A seed cleanliness testing apparatus
Patent Information
- Application Number
- CN202522325867.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-03
- Publication Date
- 2026-10-09
- Estimated Expiration
- 2035-11-03
AI Technical Summary
[0003]为了克服上述缺陷，本实用新型提供了一种种子净度测试设备，解决了测试设备对种子测试后，净度分析台面上残留的上一批样品的种子或杂质，需要将台面拆下对台面进行清理，但台面通常采用螺栓固定在测试设备顶部，难以拆卸的问题
1、该种子净度测试设备，通过设置卡接块、背光板、活动板与复位弹簧，背光板与底座进行安装时，背光板下移挤压活动板，使活动板通过限位柱带动复位弹簧形变产生相对的弹力，同时背光板挤压卡接块带动扭簧扭曲，使扭簧通过弹力在背光板抵在放置座顶部时带动卡接块对背光板进行卡接固定，按压背光板两侧的卡接块，使卡接块脱离背光板从而取消对背光板的卡接固定，随着复位弹簧的弹力带动活动板挤压背光板，便于将背光板从底座顶部取下，对背光板进行清理，从而避免净度分析台面上残留的上一批样品的种子或杂质。
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Figure CN224839921U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of seed testing technology, specifically a seed purity testing device. Background Technology
[0002] Seed purity testing (also known as seed purity analysis) is one of the core items in seed quality testing. Its purpose is to determine the weight percentage of "pure seeds" in the tested sample, thereby assessing the cleanliness and utilization value of the seeds. When testing seed purity, testing equipment is usually designed and manufactured based on the principles of optical transmission, reflection and magnification, combined with electronic technology and ergonomic principles. It is used for cleaning seeds and detecting seed purity, and for detailed observation and inspection of seeds, seedlings, plant leaves and colonies, as well as analysis and judgment. After testing seeds, existing testing equipment may have seeds or impurities from the previous batch of samples remaining on the purity analysis table. The table needs to be removed for cleaning, but the table is usually fixed to the top of the testing equipment with bolts, making it difficult to disassemble. Utility Model Content
[0003] To overcome the above-mentioned defects, this utility model provides a seed purity testing device, which solves the problem that after the seed testing device has tested the seeds, seeds or impurities from the previous batch of samples remain on the purity analysis table, requiring the table to be removed for cleaning. However, the table is usually fixed to the top of the testing device with bolts, making it difficult to remove.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a seed purity testing device, comprising a base, a placement seat fixedly connected to the top of the inner wall of the base, four mounting blocks symmetrically fixedly connected to the top two sides of the placement seat, the mounting blocks being in groups of two, a rotating rod rotatably connected between each group of mounting blocks via a pin, a snap-fit block fixedly connected to the surface of the rotating rod located between two mounting blocks, a torsion spring fixedly connected to both sides of the snap-fit block, the torsion spring being fixedly connected to the mounting block, a backlight plate mounted on the top of the placement seat, the backlight plate being snap-fitted and fixedly connected to the snap-fit block, movable plates symmetrically and slidably connected through the top of the placement seat, the movable plates being tightly attached to the bottom of the backlight plate, two connecting rods fixedly connected to the bottom of each movable plate, the connecting rods being slidably connected through the placement seat, and a limit post fixedly connected through the bottom of the connecting rods through the placement seat.
[0005] As a further embodiment of this utility model: a return spring is sleeved on the surface of the connecting rod located between the limiting post and the placement seat, and the two ends of the return spring are fixedly connected to the limiting post and the placement seat respectively.
[0006] As a further embodiment of this utility model: a white light is installed at the bottom of the base, and sliding grooves are provided on both sides of the base, with a connecting plate slidably connected through the sliding grooves.
[0007] As a further embodiment of this utility model: the connecting plate is located on one side inside the sliding groove and is rotatably connected to two movable wheels via a rotating shaft. The movable wheels are slidably connected to the inner wall of the sliding groove, and the two connecting plates are fixedly connected to a support frame.
[0008] As a further embodiment of this utility model: four limiting rods are symmetrically fixedly connected to both sides of the support frame, and the limiting rods are in groups of two, with a movable block slidably connected through each group of limiting rods.
[0009] As a further embodiment of this utility model: a connecting spring is sleeved on the surface of the limiting rod located on the top of the movable block, and a scraper is fixedly connected between the two movable blocks.
[0010] As a further embodiment of this utility model: the top of the support frame is provided with an adjustment groove, a sliding block is slidably connected inside the adjustment groove, and a magnifying glass is installed on the top of the sliding block.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This seed purity testing equipment, through the setting of a snap-fit block, a backlight plate, a movable plate, and a return spring, allows the backlight plate to be installed with the base. When the backlight plate moves down and presses against the movable plate, the movable plate causes the return spring to deform through the limiting post, generating a relative elastic force. At the same time, the backlight plate presses against the snap-fit block, causing the torsion spring to twist. When the backlight plate is against the top of the placement base, the torsion spring causes the snap-fit block to snap and fix the backlight plate. Pressing the snap-fit blocks on both sides of the backlight plate causes the snap-fit blocks to disengage from the backlight plate, thus releasing the snap-fit fixation. As the return spring's elastic force causes the movable plate to press against the backlight plate, it is easy to remove the backlight plate from the top of the base for cleaning, thereby avoiding the presence of seeds or impurities from the previous batch of samples remaining on the purity analysis table.
[0012] 2. This seed purity testing equipment consists of a support frame, a movable block, a connecting spring, and a scraper. Pulling the support frame moves the movable block on the top of the base, causing the movable block to slide the scraper on the top of the placement seat. This allows the scraper to move up and down via the movable block and connecting spring, enabling it to move on top of the seeds and flatten them, thus facilitating seed testing. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a cross-sectional structural diagram of the base and mounting block of this utility model; Figure 3 This utility model Figure 2 Enlarged structural diagram at point A; Figure 4 This is a cross-sectional structural diagram of the support frame and scraper of this utility model; In the diagram: 1. Base; 2. Placement seat; 3. Mounting block; 4. Rotating rod; 5. Snap-fit block; 6. Torsion spring; 7. Backlight panel; 8. Movable plate; 9. Connecting rod; 10. Limiting post; 11. Return spring; 12. White light; 13. Sliding groove; 14. Connecting plate; 15. Movable wheel; 16. Support frame; 17. Limiting rod; 18. Movable block; 19. Connecting spring; 20. Scraper; 21. Adjustment groove; 22. Sliding block; 23. Magnifying glass. Detailed Implementation
[0014] The technical solution of this patent will be further described in detail below with reference to specific embodiments.
[0015] like Figure 1-4 As shown, this utility model provides a technical solution: a seed purity testing device, including a base 1, a white light lamp 12 installed at the bottom of the base 1, and sliding grooves 13 on both sides of the base 1. A connecting plate 14 is slidably connected through the sliding grooves 13. By setting the sliding grooves 13, the connecting plate 14 drives the movable wheel 15 to slide inside the sliding grooves 13, so that the sliding grooves 13 can limit the movement of the support frame 16 through the movable wheel 15 and the connecting plate 14, making the movement of the support frame 16 more stable. The connecting plate 14 is located inside the sliding groove 13 and is rotatably connected to two movable wheels 15 via a rotating shaft. The movable wheels 15 are slidably connected to the inner wall of the sliding groove 13. The two connecting plates 14 are fixedly connected to a support frame 16. By setting the support frame 16, the movement of the support frame 16 can drive the scraper 20 and the magnifying glass 23 to move, thereby facilitating the movement of the scraper 20 and the magnifying glass 23 to a suitable position. Four limiting rods 17 are symmetrically fixedly connected on both sides of the support frame 16. The limiting rods 17 are in groups of two. Each group of limiting rods 17 is slidably connected to a movable block 18. By setting the limiting rods 17, when the scraper 20 moves, it drives the movable block 18 to move outside the limiting rods 17. The limiting rods 17 can limit the movement of the scraper 20 through the movable block 18, making the movement of the scraper 20 more stable. A connecting spring 19 is sleeved on the surface of the limiting rod 17 at the top of the movable block 18. A scraper 20 is fixedly connected between the two movable blocks 18. By setting the connecting spring 19, the scraper 20 moves up and down, causing the movable blocks 18 to move together, so that the movable blocks 18 squeeze the connecting spring 19, causing the connecting spring 19 to deform and generate relative elastic force, thereby facilitating the connecting spring 19 to drive the scraper 20 to reset through the elastic force. The top of the support frame 16 is provided with an adjustment groove 21. A sliding block 22 is slidably connected inside the adjustment groove 21. A magnifying glass 23 is installed on the top of the sliding block 22. By setting the sliding block 22, the sliding block 22 can slide inside the adjustment groove 21, thereby facilitating the adjustment of the position of the magnifying glass 23 and facilitating the magnifying glass 23 to test the seeds on the placement seat 2. A placement seat 2 is fixedly connected to the top of the inner wall of the base 1. Four mounting blocks 3 are symmetrically fixedly connected to the top two sides of the placement seat 2. The mounting blocks 3 are in groups of two. A rotating rod 4 is rotatably connected between each group of mounting blocks 3 via a pin. A snap-fit block 5 is fixedly connected to the surface of the rotating rod 4 between two mounting blocks 3. Torsion springs 6 are fixedly connected to both sides of the snap-fit block 5. The torsion springs 6 are fixedly connected to the mounting blocks 3. By setting the torsion springs 6, when the backlight panel 7 is installed on the top of the placement seat 2, the placement seat 2 squeezes the snap-fit block 5, causing the snap-fit block 5 to drive the torsion spring 6 to twist, so that the torsion spring 6 generates relative elastic force. When the backlight panel 7 is pressed against the top of the placement seat 2, the squeezing of the snap-fit block 5 is released. The torsion spring 6 drives the snap-fit block 5 to reset through the elastic force, so that the snap-fit block 5 is snapped with the top of the backlight panel 7. A backlight panel 7 is installed on the top of the placement base 2. The backlight panel 7 is snapped and fixed to the snap-fit block 5. A movable plate 8 is symmetrically slidably connected through the top of the placement base 2. The movable plate 8 is in close contact with the bottom of the backlight panel 7. Two connecting rods 9 are fixedly connected to the bottom of each movable plate 8. The connecting rods 9 are slidably connected through the placement base 2. The bottom of the connecting rod 9 passes through the placement base 2 and is fixedly connected to the limiting post 10. A return spring 11 is sleeved on the surface of the connecting rod 9 between the limiting post 10 and the placement base 2. The two ends of the return spring 11 are fixedly connected to the limiting post 10 and the placement base 2, respectively. By setting the connecting rods 9, when the movable plate 8 is pressed down by the backlight panel 7, the movable plate 8 can drive the connecting rod 9 to move downward. The connecting rod 9 drives the return spring 11 to deform. At the same time, the connecting rod 9 slides inside the placement base 2, so that the placement base 2 can limit the movement of the movable plate 8 through the connecting rod 9, making the movement of the movable plate 8 more stable.
[0016] The working principle of this utility model is as follows: Align the backlight panel 7 with the locking block 5 at the top of the placement base 2, then lower the backlight panel 7 so that it presses against the locking block 5 and the movable plate 8. The locking block 5 can move to both sides of the backlight panel 7, causing the torsion spring 6 to rotate. At the same time, the movable plate 8 moves down, causing the connecting rod 9 to move. The connecting rod 9, through the limiting post 10, causes the return spring 11 to deform, generating a relative elastic force. As the backlight panel 7 presses against the top of the placement base 2, the pressure on the locking block 5 is released. The torsion spring 6, through its elastic force, causes the locking block 5 to return to its original position, so that the locking block 5 presses against the top of the backlight panel 7, thus limiting and fixing the backlight panel 7. Then, pour the seeds onto the top of the backlight plate 7, pull the support frame 16, and move the scraper 20. The scraper 20 slides on top of the seeds through the movable block 18 and the connecting spring 19, so that the seeds are spread flat on the top of the backlight plate 7, making it convenient to test the seeds through the magnifying glass 23. After the test is completed, press the locking block 5 to remove the locking block 5 from the backlight plate 7, so that the reset spring 11 drives the connecting rod 9 to reset through the elastic force. The connecting rod 9 can drive the backlight plate 7 to pop out through the movable plate 8, so as to facilitate the cleaning of the seeds and impurities on the top of the backlight plate 7.
[0017] In the description of this utility model, it should be noted that, 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 based on the specific circumstances.
[0018] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.
Claims
1. A seed purity testing device, comprising a base (1), characterized in that: The base (1) has a fixed seat (2) on the top of its inner wall. Four mounting blocks (3) are fixedly connected symmetrically on both sides of the top of the mounting block (2). The mounting blocks (3) are in groups of two. A rotating rod (4) is rotatably connected between each group of mounting blocks (3) via a pin. A snap-fit block (5) is fixedly connected to the surface of the rotating rod (4) between two mounting blocks (3). Torsion springs (6) are fixedly connected to both sides of the snap-fit block (5). The torsion springs (6) are fixedly connected to the mounting blocks (3). A backlight plate (7) is installed on the top of the mounting block (2). The backlight plate (7) is snap-fitted to the snap-fit block (5). A movable plate (8) is symmetrically slidably connected through the top of the mounting block (2). The movable plate (8) is close to the bottom of the backlight plate (7). Two connecting rods (9) are fixedly connected to the bottom of each movable plate (8). The connecting rods (9) are slidably connected through the mounting block (2). The bottom of the connecting rods (9) passes through the mounting block (2) and is fixedly connected to a limit post (10).
2. The seed purity testing device according to claim 1, characterized in that: The connecting rod (9) is fitted with a return spring (11) on the surface between the limiting post (10) and the placement seat (2), and the two ends of the return spring (11) are fixedly connected to the limiting post (10) and the placement seat (2) respectively.
3. The seed purity testing device according to claim 1, characterized in that: A white light lamp (12) is installed at the bottom of the base (1). Sliding grooves (13) are provided on both sides of the base (1). A connecting plate (14) is slidably connected through the sliding grooves (13).
4. The seed purity testing device according to claim 3, characterized in that: The connecting plate (14) is located inside the sliding groove (13) and is rotatably connected to two movable wheels (15) via a rotating shaft. The movable wheels (15) are slidably connected to the inner wall of the sliding groove (13), and the two connecting plates (14) are fixedly connected to a support frame (16).
5. The seed purity testing device according to claim 4, characterized in that: The support frame (16) is symmetrically fixedly connected to four limiting rods (17) on both sides. The limiting rods (17) are in groups of two, and each group of the limiting rods (17) is slidably connected to a movable block (18).
6. The seed purity testing device according to claim 5, characterized in that: The limiting rod (17) is fitted with a connecting spring (19) on the surface of the top of the movable block (18), and a scraper (20) is fixedly connected between the two movable blocks (18).
7. The seed purity testing device according to claim 4, characterized in that: The support frame (16) has an adjustment groove (21) on its top. A sliding block (22) is slidably connected inside the adjustment groove (21). A magnifying glass (23) is installed on the top of the sliding block (22).