motor 7, push rod 8, connecting rod 9, extension shaft 10, operating handle 11, protective cover 12, electric control box 13, battery box 14, installation groove 1401, leakage hole 1402, installation frame 15, hinge rod 16, hinge pin 1601, rotating heat dissipation plate 17, Protrusion 1701, hinge shaft 18, sealing gasket 19, push rod 20, super absorbent resin plate 21, slide plate 22, leakage groove 2201, limit seat 23, tightening spring 24, fixed turntable 25, jack 2501, movable turntable 26, insertion rod 27, sleeve 28, slide seat 29, sliding protrusion 2901, bearing 30, limit collar 31, electromagnet 32, permanent magnet 33, compression spring 34, rotating seat 35, and clamping seat 36.

[0048] Example 1 This embodiment is as shown in the attached Figure 1 and Figure 2The figure shows a manual and automatic concrete hopper, comprising a frame 1 and a hopper body 2 welded to the frame 1. Both the top and bottom walls of the hopper body 2 are opened. The top opening is used to transfer concrete into the hopper body 2, while the bottom opening is used to pour concrete from the hopper body 2 into the precast T-beam mold. Two paired gate bodies 3 are rotatably connected to the frame 1 via bearings 30. Rotation of the two gate bodies 3 changes the opening of the bottom of the hopper body 2, thereby controlling the speed at which the hopper body 2 pours concrete into the precast T-beam mold.

[0049] The gate body 3 is provided with gate teeth 301, and a push-pull member is vertically slidably connected to the frame 1. The push-pull member is provided with meshing teeth 501 that respectively mesh with the gate teeth 301 of the two gate bodies 3. In this embodiment, a vertically arranged guide rail 4 is fixedly connected to the frame 1 by screws. The push-pull member is a rack 5 that is vertically slidably connected to the guide rail 4. The left and right sides of the rack 5 are provided with the aforementioned meshing teeth 501. The gate teeth 301 of the two gate bodies 3 respectively mesh with the meshing teeth 501 on both sides of the rack 5. When the rack 5 slides vertically, it can drive the two gate bodies 3 to rotate and adjust the bottom opening of the hopper body 2, effectively controlling the discharge speed of the hopper body 2.

[0050] Combine Figure 1 and Figure 3 In order to precisely control the vertical sliding dimension of the rack 5 and precisely adjust the unloading speed of the hopper body 2, in this embodiment, an electric drive mechanism is connected to the frame 1 for driving the rack 5 to slide vertically relative to the frame 1. Specifically, the electric drive mechanism includes a base 6, an output motor 7, a gear set, a drive screw and a push rod 8, wherein the base 6 and Figure 1 The frame 1 is fixed by screws or other means, the gear set is rotatably connected to the base 6 through the bearing 30, the drive screw is rotatably connected to the base 6, and one of the gears in the gear set is fixedly connected to the drive screw, and a slide groove is provided on the push rod 8, and a protrusion that slides with the slide groove is fixed on the base 6. At the same time, the push rod 8 and the drive screw are threadedly matched. When the output shaft of the output motor 7 rotates, the power of the output shaft is transmitted to the push rod 8 through the gear set and the drive screw. Due to the limitation and guidance of the protrusion and the slide groove, the push rod 8 can only slide along the base 6 under the drive of the drive screw and cannot rotate. When the push rod 8 slides relative to the base 6, it can extend or retract the base 6, thereby playing a push-pull role. Since the arrangement of the gear set and the drive screw in the base 6 to drive the push rod 8 to extend or retract is a conventional technology in this field, the base 6 and the internal structure will not be described in detail here. Figure 4 A connecting rod 9 is hinged between the end of the push rod 8 and the rack 5. When the push rod 8 extends or retracts into the base 6, the rack 5 can be pushed and pulled to slide in the vertical direction through the connecting rod 9.

[0051] like Figure 3 As shown, in this embodiment, a manual rotation mechanism is connected to the output shaft of the output motor 7, and the manual rotation mechanism includes an extension shaft 10 and an operating handle 11, wherein the extension shaft 10 is fixedly connected to the output shaft of the output motor 7 by screws, and the operating handle 11 is L-shaped and fixedly connected to the extension shaft 10 by screws. In addition, combined with Figure 4 In order to improve safety during use, in this embodiment, a protective cover 12 is fixedly connected to the frame 1 by screws. The guide rail 4, the rack 5 and the side where the gate teeth 301 are provided on the gate body 3 are all located on the inner side of the protective cover 12. The left and right sides of the protective cover 12 are provided with lateral avoidance grooves that cooperate with the two gate bodies 3, and the top of the protective cover 12 is provided with a top avoidance groove that cooperates with the connecting rod 9.

[0052] like Figure 1 As shown, in this embodiment, a battery unit and a control unit are connected to the frame 1, and the electric drive mechanism is electrically connected to the battery unit and is signal-connected to the control unit. The control unit includes an electric control box 13 and a controller connected to the electric control box 13. The electric control box 13 is fixed to the frame 1 by screws; Figure 5 and Figure 6 The battery unit includes a battery box 14 and a battery installed in the battery box 14. The left side, right side and rear side of the battery box 14 are provided with heat dissipation windows for heat dissipation. At the same time, each heat dissipation window is provided with a ventilation and heat dissipation unit. The heat generated by the battery when in use can be dissipated by the ventilation and heat dissipation unit.

[0053] Combine Figure 6 and Figure 9 The ventilation and heat dissipation unit includes a mounting frame 15, a hinged rod 16 and a plurality of rotating heat dissipation plates 17 arranged parallel to each other. All rotating heat dissipation plates 17 are arranged at equal distances along the vertical direction. The hinged rod 16 is rotatably connected to one side of the rotating heat dissipation plate 17 located inside the battery box 14. Specifically, combined with Figure 7 and Figure 8 The hinge rod 16 is formed with a hinge pin 1601, and the rotatable heat sink 17 is formed with a hinge shaft 18 that engages with the hinge pin 1601. The hinge pin 1601 engages with the hinge shaft 18. When the hinge rod 16 moves up and down, the hinge pin 1601 can be used to drive the hinge shaft 18 and the rotatable heat sink 17 to rotate. The mounting frame 15 is fixed to the heat sink window by screws, and a rotating shaft is fixedly connected to the mounting frame 15 by screws. The rotating shaft is arranged horizontally, and the number of the rotating shafts is equal to and corresponds to the number of the rotatable heat sinks 17. The rotatable heat sink 17 is rotatably connected to the rotating shaft.

[0054] When all the rotating heat sinks 17 are installed, the hinge rods 16 are driven to move by external force, so that all the rotating heat sinks 17 can be driven to rotate relative to the rotating shaft at the same time. For example, when the rotating heat sinks 17 are rotated to a horizontal state ( Figure 7 As shown in the state), there is a gap between the adjacent rotating heat dissipation plates 17, so that a heat dissipation gap is formed between the adjacent rotating heat dissipation plates 17 for heat dissipation. At this time, the heat dissipation gap can be used to dissipate the heat generated by the batteries in the battery box 14; when the adjacent rotating heat dissipation plates 17 are rotated to fit together on the side, all the rotating heat dissipation plates 17 fit together to form a sealing plate ( Figure 9 The heat dissipation window is sealed to achieve waterproof effect. Figure 10 In this embodiment, both sides of the rotating heat sink 17 are integrally formed with raised portions 1701 that protrude beyond the side surfaces of the rotating heat sink 17. The raised portions 1701 are coaxially arranged with the rotating shaft, so that a rotating hole that cooperates with the rotating shaft can be easily processed on the rotating heat sink 17, and when the rotating heat sink 17 rotates, the side surfaces of the rotating heat sink 17 rotate to contact with the raised portions 1701 on the adjacent rotating heat sink 17, thereby achieving a sealing effect, and the sealing is faster and more efficient; at the same time, a sealing gasket 19 is bonded to the side of the rotating heat sink 17 that contacts the raised portion 1701. When the rotating side surface of the rotating heat sink 17 rotates to fit with the raised portion 1701, the sealing gasket 19 fits with the raised portion 1701 to achieve a better sealing and waterproof effect.

[0055] Combine Figure 7 and Figure 8 In this embodiment, a water-expandable unit is connected to the bottom wall of the battery box 14, and a push rod 20 is rotatably connected between the water-expandable unit and the hinged rod 16. Specifically, the water-expandable unit includes a super absorbent resin plate 21 and a slide plate 22. A mounting groove 1401 is formed on the bottom wall of the battery box 14. The super absorbent resin plate 21 and the slide plate 22 are installed in the mounting groove 1401 from bottom to top. The slide plate 22 is slidably connected to the side wall of the mounting groove 1401. The bottom end of the push rod 20 is rotatably connected to the slide plate 22 via a pin. The side wall of the hinged rod 16 is provided with a hinge seat, and the top end of the push rod 20 is hinged to the hinge seat. In order to enable the push rod 20 to more smoothly rotate all the rotating heat dissipation plates 17 through the hinged rod 16, in this embodiment, the number of push rods 20 and hinged rods 16 is equal and multiple. In this embodiment, two push rods 20 and two hinged rods 16 are preferably provided. In addition, in this embodiment, a vertically penetrating water leakage groove 2201 is provided on the slide plate 22, and a plurality of water leakage holes 1402 connected to the mounting groove 1401 are provided on the bottom wall of the battery box 14, so that water on the upper side of the slide plate 22 can quickly leak to the super absorbent resin plate 21 through the water leakage groove 2201, and excess water in the mounting groove 1401 can leak out of the battery box 14 through the water leakage holes 1402.

[0056] like Figure 8As shown, in this embodiment, a limit member cooperating with the slide plate 22 is connected to the battery box 14, and the limit member includes a limit seat 23 fixedly connected to the battery box 14, the limit seat 23 is located above the slide plate 22, and the bottom surface of the limit seat 23 is provided with a mounting hole, and a clamping spring 24 is connected to the mounting hole, the top end of the clamping spring 24 is against the limit seat 23, and the bottom end is against the slide plate 22. In normal use, the elastic force of the clamping spring 24 is used to make the slide plate 22 in the lower limit position, and a heat dissipation gap can be stably formed between adjacent rotating heat dissipation plates 17 to efficiently dissipate heat; when the highly absorbent resin plate 21 absorbs water and expands to squeeze the slide plate 22 upward, the limit seat 23 can limit the slide plate 22 to prevent the top rod 20 and the hinged rod 16 from being damaged by excessive force.

[0057] The specific implementation process is as follows: When it is necessary to complete the pouring of the prefabricated T-beam, the mixed concrete is transferred to the hopper body 2, and then the hopper body 2 is driven to move along the mold of the prefabricated T-beam. During the walking process, the concrete in the hopper body 2 is poured into the mold through the bottom opening of the hopper body 2. Since the pouring process needs to control the pouring thickness, it is necessary to adjust the opening size of the bottom opening of the hopper body 2 in time to regulate the unloading speed of the hopper body 2. During the adjustment, it is only necessary to use the controller to control the direction and rotation angle of the output shaft of the output motor 7 to adjust the length of the push rod 8 extending out of the base 6. When the length of the push rod 8 extending out of the base 6 changes, the push rod 8 pushes and pulls the rack 5 to slide in the vertical direction through the connecting rod 9. When the rack 5 slides, the meshing teeth 501 and the gate teeth 301 are engaged to drive the two gate bodies 3 to rotate synchronously in opposite directions, so that the gate body 3 changes the opening of the bottom opening of the hopper body 2 to be adjusted, thereby realizing accurate and stable adjustment of the unloading speed of the hopper body 2.

[0058] In addition, since an extension shaft 10 and an operating handle 11 are connected to the output shaft of the output motor 7 in this embodiment, when the output motor 7 fails to work due to interference with the remote control signal or a malfunction in the electro-hydraulic system during use, the operator can turn off the power supply of the output motor 7 and then manually rotate the operating handle 11 to manually rotate the output shaft of the output motor 7. Ultimately, the discharge speed of the hopper body 2 can also be adjusted to ensure the casting quality.

[0059] At the same time, in this embodiment, during normal use, adjacent rotating heat dissipation plates 17 rotate to form a heat dissipation gap state, which can effectively dissipate the heat generated by the battery; when the external environment is abnormal and water enters the battery box 14 (for example, water leaks from the hopper during pouring or in rainy weather), the water entering the battery box 14 first gathers on the bottom wall of the box body, and then quickly leaks down from the leakage groove 2201 to the super absorbent resin plate 21. The super absorbent resin plate 21 expands rapidly after encountering water and squeezes the slide plate 22 upward. The slide plate 22 slides upward along the installation groove 1401 under pressure, and the slide plate 22 pushes the top rod 20 to move upward. The top rod 20 drives all the rotating heat dissipation plates 17 to rotate to a mutually fitting and sealed state by pushing the hinged rod 16, quickly sealing the heat dissipation window to prevent water from continuing to enter the battery box 14 and affecting the use of the battery.

[0060] Example 2 The difference between the second embodiment and the first embodiment is that: Figure 11 、 Figure 12 and Figure 13 To further enhance safety during use, in this embodiment, a fixing mechanism is fixedly connected to the extension shaft 10, a movable mechanism is connected to the base 6 and is movably connected to the fixing mechanism, and a control mechanism is connected to the output motor 7 to control the movable mechanism to connect with the fixing mechanism when the output motor 7 stops operating. In this embodiment, the fixing mechanism includes a fixed turntable 25 fixedly connected to the end of the extension shaft 10 extending beyond the base 6 via screws. The movable mechanism includes a movable turntable 26 positioned opposite the fixed turntable 25. A plug rod 27 and a socket 2501 are interlocked and interlocked between the movable turntable 26 and the fixed turntable 25.

[0061] Specific, combined Figure 13 and Figure 14 The socket 2501 is opened on the fixed turntable 25, and the insertion rod 27 is fixedly connected to the side of the movable turntable 26 facing the fixed turntable 25 by screws. There are multiple sockets 2501 and insertion rods 27. The multiple sockets 2501 are evenly arranged circumferentially along the central axis of the fixed turntable 25. Setting the socket 2501 on the fixed turntable 25 can effectively reduce the weight of the fixed turntable 25. When the output motor 7 drives the extension shaft 10 to rotate, it drives the heavier fixed turntable 25 to rotate, which can effectively reduce energy consumption and save costs. At the same time, in order to facilitate the insertion of the insertion rod 27 into the socket 2501, a first chamfer is opened at the end of the insertion rod 27, and a second chamfer is opened at the end of the socket 2501 facing the movable turntable 26.

[0062] To facilitate the stable movement of the movable turntable 26 toward or away from the fixed turntable 25, a sleeve 28 is fixedly screwed to the housing of the output motor 7 in this embodiment. The sleeve 28 is coaxially arranged with the extension shaft 10 and has a guide groove extending along its axial direction. A slide 29 is slidably connected to the sleeve 28. The slide 29 is fixedly connected to a sliding protrusion 2901 that engages with the guide groove, allowing the slide 29 to slide stably relative to the sleeve 28. The movable turntable 26 and the slide 29 are rotatably connected via a bearing 30. In addition, a limit collar 31 is fixedly screwed to the end of the sleeve 28 in this embodiment. The limit collar 31 serves to limit the slide 29 and prevent it from sliding out of the sleeve 28. Furthermore, the operating handle 11 in this embodiment is a straight rod. The operating handle 11 is eccentrically fixed to the movable turntable 26 by screws, and one end of the operating handle 11 protrudes out of the sleeve 28 to facilitate manual rotation of the operating handle 11.

[0063] Combine Figure 13 and Figure 14 , the control mechanism in this embodiment includes an elastic support member and an electromagnet 32 and a permanent magnet 33 that repel each other. The electromagnet 32 is fixedly connected to the fixed turntable 25 on the side facing the movable turntable 26 by screws and is connected to the controller signal. The permanent magnet 33 can be a neodymium iron boron magnet. The permanent magnet 33 is fixedly connected to the movable turntable 26 on the side facing the fixed turntable 25 by screws. In order to ensure the effect of the electromagnet 32 and the permanent magnet 33, the electromagnet 32 and the permanent magnet 33 in this embodiment are located on the central axis of the output shaft of the output motor 7; the elastic support member includes a compression spring 34 connected between the slide 29 and the limiting ring 31. The slide 29 is provided with a mounting hole. One end of the compression spring 34 is against the bottom wall of the mounting hole, and the other end is against the limiting ring 31. The electromagnet 32 is connected in parallel with the output motor 7. When the output motor 7 is powered on, the electromagnet 32 is energized to generate magnetism. Under the mutual repulsive force between the electromagnet 32 and the permanent magnet 33, the movable turntable 26 slides axially along the sleeve 28 and away from the fixed turntable 25. The insertion rod 27 can be withdrawn from the slot, and when the movable turntable 26 slides away from the fixed turntable 25, it squeezes the compression spring 34. The compression spring 34 contracts and accumulates force. When the electromagnet 32 is powered off, the compression spring 34 can automatically push the movable turntable 26 to slide toward the fixed turntable 25 and finally connect with the fixed turntable 25.

[0064] The specific implementation process of this embodiment is as follows: The operating handle 11 in Example 1 is always fixedly connected to the output shaft of the output motor 7 through the extension shaft 10. Therefore, when the output motor 7 is working, it will drive the extension shaft 10 and the operating handle 11 to rotate synchronously. When the operating handle 11 rotates, it poses a safety risk to the surrounding space, especially to the surrounding operators. In this embodiment, when the output motor 7 is working normally, the electromagnet 32 is energized synchronously with the output motor 7. Under the mutual repulsive force of the electromagnet 32 and the permanent magnet 33, the movable turntable 26 slides in the direction away from the fixed turntable 25, so that the insertion rod 27 exits the slot. At this time, the movable turntable 26, the slide seat 29 and the operating handle 11 will not rotate with the output shaft of the output motor 7, thereby avoiding the risk of the operating handle 11 hitting the construction personnel; when the output motor 7 cannot be controlled due to a remote control signal failure or an electro-hydraulic system failure, in order to ensure the pouring quality of the hopper, the operator can manually adjust the feeding speed of the hopper by manually rotating the operating handle 11. During specific operation, when the electromagnet 32 is de-energized following the output motor 7 (in order to conveniently control the on and off of the output motor 7 and the electromagnet 32, an on-off switch can be set on the power supply circuit of the output motor 7, and the on-off switch can be used to simultaneously control When the output motor 7 and the electromagnet 32 are turned on and off), the repulsive force between the electromagnet 32 and the permanent magnet 33 disappears. At this time, the movable turntable 26 and the slide seat 29 slide in the direction close to the fixed turntable 25 under the action of the elastic restoring force of the compression spring 34, and the insertion rod 27 on the movable turntable 26 is automatically inserted into the insertion hole 2501, so that the movable turntable 26 and the fixed turntable 25 are connected as one. At this time, the operator manually drives the movable turntable 26 to rotate through the operating handle 11. When the movable turntable 26 rotates, the transmission force of the insertion rod 27 is used to drive the fixed turntable 25 to rotate. After the fixed turntable 25 rotates, it will rotate through the extension shaft 10, the output shaft of the output motor 7, the gear set and the driving screw, and finally the push rod 8 is manually rotated. When the output motor 7 is powered off, the manual adjustment of the hopper's unloading speed is realized to avoid abnormal conditions from affecting the casting quality of the prefabricated T-beam, while effectively ensuring the construction progress.

[0065] Example 3 The difference between the third embodiment and the second embodiment is that: Figure 15As shown, in this embodiment, the end of the operating handle 11 close to the movable turntable 26 is rotatably connected to the rotating seat 35 through a pin shaft, and the rotating seat 35 is fixedly connected to the side wall of the movable turntable 26 by screws, and the side of the movable turntable 26 connected to the operating handle 11 is fixedly connected to the clamping seat 36 that is engaged with the operating handle 11 by screws. When the operating handle 11 is not needed, the operating handle 11 can be rotated to a state of being engaged with the clamping seat 36. On the one hand, it can prevent one end of the operating handle 11 from extending outside the sleeve 28 and taking up space, avoiding interference with the use of the hopper, etc. On the other hand, it can prevent the end of the operating handle 11 from protruding outside the sleeve 28 when not in use and being damaged by collision, which can effectively protect the operating handle 11.

[0066] The above is only an embodiment of the present invention, and the common knowledge such as the specific technical solutions and / or characteristics in the solution are not described in detail here. It should be pointed out that for those skilled in the art, without departing from the technical solution of the present invention, several variations and improvements can be made, which should also be regarded as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the description can be used to interpret the content of the claims.

Claims

1. A manual and automatic concrete hopper, comprising a frame and a hopper body connected to the frame, wherein the bottom of the hopper body is rotatably connected to two gate bodies arranged opposite to each other, characterized in that: The gate body is provided with gate teeth, and a push-pull piece is slidably connected to the frame, and the push-pull piece is provided with meshing teeth respectively engaged with the gate teeth of the two gate bodies; the frame is connected to an electric drive mechanism that drives the push-pull piece to slide, and the electric drive mechanism is connected to a manual rotation mechanism, and the frame is connected to a battery unit and a control unit, and the electric drive mechanism is electrically connected to the battery unit and is signal-connected to the control unit.

2. The manual and automatic concrete hopper according to claim 1, characterized in that: The electric drive mechanism includes a base, an output motor, a gear set, a driving screw and a push rod. The base is fixedly connected to the frame, the output motor is fixedly connected to the base, the gear set is connected between the output motor and the driving screw, the push rod is slidingly connected to the base and rotatably connected to the driving screw; the push-pull member includes a rack, and a connecting rod is rotatably connected between the push rod and the rack.

3. The manual and automatic concrete hopper according to claim 2, characterized in that: The manual rotation mechanism includes an extension shaft and an operating handle, and the extension shaft is fixedly connected between the output shaft of the output motor and the operating handle.

4. The manual and automatic concrete hopper according to claim 3, characterized in that: The extension shaft is fixedly connected with a fixing mechanism, the operating handle is connected with a movable mechanism movably connected with the fixing mechanism, and the output motor is connected with a control mechanism for controlling the connection between the movable mechanism and the fixing mechanism.

5. The manual and automatic concrete hopper according to claim 4, characterized in that: The fixing mechanism includes a fixed turntable, and the movable mechanism includes a movable turntable. A socket and a plug rod that are plugged into each other are provided between the fixed turntable and the movable turntable. A sleeve is fixedly connected to the output motor, and the fixed turntable and the movable turntable are both located in the sleeve. A slide is slidably connected in the sleeve, and the movable turntable is rotatably connected to the slide. A limiting ring is fixedly connected to the sleeve, and the slide is located between the limiting ring and the fixed turntable.

6. The manual and automatic concrete hopper according to claim 5, characterized in that: The control mechanism includes an elastic support member and an electromagnet and a permanent magnet that repel each other. The electromagnet is connected to the fixed turntable and is connected to the control unit signal. The permanent magnet is fixedly connected to the movable turntable. The elastic support member is connected between the slide and the limiting ring. When the electromagnet does not generate a repulsive force on the permanent magnet, the slide approaches the fixed turntable under the action of the elastic support member, and the movable turntable and the fixed turntable are connected to each other.

7. The manual and automatic concrete hopper according to any one of claims 1 to 6, characterized in that: The control unit includes an electrical control box and a controller connected to the electrical control box; the battery unit includes a battery box and a battery connected to the battery box, the battery box and the electrical control box are respectively located on both sides facing the hopper body, and the electric drive mechanism is located between the battery box and the electrical control box.

8. The manual and automatic concrete hopper according to claim 7, characterized in that: A heat dissipation window is provided on the side of the battery box, and a ventilation and heat dissipation unit is connected to the heat dissipation window. The ventilation and heat dissipation unit includes a hinged rod and several rotating heat dissipation plates arranged parallel to each other. All the rotating heat dissipation plates are rotatably connected to the box body and are rotatably connected to the hinged rod. A heat dissipation gap is formed between adjacent rotating heat dissipation plates. A water expansion unit is connected to the bottom wall of the box body, and a top rod is rotatably connected between the water expansion unit and the hinged rod.

9. The manual and automatic concrete hopper according to claim 8, characterized in that: The water-expandable unit includes a high-absorbent resin plate and a slide plate, wherein the high-absorbent resin plate is located between the slide plate and the bottom wall of the box body; the slide plate is slidably connected to the box body, and the top rod is rotatably connected between the slide plate and the hinge rod.

10. The manual and automatic concrete hopper according to claim 9, characterized in that: The ventilation and heat dissipation unit is further provided with an installation frame connected to the heat dissipation window. The installation frame is fixedly connected with rotating shafts whose number is equal to and one-to-one corresponding to the number of rotating heat dissipation plates. The rotating heat dissipation plates rotate in conjunction with the rotating shafts.

Images