Cotton verticillium wilt stalk living body sampling device

Abstract

The utility model discloses a cotton verticillium wilt stalk living body sampling device which comprises a first stalk positioning mechanism and a second stalk positioning mechanism, and clamping arm limiting rings are respectively sleeved on connecting rods of the two stalk positioning mechanisms; the clamping arm limiting ring is positioned on the front side of the sampler main body; the outer ring of the clamping arm limiting ring is rotationally connected with a screw through a bearing; the rear end of the screw is in threaded connection with the front end of the sampler main body. According to the in-vivo sampling device for the cotton verticillium wilt stalks, the cotton stalks can be tightened and clamped through the first stalk clamping arm and the second stalk clamping arm, and then in-vivo sampling is conducted on the cotton stalks; the tightening positions of the first stalk clamping arm and the second stalk clamping arm can be adjusted, so that the first stalk clamping arm and the second stalk clamping arm are matched with the rotating radius of the sampling cutter when tightening and clamping the cotton stalk, and the size of the cut part is proper when the sampling cutter passes through the cotton stalk in a rotating manner; and the problems caused by too few or too many cut parts are avoided.

Description

Technical Field

[0001] This utility model relates to the field of cotton stalk sampling technology, specifically to a live sampling device for cotton Verticillium wilt stalks. Background Technology

[0002] Cotton Verticillium wilt is a cotton disease caused by the pathogen Verticillium wilt, primarily affecting the stems, branches, and leaves of cotton plants. It spreads widely through various vectors, including cotton seeds, diseased plant debris, soil, fertilizer, and agricultural tools. The damage caused by cotton Verticillium wilt is quite severe; mild cases result in leaves turning yellow and buds and bolls falling off, leading to significant yield reduction; severe cases can cause entire plants to die, resulting in total crop failure.

[0003] When treating cotton Verticillium wilt, it is necessary to take live samples of the infected cotton stems and spray pesticides according to the actual disease condition of the samples. Chinese Patent Application No. 202222315340.6 discloses a handheld live sampler for cotton Verticillium wilt stems. When taking live samples, the first and second stem clamping arms of the first and second stem positioning mechanisms surround the cotton stem (placing the cotton stem between the first and second stem clamping arms). Then, a movable positioning rod moves the connecting rod of the first and second stem positioning mechanisms backward, causing the first and second stem clamping arms to move backward gradually closer to the clamping arm limiting opening of the sampler body (the first and second stem clamping arms of the first stem positioning mechanism move backward gradually closer to the top clamping arm limiting opening, and the second stem clamping arm moves backward...). The first and second stem clamping arms of the positioning mechanism move backward and gradually approach the bottom clamping arm limiting opening, thereby tightening the first and second stem clamping arms through the clamping arm limiting opening (the first and second stem clamping arms of the first stem positioning mechanism tighten through the top clamping arm limiting opening, and the first and second stem clamping arms of the second stem positioning mechanism tighten through the bottom clamping arm limiting opening), thus clamping the cotton stem. Then, the cutting blade rotation motor drives the sampling cutter to rotate through the cutting blade shaft. When the sampling cutter rotates and passes through the cotton stem, it cuts off part of the cotton stem, realizing live sampling of the cotton stem.

[0004] Although the patented handheld cotton wilt stalk live sampling machine can achieve live sampling of cotton stalks, during the process of clamping the cotton stalk, the No. 1 and No. 2 stalk clamping arms need to be tightened through the clamping arm limiting opening. However, the position of the clamping arm limiting opening is fixed, so the starting position of the No. 1 and No. 2 stalk clamping arms cannot be adjusted. This may cause a mismatch between the rotation radius of the No. 1 and No. 2 stalk clamping arms when clamping the cotton stalk and the sampling cutter. Consequently, when the sampling cutter rotates through the cotton stalk, it may cut off too little or too much. If too little is cut off, it will not be possible to effectively analyze the actual disease condition of the cotton stalk. If too much is cut off, it will cause excessive damage to the cotton stalk. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this utility model provides a live sampling device for cotton Verticillium wilt stems, comprising: a sampling machine body with a notch in the middle of the front end and a handle at the rear end; a live stem sampling mechanism located in the notch; a first stem positioning mechanism passing through the top of the sampling machine body; a second stem positioning mechanism passing through the bottom of the sampling machine body; and a positioning pull rod located at the handle.

[0006] The living stem sampling mechanism includes: a cutting rotary motor located at the top of the notch, a cutting shaft located at the bottom of the cutting rotary motor, and a sampling cutter located at one end of the cutting shaft;

[0007] The first and second stalk positioning mechanisms each include: a connecting rod that passes through the main body of the sampler and is connected to the positioning pull rod at the rear end, and a first stalk clamp arm and a second stalk clamp arm that are rotatably connected to the front end of the connecting rod via a movable ring (both the first and second stalk clamp arms are hinged to the front end of the connecting rod).

[0008] The top and bottom of the sampler body are respectively provided with through holes for the connecting rod to pass through, and the through holes extend from the front end of the sampler body to the rear end of the sampler body (the top through hole is penetrated by the connecting rod of the first stalk positioning mechanism and slides with it, and the bottom through hole is penetrated by the connecting rod of the second stalk positioning mechanism and slides with it).

[0009] The connecting rods of the No. 1 and No. 2 stalk positioning mechanisms are respectively fitted with clamping arm limiting rings; the clamping arm limiting rings are located on the front side of the sampler body; the outer ring of the clamping arm limiting ring and the side opposite to the notch are rotatably connected to the front end of a screw through a bearing, and the rear end of the screw is threadedly connected to the front end of the sampler body.

[0010] Preferably, the front end of the sampler body is provided with screw holes at the top and bottom for screw thread connection, and the screw holes are arranged parallel to the through holes (the top screw hole is inserted and threaded by the top screw, and the bottom screw hole is inserted and threaded by the bottom screw).

[0011] Preferably, a guide rod is fixedly connected to the outer ring of the clamping arm limiting ring on the side facing the notch, and the rear end of the guide rod is slidably connected to the front end of the sampler body.

[0012] Preferably, the front top and bottom of the sampler body are respectively provided with guide holes for sliding connection of guide rods, and the guide holes are arranged parallel to the through holes (the top guide hole is inserted into and slidably engaged with the top guide rod, and the bottom guide hole is inserted into and slidably engaged with the bottom guide rod).

[0013] Preferably, the first stem positioning mechanism and the second stem positioning mechanism are arranged symmetrically.

[0014] Preferably, the clamping arm limiting rings on the connecting rods of the first stem positioning mechanism and the second stem positioning mechanism are symmetrically arranged.

[0015] Preferably, the through holes at the top and bottom of the sampler body are symmetrically arranged.

[0016] Preferably, the screw holes at the top and bottom of the front end of the sampler body are symmetrically arranged.

[0017] Preferably, the guide holes at the top and bottom of the front end of the sampler body are symmetrically arranged.

[0018] Preferably, a screw head is also fixed at the front end of the screw.

[0019] The advantages and beneficial effects of this utility model are as follows: It provides a live sampling device for cotton Verticillium wilt stems, which can clamp the cotton stems with a first stem clamp arm and a second stem clamp arm, and then perform live sampling on the cotton stems; it can also adjust the starting position of the first stem clamp arm and the second stem clamp arm, so that when the first stem clamp arm and the second stem clamp arm tighten to clamp the cotton stem, the rotation radius of the sampling cutter is matched, so as to ensure that the size of the part cut by the sampling cutter when it rotates through the cotton stem is appropriate, avoiding the problems caused by cutting too little or too much (cutting too little will make it impossible to effectively analyze the actual disease condition of the cotton stem, and cutting too much will cause excessive damage to the cotton stem). Attached Figure Description

[0020] Figure 1 This is a side view of the present invention;

[0021] Figure 2 This is a top view schematic diagram of the No. 1 stem positioning mechanism. Detailed Implementation

[0022] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings and examples. The following examples are only used to more clearly illustrate the technical solution of this utility model and should not be construed as limiting the scope of protection of this utility model.

[0023] The specific technical solution of this utility model is as follows:

[0024] like Figure 1 and Figure 2 As shown, a live sampling device for cotton Verticillium wilt includes: a sampling machine body 1 with a notch 15 in the middle of the front end and a handle 16 at the rear end; a live sampling mechanism 2 for the stem in the notch 15; a first stem positioning mechanism 3 passing through the top of the sampling machine body 1; a second stem positioning mechanism 4 passing through the bottom of the sampling machine body 1; and a positioning pull rod 5 at the handle 16.

[0025] The living stem sampling mechanism 2 includes: a cutting rotary motor 7 located at the top of the notch 15, a cutting shaft 8 located at the bottom of the cutting rotary motor 7, and a sampling cutting blade 9 located at one end of the cutting shaft 8;

[0026] The first stem positioning mechanism 3 and the second stem positioning mechanism 4 each include: a connecting rod 10 that penetrates the main body 1 of the sampler and is connected to the positioning pull rod 5 at its rear end; and a first stem clamping arm 11 and a second stem clamping arm 12 that are rotatably connected to the front end of the connecting rod 10 via a movable ring 14 (both the first stem clamping arm 11 and the second stem clamping arm 12 are hinged to the front end of the connecting rod 10); the first stem positioning mechanism 3 and the second stem positioning mechanism 4 are symmetrically arranged;

[0027] The top and bottom of the sampler body 1 are respectively provided with through holes for the connecting rod 10 to pass through, and the through holes extend from the front end of the sampler body 1 to the rear end of the sampler body 1 (the top through hole is penetrated by the connecting rod 10 of the first stem positioning mechanism 3 and slidably engaged with it, and the bottom through hole is penetrated by the connecting rod 10 of the second stem positioning mechanism 4 and slidably engaged with it); the through holes at the top and bottom of the sampler body 1 are symmetrically arranged;

[0028] The connecting rods 10 of the first stalk positioning mechanism 3 and the second stalk positioning mechanism 4 are respectively fitted with clamping arm limiting rings 17 (the inner ring of the clamping arm limiting ring 17 is penetrated by the connecting rod 10); the clamping arm limiting ring 17 is located on the front side of the sampler body 1; the inner diameter of the clamping arm limiting ring 17 is smaller than the outer diameter of the ring formed by the first stalk clamping arm 11 and the second stalk clamping arm 12; the side of the outer ring of the clamping arm limiting ring 17 opposite to the notch 15 is rotatably connected to the front end of a screw 19 through a bearing 18 (the inner ring of the bearing 18 is fitted and fixed on the screw 19, and the outer ring of the bearing 18 is fixedly connected to the outer ring of the clamping arm limiting ring 17); the front end of the screw 19 is also provided with a turning head 20, and the rear end of the screw 19 is threadedly connected to the front end of the sampler body 1; a guide rod 21 is fixedly connected to the side of the outer ring of the clamping arm limiting ring 17 facing the notch 15, and the rear end of the guide rod 21 is slidably connected to the front end of the sampler body 1.

[0029] The front top and bottom of the sampler body 1 are respectively provided with screw holes for screw rod 19 to be threaded. The screw holes are arranged parallel to the through holes (the top screw hole is inserted and threaded by the top screw rod 19, and the bottom screw hole is inserted and threaded by the bottom screw rod 19); the screw holes at the front top and bottom of the sampler body 1 are symmetrically arranged.

[0030] The front top and bottom of the sampler body 1 are respectively provided with guide holes for sliding connection of guide rods 21. The guide holes are arranged parallel to the through holes (the top guide hole is inserted into and slidably engaged with the top guide rod 21, and the bottom guide hole is inserted into and slidably engaged with the bottom guide rod 21); the guide holes at the front top and bottom of the sampler body 1 are symmetrically arranged.

[0031] The working principle of this novel cotton Verticillium wilt disease stem live sampling device includes:

[0032] Normally, the sampling cutter 9 rotates within the notch 15. When performing live sampling of cotton stalks, first hold the handle 16 of the sampler body 1, and surround the cotton stalk with the first stem clamping arm 11 and the second stem clamping arm 12 of the first stem positioning mechanism 3 and the second stem positioning mechanism 4 (so that the cotton stalk is between the first stem clamping arm 11 and the second stem clamping arm 12). Then pull the positioning rod 5 backward. The positioning rod 5 drives the connecting rod 10 of the first stem positioning mechanism 3 and the second stem positioning mechanism 4 to move backward. The connecting rod 10 drives the first stem clamping arm 11 and the second stem clamping arm 12 to move backward and gradually approach the clamping arm limiting ring 17 on the front side of the sampler body 1 (the first stem clamping arm 11 and the second stem clamping arm 12 of the first stem positioning mechanism 3 move backward and gradually approach the top clamping arm limiting ring 17, and the first stem clamping arm 11 and the second stem clamping arm 12 of the second stem positioning mechanism 4 ... second stem positioning mechanism 3 move backward and gradually approach the top clamp The first stem clamping arm 11 and the second stem clamping arm 12 move backward and gradually approach the bottom clamping arm limiting ring 17, thereby tightening the first stem clamping arm 11 and the second stem clamping arm 12 through the clamping arm limiting ring 17 (the first stem clamping arm 11 and the second stem clamping arm 12 of the first stem positioning mechanism 3 are tightened through the top clamping arm limiting ring 17, and the first stem clamping arm 11 and the second stem clamping arm 12 of the second stem positioning mechanism 4 are tightened through the bottom clamping arm limiting ring 17), thus clamping the cotton stem with the first stem positioning mechanism 3 and the second stem positioning mechanism 4; then the cutter rotation motor 7 drives the cutter shaft 8 to rotate, and the cutter shaft 8 drives the sampling cutter 9 to rotate. When the sampling cutter 9 rotates and passes through the cotton stem, it cuts off part of the cotton stem, realizing the live sampling of the cotton stem;

[0033] Furthermore, the position of the clamping arm limiting ring 17 (i.e., the distance between the clamping arm limiting ring 17 and the front end of the sampler body 1) can be adjusted. When it is necessary to adjust the position of the clamping arm limiting ring 17, the screw 19 is rotated by the screw head 20, so that the screw 19 rotates and is further screwed into the screw hole or partially withdrawn from the screw hole. Then, the screw 19 drives the clamping arm limiting ring 17 to move closer to or away from the front end of the sampler body 1 through the bearing 18, thereby realizing the adjustment of the position of the clamping arm limiting ring 17.

[0034] Furthermore, as the clamping arm limiting ring 17 approaches or moves away from the front end of the sampler body 1, the guide rod 21 moves synchronously with the clamping arm limiting ring 17 in the guide hole. The guide rod 21 slides with the guide hole, which can guide the clamping arm limiting ring 17 to move stably and prevent the clamping arm limiting ring 17 from rotating.

[0035] During the process of clamping the cotton stalk, the No. 1 stalk clamping arm 11 and the No. 2 stalk clamping arm 12 need to be tightened by the clamping arm limiting ring 17. Since the position of the clamping arm limiting ring 17 (i.e., the distance between the clamping arm limiting ring 17 and the front end of the sampler body 1) can be adjusted, the starting position of the No. 1 stalk clamping arm 11 and the No. 2 stalk clamping arm 12 can be adjusted. Furthermore, the position of the clamping arm limiting ring 17 can be adjusted appropriately according to the actual situation so that when the No. 1 stalk clamping arm 11 and the No. 2 stalk clamping arm 12 tightens to clamp the cotton stalk, it matches the rotation radius of the sampling cutter 9. This ensures that the size of the part cut by the sampling cutter 9 when it rotates through the cotton stalk is appropriate, avoiding problems caused by cutting too little or too much (cutting too little will result in the inability to effectively analyze the actual condition of the cotton stalk, while cutting too much will cause excessive damage to the cotton stalk).

[0036] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A device for live sampling of cotton Verticillium wilt stems, comprising: The sampler body has a notch in the middle of the front end and a handle at the rear end. A stem sampling mechanism is located in the notch. A first stem positioning mechanism is inserted through the top of the sampler body, a second stem positioning mechanism is inserted through the bottom of the sampler body, and a positioning pull rod is located at the handle. The first and second stem positioning mechanisms each include: a connecting rod that penetrates the sampler body and is connected to the positioning pull rod at its rear end; and a first and second stem clamping arm, each rotatably connected to the front end of the connecting rod via a movable ring. The sampler body has through holes at the top and bottom for the connecting rod to pass through. Clamping arm limiting rings are fitted onto the connecting rods of the first and second stem positioning mechanisms. The clamping arm limiting rings are located on the front side of the sampler body. The outer ring of the clamping arm limiting ring, opposite to the notch, is rotatably connected to the front end of a screw via a bearing. The rear end of the screw is threadedly connected to the front end of the sampler body.

2. The cotton Verticillium wilt stalk live sampling device according to claim 1, characterized in that, The front top and bottom of the sampler body are respectively provided with screw holes for screw thread connection, and the screw holes are arranged parallel to the through holes.

3. The cotton Verticillium wilt stalk live sampling device according to claim 1, characterized in that, A guide rod is fixedly connected to the outer ring of the clamping arm limiting ring on the side facing the notch, and the rear end of the guide rod is slidably connected to the front end of the sampler body.

4. The cotton Verticillium wilt stalk live sampling device according to claim 3, characterized in that, The front top and bottom of the sampler body are respectively provided with guide holes for sliding connection of guide rods, and the guide holes are arranged parallel to the through holes.

5. The cotton Verticillium wilt stalk live sampling device according to claim 1, characterized in that, The No. 1 stem positioning mechanism and the No. 2 stem positioning mechanism are symmetrically arranged.

6. The cotton Verticillium wilt stalk live sampling device according to claim 1, characterized in that, The clamping arm limiting rings on the connecting rods of the No. 1 stem positioning mechanism and the No. 2 stem positioning mechanism are symmetrically arranged.

7. The cotton Verticillium wilt stalk live sampling device according to claim 1, characterized in that, The sampling machine body has symmetrically arranged through holes at the top and bottom.

8. The cotton Verticillium wilt stalk live sampling device according to claim 2, characterized in that, The screw holes at the top and bottom of the front end of the sampler body are symmetrically arranged.

9. The cotton Verticillium wilt stalk live sampling device according to claim 4, characterized in that, The guide holes at the top and bottom of the front end of the sampler body are symmetrically arranged.

10. The cotton Verticillium wilt stalk live sampling device according to claim 1, characterized in that, A screw head is also fixed at the front end of the screw.

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