A rapid sampler

Abstract

The utility model discloses a kind of quick samplers, it is related to agricultural product detection technical field.The sampler includes outer sleeve, the upper connecting pipe of activity connection in its upper end, the replaceable pipe of being penetrated through outer sleeve, and the adjusting rod cover of being penetrated through outer sleeve, upper connecting pipe and replaceable pipe in proper order.Adjusting rod cover is equipped with pull-out rod, its lower end is equipped with sealing piston and is sealed with replaceable pipe inner wall cooperation;Replaceable pipe lower end detachably connects multiple types of sampling head, and different sample form is adapted.Outer sleeve side is equipped with finger sleeve ring and clamping device, the latter realizes the quick locking and release of pipe by lever mechanism.By the cooperation of double sealing structure and stroke adjusting mechanism, the purity of sample and sampling quantity precision control are effectively guaranteed, the problems, such as traditional sampling operation cumbersome, poor versatility and sample easy to be contaminated, are solved, and sampling efficiency and reliability are significantly improved.

Description

Technical Field

[0001] This utility model relates to the field of agricultural product testing equipment technology, specifically a rapid sampler suitable for liquid samples. Background Technology

[0002] Traditional sampling methods have significant drawbacks in agricultural product quality inspection. Manual sampling is cumbersome, with steps such as cutting fruits and vegetables and sorting grains being time-consuming and labor-intensive. This makes it difficult to meet the high-frequency testing needs of agricultural products in rapid circulation, seriously affecting inspection efficiency.

[0003] Existing agricultural product sampling equipment lacks versatility and struggles to handle samples of different forms. Whether it's granular grains, liquid fruit and vegetable juices, or fresh agricultural products with complex shapes, a single device cannot efficiently complete the sampling, and changing tools multiple times can easily cause sample contamination, leading to inaccurate test results.

[0004] In addition, traditional equipment lacks a precise sampling volume control mechanism, and samples are prone to leakage or external contamination during the sampling process, affecting sample integrity and purity, and further reducing the reliability of detection. Summary of the Invention

[0005] A rapid sampler integrating a handheld stabilizing mechanism, modular sampling components, and a dual sealing system is provided to solve problems related to operational efficiency, versatility, and precise control.

[0006] To solve the above-mentioned technical problems, the technical solution proposed in this application is as follows:

[0007] A fast sampler, comprising:

[0008] An outer tube, the upper end of which is movably connected to an upper connecting tube;

[0009] Replaceable tubing penetrating the outer sheath;

[0010] An adjusting rod sleeve that passes sequentially through the outer sleeve, the upper connecting tube, and the replaceable draw tube;

[0011] A pull rod that is movably fitted inside the adjusting rod sleeve;

[0012] Finger loops symmetrically fixed to the sides of the outer sleeve;

[0013] Multiple sampling heads are located at the lower end of the replaceable sampling tube;

[0014] A sealing piston is provided at the lower end of the pull rod, and the sealing piston is in sealing engagement with the inner wall of the replaceable pull tube.

[0015] Furthermore, a rotating threaded bushing is fixed to the upper end of the outer sleeve;

[0016] The upper connecting pipe is threaded onto the rotating threaded shaft sleeve;

[0017] A limiting installation bushing is fixed inside the upper connecting pipe, and the limiting installation bushing is in clearance fit with the adjusting rod sleeve.

[0018] Furthermore, a sealing ring is fitted onto the limiting mounting bushing;

[0019] The upper end of the replaceable tube is fitted onto the limiting mounting sleeve and abuts against the sealing ring.

[0020] Furthermore, a rod sleeve limiting ring is fixed to the upper end of the adjusting rod sleeve, and the rod sleeve limiting ring is movably limited to the upper end of the upper connecting pipe;

[0021] An extension block is fixedly connected to the upper end of the rod sleeve limiting ring;

[0022] The locking threaded shaft passes through the extension block and presses against the side of the pull rod.

[0023] Furthermore, symmetrical support sleeves are fixed to the sides of the outer sleeve;

[0024] The bending strip is hinged inside the bracket sleeve, and one end of the bending strip has a U-shaped embedding groove;

[0025] The first lever is vertically fixed to the bending strip and passes through the bracket sleeve.

[0026] Furthermore, the outer sleeve has symmetrical movable holes on its side;

[0027] The clamping rod passes through the movable hole and is embedded in the U-shaped groove;

[0028] One end of the clamping rod is fixedly connected to a friction ring plate, which can elastically clamp and replace the drawing tube;

[0029] The second lever is fixed to the clamping rod.

[0030] Furthermore, the pressure spring is sleeved on the clamping rod;

[0031] The two ends of the pressure spring press against the second lever and the end face of the bracket sleeve, respectively.

[0032] Compared with the prior art, the present invention achieves the following beneficial technical effects:

[0033] This invention significantly improves the equipment's adaptability to different forms of agricultural products through the combination of modular replaceable sampling tubes and multiple types of sampling heads; the double sealing structure effectively ensures sample purity and avoids external contamination; the locking stroke adjustment mechanism enables precise control of the sampling volume; and the elastic clamping device combined with the ergonomic handle design makes single-handed operation more stable and efficient, thus solving the technical defects of traditional sampling operations such as cumbersome operation, poor versatility, and easy sample contamination. Attached Figure Description

[0034] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0035] Figure 1 This is a structural diagram of a rapid sampler according to the present invention;

[0036] Figure 2 This is a cross-sectional view of the support sleeve of a rapid sampler according to the present invention;

[0037] Figure 3 The present utility model proposes Figure 2 Enlarged view of point A in the middle;

[0038] Figure 4 This is a cross-sectional view of the rotating threaded bushing of a rapid sampler according to the present invention;

[0039] Figure 5 The present utility model proposes Figure 4 Enlarged view of point B in the middle;

[0040] Figure 6 This is a cross-sectional view of the disassembly device for a rapid sampler according to the present invention.

[0041] The components include: 1. Outer tube; 2. Upper connecting tube; 3. Replaceable pull tube; 4. Adjusting rod sleeve; 5. Rod sleeve limiting ring; 6. Pull rod; 7. Multi-type sampling head; 8. Finger collar; 9. Support sleeve; 10. Bending strip; 11. Sealing piston; 12. Movable hole; 13. Clamping rod; 14. Friction ring plate; 15. U-shaped embedded groove; 16. Pressure spring; 17. Limiting mounting bushing; 18. Sealing ring; 19. Rotary threaded bushing; 20. Extension block; 21. Locking threaded shaft; 22. First lever; 23. Second lever. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] like Figure 1-6As shown, the rapid sampler of the present invention mainly includes an outer tube 1, an upper connecting tube 2, a replaceable sampling tube 3, an adjusting rod sleeve 4, a pull rod 6, a finger collar 8, multiple types of sampling heads 7, and a sealing piston 11. The outer tube 1 serves as the main support structure of the entire sampler. Its upper end is movably connected to the upper connecting tube 2 via a rotating threaded bushing 19. This threaded connection method ensures connection stability and facilitates disassembly and assembly. The replaceable sampling tube 3 passes through the outer tube 1, and its lower end is equipped with multiple types of sampling heads 7, allowing for replacement of the appropriate sampling head according to different sampling needs. The adjusting rod sleeve 4 sequentially passes through the outer tube 1, the upper connecting tube 2, and the replaceable sampling tube 3, providing a moving channel for the pull rod 6. The pull rod 6 is movably sleeved within the adjusting rod sleeve 4, and its lower end's sealing piston 11 is in a sealing fit with the inner wall of the replaceable sampling tube 3. When the pull rod 6 moves up and down, negative or positive pressure can be formed within the replaceable sampling tube 3, thereby realizing sampling and sample dispensing operations. The finger collars 8 are symmetrically fixed to the side of the outer tube 1, making it convenient for operators to hold and control the sampler.

[0044] The rotating threaded bushing 19 fixed at the upper end of the outer sleeve 1 provides a stable connection base for the upper connecting pipe 2. The upper connecting pipe 2 is threaded onto the rotating threaded bushing 19 and can be rotated and adjusted as needed to change the relative position of the upper connecting pipe 2 and the outer sleeve 1. The limiting mounting bushing 17 fixed inside the upper connecting pipe 2 has a clearance fit with the adjusting rod sleeve 4, which ensures that the adjusting rod sleeve 4 can move freely inside the upper connecting pipe 2, while also effectively limiting it to prevent the adjusting rod sleeve 4 from shifting.

[0045] The sealing ring 18 fitted onto the limiting mounting bushing 17 provides a good seal. The upper end of the replaceable sampling tube 3 is fitted onto the limiting mounting bushing 17 and abuts against the sealing ring 18, ensuring the seal between the replaceable sampling tube 3 and the upper connecting tube 2 and preventing leakage during sampling.

[0046] The adjusting rod sleeve 4 is fixed at its upper end by a sleeve limiting ring 5, which is movablely limited at the upper end of the upper connecting pipe 2 to prevent the adjusting rod sleeve 4 from coming off from above. The extension block 20 fixed to the upper end of the sleeve limiting ring 5 provides an installation position for the locking threaded shaft 21. The locking threaded shaft 21 passes through the extension block 20 and presses against the side of the pull rod 6. By rotating the locking threaded shaft 21, the pull rod 6 can be fixed in the desired position, thereby achieving precise control of the sampling amount.

[0047] The symmetrical support sleeve 9 fixed to the side of the outer tube 1 provides hinged support for the bending strip 10. The bending strip 10 is hinged inside the support sleeve 9, and a U-shaped insert 15 at one end engages with the clamping rod 13. A first lever 22, vertically fixed to the bending strip 10, passes through the support sleeve 9. By operating the first lever 22, the operator can rotate the bending strip 10 around the hinge point, thereby moving the clamping rod 13.

[0048] The symmetrical movable holes 12 on the side of the outer sleeve 1 provide a channel for the clamping rod 13 to move. The clamping rod 13 passes through the movable holes 12 and is embedded in the U-shaped insert groove 15. When the bending strip 10 rotates, the clamping rod 13 can be moved within the movable holes 12 through the U-shaped insert groove 15. A friction ring plate 14 fixed to one end of the clamping rod 13 elastically clamps the replaceable tube 3. By controlling the movement of the clamping rod 13, the clamping force of the friction ring plate 14 on the replaceable tube 3 can be adjusted, thereby fixing and releasing the replaceable tube 3. A second lever 23 fixed to the clamping rod 13 facilitates the operator's operation of the clamping rod 13.

[0049] In use, the operator holds the outer tube 1 through the finger collar 8, replaces the appropriate multi-type sampling head 7 according to the sample type, and installs it at the lower end of the replaceable tube 3. Pressing down the pull rod 6 causes the sealing piston 11 to move downwards within the replaceable tube 3 to expel air; pulling up the pull rod 6 uses negative pressure to force the sample through the sampling head into the replaceable tube 3 to complete the sampling. During sampling, the threaded engagement between the rotating threaded bushing 19 and the upper connecting tube 2 ensures the overall structure is stable, and the limiting installation bushing 17 and sealing ring 18 prevent sample leakage. To adjust the sampling volume, rotate the locking threaded shaft 21, which limits the stroke of the pull rod 6 through the rod sleeve limiting ring 5 and the extension block 20. When replacing the replaceable tube 3, pressing the first lever 22 rotates the bending strip 10, releasing the tube through the U-shaped embedded groove 15, clamping rod 13, and friction ring 14; the pressure spring 16 maintains the clamping rod 13's hold on the tube when not in operation, ensuring stable and reliable sampling.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A rapid sampler, characterized in that, include: Outer tube (1), the upper end of which is movably connected to an upper connecting tube (2); Replaceable draw tube (3) penetrating the outer sleeve (1); An adjusting rod sleeve (4) passes through the outer sleeve (1), the upper connecting tube (2), and the replaceable draw tube (3) in sequence; A pull rod (6) is movably fitted inside the adjusting rod sleeve (4); Finger collars (8) are symmetrically fixed to the side of the outer sleeve (1); A multi-type sampling head (7) is provided at the lower end of the replaceable sampling tube (3); A sealing piston (11) is provided at the lower end of the pull rod (6), and the sealing piston (11) is in sealing cooperation with the inner wall of the replaceable pull tube (3).

2. The rapid sampler according to claim 1, characterized in that: The upper end of the outer sleeve (1) is fixed with a rotating threaded bushing (19); The upper connecting pipe (2) is threadedly sleeved onto the rotating threaded bushing (19); The upper connecting pipe (2) is fixed with a limiting installation bushing (17), and the limiting installation bushing (17) is clearance-fitted with the adjusting rod sleeve (4).

3. The rapid sampler according to claim 2, characterized in that: A sealing ring (18) is fitted onto the limiting mounting bushing (17); The upper end of the replaceable tube (3) is sleeved on the limiting mounting bushing (17) and abuts against the sealing ring (18).

4. The rapid sampler according to claim 1, characterized in that: The upper end of the adjusting rod sleeve (4) is fixed with a rod sleeve limiting ring (5), and the rod sleeve limiting ring (5) is movably limited to the upper end of the upper connecting pipe (2); An extension block (20) is fixedly connected to the upper end of the rod sleeve limiting ring (5); The locking threaded shaft (21) passes through the extension block (20) and presses against the side of the pull rod (6).

5. The rapid sampler according to claim 1, characterized in that: The outer sleeve (1) is fixed with symmetrical support sleeves (9) on its side; The bending strip (10) is hinged inside the bracket sleeve (9), and a U-shaped embedding groove (15) is opened at one end of the bending strip (10); The first lever (22) is vertically fixed to the bending strip (10) and passes through the bracket sleeve (9).

6. The rapid sampler according to claim 5, characterized in that: The outer sleeve (1) has symmetrical movable holes (12) on its side; The clamping rod (13) passes through the movable hole (12) and is embedded in the U-shaped insert groove (15); One end of the clamping rod (13) is fixedly connected to a friction ring plate (14), which elastically clamps the replaceable drawing tube (3); The second lever (23) is fixed to the clamp (13).

7. The rapid sampler according to claim 6, characterized in that: The pressure spring (16) is sleeved on the clamping rod (13); The pressure spring (16) presses against the end faces of the second lever (23) and the bracket sleeve (9) at both ends.

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