Sludge thickness detection sampler for soft soil foundation composite pile foundation construction

Abstract

The utility model relates to the technical field of sludge sampling equipment, and discloses a sludge thickness detection sampler for soft soil foundation composite pile foundation construction, which comprises a mounting table, a driving assembly is arranged on the upper surface of the mounting table, a moving frame is arranged above the mounting table, an outer cylinder is inserted into the inner side of the moving frame, and the bottom end of the outer cylinder is fixedly connected with a conical head. According to the sludge thickness detection sampler for soft soil foundation composite pile foundation construction, the driving assembly is arranged to drive the moving frame to accurately move along the guide rail and can drive the outer cylinder to vertically move, so that vertical penetration of the outer cylinder and the conical head is ensured, interference to a soil layer is reduced, and the sampling efficiency is improved. Then the ultrasonic sensor and the pressure sensor are integrated at the bottom end of the outer cylinder to detect the resistance and thickness of the sludge in real time, and the lateral feeding design of the feeding port and the feeding groove is combined to compensate the limitation of the conical head feeding port on the sludge inlet amount, so that the error between the height of the sludge in the sampling pipe and the actual thickness is reduced, and the detection precision is remarkably improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of silt sampling equipment, in particular to a silt thickness detection sampler for soft soil foundation composite pile foundation construction. BACKGROUND

[0002] Soft soil foundation is widely used in engineering construction, and is characterized by low bearing capacity and high compressibility, which can easily lead to engineering settlement and uneven deformation. As an effective soft soil foundation treatment method, composite pile foundation is widely used in bridge, high-rise building and other engineering, and the design and construction quality of the composite pile foundation highly depends on the accurate detection of silt layer thickness.

[0003] The existing patent (publication number: CN221976499U) discloses a soft soil foundation silt thickness detection sampler. The installation table is provided with an installation groove on the upper surface, and the side surface of the installation table is fixedly connected with a motor. The output end of the motor is fixedly connected with a lead screw, and the side surface of the lead screw is threadedly connected with a moving block. The upper surface of the moving block is fixedly connected with a mounting bracket.

[0004] In the above-mentioned document, the bottom is provided with a conical block to reduce the resistance of the outer cylinder inserted into the silt. However, under the blockage of the conical block, the silt can only enter the sampling pipe from the side sampling port. However, only relying on the side wall opening to enter can cause insufficient sampling amount of silt, and the silt height in the sampling pipe cannot truly reflect the actual silt layer thickness, resulting in errors in the thickness detection of silt. Therefore, there are certain deficiencies in use. CONTENT OF THE UTILITY MODEL

[0005] In view of the deficiencies of the prior art, the application provides a silt thickness detection sampler for soft soil foundation composite pile foundation construction, which has the advantages of real-time detection of silt thickness, reduction of errors between silt height in the sampling pipe and actual thickness, and significant improvement of detection precision, and solves the problems proposed in the background art.

[0006] To achieve the above-mentioned purpose, the application provides the following technical scheme: a silt thickness detection sampler for soft soil foundation composite pile foundation construction, comprising an installation table, a driving assembly is arranged on the upper surface of the installation table, a moving frame is arranged above the installation table, an outer cylinder is inserted into the inner side of the moving frame, a conical head is fixedly connected to the bottom end of the outer cylinder, an inlet is formed in the middle part of the conical head, a plurality of inlet grooves are formed in the outer surface of the conical head in a circumferential array, an inlet is formed in the bottom end of the outer cylinder, a sampling pipe is inserted into the inner wall of the outer cylinder, a sealing assembly is arranged on the inner side of the bottom end of the sampling pipe, an ultrasonic sensor is fixedly embedded in the inner side of the bottom end of the outer cylinder, and a pressure sensor is fixedly embedded in the inner side of the bottom end of the outer cylinder. The ultrasonic sensor and the pressure sensor are electrically connected with an external controller.

[0007] Through the above scheme, the driving assembly is arranged to drive the moving frame to move along the guide rail accurately, and the outer cylinder can be driven to move vertically, so that the vertical penetration of the outer cylinder and the conical head is ensured, the interference on the soil layer is reduced, and then the ultrasonic sensor and the pressure sensor are integrated at the bottom end of the outer cylinder to detect the silt resistance and thickness in real time, combined with the lateral feeding design of the feeding inlet and the feeding groove, the limitation of the conical head feeding inlet on the silt entering amount is compensated, so that the error between the silt height in the sampling tube and the actual thickness is reduced, and the detection accuracy is significantly improved.

[0008] Further, the outer side of the sampling tube is fixedly connected with two connecting blocks, the outer surface of the outer cylinder is inserted with two latches, and the outer surface of the latch is inserted into the inner wall of the connecting block.

[0009] Through the above scheme, the insertion and fixing mode of the connecting block and the latch simplifies the installation and disassembly process of the sampling tube, ensures the coaxiality of the sampling tube and the outer cylinder, and prevents the detection error caused by sampling deviation.

[0010] Further, the upper surface of the mounting table is fixedly connected with a guide rail, and the outer surface of the moving frame is slidably connected to the inner side of the guide rail.

[0011] Through the above scheme, the structure of the guide rail restricts the movement track of the moving frame, so that the moving frame can stably drive the outer cylinder and the sampling tube to adjust horizontally.

[0012] Further, the driving assembly comprises a mounting frame fixedly connected to the upper surface of the mounting table, a first lead screw rotatably connected to the inner side of the mounting frame, a first servo motor fixedly embedded on one side of the mounting frame, and an output end of the first servo motor fixedly connected to one end of the first lead screw.

[0013] Through the above scheme, the first servo motor is arranged to drive the first lead screw to rotate, which can drive the moving frame to adjust the horizontal position, so as to accurately adjust the position of the outer cylinder and the sampling tube, and further improve the practicability of the device.

[0014] Further, the outer surface of the first lead screw is threadedly connected to the inner wall of the moving frame.

[0015] Through the above scheme, the thread connection between the first lead screw and the moving frame can enhance the driving stability.

[0016] Further, the driving assembly further comprises a mounting frame fixedly connected to the upper surface of the moving frame, a second lead screw rotatably connected to the outer surface of the mounting frame, and a bottom end of the second lead screw rotatably connected to the upper surface of the moving frame, a second servo motor fixedly embedded on the upper surface of the mounting frame, an output end of the second servo motor fixedly connected to one end of the second lead screw, and an outer surface of the second lead screw threadedly connected with a lifting plate.

[0017] The above scheme uses a second servo motor to drive the second lead screw to rotate, thereby adjusting the height of the lifting plate and enabling the lifting plate and outer cylinder to insert and sample the silt below.

[0018] Furthermore, the inner wall of the lifting plate is fixedly connected to the outer surface of the outer cylinder.

[0019] The above scheme ensures that the outer cylinder and the lifting plate are fixedly connected, so that the outer cylinder and the sampling tube move synchronously while the lifting plate moves vertically, thus ensuring that the outer cylinder and the sampling tube can stably detect the thickness of the silt at the designated location and take samples.

[0020] Furthermore, the sealing assembly includes a fixing plate fixedly connected to the inside of the sampling tube. Two symmetrical semi-circular baffles are hinged to the outer surface of the fixing plate. The outer dimensions of the two semi-circular baffles are adapted to the inner wall dimensions of the sampling tube. A vertical plate is fixedly connected to the upper surface of the fixing plate. Two springs are fixedly connected to the upper surfaces of the two semi-circular baffles, and one end of the spring is fixedly connected to the outer surface of the vertical plate.

[0021] Through the above scheme, the semi-circular baffle in the sealing assembly automatically closes under the action of the spring, forming a dynamic seal to prevent sludge leakage after sampling. At the same time, the hinge structure between the fixed plate and the vertical plate allows the semi-circular baffle to open and close adaptively with the sludge pressure, expanding the feed channel area.

[0022] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0023] This silt thickness detection sampler for composite pile foundation construction on soft soil foundations uses a drive assembly to move the mobile frame precisely along the guide rail, while simultaneously driving the outer cylinder to move vertically. This ensures the vertical penetration of the outer cylinder and the conical head, reducing interference with the soil layer. An ultrasonic sensor and a pressure sensor are integrated at the bottom of the outer cylinder to detect silt resistance and thickness in real time. Combined with the lateral feeding design of the inlet and feed trough, it compensates for the limitation imposed by the conical head inlet on the amount of silt entering, thereby reducing the error between the silt height and the actual thickness within the sampling tube and significantly improving detection accuracy. Attached Figure Description

[0024] Figure 1 This is a three-dimensional structural diagram of the entire application;

[0025] Figure 2 This is a three-dimensional structural diagram of the outer cylinder of this application;

[0026] Figure 3 This is a schematic diagram of the internal structure of the outer cylinder of this application;

[0027] Figure 4 This is a three-dimensional structural diagram of the driving component of this application;

[0028] Figure 5 Figure is a schematic view of the three-dimensional structure of the sealing assembly of the present application.

[0029] In the figure:

[0030] 1, mounting table; 2, drive assembly; 201, mounting frame; 202, first lead screw; 203, first servo motor; 204, mounting bracket; 205, second lead screw; 206, second servo motor; 206, second servo motor; 207, lifting plate; 3, moving frame; 4, outer cylinder; 5, conical head; 6, feed chute; 7, feed inlet; 8, sampling tube; 9, sealing assembly; 901, fixed plate; 902, semicircular baffle; 903, vertical plate; 904, spring; 10, ultrasonic sensor; 11, pressure sensor; 12, connecting block; 13, latch; 14, guide rail. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0032] Please refer to Figure 1 , Figure 2 and Figure 4The muck thickness detection sampler for soft soil foundation composite pile foundation construction in the embodiment comprises a mounting table 1, the upper surface of the mounting table 1 is provided with a driving assembly 2, the driving assembly 2 comprises a mounting frame 201 fixedly connected to the upper surface of the mounting table 1, the inner side of the mounting frame 201 is rotationally connected with a first lead screw 202, one side of the mounting frame 201 is fixedly embedded with a first servo motor 203, the output end of the first servo motor 203 is fixedly connected to one end of the first lead screw 202, the first servo motor 203 is arranged to drive the first lead screw 202 to rotate, so as to drive the moving frame 3 to adjust the horizontal position, thereby accurately adjusting the positions of the outer cylinder 4 and the sampling pipe 8, and further improving the practicability of the device, the outer surface of the first lead screw 202 is threadedly connected to the inner wall of the moving frame 3, the thread connection between the first lead screw 202 and the moving frame 3 can enhance the driving stability, the driving assembly 2 further comprises a mounting bracket 204 fixedly connected to the upper surface of the moving frame 3, the outer surface of the mounting bracket 204 is rotationally connected with a second lead screw 205, the bottom end of the second lead screw 205 is rotationally connected to the upper surface of the moving frame 3, the upper surface of the mounting bracket 204 is fixedly embedded with a second servo motor 206, the output end of the second servo motor 206 is fixedly connected to one end of the second lead screw 205, the outer surface of the second lead screw 205 is threadedly connected with a lifting plate 207, the second servo motor 206 is arranged to drive the second lead screw 205 to rotate, so as to adjust the height of the lifting plate 207, thereby driving the lifting plate 207 and the outer cylinder 4 to insert and sample the muck below, the inner wall of the lifting plate 207 is fixedly connected to the outer surface of the outer cylinder 4, the outer cylinder 4 and the lifting plate 207 are fixedly connected, which can ensure that the lifting plate 207 moves vertically while the outer cylinder 4 and the sampling pipe 8 move synchronously, and ensure that the outer cylinder 4 and the sampling pipe 8 stably detect the thickness of the muck at the specified position and sample the muck, the upper side of the mounting table 1 is provided with the moving frame 3, the inner side of the moving frame 3 is inserted with the outer cylinder 4, the bottom end of the outer cylinder 4 is fixedly connected with a conical head 5, the middle part of the conical head 5 is provided with an inlet, the outer surface of the conical head 5 is provided with a circumferential array of feeding grooves 6, and the bottom end of the outer cylinder 4 is provided with an inlet 7.

[0033] Please refer to Figure 1 , Figure 3 and Figure 5The inner wall of the outer cylinder 4 is inserted with a sampling pipe 8, the inner side of the bottom end of the sampling pipe 8 is provided with a sealing assembly 9, the sealing assembly 9 comprises a fixed plate 901 fixedly connected to the inner side of the sampling pipe 8, the outer surface of the fixed plate 901 is hingedly connected with two symmetrical semicircular baffles 902, the outer dimensions of the two semicircular baffles 902 are matched with the inner wall dimensions of the sampling pipe 8, the upper surface of the fixed plate 901 is fixedly connected with a vertical plate 903, the upper surfaces of the two semicircular baffles 902 are fixedly connected with two springs 904, and one end of the spring 904 is fixedly connected to the outer surface of the vertical plate 903, the semicircular baffles 902 in the sealing assembly 9 are automatically closed under the action of the spring 904 to form dynamic sealing to prevent sludge leakage after sampling, and the hinged structure of the fixed plate 901 and the vertical plate 903 enables the semicircular baffles 902 to be self-adapted to open and close according to the sludge pressure, thereby expanding the feeding channel area, the bottom end of the inner side of the outer cylinder 4 is fixedly embedded with an ultrasonic sensor 10, the bottom end of the inner side of the outer cylinder 4 is fixedly embedded with a pressure sensor 11, the ultrasonic sensor 10 and the pressure sensor 11 are electrically connected with an external controller, the driving assembly 2 is arranged to drive the moving frame 3 to move accurately along the guide rail 14, and the outer cylinder 4 can be driven to move vertically, so as to ensure that the outer cylinder 4 and the conical head 5 are vertically penetrated, the interference on the soil layer is reduced, then the ultrasonic sensor 10 and the pressure sensor 11 are integrated at the bottom end of the outer cylinder 4 to detect the sludge resistance and thickness in real time, the lateral feeding design of the feeding port 7 and the feeding groove 6 compensates for the limitation of the feeding port of the conical head 5 on the sludge entering amount, thereby reducing the error between the sludge height in the sampling pipe 8 and the actual thickness, and significantly improving the detection accuracy.

[0034] Please refer to Figure 1 , Figure 2 and Figure 3 , the outer side of the sampling pipe 8 is fixedly connected with two connecting blocks 12, the outer surface of the outer cylinder 4 is inserted with two insertion pins 13, and the outer surface of the insertion pin 13 is inserted into the inner wall of the connecting block 12, the insertion and fixing mode of the connecting block 12 and the insertion pin 13 simplifies the installation and disassembly process of the sampling pipe 8, ensures the coaxiality of the sampling pipe 8 and the outer cylinder 4, prevents detection errors caused by sampling deviation, and the upper surface of the mounting table 1 is fixedly connected with a guide rail 14, the outer surface of the moving frame 3 is slidingly connected to the inner side of the guide rail 14, the structure of the guide rail 14 restricts the movement track of the moving frame 3, and ensures that the moving frame 3 can stably drive the outer cylinder 4 and the sampling pipe 8 to horizontally adjust.

[0035] The silt thickness detection sampler for soft soil foundation composite pile foundation construction in the embodiment is provided with a driving assembly 2 for driving the moving frame 3 to move along the guide rail 14 accurately, and the outer cylinder 4 can be driven to move vertically, so that the vertical penetration of the outer cylinder 4 and the conical head 5 is ensured, the interference with the soil layer is reduced, and then the ultrasonic sensor 10 and the pressure sensor 11 are integrated at the bottom end of the outer cylinder 4 to detect the silt resistance and thickness in real time, the lateral feeding design of the feeding port 7 and the feeding groove 6 is combined to compensate for the limitation of the feeding port of the conical head 5 on the silt entering amount, so as to reduce the error between the silt height in the sampling tube 8 and the actual thickness, and the detection accuracy is significantly improved.

[0036] The working principle of the above embodiment is as follows: the driving assembly 2 drives the moving frame 3 to move horizontally along the guide rail 14 through the first servo motor 203 and the first lead screw 202 to adjust the positions of the outer cylinder 4 and the sampling tube 8, so that the specified sampling position can be accurately adjusted, then the second servo motor 206 and the second lead screw 205 are driven to drive the lifting plate 207 to move vertically, and at the same time, the outer cylinder 4 and the conical head 5 are penetrated into the soil layer, then the conical structure of the conical head 5 reduces the penetration resistance, and at the same time, the middle part of the conical head 5 can enter the silt, the feeding groove 6 and the feeding port 7 are combined to allow the silt to enter the inside of the sampling tube 8 from the side, so as to compensate for the limitation of the feeding port of the conical head 5 on the silt entering amount, thereby reducing the error between the silt height in the sampling tube 8 and the actual thickness, while the silt is entering, the ultrasonic sensor 10 emits ultrasonic signals in real time, the silt interface is identified through the reflected wave, the pressure sensor 11 monitors the change of the penetration resistance, and both of them collect data in real time to calculate the thickness by fusion, when the sampling is completed, the semicircular baffle 902 in the sealing assembly 9 is closed under the action of the spring 904 to prevent the sample from leaking, the driving assembly 2 reversely drives the moving frame 3 to lift up, the sampling tube 8 is fixed in the outer cylinder 4 through the connecting block 12 and the latch 13 to ensure the stability of the recovery process.

[0037] It should be noted that, in the present document, the terms such as first and second, etc., are merely used to differentiate one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Also, the terms "comprises", "comprising", or any other variations thereof, are intended to cover non-exclusive inclusions, so that a process, method, article, or device that includes a list of elements does not exclude other elements not explicitly listed, or other elements inherent to such a process, method, article, or device. Without more limitations, an element defined by the phrase "comprises a" does not exclude the presence of additional identical elements in the process, method, article, or device including the element.

[0038] While embodiments of the application have been shown and described, it is to be understood that the embodiments described are merely exemplary and that changes can be made in detail without departing from the principles and spirit of the application. The scope of the application is therefore defined by the appended claims and their equivalents.

Claims

1. A silt thickness detection sampler for composite pile foundation construction on soft soil foundation, comprising a mounting platform (1), characterized in that: The upper surface of the mounting platform (1) is provided with a drive assembly (2), and a moving frame (3) is provided above the mounting platform (1). An outer cylinder (4) is inserted into the inner side of the moving frame (3). A conical head (5) is fixedly connected to the bottom end of the outer cylinder (4). A feed inlet is opened in the middle of the conical head (5). A circular array of feed grooves (6) is opened on the outer surface of the conical head (5). A feed inlet (7) is opened at the bottom end of the outer cylinder (4). A sampling tube (8) is inserted into the inner wall of the outer cylinder (4). A sealing assembly (9) is provided on the inner side of the bottom end of the sampling tube (8). An ultrasonic sensor (10) is fixedly embedded on the inner side of the bottom end of the outer cylinder (4). A pressure sensor (11) is fixedly embedded on the inner side of the bottom end of the outer cylinder (4). The ultrasonic sensor (10) and the pressure sensor (11) are electrically connected to an external controller.

2. The silt thickness detection sampler for composite pile foundation construction on soft soil foundation according to claim 1, characterized in that: Two connecting blocks (12) are fixedly connected to the outside of the sampling tube (8), and two pins (13) are inserted into the outer surface of the outer cylinder (4), with the outer surface of the pins (13) inserted into the inner wall of the connecting block (12).

3. The silt thickness detection sampler for composite pile foundation construction on soft soil foundation according to claim 1, characterized in that: The upper surface of the mounting platform (1) is fixedly connected to a guide rail (14), and the outer surface of the movable frame (3) is slidably connected to the inner side of the guide rail (14).

4. The silt thickness detection sampler for composite pile foundation construction on soft soil foundation according to claim 1, characterized in that: The drive assembly (2) includes a mounting frame (201) fixedly connected to the upper surface of the mounting platform (1). A first lead screw (202) is rotatably connected to the inner side of the mounting frame (201). A first servo motor (203) is fixedly embedded on one side of the mounting frame (201). The output end of the first servo motor (203) is fixedly connected to one end of the first lead screw (202).

5. A silt thickness detection sampler for composite pile foundation construction on soft soil foundation according to claim 4, characterized in that: The outer surface of the first lead screw (202) is threaded to the inner wall of the movable frame (3).

6. A silt thickness detection sampler for composite pile foundation construction on soft soil foundation according to claim 4, characterized in that: The drive assembly (2) further includes a mounting bracket (204) fixedly connected to the upper surface of the movable frame (3). The outer surface of the mounting bracket (204) is rotatably connected to a second lead screw (205), and the bottom end of the second lead screw (205) is rotatably connected to the upper surface of the movable frame (3). The upper surface of the mounting bracket (204) is fixedly inlaid with a second servo motor (206). The output end of the second servo motor (206) is fixedly connected to one end of the second lead screw (205). The outer surface of the second lead screw (205) is threadedly connected to a lifting plate (207).

7. A silt thickness detection sampler for composite pile foundation construction on soft soil foundation as described in claim 6, characterized in that: The inner wall of the lifting plate (207) is fixedly connected to the outer surface of the outer cylinder (4).

8. The silt thickness detection sampler for composite pile foundation construction on soft soil foundation according to claim 1, characterized in that: The sealing assembly (9) includes a fixing plate (901) fixedly connected to the inner side of the sampling tube (8). Two symmetrical semi-circular baffles (902) are hinged to the outer surface of the fixing plate (901). The outer dimensions of the two semi-circular baffles (902) are adapted to the inner wall dimensions of the sampling tube (8). A vertical plate (903) is fixedly connected to the upper surface of the fixing plate (901). Two springs (904) are fixedly connected to the upper surfaces of the two semi-circular baffles (902), and one end of the spring (904) is fixedly connected to the outer surface of the vertical plate (903).

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