Dam osmotic pressure measuring instrument mounting device

Abstract

The invention discloses a dam osmotic pressure measuring instrument mounting device, and relates to the technical field of dam osmotic pressure measuring instrument mounting, the dam osmotic pressure measuring instrument mounting device comprises a mounting unit which comprises a lifting assembly, an overturning frame, a clamping assembly and a mounting assembly; the mounting assembly comprises a pile casing, a plurality of motors, a first lifting set, a second lifting set, a filling piece and a placing piece. According to the device, through the collaborative design of the eccentric wheel and the buffer pad, flexible clamping of the osmometer is achieved. Rotation of the eccentric wheel can drive the cushion pad to squeeze the outer wall of the osmometer in the radial direction. Meanwhile, a mechanical linkage trigger structure is formed through the vertical coplanar design of a protruding rod on the side wall of the material injection barrel and a handle, when the material injection barrel ascends to the specific height, the protruding rod jacks the handle to enable the eccentric wheel to rotate reversely, the buffer cushion is driven to be released in the radial direction, and the clamping state is automatically relieved. According to the design, manual intervention is not needed, the operation efficiency and the installation consistency are remarkably improved, and the method is particularly suitable for non-standard equipment adaptation under complex working conditions.

Description

Technical Field

[0001] The invention relates to a dam seepage pressure measuring instrument installation and testing technology, in particular to a dam seepage pressure measuring instrument installation device. Background Art

[0002] Dam seepage and pressure are key factors affecting the safety and stability of the dam structure. Especially during the construction phase, precise monitoring of the stress and deformation characteristics of the interface between the dam soil and the structure is crucial. Accurate measurement of pore water pressure and earth pressure is a key indicator for assessing the safety status of a dam. However, traditional piezometer installation methods have significant drawbacks, making them incapable of meeting the high-precision monitoring requirements.

[0003] Currently, on-site installation of piezometers typically uses a wire rope suspension method: the piezometer is first embedded in a pre-drilled hole, the piezometer is then wrapped with geotextile and lowered to the designed elevation using a wire rope. However, this method relies on manual operation and visual judgment, and presents the following issues:

[0004] Large elevation positioning error: The wire rope is easily affected by factors such as friction and shaking of the hole wall during suspension. The deviation between the actual installation elevation and the design value often exceeds ±5cm, resulting in distortion of the pore water pressure measurement results, which in turn affects the accuracy of soil pressure calculation; Poor installation stability: The piezometer is easily offset due to vibration or external force in the suspended state. During long-term use, poor probe contact or measurement data fluctuations may occur; Uneven backfill: The layered backfill of fine sand and bentonite requires manual control of the thickness of each layer (usually 5-10cm), but it is difficult to ensure uniformity through visual operation, and local gaps or material mixing are prone to occur, reducing the density of the filling body (usually less than 90%), resulting in the formation of seepage channels around the piezometer and shortening the service life of the equipment; Low construction efficiency: Traditional methods require repeated adjustment of the wire rope length, manual filling of materials and correction of positions. A single installation takes a long time and relies on skilled workers to operate, making it difficult to adapt to large-scale construction scenarios. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is that the operation of drilling holes in the dam to install a suspended piezometer is rather complicated and difficult to control when backfilling sand and gravel.

[0006] The above technical problem is solved by the following technical solution: The present invention provides a dam seepage pressure measuring instrument installation device, which includes an installation unit, including a lifting assembly, a turning frame arranged on one side of the lifting assembly, a clamping assembly arranged on one side of the turning frame, and an installation assembly arranged inside the clamping assembly;

[0007] The installation assembly includes a protective tube, multiple motors arranged inside the clamping assembly, a first lifting group arranged at the bottom of the motor, a second lifting group arranged on one side of the first lifting group, a filling piece arranged on one side of the first lifting group, and a placement piece arranged on one side of the second lifting group.

[0008] In a preferred embodiment of the dam seepage pressure measuring instrument installation device of the present invention: the lifting assembly includes sleepers, a support frame slidably arranged above the sleepers, a pressing piece arranged on the top of the support frame, and a lifting seat slidably arranged on the support frame.

[0009] In a preferred embodiment of the dam seepage pressure measuring instrument installation device of the present invention: the clamping assembly includes a mounting plate fixedly installed at the bottom of the flip frame, multiple groups of cylinders arranged at the bottom of the mounting plate, a clamping claw arranged on one side of the cylinder, and a resistance plate arranged at the bottom of the cylinder.

[0010] In a preferred embodiment of the dam seepage pressure measuring instrument installation device of the present invention: the filling piece includes a sliding cylinder built into the inner side of the casing, connecting plates arranged on the upper and lower sides of the sliding cylinder, and injection cylinders protruding from both sides of the sliding cylinder.

[0011] In a preferred embodiment of the dam seepage pressure measuring instrument installation device of the present invention: the connecting plate includes a positioning hole provided through the inner axis thereof, and thread holes provided through the two sides of the positioning hole;

[0012] The piezometer is slidably arranged at the axis of the positioning hole.

[0013] In a preferred embodiment of the dam seepage pressure measuring instrument installation device of the present invention: the first lifting group includes two groups of first screw rods arranged in the same plane;

[0014] The second lifting group includes two sets of second screw rods arranged in the same plane;

[0015] The connecting plate is connected to the first screw rod through the screw hole.

[0016] In a preferred embodiment of the dam seepage pressure measuring instrument installation device of the present invention: one group of injection barrels is connected to a first injection pipe; another group of injection barrels is connected to a second injection pipe.

[0017] In a preferred embodiment of the dam seepage pressure measuring instrument installation device of the present invention, the placement member includes a positioning ring connected to the circumference of the second screw rod, an eccentric wheel hinged to both sides of the end of the positioning ring, a buffer pad provided on the inner side of the eccentric wheel, and a handle protruding from the end of the eccentric wheel;

[0018] The eccentric wheel is hinged with a connecting rod.

[0019] In a preferred embodiment of the dam seepage pressure measuring instrument installation device of the present invention, the eccentric movement of the eccentric wheel causes the buffer pad to act on the peripheral side of the piezometer.

[0020] In a preferred embodiment of the dam seepage pressure measuring instrument installation device of the present invention: a protruding rod is provided on the side wall of the injection barrel;

[0021] The space where the protruding rod and the handle are located is vertically coplanar.

[0022] The beneficial effects of the present invention are as follows: through the layered injection strategy (fine sand + bentonite) and the positioning hole guide structure, the device realizes the precise embedment of the piezometer and ensures long-term sealing. The fine sand filling provides a rigid support layer, and the bentonite forms a dynamic sealing layer after absorbing water and swelling, which effectively prevents the migration of the filler and the penetration of moisture. Combined with the screw lifting system driven by the servo motor, the axial displacement accuracy of the connecting plate, and the gap-free interlocking design of the guide groove in the positioning hole, it is ensured that the piezometer measuring probe is accurately embedded in the pre-drilled hole to the specified depth. In addition, the coordinated design of the eccentric wheel and the buffer pad realizes the flexible clamping of the piezometer. The rotational movement of the eccentric wheel can drive the buffer pad to squeeze the outer wall of the piezometer in the radial direction. At the same time, the vertical coplanar design of the convex rod and the handle on the side wall of the injection barrel forms a mechanical linkage trigger structure: when the injection barrel rises to a specific height, the convex rod lifts the handle to cause the eccentric wheel to rotate in the opposite direction, driving the buffer pad to release radially, thereby automatically releasing the clamping state. This design requires no manual intervention, significantly improving operational efficiency and installation consistency. It is particularly suitable for adapting non-standard equipment in complex working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings of the embodiments of the present invention. Obviously, the drawings described below only relate to some embodiments of the present invention and are not intended to limit the present invention. Among them:

[0024] Figure 1 The figure shows the overall installation diagram of the dam seepage pressure measuring instrument installation device of the present invention;

[0025] Figure 2 A three-dimensional cross-sectional view of the internal structure of the mounting assembly of the present invention is shown;

[0026] Figure 3 A schematic cross-sectional view of the internal structure of the mounting assembly of the present invention is shown;

[0027] Figure 4 Shows a schematic structural diagram of the filler of the present invention;

[0028] Figure 5Shows a schematic diagram of the placement piece structure of the present invention;

[0029] Figure 6 The present invention shows Figure 3 Enlarged view of the placement structure at A. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the present invention, the present invention is further described in detail below with reference to specific embodiments and the accompanying drawings.

[0031] The terms used in the present invention are those commonly used in the art in view of the functions of the present invention, but these terms may vary according to the intentions of those skilled in the art, precedents, or new technologies in the art. In addition, specific terms may be selected by the applicant, and in such cases, their detailed meanings will be described in the detailed description of the present invention. Therefore, the terms used in the specification should not be understood as simple names, but rather as the meanings of the terms and the overall description of the present invention.

[0032] Reference Figures 1 to 6 This embodiment provides a dam seepage pressure measuring instrument installation device, including an installation unit 1, including a lifting assembly 11, a turning frame 12 arranged on one side of the lifting assembly 11, a clamping assembly 13 arranged on one side of the turning frame 12, and an installation assembly 14 arranged inside the clamping assembly 13;

[0033] The mounting assembly 14 includes a protective tube 141, multiple motors 142 arranged on the inner side of the clamping assembly 13, a first lifting group 143 arranged at the bottom of the motor 142, a second lifting group 144 arranged on one side of the first lifting group 143, a filling piece 145 arranged on one side of the first lifting group 143, and a placement piece 146 arranged on one side of the second lifting group 144.

[0034] In this embodiment, the lifting assembly 11 can be used to hoist the piezometer M into a pre-drilled hole, enabling pre-embedded operation of the piezometer. A tilting frame 12 is fixedly hingedly mounted to the output end of the lifting assembly 11. It has a tilting function, facilitating the clamping and installation of the piezometer M. A clamping assembly 13 is provided at the end of the tilting frame 12. This clamping assembly 13 is capable of clamping the casing 141 and placing it vertically in the pre-drilled hole, effectively preventing the collapse of the soft soil layer within the dam body.

[0035] The bottom of the clamping assembly 13 is fixedly connected to a mounting assembly 14 , which is mainly used for the installation and backfilling of the piezometer M.

[0036] Specifically, the mounting assembly 14 includes a casing 141, which is held by the clamping assembly 13 and suspended within the borehole. Multiple motors 142 are located at the bottom of the clamping assembly 13. The output ends of the motors 142 are connected to a first lifting assembly 143 and a second lifting assembly 144. The first lifting assembly 143 controls a filler 145 to backfill the borehole with filler material. The second lifting assembly 144 controls a placement assembly 146 to clamp and precisely position the piezometer M.

[0037] In one embodiment provided in the present application, the lifting assembly 11 includes a sleeper 111, a support frame 112 slidably disposed above the sleeper 111, a pressing member 113 disposed on the top of the support frame, and a lifting seat 114 slidably disposed on the support frame 112.

[0038] In this embodiment, the lifting assembly 11 includes: a support frame 112 slidably arranged above the sleeper 111, a downward-facing output end of a downward-facing pressing member 113 fixedly arranged on the top of the support frame 112, and a lifting seat 114 slidably connected between the two arms of the support frame 112. Among them, the sleeper 111 can be used as a sliding base to facilitate the support frame 112 and the installation assembly 14 to slide along it as a whole to a preset drilling position. The downward-pressing member 113 can drive the installation assembly 14 to be lowered into the pre-drilled hole through the force exerted by its output end. The lifting seat 114 is connected to the support frame 112 through a sliding fitting structure, and its downward movement is realized by the drive of the downward-pressing member 113, and synchronously drives the flip frame 12 to move downward.

[0039] Preferably, the pressing member 113 can adopt a variety of linear drive forms, such as hydraulic cylinder drive, screw drive and any other mechanism that can achieve linear motion as shown in the figure, to meet the lifting requirements under different working conditions.

[0040] In one embodiment provided in the present application, the clamping assembly 13 includes a mounting plate 131 fixedly mounted on the bottom of the flip frame 12, multiple groups of cylinders 132 arranged at the bottom of the mounting plate 131, a clamping claw 133 arranged on one side of the cylinder 132, and a resistance plate 134 arranged at the bottom of the cylinder 132.

[0041] In this embodiment, the mounting plate 131 serves as the core connector of the clamping assembly 13. It is fixedly connected to the tilting frame 12 via bolts or welding, providing a mounting base for the cylinder 132 and jaws 133. The cylinder 132, through its telescopic motion, drives the jaws 133 to open and close, thereby clamping and releasing the casing 141. The clamping surfaces of the jaws 133 can be provided with anti-slip grooves or a rubber pad to enhance friction. The abutment plate 134, through contact with the outer wall of the casing 141, provides radial support, preventing the casing from shifting or tilting during the clamping process, thereby ensuring the verticality and stability of the casing 141 within the borehole.

[0042] Preferably, cylinder 132 can be a hydraulic cylinder, pneumatic cylinder, or electric push rod, any other drive device capable of reciprocating linear motion. Its stroke length can be adjusted to suit the diameter range of casing 141. Clamping jaws 133 can be designed with a V-shaped or parallel clamping structure to accommodate casings of varying outer diameters. Abutment plate 134 can be constructed of high-strength alloy steel or wear-resistant composite materials to enhance durability and compressive strength. Motor 142 is a servo motor, facilitating separate control of first and second lifting groups 143, 144.

[0043] Reference Figures 1 to 6 As an optional embodiment, the filling piece 145 includes a sliding cylinder 1451 built into the inner side of the protective cylinder 141, connecting plates 1452 arranged on the upper and lower sides of the sliding cylinder 1451, and injection cylinders 1453 protruding from both sides of the sliding cylinder 1451.

[0044] In one embodiment provided in the present application, the connecting plate 1452 includes a positioning hole 14521 penetrating the inner axis thereof, and thread holes 14522 penetrating the two sides of the positioning hole 14521.

[0045] The piezometer M is slidably arranged at the axis of the positioning hole 14521.

[0046] In one embodiment provided in the present application, the first lifting group 143 includes two groups of first screw rods 1431 arranged in the same plane;

[0047] The second lifting group 144 includes two sets of second screw rods 1441 arranged in the same plane;

[0048] The connecting plate 1452 is connected to the first screw rod 1431 through the screw hole 14522 .

[0049] In one embodiment provided in the present application, one group of injection barrels 1453 is connected to the first injection tube 21 ; the other group of injection barrels 1453 is connected to the second injection tube 22 .

[0050] In this embodiment, the filler 145 comprises a sliding cylinder 1451 embedded within the inner side of the casing 141, connecting plates 1452 fixedly welded to the upper and lower sides of the sliding cylinder 1451, and injection cylinders 1453 protruding from both sides of the sliding cylinder 1451. The sliding cylinder 1451 serves as a transmission channel for the filler material. Its inner wall is provided with a guide groove structure to achieve directional conveying of the filler material. Its axial extension to the bottom of the casing 141 provides a vertical conveying path for the filler material from top to bottom. The connecting plate 1452 provides a sliding guide for the piezometer M via a positioning hole 14521 extending through its end surface. It forms a transmission connection with the screw assembly of the first lifting group 143 through screw holes 14522 on both sides, thereby driving the filling member 145. The injection cylinder 1453 serves as the injection port for the filler material. Its outer wall is provided with an arc-shaped groove structure along the axial direction to effectively restrict the radial diffusion of the filler material, preventing the piezometer M from deviating from the axial position due to material displacement during the injection process, thereby ensuring its measurement accuracy and installation stability.

[0051] Specifically, connecting plate 1452 is connected to the screw assembly of first lifting group 143 through screw holes 14522 on its two sides, realizing the lifting drive function. This drive method can precisely control the axial displacement of connecting plate 1452 along sliding cylinder 1451 by adjusting the screw rotation angle, thereby dynamically adjusting the height position of injection barrel 1453 and realizing the filling operation of fine sand and bentonite at different depths in the pre-drilled hole. The arc-shaped groove design of injection barrel 1453 restricts the axial flow of the filling material, ensuring that the material is evenly distributed along the inner wall of casing 141, avoiding localized accumulation or gaps that affect the embedment effect of piezometer M.

[0052] In addition, the positioning hole 14521 of the connecting plate 1452 passes through its axial position, and the piezometer M can be slid and embedded along the axial direction of the hole to achieve axial positioning and height adjustment of the piezometer M; the wire holes 14522 are symmetrically arranged on both sides of the positioning hole, and through cooperation with the screw assembly of the first lifting group 143, the rotational motion of the screw is converted into the linear motion of the connecting plate 1452, thereby synchronously driving the overall lifting and lowering of the piezometer M and the filling piece 145.

[0053] The injection barrels 1453 are divided into two groups, each implementing a layered injection function through a first injection tube 21 and a second injection tube 22. The first injection tube 21, connected to the filler storage tank, is used to inject fine sand into the injection barrel 1453. Through its axially extending conveying path, the fine sand is filled into the gap between the casing 141 and the borehole wall, forming a stable support layer. The second injection tube 22 is used to inject bentonite. Through an alternating injection strategy, the interior of the casing 141 is layered and filled. The fine sand layer provides rigid support, while the bentonite layer forms a sealing layer through its water absorption and expansion properties, jointly improving the density and impermeability of the filler. This layered injection method effectively avoids local voids caused by uneven filling material mixing by controlling the injection sequence and ratio, ensuring the data reliability and device durability of the piezometer M during long-term monitoring.

[0054] In summary, this device achieves precise embedding and long-term sealing of the piezometer M through a layered injection strategy (fine sand + bentonite) and the guiding structure of positioning hole 14521. The fine sand filling provides a rigid support layer, while the bentonite absorbs water and expands to form a dynamic sealing layer, effectively preventing filler migration and water infiltration. The servo motor-driven screw lifting system, the axial displacement accuracy of connecting plate 1452, and the gap-free fit of the guide groove within positioning hole 14521 ensure that the piezometer M measuring probe is precisely embedded in the pre-drilled hole to the specified depth.

[0055] Reference Figures 1 to 6 As an optional embodiment, the placement member 146 includes a positioning ring 1461 connected to the circumference of the second screw rod 1441, an eccentric wheel 1462 hinged to both sides of the end of the positioning ring 1461, a buffer pad 1463 provided on the inner side of the eccentric wheel 1462, and a handle 1464 protruding from the end of the eccentric wheel 1462;

[0056] The eccentric wheel 1462 is hinged with a connecting rod 23.

[0057] In one embodiment provided in the present application, the eccentric movement of the eccentric wheel 1462 causes the buffer pad 1463 to act on the peripheral side of the piezometer M.

[0058] In one embodiment provided in the present application, a protruding rod 14531 is provided on the side wall of the injection barrel 1453;

[0059] The space where the protruding rod 14531 and the handle 1464 are located is vertically coplanar.

[0060] In this embodiment, the placement member 146 includes a positioning ring 1461 threadedly connected to the circumferential side of the second screw rod 1441, an eccentric wheel 1462 horizontally radially hinged on both sides of the end of the positioning ring 1461, a buffer pad 1463 fixedly clamped on the inner side of the eccentric wheel 1462, and a handle 1464 protruding from the end of the eccentric wheel 1462.

[0061] Two sets of eccentric wheels 1462, articulated by connecting rods 23, are non-contactly clamped to either side of the piezometer M. They achieve overall displacement control with the synchronous lifting and lowering motion of the two sets of second screws 1441. The eccentric wheels 1462 rotate around their eccentric axes, driving the buffer pads 1463 in radial compression along the axis of the piezometer M. This applies uniform pressure to the piezometer M, achieving flexible clamping and positioning. This structure, through the combination of mechanical linkage and elastic buffering, ensures stable installation of the piezometer M while avoiding potential damage to the equipment caused by rigid clamping.

[0062] Specifically, the positioning ring 1461 is fixed to the circumferential side of the second screw 1441 by a threaded connection, and serves as the installation reference and rotation fulcrum of the eccentric wheel 1462, ensuring the stability and repeatability of the eccentric wheel's motion trajectory. The eccentric wheel 1462 is symmetrically hinged to the inner side of the positioning ring 1461, and its eccentric axis design allows it to drive the buffer pad 1463 to move radially outward or inward during rotation. When the positioning ring 1461 is driven to rotate by pressing down the handle 1464, the eccentric wheel 1462 realizes eccentric rotation through the hinge structure of the positioning ring 1461, thereby controlling the contact state between the buffer pad 1463 and the osmometer M. This design can achieve dynamic adjustment of the clamping force of the buffer pad 1463 on the osmometer M by adjusting the rotation angle of the eccentric wheel, and adapt to the installation requirements of osmometers of different diameters or materials.

[0063] Preferably, the cushion pad 1463 is made of highly elastic rubber or polyurethane, with its inner side conforming to the outer wall of the piezometer M. This material has excellent resilience and wear resistance. Driven by the eccentric wheel, it provides adjustable cushioning force, preventing surface damage or measurement accuracy deviation caused by external impact during installation of the piezometer M. Furthermore, the surface of the cushion pad 1463 can be provided with anti-slip grooves or embedded with a particle reinforcement layer to increase the coefficient of friction between it and the piezometer M, further enhancing clamping stability.

[0064] Preferably, the handle 1464 is protruded from the end of the eccentric wheel 1462, and the angle of the eccentric wheel 1462 can be manually adjusted by manual rotation operation, thereby controlling the contact pressure and coverage range of the buffer pad 1463 and the piezometer M.

[0065] Furthermore, a protruding rod 14531 is welded to the side wall of the injection barrel 1453, which is vertically coplanar with the space in which the handle 1464 is located, forming a release positioning structure. When the injection barrel 1453 performs a recovery motion, the protruding rod 14531 can serve as a trigger element, realizing the automatic release of the clamping function after contacting the handle 1464 in a vertical coplanar relationship: when the protruding rod 14531 rises to a specific height along with the injection barrel 1453, its end will contact and lift the handle 1464, causing the handle 1464 to flip along the rotation axis of the eccentric wheel 1462. This action converts the vertical lifting force into the rotational torque of the eccentric wheel 1462 through the principle of leverage, driving the buffer pad 1463 to move radially outward, thereby releasing the clamping effect on the piezometer M. This design not only realizes the automatic switching between clamping and releasing, but also ensures that the rotation angle of the placement member 146 is synchronized with the filling position of the injection barrel 1453 through the coordinated positioning relationship between the protruding rod 14531 and the handle 1464, thereby avoiding the installation position of the piezometer M from deviating from the preset axis due to operational deviation.

[0066] During use, the operator first adjusts the tilt frame 12 to a horizontal position and manually applies pressure through the handle 1464 on the second screw rod 1441 at the bottom. This operation drives the eccentric wheel 1462 to rotate through the lever principle, which drives the buffer pad 1463 to radially press against the circumference of the piezometer M, thereby achieving a flexible clamping fixation of the piezometer M.

[0067] After the clamping is completed, the flip frame 12 is flipped vertically to a position aligned with the axis of the casing 141 through the hinge structure. At this time, the axis of the sliding cylinder 1451 on the first screw rod 1431 must be coaxial with the inner wall of the casing 141 to ensure the accuracy of the subsequent filling operation. The operator starts the servo motor 142 at the bottom of the clamping assembly 13 to drive the first screw rod 1431 to rotate synchronously. Through the screw-nut transmission principle, the connecting plate 1452 moves smoothly down along the axial direction of the sliding cylinder 1451 to the bottom position, providing initial positioning for the injection operation of the filling piece 145.

[0068] The filling operation is carried out in two stages:

[0069] Fine sand filling stage: The filling material is injected into the one side injection barrel 1453 through the first injection pipe 21 filled with fine sand. During the fine sand injection process, the first screw 1431 drives the connecting plate 1452 to slowly rise through the servo motor 142, so that the filling material is evenly distributed along the inner wall of the casing 141.

[0070] Bentonite filling stage: When the injection barrel 1453 rises to a preset height, the second injection pipe 22 is switched to be filled with bentonite, and the second filling is completed through the other injection barrel 1453. The water absorption and expansion properties of bentonite can form a sealing layer, preventing the migration of particles in the fine sand layer after long-term use.

[0071] As the injection barrel 1453 continues to rise, the protruding rod 14531 on its side wall gradually approaches the handle 1464. When the protruding rod 14531 contacts the handle 1464, the mechanical linkage principle triggers the reverse rotation of the eccentric wheel 1462. Specifically, the lifting action of the protruding rod 14531 flips the handle 1464 along the axis of the eccentric wheel, driving the buffer pad 1463 to move radially outward, thereby releasing the clamping state of the piezometer M. This automatic release mechanism achieves precise positioning through the vertical coplanar design of the protruding rod 14531 and the handle 1464, ensuring that the timing of clamp release is completely synchronized with the injection stroke.

[0072] In the final stage, the piezometer M is positioned by sliding the axial center through the positioning hole 14521 at the axis of the connecting plate 1452. The inner wall of the positioning hole 14521 is provided with a guide groove structure, which cooperates with the outer cylindrical surface of the piezometer M to achieve seamless sliding engagement. As the filler material in the injection barrel 1453 gradually solidifies and hardens, the piezometer M is completely encapsulated in the filler material, and its measuring probe is precisely embedded in the specified depth of the pre-drilled hole. The entire installation process, through the synergistic effect of mechanical linkage and servo control, achieves the precise embedment and automated filling of the piezometer M, significantly improving the construction efficiency and long-term stability of the dam seepage pressure monitoring system.

[0073] In summary, this device achieves flexible clamping of the piezometer M through the coordinated design of the eccentric wheel 1462 and the buffer pad 1463. The rotational movement of the eccentric wheel 1462 can drive the buffer pad 1463 to radially squeeze the outer wall of the piezometer M. At the same time, the vertical coplanar design of the protruding rod 14531 and the handle 1464 on the side wall of the injection barrel 1453 forms a mechanical linkage trigger structure: when the injection barrel 1453 rises to a specific height, the protruding rod 14531 lifts the handle to cause the eccentric wheel 1462 to rotate in the opposite direction, driving the buffer pad 1463 to release radially, thereby automatically releasing the clamping state. This design does not require manual intervention, significantly improves operational efficiency and installation consistency, and is particularly suitable for the adaptation needs of non-standard equipment under complex working conditions.

[0074] Finally, it should be pointed out that the methods and devices described in detail above are merely embodiments, and those skilled in the art can modify these embodiments in different ways without departing from the scope of the present invention.

Claims

1. A dam seepage pressure measuring instrument installation device, characterized by: include, The mounting unit (1) comprises a lifting assembly (11), a turning frame (12) arranged on one side of the lifting assembly (11), a clamping assembly (13) arranged on one side of the turning frame (12), and a mounting assembly (14) arranged inside the clamping assembly (13); The mounting assembly (14) includes a protective tube (141), a plurality of motors (142) arranged inside the clamping assembly (13), a first lifting group (143) arranged at the bottom of the motor (142), a second lifting group (144) arranged on one side of the first lifting group (143), a filling piece (145) arranged on one side of the first lifting group (143), and a placement piece (146) arranged on one side of the second lifting group (144).

2. The dam seepage pressure measuring instrument installation device according to claim 1, characterized in that: The lifting assembly (11) includes a sleeper (111), a support frame (112) slidably arranged above the sleeper (111), a pressing member (113) arranged on the top of the support frame, and a lifting seat (114) slidably arranged on the support frame (112).

3. The dam seepage pressure measuring instrument installation device according to claim 2, characterized in that: The clamping assembly (13) comprises a mounting plate (131) fixedly mounted on the bottom of the turning frame (12), a plurality of cylinders (132) arranged at the bottom of the mounting plate (131), a clamping claw (133) arranged on one side of the cylinder (132), and a supporting plate (134) arranged at the bottom of the cylinder (132).

4. The dam seepage pressure measuring instrument installation device according to claim 3, characterized in that: The filling member (145) includes a sliding cylinder (1451) built into the inner side of the protective cylinder (141), connecting plates (1452) arranged on the upper and lower sides of the sliding cylinder (1451), and injection cylinders (1453) protruding from both sides of the sliding cylinder (1451).

5. The dam seepage pressure measuring instrument installation device according to claim 4, characterized in that: The connecting plate (1452) includes a positioning hole (14521) penetrating the inner axis thereof, and thread holes (14522) penetrating the two sides of the positioning hole (14521); The piezometer (M) is slidably arranged at the axis of the positioning hole (14521).

6. The dam seepage pressure measuring instrument installation device according to claim 5, characterized in that: The first lifting group (143) includes two groups of first screw rods (1431) arranged in the same plane; The second lifting group (144) includes two groups of second screw rods (1441) arranged in the same plane; The connecting plate (1452) is connected to the first screw rod (1431) through the screw hole (14522).

7. The dam seepage pressure measuring instrument installation device according to claim 6, characterized in that: One group of injection barrels (1453) is connected to a first injection tube (21); the other group of injection barrels (1453) is connected to a second injection tube (22).

8. The dam seepage pressure measuring instrument installation device according to claim 7, characterized in that: The placement member (146) includes a positioning ring (1461) connected to the circumference of the second screw rod (1441), an eccentric wheel (1462) hinged to both sides of the end of the positioning ring (1461), a buffer pad (1463) arranged on the inner side of the eccentric wheel (1462), and a handle (1464) protruding from the end of the eccentric wheel (1462); The eccentric wheel (1462) is hinged with a connecting rod (23).

9. The dam seepage pressure measuring instrument installation device according to claim 8, characterized in that: The eccentric movement of the eccentric wheel (1462) causes the buffer pad (1463) to act on the peripheral side of the piezometer (M).

10. The dam seepage pressure measuring instrument installation device according to claim 9, characterized in that: A protruding rod (14531) is provided on the side wall of the injection cylinder (1453); The space where the protruding rod (14531) and the handle (1464) are located is vertically coplanar.

Images