Small-gram-weight accurate sampler

Abstract

The small-gram-weight accurate sampler comprises a barrel shell, the interior of the barrel shell is designed to be hollow, a protruding block is arranged on the outer surface of one side of the barrel shell, the side surface of the protruding block is in threaded connection with a barrel cover, and a T-shaped groove is formed in the outer surface of the side, close to the barrel shell, of the barrel cover; a sliding shell is fixedly installed on the outer surface of one side of the barrel shell, a through hole is formed in the connecting position of the sliding shell and the barrel shell, a scraping mechanism is arranged on the side, away from the barrel cover, of the sliding shell, and powdery objects needing to be sampled are extracted through the scraping mechanism. According to the small-gram-weight accurate sampler, during sampling, the barrel shell needs to be held, the sliding shell and the sampling spoon stretch into a sampling bottle, a sample is dug through the sampling spoon, then a push button is pulled, the sampling spoon is retracted into the sliding shell, redundant samples on the outer surface of the sampling spoon are scraped off by a scraper, and only the samples in the sampling spoon are left; therefore, accurate small-gram-weight samples can be obtained.

Description

Technical Field

[0001] The utility model relates to the technical field of samplers, in particular to a small-weight precision sampler. Background Art

[0002] With the development and progress of science and technology, chemical experiments are indispensable in the research of various drugs and products. In various experiments, it is inevitable to take samples of various items. The sampling of powdered samples is very inconvenient. The powdered samples need to be taken out and placed on a scale for weighing before they can be placed in the laboratory vessel. In the weighing process, it is inevitable that too much sample will be poured out on the scale surface. If too much sample is poured out, it needs to be dug out before the next step can be carried out, which makes the operation process very inconvenient and it is easy to get the sample on the laboratory table, resulting in the loss of extremely precious samples. Utility Model Content

[0003] The utility model aims to provide a small-weight precision sampler to solve the problem in the above-mentioned background technology that a fixed amount of sample needs to be weighed before sampling.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a small gram weight precision sampler, comprising a barrel shell, the interior of the barrel shell is hollow, and a protruding block is provided on the outer surface of one side of the barrel shell, and the diameter of the protruding block is larger than the diameter of the barrel shell, the side surface of the protruding block is threadedly connected to the barrel cover, and a T-shaped groove is provided on the outer surface of the barrel cover on one side close to the barrel shell, and the barrel shell and the protruding block are concentrically designed, a sliding shell is fixedly installed on the outer surface of one side of the barrel shell, and a through hole is provided at the connection between the sliding shell and the barrel shell, and a scraping mechanism is provided on the side of the sliding shell away from the barrel cover, and the powdered items to be sampled are extracted by the scraping mechanism.

[0005] Preferably, the scraping mechanism includes: a slot, which is opened at one end of the sliding shell away from the protruding block, and a scraper is slidably installed inside the slot, and the end of the scraper away from the sliding shell is an inverted triangle, and a sampling spoon is slidably installed inside the sliding shell, and the side surface of the sampling spoon is in contact with the side surface of the scraper.

[0006] By adopting the above technical solution, by holding the barrel shell, the sliding shell and the sampling spoon are inserted into the items to be sampled, the items are scooped up by the sampling spoon, and then the sampling spoon is retracted into the sliding shell, so that the scraper scrapes the sampling spoon, and the excess sample on the outer surface of the sampling spoon is scraped off and falls back into the sampling bottle, so that a quantitative sample is stored inside the sampling spoon, and an accurate amount of sample is taken out, while avoiding sample waste.

[0007] Preferably, a snap-fit ​​mechanism is provided inside the sliding shell, and sampling spoons of different specifications and capacities can be easily replaced through the snap-fit ​​mechanism.

[0008] By adopting the above technical solution, sampling spoons of different capacities can be replaced to facilitate and quickly scoop out the gram weight required for sampling.

[0009] Preferably, the locking mechanism includes: a slide groove, which is opened on both sides of the sliding shell, and the slide groove is locked with the side surface of the sampling spoon, and the side surface of the sampling spoon is locked with a grabbing slider, a spring plate is slidably installed inside the grabbing slider, and a limit block is fixedly installed on one end of the spring plate close to the grabbing slider, and the limit block is slidably connected to the grabbing slider, the end of the sampling spoon close to the spring plate is inclined, and a clamping block is fixedly opened on the side of the spring plate close to the sampling spoon, and the clamping block is locked with the side surface of the sampling spoon, and a first spring is arranged between the grabbing slider and the spring plate.

[0010] By adopting the above technical solution, the spring plate is pushed by the first spring, so that the limit block slides inside the grabbing slider following the spring plate. When the sampling spoon is inserted into the sliding shell, the sampling spoon will be stuck in the inside of the slide groove to position the sampling spoon. When the inclined surface of the sampling spoon contacts the spring plate, the spring plate will be pressed down, so that the blocking block and the sampling spoon are engaged, so that the grabbing slider can move with the sampling spoon.

[0011] Preferably, a button is slidably installed at one end of the sliding shell close to the scraper, and a third spring is arranged between the button and the sliding shell, one end of the button is located inside the sliding shell, a gap is arranged between the sampling spoon and the grabbing slider, and the gap between the grabbing slider and the sampling spoon can be inserted with the button.

[0012] With the above technical solution, when the push button is pressed, one end of the button will contact the spring plate, so that the spring plate is pressed down, and the card block is separated from the sampling spoon, making it easy to take out the sampling spoon.

[0013] Preferably, a push-slide mechanism is provided inside the barrel shell and the sliding shell, and the sampling spoon is driven to retract into the interior of the sliding shell by the push-slide mechanism.

[0014] By adopting the above technical solution, the nylon rope can be driven to move by pulling back the push button, and the grabbing slider can be pulled, so that the grabbing slider drives the sampling spoon to retract into the interior of the sliding shell.

[0015] Preferably, the push-slide mechanism includes: an anti-scratch block, which is fixedly installed at one end of the sliding shell away from the card slot, and a circular through hole is penetrated through the outer surface of the anti-scratch block, and the circular through hole of the anti-scratch block is provided with an arc chamfer, a nylon rope is provided inside the sliding shell, and one end of the nylon rope is fixedly installed on the side surface of the grabbing slider, and a second spring is provided between the grabbing slider and the anti-scratch block, a guide roller is fixedly installed at one end of the sliding shell close to the anti-scratch block, and the outer surface of the groove of the guide roller is fitted with the nylon rope, and the nylon rope passes through the circular through hole of the anti-scratch block, a guide roller is fixedly installed inside the barrel shell, and the outer surface of the guide roller is fitted with the outer surface of the nylon rope, a push button is slidably installed on the outer surface of the barrel shell, and the side surface of the push button is connected to one end of the nylon rope.

[0016] By adopting the above technical solution, after the sampling spoon is retracted into the sliding shell, the push button can be loosened to allow the second spring to push the grabbing slider back, so that the sampling spoon is pushed back to its original position, and the guide roller can prevent the nylon rope from being worn.

[0017] Compared with the prior art, the utility model has the following beneficial effects: the small gram weight precision sampler:

[0018] 1. When sampling, you need to hold the barrel shell, extend the sliding shell and the sampling spoon into the sampling bottle, dig the sample with the sampling spoon, and then pull the push button to retract the sampling spoon into the sliding shell, so that the excess sample on the outer surface of the sampling spoon is scraped off by the scraper, leaving only the sample inside the sampling spoon, reducing sample waste while obtaining accurate small gram weight samples;

[0019] 2. When sampling of different gram weights is required, the button can be pressed so that one end of the button presses down the spring plate to disengage the card block from the sampling spoon, and then the sampling spoon can be directly pulled out. When the button is released, the third spring will push the release button back, and then a sampling spoon of another specification can be inserted into the sliding shell, so that the inclined surface of the sampling spoon pushes open the spring plate, so that the card block and the sampling spoon are engaged. The card block is always in contact with the sampling spoon through the first spring, which is convenient for replacing the sampling spoon to take out samples of different gram weights. At the same time, the sampling spoon can be automatically fixed after insertion;

[0020] 3. By pulling the push button, the nylon rope can be moved together, and the grab slider can be moved together. The grab slider can be limited by the anti-scratch block. At the same time, the grab slider and the anti-scratch block can reduce the wear of the nylon rope. Then, the grab slider is pushed by the third spring, and the sampling spoon and the push button can return to their original positions, making it convenient to pour the scraped sample out of the sampling spoon. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the barrel shell and the sliding shell of the utility model;

[0022] Figure 2 This is a schematic diagram of the three-dimensional structure of the barrel shell and the protruding block of the utility model;

[0023] Figure 3 This is a schematic diagram of the three-dimensional structure of the barrel shell and the sliding shell of the utility model;

[0024] Figure 4 This is a schematic diagram of the three-dimensional structure of the sampling spoon and the spring plate of the utility model;

[0025] Figure 5 This is a schematic diagram of the cross-sectional three-dimensional structure of the sliding shell and the button of the utility model;

[0026] Figure 6 It is a schematic diagram of the three-dimensional structure of the sampling spoon and the card slot of the utility model.

[0027] In the figure: 1. barrel shell; 2. protruding block; 3. barrel cover; 4. sliding shell; 5. sampling spoon; 6. slide groove; 7. card slot; 8. scraper; 9. grab slider; 10. spring plate; 11. card block; 12. limit block; 13. first spring; 14. second spring; 15. anti-scratch block; 16. guide roller; 17. nylon rope; 18. button; 19. third spring; 20. push button. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-6 The utility model provides a technical solution: a small gram weight precision sampler, including a barrel shell 1, the interior of the barrel shell 1 is hollow, and a protruding block 2 is provided on the outer surface of one side of the barrel shell 1, and the diameter of the protruding block 2 is larger than the diameter of the barrel shell 1, the side surface of the protruding block 2 is threadedly connected to the barrel cover 3, and the outer surface of the barrel cover 3 on one side close to the barrel shell 1 is provided with a T-shaped groove, and the barrel shell 1 and the protruding block 2 are concentrically designed, a sliding shell 4 is fixedly installed on the outer surface of one side of the barrel shell 1, and a through hole is provided at the connection between the sliding shell 4 and the barrel shell 1.

[0030] Sampling spoons 5 of different specifications can be placed inside the barrel shell 1 through the barrel shell 1, and the scraper 8 can be inserted through the T-shaped groove of the barrel cover 3, so that the scraper 8 can be screwed into the inside of the protruding block 2 for storage, which is convenient for storing sampling spoons 5 of different specifications.

[0031] A scraping mechanism is provided on the side of the sliding shell 4 away from the barrel cover 3, and the powdered materials to be sampled are extracted by the scraping mechanism. The scraping mechanism includes: a card slot 7, the card slot 7 is opened at the end of the sliding shell 4 away from the protruding block 2, and a scraper 8 is slidably installed inside the card slot 7, and the end of the scraper 8 away from the sliding shell 4 is an inverted triangle, and a sampling spoon 5 is slidably installed inside the sliding shell 4, and the side surface of the sampling spoon 5 is in contact with the side surface of the scraper 8.

[0032] By holding the barrel shell 1, the sliding shell 4 and the sampling spoon 5 are extended into the bottle of the item to be sampled, so that the sampling spoon 5 can scoop the sample in the bottle, and then the sampling spoon 5 is retracted into the interior of the sliding shell 4, so that the scraper 8 scrapes the outer surface of the sampling spoon 5, and the scraper 8 is conveniently slid further through the card slot 7, so that a fixed amount of sample is stored inside the spoon of the sampling spoon 5, so as to take out a quantitative sample.

[0033] A locking mechanism is provided inside the sliding shell 4, and the locking mechanism is used to facilitate the replacement of sampling spoons 5 of different specifications and capacities. The locking mechanism includes: a slide groove 6, which is opened on both sides inside the sliding shell 4, and the slide groove 6 is locked with the side surface of the sampling spoon 5, and the side surface of the sampling spoon 5 is locked with a grabbing slider 9, and a spring plate 10 is slidably installed inside the grabbing slider 9, and a limit block 12 is fixedly installed on one end of the spring plate 10 close to the grabbing slider 9, and the limit block 12 is slidably connected to the grabbing slider 9, and the end of the sampling spoon 5 close to the spring plate 10 is inclined, and a clamping block 11 is fixedly opened on the side of the spring plate 10 close to the sampling spoon 5, and the clamping block 11 is locked with the side surface of the sampling spoon 5, and a first spring 13 is provided between the grabbing slider 9 and the spring plate 10.

[0034] When in use, the sampling spoon 5 can be inserted into the sliding shell 4, so that the sampling spoon 5 moves along the slide groove 6 to limit the sampling spoon 5. Then, the inclined surface of the sampling spoon 5 contacts one end of the spring plate 10, and the spring plate 10 is pressed down to make the limit block 12 slide inside the grabbing slider 9, so that the clamping block 11 is engaged with the sampling spoon 5. Then, through the push of the first spring 13, the spring plate 10 is close to the side surface of the sampling spoon 5, so that the sampling spoon 5 is fixed.

[0035] A button 18 is slidably installed on one end of the sliding shell 4 close to the scraper 8, and a third spring 19 is arranged between the button 18 and the sliding shell 4. One end of the button 18 is located inside the sliding shell 4, and a gap is arranged between the sampling spoon 5 and the grabbing slider 9, and the button 18 can be inserted into the gap between the grabbing slider 9 and the sampling spoon 5.

[0036] By pressing the button 18, the button 18 can be moved in the sliding shell 4, so that one end of the button 18 contacts the spring plate 10, so that the block 11 is separated from the sampling spoon 5, so that the sampling spoon 5 can be pulled out for replacement.

[0037] The barrel shell 1 and the sliding shell 4 are provided with a push-slide mechanism, which drives the sampling spoon 5 to retract into the sliding shell 4. The push-slide mechanism includes: an anti-scratch block 15, which is fixedly installed at one end of the sliding shell 4 away from the card slot 7, and the outer surface of the anti-scratch block 15 is penetrated by a circular through hole, and the circular through hole of the anti-scratch block 15 is provided with an arc chamfer, a nylon rope 17 is provided inside the sliding shell 4, and one end of the nylon rope 17 is fixedly installed on the side surface of the grabbing slider 9, and the grabbing slider 9 and the anti-scratch block A second spring 14 is arranged between 15, a guide roller 16 is fixedly installed at one end of the sliding shell 4 close to the anti-scratch block 15, and the outer surface of the groove of the guide roller 16 fits with the nylon rope 17, and the nylon rope 17 passes through the circular through hole of the anti-scratch block 15, a guide roller 16 is fixedly installed inside the barrel shell 1, and the outer surface of the guide roller 16 fits with the outer surface of the nylon rope 17, a push button 20 is slidably installed on the outer surface of the barrel shell 1, and the side surface of the push button 20 is connected to one end of the nylon rope 17.

[0038] By pulling the push button 20, the nylon rope 17 is pulled, and the grabbing slider 9 is pulled and moved inside the sliding shell 4, so as to drive the sampling spoon 5 to retract into the interior of the sliding shell 4. The grabbing slider 9 is limited by the anti-scratch block 15, and the nylon rope 17 is prevented from being worn by the guide roller 16 and the anti-scratch block 15. At the same time, when the push button 20 is released, the second spring 14 will push back the grabbing slider 9, so that the sampling spoon 5 and the push button 20 return to their original positions.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A small gram weight precision sampler, comprising a barrel shell (1), the interior of the barrel shell (1) is of hollow design, and a protruding block (2) is provided on one side outer surface of the barrel shell (1), and the diameter of the protruding block (2) is larger than the diameter of the barrel shell (1), the side surface of the protruding block (2) is threadedly connected to the barrel cover (3), and the outer surface of the barrel cover (3) on one side close to the barrel shell (1) is provided with a T-shaped groove, and the barrel shell (1) and the protruding block (2) are of concentric design, a sliding shell (4) is fixedly installed on one side outer surface of the barrel shell (1), and a through hole is provided at the connection between the sliding shell (4) and the barrel shell (1), characterized in that: A scraping mechanism is provided on the side of the sliding shell (4) away from the barrel cover (3), and the powdered article to be sampled is extracted by the scraping mechanism.

2. The small weight precision sampler according to claim 1, characterized in that: The scraping mechanism comprises: a slot (7), the slot (7) being formed at one end of the sliding shell (4) away from the protruding block (2), a scraper (8) being slidably mounted inside the slot (7), and an end of the scraper (8) away from the sliding shell (4) being in the shape of an inverted triangle, a sampling spoon (5) being slidably mounted inside the sliding shell (4), and a side surface of the sampling spoon (5) being in contact with a side surface of the scraper (8).

3. The small weight precision sampler according to claim 1, characterized in that: A snap-fit ​​mechanism is provided inside the sliding shell (4), and sampling spoons (5) of different specifications and capacities can be easily replaced through the snap-fit ​​mechanism.

4. The small weight precision sampler according to claim 3, characterized in that: The engaging mechanism comprises: a slide groove (6), wherein the slide groove (6) is provided on both sides of the interior of the sliding shell (4), and the slide groove (6) is engaged with the side surface of the sampling spoon (5), and a grabbing slider (9) is mounted on the side surface of the sampling spoon (5), and a spring plate (10) is slidably mounted inside the grabbing slider (9), and a limit block (12) is fixedly mounted on one end of the spring plate (10) close to the grabbing slider (9), and the limit block (12) is slidably connected to the grabbing slider (9), and the end of the sampling spoon (5) close to the spring plate (10) is inclined, and a clamping block (11) is fixedly provided on one side of the spring plate (10) close to the sampling spoon (5), and the clamping block (11) is engaged with the side surface of the sampling spoon (5), and a first spring (13) is arranged between the grabbing slider (9) and the spring plate (10).

5. The small weight precision sampler according to claim 4, characterized in that: A button (18) is slidably mounted on one end of the sliding shell (4) close to the scraper (8), and a third spring (19) is provided between the button (18) and the sliding shell (4); one end of the button (18) is located inside the sliding shell (4); a gap is provided between the sampling spoon (5) and the grabbing slider (9), and the gap between the grabbing slider (9) and the sampling spoon (5) is capable of inserting the button (18).

6. The small weight precision sampler according to claim 1, characterized in that: A push-slide mechanism is provided inside the barrel shell (1) and the sliding shell (4), and the sampling spoon (5) is driven to retract into the interior of the sliding shell (4) by the push-slide mechanism.

7. The small weight precision sampler according to claim 6, characterized in that: The push-slide mechanism comprises: an anti-scratch block (15), the anti-scratch block (15) being fixedly mounted at one end of the sliding shell (4) away from the card slot (7), and a circular through hole is provided through the outer surface of the anti-scratch block (15), and the circular through hole of the anti-scratch block (15) is provided with an arc chamfer, a nylon rope (17) is provided inside the sliding shell (4), and one end of the nylon rope (17) is fixedly mounted on the side surface of the grabbing slider (9), and a second spring (14) is provided between the grabbing slider (9) and the anti-scratch block (15), and the sliding shell (4) is provided with a nylon rope (17) inside the sliding shell (4). A guide roller (16) is fixedly mounted near one end of the anti-scratch block (15), and the outer surface of the groove of the guide roller (16) fits with the nylon rope (17), and the nylon rope (17) passes through the circular through hole of the anti-scratch block (15). A guide roller (16) is fixedly mounted inside the barrel shell (1), and the outer surface of the guide roller (16) fits with the outer surface of the nylon rope (17). A push button (20) is slidably mounted on the outer surface of the barrel shell (1), and the side surface of the push button (20) is connected to one end of the nylon rope (17).

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