Riverway section size detection device

Abstract

The application belongs to the field of riverway detection equipment, and discloses a riverway section size detection device, which comprises a vehicle frame, a plurality of rollers fixed below the vehicle frame, a plurality of fixing devices arranged on the two sides of the upper portion of the vehicle frame, a placing device fixed at one end of the upper portion of the vehicle frame, a transmission device fixed on the upper portion of the vehicle frame, a clamping box fixed at one end of the transmission device, a standard section movably arranged in the transmission device, a starting section connected to one end of the standard section, a moving device movably arranged on the upper portion of the standard section and the starting section, and a measuring device movably arranged on one side of the moving device. The application solves the problems of low efficiency, poor precision, complicated operation and weak adaptability of the prior art riverway section size detection method and device, realizes rapid, accurate and efficient measurement of the riverway section size, meets the measurement requirements in different riverway environments, and is suitable for riverway detection.

Description

Technical Field

[0001] This invention relates to the field of river channel inspection equipment technology, specifically a river channel cross-sectional dimension inspection device. Background Technology

[0002] In many important fields related to rivers, such as water conservancy project construction, water resource management, and flood control and disaster reduction, the accurate measurement of river cross-sectional dimensions plays a crucial role. Accurately obtaining information on river cross-sectional dimensions provides key information for the planning and design of water conservancy projects, the rational allocation of water resources, and the assessment and prevention of flood risks.

[0003] Currently, there are various methods and equipment available for measuring the cross-sectional dimensions of river channels. However, these existing measurement methods generally have some problems that urgently need to be addressed.

[0004] Traditional manual surveying methods rely primarily on manual data collection using surveying tools on-site in river channels. This method not only requires a significant investment of manpower and time, resulting in extremely low surveying efficiency, but also makes the accuracy of the measurement results highly susceptible to human factors such as the surveyor's operating skills, experience, and working conditions, making it difficult to guarantee the stability and reliability of the measurement accuracy.

[0005] While some existing automated testing equipment has improved measurement efficiency and reduced manual intervention to some extent, it suffers from drawbacks such as complex structure and high cost. These devices typically consist of multiple complex mechanical components and electronic systems, resulting in high manufacturing and maintenance costs, which significantly limits their widespread application in practical engineering. Furthermore, these devices often lack sufficient adaptability to different terrains and river environments. For example, in areas where river widths vary considerably and frequently, the equipment may not be able to quickly adapt to diverse environments, leading to a significant impact on measurement speed.

[0006] In summary, existing methods and equipment for measuring river cross-section dimensions have many shortcomings in terms of efficiency, accuracy, cost, and adaptability, and cannot adequately meet the diverse and highly adaptable measurement needs in practical engineering. Therefore, developing a river cross-section dimension detection device that is simple in structure, easy to operate, highly adaptable, cost-effective, and can adapt to different river environments has significant practical significance and application value. Summary of the Invention

[0007] The present invention aims to provide a river channel cross-section size detection device to solve the problems of low efficiency, poor accuracy, complex operation and weak adaptability of existing river channel cross-section size detection methods and equipment, so as to realize the rapid, accurate and efficient measurement of river channel cross-section size and meet the measurement needs of different river channel environments.

[0008] To achieve the above objectives, the present invention provides the following technical solution: The technical solution provided by this invention is: a river channel cross-section size detection device, including a frame, rollers fixedly provided under the frame, fixing devices provided on both sides above the frame, a placement device fixedly provided at one end above the frame, a transmission device fixedly provided above the frame, a clamping box fixedly provided at one end of the transmission device, a standard section movably provided inside the transmission device, a starting section connected to one end of the standard section, a moving device movably provided above the standard section and the starting section, and a measuring device movably provided on one side of the moving device.

[0009] Furthermore, the fixing device includes a fixing shaft movably mounted on both sides of the frame. The surface of the fixing shaft is provided with a fixing plate. A fixing drill bit is symmetrically provided on one side of the fixing plate. The surface of the fixing drill bit is provided with threads. A horizontal plate is fixed below the fixing plate. The surface of the horizontal plate is symmetrically provided with fixing holes that are compatible with the fixing drill bit.

[0010] Furthermore, the placement device includes a placement box fixedly installed above the vehicle frame, a placement shaft is provided above the placement box, and a cover plate is provided on the surface of the placement shaft, the cover plate being adapted to the placement box.

[0011] Furthermore, the transmission device includes a transmission box fixedly installed above the frame, a transmission groove inside the transmission box, the transmission groove being adapted to the size of the standard section and the starting section, a pressure plate fixedly installed below the transmission groove, a transmission motor fixedly installed inside the transmission box, a transmission gear fixedly installed at the output end of the transmission motor, a main drive gear fixedly installed on one side of the transmission gear, a transmission belt adapted to the surface of the transmission gear, a driven gear adapted to the other end of the transmission belt, and an auxiliary drive gear fixedly installed on one side of the driven gear.

[0012] Furthermore, a telescopic plate is fixedly installed on the upper part of the inner wall of the clamping box, and telescopic clamping shafts are symmetrically arranged on the inner wall of the clamping box.

[0013] Furthermore, standard slide rails are symmetrically arranged above the standard section, a standard card plate is fixed at one end of the standard section, and a card slot is opened at the other end of the standard section. The standard card plate and the card slot are adapted to each other in size. Connecting columns are adapted to each other in the card slot and the standard card plate. Several standard card teeth are evenly arranged below the standard section.

[0014] Furthermore, a starting slide rail is symmetrically provided above the starting section, a starting plate is fixedly provided at one end of the starting section, the starting plate is adapted to the slot, a limiting plate is fixedly provided at the other end of the starting section, and several starting teeth are evenly provided below the starting section.

[0015] Furthermore, the movable device includes a movable plate movably placed above the standard section and the starting section. The movable plate is symmetrically provided with movable wheels below it. The movable wheels are adapted to the standard slide rail and the starting slide rail. A wiring pipe is fixedly provided on one side of the movable plate. Movable shafts are provided on both sides of the movable plate. Movable plates are fixedly provided on the surface of the movable shafts. A measuring groove is fixedly provided on one side of the movable plate. A displacement sensor is provided in the measuring groove.

[0016] Furthermore, the measuring device includes a measuring plate that is movably placed in the measuring groove, a drainage groove evenly distributed in the middle of the measuring plate, a measuring wheel below the measuring plate, and a safety plate fixed above the measuring plate, the safety plate being larger than the measuring groove.

[0017] The beneficial effects of this technical solution are: (1) The river channel cross-section size detection device of the present invention has a reasonable structural design and the various components work together to achieve efficient and accurate measurement of the river channel cross-section size. The device is firmly fixed in the measurement position by the fixing device, which effectively avoids shaking and displacement during the measurement process and greatly improves the measurement accuracy.

[0018] (2) The transmission device adopts a unique transmission structure, which can transmit the standard section and the starting section smoothly and quickly. It can also flexibly adjust the measurement length according to the actual width of the river channel, making it highly adaptable. At the same time, the clamping box further ensures the stability of the transmission process, ensuring that the standard section and the starting section will not loosen or fall off during the transmission process.

[0019] (3) The design of the moving device and the measuring device is ingenious. The moving plate can move freely on the standard section and the starting section. The moving speed and the fluctuation of the measuring plate are monitored in real time by the accelerometer and displacement sensor. The cross-sectional dimensions of the riverbed can be accurately measured. The design of the drainage channel effectively solves the influence of water accumulation on the measurement accuracy and improves the reliability of the measurement.

[0020] (4) The entire device is simple and convenient to operate. Operators only need to follow the operating steps to complete the measurement of the river cross-section size, which greatly reduces the labor intensity of operators and improves work efficiency. At the same time, the structure of the device is relatively simple, the cost is low, and it is easy to maintain and promote its application. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the moving structure of a river channel cross-section size detection device proposed in this invention; Figure 2 This is one of the structural schematic diagrams of a river channel cross-section size detection device proposed in this invention during use; Figure 3 This is the second schematic diagram of the structure of the river channel cross-section size detection device proposed in this invention during use; Figure 4 This is a schematic diagram of the cross-sectional structure of a river channel cross-sectional dimension detection device proposed in this invention during use; Figure 5 This is one of the standard section structural diagrams of a river channel cross-section size detection device proposed in this invention; Figure 6 This is the second schematic diagram of a standard section structure of a river channel cross-section size detection device proposed in this invention; Figure 7 This is one of the schematic diagrams of the starting section structure of a river channel cross-section size detection device proposed in this invention; Figure 8 This is the second schematic diagram of the starting section structure of a river channel cross-section size detection device proposed in this invention; Figure 9 This is a schematic diagram of the moving device structure of a river channel cross-section size detection device proposed in this invention.

[0022] The corresponding labels in the attached diagram are named as follows: 1. Frame; 2. Roller; 3. Fixing device; 4. Placement device; 5. Transmission device; 6. Standard section; 7. Starting section; 8. Moving device; 9. Measuring device; 10. Clamping box; 301. Fixed shaft; 302. Fixed plate; 303. Fixed drill bit; 304. Thread; 305. Horizontal plate; 306. Fixed hole; 401. Placement box; 402. Placement shaft; 403. Cover plate; 501. Transmission box; 502. Transmission groove; 503. Pressure plate; 504. Transmission motor; 505. Transmission gear; 506. Main drive gear; 507. 508. Driven gear; 509. Auxiliary gear; 601. Standard slide rail; 602. Standard clamping plate; 603. Slot; 604. Connecting column; 605. Standard clamping tooth; 701. Starting slide rail; 702. Starting clamping plate; 703. Limiting plate; 704. Starting clamping tooth; 801. Moving plate; 802. Moving wheel; 803. Connecting pipe; 804. Moving shaft; 805. Moving clamping plate; 806. Measuring groove; 901. Measuring plate; 902. Drainage groove; 903. Measuring wheel; 904. Safety plate; 1001. Telescopic cable plate; 1002. Telescopic clamping shaft. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] The specific implementation process is as follows: Example 1: Please see Figure 1-9The present invention provides a technical solution: a river channel cross-sectional dimension detection device, comprising a frame 1, with rollers 2 fixedly installed below the frame 1 to facilitate flexible movement of the device on riverbanks or designated measurement positions in different terrains. Fixing devices 3 are installed on both sides of the upper part of the frame 1. Each fixing device 3 includes a fixing shaft 301 movably mounted on both sides of the frame 1. Fixing plates 302 are mounted on the surface of the fixing shafts 301. Fixing drill bits 303 are symmetrically mounted on one side of each fixing plate 302. Threads 304 are installed on the surface of each fixing drill bit 303. This design allows the fixing drill bits 303 to more easily drill into the soil during rotation, providing stable fixing force. A horizontal plate 305 is fixedly installed below the fixing plate 302. Fixing holes 306 are symmetrically formed on the surface of the horizontal plate 305. 06 is compatible with the fixed drill bit 303, further enhancing the fixing effect and ensuring that the device will not shift during measurement. This fixing device 3 ensures that the device remains stable during measurement and is not affected by external factors. A placement device 4 is fixedly installed on one end of the upper part of the frame 1. The placement device 4 includes a placement box 401 fixedly installed on the upper part of the frame 1. A placement shaft 402 is installed on the upper part of the placement box 401. A cover plate 403 is installed on the surface of the placement shaft 402. The cover plate 403 is compatible with the placement box 401. By rotating the placement shaft 402, the cover plate 403 can be easily opened or closed, which is convenient for operators to store and take out components such as the starting section 7 and the standard section 6. It is used to store various tools and components required for measurement and is easy to access. The transmission device 5 includes a transmission box 501 fixedly installed above the frame 1. A transmission groove 502 is installed inside the transmission box 501. The transmission groove 502 is adapted to the size of the standard section 6 and the starting section 7, providing a stable channel for the transmission of the standard section 6 and the starting section 7. A pressure plate 503 is fixedly installed below the transmission groove 502 to prevent the standard section 6 and the starting section 7 from shaking or shifting during transmission, ensuring transmission accuracy. A transmission motor 504 is fixedly installed inside the transmission box 501. A transmission gear 505 is fixedly installed at the output end of the transmission motor 504. A main drive gear 506 is fixedly installed on one side of the transmission gear 505. A transmission belt 507 is fitted onto the surface of the transmission gear 505, and a driven gear 507 is fitted onto the other end of the transmission belt 507. 8. An auxiliary transmission gear 509 is fixedly installed on one side of the driven gear 508. Through this transmission structure, the transmission motor 504 can drive the main transmission gear 506 and the auxiliary transmission gear 509 to rotate synchronously, realizing the smooth transmission of the standard section 6 and the starting section 7. A clamping box 10 is fixedly installed at one end of the transmission device 5. A telescopic cable plate 1001 is fixedly installed on the upper inner wall of the clamping box 10. The telescopic cable plate 1001 is a telescopic cable reel that can expand and contract according to the movement of the moving plate 801, so as to facilitate power supply to the moving plate 801 and transmission of measurement data. Telescopic clamping shafts 1002 are symmetrically installed on the inner wall of the clamping box 10 to firmly clamp the ends of the standard section 6 or the starting section 7, ensuring the stability of the standard section 6 and the starting section 7 during transmission.To prevent loosening or detachment, a standard section 6 is movably installed inside the transmission device 5. Standard slide rails 601 are symmetrically installed above the standard section 6, providing guidance for the movement of the moving device 8 and enabling it to move smoothly along the standard slide rails 601. A standard clamping plate 602 is fixedly installed at one end of the standard section 6, and a slot 603 is provided at the other end. The standard clamping plate 602 and the slot 603 are sized to fit together. Connecting posts 604 are fitted inside the slot 603 and the standard clamping plate 602, allowing multiple standard sections 6 to be connected sequentially to form the required length. Several standard teeth 605 are evenly installed below the standard section 6, and these standard teeth 605 mesh with the main drive gear 506 and auxiliary drive gear 509 in the transmission device 5. The standard section 6 is connected to a starting section 7 at one end. A starting slide rail 701 is symmetrically installed above the starting section 7, providing guidance for the movement of the moving device 8. A starting clamping plate 702 is fixedly installed at one end of the starting section 7, which matches the clamping slot 603 of the standard section 6 for easy connection. A limiting plate 703 is fixedly installed at the other end of the starting section 7 to prevent excessive movement during transmission and ensure the accurate positioning of the starting section 7. Several starting clamping teeth 704 are evenly installed below the starting section 7, cooperating with the main drive gear 506 and auxiliary drive gear 509 in the transmission device 5 to realize the transmission of the starting section 7. The moving device 8 is movably installed above the standard section 6 and the starting section 7. The moving device 8 includes a moving plate 801 movably positioned above the standard section 6 and the starting section 7. Moving wheels 802 are symmetrically mounted below the moving plate 801, and the moving wheels 802 are adapted to the standard slide rail 601 and the starting slide rail 701, allowing the moving plate 801 to move freely and smoothly on the standard section 6 and the starting section 7. A wiring conduit 803 is fixedly mounted on one side of the moving plate 801 for connecting the power connector of the telescopic cable plate 1001, enabling power supply to the moving plate 801 and transmission of measurement data. Moving shafts 804 are mounted on both sides of the moving plate 801, and moving clamps 805 are fixedly mounted on the surface of the moving shafts 804. A measuring groove 806 is fixedly mounted on one side of the moving clamp 805, and a displacement sensor is installed inside the measuring groove 806 for accurate measurement of movement. The displacement of plate 801 provides accurate data support for measuring the cross-sectional dimensions of the river channel. A measuring device 9 is movably mounted on one side of the moving device 8. The measuring device 9 includes a measuring plate 901 movably placed within a measuring groove 806. A drainage groove 902 is evenly distributed in the middle of the measuring plate 901 to effectively prevent water accumulation from affecting measurement accuracy during the measurement process. A measuring wheel 903 is installed below the measuring plate 901, contacting the bottom of the riverbed. The rolling of the measuring wheel 903 allows for real-time measurement of changes in riverbed height. A safety plate 904 is fixedly installed above the measuring plate 901. The safety plate 904 is larger than the measuring groove 806 to prevent the measuring plate 901 from detaching from the measuring groove 806, ensuring the stability and reliability of the measurement process. First, the operator pushes the device and uses the rollers 2 under the frame 1 to move the device to the riverbed to be measured. After reaching the designated position, the fixed shaft 301 is rotated. The rotation of the fixed shaft 301 drives the fixed plate 302 to rotate synchronously. Then, by operating the control device, which can be a control panel integrated inside the device or a handheld control terminal connected wirelessly, the fixed drill bit 303 is controlled to rotate downward along the fixed hole 306 and gradually penetrate into the soil with the threads 304 on its surface. As the fixed drill bit 303 continues to penetrate, the device is firmly fixed in the measurement position to ensure that it will not move during subsequent measurement. After the device is fixed, the operator rotates the placement shaft 402, opens the cover plate 403 of the placement box 401, takes out the starting section 7 from the placement box 401, and slowly inserts the end of the starting section 7 with the limit plate 703 into the transmission groove 502. Then, the transmission motor 504 is started by the control device. The transmission motor 504 drives the transmission gear 505 to rotate. The transmission gear 505 drives the driven gear 508 to rotate through the transmission belt 507, thereby making the main transmission gear 506 and the auxiliary transmission gear 509 run synchronously. The main transmission gear 506 and the auxiliary transmission gear 509 contact the starting clamping teeth 704 below the starting section 7, and smoothly transmit the starting section 7 along the transmission groove 502. When the starting section 7 is transmitted to the appropriate position, the telescopic clamping shaft 1002 on the inner wall of the clamping box 10 extends and firmly clamps the end of the starting section 7 to ensure that the starting section 7 remains stable in subsequent operations. Next, the operator takes out several standard sections 6 from the placement box 401, aligns the end of the first standard section 6 with the slot 603 with the starting plate 702 of the starting section 7, and then inserts the connecting post 604 to firmly connect the standard section 6 and the starting section 7 together. After the connection is completed, the transmission motor 504 is started again through the control device. The main transmission gear 506 and the auxiliary transmission gear 509 contact the standard slot 605 below the standard section 6, and the connected standard section 6 is transmitted and moved along the transmission groove 502. In the same way, the standard sections 6 are connected and transmitted repeatedly to gradually increase the length of the entire measurement structure so that it can cross the river surface and meet the measurement requirements of different river widths. After the standard section 6 and the starting section 7 are connected and transferred to the appropriate position, the moving plate 801 is placed on top of the standard section 6, so that the moving wheel 802 under the moving plate 801 falls accurately into the standard slide rail 601. At this time, the moving plate 801 can move freely on the standard section 6. Then, the power connector in the telescopic plate 1001 is connected to the wiring pipe 803 on one side of the moving plate 801 to provide power support for the moving plate 801 and establish a transmission channel for measurement data. Next, place the measuring plate 901 in the measuring groove 806 of the moving plate 801, ensuring that the measuring wheel 903 under the measuring plate 901 is in full contact with the bottom of the riverbed. When placing the measuring plate 901, be careful to keep the measuring plate 901 horizontal to ensure the accuracy of the measurement. After installation, calibrate and adjust the accelerometer and displacement sensor through the control device to ensure that they can accurately measure the moving speed of the moving plate 801 and the undulation of the measuring plate 901. After debugging, the operator starts the movement of the moving plate 801 through the control device. The accelerometer monitors the moving speed of the moving plate 801 in real time and transmits the speed data to the control device. As the moving plate 801 moves, the measuring plate 901 also moves. Since the riverbed surface may have undulations, the measuring plate 901 will adjust up and down according to the shape of the riverbed. At this time, the displacement sensor in the measuring tank 806 will accurately monitor the undulations of the measuring plate 901 and transmit this data to the control device in real time. The control device reduces the scale of the river channel cross-section according to the data transmitted by the accelerometer and displacement sensor, and draws a line diagram of the river channel cross-section. By analyzing and processing the line diagram, the operator can accurately obtain the dimensional information of the river channel cross-section, including the width, depth and undulation of the riverbed. During the measurement process, if more detailed measurement of a specific area is required, the moving speed and position of the moving plate 801 can be adjusted by the control device to achieve accurate measurement of that area. After the measurement is completed, the operator first stops the movement of the moving plate 801 through the control device, then pulls the power connector of the telescopic plate 1001 out of the wiring pipe 803, then takes the measuring plate 901 out of the measuring slot 806 and puts it into the placement box 401. Subsequently, the operator starts the reverse rotation of the transmission motor 504 through the control device to retract the standard section 6 and the starting section 7 into the placement box 401 in sequence. During the retraction process, the telescopic clamping shaft 1002 of the clamping box 10 releases the clamp on the standard section 6 and the starting section 7 to ensure that they can be retracted smoothly. After the standard section 6 and the starting section 7 are retracted, turn off the transmission motor 504, rotate the placement shaft 402, close the cover plate 403 of the placement box 401, and finally, reverse the fixed drill bit 303 by operating the control device to remove the fixed drill bit 303 from the soil. The operator pushes the device and uses the rollers 2 to move the device to the designated storage location for proper storage for the next use.

[0025] The above descriptions are merely embodiments of the present invention, and common knowledge regarding specific technical solutions or characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the technical solutions of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A river cross-section size detection device comprising a vehicle frame (1), characterized in that: Rollers (2) are fixedly provided below the frame (1), fixing devices (3) are provided on both sides above the frame (1), a placement device (4) is fixedly provided at one end above the frame (1), a transmission device (5) is fixedly provided above the frame (1), a clamping box (10) is fixedly provided at one end of the transmission device (5), a standard section (6) is movably provided inside the transmission device (5), a starting section (7) is connected at one end of the standard section (6), a moving device (8) is movably provided above the standard section (6) and the starting section (7), and a measuring device (9) is movably provided on one side of the moving device (8). The transmission device (5) includes a transmission box (501) fixedly installed above the frame (1). The transmission box (501) is provided with a transmission groove (502). The transmission groove (502) is adapted to the size of the standard section (6) and the starting section (7). A pressure plate (503) is fixedly provided below the transmission groove (502). A transmission motor (504) is fixedly provided inside the transmission box (501). A transmission gear (505) is fixedly provided at the output end of the transmission motor (504). A main drive gear (506) is fixedly provided on one side of the transmission gear (505). A transmission belt (507) is adapted to the surface of the transmission gear (505). A driven gear (508) is adapted to the other end of the transmission belt (507). An auxiliary drive gear (509) is fixedly provided on one side of the driven gear (508). The standard section (6) is symmetrically provided with standard slide rails (601) on the top. A standard card plate (602) is fixedly provided at one end of the standard section (6). A card slot (603) is provided at the other end of the standard section (6). The standard card plate (602) and the card slot (603) are adapted to each other in size. A connecting post (604) is adapted to be provided in the card slot (603) and the standard card plate (602). Several standard card teeth (605) are evenly provided below the standard section (6). The starting section (7) is symmetrically provided with a starting slide rail (701) above it. A starting plate (702) is fixedly provided at one end of the starting section (7). The starting plate (702) is adapted to the slot (603). A limiting plate (703) is fixedly provided at the other end of the starting section (7). Several starting teeth (704) are evenly provided below the starting section (7). The moving device (8) includes a moving plate (801) movably placed above the standard section (6) and the starting section (7). The moving plate (801) is symmetrically provided with moving wheels (802) below it. The moving wheels (802) are adapted to the standard slide rail (601) and the starting slide rail (701). A wiring tube (803) is fixedly provided on one side of the moving plate (801). Moving shafts (804) are provided on both sides of the moving plate (801). Moving plates (805) are fixedly provided on the surface of the moving shafts (804). A measuring groove (806) is fixedly provided on one side of the moving plates (805). A displacement sensor is provided in the measuring groove (806). The measuring device (9) includes a measuring plate (901) that is movably placed in the measuring groove (806). A drainage groove (902) is evenly provided in the middle of the measuring plate (901). A measuring wheel (903) is provided below the measuring plate (901). A safety plate (904) is fixedly provided above the measuring plate (901). The safety plate (904) is larger than the measuring groove (806).

2. The river channel cross-sectional dimension detection device according to claim 1, characterized in that: The fixing device (3) includes a fixing shaft (301) movably installed on both sides of the frame (1). The surface of the fixing shaft (301) is provided with a fixing plate (302). A fixing drill bit (303) is symmetrically provided on one side of the fixing plate (302). The surface of the fixing drill bit (303) is provided with a thread (304). A horizontal plate (305) is fixedly provided below the fixing plate (302). The surface of the horizontal plate (305) is symmetrically provided with fixing holes (306). The fixing holes (306) are adapted to the fixing drill bit (303).

3. The river channel cross-sectional dimension detection device according to claim 1, characterized in that: The placement device (4) includes a placement box (401) fixedly installed above the frame (1), a placement shaft (402) is provided above the placement box (401), and a cover plate (403) is provided on the surface of the placement shaft (402), the cover plate (403) being adapted to the placement box (401).

4. The river channel cross-sectional dimension detection device according to claim 1, characterized in that: The clamping box (10) is fixedly provided with a telescopic cable plate (1001) on the upper part of the inner wall, and the clamping box (10) is symmetrically provided with telescopic clamping shafts (1002) on the inner wall.

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