A reservoir dam piezometric tube nozzle protection device

Abstract

The utility model relates to pressure measuring pipe mouth technical field, and disclose a kind of reservoir dam pressure measuring pipe mouth protection device, including pipe mouth body, the surface of pipe mouth body is fixedly connected with two sliding rods, the circular arc surface sliding connection of two sliding rods has protective plate, the lower surface of protective plate is fixedly connected with sealing ring.This kind of reservoir dam pressure measuring pipe mouth protection device, reached to the double effect of efficient sealing protection and stable fixation to reservoir dam pressure measuring pipe mouth body, form the double sealing structure of inner plug and outer seal, can effectively block rainwater, silt, weeds and other impurities into pressure measuring pipe inside, avoid long time use, external impurities enter pipe mouth body, lead to impurity block pipeline, influence the accuracy of pressure measuring data, while pipe mouth body inner wall corrosion occurs due to long-term contact with impurities, cause the service life of pipe mouth body to reduce the situation appears, improve the security of device.

Description

Technical Field

[0001] This utility model relates to the field of pressure measuring pipe inlet technology, and in particular to a protection device for pressure measuring pipe inlet of a reservoir dam. Background Technology

[0002] In the field of reservoir dam safety monitoring, piezometers are the core facility for monitoring dam seepage pressure and assessing dam stability. Piezometers allow for real-time acquisition of water level and seepage pressure data within the dam, which is directly used to assess whether the dam has potential safety hazards such as leakage or piping. Existing piezometer inlet protection devices for reservoir dams have significant technical limitations in terms of sealing protection and ease of maintenance, seriously threatening the accuracy of monitoring data and the lifespan of the piezometers.

[0003] Regarding the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: In the pipe opening protection stage, traditional pressure measuring pipes often use simple cover plates or single rubber plugs for sealing, resulting in poor sealing reliability. The simple cover plates do not fit tightly with the pipe opening, allowing rainwater and silt to easily seep in through the gaps. The single rubber plugs are exposed to the outdoor environment for a long time and are prone to aging and cracking due to sun and rain, leading to sealing failure. Impurities (such as silt, weeds, and insect corpses) can enter the pressure measuring pipe and clog the pipe or sensor probe, causing distortion of pressure measurement data (such as a seepage pressure deviation of 20%-30%), or even paralyzing the monitoring system and failing to provide timely warnings of dam safety risks. Utility Model Content

[0004] The technical problem to be solved by this utility model is that, in the prior art, after long-term use, external impurities enter the pipe body, causing impurities to block the pipe and affecting the accuracy of pressure measurement data. At the same time, the inner wall of the pipe body is corroded due to long-term contact with impurities, resulting in a reduction in the service life of the pipe body. To address this, we propose a pipe body protection device for pressure measuring pipes in reservoir dams.

[0005] To achieve the above objectives, this application adopts the following technical solution: a pipe end protection device for a reservoir dam pressure measuring pipe, comprising a pipe end body, two sliding rods fixedly connected to the surface of the pipe end body, a protective plate slidably connected to the arc surfaces of the two sliding rods, a sealing ring fixedly connected to the lower surface of the protective plate, a rubber plug fixedly connected to the lower surface of the sealing ring, two fixing rods fixedly connected to the arc surface of the pipe end body, an operating plate slidably connected to the arc surface of the fixing rods, an insertion rod fixedly connected to one side of the operating plate, two fixing plates fixedly connected to the surface of the protective plate, and insertion holes formed on the surface of the fixing plates.

[0006] Preferably, one end of the fixing rod is fixedly connected to a limiting plate, and the size of the insertion rod is adapted to the size of the insertion hole of the fixing plate.

[0007] Preferably, a first spring is fitted onto the arc surface of the fixing rod, and the two ends of the first spring are fixedly connected to the operating plate and the pipe body, respectively.

[0008] Preferably, an elastic ring is fixedly connected to one side of the operating panel, and the elastic ring is slidably connected to the arc surface of the fixed rod.

[0009] Preferably, one end of each of the two sliding rods is fixedly connected to a rain cap, and the arc surface of the rain cap is fixedly connected to a deflector plate.

[0010] Preferably, two magnetic rings are fixedly connected to the surface of the protective plate, and the two magnetic rings are slidably connected to two sliding rods respectively. Two magnetic blocks are fixedly connected to the lower surface of the rain cap.

[0011] Preferably, a protective net is fixedly connected to the lower surface of the guide plate, and the protective net is made of galvanized steel wire.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] In this invention, the combined use of a sliding rod, a protective plate, a sealing ring, and a rubber plug achieves both efficient sealing and stable fixation of the piezometer pipe body in a reservoir dam. This forms a double-sealing structure with an inner plug and an outer seal, effectively preventing rainwater, silt, weeds, and other impurities from entering the piezometer pipe. This avoids the entry of external impurities into the pipe body after prolonged use, which could clog the pipe and affect the accuracy of the pressure measurement data. Simultaneously, it prevents corrosion of the inner wall of the pipe body due to long-term contact with impurities, thus reducing the pipe body's service life and improving the safety of the device. Attached Figure Description

[0014] The disclosure of this utility model is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings, the same reference numerals are used to refer to the same parts:

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 In this utility model Figure 1 Partial structural diagram;

[0017] Figure 3 In this utility model Figure 2 Partial structural diagram;

[0018] Figure 4 This is a schematic diagram of the sealing ring in this utility model.

[0019] Legend: 1. Pipe body; 2. Sliding rod; 3. Protective plate; 4. Sealing ring; 5. Rubber plug; 6. Fixing rod; 7. Operating plate; 8. Insert rod; 9. Fixing plate; 10. Limiting plate; 11. First spring; 12. Elastic ring; 13. Rain cap; 14. Guide plate; 15. Magnetic ring; 16. Magnetic block; 17. Protective net. Detailed Implementation

[0020] It is readily understood that, based on the technical solution of this utility model, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this utility model. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative descriptions of the technical solution of this utility model and should not be considered as the entirety of this utility model or as limitations or restrictions on the technical solution of this utility model.

[0021] Reference Figure 1-4As shown, this utility model provides a technical solution: a pipe end protection device for a reservoir dam pressure measuring pipe, including a pipe end body 1. Two sliding rods 2 are fixedly connected to the surface of the pipe end body 1. A protective plate 3 is slidably connected to the arc surface of the two sliding rods 2. A sealing ring 4 is fixedly connected to the lower surface of the protective plate 3. A rubber plug 5 is fixedly connected to the lower surface of the sealing ring 4. Two fixing rods 6 are fixedly connected to the arc surface of the pipe end body 1. An operating plate 7 is slidably connected to the arc surface of the fixing rods 6. An insertion rod 8 is fixedly connected to one side of the operating plate 7. Two fixing plates 9 are fixedly connected to the surface of the protective plate 3. Insertion holes are opened on the surface of the fixing plates 9. When the staff needs to protect the pipe end body 1, they press the protective plate 3, and the protective plate 3 slides down the arc surface of the sliding rods 2. The movement of the rubber plug 5 and sealing ring 4 causes them to move downwards until they seal the pipe body 1. At this point, the operating plate 7 is pushed, causing the insertion rod 8 to move until it is inserted into the hole of the fixing plate 9. This achieves both efficient sealing and stable fixation of the pipe body 1 of the dam pressure measuring pipe, forming a double-sealing structure of inner plug and outer seal. This effectively prevents rainwater, silt, weeds, and other impurities from entering the pressure measuring pipe, avoiding the entry of external impurities into the pipe body 1 after prolonged use, which could clog the pipe and affect the accuracy of the pressure measurement data. It also prevents corrosion of the inner wall of the pipe body 1 due to long-term contact with impurities, thus reducing its service life and improving the safety of the device. One end of the fixed rod 6 is fixedly connected to a limiting plate 10. The size of the insertion rod 8 is adapted to the size of the insertion hole of the fixed plate 9. The limiting plate 10 achieves the effect of limiting the maximum sliding distance of the operating plate 7 on the arc surface of the fixed rod 6, avoiding the situation where the operating plate 7 detaches from the arc surface of the fixed rod 6 due to excessive pulling force when the operator pulls it. The arc surface of the fixed rod 6 is fitted with a first spring 11. The two ends of the first spring 11 are fixedly connected to the operating plate 7 and the tube body 1, respectively. The first spring 11 achieves the effect of automatically bringing the insertion rod 8 back, and at the same time improves the stability of the insertion rod 8 when it is limited by the fixed plate 9. One side of the operating plate 7 is fixedly connected to a spring ring 12, which is slidably connected to the arc surface of the fixed rod 6. The elastic band wraps around the arc surface of the fixed rod 6, thereby slowing down the sliding speed of the operating plate 7 on the arc surface of the fixed rod 6 and reducing the impact of external sliding on the operating plate 7, thus providing a damping effect. A rain cap 13 is fixedly connected to one end of each of the two sliding rods 2. A guide plate 14 is fixedly connected to the arc surface of the rain cap 13. The combined use of the rain cap 13 and the guide plate 14 achieves the effect of blocking and diverting rainwater, thereby further reducing the impact of the external environment on the pipe body 1 on rainy days. Two magnetic rings 15 are fixedly connected to the surface of the protective plate 3, and the two magnetic rings 15 are slidably connected to the two sliding rods 2 respectively. Two magnetic blocks 16 are fixedly connected to the lower surface of the rain cap 13, achieving the effect of limiting the opened protective plate 3 to below the rain cap 13.This facilitates monitoring and maintenance of the inside of the pipe body 1 by staff. A protective net 17 is fixedly connected to the lower surface of the guide plate 14. The protective net 17 is made of galvanized steel wire. The galvanized steel wire protective net 17 can block outdoor birds and insects, and its flexibility allows staff to easily lift it to operate the device.

[0022] Working principle: When the pipe body 1 needs to be sealed and protected, the operator presses down on the protective plate 3, causing it to slide along the two sliding rods 2 on the surface of the pipe body 1. Simultaneously, the protective plate 3 moves the sealing ring 4 and rubber plug 5 on its lower surface downwards until the rubber plug 5 is embedded inside the pipe body 1 and the sealing ring 4 fits against the end face of the pipe, forming a double sealing structure of "inner plug + outer seal," preventing rainwater, mud, weeds, and other impurities from entering the pressure testing pipe. At this time, the operating plate 7 on the fixed rod 6 (fixed to the arc surface of the pipe body 1) automatically slides under the elastic force of the first spring 11 (both ends connected to the operating plate 7 and the pipe body 1 respectively), driving the insertion rod 8 to insert into the insertion hole of the fixed plate 9 on the surface of the protective plate 3, completing the fixed positioning of the protective plate 3 and preventing accidental displacement. The limiting plate 10 at one end of the fixed rod 6 prevents the operating plate 7 from detaching due to excessive force when pulled. The elastic ring 12 on one side of the operating plate 7 wraps around the fixed rod 6, slowing down the sliding speed of the operating plate 7 and reducing the impact of external shaking. The damping effect further ensures the stability of the device. When monitoring and maintenance of the inside of the pipe body 1 are required, the operating plate 7 is pulled to overcome the elastic force of the first spring 11, causing the insertion rod 8 to disengage from the insertion hole of the fixing plate 9. The protective plate 3 is then pushed upward along the sliding rod 2 until the magnetic ring 15 on the surface of the protective plate 3 is attracted to the magnetic block 16 on the lower surface of the rain cap 13 at the top of the sliding rod 2, thus limiting the protective plate 3 below the rain cap 13 and preventing it from obstructing the operating space. The rain cap 13, in conjunction with the arc-shaped guide plate 14, can block and divert rainwater, reducing the direct impact of rainwater on the pipe opening on rainy days. The galvanized steel wire protective net 17 on the lower surface of the guide plate 14 can prevent outdoor birds and insects from entering the device. Its flexibility makes it easy for staff to lift and operate, ensuring both the protective effect and the convenience of maintenance. The entire device, through the synergy of multiple protective structures, effectively avoids problems such as impurities clogging the pipe and pipe opening corrosion, ensuring the accuracy of pressure measurement data and the service life of the pipe opening.

[0023] The technical scope of this utility model is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the protection scope of this utility model.

Claims

1. A protection device for the inlet of a piezometer pipe in a reservoir dam, characterized in that, The device includes a pipe body (1), on the surface of which two sliding rods (2) are fixedly connected. A protective plate (3) is slidably connected to the arc surface of the two sliding rods (2). A sealing ring (4) is fixedly connected to the lower surface of the protective plate (3). A rubber plug (5) is fixedly connected to the lower surface of the sealing ring (4). Two fixing rods (6) are fixedly connected to the arc surface of the pipe body (1). An operating plate (7) is slidably connected to the arc surface of the fixing rods (6). An insertion rod (8) is fixedly connected to one side of the operating plate (7). Two fixing plates (9) are fixedly connected to the surface of the protective plate (3). An insertion hole is opened on the surface of the fixing plate (9).

2. The protection device for the inlet of a piezometer pipe in a reservoir dam according to claim 1, characterized in that: One end of the fixing rod (6) is fixedly connected to the limiting plate (10), and the size of the insertion rod (8) is adapted to the size of the insertion hole of the fixing plate (9).

3. The protection device for the inlet of a piezometer pipe in a reservoir dam according to claim 1, characterized in that: The arc surface of the fixing rod (6) is fitted with a first spring (11), and the two ends of the first spring (11) are fixedly connected to the operating plate (7) and the pipe body (1) respectively.

4. The protection device for the inlet of a piezometer pipe in a reservoir dam according to claim 1, characterized in that: An elastic ring (12) is fixedly connected to one side of the operating plate (7), and the elastic ring (12) is slidably connected to the arc surface of the fixing rod (6).

5. The piezometer inlet protection device for a reservoir dam according to claim 1, characterized in that: One end of each of the two sliding rods (2) is fixedly connected to a rain cap (13), and the arc surface of the rain cap (13) is fixedly connected to a guide plate (14).

6. The piezometer inlet protection device for a reservoir dam according to claim 5, characterized in that: Two magnetic rings (15) are fixedly connected to the surface of the protective plate (3), and the two magnetic rings (15) are slidably connected to two sliding rods (2) respectively. Two magnetic blocks (16) are fixedly connected to the lower surface of the rain cap (13).

7. A protection device for the inlet of a piezometer pipe in a reservoir dam according to claim 5, characterized in that: The lower surface of the guide plate (14) is fixedly connected to a protective net (17), which is made of galvanized steel wire.

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