River runoff measurement device

Abstract

The present invention provides a device for measuring river runoff, comprising: a frame body; a telescopic rod assembly, the first end of the telescopic rod assembly is rotatably connected to the frame body, and the telescopic rod assembly includes a first rod body and a second rod body; a guiding part, arranged on the telescopic rod assembly; a wire body, the first end of the wire body is connected to the telescopic rod assembly; a driving assembly, the second end of the wire body is arranged on the driving assembly; a measuring piece, arranged on the driving assembly, and the measuring piece is used for measuring the length of the wire body extending out of the driving assembly; a rangefinder, arranged on the frame body; and a flowmeter, arranged on the telescopic rod assembly. When the second end of the telescopic rod assembly abuts against the river bottom, the elongation length of the wire body is measured by the measuring piece, so that the length of the side of the river bed can be obtained. The width of the river bank is measured by the rangefinder. After obtaining the lengths of the sides of the inverted trapezoid, the cross-sectional area of the river bed can be calculated. Then, the flow velocity of the river is measured by the flowmeter, and the river runoff is obtained by multiplying the cross-sectional area of the river bed by the flow velocity of the river.

Description

Technical Field

[0001] The present invention belongs to the technical field of measuring devices, and more particularly, relates to a device for measuring river runoff. Background Art

[0002] The runoff and water quality of rivers flowing into the sea are important values reflecting the quantity of pollutants discharged into the sea. At present, only the estimation method can be used to calculate the river runoff, and it is difficult to ensure the accuracy of the obtained results. Summary of the Invention

[0003] The present invention aims to solve one of the technical problems existing in the prior art or related technologies.

[0004] In view of this, the present invention provides a device for measuring river runoff, including: a frame; a telescopic rod assembly, the first end of the telescopic rod assembly is rotatably connected to the frame, the telescopic rod assembly includes a plurality of rod bodies, the plurality of rod bodies include a first rod body and a second rod body, and the first rod body can extend into or out of the second rod body; a guiding part, arranged at the second end of the telescopic rod assembly; a wire body, the first end of the wire body is connected to the second end of the telescopic rod assembly; a driving component, arranged on the frame, the second end of the wire body is arranged on the driving component, and the driving component can drive the wire body to move so that the wire body drives the first rod body to extend into the second rod body; a measuring piece, arranged on the driving component, and the measuring piece is used to measure the length of the wire body extending out of the driving component; a rangefinder, arranged on the frame; and a flowmeter, arranged on the telescopic rod assembly.

[0005] The device for measuring river runoff provided by the present invention includes: a frame, a telescopic rod assembly, a guiding part, a wire body, a driving component and a rangefinder. The telescopic rod assembly includes a plurality of rod bodies, and two adjacent rod bodies in the plurality of rod bodies can slide relative to each other, that is, one rod body can extend out of or into an adjacent rod body. For the convenience of description, it is defined that the plurality of rod bodies include a first rod body and a second rod body, the first rod body and the second rod body are two adjacent rod bodies, the first rod body can be sleeved on an adjacent rod body, and the first rod body can also be sleeved by an adjacent rod body. In the present invention, the example that the first rod body can extend into or out of the second rod body is used for illustration. There are various ways for one rod body to extend out of another rod body. For example, a weight part is arranged at the first end of the telescopic rod assembly, and under the action of the gravity of the weight part, two adjacent rod bodies slide relative to each other to realize the extension function of the telescopic rod assembly, or a driving part can also be arranged to drive the two rod bodies to slide relative to each other. There are various ways for the telescopic rod assembly to extend.

[0006] Specifically, when in use, the frame can be erected on the bank of a river, and the telescopic rod assembly extends into the river. The telescopic rod assembly is extended, and the telescopic rod assembly descends along the riverbed. A guiding portion is provided at the second end of the telescopic rod assembly. The surface of the riverbed is irregular. When the guiding portion abuts against the protrusion on the riverbed, the guiding portion can slide relative to the protrusion on the riverbed surface and the telescopic rod assembly can rotate relative to the frame, thereby preventing the telescopic rod assembly from getting stuck at the position of the riverbed protrusion during the extension process, ensuring that the extension process of the telescopic rod assembly is not easily hindered, and guaranteeing the smooth progress of the measurement process. When the second end of the telescopic rod assembly abuts against the river bottom, the telescopic rod assembly stops extending. Since the wire is connected to the second end of the telescopic rod assembly, during the extension process of the telescopic rod assembly, the second end of the telescopic rod assembly can drive the wire to move. When the second end of the telescopic rod assembly abuts against the river bottom, the extension length of the wire is measured by the measuring member, and thus the length of the side of the riverbed can be obtained. Since the telescopic rod assembly is not easily deformed, the extension direction of the telescopic rod assembly remains basically unchanged. After measuring the lengths of the side walls on both sides of the riverbed respectively, the width of the river bank is measured by the rangefinder. The cross-section of the riverbed approaches an inverted trapezoid. After obtaining the lengths of the side walls on both sides of the riverbed and the width of the river bank, the width of the river bottom can be obtained. Specifically, through the angle between the side wall of the riverbed and the horizontal plane, with the width of the river bank as the bottom side of the inverted trapezoid, the side wall of the riverbed as the side of the inverted trapezoid, and the angle between the side wall of the riverbed and the horizontal plane as the angle between the bottom side and the side of the inverted trapezoid, the length of the top side of the inverted trapezoid can be obtained.

[0007] After obtaining the lengths of the sides of the inverted trapezoid, the cross-sectional area of the riverbed can be calculated. Then, the flow rate of the river is measured by the flowmeter, and the runoff of the river is obtained by multiplying the cross-sectional area of the riverbed by the flow rate of the river. Compared with the method of estimating the runoff, by calculating the shape of the riverbed and then calculating the runoff, the numerical accuracy of the obtained river runoff can be effectively improved, and thus the quantity of pollutants discharged into the sea can be accurately determined based on the river runoff and the water quality of the river.

[0008] After the measurement is completed, the wire is driven to move by the driving assembly, and the wire drives the second end of the telescopic rod assembly to move, so that the telescopic rod assembly contracts, facilitating the storage of the telescopic rod assembly.

[0009] In addition, according to the above technical solution of the river runoff measuring device provided by the present invention, the following additional technical features may also be included:

[0010] In a possible design, the telescopic rod assembly further includes: a first elastic member, each of the plurality of rod bodies is provided with a receiving cavity, the first elastic member is disposed in the receiving cavity, and the first elastic member is configured to push the second rod body so that the first rod body extends out of the second rod body; a connecting rod, the first rod body is provided with a mounting cavity, and the connecting rod is slidably connected to the mounting cavity; a second elastic member, disposed in the mounting cavity, the second elastic member is configured to push the connecting rod out of the mounting cavity, and the second rod body is provided with a connection hole for the connecting rod to be inserted into.

[0011] In this design, the telescopic rod assembly further includes a first elastic member, a connecting rod and a second elastic member. Each rod body is provided with a receiving cavity, and the receiving cavity can accommodate adjacent rod bodies. When the first rod body extends into the second rod body, at least part of the first rod body is located in the receiving cavity, so that the plurality of rod bodies can form a nested relationship with each other, reducing the space occupied when the telescopic rod assembly is stored. The first rod body is provided with a mounting cavity, the connecting rod can slide in the mounting cavity, and the second elastic member is also disposed in the mounting cavity. Moreover, the second elastic member can push the connecting rod, and the second elastic member can push the connecting rod out of the mounting cavity. The second rod body is provided with a connection hole. When the connecting rod is opposite to the connection hole, the second rod body can be inserted into the connection hole, and the connection hole limits the connecting rod, so that the first rod body can slide relative to the second rod body, that is, the mutual locking of the first rod body and the second rod body is realized, and the stability of the telescopic rod assembly during storage can be improved. When the telescopic rod assembly needs to be extended, press the connecting rod so that the connecting rod moves into the mounting cavity and separates from the connection hole. The connection hole no longer limits the connecting rod, and the elastic member pushes the second rod body, so that the first rod body and the second rod body push each other, and the telescopic rod assembly extends. By setting the elastic member to push the second rod body, the automatic extension of the telescopic rod assembly can be realized. Moreover, under the pushing action of the first elastic member, the first rod body and the second rod body are not easy to slide relative to each other, so that the accuracy of the measurement result can be improved.

[0012] In a possible design, the telescopic rod assembly further includes: a sliding portion, disposed on the first rod body; a sliding groove, disposed on the inner wall of the receiving cavity of the second rod body, the sliding portion can slide in the sliding groove, the sliding groove extends along the length direction of the second rod body, and there is a distance between the sliding groove and the open end of the receiving cavity.

[0013] In this design, the sliding part on the first rod body can slide within the sliding groove of the second rod body, and there is a spacing between the sliding groove and the open end of the accommodating cavity. Therefore, when the first rod body extends out of the second rod body by a certain distance, the sliding part abuts against a section of the sliding groove, and the sliding groove limits the sliding part. Since the sliding part cannot continue to slide along the sliding groove, the first rod body cannot continue to extend out of the second rod body, thus preventing the separation of the first rod body and the second rod body. Since the sliding part extends into the sliding groove, the gap between the side wall of the first rod body and the inner side wall of the second rod body is small, and the first rod body and the second rod body are not prone to shaking, thereby improving the accuracy of the measurement process. Moreover, since the distance between the first rod body and the second rod body is small, the first elastic member arranged in the accommodating cavity is not prone to torsion, enabling the first elastic member to stably push the second rod body and improving the stability of the telescopic rod assembly during the extension process.

[0014] In a possible design, the telescopic rod assembly further includes: a first sphere. A receiving groove is provided on the end face of the sliding part facing the sliding groove, and the first sphere is rotatably connected to the receiving groove, and a part of the first sphere extends out of the receiving groove and abuts against the sliding groove.

[0015] In this design, when the first rod body and the second rod body slide relative to each other, in order to prevent the excessive friction between the sliding part and the sliding groove from affecting the extension process of the telescopic rod, a receiving groove is provided on the end face of the sliding part facing the sliding groove, the first sphere is rotatably connected to the receiving groove, and a part of the first sphere extends out of the receiving groove and abuts against the sliding groove. When the sliding part slides in the sliding groove, the friction between the first sphere and the sliding groove is rolling friction, effectively reducing the friction between the first rod body and the second rod body, preventing the first rod body and the second rod body from jamming with each other, and improving the stability of the telescopic rod assembly during the extension or contraction process.

[0016] The receiving groove plays a role in limiting the first sphere, enabling the first sphere to be stably installed at a fixed position of the first rod body.

[0017] In a possible design, the telescopic rod assembly further includes: a third elastic member, which is arranged on the sliding part. When the first rod body extends out of the second rod body, the third elastic member can abut against one end of the sliding groove.

[0018] In this design, after unlocking the first rod body and the second rod body, the second elastic member can push the second rod body. If the relative movement speed of the first rod body and the second rod body is relatively fast, when the sliding part impacts one end of the sliding groove, it may cause damage to the sliding part. Therefore, a third elastic member is provided on the sliding part to prevent damage to the sliding part. Specifically, the sliding part can drive the third elastic member to move, the third elastic member can abut against the end of the sliding groove, and the third elastic member can buffer the movement of the sliding part, preventing the sliding part from being damaged due to high-speed impact and reducing the damage rate of the telescopic rod assembly.

[0019] In a possible design, the telescopic rod assembly further includes: a reinforcing layer provided on the outer wall of each of the plurality of rod bodies.

[0020] In this design, when the telescopic rod assembly extends, the rod body slides relative to the side wall of the riverbed. By providing a reinforcing layer on the outer wall of the rod body, the strength of the outer surface of the rod body can be improved, and the rod body can be prevented from being damaged. In addition, since the rod body only abuts against the side wall of the riverbed on one side, the reinforcing layer can be provided only on one side wall of the rod body.

[0021] The reinforcing layer can be a chromium plating layer or a titanium nitride coating, etc.

[0022] In a possible design, the guiding portion is a second sphere.

[0023] In this design, due to the smooth surface of the sphere, when the second sphere can slide relative to the uneven portions on the side wall of the riverbed, the second sphere can smoothly pass through the uneven structure on the side wall of the riverbed, improving the stability of the telescopic rod assembly during the extension process. Since all parts of the sphere are smooth, when all parts of the second sphere abut against the uneven structure on the side wall of the riverbed, the second sphere can smoothly pass through.

[0024] In a possible design, the second sphere is rotatably connected to the second end of the telescopic rod assembly.

[0025] In this design, the second sphere is rotatably connected to the telescopic rod assembly, so that the friction between the second sphere and the side wall of the riverbed is rolling friction, reducing the friction between the second sphere and the side wall of the riverbed, and further improving the smoothness of the second sphere passing through the uneven structure on the side wall of the riverbed.

[0026] In a possible design, the driving assembly includes: a rotating shaft rotatably connected to the frame; a drum provided on the rotating shaft, the wire can be wound around the drum, and each of the plurality of rod bodies is provided with a through hole for the wire to pass through, so that the wire passes through the through hole and is connected to the first end of the telescopic rod assembly.

[0027] In this design, the driving assembly includes a rotating shaft and a drum. The rotating shaft is rotatably connected to the frame, and the rotating shaft can drive the drum to rotate. When the drum rotates in different directions, the wire can extend out of the drum or be wound around the drum. The wire is connected to the first end of the telescopic rod assembly. After measuring the size of the side wall of the riverbed, the rotating shaft drives the drum to rotate, and the drum winds up the wire. The wire drives the first end of the telescopic rod assembly to move, so that the adjacent rod bodies in the telescopic rod assembly are sleeved with each other, and the telescopic rod assembly contracts, thus facilitating the storage of the telescopic rod assembly.

[0028] The wire passes through the plurality of rod bodies and is connected to the first end of the telescopic rod assembly, so that each rod body can be in force balance, avoiding the situation that one rod body in the adjacent rod bodies deflects relative to the other rod body when the telescopic rod assembly contracts, and improving the stability of the telescopic rod assembly when contracting.

[0029] The user can drive the rotating shaft, or a driving member can be provided, such as a motor to drive the rotating shaft to rotate.

[0030] In a possible design, the rangefinder is detachably connected to the frame.

[0031] In this design, the rangefinder can be fixed to the frame, eliminating the need for the user to carry the rangefinder separately. This makes the river runoff measurement device a complete unit, preventing the loss or forgetting to carry the rangefinder, and improving the convenience of the user in transporting the river runoff measurement device. The frame can support the rangefinder, preventing it from shaking and enhancing its stability during use. The rangefinder can also be detached from the frame, enabling the measurement of the river width at multiple locations.

[0032] A snap component can be provided on the frame to fix the rangefinder to the frame through the snap component.

[0033] The additional aspects and advantages of the present invention will become apparent in the following description section, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The above and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0035] Figure 1 shows a schematic structural diagram of a river runoff measurement device according to an embodiment of the present invention;

[0036] Figure 2 shows a schematic structural diagram of a telescopic rod assembly and a guiding portion according to an embodiment of the present invention;

[0037] Figure 3 shows Figure 2 a cross-sectional view taken along the A-A direction in

[0038] Figure 4 shows Figure 3 an enlarged view at B in

[0039] Figure 5 shows Figure 3 an enlarged view at C in

[0040] Wherein, Figures 1 to 5 the corresponding relationship between the reference numerals in the drawings and the component names is:

[0041] 100 Frame, 200 Telescopic rod assembly, 210 First rod body, 220 Second rod body, 221 Connecting hole, 230 First elastic member, 240 Connecting rod, 250 Second elastic member, 260 Sliding part, 270 Sliding groove, 280 First sphere, 290 Third elastic member, 300 Guide part, 400 Wire body. Detailed implementation mode

[0042] In order to be able to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific implementation modes. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0043] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited by the specific embodiments disclosed below.

[0044] The following refers to Figures 1 to 5 Describe a river runoff measurement device provided according to some embodiments of the present invention.

[0045] Combined with Figure 1 、 Figure 2 And Figure 3 As shown, the embodiments of the present invention propose a river runoff measurement device, including: a frame 100; a telescopic rod assembly 200, the first end of the telescopic rod assembly 200 is rotatably connected to the frame 100, the telescopic rod assembly 200 includes a plurality of rod bodies, the plurality of rod bodies include a first rod body 210 and a second rod body 220, and the first rod body 210 can extend into or out of the second rod body 220; a guide part 300, provided at the second end of the telescopic rod assembly 200; a wire body 400, the first end of the wire body 400 is connected to the second end of the telescopic rod assembly 200; a driving assembly, provided on the frame 100, the second end of the wire body 400 is provided on the driving assembly, and the driving assembly can drive the wire body 400 to move so that the wire body 400 drives the first rod body 210 to extend into the second rod body 220; a measuring member, provided on the driving assembly, and the measuring member is used to measure the length of the wire body 400 extending out of the driving assembly; a rangefinder, provided on the frame 100; a flowmeter, provided on the telescopic rod assembly 200.

[0046] The river runoff measuring device provided by the present invention includes: a frame body 100, a telescopic rod assembly 200, a guiding part 300, a wire body 400, a driving assembly and a rangefinder. The telescopic rod assembly 200 includes a plurality of rod bodies. Two adjacent rod bodies among the plurality of rod bodies can slide relative to each other, that is, one rod body can extend or retract into the adjacent rod body. For the convenience of description, it is defined that the plurality of rod bodies include a first rod body 210 and a second rod body 220. The first rod body 210 and the second rod body 220 are two adjacent rod bodies. The first rod body 210 can be sleeved on an adjacent rod body, and the first rod body 210 can also be sleeved by an adjacent rod body. In the present invention, the example that the first rod body 210 can extend into or out of the second rod body 220 is used for description. There can be various ways for one rod body to extend out of another rod body. For example, a weight part is arranged at the first end of the telescopic rod assembly 200. Under the action of the gravity of the weight part, two adjacent rod bodies slide relative to each other to realize the extension function of the telescopic rod assembly 200. A driving part can also be arranged to drive the two rod bodies to slide relative to each other. There can be various extension methods for the telescopic rod assembly 200.

[0047] Specifically, when in use, the frame body 100 can be erected on the bank of the river. The telescopic rod assembly 200 extends into the river and the telescopic rod assembly 200 is extended. The telescopic rod assembly 200 descends along the riverbed. A guiding part 300 is arranged at the second end of the telescopic rod assembly 200. The surface of the riverbed is irregular. When the guiding part 300 abuts against the protrusion on the riverbed, the guiding part 300 can slide relative to the protrusion on the riverbed surface and the telescopic rod assembly 200 can rotate relative to the frame body 100, so as to prevent the telescopic rod assembly 200 from being stuck at the position of the riverbed protrusion during the extension process, ensure that the extension process of the telescopic rod assembly 200 is not easily blocked, and ensure the smooth progress of the measurement process. When the second end of the telescopic rod assembly 200 abuts against the river bottom, the telescopic rod assembly 200 stops extending. Since the wire body 400 is connected to the second end of the telescopic rod assembly 200, during the extension process of the telescopic rod assembly 200, the second end of the telescopic rod assembly 200 can drive the wire body 400 to move. When the second end of the telescopic rod assembly 200 abuts against the river bottom, the elongation length of the wire body 400 is measured by a measuring part, and thus the length H of the side of the riverbed can be obtained. Since the telescopic rod assembly 200 is not easily deformed, the extension direction of the telescopic rod assembly 200 is basically unchanged. After measuring the lengths of the side walls on both sides of the riverbed respectively, the width L of the river bank is measured by a rangefinder. The cross-section of the riverbed approaches an inverted trapezoid. After obtaining the lengths H of the side walls on both sides of the riverbed and the width L of the river bank, the width of the river bottom can be obtained. Specifically, through the included angle between the side wall of the riverbed and the horizontal plane, with the width of the river bank as the bottom edge of the inverted trapezoid and the side wall of the riverbed as the side edge of the inverted trapezoid, and the included angle between the side wall of the riverbed and the horizontal plane as the included angle between the bottom edge and the side edge of the inverted trapezoid, the length of the top edge of the inverted trapezoid can be obtained.

[0048] After obtaining the lengths of the sides of the inverted trapezoid, the cross-sectional area of the riverbed can be calculated. Then, the flow velocity of the river is measured by a flowmeter, and the runoff of the river is obtained by multiplying the cross-sectional area of the riverbed by the flow velocity of the river. Compared with the method of estimating the runoff, calculating the shape of the riverbed and then calculating the runoff can effectively improve the numerical accuracy of the obtained river runoff, so as to ensure the accurate determination of the quantity of pollutants discharged into the sea based on the river runoff and water quality.

[0049] After the measurement is completed, the driving assembly is used to drive the movement of the wire body 400. The wire body 400 drives the movement of the second end of the telescopic rod assembly 200, causing the telescopic rod assembly 200 to contract, thus facilitating the storage of the telescopic rod assembly 200.

[0050] Figure 2 The number of rod bodies shown in [figure] is two for the convenience of describing this embodiment, and the number of rod bodies can be increased according to the usage requirements.

[0051] Combined Figure 1 、 Figure 3 and Figure 4 As shown in [figure], in a possible embodiment, the telescopic rod assembly 200 further includes: a first elastic member 230. Each of the plurality of rod bodies is provided with a receiving cavity, and the first elastic member 230 is disposed in the receiving cavity. The first elastic member 230 is used to push the second rod body 220 so that the first rod body 210 extends out of the second rod body 220; a connecting rod 240. The first rod body 210 is provided with an installation cavity, and the connecting rod 240 is slidably connected to the installation cavity; a second elastic member 250, disposed in the installation cavity. The second elastic member 250 is used to push the connecting rod 240 to extend out of the installation cavity, and the second rod body 220 is provided with a connection hole 221 for the connecting rod 240 to be inserted into.

[0052] In this embodiment, the telescopic rod assembly 200 further includes a first elastic member 230, a connecting rod 240, and a second elastic member 250. Each rod body is provided with a receiving cavity, and the receiving cavity can accommodate adjacent rod bodies. When the first rod body 210 extends into the second rod body 220, at least a part of the first rod body 210 is located in the receiving cavity, so that a plurality of rod bodies can form a nested relationship with each other, reducing the space occupied when the telescopic rod assembly 200 is stored. An installation cavity is provided on the first rod body 210. The connecting rod 240 can slide in the installation cavity. The second elastic member 250 is also arranged in the installation cavity, and the second elastic member 250 can push the connecting rod 240. The second elastic member 250 can push the connecting rod 240 to extend out of the installation cavity. The second rod body 220 is provided with a connection hole 221. When the connecting rod 240 is opposite to the connection hole 221, the second rod body 220 can be inserted into the connection hole 221, and the connection hole 221 limits the connecting rod 240, so that the first rod body 210 can slide relative to the second rod body 220, that is, the mutual locking of the first rod body 210 and the second rod body 220 is realized, and the stability of the telescopic rod assembly 200 during storage can be improved. When the telescopic rod assembly 200 needs to be extended, press the connecting rod 240 so that the connecting rod 240 moves into the installation cavity and separates from the connection hole 221. The connection hole 221 no longer limits the connecting rod 240. The elastic member pushes the second rod body 220, so that the first rod body 210 and the second rod body 220 push each other, and the telescopic rod assembly 200 extends. By setting the elastic member to push the second rod body 220, the automatic extension of the telescopic rod assembly 200 can be realized. Moreover, under the pushing action of the first elastic member 230, the first rod body 210 and the second rod body 220 are not easy to slide relative to each other, so that the accuracy of the measurement result can be improved.

[0053] Combined with Figure 1 、 Figure 3 and Figure 5 As shown in, in a possible embodiment, the telescopic rod assembly 200 further includes: a sliding portion 260, arranged on the first rod body 210; a sliding groove 270, arranged on the inner wall of the receiving cavity in the second rod body 220. The sliding portion 260 can slide in the sliding groove 270. The sliding groove 270 extends along the length direction of the second rod body 220, and there is a distance between the sliding groove 270 and the open end of the receiving cavity.

[0054] In this embodiment, the sliding portion 260 on the first rod body 210 can slide within the sliding groove 270 of the second rod body 220, and there is a distance between the sliding groove 270 and the open end of the accommodating cavity. Therefore, when the first rod body 210 extends out of the second rod body 220 by a certain distance, the sliding portion 260 abuts against a section of the sliding groove 270, and the sliding groove 270 limits the sliding portion 260. Since the sliding portion 260 cannot continue to slide along the sliding groove 270, the first rod body 210 cannot continue to extend out of the second rod body 220, thus preventing the first rod body 210 and the second rod body 220 from separating. Since the sliding portion 260 extends into the sliding groove 270, the gap between the side wall of the first rod body 210 and the inner side wall of the second rod body 220 is small, and the first rod body 210 and the second rod body 220 are not prone to shaking, thereby improving the accuracy of the measurement process. Moreover, since the distance between the first rod body 210 and the second rod body 220 is small, the first elastic member 230 disposed in the accommodating cavity is not prone to torsion, enabling the first elastic member 230 to stably push the second rod body 220 and improving the stability of the telescopic rod assembly 200 during the elongation process.

[0055] Combined with Figure 1 、 Figure 3 and Figure 5 As shown in, in a possible embodiment, the telescopic rod assembly 200 further includes: a first sphere 280. A receiving groove is provided on the end face of the sliding portion 260 facing the sliding groove 270. The first sphere 280 is rotatably connected to the receiving groove, and a part of the first sphere 280 extends out of the receiving groove and abuts against the sliding groove 270.

[0056] In this embodiment, when the first rod body 210 and the second rod body 220 slide relative to each other, in order to prevent the friction between the sliding portion 260 and the sliding groove 270 from being too large and affecting the elongation process of the telescopic rod, a receiving groove is provided on the end face of the sliding portion 260 facing the sliding groove 270. The first sphere 280 is rotatably connected to the receiving groove, and a part of the first sphere 280 extends out of the receiving groove and abuts against the sliding groove 270. When the sliding portion 260 slides in the sliding groove 270, the friction between the first sphere 280 and the sliding groove 270 is rolling friction, effectively reducing the friction between the first rod body 210 and the second rod body 220, preventing the first rod body 210 and the second rod body 220 from being stuck to each other, and improving the stability of the telescopic rod assembly 200 during the elongation or contraction process.

[0057] The receiving groove positions the first sphere 280, enabling the first sphere 280 to be stably installed at a fixed position on the first rod body 210.

[0058] Combined with Figure 1 、 Figure 3 and Figure 5As shown, in a possible embodiment, the telescopic rod assembly 200 further includes: a third elastic member 290 disposed on the sliding portion 260. When the first rod body 210 extends out of the second rod body 220, the third elastic member 290 can abut against one end of the sliding groove 270.

[0059] In this embodiment, after unlocking the first rod body 210 and the second rod body 220, the second elastic member 250 can push the second rod body 220. If the relative movement speed of the first rod body 210 and the second rod body 220 is relatively fast, when the sliding portion 260 hits one end of the sliding groove 270, it may cause damage to the sliding portion 260. Therefore, a third elastic member 290 is provided on the sliding portion 260 to avoid damage to the sliding portion 260. Specifically, the sliding portion 260 can drive the third elastic member 290 to move, the third elastic member 290 can abut against the end of the sliding groove 270, and the third elastic member 290 can buffer the movement of the sliding portion 260, avoiding damage to the sliding portion 260 caused by high-speed impact and reducing the damage rate of the telescopic rod assembly 200.

[0060] In a possible embodiment, the telescopic rod assembly 200 further includes: a reinforcing layer disposed on the outer wall of each rod body among the plurality of rod bodies.

[0061] In this embodiment, when the telescopic rod assembly 200 extends, the rod body slides relative to the side wall of the riverbed. By providing a reinforcing layer on the outer wall of the rod body, the strength of the outer surface of the rod body can be improved, avoiding damage to the rod body. In addition, since only one side of the rod body abuts against the side wall of the riverbed, a reinforcing layer can be provided only on one side wall of the rod body.

[0062] The reinforcing layer can be a chromium plating layer or a titanium nitride coating, etc.

[0063] Combined Figure 1 、 Figure 3 and Figure 5 As shown, in a possible embodiment, the guiding portion 300 is a second sphere.

[0064] In this embodiment, since the surface of the sphere is smooth, when the second sphere can slide relative to the uneven portions on the side wall of the riverbed, the second sphere can smoothly pass through the uneven structure on the side wall of the riverbed, improving the stability of the telescopic rod assembly 200 during the extension process. Since all parts of the sphere are smooth, when all parts of the second sphere abut against the uneven structure on the side wall of the riverbed, the second sphere can smoothly pass through.

[0065] In a possible embodiment, the second sphere is rotatably connected to the second end of the telescopic rod assembly 200.

[0066] In this embodiment, the second sphere is rotatably connected to the telescopic rod assembly 200, such that the rolling friction exists between the second sphere and the riverbed side wall, reducing the frictional force therebetween, and further improving the smoothness of the second sphere passing through the uneven structure of the riverbed side wall.

[0067] In a possible embodiment, the driving assembly includes: a rotating shaft rotatably connected to the frame 100; a reel provided on the rotating shaft, the wire body 400 can be wound around the reel, and each of the plurality of rod bodies is provided with a through hole for the wire body 400 to pass through, so that the wire body 400 passes through the through hole and is connected to the first end of the telescopic rod assembly 200.

[0068] In this embodiment, the driving assembly includes a rotating shaft and a reel. The rotating shaft is rotatably connected to the frame 100, and the rotating shaft can drive the reel to rotate. When the reel rotates in different directions, the wire body 400 can extend out of the reel or be wound onto the reel. The wire body 400 is connected to the first end of the telescopic rod assembly 200. After measuring the size of the riverbed side wall, the rotating shaft drives the reel to rotate, and the reel winds the wire body 400. The wire body 400 drives the first end of the telescopic rod assembly 200 to move, such that the adjacent rod bodies in the telescopic rod assembly 200 are sleeved with each other, and the telescopic rod assembly 200 contracts, thereby facilitating the storage of the telescopic rod assembly 200.

[0069] The wire body 400 passes through the plurality of rod bodies and is connected to the first end of the telescopic rod assembly 200, such that each rod body can be in force balance, avoiding the situation that one of the adjacent rod bodies deflects relative to the other rod body when the telescopic rod assembly 200 contracts, and improving the stability of the telescopic rod assembly 200 when contracting.

[0070] The user can drive the rotating shaft or set a driving member, such as a motor to drive the rotating shaft to rotate.

[0071] In a possible embodiment, the rangefinder is detachably connected to the frame 100.

[0072] In this embodiment, the rangefinder can be fixed to the frame 100, eliminating the need for the user to carry the rangefinder separately, making the river runoff measuring device a complete device, avoiding the situation of the rangefinder being lost or forgotten to be carried, and improving the convenience of the user in carrying the river runoff measuring device. The frame 100 can support the rangefinder, avoiding the rangefinder from shaking and improving the stability of the rangefinder during use. The rangefinder can also be detached from the frame 100, so that the rangefinder can be used to measure the river width at multiple positions.

[0073] A buckle assembly can be provided on the frame to fix the rangefinder to the frame through the buckle assembly.

[0074] In the present invention, the term "a plurality of" refers to two or more, unless otherwise clearly defined. Terms such as "installed", "connected", "coupled", "fixed", etc. shall be construed in a broad sense. For example, "connected" may be a fixed connection, a detachable connection, or an integral connection; "coupled" may be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0075] In the description of this specification, the descriptions of terms such as "one embodiment", "some embodiments", "specific embodiments", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or instance. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0076] The foregoing are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A river runoff measurement device, characterized in that, Comprising: A frame; a telescopic rod assembly The first end of the telescopic rod assembly is rotatably connected to the frame. The telescopic rod assembly includes a plurality of rod bodies, and the plurality of rod bodies include a first rod body and a second rod body. The first rod body can extend into or out of the second rod body; A guiding part is arranged at the second end of the telescopic rod assembly. When the guiding part abuts against a protrusion on the riverbed, the guiding part can slide relative to the protrusion on the riverbed surface; A wire body, the first end of the wire body is connected to the second end of the telescopic rod assembly; A driving assembly is arranged on the frame. The second end of the wire body is arranged on the driving assembly. The driving assembly can drive the wire body to move so that the wire body drives the first rod body to extend into the second rod body; By driving the wire body to move through the driving assembly, the wire body drives the second end of the telescopic rod assembly to move, so that the telescopic rod assembly contracts; A measuring part is arranged on the driving assembly. The measuring part is used to measure the length of the wire body extending out of the driving assembly; A rangefinder is arranged on the frame; A flowmeter is arranged on the telescopic rod assembly; The telescopic rod assembly further includes: A first elastic member. Each rod body of the plurality of rod bodies is provided with a receiving cavity. The first elastic member is arranged in the receiving cavity. The first elastic member is used to push the second rod body so that the first rod body extends out of the second rod body; A connecting rod. The first rod body is provided with an installation cavity. The connecting rod is slidably connected to the installation cavity; A second elastic member is arranged in the installation cavity. The second elastic member is used to push the connecting rod to extend out of the installation cavity. The second rod body is provided with a connection hole for the connecting rod to be inserted into; When the connecting rod and the connection hole are opposite to each other, the connecting rod can be inserted into the connection hole, and the connection hole limits the connecting rod; A sliding part is arranged on the first rod body; A sliding groove is arranged on the inner wall of the receiving cavity in the second rod body. The sliding part can slide in the sliding groove. The sliding groove extends along the length direction of the second rod body. There is a distance between the sliding groove and the open end of the receiving cavity; A reinforcing layer is arranged on the outer wall of each rod body of the plurality of rod bodies; The reinforcing layer is only arranged on one side wall of the rod body. The reinforcing layer is a chromium plating layer or a titanium nitride coating; A counterweight part is arranged at the first end of the telescopic rod assembly. Under the action of the gravity of the counterweight part, two adjacent rod bodies slide relative to each other; The rangefinder is detachably connected to the frame; A buckle assembly is arranged on the frame, and the rangefinder is fixed to the frame through the buckle assembly; The telescopic rod assembly further includes: a first sphere. The end face of the sliding part facing the sliding groove is provided with a receiving groove. The first sphere is rotatably connected to the receiving groove. Part of the first sphere extends out of the receiving groove and abuts against the sliding groove. When the sliding part slides in the sliding groove, the rolling friction exists between the first sphere and the sliding groove; The telescopic rod assembly further includes: a third elastic member arranged on the sliding part. When the first rod body extends out of the second rod body, the third elastic member can abut against one end of the sliding groove.

2. The river runoff measurement device according to claim 1, wherein the guiding part is a second sphere.

3. The river runoff measurement device according to claim 2, wherein the second sphere is rotatably connected to the second end of the telescopic rod assembly.

4. The river runoff measurement device according to claim 1, characterized in that, The driving assembly includes: a rotating shaft rotatably connected to the frame; a reel provided on the rotating shaft, the wire body can be wound around the reel, and each of the plurality of rod bodies is provided with a through hole for the wire body to pass through, so that the wire body passes through the through hole and is connected to the first end of the telescopic rod assembly.

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