Fluid-driven fertilizer suction device

Abstract

The invention relates to the technical field of agricultural irrigation equipment, and discloses a fluid-driven fertilizer sucker which comprises a first shell, a driving structure, a second shell and a conveying structure, a main fluid flows through a main fluid cavity in the first shell so as to irrigate crops, the driving structure is arranged in the driving cavity, the driving cavity is communicated with the main fluid cavity, and the second shell is arranged in the second shell. The conveying structure is in transmission connection with the driving structure, when the main fluid flows through the main fluid cavity, the main fluid drives the driving structure to move so as to drive the conveying structure to move, so that negative pressure is formed at the other end of the second shell, and under the action of the negative pressure, the fertilizer flows through the conveying cavity and the driving cavity, enters the main fluid cavity and flows out after being mixed with the main fluid; fertilization operation is realized while irrigation is performed. The liquid-driven fertilizer suction device is simple in structure, the fluid kinetic energy of the main fluid is converted into mechanical energy capable of driving the conveying structure, so that fertilizer conveying is achieved, the head loss is reduced to the maximum extent, the fertilizer and the main fluid are mixed in the main fluid cavity, and the fertilizer applying uniformity is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural irrigation equipment, in particular to a fluid-driven fertilizer absorber. Background Art

[0002] With the continuous advancement of agricultural modernization, integrated water and fertilizer technology has become an important means of increasing crop yields and optimizing water resource utilization efficiency. Among them, fertilizer absorbers (also known as feeders) are key devices for mixing fertilizer and irrigation water in a set ratio and are widely used in fields and fruit trees. Through fertilizer absorbers, liquid fertilizers or soluble solid fertilizers can be evenly mixed with water flow, achieving synchronous delivery and improving fertilization accuracy and efficiency.

[0003] Currently, common fertilization methods on the market include Venturi fertilizer applicators, proportional fertilizer applicators, fertilizer tanks, and jet fertilizer applicators. Venturi and jet fertilizer applicators have a typical fertilizer suction structure, operating primarily by changing the cross-sectional dimensions of the flow channel to create a localized high-speed flow area, using the negative pressure generated by the change in flow rate to draw in fertilizer. However, existing fertilizer suction devices of this type generally suffer from the following technical issues: Firstly, because they rely on changes in the flow channel geometry to generate negative pressure, they often result in significant head losses in the irrigation system; secondly, to meet certain suction requirements, the device structure is often complex, hindering subsequent maintenance and widespread application. Summary of the Invention

[0004] In view of this, the present invention provides a fluid-driven fertilizer absorber to solve the problems of complex structure, serious head loss and low fertilization efficiency of the fertilizer absorber in the prior art.

[0005] In order to solve the above technical problems, the technical solutions of the present invention are as follows:

[0006] The present invention provides a liquid-driven fertilizer absorber, comprising: a first shell, a driving structure, a second shell and a conveying structure, the first shell being provided with a mainstream cavity and a driving cavity, the mainstream cavity being suitable for the circulation of a mainstream fluid, and the driving cavity being communicated with the mainstream cavity; the driving structure being provided in the driving cavity, and one end portion of the driving structure extending into the mainstream cavity; one end of the second shell being connected to the first shell, and the second shell being provided with a conveying cavity; one end of the conveying cavity being communicated with the driving cavity, and the other end being communicated with a fertilizer storage cavity; the conveying structure being provided in the conveying cavity, and the other end of the driving structure extending into the conveying cavity, and the conveying structure being sleeved on the other end of the driving structure; the flow of the main fluid drives the driving structure to drive the conveying structure to move, so as to form a negative pressure at the other end of the second shell, so that the fertilizer flows through the conveying cavity and the driving cavity, enters the mainstream cavity and mixes with the main fluid.

[0007] It has the following advantages:

[0008] In the liquid-driven fertilizer absorber provided by the present invention, a primary fluid circulates through a main flow cavity within a first housing for irrigating crops. A driving structure is disposed within the driving cavity, the driving cavity being in communication with the main flow cavity, and a conveying structure is in transmission connection with the driving structure. When the primary fluid flows through the main flow cavity, the primary fluid drives the driving structure to move, thereby driving the conveying structure to move, thereby forming a negative pressure at the other end of the second housing. The other end of the second housing is in communication with a fertilizer storage cavity. Under the action of the negative pressure, fertilizer flows through the conveying cavity and the driving cavity, enters the main flow cavity, mixes with the primary fluid, and then flows out, thereby achieving a fertilization operation while irrigating. The liquid-driven fertilizer absorber has a simple structure and achieves fertilizer delivery by converting the fluid kinetic energy of the primary fluid into mechanical energy that can drive the conveying structure, thereby greatly reducing head loss. The fertilizer and the primary fluid are mixed in the main flow cavity, thereby improving the uniformity of fertilization.

[0009] In some embodiments of the present invention, the driving structure includes a transmission wheel and a transmission shaft, the transmission wheel is arranged in the driving cavity and partially located in the main flow cavity, one end of the transmission shaft is located in the driving cavity, and the other end extends into the conveying cavity, the transmission wheel is sleeved on one end of the transmission shaft and is transmission-connected thereto, and the conveying structure is sleeved on the other end of the transmission shaft and rotates with the transmission shaft.

[0010] In some embodiments of the present invention, the driving chamber is provided at the bottom of the first shell, and the central axis direction of the transmission shaft is perpendicular to the flow direction of the main fluid.

[0011] In some embodiments of the present invention, the transmission shaft is an optical axis structure.

[0012] In some embodiments of the present invention, the liquid-driven fertilizer absorber also includes a connecting structure, which is sleeved on the transmission shaft, one end of the conveying structure is connected to the transmission shaft through the connecting structure, one end of the conveying structure is connected to the connecting structure so that the transmission wheel has a driving state, and the other end of the conveying structure is separated from the connecting structure so that the transmission wheel is in an idling state.

[0013] In some embodiments of the present invention, the connection structure is a connection spline, and one end of the conveying structure is provided with a connection groove, and the connection groove can be matched and connected with the connection spline.

[0014] In some embodiments of the present invention, the conveying structure is an Archimedean screw.

[0015] In some embodiments of the present invention, the liquid-driven fertilizer absorber also includes a control structure, which is movably arranged at the other end of the second shell and is hinged to the conveying structure. The control structure moves toward the side close to the transmission wheel so that the conveying structure is connected to the connecting structure, and the control structure moves toward the side away from the transmission wheel so that the conveying structure is separated from the connecting structure.

[0016] In some embodiments of the present invention, the control structure includes a connecting cylinder and a hinge provided in the connecting cylinder. One end of the conveying structure is hinged to the connecting cylinder through the hinge. The connecting cylinder is threadedly connected to the other end of the second shell. The connecting cylinder is suitable for driving the conveying structure to slide along the length direction of the second shell.

[0017] In some embodiments of the present invention, the second shell is provided with a first limiting portion and a second limiting portion in sequence from a direction away from the transmission wheel to a direction close to the transmission wheel, and the connecting cylinder is provided with a first gear portion and a second gear portion. The first gear portion abuts against the first limiting portion to separate the conveying structure and the connecting structure, and the second gear portion abuts against the second limiting portion to cooperate with the connecting structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 1. An axial line diagram of a liquid-driven fertilizer absorber provided in some embodiments of the present invention;

[0020] Figure 2 A front view block diagram of a liquid-driven fertilizer absorber provided in some embodiments of the present invention;

[0021] Description of reference numerals:

[0022] 1. First shell; 11. Main flow cavity; 12. Drive cavity; 2. Second shell; 21. Delivery cavity; 3. Drive structure; 31. Drive wheel; 32. Drive shaft; 4. Delivery structure; 5. Control structure; 6. Connection structure. DETAILED DESCRIPTION

[0023] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts shall fall within the scope of protection of the present invention.

[0024] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0026] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0027] Reference Figure 1 and Figure 2As shown, the present invention provides a liquid-driven fertilizer absorber, comprising: a first shell 1, a driving structure 3, a second shell 2 and a conveying structure 4. The first shell 1 is provided with a mainstream cavity 11 and a driving cavity 12. The mainstream cavity 11 is suitable for the circulation of the mainstream fluid, and the driving cavity 12 is connected to the mainstream cavity 11; the driving structure 3 is arranged in the driving cavity 12, and one end portion of the driving structure 3 extends into the mainstream cavity 11; one end of the second shell 2 is connected to the first shell 1, and the second shell 2 is provided with a conveying cavity 21; one end of the conveying cavity 21 is connected to the driving cavity 12, and the other end is connected to the fertilizer storage cavity; the conveying structure 4 is arranged in the conveying cavity 21, and the other end of the driving structure 3 extends into the conveying cavity 21, and the conveying structure 4 is sleeved on the other end of the driving structure 3; the flow of the main fluid drives the driving structure 3 to drive the conveying structure 4 to move, so as to form a negative pressure at the other end of the second shell 2, so that the fertilizer flows through the conveying cavity 21 and the driving cavity 12, enters the mainstream cavity 11 and mixes with the main fluid.

[0028] Specifically, in the liquid-driven fertilizer absorber provided by the present invention, a primary fluid circulates through a main flow cavity 11 within a first housing 1 for irrigating crops. A drive structure 3 is disposed within a drive cavity 12, which is in communication with the main flow cavity 11. A delivery structure 4 is in transmission connection with the drive structure 3. When the primary fluid flows through the main flow cavity 11, the primary fluid drives the drive structure 3 to move, thereby driving the delivery structure 4 to move, thereby forming a negative pressure at the other end of the second housing 2. The other end of the second housing 2 is in communication with the fertilizer storage cavity. Under the action of the negative pressure, fertilizer flows through the delivery cavity 21 and the drive cavity 12, enters the main flow cavity 11, mixes with the primary fluid, and then flows out, thereby achieving a fertilization operation while irrigating. The liquid-driven fertilizer absorber has a simple structure and converts the fluid kinetic energy of the primary fluid into mechanical energy that can drive the delivery structure 4, thereby achieving fertilizer delivery, greatly reducing head loss, and the fertilizer and the primary fluid are mixed in the main flow cavity 11, improving the uniformity of fertilization.

[0029] It can be understood that the main fluid is irrigation water, one end of the second shell 2 is connected to the first shell 1, and the other end is connected to the fertilizer storage tank. The fertilizer storage tank is provided with a fertilizer storage chamber, and the second shell 2 is provided with a conveying chamber 21. The two ends of the conveying chamber 21 are respectively connected to the driving chamber 12 and the fertilizer storage chamber for conveying fertilizer. When the main fluid flows in the main flow chamber 11, the main fluid drives the driving structure 3 to move, thereby driving the conveying structure 4 to move, so as to form a negative pressure at the other end of the second shell 2 to realize the conveying of fertilizer. When the fertilizer enters the driving chamber 12 through the conveying chamber 21, it is fully mixed with the main fluid in the driving chamber 12 under the drive of the driving structure 3, thereby improving the mixing efficiency and achieving uniform fertilization.

[0030] In some embodiments of the present invention, the driving structure 3 includes a transmission wheel 31 and a transmission shaft 32. The transmission wheel 31 is arranged in the driving chamber 12 and partially located in the main flow chamber 11. One end of the transmission shaft 32 is located in the driving chamber 12, and the other end extends into the conveying chamber 21. The transmission wheel 31 is sleeved on one end of the transmission shaft 32 and is transmission-connected thereto. The conveying structure 4 is sleeved on the other end of the transmission shaft 32 and rotates with the transmission shaft 32.

[0031] Specifically, when the main fluid flows in the main flow cavity 11, the drive wheel 31 is driven to rotate, wherein one end of the transmission shaft 32 is located in the drive cavity 12 and is fixedly connected to the transmission wheel 31, and the other end extends into the conveying cavity 21 and is transmission-connected to the conveying structure 4. When the main fluid drives the transmission wheel 31 to rotate, the transmission shaft 32 outputs torque, driving the conveying structure 4 to rotate, thereby forming a negative pressure at the other end of the second shell 2.

[0032] In some embodiments of the present invention, the driving chamber 12 is provided at the bottom of the first housing 1 , and the central axis direction of the transmission shaft 32 is perpendicular to the flow direction of the main fluid.

[0033] Specifically, the driving chamber 12 is located at the bottom of the first shell 1 and is connected to the main flow chamber 11. When the main fluid flows, under the action of gravity and fluid kinetic energy, the transmission wheel 31 in the driving chamber 12 is driven to rotate. At this time, the axial direction of the transmission wheel 31 is perpendicular to the flow direction of the main fluid, that is, the contact area between the main fluid and the blades of the transmission wheel 31 is the largest, and thus the conversion rate of the fluid kinetic energy is higher and the head loss is smaller.

[0034] In some embodiments of the present invention, the transmission shaft 32 is an optical axis structure.

[0035] In some embodiments of the present invention, the liquid-driven fertilizer absorber also includes a connecting structure 6, which is sleeved on the transmission shaft 32. One end of the conveying structure 4 is connected to the transmission shaft 32 through the connecting structure 6. One end of the conveying structure 4 is connected to the connecting structure 6 so that the transmission wheel 31 has a driving state, and the other end of the conveying structure 4 is separated from the connecting structure 6 so that the transmission wheel 31 is in an idling state.

[0036] Specifically, the transmission shaft 32 is configured as a smooth axis structure. The conveying structure 4 is connected to the transmission shaft 32 via a connecting structure 6, thereby achieving independent irrigation of the main fluid. The transmission wheel 31 is fixedly connected to the transmission shaft 32. The connecting structure 6 is disposed between the conveying structure 4 and the transmission wheel 31, and the conveying structure 4 is adapted to slide along the length of the transmission shaft 32. When one end of the conveying structure 4 is connected to the transmission shaft 32 via the connecting structure 6, the rotation of the transmission wheel 31 drives the conveying structure 4, and the liquid-driven fertilizer accumulator is in a fertilizing operation state. When the connecting structure 6 and the conveying structure 4 are separated, the transmission wheel 31 drives the transmission shaft 32 to rotate in a smooth axis, and the liquid-driven fertilizer accumulator is only in an irrigation operation state. The smooth axis configuration of the transmission shaft 32 avoids friction between the conveying structure 4 and the transmission shaft 32, thereby extending the service life. In the event of transmission delays or failures, maintenance can be performed by replacing the connecting structure 6, further improving maintenance efficiency and reducing maintenance costs.

[0037] In some embodiments of the present invention, the connecting structure 6 is a connecting spline, and one end of the conveying structure 4 is provided with a connecting groove, which can be matched with the connecting spline.

[0038] In some embodiments of the present invention, the conveying structure 4 is an Archimedean screw.

[0039] Specifically, the connecting structure 6 uses a connecting spline, and one end of the conveying structure 4 is provided with a connecting groove, which can be connected with the connecting spline, so that the transmission wheel 31 is in a driving state. When it is necessary to stop sucking fertilizer, the conveying structure 4 is separated from the connecting structure 6, so that the transmission wheel 31 is idle, preventing the fertilizer from continuing to be sucked in.

[0040] In some embodiments of the present invention, the liquid-driven fertilizer absorber also includes a control structure 5, which is movably arranged at the other end of the second shell 2 and is hinged to the conveying structure 4. The control structure 5 moves toward the side close to the transmission wheel 31 so that the conveying structure 4 is connected with the connecting structure 6. The control structure 5 moves toward the side away from the transmission wheel 31 so that the conveying structure 4 is separated from the connecting structure 6.

[0041] In some embodiments of the present invention, the control structure 5 includes a connecting cylinder and a hinge provided in the connecting cylinder. One end of the conveying structure 4 is hinged to the connecting cylinder through the hinge. The connecting cylinder is threadedly connected to the other end of the second shell 2. The connecting cylinder is suitable for driving the conveying structure 4 to slide along the length direction of the second shell 2.

[0042] In some embodiments of the present invention, the second shell 2 is provided with a first limiting portion and a second limiting portion in sequence from away from to close to the transmission wheel 31, and a first gear portion and a second gear portion are provided in the connecting cylinder. The first gear portion abuts against the first limiting portion to separate the conveying structure 4 and the connecting structure 6 from each other, and the second gear portion abuts against the second limiting portion to make the connecting structure 6 and the conveying structure 4 cooperate with each other.

[0043] Specifically, the control structure 5 is movably mounted at the distal end of the second housing 2 and comprises a connecting cylinder and a hinged member disposed within the connecting cylinder. One end of the conveying structure 4 is hingedly connected to the connecting cylinder via the hinged member, and the connecting cylinder is threadedly connected to the distal end of the second housing 2. Rotating the connecting cylinder causes the conveying structure 4 to slide along the length of the second housing 2, thereby engaging or disengaging with the connecting spline.

[0044] It can be understood that the hinge is a bearing member. The provision of the hinge reduces the friction between the conveying structure 4 and the connecting cylinder during the rotation process, thereby further extending the service life.

[0045] To ensure the stability of the switching action, the second housing 2 is provided with a first and a second stopper, sequentially moving from away from the transmission wheel 31 to approach it. The connecting cylinder is provided with a first and a second stopper, which match these. When the first stopper abuts the first stopper, the conveying structure 4 is disengaged from the connecting spline. When the second stopper abuts the second stopper, the conveying structure 4 is connected to the connecting spline, and the transmission wheel 31 is in the driving state.

[0046] The present invention realizes that the flow of the main fluid can drive the transmission wheel 31 and the transmission shaft 32 to rotate, driving the Archimedean screw to rotate to form a negative pressure, thereby sucking the fertilizer from the fertilizer storage chamber into the conveying chamber 21, and finally entering the main flow chamber 11 through the driving chamber 12 to be fully mixed with the main fluid, thereby achieving the purpose of efficient fertilization. The invention also has a simple structure, low energy consumption, and small head loss, and is easy to promote and use.

[0047] Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention. Such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A liquid driven fertilizer absorber, characterized in that: include: A first housing (1) is provided with a main flow cavity (11) and a drive cavity (12), wherein the main flow cavity (11) is suitable for the circulation of the main fluid, and the drive cavity (12) is in communication with the main flow cavity (11); A driving structure (3) is disposed in the driving cavity (12), and one end portion of the driving structure (3) extends into the main flow cavity (11); A second shell (2) is connected to the first shell (1) at one end, and the second shell (2) is provided with a conveying cavity (21); one end of the conveying cavity (21) is communicated with the driving cavity (12), and the other end is communicated with the fertilizer storage cavity; A conveying structure (4), wherein the conveying structure (4) is arranged in the conveying cavity (21), the other end of the driving structure (3) extends into the conveying cavity (21), and the conveying structure (4) is sleeved on the other end of the driving structure (3); The main fluid flows, driving the driving structure (3) to drive the conveying structure (4) to move, thereby forming a negative pressure at the other end of the second shell (2), so that the fertilizer flows through the conveying cavity (21) and the driving cavity (12), enters the main flow cavity (11), and mixes with the main fluid.

2. The liquid-driven fertilizer absorber according to claim 1, characterized in that: The driving structure (3) comprises a transmission wheel (31) and a transmission shaft (32); the transmission wheel (31) is arranged in the driving cavity (12) and partially located in the main flow cavity (11); one end of the transmission shaft (32) is located in the driving cavity (12), and the other end extends into the conveying cavity (21); the transmission wheel (31) is sleeved on one end of the transmission shaft (32) and is transmission-connected thereto; the conveying structure (4) is sleeved on the other end of the transmission shaft (32) and rotates with the transmission shaft (32).

3. The liquid-driven fertilizer absorber according to claim 2, characterized in that: The driving chamber (12) is provided at the bottom of the first housing (1), and the central axis direction of the transmission shaft (32) is perpendicular to the flow direction of the main fluid.

4. The liquid-driven fertilizer absorber according to claim 3, characterized in that: The transmission shaft (32) is an optical axis structure.

5. The liquid driven fertilizer absorber according to claim 2, characterized in that: The invention also includes a connecting structure (6), wherein the connecting structure (6) is sleeved on the transmission shaft (32), and one end of the conveying structure (4) is connected to the transmission shaft (32) via the connecting structure (6). One end of the conveying structure (4) is connected to the connecting structure (6) so that the transmission wheel (31) has a driving state, and the other end of the conveying structure (4) is separated from the connecting structure (6) so that the transmission wheel (31) is in an idling state.

6. The liquid-driven fertilizer absorber according to claim 5, characterized in that: The connecting structure (6) is a connecting spline, and one end of the conveying structure (4) is provided with a connecting groove, and the connecting groove can be matched and connected with the connecting spline.

7. The liquid-driven fertilizer absorber according to any one of claims 1 to 6, characterized in that: The conveying structure (4) is an Archimedean screw.

8. The liquid-driven fertilizer absorber according to claim 5, characterized in that: The invention also includes a control structure (5), which is movably arranged at the other end of the second shell (2) and is hinged to the conveying structure (4). The control structure (5) moves toward the side close to the transmission wheel (31) so that the conveying structure (4) is connected to the connecting structure (6). The control structure (5) moves toward the side away from the transmission wheel (31) so that the conveying structure (4) is separated from the connecting structure (6).

9. The liquid-driven fertilizer absorber according to claim 8, characterized in that: The control structure (5) includes a connecting cylinder and a hinged member arranged in the connecting cylinder. One end of the conveying structure (4) is hinged to the connecting cylinder through the hinged member. The connecting cylinder is threadedly connected to the other end of the second shell (2). The connecting cylinder is suitable for driving the conveying structure (4) to slide along the length direction of the second shell (2).

10. The liquid-driven fertilizer absorber according to claim 9, characterized in that: The second shell (2) is provided with a first limiting portion and a second limiting portion in sequence from a direction away from the transmission wheel (31) to a direction close to the transmission wheel (31), and the connecting cylinder is provided with a first shift portion and a second shift portion. The first shift portion abuts against the first limiting portion so that the conveying structure (4) and the connecting structure (6) are separated from each other, and the second shift portion abuts against the second limiting portion so that the connecting structure (6) and the conveying structure (4) cooperate with each other.

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