Liquid fertilizer production discharging and weighing device

By designing a liquid fertilizer weighing device that includes a stirring base and a feeding cylinder, and utilizing a weighing spring and trigger rod mechanism, dynamic weighing and automatic feeding of liquid fertilizer raw materials are realized. This solves the problems of low efficiency and low accuracy in the existing technology, improves weighing accuracy and efficiency, and reduces costs.

CN224455957UActive Publication Date: 2026-07-03HEBI BOLONG ANIMAL HUSBANDRY MACHINERY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBI BOLONG ANIMAL HUSBANDRY MACHINERY CO LTD
Filing Date
2025-06-30
Publication Date
2026-07-03

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Abstract

This utility model relates to the field of liquid fertilizer production technology, specifically to a feeding and weighing device for liquid fertilizer production. It includes a stirring base and a feeding cylinder, with the feeding cylinder positioned above the stirring base. Liquid fertilizer raw materials are added to the stirring base through the feeding cylinder. A weighing mechanism, including a support frame, is installed inside the feeding cylinder. This design utilizes a control column, allowing the operator to adjust the height of the trigger rod according to the scale on the control column. The distance the support frame moves downwards under the weight of the liquid fertilizer raw materials corresponds to the amount of raw materials. The more raw materials are added, the lower the trigger rod should be, and vice versa. Furthermore, this weighing method is simple to operate, low in cost, and has strong anti-interference capabilities, improving the applicability of the device.
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Description

Technical Field

[0001] This utility model relates to the field of liquid fertilizer production technology, specifically to a feeding and weighing device for liquid fertilizer production. Background Technology

[0002] In agricultural production, the accurate weighing and proportioning of liquid fertilizers is crucial for ensuring fertilization effectiveness. Traditional methods of weighing liquid fertilizers mainly rely on mechanical weighing devices or electronic weighing systems, but these methods have certain limitations in practical applications.

[0003] Currently, most common liquid fertilizer weighing devices use static weighing, which involves weighing within a fixed container. However, this method is difficult to adapt to the needs of continuous production or dynamic feeding, easily leading to low weighing efficiency. In addition, some electronic weighing devices are susceptible to interference from environmental factors (such as vibration and temperature changes), affecting weighing accuracy. Especially in large-scale agricultural production, accumulated errors may lead to fertilizer imbalance, thereby affecting crop growth.

[0004] Furthermore, some existing weighing devices have complex structures, high maintenance costs, and poor adaptability to the corrosiveness, viscosity, and other physical properties of liquid fertilizers. Long-term use may lead to sensor damage or measurement deviations. Therefore, there is an urgent need for a liquid fertilizer raw material weighing device with a simple structure, strong anti-interference ability, and suitable for dynamic weighing, in order to improve weighing accuracy and operational efficiency and meet the precision fertilization needs of modern agricultural production. Utility Model Content

[0005] In view of the above situation and to overcome the defects of the prior art, this utility model provides a feeding and weighing device for liquid fertilizer production, so as to solve the problems mentioned in the background art.

[0006] A feeding and weighing device for liquid fertilizer production includes a mixing base and a feeding cylinder, wherein the feeding cylinder is disposed above the mixing base;

[0007] Liquid fertilizer raw materials are added to the mixing base through a feeding cylinder. The feeding cylinder is equipped with a weighing mechanism, which includes a support frame. A weighing spring is installed between the support frame and the inner wall of the feeding cylinder. A feeding port is located at the bottom of the feeding cylinder. Initially, the feeding port is blocked by two baffle plates. A trigger rod is located below the baffle plates. The height of the trigger rod is adjusted to ensure that the feeding port is opened only when the raw materials reach a set weight.

[0008] Preferably, the stirring base is provided with a plurality of support legs below it.

[0009] Preferably, the feed inlet of the feed cylinder is provided with a control shaft, and a hinge is fixedly connected to the control shaft. The hinge can close the feed inlet of the feed cylinder when the liquid fertilizer raw material is added to a set weight.

[0010] Preferably, the trigger rod is slidably connected to the inner wall of the feeding cylinder in the vertical direction, and a control column is inserted into the inner wall of the feeding cylinder. The control column is provided with a weighing scale. The control column and the trigger rod are connected through a first transmission rod, and the height of the trigger rod is adjusted by the depth of the control column insertion.

[0011] Preferably, the weighing mechanism further includes an opening and closing rod disposed below the bearing frame, and the change in the height of the opening and closing rod can control the opening and closing of the discharge port;

[0012] The opening and closing rod is connected to the load-bearing frame by a telescopic rod, and the opening and closing rod is connected to the two baffles by a second transmission rod. The second transmission rod is rotatably connected to the baffles.

[0013] Preferably, the inner wall of the feeding cylinder is provided with multiple limiting blocks. In the initial state, the limiting blocks are in contact with the outer wall of the bearing frame. When the bearing frame moves downward under gravity, the limiting blocks prevent the bearing frame from moving upward.

[0014] The beneficial effects of this utility model are as follows:

[0015] This solution uses a control column, allowing operators to adjust the height of the trigger rod according to the scale on the control column. The distance the load-bearing frame moves downward under the gravity of the liquid fertilizer raw material corresponds to the amount of raw material. The more raw material is set, the lower the trigger rod will be, and vice versa. Furthermore, this weighing method is simple to operate, has low cost, strong anti-interference ability, and improves the applicability of the device. Attached Figure Description

[0016] Figure 1 This is a front-view three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a cross-sectional view of the present invention;

[0018] Figure 3 This is a schematic diagram showing the position of the baffle plate in this utility model.

[0019] In the picture:

[0020] 1. Mixing base; 2. Support legs; 3. Feeding cylinder; 4. Hinge; 5. Control shaft; 6. Bearing frame; 7. Limiting block; 8. Trigger rod; 9. Control column; 10. First transmission rod; 11. Opening and closing rod; 12. Baffle plate; 13. Feeding port; 14. Second transmission rod; 15. Weighing spring. Detailed Implementation

[0021] The following will refer to the attached reference. Figures 1 to 3The various embodiments of this utility model will be described in detail below. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of this utility model and are not intended to limit the scope of protection of this utility model. Example

[0022] A feeding and weighing device for liquid fertilizer production includes a mixing base 1 and a feeding cylinder 3. The mixing base 1 is provided with multiple support legs 2 below it, and the feeding cylinder 3 is located above the mixing base 1. The number of feeding cylinders 3 is multiple, which can simultaneously add different raw materials into the mixing base 1, thereby improving feeding efficiency.

[0023] The feeding cylinder 3 has a control shaft 5 at its inlet, and a hinge 4 is fixedly connected to the control shaft 5. The hinge 4 can close the inlet of the feeding cylinder 3 when the liquid fertilizer raw material is added to a set weight. The hinge 4 is used to close or open the inlet of the feeding cylinder 3.

[0024] Liquid fertilizer raw materials are added into the mixing base 1 through the feeding cylinder 3. The feeding cylinder 3 is equipped with a weighing mechanism, which includes a support frame 6. A weighing spring 15 is provided between the support frame 6 and the inner wall of the feeding cylinder 3. A feeding port 13 is provided at the bottom of the feeding cylinder 3. In the initial state, the feeding port 13 is blocked by two baffle plates 12. A trigger rod 8 is provided below the baffle plates 12. The height of the trigger rod 8 is adjusted to ensure that the feeding port 13 will be opened when the raw materials are added to the set weight.

[0025] The weighing mechanism also includes an opening and closing rod 11 disposed below the bearing frame 6. The change in the height of the opening and closing rod 11 can control the opening and closing of the discharge port 13.

[0026] See attached document Figure 3 The initial state of the support frame 6 is supported by the weighing spring 15. When raw materials are added into the support frame 6, the more raw materials are added, the greater the overall weight of the support frame 6 will be, which will cause the support frame 6 to move downward. The amount of raw materials added into the support frame 6 is controlled according to the downward distance.

[0027] The opening and closing rod 11 is connected to the bearing frame 6 by a telescopic rod, and the opening and closing rod 11 is connected to the two baffle plates 12 by a second transmission rod 14. The second transmission rod 14 is rotatably connected to the baffle plates 12.

[0028] When the opening and closing rod 11 moves toward the bearing frame 6, it causes the two baffle plates 12 to move relative to each other, thereby opening the discharge port 13, so that the raw material in the bearing frame 6 falls into the stirring base 1, which is used to stir the raw material.

[0029] The inner wall of the feeding cylinder 3 is slidably connected to a trigger rod 8 in the vertical direction. A control column 9 is inserted into the inner wall of the feeding cylinder 3. The control column 9 is provided with a weighing scale. The control column 9 and the trigger rod 8 are connected by a first transmission rod 10. The height of the trigger rod 8 is adjusted by the depth of the control column 9.

[0030] In the above, the amount of raw material added is related to the distance the support frame 6 moves down, so that the insertion depth of the control column 9 can be adjusted. When the control column 9 is inserted and moved, the height of the trigger rod 8 is adjusted by the first transmission rod 10. Then, when the support frame 6 moves to the corresponding position, the trigger rod 8 will open the baffle plate 12 through the opening and closing rod 11, so that the raw material in the support frame 6 falls into the stirring base 1.

[0031] Furthermore, the hinge 4 can be electrically controlled to close the feed port when the feed port 13 is opened, thus preventing further feeding. This method of electrical control is conventional and will not be described in detail.

[0032] The inner wall of the feeding cylinder 3 is provided with multiple limiting blocks 7. In the initial state, the limiting blocks 7 are in contact with the outer wall of the bearing frame 6. When the bearing frame 6 moves downward under gravity, the limiting blocks 7 prevent the bearing frame 6 from moving upward.

[0033] The setting of the limiting block 7 is a preferred solution for this method. This can avoid the situation where, when the material falls, a portion of the material falls, which reduces the weight of the bearing frame 6, causing the bearing frame 6 to move upward again, and the material that does not fall in time cannot enter the mixing base 1.

[0034] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A material feeding and weighing device for liquid fertilizer production, characterized in that, It includes a stirring base (1) and a feeding cylinder (3), wherein the feeding cylinder (3) is disposed above the stirring base (1); Liquid fertilizer raw materials are added into the mixing base (1) through the feeding cylinder (3). The feeding cylinder (3) is equipped with a weighing mechanism, which includes a support frame (6). A weighing spring (15) is provided between the support frame (6) and the inner wall of the feeding cylinder (3). A feeding port (13) is provided below the feeding cylinder (3). In the initial state, the feeding port (13) is blocked by two baffle plates (12). A trigger rod (8) is provided below the baffle plates (12). The height of the trigger rod (8) is adjusted to ensure that the feeding port (13) will be opened when the raw materials are added to the set weight.

2. The discharging and weighing device for liquid fertilizer production according to claim 1, characterized in that, The stirring base (1) is provided with multiple support legs (2) for support.

3. The discharging and weighing device for liquid fertilizer production according to claim 1, characterized in that, The feed inlet of the feed cylinder (3) is provided with a control shaft (5), and a hinge (4) is fixedly connected to the control shaft (5). The hinge (4) can close the feed inlet of the feed cylinder (3) when the liquid fertilizer raw material is added to the set weight.

4. The discharging and weighing device for liquid fertilizer production according to claim 1, characterized in that, The trigger rod (8) is slidably connected to the inner wall of the feeding cylinder (3) in the vertical direction. A control column (9) is inserted into the inner wall of the feeding cylinder (3). The control column (9) is provided with a weighing scale. The control column (9) and the trigger rod (8) are connected through a first transmission rod (10). The height of the trigger rod (8) is adjusted by the depth of the control column (9) insertion.

5. The discharging and weighing device for liquid fertilizer production according to claim 1, characterized in that, The weighing mechanism also includes an opening and closing rod (11) located below the bearing frame (6), and the change in the height of the opening and closing rod (11) can control the opening and closing of the discharge port (13); The opening and closing rod (11) is connected to the bearing frame (6) by a telescopic rod, and the opening and closing rod (11) is connected to the two baffles (12) by a second transmission rod (14). The second transmission rod (14) is rotatably connected to the baffles (12).

6. The discharging and weighing device for liquid fertilizer production according to claim 1, characterized in that, The inner wall of the feeding cylinder (3) is provided with multiple limiting blocks (7). In the initial state, the limiting blocks (7) are in contact with the outer wall of the bearing frame (6). When the bearing frame (6) moves downward under gravity, the limiting blocks (7) prevent the bearing frame (6) from moving upward.