An adjustable sampling device

Abstract

The utility model discloses an adjustable sampling device relates to the technical field of pesticide residue detection, including dropper, the surface of dropper is provided with open and close mechanism, the surface of open and close mechanism is provided with extrusion mechanism. The utility model discloses a position of adjusting cylinder is adjusted according to sample amount, makes to the bottom end juice hole is shielded, and the limiting block is along the sliding slot sliding, when determining height, the knob is twisted and makes its bottom end push limiting block and is clamped in the gap between the card station and completes fixed, and the fixed link is oriented to the limiting block, when electric telescopic link pushes the pressure plate and displaces downward, sample is extruded, makes that juice is squeezed out, and the residue is extruded through the pressure plate, prevents the removal, and the juice is discharged through the unblocked juice hole, even if there is the broken residue separated from the main body, also will sink because of the weight reason, and the lower end juice hole is blocked, makes the residue unable to follow the juice and discharge.

Description

Technical Field

[0001] This utility model relates to the field of pesticide residue detection technology, specifically to an adjustable sampling device. Background Technology

[0002] The development of agricultural industrialization has made agricultural production increasingly reliant on exogenous substances such as pesticides, antibiotics, and hormones. The unreasonable use of these substances will inevitably lead to excessive pesticide residues in agricultural products, affecting consumer safety. In severe cases, it can cause illness, abnormal development, or even direct poisoning and death in consumers.

[0003] Patent publication number CN218674356U discloses a sampling device for detecting pesticide residues in agricultural products, including a circular tube. Springs are fixedly connected to both sides of the top of the inner cavity of the circular tube. A movable plate is fixedly connected to the bottom of the springs. A sealing gasket is sleeved on the surface of the movable plate. Slider blocks are fixedly connected to both sides of the sealing gasket. Sliding grooves adapted to the sliders are opened at the axial center of both sides of the inner cavity of the circular tube.

[0004] To address the issue of inconvenient cleaning, existing technology employs a combination of components including a circular tube, spring, movable plate, sealing gasket, slider, chute, movable rod, water tank, water outlet pipe, micro pressure pump, connecting pipe, housing, air inlet pipe, micro fan, air outlet pipe, air inlet, first ventilation hole, second ventilation hole, third ventilation hole, and sealing tube. This allows for the thorough cleaning of pesticide residues left inside the circular tube from previous sampling through washing and drying, resulting in purer pesticide samples and more accurate test results. However, a problem still exists where sample residues mix with the juice during extraction, potentially reducing the accuracy of the test results. Utility Model Content

[0005] The purpose of this invention is to provide an adjustable sampling device to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] An adjustable sampling device includes a dropper, the surface of which is provided with an opening and closing mechanism, and the surface of which is provided with a squeezing mechanism.

[0008] The extrusion mechanism includes a connecting ring movably connected to the surface of the extrusion mechanism. A protrusion is fixedly connected to the surface of the connecting ring, and a rubber washer is fixedly connected to the surface of the connecting ring. A cylinder is fixedly connected to the bottom end of the connecting ring. Drainage holes are evenly distributed on the surface of the cylinder. A groove is provided on the surface of the drainage holes. A locking platform is fixedly connected to the surface of the groove. Multiple sets of locking platforms are provided and are evenly distributed on the surface of the groove.

[0009] A further improvement of this utility model is that: an adjusting cylinder is movably connected to the surface of the cylinder body, a knob is threadedly connected to the surface of the adjusting cylinder, a limiting block is movably connected to one end of the knob, the limiting block is adapted to the clamping platform, a fixing rod is fixedly connected to the surface of the limiting block, and the fixing rod is movably connected to the surface of the knob.

[0010] A further improvement of the present invention is that the extrusion mechanism further includes an upper cover plate, which is movably connected to the surface of the opening and closing mechanism. A boss is fixedly connected to the surface of the upper cover plate, and an electric telescopic rod is fixedly connected to the surface of the upper cover plate. The telescopic end of the electric telescopic rod passes through the upper cover plate, and a pressure plate is fixedly connected to the telescopic end of the electric telescopic rod.

[0011] A further improvement of the present invention is that: a plug is fixedly connected to the bottom end of the boss, a locking block is movably connected inside the plug, two sets of locking blocks are provided, the locking blocks are symmetrically distributed inside the plug, and a spring is fixedly connected to the surface of the locking block.

[0012] A further improvement of the present invention is that the opening and closing mechanism includes an upper fixing ring, which is movably connected to the surface of the upper cover plate. The surface of the upper fixing ring is provided with a groove, which is adapted to the protrusion. The surface of the upper fixing ring is provided with a connecting groove, which is adapted to the insert block. The bottom end of the upper fixing ring is fixedly connected to an outer cylinder.

[0013] A further improvement of the present invention is that: a first connecting hole is provided at the bottom end of the outer cylinder, a threaded seat is fixedly connected to the bottom end of the outer cylinder, a rotating seat is movably connected to the surface of the outer cylinder, a second connecting hole is provided on the surface of the rotating seat, and a sleeve hole is provided on the surface of the rotating seat.

[0014] A further improvement of the present invention is that the opening and closing mechanism further includes a threaded connecting column, which is threadedly connected to the surface of the threaded seat. A support frame is fixedly connected to the bottom end of the threaded connecting column, and a liquid storage cylinder is fixedly connected to the surface of the support frame. The liquid storage cylinder is movably connected to the bottom end of the rotating seat and is fixedly connected to the surface of the dropper.

[0015] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0016] 1. This utility model provides an adjustable sampling device, which employs a combination of an upper cover plate, a boss, an insert block, an electric telescopic rod, a pressure plate, a connecting ring, a boss, a rubber gasket, a cylinder, a drain hole, a slide groove, a locking platform, an adjusting cylinder, a knob, a limiting block, a fixing rod, a locking block, and a spring. By placing the sample in the cylinder and adjusting the position of the adjusting cylinder according to the sample volume, the drain hole at the bottom is blocked. At the same time, the limiting block slides along the slide groove. When the height is determined, turning the knob pushes the bottom end of the limiting block into the gap between the locking platforms to complete the fixation. The fixing rod guides the limiting block and aligns the boss on the surface of the connecting ring with the groove on the surface of the upper fixing ring. This design secures the cylinder. When the insert block at the bottom of the boss is inserted into the connecting groove, the locking block contacts the connecting groove and is squeezed inward, retracting into the insert block. At the same time, the spring is compressed until the insert block is fully inserted. The spring then rebounds and pushes the locking block to lock in place, completing the fixation. At this time, the rubber gasket cooperates with the upper cover plate to prevent liquid leakage. When the electric telescopic rod pushes the pressure plate downward, the sample is squeezed, causing the juice to be squeezed out. The residue is squeezed by the pressure plate to prevent movement, and the juice is discharged through the unobstructed drain hole. Even if there are broken residues separated from the main body, they will sink due to their weight. The drain hole at the bottom is blocked, preventing the residues from being discharged with the juice, thus improving the adaptability of the device.

[0017] 2. This utility model provides an adjustable sampling device, which adopts the cooperation of an outer cylinder, an upper fixing ring, a connecting groove, a threaded seat, a first connecting hole, a rotating seat, a second connecting hole, a sleeve hole, a threaded connecting column, a support frame, and a storage cylinder. Anti-leakage gaskets are set at all connections of the device. The groove on the surface of the upper fixing ring connects to the connecting groove and the squeezing mechanism. In use, the prepared mixed solution is placed in the storage cylinder, and the threaded connecting column on the surface of the support frame passes through the sleeve hole and connects to the threaded seat. When the squeezing mechanism extracts the juice, the juice flows into the outer cylinder. During testing, rotating the rotating seat causes the first connecting hole and the second connecting hole to coincide, allowing the juice to enter the storage cylinder and mix with the solution. During testing, turning the valve on the surface of the dropper allows for quantitative dripping of the mixed solution, thus improving the adaptability of the device. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the extrusion mechanism of this utility model;

[0020] Figure 3 This is a partially enlarged structural diagram of part A of this utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the card block of this utility model;

[0022] Figure 5This is a schematic diagram of the opening and closing mechanism of this utility model.

[0023] In the diagram: 1. Dropper; 2. Extrusion mechanism; 201. Top cover plate; 202. Boss; 203. Insert block; 204. Electric telescopic rod; 205. Pressure plate; 206. Connecting ring; 207. Protrusion; 208. Rubber washer; 209. Cylinder; 210. Drain hole; 211. Slide groove; 212. Locking platform; 213. Adjusting cylinder; 214. Knob; 215. Limiting block; 216. Fixing rod; 217. Locking block; 218. Spring; 3. Opening and closing mechanism; 301. Outer cylinder; 302. Upper fixing ring; 303. Connecting groove; 304. Threaded seat; 305. First connecting hole; 306. Rotating seat; 307. Second connecting hole; 308. Sleeve hole; 309. Threaded connecting column; 310. Support frame; 311. Liquid storage cylinder. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to embodiments:

[0025] Example 1

[0026] like Figures 1-5 As shown, this utility model provides an adjustable sampling device, including a dropper 1. An opening and closing mechanism 3 is provided on the surface of the dropper 1. A squeezing mechanism 2 is provided on the surface of the opening and closing mechanism 3. The squeezing mechanism 2 includes a connecting ring 206, which is movably connected to the surface of the squeezing mechanism 2. A protrusion 207 is fixedly connected to the surface of the connecting ring 206. A rubber washer 208 is fixedly connected to the surface of the connecting ring 206. A cylinder 209 is fixedly connected to the bottom end of the connecting ring 206. Drainage holes 210 are evenly distributed on the surface of the cylinder 209. A groove 211 is provided on the surface of the drainage holes 210. A locking platform 212 is fixedly connected to the surface of the groove 211. Multiple sets of locking platforms 212 are evenly distributed on the surface of the groove 211. An adjusting cylinder 213 is movably connected to the surface of the cylinder 209. A knob 214 is threadedly connected to the surface of the adjusting cylinder 213. One end of knob 214 is movably connected to a limiting block 215, which is adapted to the locking platform 212. A fixing rod 216 is fixedly connected to the surface of the limiting block 215. The fixing rod 216 is movably connected to the surface of knob 214. The pressing mechanism 2 also includes an upper cover plate 201, which is movably connected to the surface of the opening and closing mechanism 3. A boss 202 is fixedly connected to the surface of the upper cover plate 201. An electric telescopic rod 204 is fixedly connected to the surface of the upper cover plate 201. The telescopic end of the electric telescopic rod 204 passes through the upper cover plate 201. A pressure plate 205 is fixedly connected to the telescopic end of the electric telescopic rod 204. An insert block 203 is fixedly connected to the bottom end of the boss 202. A locking block 217 is movably connected inside the insert block 203. Two sets of locking blocks 217 are provided and symmetrically distributed inside the insert block 203. A spring 218 is fixedly connected to the surface of the locking block 217.

[0027] In this embodiment, by placing the test sample inside the cylinder 209, the position of the adjusting cylinder 213 is adjusted according to the sample volume to block the bottom drain hole 210. Simultaneously, the limiting block 215 slides along the slide groove 211. When the height is determined, the knob 214 is turned so that its bottom end pushes the limiting block 215 into the gap between the locking platforms 212, thus completing the fixation. The fixing rod 216 guides the limiting block 215 and aligns the protrusion 207 on the surface of the connecting ring 206 with the groove on the surface of the upper fixing ring 302, thus fixing the cylinder 209. When the insert block 203 at the bottom of the protrusion 202 is inserted into the connecting groove 303, the locking block 217 contacts the connecting groove 303. 3. When compressed, the sample retracts into the insert 203, while the spring 218 is compressed until the insert 203 is fully inserted. The spring 218 rebounds and pushes the locking block 217 to lock and fix the sample. At this time, the rubber gasket 208 cooperates with the upper cover plate 201 to prevent liquid leakage. When the electric telescopic rod 204 pushes the pressure plate 205 downward, the sample is squeezed, causing the juice to be squeezed out. The residue is squeezed by the pressure plate 205 to prevent movement, and the juice is discharged through the unobstructed drain hole 210. Even if there are broken residues separated from the main body, they will sink due to their weight. The drain hole 210 at the lower end is blocked, so that the residues cannot be discharged with the juice, which improves the adaptability of the device.

[0028] Example 2

[0029] like Figures 1-5 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the opening and closing mechanism 3 includes an upper fixing ring 302, which is movably connected to the surface of the upper cover plate 201. The surface of the upper fixing ring 302 is provided with a groove, which is adapted to the protrusion 207. The surface of the upper fixing ring 302 is provided with a connecting groove 303, which is adapted to the insert block 203. The bottom end of the upper fixing ring 302 is fixedly connected to an outer cylinder 301, and the bottom end of the outer cylinder 301 is provided with a first connecting hole 305. A threaded seat 304 is fixedly connected to the outer cylinder 301, and a rotating seat 306 is movably connected to the surface of the outer cylinder 301. A second connecting hole 307 is provided on the surface of the rotating seat 306, and a sleeve hole 308 is provided on the surface of the rotating seat 306. The opening and closing mechanism 3 also includes a threaded connecting post 309, which is threadedly connected to the surface of the threaded seat 304. A support frame 310 is fixedly connected to the bottom end of the threaded connecting post 309. A liquid storage cylinder 311 is fixedly connected to the surface of the support frame 310. The liquid storage cylinder 311 is movably connected to the bottom end of the rotating seat 306 and is fixedly connected to the surface of the dropper 1.

[0030] In this embodiment, anti-seepage gaskets are provided at all connection points of the device. The groove on the surface of the upper fixing ring 302 is connected to the connecting groove 303 and the squeezing mechanism 2. In use, the prepared mixed solution is placed in the storage cylinder 311, and the threaded connecting post 309 on the surface of the support frame 310 is connected to the threaded seat 304 through the sleeve hole 308. When the squeezing mechanism 2 squeezes out the juice, the juice flows into the outer cylinder 301. During testing, the first connecting hole 305 and the second connecting hole 307 are made to coincide by rotating the rotating seat 306, and the juice enters the storage cylinder 311 and mixes with the solution. During testing, the valve on the surface of the dropper 1 is turned to make it drip out quantitatively to test the mixed solution, which improves the adaptability of the device.

[0031] The working principle of this adjustable sampling device will be explained in detail below.

[0032] like Figures 1-5 As shown, by setting anti-leakage gaskets at all connections of the device, the groove on the surface of the upper fixing ring 302 is connected to the connecting groove 303 and the extrusion mechanism 2. In use, the prepared mixed solution is placed in the storage cylinder 311, the threaded connecting post 309 on the surface of the support frame 310 is passed through the sleeve hole 308 and connected to the threaded seat 304, the test sample is placed in the cylinder 209, and the position of the adjusting cylinder 213 is adjusted according to the sample volume to block the bottom drain hole 210. At the same time, the limiting block 215 moves along the sliding groove 2. 11. Sliding: When the height is determined, turn knob 214 so that its bottom end pushes the limiting block 215 into the gap between the locking platform 212 to complete the fixation. The fixing rod 216 guides the limiting block 215 and aligns the protrusion 207 on the surface of the connecting ring 206 with the groove on the surface of the upper fixing ring 302, thus fixing the cylinder 209. When the insert block 203 at the bottom of the protrusion 202 is inserted into the connecting groove 303, the locking block 217 contacts the connecting groove 303 and is squeezed into the insert block 203. At the same time, the spring 21... 8. Compress until the insert 203 is fully inserted. The spring 218 rebounds and pushes the locking block 217 to lock in place. At this time, the rubber gasket 208 cooperates with the upper cover plate 201 to prevent liquid leakage. When the electric telescopic rod 204 pushes the pressure plate 205 downward, the sample is squeezed, causing the juice to be squeezed out. The residue is squeezed by the pressure plate 205 to prevent movement, and the juice is discharged through the unobstructed drain hole 210. Even if there are broken residues separated from the main body, they will sink due to weight. The lower drain hole 210... 10 is blocked, preventing the residue from being discharged with the juice. The juice flows into the outer cylinder 301. During testing, the first connecting hole 305 and the second connecting hole 307 are aligned by rotating the rotating seat 306. The juice enters the storage cylinder 311 and mixes with the solution. During testing, the valve on the surface of the dropper 1 is turned to make it drip out quantitatively, and the mixed solution can be tested. All parts of the device can be disassembled, making cleaning thorough. Its small size makes it portable for both laboratory and outdoor testing, improving the adaptability of the device.

[0033] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. An adjustable sampling device, comprising a dropper (1), characterized in that: The surface of the dropper (1) is provided with an opening and closing mechanism (3), and the surface of the opening and closing mechanism (3) is provided with a squeezing mechanism (2). The extrusion mechanism (2) includes a connecting ring (206), which is movably connected to the surface of the extrusion mechanism (2). A protrusion (207) is fixedly connected to the surface of the connecting ring (206), and a rubber gasket (208) is fixedly connected to the surface of the connecting ring (206). A cylinder (209) is fixedly connected to the bottom end of the connecting ring (206). Drainage holes (210) are evenly distributed on the surface of the cylinder (209). A groove (211) is provided on the surface of the drainage holes (210). A locking platform (212) is fixedly connected to the surface of the groove (211). Multiple sets of locking platforms (212) are provided, and the locking platforms (212) are evenly distributed on the surface of the groove (211).

2. The adjustable sampling device according to claim 1, characterized in that: An adjusting cylinder (213) is movably connected to the surface of the cylinder (209). A knob (214) is threadedly connected to the surface of the adjusting cylinder (213). A limit block (215) is movably connected to one end of the knob (214). The limit block (215) is adapted to the mounting plate (212). A fixing rod (216) is fixedly connected to the surface of the limit block (215). The fixing rod (216) is movably connected to the surface of the knob (214).

3. The adjustable sampling device according to claim 1, characterized in that: The extrusion mechanism (2) further includes an upper cover plate (201), which is movably connected to the surface of the opening and closing mechanism (3). A boss (202) is fixedly connected to the surface of the upper cover plate (201), and an electric telescopic rod (204) is fixedly connected to the surface of the upper cover plate (201). The telescopic end of the electric telescopic rod (204) passes through the upper cover plate (201), and a pressure plate (205) is fixedly connected to the telescopic end of the electric telescopic rod (204).

4. The adjustable sampling device according to claim 3, characterized in that: The bottom end of the boss (202) is fixedly connected to the insert block (203), and the insert block (203) is movably connected to the inside of the insert block (203). There are two sets of the insert blocks (217), which are symmetrically distributed inside the insert block (203). The surface of the insert block (217) is fixedly connected to the spring (218).

5. An adjustable sampling device according to claim 1, characterized in that: The opening and closing mechanism (3) includes an upper fixing ring (302), which is movably connected to the surface of the upper cover plate (201). The surface of the upper fixing ring (302) is provided with a groove, which is adapted to the protrusion (207). The surface of the upper fixing ring (302) is provided with a connecting groove (303), which is adapted to the insert block (203). The bottom end of the upper fixing ring (302) is fixedly connected to the outer cylinder (301).

6. An adjustable sampling device according to claim 5, characterized in that: The bottom end of the outer cylinder (301) is provided with a first connecting hole (305), the bottom end of the outer cylinder (301) is fixedly connected with a threaded seat (304), the surface of the outer cylinder (301) is movably connected with a rotating seat (306), the surface of the rotating seat (306) is provided with a second connecting hole (307), and the surface of the rotating seat (306) is provided with a sleeve hole (308).

7. An adjustable sampling device according to claim 6, characterized in that: The opening and closing mechanism (3) also includes a threaded connecting column (309), which is threadedly connected to the surface of the threaded seat (304). A support frame (310) is fixedly connected to the bottom end of the threaded connecting column (309). A liquid storage cylinder (311) is fixedly connected to the surface of the support frame (310). The liquid storage cylinder (311) is movably connected to the bottom end of the rotating seat (306). The liquid storage cylinder (311) is fixedly connected to the surface of the dropper (1).

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