Water level measuring scale

Abstract

The utility model belongs to the technical field of water level measuring equipment, particularly relates to a water level measuring scale, and aims to solve the problems that a measuring head is damaged or the sensitivity is reduced and the long-term use of the measuring head is not facilitated due to the fact that the measuring head is easy to collide with a pipe wall in the lowering process due to narrow space when water level measurement is carried out in a drill hole and a water level pipe. According to the scheme, the water level gauge comprises a steel ruler water level gauge body, a wire spool is rotationally installed on an installation frame of the steel ruler water level gauge body, a steel ruler cable is wound around the wire spool, one end of the steel ruler cable is electrically connected with a receiver in the wire spool, and the other end of the steel ruler cable is electrically connected with a measuring head. When the water level measuring device is used, the water level measuring device not only has the function of accurately measuring the water level, but also can effectively prevent the measuring head from colliding with the inner wall of a drill hole or a water level pipe in the lowering process through the protection assembly, so that the service life of the measuring head is prolonged, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of water level measuring equipment, in particular to a water level measuring ruler. Background Art

[0002] Water level measuring rod, also known as water level gauge, is mainly used to measure water surface elevation at designated locations in rivers, lakes or other water bodies. Among them, the more commonly used is the steel water level gauge, which provides the most accurate method of measuring water level. It is usually used to measure the water level in wells, boreholes and water level pipes. It is particularly suitable for observing groundwater levels in hydropower projects or manual inspection of the dam body infiltration line of earth-rock dams.

[0003] When a steel ruler water level gauge is in use, the water level is measured by lowering the steel ruler cable to make the probe at the end contact the water surface. However, when measuring the water level in a borehole or a water level pipe, the small space makes it easy for the probe to collide with the pipe wall during the lowering process, causing damage to the probe or reducing its sensitivity, which is not conducive to the long-term use of the probe.

[0004] In view of the above problems, the utility model document proposes a water level measuring ruler. Utility Model Content

[0005] The utility model provides a water level measuring ruler, which solves the disadvantage in the prior art that when measuring the water level in a borehole or a water level pipe, the probe is easily bumped against the pipe wall during the lowering process due to the narrow space, resulting in damage to the probe or reduced sensitivity, which is not conducive to the long-term use of the probe.

[0006] The utility model provides the following technical solutions:

[0007] A water level measuring ruler, comprising:

[0008] A steel ruler water level gauge body, a winding reel is rotatably mounted on the mounting frame of the steel ruler water level gauge body, a steel ruler cable is wound and rolled on the winding reel, one end of the steel ruler cable is electrically connected to a receiver inside the winding reel, and the other end of the steel ruler cable is electrically connected to a probe, and a rotating shaft in the center of the side wall of the winding reel penetrates the outer wall of the steel ruler water level gauge body mounting frame and is fixedly provided with a hand crank;

[0009] The protective component is arranged on the measuring head and is used to prevent the measuring head from knocking against the inner wall of the drill hole and the water level pipe during the process below the measuring head, thereby increasing the service life of the measuring head.

[0010] In a possible design, the protective component includes a ring disposed on the probe, and two hinged seats are symmetrically fixed on the outer wall of the ring. A U-shaped frame is hinged inside the hinged seat, and a roller for contacting the pipe wall is rotatably installed at the opening of the other end of the U-shaped frame.

[0011] In a possible design, a limit plate is fixedly provided on the top of the hinge seat to prevent the U-shaped frame from turning over, a mounting block is fixedly provided inside the U-shaped frame, and a tension spring is fixedly provided between the mounting block and the limit plate to force the roller to contact the pipe wall.

[0012] In a possible design, the inner wall of the collar is provided with an internal thread, and the side wall of the probe is provided with an external thread matching the internal thread so as to be installed on the disassembly collar.

[0013] In a possible design, an insert tube for inserting and fixing the bottom end of the measuring head is fixedly provided on the mounting frame of the steel ruler water level gauge body so as to accommodate the insert tube.

[0014] In a possible design, a bolt is threadedly connected to the mounting frame of the steel ruler water level gauge body to prevent the winding drum from rotating when not in use, and one end of the bolt passes through the inner wall of the mounting frame and tightly abuts against the outer wall of the winding drum.

[0015] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit the present invention.

[0016] In this application, the specific workflow is as follows:

[0017] Measuring work: Install the probe and the collar together through internal and external threads to ensure that the collar is firmly fixed on the probe, then bend down the U-shaped frame and put the probe into the borehole or water level pipe. Then the operator holds the hand crank and rotates the winding reel counterclockwise to gradually release the steel ruler cable, and the probe then descends into the borehole or water level pipe. During the descending process of the probe, the roller of the protective component contacts the inner wall of the borehole or water level pipe, playing a guiding and anti-collision role. When the probe reaches the predetermined measurement position, the probe contacts the water surface and transmits an electrical signal to the receiver through the steel ruler cable. The receiver issues an alarm to remind the staff to stop turning the hand crank. At this time, the length of the steel ruler cable is the water level depth;

[0018] Work after measurement: Turn the hand crank clockwise to reel the steel ruler cable back into the winding reel, and the measuring head will rise accordingly. When the measuring head is fully retracted, insert the bottom end of the measuring head into the insert tube on the mounting bracket of the steel ruler water level gauge body to store the measuring head to avoid damage or loss, and tighten the bolt on the mounting bracket so that one end of it is close to the outer wall of the winding reel to prevent the winding reel from rotating when not in use, causing the steel ruler cable to loosen.

[0019] The utility model has the following beneficial effects:

[0020] The utility model not only has the function of accurately measuring the water level, but also its protective component can effectively prevent the measuring head from colliding with the inner wall of the borehole or the water level pipe during the lowering process, thereby increasing the service life of the measuring head and reducing the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the three-dimensional structure of a water level measuring ruler provided by an embodiment of the utility model;

[0022] Figure 2 A schematic structural diagram of a water level measuring ruler provided by an embodiment of the utility model from another viewing angle;

[0023] Figure 3 A schematic diagram of the probe structure of a water level measuring ruler provided by an embodiment of the utility model;

[0024] Figure 4 A schematic diagram of the separation structure of the probe and the collar of a water level measuring ruler provided in an embodiment of the utility model.

[0025] Figure numerals: 1. Steel ruler water level gauge body; 2. Winding reel; 3. Steel ruler cable; 4. Probe; 5. Hand crank; 6. Ring; 7. Articulated seat; 8. U-shaped frame; 9. Roller; 10. Limiting plate; 11. Mounting block; 12. Tension spring; 13. Internal thread; 14. External thread; 15. Insertion sleeve; 16. Tighten bolt. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the description of the present invention, it should be understood that the terms "opening", "upper", "middle", "length", "inside" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] In order to keep the following description of the embodiments of the present invention clear and concise, the present invention omits detailed descriptions of known functions and known components.

[0029] Embodiment 1

[0030] Please refer to Figure 1-4 The present application relates to the field of water level measuring equipment, in particular to a water level measuring ruler with a protective component, which is mainly used for measuring water level in a borehole or a water level pipe, and includes:

[0031] The steel ruler water level gauge body 1, model SWJ-80, is equipped with a rotatable winding drum 2, on which a steel ruler cable 3 is wound and rolled, one end of the cable is electrically connected to a receiver inside the winding drum 2, and the other end is electrically connected to a probe 4, which is used to penetrate into the water level pipe to measure the water level. A rotating shaft is provided in the center of the side wall of the winding drum 2, and the rotating shaft passes through the outer wall of the mounting frame of the steel ruler water level gauge body 1, and a hand crank 5 is fixedly provided on the outside thereof, so that the operator can rotate the winding drum 2 by manually cranking the handle, thereby controlling the winding and release of the steel ruler cable 3;

[0032] Considering that the probe 4 may collide with the inner wall of the borehole or the water level pipe during the measurement process, affecting the measurement accuracy and shortening the service life of the probe, a protective component is provided on the probe 4, which mainly includes a collar 6, on the outer wall of which two hinge seats 7 are symmetrically fixedly provided, each hinge seat 7 is hinged with a U-shaped frame 8, and rollers 9 are rotatably installed at the opening of the other end of the U-shaped frame 8. The function of these rollers 9 is to contact with the inner wall of the borehole or the water level pipe during the lowering process of the probe 4, so as to play a guiding and anti-collision role;

[0033] In order to ensure that the roller 9 can always keep in contact with the pipe wall, a limit plate 10 is fixedly arranged on the top of the hinge seat 7 to prevent the U-shaped frame 8 from turning over. At the same time, a mounting block 11 is also fixedly arranged in the U-shaped frame 8. A tension spring 12 is arranged between the mounting block 11 and the limit plate 10. This tension spring 12 can generate a certain tension to keep the roller 9 in close contact with the pipe wall. Even when encountering an uneven pipe wall, the roller 9 can adaptively fit it.

[0034] In order to facilitate maintenance and replacement of the protective component, an internal thread 13 is provided on the inner wall of the collar 6, and an external thread 14 matching the internal thread 13 is provided on the side wall of the probe 4. In this way, when the protective component needs to be removed or replaced, it can be easily completed by rotating the collar 6.

[0035] Embodiment 2

[0036] Improvements based on Example 1:

[0037] Please refer to Figure 1 , an insert 15 is provided on the mounting frame of the steel ruler water level gauge body 1, for storing the bottom end of the probe 4 when not in use, so as to protect the probe 4 and prevent it from being lost or damaged;

[0038] In order to prevent the winding drum 2 from rotating when not in use and causing the steel ruler cable 3 to loosen, a bolt 16 is threadedly connected to the mounting frame. When the water level measuring ruler is not needed, the bolt 16 only needs to be tightened so that one end of the bolt 16 passes through the inner wall of the mounting frame and is tightly against the outer wall of the winding drum 2 to fix the position of the winding drum 2.

[0039] However, as is well known to those skilled in the art, the working principle and wiring method of the steel ruler water level gauge body 1 are commonplace, and are conventional means or common knowledge, and will not be elaborated here. Those skilled in the art may make any selections according to their needs or convenience.

[0040] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited to them. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model; in the absence of conflicts, the embodiments of the utility model and the features in the embodiments can be combined with each other. Therefore, the protection scope of the utility model shall be based on the protection scope of the claims.

Claims

1. A water level measuring ruler, characterized in that: include: A steel ruler water level gauge body (1), a winding drum (2) is rotatably mounted on a mounting frame of the steel ruler water level gauge body (1), a steel ruler cable (3) is wound and rolled on the winding drum (2), one end of the steel ruler cable (3) is electrically connected to a receiver inside the winding drum (2), and the other end of the steel ruler cable (3) is electrically connected to a probe (4), a rotating shaft in the center of the side wall of the winding drum (2) penetrates the outer wall of the mounting frame of the steel ruler water level gauge body (1) and is fixedly provided with a hand crank (5); The protective component is arranged on the measuring head (4) and is used to prevent the measuring head (4) from bumping against the inner wall of the drill hole and the water level pipe during the process below the measuring head (4), thereby increasing the service life of the measuring head (4).

2. A water level measuring ruler according to claim 1, characterized in that: The protection component comprises a collar (6) arranged on the measuring head (4), two hinge seats (7) are symmetrically fixedly arranged on the outer wall of the collar (6), a U-shaped frame (8) is hinged inside the hinge seat (7), and a roller (9) for contacting the pipe wall is rotatably installed at the opening of the other end of the U-shaped frame (8).

3. A water level measuring ruler according to claim 2, characterized in that: A limiting plate (10) is fixedly arranged on the top of the hinge seat (7) to prevent the U-shaped frame (8) from turning up, a mounting block (11) is fixedly arranged inside the U-shaped frame (8), and a tension spring (12) is fixedly arranged between the mounting block (11) and the limiting plate (10) to force the roller (9) to contact the pipe wall.

4. A water level measuring ruler according to claim 2, characterized in that: The inner wall of the collar (6) is provided with an internal thread (13), and the side wall of the probe (4) is provided with an external thread (14) matching the internal thread (13) so as to facilitate installation and removal of the collar (6).

5. A water level measuring ruler according to claim 1, characterized in that: An insert tube (15) for inserting and fixing the bottom end of the measuring head (4) is fixedly arranged on the mounting frame of the steel ruler water level gauge body (1) so as to accommodate the insert tube (15).

6. A water level measuring ruler according to claim 1, characterized in that: A screw bolt (16) is threadedly connected to the mounting frame of the steel ruler water level gauge body (1) to prevent the winding drum (2) from rotating when not in use. One end of the screw bolt (16) passes through the inner wall of the mounting frame and is tightly against the outer wall of the winding drum (2).

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