Surface water measuring device

Abstract

The utility model relates to a surface water measuring device which comprises a measuring rod used for being inserted into water, one end of the measuring rod is provided with a hinge seat and a reference rod, one end of the reference rod is connected with the bottom end of the hinge seat, and the other end of the reference rod extends vertically and downwards; one end of the measuring rod is hinged to the bottom end of the hinge seat, and the plane of the rotation track is parallel to the reference rod. The problem that in the prior art, some surface water (such as a river) is flowing, the flowing water can apply thrust to a rope or a heavy object, the rope is bent or the heavy object moves along with the water, and the measurement error of the depth of the surface water is large is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydrogeological survey technical field, concretely relates to a surface water measuring device. BACKGROUND

[0002] Hydrogeological survey refers to the hydrogeological investigation and research work for finding out the hydrogeological conditions of an area. The main purpose is to master the genesis, distribution and movement law of groundwater and surface water, and to provide basis for rational exploitation and utilization of water resources, correct design and construction of foundation engineering and piling engineering. Among them, the hydrological parameters of surface water (rivers, lakes, reservoirs, etc.) are one of the important indicators of hydrogeological survey, and the hydrological parameters of surface water include water depth, flow rate, river width, etc.

[0003] In the prior art, when measuring the water depth of surface water, the original method is to use a rope to hang a weight, sink the weight to the bottom of the water, and mark the position of the rope on the water surface. The length of the segment from the marked point on the rope to the weight is measured, and the length is taken as the depth of the surface water. However, some surface water (such as rivers) is flowing, and the flowing water body will exert a pushing force on the rope or the weight, causing the rope to bend or the weight to move with the water body, resulting in a large error in the measurement of the depth of the surface water. UTILITY MODEL CONTENT

[0004] Therefore, the utility model aims to provide a surface water measuring device to solve the problem that some surface water (such as rivers) is flowing in the prior art, and the flowing water body will exert a pushing force on the rope or the weight, causing the rope to bend or the weight to move with the water body, resulting in a large error in the measurement of the depth of the surface water.

[0005] The utility model is implemented by the following technical solutions:

[0006] A surface water measuring device comprises a measuring rod for insertion into water, one end of the measuring rod is provided with a hinge seat and a reference rod, one end of the reference rod is connected with the bottom end of the hinge seat, and the other end extends vertically downward;

[0007] One end of the measuring rod is hinged with the bottom end of the hinge seat, and the plane of the rotation track is parallel to the reference rod.

[0008] Further, the hinge seat comprises a support plate with a U-shaped notch at the bottom end and a hinge shaft embedded in the notch of the support plate, one end of the hinge shaft is fixedly connected with one side wall of the support plate, the other end sequentially penetrates the measuring rod and the reference rod and is fixedly connected with the other side wall of the support plate, and the measuring rod and the reference rod are rotationally matched with the hinge shaft.

[0009] Further, the end face of one end of the measuring rod facing the hinge seat is provided with a groove matched with the shape of the reference rod, and the reference rod is rotatably embedded in the groove.

[0010] Furthermore, the reference rod has a first scale line evenly arranged around the circumference of the hinge axis on one side along the axial direction of the hinge axis.

[0011] The measuring rod has an observation hole that penetrates the measuring rod on one side away from the reference rod, and the first scale line is located on the rotation trajectory of the observation hole.

[0012] Furthermore, a reading groove is provided on the side wall of the observation hole. Both ends of the reading groove extend axially toward the hinge shaft and are connected. The side of the reading groove facing away from the observation hole extends radially toward the hinge shaft.

[0013] Furthermore, a storage groove extending axially toward the hinge shaft is provided on the upper side of the middle part of the hinge shaft, and a friction strip parallel to the hinge shaft is provided in the storage groove.

[0014] The friction strip sidewall and the receiving groove slide in a radial fit along the hinge axis, and the top wall protrudes out of the opening of the receiving groove and abuts against the measuring rod and the reference rod;

[0015] An adjustment part is provided between the friction strip and the hinge shaft to drive the friction strip to slide within the storage groove.

[0016] Furthermore, the adjustment part includes a rotating rod disposed below the friction strip, one end of the rotating rod extending through one end wall of the storage groove and out of the support plate, and the rotating rod is coaxially rotatably engaged with the hinge shaft;

[0017] The outer circular surface of the middle part of the rotating rod is provided with a protrusion extending axially towards the rotating rod. When the side of the protrusion facing away from the rotating rod abuts against the bottom edge of the friction strip, the top edge of the friction strip protrudes out of the opening of the receiving groove and abuts against the measuring rod and the reference rod.

[0018] Furthermore, a handle is provided above the support plate, the bottom end of the handle is hinged to the top surface of the support plate, and the plane of the rotation trajectory is perpendicular to the hinge axis.

[0019] Furthermore, the measuring rod has a second scale line evenly arranged along its length on its side.

[0020] Furthermore, an extension rod is provided at one end of the measuring rod facing away from the hinge seat. One end of the extension rod is detachably connected to the measuring rod, and the other end extends in the length direction of the measuring rod.

[0021] The beneficial effects of this utility model are as follows:

[0022] This surface water measuring device inserts the measuring rod into the bottom of the water at the end facing away from the hinge seat. By collecting the length from the bottom of the measuring rod to the point of contact with the water surface, this length is taken as the depth of the surface water. This can reduce the influence of rope bending on the measurement data, thereby reducing the error in surface water depth measurement.

[0023] Meanwhile, by measuring the angle between the reference rod and the measuring rod, and using the cosine function in right-angle trigonometric functions, the vertical height of the measuring rod can be calculated and used as the depth of the surface water, thus further reducing the error in measuring the surface water depth.

[0024] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present utility model;

[0026] Figure 2 This is an exploded view of an embodiment of the present utility model;

[0027] Figure 3 This is a three-dimensional structural diagram of the hinge seat in an embodiment of the present utility model;

[0028] Figure 4 This is a three-dimensional structural diagram of the standard rod in an embodiment of this utility model;

[0029] Figure 5 This is a three-dimensional structural diagram of the measuring rod in an embodiment of the present utility model;

[0030] Figure 6 This is a three-dimensional structural diagram of the extension rod in an embodiment of this utility model.

[0031] In the diagram: 1. Measuring rod; 11. Groove; 12. Observation hole; 13. Reading slot; 14. Second scale line; 15. Extension rod; 16. Threaded hole; 2. Hinge seat; 21. Support plate; 211. Rotating shaft; 22. Hinge shaft; 221. Storage slot; 3. Reference rod; 31. First scale line; 4. Friction strip; 5. Rotating rod; 51. Protrusion; 6. Handle. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0034] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0035] In the above description of this utility model, it should be noted that the terms "one side," "the other side," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0036] Furthermore, terms such as "identical" do not imply that components must be absolutely identical; minor differences are permissible. The term "perpendicular" simply means that the positional relationship between components is more perpendicular than "parallel," not that the structure must be perfectly perpendicular; a slight tilt is acceptable.

[0037] Please see Figures 1-6 This utility model provides a technical solution: a surface water measuring device, including a measuring rod 1 for insertion underwater, one end of the measuring rod 1 is provided with a hinge seat 2 and a reference rod 3, one end of the reference rod 3 is connected to the bottom end of the hinge seat 2, and the other end extends vertically downward;

[0038] One end of the measuring rod 1 is hinged to the bottom end of the hinge seat 2, and the plane of the rotation trajectory is parallel to the reference rod 3.

[0039] In this scheme, the end of the measuring rod 1 facing away from the hinge seat 2 is inserted into the bottom of the water. By collecting the length from the bottom of the measuring rod 1 to the point of contact with the water surface, this length is taken as the depth of the surface water. This reduces the influence of rope bending on the measurement data, thereby reducing the error in measuring the surface water depth. At the same time, by measuring the angle between the reference rod 3 and the measuring rod 1, and using the cosine function in right-angle trigonometric functions, the vertical height of the measuring rod 1 is calculated and taken as the depth of the surface water, further reducing the error in measuring the surface water depth.

[0040] The measuring rod 1 is made of rigid materials such as plastic, which gives it a certain rigidity and makes it less likely to be bent by water flow. The length of the reference rod 3 is much smaller than that of the measuring rod 1, so that when the end of the measuring rod 1 facing away from the hinge seat 2 is inserted into the bottom of the water, the reference rod 3 is above the water surface, reducing the influence of water flow on the vertical state of the reference rod 3.

[0041] Furthermore, a leveling device such as a disc-type universal level (e.g., Wuyi Huaguan Leveling Instrument YY-9017) can be installed on the hinged seat 2 or the reference rod 3. The bubble moves within the disc to help adjust the tilt angle of the reference rod 3, so that the reference rod 3 is in a vertical state.

[0042] Additionally, the formula for the cosine function in right-angle trigonometric functions is b = c × cosα, where b is the vertical height of measuring rod 1, c is the length from the bottom of measuring rod 1 to the point of contact with the water surface, and α is the angle between the reference rod 3 and the measuring rod 1. Since each angle corresponds to a unique cosine value within the range of 0° to 180° (or 0 to π radians), the value of cosα can be obtained by consulting a trigonometric function table or using a calculator. c can be measured using measuring equipment such as a tape measure. Therefore, the verticality of b can be determined.

[0043] In this embodiment: the hinge seat 2 includes a support plate 21 with a U-shaped notch at the bottom and a hinge shaft 22 embedded in the notch of the support plate 21. One end of the hinge shaft 22 is fixedly connected to one side wall of the support plate 21, and the other end passes through the measuring rod 1 and the reference rod 3 in sequence and is fixedly connected to the other side wall of the support plate 21. The measuring rod 1 and the reference rod 3 are both rotatably engaged with the hinge shaft 22.

[0044] In this design, one end of the hinge shaft 22 passes through the measuring rod 1 and the reference rod 3, allowing both the measuring rod 1 and the reference rod 3 to rotate around the hinge shaft 22. When the hinge shaft 22 is in a horizontal state, the measuring rod 1 rotates on the hinge shaft 22 under its own weight and automatically adjusts to a vertical state, making the operation simple and convenient.

[0045] Among them, a strip level (such as Sangao Industry and Trade 150*0.02) can be set on the support plate 21. The bubble moves along the length of the strip level to help adjust the hinge shaft 22 to be horizontal, which is simpler and more convenient to operate than a universal level.

[0046] In this embodiment: the end face of the measuring rod 1 facing the hinge seat 2 is provided with a groove 11 that matches the shape of the reference rod 3, and the reference rod 3 can be rotatably embedded in the groove 11.

[0047] In this design, the groove 11 is used to house the reference rod 3. When storing or transporting the device, the reference rod 3 can be embedded in the groove 11, and the measuring rod 1 can be used as a protective barrier for the reference rod 3, reducing the probability of the reference rod 3 being damaged by bumps.

[0048] In this embodiment: the reference rod 3 is provided with a first scale line 31 evenly arranged around the circumference of the hinge shaft 22 on one side along the axial direction of the hinge shaft 22;

[0049] The measuring rod 1 has an observation hole 12 through it on one side facing away from the reference rod 3, and the first scale line 31 is located on the rotation trajectory of the observation hole 12.

[0050] In this scheme, the first scale line 31 is used to record the angle between the measuring rod 1 and the reference rod 3. By setting the reference rod 3 in the groove 11, the side wall of the groove 11 covers most of the first scale line 31. Relevant technicians can read the corresponding angle on the first scale line 31 in the area of ​​the observation hole 12 through the observation hole 12, thereby narrowing the reading range and making it easier to quickly obtain the angle between the measuring rod 1 and the reference rod 3.

[0051] The angle recording range of the first scale line 31 is 0 degrees to 90 degrees. When the reference rod 3 is in a vertical state, if the lowest first scale line 31 corresponds to 0 degrees (the reference rod 3 is housed in the groove 11 and is in a parallel state), that is, the highest scale line is 90 degrees (the measuring rod 1 and the reference rod 3 are in a perpendicular state), the first scale line 31 that is parallel to the measuring rod 1 within the range of 0 degrees to 90 degrees is the angle between the measuring rod 1 and the reference rod 3.

[0052] In this embodiment: a reading groove 13 is provided on the side wall of the observation hole 12. Both ends of the reading groove 13 extend axially toward the hinge shaft 22 and are connected. The side of the reading groove 13 facing away from the observation hole 12 extends radially toward the hinge shaft 22.

[0053] In this scheme, the reading groove 13 is used as a marker for the measuring rod 1 to be opposite to the first scale line 31. When reading the corresponding angle on the first scale line 31 in the area of ​​the observation hole 12 through the observation hole 12, the degree represented by the first scale line 31 located in the reading groove 13 is the angle between the measuring rod 1 and the reference rod 3, which is convenient and fast to read.

[0054] In this embodiment: a storage groove 221 extending axially toward the hinge shaft 22 is provided on the upper side of the middle part of the hinge shaft 22, and a friction strip 4 parallel to the hinge shaft 22 is provided in the storage groove 221.

[0055] The sidewall of the friction strip 4 slides radially with the storage groove 221 along the hinge axis 22, and the top wall protrudes out of the opening of the storage groove 221 and abuts against the measuring rod 1 and the reference rod 3;

[0056] An adjustment part is provided between the friction strip 4 and the hinge shaft 22 to drive the friction strip 4 to slide within the receiving groove 221.

[0057] In this design, the friction strip 4 is used to restrict the rotation of the measuring rod 1 and the reference rod 3 on the hinge shaft 22. The two ends of the friction strip 4 abut against the two end walls of the receiving groove 221, and the two side walls of the friction strip 4 are in contact with the two side walls of the receiving groove 221. The receiving groove 221 extends radially toward the hinge shaft 22 from the plane opposite to the opening, so that the friction strip 4 can only slide radially along the hinge shaft 22 within the receiving groove 221.

[0058] The friction strip 4 has a coating that increases friction or is sandblasted to give it a high coefficient of friction. The friction strip 4 is driven to slide in the receiving groove 221 by the adjustment part, so that the upper surface of the friction strip 4 protrudes from the opening of the receiving groove 221 and abuts against the inner wall of the hinge hole of the measuring rod 1 and the inner wall of the hinge hole of the reference rod 3. The friction force locks the measuring rod 1 and the reference rod 3, keeping their relative positions unchanged, which facilitates the measurement or reading of the angle between the measuring rod 1 and the reference rod 3.

[0059] In this embodiment: the adjustment part includes a rotating rod 5 disposed below the friction strip 4. One end of the rotating rod 5 passes through the storage groove 221 and extends out of the support plate 21. The rotating rod 5 is coaxially rotated with the hinge shaft 22.

[0060] A protrusion 51 extending axially toward the rotating rod 5 is provided on the outer circular surface of the middle part of the rotating rod 5. When the side of the protrusion 51 facing away from the rotating rod 5 abuts against the bottom edge of the friction strip 4, the top edge of the friction strip 4 protrudes out of the opening of the receiving groove 221 and abuts against the measuring rod 1 and the reference rod 3.

[0061] In this design, the two edges of the friction strip 4 in the width direction of its bottom surface are rounded. It rotates on the support plate 21 via the rotating rod 5, allowing the measuring rod 1 and the reference rod 3 to be in a locked state and a free state. In the locked state, the protrusion 51 simultaneously abuts against the inner circular surfaces of the hinge holes of the measuring rod 1 and the reference rod 3. In the free state, the protrusion 51 disengages from contact with the measuring rod 1 and the reference rod 3, and the friction strip 4 slides downwards under its own gravity, fully embedding itself into the receiving groove 221.

[0062] In use, simply manually drive the rotating rod 5 to rotate at one end of the support plate 21 to adjust the position of the convex strip 51, so that the measuring rod 1 and the reference rod 3 can switch between locked and free states. The operation is simple and convenient.

[0063] In this embodiment: a handle 6 is provided above the support plate 21, the bottom end of the handle 6 is hinged to the top surface of the support plate 21, and the plane of the rotation trajectory is perpendicular to the hinge axis 22.

[0064] In this design, the handle 6 has holes on its side for gripping. The top surface of the support plate 21 has a rotating shaft 211 perpendicular to the hinge shaft 22. The bottom end of the handle 6 has a protrusion for connecting to the support plate 21. One end of the rotating shaft 211 passes through the protrusion of the handle 6, extends out of the protrusion of the handle 6, and is rotatably engaged. Both ends of the rotating shaft 211 are fixedly connected to the top surface of the support plate 21, so that the hinge seat 2 can rotate on the handle 6 to adjust the hinge shaft 22 to a horizontal state.

[0065] In this embodiment: the measuring rod 1 has a second scale line 14 that is evenly arranged along the length of the measuring rod 1 on its side.

[0066] In this scheme, the second scale line 14 is used to record the length of the measuring rod 1. When using it, you only need to check and read the value of the second scale line 14 corresponding to the contact position between the water surface and the measuring rod 1. This value is the length of the section of the measuring rod 1 below the water surface. There is no need to take out the measuring rod 1 to measure its length, which simplifies the work steps and improves work efficiency.

[0067] In this embodiment: an extension rod 15 is provided at one end of the measuring rod 1 facing away from the hinge seat 2. One end of the extension rod 15 is detachably connected to the measuring rod 1, and the other end extends in the length direction of the measuring rod 1.

[0068] In this design, a threaded hole 16 is provided on the end face of the measuring rod 1 facing away from the hinge seat 2, and an external thread is provided on the end of the extension rod 15 facing the measuring rod 1. The threaded end of the extension rod 15 is screwed into the threaded hole 16 and connected by the threaded engagement, so that the extension rod 15 can be unscrewed from the measuring rod 1 and removed.

[0069] When using the device to measure the depth of surface water, if the measuring section of the measuring rod 1 is fully inserted below the water surface but still does not touch the bottom, the extension rod 15 can be installed on the measuring rod 1 to increase the length of the measuring rod 1 and use the extension rod 15 to touch the bottom.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A surface water measuring device, comprising a measuring rod (1) for insertion underwater, characterized in that: The measuring rod (1) is provided with a hinge seat (2) and a reference rod (3) at one end. One end of the reference rod (3) is connected to the bottom end of the hinge seat (2), and the other end extends vertically downward. One end of the measuring rod (1) is hinged to the bottom end of the hinge seat (2), and the plane of the rotation trajectory is parallel to the reference rod (3).

2. The surface water measuring device according to claim 1, characterized in that: The hinge seat (2) includes a support plate (21) with a U-shaped notch at the bottom and a hinge shaft (22) embedded in the notch of the support plate (21). One end of the hinge shaft (22) is fixedly connected to one side wall of the support plate (21), and the other end passes through the measuring rod (1) and the reference rod (3) in sequence and is fixedly connected to the other side wall of the support plate (21). The measuring rod (1) and the reference rod (3) are both rotatably engaged with the hinge shaft (22).

3. The surface water measuring device according to claim 2, characterized in that: The measuring rod (1) has a groove (11) on its end face facing the hinge seat (2) that is adapted to the shape of the reference rod (3), and the reference rod (3) can be rotatably embedded in the groove (11).

4. The surface water measuring device according to claim 2, characterized in that: The reference rod (3) has a first scale line (31) evenly arranged around the circumference of the hinge shaft (22) on one side along the axial direction of the hinge shaft (22); The measuring rod (1) has an observation hole (12) that passes through the measuring rod (1) on one side away from the reference rod (3), and the first scale line (31) is located on the rotation trajectory of the observation hole (12).

5. The surface water measuring device according to claim 4, characterized in that: The observation hole (12) has a reading groove (13) on its side wall. Both ends of the reading groove (13) extend axially and through the hinge shaft (22). The side of the reading groove (13) facing away from the observation hole (12) extends radially toward the hinge shaft (22).

6. The surface water measuring device according to claim 2, characterized in that: The upper side of the middle part of the hinge shaft (22) is provided with a storage groove (221) extending axially toward the hinge shaft (22), and a friction strip (4) parallel to the hinge shaft (22) is provided in the storage groove (221). The sidewall of the friction strip (4) slides radially with the receiving groove (221) along the hinge axis (22), and the top wall protrudes out of the opening of the receiving groove (221) and abuts against the measuring rod (1) and the reference rod (3); An adjustment part is provided between the friction strip (4) and the hinge shaft (22) for driving the friction strip (4) to slide in the receiving groove (221).

7. The surface water measuring device according to claim 6, characterized in that: The adjustment part includes a rotating rod (5) disposed below the friction strip (4). One end of the rotating rod (5) passes through the end wall of the storage groove (221) and extends out of the support plate (21). The rotating rod (5) is coaxially rotated with the hinge shaft (22). The rotating rod (5) has a protruding strip (51) extending axially toward the rotating rod (5) on its outer circular surface in the middle. When the side of the protruding strip (51) facing away from the rotating rod (5) abuts against the bottom edge of the friction strip (4), the top edge of the friction strip (4) protrudes out of the opening of the receiving groove (221) and abuts against the measuring rod (1) and the reference rod (3).

8. The surface water measuring device according to claim 2, characterized in that: A handle (6) is provided above the support plate (21). The bottom end of the handle (6) is hinged to the top surface of the support plate (21), and the plane of the rotation trajectory is perpendicular to the hinge axis (22).

9. The surface water measuring device according to claim 1, characterized in that: The measuring rod (1) has a second scale line (14) evenly arranged along the length of the measuring rod (1) on its side.

10. The surface water measuring device according to claim 1, characterized in that: An extension rod (15) is provided at one end of the measuring rod (1) facing away from the hinge seat (2). One end of the extension rod (15) is detachably connected to the measuring rod (1), and the other end extends in the length direction of the measuring rod (1).

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