Seedling screening device for agricultural breeding

Abstract

The utility model discloses a seedling screening device for agricultural breeding, which belongs to the technical field of seedling screening for agricultural breeding and comprises a bottom frame, supporting legs are arranged at the top of the bottom frame, a supporting frame is arranged at the tops of the supporting legs, a rotating shaft is sleeved on the inner side of the supporting frame through a bearing, and a second threaded rod is welded at one end of the rotating shaft. A second threaded rod is welded to one end of the supporting frame, a connecting rod is welded to one end of the second threaded rod, a supporting assembly is arranged between the connecting rod and the supporting frame, and a first threaded rod is welded to one end of the connecting rod. The stability and safety of the connecting rod during rotating work are guaranteed, the multiple screening columns are arranged to be of the structure with the upper openings thick and the lower openings thin, when the seeds roll on the screening columns, the seeds of different sizes can fall down from the openings of different sizes, and the screening purpose is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of agricultural breeding seedling screening, more specifically, it relates to a seedling screening device for agricultural breeding. BACKGROUND

[0002] Agricultural breeding is a process of genetic improvement of crops using genetic principles, aiming to improve yield, quality and stress resistance, to cultivate new varieties of crops that adapt to different environments and needs, agricultural breeding has important significance in agricultural production, and is one of the key means to improve the yield and quality of agricultural products, the methods of agricultural breeding include selection, hybridization, mutagenesis, etc., through these methods to create and select germplasm resources with excellent traits, the ultimate goal of breeding is to improve the genetic characteristics of crops to cultivate high-yield, high-quality and stress-resistant varieties to meet human needs for food, fiber, energy and other aspects, agricultural breeding needs to screen seedlings.

[0003] However, the existing screening device mostly relies on filter screen screening, and seed accumulation may occur after long-term use, and the filter screen needs to be cleaned, and the existing screening device has a single seed screening type, which affects the actual screening effect. UTILITY MODEL CONTENT

[0004] (I) Technical problem to be solved

[0005] In view of the defects in the prior art, the purpose of the utility model is to provide a seedling screening device for agricultural breeding, which has the characteristics of reducing the accumulation, without frequent cleaning and corresponding adjustment according to the type of screened seeds.

[0006] (II) Technical scheme

[0007] In order to achieve the above-mentioned purpose, the utility model provides a seedling screening device for agricultural breeding, which comprises a chassis, the top of the chassis is provided with supporting legs, the top of the supporting leg is provided with a supporting frame, the inner side of the supporting frame is connected with a rotating shaft through a bearing sleeve, one end of the rotating shaft is welded with a second threaded rod, one end of the second threaded rod is welded with a connecting rod, the connecting rod and the supporting frame are provided with a supporting assembly, one end of the connecting rod is welded with a first threaded rod, the first threaded rod and the supporting frame are provided with a driving assembly, the surfaces of the first threaded rod and the second threaded rod are both connected with a threaded sleeve, one side of the threaded sleeve is provided with an adjusting frame, one side of the adjusting frame is provided with an extension frame and a protective plate, one side of the extension frame is provided with a sieve column, the number of the sieve columns is several, the sieve columns are all of the structure of coarse upper opening and fine lower opening, the top of the chassis is connected with a storage box, the number of the storage boxes is three.

[0008] When the seedling screening device for agricultural breeding is used, the support assembly is arranged to support the connecting rod, the stability and safety of the connecting rod during rotation are ensured, the plurality of screening columns are arranged as the structure with the upper opening being coarse and the lower opening being fine, when the seeds roll on the screening columns, the seeds of different sizes fall from the openings of different sizes, the screening purpose is achieved, the driving assembly is driven to rotate the first threaded rod, the connecting rod and the second threaded rod are driven to rotate, the two threaded sleeves and the adjusting frame are driven to move in opposite directions or in opposite directions, the adjusting frame is controlled to move in opposite directions or in opposite directions, the telescopic frame is controlled to be pressed or pulled apart, the distance between the screening columns is adjusted, the screening of different seeds is achieved, the use flexibility of the device is improved, and the three storage boxes are arranged to classify and collect the seeds of different sizes.

[0009] Further, the storage box is provided with a handle on one side, and the bottom frame is provided with four support seats on the bottom.

[0010] Further, the bottom frame is internally provided with a support sliding groove, and a support sliding block is slidably connected in the support sliding groove.

[0011] Further, the support assembly comprises a support plate arranged in the support frame, and the support plate is internally provided with a support sleeve, and the connecting rod is sleeved in the support sleeve.

[0012] Further, the support frame is internally provided with a limiting sliding groove, and a limiting sliding block is slidably connected in the limiting sliding groove.

[0013] Further, the driving assembly comprises a driving sleeve arranged in the support frame, and the driving sleeve is internally sleeved with a driving rod, one end of the driving rod is arranged at one end of the first threaded rod, and the other end of the driving rod is provided with a knob.

[0014] (Three) beneficial effects

[0015] In summary, the utility model has the following beneficial effects:

[0016] 1. The support assembly is arranged to support the connecting rod, the stability and safety of the connecting rod during rotation are ensured, the plurality of screening columns are arranged as the structure with the upper opening being coarse and the lower opening being fine, when the seeds roll on the screening columns, the seeds of different sizes fall from the openings of different sizes, the screening purpose is achieved;

[0017] 2, through the drive assembly work, can drive the first threaded rod rotation, thereby driving the connecting rod and the second threaded rod rotation, in turn drive two threaded sleeve and adjustment frame to the opposite direction or to the opposite direction, through the control adjustment frame to the opposite direction or opposite direction, can realize the stretching frame is extruded or open control, thereby realizing the distance between the sieve column is adjusted, realize the purpose of different kinds of seed screening, improve the use flexibility of the device, through the setting three storage box, can be different size seed classification collection. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the specific embodiment of the present application or the technical scheme in the prior art, the following will be a brief introduction to the drawings needed to be used in the specific embodiment or the prior art, obviously, the drawings in the following description is only one embodiment of the present application, for those skilled in the art, without creative labor, can also be obtained from these drawings other drawings.

[0019] Figure 1 It is the front view structure schematic diagram of the present application;

[0020] Figure 2 It is the top view sectional structure schematic diagram of the present application;

[0021] Figure 3 It is Figure 2 structure schematic diagram of A in the middle;

[0022] Figure 4 It is the structure schematic diagram of the drive assembly in the present application;

[0023] Figure 5 It is the structure schematic diagram of the support assembly in the present application.

[0024] The marks in the drawings are:

[0025] 1, support seat; 2, chassis; 3, support sliding groove; 4, support sliding block; 5, handle; 6, storage box; 7, protection plate; 8, sieve column; 9, support frame; 10, support leg; 11, drive assembly; 111, drive sleeve; 112, drive rod; 113, knob; 12, first threaded rod; 13, connecting rod; 14, support assembly; 141, support plate; 142, support sleeve; 15, telescopic frame; 16, second threaded rod; 17, shaft; 18, threaded sleeve; 19, limiting sliding groove; 20, limiting sliding block; 21, adjustment frame. DETAILED DESCRIPTION

[0026] In order to make the technical means, creation features, purposes and effects of the utility model easy to understand, the technical scheme in the specific embodiment of the utility model is described clearly and completely below to further illustrate the utility model. Obviously, the specific embodiment described is only a part of the embodiment of the utility model, rather than all.

[0027] Embodiment

[0028] The following will be combined with the drawings Figures 1-5 The utility model is further described in detail.

[0029] Please refer to Figures 1-5 The utility model provides a kind of technical scheme: a kind of seedling screening device for agricultural breeding, including chassis 2, the top of chassis 2 is provided with support leg 10, support leg 10 top is provided with support frame 9, support frame 9 inner side is connected with rotating shaft 17 by bearing sleeve, rotating shaft 17 one end is welded with second threaded rod 16, second threaded rod 16 one end is welded with connecting rod 13, connecting rod 13 and support frame 9 between being provided with support assembly 14, by setting support assembly 14, connecting rod 13 can be connected with support, guarantee the stability and security of connecting rod 13 when rotating work, connecting rod 13 one end is welded with first threaded rod 12, first threaded rod 12 and support frame 9 between being provided with drive assembly 11, first threaded rod 12 and second threaded rod 16 surface are all connected with threaded sleeve 18 by screw thread, one side of threaded sleeve 18 is provided with adjustment frame 21, one side of adjustment frame 21 is provided with telescopic stand 15 and guard plate 7, one side of telescopic stand 15 is provided with sieve column 8, the number of sieve column 8 is several, several sieve column 8 are all the structure of upper coarse lower fine, by setting several sieve column 8 as the structure of upper coarse lower fine, when seed rolls on sieve column 8, different size seeds will fall from different size opening position, realize the purpose of screening, by the work of drive assembly 11, can drive first threaded rod 12 rotation, to drive connecting rod 13 and second threaded rod 16 rotation, to drive two threaded sleeves 18 and adjustment frame 21 move in opposite direction simultaneously, or move in opposite direction, by controlling adjustment frame 21 move in opposite direction or opposite direction, can realize the extrusion or pull apart control of telescopic stand 15, to realize the distance between sieve column 8 adjustment, realize the purpose of screening different kinds of seeds, improve the use flexibility of device, the top of chassis 2 is slidably connected with storage box 6, the number of storage box 6 is three, by setting three storage boxes 6, different size seeds can be classified and collected.

[0030] Specifically, one side of storage box 6 is provided with handle 5, the bottom of chassis 2 is provided with support base 1, the number of support base 1 is four, support sliding groove 3 is set in the inside of chassis 2, support sliding groove 3 is slidably connected with support sliding block 4, support sliding block 4 is arranged at the bottom of storage box 6.

[0031] By adopting the technical scheme, the structure can be fixed and supported by arranging the four supporting seats 1, and the position of the storage box 6 can be adjusted and controlled by arranging the supporting sliding grooves 3 and the supporting sliding blocks 4.

[0032] Specifically, the supporting assembly 14 comprises a supporting plate 141 arranged inside the supporting frame 9, a supporting sleeve 142 arranged inside the supporting plate 141, the connecting rod 13 sleeved inside the supporting sleeve 142, a limiting sliding groove 19 arranged inside the supporting frame 9, and a limiting sliding block 20 slidably connected inside the limiting sliding groove 19 and arranged on one side of the threaded sleeve 18.

[0033] By adopting the technical scheme, the connecting rod 13 can be sleeved and supported by arranging the supporting sleeve 142, and the threaded sleeve 18 can be limited and supported by arranging the limiting sliding groove 19 and the limiting sliding block 20.

[0034] Specifically, the driving assembly 11 comprises a driving sleeve 111 arranged inside the supporting frame 9, a driving rod 112 sleeved inside the driving sleeve 111, one end of the driving rod 112 arranged at one end of the first threaded rod 12, and a knob 113 arranged at the other end of the driving rod 112.

[0035] By adopting the technical scheme, the driving rod 112 can be rotated by rotating the knob 113, and the driving rod 112 can be conveniently adjusted and controlled, and the driving rod 112 can be sleeved and supported by arranging the driving sleeve 111.

[0036] The working principle of the utility model is as follows:

[0037] When it is necessary to screen the breeding seedlings, the specific size of the breeding seed can be determined, the driving assembly 11 is rotated, the first threaded rod 12, the connecting rod 13 and the second threaded rod 16 are rotated, the two threaded sleeves 18 and the adjusting frame 21 are moved, the telescopic frame 15 is adjusted and controlled by being squeezed and pulled apart, the distance between the screening columns 8 is uniformly adjusted, the screening columns 8 are adjusted, the seeds are scattered on the surfaces of the screening columns 8, and different seeds fall into different storage boxes 6 through gradually increasing holes.

[0038] The specific embodiment is only an explanation of the utility model, and is not a limitation of the utility model, and those skilled in the art can make modifications without creative contribution according to the needs after reading the specification, but as long as the modifications are within the scope of the claims of the utility model, the modifications are protected by the patent law.

Claims

1. A seedling screening device for agricultural breeding, comprising a chassis (2), characterized in that: The top of the chassis (2) is provided with a support leg (10), the top of the support leg (10) is provided with a support frame (9), the inner side of the support frame (9) is connected with a rotating shaft (17) through a bearing sleeve, one end of the rotating shaft (17) is welded with a second threaded rod (16), one end of the second threaded rod (16) is welded with a connecting rod (13), the connecting rod (13) and the support frame (9) are provided with a support assembly (14), one end of the connecting rod (13) is welded with a first threaded rod (12), and the first threaded rod (12) and the support frame (9) are provided with a driving assembly (11). The surfaces of the first threaded rod (12) and the second threaded rod (16) are both threadedly connected with a threaded sleeve (18), one side of the threaded sleeve (18) is provided with an adjusting frame (21), one side of the adjusting frame (21) is provided with an extension frame (15) and a protective plate (7), one side of the extension frame (15) is provided with a screening column (8), a plurality of screening columns (8) are provided, and the plurality of screening columns (8) are all of the structure of coarse upper opening and fine lower opening, the top of the chassis (2) is slidably connected with a storage box (6), and the number of the storage box (6) is three.

2. The device for screening of seedlings for agricultural breeding according to claim 1, characterized in that: One side of the storage box (6) is provided with a handle (5), and the bottom of the chassis (2) is provided with a support seat (1).

3. The device for screening of seedlings for agricultural breeding according to claim 1, characterized in that: The inside of the chassis (2) is provided with a supporting sliding groove (3), and the supporting sliding groove (3) is slidably connected with a supporting sliding block (4).

4. The device for screening of seedlings for agricultural breeding according to claim 1, characterized in that: The support assembly (14) comprises a support plate (141), the support plate (141) is arranged in the support frame (9), the support plate (141) is provided with a support sleeve (142) inside, and the connecting rod (13) is sleeved in the support sleeve (142).

5. The device for screening of seedlings for agricultural breeding according to claim 1, characterized in that: The inside of the support frame (9) is provided with a limiting sliding groove (19), and the limiting sliding groove (19) is slidably connected with a limiting sliding block (20).

6. The device of claim 1, wherein: The driving assembly (11) comprises a driving sleeve (111), the driving sleeve (111) is arranged in the support frame (9), the driving sleeve (111) is sleeved with a driving rod (112) inside, one end of the driving rod (112) is arranged at one end of the first threaded rod (12), and the other end of the driving rod (112) is provided with a knob (113).

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