Geotechnical engineering investigation water level measuring device

Abstract

The utility model relates to the technical field of geotechnical engineering, in particular to a geotechnical engineering investigation water level measuring device which comprises a horizontally-arranged supporting frame, the supporting frame is of a U-shaped structure, supporting legs are arranged on the end face of a U-shaped opening, the upper ends of the supporting legs and the upper end of the supporting frame are fixed through screws, and the two supporting legs are distributed in a splayed shape. Shaft sleeves are arranged on the two side walls of the supporting frame, and the surfaces of the shaft sleeves penetrate through the interiors of the side walls of the supporting frame. Through forward and reverse rotation of the motor, linkage of the winding reel can be driven so that the winding reel can take up or pay off a steel wire rope, the steel wire rope is guided by the two rope wheels and limited by the limiting block, the pay-off area of the steel wire rope is always located at the position of a center shaft of the overall structure, and the overall structure is erected at an end opening of an excavated hole. Therefore, the area below the steel wire rope belongs to the center of the cave, and the water level tester can be stably released downwards at the center of the cave in cooperation with auxiliary limiting of the guide sleeve.

Description

Technical Field

[0001] The utility model relates to the technical field of geotechnical engineering, in particular to a geotechnical engineering survey water level measuring device. Background Art

[0002] Geotechnical engineering investigation is the basis of design and construction. If the investigation is not in place, adverse engineering geological problems will be exposed, and even if the design and construction of the superstructure are of high quality, it will inevitably be damaged.

[0003] Engineering activities of different types and scales will have different degrees of impact on the geological environment; conversely, different geological conditions will have different effects on engineering construction. The purpose of geotechnical engineering survey is mainly to identify engineering geological conditions, analyze existing geological problems, and make engineering geological evaluations of construction areas.

[0004] In the actual exploration of geotechnical engineering, hydrogeological exploration is the most important part. Groundwater is the main characteristic of geotechnical engineering. At the same time, it is also the central link in the construction of geotechnical engineering.

[0005] The rise of groundwater level will cause the pH balance of the soil, so that the soluble salts in the soil will corrode the cement to a certain extent. Secondly, the rise of groundwater will erode the soil, resulting in landslides, which seriously threatens people’s life and property safety.

[0006] The drop in groundwater levels can cause ground collapse and subsidence, greatly affecting the safety of buildings constructed later. The drop in groundwater levels also causes particles and silt in the soil to be washed away by water, destroying the soil structure.

[0007] At present, geotechnical engineering is under construction, especially after the rock layer is excavated, groundwater appears under the soil layer. The conventional method is to manually lower the water level meter into the excavated cave with a rope. However, the manual release of the rope may easily cause the hanging position to be close to the cave wall. If the cave is deep, the instrument will constantly collide with the cave wall and cause damage. Utility Model Content

[0008] The utility model aims to solve the above-mentioned shortcomings in the prior art and proposes a water level measuring device for geotechnical engineering investigation.

[0009] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0010] A water level measuring device for geotechnical engineering investigation is designed, comprising a horizontally arranged support frame, the support frame is a U-shaped structure, and the end surface of the U-shaped mouth is provided with a support leg, the upper end of the support leg is fixed to the upper end of the support frame by screws, and the two support legs are arranged in an eight-shaped distribution, shaft sleeves are arranged on the side walls of both sides of the support frame, the surface of the shaft sleeve passes through the inside of the side wall of the support frame, and the connecting position of the shaft sleeve and the support frame is fixed by welding, shaft rods are arranged inside the two shaft sleeves, and the two ends of the shaft rod respectively pass through the two shaft sleeves to extend outwards, the surface of the shaft rod is provided with a winding drum, and the inner wall surface of the winding drum is connected to the shaft rod. The outer wall surface of the support frame is fixedly connected by screws, a steel wire rope is wound on the outer wall of the winding drum, and one end of the steel wire rope is welded and fixed to the outer wall surface of the winding drum, the outer wall surfaces of both sides of the support frame are fixedly equipped with a motor through a bracket, a rotating shaft for driving is provided inside the motor, and the end of the rotating shaft passes through the motor to extend outward and is fixed to the shaft rod through a coupling, a cross bar is provided between the two legs, and the end surfaces of both ends of the cross bar are fixed to the legs by welding, a guide sleeve is provided at the middle position of the cross bar, the surface of the guide sleeve passes through the interior of the cross bar, and the inner wall surface of the guide sleeve is slidably penetrated by the surface of the steel wire rope.

[0011] In detail, the supporting legs are respectively a left leg and a right leg, and the inner wall of the left leg is respectively provided with a first rope pulley and a second rope pulley for guiding, and both ends of the first rope pulley and the second rope pulley are installed with a rotatable shaft bracket, and the other end of the shaft bracket is fixed to the inner wall surface of the left leg by screws, and the steel wire rope passes through the surface of the first rope pulley and the surface of the second rope pulley in turn, and the steel wire rope is in sliding contact with the first rope pulley and the second rope pulley respectively.

[0012] In detail, a limiting block is fixed on the inner wall surface of the right leg of the supporting leg through a bracket, and the limiting block is provided with an inner arc surface, and the inner arc surface is slidably fitted with the surface of the steel wire rope.

[0013] In detail, a connecting seat is arranged at the other end of the steel wire rope, the upper end surface of the connecting seat is welded and fixed to the end surface of the steel wire rope, and the connecting seat is a cylindrical structure.

[0014] In detail, a shell is disposed inside the connection seat, a water level meter is disposed inside the shell, the connection position of the water level meter and the shell is fixed by bonding with a sealant, and the end of the water level meter passes through the shell and extends outward.

[0015] In detail, a rechargeable battery is fixedly installed inside the shell, and the terminals of the rechargeable battery are electrically connected to the terminals of the water level meter through wires. The charging port of the rechargeable battery penetrates the inner wall of the shell, and the penetration position of the two is set by sealing adhesive filling.

[0016] Specifically, an internal thread surface is arranged on the inner wall surface of the connecting seat, and an external thread surface is arranged on the outer wall surface of the outer shell, and the external thread surface and the internal thread surface are threadably connected to each other.

[0017] The design scheme proposed by the utility model has the following beneficial effects during application:

[0018] 1. The forward and reverse rotation of the motor can drive the linkage of the winding drum, so that it can reel in or release the wire rope. The wire rope is guided by two rope wheels and limited by the limit block, so that the wire rope release area is always located at the central axis position of the overall structure, and the overall structure is erected at the port of the excavated hole, so that the area below the wire rope belongs to the center of the hole, and combined with the auxiliary limit of the guide sleeve, the water level meter can be stably released downward at the center of the hole.

[0019] 2. The water level meter can be stably powered by the rechargeable battery in the shell. The shell and the connector are threaded, which makes it easy to disassemble and recycle the water level meter after the measurement is completed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a schematic diagram of the overall structure of the utility model in an oblique top view;

[0022] Figure 3 It is an enlarged schematic diagram of point a of the utility model;

[0023] Figure 4 It is an enlarged schematic diagram of point b of the utility model;

[0024] Figure 5 It is a schematic diagram of the internal structure of the connecting seat and the shell of the utility model.

[0025] In the figure: 10, support frame; 11, support leg; 12, bushing; 13, shaft; 14, winding drum; 15, wire rope; 16, motor; 17, rotating shaft; 18, cross bar; 19, guide sleeve; 20, first rope pulley; 21, second rope pulley; 22, limit block; 30, connecting seat; 31, outer shell; 32, water level measuring instrument; 33, rechargeable battery; 34, internal thread surface; 35, external thread surface. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0027] Reference Figure 1-Figure 5 A water level measuring device for geotechnical engineering investigation comprises a horizontally arranged support frame 10, the support frame 10 is a U-shaped structure, and a support leg 11 is arranged on the end surface of the U-shaped mouth, the upper end of the support leg 11 is fixed to the upper end of the support frame 10 by screws, and the two support legs 11 are arranged in an eight-shaped distribution, and shaft sleeves 12 are arranged on the side walls of both sides of the support frame 10, the surface of the shaft sleeve 12 passes through the inside of the side wall of the support frame 10, and the connection position of the shaft sleeve 12 and the support frame 10 is fixed by welding, and the inside of the two shaft sleeves 12 is provided with a shaft rod 13, and the two ends of the shaft rod 13 respectively pass through the two shaft sleeves 12 and extend outward, and the surface of the shaft rod 13 is provided with a winding drum 14, and the inner wall surface of the winding drum 14 is connected to the outer wall surface of the shaft rod 13. The wall is fixedly connected by screws, a steel wire rope 15 is wound on the outer wall of the winding drum 14, and one end of the steel wire rope 15 is welded and fixed to the outer wall of the winding drum 14, and the outer wall surfaces on both sides of the support frame 10 are fixedly equipped with motors 16 through brackets, and a rotating shaft 17 for driving is provided inside the motor 16, and the end of the rotating shaft 17 extends outward through the motor 16 and is fixed to the shaft 13 through a coupling, a cross bar 18 is provided between the two legs 11, and the end surfaces of the cross bar 18 at both ends are fixed to the legs 11 by welding, and a guide sleeve 19 is provided in the middle position of the cross bar 18, and the surface of the guide sleeve 19 passes through the interior of the cross bar 18, and the inner wall surface of the guide sleeve 19 is slidably penetrated by the surface of the steel wire rope 15.

[0028] It should be further explained that the left and right legs of the support legs 11 respectively, and the inner wall of the left leg are respectively provided with a first rope pulley 20 and a second rope pulley 21 for guiding, and both ends of the first rope pulley 20 and the second rope pulley 21 are installed with a rotatable shaft bracket, and the other end of the shaft bracket is fixed to the inner wall surface of the left leg by screws, and the wire rope 15 passes through the surface of the first rope pulley 20 and the surface of the second rope pulley 21 in sequence, and the wire rope 15 is in sliding contact with the first rope pulley 20 and the second rope pulley 21 respectively, and the motor 16 is a stepper model, and is powered by being plugged into the indoor 220V power socket through a wire plug, and the motor 16 is externally connected to a forward and reverse switch through a wire, and the model of the forward and reverse switch is HY2-8.

[0029] It should be further explained that the inner wall surface of the right leg of the support leg 11 is fixed with a limit block 22 through a bracket. The limit block 22 is provided with an inner arc surface, and the inner arc surface is slidably fitted with the surface of the wire rope 15, which can play a limiting effect on the wire rope 15 when it is guided vertically downward.

[0030] It should be further explained that a connecting seat 30 is provided at the other end of the wire rope 15, and the upper end surface of the connecting seat 30 is welded and fixed to the end surface of the wire rope 15. The connecting seat 30 is a cylindrical structure, and the connecting seat 30 is made of solid stainless steel material to ensure sufficient weight so that it can fall stably when the wire rope 15 is released.

[0031] It should be further explained that a shell 31 is provided inside the connecting seat 30, and a water level measuring instrument 32 is provided inside the shell 31. The connecting position of the water level measuring instrument 32 and the shell 31 is fixed by bonding with a sealant, and the end of the water level measuring instrument 32 extends outward through the shell 31, so that the measuring end of the water level measuring instrument 32 is always vertically downward.

[0032] It should be further explained that a rechargeable battery 33 is fixedly installed inside the outer shell 31, and the terminals of the rechargeable battery 33 are electrically connected to the terminals of the water level measuring instrument 32 through wires. The charging port of the rechargeable battery 33 passes through the inner wall of the outer shell 31, and the penetration position of the two is filled with sealing adhesive, which can ensure that the water level measuring instrument 32 can complete water level detection without the need for transmission lines.

[0033] It should be further explained that an internal threaded surface 34 is provided on the inner wall surface of the connecting seat 30, and an external threaded surface 35 is provided on the outer wall surface of the outer shell 31. The external threaded surface 35 and the internal threaded surface 34 are threadedly connected with each other, which can ensure the stable installation of the water level measuring instrument 32 and the connecting seat 30, and at the same time, can provide waterproof protection for the charging port position of the rechargeable battery 33.

[0034] Working method: When it is necessary to detect the groundwater level in a cave excavated in geotechnical engineering, first move the entire structure to the cave entrance, and erect it at the cave entrance through two legs 11, insert the shell 31 with the water level meter 32 into the connecting seat 30, and the water level meter 32 and the connecting seat 30 can be fixed by threading the internal thread surface 34 and the external thread surface 35 together.

[0035] Then, the power supply of the motor 16 is turned on, and the motor 16 is started through the forward and reverse switches, so that the motor 16 drives the shaft 13 to rotate forward and reverse through the rotating shaft 17, so that the winding drum 14 can reel in or release the wire rope 15. When releasing the wire, the wire rope 15 passes through the first rope wheel 20 and the second rope wheel 21 in sequence through the gravity falling effect of the connecting seat 30 and then cooperates with the limiting effect of the limit block 22, so that the falling area of ​​the wire rope 15 is always in the middle position of the overall device, avoiding frequent contact with the wall of the cave and reducing the burden of manual labor. The guide sleeve 19 can play an auxiliary guiding and limiting effect.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A water level measuring device for geotechnical engineering investigation, comprising a horizontally arranged support frame (10), characterized in that: The support frame (10) is a U-shaped structure, and the end surface of the U-shaped opening is provided with a support leg (11), the upper end of the support leg (11) is fixed to the upper end of the support frame (10) by screws, and the two support legs (11) are arranged in an eight-shaped distribution, and shaft sleeves (12) are provided on the side walls of both sides of the support frame (10), the surface of the shaft sleeve (12) passes through the inside of the side wall of the support frame (10), and the connection position between the shaft sleeve (12) and the support frame (10) is fixed by welding, and the inside of the two shaft sleeves (12) is provided with a shaft rod (13), and the two ends of the shaft rod (13) respectively pass through the two shaft sleeves (12) and extend outwards, and the surface of the shaft rod (13) is provided with a winding drum (14), and the inner wall surface of the winding drum (14) is fixedly connected to the outer wall surface of the shaft rod (13) by screws, and the winding drum A steel wire rope (15) is wound on the outer wall of the support frame (14), and one end of the steel wire rope (15) is welded and fixed to the outer wall of the winding drum (14). The outer wall surfaces on both sides of the support frame (10) are fixedly equipped with motors (16) through brackets. A rotating shaft (17) for driving is arranged inside the motor (16), and the end of the rotating shaft (17) passes through the motor (16) to extend outward and is fixed to the shaft rod (13) through a coupling. A cross bar (18) is arranged between the two legs (11), and the end surfaces of the cross bar (18) are fixed to the legs (11) by welding. A guide sleeve (19) is arranged in the middle of the cross bar (18), and the surface of the guide sleeve (19) passes through the interior of the cross bar (18). The inner wall surface of the guide sleeve (19) and the surface of the steel wire rope (15) are slidably arranged to pass through.

2. A geotechnical engineering survey water level measuring device according to claim 1, characterized in that: The supporting legs (11) are respectively provided with a first rope wheel (20) and a second rope wheel (21) for guiding on the inner wall of the left leg, and rotatable shaft brackets are installed at both ends of the first rope wheel (20) and the second rope wheel (21), and the other end of the shaft bracket is fixed to the inner wall surface of the left leg by screws, and the steel wire rope (15) passes through the surface of the first rope wheel (20) and the surface of the second rope wheel (21) in sequence, and the steel wire rope (15) is in sliding contact with the first rope wheel (20) and the second rope wheel (21) respectively.

3. A geotechnical engineering survey water level measuring device according to claim 2, characterized in that: A limit block (22) is fixed to the inner wall surface of the right leg of the supporting leg (11) through a bracket, and the limit block (22) is provided with an inner arc surface, and the inner arc surface is slidably fitted with the surface of the steel wire rope (15).

4. The water level measuring device for geotechnical engineering survey according to claim 1, characterized in that: The other end of the steel wire rope (15) is provided with a connecting seat (30), the upper end surface of the connecting seat (30) is welded and fixed to the end surface of the steel wire rope (15), and the connecting seat (30) is a cylindrical structure.

5. A geotechnical engineering survey water level measuring device according to claim 4, characterized in that: The connection seat (30) is provided with a shell (31) inside, and a water level measuring instrument (32) is provided inside the shell (31). The connection position of the water level measuring instrument (32) and the shell (31) is fixed by bonding with a sealant, and the end of the water level measuring instrument (32) penetrates the shell (31) and extends outward.

6. A geotechnical engineering survey water level measuring device according to claim 5, characterized in that: A rechargeable battery (33) is fixedly mounted inside the housing (31), and the terminal of the rechargeable battery (33) is electrically connected to the terminal of the water level measuring instrument (32) via a wire. The charging port of the rechargeable battery (33) penetrates the inner wall of the housing (31), and the penetration position of the two is filled and set by sealing adhesive.

7. A geotechnical engineering survey water level measuring device according to claim 6, characterized in that: An internal thread surface (34) is provided on the inner wall surface of the connection seat (30), and an external thread surface (35) is provided on the outer wall surface of the outer shell (31), and the external thread surface (35) and the internal thread surface (34) are threadably connected to each other.

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