A sampling device for chemical engineering

Abstract

The utility model relates to chemical engineering sampling technical field, and disclose a kind of for chemical engineering sampling device, including sampling valve, and sampling valve outside is provided with positioning mechanism, and positioning mechanism front is provided with locking mechanism, and positioning mechanism includes right-angle plate, and right-angle plate is fixedly connected in sampling valve outer wall, and right-angle plate bottom is fixedly connected with sliding slot, and sliding slot inner wall is rotatably connected with threaded rod, and threaded rod outer wall is threadedly connected with rectangular plate. The sampling device for chemical engineering, positioning mechanism is set, is engaged transmission using hand wheel to drive worm and worm gear, drives bidirectional threaded rod rotation, makes two sides rectangular plate move along sliding slot, and then is firmly clamped to sampling bottle by fixed arm drive arc block. The structure effectively avoids the sampling bottle loosening or falling off due to external vibration or operation interference, significantly improves the stability and security of sampling process, reduces the risk of sample contamination or leakage, ensures the reliability and continuity of sampling.

Description

Technical Field

[0001] This utility model relates to the field of chemical engineering sampling technology, specifically a sampling device for chemical engineering. Background Technology

[0002] Chemical engineering sampling refers to the process of extracting a representative small amount of substance (such as raw materials, intermediate products, or finished products) from a production process, equipment, or material using standard methods. Its core lies in ensuring, through scientific methods, that the sample accurately reflects the overall chemical composition, physical properties, and state of the material. This operation is fundamental to quality control, process optimization, and safe production, involving strict selection of sampling points, standardized tools, and rigorous operating procedures to avoid contamination or distortion, thereby providing reliable data to support subsequent analysis and decision-making.

[0003] In chemical engineering equipment, sampling valves are typically installed to sample and test chemical raw materials. The common procedure involves screwing a sampling bottle into the valve's interface to collect the sample. However, during sampling, the connection between the sampling valve and the sampling bottle is susceptible to external factors (such as mechanical vibration, operational disturbances, or accidental contact), which may cause it to loosen or even detach. This unstable connection not only increases the risk of sample contamination or leakage but also disrupts the safety and continuity of sampling, hindering the smooth progress of subsequent testing. Utility Model Content

[0004] The purpose of this invention is to provide a sampling device for chemical engineering to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a sampling device for chemical engineering, comprising a sampling valve, a positioning mechanism provided on the outside of the sampling valve, and a locking mechanism provided on the front of the positioning mechanism; The positioning mechanism includes a right-angle plate, which is fixedly connected to the outer wall of the sampling valve. A groove is fixedly connected to the bottom of the right-angle plate. A threaded rod is rotatably connected to the inner wall of the groove. A rectangular plate is threadedly connected to the outer wall of the threaded rod. A fixed arm is fixedly connected to the front of the rectangular plate. An arc-shaped block is fixedly connected to the inner side of the fixed arm. A worm gear is fixedly connected to the outer wall of the threaded rod. A worm is meshed with the outer wall of the worm gear. A handwheel is provided on the front of the locking mechanism.

[0006] Preferably, the threads on the two outer walls of the threaded rod are in opposite directions, and the rectangular plate is slidably connected to the inner wall of the groove, so that the rotational motion of the threaded rod is converted into the linear motion of the rectangular plate.

[0007] Preferably, the worm gear passes through the front of the slide groove and rotates, and the worm gear is rotatably connected to the inner wall of the slide groove to provide stable support for the worm gear.

[0008] Preferably, two arc-shaped blocks are provided, and the inner side of both arc-shaped blocks is provided with anti-slip texture, which can ensure the stability of the sampling bottle.

[0009] Preferably, the locking mechanism includes a support plate, which is fixedly connected to the front of the slide groove. A support ring is fixedly connected to the top of the support plate, and a magnetic ring is fixedly connected to the front of the support ring. An external spline is fixedly connected to the outer wall of the worm gear, and a support sleeve is fixedly connected to the inner ring of the handwheel. An internal spline is fixedly connected to the back of the support sleeve, and a second support ring is fixedly connected to the back of the internal spline. A second magnetic ring is fixedly connected to the back of the second support ring, further preventing external influences from causing misoperation of the handwheel and ensuring the stability of the sampling bottle.

[0010] Preferably, the inner ring of the inner spline meshes with the outer ring of the outer spline, and the diameters of the inner rings of both the second support ring and the first support ring are larger than the diameter of the outer wall of the worm, thereby ensuring that the worm can rotate stably.

[0011] Preferably, the inside of the support sleeve is hollowed out, and the back of the second magnetic ring and the front of the first magnetic ring have opposite magnetic poles, which facilitates better positioning of the handwheel.

[0012] Compared with the prior art, this utility model provides a sampling device for chemical engineering, which has the following advantages: This sampling device for chemical engineering utilizes a positioning mechanism that uses a handwheel to drive a worm gear and worm wheel, which in turn rotates a bidirectional threaded rod. This causes two rectangular plates on either side to move towards each other along a sliding groove, and then a fixed arm drives an arc-shaped block to securely clamp the sampling bottle. This structure effectively prevents the sampling bottle from loosening or falling off due to external vibration or operational interference, significantly improving the stability and safety of the sampling process, reducing the risk of sample contamination or leakage, and ensuring the reliability and continuity of sampling.

[0013] This sampling device for chemical engineering employs a locking mechanism with spline engagement and magnetic limiting functions. After clamping, pushing the handwheel backward disengages the internal and external splines, while the attraction between magnetic coils one and two provides self-locking, effectively preventing accidental contact or accidental rotation of the handwheel from causing the clamp to loosen. This mechanism further enhances operational reliability and system safety, avoiding the impact of human error on sampling results, and is suitable for chemical engineering scenarios requiring high-frequency, high-stability sampling. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Figure 1 This is a front view of the structure of this utility model; Figure 2 This is a left view of the structure of this utility model; Figure 3 This is a front sectional view of the structure of this utility model; Figure 4 A schematic diagram of the structure at the support sleeve; Figure 5 This is a schematic diagram of the structure at the external spline. Figure 6 This is a schematic diagram of one part of the magnetic coil structure.

[0015] In the diagram: 1. Sampling valve; 2. Positioning mechanism; 21. Right-angle plate; 22. Slide groove; 23. Threaded rod; 24. Rectangular plate; 25. Fixed arm; 26. Arc block; 27. Worm gear; 28. Worm; 29. ​​Handwheel; 3. Locking mechanism; 31. Support plate; 32. Support ring one; 33. Magnetic ring one; 34. External spline; 35. Internal spline; 36. Support sleeve; 37. Support ring two; 38. Magnetic ring two. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0018] This utility model provides the following technical solution: Example

[0019] Combination Figures 1 to 6 A sampling device for chemical engineering includes a sampling valve 1, a positioning mechanism 2 on the outside of the sampling valve 1, and a locking mechanism 3 on the front of the positioning mechanism 2. The structure is reasonably arranged. The positioning mechanism 2 clamps and fixes the sampling bottle, and the locking mechanism 3 prevents misoperation, thus ensuring the stability and safety of the sampling valve 1 during the sampling process. The positioning mechanism 2 includes a right-angle plate 21, which is fixedly connected to the outer wall of the sampling valve 1. A groove 22 is fixedly connected to the bottom of the right-angle plate 21. A threaded rod 23 is rotatably connected to the inner wall of the groove 22. A rectangular plate 24 is threadedly connected to the outer wall of the threaded rod 23. A fixed arm 25 is fixedly connected to the front of the rectangular plate 24. An arc-shaped block 26 is fixedly connected to the inner side of the fixed arm 25. A worm gear 27 is fixedly connected to the outer wall of the threaded rod 23. A worm 28 is meshed with the outer wall of the worm gear 27. A handwheel 29 is provided on the front of the locking mechanism 3. By rotating the handwheel 29, the worm 28 and the worm gear 27 are driven to mesh and transmit power, which drives the threaded rod 23 to rotate, thereby causing the rectangular plate 24 to move along the groove 22. Finally, the arc-shaped block 26 clamps the sampling bottle through the fixed arm 25, realizing reliable one-handed operation and stable clamping.

[0020] Furthermore, the threads on the two outer walls of the threaded rod 23 are in opposite directions, and the rectangular plate 24 is slidably connected to the inner wall of the groove 22. The threaded rod 23 with bidirectional threads, in conjunction with the limiting effect of the groove 22, can synchronously drive the rectangular plates 24 on both sides to move in opposite directions, thereby efficiently and symmetrically controlling the clamping and releasing action of the arc block 26.

[0021] Furthermore, the worm 28 passes through the front of the slide groove 22 and rotates. The worm 28 is rotatably connected to the inner wall of the slide groove 22. The slide groove 22 provides stable rotational support for the worm 28, ensuring the smoothness and reliability of the transmission between the worm wheel 27 and the worm 28, while also improving the structural rigidity of the entire positioning mechanism 2.

[0022] Furthermore, there are two arc-shaped blocks 26, and the inner side of each arc-shaped block 26 is provided with anti-slip texture. The two arc-shaped blocks 26 are symmetrically arranged and provided with anti-slip texture, which can effectively increase the friction with the surface of the sampling bottle, prevent slipping or falling off, and significantly improve the stability and safety of clamping. Example

[0023] See Figures 1 to 6Furthermore, based on Embodiment 1, the locking mechanism 3 further includes a support plate 31, which is fixedly connected to the front of the slide groove 22. A support ring 32 is fixedly connected to the top of the support plate 31, and a magnetic ring 33 is fixedly connected to the front of the support ring 32. An external spline 34 is fixedly connected to the outer wall of the worm gear 28. A support sleeve 36 is fixedly connected to the inner ring of the handwheel 29. An internal spline 35 is fixedly connected to the back of the support sleeve 36. A support ring 37 is fixedly connected to the back of the internal spline 35, and a magnetic ring 38 is fixedly connected to the back of the support ring 37. By pushing the handwheel 29, the internal spline 35 can be disengaged from the external spline 34, and the magnetic attraction between the magnetic ring 33 and the magnetic ring 38 achieves self-locking, effectively preventing the clamping from loosening due to accidental contact with the handwheel 29, and ensuring the continuity and safety of the sampling process.

[0024] Furthermore, the inner ring of the inner spline 35 meshes with the outer ring of the outer spline 34, and the inner diameters of the second support ring 37 and the first support ring 32 are both larger than the outer diameter of the worm 28, thus ensuring that the worm 28 can rotate stably. The meshing of the inner spline 35 and the outer spline 34 ensures the effective transmission of power, while the size design of the first support ring 32 and the second support ring 37 provides the worm 28 with sufficient rotation space, ensuring smooth transmission without interference.

[0025] Furthermore, the support sleeve 36 has a hollow interior, and the back of the magnetic ring 2 38 and the front of the magnetic ring 1 33 are opposite magnetic poles. The hollow design of the support sleeve 36 reduces the overall weight, and the attraction force generated by the opposite poles of the magnetic ring 1 33 and the magnetic ring 2 38 can reliably maintain the locked state, thereby effectively limiting the handwheel 29 of the operating position.

[0026] In actual operation, when this device is used, the sampling valve 1 is first installed on the chemical engineering equipment. When it is necessary to sample the chemical engineering equipment, the sampling bottle can be screwed into the bottom of the sampling valve 1 to achieve the purpose of initial installation. Then, the handwheel 29 can be turned to drive the worm 28 to rotate. The worm 28 can drive the threaded rod 23 to rotate through the meshing of the worm wheel 27. Since the threads on the outer walls of the two ends are opposite in direction, and the rectangular plate 24 can slide and limit the movement on the inner wall of the slide groove 22, the rotational motion of the threaded rod 23 will be converted into the linear motion of the rectangular plate 24. The rectangular plate 24 can drive the arc block 26 to move through the fixed arm 25. The arc block 26 can clamp and position the sampling bottle to ensure the stability of the sampling bottle during the sampling process. The purpose of discharge sampling can be achieved through the sampling valve 1.

[0027] Pushing the handwheel 29 to move it backward causes the inner spline 35 to move backward via the support sleeve 36, preventing the inner spline 35 from engaging with the outer spline 34. Simultaneously, the second magnetic ring 38 moves closer to the first magnetic ring 33. When the first magnetic ring 33 contacts the second magnetic ring 38, they attract each other, limiting the support sleeve 36. At this point, the inner spline 35 is no longer engaged with the outer spline 34, thus preventing the handwheel 29 from driving the worm gear 28 to rotate. Similarly, when the inner spline 35 engages with the outer spline 34, the handwheel 29 can rotate the worm gear 28. After clamping the sampling bottle, the inner spline 35 is no longer engaged with the outer spline 34, preventing accidental rotation of the handwheel 29 and reducing the risk of the sampling bottle loosening.

Claims

1. A sampling device for chemical engineering, comprising a sampling valve (1), characterized in that: The sampling valve (1) is provided with a positioning mechanism (2) on the outside, and the positioning mechanism (2) is provided with a locking mechanism (3) on the front. The positioning mechanism (2) includes a right-angle plate (21), which is fixedly connected to the outer wall of the sampling valve (1). A slide groove (22) is fixedly connected to the bottom of the right-angle plate (21). A threaded rod (23) is rotatably connected to the inner wall of the slide groove (22). A rectangular plate (24) is threadedly connected to the outer wall of the threaded rod (23). A fixed arm (25) is fixedly connected to the front of the rectangular plate (24). An arc-shaped block (26) is fixedly connected to the inner side of the fixed arm (25). A worm gear (27) is fixedly connected to the outer wall of the threaded rod (23). A worm (28) meshes with the outer wall of the worm gear (27). A handwheel (29) is provided on the front of the locking mechanism (3).

2. A sampling device for chemical engineering according to claim 1, characterized in that: The two outer walls of the threaded rod (23) have opposite thread directions, and the rectangular plate (24) is slidably connected to the inner wall of the groove (22).

3. A sampling device for chemical engineering according to claim 1, characterized in that: The worm (28) passes through the front of the slide groove (22) and rotates, and the worm (28) is rotatably connected to the inner wall of the slide groove (22).

4. A sampling device for chemical engineering according to claim 1, characterized in that: Two arc-shaped blocks (26) are provided, and anti-slip textures are provided on the inner side of both arc-shaped blocks (26).

5. A sampling device for chemical engineering according to claim 1, characterized in that: The locking mechanism (3) includes a support plate (31), which is fixedly connected to the front of the slide groove (22). A support ring (32) is fixedly connected to the top of the support plate (31). A magnetic ring (33) is fixedly connected to the front of the support ring (32). An external spline (34) is fixedly connected to the outer wall of the worm (28). A support sleeve (36) is fixedly connected to the inner ring of the handwheel (29). An internal spline (35) is fixedly connected to the back of the support sleeve (36). A support ring (37) is fixedly connected to the back of the internal spline (35). A magnetic ring (38) is fixedly connected to the back of the support ring (37).

6. A sampling device for chemical engineering according to claim 5, characterized in that: The inner ring of the inner spline (35) meshes with the outer ring of the outer spline (34), and the inner ring diameters of the second support ring (37) and the first support ring (32) are both larger than the outer wall diameter of the worm (28).

7. A sampling device for chemical engineering according to claim 5, characterized in that: The support sleeve (36) has a hollow interior, and the back of the second magnetic ring (38) and the front of the first magnetic ring (33) are opposite magnetic poles.

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