A plant quarantine microscopic observation device

Abstract

This invention discloses a plant quarantine microscopic observation device, including a base with a groove for placing an observation plate. A slider slides within the groove and is connected to the base by a compression spring. A lifting plate rotates on the slider, and the observation plate is placed on the upper surface of the lifting plate. A limiting plate is fixed to one end of the lifting plate near the slider. When the lifting plate rotates to a horizontal position, the limiting plate and one side of the groove form a clamping space for holding the observation plate. This device is easy to operate and has a simple structure. By rotating the lifting plate, the observation plate can be clamped and easily placed and removed.

Description

Technical Field

[0001] This utility model relates to the field of plant quarantine, specifically to a plant quarantine microscopic observation device. Background Technology

[0002] Plant quarantine is a measure to prevent the human-induced spread of dangerous plant diseases, insects, weeds and other harmful organisms through legal, administrative and technical means, to ensure the safety of agriculture and forestry, and to promote trade development. Its characteristic is to prevent the introduction, establishment and spread of all harmful organisms (especially those not found in the local area) from the macro-level overall perspective. However, during plant quarantine, some insects and plant seeds cannot be effectively identified and distinguished by the naked eye, and microscopes and other devices are needed for auxiliary observation.

[0003] Patent CN 220691188 U discloses a microscope slide specimen holder, including a microscope stage, with fixed seats symmetrically arranged on both sides of the microscope stage; a horizontal bar parallel to the top surface of the microscope stage is inserted into the middle of each fixed seat on both sides, a limit ring is installed at one end of the horizontal bar, and a horizontal clamping seat for clamping is installed at the end of the horizontal bar away from the limit ring; a clamping spring is wound around the outer wall of the horizontal bar and is arranged between the horizontal clamping seat and the fixed seat; a top seat is installed on the top of the horizontal clamping seat, and the top seat and the horizontal clamping seat are connected in an L-shape, with a vertical clamping device installed at the center of the top of the top seat.

[0004] However, the device still has the following problems:

[0005] 1. When placing or removing the observation plate or slide, since the microscope stage is a flat surface and the observation plate or slide is relatively thin, the fingers need to be close to the surface of the stage to pick it up. Due to insufficient friction, the slide may slip or the fingers may touch the sample and contaminate it.

[0006] 2. Once the observation plate or slide is clamped, it is impossible to rotate the specimen for observation, which can easily lead to blind spots during observation. Utility Model Content

[0007] To address the problems existing in the prior art, a plant quarantine microscopic observation device is provided to solve the problems mentioned in the above technical background.

[0008] The technical solution adopted by this utility model to solve its technical problem is:

[0009] This utility model proposes a plant quarantine microscopic observation device, including a base with a groove for placing an observation plate. A slider slides in the groove and is connected to the base by a compression spring. A lifting plate rotates on the slider, and the observation plate is placed on the upper surface of the lifting plate. A limiting plate is fixed to one end of the lifting plate near the slider. When the lifting plate rotates to a horizontal position, the limiting plate and one side of the groove form a clamping space for holding the observation plate.

[0010] Preferably, a top rod is slidably connected in the vertical direction inside the base, and the top end of the top rod cooperates with the lower surface of the lifting plate.

[0011] Preferably, a cylindrical cam is rotatably mounted inside the base, and a groove is provided on the cylindrical cam, with the lower end of the push rod slidably disposed within the groove.

[0012] Preferably, the cylinder is rotatably connected to the base via a rotating shaft, the rotating shaft is rotatably connected to a pawl, the base is also rotatably connected to a gear, the base is also slidably connected to a rack that meshes with the gear, the inner ring of the gear is fixedly connected to a ratchet that matches the pawl, and the pawl is connected to the drive shaft via a torsion spring.

[0013] Preferably, the pivot is located inside the ratchet, and the length of the pawl is greater than the gap width between the ratchet and the pivot.

[0014] Preferably, the rack is fixed to the slider.

[0015] Preferably, the base is rotatably mounted on a rotating base, and the rotating base is connected to the microscope via a connecting mechanism.

[0016] Preferably, a turbine is fixed on the base, and a worm gear that cooperates with the turbine is rotatably connected to the swivel.

[0017] Preferably, the connecting mechanism is a connecting plate with threaded holes.

[0018] Preferably, the observation plate has a plurality of hemispherical grooves, the diameter of which is 1-10mm.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. This utility model is equipped with a lifting plate, which is rotatably mounted on the slider. The lifting plate is initially tilted upward at one end, which facilitates the picking and placing of the observation plate. At the same time, the clamping plate can also be rotated to a horizontal position, which facilitates the subsequent clamping of the observation plate. Compared with conventional flat stage, after the lifting plate is tilted, the edge of the slide is raised, and the fingers can more naturally pinch the two sides of the observation plate. The gripping position is higher, which can reduce the risk of slide breakage due to unstable operation and is more in line with hand operation habits.

[0021] 2. This utility model is provided with a cylindrical cam, and a push rod slides in the groove of the cylindrical cam. By rotating the cylindrical cam, the push rod moves up and down along the groove of the cylindrical cam, thereby driving the lifting plate to rotate, so as to facilitate the picking and putting away of the observation plate.

[0022] 3. This utility model is equipped with a worm gear. By rotating the worm, the worm wheel rotates. At the same time, the worm wheel is fixed on the base. Therefore, the rotation of the worm can drive the base to rotate. When observing, rotating the base can enable multi-angle observation of the observation plate on the base, reducing the occurrence of blind spots. Attached Figure Description

[0023] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0024] Figure 1 This is a perspective view of the present invention;

[0025] Figure 2 This is a top view of the present invention;

[0026] Figure 3 This is a schematic diagram of the internal structure of this utility model (working state one);

[0027] Figure 4 This is a schematic diagram of the internal structure of this utility model (working state two);

[0028] Figure 5 This is a schematic diagram of the gear structure of this utility model;

[0029] Figure 6 This is a top view of the observation plate of this utility model;

[0030] Figure 7 This is the unfolded view of the cylindrical cam of this utility model.

[0031] Explanation of reference numerals in the attached figures:

[0032] 1. Base; 2. Observation plate; 3. Slider; 4. Compression spring; 5. Lifting plate; 6. Limiting plate; 7. Top rod; 8. Cylindrical cam; 9. Slide groove; 10. Rotating shaft; 11. Pawl; 12. Gear; 13. Rack; 14. Ratchet; 15. Rotary seat; 16. Turbine; 17. Worm gear; 18. Connecting plate; 19. Hemispherical groove; 20. Soft pad. Detailed Implementation

[0033] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0034] like Figures 1-6 As shown, this embodiment proposes a plant quarantine microscopic observation device, including a base 1, a groove for placing an observation plate 2 on the base 1, a slider 3 sliding in the groove, the slider 3 being connected to the base 1 by a compression spring 4, a lifting plate 5 rotating on the slider 3, the observation plate 2 being placed on the upper surface of the lifting plate 5, a limiting plate 6 being fixed at one end of the lifting plate 5 near the slider 3, and when the lifting plate 5 is rotated to a horizontal position, the limiting plate 6 and one side of the groove form a clamping space for clamping the observation plate 2.

[0035] By rotating the lifting plate 5, the lifting plate 5 can be switched between horizontal and tilted states. When the lifting plate 5 is tilted, it is convenient to pick up and put down the observation plate 2. The fingers can more naturally pinch the sides of the observation plate, which helps to reduce the risk of glass slide breakage due to unstable operation and is more in line with hand operation habits.

[0036] When the lifting plate 5 is in a horizontal state, pull the slider 3 to compress the spring 4 and store force. At the same time, the slider 3 drives the lifting plate 5 to slide, so that the observation plate 2 placed on the lifting plate 5 is completely in the groove. Release the slider 3, and the spring 4 releases its elastic force, so that the limiting plate 6 drives the observation plate 2 to move closer to the edge of the groove, thereby clamping the observation plate 2.

[0037] A top rod 7 is slidably connected in the vertical direction inside the base 1, and the top end of the top rod 7 cooperates with the lower surface of the lifting plate 5.

[0038] When the push rod 7 slides upward, it can drive the lifting plate 5 to rotate from a horizontal state to a tilted state at one end. When the push rod 7 slides downward, the lifting plate 5 rotates to a horizontal state under the action of gravity.

[0039] A cylindrical cam 8 rotates inside the base 1. A groove 9 is provided on the cylindrical cam 8, and the lower end of the push rod 7 is slidably disposed in the groove 9.

[0040] The slide 9 includes an inclined groove and a horizontal groove. When the cylindrical cam 8 rotates, the push rod slides along the inclined groove, which can drive the push rod 7 to rise and fall. The horizontal groove is divided into an upper horizontal groove and a lower horizontal groove. When the push rod 7 is in the upper horizontal groove, it can maintain the lifting state of the lifting plate 5. When the push rod 7 is in the lower horizontal groove, it can maintain the disengagement state from the lifting plate 5.

[0041] The cylinder is rotatably connected to the base 1 via a rotating shaft 10. A pawl 11 is rotatably connected to the rotating shaft 10. A gear 12 is also rotatably connected to the base 1. A rack 13 that meshes with the gear 12 is also slidably connected to the base 1. A ratchet 14 that matches the pawl 11 is fixedly connected to the inner ring of the gear 12. The pawl 11 is connected to the rotating shaft 10 via a torsion spring.

[0042] The torsion spring is used for the reset of the pawl 11. Under the action of the torsion spring, the pawl 11 can always be in a state of engagement with the ratchet 14.

[0043] The pivot 10 is located inside the ratchet 14, and the length of the pawl 11 is greater than the gap width between the ratchet 14 and the pivot 10.

[0044] With the above settings, when the rack 13 drives the gear 12 to rotate clockwise, since the length of the pawl 11 is greater than the width of the gap, the rotating shaft 10 can be driven to rotate through the pawl 11.

[0045] When the rack 13 slides to the right, it can drive the gear 12 to rotate clockwise. At this time, the gear 12 drives the rotating shaft 10 to rotate through the pawl 11.

[0046] The spring force of the torsion spring is less than the frictional force required for the shaft 10 to rotate. Therefore, when the gear 12 rotates counterclockwise, it can drive the pawl 11 to rotate around the shaft 10, causing the torsion spring to deform, while the shaft 10 does not rotate.

[0047] The rack 13 is fixed to the slider 3.

[0048] By pulling the slider 3, the slider 3 drives the rack 13 to slide, thereby realizing the up and down sliding of the cylindrical cam 8 and the push rod 7.

[0049] The base 1 is rotatably mounted on the rotating base 15, which is connected to the microscope via a connecting mechanism.

[0050] A turbine 16 is fixed on the base 1, and a worm gear 17 that cooperates with the turbine 16 is rotatably connected to the swivel 15.

[0051] By rotating the worm gear 17, the worm wheel 16 is rotated. Since the worm wheel 16 is fixed on the base 1, the rotation of the worm gear 17 can drive the base 1 to rotate. When observing, rotating the base 1 allows for multi-angle observation of the observation plate 2 on the base 1, reducing the occurrence of blind spots.

[0052] The connecting mechanism is a connecting plate 18 with threaded holes.

[0053] The observation plate 2 has several hemispherical grooves 19, the diameter of which is 1-10mm.

[0054] Depending on the size of the insect or grass seed, it can be placed in different hemispherical grooves 19. By rotating the base 1, the sample can be observed from all directions under a stereomicroscope.

[0055] A soft pad 20 is fixed to one side of the groove.

[0056] Specific work process:

[0057] S1: Place the material to be observed in the hemispherical groove 19 on the observation plate 2, place the observation plate 2 on the lifting plate 5, and pull the slider 3 to the rightmost end so that the slider 3 drives the lifting plate to slide to the right.

[0058] S2: During the sliding process of slider 3, it drives rack 13 to slide to the right. Rack 13 drives gear 12 to rotate clockwise. Gear 12 drives shaft 10 to rotate through pawl 11. Shaft 10 is fixedly connected to cylindrical cam 8. Shaft 10 further drives cylindrical cam 8 to rotate. Push rod 7 slides from the middle position of upper horizontal groove to the middle position of lower horizontal groove along inclined groove. Push rod 7 no longer lifts lifting plate 5. Lifting plate 5 drives observation plate 2 to rotate to horizontal position under the action of gravity. Rack 13 and rack 12 disengage.

[0059] S3: When slider 3 reaches the rightmost end, spring 4 is compressed. At this time, the left end of observation plate 2 passes the left end of the groove and enters the groove, pushing slider 3 to move to the left. Spring 4 releases its elastic force, and through slider 3 and limiting plate 6, it drives observation plate 2 to move. The left end of observation plate 2 gradually contacts soft pad 20 in the groove. Limiting plate 6 and soft pad 20 clamp observation plate.

[0060] S4: After observation, pull slider 3 to the rightmost end again. At this time, rack 13 drives gear 12 to rotate. Gear 12 drives shaft 10 to rotate through pawl 11. Shaft 10 further drives cylindrical cam 8 to rotate. Push rod 7 slides from the middle of the lower horizontal groove to the middle of the upper horizontal groove. Push rod 7 lifts lifting plate 5. Lifting plate 5 causes observation plate 2 to tilt, making it easier to pick up observation plate 2.

[0061] In S3, when slider 3 moves to the left, rack 13 drives gear 12 to rotate counterclockwise. The spring force of torsion spring is less than the friction force required for shaft 10 to rotate. At this time, pawl 11 can be driven to rotate around shaft 10, causing torsion spring to deform. At this time, shaft 10 does not rotate.

[0062] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A plant quarantine microscopic observation device, comprising a base (1), characterized in that, The base (1) has a groove for placing the observation plate (2). A slider (3) slides in the groove. The slider (3) is connected to the base (1) by a compression spring (4). A lifting plate (5) rotates on the slider (3). The observation plate (2) is placed on the upper surface of the lifting plate (5). A limiting plate (6) is fixed to one end of the lifting plate (5) near the slider (3). When the lifting plate (5) rotates to a horizontal position, the limiting plate (6) and one side of the groove form a clamping space for clamping the observation plate (2).

2. The plant quarantine microscopic observation device according to claim 1, characterized in that, A top rod (7) is slidably connected in the vertical direction inside the base (1), and the top end of the top rod (7) cooperates with the lower surface of the lifting plate (5).

3. The plant quarantine microscopic observation device according to claim 2, characterized in that, A cylindrical cam (8) rotates inside the base (1), and a groove (9) is provided on the cylindrical cam (8). The lower end of the push rod (7) is slidably disposed in the groove (9).

4. The plant quarantine microscopic observation device according to claim 3, characterized in that, The cylinder is rotatably connected to the base (1) via a rotating shaft (10). A pawl (11) is rotatably connected to the rotating shaft (10). A gear (12) is also rotatably connected to the base (1). A rack (13) that meshes with the gear (12) is also slidably connected to the base (1). A ratchet (14) that matches the pawl (11) is fixedly connected to the inner ring of the gear (12). The pawl (11) is connected to the rotating shaft (10) via a torsion spring.

5. The plant quarantine microscopic observation device according to claim 4, characterized in that, The pivot (10) is located inside the ratchet (14), and the length of the pawl (11) is greater than the gap width between the ratchet (14) and the pivot (10).

6. The plant quarantine microscopic observation device according to claim 4, characterized in that, The rack (13) is fixed to the slider (3).

7. The plant quarantine microscopic observation device according to claim 1, characterized in that, The base (1) is rotatably mounted on the rotating seat (15), which is connected to the microscope via a connecting mechanism.

8. The plant quarantine microscopic observation device according to claim 7, characterized in that, A turbine (16) is fixed on the base (1), and a worm (17) that cooperates with the turbine (16) is rotatably connected to the swivel (15).

9. A plant quarantine microscopic observation device according to claim 7, characterized in that, The connecting mechanism is a connecting plate (18) with threaded holes.

10. A plant quarantine microscopic observation device according to claim 1, characterized in that, The observation plate (2) has several hemispherical grooves (19) with a diameter of 1-10 mm.

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