Water sampling pipe winding and unwinding assembly for dissolved oxygen sampling

Abstract

The utility model discloses a collecting and releasing assembly of a water sampling pipe for sampling dissolved oxygen, and relates to the technical field of water quality detection, which comprises a dissolved oxygen electrode arranged in a concave cavity of an analyzer, and further comprises a sliding block arranged in a sliding chute of the analyzer in a sliding manner, the sliding groove is communicated with the concave cavity; and the clamping assembly is connected with the sliding block so as to clamp the water sampling pipe, and an opening of the water sampling pipe is provided with a closed structure. According to the utility model, the slide groove is formed in the analyzer, the slide block is arranged in the slide groove, and the slide block is connected with the clamping assembly, so that the analyzer can be quickly switched to the next water sampling pipe just like a magazine during detection by pushing the slide block, and therefore, the detection efficiency can be improved; the fixed clamping plate, the movable clamping plate and the water sampling pipe can be stored in a sliding groove in the analyzer, the size is reduced, and integrated carrying is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of water quality detection, in particular to a water sampling pipe retractable component for dissolved oxygen sampling. Background Art

[0002] The portable dissolved oxygen analyzer mainly includes a box, an analyzer, a dissolved oxygen electrode, a water sampling tube and an auxiliary support structure, wherein the box is a container for storing the analyzer, the dissolved oxygen electrode, the water sampling tube and the auxiliary support structure. The analyzer is connected to the dissolved oxygen electrode through a wire. The dissolved oxygen electrode is essentially a sensor composed of a gold electrode, a silver electrode and potassium hydride or potassium hydroxide electrolyte. The water sampling tube is a container for storing water samples. The auxiliary support structure is a clamp structure for fixing the dissolved oxygen electrode. When in use, the aviation socket of the dissolved oxygen electrode needs to be inserted into the electrode socket of the analyzer, and then the dissolved oxygen electrode is installed on the auxiliary support structure, and the dissolved oxygen electrode is inserted into the water sampling tube, so that the data is calculated by the analyzer.

[0003] The existing technology has the following problems: the water sampling pipe, dissolved oxygen electrode and auxiliary support structure need to be placed separately in the container, and need to be taken out separately when in use, and spliced ​​and assembled when in use, which is cumbersome to operate and inconvenient to retract. Utility Model Content

[0004] The utility model aims to provide a water sampling tube retractable assembly for dissolved oxygen sampling, so as to solve the technical problem that dissolved oxygen analyzers on the market are currently inconvenient to operate and retract after being spliced ​​and assembled during use, as proposed in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a water sampling tube retractable assembly for dissolved oxygen sampling, comprising a dissolved oxygen electrode arranged in a concave cavity of an analyzer, and the water sampling tube retractable assembly for dissolved oxygen sampling also includes:

[0006] A slider, which is slidably disposed in a slide groove provided in the analyzer, and the slide groove is communicated with the concave cavity;

[0007] A clamping assembly connected to the slider to clamp the water sampling pipe, and the opening of the water sampling pipe is provided with a closing structure;

[0008] The telescopic structure is used to drive the dissolved oxygen electrode to descend to open the closed structure and extend into the water sampling tube when the slider drives the water sampling tube to move below the dissolved oxygen electrode, so that the dissolved oxygen electrode contacts the water sample.

[0009] As a preferred technical solution of the utility model, the side plate of the sliding block is provided with a guide block, and the guide block is slidably matched with a guide groove provided on the inner wall of the sliding groove.

[0010] As a preferred technical solution of the utility model, the clamping assembly includes:

[0011] A fixed clamping plate connected to the slider;

[0012] A movable block is slidably disposed in a movable groove provided in the sliding block;

[0013] A threaded rod rotatably disposed in the movable groove, and the threaded rod cooperates with the threaded groove provided in the movable block;

[0014] The movable clamping plate is connected with the movable block, and both the movable clamping plate and the fixed clamping plate are provided with an embedding groove matched with the water sampling pipe.

[0015] As a preferred technical solution of the utility model, the water sampling tube retractable assembly for dissolved oxygen sampling also includes:

[0016] A clamping block, which is slidably matched with the inner groove provided in the slide block, and the clamping block is clamped and matched with the clamping groove provided on the inner wall of the slide groove;

[0017] The elastic member is arranged in the inner groove to push the clamping block to engage with the clamping groove.

[0018] As a preferred technical solution of the utility model, the closing structure includes a cover plate rotatably arranged at the opening of the water sampling pipe, and a torsion spring is connected between the cover plate and the water sampling pipe.

[0019] As a preferred technical solution of the utility model, the telescopic structure includes an electric push rod, the bottom of which is connected to the concave cavity, and the output end of the electric push rod is connected to the dissolved oxygen electrode.

[0020] As a preferred technical solution of the utility model, a water-absorbing cotton sleeve for absorbing water on the surface of the dissolved oxygen electrode is arranged in the concave cavity.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] The utility model provides a slide groove in the analyzer, and sets a slider in the slide groove, and connects the slider with the clamping assembly. With this structure, it can be like a magazine during detection, and the next water sampling tube can be quickly switched by pushing the slider, thereby improving the detection efficiency. When not in use, the fixed splint, the movable splint and the water sampling tube can be stored in the slide groove in the analyzer, reducing the volume and facilitating integrated carrying. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the external three-dimensional structure of the utility model;

[0024] Figure 2 It is a schematic diagram of a partially cutaway three-dimensional structure of the utility model;

[0025] Figure 3 It is a schematic diagram of the three-dimensional structure of the slider of the utility model;

[0026] Figure 4 It is a schematic diagram of the three-dimensional structure of the water collection pipe bureau of the utility model.

[0027] In the figure: 1. Analyzer; 2. Slider; 3. Slide; 4. Guide block; 5. Guide groove; 6. Fixed splint; 7. Movable splint; 8. Movable block; 9. Movable groove; 10. Threaded rod; 11. Threaded groove; 12. Inner groove; 13. Block; 14. Elastic member; 15. Slot; 16. Water sampling pipe; 17. Cover plate; 18. Electric push rod; 19. Dissolved oxygen electrode; 20. Concave cavity; 21. Water-absorbing cotton sleeve. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0029] See also Figure 1-Figure 4 The utility model provides a technical solution: a water sampling tube retracting and releasing assembly for dissolved oxygen sampling, comprising a dissolved oxygen electrode 19 arranged in a concave cavity 20 of an analyzer 1, and the water sampling tube retracting and releasing assembly for dissolved oxygen sampling also includes: a slider 2, which is slidably arranged in a slide groove 3 provided in the analyzer 1, and the slide groove 3 is communicated with the concave cavity 20; a side plate of the slider 2 is provided with a guide block 4, and the guide block 4 is slidably matched with a guide groove 5 provided in the inner wall of the slide groove 3; a clamping assembly, which is connected to the slider 2 to clamp the water sampling tube 16. In this embodiment, the clamping assembly includes: a fixed clamping plate 6, which is connected to the slider 2; a movable block 8, which is slidably arranged in a movable groove 9 provided in the slider 2; a threaded rod 10, which is rotatably arranged in the movable groove 9, and the threaded rod 10 is matched with a threaded groove 11 provided in the movable block 8; a movable clamping plate 7, which is connected to the movable block 8, and the movable clamping plate 7 and the fixed clamping plate 6 are both provided with an embedded groove matched with the water sampling tube 16;

[0030] The above technical solution can be used to clamp the water sampling tube 16, and the water sampling tube 16 can be sent into the slide groove 3 of the analyzer 1, and the water sampling tube 16 containing the water sample is placed in the embedded groove of the fixed clamp 6 and the movable clamp 7. The threaded rod 10 is rotated to drive the movable block 8 to slide in the movable groove 9, thereby driving the movable clamp 7 to move closer to the fixed clamp 6 to fix the water sampling tube 16, and then the slider 2 is inserted into the slide groove 3 of the analyzer 1.

[0031] like Figure 4As shown, the opening of the water sampling pipe 16 is provided with a closing structure; in this embodiment, the closing structure includes a cover plate 17 rotatably arranged at the opening of the water sampling pipe 16, and a torsion spring is connected between the cover plate 17 and the water sampling pipe 16;

[0032] like Figure 2 As shown, the water sampling tube retractable assembly for dissolved oxygen sampling also includes a telescopic structure, which is used to drive the dissolved oxygen electrode 19 to descend to open the closed structure and extend into the water sampling tube 16 when the slider 2 drives the water sampling tube 16 to move below the dissolved oxygen electrode 19, so that the dissolved oxygen electrode 19 contacts the water sample; in this embodiment, the telescopic structure includes an electric push rod 18, the bottom of which is connected to the concave cavity 20, and the output end of the electric push rod 18 is connected to the dissolved oxygen electrode 19; a water-absorbing cotton sleeve 21 for absorbing water on the surface of the dissolved oxygen electrode 19 is provided in the concave cavity 20;

[0033] By adopting the above technical scheme, the dissolved oxygen electrode 19 can be automatically inserted into the water sampling tube 16 to detect the water sample. The electric push rod 18 pushes the dissolved oxygen electrode 19 to move down, open the cover plate 17, and extend into the water sampling tube 16 to contact the water sample, thereby detecting the water sample. At the same time, the fixed splint 6 and the movable splint 7 can fix multiple water sampling tubes 16. When it is necessary to detect the water sample of the next water sampling tube 16, the electric push rod 18 first drives the dissolved oxygen electrode 19 to rise and reset. The absorbent cotton sleeve 21 can absorb the water stains on the surface of the dissolved oxygen electrode 19 to avoid affecting the next measurement and reduce the error. By pushing the slider 2, it is quickly switched to the next water sampling tube 16. By adopting this structure, it can be like a magazine during detection, thereby improving the detection efficiency and being more convenient to use. When not in use, the fixed splint 6, the movable splint 7 and the water sampling tube 16 can be stored in the slide slot 3 in the analyzer 1 to reduce the volume and facilitate integrated carrying.

[0034] Further, such as Figure 3 As shown, the water sampling tube retractable assembly for dissolved oxygen sampling further includes: a clamping block 13, which is slidably matched with the inner groove 12 provided in the slide block 2, and the clamping block 13 is engaged with the clamping groove 15 provided on the inner wall of the slide groove 3; an elastic member 14, which is provided in the inner groove 12 to push the clamping block 13 to engage with the clamping groove 15;

[0035] The above technical solution can improve the detection accuracy. When the water sampling pipe 16 is pushed under the dissolved oxygen electrode 19, the block 13 just engages with the groove 15 on the inner wall of the slide 3, thereby generating a limit to prevent the water sampling pipe 16 from shaking when the dissolved oxygen electrode 19 is detecting the water sampling pipe 16. In order to ensure that the slider 2 is not completely locked, the block 13 should be provided with an oblique angle.

[0036] Working principle: When in use, first put the water sampling tube 16 containing the water sample into the embedded grooves of the fixed clamping plate 6 and the movable clamping plate 7, rotate the threaded rod 10 to drive the movable block 8 to slide in the movable groove 9, thereby driving the movable clamping plate 7 to move close to the fixed clamping plate 6 to fix the water sampling tube 16, and then insert the slider 2 into the slide 3 of the analyzer 1. When the water sampling tube 16 is pushed under the dissolved oxygen electrode 19, the block 13 just engages with the groove 15 on the inner wall of the slide 3, thereby generating a limit to prevent the dissolved oxygen electrode 19 from shaking when the water sampling tube 16 is detected. Then the electric push rod 18 pushes the dissolved oxygen electrode 19 downward to push open the cover plate 17 and extend into the water sampling tube 16 to contact the water sample. Touch, thereby testing the water sample, while the fixed splint 6 and the movable splint 7 can fix multiple water sampling tubes 16. When it is necessary to test the water sample of the next water sampling tube 16, the electric push rod 18 first drives the dissolved oxygen electrode 19 to rise and reset, and the absorbent cotton sleeve 21 can absorb the water stains on the surface of the dissolved oxygen electrode 19 to avoid affecting the next measurement and reduce the error. By pushing the slider 2, it is quickly switched to the next water sampling tube 16. With this structure, it can be like a magazine during testing, thereby improving the detection efficiency and being more convenient to use. When not in use, the fixed splint 6, the movable splint 7 and the water sampling tube 16 can be stored in the slide slot 3 in the analyzer 1 to reduce the volume and facilitate integrated carrying.

[0037] Thereby completing a series of tasks, the contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0038] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A water sampling tube retractable assembly for dissolved oxygen sampling, comprising a dissolved oxygen electrode (19) disposed in a cavity (20) of an analyzer (1), characterized in that: The water sampling tube retractable assembly for dissolved oxygen sampling also includes: A sliding block (2) is slidably disposed in a sliding groove (3) provided in the analyzer (1), and the sliding groove (3) is communicated with the concave cavity (20); a clamping assembly connected to the slider (2) to clamp the water sampling tube (16), wherein the opening of the water sampling tube (16) is provided with a closing structure; The telescopic structure is used to drive the dissolved oxygen electrode (19) to descend, open the closed structure and extend into the water sampling tube (16) when the slider (2) drives the water sampling tube (16) to move below the dissolved oxygen electrode (19), thereby allowing the dissolved oxygen electrode (19) to contact the water sample.

2. The water sampling tube retractable assembly for dissolved oxygen sampling according to claim 1, characterized in that: The side plate of the sliding block (2) is provided with a guide block (4), and the guide block (4) is slidably matched with a guide groove (5) provided on the inner wall of the sliding groove (3).

3. The water sampling tube retractable assembly for dissolved oxygen sampling according to claim 1, characterized in that: The clamping assembly comprises: A fixed clamping plate (6) connected to the slider (2); A movable block (8) slidably disposed in a movable groove (9) provided in the slide block (2); a threaded rod (10) rotatably disposed in the movable groove (9), and the threaded rod (10) cooperates with a threaded groove (11) provided in the movable block (8); The movable clamping plate (7) is connected to the movable block (8), and both the movable clamping plate (7) and the fixed clamping plate (6) are provided with an embedding groove that matches the water sampling pipe (16).

4. The water sampling tube retractable assembly for dissolved oxygen sampling according to claim 3, characterized in that: The water sampling tube retractable assembly for dissolved oxygen sampling also includes: A clamping block (13) which is slidably matched with an inner groove (12) provided in the slide block (2), and the clamping block (13) is clamped and matched with a clamping groove (15) provided on the inner wall of the slide groove (3); An elastic member (14) is disposed in the inner groove (12) to push the clamping block (13) to engage with the clamping groove (15).

5. The water sampling tube retractable assembly for dissolved oxygen sampling according to claim 1, characterized in that: The closed structure comprises a cover plate (17) rotatably arranged at the opening of the water sampling pipe (16), and a torsion spring is connected between the cover plate (17) and the water sampling pipe (16).

6. The water sampling tube retractable assembly for dissolved oxygen sampling according to claim 1, characterized in that: The telescopic structure comprises an electric push rod (18), the bottom of which is connected to the concave cavity (20), and the output end of the electric push rod (18) is connected to a dissolved oxygen electrode (19).

7. The water sampling tube retractable assembly for dissolved oxygen sampling according to claim 1, characterized in that: The cavity (20) is provided with a water-absorbing cotton sleeve (21) for absorbing water on the surface of the dissolved oxygen electrode (19).

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