Settlement measuring head device of water pipe type settlement meter

Abstract

The utility model discloses a settlement measuring head device of a water pipe type settlement meter, which comprises a cylinder, the bottom end of the cylinder is provided with a conical base, the side end of the cylinder is sequentially connected with a breather pipe interface, a water filling pipe interface and a drain pipe interface from top to bottom in the vertical direction, and the water filling pipe interface is connected with a measuring cup arranged at the inner end of the cylinder. The inner side of the base is a conical surface, so that no matter whether the settlement measuring head inclines along with the settlement of the dam body or not, water overflowing from the measuring cup can be ensured to be smoothly discharged from the drainage pipe all the time, and the observation work is ensured to be smoothly carried out. Meanwhile, due to the arrangement mode of the pipelines, the cross section size of the whole device can be reduced, the height in the vertical direction is reduced, a protection support does not need to be independently arranged, the follow-up pipeline connection operation space is enlarged, and the connection difficulty is reduced. The device also has a temperature measurement function, can carry out air pressure correction on observation data under temperature influence, and eliminates the influence of air pressure difference caused by internal and external temperature difference on observation results.

Description

Technical Field

[0001] The utility model belongs to the technical field of dam safety monitoring of water conservancy and hydropower engineering, and specifically relates to a water tube type settlement meter settlement probe device. Background Art

[0002] The water tube settlement meter is a device based on the principle of communicating vessels. It utilizes the settlement probe buried inside the dam body to deform synchronously with the dam body. It calculates the settlement of the dam body by measuring the height of the liquid column in the water pipe in the observation room. It is widely used in internal settlement monitoring of earth-rock dams because of its easy-to-understand principle, simple structure and easy processing.

[0003] However, the settlement probe of the traditional water tube settlement instrument has the following shortcomings:

[0004] (1) To ensure smooth drainage of the settlement probe, a drainage pipe is usually set at the bottom of the settlement probe, and the opening is flush with its bottom plane. The settlement probe needs to be adjusted to a horizontal position during installation. However, after installation, as the dam body settles, the settlement probe may tilt. At this time, it is difficult to ensure that the water overflowing from the water filling pipe can be smoothly discharged from the drainage pipe, which has an adverse effect on the observation work.

[0005] (2) To ensure that the internal air pressure of the settlement probe is the same as the external atmospheric pressure, three pipes need to be arranged inside the settlement probe, namely the water filling pipe, the drainage pipe and the ventilation pipe. These three pipes are evenly distributed at the bottom of the settlement probe. To ensure that they do not interfere with each other and that the water in the water filling pipe does not enter the ventilation pipe during water filling, the height of the ventilation pipe is usually higher than the water filling pipe. As a result, the size of the settlement probe is large, which makes it inconvenient to carry and install on site.

[0006] (3) The three pipes arranged at the bottom of the settlement probe need to be connected to the external pipeline through special joints, so it is necessary to strictly ensure that the special joints are safe, stable and not blocked or damaged. Usually, a protective support is set separately at the bottom of the settlement probe to cover the special joint inside the support to prevent the special joint from directly acting on the dam filling material. Although the protection effect is acceptable, the support should not be too large, resulting in very small working space when connecting the external pipes to the special joints, making the connection difficult. In addition, the size of the entire device is further increased, which increases the workload and cost of subsequent pouring of the external concrete protection pier.

[0007] (4) In extremely cold regions, when the temperature drops significantly, the settlement probe does not have the temperature measurement function and is unable to correct the air pressure under the influence of temperature. As a result, the air pressure difference caused by the temperature difference between the inside and outside cannot be eliminated, resulting in abnormal or even erroneous observation data.

[0008] The Chinese utility model patent with publication number CN208398859U discloses a water tube type sedimentation meter, which is fixed by a fixed bracket so that it will not tilt, thereby ensuring the accuracy of the measurement. The Chinese invention patent with publication number CN114370854A discloses a water tube type sedimentation meter probe mechanism, in which an exhaust pipe is connected between the probe box and the observation room, which effectively avoids the problem that the ventilation pipeline cannot be completely discharged during the water filling and exhaust stage, causing the ventilation pipeline to be blocked, resulting in inaccurate measurement results. The above patents achieve the purpose of solving the problem by adding various auxiliary devices on the basis of the sedimentation meter, but they cannot solve all the above problems at one time. Utility Model Content

[0009] In order to solve the above problems, the utility model aims to provide a water tube type sedimentation meter sedimentation probe device.

[0010] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a water tube type sedimentation meter sedimentation probe device, comprising a cylinder, a conical base is arranged at the bottom end of the cylinder, and a ventilation pipe interface, a water filling pipe interface, and a drainage pipe interface are connected to the side end of the cylinder in the vertical direction from top to bottom, and the water filling pipe interface is connected to the measuring cup arranged at the inner end of the cylinder.

[0011] Preferably, the outer side of the base is a plane, and the inner side is a conical surface.

[0012] Preferably, a cover plate is provided at the top end of the cylinder, and a wire outlet hole is opened in the vertical direction of the cover plate.

[0013] Preferably, a high-precision temperature sensor is installed on the inner side of the cover plate, and the cable of the high-precision temperature sensor is led out from the outlet hole of the cover plate. A rubber plug is provided in the outlet hole to tightly wrap the cable of the high-precision temperature sensor and fit tightly with the outlet hole.

[0014] Preferably, the base and the cover plate are welded to the bottom and the top of the cylinder respectively, and the materials of the base, the cover plate and the cylinder include but are not limited to stainless steel and high-strength PE.

[0015] Preferably, the height position at which the drainage pipe interface is arranged is flush with the lowest end of the conical surface of the base.

[0016] Preferably, a threaded opening is provided at the side end of the cylinder, and the ventilation pipe interface, the water filling pipe interface, and the drainage pipe interface are threadedly connected to the cylinder.

[0017] Preferably, the threaded surface of the threaded opening at the side end of the cylinder is evenly coated with waterproof glue.

[0018] Compared with the prior art, the utility model has the following advantages:

[0019] 1. The inner side of the base of this device is a conical surface. Regardless of whether the settlement probe tilts with the settlement of the dam body, it can always ensure that the water overflowing from the measuring cup can be smoothly discharged from the drain pipe, thereby ensuring the smooth progress of the observation work.

[0020] 2. This device sets the ventilation pipe interface, water filling pipe interface, and drainage pipe interface on the side of the cylinder. Compared with the traditional arrangement at the bottom, it can not only reduce the cross-sectional size of the entire device and reduce the vertical height, but also does not need to set up a separate protective bracket, thereby increasing the subsequent pipeline connection operation space, reducing the connection difficulty, and improving work quality and efficiency.

[0021] 3. The high-precision temperature sensor of this device has a temperature measurement function, which can correct the air pressure of the observation data under the influence of temperature, eliminate the influence of the air pressure difference caused by the internal and external temperature difference on the observation results, and improve the accuracy of the observation results. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the specific embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 This is a schematic diagram of the structure of the settlement probe device of the water tube type settlement instrument in the utility model;

[0024] In the figure, 1-cylinder; 2-base; 3-cover plate; 4-measuring cup; 5-water filling pipe interface; 6-drain pipe interface; 7-vent pipe interface; 8-wire outlet hole; 9-high-precision temperature sensor. DETAILED DESCRIPTION

[0025] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments, but it should not be understood that the scope of the subject matter described in the present invention is limited to the following embodiments. Without departing from the above-mentioned technical ideas of the present invention, various modifications, substitutions and changes made according to the common technical knowledge and customary means in the field are included in the scope of the present invention.

[0026] Reference Figure 1 A water pipe type sedimentation meter sedimentation probe device comprises a cylinder 1, wherein the bottom end of the cylinder 1 has a base 2 and the top end is a cover plate 3. The side of the cylinder 1 is connected with a vent pipe interface 7, a water filling pipe interface 5, and a drainage pipe interface 6 in sequence from top to bottom in the vertical direction. The water filling pipe interface 5 is connected to a measuring cup 4.

[0027] The outer side of the base 2 is a plane, and the inner side is a conical surface.

[0028] A high-precision temperature sensor 9 is installed inside the cover plate 3. The cable of the sensor 9 is led out from the outlet hole 8 of the cover plate 3, and the rubber plug in the outlet hole 8 tightly wraps the cable of the sensor 9 and fits tightly to the outlet hole 8 to ensure sealing.

[0029] The base 2 and the cover plate 3 are welded to the cylinder 1. The base 2, the cover plate 3 and the cylinder 1 are preferably made of stainless steel, or high-strength PE material.

[0030] Before the ventilation pipe interface 7, the water filling pipe interface 5, and the drainage pipe interface 6 are threadedly connected with the cylinder 1, waterproof glue needs to be evenly applied on the thread surface.

[0031] The above is a detailed introduction to a water tube type sedimentation meter sedimentation probe device provided by the utility model. This article uses specific examples to illustrate the structure and working principle of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A water tube type sedimentation meter sedimentation probe device, characterized in that: The invention comprises a cylinder (1), wherein a conical base (2) is arranged at the bottom end of the cylinder (1), and a ventilation pipe interface (7), a water filling pipe interface (5), and a drainage pipe interface (6) are connected in sequence from top to bottom in a vertical direction to the side end of the cylinder (1), and the water filling pipe interface (5) is connected to a measuring cup (4) arranged at the inner end of the cylinder (1).

2. The water tube type sedimentation meter sedimentation probe device according to claim 1, characterized in that: The outer side of the base (2) is a plane, and the inner side is a conical surface.

3. The water tube type sedimentation meter sedimentation probe device according to claim 1, characterized in that: A cover plate (3) is arranged at the top end of the cylinder (1), and a wire outlet hole (8) is opened in the vertical direction of the cover plate (3).

4. The water tube type sedimentation meter sedimentation probe device according to claim 3 is characterized in that: A high-precision temperature sensor (9) is installed on the inner side of the cover plate (3); a cable of the high-precision temperature sensor (9) is led out from a wire outlet hole (8) of the cover plate (3); a rubber plug is arranged in the wire outlet hole (8) to tightly wrap the cable of the high-precision temperature sensor (9) and to fit tightly with the wire outlet hole (8).

5. The water tube type sedimentation meter sedimentation probe device according to claim 1 or 3, characterized in that: The base (2) and the cover plate (3) are welded to the bottom and top of the cylinder (1) respectively. The materials of the base (2), the cover plate (3) and the cylinder (1) include but are not limited to stainless steel and high-strength PE.

6. The water tube type sedimentation meter sedimentation probe device according to claim 1, characterized in that: The height position at which the drainage pipe interface (6) is arranged is flush with the lowest end of the conical surface of the base (2).

7. The water tube type sedimentation meter sedimentation probe device according to claim 1, characterized in that: The side end of the cylinder (1) is provided with a threaded opening, and the vent pipe interface (7), the water filling pipe interface (5), and the drainage pipe interface (6) are threadedly connected to the cylinder (1).

8. The water tube type sedimentation meter sedimentation probe device according to claim 1, characterized in that: The thread surface of the threaded opening at the side end of the cylinder (1) is evenly coated with waterproof glue.

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