Grain detector

Abstract

The utility model discloses a grain detector which comprises a grain moisture detector body, a rectangular fixing plate is arranged on one side of the grain moisture detector body, two side supporting plates are arranged on the upper surface of the rectangular fixing plate, fixed mounting seats are arranged at the top ends of the side supporting plates, and push-pull rods are movably arranged on the side walls of the side supporting plates in a penetrating mode. A movable mounting seat and a fixed mounting seat are arranged at one end of the push-pull rod, cleaning brushes are movably arranged in the movable mounting seat, limiting grooves are formed in the cleaning brushes, fixed seats are fixedly arranged at the top ends of the fixed mounting seat and the movable mounting seat, and a plurality of connecting rods are movably arranged on the surfaces of the fixed seats in a penetrating manner; and the bottom ends of the multiple connecting rods are jointly connected with a limiting block connected with the limiting groove in a clamped mode, extrusion springs are connected to the positions, between the limiting block and the fixing base, of the outer sides of the connecting rods in a sleeving mode, through the arrangement of the structure, the sweeping brushes on the fixed mounting base and the movable mounting base can be rapidly disassembled and replaced, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of grain detection, in particular to a grain detector. Background Art

[0002] When storing grains, it is necessary to detect the moisture inside the grains. The detection principle of the moisture detector is as follows: The motor drives two rolling wheels to rotate. The grains are placed between the two rolling wheels and crushed by the rolling wheels. The moisture inside the grains is squeezed out. The circuit between the two rolling wheels is conducted under the action of moisture. Different moisture contents result in different resistance values. The moisture content inside the grains is judged in this way.

[0003] As disclosed in the utility model with the authorization announcement number CN220064021U, a multifunctional grain detector, the device includes two rolling wheels installed on the left and right sides of the front end of the grain moisture detector body. A rectangular fixing plate is installed on the lower side of the front end of the grain moisture detector body, and a grain collection groove is opened at the upper end of the rectangular fixing plate. Side support plates are installed on the left and right sides of the upper end of the rectangular fixing plate. Fixed cleaning brushes are installed at the upper ends of the opposite inner sides of the two side support plates, which solves the problems of general cleaning effect and inability to collect the cleaned grains. The device has a reasonable structure and good practicability. It can perform secondary cleaning on the surfaces of the two rolling wheels, and the cleaning effect is good. At the same time, it can also collect the cleaned grains, which is conducive to popularization and use.

[0004] When the device is in use, the fixed cleaning brush and the movable cleaning brush are used to clean the grains attached to the surfaces of the two rolling wheels. Whether it is the fixed cleaning brush or the movable cleaning brush, it can only clean the grains attached to the surfaces of the two rolling wheels by contacting the two rolling wheels. This results in the fixed cleaning brush and the movable cleaning brush being worn during long-term use. Therefore, it is necessary to regularly replace the fixed cleaning brush and the movable cleaning brush to ensure the cleaning effect of the grains attached to the surfaces of the two rolling wheels. However, both the fixed cleaning brush and the movable cleaning brush of this device are fixedly installed, which causes certain inconvenience when replacing the fixed cleaning brush and the movable cleaning brush. Content of the Utility Model

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a grain detector, which can solve the technical problem that during long-term use, the fixed cleaning brush and the movable cleaning brush will be worn, so it is necessary to regularly replace the fixed cleaning brush and the movable cleaning brush. However, both the fixed cleaning brush and the movable cleaning brush of this device are fixedly installed, which causes certain inconvenience when replacing the fixed cleaning brush and the movable cleaning brush.

[0006] To solve the above technical problems, the present utility model provides the following technical solutions: A grain detector, including the main body of the grain moisture detector, a rectangular fixing plate is provided on one side of the main body of the grain moisture detector, two side support plates are provided on the upper surface of the rectangular fixing plate, a fixed mounting seat is provided at the top of the side support plate, a push-pull rod is movably penetrated through the side wall of the side support plate, a movable mounting seat is provided at one end of the push-pull rod, a return spring is sleeved outside the push-pull rod and between the movable mounting seat and the side support plate, cleaning brushes are movably arranged in both the fixed mounting seat and the movable mounting seat, a limiting groove is opened on the cleaning brush, fixing seats are fixedly provided at the tops of both the fixed mounting seat and the movable mounting seat, a plurality of connecting rods are movably penetrated through the surface of the fixing seat, and a limiting block that is snap-fitted with the limiting groove is commonly connected to the bottoms of the plurality of connecting rods. A compression spring is sleeved and connected between the outer side of the connecting rod and between the limiting block and the fixing seat.

[0007] As a preferred technical solution of the present utility model, one end of the compression spring is fixedly connected to the fixing seat, and the other end of the compression spring is fixedly connected to the limiting block.

[0008] As a preferred technical solution of the present utility model, a pulling block is commonly connected to the tops of the plurality of connecting rods.

[0009] As a preferred technical solution of the present utility model, two ball bearing seats are provided on the side wall of the main body of the grain moisture detector, a metal transmission shaft is penetrated through the two ball bearing seats, a rolling wheel is provided at one end of the two metal transmission shafts, and the outer side walls of the two rolling wheels are in contact and abutted against each other.

[0010] As a preferred technical solution of the present utility model, both of the two rolling wheels are arranged directly above the rectangular fixing plate.

[0011] As a preferred technical solution of the present utility model, a grain collection groove for collecting grains is opened on the upper surface of the rectangular fixing plate and between the two side support plates.

[0012] Compared with the prior art, the beneficial effects that the present utility model can achieve are:

[0013] Through the cooperative setting of the connecting rod and the fixing seat, the limiting connection of the limiting block is realized. Through the cooperative setting of the connecting rod and the compression spring, the limiting block is tightly snap-fitted with the limiting groove opened on the cleaning brush, so as to realize the limiting connection of the cleaning brushes on the fixed mounting seat and the movable mounting seat. The setting of this structure can quickly realize the disassembly and replacement of the cleaning brushes on the fixed mounting seat and the movable mounting seat, improving the practicability of the device. Description of the Drawings

[0014] Figure 1 Schematic diagram of the three-dimensional structure of the first perspective of the present utility model;

[0015] Figure 2 Schematic diagram of the three-dimensional structure of the partially disassembled part of the present utility model;

[0016] Figure 3 Schematic diagram of the three-dimensional structure of the partial structure of the present utility model;

[0017] Figure 4 Schematic diagram of the three-dimensional structure of the second perspective of the present utility model;

[0018] Wherein: 1. Main body of the grain moisture detector; 2. Ball bearing seat; 3. Metal transmission shaft; 4. Rolling wheel; 5. Rectangular fixing plate; 6. Grain collection trough; 7. Side support plate; 8. Fixed mounting seat; 9. Movable mounting seat; 10. Push-pull rod; 11. Return spring; 12. Cleaning brush; 13. Limit groove; 14. Limit block; 15. Connecting rod; 16. Pulling block; 17. Fixed seat; 18. Extrusion spring. Specific embodiments

[0019] In order to make the technical means, creative features, achieved purposes and effects realized by the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments. However, the following embodiments are only the preferred embodiments of the present utility model and not all of them. Based on the embodiments in the implementation manner, other embodiments obtained by those skilled in the art without making creative efforts all fall within the protection scope of the present utility model.

[0020] Embodiment

[0021] Please refer to Figures 1-4 As shown, the present utility model provides a grain detector. A rectangular fixing plate 5 is provided on one side of the main body 1 of the grain moisture detector. Then, two side support plates 7 are provided on the upper surface of the rectangular fixing plate 5. Then, a fixed mounting seat 8 is provided at the top of the side support plates 7. And a push-pull rod 10 is movably inserted through the side wall of the side support plates 7. And a movable mounting seat 9 is provided at one end of the push-pull rod 10. And a return spring 11 is sleeved outside the push-pull rod 10 and between the movable mounting seat 9 and the side support plates 7. Then, cleaning brushes 12 are movably arranged in both the fixed mounting seat 8 and the movable mounting seat 9. Then, a limit groove 13 is opened on the cleaning brush 12. At the same time, fixed seats 17 are fixedly provided at the tops of both the fixed mounting seat 8 and the movable mounting seat 9. A plurality of connecting rods 15 are movably inserted through the surface of the fixed seat 17. And a limit block 14 that is snap-connected to the limit groove 13 is commonly connected to the bottom ends of the plurality of connecting rods 15. Then, an extrusion spring 18 is sleeved and connected outside the connecting rod 15 and between the limit block 14 and the fixed seat 17. And the two ends of the extrusion spring 18 are fixedly connected to the limit block 14 and the fixed seat 17;

[0022] When disassembling and replacing the cleaning brush 12 on the fixed mounting base 8 and the movable mounting base 9, first pull the connecting rod 15 and the limiting block 14 provided at the bottom end of the connecting rod 15 through the pulling block 16. Then, release the engagement between the limiting block 14 and the limiting groove 13 opened on the cleaning brush 12. Then, remove the cleaning brush 12 from the fixed mounting base 8 and the movable mounting base 9, replace it with a new cleaning brush 12, and then release the pulling block 16. Under the elastic force of the compression spring 18, the limiting block 14 is driven to approach the limiting groove 13 opened on the cleaning brush 12 and engage with the limiting groove 13, so as to realize the limiting connection of the cleaning brush 12 on the fixed mounting base 8 and the movable mounting base 9;

[0023] As a further implementation manner of this embodiment, as Figures 1-4 shown, a pulling block 16 is connected to the tops of several connecting rods 15 at the same time. Through the setting of the pulling block 16, the connecting rod 15 and the limiting block 14 provided at one end of the connecting rod 15 can be pulled. At the same time, two ball bearing seats 2 are provided on the side wall of the grain moisture detector body 1. Then, a metal transmission shaft 3 is penetrated through the two ball bearing seats 2. Then, a rolling wheel 4 is provided at one end of the two metal transmission shafts 3, and the outer side walls of the two rolling wheels 4 are in contact and abutted. When detecting grains, the two rolling wheels 4 are driven to rotate by a motor, the grains are placed between the two rolling wheels 4, and the grains are crushed by the rolling wheels 4, and the moisture inside the grains is squeezed out. The circuit between the two rolling wheels 4 is conducted under the action of moisture, and the resistance is different due to different moisture contents. Therefore, the moisture content inside the grains is judged in this way. And a grain collecting groove 6 is opened on the upper surface of the rectangular fixing plate 5 and between the two side plates 7. Through the setting of the grain collecting groove 6, the grains can be collected. Finally, both rolling wheels 4 are arranged directly above the rectangular fixing plate 5;

[0024] Specific working principle:

[0025] During use, the moisture in the grains is tested by two rotating rolling wheels 4, and then the grains adhering to the surfaces of the two rolling wheels 4 are cleaned by the cleaning brush 12. The cleaned grains fall into the grain collection groove 6 opened on the upper surface of the rectangular fixing plate 5 for collection. During long-term use, the cleaning brush 12 is worn out. When it is necessary to disassemble and replace the cleaning brush 12 on the fixed mounting seat 8 and the movable mounting seat 9, first, the connecting rod 15 and the limiting block 14 arranged at the bottom end of the connecting rod 15 are pulled by the pulling block 16. Then, the engagement between the limiting block 14 and the limiting groove 13 opened on the cleaning brush 12 is released. Then, the cleaning brush 12 is removed from the fixed mounting seat 8 and the movable mounting seat 9, and a new cleaning brush 12 is replaced. Then, the pulling block 16 is released. Under the elastic force of the compression spring 18, the limiting block 14 is driven to approach the limiting groove 13 opened on the cleaning brush 12 and is engaged with the limiting groove 13, so as to realize the limiting connection of the cleaning brush 12 on the fixed mounting seat 8 and the movable mounting seat 9. The setting of this structure can quickly disassemble and replace the cleaning brush 12 on the fixed mounting seat 8 and the movable mounting seat 9, improving the practicability of the device.

[0026] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A grain detector, comprising a grain moisture detector body (1), characterized in that: A rectangular fixed plate (5) is arranged on one side of the grain moisture detector body (1), two side support plates (7) are arranged on the upper surface of the rectangular fixed plate (5), a fixed mounting seat (8) is arranged on the top of the side support plate (7), a push-pull rod (10) is movably passed through the side wall of the side support plate (7), a movable mounting seat (9) is arranged at one end of the push-pull rod (10), a return spring (11) is sleeved on the outer side of the push-pull rod (10) and located between the movable mounting seat (9) and the side support plate (7), and the fixed mounting seat (8) and the movable mounting seat (9) are arranged on the outer side of the push-pull rod (10). (9) are both movably provided with a cleaning brush (12), a limiting groove (13) is provided on the cleaning brush (12), a fixing seat (17) is fixedly provided on the top of the fixed mounting seat (8) and the movable mounting seat (9), a plurality of connecting rods (15) are movably penetrated on the surface of the fixing seat (17), the bottom ends of the plurality of connecting rods (15) are commonly connected with a limiting block (14) which is snap-fitted and connected with the limiting groove (13), and a compression spring (18) is sleeved and connected on the outside of the connecting rod (15) and between the limiting block (14) and the fixing seat (17).

2. A grain detector according to claim 1, characterized in that: One end of the extrusion spring (18) is fixedly connected to the fixing seat (17), and the other end of the extrusion spring (18) is fixedly connected to the limiting block (14).

3. A grain detector according to claim 1, characterized in that: The top ends of a plurality of the connecting rods (15) are commonly connected to a pulling block (16).

4. A grain detector according to claim 1, characterized in that: The grain moisture detector body (1) is provided with two ball bearing seats (2) on the side wall, the two ball bearing seats (2) are provided with metal transmission shafts (3) running through them, one end of the two metal transmission shafts (3) is provided with a rolling wheel (4), and the outer side walls of the two rolling wheels (4) are arranged in contact with each other.

5. A grain detector according to claim 4, characterized in that: The two rolling wheels (4) are both provided with a rectangular fixing plate (5) directly above them.

6. A grain detector according to claim 1, characterized in that: A grain collecting trough (6) for collecting grains is provided on the upper surface of the rectangular fixing plate (5) and between the two side support plates (7).

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