A sampling tool for grain and oil detection

Abstract

The utility model discloses a kind of sampling tools for grain and oil detection, including sampling cylinder, the suction mechanism is set on sampling cylinder, the suction mechanism includes piston slidingly connected in the inside of sampling cylinder, piston upper end middle is fixedly connected with pull rod, pull rod is penetrated in the middle of pipe cap, pull rod upper end is fixedly connected with push-pull plate, the sealing mechanism is set in suction tube lower end, the sealing mechanism includes detachable screw connection in the lower end of suction tube with sealing cap, sealing cap inside lower end is fixedly connected with sealing ring, the limiting mechanism is set on bracket.The utility model has the advantages compared with prior art: after sampling is completed, sealing cap is screw connected in the lower end of suction tube to seal, sample is stored in the inside of sampling cylinder, sampling cylinder is completed sampling and storage simultaneously, so that sampling procedure is more concise, convenient to operate.

Description

Technical Field

[0001] This utility model relates to the field of food inspection technology, specifically to a sampling tool for grain and oil testing. Background Technology

[0002] The quality and safety of grains and oils are related to the food safety of the general public. Therefore, it is necessary to strictly control their quality, conduct sampling tests on grains and oils, and then conduct quality tests on the samples to roughly assess the quality of the corresponding grains and oils.

[0003] The quantitative sampler described in announcement number CN220552648U belongs to the field of sampler technology. The quantitative sampler includes: a sampling cylinder for storing grain and oil samples; a piston for creating negative pressure within the sampling cylinder to extract the grain and oil samples; a pull rod for easy movement of the piston by the operator; and a quantitative mechanism for quantitatively extracting the grain and oil samples. The quantitative mechanism includes two mounting rods fixedly connected to both sides of the pull rod. A limiting ring is sleeved on the outer side of the pull rod. Baffles for blocking the limiting ring are provided on both sides of the top of the sampling cylinder. A slot is formed through both sides of the top of the limiting ring, and the mounting rods are located within the slot. By setting the quantitative mechanism, the movement distance of the piston can be limited, ensuring that the piston can no longer move after moving a certain distance. This guarantees that a certain amount of grain and oil sample is extracted each time, preventing excessive extraction. However, the existing technology still has shortcomings.

[0004] 1. In the existing technology, a threaded rod is used to fix the limiting ring in a suitable position on the mounting frame to determine the amount of grain and oil to be extracted. During use, the position of the limiting ring needs to be adjusted as needed, which is not convenient in actual use.

[0005] 2. In the existing technology, pulling the pull plate upwards causes the pull rod and piston to move, thereby creating a negative pressure inside the sampling cylinder and drawing the grain and oil into the sampling cylinder. However, this cannot stably preserve the grain and oil inside the sampling cylinder. The sampling cylinder only completes the sampling function, and the sample still needs to be transferred to an additional device for sample preservation. When the sampling cylinder is used for sampling again, it needs to be cleaned or discarded and replaced with a new one. Therefore, sampling will cause waste and the sampling operation is inconvenient. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the above-mentioned defects and provide a sampling tool for grain and oil testing.

[0007] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: a sampling tool for grain and oil testing, comprising:

[0008] A sampling cylinder, wherein a suction tube is provided at the lower end of the sampling cylinder;

[0009] A tube cap is threadedly connected to the upper end of the sampling cylinder;

[0010] An aspiration mechanism is provided on a sampling cylinder. The aspiration mechanism includes a piston that is slidably connected to the inside of the sampling cylinder. A pull rod is fixedly connected to the middle of the upper end of the piston. The pull rod passes through the middle of the tube cap. A push-pull plate is fixedly connected to the upper end of the pull rod.

[0011] An extension tube, which is detachably threaded to the lower end of the suction tube;

[0012] A sealing mechanism is provided at the lower end of the suction tube. The sealing mechanism includes a sealing cap that is detachably threaded to the lower end of the suction tube, and a sealing ring is fixedly connected to the lower end of the sealing cap.

[0013] A bracket, which is fixedly connected to the upper end of the pipe cap, and a tie rod that passes through the upper end of the bracket;

[0014] A limiting mechanism is provided on a bracket. The limiting mechanism includes several evenly distributed locking seats fixedly connected to both ends of the inner side of the bracket from top to bottom. A locking groove is provided in the middle of the front end of each locking seat.

[0015] A locking mechanism is provided on the pull rod. The locking mechanism includes a fixed plate that is fixedly sleeved in the middle of the pull rod. Limiting plates are fixedly connected to both sides of the lower end of the fixed plate. Connecting seats are fixedly connected to the front and rear ends of the fixed plate. Insertion blocks are fixedly connected to the rear end of the front connecting seat and the front end of the rear connecting seat. The upper and lower sides of the end of the insertion block away from the connecting seat are provided with locking plates.

[0016] As an improvement, a scale is provided at the center of the front end of the sampling tube.

[0017] As an improvement, the plug-in block is inserted into the slot, and a limiting protrusion is provided on the side of the upper and lower plates that are far apart from each other. The limiting protrusion is engaged with the upper and lower ends of one side of the plug-in seat.

[0018] As an improvement, the upper end of the cap is provided with several evenly distributed ventilation holes.

[0019] The advantages of this utility model compared with the prior art are as follows: 1. In this utility model, after observing the sampling according to the scale and stopping at the required scale, it can be slightly higher than the sampling scale to ensure that the required scale sample is still left inside the sampling tube during subsequent operations. Then, the pull rod is rotated to drive the fixed plate to rotate. The rotation of the fixed plate causes the upper end of the limiting plate to contact the lower end of the snap-fit ​​seat. If the height of the limiting plate is slightly high, the pull rod can be pushed down so that the limiting plate can rotate to the lower end of the snap-fit ​​seat. At the same time, the plug block is inserted into the slot. Then, the limiting protrusions on the upper and lower end snap-fit ​​onto the upper and lower ends of one side of the snap-fit ​​seat to fix the position of the pull rod and determine the amount of sampling. The operation is more convenient, and only the pull rod needs to be rotated.

[0020] 2. In this utility model, after the height of the pull rod is fixed, the sealing cap also seals the lower end of the suction tube. At this time, the sampling tube can be stored in the sample placement device and placed as a separate sample. When it is necessary to take out the sample in the sampling tube for testing, press the upper and lower end plates with your hand to release the limiting protrusion from the limiting position on the locking seat, then rotate the pull rod counterclockwise, unscrew the sealing cap, and press down the push-pull plate to drive the pull rod and piston to move downward, so as to discharge the sample inside the sampling tube. This is convenient and quick, making the sampling and testing operation more convenient, and saving the use of intermediate sample storage bottles, saving operation procedures and tools. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a sampling tool for grain and oil testing according to this utility model.

[0022] Figure 2 This is a schematic diagram of the sampling cylinder of a sampling tool for grain and oil testing according to this utility model.

[0023] Figure 3 yes Figure 1 A sectional view.

[0024] Figure 4 This is a partial structural diagram of a sampling tool for grain and oil testing according to this utility model. Figure 1 .

[0025] Figure 5 This is a schematic diagram of the sealed structure of a sampling tool for grain and oil testing according to this utility model.

[0026] Figure 6 yes Figure 5 Front view.

[0027] Figure 7 yes Figure 6 Sectional view at point AA.

[0028] Figure 8 yes Figure 7 Enlarged view of area A in the middle.

[0029] Figure 9 This is a partial structural diagram of a sampling tool for grain and oil testing according to this utility model. Figure 2 .

[0030] Figure 10 yes Figure 9 Enlarged view of area B in the middle.

[0031] As shown in the figure: 1. Sampling cylinder; 2. Suction tube; 3. Tube cap; 4. Suction mechanism; 41. Piston; 42. Pull rod; 43. Push-pull plate; 5. Extension tube; 6. Sealing mechanism; 61. Sealing cap; 62. Sealing ring; 7. Bracket; 8. Limiting mechanism; 81. Snap-fit ​​seat; 82. Snap-fit ​​groove; 9. Locking mechanism; 91. Fixing plate; 92. Limiting plate; 93. Connecting seat; 94. Insertion block; 95. Snap-fit ​​plate; 10. Scale; 11. Limiting protrusion; 12. Vent hole. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to the accompanying drawings.

[0033] A sampling tool for grain and oil testing includes a transparent sampling tube 1, a scale 10 is provided at the middle of the front end of the sampling tube 1, an absorption tube 2 is provided at the lower end of the sampling tube 1, and a tube cap 3 is threadedly connected to the upper end of the sampling tube 1. Several evenly distributed ventilation holes 12 are opened at the upper end of the tube cap 3.

[0034] The sampling cylinder 1 is equipped with an aspiration mechanism 4, which includes a piston 41 slidably connected inside the sampling cylinder 1. A pull rod 42 is fixedly connected to the middle of the upper end of the piston 41. The pull rod 42 passes through the middle of the tube cap 3. A push-pull plate 43 is fixedly connected to the upper end of the pull rod 42. An extension tube 5 is detachably threadedly connected to the lower end of the aspiration tube 2. When sampling, the extension tube 5 is screwed to the lower end of the aspiration tube 2 and fixed. The extension tube 5 is inserted into the grain and oil. Pulling the push-pull plate 43 drives the pull rod 42 and the piston 41 to move upward to aspirate the sample into the sampling cylinder 1.

[0035] A sealing mechanism 6 is provided at the lower end of the suction tube 2. The sealing mechanism 6 includes a detachable sealing cap 61 threadedly connected to the lower end of the suction tube 2. A sealing ring 62 is fixedly connected to the lower end of the sealing cap 61. After the sample is collected, the extension tube 5 is unscrewed, and the sealing cap 61 is threadedly connected to the lower end of the suction tube 2 to seal it, storing the sample inside the sampling cylinder 1. The sampling cylinder 1 completes sampling and storage simultaneously, making the sampling process simpler and more convenient to operate.

[0036] A bracket 7 is fixedly connected to the upper end of the cap 3. A pull rod 42 passes through the upper end of the bracket 7. A limiting mechanism 8 is provided on the bracket 7. The limiting mechanism 8 includes several evenly distributed locking seats 81 fixedly connected to both ends of the inner side of the bracket 7 from top to bottom. The height of the locking seats 81 is set according to the whole scale. The distance between adjacent upper and lower locking seats 81 is the same as the whole scale spacing of the scale 10. A locking groove 82 is opened in the middle of the front end of the locking seat 81.

[0037] Locking mechanism 9 is provided on pull rod 42. Locking mechanism 9 includes a fixed plate 91 fixedly sleeved in the middle of pull rod 42. Limiting plates 92 are fixedly connected to both sides of the lower end of fixed plate 91. Connecting seats 93 are fixedly connected to the front and rear ends of fixed plate 91. Insertion blocks 94 are fixedly connected to the rear end of front connecting seat 93 and the front end of rear connecting seat 93. The upper and lower sides of the end of insertion block 94 away from connecting seat 93 are provided with locking plates 95. Insertion block 94 is inserted into the slot 82. Limiting protrusions 11 are provided on the side of the upper and lower locking plates 95 that are far away from each other. The upper and lower limiting protrusions 11 are locked to the upper and lower ends of the locking seat 81.

[0038] After observing the sample to the required scale using the scale ruler 10, stop the sampling. The sample can be slightly higher than the sampling scale to ensure that the sample of the required scale remains inside the sampling tube 1 during subsequent operations. Then, rotate the pull rod 42 to drive the fixed plate 91 to rotate. The rotation of the fixed plate 91 causes the upper end of the limiting plate 92 to contact the lower end of the snap-fit ​​seat 81. If the height of the limiting plate 92 is slightly higher, the pull rod 42 can be pushed down so that the limiting plate 92 can rotate to the lower end of the snap-fit ​​seat 81. At the same time, the insertion block 94 is inserted into the slot 82. Then, the limiting protrusion 11 on the upper and lower end snaps into the upper and lower ends of one side of the snap-fit ​​seat 81 to fix the position of the pull rod 42. The width of the insertion block 94 is smaller than the width of the middle slot 82 of the snap-fit ​​seat 81, which is enough to allow the insertion block 94 to rotate and be inserted into the slot 82 even when it makes a circular motion.

[0039] After the height of the pull rod 42 is fixed, the sealing cap 61 also seals the lower end of the suction tube 2. At this time, the sampling tube 1 can be stored in the sample placement device and placed as a separate sample. When it is necessary to take out the sample in the sampling tube 1 for testing, press the upper and lower end of the locking plate 95 with your hand to release the limiting protrusion 11 from the locking seat 81. Then, rotate the pull rod 42 counterclockwise, unscrew the sealing cap 61, and press down the push-pull plate 43 to drive the pull rod 42 and piston 41 to move downward, so that the sample inside the sampling tube 1 can be discharged. This is convenient and quick, making the sampling and testing operation more convenient, and saving the use of intermediate sample storage bottles, saving operation procedures and tools.

[0040] In specific implementation of this utility model, such as Figure 1-10As shown, during sampling, the extension tube 5 is screwed onto the lower end of the suction tube 2 and fixed. The extension tube 5 is inserted into the grain and oil container. Pulling the push-pull plate 43 moves the pull rod 42 and piston 41 upward to draw the sample into the sampling cylinder 1. During sampling, the insertion block 94 is not inside the slot 82 and does not affect the up-and-down movement of the pull rod 42. Observe the scale 10 and stop after sampling to the required scale. It can be slightly higher than the sampling scale to ensure that the required scale sample is still left inside the sampling cylinder 1 during subsequent operations. Then, rotate the pull rod 42 to drive the fixed plate 91 to rotate. The upper end of the limiting plate 92 contacts the lower end of the locking seat 81. If the height of the limiting plate 92 is slightly higher, the pull rod 42 can be pushed down so that the limiting plate 92 can rotate to the lower end of the locking seat 81. At the same time, the insertion block 94 is inserted into the slot 82. Then, the limiting protrusion 11 on the upper and lower end locking plates 95 is locked onto the upper and lower ends of one side of the locking seat 81 to fix the position of the pull rod 42. The width of the insertion block 94 is smaller than the width of the slot 82 in the middle of the locking seat 81, which is enough to allow the insertion block 94 to rotate and be inserted into the slot 82 even when it makes a circular motion.

[0041] like Figure 5 As shown, after the height of the pull rod 42 is fixed, the sealing cap 61 also seals the lower end of the suction tube 2. At this time, the sampling tube 1 can be stored in the sample placement device and placed as a separate sample. When it is necessary to take out the sample in the sampling tube 1 for testing, press the upper and lower end of the locking plate 95 with your hand to release the limiting protrusion 11 from the locking seat 81. Then, rotate the pull rod 42 counterclockwise, unscrew the sealing cap 61, and press down the push-pull plate 43 to drive the pull rod 42 and piston 41 to move downward, so that the sample inside the sampling tube 1 can be discharged. This is convenient and quick, making the sampling and testing operation more convenient, and saving the use of intermediate sample storage bottles, saving operation procedures and tools.

[0042] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A sampling tool for grain and oil testing, characterized in that, include: Sampling cylinder (1), the lower end of which is provided with suction tube (2); A cap (3) is threaded to the upper end of the sampling cylinder (1); A suction mechanism (4) is provided on the sampling cylinder (1). The suction mechanism (4) includes a piston (41) slidably connected inside the sampling cylinder (1). A pull rod (42) is fixedly connected to the middle of the upper end of the piston (41). The pull rod (42) passes through the middle of the tube cap (3). A push-pull plate (43) is fixedly connected to the upper end of the pull rod (42). Extension tube (5), which is detachably threaded to the lower end of suction tube (2); A sealing mechanism (6) is provided at the lower end of the suction tube (2). The sealing mechanism (6) includes a sealing cap (61) that is detachably threaded to the lower end of the suction tube (2). A sealing ring (62) is fixedly connected to the lower end of the sealing cap (61). The bracket (7) is fixedly connected to the upper end of the cap (3), and the pull rod (42) passes through the upper end of the bracket (7); The limiting mechanism (8) is mounted on the bracket (7). The limiting mechanism (8) includes several evenly distributed locking seats (81) fixedly connected to both ends of the inner side of the bracket (7) from top to bottom. The locking seat (81) has a locking groove (82) in the middle of its front end. A locking mechanism (9) is provided on the pull rod (42). The locking mechanism (9) includes a fixed plate (91) fixedly sleeved in the middle of the pull rod (42). Limiting plates (92) are fixedly connected to both sides of the lower end of the fixed plate (91). Connecting seats (93) are fixedly connected to the front and rear ends of the fixed plate (91). Insertion blocks (94) are fixedly connected to the rear end of the front end of the connecting seat (93) and the front end of the rear end of the connecting seat (93). The upper and lower sides of the end of the insertion block (94) away from the connecting seat (93) are provided with a locking plate (95).

2. The sampling tool for grain and oil testing according to claim 1, characterized in that: A scale (10) is provided at the middle of the front end of the sampling tube (1).

3. The sampling tool for grain and oil testing according to claim 1, characterized in that: The plug block (94) is inserted into the slot (82). The upper and lower end of the card plate (95) are provided with a limiting protrusion (11) on the side that is far apart from each other. The upper and lower end of the limiting protrusion (11) is engaged with the upper and lower ends of the card seat (81).

4. The sampling tool for grain and oil testing according to claim 1, characterized in that: The cap (3) has several evenly distributed ventilation holes (12) at its upper end.

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