Fertilizer box with fertilizer shortage alarm function

Abstract

The utility model belongs to the technical field of agricultural machinery, and discloses a fertilizer box with a fertilizer shortage alarm function, which comprises a hopper, a discharge port is arranged at the bottom of the hopper, a sensing device is mounted on the inner wall of the hopper, the sensing device comprises a sealed flexible rubber sleeve, a first contact and a second contact, and the first contact and the second contact are arranged in the flexible rubber sleeve. The first contact is close to the side, away from the inner wall of the hopper, of the flexible rubber sleeve, the second contact is close to the side, close to the inner wall of the hopper, of the flexible rubber sleeve, and the first contact and the second contact are correspondingly arranged at intervals and elastically connected. According to the utility model, the detection precision of the fertilizer amount is improved, an alarm can be automatically triggered when the fertilizer is insufficient, and an operator is prevented from interrupting the operation due to the insufficient fertilizer in the fertilization process, so that the working intensity is reduced, and the working efficiency is improved. Meanwhile, the requirements for disassembly and inspection during equipment maintenance are reduced, and the overall convenience and reliability of fertilization operation are further optimized.

Description

Technical Field

[0001] The utility model belongs to the technical field of agricultural machinery, in particular to a fertilizer box with a fertilizer shortage alarm. Background Art

[0002] Fertilizer spreaders are widely used in agricultural production, but they present several practical challenges. First, they are difficult to operate. Operators need to simultaneously operate and monitor the fertilizer application, which not only increases workload but also distracts attention, reducing efficiency. Second, they are difficult to maintain. When the fertilizer spreader experiences fertilizer shortages or blockages, the device fails to automatically sound an alarm, forcing the operator to disassemble the machine for inspection, which also increases workload and affects efficiency. Utility Model Content

[0003] The utility model provides a fertilizer box with a fertilizer shortage alarm, which is used to solve the existing technical problems.

[0004] In order to solve the above technical problems, the technical solutions proposed by the present invention are as follows:

[0005] A fertilizer box with a fertilizer shortage alarm includes a hopper, a discharge port is provided at the bottom of the hopper, and a sensing device is mounted on the inner wall of the hopper. The sensing device includes a sealed flexible rubber sleeve, and a first contact and a second contact arranged in the flexible rubber sleeve, wherein the first contact is close to a side of the flexible rubber sleeve away from the inner wall of the hopper, and the second contact is close to a side of the flexible rubber sleeve close to the inner wall of the hopper. The first contact and the second contact are arranged at corresponding intervals and are elastically connected.

[0006] As a further improvement of the above technical solution:

[0007] A hinged swing rod and a pressure arm are also provided in the flexible rubber sleeve. The swing rod is connected to the first contact point, and the pressure arm is connected to the second contact point.

[0008] A return spring is also provided in the flexible rubber sleeve, and the return spring is provided between the rocker arm and the pressure arm.

[0009] The swing arm and the pressure arm are both provided with limit piles, and the two limit piles are arranged at corresponding intervals.

[0010] Both ends of the return spring are clamped with the limit piles.

[0011] The end of the swing rod hinged to the pressure arm is higher than the end connected to the first contact point.

[0012] The pressing arm is arranged on one side of the flexible rubber sleeve close to the hopper.

[0013] A plurality of sensor devices are mounted on the inner wall of the hopper, and the plurality of sensor devices are respectively located at different heights of the hopper.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The sensor device, comprised of a sealed flexible rubber sleeve and internal first and second contacts, compresses the sleeve when fertilizer is in the hopper, causing the first and second contacts to touch. Once the fertilizer falls into the hopper, the first and second contacts separate, allowing the sensor to flexibly adapt to changes in fertilizer levels. This not only improves the accuracy of fertilizer level detection but also automatically triggers an alarm when fertilizer is insufficient, preventing operators from interrupting fertilization due to insufficient fertilizer, thereby reducing workload and improving efficiency. This design also reduces the need for disassembly and inspection during equipment maintenance, further optimizing the overall convenience and reliability of fertilization operations. Furthermore, the sealed flexible rubber sleeve prevents fertilizer or moisture from entering the sensor device, preventing damage to its internal components and extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the 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.

[0017] Figure 1 It is a structural diagram of a fertilizer box with fertilizer shortage alarm.

[0018] Figure 2 yes Figure 1 A partial enlarged view of .

[0019] Legend:

[0020] 1. Hopper; 2. Discharge port; 3. Sensing device; 31. Flexible rubber sleeve; 32. First contact; 33. Second contact; 34. Rocker arm; 35. Pressure arm; 36. Return spring; 37. Limit pile. DETAILED DESCRIPTION

[0021] In order to facilitate the understanding of the present invention, the present invention will be described in more comprehensive and detailed manner below in conjunction with the accompanying drawings and preferred embodiments of the specification, but the protection scope of the present invention is not limited to the following specific embodiments.

[0022] Unless otherwise defined, all technical terms used hereinafter have the same meanings as those generally understood by those skilled in the art. The technical terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the scope of protection of the present invention.

[0023] Unless otherwise specified, various raw materials, reagents, instruments and equipment used in the present invention can be purchased from the market or prepared by existing methods.

[0024] Example: Figure 1 and Figure 2 As shown, the fertilizer box with fertilizer shortage alarm of this embodiment includes a hopper 1, a discharge port 2 is provided at the bottom of the hopper 1, a sensor device 3 is mounted on the inner wall of the hopper 1, and the sensor device 3 includes a sealed flexible rubber sleeve 31, and a first contact 32 and a second contact 33 provided in the flexible rubber sleeve 31, the first contact 32 is close to the side of the flexible rubber sleeve 31 away from the inner wall of the hopper 1, and the second contact 33 is close to the side of the flexible rubber sleeve 31 close to the inner wall of the hopper 1, and the first contact 32 and the second contact 33 are arranged at corresponding intervals and elastically connected. Through the sensor device 3, which consists of a sealed flexible rubber sleeve 31 and internal first and second contacts 32, 33, fertilizer in the hopper 1 squeezes the flexible rubber sleeve 31, causing the first and second contacts 32, 33 to touch. After the fertilizer falls into the hopper 1, the first and second contacts 32, 33 separate, allowing the sensor device 3 to flexibly adapt to changes in fertilizer levels. This not only improves the accuracy of fertilizer quantity detection but also automatically triggers an alarm when fertilizer is insufficient, preventing the operator from interrupting the fertilization process due to insufficient fertilizer, thereby reducing workload and improving work efficiency. This design also reduces the need for disassembly and inspection during equipment maintenance, further optimizing the overall convenience and reliability of fertilization operations. Furthermore, the sealed flexible rubber sleeve 31 prevents fertilizer or moisture from entering the sensor device 3, avoiding damage to its internal components and thus extending its service life.

[0025] In this embodiment, a hinged rocker arm 34 and a pressure arm 35 are further provided within the flexible rubber sleeve 31. The rocker arm 34 is connected to the first contact 32, and the pressure arm 35 is connected to the second contact 33. This further enhances the flexibility and responsiveness of the sensor device 3, allowing the contacts to accurately react to changes in fertilizer levels, ensuring timely detection of fertilizer status. This flexible structure not only increases the sensitivity of the sensor device 3 to fertilizer changes but also mitigates the problem of reduced fertilization efficiency caused by insufficient fertilizer in the prior art.

[0026] In this embodiment, a return spring 36 is also provided within the flexible rubber sleeve 31 and positioned between the rocker arm 34 and the pressure arm 35. This further enhances the stability and reliability of the sensor device 3. The return spring 36 ensures that the rocker arm 34 and the pressure arm 35 quickly return to their initial positions after each test, preventing false alarms caused by persistent fertilizer fluctuations. This effectively reduces operational inconveniences caused by slow equipment response and improves the response speed and accuracy of the sensor device 3. Furthermore, the reset mechanism simplifies equipment maintenance, ensuring that operators can focus on fertilizing operations without having to frequently adjust the sensor, thereby improving overall work efficiency.

[0027] In this embodiment, both the swing arm 34 and the pressure arm 35 are equipped with limit posts 37, which are spaced apart from each other. This significantly enhances the safety and stability of the sensing device 3. The provision of limit posts 37 effectively prevents excessive displacement of the swing arm 34 and pressure arm 35 during operation, ensuring they always operate within a reasonable range and avoiding failures due to structural loss of control.

[0028] In this embodiment, both ends of the reset spring 36 are engaged with the limit posts 37. This ensures that the swing arm 34 and the pressure arm 35 return to their initial positions quickly and accurately after each test, preventing false alarms caused by improper positioning of the reset spring 36. This effectively reduces the inaccuracy of the sensor device 3 caused by fertilizer fluctuations in the background art, making fertilizer monitoring more accurate. At the same time, the engagement design of the reset spring 36 simplifies the assembly and maintenance of the sensor device 3, further improving the ease of operation of the device.

[0029] In this embodiment, the end of the swing arm 34 hinged to the pressure arm 35 is higher than the end connected to the first contact 32. The hinged end of the swing arm 34 and the pressure arm 35 is arranged upward to prevent the sensor device 3 from blocking the falling of the fertilizer.

[0030] In this embodiment, the pressing arm 35 is provided on a side of the flexible rubber sleeve 31 close to the hopper 1. The pressing arm 35 can facilitate mounting on the hopper 1.

[0031] In this embodiment, multiple sensing devices 3 are mounted on the inner wall of the hopper 1, located at different heights within the hopper 1. This effectively implements full-scale fertilizer monitoring, ensuring that operators can monitor fertilizer remaining status in real time and adjust fertilization strategies promptly, thereby avoiding interruptions caused by insufficient fertilizer and improving fertilization efficiency and accuracy. Furthermore, the presence of multiple sensing devices 3 enhances system redundancy and monitoring reliability, ensuring accurate reflection of fertilizer status in all circumstances and providing stronger support for agricultural production.

Claims

1. A fertilizer box with a fertilizer shortage alarm, comprising a hopper (1), wherein a discharge port (2) is provided at the bottom of the hopper (1), characterized in that: A sensing device (3) is mounted on the inner wall of the hopper (1), and the sensing device (3) comprises a sealed flexible rubber sleeve (31), and a first contact (32) and a second contact (33) arranged in the flexible rubber sleeve (31), wherein the first contact (32) is close to a side of the flexible rubber sleeve (31) away from the inner wall of the hopper (1), and the second contact (33) is close to a side of the flexible rubber sleeve (31) close to the inner wall of the hopper (1), and the first contact (32) and the second contact (33) are arranged at corresponding intervals and are elastically connected.

2. The fertilizer box with fertilizer shortage alarm according to claim 1, characterized in that: A hinged swing rod (34) and a pressure arm (35) are also provided in the flexible rubber sleeve (31), wherein the swing rod (34) is connected to the first contact point (32), and the pressure arm (35) is connected to the second contact point (33).

3. The fertilizer box with fertilizer shortage alarm according to claim 2, characterized in that: A return spring (36) is further provided in the flexible rubber sleeve (31), and the return spring (36) is provided between the rocker arm (34) and the pressure arm (35).

4. The fertilizer box with fertilizer shortage alarm according to claim 3, characterized in that: The swing rod (34) and the pressure arm (35) are both provided with a limit pile (37), and the two limit piles (37) are arranged at intervals.

5. The fertilizer box with fertilizer shortage alarm according to claim 4, characterized in that: Both ends of the return spring (36) are engaged with the limit pile (37).

6. The fertilizer box with fertilizer shortage alarm according to claim 2, characterized in that: The rocker (34) has an end hinged to the pressure arm (35) that is higher than an end connected to the first contact point (32).

7. The fertilizer box with fertilizer shortage alarm according to claim 2, characterized in that: The pressing arm (35) is provided on a side of the flexible rubber sleeve (31) close to the hopper (1).

8. The fertilizer box with fertilizer shortage alarm according to any one of claims 1 to 7, characterized in that: A plurality of sensor devices (3) are mounted on the inner wall of the hopper (1), and the plurality of sensor devices (3) are respectively located at different heights of the hopper (1).

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