Screening equipment for forest tree seed production

Abstract

The screening equipment for forest tree seed production comprises a screening box, a first screen and a second screen, two sets of first fixing blocks are fixedly installed on the inner wall of the screening box, a spring is fixedly installed on the upper surface of each first fixing block, a second fixing block is fixedly installed at the top end of each spring, and the first fixing blocks and the second fixing blocks are fixedly installed on the screening box. A limiting hole is formed in the upper surface of each second fixing block, limiting rods are fixedly installed on the bottom face of the first screen and the bottom face of the second screen, and the bottom end of each limiting rod penetrates through the corresponding limiting hole and extends into the corresponding spring. The vibrating motor is installed on the bottom face of the second screen, the first screen and the second screen are assembled together through the four connecting plates, and therefore the vibrating motor can drive the first screen and the second screen to vibrate at the same time; and full forest tree seeds, wizened forest tree seeds and impurities can be effectively screened.

Description

Technical Field

[0001] The present application relates to the technical field of forest planting, and in particular to a screening device for forest seed production. Background Art

[0002] Tree seeds are the reproductive organs of trees and are a general term for sowing materials in forestry production. According to botanical understanding, they actually include five types: true seeds, such as pine and poplar; fruits, winged fruits such as Ailanthus and Ulmus pumila, nuts such as Quercus and Tilia, achenes such as mulberry, and caryopsis such as bamboo; parts of fruits, such as walnut and neem; parts of seeds, such as ginkgo and magnolia; seeds formed by apomixis, such as citrus, etc.

[0003] When raising seedlings and afforestation, the required seeds must have excellent genetic quality and sowing quality. The seed size and fullness of some tree varieties determine the quality of the seeds. Therefore, it is necessary to screen such tree seeds. When the existing tree seed screening equipment is used for screening, the seed screening quality is poor. Therefore, we propose a screening equipment for tree seed production to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a screening device for forest seed production to solve the problems raised in the above-mentioned background technology.

[0005] The present application embodiment adopts the following technical solutions:

[0006] A screening device for forest seed production comprises a screening box, a first screen and a second screen, two groups of first fixed blocks are fixedly installed on the inner wall of the screening box, a spring is fixedly installed on the upper surface of each of the first fixed blocks, a second fixed block is fixedly installed on the top of each of the springs, a limiting hole is provided on the upper surface of each of the second fixed blocks, limiting rods are fixedly installed on the bottom surface of the first screen and the bottom surface of the second screen, the bottom end of each limiting rod passes through the limiting hole and extends to the inside of the spring, four connecting plates are fixedly installed on the bottom surface of the first screen, the bottom surface of each connecting plate is fixedly installed on the upper surface of the second screen, and a vibration motor is fixedly installed on the bottom surface of the second screen.

[0007] Preferably, a first outlet is opened on the right side of the screening box, and a first flow guide hopper is fixedly installed on the right side of the screening box.

[0008] Preferably, a second outlet is opened on the right side of the screening box, and a second guide hopper is fixedly installed on the right side of the screening box.

[0009] Preferably, the upper surface of the screening box is fixedly connected to a feed hopper, a limiting opening is provided on the right side of the feed hopper, a baffle is provided outside the feed hopper, and the left end of the baffle passes through the limiting opening and extends to the inside of the feed hopper.

[0010] Preferably, a first guide plate is fixedly mounted on the inner top wall of the screening box, a second guide plate is fixedly mounted on the inner side wall of the screening box, and a strip-shaped opening is opened on the bottom surface of the screening box.

[0011] Preferably, a control box is fixedly mounted on the front of the screening box, a controller is fixedly mounted on the inner wall of the control box, a box door is hingedly connected to the outer surface of the control box via a hinge, and a dial plate is fixedly mounted on the front of the box door.

[0012] Preferably, four supporting legs are fixedly mounted on the bottom surface of the screening box, and a supporting seat is fixedly mounted on the bottom surface of each supporting leg.

[0013] At least one of the above technical solutions adopted in the embodiments of the present application can achieve the following beneficial effects:

[0014] First, by installing a vibration motor on the bottom surface of the second screen and using four connecting plates to assemble the first screen and the second screen together, the vibration motor can drive the first screen and the second screen to vibrate at the same time. By arranging the first screen and the second screen inside the screening box, full forest seeds, shriveled forest seeds and impurities can be effectively screened out.

[0015] Secondly, by installing limiting rods on the bottom surface of the first screen and the bottom surface of the second screen, and making the bottom end of each limiting rod pass through the limiting holes opened on the upper surface of the second fixed block, the first screen and the second screen can be firmly installed inside the screening box. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0017] Figure 1 The three-dimensional structure diagram of the front view of the utility model is as follows;

[0018] Figure 2 The following is a three-dimensional structural diagram of a front cross-sectional view of a control box in the present utility model;

[0019] Figure 3 The utility model is a three-dimensional structural diagram of a front cross-sectional view of a screening box;

[0020] Figure 4 The utility model is a three-dimensional structural diagram of a side section view of a screening box;

[0021] Figure 5 : A three-dimensional structural schematic diagram of a side sectional view of the second fixing block in the utility model;

[0022] Figure 6 for: Figure 3 Enlarged structural diagram at A in the middle.

[0023] In the figure: 1. feed hopper; 2. baffle; 3. screening box; 4. control box; 5. box door; 6. dial plate; 7. support leg; 8. support seat; 9. first outlet; 10. first guide hopper; 11. second outlet; 12. second guide hopper; 13. controller; 14. first guide plate; 15. second guide plate; 16. first screen; 17. connecting plate; 18. second screen; 19. vibration motor; 20. first fixed block; 21. strip mouth; 22. spring; 23. second fixed block; 24. limit hole; 25. limit rod; 26. limit mouth. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in combination with the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0025] The technical solutions provided by various embodiments of the present application are described in detail below in conjunction with the accompanying drawings.

[0026] See also Figure 1-6 The utility model provides a technical solution for screening equipment for forest seed production:

[0027] A screening device for forest seed production comprises a screening box 3, a first screen 16 and a second screen 18. Two groups of first fixed blocks 20 are fixedly installed on the inner wall of the screening box 3. A spring 22 is fixedly installed on the upper surface of each first fixed block 20. A second fixed block 23 is fixedly installed on the top of each spring 22. A limiting hole 24 is provided on the upper surface of each second fixed block 23. A limiting rod 25 is fixedly installed on the bottom surface of the first screen 16 and the bottom surface of the second screen 18. The bottom end of each limiting rod 25 passes through the limiting hole 24 and extends to the inside of the spring 22. Four connecting plates 17 are fixedly installed on the bottom surface of the first screen 16. The bottom surface of each connecting plate 17 is fixedly mounted on the upper surface of the second screen 18, and a vibration motor 19 is fixedly mounted on the bottom surface of the second screen 18; specifically, by installing four limiting rods 25 on the bottom surface of the first screen 16 and four limiting rods 25 on the bottom surface of the second screen 18, and making the bottom end of each limiting rod 25 pass through the limiting hole 24, the first screen 16 and the second screen 18 can be stably mounted inside the screening box 3, and the first screen 16 and the second screen 18 are connected together by using four connecting plates 17, so that the vibration motor 19 can drive the first screen 16 and the second screen 18 to vibrate together after starting;

[0028] In this embodiment, a first outlet 9 is provided on the right side of the screening box 3, and a first guide hopper 10 is fixedly installed on the right side of the screening box 3; a second outlet 11 is provided on the right side of the screening box 3, and a second guide hopper 12 is fixedly installed on the right side of the screening box 3; the upper surface of the screening box 3 is fixedly connected with the feed hopper 1, and a limiting opening 26 is provided on the right side of the feed hopper 1, and a baffle 2 is provided on the outside of the feed hopper 1, and the left end of the baffle 2 passes through the limiting opening 26 and extends to the inside of the feed hopper 1; specifically, the remaining seeds above the first screen 16 can be discharged to the outside of the screening box 3 through the first outlet 9, the first guide hopper 10 has a guiding effect on the seeds screened by the first screen 16, and the remaining seeds above the second screen 18 can be discharged to the outside of the screening box 3 through the second outlet 11, and the second guide hopper 12 has a guiding effect on the seeds on the upper surface of the second screen 18. By passing the left end of the baffle 2 through the limiting opening 26 and extending to the inside of the feed hopper 1, the staff can control the speed at which the forest seeds enter the screening box 3;

[0029] In this embodiment, a first guide plate 14 is fixedly installed on the inner top wall of the screening box 3, a second guide plate 15 is fixedly installed on the inner side wall of the screening box 3, and a strip-shaped opening 21 is opened on the bottom surface of the screening box 3; a control box 4 is fixedly installed on the front of the screening box 3, a controller 13 is fixedly installed on the inner wall of the control box 4, a box door 5 is hinged on the outer surface of the control box 4 through a hinge, and a dial plate 6 is fixedly installed on the front of the box door 5; four supporting legs 7 are fixedly installed on the bottom surface of the screening box 3, and a supporting seat 8 is fixedly installed on the bottom surface of each supporting leg 7; specifically, the first guide plate 14 and the second guide plate 15 jointly play a role in preventing seeds from falling into the screening box 3 The strip opening 21 is provided on the bottom surface of the screening box 3 so that the impurities filtered out by the second screen 18 can be discharged to the outside of the screening box 3 through the strip opening 21. The control box 4 and the box door 5 can protect the controller 13. The user can easily open the box door 5 by turning the dial plate 6. The controller 13 is electrically connected to the vibration motor 19 through a wire. The user can start or shut down the vibration motor 19 through the controller 13. The four support legs 7 jointly lift the device to a certain height. The four support seats 8 increase the contact area between the device and the ground, so that the device can be placed stably.

[0030] Working principle: When the device is used, the user first pours the forest seeds into the feed hopper 1, and then the user starts the vibration motor 19 through the controller 13, and then the staff pulls the baffle 2 to control the speed at which the forest seeds enter the screening box 3. The first screen 16 vibrates to make the drier particles and smaller seeds and impurities fall to the upper surface of the second screen 18. The first screen 16 vibrates to make the seeds with fuller particles and larger seeds gradually move to the first outlet 9 and be discharged. The second screen 18 vibrates to make the impurities fall to the inner bottom wall of the screening box 3, and the impurities can be discharged to the screening box 3 through the strip opening 21. The second screen 18 vibrates to drive the remaining seeds on its upper surface to gradually move to the second outlet 11 and be discharged.

[0031] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0032] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A screening device for forest seed production, comprising a screening box (3), a first screen (16) and a second screen (18), characterized in that: Two groups of first fixed blocks (20) are fixedly mounted on the inner wall of the screening box (3); a spring (22) is fixedly mounted on the upper surface of each of the first fixed blocks (20); a second fixed block (23) is fixedly mounted on the top of each of the springs (22); a limiting hole (24) is provided on the upper surface of each of the second fixed blocks (23); a limiting rod (25) is fixedly mounted on the bottom surface of the first screen (16) and the bottom surface of the second screen (18); the bottom end of each limiting rod (25) passes through the limiting hole (24) and extends to the inside of the spring (22); four connecting plates (17) are fixedly mounted on the bottom surface of the first screen (16); the bottom surface of each connecting plate (17) is fixedly mounted on the upper surface of the second screen (18); and a vibration motor (19) is fixedly mounted on the bottom surface of the second screen (18).

2. The screening device for forest seed production according to claim 1, characterized in that: A first outlet (9) is provided on the right side of the screening box (3), and a first flow guide hopper (10) is fixedly mounted on the right side of the screening box (3).

3. The screening device for forest seed production according to claim 1, characterized in that: A second outlet (11) is provided on the right side of the screening box (3), and a second flow guide hopper (12) is fixedly mounted on the right side of the screening box (3).

4. The screening device for forest seed production according to claim 1, characterized in that: The upper surface of the screening box (3) is fixedly connected to a feed hopper (1), a limit opening (26) is provided on the right side of the feed hopper (1), a baffle (2) is provided outside the feed hopper (1), and the left end of the baffle (2) passes through the limit opening (26) and extends to the inside of the feed hopper (1).

5. The screening device for forest seed production according to claim 1, characterized in that: A first flow guide plate (14) is fixedly mounted on the inner top wall of the screening box (3), a second flow guide plate (15) is fixedly mounted on the inner side wall of the screening box (3), and a strip-shaped opening (21) is provided on the bottom surface of the screening box (3).

6. The screening device for forest seed production according to claim 1, characterized in that: A control box (4) is fixedly mounted on the front of the screening box (3), a controller (13) is fixedly mounted on the inner wall of the control box (4), a box door (5) is hingedly connected to the outer surface of the control box (4) via a hinge, and a dial plate (6) is fixedly mounted on the front of the box door (5).

7. The screening device for forest seed production according to claim 1, characterized in that: Four support legs (7) are fixedly mounted on the bottom surface of the screening box (3), and a support seat (8) is fixedly mounted on the bottom surface of each support leg (7).

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