A sedimentation instrument protection device for water conservancy safety monitoring

Abstract

The utility model discloses a sedimentation meter protection device for water conservancy safety monitoring, which is assembled on the outer side wall of the sedimentation meter in a borehole, the sedimentation meter comprises a transmission rod and a sensor assembled on the upper end of the transmission rod; the sedimentation meter protection device comprises an arm guard sleeve, a sheath pipe, a support ring and a connecting structure; the arm guard sleeve is assembled on the outer side of the transmission rod, the sheath pipe is sleeved on the outer side of the sensor, the support ring comprises an upper support ring and a lower support ring, the upper support ring is assembled on the upper end of the sheath pipe, the lower support ring is sleeved on the transmission rod, and the connecting structure is assembled between the arm guard sleeve and the sheath pipe; through the protection of the arm guard sleeve, the transmission rod can transmit data more stably, thereby ensuring the accuracy of the monitoring result; the sheath pipe can prevent external substances such as soil and moisture from directly contacting the sensor, thereby avoiding damage to the sensor or interference with its normal operation; when the concrete dam foundation is consolidated and the curtain is grouted, the protection device ensures that the sedimentation meter is not affected and accurate detection results are obtained.

Description

Technical Field

[0001] The utility model relates to the technical field of safety monitoring engineering, in particular to a sedimentation instrument protection device for water conservancy safety monitoring. Background Art

[0002] In order to effectively monitor the vertical displacement changes of the dam foundation, in addition to setting measuring points on the dam top for overall monitoring of vertical displacement, settlement monitoring instruments should be installed on the dam foundation to monitor the foundation settlement in real time. Dam foundation settlement monitoring is a rigid connection between the anchor end in the bedrock and different depths of the strata and the sensor fixed on the foundation surface. When the dam foundation settles, the relative length of the upper and lower ends is compressed. Assuming that the anchor end buried in the bedrock surface is a fixed point, the displacement changes of the foundation surface and different depths of the strata can be calculated. When the relative displacement of the two ends of the rod-type settlement meter sensor changes, the tension of the sensor element in the instrument will change through the instrument end block, thereby changing the vibration frequency or resistance of the steel string. The sensor data is measured by the reading device or data acquisition system, and then the change in the relative displacement of the anchor end between the foundation surface and the strata at different depths can be obtained by conversion, thereby calculating the displacement change of the foundation surface and the strata at different depths.

[0003] In the "Monitoring Instruments and Equipment for Underwater Foundation Layered Settlement Measurement and Its Setting Method" disclosed in publication number CN105780822A, the bottom flange of the rigid reference tube is on the non-compressed soil layer at the bottom of the borehole, and the top is a certain distance away from the borehole mouth. It is characterized in that a plurality of groups of layered settlement measurement mechanisms are arranged in parallel on the rigid reference tube; the layered settlement measurement mechanism consists of a displacement meter and a displacement block; the displacement meter is fixed on the rigid reference tube; the displacement block is mounted on the rigid reference tube; each displacement block is embedded in the covering soil layer; a connecting assembly is provided between the displacement meter and the displacement block; the displacement rod is inserted into the cavity of the displacement meter; the displacement rod is fixed to the center screw hole of the connecting assembly by threading; the connecting assembly is screwed into the screw hole of the displacement block and fixed on the displacement block; the signal cable of the displacement meter is led to the ground along the rigid reference tube. The equipment and method for measuring the stratified settlement of underwater foundations proposed by the above device are easy to install, simple to measure, and can realize automatic measurement; however, during the consolidation of the concrete dam foundation and the curtain grouting, it will have an adverse effect on the above monitoring instrument, resulting in inaccurate detection data, and the sensor is easily in contact with other substances such as soil and water, affecting the detection results. Summary of the invention

[0004] In order to overcome the above-mentioned defects in the prior art, a sedimentation meter protection device for water conservancy safety monitoring is provided for a rod-type sedimentation meter.

[0005] The technical solution of the utility model is as follows: a protective device for a sedimentation meter for water conservancy safety monitoring, which is assembled on the outer wall of the sedimentation meter in the borehole, and the sedimentation meter includes a transmission rod and a sensor assembled on the upper end of the transmission rod; the sedimentation meter protective device includes an arm guard, a sheath tube, a support ring and a connecting structure; the arm guard is assembled on the outer side of the transmission rod, the sheath tube is sleeved on the outer side of the sensor, the support ring includes an upper support ring and a lower support ring, the upper support ring is assembled on the upper end of the sheath tube, the lower support ring is sleeved on the transmission rod, and the connecting structure is assembled between the arm guard and the sheath tube. Through the protection of the arm guard, the transmission rod can transmit data more stably to ensure the accuracy of the monitoring results; the sheath tube can prevent foreign substances such as soil and moisture from directly contacting the sensor, thereby avoiding damage to the sensor or interfering with its normal operation; the support ring provides stable support for the entire protective device, and the connecting structure ensures the tight connection between the arm guard and the sheath tube, so that it can fit tightly on the sedimentation meter and is not easy to be displaced or fall off. During the consolidation of the concrete dam foundation and the curtain grouting, ensure that the settlement meter is not affected and obtain accurate test results.

[0006] Preferably, the sheath tube has a tapered structure with a thick top and a thin bottom, and the outer wall of the upper end of the sheath tube and the inner wall of the upper support ring are connected by threads. The sheath tube enhances the sealing of the protective device, further prevents moisture and soil from entering the device, and ensures the accuracy of the detection results.

[0007] Preferably, the connecting structure includes an upper connecting rod and a connecting assembly, the upper connecting rod is assembled on the outer side wall of the upper support ring, the connecting assembly is assembled on the upper end of the arm guard, and the upper connecting rod and the connecting assembly are detachably connected. The connecting structure ensures a stable connection between the sedimentation meter protective device and the sedimentation meter. The structural stability of the entire device is improved, and its reliability is enhanced, ensuring continuous and stable operation in complex environments. The detachable connection makes the installation process simple and quick, and the operator can easily complete the installation of the entire protective device. At the same time, when maintenance or replacement of parts is required, the operator can easily disassemble the connecting structure for repair or replacement operations, which greatly improves the maintenance efficiency.

[0008] Preferably, the connection assembly includes a mounting plate, a connection seat and an anchor rod, the connection seat and the anchor rod are assembled on the mounting plate, and the mounting plate is fixed in the borehole by the anchor rod. The anchor rod provides a stable support for the mounting plate through the friction between the rock or soil in the borehole, thereby enhancing the stability of the entire protective device in the borehole.

[0009] Preferably, the mounting plate includes a horizontal plate and a vertical plate mounted on one end of the horizontal plate, and the lower end of the vertical plate is fixed on the arm guard. The mounting plate and the arm guard are tightly connected by the vertical plate to form a stable supporting structure. This ensures that the protective device can be stably fixed on the arm guard after installation, reducing shaking or displacement caused by external force.

[0010] Preferably, the connecting seat is provided with a connected slot and a channel, and the end of the upper connecting rod passes through the channel and is embedded in the slot. The slot and the channel enable the upper connecting rod to be accurately aligned and inserted into a specified position, simplifying the installation process, improving the installation accuracy, and ensuring the correct installation and accurate measurement of the sedimentation instrument protective device.

[0011] Preferably, the upper connecting rod is provided with a limit device abutting against the outside of the slot. The limit device effectively prevents excessive movement or rotation of the upper connecting rod in the slot; the limit device can be used as a reference point for alignment during installation, helping the operator to more accurately insert the upper connecting rod into the slot, thereby simplifying the installation steps.

[0012] Preferably, the arm guard comprises two detachably connected semicircular arm guards, the semicircular arm guard comprises a plurality of straight pipe sections and a bellows section, and the bellows section is assembled between the plurality of straight pipe sections. The arm guard is composed of a semicircular part, which is convenient for installation and removal; the bellows section has a certain elasticity and buffering capacity, and can provide a certain protection when the sedimentation instrument is impacted.

[0013] Preferably, a plurality of lower connecting rods are provided between the lower support ring and the arm guard. The lower connecting rods tightly connect the lower support ring and the arm guard to form a stable support structure. This ensures that the entire protective device can remain stable when subjected to external forces, reducing measurement errors or safety hazards caused by shaking or displacement.

[0014] Preferably, the plurality of straight pipe sections are hollow structures. By adopting the hollow structure, the material inside the straight pipe section is partially removed, thereby reducing the overall weight. This makes the arm guard lighter and easier to carry and install. At the same time, reducing weight also helps reduce material costs and improves the cost performance of the product.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] A protective device for a sedimentation meter for water conservancy safety monitoring improves the protection of the sedimentation meter. The arm guard and the sheath tube are respectively assembled on the outside of the transmission rod and the sensor, providing all-round physical protection for the sedimentation meter, effectively preventing the external environment such as soil, moisture, etc. from eroding and damaging the sedimentation meter, ensuring the accuracy and reliability of monitoring data, and reducing the cost of use.

[0017] Furthermore, the upper support ring and the lower support ring provide stable support for the entire protective device, ensuring a close fit between the protective device and the sedimentation instrument, and preventing displacement or falling off. The detachability of the connection assembly not only ensures the firmness of the connection, but also facilitates installation, disassembly and subsequent maintenance, enhancing the reliability and service life of the device.

[0018] Other features and advantages of the present invention will be disclosed in detail in the following specific implementations and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The utility model is further described below in conjunction with the accompanying drawings:

[0020] Figure 1 This is a structural schematic diagram of a sedimentation meter protection device for water conservancy safety monitoring of the utility model;

[0021] Figure 2 This is a structural explosion diagram of a protective device for a sedimentation meter for water safety monitoring of the utility model;

[0022] Figure 3 for Figure 2 A detailed enlarged picture of the middle A;

[0023] Figure 4 This is a schematic diagram of the installation of a protective device for a sedimentation meter for water safety monitoring according to the utility model;

[0024] The following are the descriptions of the reference numerals:

[0025] Arm guard 1, sleeve tube 2, support ring 3, connection structure 4, transfer rod 5, drill hole 6, upper support ring 31, lower support ring 32, upper connecting rod 41, connecting assembly 42, mounting plate 421, connecting seat 422, anchor rod 423, horizontal plate 421-1, vertical plate 421-2, limit device 411, slot 422-1, channel 422-2, semicircular arm guard 11, straight pipe section 111, corrugated pipe section 112, lower connecting rod 321. DETAILED DESCRIPTION

[0026] The following is an explanation and description of the technical scheme of the embodiment of the utility model in conjunction with the drawings of the embodiment of the utility model, but the following embodiment is only a preferred embodiment of the utility model, not all. Based on the embodiment in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the utility model.

[0027] In the following description, terms such as "inside", "outside", "up", "down", "left", "right", etc. that indicate directions or positional relationships are only used to facilitate the description of the embodiments and simplify the description, and do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction. Therefore, it should not be understood as a limitation on the present invention.

[0028] like Figures 1 to 4 As shown, a protective device for a sedimentation meter for water conservancy safety monitoring is used to protect the sedimentation meter installed in a borehole 6. The protective device includes an arm guard 1, a sheath tube 2, a support ring 3 and a connection structure 4. In this embodiment, the sedimentation meter includes a transmission rod 5 and a sensor installed on the upper end of the transmission rod 5. The arm guard 1 is installed on the outside of the transmission rod 5, the sheath tube 2 is sleeved on the outside of the sensor, and the support ring 3 includes an upper support ring 31 and a lower support ring 32. The upper support ring 31 is installed on the upper end of the sheath tube 2, and the lower support ring 32 is sleeved on the transmission rod 5. The lower support ring 32 is located at the bottom end of the sheath tube 2. The two support rings provide stable support for the entire protective device, so that it can fit tightly on the sedimentation meter and is not easy to be displaced or fall off. The transmission rod 5 runs through the entire protective device, and the connection structure 4 is installed between the arm guard 1 and the sheath tube 2.

[0029] In this embodiment, the arm guard 1 includes two detachably connected semicircular arm guards 11, the cross-sections of the two semicircular arm guards 11 are both semicircular structures, and the two semicircular arm guards 11 are connected to form a circular tube with upper and lower ends open. Correspondingly, the lower support ring 32 includes two connected semicircular lower support rings, and the two semicircular lower support rings are respectively connected to the two semicircular arm guards 11; the semicircular arm guards 11 and the semicircular lower support rings are easy to install and disassemble, thereby improving construction efficiency.

[0030] Specifically, in this embodiment, the outer diameter of the lower support ring 32 is smaller than the inner diameter of the arm guard 1, and a plurality of lower connecting rods 321 are fixed to the outer side of the lower support ring 32, and one end of the lower connecting rod 321 away from the lower support ring 32 is fixedly connected to the inner side of the arm guard 1. The lower connecting rod 321 improves the stability between the support ring 32 and the arm guard 1.

[0031] The connection structure 4 includes an upper connection rod 41 and a connection assembly 42. The upper connection rod 41 is mounted on the outer side wall of the upper support ring 31. In this embodiment, two upper connection rods 41 are provided, which are respectively mounted on both sides of the upper support ring 31. The upper connection rod 41 and the connection assembly 42 are detachably connected. The connection assembly 42 is mounted on the upper end of the arm guard 1. The connection assembly 42 includes a mounting plate 421, a connection seat 422 and an anchor rod 423. The connection seat 422 and the anchor rod 423 are mounted on the mounting plate 421. Specifically, as shown in FIG. Figure 3As shown, the connecting seat 422 is a raised hemispherical structure, and the connecting seat 422 is assembled on a mounting plate 421 on a side away from the upper support ring 31; the mounting plate 421 is fixed in the drill hole 6 by an anchor rod 423, thereby improving the stability of the entire connecting structure 4.

[0032] The connecting seat 422 has a slot 422-1 and a channel 422-2 connected to each other on one side of the connecting seat 422 facing the upper supporting ring 31. The end of the upper connecting rod 41 passes through the channel 422-2 and is embedded in the slot 422-1. The slot 422-1 is adapted to the upper connecting rod 41. The width of the channel 422-2 is slightly smaller than the diameter of the upper connecting rod 41. The channel 422-2 provided on the connecting seat 422 has a certain elasticity, so that the end of the upper connecting rod 41 is squeezed through the channel 422-2 and enters the slot 422-1.

[0033] Furthermore, the upper connecting rod 41 is provided with a stopper 411 abutting against the outside of the slot 422-1. The stopper 411 can be used as a reference point for alignment during the installation process, helping the operator to more accurately insert the upper connecting rod 41 into the slot 422-1, simplifying the installation steps and improving the installation accuracy.

[0034] In this embodiment, the mounting plate 421 is an L-shaped structure, and the mounting plate 421 includes a horizontal plate 421-1 and a vertical plate 421-2 assembled at one end of the horizontal plate 421-1, and the lower end of the vertical plate 421-2 is fixed to the arm guard 1. The horizontal plate 421-1 is fixed in the borehole 6 by an anchor rod 423; the connecting seat 4228 is fixed to the top surface of the horizontal plate 421-1 of the mounting plate 421.

[0035] In this embodiment, the sheath tube 2 is in a tapered structure with a thick upper portion and a thin lower portion. The outer wall of the upper end of the sheath tube 2 and the inner wall of the upper support ring 31 are connected by threads, so that the sheath tube 2 can be easily installed.

[0036] In this embodiment, preferably, the semicircular arm guard 11 includes a plurality of straight pipe sections 111 and a bellows section 112. The bellows section 112 is assembled between the plurality of straight pipe sections 111. The bellows section 112 has a certain elasticity and buffering capacity, and can provide a certain protection when the sedimentation instrument is impacted; and the bellows section 112 is fixedly connected to the straight pipe section 111, and the straight pipe section 111 is a hollow structure, thereby reducing the weight of the arm guard 1, and reducing the weight also helps to reduce material costs and improve the cost performance of the product.

[0037] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Those skilled in the art should understand that the utility model includes but is not limited to the contents described in the drawings and the above specific implementation. Any modification that does not deviate from the functional and structural principles of the utility model will be included in the scope of the claims.

Claims

1. A protective device for a sedimentation meter for water conservancy safety monitoring, mounted on the outer wall of a sedimentation meter in a borehole (6), the sedimentation meter comprising a transmission rod (5) and a sensor mounted on the upper end of the transmission rod (5); characterized in that: The sedimentation instrument protection device comprises an arm guard (1), a sheath tube (2), a support ring (3) and a connection structure (4); the arm guard (1) is mounted on the outside of a transmission rod (5), the sheath tube (2) is sleeved on the outside of a sensor, the support ring (3) comprises an upper support ring (31) and a lower support ring (32), the upper support ring (31) is mounted on the upper end of the sheath tube (2), the lower support ring (32) is sleeved on the transmission rod (5), and the connection structure (4) is mounted between the arm guard (1) and the sheath tube (2).

2. A sedimentation meter protection device for water conservancy safety monitoring according to claim 1, characterized in that: The sheath tube (2) has a tapered structure that is thick at the top and thin at the bottom, and the outer wall of the upper end of the sheath tube (2) and the inner wall of the upper support ring (31) are connected via threads.

3. A sedimentation meter protection device for water conservancy safety monitoring according to claim 1, characterized in that: The connection structure (4) comprises an upper connection rod (41) and a connection assembly (42); the upper connection rod (41) is mounted on the outer side wall of the upper support ring (31); the connection assembly (42) is mounted on the upper end of the arm guard (1); and the upper connection rod (41) and the connection assembly (42) are detachably connected.

4. A sedimentation meter protection device for water conservancy safety monitoring according to claim 3, characterized in that: The connection assembly (42) comprises a mounting plate (421), a connection seat (422) and an anchor rod (423); the connection seat (422) and the anchor rod (423) are assembled on the mounting plate (421); and the mounting plate (421) is fixed in the drill hole (6) via the anchor rod (423).

5. A sedimentation meter protection device for water conservancy safety monitoring according to claim 4, characterized in that: The mounting plate (421) comprises a horizontal plate (421-1) and a vertical plate (421-2) mounted on one end of the horizontal plate (421-1), and the lower end of the vertical plate (421-2) is fixed on the arm guard (1).

6. A sedimentation meter protection device for water conservancy safety monitoring according to claim 4, characterized in that: The connecting seat (422) is provided with a slot (422-1) and a channel (422-2) that are connected to each other, and the end of the upper connecting rod (41) passes through the channel (422-2) and is embedded in the slot (422-1).

7. A sedimentation meter protection device for water conservancy safety monitoring according to claim 3, characterized in that: The upper connecting rod (41) is provided with a limiting device (411) abutting against the outside of the slot (422-1).

8. The protective device for a sedimentation meter for water safety monitoring according to claim 1, characterized in that: The arm guard (1) comprises two detachably connected semicircular arm guards (11), the semicircular arm guard (11) comprising a plurality of straight pipe sections (111) and a bellows section (112), the bellows section (112) being assembled between the plurality of straight pipe sections (111).

9. A sedimentation meter protection device for water conservancy safety monitoring according to claim 1, characterized in that: A plurality of lower connecting rods (321) are provided between the lower supporting ring (32) and the arm guard (1).

10. A sedimentation meter protection device for water conservancy safety monitoring according to claim 8, characterized in that: The plurality of straight pipe sections (111) are hollow structures.

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