Liquid chemical sampling device

Abstract

The utility model discloses a liquid chemical sampling device, which relates to the technical field of sampling devices and comprises a support vertical cylinder, the right side wall of the support vertical cylinder is provided with a strip hole, the inner side of the support vertical cylinder is movably connected with a square column, the upper end of the support vertical cylinder is provided with an adapter plate, the adapter plate is rotatably connected with a threaded rod, and the threaded rod is movably connected with the square column. The threaded rod is in threaded connection with the square column, opening supporting plates are uniformly arranged at the upper part and the lower part of the right end of the bracket vertical cylinder, sampling pipes are placed in the opening supporting plates, a supporting transverse plate is arranged at the right end of the bracket vertical cylinder and below the opening supporting plates, and a limiting square cylinder is arranged at the left part of the supporting transverse plate in a penetrating manner; a limiting square rod is movably connected into the limiting square barrel and penetrates through the notch supporting plate, and pipe sealing pressing plates are evenly arranged at the upper end of the limiting square rod. According to the liquid chemical sampling device, sampling pipes can be conveniently taken and placed, and liquid chemicals with different layer depths can be sampled at a time.

Description

Technical Field

[0001] The utility model relates to the technical field of sampling devices, in particular to a liquid chemical sampling device. Background Art

[0002] In chemical production, various tanks, pumps, pipes, and valves form a delivery system for liquid chemicals. Various liquid chemicals are mixed or reacted in various ways under the action of the delivery system. Considering the precision and risk characteristics of chemical production, it is necessary to conduct multi-point sampling and analysis of chemicals, and to produce with accurate data to avoid process accidents and production safety accidents. Some existing sampling devices will install the sampling tube on a structural device that can be raised and lowered, so that the sampling tube can be extended into and out of the container containing liquid chemicals for sampling, but only one sampling can be performed at a time. Sometimes it is necessary to sample at different depths in the container, which requires multiple samplings, which is inconvenient in operation. Utility Model Content

[0003] The purpose of the present utility model is to provide a liquid chemical sampling device to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a liquid chemical sampling device, comprising a bracket vertical cylinder, a strip hole is opened on the right side wall of the bracket vertical cylinder, a square column is movably connected to the inner side of the bracket vertical cylinder, an adapter plate is provided at the upper end of the bracket vertical cylinder, a threaded rod is rotatably connected to the adapter plate, the threaded rod is threadedly connected to the square column, notched support plates are evenly provided at the upper and lower ends of the right end of the bracket vertical cylinder, a sampling tube is placed in the notched support plate, and a supporting cross plate is provided at the right end of the bracket vertical cylinder and below the notched support plate. The left part of the supporting horizontal plate is penetrated by a limiting square cylinder, and the limiting square cylinder is movably connected to a limiting square rod, and the limiting square rod penetrates the notched supporting plate, and the upper end of the limiting square rod is evenly provided with a tube sealing pressure plate, and the middle part of the tube sealing pressure plate is provided with a liquid inlet hole. The right end of the square column and above the tube sealing pressure plate are evenly provided with a driving bar, and the driving bar penetrates the bar hole, and the lower right part of the driving bar is provided with a sealing pressure plate, and the lower end of the sealing pressure plate is provided with a vertical rod, and the vertical rod penetrates the liquid inlet hole, and the lower end of the vertical rod is provided with a lifting block.

[0005] Preferably, the lower ends of the tube sealing pressure plate and the sealing pressure plate are both provided with rubber pads.

[0006] Preferably, tension springs are symmetrically provided between the tube sealing pressure plate and the supporting transverse plate which are opposed to each other vertically.

[0007] Compared with the prior art, the beneficial effects of the present invention are as follows: a plurality of notched support plates are provided on the vertical cylinder of the bracket, and the sampling tube can be directly inserted into the notched support plates to facilitate the taking and placing of the sampling tube; the sampling tube can be pressed on the notched support plates by the pressure plate, and the upper end of the sampling tube can be sealed to facilitate the insertion of the sampling tube into the liquid chemical; by rotating the threaded rod to drive the square column to move upward, the sealing pressure plate and the tube sealing pressure plate can be driven up in turn; after the sealing pressure plate is moved up, the liquid can flow into the sampling tube; after the tube sealing pressure plate is moved up, the sampling tube will be loosened for easy taking and placing; the device can sample liquid chemicals at different depths at one time. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is a schematic diagram of the main cross-sectional structure of the sampling tube of the utility model when it is open.

[0009] Figure 2 This is a schematic diagram of the partial front cross-sectional structure of the sampling tube of the utility model when it is open.

[0010] Figure 3 This is a schematic diagram of the partial main cross-sectional structure of the sampling tube of the utility model when it is closed.

[0011] Figure 4 It is a schematic diagram of the local structure of the utility model.

[0012] In the figure: 1. Vertical cylinder of the bracket; 2. Square column; 3. Adapter plate; 4. Threaded rod; 5. Notched support plate; 6. Sampling tube; 7. Support cross plate; 8. Limiting square cylinder; 9. Limiting square rod; 10. Tube sealing pressure plate; 11. Driving bar; 12. Sealing pressure plate; 13. Vertical rod; 14. Lifting block; 15. Tension spring. DETAILED DESCRIPTION

[0013] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0014] See also Figure 1-4The utility model provides a technical solution: a liquid chemical sampling device, comprising a bracket vertical cylinder 1, a bar hole is opened on the right side wall of the bracket vertical cylinder 1, and a square column 2 is movably connected to the inner side of the bracket vertical cylinder 1. The bracket vertical cylinder 1 is square in cross section and the bar hole passes through the right side wall of the bracket vertical cylinder 1 from left to right. The bar hole is facing up and down, and the square column 2 is matched with the inner side wall of the bracket vertical cylinder 1 and can move up and down therein. An adapter plate 3 is provided at the upper end of the bracket vertical cylinder 1, and a threaded rod 4 is rotatably connected to the adapter plate 3. The threaded rod 4 is threadedly connected to the square column 2, and the adapter plate 3 is fixed to the upper end of the bracket vertical cylinder 1. The adapter plate 3 can be connected to an external lifting device to drive the device to move up and down and extend into and out of the chemical container. The threaded rod 4 passes through the adapter plate The outer wall of the threaded rod 4 is located at the upper and lower sides of the adapter plate 3 and is fixed with a protruding limit ring to limit the threaded rod 4 to the adapter plate 3. The upper end of the square column 2 is provided with an internal thread groove that matches the threaded rod 4. The square column 2 can be driven up and down by rotating the threaded rod 4 forward and backward. A handle or a motor can be added according to the situation to connect the threaded rod 4 to drive the threaded rod 4 to rotate in both directions forward and backward. The right end of the vertical cylinder of the bracket 1 is evenly provided with notched supporting plates 5, and a sampling tube 6 is placed in the notched supporting plate 5. A plurality of notched supporting plates 5 are arranged and fixed on the right end of the vertical cylinder of the bracket 1. The upper port of the sampling tube 6 is formed with an outwardly expanded outer ring. The right end of the notched supporting plate 5 is provided with a notch for inserting the sampling tube 6 therein. At the same time, the upper surface of the notched supporting plate 5 is also formed There is a groove for accommodating the outer ring of the sampling tube 6. The sampling tube 6 can be inserted from the right side and placed in the notched support plate 5. The liquid is held by the sampling tube 6. A supporting cross plate 7 is provided at the right end of the bracket vertical cylinder 1 and below the notched support plate 5. A limiting square cylinder 8 is penetrated on the left part of the supporting cross plate 7. A limiting square rod 9 is movably connected in the limiting square cylinder 8. The limiting square rod 9 penetrates the notched support plate 5. The upper end of the limiting square rod 9 is evenly provided with a sealing tube pressure plate 10. The middle part of the sealing tube pressure plate 10 is provided with a liquid inlet hole. Multiple supporting cross plates 7 are arranged up and down and fixed to the right end of the bracket vertical cylinder 1. There is a supporting cross plate 7 under each notched support plate 5. The limiting square cylinder 8 is penetrated and fixed on the supporting cross plate 7. The limiting square cylinder 8 is square in cross section. The limiting square rod 9 and the limiting square cylinder 8 fit together and can move up and down therein. A through hole is formed on the notch support plate 5 for the limiting square rod 9 to pass through. The tube sealing pressure plate 10 is fixed to the upper end of the limiting square rod 9. The tube sealing pressure plate 10 can be moved down and pressed onto the sampling tube 6 to block the upper end of the sampling tube 6. The liquid inlet hole passes through the tube sealing pressure plate 10 up and down, and the liquid can enter the sampling tube 6 from the liquid inlet hole through the tube sealing pressure plate 10. A driving bar 11 is evenly provided on the right end of the square column 2 and above the tube sealing pressure plate 10. The driving bar 11 passes through the bar hole. A sealing pressure plate 12 is provided on the right side of the lower end of the driving bar 11. A vertical rod 13 is provided at the lower end of the sealing pressure plate 12. The vertical rod 13 passes through the liquid inlet hole, and a lifting block 14 is provided at the lower end of the vertical rod 13.Multiple drive bars 11 are arranged vertically and fixed to the right end of the square column 2. The drive bars 11 will move up and down with the square column 2. A drive bar 11 is set above each tube sealing plate 10. The sealing plate 12 is fixed to the lower end of the drive bar 11. The sealing plate 12 is opposite to the liquid inlet hole on the tube sealing plate 10. When the sealing plate 12 moves downward, it can block the liquid inlet hole. The vertical rod 13 is fixed between the sealing plate 12 and the lifting block 14. The vertical rod 13 passes through the liquid inlet hole. The lifting block 14 is located on the lower side of the tube sealing plate 10. When the drive bar 11 moves upward, the lifting block 14 can pull the tube sealing plate 10 upward.

[0015] Specifically, rubber pads are provided at the lower ends of the tube sealing plate 10 and the sealing plate 12 to seal the ports between the tube sealing plate 10 and the sampling tube 6 and between the sealing plate 12 and the tube sealing plate 10 .

[0016] Specifically, a tension spring 15 is symmetrically provided between the upper and lower tube sealing pressure plate 10 and the supporting cross plate 7. The two ends of the tension spring 15 are fixed between the tube sealing pressure plate 10 and the supporting cross plate 7. The tension spring 15 will pull down the tube sealing pressure plate 10 and press the sampling tube 6 on the notched support plate 5 to prevent the sampling tube 6 from moving at will during sampling.

[0017] Working principle: forward rotation of the threaded rod 4 drives the square column 2 to move upward, so that the driving bar 11, the sealing pressure plate 12, the vertical rod 13 and the pulling block 14 move upward, and the pulling block 14 drives the tube sealing pressure plate 10 and the limiting square rod 9 to move upward, so that the pulling block 14 is higher than the notch support plate 5, and then the sampling tube 6 can be added to the notch support plate 5 from the right side of the notch support plate 5. After all the sampling tubes 6 are added, the reverse rotation of the threaded rod 4 drives the square column 2 to move downward, the sealing pressure plate 12 presses down the tube sealing pressure plate 10, and the tube sealing pressure plate 10 presses down the sampling tube 6 on the notch support plate 5 to block the upper port of the sampling tube 6, and then the device is extended into the liquid chemical container. The sealing plate 12 is separated from the sealing plate 10, and the liquid in the container can enter the sampling tube 6 from the liquid inlet on the sealing plate 10 to sample different depth positions. Then, the threaded rod 4 is reversed again to make the sealing plate 12 press down the sealing plate 10 to block the sampling tube 6, so as to avoid the liquid in the tube from being affected by the outside when taking out the device. Then, the device is taken out of the container, and the threaded rod 4 is rotated forward to make the lifting block 14 higher than the notch support plate 5, and then the sampling tube 6 can be removed from the notch support plate 5.

[0018] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A liquid chemical sampling device, comprising a support column (1), characterized in that: The right side wall of the support vertical cylinder (1) is provided with a strip hole, the inner side of the support vertical cylinder (1) is movably connected to a square column (2), the upper end of the support vertical cylinder (1) is provided with an adapter plate (3), the adapter plate (3) is rotatably connected to a threaded rod (4), the threaded rod (4) is threadedly connected to the square column (2), the right end of the support vertical cylinder (1) is evenly provided with notched supporting plates (5) above and below, a sampling tube (6) is placed in the notched supporting plate (5), the right end of the support vertical cylinder (1) and below the notched supporting plate (5) are provided with a supporting horizontal plate (7), the left part of the supporting horizontal plate (7) is penetrated by a limiting square cylinder (8), the limiting square cylinder ( 8) is movably connected with a limiting square rod (9), the limiting square rod (9) passes through the notched support plate (5), the upper end of the limiting square rod (9) is evenly provided with a tube sealing pressure plate (10), the middle part of the tube sealing pressure plate (10) is provided with a liquid inlet hole, the right end of the square column (2) and above the tube sealing pressure plate (10) are evenly provided with a driving bar (11), the driving bar (11) passes through the bar hole, the lower right part of the driving bar (11) is provided with a sealing pressure plate (12), the lower end of the sealing pressure plate (12) is provided with a vertical rod (13), the vertical rod (13) passes through the liquid inlet hole, and the lower end of the vertical rod (13) is provided with a lifting block (14).

2. A liquid chemical sampling device according to claim 1, characterized in that: The lower ends of the tube sealing pressing plate (10) and the sealing pressing plate (12) are both provided with rubber pads.

3. The liquid chemical sampling device according to claim 1, characterized in that: Tension springs (15) are symmetrically provided front-to-back between the tube sealing pressing plate (10) and the supporting transverse plate (7) that are opposed to each other.

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