A float-type staff gauge water level meter integrated with well depth water level measurement

Abstract

This invention discloses a float-type steel tape level gauge for integrated well depth water level measurement, belonging to the technical field of water level measurement instruments. It includes a support plate; an electric winding reel disposed in the middle of the outer wall of the support plate; a steel tape cable wound on the reel; and a waterproof and dustproof housing installed in the middle of the outer wall of the electric winding reel. Through the coordinated operation of the probe housing, guide rod, float body, and water inlet, when the probe is immersed in water, the float body containing a ring magnet rises, triggering the guide rod containing a reed switch to generate a reliable water level signal. When the probe is lifted out of the water, the float body immediately resets under gravity, and the signal is disconnected. This structure achieves physical isolation between the electrical contacts and water, not only eliminating false conductive paths formed by water droplet residue but also avoiding electrolytic oxidation and scaling caused by long-term immersion of the probe in water, thereby significantly improving the accuracy and reliability of water level measurement and extending the probe's service life.

Description

Technical Field

[0001] This invention relates to the field of water level measuring instruments, specifically to a float-type steel ruler water level gauge for integrated well depth water level measurement. Background Technology

[0002] A steel tape level gauge is a traditional hydrological measuring instrument based on the principle of steel tape measurement. It involves vertically placing a graduated steel tape into a body of water, and using the buoyancy or pressure of the water to act on the probe, causing a buzzer or indicator light at the contact point between the steel tape and the water to sound or light up, thus determining the water level. It mainly consists of a steel tape, a probe, a buzzer, an indicator light, and a control device. During use, the probe needs to be lowered manually, and the corresponding scale value on the steel tape is read after the buzzer or indicator light stabilizes. It is commonly used for water level monitoring in rivers, lakes, reservoirs, and other water bodies, and is characterized by its simple structure and low cost.

[0003] Chinese patent CN217996370U discloses a portable steel ruler water level gauge. The sliding connection between the limiting rod and the limiting inner groove facilitates the placement of the entire winding device inside the storage cavity. In addition, the locking groove and the outer support rod are rotated and locked together to simply restrict the winding device after it is stored, preventing the winding device from falling out of the storage cavity.

[0004] Traditional steel ruler water level gauges rely on the probe to form a conductive circuit after contacting the water to trigger a signal and read the value. However, because the probe has a structure that directly contacts the water, when the probe is lifted out of the water, the water resistance effect and the water film or residual water droplets attached to the probe surface often cannot be eliminated immediately. This can easily create a false conductive path between the probes, causing the measurement system to misjudge that the probe is still below the water surface, resulting in false alarms. This leakage phenomenon caused by water droplet adhesion not only seriously affects the measurement accuracy and reliability but also brings about significant operational errors. Summary of the Invention

[0005] The purpose of this invention is to provide a float-type steel tape level gauge for integrated well depth water level measurement, so as to solve the problem of high false alarm rate caused by the probe structure of traditional steel tape level gauges.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a float-type steel tape level gauge for integrated well depth water level measurement, including a support plate; An electric winding reel is disposed in the middle of the outer wall of the support plate; A steel ruler cable is wound on the drum of the electric winding spool; A water level measuring mechanism is installed at the end of the steel tape cable away from the electric winding reel; The water level measuring mechanism includes a probe housing, a guide rod, a float body, and multiple water inlets. The probe housing is installed at the bottom end of the steel ruler cable. The guide rod is installed between the inner walls of both sides of the probe housing. The float body is sleeved on the outer wall of the guide rod. The multiple water inlets are evenly opened on the lower side of the outer wall of the probe housing. A bottom-contact measuring mechanism is installed at the bottom of the water level measuring mechanism; A support base frame is installed at the bottom end of the support plate; A cleaning mechanism is installed on one side of the top of the supporting base frame; A waterproof and dustproof housing is installed in the middle of the outer wall of the electric winding reel.

[0007] Furthermore, the bottom-contact measurement mechanism includes an upper telescopic cylinder, a lower telescopic cylinder, a bottom-contact tray, and a magnet. The upper telescopic cylinder is installed at the bottom end of the probe housing, the lower telescopic cylinder passes through the bottom end of the upper telescopic cylinder, the bottom-contact tray is installed at the bottom end of the lower telescopic cylinder, and the magnet is installed in the middle of the bottom inner wall of the lower telescopic cylinder.

[0008] Furthermore, the bottom-touching measuring mechanism also includes a reset spring, a magnetic switch, and two sealing rings. The reset spring is installed between the top inner wall of the upper telescopic cylinder and the bottom inner wall of the lower telescopic cylinder. The magnetic switch is installed in the middle of the top inner wall of the upper telescopic cylinder. The two sealing rings are respectively installed on the lower side of the inner wall of the upper telescopic cylinder and the upper side of the outer wall of the lower telescopic cylinder.

[0009] Furthermore, casters are installed at the four corners of the bottom of the support frame, a handle is installed at the top of the support plate, a display screen is embedded in the upper side of the outer wall of the waterproof and dustproof box, a buzzer is provided on the right side of the outer wall of the waterproof and dustproof box, a button is provided on the left side of the outer wall of the waterproof and dustproof box, and a battery cover is installed on the lower side of the outer wall of the waterproof and dustproof box.

[0010] Furthermore, the cleaning mechanism includes a cleaning frame, two limiting grooves, an adjustment mechanism, and a reinforcing block. The cleaning frame is installed at the top of the support base. The two limiting grooves are respectively opened in the middle of the inner walls on both sides of the cleaning frame. The adjustment mechanism is installed between the inner walls on the other two sides of the cleaning frame. The reinforcing block is installed in the middle of one end of the cleaning frame, and the other end is fixedly connected to the top of the support base.

[0011] Furthermore, the adjustment mechanism includes a positive and negative screw, an adjustment handle, two adjustment plates, and two cleaning wipes. The positive and negative screw is installed between the inner walls of the two sides of the cleaning frame via bearings. The adjustment handle is installed at one end of the positive and negative screw. The two adjustment plates are respectively threaded onto the outer walls of the positive and negative screw. The two cleaning wipes are respectively installed on the opposite sides of the two adjustment plates.

[0012] Furthermore, the waterproof and dustproof housing is equipped with a signal processing module and a control unit, the guide rod has a reed switch on its upper side, the float body has an embedded annular magnet, and the water inlet has an isolation mesh installed inside.

[0013] Furthermore, the sealing ring is a Glyd ring, the magnetic switch is electrically connected to the waterproof and dustproof housing, and the lower side of the cross-sectional profile of the upper telescopic cylinder and the upper side of the cross-sectional profile of the lower telescopic cylinder are both set as symmetrical double L-shaped structures.

[0014] Furthermore, both sides of the outer wall of the adjustment plate are provided with protrusions, and the protrusions are slidably connected with the corresponding limiting grooves. The reinforcing block is set as a triangular structure.

[0015] Compared with the prior art, the beneficial effects of the present invention are: (1) The present invention achieves a reliable water level signal by working together with the probe housing, guide rod, float body and water inlet. When the probe is immersed in water, the float body containing the ring magnet floats up and triggers the guide rod containing the reed switch. When the probe is lifted out of the water, the float body immediately resets under the action of gravity and the signal is disconnected. This structure realizes the physical isolation between the electrical contact and the water, which not only eliminates the false conductive path formed by water droplet residue, but also avoids electrolytic oxidation and scaling caused by long-term immersion of the probe in water, thereby significantly improving the accuracy and reliability of water level measurement and the service life of the probe.

[0016] (2) Through the coordinated work of components such as the upper telescopic cylinder, the lower telescopic cylinder, the bottom contact tray and the magnet, when the bottom contact tray is pressed after contacting the bottom of the well, the lower telescopic cylinder can drive the magnet to accurately approach the magnetic switch inside the upper telescopic cylinder, triggering an intermittent audio signal that is clearly distinguishable from the continuous audio signal of water level measurement. Combined with the signal recognition function of the signal processing module and the control unit, the water level and well depth can be measured synchronously at one time, which greatly improves the measurement efficiency and reduces the labor cost.

[0017] (3) The present invention solves the problem of mud and water stains on the surface of steel ruler cable affecting the clarity of scale and service life by working together with the cleaning frame, limiting groove, adjustment mechanism and reinforcing block. Through the adjustment mechanism, the cleaning wiping can be closely attached to the surface of steel ruler cable in different conditions, and automatically scrape and clean during the winding process, ensuring clear and intuitive scale reading, reducing wear caused by dirt accumulation, and improving the maintenance convenience and overall durability of the equipment. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is one of the overall structural schematic diagrams provided in the embodiments of the present invention; Figure 2 This is the second overall structural schematic diagram provided for an embodiment of the present invention; Figure 3 Provided for embodiments of the present invention Figure 1 Enlarged view of the structure of A in the middle; Figure 4 A structural cross-sectional view of the water level measuring mechanism is provided for an embodiment of the present invention; Figure 5 A cross-sectional view of the bottom-contact measurement mechanism is provided for embodiments of the present invention; Figure 6 Provided for embodiments of the present invention Figure 5 Enlarged view of the structure of B in the middle; Figure 7 A schematic diagram of the bottom-contact measurement mechanism is provided for embodiments of the present invention; Figure 8 A schematic diagram of the adjustment mechanism is provided for an embodiment of the present invention.

[0020] Explanation of reference numerals in the attached figures: 1. Support plate; 2. Electric winding reel; 3. Steel ruler cable; 4. Water level measuring mechanism; 5. Bottom contact measuring mechanism; 6. Cleaning mechanism; 7. Support base frame; 8. Casters; 9. Handle holder; 10. Waterproof and dustproof housing; 11. Display screen; 12. Buzzer; 13. Button; 14. Battery cover; 41. Probe housing; 42. Guide rod; 43. Float body; 44. Water inlet; 51. Upper telescopic cylinder; 52. Lower telescopic cylinder; 53. Bottom contact tray; 54. Magnet; 55. Return spring; 56. Magnetic switch; 57. Sealing ring; 61. Cleaning frame; 62. Limiting groove; 63. Adjustment mechanism; 64. Reinforcing block; 631. Positive and negative screws; 632. Adjustment handle; 633. Adjustment plate; 634. Cleaning wipe. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0022] As attached Figure 1 To be continued Figure 8 As shown: Example 1: This invention provides a float-type steel tape level gauge for integrated well depth water level measurement, including a support plate 1; The electric winding reel 2 is located in the middle of the outer wall of the support plate 1. It adopts a DC drive design and has automatic forward and reverse control function, which can accurately adjust the lowering and retraction speed of the steel ruler cable 3. The steel ruler cable 3 is wound on the drum of the electric winding reel 2. It integrates a high-strength steel ruler and a signal transmission wire, which combines length measurement accuracy and electrical signal transmission stability. The wire adopts a high impedance series design to reduce signal interference. The water level measuring mechanism 4 is installed at the end of the steel tape cable 3 away from the electric winding reel 2 to achieve accurate capture and transmission of water level signals; The water level measuring mechanism 4 includes a probe housing 41, a guide rod 42, a float body 43, and multiple water inlets 44. The probe housing 41 is installed at the bottom of the steel ruler cable 3 and is integrally formed of 304 stainless steel, which has waterproof and rustproof properties and can resist underwater corrosion environment. The guide rod 42 is installed between the inner walls of both sides of the probe housing 41. The float body 43 is sleeved on the outer wall of the guide rod 42 and adopts a 304 stainless steel liquid level float switch structure. The contacts are encapsulated in the housing, which physically reduces water adhesion and oxidation scaling. Multiple water inlets 44 are evenly opened on the lower side of the outer wall of the probe housing 41. The bottom contact measurement mechanism 5 is installed at the bottom of the water level measurement mechanism 4 and is used to detect the bottom contact status of the equipment and synchronously trigger the well depth measurement signal. The support base 7 is installed at the bottom of the support plate 1 and is made of carbon steel welded to enhance the stability of the equipment when it is placed. Cleaning mechanism 6 is installed on one side of the top of the supporting base frame 7; The waterproof and dustproof housing 10 is installed in the middle of the outer wall of the electric winding reel 2. It adopts an IP65 protection rating design to effectively isolate dust and moisture and ensure the long-term stable operation of the internal electronic components. The support frame 7 is equipped with casters 8 at the four corners of its bottom, which have a self-locking function to facilitate the movement of the equipment between different measurement locations. Once locked, the equipment position can be fixed. The top of the support plate 1 is equipped with a handle 9, which makes it easy for operators to push and pull the equipment. The upper side of the outer wall of the waterproof and dustproof housing 10 is equipped with a display screen 11, which adopts a high-definition LCD display panel and can display water level, well depth, working status and other information in real time. The readings are intuitive and clear. The right side of the outer wall of the waterproof and dustproof housing 10 is equipped with a buzzer 12, which can emit continuous or intermittent audio signals according to different measurement states to provide operators with dual sound and light prompts. The left side of the outer wall of the waterproof and dustproof housing 10 is equipped with a button 13, which is used to control the start, stop and measurement mode switching of the equipment. It adopts a waterproof press design. The lower side of the outer wall of the waterproof and dustproof housing 10 is equipped with a battery cover 14, which adopts a snap-on design to facilitate quick replacement of the built-in battery and ensure the equipment's endurance. The waterproof and dustproof housing 10 is equipped with a signal processing module and a control unit. The signal processing module can amplify, filter and decode the pulse signal transmitted by the probe. The control unit adopts a single-chip microcomputer, which has data processing, storage and command issuance functions and fast response speed. A reed switch is set on the upper side of the guide rod 42. A ring magnet is embedded in the float body 43 as a magnetic switch. The reed switch and the ring magnet work together to achieve accurate triggering of the water level signal and avoid false alarms caused by water resistance of traditional probes. An isolation net is installed inside the water inlet 44 to prevent mud, sand and debris from entering the probe and causing component jamming.

[0023] Working Principle: In use, the device is first moved to the target groundwater well, reservoir, or river measurement location via the casters 8 at the bottom of the support plate 1. The handle 9 is used to adjust the device's position. Then, the electric winding reel 2 is activated, causing the steel tape cable 3 to be released, which slowly lowers the probe housing 41 of the water level measuring mechanism 4. Compared to traditional steel tape water level gauges that rely on the probe contacting the water to conduct the circuit, this steel tape water level gauge guides water into the probe housing 41 through the inlet 44 on the lower side of the outer wall. The inlet 44's internal isolation mesh blocks silt and debris, preventing channel blockage. When the float body 43 enters the probe housing 41 with the water and is subjected to buoyancy, the embedded annular magnet slides along the outer wall of the guide rod 42. The reed switch inside the guide rod 42 senses the change in magnetic field and conducts, emitting a pulse signal. This signal is transmitted through the high impedance of the series resistor and the steel tape cable 3 to the signal processing module and control unit inside the waterproof and dustproof housing 10, identifying the water surface signal. Afterwards, the buzzer 12 emits a continuous audio signal, and the display screen 11 displays the real-time water level data simultaneously. This design fundamentally solves the problems of leakage and false alarms caused by water film adhesion and residual water droplets forming false water paths in traditional water level gauges, as well as poor contact caused by electrolytic oxidation. When the water level measuring mechanism 4 is lifted out of the water surface, water flows out from the inside of the probe housing 41 through the inlet 44, and the float body 43 immediately resets under the action of gravity, and the signal is disconnected. This structure achieves physical isolation between the electrical contacts and the water, which not only eliminates false conductive paths formed by residual water droplets, but also avoids electrolytic oxidation and scaling caused by long-term immersion of the probe in water. This significantly improves the accuracy and reliability of water level measurement and the service life of the probe. After the measurement is completed, the repeatability reading error of the equipment is small, which is far better than the human error of traditional steel ruler water level gauges. The whole process does not require manual judgment of the reading by listening to the buzzer 12 or looking at the indicator light, reducing auditory and visual errors and further improving the reliability and efficiency of measurement.

[0024] Example 2: This embodiment is basically the same as the previous embodiment, except that the bottom-contact measuring mechanism 5 includes an upper telescopic cylinder 51, a lower telescopic cylinder 52, a bottom-contact tray 53, and a magnet 54. The upper telescopic cylinder 51 is installed at the bottom of the probe housing 41 and is made of 304 stainless steel. The inner wall is precision machined to ensure uniform fit clearance with the lower telescopic cylinder 52. The lower telescopic cylinder 52 passes through the bottom of the upper telescopic cylinder 51 and slides with the upper telescopic cylinder 51 to achieve axial telescopic movement. The material is the same as the upper telescopic cylinder 51 and has good wear resistance and corrosion resistance. The bottom-contact tray 53 is installed at the bottom of the lower telescopic cylinder 52 and adopts a frustum structure. The bottom is provided with anti-slip texture to increase the contact area with the bottom of the well and avoid false signal triggering caused by slippage when touching the bottom. The magnet 54 is installed in the middle of the bottom inner wall of the lower telescopic cylinder 52 and is made of neodymium iron boron strong magnetic material. The magnetic strength is stable and the triggering distance is accurate. The bottom-touching measurement mechanism 5 also includes a reset spring 55, a magnetic switch 56, and two sealing rings 57. The reset spring 55 is installed between the top inner wall of the upper telescopic cylinder 51 and the bottom inner wall of the lower telescopic cylinder 52. It is made of stainless steel spring wire with a stable elastic coefficient, which can realize the rapid reset of the lower telescopic cylinder 52 and ensure the consistency of multiple measurements. The magnetic switch 56 is installed in the middle of the top inner wall of the upper telescopic cylinder 51. It is a reed switch magnetic switch with sensitive response and high precision when combined with the magnet 54. It can accurately capture the bottom-touching signal. The two sealing rings 57 are respectively installed on the lower inner wall of the upper telescopic cylinder 51 and the upper outer wall of the lower telescopic cylinder 52. The sealing ring 57 is a Glyd ring, which has a bidirectional sealing function and excellent sealing performance. It can effectively prevent water from entering the inside of the telescopic cylinder and causing corrosion of the components. The magnetic switch 56 is electrically connected to the waterproof and dustproof housing 10 to ensure real-time feedback of the bottoming signal. The lower side of the cross-sectional profile of the upper telescopic cylinder 51 and the upper side of the cross-sectional profile of the lower telescopic cylinder 52 are both set with symmetrical double L-shaped structures, and the double L-shaped structures of the two are compatible with each other to realize the limiting function of telescopic sliding. It can limit the telescopic stroke of the lower telescopic cylinder 52, avoid excessive stretching that could damage the return spring 55, and prevent the lower telescopic cylinder 52 from falling out of the upper telescopic cylinder 51.

[0025] Working principle: To simultaneously measure well depth, the electric winding reel 2 can be controlled to continue lowering the steel tape cable 3. When the bottom contact tray 53 contacts the bottom of the well and is pressed, it drives the lower telescopic cylinder 52 to slide along the upper telescopic cylinder 51, simultaneously compressing the return spring 55. This causes the magnet 54 inside the lower telescopic cylinder 52 to approach the magnetic switch 56 inside the upper telescopic cylinder 51, triggering a bottom contact signal that is transmitted to the control unit. The buzzer 12 then switches to an intermittent audio signal that is clearly distinguishable from the continuous audio signal for water level measurement. The system automatically records the well depth value, achieving both water level and well depth measurements in a single operation. This design completely eliminates the need for traditional steel tape water level measurement. The position gauge requires manual repeated probe lowering and relies on auditory and visual judgment to read the value. This effectively solves the core defects of traditional equipment, such as low efficiency and large human error in manual operation, and significantly improves measurement efficiency and reduces labor costs. At the same time, the sealing ring 57 always maintains the sealing performance between the upper telescopic cylinder 51 and the lower telescopic cylinder 52, ensuring the stability of the telescopic structure and preventing water from entering and corroding the internal components. In addition, the waterproof and dustproof housing 10, battery cover 14, button 13 and cleaning mechanism 6 work together to further ensure the long-term stable operation of the equipment, thereby improving the measurement accuracy and durability of the equipment as a whole.

[0026] Example 3: This embodiment is basically the same as the previous embodiment, except that the cleaning mechanism 6 includes a cleaning frame 61, two limiting grooves 62, an adjustment mechanism 63, and a reinforcing block 64. The cleaning frame 61 is installed on the top of the support base 7 and is made of carbon steel welded together, with high structural strength. The two limiting grooves 62 are respectively opened in the middle of the inner walls on both sides of the cleaning frame 61 to provide sliding guidance for the adjustment plate 633. The groove walls are smoothed to reduce sliding friction resistance. The adjustment mechanism 63 is installed between the inner walls on the other two sides of the cleaning frame 61. The reinforcing block 64 is installed in the middle of one end of the cleaning frame 61, and the other end is fixedly connected to the top of the support base 7. The adjustment mechanism 63 includes a positive and negative screw 631, an adjustment handle 632, two adjustment plates 633, and two cleaning wipes 634. The positive and negative screw 631 is installed between the inner walls of the two sides of the cleaning frame 61 via bearings. The threads at both ends of the screw turn in opposite directions, which can realize the synchronous approach or distance of the two adjustment plates 633. The bearing connection ensures smooth rotation of the screw. The adjustment handle 632 is installed at one end of the positive and negative screw 631. The two adjustment plates 633 are respectively threaded on both sides of the outer wall of the positive and negative screw 631. They are made of engineering plastic, which is lightweight and wear-resistant. The two cleaning wipes 634 are respectively installed on the opposite sides of the two adjustment plates 633. They are made of high-density sponge material with cleaning fibers attached to the surface. They are highly absorbent and soft, which can effectively remove scale, mud and other attachments from the surface of the steel ruler cable 3, while avoiding scratching the steel ruler cable 3. Both sides of the outer wall of the adjustment plate 633 are provided with protrusions. The protrusions and the limiting grooves 62 are in clearance fit, which not only ensures smooth sliding but also prevents the adjustment plate 633 from shifting. The protrusions are slidably connected to the corresponding limiting grooves 62. The reinforcing block 64 is set as a triangular structure. Utilizing the principle of triangle stability, it enhances the firmness of the connection between the cleaning frame 61 and the supporting base 7 and prevents shaking during the cleaning process.

[0027] Working principle: The cleaning mechanism 6 can be operated before and after measurement. By rotating the adjustment handle 632, the positive and negative screws 631 are rotated, causing the adjustment plate 633 to slide smoothly along the limiting groove 62. This, in turn, moves the cleaning wipe 634 to fit against the outer wall of the steel ruler cable 3, achieving precise cleaning of the outer wall of the steel ruler cable 3. This effectively solves the problem that the surface of the steel ruler cable 3 is prone to the adhesion of mud, sand, and water stains during the winding and unwinding process, resulting in decreased scale clarity and shortened service life. Through the flexible adjustment of the adjustment mechanism 63, the cleaning wipe 634 can fit tightly against the outer wall of the steel ruler cable 3. The surface of the steel ruler cable 3, which is in the same clean condition, is automatically scraped and cleaned during the winding process. This design not only ensures clear and intuitive scale readings, but also reduces cable wear caused by the accumulation of dirt, improving the ease of maintenance and overall durability of the equipment. In addition, when the steel ruler water level gauge is not in use, the distance between the two cleaning wipes 634 can be adjusted first, and then the water level measuring mechanism 4 can be placed between the two cleaning wipes 634. The distance can then be adjusted to firmly clamp the water level measuring mechanism 4, ensuring the stability and positioning accuracy of the water level measuring mechanism 4 in the idle state.

[0028] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A float-type steel tape level gauge for integrated well deep water level measurement, characterized in that, include: Support plate (1); An electric winding reel (2) is disposed in the middle of the outer wall of the support plate (1); The steel tape cable (3) is wound on the drum of the electric winding reel (2); A water level measuring mechanism (4) is installed at the end of the steel ruler cable (3) away from the electric winding reel (2); The water level measuring mechanism (4) includes a probe housing (41), a guide rod (42), a float body (43), and multiple water inlets (44). The probe housing (41) is installed at the bottom end of the steel ruler cable (3). The guide rod (42) is installed between the inner walls of both sides of the probe housing (41). The float body (43) is sleeved on the outer wall of the guide rod (42). The multiple water inlets (44) are evenly opened on the lower side of the outer wall of the probe housing (41). Bottom-touching measuring mechanism (5) is installed at the bottom end of the water level measuring mechanism (4); A support base frame (7) is installed at the bottom end of the support plate (1); A cleaning mechanism (6) is installed on one side of the top of the support frame (7); A waterproof and dustproof housing (10) is installed in the middle of the outer wall of the electric winding reel (2).

2. The float-type steel tape level gauge for integrated well depth water level measurement according to claim 1, characterized in that, The bottom-contact measuring mechanism (5) includes an upper telescopic cylinder (51), a lower telescopic cylinder (52), a bottom-contact tray (53), and a magnet (54). The upper telescopic cylinder (51) is installed at the bottom end of the probe housing (41), the lower telescopic cylinder (52) passes through the bottom end of the upper telescopic cylinder (51), the bottom-contact tray (53) is installed at the bottom end of the lower telescopic cylinder (52), and the magnet (54) is installed in the middle of the bottom inner wall of the lower telescopic cylinder (52).

3. The float-type steel tape level gauge for integrated well depth water level measurement according to claim 2, characterized in that, The bottom-touching measuring mechanism (5) also includes a reset spring (55), a magnetic switch (56), and two sealing rings (57). The reset spring (55) is installed between the top inner wall of the upper telescopic cylinder (51) and the bottom inner wall of the lower telescopic cylinder (52). The magnetic switch (56) is installed in the middle of the top inner wall of the upper telescopic cylinder (51). The two sealing rings (57) are respectively installed on the lower side of the inner wall of the upper telescopic cylinder (51) and the upper side of the outer wall of the lower telescopic cylinder (52).

4. The float-type steel tape level gauge for integrated well depth water level measurement according to claim 1, characterized in that, The support base (7) is equipped with casters (8) at the four corners of the bottom end, the support plate (1) is equipped with a handle (9) at the top, the waterproof and dustproof box (10) is embedded with a display screen (11) on the upper side of the outer wall, the waterproof and dustproof box (10) is equipped with a buzzer (12) on the right side of the outer wall, the waterproof and dustproof box (10) is equipped with a button (13) on the left side of the outer wall, and the waterproof and dustproof box (10) is equipped with a battery cover (14) on the lower side of the outer wall.

5. A float-type steel tape level gauge for integrated well depth water level measurement according to claim 1, characterized in that, The cleaning mechanism (6) includes a cleaning frame (61), two limiting grooves (62), an adjustment mechanism (63), and a reinforcing block (64). The cleaning frame (61) is installed on the top of the support base (7). The two limiting grooves (62) are respectively opened in the middle of the inner walls on both sides of the cleaning frame (61). The adjustment mechanism (63) is installed between the inner walls on the other two sides of the cleaning frame (61). The reinforcing block (64) is installed in the middle of one end of the cleaning frame (61), and the other end is fixedly connected to the top of the support base (7).

6. A float-type steel tape level gauge for integrated well depth water level measurement according to claim 5, characterized in that, The adjustment mechanism (63) includes a positive and negative screw (631), an adjustment handle (632), two adjustment plates (633), and two cleaning wipes (634). The positive and negative screw (631) is installed between the inner walls of the two sides of the cleaning frame (61) through bearings. The adjustment handle (632) is installed at one end of the positive and negative screw (631). The two adjustment plates (633) are respectively threaded onto the outer walls of the positive and negative screw (631). The two cleaning wipes (634) are respectively installed on the opposite sides of the two adjustment plates (633).

7. The float-type steel tape level gauge for integrated well depth water level measurement according to claim 1, characterized in that, The waterproof and dustproof housing (10) is equipped with a signal processing module and a control unit. The guide rod (42) is equipped with a reed switch on its upper side. The float body (43) is equipped with an annular magnet. The inlet (44) is equipped with an isolation net.

8. A float-type steel tape level gauge for integrated well depth water level measurement according to claim 3, characterized in that, The sealing ring (57) is a Glyd ring, the magnetic switch (56) is electrically connected to the waterproof and dustproof housing (10), and the lower side of the cross-sectional profile of the upper telescopic cylinder (51) and the upper side of the cross-sectional profile of the lower telescopic cylinder (52) are both set as symmetrical double L-shaped structures.

9. A float-type steel tape level gauge for integrated well depth water level measurement according to claim 6, characterized in that, The outer walls of both sides of the adjustment plate (633) are provided with protrusions, and the protrusions are slidably connected to the corresponding limiting grooves (62). The reinforcing block (64) is set as a triangular structure.

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