Linear drive water quality probe water body updating integrated device

Abstract

This invention discloses an integrated water body renewal device for a linearly driven water quality probe. The device utilizes a linear drive assembly to drive a transmission rod reciprocating, and a transmission block and a spiral transmission groove to achieve forward and reverse rotation. An inclined agitator plate creates a hydraulic flush on the probe sensor end, and the first and second water exchange tanks work together to guide the flow and renew the water, thus achieving non-contact self-cleaning and long-term stable detection. The device is characterized by comprising a probe, a connecting ring, a protective chamber, a counterweight, a linear drive assembly, a transmission rod, a transmission groove, a transmission ring, a transmission block, a connecting block, an agitator plate, a first water exchange tank, and a second water exchange tank. The probe has an external thread on its side near the sensor end, and the inner surface of the connecting ring has an internal thread corresponding to that on the probe. The connecting ring is threadedly connected to the probe via the internal thread engaging the external thread.

Description

Technical Field

[0001] This invention relates to an integrated water body renewal device for a linearly driven water quality probe, which integrates in-situ hydraulic flushing and water body renewal for a water quality detection probe. It belongs to the technical field of water quality monitoring instruments, and specifically relates to a device that uses a linear drive assembly to drive a transmission rod reciprocating, and achieves forward and reverse rotation through the cooperation of a transmission block and a spiral transmission groove. An inclined agitator plate forms a hydraulic flush on the probe sensor end, and the device, along with a first and second water exchange tank, provides counter-current flow to achieve water body renewal. This results in a non-contact, self-cleaning, and long-term stable detection integrated water body renewal device for a linearly driven water quality probe. Background Technology

[0002] In the current field of water quality testing, water detection probes are usually installed directly in the water body, or a protective cover / cage with openings is installed on the outside of the probe to prevent collisions and block coarse particles. In some scenarios, contact cleaning structures such as brush heads and scrapers are also used, or the sensor end is cleaned by external flushing pipelines, air and water backwashing, etc. While these mainstream solutions can meet basic detection and protection needs to a certain extent, they still generally suffer from the following technical defects under long-term online monitoring conditions: First, the passive protective cover with openings has limited disturbance to the water around the sensor end, and a still water layer and stagnation zone are easily formed near the probe. Impurities such as silt, algae, and biofilm are easy to adhere and accumulate near the sensor sensitive surface, resulting in reading drift, response lag, and increased frequency of manual maintenance. Second, the method of relying on natural water flow to achieve water sample renewal is significantly affected by water flow velocity, installation posture, and environmental changes. Under low flow velocity or complex operating conditions, the water around the sensor end is not sufficiently renewed, making it difficult to ensure the stability and consistency of continuous detection data. Third, although contact brushing / scraping can directly remove the attached substances, the risk of brush bristle wear and scraping causing scratches or contamination to the sensitive surface is relatively high.

[0003] Publication No. CN218121945U discloses a water quality testing box with a probe cleaning tube, including a box body (1) and a water quality testing probe (2). The box body (1) is equipped with a probe cleaning tube (5), a sampling bottle fixing plate (6), a clean water tank (7) and a wastewater tank (8). The probe cleaning tube (5) is equipped with a set of nozzles (10). The set of nozzles (10) is connected to the clean water tank (7) through a pump. The bottom end of the probe cleaning tube (5) is equipped with an upwardly protruding conical base (12). The conical base (12) has a probe avoidance hole in the middle and a cover (13) is provided on the probe avoidance hole. The aforementioned device uses a pump to deliver cleaning fluid from the clean water tank to the nozzle for spray cleaning of the probe. The cleaning effect is highly dependent on the pump's output pressure, the nozzle orifice diameter and spray angle, and the unobstructedness of the pipeline. Under long-term operation or in conditions where the water contains a lot of sand, algae, or suspended solids, the nozzle orifice and pipeline are more prone to scaling, blockage, or spray deviation, resulting in uneven spray coverage, insufficient flushing force, and the creation of cleaning dead zones. Consequently, it is difficult to completely remove residual pollutants from the sensitive surface of the probe, and the cleaning effect decreases over time while the maintenance frequency increases. Summary of the Invention

[0004] To improve the above situation, the present invention provides an integrated water body renewal device for a linearly driven water quality probe. This device uses a linear drive component to drive a transmission rod to reciprocate, and achieves forward and reverse rotation through the cooperation of a transmission block and a spiral transmission groove. An inclined stirring plate forms a hydraulic flush on the probe sensor end, and the first and second water exchange tanks work together to guide the flow in opposite directions to achieve water body renewal. This results in non-contact self-cleaning and long-term stable detection of the water body.

[0005] The present invention discloses an integrated water body renewal device for a linearly driven water quality probe, which is implemented as follows: The integrated water body renewal device for a linearly driven water quality probe includes a probe, a connecting ring, a protective chamber, a counterweight, a linear drive assembly, a transmission rod, a transmission groove, a transmission ring, a transmission block, a connecting block, a stirring plate, a first water replacement tank, and a second water replacement tank. Its distinguishing feature is that the probe has an external thread on its side near the sensor end. The inner surface of the connecting ring is provided with an internal thread corresponding to that on the probe. The connecting ring is threadedly connected to the probe via the internal thread engaging with the external thread. The protective chamber has an open end, and the open end of the protective chamber is fixedly connected to the side of the connecting ring and is coaxially arranged. Preferably, the protective cabin is a hollow rotating ellipsoid structure, which is formed by rotating an ellipse around its major axis, and the protective cabin has an open end along the major axis. Preferably, the intersection of the protective cabin and the connecting ring is an arc-shaped connection. The counterweight is fixedly connected to the inner side of the opening end of the protective chamber. One end of the linear drive assembly is fixedly connected to the planar end of the counterweight, and the planar end of the counterweight is perpendicular to the central axis of the protective chamber. Preferably, the linear drive assembly is a waterproof electric actuator structure. The other end of the linear drive assembly is rotatably connected to a transmission rod, which is coaxially arranged with the protective cabin. The transmission rod has a transmission groove. Preferably, the transmission groove is spirally wound from one end of the transmission rod to the other end, and its spiral direction is less than one revolution. The outer ring of the transmission ring is fixedly connected to the inner side of the protective chamber, and is positioned near the center of the protective chamber in the axial direction. The transmission block is rotatably connected to the inner ring surface of the transmission ring, and the transmission block can slide within the transmission groove. One end of the connecting block is fixedly connected to the other end of the transmission rod. Preferably, the other end of the connecting block has an arc-shaped structure. The stirring plates are fixedly connected to the side of the connecting block, and multiple stirring plates are arranged at equal intervals along the circumference of the connecting block. Preferably, each of the agitator plates is inclined and gradually rises along the spiral direction from the top to the bottom of the transmission groove of the transmission rod. The protective chamber has a first water exchange tank, which is positioned above the transmission ring. Multiple first water exchange tanks are arranged at equal intervals along the circumference of the protective chamber. Preferably, the first water exchange tank extends axially outward from the protective chamber and is inclined at 15 degrees toward the spiral direction of the transmission tank from top to bottom. The protective chamber has a second water exchange tank on its side, positioned above the first water exchange tank, and multiple second water exchange tanks are arranged at equal intervals along the circumference of the protective chamber. Preferably, the second water exchange tank extends axially outward from the protective chamber and is inclined at 15 degrees toward the spiral direction of the transmission tank from the bottom to the top. Beneficial effects

[0006] 1. By adopting a combination of linear reciprocating and helical drive reversal, the agitator plate forms a composite water flow, which continuously scours the sensor end with water, reducing the adhesion of silt and biofilm and reducing the frequency of maintenance.

[0007] Second, the water exchange channel is designed with upper and lower layers and reverse tilting to create an alternating flow trend under different reciprocating strokes, thereby improving the efficiency of water exchange between the inside and outside of the chamber, reducing reading drift caused by local stagnation, and enhancing long-term measurement stability. Attached Figure Description

[0008] Figure 1 This is a three-dimensional structural diagram of a linear-driven water quality probe integrated water body renewal device according to the present invention; Figure 2 This is a three-dimensional structural diagram of a linear-driven water quality probe integrated water body renewal device according to the present invention; Attached Figure

[0009] The components are: protective chamber (1), first water exchange tank (2), second water exchange tank (3), connecting ring (4), probe (5), connecting block (6), stirring plate (7), transmission block (8), transmission ring (9), transmission rod (10), transmission groove (11), linear drive assembly (12), and counterweight block (13). Detailed Implementation Example 1

[0010] The present invention provides an integrated water body renewal device for a linearly driven water quality probe, which is implemented as follows: The integrated water body renewal device for a linearly driven water quality probe includes a probe (5), a connecting ring (4), a protective chamber (1), a counterweight (13), a linear drive assembly (12), a transmission rod (10), a transmission groove (11), a transmission ring (9), a transmission block (8), a connecting block (6), a stirring plate (7), a first water replacement tank (2), and a second water replacement tank (3). The probe (5) has an external thread on the side near the sensor end. The inner ring surface of the connecting ring (4) is provided with an internal thread corresponding to that on the probe (5). The connecting ring (4) is threadedly connected to the probe (5) through the internal thread engaging with the external thread. The protective chamber (1) has an open end, and its open end is fixedly connected to the side of the connecting ring (4) and is coaxially arranged. Preferably, the protective cabin (1) is a hollow rotating ellipsoid structure, which is formed by rotating an ellipse around its major axis, and the protective cabin (1) has an open end along its major axis. Preferably, the intersection of the protective chamber (1) and the connecting ring (4) is an arc-shaped connection. The counterweight (13) is fixedly connected to the inner side of the opening end of the protective chamber (1). One end of the linear drive assembly (12) is fixedly connected to the planar end of the counterweight block (13), and the planar end of the counterweight block (13) is perpendicular to the central axis of the protective chamber (1). Preferably, the linear drive assembly (12) is a waterproof electric actuator structure. The other end of the linear drive assembly (12) is rotatably connected to the transmission rod (10), and the transmission rod (10) is coaxially arranged with the protective cabin (1). The transmission rod (10) has a transmission groove (11). Preferably, the transmission groove (11) is spirally wound from one end of the transmission rod (10) to the other end, and its spiral direction is less than one revolution. The outer ring surface of the transmission ring (9) is fixedly connected to the inner side of the protective chamber (1), and is located near the center of the protective chamber (1) in the axial direction. The transmission block (8) is rotatably connected to the inner ring surface of the transmission ring (9), and the transmission block (8) can slide within the transmission groove (11). One end of the connecting block (6) is fixedly connected to the other end of the transmission rod (10). Preferably, the other end of the connecting block (6) has an arc-shaped structure. The stirring plate (7) is fixedly connected to the side of the connecting block (6), and multiple stirring plates (7) are arranged at equal intervals along the circumference of the connecting block (6). Preferably, each of the agitator plates (7) is inclined and gradually rises along the spiral direction from the top end of the transmission rod (10) to the bottom end of the transmission groove (11). The protective chamber (1) has a first water exchange tank (2) located above the transmission ring (9). Multiple first water exchange tanks (2) are arranged at equal intervals along the circumference of the protective chamber (1). Preferably, the first water exchange tank (2) extends axially outward from the protective chamber (1) and is inclined at 15 degrees toward the transmission tank (11) in a spiral direction from top to bottom. The protective chamber (1) has a second water exchange tank (3) on its side, which is located above the first water exchange tank (2). Multiple second water exchange tanks (3) are arranged at equal intervals along the circumference of the protective chamber (1). Preferably, the second water exchange tank (2) extends axially outward from the protective chamber (1) and is inclined at 15 degrees toward the transmission tank (11) in a spiral direction from bottom to top. In use, first screw the connecting ring (4) into the external thread of the sensor end of the probe (5), so that the protective chamber (1) is coaxially fixed on the outside of the probe and the sensor end is covered inside the chamber. The rotating ellipsoid shape and the arc transition connection ensure mechanical protection while reducing the fouling caused by the sudden change of the inner wall. After the device is lowered into the target water area, the counterweight (13) serves as the fixed end inside the chamber to provide a rigid mounting base for the linear drive assembly (12). During operation, the linear drive assembly (12) periodically extends and retracts and drives the transmission rod (10) to make axial reciprocating motion through the rotational connection. The transmission ring (9) is fixed to the inner wall of the protective chamber (1) to play a constraining and guiding role. The transmission block (8) rotates and engages with the inner ring of the transmission ring (9) and is embedded in the spiral transmission groove (11) of the transmission rod (10). When the transmission block slides along the groove with the stroke, it forces the transmission rod to generate forward and reverse rotation corresponding to the stroke, thereby converting the single linear reciprocating motion into a composite output of reciprocating displacement and rotation. The rotation of the moving rod (10) further drives the connecting block (6) and its multiple inclined stirring plates (7) arranged circumferentially at equal intervals to rotate synchronously in both directions. The inclination angle of the stirring plates and their gradually increasing arrangement along the spiral direction cause them to exert a combined effect of circumferential stirring and axial pushing on the water in the chamber, causing the water to form a periodic flush along the sensor end surface of the probe (5), weakening the adhesion and accumulation of mud, biofilm, etc. on the sensitive surface. At the same time, the first water exchange tank (2) and the second water exchange tank (3) on the side wall of the protective chamber are set in layers and have opposite inclination directions. Their inclined channels generate different local flow resistance and flow guide bias under different rotation directions and pressure difference conditions, making it easier to form an exchange path of one set of water exchange tanks draining out and another set of water exchange tanks replenishing in one stroke. The exchange path is switched accordingly in the reverse stroke, so as to realize the periodic alternation and renewal of the water inside and outside the chamber without relying on the external water flow. Thus, continuous water exchange and non-contact self-cleaning flushing are realized, improving long-term measurement stability and reducing maintenance frequency. The protective chamber (1) is designed as a hollow rotating ellipsoid structure, which can provide mechanical protection for the sensor end of the probe (5) while making the flow field inside the chamber more continuous and reducing the dead angles of dirt and stagnation caused by abrupt changes in the inner wall. The design of the transmission groove (11) spirally winding from one end of the transmission rod (10) to the other end, and the spiral direction is less than one revolution, can stably convert the linear reciprocating stroke into a controlled finite angle forward and reverse rotation, avoid excessive rotation causing entanglement and reduce transmission resistance; The outer ring surface of the transmission ring (9) is fixedly connected to the inner side of the protective chamber (1), and the design of being set close to the middle of the protective chamber (1) in the axial direction of the protective chamber (1) can provide stable constraint and guidance for the transmission block (8), making the rotation of the transmission rod (10) more controllable and the operation more stable. Each of the agitators (7) is inclined and gradually rises along the spiral direction of the transmission groove (11) from the top to the bottom of the transmission rod (10). This design can generate an axial push water flow while agitating, forming a continuous water scouring on the sensor end of the probe (5) and weakening the adhesion of impurities. The design of the first water exchange tank (2) extending outward from the protective chamber (1) and tilting 15 degrees toward the spiral direction from top to bottom of the transmission tank (11), and the second water exchange tank (3) tilting 15 degrees toward the opposite spiral direction, can form a flow bias under different spiral directions and pressure differences, promote the alternating renewal of water inside and outside the chamber and reduce short-circuit back suction; The linear drive assembly (12) drives the transmission rod (10) to reciprocate, and the transmission block (8) and the spiral transmission groove (11) work together to achieve forward and reverse rotation. The tilting agitator (7) forms a water jet on the sensor end of the probe (5), and the first water exchange tank (2) and the second water exchange tank (3) work together to achieve water renewal, thereby achieving non-contact self-cleaning and long-term stable detection.

[0011] It should be noted that, unless otherwise explicitly specified and limited, the terms "placed," "connected," and "linked" should be interpreted broadly. For example, they can refer to fixed connections such as folded edges, rivets, pins, adhesives, and welds; detachable connections such as threaded connections, snap-fit ​​connections, and hinges; integral connections; electrical connections; direct connections; or indirect connections via an intermediate medium; or internal connections between two components. Those skilled in the art can understand the specific meaning of these terms in this invention based on the specific circumstances.

[0012] The above embodiments are preferred embodiments of the present invention. Due to space limitations, the applicant has not used other embodiments, but this is not intended to limit the scope of the present invention. Any person skilled in the art can make some modifications without departing from the scope of the present invention; that is, all equivalent modifications made in accordance with the present invention should be covered by the scope of the present invention.

Claims

1. A linear-driven water quality probe integrated water body renewal device, comprising a probe, a connecting ring, a protective chamber, a counterweight, a linear drive assembly, a transmission rod, a transmission groove, a transmission ring, a transmission block, a connecting block, a stirring plate, a first water replacement tank, and a second water replacement tank, characterized in that: The connecting ring is threaded to the probe via an internal thread and an external thread. One end of the protective chamber is open, and the open end of the protective chamber is fixedly connected to the side of the connecting ring and is coaxially arranged. The counterweight is fixedly connected to the inner side of the open end of the protective chamber. One end of the linear drive assembly is fixedly connected to the flat end of the counterweight, and the other end of the linear drive assembly is rotatably connected to the transmission rod. The transmission rod has a transmission groove. The outer ring surface of the transmission ring is fixedly connected to the inner side of the protective chamber and is located near the center of the protective chamber in the axial direction. The transmission block is rotatably connected to the inner ring surface of the transmission ring and can slide in the transmission groove. One end of the connecting block is fixedly connected to the other end of the transmission rod. The agitator is fixedly connected to the side of the connecting block. The protective chamber has a first water exchange trough and a second water exchange trough on its side.

2. The linear-driven water quality probe integrated water body renewal device according to claim 1, characterized in that... The probe has an external thread on the side near the sensor end, and the inner ring of the connecting ring has an internal thread corresponding to that on the probe.

3. The linear-driven water quality probe integrated water body renewal device according to claim 1, characterized in that... The protective cabin and the connecting ring intersect in an arc shape.

4. The linear-driven water quality probe integrated water body renewal device according to claim 1, characterized in that... The protective cabin is a hollow rotating ellipsoid structure, which is formed by rotating an ellipse around its major axis, and an open end is provided at one end of the protective cabin along the major axis.

5. The linear-driven water quality probe integrated water body renewal device according to claim 1, characterized in that... The flat end of the counterweight is perpendicular to the central axis of the protective chamber, and the linear drive assembly is a waterproof electric actuator structure.

6. The integrated water body renewal device for a linearly driven water quality probe according to claim 1, characterized in that... The transmission rod is coaxially arranged with the protective cabin, and the other end of the connecting block has an arc-shaped structure.

7. The integrated water body renewal device for a linearly driven water quality probe according to claim 1, characterized in that... The transmission groove spirals from one end of the transmission rod to the other end, and its spiral direction is less than one revolution.

8. The linear-driven water quality probe integrated water body renewal device according to claim 1, characterized in that... Multiple agitator plates are arranged at equal intervals along the circumference of the connecting block, each agitator plate is inclined and gradually rises along the spiral direction from the top end of the transmission rod to the bottom end of the transmission groove.

9. The linear-driven water quality probe integrated water body renewal device according to claim 1, characterized in that... The first water exchange tank is placed above the transmission ring. Multiple first water exchange tanks are arranged at equal intervals along the circumference of the protective chamber. The first water exchange tank extends outward from the axial direction of the protective chamber and is inclined at 15 degrees toward the spiral direction of the transmission tank from top to bottom.

10. The linear-driven water quality probe integrated water body renewal device according to claim 1, characterized in that... The second water exchange tank is placed above the first water exchange tank. Multiple second water exchange tanks are arranged at equal intervals along the circumference of the protective chamber. The second water exchange tanks extend outward from the axial direction of the protective chamber and are inclined at 15 degrees toward the spiral direction of the transmission tank from the bottom to the top.

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