Weighing device and plant state detection equipment

Abstract

The utility model relates to a weighing device and plant state detection equipment. The weighing device comprises a first conveying unit, a first jacking unit and a weighing unit, the first conveying unit comprises a first support, a first conveying line and a second conveying line, the first conveying line and the second conveying line are arranged on the first support side by side at intervals, and an avoiding opening is defined by the first support, the first conveying line and the second conveying line. The first conveying line and the second conveying line are used for supporting trays and conveying the trays to or away from the avoiding opening; the first jacking unit is installed on the first support and located at the receding opening so as to allow the first jacking unit to lift the tray when the tray is located at the receding opening. And the weighing unit is mounted on the first jacking unit so as to allow the weighing unit to weigh the tray when the tray is lifted by the first jacking unit.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of plant growth management, in particular to a weighing device and plant state detection equipment. BACKGROUND

[0002] In the process of growth management of plants in the potted plants, the plants need to be watered regularly, and the potted plants need to be weighed before watering. Among them, the weighing process and the watering process are carried out in the weighing area and the watering area respectively, and the management personnel need to manually transfer the potted plants to the watering area after the weighing of the potted plants in the weighing area is completed. Because the weight of the potted plants is very large, the carrying process is very time-consuming and laborious. UTILITY MODEL CONTENTS

[0003] Therefore, it is necessary to provide a weighing device and plant state detection equipment to solve the problem that the process of transferring the potted plants from the weighing area to the watering area is time-consuming and laborious.

[0004] A weighing device, comprising a first conveying unit, a first jacking unit and a weighing unit;

[0005] The first conveying unit comprises a first support, a first conveying line and a second conveying line, the first conveying line and the second conveying line are arranged side by side and spaced apart on the first support, and the first support, the first conveying line and the second conveying line form an avoiding opening, the first conveying line and the second conveying line are used to support the tray and send the tray to or away from the avoiding opening;

[0006] The first jacking unit is installed on the first support and located at the avoiding opening, so as to allow the first jacking unit to lift the tray when the tray is located at the avoiding opening;

[0007] The weighing unit is installed on the first jacking unit, so as to allow the weighing unit to weigh the tray when the first jacking unit lifts the tray.

[0008] The first jacking unit comprises a second support, a transmission rack, a third support, a motor, a transmission gear, a guide rod, a guide pipe, a lifting plate, a sliding block and a sliding rail;

[0009] The second support is fixed on the first support, the transmission rack is fixed on the second support, the motor is installed on the third support, the transmission gear is installed on the output shaft of the motor, and the transmission gear is engaged with the transmission rack;

[0010] The guide rod is arranged in the middle of the guide pipe, one of the guide rod and the guide pipe is fixed on the second support, and the other is fixed on the third support;

[0011] The weighing unit is located on the upper surface of the lifting plate, the lifting plate is installed on the third support, the sliding block is slidingly arranged on the sliding rail, one of the sliding block and the sliding rail is fixed on the lifting plate, and the other is fixed on the second support.

[0012] The first jacking unit further comprises a limiting block, the limiting block is installed on the second support or the third support, and the limiting block is used for limiting the third support in the axial direction of the guide rod.

[0013] The first jacking unit further comprises a photoelectric sensor and a shielding block, one of the photoelectric sensor and the shielding block is installed on the second support, and the other is installed on the third support, the photoelectric sensor is electrically connected to the motor, so that the photoelectric sensor and the shielding block cooperate to limit the third support in the axial direction of the guide rod.

[0014] The weighing unit comprises a first support plate, a weighing sensor and a positioning pin, the weighing sensor is supported on the upper surface of the lifting plate, the lower surface of the first support plate is supported on the weighing sensor, and the upper surface of the first support plate is used for supporting the tray.

[0015] The positioning pin is arranged on the first support plate, and the positioning pin is at least partially located above the first support plate, so that the tray is positioned in the horizontal direction when the tray is supported on the upper surface of the first support plate.

[0016] A plant state detection device comprises a tray, a watering device and the weighing device, the first support is connected with the watering device, so that the first conveying line and the second conveying line can send the tray from the avoiding opening to the watering device.

[0017] The watering device comprises a fourth support and a universal curved pipe, the universal curved pipe is installed on the fourth support, and the universal curved pipe is used for watering the plants on the tray.

[0018] The plant state detection device further comprises a first transfer line and a second transfer line, the first transfer line and the second transfer line are arranged side by side between the watering device and the weighing device.

[0019] A first camera is arranged at the first transfer line, a second camera is arranged at the second transfer line, and the first camera and the second camera are used for photographing the plants on the tray.

[0020] The end part of the first transfer line at the weighing device is provided with a carrying device, and the carrying device is used for transferring the tray from the weighing device to the first transfer line.

[0021] The carrying device comprises a horizontal moving unit, a second jacking unit and a fifth support, the horizontal moving unit is installed on the fifth support, and the second jacking unit is installed on the output end of the horizontal moving unit.

[0022] The beneficial effects of the present utility model are as follows:

[0023] The first conveying line and the second conveying line can stably support the tray and the potted plant on the tray, and then transport the tray and the potted plant.

[0024] When the first conveying line and the second conveying line transport the tray to the avoiding opening, the first jacking unit can lift the weighing unit, the weighing unit can contact the bottom of the tray through the avoiding opening, and then the tray is spaced from the first conveying line and the second conveying line, and at this time the weighing unit can complete the weighing of the potted plant.

[0025] After the weighing of the potted plant is completed, the first jacking unit controls the weighing unit to move downward, so that the tray is supported on the first conveying line and the second conveying line again, and the first conveying line and the second conveying line can send the potted plant on the tray to the watering area.

[0026] Since the avoiding opening and the weighing unit are located in the weighing area, the weighing device provided by the present utility model not only can complete the weighing of the potted plant in the weighing area, but also can send the potted plant to the watering area through the first conveying line and the second conveying line after the weighing is completed, and automatically realizes the transfer process of the potted plant from the weighing area to the watering area, greatly improves the transfer efficiency and reduces the labor cost. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is a perspective structural schematic view of the weighing device in the embodiment 1 of the present utility model;

[0028] Figure 2 It is a side view structural schematic view of the weighing device in the embodiment 1 of the present utility model;

[0029] Figure 3 It is a perspective structural schematic view of the first conveying unit in the embodiment 1 of the present utility model;

[0030] Figure 4 It is a front view structural schematic view of the weighing unit in the embodiment 1 of the present utility model;

[0031] Figure 5 It is a perspective structural schematic view of the weighing unit and the first jacking unit after assembly in the embodiment 1 of the present utility model;

[0032] Figure 6 It is the three-dimensional structure schematic view of the tray in the embodiment 1 of the utility model;

[0033] Figure 7 It is the overhead structure schematic view of the plant state detection equipment in the embodiment 2 of the utility model;

[0034] Figure 8 It is the side view structure schematic of the watering device in the embodiment 2 of the utility model Figure 1 ;

[0035] Figure 9 It is the side view structure schematic of the watering device in the embodiment 2 of the utility model Figure 2 ;

[0036] Figure 10 It is the three-dimensional structure schematic view of the carrying device in the embodiment 2 of the utility model.

[0037] Reference signs:

[0038] 1, first conveying unit;11, first support;12, first conveying line;13, second conveying line;14, avoiding port;2, first jacking unit;21, second support;22, transmission rack;23, third support;24, motor;25, transmission gear;26, guide rod;27, guide pipe;28, lifting plate;29, slide rail;210, limit block;211, photoelectric sensor;212, shielding block;3, weighing unit;31, first support plate;32, weighing sensor;33, positioning pin;4, tray;41, positioning hole;5, watering device;51, fourth support;52, universal elbow;6, first transfer line;7, second transfer line;8, carrying device;81, horizontal movement unit;82, second jacking unit;83, fifth support. DETAILED DESCRIPTION

[0039] In order to make the above-mentioned purpose, features and advantages of the utility model more apparent and easy to understand, the specific implementation of the utility model is described in detail below in conjunction with the drawings. In the following description, a lot of specific details are set forth in order to fully understand the utility model. But the utility model can be implemented in many other ways different from the description, and those skilled in the art can make similar improvements without departing from the connotation of the utility model, so the utility model is not limited by the following disclosed specific embodiments.

[0040] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0041] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0042] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise specifically limited. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0043] In the utility model, unless otherwise specifically defined and limited, the first feature "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" of the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" of the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0044] It is to be understood that when an element such as a layer, region or substrate is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element or intervening elements can be present. In contrast, when an element is referred to as being "directly on" or "directly connected to" another element, there are no intervening elements present. It will be understood that, when a part is referred to as being "formed on" another part, it can be formed directly on the other part or intervening parts can be present. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0045] Embodiment 1

[0046] The embodiment provides a weighing device which can be used for weighing potted plants. Specifically referring to Figures 1-3 , the weighing device comprises a first conveying unit 1, a first jacking unit 2 and a weighing unit 3.

[0047] The first conveying unit 1 comprises a first support 11, a first conveying line 12 and a second conveying line 13, and the first conveying line 12 and the second conveying line 13 are arranged side by side and spaced apart on the first support 11, so that the first support 11, the first conveying line 12 and the second conveying line 13 form an avoiding opening 14. The first jacking unit 2 is installed on the first support 11 and located at the avoiding opening 14, and the weighing unit 3 is installed on the first jacking unit 2, and the first jacking unit 2 can control the weighing unit 3 to ascend and descend at the avoiding opening 14.

[0048] The working process of the weighing device in the embodiment generally comprises the following steps:

[0049] Step S1: First, place the tray 4 on the first conveying line 12 and the second conveying line 13, so that the tray 4 is stably supported, and then place the potted plant on the tray 4;

[0050] The first conveying line 12 and the second conveying line 13 can be a conveying chain or a conveying belt.

[0051] Step S2: The first conveying line 12 and the second conveying line 13 cooperate to send the tray 4 to the avoiding opening 14, and then the first conveying line 12 and the second conveying line 13 pause to make the tray 4 stay at the avoiding opening 14;

[0052] Step S3: After the tray 4 is stably stopped at the avoiding opening 14, the first jacking unit 2 starts to control the weighing unit 3 to move upward, and the weighing unit 3 can contact the bottom of the tray 4 through the avoiding opening 14, and then lift the tray 4 until the tray 4 is spaced apart from the first conveying line 12 and the second conveying line 13;

[0053] Step S4: When the tray 4 is spaced between the first conveying line 12 and the second conveying line 13, the tray 4 and the potted plant on the tray 4 are completely supported by the weighing unit 3, at this time the weighing unit 3 can weigh the tray 4, and the weight of the potted plant is obtained after deducting the weight of the tray 4;

[0054] Step S5: After the weighing of the weighing unit 3 is completed, the first lifting unit 2 controls the weighing unit 3 to fall again until the tray 4 is supported on the first conveying line 12 and the second conveying line 13 again, and the weighing unit 3 and the tray 4 are separated;

[0055] Step S6: After the tray 4 is supported on the first conveying line 12 and the second conveying line 13 again, the first conveying line 12 and the second conveying line 13 are started again to make the tray 4 leave the avoiding port 14 and go to the watering area.

[0056] In the above working process, the avoiding port 14 and the weighing unit 3 are located in the weighing area, so the weighing process of the potted plant is still completed in the weighing area. After the weighing is completed, the potted plant can automatically go to the watering area through the first conveying line 12 and the second conveying line 13, and the transfer process from the weighing area to the watering area is completed, which greatly improves the transfer efficiency and reduces the labor cost.

[0057] Referring to Figure 5 In this embodiment, the first lifting unit 2 includes a second bracket 21, a transmission rack 22, a third bracket 23, a motor 24, a transmission gear 25, a guide rod 26, a guide pipe 27 and a lifting plate 28.

[0058] The second bracket 21 has two ear plates, and the second bracket 21 is fixed to the first bracket 11 through the two ear plates. The transmission rack 22 is fixed to the second bracket 21, and the transmission rack 22 is perpendicular to the horizontal plane. The motor 24 is installed on the third bracket 23, and the transmission gear 25 is installed on the output shaft of the motor 24. The motor 24 can control the transmission gear 25 to rotate, and the transmission gear 25 is engaged with the transmission rack 22, so that the transmission gear 25 also moves up and down on the transmission rack 22 during rotation. In other words, the third bracket 23 can move up and down on the second bracket 21 when the transmission gear 25 rotates.

[0059] The guide rod 26 is arranged in the middle of the guide pipe 27, the guide rod 26 is parallel to the transmission rack 22, one of the guide rod 26 and the guide pipe 27 is fixed to the second bracket 21, and the other is fixed to the third bracket 23.

[0060] In this embodiment, the upper end of the guide pipe 27 is fixed on the second support 21, the lifting plate 28 is arranged horizontally, the weighing unit 3 is located on the upper surface of the lifting plate 28, the upper end of the guide rod 26 is fixed on the lower surface of the lifting plate 28, and the lower end of the guide rod 26 is fixed on the third support 23. Thus, the weighing unit 3 and the lifting plate 28 are fixedly installed on the third support 23 through the guide rod 26, and the weighing unit 3 and the lifting plate 28 can move up and down with the third support 23. The guide rod 26 cooperates with the guide pipe 27 to limit the moving direction of the third support 23, so that the transmission gear 25 and the transmission rack 22 can always be in meshing state during the movement of the third support 23.

[0061] During the process of contacting the tray 4 and weighing the potted plants on the tray 4, the weighing unit 3 can maintain the stability of the height of the weighing unit 3 by using the self-locking function of the motor 24, which can avoid the contact between the tray 4 and the first conveying line 12 and the second conveying line 13, and reduce the shaking of the tray 4 on the weighing unit 3. Therefore, the self-locking function of the motor 24 can effectively improve the accuracy of the weighing data.

[0062] Preferably, the first lifting unit 2 further comprises a sliding block and a sliding rail 29, the sliding block is slidingly arranged on the sliding rail 29, one of the sliding block and the sliding rail 29 is fixed on the lifting plate 28, and the other is fixed on the second support 21, and the sliding block and the sliding rail 29 cooperate to stabilize the lifting plate 28 during the lifting process.

[0063] In order to limit the lifting distance of the weighing unit 3, the first lifting unit 2 further comprises a limiting block 210, a photoelectric sensor 211 and a shielding block 212.

[0064] The limiting block 210 can be fixed on one of the second support 21 and the third support 23, and the other of the second support 21 and the third support 23 collides with the limiting block 210 during the lifting process of the third support 23, thereby limiting the third support 23 in the axial direction of the guide rod 26.

[0065] Preferably, the number of limiting blocks 210 is two, one of which is used for limiting during the lifting process of the third support 23, and the other is used for limiting during the lowering process of the third support 23.

[0066] The photoelectric sensor 211 and the shielding block 212 are usually arranged in pairs. In this embodiment, there are two pairs of photoelectric sensors 211 and shielding blocks 212, one pair of photoelectric sensors 211 and shielding blocks 212 is used for limiting during the lifting process of the third support 23, and the other pair of photoelectric sensors 211 and shielding blocks 212 is used for limiting during the lowering process of the third support 23.

[0067] Specifically, one of the photoelectric sensor 211 and the blocking block 212 is installed on the second support 21, and the other is installed on the third support 23, and the photoelectric sensor 211 is electrically connected to the motor 24. When the weighing unit 3 is lifted to the set position, the blocking block 212 can just trigger the corresponding photoelectric sensor 211, so that the photoelectric sensor 211 sends a signal to the motor 24, and the motor 24 stops working after receiving the signal, and the weighing unit 3 stays at the set position, so that the weighing unit 3 and the third support 23 also obtain the limit in the axial direction of the guide rod 26.

[0068] Referring to Figure 4 and Figure 5 , the weighing unit 3 comprises a first support plate 31 and a weighing sensor 32, the first support plate 31 is horizontally arranged, the lower surface of the first support plate 31 is supported on the weighing sensor 32, and the weighing sensor 32 is supported on the upper surface of the lifting plate 28. When the tray 4 is lifted from the first conveying line 12 and the second conveying line 13, the tray 4 is supported on the upper surface of the first support plate 31.

[0069] Preferably, the weighing unit 3 further comprises a plurality of positioning pins 33, which can be the same or different in shape, and the positioning pins 33 are arranged on the first support plate 31 and at least partially above the first support plate 31.

[0070] Referring to Figure 6 , the bottom of the tray 4 is provided with a plurality of positioning holes 41 corresponding to the positioning pins 33. When the first support plate 31 supports the tray 4, the positioning pins 33 are inserted into the corresponding positioning holes 41, so that the tray 4 is positioned in the horizontal direction, the stability of the tray 4 on the first support plate 31 is improved, and the accuracy of the weighing result is improved.

[0071] Embodiment 2:

[0072] Referring to Figure 7 , the present embodiment provides a plant state detection device, which comprises a tray 4, a watering device 5 and the weighing device provided in embodiment 1.

[0073] Among them, the watering device 5 is located in the watering area, the first support 11 is connected with the watering device 5, and after the tray 4 ends weighing at the avoidance port 14, the first conveying line 12 and the second conveying line 13 can send the tray 4 from the avoidance port 14 to the watering device 5 for watering.

[0074] Specifically referring to Figure 8 and Figure 9 , the watering device 5 comprises a fourth support 51 and a universal curved pipe 52, and the universal curved pipe 52 is installed on the fourth support 51. When the tray 4 is transferred to the fourth support 51, the universal curved pipe 52 can be used to water the potted plants on the tray 4.

[0075] Referring again to Figure 9 , the plant state detection device of the embodiment further comprises a first transfer line 6 and a second transfer line 7, the first transfer line 6 and the second transfer line 7 are arranged side by side between the watering device 5 and the weighing device, so that the weighing device, the first transfer line 6, the watering device 5 and the second transfer line 7 are arranged in a mouth shape.

[0076] After the tray 4 and the potted plant are weighed at the avoidance port 14, the tray 4 and the potted plant are first sent to the first transfer line 6, and then are transferred from the first transfer line 6 to the watering device 5 for watering. After the watering is completed, the tray 4 and the potted plant are transferred to the second transfer line 7 and are returned to the vicinity of the weighing device by using the second transfer line 7.

[0077] The watering device 5, the first transfer line 6 and the second transfer line 7 all have a conveyor belt or a conveyor chain for transporting the tray 4.

[0078] Preferably, a first camera is arranged at the first transfer line 6, and a second camera is arranged at the second transfer line 7. The first camera can take a photo of the plant in the potted plant before watering, and the second camera can take a photo of the plant in the potted plant after watering. In this way, the state of the plant before and after watering can be compared, and the state management of the plant is facilitated.

[0079] In order to transfer the tray 4 from the first support 11 to the first transfer line 6, the end of the first transfer line 6 at the weighing device is provided with a carrying device 8. Referring to Figure 10 , the carrying device 8 comprises a horizontal moving unit 81, a second jacking unit 82 and a fifth support 83. The horizontal moving unit 81 is installed on the fifth support 83, and the second jacking unit 82 is installed on the output end of the horizontal moving unit 81. The second jacking unit 82 first jacks up the tray 4 from the first support 11, and then controls the horizontal movement of the second jacking unit 82 by the horizontal moving unit 81 until the tray 4 is transferred above the first transfer line 6. Then the second jacking unit 82 starts to descend so that the tray 4 is supported on the first transfer line 6, and the tray 4 is sent to the watering device 5 by the first transfer line 6.

[0080] The technical features of the above-described embodiments can be combined in any manner. In order to make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, however, as long as the combinations of the technical features do not exist contradictory, they should be considered as the scope of the present disclosure.

[0081] The above-described embodiments only express several implementation manners of the utility model, the description is more specific and detailed, but can not therefore be understood as the limitation of the utility model patent range. It should be pointed out that for ordinary skilled person in the art, without departing from the utility model concept, several modifications and improvements can be made, which belong to the protection range of the utility model. Therefore, the protection range of the utility model patent should be subject to the appended claims.

Claims

1. A weighing device, characterized in that, It includes a first conveying unit (1), a first lifting unit (2), and a weighing unit (3); The first conveying unit (1) includes a first support (11), a first conveying line (12) and a second conveying line (13). The first conveying line (12) and the second conveying line (13) are arranged side by side and spaced apart on the first support (11). The first support (11), the first conveying line (12) and the second conveying line (13) form a clearance opening (14). The first conveying line (12) and the second conveying line (13) are used to support the pallet (4) and send the pallet (4) to or away from the clearance opening (14). The first lifting unit (2) is mounted on the first bracket (11) and located at the clearance opening (14) to allow the first lifting unit (2) to lift the pallet (4) when the pallet (4) is located at the clearance opening (14); The weighing unit (3) is mounted on the first lifting unit (2) to allow the weighing unit (3) to weigh the pallet (4) when the first lifting unit (2) lifts the pallet (4).

2. The weighing device according to claim 1, characterized in that, The first lifting unit (2) includes a second bracket (21), a transmission rack (22), a third bracket (23), a motor (24), a transmission gear (25), a guide rod (26), a guide tube (27), a lifting plate (28), a slider, and a slide rail (29); The second bracket (21) is fixed on the first bracket (11), the transmission rack (22) is fixed on the second bracket (21), the motor (24) is mounted on the third bracket (23), the transmission gear (25) is mounted on the output shaft of the motor (24), and the transmission gear (25) meshes with the transmission rack (22); The guide rod (26) passes through the middle of the guide tube (27). One of the guide rod (26) and the guide tube (27) is fixed on the second bracket (21), and the other is fixed on the third bracket (23). The weighing unit (3) is located on the upper surface of the lifting plate (28), the lifting plate (28) is mounted on the third bracket (23), the slider is slidably mounted on the slide rail (29), one of the slider and the slide rail (29) is fixed on the lifting plate (28), and the other is fixed on the second bracket (21).

3. The weighing device according to claim 2, characterized in that, The first lifting unit (2) further includes a limiting block (210), which is installed on the second bracket (21) or the third bracket (23). The limiting block (210) is used to limit the third bracket (23) along the axial direction of the guide rod (26).

4. The weighing device according to claim 2, characterized in that, The first lifting unit (2) further includes a photoelectric sensor (211) and a blocking block (212). One of the photoelectric sensor (211) and the blocking block (212) is mounted on the second bracket (21), and the other is mounted on the third bracket (23). The photoelectric sensor (211) is electrically connected to the motor (24) so ​​that the photoelectric sensor (211) and the blocking block (212) cooperate to limit the third bracket (23) axially on the guide rod (26).

5. The weighing device according to claim 2, characterized in that, The weighing unit (3) includes a first support plate (31), a weighing sensor (32) and a positioning pin (33). The weighing sensor (32) is supported on the upper surface of the lifting plate (28), and the lower surface of the first support plate (31) is supported on the weighing sensor (32). The upper surface of the first support plate (31) is used to support the tray (4). The positioning pin (33) is mounted on the first support plate (31), and the positioning pin (33) is at least partially located above the first support plate (31) to allow the tray (4) to be positioned in the horizontal direction when the tray (4) is supported on the upper surface of the first support plate (31).

6. A plant condition detection device, characterized in that, Includes a tray (4), a watering device (5), and a weighing device as claimed in any one of claims 1-5, wherein the first support (11) is connected to the watering device (5) to allow the first conveyor line (12) and the second conveyor line (13) to deliver the tray (4) from the clearance opening (14) to the watering device (5).

7. The plant status detection device according to claim 6, characterized in that, The watering device (5) includes a fourth bracket (51) and a universal curved pipe (52), the universal curved pipe (52) is installed on the fourth bracket (51), and the universal curved pipe (52) is used to water the plants on the tray (4).

8. The plant status detection device according to claim 6, characterized in that, The plant condition detection device also includes a first transfer line (6) and a second transfer line (7), which are arranged side by side between the watering device (5) and the weighing device.

9. The plant status detection device according to claim 8, characterized in that, A first camera is provided at the first transfer line (6), and a second camera is provided at the second transfer line (7). The first camera and the second camera are used to photograph the plants on the tray (4).

10. The plant status detection device according to claim 8, characterized in that, The first transfer line (6) is provided with a handling device (8) at the end of the weighing device, the handling device (8) being used to transfer the pallet (4) from the weighing device to the first transfer line (6); The conveying device (8) includes a horizontal moving unit (81), a second lifting unit (82) and a fifth support (83). The horizontal moving unit (81) is mounted on the fifth support (83), and the second lifting unit (82) is mounted on the output end of the horizontal moving unit (81).

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