Liquid sampling device for chemical inspection

Abstract

The utility model discloses a liquid sampling device for chemical inspection, which belongs to the technical field of chemical inspection and comprises a sampling barrel for sampling liquid for chemical inspection, a piston rod is slidably arranged in the sampling barrel, circular holes are symmetrically formed in the top surface of the sampling barrel, sliding rods are slidably connected in the circular holes, and the piston rod is slidably connected with the sliding rods. A rectangular frame is fixedly connected between the outer sides of the two sliding rods, the outer wall of the sampling barrel is slidably sleeved with a rectangular scraping plate, the inner wall of the rectangular scraping plate is slidably attached to the outer wall of the sampling barrel, and connecting rods are symmetrically and fixedly connected between the rectangular frame and the rectangular scraping plate. Compared with the prior art, the device can conveniently and effectively clean residual chemical liquid on the outer wall of the sampling barrel, so that the liquid is prevented from dropping to the ground to cause pollution when the sampling barrel moves.

Description

Technical Field

[0001] The utility model belongs to the technical field of chemical inspection, in particular to a liquid sampling device used for chemical inspection. Background Art

[0002] After the liquid chemicals are prepared, they need to be tested. During the test, a sampling device is needed to sample the liquid chemicals. Currently, when sampling non-corrosive liquid chemicals, the staff directly takes the sampling tube to sample.

[0003] Existing liquid sampling devices for chemical inspection mostly insert a sampling tube directly into the interior of the chemical liquid to be sampled, and then pull the piston rod inside the sampling tube to extract the liquid for sampling. However, this sampling method causes a large amount of chemical liquid residue to adhere to the outer wall of the sampling tube when the chemical liquid is removed, which needs to be cleaned separately. In addition, when the sampling tube is moved, dripping may occur, causing pollution to the environment. Utility Model Content

[0004] The purpose of the utility model is to provide a liquid sampling device for chemical inspection to solve the problems raised in the background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a liquid sampling device for chemical inspection, comprising a sampling cylinder for liquid sampling in chemical inspection, a piston rod being slidably arranged in the sampling cylinder, a circular hole being symmetrically opened on the top surface of the sampling cylinder, a sliding rod being slidably connected to the inside of the circular hole, and a rectangular frame being fixedly connected between the outer sides of two sliding rods;

[0006] The outer wall of the sampling tube is slidably sleeved with a rectangular scraper, the inner wall of the rectangular scraper is slidably fitted with the outer wall of the sampling tube, and a connecting rod is symmetrically fixedly connected between the rectangular frame and the rectangular scraper.

[0007] Preferably, a rectangular rubber pad is fixedly connected to the lower end of the inner wall of the rectangular scraper, and the rectangular rubber pad is slidably fitted to the outer wall of the sampling cylinder.

[0008] Preferably, the rectangular rubber pad is arranged as an inverted funnel.

[0009] Preferably, slide bars are symmetrically fixedly connected to the side walls of the slide rod, and vertical grooves are symmetrically opened on the inner wall of the circular hole.

[0010] Preferably, the two slide bars fixedly connected to the outer wall of the slide rod are respectively slidably connected to the inside of the vertical grooves opened on the inner wall of the circular hole.

[0011] Preferably, a depth scale is longitudinally embedded on one side of the outer wall of the sampling tube.

[0012] Preferably, an observation window is longitudinally opened on one side of the outer wall of the sampling tube, and a transparent acrylic plate is fixedly connected to the observation window.

[0013] Compared with the prior art, the technical effects and advantages of this utility model are:

[0014] This liquid sampling device for chemical testing, when cleaning residual liquid from the sidewalls of the sampling tube after sampling, first presses the rectangular frame downward, simultaneously driving the two connecting rods and the rectangular scraper fixedly connected to their lower ends to slide downward along the outer wall of the sampling tube, thereby scraping away any residual liquid from the surface. Compared to existing technologies, this device can more conveniently and effectively clean residual chemical liquid from the outer wall of the sampling tube, thereby preventing liquid from dripping onto the ground and causing contamination when the sampling tube is moved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 It is a structural diagram of the utility model;

[0017] Figure 2 For this utility model Figure 1 A schematic diagram of the structure of part A in the middle;

[0018] Figure 3 For this utility model Figure 1 A magnified schematic diagram of the structure of part B;

[0019] Figure 4 This is a schematic diagram of the connection between the rectangular scraper and the rectangular rubber pad in the present invention.

[0020] Description of reference numerals:

[0021] In the figure: 1. Sampling tube; 2. Piston rod; 3. Sliding rod; 4. Rectangular frame; 5. Connecting rod; 6. Rectangular scraper; 7. Rectangular rubber pad; 8. Sliding bar; 9. Depth scale; 10. Observation window. DETAILED DESCRIPTION

[0022] In the following description, numerous specific details are provided to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features known in the art are not described to avoid confusion with the present invention.

[0023] Unless otherwise defined, the directions of up, down, left, right, front, back, inside and outside involved in this document are based on the directions of up, down, left, right, front, back, inside and outside shown in the figures of the present invention, and are explained here together.

[0024] The connection method can be bonding, welding, bolt connection, etc., which shall be based on actual needs.

[0025] like Figures 1 to 4 The main structure of a liquid sampling device for chemical inspection shown is a sampling cylinder 1, in which a piston rod 2 is slidably provided. A depth scale 9 is longitudinally embedded on one side of the outer wall of the sampling cylinder 1. The sampling cylinder 1 is inserted to the depth of the liquid to be sampled according to the depth scale 9 on the side wall of the sampling cylinder 1. An observation window 10 is longitudinally opened on one side of the outer wall of the sampling cylinder 1, and a transparent acrylic plate is fixedly connected to the observation window 10. The liquid level of the sample can be visually observed through the observation window 10, thereby making the sampled liquid level more precise.

[0026] A circular hole is symmetrically opened on the top surface of the sampling tube 1, and a slide rod 3 is slidably connected to the inside of the circular hole. A slide bar 8 is symmetrically fixedly connected to the side wall of the slide rod 3. A vertical groove is symmetrically opened on the inner wall of the circular hole. Two slide bars 8 fixedly connected to the outer wall of the slide rod 3 are slidably connected to the inside of the vertical groove opened on the inner wall of the circular hole. Thanks to the two slide bars 8 fixedly connected on the side walls of the slide rod 3, they are slidably connected to the inside of the two vertical grooves symmetrically opened on the inner wall of the circular hole, so that the sliding direction of the slide rod 3 can be further limited effectively. A rectangular frame 4 is fixedly connected between the outer sides of the two slide rods 3;

[0027] The outer wall of the sampling tube 1 is slidably sleeved with a rectangular scraper 6, and the inner wall of the rectangular scraper 6 slides in contact with the outer wall of the sampling tube 1. The lower end of the inner wall of the rectangular scraper 6 is fixedly connected with a rectangular rubber pad 7, and the rectangular rubber pad 7 slides in contact with the outer wall of the sampling tube 1. The rectangular rubber pad 7 is an inverted funnel setting. Thanks to the setting of the rectangular rubber pad 7, the inner wall of the rectangular scraper 6 can slide in contact with the outer wall of the sampling tube 1 more closely, thereby greatly improving the effect of scraping liquid from the outer wall of the sampling tube 1. A connecting rod 5 is symmetrically fixed between the rectangular frame 4 and the rectangular scraper 6.

[0028] How it works

[0029] When using the liquid sampling device for chemical inspection, the piston rod 2 on the top surface of the sampling tube 1 is first pressed downward to the lowest point, and then the rectangular frame 4 is pulled upward to drive the two connecting rods 5 and the rectangular scraper 6 to move upward to the highest point, and then the sampling tube 1 is directly inserted into the liquid to be sampled, and then the sampling tube 1 is inserted to the required liquid depth according to the depth scale 9 on the side wall of the sampling tube 1, and then the piston rod 2 is pulled to sample the liquid, and the sampled liquid level can be visually observed through the observation window 10. After the sampling is completed, when it is necessary to clean the residual liquid on the side wall of the sampling tube 1, the rectangular frame 4 is first pressed downward, and at the same time, the two connecting rods 5 and the rectangular scraper 6 fixed at the lower ends of the two connecting rods 5 are driven to slide downward along the outer wall of the sampling tube 1, so that the rectangular scraper 6 can scrape off the residual liquid on the surface.

[0030] It should be noted that, in this article, relational terms such as one and two are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "including an element defined by ... does not exclude the presence of other identical elements in the process, method, article or device that includes the element."

[0031] 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 sampling device for chemical testing, comprising a sampling cylinder (1) for liquid sampling for chemical testing, characterized in that: A piston rod (2) is slidably provided in the sampling cylinder (1), a circular hole is symmetrically opened on the top surface of the sampling cylinder (1), a sliding rod (3) is slidably connected inside the circular hole, and a rectangular frame (4) is fixedly connected between the outer sides of the two sliding rods (3); The outer wall of the sampling tube (1) is slidably sleeved with a rectangular scraper (6), the inner wall of the rectangular scraper (6) is slidably fitted with the outer wall of the sampling tube (1), and a connecting rod (5) is symmetrically fixedly connected between the rectangular frame (4) and the rectangular scraper (6).

2. A liquid sampling device for chemical testing according to claim 1, characterized in that: A rectangular rubber pad (7) is fixedly connected to the lower end of the inner wall of the rectangular scraper (6), and the rectangular rubber pad (7) is slidably fitted to the outer wall of the sampling tube (1).

3. A liquid sampling device for chemical testing according to claim 2, characterized in that: The rectangular rubber pad (7) is arranged as an inverted funnel.

4. A liquid sampling device for chemical testing according to claim 1, characterized in that: Slide bars (8) are symmetrically fixedly connected to the side walls of the slide rod (3), and vertical grooves are symmetrically opened on the inner wall of the circular hole.

5. A liquid sampling device for chemical testing according to claim 4, characterized in that: The two slide bars (8) fixedly connected to the outer wall of the slide rod (3) are respectively slidably connected to the inside of the vertical grooves opened on the inner wall of the circular hole.

6. The liquid sampling device for chemical testing according to claim 1, characterized in that: A depth scale (9) is longitudinally embedded on one side of the outer wall of the sampling tube (1).

7. A liquid sampling device for chemical testing according to claim 6, characterized in that: An observation window (10) is longitudinally provided on one side of the outer wall of the sampling tube (1), and a transparent acrylic plate is fixedly connected inside the observation window (10).

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