Tetraethyl orthosilicate negative pressure sampling device

Abstract

The utility model provides a tetraethyl orthosilicate negative pressure sampling device belongs to sampling device technical field. Including bottom plate, sampling jar, apron subassembly and filter component, bottom plate is rectangular, sampling jar is cylindrical, apron subassembly sets up between bottom plate and sampling jar, apron subassembly includes apron, the bottom fixed connection of apron has outer thread ring board, the top of sampling jar has seted up inner thread ring hole, the outer thread ring board and inner thread ring hole between screw thread adaptation, filter component sets up at the top of apron, through setting apron subassembly, can with the inside of sampling jar fixed, can pass through rotating lever and stirring rod etc. of apron to the sample in the inside of sampling jar stirs, further can avoid sample to take place deposit, filter component can filter the sample adsorbed to the inside of sampling jar, avoids the influence that the lumpy material of condensation causes to the detection result of sample.

Description

Technical Field

[0001] This utility model relates to the field of sampling device technology, and in particular to a tetraethyl orthosilicate negative pressure sampling device. Background Technology

[0002] Tetraethyl orthosilicate, an important organosilicon compound, is widely used in coatings, adhesives, ceramic materials, and semiconductor packaging. During the production, storage, and application of tetraethyl orthosilicate, it is necessary to sample and test key indicators such as purity, impurity content, and molecular structure to ensure that product quality meets process requirements. In actual use, after the sample enters the sampling container, it may precipitate if left to stand for a long time, which will lead to uneven sample concentration and affect the actual test results. At the same time, during the sampling process, the sample may condense, and the condensed clumps may be drawn into the sampling container, which will affect the test results and is very inconvenient. Therefore, this application provides a tetraethyl orthosilicate negative pressure sampling device to meet the requirements. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a negative pressure sampling device for tetraethyl orthosilicate, which can prevent the liquid after sampling from settling inside the sampling tank and prevent the sample from condensing during the sampling process, thus preventing inaccurate test results.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A tetraethyl orthosilicate negative pressure sampling device includes a base plate, wherein the base plate is rectangular in shape; A sampling container, wherein the sampling container is cylindrical in shape; A cover plate assembly is disposed between a base plate and a sampling container. The cover plate assembly includes a cover plate, the bottom of which is fixedly connected to an externally threaded ring plate. An internally threaded ring hole is provided at the top of the sampling container. The externally threaded ring plate and the internally threaded ring hole are threadedly matched. A filter assembly is disposed on the top of a cover plate. The filter assembly includes a circular groove and a cylindrical frame. The circular groove is opened on the top of the cover plate. An annular retaining plate is fixedly connected to the bottom of the cylindrical frame. The outer surface of the annular retaining plate is engaged and adapted with the inner wall of the circular groove. A filter hole circular plate is fixedly connected to the inner wall of the circular groove. A suction tube is installed on the top of the cylindrical frame. A limiting component is disposed on the top of the base plate.

[0005] The cover assembly can agitate the liquid inside the sampling vessel, thus preventing the sample solution from settling inside. The filter assembly can filter the solution adsorbed into the sampling vessel, preventing clumps from adsorbing into the vessel and affecting the test results.

[0006] Optionally, a rotating rod is rotatably connected to the top of the cover plate, and a first operating block is fixedly connected to the top end of the rotating rod.

[0007] Under the action of the first operating block, the rotating rod can be driven to rotate, and the first operating block provides the force point for operating the rotating rod.

[0008] Optionally, a plurality of connecting circular blocks arranged equidistantly along the axial direction are fixedly connected to the outer surface of the rotating rod, and a stirring rod is fixedly connected to the outer surface of the connecting circular blocks.

[0009] The connecting block allows the stirring rod to connect with the rotating rod, thus driving the stirring rod to rotate as the rotating rod rotates.

[0010] Optionally, a negative pressure pump is installed on the top of the base plate, and an air pipe is installed at the output end of the negative pressure pump. The end of the air pipe away from the negative pressure pump is installed with the cover plate.

[0011] A negative pressure pump can be used in conjunction with an air tube to remove air from inside the sampling container, thereby creating a negative pressure space inside the sampling container.

[0012] Optionally, an annular plate is fixedly connected at the connection between the cylindrical frame and the annular plate. A second screw hole is provided at the top of the annular plate, and a first screw hole is provided at the top of the cover plate. Threaded clamping rods are threadedly connected to the inner walls of the first and second screw holes.

[0013] The threaded clamp can be fixed to the first and second threaded holes, thereby allowing the annular plate to be fixed to the cover plate.

[0014] Optionally, the limiting component includes a fixing ring plate, the bottom of which is fixedly connected to the top of the base plate.

[0015] The fixed ring plate allows the sampling container to engage with it, thus initially fixing the sampling container to the inner wall of the fixed ring plate.

[0016] Optionally, L-shaped plates are fixedly connected to both sides of the fixed ring plate, and a threaded rod is threadedly connected to the inner wall of the L-shaped plate. A second operating block is fixedly connected to one end of the threaded rod, and a rubber block is fixedly connected to the other end of the threaded rod. A rectangular protrusion is fixedly connected to the outer surface of the second operating block.

[0017] The threaded rod can drive the rubber block to move, thereby clamping and fixing the sampling canister that is limited inside the fixed ring plate.

[0018] Compared with the prior art, this utility model has at least the following beneficial effects: By setting up a cover assembly, it can be fixed to the inside of the sampling container. At the same time, the sample inside the sampling container can be stirred by components such as the rotating rod and stirring rod on the cover, thereby preventing the sample from settling. The filter assembly can filter the sample adsorbed into the sampling container to prevent the condensed lumps from affecting the sample test results. By setting a limiting component, the sampling container can be fixed to the top of the base plate. At the same time, under the clamping action of components such as rubber blocks, the sampling container can be firmly fixed inside the fixing ring plate, thereby preventing the sampling container from shifting its position during the sampling process. Attached Figure Description The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present invention and, together with the specification, further serve to explain the principles of the present invention and enable those skilled in the art to implement and use the present invention.

[0019] Figure 1 This is a schematic diagram of a tetraethyl orthosilicate negative pressure sampling device. Figure 2 A schematic diagram of the cover plate structure of the tetraethyl orthosilicate negative pressure sampling device; Figure 3 A schematic diagram of the sampling tank structure of a tetraethyl orthosilicate negative pressure sampling device; Figure 4 A schematic diagram of the cylindrical frame structure of a tetraethyl orthosilicate negative pressure sampling device; Figure 5 This is a schematic diagram of the fixed ring plate structure of the tetraethyl orthosilicate negative pressure sampling device.

[0020] [Figure Labels] 1. Base plate; 2. Sampling container; 3. Cover plate assembly; 31. Cover plate; 32. External threaded ring plate; 33. Internal threaded ring hole; 34. Rotating rod; 35. First operating block; 36. Connecting block; 37. Stirring rod; 38. Negative pressure pump; 39. Air pipe; 4. Filter assembly; 41. Circular groove; 42. Filter hole circular plate; 43. Annular clamping plate; 44. Annular plate; 45. Cylindrical frame; 46. Suction tube; 47. First screw hole; 48. Second screw hole; 49. Threaded clamping rod; 5. Limiting component; 51. Fixing ring plate; 52. L-shaped plate; 53. Threaded rod; 54. Operating round block; 55. Rubber round block; 56. Rectangular protrusion.

[0021] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiment of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0022] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0023] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0024] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this technology based on the specific circumstances.

[0025] In the description of this application, spatial relation terms such as "below," "under," "below," "below," "above," "over," etc., are used herein to describe the relationship between one element or feature shown in the figures and other elements or features. It should be understood that, in addition to the orientation shown in the figures, spatial relation terms also include different orientations of the device in use and operation. For example, if the device in the figures is flipped, an element or feature described as "below" or "under" or "below" of other elements or features will be oriented "above" other elements or features. Therefore, the exemplary terms "below" and "under" can include both upper and lower orientations. Furthermore, the device may also include other orientations (e.g., rotated 90 degrees or other orientations), and the spatial descriptive terms used herein are interpreted accordingly.

[0026] In the description of this application, the term "for example" is used to mean "used as an example, illustration, or description." Any embodiment described as "for example" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to implement and use the present invention. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that the present invention can be implemented without using these specific details. In other instances, well-known structures and processes will not be described in detail to avoid obscuring the description of the present invention with unnecessary detail. Therefore, the present invention is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0027] The tetraethyl orthosilicate negative pressure sampling device provided in this embodiment aims to solve the problems of liquid precipitation inside the sampling tank 2 after sampling and sample condensation during the sampling process, which leads to inaccurate test results. The device provides the following technical solution to address the problems of liquid precipitation and sample condensation. It consists of a base plate 1, a sampling tank 2, a cover plate assembly 3, a filter assembly 4, and a limiting assembly 5. These components work together to ensure uniform mixing of the sample inside the sampling tank 2 and to prevent clumped sample from entering the sampling tank 2.

[0028] like Figures 1-5 As shown, an embodiment of this utility model provides a tetraethyl orthosilicate negative pressure sampling device, such as... Figure 1 As shown, the device includes a base plate 1, a sampling container 2, a cover assembly 3, a filter assembly 4, and a limiting assembly 5. The base plate 1 is a rectangular plate structure used to provide overall support for the device. The sampling container 2 is a cylindrical structure with openings at both ends, used to contain the tetraethyl orthosilicate to be sampled. Figure 1 , Figure 2 and Figure 3 As shown, the cover assembly 3 is sealed between the base plate 1 and the sampling container 2. The cover assembly 3 includes a cover plate 31, and an externally threaded ring plate 32 is coaxially fixedly connected to the bottom of the cover plate 31. An internally threaded ring hole 33 adapted to the externally threaded ring plate 32 is opened on the inner wall of the top port of the sampling container 2. The externally threaded ring plate 32 and the internally threaded ring hole 33 are screwed together to achieve a detachable and sealed connection between the cover plate 31 and the sampling container 2. Figure 1 , Figure 2 and Figure 4As shown, the filter assembly 4 is fixedly installed on the top of the cover plate 31 for filtering the tetraethyl orthosilicate entering the sampling tank 2. The filter assembly 4 includes a circular groove 41 and a cylindrical frame 45. The circular groove 41 is coaxially opened in the central area of ​​the top of the cover plate 31. An annular retaining plate 43 is coaxially fixedly connected to the bottom of the cylindrical frame 45. The outer surface of the annular retaining plate 43 and the inner wall of the circular groove 41 are clamped and positioned by an interference fit. A filter hole circular plate 42 is fixedly connected to the middle of the inner wall of the circular groove 41. The surface of the filter hole circular plate 42 is uniformly opened with micron-sized filter holes for filtering impurities. A suction tube 46 is coaxially installed at the top center of the cylindrical frame 45. One end of the suction tube 46 is connected to the inside of the cylindrical frame 45, and the other end is used to connect to the tetraethyl orthosilicate supply pipeline. Figure 1 As shown, the limiting component 5 is fixedly installed on the top edge area of ​​the base plate 1 to limit and fix the radial position of the sampling tank 2.

[0029] The sample solution inside the mixing tank 2 can be stirred evenly by the stirring component on the cover plate assembly 3, and the filter assembly 4 can filter out the lumpy material in the sample solution to prevent it from entering the sample tank 2.

[0030] like Figure 1 and Figure 2 As shown, a rotating rod 34 is rotatably connected to the top center area of ​​the cover plate 31. The top end of the rotating rod 34 extends above the cover plate 31 and is fixedly connected to a first operating block 35. The bottom end of the rotating rod 34 extends into the sampling container 2. By rotating the first operating block 35, the rotating rod 34 can be driven to rotate around its own axis.

[0031] like Figure 1 and Figure 2 As shown, a number of connecting round blocks 36 are fixedly connected to the outer surface of the rotating rod 34 inside the sampling container 2. The connecting round blocks 36 are equidistantly arranged along the axial direction of the rotating rod 34. Three stirring rods 37 are uniformly fixedly connected to the outer surface of each connecting round block 36 in the circumferential direction. When the stirring rods 37 rotate with the rotating rod 34, they can stir the tetraethyl orthosilicate in the sampling container 2.

[0032] like Figure 1 , Figure 2 and Figure 5 As shown, a negative pressure pump 38 is fixedly installed on one side of the top of the base plate 1. The output end of the negative pressure pump 38 is sealed and connected to an air pipe 39. The end of the air pipe 39 away from the negative pressure pump 38 passes through the cover plate 31 and is sealed and fixed to the cover plate 31. The port of the air pipe 39 extends into the inside of the sampling tank 2. The negative pressure pump 38 can draw air from the sampling tank 2 to form a negative pressure environment.

[0033] like Figure 1 , Figure 2 and Figure 4As shown, an annular plate 44 is coaxially fixedly connected to the connection between the cylindrical frame 45 and the annular plate 43. The bottom of the annular plate 44 fits against the top of the cover plate 31. Four second screw holes 48 are evenly opened on the surface of the annular plate 44 along the circumference. A first screw hole 47 is opened on the top of the cover plate 31 at the position corresponding to the second screw holes 48. The inner walls of the first screw hole 47 and the second screw hole 48 are threaded together with a threaded clamp 49. The annular plate 44 and the cover plate 31 can be detachably fixed through the threaded clamp 49.

[0034] like Figure 1 and Figure 5 As shown, the limiting component 5 includes a fixing ring plate 51, which has a circular structure. Its bottom is coaxially fixedly connected to the top of the base plate 1. The inner wall of the fixing ring plate 51 is clearance-fitted with the outer surface of the sampling can 2 to limit the radial displacement of the sampling can 2.

[0035] Such as 1 and Figure 5 As shown, two L-shaped plates 52 are symmetrically fixed to the outer surface of the fixed ring plate 51 along the circumference. The horizontal section of each L-shaped plate 52 is arranged radially along the fixed ring plate 51, and the inner wall of the horizontal section of the L-shaped plate 52 is provided with a threaded hole. A threaded rod 53 is threadedly connected to the inner wall of the threaded hole. One end of the threaded rod 53 extends to the outside of the L-shaped plate 52 and is fixedly connected to a second operating block 54. The other end of the threaded rod 53 extends to the inside of the fixed ring plate 51 and is fixedly connected to a rubber block 55. The end face of the rubber block 55 is in contact with the outer surface of the sampling container 2. At least four rectangular protrusions 56 are uniformly fixed to the outer surface of the second operating block 54 along the circumference to increase the friction of hand operation.

[0036] Working principle like Figures 1-5 As shown, the external threaded ring plate 32 at the bottom of the cover plate 31 is rotated and fixed to the internal threaded ring hole 33 at the top of the sampling tank 2; Engage the annular plate 43 with the circular groove 41, adjust the position to align the first screw hole 47 and the second screw hole 48, and rotate and fix the threaded rod 49 with the first screw hole 47 and the second screw hole 48, thereby enabling the installation of components such as the cylindrical frame 45. At this time, the sampling container 2 is placed on the inner wall of the fixed ring plate 51, and the threaded rod 53 is rotated so that the rubber block 55 can fix the sampling container 2. At this time, the negative pressure pump 38 is activated, and together with the air tube 39, a negative pressure space is formed inside the sampling tank 2, so that the liquid can flow into the inside of the sampling tank 2 and then be filtered by the filter plate 42, so that the blocky objects inside the sample solution are filtered out. Rotating the first operating block 35 causes the rotating rod 34 to drive the connecting block 36 and the stirring rod 37 to rotate, thereby stirring the sample solution inside the sampling container 2.

[0037] While embodiments or examples of this disclosure have been described with reference to the accompanying drawings, it should be understood that the above embodiments are merely exemplary embodiments or examples, and the scope of this utility model is not limited by these embodiments or examples, but only by the granted claims and their equivalents. Various elements in the embodiments or examples may be omitted or replaced by their equivalents. Furthermore, the steps may be performed in a different order than that described in this disclosure. Further, various elements in the embodiments or examples may be combined in various ways. Importantly, as the technology evolves, many elements described herein can be replaced by equivalents that appear after this disclosure.

Claims

1. A tetraethyl orthosilicate negative pressure sampling device, characterized by, include: The base plate (1) is rectangular in shape; Sampling container (2), wherein the sampling container (2) is cylindrical; A cover plate assembly (3) is disposed between a base plate (1) and a sampling container (2). The cover plate assembly (3) includes a cover plate (31). An external threaded ring plate (32) is fixedly connected to the bottom of the cover plate (31). An internal threaded ring hole (33) is provided on the top of the sampling container (2). The external threaded ring plate (32) and the internal threaded ring hole (33) are threadedly matched. The filter assembly (4) is disposed on the top of the cover plate (31). The filter assembly (4) includes a circular groove (41) and a cylindrical frame (45). The circular groove (41) is opened on the top of the cover plate (31). An annular retaining plate (43) is fixedly connected to the bottom of the cylindrical frame (45). The outer surface of the annular retaining plate (43) is fitted with the inner wall of the circular groove (41). A filter hole circular plate (42) is fixedly connected to the inner wall of the circular groove (41). A suction tube (46) is installed on the top of the cylindrical frame (45). Limiting component (5), which is disposed on the top of the base plate (1).

2. The tetraethyl orthosilicate negative pressure sampling device of claim 1, wherein, The top of the cover plate (31) is rotatably connected to a rotating rod (34), and the top of the rotating rod (34) is fixedly connected to a first operating block (35).

3. The tetraethyl orthosilicate negative pressure sampling device according to claim 2, characterized in that, The outer surface of the rotating rod (34) is fixedly connected to a plurality of connecting circular blocks (36) arranged equidistantly along the axial direction, and the outer surface of the connecting circular blocks (36) is fixedly connected to a stirring rod (37).

4. The tetraethyl orthosilicate negative pressure sampling device according to claim 1, characterized in that, A negative pressure pump (38) is installed on the top of the base plate (1), and an air pipe (39) is installed at the output end of the negative pressure pump (38). The end of the air pipe (39) away from the negative pressure pump (38) is installed with the cover plate (31).

5. The tetraethyl orthosilicate negative pressure sampling device according to claim 1, characterized in that, An annular plate (44) is fixedly connected at the connection between the cylindrical frame (45) and the annular plate (43). A second screw hole (48) is provided on the top of the annular plate (44), and a first screw hole (47) is provided on the top of the cover plate (31). A threaded rod (49) is threadedly connected to the inner wall of the first screw hole (47) and the second screw hole (48).

6. The tetraethyl orthosilicate negative pressure sampling device according to claim 1, characterized in that, The limiting component (5) includes a fixing ring plate (51), the bottom of which is fixedly connected to the top of the base plate (1).

7. The tetraethyl orthosilicate negative pressure sampling device of claim 6, wherein, The fixed ring plate (51) is fixedly connected to both sides of an L-shaped plate (52), and the inner wall of the L-shaped plate (52) is threadedly connected to a threaded rod (53). One end of the threaded rod (53) is fixedly connected to a second operating block (54), and the other end of the threaded rod (53) is fixedly connected to a rubber block (55). The outer surface of the second operating block (54) is fixedly connected to a rectangular protrusion (56).

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