Adjustable water quality detector

Abstract

The utility model provides a kind of adjustable water quality detector, it is related to water quality detection device technical field, including water quality detector ontology, inner tube, fixed cylinder, elastic metal strip and outer tube.The adjustable water quality detector, the recess of the projection on slide and the through-hole of fixed cylinder correspond, sliding column can freely slide along through-hole, and elastic metal strip has sufficient deformation allowance.Water quality detector ontology with the end of detection head is towards inner tube exterior, slowly inserted into inner tube, and the outer wall of detector extrudes elastic metal strip, so that it occurs elastic deformation, when the annular groove of the outside of detector moves to the position of elastic metal strip, elastic metal strip loses the extrusion of outer wall and resets, directly clamped into annular groove, to realize preliminary location of detector.Sliding slide makes recess and through-hole stagger, and slide completely blocks through-hole, and sliding column is supported to elastic metal strip by abutting on the bottom surface of slide, reduce its deformation allowance, avoid displacement of detector in detection, complete the stable fixation of detector.

Description

Technical Field

[0001] This utility model relates to the technical field of water quality testing devices, and in particular to an adjustable water quality testing instrument. Background Technology

[0002] Water quality testing pens are commonly used tools in water quality testing. Currently, most water quality testing pens on the market are independent handheld devices, lacking effective fixing mechanisms. Furthermore, existing water quality testing pens are usually of fixed length, unable to be flexibly adjusted to meet testing needs. During testing, personnel need to hold the device by hand. When testing water in deeper waters, such as the bottom of ponds or deep wells, the insufficient length of the device forces personnel to use other tools for extension, making operation cumbersome and increasing testing costs. Conversely, when testing water in shallower waters or confined spaces, the fixed length of the device is not flexible enough. These problems significantly limit the applicability and ease of use of water quality testing pens, making it difficult to meet the water quality testing needs of different scenarios. Utility Model Content

[0003] This invention provides an adjustable water quality analyzer, which solves the problems mentioned in the background art regarding the difficulty in fixing the water quality test pen during use and the inability to adjust its length.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an adjustable water quality analyzer, comprising an analyzer body, an inner cylinder, a fixed cylinder, an elastic metal strip, and an outer cylinder. The analyzer body has an annular groove on its outer side, and a tail end is provided at the end of the analyzer body away from the detection head. The analyzer body is slidably connected to the inner cylinder. A threaded rod is fixed to one end of the inner cylinder. The outer cylinder is sleeved on the outside of the inner cylinder, and the inner cylinder can slide inside the outer cylinder. The threaded rod is threadedly connected to the outer cylinder. The fixed cylinder... Located on the inner cylinder and coaxially arranged with it, the fixed cylinder has multiple inner grooves evenly distributed around its inner circumference, and an outer groove on its outer side. The outer grooves correspond one-to-one with the inner grooves, and a through hole is formed between the inner and outer grooves. The elastic metal strip is fixed in the inner groove and protrudes from the inner wall of the fixed cylinder. A sliding column is installed on one side of the elastic metal strip, and the sliding column is slidably connected in the through hole. When the water quality analyzer body is inserted and fixed in the inner cylinder, the elastic metal strip is engaged inside the annular groove, and a sliding strip is slidably connected in the outer groove.

[0005] Preferably, a torsion disc is fixed at one end of the threaded rod located on the outer side of the outer cylinder.

[0006] Preferably, the elastic metal strip has elastic deformation capability.

[0007] Preferably, both ends of the elastic metal strip are fixedly connected to end plates, the elastic metal strip protrudes outward relative to the end plates, and the end plates are fitted and fixed in the inner groove.

[0008] Preferably, the end of the sliding column away from the elastic metal strip is provided with a hemispherical end, which can extend and retract within the through hole.

[0009] Preferably, the slide bar has a protrusion and a groove at the bottom of the protrusion. When the groove is aligned with the through hole, the hemispherical end protrudes from the outer groove and is located at the bottom of the groove. When the slide bar blocks the through hole, the hemispherical end abuts against the bottom surface of the slide bar, which can limit the deformation of the elastic metal strip.

[0010] Preferably, slide rails are fixedly connected to both sides of the slide bar, and the slide bar is slidably connected to the outer groove of the fixed cylinder through the slide rails.

[0011] Compared with the prior art, the beneficial effects of this utility model are: Before testing, the water quality analyzer body is first installed and secured. The sliding bar inside the outer groove of the fixed cylinder is slid until the raised groove on the sliding bar aligns with the through hole of the fixed cylinder. At this point, the sliding column can slide freely along the through hole, and the elastic metal strip has sufficient deformation allowance. Then, with the end of the water quality analyzer body containing the detection head facing outwards from the inner cylinder, it is slowly inserted into the inner cylinder. During insertion, the outer wall of the analyzer compresses the elastic metal strip, causing it to elastically deform and slide against the outer wall of the analyzer. When the outer annular groove of the analyzer moves to the position of the elastic metal strip, the elastic metal strip loses the pressure from the outer wall and returns to its original position, directly locking into the annular groove, thus initially limiting the analyzer's position. Afterwards, the sliding bar is slid again, causing the raised groove to misalign with the through hole, completely blocking the through hole. The sliding column abuts against the bottom surface of the sliding bar, at which point the sliding column supports the elastic metal strip, reducing its deformation allowance and preventing the analyzer from shifting during testing, thus completing the stable fixation of the analyzer.

[0012] After installation and fixation, the testing personnel hold the outer cylinder and adjust the device length according to the conditions of the water area to be tested. For deep water testing, rotate the torsion disc at the end of the threaded rod, causing the threaded rod to rotate and the inner cylinder to extend axially along the outer cylinder until the overall length meets the requirements for deep water testing. For shallow water or narrow spaces, rotate the torsion disc in the opposite direction to retract the inner cylinder back into the outer cylinder, shortening the device length. Insert the water quality analyzer's testing head into the water area to be tested. After the analyzer displays stable test data, record the results. After testing, slide the slider to align the groove with the through hole again. The sliding column can then slide along the through hole, and the elastic metal strip will return to its original deformation allowance. At this point, pull out the water quality analyzer body to disassemble it. If further testing is not required, rotate the torsion disc in the opposite direction to completely retract the inner cylinder back into the outer cylinder, reducing the device size for easy storage. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the adjustable water quality analyzer of this utility model; Figure 2 This is a schematic diagram showing the fit between the outer cylinder and the inner cylinder of this utility model; Figure 3 This is an exploded view of the fixed cylinder of this utility model in conjunction with a water quality analyzer; Figure 4 This is a structural schematic diagram of the installation position of the elastic metal strip of this utility model; Figure 5 for Figure 4 Enlarged view of point A; Figure 6 This is a schematic diagram of the installation position of the hemispherical end of this utility model, showing the hemispherical end protruding from the through hole; Figure 7 A structural schematic diagram showing the location of the through hole in this utility model; Figure 8 This is a schematic diagram of the elastic metal strip structure of this utility model; Figure 9 This is a schematic diagram of the slider structure of this utility model.

[0014] The following are the labels in the diagram: 1. Water quality analyzer body; 11. Annular groove; 12. Tail end; 2. Inner cylinder; 21. Threaded rod; 211. Torque disc; 3. Fixed cylinder; 31. Inner groove; 32. Outer groove; 33. Through hole; 4. Elastic metal strip; 41. End plate; 42. Sliding column; 421. Hemispherical end; 5. Sliding strip; 51. Protrusion; 511. Groove; 52. Slide rail; 6. Outer cylinder. Detailed Implementation

[0015] 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 scope of protection of the present utility model.

[0016] This utility model provides an adjustable water quality analyzer, such as... Figure 1 As shown, it includes the water quality analyzer body 1, inner cylinder 2, fixed cylinder 3, elastic metal strip 4, and outer cylinder 6, as follows: Figure 3 As shown, an annular groove 11 is provided on the outer side of the water quality analyzer body 1, and a tail end 12 is provided at the end of the water quality analyzer body 1 away from the detection head. The water quality analyzer body 1 is slidably connected in the inner cylinder 2, as shown. Figure 2As shown, a threaded rod 21 is fixed to one end of the inner cylinder 2, and the outer cylinder 6 is sleeved on the outside of the inner cylinder 2. The inner cylinder 2 can slide inside the outer cylinder 6. The threaded rod 21 is threadedly connected to the outer cylinder 6. The fixed cylinder 3 is located on the inner cylinder 2 and is coaxially arranged with the inner cylinder 2. Rotating the torsion disk 211 drives the threaded rod 21 to rotate. Because the threaded rod 21 is threadedly engaged with the outer cylinder 6, the inner cylinder 2 can slide along the axial direction of the outer cylinder 6, thereby changing the overall length of the device. When inspecting deep water, the inner cylinder 2 extends out of the outer cylinder 6 to extend its length. When inspecting shallow water or narrow spaces, the inner cylinder 2 retracts back into the outer cylinder 6 to shorten its length, meeting the inspection needs of different scenarios.

[0017] When the water quality analyzer body 1 is limited by the elastic metal strip 4, it can rotate in the inner cylinder 2, but this does not affect the testing process and results. Furthermore, when the water quality analyzer body 1 is inserted into the water body, it can be effectively limited and cannot detach from the inner cylinder 2.

[0018] Preferably, a straight groove corresponding to the elastic metal strip 4 can also be opened in the annular groove 11. During installation, the straight groove corresponds to the position of the elastic metal strip 4. When the elastic metal strip 4 is reset, it is locked in the straight groove, restricting the rotation of the water quality analyzer body 1.

[0019] like Figure 4 and Figure 5 As shown, multiple inner grooves 31 are evenly distributed around the inner circumference of the fixed cylinder 3, and an outer groove 32 is provided on the outer side of the fixed cylinder 3. The outer grooves 32 correspond one-to-one with the inner grooves 31, as shown in the figure. Figure 6 and Figure 7 As shown, a through hole 33 is formed between the inner groove 31 and the outer groove 32. An elastic metal strip 4 is fixed in the inner groove 31 and protrudes from the inner wall of the fixed cylinder 3. A sliding column 42 is installed on one side of the elastic metal strip 4. The sliding column 42 is slidably connected in the through hole 33. When the water quality analyzer body 1 is inserted and fixed in the inner cylinder 2, the elastic metal strip 4 is engaged in the annular groove 11. A sliding strip 5 is slidably connected in the outer groove 32. Sliding rails 52 are fixedly connected on both sides of the sliding strip 5. The sliding strip 5 is slidably connected to the outer groove 32 of the fixed cylinder 3 through the sliding rails 52.

[0020] like Figure 2 As shown, a torsion disc 211 is fixed at one end of the threaded rod 21 located outside the outer cylinder 6.

[0021] like Figure 8As shown, the elastic metal strip 4 has elastic deformation capability. Both ends of the elastic metal strip 4 are fixedly connected to end plates 41. The elastic metal strip 4 protrudes outward relative to the end plates 41, and the end plates 41 firmly fix the elastic metal strip 4 in the inner groove 31, preventing the metal strip from shifting during deformation or repositioning. The outward protrusion of the elastic metal strip 4 relative to the end plates 41 gives it good elasticity, allowing it to contract when the detector is inserted and reposition itself into the annular groove 11 after insertion. The end plates 41 are fitted and fixed in the inner groove 31. The end of the sliding column 42 away from the elastic metal strip 4 is provided with a hemispherical end 421, which can extend and retract within the through hole 33. The hemispherical end 421 of the sliding column 42 reduces friction with the bottom surface of the slide bar 5, making the slide bar 5 slide more smoothly.

[0022] The slide bar 5 is provided with a protrusion 51, and a groove 511 is formed at the bottom of the protrusion 51. When the groove 511 is aligned with the through hole 33, the hemispherical end 421 protrudes into the outer groove 32 and is located at the bottom of the groove 511. When the slide bar 5 blocks the through hole 33, the hemispherical end 421 abuts against the bottom surface of the slide bar 5, which can limit the deformation of the elastic metal strip 4. The groove 511 of the protrusion 51 corresponds to or is offset from the through hole 33, which directly determines whether the slide bar 42 can slide and whether the elastic metal strip 4 has a deformation margin, thereby controlling the installation, limiting and locking state of the detector.

[0023] Before testing, slide the slider 5 so that the groove 511 of the protrusion 51 aligns with the through hole 33. The slide post 42 can slide freely along the through hole 33, providing sufficient deformation allowance for the elastic metal strip 4, facilitating the insertion of the detector body into the inner cylinder 2. During insertion, the outer wall of the detector compresses the elastic metal strip 4, causing it to deform. When the annular groove 11 of the detector moves to the position of the elastic metal strip 4, the elastic metal strip 4 resets and locks into the annular groove 11, achieving initial positioning of the detector. Subsequently, slide the slider 5 to displace the groove 511 from the through hole 33, blocking the through hole 33. The slide post 42 abuts against the bottom surface of the slider 5. At this time, the slide post 42 provides support for the elastic metal strip 4, reducing its deformation allowance and preventing the elastic metal strip 4 from shifting due to external force shaking during testing, ensuring stable positioning.

[0024] like Figure 9 As shown, slide rails 52 are fixedly connected to both sides of the slide bar 5, and the slide bar 5 is slidably connected to the outer groove 32 of the fixed cylinder 3 through the slide rails 52. The slide rails 52 restrict the sliding trajectory of the slide bar 5, so that it can only move smoothly along the outer groove 32 and avoid deviation.

[0025] Using this utility model, such as Figure 1 and Figure 2As shown, before testing, the water quality analyzer body 1 is first installed and fixed. The slide bar 5 inside the outer groove 32 of the sliding fixing cylinder 3 is slid so that the groove 511 of the protrusion 51 on the slide bar 5 corresponds to the through hole 33 of the fixing cylinder 3. At this time, the slide column 42 can slide freely along the through hole 33, and the elastic metal strip 4 has sufficient deformation margin. Then, with the end of the water quality analyzer body 1 with the detection head facing outwards from the inner cylinder 2, it is slowly inserted into the inner cylinder 2. During insertion, the outer wall of the analyzer presses against the elastic metal strip 4, causing it to undergo elastic deformation and slide against the outer wall of the analyzer. When the annular groove 11 on the outer side of the analyzer moves to the position of the elastic metal strip 4, the elastic metal strip 4 loses the pressure from the outer wall and resets, directly locking into the annular groove 11, thus initially limiting the position of the analyzer. Then slide the slider 5 again to make the groove 511 of the protrusion 51 misalign with the through hole 33. The slider 5 completely blocks the through hole 33, and the slider 42 abuts against the bottom surface of the slider 5. At this time, the slider 42 supports the elastic metal strip 4, reduces its deformation allowance, prevents the detector from shifting during the test, and completes the stable fixation of the detector.

[0026] After installation and fixation, the testing personnel hold the outer cylinder 6 and adjust the device length according to the conditions of the water area to be tested. If testing deep water, rotate the torsion disc 211 at the end of the threaded rod 21, causing the threaded rod 21 to rotate and extend the inner cylinder 2 axially along the outer cylinder 6 until the overall length meets the testing requirements for distant deep water areas. If testing nearby shallow water or narrow spaces, rotate the torsion disc 211 in the opposite direction to retract the inner cylinder 2 back into the outer cylinder 6, shortening the device length. Insert the testing head of the water quality analyzer body 1 into the water area to be tested. After the analyzer displays stable testing data, record the results. After testing, slide the slider 5 to realign the groove 511 with the through hole 33, allowing the sliding column 42 to slide along the through hole 33. The elastic metal strip 4 returns to its deformation allowance. At this point, pull out the water quality analyzer body 1 to release the installation. If further testing is not required, rotate the torsion disc 211 in the opposite direction to completely retract the inner cylinder 2 back into the outer cylinder 6, reducing the device size for easy storage.

[0027] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. An adjustable water quality analyzer, characterized in that, The instrument includes a water quality analyzer body (1), an inner cylinder (2), a fixed cylinder (3), an elastic metal strip (4), and an outer cylinder (6). The water quality analyzer body (1) has an annular groove (11) on its outer side. A tail end (12) is provided at the end of the water quality analyzer body (1) away from the detection head. The water quality analyzer body (1) is slidably connected to the inner cylinder (2). A threaded rod (21) is fixed to one end of the inner cylinder (2). The outer cylinder (6) is sleeved on the outside of the inner cylinder (2). The inner cylinder (2) can slide inside the outer cylinder (6). The threaded rod (21) is threadedly connected to the outer cylinder (6). The fixed cylinder (3) is located on the inner cylinder (2) and is coaxially arranged with it. Multiple inner grooves (31) are evenly distributed around the inner circumference of the fixed cylinder (3), and an outer groove (32) is provided on the outer side of the fixed cylinder (3). The outer groove (32) corresponds to the inner groove (31) one by one. A through hole (33) is opened between the inner groove (31) and the outer groove (32). The elastic metal strip (4) is fixed in the inner groove (31) and protrudes from the inner wall of the fixed cylinder (3). A sliding column (42) is installed on one side of the elastic metal strip (4). The sliding column (42) is slidably connected in the through hole (33). When the water quality tester body (1) is inserted and fixed in the inner cylinder (2), the elastic metal strip (4) is engaged in the annular groove (11). A sliding strip (5) is slidably connected in the outer groove (32).

2. The adjustable water quality analyzer according to claim 1, characterized in that, The threaded rod (21) has a torsion disc (211) fixed at one end located outside the outer cylinder (6).

3. The adjustable water quality analyzer according to claim 1, characterized in that, The elastic metal strip (4) has elastic deformation capability.

4. The adjustable water quality analyzer according to claim 3, characterized in that, Both ends of the elastic metal strip (4) are fixedly connected to end plates (41). The elastic metal strip (4) protrudes outward relative to the end plate (41), and the end plate (41) is fitted and fixed in the inner groove (31).

5. The adjustable water quality analyzer according to claim 4, characterized in that, The sliding column (42) is provided with a hemispherical end (421) at one end away from the elastic metal strip (4), and the hemispherical end (421) can extend and retract in the through hole (33).

6. The adjustable water quality analyzer according to claim 5, characterized in that, The slide bar (5) is provided with a protrusion (51), and a groove (511) is provided at the bottom of the protrusion (51). When the groove (511) is aligned with the through hole (33), the hemispherical end (421) protrudes from the outer groove (32) and is located at the bottom of the groove (511). When the slide bar (5) blocks the through hole (33), the hemispherical end (421) abuts against the bottom surface of the slide bar (5), which can limit the deformation of the elastic metal strip (4).

7. The adjustable water quality analyzer according to claim 1, characterized in that, The slide bar (5) is fixedly connected to slide rails (52) on both sides, and the slide bar (5) is slidably connected to the outer groove (32) of the fixed cylinder (3) through the slide rails (52).

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