Detection device for diaphragm wall guide wall

Abstract

The utility model relates to a detection device for a diaphragm wall and a guide wall, which comprises a base and a support, the support comprises a horizontal plate and a vertical plate which are arranged in a T shape, the horizontal plate is arranged above the base and is connected with the base through a plurality of leveling units, the vertical plate is provided with a through hole, and the through hole is used for an ultrasonic electroacoustic transducer to pass through to form a detection area AR; the lifting table is in linear sliding connection with the vertical plate; a cylinder body I of the servo electric cylinder I is fixedly connected with the lifting platform, and the telescopic direction of a telescopic rod I of the servo electric cylinder I is the horizontal direction pointing to the diaphragm wall guide wall detection surface; the probe mounting plate is fixedly connected with the telescopic rod I. The ultrasonic electroacoustic transducer T and the ultrasonic electroacoustic transducer R are fixedly connected with the probe mounting plate. A cleaning brush and a coupling agent supply bottle are arranged on the vertical plate, the coupling agent supply bottle comprises a barrel and an extrusion end cover, a plurality of extrusion holes are formed in the extrusion end cover, and the extrusion of a coupling agent in the coupling agent supply bottle is driven by a servo electric cylinder III; the extrusion end cover is located above the cleaning brush, and the cleaning brush is located above the detection area AR. According to the technical scheme, the detection result is high in accuracy and can be used for guiding engineering practice.

Description

Technical Field

[0001] This utility model belongs to the field of diaphragm wall construction technology, specifically relating to a detection device for diaphragm wall guide walls. Background Technology

[0002] To determine whether a diaphragm wall guide wall is suitable for serving as a diaphragm wall at the top of an excavation pit, Chinese invention patent CN114892640B discloses a detection device for a diaphragm wall guide wall that can also serve as a diaphragm wall at the top of an excavation pit. The device uses a vertically movable beam to move sensors for detecting concrete thickness and surface hardness up and down. A servo electric cylinder pushes the sensors to press against the concrete surface of the vertical side of the guide wall to measure the concrete thickness and surface hardness, thereby determining the construction quality of the guide wall concrete.

[0003] The aforementioned existing technology has the following drawbacks: the measurement results differ significantly from those obtained by manually handheld sensors, and therefore cannot effectively guide practical engineering applications. Utility Model Content

[0004] The technical problem to be solved by this utility model is to make up for the shortcomings of the prior art and provide a detection device for diaphragm wall guide walls.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is as follows:

[0006] A detection device for a diaphragm wall guide wall includes a base and a support. The support includes a horizontal plate and a vertical plate arranged in a T-shape. The horizontal plate is located above the base and connected to the base through several leveling units. The vertical plate has through holes for ultrasonic-electroacoustic transducers T and R to pass through, forming a detection area AR. A lifting platform is linearly slidably connected to the vertical plate in the up-down direction, and the lifting of the lifting platform is driven by a motor. The cylinder body I of a servo cylinder I is fixedly connected to the lifting platform, and the extension and retraction direction of the telescopic rod I of the servo cylinder I is horizontal, pointing towards the detection surface of the diaphragm wall guide wall. A probe mounting plate is fixedly connected to the telescopic rod I, and the ultrasonic-electroacoustic transducers T and R are fixedly connected to the probe mounting plate. A cleaning brush and a coupling agent supply bottle are provided on the vertical plate. The coupling agent supply bottle includes a cylindrical body and an extrusion end cap. The extrusion end cap has several extrusion holes, and the extrusion of the coupling agent in the coupling agent supply bottle is driven by a servo cylinder III. The extrusion end cap is located above the cleaning brush, and the cleaning brush is located above the detection area AR.

[0007] Furthermore, an anti-slip rubber pad is fixedly provided on the bottom of the base.

[0008] Furthermore, the leveling unit includes a height adjustment nut and a screw. The outer circumference of the height adjustment nut is provided with an external thread F, and the center is provided with a light hole. The height adjustment nut is screwed to the internal thread F on the level plate through the external thread F. The bottom surface of the height adjustment nut is in contact with the top surface of the base. After the screw passes through the light hole of the height adjustment nut, it is screwed to the internal thread G on the base. Tightening the screw fixes the base to the level plate.

[0009] Furthermore, the coupling agent supply bottle also includes a movable cap, the cylinder is a cylindrical body made of rigid material, the extrusion end cap is sealed at one end of the cylinder, and the other end of the cylinder is open. The outer peripheral wall of the movable cap is slidably connected to the inner wall of the cylinder. The movable cap, the cylinder, and the extrusion end cap together form a coupling agent receiving cavity. A feeding port is provided on the movable cap, and the feeding port is sealed with a plug that is easy to disassemble. The movable cap is fixedly connected to the telescopic rod III of the servo electric cylinder III, and the cylinder body III of the servo electric cylinder III is fixedly connected to the bracket.

[0010] Furthermore, a leveling auxiliary bubble tray is fixed at the center of the top surface of the horizontal plate of the support.

[0011] Furthermore, the linear sliding connection between the lifting platform and the vertical plate is as follows: the slider is fixedly connected to the lifting platform, the slider is slidably connected to the linear guide rail, and the linear guide rail is fixedly connected to the vertical plate; the lead screw nut is fixedly connected to the lifting platform, the lead screw nut is screwed to the ball screw, the upper and lower parts of the ball screw are respectively rotatably connected to the upper bearing seat and the lower bearing seat, both of which are fixedly connected to the vertical plate; the ball screw is fixedly connected to the output shaft of the motor through a coupling, and the motor is fixedly connected to the bracket.

[0012] The beneficial effects achievable by this invention are as follows: By using a leveling unit to keep the horizontal plate horizontal, the vertical plate is kept vertical, thus maximizing the contact between the detection surfaces of the ultrasonic transducers T and R and the detected surfaces of the diaphragm wall guide wall. Simultaneously, applying a coupling agent to the detection surfaces of the ultrasonic transducers T and R further eliminates the gap between the transducers and the detected surfaces of the diaphragm wall guide wall. This effectively improves detection accuracy, significantly reduces the gap with manually operated handheld sensor measurements, and allows the automatic detection results to guide practical engineering applications. Attached Figure Description

[0013] Figure 1 This is a front view of an embodiment of the present utility model.

[0014] Figure 2 This is a perspective view (a) of an embodiment of the present utility model.

[0015] Figure 3 This is a perspective view (II) of an embodiment of the present utility model.

[0016] Figure 4 This is a front view of an embodiment of the present invention (with the cover removed).

[0017] Figure 5 This is a right view of an embodiment of the present invention (with the cover removed).

[0018] Figure 6 This is a left view of an embodiment of the present invention (with the cover removed).

[0019] Figure 7 This is a top view of an embodiment of the present invention (with the cover removed).

[0020] Figure 8 yes Figure 5 BB cross-sectional view.

[0021] Figure 9 yes Figure 5 AA sectional view.

[0022] Figure 10 yes Figure 9 A magnified view of section C.

[0023] Figure 11 yes Figure 7 DD sectional view.

[0024] Figure 12 yes Figure 3 A magnified view of section E in the middle.

[0025] Figure 13 This is a schematic diagram showing the positional changes of the ultrasonic probe during use in an embodiment of this utility model.

[0026] In the diagram: 1-Anti-slip rubber pad, 2-Base, 201-Internal thread G, 3-Leveling unit, 301-Height adjustment nut, 3011-External thread F, 3012-Smooth hole, 302-Screw, 4-Bracket, 401-Horizontal plate, 4011-Internal thread F, 402-Vertical plate, 403-Rib plate I, 404-Motor mounting plate, 405-Rib plate II, 406-Through hole, 5-Cover, 6-Lifting platform, 7-Motor, 8-Coupling, 9-Upper bearing seat, 10-Ball screw, 11-Screw nut, 12-Straight 13-Line guide rail, 14-Lower bearing housing, 15-Cleaning brush, 16-Coupled agent supply bottle, 17-Modular cap, 18-Cylinder, 19-Coupled agent extrusion end cap, 10-Plug, 11-Ultrasonic electroacoustic transducer T, 12-Ultrasonic electroacoustic transducer R, 13-Hardness sensor, 14-Mounting base III, 25-Servo cylinder III, 26-Leveling auxiliary bubble plate, 27-Mounting base II, 28-Servo cylinder II, 29-Mounting base I, 20-Servo cylinder I, 21-Probe mounting plate, 22-Slider. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0028] A detection device for diaphragm wall guide walls includes a base 2, a bracket 4, and a controller.

[0029] The base 2 is an aluminum plate used to place the entire device on the ground; in order to enhance the friction between the base 2 and the ground, an anti-slip rubber pad 1 is fixedly installed at the bottom of the base 2.

[0030] like Figure 4 As shown, the bracket 4 includes a horizontal plate 401 and a vertical plate 402 arranged in a T-shape. The horizontal plate 401 and the vertical plate 402 are perpendicular to each other. A motor mounting plate 404 is fixedly provided on the top of the vertical plate 402. A stiffening plate I 403 is provided between the vertical plate 402 and the motor mounting plate 404. A stiffening plate II 405 is provided between the horizontal plate 401 and the vertical plate 402.

[0031] The level plate 401 is located above the base 2 and is connected to the base 2 through four leveling units 3 distributed at the four corners, as follows: Figure 7 and Figure 11 As shown, the leveling unit 3 includes a height adjustment nut 301 and a screw 302. The outer circumference of the height adjustment nut 301 is provided with an external thread F3011, and the center is provided with a smooth hole 3012. The height adjustment nut 301 is screwed to the internal thread F4011 on the horizontal plate 401 through the external thread F3011. The bottom surface of the height adjustment nut 301 is in contact with the top surface of the base 2. The screw 302 passes through the smooth hole 3012 of the height adjustment nut 301 and is screwed to the internal thread G201 on the base 2. Tightening the screw 302 fixes the base 2 to the horizontal plate 401. A leveling auxiliary bubble tray 21 is fixedly provided at the center of the top surface of the horizontal plate 401 of the bracket 4.

[0032] The lifting platform 6 is linearly slidably connected to the vertical plate 402 in the up-down direction. The lifting of the lifting platform 6 is driven by the motor 7. Specifically, the slider 27 is fixedly connected to the lifting platform 6 and is slidably connected to the linear guide rail 12. The linear guide rail 12 is fixedly connected to the vertical plate 402. The lead screw nut 11 is fixedly connected to the lifting platform 6 and screwed to the ball screw 10. The upper and lower parts of the ball screw 10 are respectively rotatably connected to the upper bearing seat 9 and the lower bearing seat 13. Both the upper bearing seat 9 and the lower bearing seat 13 are fixedly connected to the vertical plate 402. The ball screw 10 is fixedly connected to the output shaft of the motor 7 through the coupling 8. The motor 7 is fixedly connected to the motor mounting plate 404.

[0033] Mounting base I 24 and mounting base II 22 are fixedly installed on the lifting platform 6. The cylinder body I of servo cylinder I 25 is fixedly connected to mounting base I 24, the probe mounting plate 26 is fixedly connected to the telescopic rod I of servo cylinder I 25, and the ultrasonic electroacoustic transducer T16 and ultrasonic electroacoustic transducer R17 are fixedly connected to the probe mounting plate 26. The cylinder body II of servo cylinder II 23 is fixedly connected to mounting base II 22, and the hardness sensor 18 is fixedly connected to the telescopic rod II of servo cylinder II 23. The telescopic directions of both the telescopic rod I of servo cylinder I 25 and the telescopic rod II of servo cylinder II 23 are horizontal, pointing towards the detection surface of the ground-connected wall guide wall. The vertical plate 402 has a through hole 406, which allows the ultrasonic electroacoustic transducer T16, ultrasonic electroacoustic transducer R17, and hardness sensor 18 to pass through, forming the detection area AR.

[0034] like Figure 5 , Figure 7 , Figure 9 and Figure 12 As shown, a cleaning brush 14 and a coupling agent supply bottle 15 are fixedly mounted on the vertical plate 402. The bristles of the cleaning brush 14 are made of silicone. The coupling agent supply bottle 15 includes a cylindrical body 1502, an extrusion end cap 1503, and a movable cap 1501. The cylindrical body 1502 is a cylinder made of transparent rigid material. The extrusion end cap 1503 is fixedly sealed at one end (O end) of the cylindrical body 1502. The extrusion end cap 1503 is provided with several extrusion holes, which are used to provide an outlet for the coupling agent that is squeezed out. The other end of the cylindrical body 1502... The end is open (i-end). The outer peripheral wall of the movable cover 1501 is slidably connected to the inner wall of the cylinder 1502. The movable cover 1501, the cylinder 1502, and the extrusion end cover 1503 together form a coupling agent receiving cavity. The movable cover 1501 has a feeding port, which is sealed with a plug 1504 that is easy to disassemble. The movable cover 1501 is fixedly connected to the telescopic rod III of the servo electric cylinder III 20. The cylinder III of the servo electric cylinder III 20 is fixedly connected to the mounting base III 19. The mounting base III 19 is fixedly connected to the horizontal plate 401. The extrusion end cover 1503 is located above the cleaning brush 14. The cleaning brush 14 is located above the detection area AR. The brush surfaces of the extrusion end cover 1503 and the cleaning brush 14 both face away from the vertical plate 402 and face the ultrasonic electroacoustic transducer T16 and the ultrasonic electroacoustic transducer R17.

[0035] The ultrasonic electroacoustic transducer T16, ultrasonic electroacoustic transducer R17 and hardness sensor 18 are all connected to the controller. The actions of motor 7, servo cylinder I 25, servo cylinder II 23 and servo cylinder III 20 are all controlled by the controller.

[0036] For dust prevention and aesthetic purposes, a cover 5 is also provided. The cover 5 is fixedly connected to the vertical plate 402 and is used to protect the vertical plate 402, the lifting platform 6, the motor 7, the servo cylinder I 25, the servo cylinder II 23, the ultrasonic electroacoustic transducer T16, the ultrasonic electroacoustic transducer R17 and the hardness sensor 18 in the inner cavity.

[0037] Setting a proximity switch to provide feedback on the zero position of the lifting platform 6 is common knowledge for those skilled in the art, therefore the proximity switch is not shown in the figure. When the lifting platform 6 is at the zero position, the ultrasonic-electroacoustic transducer T16 and the ultrasonic-electroacoustic transducer R17 are directly opposite the extrusion end cap 1503 of the coupling agent supply bottle 15.

[0038] Use of this embodiment:

[0039] Before use, check whether the amount of coupling agent in the coupling agent supply bottle 15 is sufficient. The coupling agent used is a high-viscosity coupling agent. If the amount of coupling agent is insufficient, manually control the servo cylinder III 20 to pull the telescopic rod III to the i end, remove the plug 1504, and feed an appropriate amount of coupling agent into the coupling agent receiving cavity through the feeding port. Then manually control the servo cylinder III 20 to push the telescopic rod III to slowly advance the movable cover 1501 to the O end until coupling agent is squeezed out of the extrusion hole on the extrusion end cover 1503, at which point the servo cylinder III 20 stops.

[0040] Includes the following steps:

[0041] (1) Place the anti-slip rubber pad 1 at the bottom of the base 2 on the ground at the top of the diaphragm wall guide wall, so that one side of the vertical plate 402 is suspended in the trench enclosed by the diaphragm wall guide wall. Observe the position of the bubble in the leveling auxiliary bubble plate 21 and adjust the four leveling units 3 to make the horizontal plate 401 horizontal. The adjustment method is as follows: first unscrew the screw 302, then use a wrench to turn the height adjustment nut 301 to adjust the height of the corner where the height adjustment nut 301 is located. After the horizontal plate 401 is adjusted to be horizontal, put the screw 302 back into the original position and tighten it.

[0042] (2) Raise the lifting platform 6 to the zero position. The controller controls the servo cylinder Ⅲ20 to extend the telescopic rod Ⅲ by a certain amount and squeeze out an appropriate amount of coupling agent (the coupling agent has a large viscosity and will not drip, and will remain suspended in place).

[0043] (3) The controller controls the servo cylinder I25 to extend the telescopic rod I to the "coupling agent application state" (which can be set by coordinates or fed back by proximity switch), so that the ultrasonic electroacoustic transducer T16 and ultrasonic electroacoustic transducer R17 can be coated with coupling agent, such as Figure 13 As shown in state J.

[0044] (4) The controller controls the servo cylinder I25 to retract the telescopic rod I to its initial state, such as... Figure 13 As shown in state K.

[0045] (5) The controller controls the motor 7 to move, driving the lifting platform 6 downward to the first detection coordinate (during the descent of the lifting platform 6, the ultrasonic electroacoustic transducer T16 and the ultrasonic electroacoustic transducer R17 and their coupling agent do not contact the cleaning brush 14), such as Figure 13 As shown in state L.

[0046] (6) The controller controls the servo cylinders I 25 and II 23 to move, pushing the ultrasonic electroacoustic transducer T16, ultrasonic electroacoustic transducer R17 and hardness sensor 18 to press the tested surface of the ground-connected guide wall with a set force, such as Figure 13 The state M is shown in the diagram.

[0047] (7) After the first detection coordinate is detected, the controller controls the servo cylinders I 25, II 23, and III 20 to move. The extension rod II of servo cylinder II 23 retracts to its initial position, and the extension rod I of servo cylinder I 25 retracts to the "coupling agent application state". Figure 13 As shown in state N, the servo electric cylinder Ⅲ20 causes the telescopic rod Ⅲ to extend a certain amount, squeezing out an appropriate amount of coupling agent.

[0048] (8) The controller controls the motor 7 to move, driving the lifting platform 6 upward to the zero position. During the movement of the lifting platform 6, the detection surfaces of the ultrasonic electroacoustic transducer T16 and the ultrasonic electroacoustic transducer R17 are first cleaned by the cleaning brush 14, and then the coupling agent is applied. Figure 13 The states P and J are shown in the diagram.

[0049] (9) Perform step (4), such as Figure 13 As shown in state K.

[0050] If the next detection coordinate is to be performed, then continue to repeat steps (4)-(8).

[0051] Once the test is complete, power off the equipment after it has processed the data, and promptly clean the testing surfaces of cleaning brush 14, ultrasonic transducer T16, and ultrasonic transducer R17 to keep them clean.

[0052] In the description of this utility model, terms such as "inner", "outer", "upper", "lower", "front", and "rear" that indicate orientation or positional relationship are used only for the convenience of describing this utility model, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

Claims

1. A detection device for diaphragm wall guide walls, characterized in that: Includes a base (2) and a support (4). The support (4) includes a horizontal plate (401) and a vertical plate (402) arranged in a T-shape. The horizontal plate (401) is located above the base (2) and is connected to the base (2) through several leveling units (3). The vertical plate (402) has a through hole (406) for the ultrasonic electroacoustic transducer T (16) and the ultrasonic electroacoustic transducer R (17) to pass through, forming the detection area AR. The lifting platform (6) is linearly slidably connected to the vertical plate (402) in the vertical direction. The lifting of the lifting platform (6) is driven by a motor (7). The cylinder body I of the servo electric cylinder I (25) is fixedly connected to the lifting platform (6). The telescopic rod I extends in the horizontal direction pointing towards the detection surface of the ground-connected wall guide wall; the probe mounting plate (26) is fixedly connected to the telescopic rod I, and the ultrasonic electroacoustic transducer T (16) and the ultrasonic electroacoustic transducer R (17) are fixedly connected to the probe mounting plate (26); the vertical plate (402) is provided with a cleaning brush (14) and a coupling agent supply bottle (15), the coupling agent supply bottle (15) includes a cylinder (1502) and an extrusion end cap (1503), the extrusion end cap (1503) is provided with several extrusion holes, and the extrusion of the coupling agent in the coupling agent supply bottle (15) is driven by a servo electric cylinder III (20); the extrusion end cap (1503) is located above the cleaning brush (14), and the cleaning brush (14) is located above the detection area AR.

2. The detection device for diaphragm wall guide walls according to claim 1, characterized in that: The bottom of the base (2) is fixedly provided with an anti-slip rubber pad (1).

3. The detection device for diaphragm wall guide walls according to claim 1, characterized in that: The leveling unit (3) includes a height adjustment nut (301) and a screw (302). The outer circumference of the height adjustment nut (301) is provided with an external thread F (3011) and the center is provided with a light hole (3012). The height adjustment nut (301) is screwed to the internal thread F (4011) on the horizontal plate (401) through the external thread F (3011). The bottom surface of the height adjustment nut (301) is in contact with the top surface of the base (2). The screw (302) passes through the light hole (3012) of the height adjustment nut (301) and is screwed to the internal thread G (201) on the base (2). Tightening the screw (302) fixes the base (2) to the horizontal plate (401).

4. The detection device for diaphragm wall guide walls according to claim 1, characterized in that: The coupling agent supply bottle (15) also includes a movable cap (1501). The cylinder (1502) is a cylinder made of hard material. The extrusion end cap (1503) is sealed on one end of the cylinder (1502). The other end of the cylinder (1502) is open. The outer peripheral wall of the movable cap (1501) is slidably connected to the inner wall of the cylinder (1502). The movable cap (1501), the cylinder (1502) and the extrusion end cap (1503) together form a coupling agent receiving cavity. The movable cap (1501) is provided with a feeding port. The feeding port is sealed with a plug (1504) that is easy to disassemble. The movable cap (1501) is fixedly connected to the telescopic rod III of the servo electric cylinder III (20). The cylinder III of the servo electric cylinder III (20) is fixedly connected to the bracket (4).

5. The detection device for diaphragm wall guide walls according to claim 1, characterized in that: A leveling auxiliary bubble tray (21) is fixed at the center of the top surface of the horizontal plate (401) of the bracket (4).

6. The detection device for diaphragm wall guide walls according to claim 1, characterized in that: The linear sliding connection between the lifting platform (6) and the vertical plate (402) is as follows: the slider (27) is fixedly connected to the lifting platform (6), the slider (27) is matched and slidably connected to the linear guide rail (12), the linear guide rail (12) is fixedly connected to the vertical plate (402); the screw nut (11) is fixedly connected to the lifting platform (6), the screw nut (11) is screwed to the ball screw (10), the upper and lower parts of the ball screw (10) are respectively rotatably connected to the upper bearing seat (9) and the lower bearing seat (13), the upper bearing seat (9) and the lower bearing seat (13) are both fixedly connected to the vertical plate (402), the ball screw (10) is fixedly connected to the output shaft of the motor (7) through the coupling (8), and the motor (7) is fixedly connected to the bracket (4).

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