Steel ruler water level gauge for water pumping test
By introducing a splash-proof mechanism into the steel ruler water level gauge, the problem of splashing and falling interfering with water level measurement is solved, and accurate water level measurement is achieved in the pumping test environment.
Patent Information
- Application Number
- CN202421500071.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-27
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-06-27
AI Technical Summary
In the drilling and pumping test of water conservancy and hydropower projects, the water level gauge of the steel ruler is easily disturbed by splashing water, resulting in the water level measurement that cannot be carried out normally.
A steel ruler water level gauge for water pumping tests is designed, using a splash-proof mechanism, including a cover, limit ring, connecting rod, baffle and airbag, to prevent splashing and direct contact with the cable and ensure signal accuracy.
It effectively prevents water splash from interfering with water level measurement, ensuring the accuracy and reliability of water level measurement results in complex testing environments.
Smart Images
Figure CN222652326U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of water level measuring equipment, and in particular to a steel ruler water level gauge used for water pumping test. Background Art
[0002] The steel ruler water level gauge is the most effective instrument for accurately measuring water level. It is usually used to measure water levels in wells, boreholes and water level pipes. It is particularly suitable for groundwater level observation in water conservancy and hydropower projects.
[0003] In the relevant existing technology, the steel ruler water level meter is mainly composed of a probe, a steel ruler cable, a receiving system and a winding reel. When measuring, let the winding reel rotate freely, press the power button, put the probe into the water level pipe, hold the steel ruler cable in hand, and let the probe slowly move downward. When the contact of the probe touches the water surface, the sounder of the receiving system will emit a continuous buzzing sound. At this time, the depth of the steel ruler cable at the pipe mouth is read and written, which is the distance of the groundwater level from the pipe mouth.
[0004] However, in the drilling and pumping test of water conservancy and hydropower projects, it is necessary to conduct a non-steady flow pumping test. After the test begins, when the water pump starts to pump water, a large amount of water flows out of the filter pipe of the water source well, splashing water, and the water level drops rapidly in a short period of time. When the steel ruler water level gauge measures the water level, the stainless steel probe of about 10cm long is very easy to contact the splashing water on the upper part. When water falls on the contact, the sounder will make a sound, resulting in the inability to measure the water level normally during the test. Utility Model Content
[0005] In order to improve the problem of water splashing onto the measuring head interfering with the water level measurement, the present application provides a steel ruler water level gauge for pumping test.
[0006] The present application provides a steel ruler water level gauge for a pumping test, which adopts the following technical solution:
[0007] A steel ruler water level gauge used for a pumping test comprises a measuring head, a steel ruler, a receiving system and a winding reel, wherein the steel ruler is wound on the winding reel, a cable is provided on the outer side of the steel ruler, one end of the cable is electrically connected to the receiving system, and the other end of the cable is flush with the end of the steel ruler; the measuring head is tubular, the end of the steel ruler and the other end of the cable are both inserted into the measuring head, and an anti-splashing mechanism is connected to the upper part of the measuring head through a thread, and the anti-splashing mechanism is used to prevent water from splashing on the other end of the cable.
[0008] By adopting the above technical scheme, in the process of observing the water level, the water splashes caused by excessive water outflow from the filter pipe of the water source well will splash onto the anti-splash mechanism and will not directly contact the end of the cable. The receiving system will not receive the corresponding signal. Only when the end of the cable is completely in contact with the water surface will a signal be generated, prompting the operator to stop lowering the steel ruler, which will not be affected by the splashes of water, thereby improving the accuracy of the test results in complex test environments.
[0009] Optionally, the upper end surface of the measuring head and the steel ruler are fixed and sealed by tape, and two support rods are provided between the lower end surface of the measuring head and the steel ruler, and the two support rods are respectively located on both sides of the steel ruler and fix the steel ruler.
[0010] By adopting the above technical solution, the two support rods fix the ends of the steel ruler, ensuring that the ends of the steel ruler will not collide or move inside the measuring head during the process of retracting and extending the steel ruler, ensuring that the ends of the steel ruler can be reliably fixed.
[0011] Optionally, the anti-splash mechanism includes a cover, which is trumpet-shaped and screwed onto the upper portion of the probe via a thread, and the outer diameter of the cover gradually increases from top to bottom.
[0012] By adopting the above technical solution, before placing the probe into the test well, the cover is screwed onto the upper part of the outer wall of the probe, so that the splashing water will fall on the cover, slide down along the top of the cover and fall to the outside of the probe, thereby not interfering with the cable in the probe.
[0013] Optionally, the anti-splash mechanism includes a limit ring, two connecting rods and two baffles, the limit ring is screwed on the upper part of the probe by a thread, the two connecting rods are symmetrically arranged on both sides of the probe, one end of the connecting rod is connected to the limit ring, and the other end of the connecting rod is connected to the baffle, and the two baffles are connected to each other in a straight state and are located below the probe.
[0014] By adopting the above technical solution, when the limit ring is screwed into place, the connecting rod and the baffle are in a fixed state, so that the limit ring can shield the splashing water, and the setting of the baffle can prevent the water splashing upward from directly entering the inner side of the measuring head, thereby further improving the anti-interference ability during the test.
[0015] Optionally, one baffle plate and one connecting rod and another baffle plate and another connecting rod are connected via bolts, and the two baffle plates cover the lower end surface of the measuring head in the vertical direction.
[0016] By adopting the above technical solution, the baffle and the connecting rod can be quickly disassembled and assembled under the action of the bolts, thereby facilitating the disassembly and assembly of the limit ring. In this way, after the test is completed, the anti-splash mechanism can be quickly removed to facilitate the recovery of the probe.
[0017] Optionally, a movable ring is provided below the limiting ring, an annular airbag is provided between the movable ring and the baffle, the airbag is wrapped around the outside of the probe, the two connecting rods pass through the movable ring and the airbag in sequence, the bottom of the airbag is in contact with the baffle, the top of the airbag is fixedly connected to the limiting ring, and the airbag and the movable ring slide along the axial direction of the connecting rod.
[0018] By adopting the above technical solution, when observing the water level and lowering the measuring head, under the downward pressure of the gravity of the movable ring, the bottom of the airbag will contact the bottom of the baffle, so that the airbag and the two baffles will completely wrap the lower end surface of the measuring head, thereby preventing the splashing water from interfering with the cable's sensing of the water level to the greatest extent; when the baffle enters below the water surface, the airbag will drive the movable ring to move upward, so that when the bottom of the airbag floats to be flush with the water surface, the lower end surface of the measuring head is also flush with the horizontal, and at this time, a more accurate water level measurement result can be obtained.
[0019] Optionally, the maximum distance between the top of the movable ring and the bottom of the limiting ring is greater than the distance between the top of the baffle and the lower end surface of the measuring head.
[0020] By adopting the above technical solution, it is ensured that the airbag has a sufficient floating distance, thereby ensuring that the lower end surface of the probe can contact the water surface.
[0021] Optionally, a shell for placing a measuring probe is provided on the winding reel, and the shell is connected to the winding reel via a bracket. A plurality of hydrophobic holes are provided at the bottom of the shell, and a sponge cover is provided on the inner side of the shell. The inner diameter of the sponge cover gradually decreases from top to bottom, and the maximum outer diameter of the sponge cover is larger than the outer diameter of the measuring probe, and the minimum outer diameter of the sponge cover is smaller than the outer diameter of the measuring probe.
[0022] By adopting the above technical solution, after the water level observation is completed, the anti-splash mechanism is removed, and then the probe can be inserted into the sponge cover to store the probe. Under the wrapping effect of the sponge cover, the probe can be prevented from being damaged by impact during the movement. At the same time, the sponge cover can also absorb moisture in the probe to prevent the probe from rusting.
[0023] In summary, this application has the following beneficial effects:
[0024] 1. By rotating the winding drum, the steel ruler can be wound on and off the winding drum, and then the probe can be retracted and released. When observing the water level, the probe is lowered into the test well. When the cable in the probe contacts the water surface of the test well, the receiving system on the winding drum sends an indication signal to prompt the operator to stop lowering the probe. Then the corresponding scale of the steel ruler is recorded to obtain the water level information.
[0025] 2. During the lowering process of the probe, a large amount of water splashes generated by the pumping and drainage operations will splash onto the probe being lowered. The anti-splash mechanism can prevent the water splashes from gathering on the surface of the probe and flowing to the lower end face of the probe, thereby avoiding interference from the water splashes and ensuring that the probe can accurately measure the water level of the test well. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] Figure 1 is a schematic three-dimensional diagram of embodiment 1;
[0027] Figure 2 is a reference diagram of the assembly state of the anti-splash mechanism in the first embodiment;
[0028] Figure 3 is a cross-sectional view of the internal structure of the shell;
[0029] Figure 4 is a schematic three-dimensional diagram of the second embodiment;
[0030] Figure 5 is a reference diagram of the assembly state of the anti-splash mechanism in the second embodiment;
[0031] Figure 6 This is a reference diagram of the action state of the anti-splash mechanism in the second embodiment;
[0032] In the figure: 1. probe; 10. support rod; 2. steel ruler; 3. receiving system; 4. winding reel; 41. shell; 410. drain hole; 42. bracket; 43. sponge cover; 5. cable; 6. splash-proof mechanism; 61. cover; 62. limit ring; 63. connecting rod; 630. bolt; 64. baffle; 65. movable ring; 66. airbag. DETAILED DESCRIPTION
[0033] The following is combined with Figure 1-6 This application is described in further detail.
[0034] The embodiment of the present application discloses a steel ruler water level gauge for a water pumping test.
[0035] Embodiment 1
[0036] Figure 1 is a schematic three-dimensional diagram of the first embodiment, Figure 2 1 is a reference diagram of the assembly state of the splash-proof mechanism in the first embodiment. Figure 1 and Figure 2 The steel ruler water level gauge for pumping test includes a probe 1, a steel ruler 2, a receiving system 3 and a winding drum 4. The steel ruler 2 is wound on the winding drum 4. A cable 5 is arranged on the outer side of the steel ruler 2. The cable 5 is attached to the outer edge of the steel ruler 2 and can be connected by plastic technology, which can prevent the steel ruler 2 from rusting. It also realizes that when the winding drum 4 is rotated and the steel ruler 2 is lowered, the cable 5 can also be lowered synchronously. One end of the cable 5 is connected to the receiving system 3 wire, and the other end of the cable 5 is flush with the end of the steel ruler 2. In this way, when the end of the steel ruler 2 contacts the water surface of the test well, the measuring point formed by the other end of the cable 5 can also contact the water surface at the same time. The probe 1 is tubular, and the end of the steel ruler 2 and the other end of the cable 5 are both inserted into the probe 1. A tape is wound between the steel ruler 2 and the upper end surface of the probe 1. The tape can fix the steel ruler 2 and seal the gap between the steel ruler 2 and the probe 1. Two support rods 10 are provided on the inner side of the lower end surface of the measuring head 1 . The two support rods 10 are respectively located on both sides of the steel ruler 2 , and also play a role in fixing the steel ruler 2 .
[0037] When observing the water level of the test well, rotate the winding reel 4, lower the steel ruler 2 and the probe 1 into the test well. When the cable 5 in the probe 1 contacts the water surface, the signal will be transmitted to the receiving system 3, and the receiving system 3 will issue a prompt such as a buzzer or a change in the index of the voltmeter. At this time, the operator stops lowering the steel ruler 2, and the reading of the steel ruler 2 at the wellhead of the test well is the water level value.
[0038] See also Figure 2 A splash-proof mechanism 6 is provided on the upper part of the outer wall of the probe 1. The splash-proof mechanism 6 includes a cover 61. The cover 61 is trumpet-shaped and is screwed on the upper part of the probe 1 through a thread. The outer diameter of the cover 61 gradually increases from top to bottom. In this way, when water splashes downward, it will first fall to the top of the cover 61 and slide along the top of the cover 61 to the outside of the probe 1, thereby preventing the water splash from contacting the measuring point of the cable 5 in the probe 1, and effectively preventing the splashing water from affecting the water level observation operation.
[0039] Figure 3 This is a cross-sectional view of the internal structure of the shell. Figure 3 Combined with Figure 1 A shell 41 for placing the probe 1 is provided on the winding reel 4, and the shell 41 is connected to the winding reel 4 through a bracket 42. After the water level observation of the test well is completed, the steel ruler 2 and the probe 1 are retracted, and the splash-proof mechanism 6 on the probe 1 is removed from the outer wall of the probe 1, and then the probe 1 can be inserted into the shell 41 to achieve the fixation and storage of the probe 1.
[0040] A hydrophobic hole 410 is provided at the bottom of the shell 41, and a sponge cover 43 is provided inside the shell 41. The opening of the sponge cover 43 is flush with the opening of the shell 41, and the inner diameter of the sponge cover 43 gradually decreases from top to bottom. The maximum outer diameter of the sponge cover 43 is greater than the outer diameter of the probe 1, and the minimum outer diameter of the sponge cover 43 is less than the outer diameter of the probe 1. When the probe 1 is inserted into the bottom of the sponge cover 43, the sponge cover 43 can reliably clamp the probe 1. Otherwise, the probe 1 will fall out of the shell 41 during the transportation of the winding reel 4. Furthermore, the sponge cover 43 can also absorb the moisture in the probe 1 to prevent the probe 1 and the cable 5 from rusting or being damaged. Then, the sponge cover 43 is squeezed by the probe 1, and the moisture absorbed by the sponge cover 43 can be discharged to the outside of the shell 41 through the hydrophobic hole 410, thereby improving the protection effect of the probe 1.
[0041] Embodiment 2
[0042] The difference between the second embodiment and the first embodiment is that:
[0043] Figure 4 is a schematic three-dimensional diagram of the second embodiment, Figure 5 2 is a reference diagram of the assembly state of the splash-proof mechanism in the second embodiment. Figure 4 and Figure 5 The anti-splash mechanism 6 includes a limit ring 62, two connecting rods 63 and two baffles 64. The limit ring 62 is screwed on the upper part of the probe 1 through a thread and is in a relatively fixed position. The two connecting rods 63 are arranged at the bottom of the limit ring 62 and are located on both sides of the outer wall of the probe 1. The end of the connecting rod 63 away from the limit ring 62 is detachably connected to the baffle 64 by a bolt 630. When the two baffles 64 are installed in a straight state, they will form a covering effect on the lower end surface of the probe 1 in the vertical direction. In this way, the water splashing upward will be blocked by the two baffles 64 and cannot contact the measuring point of the cable 5.
[0044] A movable ring 65 is sleeved on the outer wall of the probe 1, and the movable ring 65 is located below the limiting ring 62. At the same time, an airbag 66 is provided between the bottom of the movable ring 65 and the top of the baffle 64. A channel for the connecting rod 63 to pass through is provided on the end surfaces of the movable ring 65 and the airbag 66, so that the connecting rod 63 can pass through the movable ring 65 and the airbag 66 at one time, forming a limiting and supporting effect on the movable ring 65 and the airbag 66, ensuring that the movable ring 65 and the airbag 66 can slide along the axial direction of the connecting rod 63. The top of the airbag 66 is fixedly connected to the bottom of the movable ring 65, and there is no connection between the bottom of the airbag 66 and the baffle 64. The overall outer diameter of the two baffles 64 is larger than the outer diameter of the airbag 66, ensuring that the baffle 64 can reliably stay on the top of the baffle 64 under the downward pressure of the gravity of the movable ring 65.
[0045] There is a distance between the baffle 64 and the lower end surface of the probe 1, so that when the bottom of the airbag 66 contacts the top of the baffle 64, the lower end surface of the probe 1 can be completely wrapped by the airbag 66 and the baffle 64, which effectively improves the protection effect of the cable 5 and avoids water splashing onto the end of the cable 5 during the lowering of the probe 1 to the greatest extent. In addition, the maximum distance between the top of the movable ring 65 and the bottom of the limit ring 62 is greater than the distance between the top of the baffle 64 and the lower end surface of the probe 1, ensuring that the airbag 66 has sufficient floating distance so as not to affect the lowering of the probe 1.
[0046] Figure 6 2 is a reference diagram of the operating state of the anti-splash mechanism in the second embodiment. Figure 6 As the probe 1 continues to be lowered, the baffle 64 will first contact the water surface. At this time, the end of the probe 1 has not yet contacted the water surface. When the baffle 64 continues to move downward, the airbag 66 remains relatively still under the action of buoyancy. At this time, the distance between the baffle 64 and the airbag 66 is enlarged, and the sealing effect of the airbag 66 on the lower end surface of the probe 1 is released. At the same time, the airbag 66 still has a wrapping effect on the outer wall of the probe 1. That is to say, the probe 1 can move toward the water surface under the protection of the airbag 66 until the lower end surface of the probe 1 contacts the water surface, thereby completing the water level measurement of the test well without interference, significantly improving the accuracy of the measurement results.
[0047] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A steel ruler water level gauge for pumping test, characterized in that: The invention comprises a measuring head (1), a steel ruler (2), a receiving system (3) and a winding drum (4), wherein the steel ruler (2) is wound on the winding drum (4), a cable (5) is arranged on the outer side of the steel ruler (2), one end of the cable (5) is electrically connected to the receiving system (3), and the other end of the cable (5) is flush with the end of the steel ruler (2); The measuring head (1) is tubular, and the end of the steel ruler (2) and the other end of the cable (5) are both inserted into the measuring head (1). The upper part of the measuring head (1) is connected to a splash-proof mechanism (6) via a thread, and the splash-proof mechanism (6) is used to prevent water from splashing onto the other end of the cable (5).
2. The steel ruler water level gauge for pumping test according to claim 1, characterized in that: The upper end surface of the measuring head (1) and the steel ruler (2) are fixed and sealed by adhesive tape, and two support rods (10) are provided between the lower end surface of the measuring head (1) and the steel ruler (2), and the two support rods (10) are respectively located on both sides of the steel ruler (2) and fix the steel ruler (2).
3. The steel ruler water level gauge for pumping test according to claim 2, characterized in that: The anti-splash mechanism (6) comprises a cover (61) which is trumpet-shaped and is screwed onto the upper part of the probe (1) via a thread. The outer diameter of the cover (61) gradually increases from top to bottom.
4. The steel ruler water level gauge for pumping test according to claim 2, characterized in that: The anti-splash mechanism (6) comprises a limit ring (62), two connecting rods (63) and two baffles (64); the limit ring (62) is screwed onto the upper part of the probe (1) through a thread; the two connecting rods (63) are symmetrically arranged on both sides of the probe (1); one end of the connecting rod (63) is connected to the limit ring (62); the other end of the connecting rod (63) is connected to the baffle (64); the two baffles (64) are butt-jointed in a straight state and are located below the probe (1).
5. The steel ruler water level gauge for pumping test according to claim 4, characterized in that: One baffle plate (64) and one connecting rod (63) as well as another baffle plate (64) and another connecting rod (63) are connected via bolts (630), and the two baffle plates (64) cover the lower end surface of the measuring head (1) in the vertical direction.
6. The steel ruler water level gauge for pumping test according to claim 4, characterized in that: A movable ring (65) is provided below the limiting ring (62), and an annular airbag (66) is provided between the movable ring (65) and the baffle (64). The airbag (66) is wrapped around the outer side of the measuring head (1). The two connecting rods (63) pass through the movable ring (65) and the airbag (66) in sequence. The bottom of the airbag (66) contacts the baffle (64), and the top of the airbag (66) is fixedly connected to the limiting ring (62). The airbag (66) and the movable ring (65) slide along the axial direction of the connecting rod (63).
7. The steel ruler water level gauge for pumping test according to claim 6, characterized in that: The maximum distance between the top of the movable ring (65) and the bottom of the limiting ring (62) is greater than the distance between the top of the baffle (64) and the lower end surface of the measuring head (1).
8. The steel ruler water level gauge for pumping test according to any one of claims 1 to 7, characterized in that: The winding reel (4) is provided with a shell (41) for placing the probe (1); the shell (41) is connected to the winding reel (4) via a bracket (42); a plurality of hydrophobic holes (410) are provided at the bottom of the shell (41); a sponge cover (43) is provided on the inner side of the shell (41); the inner diameter of the sponge cover (43) gradually decreases from top to bottom; the maximum outer diameter of the sponge cover (43) is greater than the outer diameter of the probe (1); and the minimum outer diameter of the sponge cover (43) is smaller than the outer diameter of the probe (1).