Portable profile in-situ algae toxin early warning instrument

Abstract

The utility model relates to water quality monitoring technical field discloses a kind of portable profile in-situ algal toxin early warning instrument, the early warning instrument includes adjusting mechanism, the adjusting mechanism includes top cover, first shell, second shell, third shell, first semicircle slider, second semicircle slider and screw rod, first and second semicircle slider are slidably connected in second shell inner wall, and detection groove is jointly defined, the screw rod is rotatably connected in the top cover and third shell, and sequentially wear first and second semicircle slider, positive thread and reverse thread are set on the screw rod, the reverse thread is threadedly connected with first semicircle slider, the positive thread is threadedly connected with second semicircle slider. The utility model solves the problem that detection groove width is fixed in prior art, cannot adapt to different water body flow rate, improves the stability of detection data and sample timeliness.

Description

Technical Field

[0001] This utility model relates to the field of water quality monitoring technology, and in particular to a portable in-situ algal toxin early warning instrument. Background Technology

[0002] Algal toxins are common biotoxins in freshwater bodies, mainly produced by algae such as cyanobacteria during excessive reproduction. They pose a serious threat to drinking water safety and aquatic ecosystems. Therefore, it is of great significance to develop instruments and equipment that can provide on-site and real-time early warning of algal toxins. Portable in-situ algal toxin profile early warning instruments are a commonly used monitoring tool. They typically use optical methods such as fluorescence and are suspended by cables at different depths in the water body to conduct profile measurements in real time to assess the biomass of toxin-producing algae.

[0003] For optical detection, these instruments typically require a detection groove or sampling channel. Water samples flow through this groove, and the detector inside the instrument analyzes the flowing water. In existing portable early warning instruments, the width of the detection groove or the size of the channel is usually fixed. When the instrument performs profile measurements in waters with fast flow, the high-speed water flow violently impacts the fixed detection groove, creating turbulence and bubbles inside. This severely interferes with the signal stability of the optical detector, causing drastic fluctuations in measurement data and a significant decrease in accuracy. When the instrument operates in waters with extremely slow flow or stillness, the fixed-width detection groove faces the problem of untimely water sample updates. The water sample remains in the groove for a long time, which may cause changes in algal activity or fail to reflect the true water conditions at the current depth. For profile measurements that require rapid response, the representativeness and timeliness of the data are greatly reduced.

[0004] Therefore, this invention proposes a portable in-situ algal toxin early warning device to address the shortcomings of existing technologies. Utility Model Content

[0005] In view of the problems in the existing portable in-situ algal toxin early warning instruments, such as the fixed detection groove width which cannot adapt to different water flow velocities, resulting in unstable detection at high flow rates and untimely water sample updates at low flow rates, ultimately affecting detection accuracy and sample representativeness, this utility model aims to provide a portable in-situ algal toxin early warning instrument with an improved structure that can effectively solve the above problems.

[0006] This utility model provides a portable in-situ algal toxin early warning instrument, comprising: an adjustment mechanism, the adjustment mechanism including a top cover, a first outer shell fixedly connected to the upper end of the top cover, a third outer shell, a second outer shell coaxially disposed between the first outer shell and the third outer shell, a first semi-circular slider slidably connected to the inner wall of the second outer shell, and a second semi-circular slider slidably connected to the inner wall of the second outer shell and disposed opposite to the first semi-circular slider, the first semi-circular slider and the second semi-circular slider jointly defining a detection groove, and a screw, wherein the screw is provided with a forward thread and a reverse thread.

[0007] Furthermore, the two ends of the screw are rotatably connected to the top cover and the third outer shell, respectively, and the screw passes through the first semicircular slider and the second semicircular slider in sequence. The reverse thread is threaded to the first semicircular slider, and the forward thread is threaded to the second semicircular slider. By rotating the screw, the first semicircular slider and the second semicircular slider can be driven to slide synchronously towards each other or away from each other, so as to adjust the width of the detection groove so that it can adapt to different water flow environments.

[0008] Preferably, the adjustment mechanism further includes a first cylindrical slider and a second cylindrical slider. The outer wall of the first cylindrical slider is slidably connected to the inner wall of the first housing and is threadedly connected to the screw via the reverse thread. The outer wall of the second cylindrical slider is slidably connected to the inner wall of the third housing and is threadedly connected to the screw via the forward thread. The arrangement of the first cylindrical slider and the second cylindrical slider provides additional guidance and support for the sliding of the first semicircular slider and the second semicircular slider, enhancing the smoothness of the adjustment process.

[0009] Preferably, the portable profile in-situ algal toxin early warning instrument further includes three detectors, which are disposed on the first semicircular slider, the second semicircular slider and the second outer shell. The probes of the detectors face the inside of the detection groove and are used to perform in-situ optical analysis on water samples entering the groove.

[0010] Preferably, the portable in-situ algal toxin early warning device further includes a protective frame and a quick-release mechanism. The protective frame is fixedly connected to the outside of the first outer shell and the third outer shell. The quick-release mechanism is connected to the protective frame. The protective frame provides structural protection for the internal adjustment mechanism to prevent collision damage during hoisting or retrieval.

[0011] Preferably, the quick-release mechanism includes a first clamp and a second clamp, which are rotatably connected by a hinge. The hinge is fixedly connected to the outer wall of the protective frame. This structure facilitates the opening or closing of the first clamp and the second clamp relative to each other, so as to conveniently cover the instrument body.

[0012] Preferably, the quick-release mechanism further includes a protective shell fixedly connected to the outer wall of the second clamp, and a pin detachably installed in the protective shell. The pin is used to pass through the first clamp, thereby locking and fixing the first clamp and the second clamp in the closed state.

[0013] Preferably, a baffle is fixedly connected to the outer wall of the pin, and a spring is fixedly connected between the outer wall of the second clamp and the baffle. The spring is used to provide a reset force for the pin, so that the pin can automatically maintain a tensioned state when locked.

[0014] Preferably, the first clamp has a slot, and the pin passes through the first clamp and engages with the slot by rotation to complete the locking. With the spring's rebound force, it can be ensured that the pin will not come loose accidentally after locking, thus ensuring the reliability of the instrument's fixation.

[0015] This utility model has the following beneficial effects:

[0016] 1. This utility model solves the problem in the prior art where the sampling groove width of the detector is fixed and cannot adapt to different water flow velocities, resulting in unstable water samples at high flow rates and untimely water sample updates at low flow rates. It achieves the technical effect of flexibly adjusting the detection groove width according to the on-site water flow velocity, thereby improving the stability of detection data and the timeliness of samples.

[0017] 2. This utility model solves the problems of cumbersome, time-consuming, and not securely reliable installation of existing portable instruments during on-site deployment and retrieval by setting up a first clamp and a second clamp connected by hinges, as well as a quick-installation mechanism with locking by a pin, spring, baffle and slot. It achieves the technical effect of making the installation and disassembly of the instrument extremely convenient and fast, and the locking is stable.

[0018] 3. This utility model forms an adjustable detection groove by sliding the first semicircular slider, the second semicircular slider and the second outer shell together. This groove structure solves the technical problem that ambient light can easily interfere with optical detection during in-situ field measurement, and achieves the technical effect of effectively isolating stray ambient light and further ensuring the accuracy of fluorescence detection. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural schematic diagram of a portable in-situ algal toxin early warning device based on the present invention.

[0020] Figure 2This is a schematic diagram of the first outer shell cross-section of a portable in-situ algal toxin early warning device proposed in this utility model;

[0021] Figure 3 This is a schematic diagram of the screw section of a portable in-situ cross-sectional algal toxin early warning instrument proposed in this utility model.

[0022] Figure 4 This is a schematic diagram of the first clamp part of a portable in-situ cross-sectional algal toxin early warning device proposed in this utility model;

[0023] Figure 5 This is a schematic diagram of the slot structure of a portable in-situ algal toxin early warning instrument based on the present invention.

[0024] Legend:

[0025] 1. Top cover; 2. Adjustment mechanism; 201. First outer shell; 202. Second outer shell; 203. First semi-circular slider; 204. Second semi-circular slider; 205. Third outer shell; 206. First cylindrical slider; 207. Second cylindrical slider; 208. Screw; 209. Forward thread; 210. Reverse thread; 3. Detector; 4. Protective frame; 5. Quick-release mechanism; 501. First clamp; 502. Second clamp; 503. Hinge; 504. Protective shell; 505. Pin; 506. Baffle; 507. Spring; 508. Slot. Detailed Implementation

[0026] 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 protection scope of the present utility model.

[0027] Please refer to Figures 1 to 5 This utility model provides a portable in-situ algal toxin early warning instrument, which aims to solve the problem that the sampling channel size of the existing detector is fixed and cannot adapt to different water flow velocities, resulting in unstable or untimely detection data.

[0028] like Figure 1 and Figure 2As shown, the portable in-situ algal toxin early warning instrument includes an adjustment mechanism 2. The adjustment mechanism 2, as the main structure for realizing the core function of the instrument, includes a top cover 1 and a first outer shell 201. The upper end of the first outer shell 201 is fixedly connected to the top cover 1. The adjustment mechanism 2 also includes a third outer shell 205 and a second outer shell 202. The second outer shell 202 is coaxially disposed between the first outer shell 201 and the third outer shell 205. The first outer shell 201, the second outer shell 202, and the third outer shell 205 together form a cavity for accommodating internal sliding components. The adjustment mechanism 2 further includes a first semi-circular slider 203 disposed inside the second outer shell 202. The outer wall of the first semi-circular slider 203 is slidably connected to the inner wall of the second outer shell 202. It also includes a second semi-circular slider 204. The outer wall of the second semi-circular slider 204 is also slidably connected to the inner wall of the second outer shell 202. The second semi-circular slider 204 and the first semi-circular slider 203 are disposed opposite to each other. The two work together to define a detection groove for water sample detection.

[0029] The screw 208 is provided with a forward thread 209 and a reverse thread 210 for transmission. The screw 208 is vertically installed at the central axis of the adjusting mechanism 2. The two ends of the screw 208 are respectively connected to the inner wall of the top cover 1 and the third outer shell 205 by a rotatable connection. This rotatable connection allows the screw 208 to rotate freely relative to the top cover 1 and the third outer shell 205, while its axial position is fixed. After installation, the screw 208 passes through the first semicircular slider 203 and the second semicircular slider 204 in sequence.

[0030] Meanwhile, the first semicircular slider 203 is provided with a threaded hole that mates with the reverse thread 210, so that the reverse thread 210 and the first semicircular slider 203 form a threaded connection. Similarly, the second semicircular slider 204 is provided with a threaded hole that mates with the forward thread 209, so that the forward thread 209 and the second semicircular slider 204 form a threaded connection.

[0031] In the assembled state, when an external driving force drives the screw 208 to rotate around its own axis, since the screw 208 is rotatably connected to the top cover 1 and the third outer shell 205, and the first semicircular slider 203 and the second semicircular slider 204 can only slide up and down along the inner wall of the second outer shell 202 and cannot rotate, the rotation of the screw 208 will drive the first semicircular slider 203 and the second semicircular slider 204 to slide synchronously and in opposite directions along the inner wall of the second outer shell 202 through the transmission of the reverse thread 210 and the forward thread 209, respectively. This differential transmission structure using the forward and reverse threads ensures that the first semicircular slider 203 and the second semicircular slider 204 can slide synchronously towards or away from each other, thereby smoothly adjusting the width of the detection groove.

[0032] Based on the above embodiments, the present invention may further include the following preferred technical solutions:

[0033] As a preferred embodiment, to enhance the overall sliding stability and guiding performance of the adjustment mechanism 2, please refer to... Figure 2 The adjustment mechanism 2 also includes a first cylindrical slider 206 and a second cylindrical slider 207. The outer wall of the first cylindrical slider 206 is slidably connected to the inner wall of the first outer shell 201, and the first cylindrical slider 206 is threadedly connected to the screw 208 through a reverse thread 210. The outer wall of the second cylindrical slider 207 is slidably connected to the inner wall of the third outer shell 205, and the second cylindrical slider 207 is threadedly connected to the screw 208 through a forward thread 209. The arrangement of the first cylindrical slider 206 and the second cylindrical slider 207 can help the first semicircular slider 203 and the second semicircular slider 204 maintain stability and accuracy during the sliding process.

[0034] In a preferred embodiment, in order to achieve in-situ detection of water samples, the portable profile in-situ algal toxin early warning instrument also includes three detectors 3. The detectors 3 are set on the first semicircular slider 203, the second semicircular slider 204 and the second outer shell 202. The probes of the detectors 3 face the inside of the detection groove and are used to perform optical analysis on the water samples entering the groove.

[0035] As a preferred embodiment, for ease of external mounting of the instrument and to provide structural protection, please refer to... Figure 1 The warning device also includes a protective frame 4 and a quick-release mechanism 5. The protective frame 4 is fixedly connected to the outside of the first housing 201 and the third housing 205. The protective frame 4 provides structural support and anti-collision protection for the internal adjustment mechanism 2, and the quick-release mechanism 5 is connected to the protective frame 4.

[0036] As a preferred embodiment, to achieve rapid clamping of the instrument, please refer to... Figure 1 and Figure 4 The quick-installation mechanism 5 specifically includes a first clamp 501 and a second clamp 502. The first clamp 501 and the second clamp 502 are rotatably connected by a hinge 503. The hinge 503 is fixedly connected to the outer wall of the protective frame 4. This structure allows the first clamp 501 and the second clamp 502 to open and close relative to each other like a hinge, so as to conveniently cover the instrument body.

[0037] In a preferred embodiment, in order to achieve the locking operation of the clamp, the quick-release mechanism 5 also includes a protective shell 504, which is fixedly connected to the outer wall of the second clamp 502. The quick-release mechanism 5 also includes a pin 505, which is pluggably installed inside the protective shell 504. The pin 505 is used to pass through the first clamp 501, thereby locking and fixing the first clamp 501 and the second clamp 502 in the closed state.

[0038] As a preferred embodiment, to achieve automatic reset and locking of the latch 505, please refer to... Figure 4 A baffle 506 is fixedly connected to the outer wall of the pin 505. A spring 507 is also fixedly connected between the outer wall of the second clamp 502 and the baffle 506. The spring 507 is compressed when the pin 505 is pressed and rebounds when it is released, providing the pin 505 with an automatic reset force.

[0039] As a preferred embodiment, to ensure the reliability of the locking and prevent loosening, please refer to... Figure 4 and Figure 5 The first clamp 501 has a slot 508. After the pin 505 passes through the first clamp 501, it can be engaged with the slot 508 by rotating the locking block at its end. At this time, under the action of the spring 507, the pin 505 is firmly locked in the slot 508 to prevent it from accidentally coming out.

[0040] The working principle of this portable in-situ algal toxin early warning instrument is as follows:

[0041] When the width of the detection groove needs to be adjusted to accommodate different water flow velocities, the operator can turn the screw 208 set on the top cover 1. Since the two ends of the screw 208 are rotatably connected to the top cover 1 and the third outer shell 205 respectively, the rotational motion of the screw 208 will be converted into the linear motion of the first semicircular slider 203 and the second semicircular slider 204 through the reverse thread 210 and the forward thread 209 opened on it. Specifically, the reverse thread 210 is threaded to the first semicircular slider 203, and the forward thread 209 is threaded to the second semicircular slider 204, so that the first semicircular slider 203... The sliding direction of the inner wall of the second outer shell 202 is opposite to the sliding direction of the second semi-circular slider 204, thereby realizing the synchronous widening or narrowing of the detection groove width. During this process, the first cylindrical slider 206 slides in the first outer shell 201, and the second cylindrical slider 207 slides in the third outer shell 205, jointly assisting and guiding this adjustment process, so that the instrument can adapt to water environments with different flow rates. After the adjustment is completed, the detector 3 set on the first semi-circular slider 203, the second semi-circular slider 204 or the second outer shell 202 can perform optical detection on the water sample entering the detection groove.

[0042] When the instrument needs to be installed, the operator places the first outer shell 201 and the third outer shell 205 between the protective frame 4 and the first clamp 501 and the second clamp 502. The first clamp 501 and the second clamp 502 are closed by rotating the hinge 503. Then, the pin 505 in the protective shell 504 of the second clamp 502 is aligned with the hole in the first clamp 501 and inserted inward. Pressing the pin 505 causes the baffle 506 on its outer wall to compress the spring 507. After the pin 505 passes through the first clamp 501, it is rotated to lock into the slot 508 opened on the first clamp 501. At this time, the pin 505 is released, and the spring 507 rebounds and pushes the baffle 506, causing the pin 505 to be firmly locked in the slot 508, completing the installation. Unlocking is done by reversing the operation. This quick-installation mechanism 5 provides a convenient, fast and reliable fixing method.

[0043] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A portable in-situ algal toxin early warning device, comprising an adjustment mechanism (2), characterized in that, The adjustment mechanism (2) includes a top cover (1), a first outer shell (201), a third outer shell (205), a second outer shell (202), a first semi-circular slider (203), and a second semi-circular slider (204); The upper end of the first outer shell (201) is fixedly connected to the top cover (1), the second outer shell (202) is coaxially disposed between the first outer shell (201) and the third outer shell (205), the outer wall of the first semi-circular slider (203) is slidably connected to the inner wall of the second outer shell (202), the outer wall of the second semi-circular slider (204) is slidably connected to the inner wall of the second outer shell (202), and is disposed opposite to the first semi-circular slider (203) to jointly define the detection groove; The adjustment mechanism (2) further includes a screw (208), the two ends of which are rotatably connected to the top cover (1) and the third outer shell (205), and the screw (208) passes through the first semicircular slider (203) and the second semicircular slider (204) in sequence. The screw (208) is provided with a forward thread (209) and a reverse thread (210). The reverse thread (210) is threadedly connected to the first semicircular slider (203), and the forward thread (209) is threadedly connected to the second semicircular slider (204).

2. The portable in-situ algal toxin early warning instrument according to claim 1, characterized in that, The adjustment mechanism (2) further includes a first cylindrical slider (206) and a second cylindrical slider (207). The outer wall of the first cylindrical slider (206) is slidably connected to the inner wall of the first outer shell (201) and is threadedly connected to the screw (208) through the reverse thread (210). The outer wall of the second cylindrical slider (207) is slidably connected to the inner wall of the third outer shell (205) and is threadedly connected to the screw (208) through the forward thread (209).

3. The portable in-situ algal toxin early warning instrument according to claim 1, characterized in that, It also includes three detectors (3) disposed on the first semicircular slider (203), the second semicircular slider (204) and the second housing (202).

4. The portable in-situ algal toxin early warning device according to claim 1, characterized in that, It also includes a protective frame (4) and a quick-installation mechanism (5), wherein the protective frame (4) is fixedly connected to the outside of the first outer shell (201) and the third outer shell (205), and the quick-installation mechanism (5) is connected to the protective frame (4).

5. A portable in-situ algal toxin early warning device based on profile analysis according to claim 4, characterized in that, The quick-installation mechanism (5) includes a first clamp (501) and a second clamp (502). The first clamp (501) and the second clamp (502) are rotatably connected by a hinge (503), which is fixedly connected to the outer wall of the protective frame (4).

6. A portable in-situ algal toxin early warning device based on profile analysis according to claim 5, characterized in that, The quick-release mechanism (5) further includes a protective shell (504) fixedly connected to the outer wall of the second clamp (502), and a pin (505) detachably installed in the protective shell (504), the pin (505) being used to lock the first clamp (501) and the second clamp (502).

7. A portable in-situ algal toxin early warning device based on profile analysis according to claim 6, characterized in that, A baffle (506) is fixedly connected to the outer wall of the pin (505), and a spring (507) is fixedly connected between the outer wall of the second clamp (502) and the baffle (506).

8. A portable in-situ algal toxin early warning device according to claim 7, characterized in that, The first clamp (501) has a slot (508) and the pin (505) passes through the first clamp (501) and engages with the slot (508) by rotation to complete the locking.

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