Soil water seepage detection device for geotechnical engineering

Abstract

The invention relates to the technical field of soil water seepage detection, in particular to a soil water seepage detection device for geotechnical engineering, and provides the soil water seepage detection device for geotechnical engineering aiming at solving the problem that an existing soil water seepage detection device cannot adapt to slope section detection and the like. A transverse frame capable of moving up and down is arranged at the upper end of the base, a ball pin capable of rotating is arranged in the middle of the transverse frame, a testing cover is arranged at the lower end of the ball pin, a measuring cylinder is arranged at the upper end of the ball pin, clamping pads matched with the ball pin are arranged on the inner walls of the two sides of the transverse frame respectively, reinforcing piles are arranged at the four end corners of the base respectively, and a plurality of expanding and supporting plates are arranged on the inner walls of the reinforcing piles respectively. When the transverse frame moves downwards, a structure that the clamping pads move towards the outer side and then move towards the inner side can be formed, and when the transverse frame moves downwards, a structure that the multiple expanding and supporting plates synchronously move towards the outer side can also be formed. The slope surface can be always kept vertical during testing, the detection accuracy is improved, the bottom is firmly fixed, and the slope surface is prevented from moving during working.

Description

Technical Field

[0001] The invention relates to the technical field of soil water seepage detection, and in particular to a soil water seepage detection device used in geotechnical engineering. Background Art

[0002] Soil seepage detection is an important part of geotechnical engineering, especially in groundwater control, soil stability analysis, building foundation treatment, and environmental protection. Soil seepage performance directly affects factors such as groundwater flow, foundation settlement, and soil pollution diffusion. Therefore, accurate seepage detection is crucial to the safety, stability, and sustainability of geotechnical engineering.

[0003] The current soil seepage detection device still has certain defects when used. For example, the publication number is: CN117451593A, and the name is: A soil seepage detection device for geotechnical engineering. Although it solves the problem of being able to maintain a certain water pressure for detection to improve accuracy, the device will cause the entire device to be in a tilted state when used on a slope surface, affecting the measurement accuracy, and the bottom is not firmly fixed. When the electric push rod is working, the bottom plate and the bottom frame are easy to rise or move. Therefore, a soil seepage detection device for geotechnical engineering is designed to solve the above-mentioned problems. Summary of the invention

[0004] In view of the fact that existing soil seepage detection devices are not suitable for slope section detection, the present invention provides a soil seepage detection device for geotechnical engineering. The device can always remain vertical when testing the slope surface, thereby improving the detection accuracy, and the bottom is firmly fixed to prevent movement during operation, thereby effectively solving the problems mentioned in the above-mentioned background technology.

[0005] In order to solve the above problems, the technical solution adopted by the present invention is: A soil water seepage detection device for geotechnical engineering comprises a base, a rectangular frame which can move left and right is arranged inside the base, a first driving plate and a second driving plate are arranged at the upper end of the base, semicircular pressure rods are respectively installed on the first driving plate and the second driving plate, and a mold barrel is also arranged at the upper end of the base, when the rectangular frame moves, a structure in which the first driving plate and the second driving plate swing forward can be formed, when the first driving plate and the second driving plate swing forward, a structure in which the semicircular pressure rod squeezes the steel plate so that the steel plate deforms along the outer surface of the mold barrel; first wedge blocks are respectively arranged on both sides of the lower end of the mold barrel, when the first driving plate and the second driving plate swing backward, a structure in which the two first wedge blocks move upward can be formed.

[0006] The lower end of the ball pin is provided with a leakage nozzle, the upper end of the ball pin is provided with a measuring tube, the outer surface of the leakage nozzle is fixedly connected with a four-claw frame, and the test cover is fixedly connected to the lower end surface of the four-claw frame.

[0007] The left and right sides of the lower end surface of the cross frame are respectively fixed with multi-stage telescopic rods, and the bottom ends of the multi-stage telescopic rods are respectively fixed to the base; the outer end surfaces of the two clamping pads are respectively fixed with square guide rods slidably connected to the cross frame, and the inner walls of the square guide rods are respectively fixed with first sliding pins; the left and right sides of the upper end surface of the base are respectively fixed with two first guide plates, and the first guide plates are respectively provided with first guide grooves matching the first sliding pins.

[0008] The inner walls of the reinforcement piles are respectively provided with rotatable threaded rods, threaded sleeves are respectively threadedly connected on the outer surfaces of the threaded rods, four evenly distributed scissor-type telescopic frames are respectively hinged on the outer surfaces of the threaded sleeves, the lower ends of the outer surfaces of the threaded rods are respectively rotatably connected with circular ring sleeves fixed to the reinforcement piles, the inner sides of the lower ends of the scissor-type telescopic frames are respectively hinged on the corresponding circular ring sleeves, the expansion plates are respectively hinged on the outer sides of the lower ends of the corresponding scissor-type telescopic frames, and the outer sides of the upper ends of the scissor-type telescopic frames are respectively hinged with sliding seats slidably connected to the expansion plates.

[0009] The two sides of the sliding seat are respectively fixed with driving plates, the inner walls of the two sides of the expansion support plate are respectively slidably connected with expansion nails, the expansion nails are respectively fixed with short pins, and the driving plates are respectively provided with oblique key grooves matched with the short pins.

[0010] The upper ends of the outer surfaces of the threaded rods are respectively fixedly connected with spur gears, the outer surfaces of the spur gears are respectively meshed with spur racks slidably connected to the base, and the upper end surfaces of the spur racks are respectively fixedly connected with movable second guide plates.

[0011] The left and right end surfaces of the cross frame are respectively fixed with cross bars, the front and rear end surfaces of the cross bars are respectively fixed with long pins, and the second guide plate is respectively provided with a second long oblique groove and a second long vertical groove matched with the long pins.

[0012] The upper end surface of the base is slidably connected to a rectangular frame, the upper end surface of the rectangular frame is slidably connected to a square frame, the inner wall of the square frame is rotatably connected to a circular frame, the inner wall of the circular frame is rotatably connected to a guide frame, the lower end surface of the guide frame is slidably connected to two scrapers, the base is provided with a driving device that can drive the scrapers to move, long guide rods are respectively fixed at the four end corners of the guide frame, and the long guide rods are respectively slidably connected to the inner walls of the four-claw frame.

[0013] The driving device is a plurality of third guide plates slidably connected to the base, and the third guide plates are respectively provided with an upper vertical groove, a third long oblique groove and a lower vertical groove that match the long pin. A U-shaped rod is fixedly connected to the inner end faces of the two third guide plates, and a second ball seat is fixedly connected to the middle of the U-shaped rod. The first ball seat is fixedly connected to the inner wall of the middle of the scraper, and a ball rod is respectively provided between the first ball seat and the second ball seat.

[0014] The driving device is a plurality of telescopic cylinders, which are respectively mounted on the front and rear sides of the lower end surface of the guide frame, and the scraper is fixedly connected to the telescopic end of the telescopic cylinder.

[0015] Compared with the prior art, the present invention has the following advantages: When in use, by setting a rectangular frame that can move left and right, the first driving plate and the second driving plate can be driven to swing forward synchronously, that is, the corresponding semicircular pressure rods can move circumferentially along the outer circumference of the mold barrel, and the mold barrel is used to support and block the steel plate, so that the steel plate is deformed along the outer surface of the mold barrel when it is squeezed. After the steel plate is placed in a specified position, when the first driving plate and the second driving plate swing, the semicircular pressure rod can be driven to move forward in a circular manner. The semicircular pressure rod can squeeze the steel plate and make the steel plate deformed along the outer surface of the mold barrel, so that the steel plate is bent into a desired shape. When the first driving plate and the second driving plate swing backward and reset, the two first wedge blocks can be driven to move upward. The upward movement of the first wedge block can push the steel plate that is bent and attached to the outer surface of the mold barrel upward, so that the bent steel plate is pushed to the upper end position of the mold barrel, which is convenient for taking and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a first axonometric diagram of a soil water seepage detection device for geotechnical engineering of the present invention.

[0017] Figure 2 This is a second axonometric diagram of a soil water seepage detection device for geotechnical engineering according to the present invention.

[0018] Figure 3 The present invention is a schematic diagram of a cross frame installation of a soil water seepage detection device for geotechnical engineering.

[0019] Figure 4 The present invention is a cross-sectional view of a soil water seepage detection device for geotechnical engineering.

[0020] Figure 5 The present invention is a schematic diagram of the installation of a second guide plate of a soil water seepage detection device for geotechnical engineering.

[0021] Figure 6 The present invention is a schematic diagram of the installation of a spur rack of a soil water seepage detection device for geotechnical engineering.

[0022] Figure 7 The invention discloses a cross-sectional view of a reinforcement pile of a soil water seepage detection device for geotechnical engineering.

[0023] Figure 8 The present invention is a schematic diagram of the installation of a threaded sleeve of a soil water seepage detection device for geotechnical engineering.

[0024] Fig. 9 The present invention is a schematic diagram of the installation of a scissor-type telescopic frame of a soil water seepage detection device for geotechnical engineering.

[0025] Fig.10 The present invention is a schematic diagram of the installation of a guide frame of a soil water seepage detection device for geotechnical engineering.

[0026] Fig.11 The invention is a schematic diagram of the installation of a circular ring frame of a soil water seepage detection device for geotechnical engineering.

[0027] Fig.12 The present invention is a schematic diagram of the installation of a scraper of a soil water seepage detection device for geotechnical engineering.

[0028] Fig.13 The present invention is a schematic diagram of the installation of a ball bar of a soil water seepage detection device for geotechnical engineering.

[0029] Numbers in the figure: 1-bottom plate, 2-bottom support plate, 3-cross frame, 4-multi-stage telescopic rod, 5-ball pin, 6-measuring tube, 7-four-claw frame, 8-test cover, 9-leakage nozzle, 10-clamping pad, 11-square guide rod, 12-first sliding pin, 13-first guide plate, 14-first short oblique groove, 15-first short vertical groove, 16-second short oblique groove, 17-first long vertical groove, 18-cross bar, 19-long pin, 20-second guide plate, 21-second long oblique groove, 22-second long vertical groove, 23-spur rack, 24-spur gear, 25-add Fixed pile, 26-threaded rod, 27-threaded sleeve, 28-circular sleeve, 29-scissor-type telescopic frame, 30-sliding seat, 32-driving plate, 33-oblique key groove, 34-short pin, 35-expansion nail, 36-expansion support plate, 37-third guide plate, 38-upper vertical groove, 39-third long oblique groove, 40-lower vertical groove, 41-rectangular frame, 42-square frame, 43-circular ring frame, 44-guide frame, 45-scraper, 46-U-shaped rod, 47-first ball seat, 48-ball rod, 49-second ball seat, 50-long guide rod, 51-pointed cone. DETAILED DESCRIPTION

[0030] The following are specific embodiments of the present invention, and the technical solutions of the present invention are further described in conjunction with the accompanying drawings, but the present invention is not limited to these embodiments.

[0031] like Figure 1-Figure 13 As shown, the present invention provides a soil seepage detection device for geotechnical engineering, including a base, a horizontal frame 3 capable of moving up and down is provided on the upper end of the base, a rotatable ball pin 5 is provided in the middle of the horizontal frame 3, a test cover 8 is provided at the lower end of the ball pin 5, a measuring tube 6 is provided at the upper end of the ball pin 5, clamping pads 10 matching with the ball pin 5 are respectively provided on the inner walls of both sides of the horizontal frame 3, reinforcement piles 25 are respectively provided at the four end corners of the base, and a plurality of expansion plates 36 are respectively provided on the inner walls of the reinforcement piles 25, when the horizontal frame 3 moves downward, a structure in which the clamping pad 10 moves outward and then moves inward can be formed, and when the horizontal frame 3 moves downward, a structure in which the plurality of expansion plates 36 move outward synchronously can be formed.

[0032] like Figure 1-Figure 9 As shown, the base includes two bottom plates 1 and two bottom support plates 2. The two bottom support plates 2 are fixedly connected to the inner end surfaces of the two bottom plates 1 so that the base can stably support the entire device; the cross frame 3 is used to support and install components such as the ball pin 5, the test cover 8, the measuring tube 6, and the clamping pad 10. The measuring tube 6 is provided with scale lines. The measuring tube 6 can be made of transparent material to facilitate observation of the internal water level line. When soil testing is performed on the slope surface, the device is placed at a designated position and the reinforcement pile 25 is pushed deep into the ground. The two clamping pads 10 are in the innermost end position under normal conditions. When the clamping pad 10 is in the innermost end position, the ball pin 5 and the test cover can be aligned with the clamping pad 10. 8, measuring tube 6, etc. are fixed. When the horizontal frame 3 moves downward, the two clamping pads 10 can be moved outward. When the clamping pads 10 move outward, the ball pin 5 can swing on the inner wall of the horizontal frame 3, which is equivalent to a ball hinge, and can be turned over with multiple degrees of freedom front and back, left and right, so as to adjust the test cover 8 and measuring tube 6 to a vertical state. Since the weight of the test cover 8 and other parts at the lower end of the ball pin 5 is large, when the two clamping pads 10 move outward, the ball pin 5, the test cover 8, the measuring tube 6, etc. can also be automatically calibrated vertically downward under the action of gravity. When the clamping pad 10 moves outward, it can be manually or automatically calibrated. The ball pin 5, the test cover 8 and the measuring tube 6 are adjusted to a vertical state. After the vertical state is adjusted, when the two clamping pads 10 move inwards again, the ball pin 5 can be fixed, that is, the measuring tube 6, the test cover 8, etc. can be fixed. When the cross frame 3 moves downwards, the multiple expansion plates 36 can be driven to move outwards synchronously at the same time. When the expansion plates 36 move outwards, the soil around the reinforcement piles 25 can be squeezed. At this time, the reinforcement piles 25 and the base can be more stably fixed on the ground, thereby preventing the device from rising or moving during operation. After the cross frame 3, the test cover 8, etc. continue to move downwards to the bottom and touch the ground, the cross frame 3 Moving downward further can allow the bottom of the test cover 8 to enter the soil, making the bottom of the test cover 8 sealed, and preventing water in the test cover 8 from flowing out from the bottom during testing. The water in the measuring tube 6 flows into the test cover 8 by opening the valve. When the water level line in the test cover 8 reaches a specified height, the water in the measuring tube 6 no longer flows into the test cover 8. At this time, the water pressure in the test cover 8 is at a specified value, and it is maintained at a certain water pressure to detect the soil water permeability. When in use, the device can be tested on a slope surface and always maintain a vertical state, thereby improving the detection accuracy. The bottom is firmly fixed to prevent movement during operation.

[0033] The lower end of the ball pin 5 is provided with a leakage nozzle 9, the upper end of the ball pin 5 is provided with a measuring tube 6, the outer surface of the leakage nozzle 9 is fixedly connected to a four-claw frame 7, and the test cover 8 is fixedly connected to the lower end surface of the four-claw frame 7.

[0034] like Figure 3-Figure 4As shown, a solenoid valve is provided on the leak nozzle 9, which can control the leak nozzle 9 to open or close. When the leak nozzle 9 is opened, the liquid in the measuring cylinder 6 can flow into the test cover 8. The bottom of the leak nozzle 9 is lower than the highest point of the test cover 8. When in use, the measuring cylinder 6 is filled with water, and the upper end of the measuring cylinder 6 is sealed with a rubber plug. After the test cover 8 is in contact with and fixed in the soil, the solenoid valve is opened, and the liquid in the measuring cylinder 6 will flow into the test cover 8. When the water level line in the test cover 8 reaches a specified height, that is, the water level line is higher than the position of the leak nozzle 9, the liquid water can seal the leak nozzle 9 at this time, and the outside gas cannot enter the measuring cylinder 6. At this time, the water in the measuring cylinder 6 no longer flows into the test cover 8. When the water level line in the test cover 8 drops, the water no longer seals the leak nozzle 9, and the leak nozzle 9 is exposed to the air. At this time, the water in the measuring cylinder 6 can continue to flow downward into the test cover 8, so that the water level line in the test cover 8 reaches the specified height again. During the test, the water pressure in the test cover 8 can be kept constant, thereby improving the detection accuracy.

[0035] The left and right sides of the lower end surface of the cross frame 3 are respectively fixed with multi-stage telescopic rods 4, and the bottom ends of the multi-stage telescopic rods 4 are respectively fixed to the base; the outer end surfaces of the two clamping pads 10 are respectively fixed with square guide rods 11 slidably connected to the cross frame 3, and the inner walls of the square guide rods 11 are respectively fixed with first sliding pins 12, and the left and right sides of the upper end surface of the base are respectively fixed with two first guide plates 13, and the first guide plates 13 are respectively provided with first guide grooves matching the first sliding pins 12.

[0036] like Figure 1-Figure 4 As shown, the clamping pad 10 and the square guide rod 11 are respectively connected to the inner wall of the horizontal frame 3 by sliding left and right, and the limit clamping pad 10 and the first sliding pin 12 can only move left and right on the horizontal frame 3; the multi-stage telescopic rod 4 can drive the horizontal frame 3 to move upward or downward, and the multi-stage telescopic rod 4 is a prior art and will not be described in detail; the first sliding pin 12 and the first guide plate 13 are installed and shaped as shown in FIG. Figure 3As shown, the first guide groove includes a first short oblique groove 14, a first short vertical groove 15, a second short oblique groove 16 and a first long vertical groove 17. When the first sliding pin 12 moves downward on the inner wall of the first short oblique groove 14, the two first sliding pins 12 can move downward and outward at the same time. When the first sliding pin 12 moves downward on the inner wall of the first short vertical groove 15, the two first sliding pins 12 can move vertically downward at the outermost end. When the first sliding pin 12 moves downward on the inner wall of the second short oblique groove 16, the two first sliding pins 12 can move downward and inward at the same time. When the first sliding pin 12 moves downward on the inner wall of the first long vertical groove 17, the first sliding pin 12 can move vertically downward at the innermost end; when the multi-stage telescopic rod 4 is working, the cross frame 3, the clamping pad 10, the first sliding pin 12, etc. can be moved downward synchronously. When the first sliding pin 12 moves downward, under the engagement with the first short vertical groove 15, the two first sliding pins 12 can be moved outward synchronously, that is, the corresponding clamping pads 10 move outward synchronously. When the clamping pad 10 moves outward, it can slowly disengage from the ball pin 5. When the cross frame 3, the first sliding pin 12 and the first clamping pad 10 are engaged with each other, the two first sliding pins 12 can be moved outward synchronously. When the cross frame 3, the first sliding pin 12 and the second short oblique groove 16 continue to move downward, the first sliding pin 12 is engaged with the first short vertical groove 15, so that the two first sliding pins 12 are at the outermost end, that is, the corresponding clamping pad 10 is at the outermost end, and can be completely out of contact with the ball pin 5. At this time, the ball pin 5 can swing forward and backward or left and right, and can adjust the measuring cylinder 6 and the test cover 8 at multiple angles, so that the test cover 8 and the measuring cylinder 6 are in a vertical state. When the cross frame 3, the first sliding pin 12 and the second short oblique groove 16 continue to move downward, the first sliding pin 12 can be engaged with the second short oblique groove 16, so that the first sliding pin 1 2 moves downward and inward at the same time, that is, the corresponding clamping pad 10 can move inward to clamp and fix the ball pin 5, that is, fix the adjusted measuring tube 6, test cover 8, etc. When the cross frame 3, the first sliding pin 12, etc. continue to move downward, under the engagement of the first sliding pin 12 and the first long vertical groove 17, the first sliding pin 12 can be at the innermost end and move vertically downward, that is, the corresponding clamping pad 10 can always clamp and fix the ball pin 5, that is, the limit measuring tube 6 and the test cover 8 are always in a vertical state and move downward until the test cover 8 reaches the ground.

[0037] The inner walls of the reinforcement piles 25 are respectively provided with rotatable threaded rods 26, and threaded sleeves 27 are respectively threadedly connected on the outer surfaces of the threaded rods 26. Four evenly distributed scissor-type telescopic frames 29 are respectively hinged on the outer surfaces of the threaded sleeves 27. The lower ends of the outer surfaces of the threaded rods 26 are respectively rotatably connected with circular ring sleeves 28 fixed to the reinforcement piles 25. The inner sides of the lower ends of the scissor-type telescopic frames 29 are respectively hinged on the corresponding circular ring sleeves 28. The expansion plates 36 are respectively hinged on the outer sides of the lower ends of the corresponding scissor-type telescopic frames 29, and the upper ends of the scissor-type telescopic frames 29 are respectively hinged on the outer sides with sliding seats 30 slidably connected to the expansion plates 36.

[0038] like Figure 7-Figure 9As shown, a pointed cone 51 is provided at the lower end of the reinforcement pile 25, and the function of the pointed cone 51 is to facilitate driving the reinforcement pile 25 deep into the ground. The threaded rod 26 is rotatably connected to the inner wall of the reinforcement pile 25, and four evenly distributed fan-shaped holes are opened on the outer surface of the reinforcement pile 25. The expansion plates 36 are respectively installed on the corresponding inner walls of the fan-shaped holes, and the expansion plates 36 can move inward or outward; the annular sleeve 28 is fixed to the inner wall of the bottom end of the reinforcement pile 25, and the limited scissor-type telescopic frame 29 can only be expanded outward or contracted inward, and cannot be rotated; the sliding seat 30 can be slidably connected to the inner wall of the expansion plate 36 up and down, through the threaded connection between the threaded sleeve 27 and the threaded rod 26. Since the threaded sleeve 27 cannot rotate under the hinge of the scissor-type telescopic frame 29, when the threaded rod 26 rotates, the threaded sleeve 27 can be driven to move downward or upward, and the threaded sleeve 27 has a self-sustaining function under the threaded connection between the threaded sleeve 27 and the threaded rod 26. The locking function is that when the threaded rod 26 does not rotate, the corresponding threaded sleeve 27 is in a fixed state, that is, the position of the expansion plate 36 is in a fixed state; when the expansion plate 36 needs to move outward or inward, the threaded sleeve 27 can be moved upward or downward by driving the threaded rod 26 to rotate. When the threaded sleeve 27 moves upward or downward, the scissor-type telescopic frame 29 can be driven to close inward or open outward. At the same time, the sliding seat 30 can slide on the expansion plate 36. When the scissor-type telescopic frame 29 is closed inward or opened outward, the expansion plate 36 can be driven to move inward or outward. After the reinforcement pile 25 goes deep into the ground, the expansion plate 36 can squeeze the soil when it moves outward, so that the reinforcement pile 25 is more stably fixed underground. When the expansion plate 36 moves inward, it can be reset and retracted into the reinforcement pile 25. At this time, the reinforcement pile 25 can pull up the storage device.

[0039] The two sides of the sliding seat 30 are fixedly connected with driving plates 32 respectively, the inner walls of the two sides of the expansion support plate 36 are slidably connected with expansion pins 35 respectively, and the expansion pins 35 are fixedly connected with short pins 34 respectively. The driving plate 32 is provided with oblique key slots 33 matched with the short pins 34.

[0040] like Figure 8 As shown, the expansion nail 35 can slide inwardly or outwardly on the inner wall of the expansion support plate 36, and the inner walls of the sliding seat 30 are respectively fixed with a rotating shaft, and the outer sides of the upper ends of the scissor-type telescopic frame 29 are respectively rotatably connected to the rotating shaft, and the driving plates 32 are respectively fixed to the rotating shaft. When the sliding seat 30 moves up and down, it can drive the corresponding driving plate 32 to move up and down, that is, when the scissor-type telescopic frame 29 is unfolded outward, the expansion support plate 36 can be moved outward, and at the same time, the sliding seat 30 can be driven to move downward. When the sliding seat 30 moves downward, the expansion nail 35 can be driven to move outward through the engagement of the short pin 34 and the oblique key groove 33. When the expansion nail 35 moves outward, it will penetrate into the side wall of the soil, which can further reinforce the entire device. When the scissor-type telescopic frame 29 is folded and the expansion support plate 36 moves inward, the corresponding expansion nail 35 will move inward and fold, that is, fold into the reinforcement pile 25 and reset.

[0041] The upper ends of the outer surfaces of the threaded rods 26 are fixedly connected with spur gears 24 , the outer surfaces of the spur gears 24 are meshed with spur racks 23 slidably connected to the base, and the upper end surfaces of the spur racks 23 are fixedly connected with movable second guide plates 20 .

[0042] like Figure 5-Figure 7 As shown, the spur rack 23 can be slidably connected to the upper end surface of the base plate 1 forward and backward. Through the meshing of the spur rack 23 and the spur gear 24, when the spur rack 23 moves forward and backward, the spur gear 24 can be driven to rotate in the forward or reverse direction. By providing a movable second guide plate 20, when the two second guide plates 20 move synchronously outward, the corresponding spur rack 23 can be driven to move synchronously outward. The synchronous outward movement of the spur rack 23 can also drive the spur gear 24 to rotate. When the spur gear 24 rotates, it can also drive the threaded rod 26 to rotate. When the threaded rod 26 rotates, it can also drive the expansion plate 36 to move outward or inward, so that the corresponding expansion plate 36 can be synchronously moved outward to open, and synchronously moved inward to close.

[0043] The left and right end surfaces of the cross frame 3 are respectively fixed with cross bars 18, and the front and rear end surfaces of the cross bar 18 are respectively fixed with long pins 19. The second guide plate 20 is respectively provided with a second long oblique groove 21 and a second long vertical groove 22 that match the long pin 19.

[0044] like Figure 5 As shown, by setting the cross frame 3 and the cross bar 18, the long pin 19 can be driven to move up and down when the cross frame 3 moves up and down. When the long pin 19 moves downward, the second long inclined groove 21 is engaged with the long pin 19, so that the second guide plate 20 can be driven to move outward, that is, the second guide plate 20 and the straight rack 23 move outward, thereby driving the corresponding expansion plate 36 to move outward. When the long pin 19 continues to move downward and enters the inner wall of the second long vertical groove 22, the long pin 19 no longer drives the second guide plate 20 to move outward, that is, the corresponding expansion plate 36 and expansion nail 35 are at the outermost end, and the device is in a completely fixed state. When the cross frame 3 continues to move downward, it can drive the test cover 8 and the like to move downward, that is, drive the test cover 8 and other components to work.

[0045] A rectangular frame 41 is slidably connected to the upper end surface of the base, a square frame 42 is slidably connected to the upper end surface of the rectangular frame 41, a circular frame 43 is rotatably connected to the inner wall of the square frame 42, a guide frame 44 is rotatably connected to the inner wall of the circular frame 43, two scrapers 45 are slidably connected to the lower end surface of the guide frame 44, a driving device capable of driving the scrapers 45 to move is provided on the base, long guide rods 50 are respectively fixed to the four end corners of the guide frame 44, and the long guide rods 50 are respectively slidably connected to the inner walls of the four-claw frame 7.

[0046] like Figure 10-12As shown, the rectangular frame 41 can be slidably connected to the upper end surface of the bottom support plate 2 left and right, and the square frame 42 can be slidably connected to the upper end surface of the rectangular frame 41 front and back, that is, through the limiting position of the rectangular frame 41 and the square frame 42, the circular frame 43 and the guide frame 44 can move both front and back and left and right; the inner walls at the front and rear ends of the circular frame 43 are respectively fixed with rotating shafts, and the rotating shafts are rotatably connected to the inner walls of the square frame 42, that is, the circular frame 43 and the guide frame 44 can flip and swing left and right on the inner wall of the square frame 42, and the inner walls at the left and right ends of the guide frame 44 are fixed with rotating shafts, and the rotating shafts are rotatably connected to the inner wall of the circular frame 43, that is, the guide frame 44 can flip and swing back and forth on the inner wall of the circular frame 43; the scraper 45 can slide back and forth on the lower end surface of the guide frame 44, and the scraper 45 can be driven to move synchronously inward or outward through the provided driving device; the installation and shape of the guide frame 44, the long guide rod 50, and the four-claw frame 7 are as shown in Fig.10 As shown, when the long guide rod 50 can be slidably connected to the inner wall of the four-claw frame 7 up and down, that is, under the limit of the long guide rod 50 and the four-claw frame 7, the guide frame 44 can always remain parallel to the four-claw frame 7, and the guide frame 44 is rotatably connected to the circular frame 43, and the circular frame 43 is rotatably connected to the square frame 42, that is, the guide frame 44 can swing back and forth and left and right on the inner wall of the square frame 42, which is equivalent to the guide frame 44 being ball-hinged on the inner wall of the square frame 42, and the square frame 42 can slide back and forth on the rectangular frame 41, and the rectangular frame 41 can slide left and right on the base, that is, the limited guide frame 44 can be turned over and swung back and forth or left and right on the base, and can also move back and forth or left and right to change position; when the clamping pad 10 is out of contact with the ball pin 5, the ball pin 5, the test cover 8, etc. can swing back and forth or left and right, when the ball pin 5, the test cover 8, the four-claw frame When the swing of 7 is adjusted to a vertical state, the four-claw frame 7 can drive multiple long guide rods 50 and the guide frame 44 to swing and move synchronously, and the guide frame 44 can be adjusted to a vertical state. When the guide frame 44 is adjusted to a vertical state, the corresponding scraper 45 can be in a vertical state, that is, the two scrapers 45 can scrape the test cover 8 and the soil at the lower end of the guide frame 44 when moving outward, so that impurities on the ground are scraped to both sides, and the two scrapers 45 always keep in a vertical state and scrape outward. After scraping the soil, the scraper 45 can make the ground at the lower end of the guide frame 44 a horizontal plane, and the test cover 8 can be in close contact with the horizontal ground when moving downward, and when the ground is horizontal, the water pressure in the test cover 8 can be at a fixed value, and the contact area between the liquid water and the horizontal ground is also at a fixed value, which can more accurately measure the soil water permeability.

[0047] The driving device is a plurality of third guide plates 37 slidably connected to the base, and the third guide plates 37 are respectively provided with an upper vertical groove 38, a third long inclined groove 39 and a lower vertical groove 40 that cooperate with the long pin 19. A U-shaped rod 46 is fixedly connected to the inner end surface of each of the two third guide plates 37, and a second ball seat 49 is fixedly connected to the middle of the U-shaped rod 46. The first ball seat 47 is fixedly connected to the inner wall of the middle part of the scraper 45, and a ball rod 48 is respectively provided between the first ball seat 47 and the second ball seat 49.

[0048] like Figure 6 , Figure 12-13 As shown, one end of the ball rod 48 is respectively arranged on the first ball seat 47, and the other end of the ball rod 48 is respectively arranged on the second ball seat 49, that is, the two ends of the first ball rod 48 are equivalent to being respectively articulated with the scraper 45 and the U-shaped rod 46, so that the scraper 45 can not only swing forward and backward and flip as well as swing left and right following the guide frame 44, but also can make the scraper 45 move forward and backward or left and right with a small amplitude following the guide frame 44; that is, through the connection of the first ball seat 47, the second ball seat 49, and the ball rod 48, the scraper 45 can be driven to move forward and backward when the U-shaped rod 46 moves forward and backward, and when the scraper 45 and the guide frame 44 are adjusted to a vertical state, they can always maintain the connection with the U-shaped rod 46, and the two do not affect each other; as shown in FIG. Figure 6As shown, four third guide plates 37 are provided, which can be slidably connected to the upper end surface of the bottom plate 1 forward and backward, that is, the third guide plate 37 is limited to move forward and backward; through the engagement of the upper vertical slot 38, the third long inclined slot 39 and the lower vertical slot 40 with the long pin 19, when the cross frame 3 moves downward, the long pin 19 can be driven to move downward. When the long pin 19 moves downward on the inner wall of the upper vertical slot 38, the long pin 19 will not drive the third guide plate 37 to move. When the long pin 19 moves downward to enter the inner wall of the third long inclined slot 39 and continues to move downward, the long pin 19 will drive the two third guide plates 37 to move outward under the engagement of the third long inclined slot 39. When the third guide plate 37 moves outward, it can also drive the U-shaped rod 46 to move outward. The U-shaped rod 46 moves outward When the cross frame 3 moves downward, the scraper 45 can be driven to move outward. When the long pin 19 moves downward and enters the inner wall of the lower vertical groove 40, the long pin 19 continues to move downward, which will make the third guide plate 37 at the outermost end, that is, the third guide plate 37 is in a static state at the outermost end; when the cross frame 3 moves downward, through the engagement of the first guide plate 13 with the first sliding pin 12, the engagement of the second guide plate 20 and the third guide plate 37 with the long pin 19, the two clamping pads 10 can be moved outward to open, and the expansion support plate 36 can be moved outward to fix the reinforcement pile 25. After the clamping pad 10 moves outward to open, the positions of the ball pin 5, the test cover 8, the measuring tube 6, the scraper 45, etc. can be adjusted to make the test cover 8, the scraper 45, etc. adjusted to a vertical state. When the cross frame 3 continues to move downward, this When the horizontal frame 3 continues to move downward, the long pin 19 can drive the two third guide plates 37 to move outward, that is, the corresponding U-shaped rods 46, scrapers 45, etc. move outward synchronously. When the scrapers 45 move outward to the top, that is, the scrapers 45 clean the ground horizontally, the horizontal frame 3 continues to move downward, and the corresponding scrapers 45 are at the outermost end and no longer move. When the horizontal frame 3 continues to move downward, it can drive the test cover 8 to move downward until it touches the horizontal ground. After the test cover 8 touches the ground, it can be moved into the test cover 8. Water filling test; through the cooperation of the first guide plate 13 and the first sliding pin 12, and the cooperation of the second guide plate 20 and the third guide plate 37 and the long pin 19, the clamping pad 10, the expansion plate 36, and the scraper 45 can work in sequence respectively, so that the device can be fixed when the clamping pad 10 and the expansion plate 36 are working, and then the test cover 8 and the scraper 45 are adjusted to a vertical state. After the fixation is completed, that is, the scraper 45 is adjusted to a vertical state, the two scrapers 45 can move outward to scrape the ground flat; although the U-shaped rod 46 and the scraper 45 can be connected without affecting each other through the connection of the first ball seat 47, the second ball seat 49 and the ball rod 48, the scraper 45 is limited in its movement range by the positioning of the U-shaped rod 46 and the ball rod 48.

[0049] The driving device is a plurality of telescopic cylinders, which are respectively mounted on the front and rear sides of the lower end surface of the guide frame 44, and the scraper 45 is fixedly connected to the telescopic end of the telescopic cylinder.

[0050] like Fig.12 As shown, four telescopic cylinders can be provided, which are respectively fixed on the front and rear sides and the left and right ends of the lower end surface of the guide frame 44. When telescopic, the telescopic cylinder can drive the scraper 45 to move synchronously inward or outward. The telescopic cylinder is a prior art and will not be described in detail. Although the U-shaped rod 46 and the scraper 45 can be connected without affecting each other through the connection of the first ball seat 47, the second ball seat 49 and the ball rod 48, the scraper 45 is limited in its movement range by the U-shaped rod 46 and the ball rod 48. Although this setting no longer requires a new power source and can reduce costs, it is also accompanied by certain defects, that is, the movement range is greatly limited. The defect of limited movement range can be overcome by setting a telescopic cylinder, but the cost is high and the setting is selected according to demand.

[0051] When the present invention is in use, by placing the device at a designated position, the reinforcement pile 25 is pushed deep into the ground, and the two clamping pads 10 are at the innermost end position under normal conditions. When the clamping pads 10 are at the innermost end position, the ball pin 5, the test cover 8, the measuring tube 6, etc. can be fixed. When the cross frame 3 moves downward, the two clamping pads 10 can move outward. When the clamping pads 10 move outward, the ball pin 5 can swing on the inner wall of the cross frame 3, which is equivalent to a ball hinge, and can be turned over in multiple degrees of freedom, front and back, left and right, and can be used for testing. The cover 8 and the measuring tube 6 are adjusted to a vertical state. Since the weight of the test cover 8 and other parts at the lower end of the ball pin 5 is large, when the two clamping pads 10 move outward, the ball pin 5, the test cover 8, the measuring tube 6, etc. can also be automatically calibrated vertically downward under the action of gravity. When the clamping pads 10 move outward, the ball pin 5, the test cover 8, and the measuring tube 6 can be adjusted to a vertical state by manual or automatic calibration. After adjusting the vertical state, when the two clamping pads 10 move inward again, the ball pin 5 can be fixed, that is, the measuring tube 6 , test cover 8, etc. are fixed, and when the horizontal frame 3 moves downward, it can simultaneously drive multiple expansion plates 36 to move synchronously outward. When the expansion plates 36 move outward, they can squeeze the soil around the reinforcement piles 25, and at this time, the reinforcement piles 25 and the base can be more stably fixed on the ground, thereby preventing the device from rising or moving during operation. After the horizontal frame 3, the test cover 8, etc. continue to move downward and reach the bottom to touch the ground, the horizontal frame 3 moves downward again to enable the bottom of the test cover 8 to enter the soil, so that the bottom of the test cover 8 is sealed, and the water in the test cover 8 can be prevented from flowing out from the bottom during the test. The water in the measuring tube 6 is allowed to flow into the test cover 8 by opening the valve. When the water level line in the test cover 8 reaches the specified height, the water in the measuring tube 6 no longer flows into the test cover 8. At this time, the water pressure in the test cover 8 is at the specified value, and it is maintained at a certain water pressure to detect the soil water permeability. When the device is in use, it can be tested on a slope surface and always maintain a vertical state, thereby improving the detection accuracy, and the bottom is firmly fixed to prevent movement during operation.

Claims

1. A soil seepage detection device for geotechnical engineering, comprising a base, characterized in that: The upper end of the base is provided with a horizontal frame (3) that can move up and down, the middle of the horizontal frame (3) is provided with a rotatable ball pin (5), the lower end of the ball pin (5) is provided with a test cover (8), the upper end of the ball pin (5) is provided with a measuring tube (6), the inner walls of both sides of the horizontal frame (3) are respectively provided with clamping pads (10) that match the ball pin (5), the four end corners of the base are respectively provided with reinforcement piles (25), and the inner walls of the reinforcement piles (25) are respectively provided with a plurality of expansion plates (36), when the horizontal frame (3) moves downward, a structure in which the clamping pad (10) moves outward and then moves inward, and when the horizontal frame (3) moves downward, a structure in which the plurality of expansion plates (36) move outward synchronously.

2. A soil seepage detection device for geotechnical engineering as claimed in claim 1, characterized in that: The lower end of the ball pin (5) is provided with a nozzle (9), the upper end of the ball pin (5) is provided with a measuring tube (6), a four-claw frame (7) is fixedly connected to the outer surface of the nozzle (9), and a test cover (8) is fixedly connected to the lower end surface of the four-claw frame (7).

3. A soil seepage detection device for geotechnical engineering as claimed in claim 1, characterized in that: The left and right sides of the lower end surface of the cross frame (3) are respectively fixedly connected to the multi-stage telescopic rod (4), and the bottom ends of the multi-stage telescopic rod (4) are respectively fixedly connected to the base; the outer end surfaces of the two clamping pads (10) are respectively fixedly connected to the square guide rods (11) slidably connected to the cross frame (3), and the inner walls of the square guide rods (11) are respectively fixedly connected to the first sliding pins (12); the left and right sides of the upper end surface of the base are respectively fixedly connected to two first guide plates (13), and the first guide plates (13) are respectively provided with first guide grooves matching the first sliding pins (12).

4. A soil seepage detection device for geotechnical engineering as claimed in claim 2, characterized in that: The inner wall of the reinforcement pile (25) is provided with a rotatable threaded rod (26), the outer surface of the threaded rod (26) is threadedly connected with a threaded sleeve (27), the outer surface of the threaded sleeve (27) is hinged with four evenly distributed scissor-type telescopic frames (29), the lower end of the outer surface of the threaded rod (26) is rotatably connected with a circular ring (28) fixed to the reinforcement pile (25), the inner side of the lower end of the scissor-type telescopic frame (29) is hinged on the corresponding circular ring (28), the expansion plate (36) is hinged on the outer side of the lower end of the corresponding scissor-type telescopic frame (29), and the upper end of the scissor-type telescopic frame (29) is hinged with a sliding seat (30) slidably connected to the expansion plate (36) on the outer side.

5. A soil seepage detection device for geotechnical engineering as claimed in claim 4, characterized in that: The sliding seat (30) is fixedly connected to driving plates (32) on both sides, and the inner walls of the expansion support plate (36) on both sides are slidably connected to expansion pins (35), and the expansion pins (35) are fixedly connected to short pins (34), and the driving plates (32) are respectively provided with oblique key slots (33) matching with the short pins (34).

6. A soil seepage detection device for geotechnical engineering as claimed in claim 4, characterized in that: The upper ends of the outer surfaces of the threaded rods (26) are respectively fixedly connected to spur gears (24), the outer surfaces of the spur gears (24) are respectively meshed with spur racks (23) slidably connected to the base, and the upper end surfaces of the spur racks (23) are respectively fixedly connected to movable second guide plates (20).

7. A soil seepage detection device for geotechnical engineering as claimed in claim 6, characterized in that: The left and right end surfaces of the cross frame (3) are respectively fixedly connected to cross bars (18), the front and rear end surfaces of the cross bar (18) are respectively fixedly connected to long pins (19), and the second guide plate (20) is respectively provided with a second long oblique groove (21) and a second long vertical groove (22) that match the long pin (19).

8. A soil seepage detection device for geotechnical engineering as claimed in claim 7, characterized in that: The upper end surface of the base is slidably connected to a rectangular frame (41), the upper end surface of the rectangular frame (41) is slidably connected to a square frame (42), the inner wall of the square frame (42) is rotatably connected to a circular frame (43), the inner wall of the circular frame (43) is rotatably connected to a guide frame (44), the lower end surface of the guide frame (44) is slidably connected to two scrapers (45), the base is provided with a driving device capable of driving the scrapers (45) to move, and long guide rods (50) are respectively fixedly connected to the four end corners of the guide frame (44), and the long guide rods (50) are respectively slidably connected to the inner walls of the four-claw frame (7).

9. A soil seepage detection device for geotechnical engineering as claimed in claim 8, characterized in that: The driving device comprises a plurality of third guide plates (37) slidably connected to the base. The third guide plates (37) are respectively provided with an upper vertical groove (38) matched with the long pin (19), a third long inclined groove (39) and a lower vertical groove (40). An inner end surface of each of the two third guide plates (37) is fixedly connected with a U-shaped rod (46). A second ball seat (49) is respectively fixedly connected to the middle of the U-shaped rod (46). A first ball seat (47) is respectively fixedly connected to the inner wall of the middle of the scraper (45). A ball rod (48) is respectively provided between the first ball seat (47) and the second ball seat (49).

10. A soil seepage detection device for geotechnical engineering as claimed in claim 8, characterized in that: The driving device is a plurality of telescopic cylinders, which are respectively mounted on the front and rear sides of the lower end surface of the guide frame (44), and the scraper (45) is fixedly connected to the telescopic end of the telescopic cylinder.

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