Seed quality detection device

Abstract

The utility model discloses a seed quality detection device which comprises a box body, a box door, an exhaust pipe, a bearing plate, a positioning plate and a lifting plate, the bearing plate is provided with a driving rotating seat driven by a motor, the positioning plate is provided with a sample tank insertion hole corresponding to the driving rotating seat, a sample tank is arranged in the sample tank insertion hole, and the lifting plate is provided with a driven rotating seat corresponding to the sample tank; the sample tank comprises a tank body and a cover, insertion pipes are correspondingly arranged on the cover and the tank body, hot air pipes capable of entering the insertion pipes are respectively arranged on the bearing plate and the lifting plate, and turbulent flow rods are arranged on the inner sides of outlets of the hot air pipes; the sample tank rotates and disturbs dried seeds in the drying process, so that all parts of a seed pile can be in contact with hot air, in addition, airflow sent out from the upper side and the lower side of the sample tank collides to form turbulent airflow, compared with a stable laminar flow state, the heat exchange efficiency of the turbulent airflow and the seeds is higher, the seeds are more favorably dried, and the drying efficiency is improved. And the whole-process drying time of the seeds can be obviously shortened.

Description

Technical Field

[0001] The utility model relates to the field of agricultural testing equipment, in particular to a seed quality testing device. Background Art

[0002] The "Inspection Procedures for Crop Seeds" stipulates that the four quality indicators of seed purity, clarity, germination rate and moisture are mandatory inspection items for seed inspection. If any of the above indicators does not meet the national standards, the seeds will be judged as unqualified seeds. Currently, the thermal gravimetric method is mostly used to measure the moisture content in seeds. The most common method is the drying test to obtain the weight difference before and after, but the existing quality inspection equipment generally takes about 30 minutes to dry, and the drying efficiency is low, which is not conducive to quickly obtaining test results, and there is room for improvement. Utility Model Content

[0003] In view of the problems existing in the background technology, the purpose of the present utility model is to provide a seed quality detection device, which effectively solves the problems existing in the background technology.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A seed quality detection device comprises a box body, a box door, an exhaust duct, and a supporting plate, a positioning plate and a lifting plate arranged in the box body; the supporting plate is provided with an active rotating seat driven by a motor, the positioning plate is provided with a sample jar socket corresponding to the active rotating seat, the sample jar socket is provided with a sample jar, and the lifting plate is provided with a passive rotating seat corresponding to the sample jar; the sample jar comprises a tank body with an upper opening and a detachable cover arranged at the opening of the tank body, a circumferential limiting mechanism is provided between the bottom surface of the tank body and the active rotating seat and between the tank body and the cover, an insert pipe is correspondingly provided on the cover and the tank body, a hot air pipe that can enter the insert pipe is respectively provided on the supporting plate and the lifting plate, a turbulence rod is provided on the inner side of the outlet of the hot air pipe, the cross section of the turbulence rod is an isosceles trapezoid and the longer side of the parallel sides of the isosceles trapezoid faces the incoming wind direction of the hot air pipe; an exhaust hole is also provided on the tank body.

[0006] Furthermore, the active rotating seat and the passive rotating seat are both mounted on a planar thrust bearing, and the planar thrust bearing is fixed on the supporting plate and the lifting plate.

[0007] Furthermore, a friction driving wheel driven by a motor is arranged on one side of the active rotating seat.

[0008] Furthermore, a plurality of levers are evenly distributed on the inner bottom surface of the tank body along the circumferential direction of the cross section.

[0009] Furthermore, the circumferential limiting mechanism includes a vertical insertion hole arranged on the tank body, and the cover and the active rotating seat are respectively provided with insertion rods that match the vertical insertion hole.

[0010] Furthermore, the hot air duct includes a rigid pipe section and a flexible pipe section, the rigid pipe section is fixed on the supporting plate and the lifting plate, and the flexible pipe section is connected to the rigid pipe section through a joint.

[0011] Furthermore, vertical screws are respectively screwed on the left and right sides of the lifting plate, a horizontal axis is arranged outside the box body, the upper end of the vertical screw extends outside the box body and a bevel gear set is arranged between the vertical screw and the horizontal axis, and a hand-tightened rotating wheel is also coaxially fixed on the horizontal axis.

[0012] Furthermore, a transparent observation window is provided on the box door.

[0013] The utility model has the following beneficial technical effects:

[0014] The sample can in the utility model rotates during the drying process, disturbing the dried seeds so that all parts of the seed pile can come into contact with the hot air. In addition, the airflows sent out from the upper and lower sides of the sample can collide to form a turbulent airflow. Compared with the stable laminar flow, the turbulent airflow has a higher heat exchange efficiency with the seeds, which is more conducive to seed drying and can significantly shorten the full-process drying time of the seeds, so that the tester can obtain the test results faster. The present application is novel in design, safe and convenient to use, and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0016] Figure 2 for Figure 1 A partial enlarged view of point A in the middle. DETAILED DESCRIPTION

[0017] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0018] In the description of the present utility model, unless otherwise specified, "multiple" means two or more than two; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0019] like Figure 1 and Figure 2 As shown, a seed quality detection device described in this embodiment includes a box body 1, a box door 2, an exhaust pipe 3, and a supporting plate 4, a positioning plate 5 and a lifting plate 6 arranged in the box body 1; the lower side of the box door 2 is hinged on the box body 1, and a transparent observation window 7 is also arranged on the box door 2;

[0020] The supporting plate 4 is fixed in the box body 1, and the supporting plate 4 is provided with an active rotating seat 8 driven by a motor. Specifically, a friction driving wheel 9 driven by a motor is provided on one side of the active rotating seat 8, and the active rotating seat 8 is driven to rotate by contacting the friction driving wheel 9. The positioning plate 5 is provided with a sample tank plug hole 10 corresponding to the active rotating seat 8, and a sample tank is arranged in the sample tank plug hole 10. The lifting plate 6 is provided with a passive rotating seat 11 corresponding to the sample tank. The active rotating seat 8 and the passive rotating seat 11 are both mounted on a plane thrust bearing, and the plane thrust bearing is fixed on the supporting plate 4 and the lifting plate 6;

[0021] The sample tank includes a tank body 12 with an opening on the upper side and a detachable cover 13 arranged at the opening of the tank body 12. A circumferential limiting mechanism is arranged between the bottom surface of the tank body 12 and the active rotating seat 8 and between the tank body 12 and the cover 13. The circumferential limiting mechanism includes a vertical plug hole 14 arranged on the tank body 12. The cover 13 and the active rotating seat 8 are respectively provided with a plug rod 15 that matches the vertical plug hole 14. The circumferential limiting mechanism enables the active rotating seat 8 to better drive the sample tank and the passive rotating seat 11 to rotate. The cover 13 and the tank body 12 are correspondingly provided with a plug tube 16. The support plate 4 and the lifting plate 6 are respectively provided with A hot air pipe 17 in the insert tube 16 can be entered, and a turbulence rod 18 is arranged on the inner side of the outlet of the hot air pipe 17. The cross section of the turbulence rod 18 is an isosceles trapezoid and the longer side of the parallel sides of the isosceles trapezoid faces the wind direction of the hot air pipe 17. After the airflow passes through the turbulence rod 18, many vortices are formed downstream. The vortex airflows sent out by the two hot air pipes 17 collide and break to form turbulent airflow and disperse into the tank body 12. The tank body 12 is also provided with an exhaust hole 19. A plurality of levers 20 are evenly distributed on the inner bottom surface of the tank body 12 along the circumference of the cross section. When the sample tank rotates, the lever 20 can move the seeds to make the seeds dry more quickly and fully.

[0022] The hot air duct 17 comprises a rigid pipe section and a flexible pipe section. The rigid pipe section is fixed on the supporting plate 4 and the lifting plate 6, and the flexible pipe section is connected to the rigid pipe section through a joint.

[0023] The action structure of the lifting plate 6 is as follows: vertical screws 21 are respectively screwed on the left and right sides of the lifting plate 6, a horizontal shaft 22 is arranged outside the box body 1, the upper end of the vertical screw 21 extends outside the box body 1 and a bevel gear set is arranged between the vertical screw 21 and the horizontal shaft 22, and a hand-tightened wheel 23 is also coaxially fixed on the horizontal shaft 22. When the horizontal shaft 22 is driven to rotate by the hand-tightened wheel 23, the two vertical screws 21 rotate, and the left and right sides of the lifting plate 6 are synchronously raised or lowered.

[0024] The working principle of this embodiment is:

[0025] The seeds to be dried are placed in the sample tank, and the sample tank is weighed together with the sample tank to obtain the initial weight. The box door 2 is opened, and the sample tank is placed in the sample tank jack 10. The bottom of the sample tank cooperates with the active rotating seat 8. The hand-twisted rotating wheel 23 is rotated to move the lifting plate 6 downward until the passive rotating seat 11 is in close contact with the sample tank cover 13. The box door 2 is closed, and the hot air is sent into the two hot air pipes 17 by the heater. The hot air enters the sample tank to dry the seeds. After the drying is completed, the machine is stopped, the lifting plate 6 is raised, the box door 2 is opened, the sample tank is taken out, and the sample tank is weighed together with the sample tank to obtain the mass after drying. The difference in mass before and after is considered to be the moisture content. Compared with the prior art, the sample tank in this embodiment rotates during the drying process to disturb the dried seeds, so that all parts of the seed pile can contact with the hot air. In addition, the airflows sent out from the upper and lower sides of the sample tank collide to form a turbulent airflow. Compared with the stable laminar flow state, the heat exchange efficiency between the turbulent airflow and the seeds is higher, which is more conducive to the drying of the seeds, and can significantly shorten the full process drying time of the seeds, so that the tester can get the test results faster.

[0026] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific uses.

Claims

1. A seed quality detection device, characterized in that: It includes a box body, a box door, an exhaust duct, and a supporting plate, a positioning plate and a lifting plate arranged in the box body; the supporting plate is provided with an active rotating seat driven by a motor, the positioning plate is provided with a sample jar socket corresponding to the active rotating seat, the sample jar socket is provided with a sample jar, and the lifting plate is provided with a passive rotating seat corresponding to the sample jar; the sample jar includes a tank body with an opening on the upper side and a detachable cover arranged at the opening of the tank body, a circumferential limiting mechanism is provided between the bottom surface of the tank body and the active rotating seat and between the tank body and the cover, the cover and the tank body are correspondingly provided with intubations, the supporting plate and the lifting plate are respectively provided with hot air ducts that can enter the intubations, a turbulence rod is provided on the inner side of the outlet of the hot air duct, the cross-section of the turbulence rod is an isosceles trapezoid and the longer side of the parallel sides of the isosceles trapezoid faces the incoming wind direction of the hot air duct; an exhaust hole is also provided on the tank body.

2. A seed quality detection device according to claim 1, characterized in that: The active rotating seat and the passive rotating seat are both mounted on a planar thrust bearing, and the planar thrust bearing is fixed on the supporting plate and the lifting plate.

3. A seed quality detection device according to claim 2, characterized in that: A friction driving wheel driven by a motor is arranged on one side of the active rotating seat.

4. A seed quality detection device according to claim 1, characterized in that: A plurality of levers are evenly distributed on the inner bottom surface of the tank body along the circumferential direction of the cross section.

5. A seed quality detection device according to claim 1, characterized in that: The circumferential limiting mechanism comprises a vertical insertion hole arranged on the tank body, and the cover and the active rotating seat are respectively provided with insertion rods matched with the vertical insertion hole.

6. A seed quality detection device according to claim 1, characterized in that: The hot air pipe comprises a rigid pipe section and a flexible pipe section. The rigid pipe section is fixed on the supporting plate and the lifting plate, and the flexible pipe section is connected to the rigid pipe section through a joint.

7. A seed quality detection device according to claim 1, characterized in that: The left and right sides of the lifting plate are respectively screwed with vertical screws, a horizontal shaft is arranged outside the box body, the upper end of the vertical screw extends outside the box body and a bevel gear set is arranged between the vertical screw and the horizontal shaft, and a hand-tightened rotating wheel is also coaxially fixed on the horizontal shaft.

8. A seed quality detection device according to claim 1, characterized in that: The box door is provided with a transparent observation window.

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