A river width measuring device for water conservancy projects

Abstract

The invention provides a river width measuring device for water conservancy projects, belonging to the technical field of river width measurement. It comprises a handheld guide, on which a measuring part is installed; the measuring part is used to measure the width of the river; a shallow water prompting part is installed on the measuring part; the shallow water prompting part is used to indicate the shallow water area; a fixed point safety part is installed on the handheld guide; the fixed point safety part is used to improve the accuracy of the positioning point; and a probe part is installed on the handheld guide. By setting a shallow water prompting part, the present invention can cooperate with the measuring part to perform rapid fixed-point measurement of the river width, which can be more suitable for shallow-shoal-like rivers with low slopes, and can facilitate staff to quickly identify the edge of the river; so as to solve the problem that the existing river width measuring equipment for water conservancy projects is not convenient for safety detection in shallow water areas, and it is not convenient for staff to accurately observe the wading area in areas with weeds and the like.

Description

Technical Field

[0001] The present invention relates to the technical field of river width measurement, and in particular to a river width measurement device used in water conservancy projects. Background Art

[0002] In actual water conservancy project repair and other work, the width of the river channel directly affects the flow capacity. Accurate width measurement can determine the maximum water-flowing cross-section data and provide key parameters for flood control project design. For example, in the Kaokou River section, a too narrow river channel will lead to embankment collapse. Width measurement can guide the implementation of widening projects, lower the water level and improve flood discharge efficiency.

[0003] At present, the river width measurement equipment of water conservancy projects mainly uses manual handheld RTK measuring instruments to measure the width. Manual handheld testing at the water's edge is unsafe, and it is not convenient for manual rapid mapping on both sides of the river. The mapping efficiency is low, and it is also not convenient for insurance detection in shallow water areas. The method of manually observing the wading width of the river with the naked eye is not accurate enough, and it is not convenient to quickly locate the edge of the river and control the accuracy of the positioning value. At the same time, it is not convenient for workers to accurately observe the wading area under the weeds in areas with weeds, and it is not convenient to assist workers in measuring the river width. Therefore, the present application provides a river width measurement device for water conservancy projects to meet the needs. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a river width measuring device for water conservancy projects to solve the problem that the existing river width measuring equipment for water conservancy projects is not convenient for safety detection in shallow water areas, and areas with weeds and the like are not convenient for staff to accurately observe the wading areas.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A river channel width measuring device for water conservancy projects, comprising a handheld guide, on which a measuring part is installed; the measuring part is used to measure the river channel width; a shallow water prompting part is installed on the measuring part; the shallow water prompting part is used to indicate a shallow water area; a fixed point safety part is installed on the handheld guide; the fixed point safety part is used to improve the positioning point accuracy; a probe rod is installed on the handheld guide; the probe rod is used to reduce interference from grass; two weeding parts are installed at the bottom of the handheld guide; the two weeding parts are used to assist in weeding; the handheld guide comprises: a counterweight connecting plate and a traction rope, two traction ropes are fixedly installed above the counterweight connecting plate, and the two traction ropes are connected to the middle of the counterweight connecting plate.

[0007] Optionally, the handheld guide also includes a water surface float fixedly installed at the bottom of the counterweight connecting plate; handheld rods are fixedly installed at both ends of the two traction ropes; and the two handheld rods are used for handholding.

[0008] Optionally, the measuring part includes a measuring mounting block fixedly mounted on the counterweight connecting plate; an RTK measuring instrument is fixedly mounted on the measuring mounting block; the measuring mounting block is located in the middle of the counterweight connecting plate; a ground switch is fixedly mounted on the side of the measuring mounting block; the ground switch is used to test whether the water surface float is attached to the shore; and the RTK measuring instrument is used to measure the width of the river channel.

[0009] Optionally, the shallow water reminder includes a lifting sleeve that is slidably sleeved on the measuring mounting block; a spring is sleeved on the measuring mounting block; the spring sleeved on the measuring mounting block is connected between the lifting sleeve and the measuring mounting block; a positioning block is fixedly installed on the bottom of the lifting sleeve; four power-on columns are fixedly installed on the positioning block; the four power-on columns are grouped in pairs; the power-on columns are used to detect shallow water areas.

[0010] Optionally, the fixed-point safety component includes a handbook mounting shell fixedly mounted on the hand-held rod on the front side; a handbook is fixedly mounted on the handbook mounting shell; a torsion spring shaft is rotatably mounted on the handbook mounting shell; a torsion spring is sleeved on the torsion spring shaft, and the torsion spring on the torsion spring shaft is connected between the torsion spring shaft and the handbook mounting shell; a cover plate is fixedly mounted on the torsion spring shaft; the cover plate is made of iron metal; a row of indicator lights are fixedly mounted on the cover plate, and the light colors of each row of indicator lights are different; the power column and the ground switch are electrically connected to the indicator lights respectively.

[0011] Optionally, the fixed-point safety component further comprises an electromagnet fixedly mounted on the handheld controller mounting shell; the electromagnet magnetically attracts a cover plate; and the cover plate is used to shield the handheld controller.

[0012] Optionally, the probe rod component includes an electric telescopic rod fixedly mounted on a counterweight connecting plate; a propulsion shell is slidably sleeved on the output shaft of the electric telescopic rod; a lifting float is slidably sleeved inside the propulsion shell; a water wading switch is fixedly mounted on the inside of the propulsion shell; the end of the water wading switch is attached to the lifting float; the water wading switch is electrically connected to an indicator light.

[0013] Optionally, the probe rod also includes a pressure switch fixedly mounted on the output shaft of the electric telescopic rod; the end of the pressure switch is squeezed and fitted on the inner side of the propulsion shell; the pressure switch is electrically connected to the indicator light; the end of the propulsion shell is a sloped structure; the propulsion shell passes through the counterweight connecting plate and the water surface float.

[0014] Optionally, the probe member further includes a circle of water leakage grooves provided on the propulsion shell; the water leakage grooves are used for passing water; and the water leakage grooves are connected to the inner side of the propulsion shell.

[0015] Optionally, the weeding component includes a driving motor fixedly mounted on a counterweight connecting plate; a rotary cutting impeller is fixedly mounted on an output shaft of the driving motor; the rotary cutting impeller is used for rotary cutting weeds; and the driving motor passes through a water surface float.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects:

[0017] In the above scheme, by setting up a shallow water prompt, the surveying department can cooperate with the surveying department to carry out rapid fixed-point measurement of the river width, which is more suitable for shallow rivers with low slopes. It can facilitate staff to quickly identify the edge of the river, ensure that the measuring point is at the edge of the water area, and ensure the accuracy of the measurement. Staff can flexibly move the handheld measurement point and measure directly at each point on both sides of the river. There is no need for staff to survey and map at the water's edge, which is safer. The use of fixed-point safety parts can be used for insurance protection, which can prevent staff from illegally operating the handbook and ensure that in actual measurement work, the RTK surveying instrument must be attached to the shore before normal measurement work can be carried out. Otherwise, the handbook cannot be operated normally, which can improve the measurement accuracy of this structure.

[0018] By setting up a weeding piece, auxiliary weeding work can be carried out, the quality of the measurement area can be improved, and the interference of weeds can be reduced. The use of the probe rod piece can facilitate the staff to measure the width of the river on the bank where weeds exist, which can improve the detection accuracy of this structure. This structure can facilitate wading detection work under the weeds to avoid weeds interfering with the judgment of the staff and mistakenly thinking that there is no river water under the weeds. The buoyancy test can be used while the water level is tested to perform bottom detection, which can facilitate the staff to control the depth of the lowering propulsion shell to prevent weeds from supporting the propulsion of shallow water prompt pieces. At this time, under the interference of weeds, the powered column cannot perform accurate wading detection, causing data interference. At the same time, the way the probe rod piece performs wading detection can facilitate the staff to accurately judge the weeding area and avoid the weeding area of the weeding piece being too large, affecting the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable one skilled in the art to make and use the invention.

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of a river width measurement device used in water conservancy projects;

[0021] Figure 2 This is a cross-sectional view of the internal structure of a river width measuring device used in water conservancy projects;

[0022] Figure 3 This is a schematic diagram of the bottom structure of a river width measurement device used in water conservancy projects;

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the handheld guide;

[0024] Figure 5 This is a schematic diagram of the three-dimensional structure of the measurement unit;

[0025] Figure 6 for Figure 1 A magnified view of the structure of the middle C region;

[0026] Figure 7 Schematic diagram of the three-dimensional structure of the probe rod;

[0027] Figure 8 for Figure 2 A magnified view of the structure of the middle D region;

[0028] Figure 9 Schematic diagram of the installation position of the measurement installation block;

[0029] Figure 10 This is a schematic diagram of the installation position of the floor switch.

[0030] Reference numerals:

[0031] 1. Handheld guide; 101. Counterweight connection plate; 102. Towing rope; 103. Water surface float; 104. Handheld rod; 2. Measuring unit; 201. Measuring mounting block; 202. RTK measuring instrument; 203. Ground switch; 3. Shallow water indicator; 301. Lifting sleeve; 302. In-position block; 303. Power column; 4. Fixed-point safety component; 401. Handheld controller mounting shell; 4011. Torsion spring shaft; 402. Cover plate; 403. Indicator light; 404. Electromagnet; 5. Probe rod; 501. Electric telescopic rod; 502. Propulsion shell; 5021. Leakage trough; 503. Lifting float; 504. Wading switch; 505. Pressure switch; 6. Weeding unit; 601. Drive motor; 602. Peeler.

[0032] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0033] The following describes in detail a river channel width measurement device for water conservancy projects provided by the present invention, with reference to the accompanying drawings and specific embodiments. It is also noted that, for the sake of completeness, the following embodiments are best and preferred embodiments, and those skilled in the art may employ alternative implementations for known technologies. Furthermore, the accompanying drawings are intended only to provide a more detailed description of the embodiments and are not intended to limit the present invention.

[0034] It should be noted that references in the specification to "one embodiment," "an embodiment," "exemplary embodiments," "some embodiments," etc. indicate that the described embodiments may include specific features, structures, or characteristics, but not necessarily every embodiment will include such specific features, structures, or characteristics. Furthermore, when specific features, structures, or characteristics are described in conjunction with an embodiment, it is within the knowledge of persons skilled in the relevant art to implement such features, structures, or characteristics in conjunction with other embodiments (whether or not explicitly described).

[0035] In general, terms can be understood, at least in part, from their use in context. For example, depending at least in part on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending at least in part on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0036] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” means not only “directly on” something but also includes the meaning of being “on” something with intervening features or layers, and “on” or “above” means not only “on” or “above” something but also includes the meaning of being “on” or “above” something with no intervening features or layers.

[0037] Additionally, spatially relative terms such as "below," "beneath," "lower," "above," and "upper" may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as illustrated in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein should be similarly interpreted accordingly.

[0038] like Figures 1 to 10As shown, an embodiment of the present invention provides a river width measuring device for water conservancy projects, including a handheld guide 1, on which a measuring part 2 is installed; the measuring part 2 is used to measure the width of the river; a shallow water prompting part 3 is installed on the measuring part 2; the shallow water prompting part 3 is used to prompt the shallow water area; a fixed point safety part 4 is installed on the handheld guide 1; the fixed point safety part 4 is used to improve the positioning point accuracy; a probe rod part 5 is installed on the handheld guide 1; the probe rod part 5 is used to reduce the interference of grass; two weeding parts 6 are installed at the bottom of the handheld guide 1; the two weeding parts 6 are used to assist in weeding; the handheld guide 1 includes: a counterweight connecting plate 101 and a traction rope 102, two traction ropes 102 are fixedly installed above the counterweight connecting plate 101, and the two traction ropes 102 are connected to the middle of the counterweight connecting plate 101.

[0039] like Figure 4 and Figure 5 As shown, the handheld guide 1 also includes a water surface float 103 fixedly mounted on the bottom of the counterweight connection plate 101; two handheld rods 104 are fixedly mounted at both ends of the two traction ropes 102; the two handheld rods 104 are used for handholding; the measuring part 2 includes a measuring mounting block 201 fixedly mounted on the counterweight connection plate 101; an RTK measuring instrument 202 is fixedly mounted on the measuring mounting block 201; the measuring mounting block 201 is located in the middle of the counterweight connection plate 101; a ground switch 203 is fixedly mounted on the side of the measuring mounting block 201; and a ground contact switch 203 is fixedly mounted on the side of the measuring mounting block 201. The switch 203 is used to test the water surface. The floating block 103 is attached to the shore. The RTK measuring instrument 202 is used to measure the width of the river. The shallow water prompting member 3 includes a lifting sleeve 301 that is slidably sleeved on the measuring mounting block 201. The measuring mounting block 201 is sleeved with a spring. The spring sleeved on the measuring mounting block 201 is connected between the lifting sleeve 301 and the measuring mounting block 201. The bottom of the lifting sleeve 301 is fixedly mounted with a positioning block 302. The positioning block 302 is fixedly mounted with four power posts 303. The four power posts 303 are two-by-two. The energized column 303 is used to detect shallow water areas. The shallow water prompting piece 3 can be used in conjunction with the measuring part 2 to quickly and precisely measure the width of the river channel. It is more suitable for shallow rivers with low slopes, which can facilitate staff to quickly identify the edge of the river channel. It can ensure that the measuring point is at the edge of the water area, thereby ensuring the accuracy of the measurement. At the same time, with the use of the handheld guide 1 in conjunction with this structure, staff can flexibly move the handheld guide 1 to change the measurement point, and can directly measure one point at a time on both sides of the river channel, which is more flexible and does not require staff to survey at the water's edge. It is safer and also convenient for use in wet and sunken terrain. Loosen the traction rope 102 and lower the water surface float 103 and place it on the slope. Once there is still water at the lowering position, the energized column 303 can be turned on to control the corresponding indicator light 403 to light up. Otherwise, it means that there is no water here. The water surface float 103 can be manually controlled to move in the vertical direction of the river channel to adjust and confirm the surveying point, ensuring that the surveying point is just past the edge of the river. The shallow water layer, that is, the area with a large slope of the river channel and a shallow water depth, is also the range of the river channel width.

[0040] like Figures 4 to 6 As shown, the fixed-point safety component 4 includes a handbook mounting shell 401 fixedly mounted on the front hand-held rod 104; a handbook is fixedly mounted on the handbook mounting shell 401; a torsion spring shaft 4011 is rotatably mounted on the handbook mounting shell 401; a torsion spring is sleeved on the torsion spring shaft 4011, and the torsion spring on the torsion spring shaft 4011 is connected between the torsion spring shaft 4011 and the handbook mounting shell 401; a cover plate 402 is fixedly mounted on the torsion spring shaft 4011; the cover plate 402 is made of iron metal; a row of indicator lights 403 is fixedly mounted on the cover plate 402, and the light colors of a row of indicator lights 403 are different; four power-on columns 303 are grouped in pairs, and each group of power-on columns 303, each group of power-on columns 303 and the ground switch 203 are respectively electrically connected. The fixed-point safety component 4 also includes an electromagnet 404 fixedly mounted on the handbook mounting shell 401; the electromagnet 404 magnetically attracts the cover plate 402; the cover plate 402 is used to block the handbook. The fixed-point safety component 4 can be used for insurance protection to prevent staff from illegally operating the handbook, ensuring that in actual measurement work, the RTK surveying instrument 202 must be attached to the shore before the measurement work can be carried out normally, otherwise the handbook cannot be operated normally, which can improve the measurement accuracy of this structure. The insurance control of this structure is reasonable. After the in-place block 302 is placed on the slope, the ground switch 203 can control the electromagnet 404 to cut off the power, and the staff can open the cover plate 402 to operate the handbook normally.

[0041] like Figures 4 to 10As shown, the probe rod 5 includes an electric telescopic rod 501 fixedly mounted on the counterweight connection plate 101; a propulsion shell 502 is slidably sleeved on the output shaft of the electric telescopic rod 501; a lifting float 503 is slidably sleeved inside the propulsion shell 502; a wading switch 504 is fixedly mounted on the inside of the propulsion shell 502; the end of the wading switch 504 is attached to the lifting float 503; the wading switch 504 is electrically connected to the indicator light 403; the probe rod 5 also includes a circle of water leakage grooves 5021 opened on the propulsion shell 502; the water leakage groove 5021 is used to pass water; the water leakage groove 5021 is connected to the inside of the propulsion shell 502; the probe rod 5 also includes a pressure switch 505 fixedly mounted on the output shaft of the electric telescopic rod 501; the end of the pressure switch 505 The part is squeezed and fitted on the inside of the propulsion shell 502; the pressure switch 505 is electrically connected to the indicator light 403; the end of the propulsion shell 502 is a sloped structure; the propulsion shell 502 passes through the counterweight connecting plate 101 and the water surface floating block 103; the weeding component 6 includes a driving motor 601 fixedly mounted on the counterweight connecting plate 101; a rotary cutting impeller 602 is fixedly mounted on the output shaft of the driving motor 601; the rotary cutting impeller 602 is used to rotary cut weeds; the driving motor 601 passes through the water surface floating block 103; the weeding component 6 can be used to assist in weeding work, which can improve the quality of the measurement area and reduce the interference of weeds. The use of the probe component 5 can facilitate the staff to measure the width of the river on the bank where weeds are present, which can improve the detection accuracy of this structure. , this structure can facilitate the wading detection work under the weeds, avoid the weeds interfering with the judgment of the staff, mistakenly thinking that there is no river water under the weeds, affecting the accuracy of the judgment of the river edge, and can be more suitable for outdoor use. The structure is more reasonable and more accurate for water area detection. This structure can test the water level through buoyancy while performing bottom detection, which can facilitate the staff to control the depth when lowering the propulsion shell 502, and can quickly perform the test, further preventing the weeds from supporting the shallow water prompt part 3. At this time, under the interference of weeds, the energized column 303 cannot perform accurate wading detection, causing data interference. At the same time, the way the probe part 5 performs wading detection can facilitate the staff to accurately judge the weeding area, avoiding The weeding area of the weeding component 6 is too large, which affects the detection efficiency. When there are weeds on the shore, the staff can operate the output shaft of the electric telescopic rod 501 to push out. At this time, the propulsion shell 502 moves down together with its own weight. At this time, the propulsion shell 502 can touch the bottom. At this time, the propulsion shell 502 is pressed by the ground, and the pressure switch 505 is pressed to control the indicator light 403 to light up. At this time, the electric telescopic rod 501 can be stopped from advancing. If there is a shallow water layer on the shore here, the lifting float 503 can be controlled by buoyancy to move up and squeeze the wading switch 504. At this time, the corresponding indicator light 403 can light up to prompt, and the drive motor 601 is started to drive the rotary cutting impeller 602 to assist in weeding, and the block 302 can be kept in place and squeezed and moved up.

[0042] The working principle provided by the present invention is that first, two people work together, one on each side of the river, holding the handheld pole 104, pulling the traction rope 102 to hang the RTK measuring instrument 202. The RTK measuring instrument itself is equipped with a display, also called a handbook. The handheld pole 104 can be manually rotated to reel in the traction rope 102 to adjust the length of the traction rope 102. Because the normal river channel is usually sunken ground and the river width is limited, the traction rope 102 is normally in an inclined state during actual use, which meets the needs of handheld operation. Under normal circumstances, During operation and measurement, it is not advisable to operate and measure outdoors at the riverside when there is strong wind. At the same time, because this structure is measured on the shore, the water surface depth is very shallow at the edge of the river, and its buoyancy is not enough to affect the stability of this structure. Two people operate to align the water surface floating block 103 with the edge of the river, then relax the traction rope 102 and lower the water surface floating block 103, and place it on the slope. Once there is still water at the lowering position, the power column 303 can be turned on. Any one of the two groups of power columns 303 can be turned on by water, and the corresponding indicator light 403 will light up to prompt. Otherwise, it means this If there is no water in the place where the water is not flowing, the surface float 103 can be manually controlled to move in the vertical direction of the river to adjust and confirm the surveying point, and ensure that the surveying point is just past the edge of the river. The in-place block 302 can be used to detect that the RTK measuring instrument 202 is lowered into place, which can prevent the traction rope 102 from being over-tensioned to lift the RTK measuring instrument 202 during manual measurement, thereby interfering with the accuracy of the power column 303 in detecting the river water. At the same time, the elevation data of the RTK measuring instrument 202 will also be inaccurate, thereby affecting the overall measurement accuracy. When switching the measuring point, the surface float 103 can be manually placed On the water surface, the auxiliary staff can adjust the detection point with ease. Two staff members can hold the control traction rope 102 on both sides of the river; after the positioning block 302 is placed on the slope, the spring elastic force on the compressed measurement installation block 201 only plays a role in preventing accidental touch. After the positioning block 302 contacts the ground, the positioning block 302 fits the ground switch 203. During the process, the spring on the measurement installation block 201 is compressed. At this time, the ground switch 203 can control the electromagnet 404 to cut off the power. At this time, the staff can normally open the cover 402 to operate the handbook;When there are weeds on the shore, the staff can operate the output shaft of the electric telescopic rod 501 to push out. At this time, the propulsion shell 502 moves downward with its own weight. At this time, the propulsion shell 502 can touch the bottom. At this time, the propulsion shell 502 is pressed by the ground, and the pressure switch 505 can be pressurized to control the indicator light 403 to light up. At this time, the electric telescopic rod 501 can be stopped from advancing. If there is still a shallow water layer on the shore here, the lifting float 503 can be controlled by buoyancy to move upward to squeeze the wading switch 504. At this time, the corresponding indicator light 403 can light up to indicate that this is not the edge of the water area. It is necessary to test the edge of the water area point by point outward, that is, the area without water on the slope. That is, when the indicator light 403 corresponding to the wading switch 504 is not lit, the drive motor 601 is started to drive the rotary cutting impeller 602 to assist in weeding. Subsequently, the RTK surveying instrument 202 can be used to measure and mark the point. The block 302 can be kept close to the shore to ensure the accuracy of the RTK surveying instrument 202 detection.

[0043] The present invention encompasses any alternatives, modifications, equivalents, and solutions that fall within the spirit and scope of the present invention. To provide a thorough understanding of the present invention, specific details are described in detail below in connection with the preferred embodiments of the present invention, but those skilled in the art will be able to fully understand the present invention without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of the present invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0044] The above are only preferred embodiments of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A river width measuring device for water conservancy projects, comprising a handheld guide with a measuring unit mounted thereon; characterized in that: The measuring part is used to measure the width of the river; a shallow water indicating member is installed on the measuring part; the shallow water indicating member is used to indicate a shallow water area; A fixed point safety piece is installed on the handheld guide piece; the fixed point safety piece is used to improve the positioning point accuracy; A probe is mounted on the handheld guide; the probe is used to reduce interference from brushwood. Two weeding parts are installed at the bottom of the handheld guide; The two weeding parts are used to assist in weeding; The handheld guide comprises: a counterweight connection plate and a traction rope, wherein two traction ropes are fixedly installed above the counterweight connection plate, and the two traction ropes are connected to the middle of the counterweight connection plate; The measuring unit includes a measuring mounting block fixedly mounted on the counterweight connection plate; an RTK measuring instrument is fixedly mounted on the measuring mounting block; the measuring mounting block is located in the middle of the counterweight connection plate; a ground contact switch is fixedly mounted on the side of the measuring mounting block; the ground contact switch is used to test whether the surface float is close to the shore; the RTK measuring instrument is used to measure the width of the river channel; The shallow water indicator comprises a lifting sleeve slidably sleeved on a measuring mounting block; a spring sleeved on the measuring mounting block; the spring sleeved on the measuring mounting block is connected between the lifting sleeve and the measuring mounting block; a positioning block is fixedly mounted on the bottom of the lifting sleeve; four energized posts are fixedly mounted on the positioning block; the four energized posts are grouped in pairs; the energized posts are used to detect shallow water areas; The handheld guide also includes a water surface float fixedly mounted on the bottom of the counterweight connection plate; both ends of the two traction ropes are fixedly mounted with handheld rods; the two handheld rods are used for handholding; The fixed-point safety component includes a handheld controller mounting shell fixedly mounted on the front handheld rod; a handheld controller is fixedly mounted on the handheld controller mounting shell; a torsion spring shaft is rotatably mounted on the handheld controller mounting shell; a torsion spring is sleeved on the torsion spring shaft, and the torsion spring on the torsion spring shaft is connected between the torsion spring shaft and the handheld controller mounting shell; a cover plate is fixedly mounted on the torsion spring shaft; the cover plate is made of iron metal; a row of indicator lights is fixedly mounted on the cover plate, and the light colors of each row of indicator lights are different; the power column and the ground switch are electrically connected to the indicator lights respectively; The fixed-point safety element further includes an electromagnet fixedly mounted on the handbook mounting shell; the electromagnet magnetically attracts a cover plate; the cover plate is used to shield the handbook; After the block is placed on the slope, it can touch the ground and open to control the electromagnet to cut off the power.

2. The river width measuring device for water conservancy projects according to claim 1, characterized in that: The probe rod component includes an electric telescopic rod fixedly mounted on a counterweight connecting plate; a propulsion shell is slidably sleeved on the output shaft of the electric telescopic rod; a lifting float is slidably sleeved inside the propulsion shell; a wading switch is fixedly mounted on the inside of the propulsion shell; the end of the wading switch is attached to the lifting float; the wading switch is electrically connected to an indicator light.

3. The river width measuring device for water conservancy projects according to claim 2, characterized in that: The probe rod also includes a circle of water leakage grooves opened on the propulsion shell; the water leakage grooves are used for passing water; and the water leakage grooves are connected to the inner side of the propulsion shell.

4. The river width measuring device for water conservancy projects according to claim 3, characterized in that: The probe rod also includes a pressure switch fixedly mounted on the output shaft of the electric telescopic rod; the end of the pressure switch is squeezed and fitted on the inner side of the propulsion shell; the pressure switch is electrically connected to the indicator light; the end of the propulsion shell is a sloped structure; the propulsion shell passes through the counterweight connection plate and the water surface float.

5. The river width measuring device for water conservancy projects according to claim 1, characterized in that: The weeding component includes a driving motor fixedly mounted on a counterweight connecting plate; a rotary cutting impeller is fixedly mounted on an output shaft of the driving motor; the rotary cutting impeller is used for rotary cutting weeds; and the driving motor passes through a water surface float.

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