Plant virus sample extraction device
By integrating cutting, pressing, and filtering functions, the plant virus sample extraction device solves the problems of low efficiency and high risk of contamination in traditional methods, and realizes automated processing and efficient and accurate sample extraction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-03-24
AI Technical Summary
Traditional plant virus sample extraction methods are inefficient, prone to introducing external contamination, affecting the accuracy of detection data, and are highly complex to operate.
Design a plant virus sample extraction device that integrates cutting, pressing and filtering functions. The sample is processed in a closed environment by hydraulically driven cutter and extrusion block, reducing the contact between the sample and the outside environment.
It automates sample cutting, pressing, and filtering, reducing the risk of sample contamination and improving detection efficiency and data accuracy.
Smart Images
Figure CN224030999U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to plant virus detection technical field, concretely relates to plant virus sample extraction device. BACKGROUND
[0002] Plant virus detection is an important link in modern agricultural scientific research and plant quarantine, and the accuracy of its detection results is directly related to disease prevention and control and agricultural production safety. In the detection process, sample extraction is one of the key steps, which usually requires grinding, squeezing or cutting of plant stems, leaves and other tissues to obtain juice containing viruses. However, the traditional sample extraction method has many shortcomings, which seriously affects the detection efficiency and the reliability of the results.
[0003] At present, the common plant virus sample extraction device depends on manual operation, such as manual grinding or using simple squeezing tools. These methods not only have low efficiency, but also increase the workload of the staff, and in the operation process, external pollution is easily introduced, which leads to cross infection or degradation of the sample, and further affects the accuracy of the detection data. In addition, the function of the traditional device is relatively single, which can usually only complete one of the cutting or squeezing links, and the sample still needs to be manually transferred, further increasing the operation complexity and the pollution risk. SUMMARY
[0004] The technical problem to be solved by the utility model is to provide a plant virus sample extraction device which can complete the cutting, squeezing and filtering of the sample in a closed environment, reducing the contact with the outside world and the probability of sample contamination.
[0005] The plant virus sample extraction device, comprising a sampling box, the sampling box is provided with a material channel, a feeding block is arranged in the material channel, the feeding block is matched with the material channel and is horizontally and slidingly connected, a feeding screw is arranged on the right side of the feeding block, the left end of the feeding screw is rotationally connected with the feeding block, and the right end of the feeding screw penetrates through the right wall of the sampling box and is threadedly connected with the right wall of the sampling box; the material channel is sequentially divided into a feeding part, a cutting part and a pressing part from right to left, the top of the feeding part is provided with a feeding port, and an upper cover is arranged on the feeding port; the cutting part is provided with a downward cutting knife at the upper part, the top of the cutting knife is fixedly connected with a cutting rod which slides upward and penetrates through the top wall of the cutting part and is fixedly connected with the output end of an up-down reciprocating movement mechanism, a knife receiving groove is arranged in the top of the cutting part and corresponds to the cutting knife, and the depth of the knife receiving groove is not less than the height of the cutting knife; a plurality of through holes are arranged on the bottom wall of the pressing part, a containing groove is arranged on the top wall of the pressing part, an extrusion block is movably arranged in the containing groove, an extrusion rod is fixedly connected with the top of the extrusion block, the extrusion rod slides upward and penetrates through the top wall of the pressing part and is fixedly connected with the output end of a second up-down reciprocating movement mechanism; and a slag outlet is arranged at the left end of the material channel, and a slag sealing block is movably arranged in the slag outlet.
[0006] Preferably, the upper cover includes a sealing block that fits into the feed inlet. When the sealing block is embedded in the feed inlet, the bottom surface of the sealing block is flush with the top wall of the feed section.
[0007] Preferably, a rotating handle is provided at the right end of the feed screw.
[0008] Preferably, both the first and second reciprocating motion mechanisms are vertically arranged hydraulic cylinders, and the output end of the reciprocating motion mechanism is the piston rod of the hydraulic cylinder.
[0009] Preferably, the bottom of the pressing section is provided with a collection trough, the bottom of the collection trough is connected to a guide pipe, the outer wall of the guide pipe is provided with external threads, and a filter screen is provided inside the guide pipe.
[0010] Preferably, it also includes a sampling tube, the inner wall of which is provided with an internal thread adapted to the external thread. When the sampling tube is connected to the guide tube, it is connected to the outer wall of the guide tube through the threaded connection between the inner wall of the sampling tube and the outer wall of the guide tube. When the sampling is completed and the sampling tube is unscrewed from the guide tube, liquid contamination of the outside of the guide tube can be avoided.
[0011] Preferably, the extrusion block fits into the receiving groove, and when the extrusion block is embedded in the receiving groove, the lower wall of the extrusion block is flush with the top wall of the pressing part.
[0012] Preferably, the slag discharge sealing block fits into the slag discharge port, and when the slag discharge sealing block is embedded in the slag discharge port, the right wall of the slag discharge sealing block is flush with the inner wall of the sampling box.
[0013] Preferably, both the top cover and the slag discharge block are equipped with handles.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. The plant sample is placed in the feeding section. The feeding screw is rotated to push the feeding block inward. The plant sample moves from right to left along the material channel. Driven by the first reciprocating motion mechanism, the cutter moves up and down. When the plant sample passes through the cutting section, the cutter cuts the plant sample. When the feeding block advances to the vicinity of the right side of the cutter, the first reciprocating motion mechanism is stopped, and the cutter is retracted into the receiving groove. The feeding block continues to advance to the left, pushing the plant sample to the pressing section and then stopping. The second reciprocating motion mechanism is started, driving the extrusion block to move up and down. Under the extrusion of the extrusion block and the bottom wall of the pressing section, the juice in the plant sample is squeezed out and flows down through the through hole. After extrusion, the extrusion block is collected in the receiving groove, and the plant sample residue can be pushed to the left by the feeding block and discharged from the slag outlet.
[0016] 2, the plant sample will be cut into smaller pieces and many cuts will appear, so that the juice of the plant sample is more easily pressed out, under the push of the feed block, the plant sample is first cut and then extruded, and finally discharged from the residue outlet, and the juice flows out from the through hole for collection, the sampling process of cutting, pressing and filtering is carried out in the sampling box, without transfer, reducing the contact with the outside world, reducing the probability of sample contamination. BRIEF DESCRIPTION OF DRAWINGS
[0017] Figure 1 is the external structure schematic diagram of the plant virus sample extraction device of the utility model;
[0018] Figure 2 is the internal structure schematic diagram of the plant virus sample extraction device of the utility model;
[0019] Figure 3 is the extrusion state structure schematic diagram of the plant virus sample extraction device of the utility model.
[0020] In the figure: 1, sampling box; 2, feed block; 3, feed screw; 4, feed part; 5, cutting part; 6, pressing part; 7, upper cover; 8, cutter; 9, cutting rod; 10, up-down reciprocating mechanism one; 11, cutter collecting groove; 12, through hole; 13, accommodating groove; 14, extrusion block; 15, extrusion rod; 16, up-down reciprocating mechanism two; 17, residue discharge sealing block; 18, sealing block; 19, rotating handle; 20, collecting groove; 21, flow guide pipe; 22, sampling tube; 23, handle; 24, pipe cap. DETAILED DESCRIPTION
[0021] The utility model will be described clearly and completely in combination with the drawings.
[0022] As Figure 1 , Figure 2As shown, the plant virus sample extraction device comprises a sampling box 1, the sampling box 1 is provided with a material channel, the material channel is provided with a feeding block 2, the feeding block 2 is matched with the material channel and is horizontally and slidingly connected, the right side of the feeding block 2 is provided with a feeding screw 3, the left end of the feeding screw 3 is rotationally connected with the feeding block 2, and the right end of the feeding screw 3 penetrates through the right wall of the sampling box 1 and is threadedly connected with the right wall of the sampling box 1; the material channel is sequentially divided into a feeding part 4, a cutting part 5 and a pressing part 6 from right to left, the top of the feeding part 4 is provided with a feeding port, and the feeding port is provided with an upper cover 7; the cutting part 5 is provided with a downward cutting knife 8 at the upper portion, the cutting knife 8 is fixedly provided with a cutting rod 9 at the top, the cutting rod 9 is slidingly connected with the upper and lower reciprocating mechanism one 10 output end and penetrates through the top wall of the cutting part 5, a knife receiving groove 11 is formed in the top of the cutting part 5 and corresponds to the cutting knife 8, and the depth of the knife receiving groove 11 is not less than the height of the cutting knife 8; a plurality of through holes 12 are formed in the bottom wall of the pressing part 6, a containing groove 13 is formed in the top wall of the pressing part 6, and a pressing block 14 is movably embedded in the containing groove 13; the top of the pressing block 14 is fixedly provided with a pressing rod 15, the pressing rod 15 is slidingly connected with the upper and lower reciprocating mechanism two 16 output end and penetrates through the top wall of the pressing part 6; a slag outlet is formed in the left end of the material channel, and a slag sealing block 17 is movably embedded in the slag outlet.
[0023] The upper cover 7 comprises a blocking block 18, the blocking block 18 is matched with the feeding port, and when the blocking block 18 is embedded in the feeding port, the lower bottom surface of the blocking block 18 is flush with the top wall of the feeding part 4.
[0024] The right end of the feeding screw 3 is provided with a rotating handle 19.
[0025] The upper and lower reciprocating mechanism one 10 and the upper and lower reciprocating mechanism two 16 are both vertically arranged hydraulic cylinders, and the output ends of the upper and lower reciprocating mechanisms are piston rods of the hydraulic cylinders.
[0026] The bottom of the pressing part 6 is provided with a collecting groove 20, the bottom of the collecting groove 20 is communicated with a flow guide pipe 21, the outer wall of the flow guide pipe 21 is provided with external threads, and the flow guide pipe 21 is provided with a filter screen.
[0027] Further comprising a sampling tube 22, and the inner wall of the sampling tube 22 is provided with internal threads matched with the external threads.
[0028] The pressing block 14 is matched with the containing groove 13, and when the pressing block 14 is embedded in the containing groove 13, the lower wall of the pressing block 14 is flush with the top wall of the pressing part 6.
[0029] The slag sealing block 17 is matched with the slag outlet, and when the slag sealing block 17 is embedded in the slag outlet, the right wall of the slag sealing block 17 is flush with the inner wall of the sampling box 1.
[0030] Handles 23 are arranged on the upper cover 7 and the slag sealing block 17.
[0031] The working process is as follows: Open the upper cover 7, put the plant sample into the feed section 4 through the feed inlet, close the upper cover 7 so that the sealing block 18 is placed inside the feed inlet, as shown. Figure 2 As shown, the hydraulic cylinder of the reciprocating motion mechanism 10 is activated, driving the cutter 8 to move up and down. Rotating the handle 19 causes the feed screw 3 to rotate. The feed screw 3 rotates to the left on the right wall of the sampling box 1, pushing the feed block 2 to the left, and thus pushing the plant sample towards the cutting section 5. When the plant sample passes through the cutting section 5, it is cut by the up-and-down moving cutter 8, as shown. Figure 3 As shown, when the feed block 2 is pushed to the right side of the cutter 8 (a mark can be made at the corresponding position on the feed screw 3 to determine if it has reached the right side of the cutter 8), stop rotating the handle 19. The hydraulic cylinder of the reciprocating motion mechanism 10 stops running and retracts the cutter 8 into the receiving groove 11. At this time, the handle 19 can be rotated again, and the feed block 2 continues to push the plant sample to the left into the pressing section 6. When the feed block 2 runs to the left side wall close to the right side wall of the extrusion block 14 (a mark can be made at the corresponding position on the feed screw 3 for easy position determination), stop. Rotate the handle 19 to activate the hydraulic cylinder of the reciprocating motion mechanism 16. The pressing block 14 presses down and works together with the bottom wall of the pressing part 6 to force the juice from the plant sample out. The juice flows from the through hole 12 into the collection tank 20, is filtered through the filter screen in the guide tube 21, and then flows into the sampling tube 22, which is threadedly connected to the guide tube 21. After the juice is collected, unscrew the sampling tube 22 and cover it with the tube cap 24. The inner wall of the tube cap 24 and the outer wall of the sampling tube 22 can be threaded to increase the sealing and prevent the sample from spilling out or being contaminated.
Claims
1. A plant virus sample extraction device, characterized in that, The sample box (1) is provided with a material channel. A feeding block (2) is provided in the material channel. The feeding block (2) fits into the material channel and is horizontally slidably connected. A feeding screw (3) is provided on the right side of the feeding block (2). The left end of the feeding screw (3) is rotatably connected to the feeding block (2). The right end of the feeding screw (3) passes through the right wall of the sample box (1) and is threadedly connected to the right wall of the sample box (1). The material channel is divided into a feeding section (4), a cutting section (5) and a pressing section (6) from right to left. The feeding section (4) is provided with a feeding port at the top and an upper cover (7) on the feeding port. The cutting section (5) is provided with a downward-facing cutter (8) at the top. A cutting rod (9) is fixed at the top of the cutter (8). The cutting rod (9) is upward-facing. The material slides through the top wall of the cutting section (5) and is fixedly connected to the output end of the reciprocating motion mechanism (10). The top of the cutting section (5) is provided with a receiving groove (11) corresponding to the cutter (8). The depth of the receiving groove (11) is not less than the height of the cutter (8). The bottom wall of the pressing section (6) is provided with several through holes (12). The top wall of the pressing section (6) is provided with a receiving groove (13). The receiving groove (13) is movably embedded in the receiving groove (14). The top of the pressing block (14) is fixed with a pressing rod (15). The pressing rod (15) slides upward through the top wall of the pressing section (6) and is fixedly connected to the output end of the reciprocating motion mechanism (16). The left end of the material channel is provided with a slag outlet. The slag outlet is movably embedded in the slag outlet.
2. The plant virus sample extraction device according to claim 1, characterized in that, The upper cover (7) includes a sealing block (18), which fits into the feed inlet. When the sealing block (18) is embedded in the feed inlet, the bottom surface of the sealing block (18) is flush with the top wall of the feed section (4).
3. The plant virus sample extraction device according to claim 1, characterized in that, The feed screw (3) has a rotating handle (19) on its right end.
4. The plant virus sample extraction device according to claim 1, characterized in that, Both the first (10) and the second (16) reciprocating motion mechanism are vertically arranged hydraulic cylinders, and the output end of the reciprocating motion mechanism is the piston rod of the hydraulic cylinder.
5. The plant virus sample extraction device according to claim 1, characterized in that, The bottom of the pressing part (6) is provided with a collection trough (20), and the bottom of the collection trough (20) is connected to a guide pipe (21). The outer wall of the guide pipe (21) is provided with external threads, and a filter screen is provided inside the guide pipe (21).
6. The plant virus sample extraction device according to claim 5, characterized in that, It also includes a sampling tube (22), the inner wall of which is provided with an internal thread that is compatible with the external thread.
7. The plant virus sample extraction device according to claim 1, characterized in that, The extrusion block (14) fits into the receiving groove (13). When the extrusion block (14) is embedded in the receiving groove (13), the lower wall of the extrusion block (14) is flush with the top wall of the pressing part (6).
8. The plant virus sample extraction device according to claim 1, characterized in that, The slag discharge sealing block (17) fits into the slag discharge port. When the slag discharge sealing block (17) is embedded in the slag discharge port, the right wall of the slag discharge sealing block (17) is flush with the inner wall of the sampling box (1).
9. The plant virus sample extraction device according to claim 1, characterized in that, Both the top cover (7) and the slag discharge block (17) are equipped with handles (23).