Sampling device for liquid metering

Abstract

The utility model discloses a sampling device for liquid metering, which comprises a mounting cylinder, six groups of lifting grooves are arranged in the mounting cylinder, lifting blocks are slidably connected in the lifting grooves, threaded rods are in threaded connection in the lifting blocks, and the lower parts of the threaded rods are rotatably connected in the lifting grooves. A collecting cylinder is fixedly connected to the outer side of the lifting block, a piston is slidably connected to the interior of the collecting cylinder, a pulling rod is fixedly connected to the upper portion of the piston, a threaded cylinder is slidably connected to the outer side of the pulling rod, and a pulling plate is fixedly connected to the upper portion of the threaded cylinder.

Description

Technical Field

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

[0002] Liquid sampling is an important process involving multiple industries and fields, and its accuracy and reliability are crucial for subsequent analysis, testing, and quality control.

[0003] Existing liquid testing and measurement sampling devices have a simple structure, and most existing liquid sampling devices are inconvenient to sample liquids at different depths, resulting in a lack of comparability in liquid sampling and testing, and the amount of liquid extracted in a single operation cannot be adjusted. Utility Model Content

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

[0005] To achieve the above objectives, this utility model provides the following technical solution: a sampling device for liquid metering, comprising an installation cylinder, wherein six sets of lifting grooves are provided inside the installation cylinder, a lifting block is slidably connected inside the lifting groove, a threaded rod is threadedly connected inside the lifting block, the lower part of the threaded rod is rotatably connected inside the lifting groove, a collection cylinder is fixedly connected to the outside of the lifting block, a piston is slidably connected inside the collection cylinder, a pulling rod is fixedly connected to the upper part of the piston, a threaded cylinder is slidably connected to the outside of the pulling rod, and a pulling plate is fixedly connected to the upper part of the threaded cylinder.

[0006] Preferably, a connecting rod is fixedly connected to the upper part of the pulling rod, and a connecting groove is provided on both sides of the threaded cylinder. The connecting rod is slidably connected inside the connecting groove, and two sets of positioning nuts are threadedly connected to the outer side of the threaded cylinder. The two sets of positioning nuts are arranged on both sides of the connecting rod.

[0007] Preferably, limiting plates are fixedly connected to both sides of the front side of the lifting block.

[0008] Preferably, a sliding rod is fixedly connected to the lower inner side of the mounting cylinder, the sliding rod is slidably connected to the inside of the pull plate, and a positioning piece is fixedly connected to the upper part of the sliding rod.

[0009] Preferably, the sliding rod has several sets of positioning holes on its outer side, an adjusting plate is slidably connected to the outer side of the sliding rod, a control groove is formed on both sides inside the adjusting plate, a sliding plate is slidably connected inside the control groove, a locking rod is fixedly connected to one side of the sliding plate, a protrusion that matches the positioning hole is fixedly connected to the other end of the locking rod, a spring is fixedly connected between the sliding plate and the inner wall of the control groove, and the spring is sleeved on the outer side of the locking rod.

[0010] Preferably, two sets of embedded blocks are fixedly connected to the upper outer side of the sliding rod, and the embedded blocks are slidably connected inside the pull plate and the adjusting plate.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model uses a rotating threaded rod to drive the lifting block to move up and down along the lifting groove, thereby adjusting the installation height of the collection cylinder. When the collection cylinder moves up and down, the pulling rod drives the connecting rod to move up and down along the connecting groove. By rotating the positioning nuts on both sides, the positioning nuts on both sides are fixed to the sides of the connecting rod. By moving the pulling plate upward, the threaded cylinder drives the piston upward through the pulling rod, allowing the liquid to enter the collection cylinder. This allows for simultaneous sampling of liquid at different heights, improving the comparability of the samples.

[0013] 2. This utility model also allows for the adjustment plate to move up and down along the outside of the sliding rod. When the locking rod inside the sliding plate is aligned with the positioning hole, the spring pulls the sliding plate to insert the locking rod into the positioning hole, thereby controlling the maximum upward movement distance of the pulling plate and controlling the amount of liquid collected in the collecting cylinder, thus achieving quantitative sampling. Attached Figure Description

[0014] Figure 1 This is a first-view three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a second-view three-dimensional structural cross-sectional view of the present invention;

[0016] Figure 3 This is a schematic diagram of the third-view positioning nut structure of this utility model;

[0017] Figure 4 This is a cross-sectional view of the fourth perspective adjustment plate structure of this utility model.

[0018] In the diagram: 1. Mounting cylinder; 2. Lifting groove; 3. Lifting block; 4. Collecting cylinder; 5. Piston; 6. Pulling rod; 7. Connecting rod; 8. Threaded cylinder; 9. Connecting groove; 10. Positioning nut; 11. Threaded rod; 12. Pulling plate; 13. Limiting plate; 14. Sliding rod; 15. Positioning plate; 16. Positioning hole; 17. Adjusting plate; 18. Spring; 19. Embedded block; 20. Control groove; 21. Sliding plate; 22. Locking rod; 23. Protrusion. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-4 This utility model provides a technical solution: a sampling device for liquid metering, including an installation cylinder 1, with six sets of lifting grooves 2 inside the installation cylinder 1, lifting blocks 3 slidably installed inside the lifting grooves 2, and threaded rods 11 threadedly installed inside the lifting blocks 3. The lower part of the threaded rods 11 is rotatably connected to the inside of the lifting grooves 2. A collection cylinder 4 is fixedly welded to the outside of the lifting blocks 3. By rotating the threaded rods 11, the lifting blocks 3 are driven to move up and down along the lifting grooves 2, thereby adjusting the installation height of the collection cylinder 4. A piston 5 is slidably installed inside the collection cylinder 4, and a pulling rod 6 is fixedly welded to the upper part of the piston 5. A threaded cylinder 8 is slidably installed on the outside of the pulling rod 6, and a pulling plate 12 is fixedly welded to the upper part of the threaded cylinder 8. By moving the pulling plate 12 upward, the threaded cylinder 8 drives the piston 5 upward through the pulling rod 6, allowing the liquid to enter the collection cylinder 4.

[0021] A connecting rod 7 is fixedly welded to the upper part of the pull rod 6. A connecting groove 9 is provided on both sides of the threaded cylinder 8. The connecting rod 7 is slidably installed inside the connecting groove 9. Two sets of positioning nuts 10 are threadedly installed on the outer side of the threaded cylinder 8. The two sets of positioning nuts 10 are located on both sides of the connecting rod 7. When the collecting cylinder 4 moves up and down, the pull rod 6 drives the connecting rod 7 to move up and down along the connecting groove 9. By rotating the positioning nuts 10 on both sides, the positioning nuts 10 are fixed to both sides of the connecting rod 7, thus ensuring that the collecting cylinder 4 can drive the pull rod 6 to move up and down when it moves. Limiting plates 13 are fixedly welded to both sides of the front of the lifting block 3 to prevent the lifting block 3 from rotating with the threaded rod 11. A sliding rod 14 is fixedly welded to the lower inner side of the mounting cylinder 1. The sliding rod 14 is slidably installed inside the pull plate 12. A positioning plate 15 is fixedly welded to the upper part of the sliding rod 14 to limit the upward limit distance of the pull plate 12. Several sets of positioning holes 16 are provided on the outer side of the sliding rod 14. An adjusting plate 17 is slidably installed on the outer side of the sliding rod 14. Two positioning holes 16 are provided inside the adjusting plate 17. A control groove 20 is provided on the side, and a sliding piece 21 is slidably connected inside the control groove 20. A locking rod 22 is fixedly welded to one side of the sliding piece 21, and a protrusion 23 that mates with the positioning hole 16 is fixedly welded to the other end of the locking rod 22. A spring 18 is fixedly welded between the sliding piece 21 and the inner wall of the control groove 20. The spring 18 is sleeved on the outside of the locking rod 22. By moving the adjusting piece 17 up and down along the outside of the sliding rod 14, when the locking rod 22 inside the sliding piece 21 is aligned with the positioning hole 16, the spring 18 is pulled. The sliding plate 22 allows the locking rod 22 to be inserted into the inverted positioning hole 16, thereby controlling the maximum upward movement distance of the pulling plate 12 and controlling the amount of liquid collected in the collecting cylinder 4. The protrusion 23 facilitates the locking rod 22 to overcome the elastic force of the spring 18 and disengage from the positioning hole 16 under manual pushing. Two sets of embedded blocks 19 are fixedly welded to the upper outer side of the sliding rod 14. The embedded blocks 19 are slidably installed inside the pulling plate 12 and the adjusting plate 17 to prevent the adjusting plate 17 from rotating, so that the locking rod 22 cannot be aligned with the positioning hole 16.

[0022] Working principle: In use, the screw rod 11 is rotated to drive the lifting block 3 to move up and down along the lifting groove 2, thereby adjusting the installation height of the collection cylinder 4. When the collection cylinder 4 moves up and down, the pulling rod 6 drives the connecting rod 7 to move up and down along the connecting groove 9. By rotating the two side positioning nuts 10, the two side positioning nuts 10 are fixed to the two sides of the connecting rod 7. By moving the pulling plate 12 upward, the screw cylinder 8 drives the piston 5 to move upward through the pulling rod 6, allowing the liquid to enter the collection cylinder 4. By moving the adjusting plate 17 up and down along the outside of the sliding rod 14, when the locking rod 22 inside the sliding plate 21 is aligned with the positioning hole 16, the spring 18 pulls the sliding plate 22, causing the locking rod 22 to be inserted into the positioning hole 16, thereby controlling the limit distance of the upward movement of the pulling plate 12 and controlling the amount of liquid collected in the collection cylinder 4.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sampling device for liquid metering comprising a mounting cylinder (1), characterised in that: The installation cylinder (1) is internally provided with six groups of lifting grooves (2), the lifting grooves (2) are internally and slidably connected with lifting blocks (3), the lifting blocks (3) are internally and threadedly connected with threaded rods (11), the threaded rods (11) are rotatably connected to the inside of the lifting grooves (2), the lifting blocks (3) are fixedly connected with collecting cylinders (4) on the outside, the collecting cylinders (4) are internally and slidably connected with pistons (5), the pistons (5) are fixedly connected with pulling rods (6) on the upper portion, the pulling rods (6) are slidably connected with threaded cylinders (8) on the outside, the threaded cylinders (8) are fixedly connected with pulling plates (12) on the upper portion.

2. A sampling device for liquid metering according to claim 1, characterized in that: The pulling rods (6) are fixedly connected with connecting rods (7) on the upper portion, the threaded cylinders (8) are provided with communicating grooves (9) on the two sides, the connecting rods (7) are slidably connected in the communicating grooves (9), the threaded cylinders (8) are threadedly connected with two groups of positioning nuts (10) on the outside, and the two groups of positioning nuts (10) are arranged on the two sides of the connecting rods (7).

3. A sampling device for liquid metering according to claim 1, characterized in that: The lifting blocks (3) are fixedly connected with limiting pieces (13) on the two sides of the front side.

4. A sampling device for liquid metering according to claim 1, characterized in that: The installation cylinder (1) is fixedly connected with a sliding rod (14) on the inner side of the lower portion, the sliding rod (14) is slidably connected in the pulling plate (12), and the sliding rod (14) is fixedly connected with a positioning piece (15) on the upper portion.

5. A sampling device for liquid metering according to claim 4, characterized in that: The sliding rod (14) is provided with a plurality of positioning holes (16) on the outside, the sliding rod (14) is slidably connected with an adjusting piece (17) on the outside, the adjusting piece (17) is provided with control grooves (20) on the two sides in the inside, the control grooves (20) are slidably connected with sliding pieces (21) in the inside, the sliding pieces (21) are fixedly connected with locking rods (22) on one side, the locking rods (22) are fixedly connected with convex heads (23) matched with the positioning holes (16) on the other end, the sliding pieces (21) and the control grooves (20) are fixedly connected with springs (18) between the inner walls, and the springs (18) are sleeved on the outside of the locking rods (22).

6. A sampling device for liquid metering according to claim 5, characterized in that: The sliding rod (14) is fixedly connected with two groups of embedding blocks (19) on the outside of the upper portion, and the embedding blocks (19) are slidably connected in the pulling plate (12) and the adjusting piece (17).

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