Liftable paddy field mud layer detection device

Abstract

The utility model discloses a liftable paddy field mud layer detection device, which comprises a fixed cross beam, a supporting seat plate, an extension spring, a lifting rod and an operating handle, one end of the supporting seat plate is connected onto the fixed cross beam through a bolt and a nut, the other end of the supporting seat plate is hinged with the lifting rod, one end of the extension spring is hung on the supporting seat plate, and the other end of the extension spring is hinged with the operating handle. A sensor is mounted at the tail end of the lifting rod; one end of the operating handle is hinged to the lifting rod, and the other end of the operating handle is connected to the fixed cross beam in a sliding mode. According to the liftable paddy field mud layer detection device, the fixed cross beam is detachably mounted on the rack at the front end of the rice transplanter through the U-shaped buckle, so that the sensor descends into a mud layer and is automatically locked during operation, ridge crossing is realized, the sensor ascends during steering, detection time lag is counteracted, damage to the sensor is avoided, and the problem that an existing sensor is fixed at the rear part of a rice transplanting and fertilizing machine and is difficult to move is solved. And the measurement target is not accurate due to the influence of time lag.

Description

Technical Field

[0001] This utility model relates to the field of paddy field soil fertility detection technology, specifically a height-adjustable paddy field mud layer detection device. Background Technology

[0002] Traditional rice fertilization relies on experience and cannot be tailored to soil fertility, leading to fertilizer waste and environmental pollution. Variable-rate fertilization (VRF) technology for rice, which applies fertilizer based on soil fertility values, results in high fertilizer utilization and is a much-needed technology in current agricultural production. However, soil fertility detection requires sensors. These sensors need to be lowered into the mud layer during machine operation and raised again when the machine crosses embankments or turns; otherwise, the sensors are easily damaged.

[0003] Existing rice transplanter fertilizer applicators fix sensors under the rear working parts, and the sensors rise and fall with the working parts. However, due to the time lag in soil detection, the fertilizer applicator installed at the rear cannot accurately correspond to the soil fertility value detected at the rear of the machine during the machine's movement. Utility Model Content

[0004] The purpose of this utility model is to provide a liftable paddy field mud layer detection device, which fixes the sensor to the front of the working machine, so that it can descend into the mud layer and automatically lock during operation, and rise when crossing the embankment or turning, thereby offsetting the detection time lag and avoiding sensor damage, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a liftable paddy field mud layer detection device, comprising a fixed crossbeam, a support plate, a tension spring, a lifting rod, and an operating handle. One end of the support plate is connected to the fixed crossbeam by bolts and nuts, and the other end of the support plate is hinged to the lifting rod. One end of the tension spring is attached to the support plate, and the other end is attached to the lifting rod. A sensor is installed at the end of the lifting rod. One end of the operating handle is hinged to the lifting rod, and the other end of the operating handle is slidably connected to the fixed crossbeam.

[0006] Furthermore, the support plate is provided with a spring fixing pin for connecting the tension spring.

[0007] Furthermore, the lifting rod is provided with a lower fixing pin for connecting the tension spring.

[0008] Furthermore, the fixed crossbeam is detachably mounted on the frame at the front end of the rice transplanter via a U-shaped buckle.

[0009] Furthermore, the two sides of the end of the support plate are provided with an upper limit block and a lower limit block for restricting the vertical movement of the lifting rod.

[0010] Furthermore, the support plate is provided with a rod-base plate connecting pin for hinged lifting rod.

[0011] Furthermore, the lifting rod is provided with a rod-handle connecting pin for hinged operation handle.

[0012] Furthermore, the operating handle is provided with a double-convex slide rail with two protruding structures, and the double-convex slide rail is installed in the slide rail limiting pin on the fixed crossbeam.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This adjustable paddy field mud layer detection device is detachably mounted on the frame at the front of the rice transplanter via a fixed crossbeam and U-shaped buckles. During operation, the sensor descends into the mud layer and automatically locks in place. When crossing ridges or turning, the sensor rises, thus offsetting detection time lag and preventing sensor damage. This solves the problem of inaccurate measurement targets caused by time lag when existing sensors are fixed at the rear of the rice transplanter and fertilizer applicator. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the lowering state of the lifting rod of this utility model;

[0016] Figure 2 This is a schematic diagram of the lifting rod in the rising state of this utility model;

[0017] Figure 3 This is a schematic diagram of the three-dimensional structure of this utility model in a descending state;

[0018] Figure 4 This is a schematic diagram of the three-dimensional structure of this utility model in its ascending state.

[0019] In the diagram: 1. Fixed crossbeam; 11. Slide rail limit pin; 2. Support base plate; 21. Upper spring fixing pin; 22. Lower limit block; 23. Upper limit block; 24. Rod-base plate connecting pin; 3. Tension spring; 4. Lifting rod; 41. Lower spring fixing pin; 42. Sensor; 43. Rod-handle connecting pin; 5. Operating handle; 51. Double convex slide rail. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4This embodiment of a liftable paddy field mud layer detection device includes a fixed crossbeam 1, a support plate 2, a tension spring 3, a lifting rod 4, and an operating handle 5. One end of the support plate 2 is connected to the fixed crossbeam 1 at a certain angle by bolts and nuts, and the other end of the support plate 2 is hinged to the lifting rod 4. Specifically, the support plate 2 is provided with a rod-base plate connecting pin 24 for hinged lifting rod 4. One end of the tension spring 3 is hooked onto the support plate 2, and the support plate 2 is provided with an upper spring fixing pin 21 for connecting the tension spring 3. The other end of the tension spring 3 is hooked onto the lifting rod 4, and the lifting rod 4 is provided with a lower spring fixing pin 41 for connecting the tension spring 3. A sensor is installed at the end of the lifting rod 4. The device 42 and sensor 42 follow the lifting rod 4 up and down. The upper limit block 23 and lower limit block 22 are provided on both sides of the end of the support plate 2 to limit the up and down movement of the lifting rod 4. One end of the operating handle 5 is hinged to the lifting rod 4. The lifting rod 4 is provided with a rod-handle connecting pin 43 for hinged to the operating handle 5. The other end of the operating handle 5 is slidably connected to the fixed crossbeam 1. Specifically, the operating handle 5 is provided with a double-convex slide rail 51 with two protruding structures. The double-convex slide rail 51 is installed in the slide rail limiting pin 11 on the fixed crossbeam 1. The movement position of the operating handle 5 is limited by the double-convex slide rail 51 and the slide rail limiting pin 11. The entire device can be detachably installed on the frame at the front of the rice transplanter by the fixed crossbeam 1 through a U-shaped buckle.

[0022] This embodiment provides a liftable paddy field mud layer detection device, which has two states: one is... Figure 1 The lowering state shown indicates that the lifting rod 4 is in the lowering state, i.e., the device is in operation. The slide limit pin 11 is located in the upper convex groove of the double convex slide 51, and the sensor 42 is located in the mud layer; another type is... Figure 2 The device is in the rising state shown in the figure. At this time, the lifting rod 4 is in the rising state, that is, the device is not in the working state. The slide limit pin 11 is located in the lower convex groove of the double convex slide 51, and the sensor 42 is located above the mud layer.

[0023] Working principle: The lifting paddy field mud layer detection device of this utility model is controlled by the operating handle 5 in both working and non-working states. That is, when the device is working in the field, it is in the operating state. Figure 1As shown, when the rice transplanter and fertilizer applicator crosses the ridge or turns, lift the operating handle 5 diagonally upwards, causing it to rotate slightly around the rod-handle connecting pin 43. This disengages the convex hole on the double-convex slide rail 51 from the slide rail limit pin 11. Then, pull the operating handle 5 upwards to move the lifting rod 4 upwards. At this time, it is necessary to overcome the tension of the tension spring 3. When the lifting rod 4 moves to the position where the upper fixing pin 21 of the spring, the rod-seat plate connecting pin 41, and the lower fixing pin 24 of the spring are in a straight line, the tension of the tension spring 3 is at its maximum. After passing this position, the tension spring 3 contracts. When the lifting rod 4 is moved, under the combined upward pulling action of the operating handle 5 and the tension spring 3, the lifting rod 4 moves rapidly upward. When the end of the double-convex slide rail 51 on the operating handle 5 contacts the slide rail limit pin 11, gently press the operating handle 5 downward at an angle, placing the lower convex hole of the double-convex slide rail 51 into the slide rail limit pin 11, locking the operating handle 5 and the lifting rod 4. Because the operating handle 5 has a certain weight, it is fixed by its own downward pressure. Unless manually lifted, it will not detach from the slide rail limit pin 11 on its own. Figure 2 As shown; conversely, when transitioning from the non-working state to the working state, lift the operating handle 5 to disengage the lower convex hole of the double-convex slide rail 51 from the slide rail limiting pin 11, then press the operating handle 5 down. Under the combined action of the tension spring 3 and the operating handle 5, the lifting rod 4 descends rapidly, placing the upper convex hole of the double-convex slide rail 51 into the slide rail limiting pin 11, i.e., the device is in the working state, as shown. Figure 1 As shown.

[0024] In summary, the present invention provides a liftable paddy field mud layer detection device, which is detachably installed on the frame at the front end of the rice transplanter by a fixed crossbeam 1 via a U-shaped buckle. During operation, the sensor 42 descends into the mud layer and automatically locks, while the sensor 42 rises when crossing ridges or turning. This compensates for the detection time lag and avoids damage to the sensor 42, solving the problem of inaccurate measurement of the target due to the time lag caused by the existing sensor 42 being fixed at the rear of the rice transplanter and fertilizer applicator.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A liftable paddy field mud layer detection device, comprising a fixed crossbeam (1), a support base plate (2), a tension spring (3), a lifting rod (4), and an operating handle (5), characterized in that: One end of the support plate (2) is connected to the fixed crossbeam (1) by bolts and nuts, and the other end of the support plate (2) is hinged to the lifting rod (4). One end of the tension spring (3) is attached to the support plate (2), and the other end is attached to the lifting rod (4). A sensor (42) is installed at the end of the lifting rod (4). One end of the operating handle (5) is hinged to the lifting rod (4), and the other end of the operating handle (5) is slidably connected to the fixed crossbeam (1).

2. The adjustable paddy field mud layer detection device according to claim 1, characterized in that: The support plate (2) is provided with a spring fixing pin (21) for connecting the tension spring (3).

3. The movable paddy field mud layer detection device according to claim 1, characterized in that: The lifting rod (4) is provided with a spring lower fixing pin (41) for connecting the tension spring (3).

4. The movable paddy field mud layer detection device according to claim 1, characterized in that: The fixed crossbeam (1) is detachably installed on the frame at the front of the rice transplanter via a U-shaped buckle.

5. The movable paddy field mud layer detection device according to claim 1, characterized in that: The support plate (2) has an upper limit block (23) and a lower limit block (22) on both sides of its end for limiting the up and down movement of the lifting rod (4).

6. The adjustable paddy field mud layer detection device according to claim 1, characterized in that: The support plate (2) is provided with a rod-base plate connecting pin (24) for hinged lifting rod (4).

7. The movable paddy field mud layer detection device according to claim 1, characterized in that: The lifting rod (4) is provided with a rod-handle connecting pin (43) for hinged operation handle (5).

8. The movable paddy field mud layer detection device according to claim 1, characterized in that: The operating handle (5) is provided with a double-convex slide (51) with two protrusions, and the double-convex slide (51) is installed in the slide limit pin (11) on the fixed crossbeam (1).

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