Positive-pressure air-assisted feeder capable of preventing material returning

Abstract

The utility model discloses a positive pressure air-assisted feeder capable of preventing material return, which comprises a material box and a feeding mechanism which are arranged on an embankment, a conveying pipeline is connected with a scattering mechanism in a pond, and the feeding mechanism comprises an electric appliance control box which is in signal connection with a high-pressure vortex fan, a blanking airlock and a driving motor of the scattering mechanism. A through hole in the upper surface of the conveying pipeline is communicated with a discharging port of the discharging air lock, and an air outlet of the high-pressure vortex fan is connected with a check valve device and then connected with a starting port of the conveying pipeline. The check valve device is additionally arranged on the front side of the fan, a motor forward rotation valve is opened to blow air smoothly, a motor reverse rotation valve is closed, feed cannot be sucked back into the fan, and the situation that a motor is burnt out due to the fact that a motor wire is connected reversely and reversely to suck air is avoided.

Description

Technical Field

[0001] The utility model relates to the field of aquaculture equipment, in particular to an anti-backflow positive-pressure air-sending type feeding machine. Background Art

[0002] Artificial aquaculture is to raise aquatic products by feeding and fertilizing methods in small and medium-sized water bodies, such as pond fish farming, enclosure culture, etc. During the aquaculture process, bait feeding is a task with a large daily workload. Therefore, feeding machines are gradually used to replace manual feeding. The applicant developed an intelligent positive-pressure air-sending type variable-frequency speed-regulating feeding machine in 2017 and applied for a utility model patent (publication number CN206713809U). The feed in the hopper on the embankment is blown through a pipeline by a vortex blower to a spreading mechanism installed on a floating body in the pond, and the feed is put by the spreading mechanism, so that the aquatic products can be fed regularly and quantitatively, saving manpower and material resources. The motor of the vortex blower of this device rotates forward to blow out strong wind, and blows the feed received from the feeding rotary air lock in the front conveying pipeline to the spreading mechanism in the distance. However, during production and use, the situation where the motor circuit of the vortex blower is connected reversely has occurred. The motor rotates reversely, and the air supply becomes air suction. At the moment of starting the machine, the feed in the pipeline is sucked into the vortex blower. There is simply no time to react. Even if the power is cut off immediately, it is useless. The feed jams the blower and burns out the motor, causing irreparable losses. Content of the Utility Model

[0003] Aiming at the problems existing in the prior art, the utility model provides an anti-backflow positive-pressure air-sending type feeding machine, which is provided with a check valve device in front of the blower. When the motor rotates forward, the valve opens and the air blowing is unobstructed. When the motor rotates reversely, the valve closes tightly, and the feed cannot be sucked back into the blower, thus solving this problem.

[0004] To achieve the above object, the utility model provides the following technical solutions:

[0005] A positive pressure air-conveying feeding machine for preventing backflow of feed comprises a feed box and a feed feeding mechanism arranged on a bank, the feed feeding mechanism is connected to a scattering mechanism installed on a floating body in a pond through a conveying pipeline, the feed feeding mechanism comprises an electrical control box, a high pressure vortex fan, and a feed discharge air shut-off fan connected below a feed box discharge port, the electrical control box signals are connected to the high pressure vortex fan, the feed discharge air shut-off fan and a driving motor of the scattering mechanism, the air outlet of the high pressure vortex fan is connected to a starting port of a conveying pipeline, the conveying pipeline is connected to the feed outlet of the feed discharge air shut-off fan through a through hole provided on its upper surface, The air outlet of the high-pressure vortex fan is first connected to the check valve device and then connected to the starting port of the conveying pipeline. The valve body of the check valve device includes two left and right vents, which are used to connect the air outlet of the high-pressure vortex fan and the starting port of the conveying pipeline respectively. A plug is set on the inner side of the vent near one end of the high-pressure vortex fan in the inner cavity of the valve body. The top of the valve is movably connected to the inner cavity wall of the valve body above the plug. The valve uses the connection as the rotation center, and the protruding plug on the valve is docked in the plug. The valve hangs down when there is no wind, and the valve is quickly lifted when the high-pressure vortex fan rotates forward to discharge air. The valve is more instantly closed when the high-pressure vortex fan reverses to suck air, so as not to give the feed a chance to flow back into the fan.

[0006] A further improvement is that a shaft is arranged on the inner wall of the valve body above the plugging port, and the top of the valve is movably sleeved on the shaft. The valve rotates around the shaft, the rotation is flexible, the structure is stable, and the valve does not deviate.

[0007] A further improvement is that the valve is made of iron block or steel plate, and a rubber layer is provided on the peripheral wall of the plug, so that the flexibility and sealing performance are better.

[0008] A further improvement is that the vent of the check valve device is an internal thread structure, which is convenient for connecting with the air outlet of the high-pressure vortex blowers on both sides and the starting port of the delivery pipeline.

[0009] A further improvement is that one side of the unloading air shut-off fan is transmission-connected with a speed reducer.

[0010] A further improvement is that a central processing unit is provided inside the electrical control box, the input end of the central processing unit is electrically connected to the output end of the information processor, the input end of the information processor is electrically connected to the output end of the timer, the output end of the central processing unit is electrically connected to the input ends of the high-pressure vortex blower, the unloading blower, the reducer and the driving motor of the throwing mechanism respectively, the input end of the central processing unit is electrically connected to the output end of the power module, the central processing unit is bidirectionally electrically connected to the storage module and the wireless signal transceiver, and the output end of the wireless signal transceiver is electrically connected to the input end of the remote monitoring terminal. Beneficial Effects

[0011] In front of the air outlet of the high-pressure vortex blower and behind the through-hole of the feed conveying pipeline of this application, a self-made check valve device is installed. When there is no wind, the valve of the check valve device hangs down. When the high-pressure vortex blower blows air, the valve quickly lifts up, and the air outlet is unobstructed. If the motor wire of the high-pressure vortex blower is connected reversely and reverse air suction occurs, the valve closes instantly, without giving the feed a chance to backflow into the blower, effectively preventing the feed from jamming the blower and causing the motor to burn out, and ensuring the safe operation of the equipment. Description of the Drawings

[0012] Figure 1 It is a schematic structural diagram of the utility model;

[0013] Figure 2 It is an internal cross-sectional view when the valve of the check valve device is open;

[0014] Figure 3 It is an internal cross-sectional view when the valve of the check valve device is closed;

[0015] Figure 4 It is a signal connection relationship diagram of the electrical control box. Detailed Implementation Manner

[0016] As Figures 1 to 3 shown, the utility model includes a feed bin 1 and a feeding mechanism arranged on the embankment. The feeding mechanism is connected to a spreading mechanism 8 installed on a floating body in the pond through a conveying pipeline 7. The feeding mechanism includes an electrical control box 2, a high-pressure vortex blower 3, a check valve device 4, and a feeding air lock 5 connected to the outlet of the feed bin. The air outlet of the high-pressure vortex blower 3 is first connected to the check valve device 4 and then connected to the starting port of the conveying pipeline 7. The conveying pipeline 7 is communicated with the outlet of the feeding air lock 5 through a through-hole opened on its upper surface. The valve body 41 of the check valve device 4 includes two ventilation openings 42 on the left and right. The ventilation openings 42 are internal thread structures for connecting the air outlet of the high-pressure vortex blower 3 and the starting port of the conveying pipeline 7 respectively. A plug 43 is arranged on the inner side of the ventilation opening near the high-pressure vortex blower at one end of the valve body cavity. A shaft 46 is arranged on the inner wall of the valve body cavity above the plug. The top of the valve 44 is movably sleeved on the shaft 46. The valve 44 rotates around the shaft 46, and the protruding block 45 on the valve docks in the plug 43. The valve 44 is made of an iron block or a steel plate, and a rubber layer 47 is arranged on the peripheral wall of the block 45.

[0017] One side of the feeding air lock 5 is drivingly connected to a speed reducer 6.

[0018] As Figure 4As shown in the figure, a central processor 24 is provided inside the electrical control box 2. The input end of the central processor 24 is electrically connected to the output end of an information processor 25. The input end of the information processor 25 is electrically connected to the output end of a timer 26. The output end of the central processor 24 is respectively electrically connected to the input ends of the driving motors of a high-pressure vortex blower 3, a blanking rotary air lock 5, a speed reducer 6, and a spreading mechanism 8. The input end of the central processor 24 is electrically connected to the output end of a power supply module 27. The central processor 24 is in a two-way electrical connection with both a storage module 28 and a wireless signal transceiver 29. The output end of the wireless signal transceiver 29 is electrically connected to the input end of a remote monitoring terminal 9.

[0019] The rest of the specific structure is as that of the already disclosed patent (publication number CN206713809U) and becomes the prior art, such as the spreading mechanism 8.

[0020] In this application, a self-made check valve device is installed in front of the air outlet of the high-pressure vortex blower and behind the through hole of the conveying pipeline for receiving feed. When there is no wind, the valve of the check valve device hangs down at the plugging position. When the high-pressure vortex blower rotates forward to blow air, the valve quickly lifts up and the air outlet is unobstructed. If the motor wire of the high-pressure vortex blower is connected reversely and reverse suction occurs, the valve closes instantly, preventing the feed from flowing back into the blower and ensuring the operation safety of the feeding machine.

[0021] People can preset a feeding time period in advance and then use the timer 26 for control. The electrical equipment is powered by the power supply module 27. Whenever a certain period of time has passed, the timer 26 transmits information to the central processor 24 through the information processor 25. Then the central processor 24 controls the intelligent speed-regulating DC motors of the high-pressure vortex blower 3, the blanking rotary air lock 5, the speed reducer 6, and the spreading mechanism 8 to start working for feeding the aquatic products. At the same time, the central processor 24 will transmit the information to the remote monitoring terminal 9. People can use a mobile phone or a computer as the medium for receiving information and pay attention to the breeding situation of the aquatic products in real time, which can save a lot of time.

[0022] The above is only the preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions falling within the idea of the present invention belong to the protection scope of the present invention. It should be noted that for those of ordinary skill in the art in this technical field, several improvements and refinements made without departing from the principle of the present invention should also be regarded as within the protection scope of the present invention.

Claims

1. A positive pressure air delivery type feeding machine with anti-backflow, comprising a feed bin (1) arranged on the bank and a feeding mechanism. The feeding mechanism is connected to a throwing mechanism (8) installed on a floating body in the pond through a conveying pipeline (7). The feeding mechanism includes an electrical control box (2), a high-pressure vortex blower (3), and a blanking rotary air lock (5) connected under the discharge port of the feed bin. The electrical control box (2) is signal-connected to the high-pressure vortex blower (3), the blanking rotary air lock (5), and the drive motor of the throwing mechanism (8). The air outlet of the high-pressure vortex blower (3) is connected to the starting port of the conveying pipeline (7), and the conveying pipeline (7) is communicated with the discharge port of the blanking rotary air lock (5) through a through hole opened on its upper surface. It is characterized in that: The air outlet of the high-pressure vortex blower (3) is first connected to the check valve device (4) and then to the starting end of the conveying pipeline (7). The valve body (41) of the check valve device (4) includes two left and right ventilation openings (42) for connecting the air outlet of the high-pressure vortex blower (3) and the starting end of the conveying pipeline (7) respectively. A plug (43) is provided inside the ventilation opening near the high-pressure vortex blower end in the valve body cavity. The top of the valve (44) is movably connected to the inner wall of the valve body cavity above the plug. The valve (44) rotates around the connection point, and the protruding blockage (45) on the valve docks in the plug (43).

2. The positive pressure pneumatic feeding machine for preventing material backflow according to claim 1, wherein: A shaft (46) is provided on the inner wall of the valve body cavity above the plug, and the top of the valve (44) is movably sleeved on the shaft (46).

3. The positive pressure pneumatic feeding machine for preventing material backflow according to claim 1, wherein: The valve (44) is made of an iron block or a steel plate, and a rubber skin layer (47) is provided on the peripheral wall of the blockage (45).

4. The positive pressure pneumatic feeding machine for preventing material backflow according to claim 1, characterized in that: The ventilation opening (42) of the check valve device is of an internal thread structure.

5. The positive pressure pneumatic feeding machine for preventing backflow according to claim 1, characterized in that: One side of the blanking air lock (5) is drivingly connected to a speed reducer (6).

6. The positive pressure pneumatic feeding machine for preventing material backflow according to claim 1, characterized in that: A central processing unit (24) is provided inside the electrical control box (2). The input end of the central processing unit (24) is electrically connected to the output end of an information processor (25). The input end of the information processor (25) is electrically connected to the output end of a timer (26). The output end of the central processing unit (24) is respectively electrically connected to the input ends of the driving motors of the high-pressure vortex blower (3), the blanking air lock (5), the speed reducer (6) and the spreading mechanism (8). The input end of the central processing unit (24) is electrically connected to the output end of a power supply module (27). There are two-way electrical connections between the central processing unit (24) and both a storage module (28) and a wireless signal transceiver (29). The output end of the wireless signal transceiver (29) is electrically connected to the input end of a remote monitoring terminal (9).

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