Flow velocity measuring device

Abstract

The embodiment of the application provides a flow velocity measuring device, the flow velocity measuring device includes: a support having a sleeve and a telescopic rod, the sleeve is a hollow tubular structure, the sleeve is slidably sleeved with a hoop member, a first end of the telescopic rod is slidably inserted in the top of the sleeve, and a second end of the telescopic rod is slidably inserted in the top of the sleeve; a mounting seat is arranged at the second end of the telescopic rod; the probe is assembled on the clamping piece, the host is assembled on the mounting base, and the probe is electrically connected with the host so that the probe can transmit measured water flow velocity data to the host to be displayed. According to the scheme, the heights of the probe and the host can be adjusted, so that the measurement requirements in different water depth scenes are met.

Description

Technical Field

[0001] This application relates to the field of flow velocity measurement technology, and in particular to a flow velocity measurement device. Background Technology

[0002] Flow velocity measuring devices are commonly used to measure the flow velocity of water in various scenarios such as rivers, farmland canals, urban sewers, and sewage outlets.

[0003] The flow velocity measurement device of the relevant technology includes a bracket, a probe for measuring water flow velocity, and a main unit for displaying the water flow velocity. The probe is fixed to the bottom of the bracket, and the main unit is fixed to the top of the bracket, with an electrical connection between the probe and the main unit. During measurement, after the probe is inserted into the water, it transmits the measured flow velocity data to the main unit for display, allowing the user to directly observe the flow velocity data on the main unit. However, because both the probe and the main unit are fixed to the bracket, the height of both the probe and the main unit cannot be adjusted when using the flow velocity measurement device. This limits the use of the flow velocity measurement device to specific water depth scenarios, thus hindering its ability to meet measurement needs in different water depths. Utility Model Content

[0004] This application provides a flow velocity measuring device to solve or alleviate the technical problem in the prior art where the height of both the probe and the host cannot be adjusted, which limits the use of the flow velocity measuring device to specific water depth scenarios and makes it difficult for the flow velocity measuring device to meet the measurement needs of different water depth scenarios.

[0005] This application provides a flow velocity measuring device, including: a bracket having a sleeve and a telescopic rod, the sleeve being a hollow tubular structure with a clamp slidably fitted on the outside of the sleeve, the first end of the telescopic rod being slidably inserted into the top of the sleeve, and the second end of the telescopic rod being provided with a mounting base; a probe and a main unit, the probe being mounted on the clamp, the main unit being mounted on the mounting base, and the probe being electrically connected to the main unit so that the probe transmits the measured water flow velocity data to the main unit for display.

[0006] In one embodiment, the telescopic rod is a hollow rod-shaped structure with multiple first limiting holes arranged at intervals along the axial direction of the telescopic rod; the top of the sleeve is provided with a second limiting hole, and a limiting rod is inserted through the second limiting hole. The limiting rod is used to simultaneously pass through the second limiting hole and the first limiting hole directly opposite the second limiting hole when the length of the telescopic rod extending from the top of the sleeve is adjusted to the target length.

[0007] In one embodiment, the probe includes a probe body and two locking blocks spaced apart at the bottom of the probe body. The clamping component includes: two retaining rings, each retaining ring being arc-shaped, and the two retaining rings forming a ring structure around the outside of the sleeve; two first mating blocks, each first mating block being fixedly connected to the outer wall of each retaining ring and disposed adjacent to the first end of the corresponding retaining ring, the two first mating blocks being simultaneously penetrated by a first bolt to detachably connect the first ends of the two retaining rings; and two second mating blocks, each second mating block being disposed on the outer wall of each retaining ring and disposed adjacent to the second end of the corresponding retaining ring, the top of each second mating block being provided with a locking groove for each locking block to engage, the two second mating blocks and the two retaining blocks being simultaneously penetrated by a second bolt to detachably connect the second ends of the two retaining rings, and the probe being detachably assembled onto the two second mating blocks.

[0008] In one embodiment, each first mating block is tangentially disposed to its corresponding retaining ring; and / or, each second mating block is perpendicular to its corresponding retaining ring.

[0009] In one embodiment, each first mating block has a first mounting hole inside, each first mounting hole penetrating both end faces of the corresponding first mating block and being coaxially arranged, and a first bolt passing through the two first mounting holes; each locking block has a second mounting hole, each second mounting hole penetrating both sides of the corresponding locking block and being coaxially arranged, and each second mating block has a third mounting hole inside, each third mounting hole penetrating both sides of the corresponding second mating block and the end wall of the corresponding locking groove and being coaxially arranged, and when the two locking blocks are locked into the two locking grooves one by one, the two second mounting holes and the two third mounting holes are located on the same axis, and a second bolt passes through the two second mounting holes and the two third mounting holes.

[0010] In one embodiment, the host includes a host body and two T-shaped plugs spaced apart on the back of the host body; the mounting base is a semi-cylindrical structure, and a mounting groove is provided on the arc side of the mounting base. The mounting groove extends along the axial direction of the mounting base and passes through the upper and lower surfaces of the mounting base. Two T-shaped slots are spaced apart at the bottom of the mounting groove; the two T-shaped plugs are inserted into the two T-shaped slots one by one to detachably install the host body in the mounting groove.

[0011] In one embodiment, each T-shaped plug has a positioning post at its bottom end, each T-shaped slot penetrates the upper surface of the mounting base but not the lower surface of the mounting base, and the end wall of each T-shaped slot is recessed towards the lower surface of the mounting base to form a positioning hole, and the two positioning posts and the two positioning holes are inserted and engaged in a one-to-one correspondence.

[0012] In one embodiment, the flow rate measuring device further includes a base disposed at the bottom of the sleeve. The base includes: a base body, which has a cylindrical structure; a plurality of receiving ports, which are spaced apart around the periphery of the base body and penetrate the upper and lower surfaces of the base body; a plurality of rotating shafts, each rotating shaft being rotatably connected between two side walls of each receiving port; and a plurality of insert rods, which are vertically disposed on the plurality of rotating shafts in a corresponding manner; wherein the length of the insert rod is less than the radial dimension of the receiving port on the base body.

[0013] In one embodiment, a screw seat is provided in the middle of the base body, and the base body is screwed to the bottom of the sleeve through the screw seat.

[0014] In one implementation, the probe is an ultrasonic probe.

[0015] This embodiment of the application employs the above-described technical solution by setting a support with a sleeve and a telescopic rod. The sleeve is a hollow tubular structure, and a clamp is slidably fitted onto the outside of the sleeve. The first end of the telescopic rod is slidably inserted into the top of the sleeve, and a mounting base is provided at the second end of the telescopic rod. The probe is assembled onto the clamp, and the main unit is assembled onto the mounting base. This structure allows the clamp to slide along the axial direction of the sleeve, causing the probe to move closer to the bottom of the sleeve along the axial direction, thereby shortening the distance between the probe and the bottom of the support, thus lowering the probe height. Alternatively, the clamp can slide along the axial direction of the sleeve, causing the probe to move away from the bottom of the sleeve along the axial direction, thereby lengthening the distance between the probe and the bottom of the support, thus raising the probe height. This allows for probe height adjustment. Furthermore, the telescopic rod can extend and retract at the top of the sleeve, causing the main unit to move closer to or away from the top of the sleeve along the axial direction of the telescopic rod, thereby correspondingly lowering or raising the height of the main unit. Based on this, the use of the flow velocity measurement device is not limited by specific water depth scenarios, which is beneficial for the flow velocity measurement device to meet the measurement needs in different water depth scenarios. Attached Figure Description

[0016] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments disclosed in this application and should not be construed as limiting the scope of this application.

[0017] Figure 1 The diagram shown is a structural schematic of a flow velocity measuring device according to an embodiment of this application.

[0018] Figure 2A As shown Figure 1 A schematic diagram of the probe structure.

[0019] Figure 2B As shown Figure 1A schematic diagram of the structure of the clamp component.

[0020] Figure 3A As shown Figure 1 A schematic diagram of the structure of the host computer.

[0021] Figure 3B As shown Figure 1 A schematic diagram of the mounting base.

[0022] Figure 4 As shown Figure 1 A schematic diagram of the structure of the central base. Detailed Implementation

[0023] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this application. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0024] Figure 1 A schematic diagram of the flow rate measuring device according to an embodiment of this application is shown.

[0025] like Figure 1 As shown, the flow rate measuring device 10 includes a bracket 11, a clamp 12, a mounting base 13, a probe 14, and a main unit 15.

[0026] The support 11 has a sleeve 111 and a telescopic rod 112. The sleeve 111 is a hollow tubular structure, and a clamp 12 is slidably fitted onto the outside of the sleeve 111. The first end of the telescopic rod 112 is slidably inserted into the top of the sleeve 111, and the second end of the telescopic rod 112 is provided with a mounting base 13. The probe 14 is mounted on the clamp 12, and the main unit 15 is mounted on the mounting base 13. The probe 14 and the main unit 15 are electrically connected so that the probe 14 transmits the measured water flow velocity data to the main unit 15 for display. The probe 14 and the main unit 15 can be electrically connected via an electrical connection cable 16.

[0027] For example, by mounting the probe 14 onto the clamp 12 and slidably sleeved the clamp 12 over the sleeve 111, this structure allows adjustment of the position of the probe 14 on the bracket 11 by sliding the clamp 12, thereby adjusting the height of the probe 14 in the vertical direction. For instance, by sliding the clamp 12 toward the top of the sleeve 111, the probe 14 can be moved toward the top of the sleeve 111, thus raising the height of the probe 14; by sliding the clamp 12 toward the bottom of the sleeve 111, the probe 14 can be moved toward the bottom of the sleeve 111, thus lowering the height of the probe 14.

[0028] For example, by setting the sleeve 111 as a hollow tubular structure, and slidably inserting the first end of the telescopic rod 112 into the top of the sleeve 111, and providing a mounting base 13 at the second end of the telescopic rod 112, this structure allows adjustment of the vertical height of the main unit 15 by adjusting the extension and retraction of the telescopic rod 112 at the top of the sleeve 111. For instance, when the telescopic rod 112 extends a certain length from the top of the sleeve 111, the main unit 15 can move away from the top of the sleeve 111, thereby increasing the height of the main unit 15; when the telescopic rod 112 retracts a certain length from the top of the sleeve 111, the main unit 15 can move closer to the top of the sleeve 111, thereby decreasing the height of the main unit 15.

[0029] Please refer to the relevant technologies. Figure 1 Because the probe 14 of the flow velocity measuring device 10 is fixedly mounted at the bottom of the bracket 11 and the main unit 15 is fixedly mounted at the top of the bracket 11, the heights of the probe 14 and the main unit 15 cannot be adjusted when using the flow velocity measuring device 10 to measure the flow velocity of the water body to be measured. This means that the probe 14 and the main unit 15 are only suitable for application scenarios with specific water depths. For example, when the water body to be measured is too shallow, the height of the probe 14 is higher than the water surface, and the probe 14 cannot be submerged in the water, making it impossible for the probe 14 to measure the flow velocity data. When the water body to be measured is too deep, the distance between the main unit 15 and the water surface is too close, and the height of the main unit 15 is too low, making it difficult for the user to observe the measured flow velocity data.

[0030] In this application, the bracket 11 is provided with a sleeve 111 and a telescopic rod 112, and the sleeve 111 is a hollow tubular structure and a clamp 12 is slidably fitted on the outside of the sleeve 111. The first end of the telescopic rod 112 is slidably inserted into the top of the sleeve 111 and a mounting base 13 is provided at the second end of the telescopic rod 112. The probe 14 is assembled on the clamp 12 and the main unit 15 is assembled on the mounting base 13. This structure allows the clamp 12 to slide along the axial direction of the sleeve 111, causing the probe 14 to move closer to the bottom of the sleeve 111 along the axial direction of the sleeve 111, thereby shortening the distance between the probe 14 and the bottom of the support 11, thus lowering the height of the probe 14; or, the clamp 12 can slide along the axial direction of the sleeve 111, causing the probe 14 to move away from the bottom of the sleeve 111 along the axial direction of the sleeve 111, thereby lengthening the distance between the probe 14 and the bottom of the support 11, thus raising the height of the probe 14. This allows for adjustment of the probe 14's height. This structure also allows the telescopic rod 112 to extend or retract at the top of the sleeve 111, causing the main unit 15 to move closer to or away from the top of the sleeve 111 along the axial direction of the telescopic rod 112, thereby correspondingly lowering or raising the height of the main unit 15. Based on this, the use of the flow velocity measuring device 10 is not limited by specific water depth scenarios, which is beneficial for the flow velocity measuring device 10 to meet the measurement needs of different water depth scenarios. For example, when the water depth of the area to be measured is too shallow, by sliding the clamp 12 toward the bottom of the sleeve 111, the distance between the probe 14 and the bottom of the sleeve 111 can be shortened, thereby lowering the height of the probe 14 so that the probe 14 is submerged in the water, thus measuring the flow velocity data; when the water depth of the area to be measured is too deep, by retracting the telescopic rod 112, the length of the telescopic rod 112 extending from the top of the sleeve 111 can be shortened, thereby lowering the height of the main unit 15 so that the user can observe the measured flow velocity data.

[0031] It should be noted that the embodiments in this application are only illustrated with two water depth scenarios, but are not limited thereto. Since the heights of probe 14 and main unit 15 are flexibly adjustable, the embodiments in this application can also be applied to other water depth scenarios; simply adjust the heights of probe 14 and main unit 15 according to the different water depth scenarios. For example, when the water depth of the area to be measured is too shallow, probe 14 cannot be submerged and the height of main unit 15 is too high, then it is necessary to simultaneously lower the heights of probe 14 and main unit 15 to adapt to the water depth scenario.

[0032] In practical applications, when measuring the flow velocity of water in the water body, the water flow will exert an impact force on the probe 14, which can easily cause the probe 14 to shake during the measurement process, thus affecting the accuracy of the measurement results. Using the clamp 12 to assemble the probe 14 allows for adjustment of the probe 14's height even when the clamp 12 is not tightly fastened to the sleeve 111. Once the probe 14 is adjusted to the appropriate height, the sleeve 111 is tightened, thus preventing the probe 14 from shaking due to water flow impact during the measurement process. Therefore, using the clamp 12 as the height adjustment component for the probe 14 simultaneously ensures both the height adjustment of the probe 14 and the secure mounting of the probe 14 to the sleeve 111.

[0033] The reason for choosing the telescopic rod 112 as the height adjustment component of the main unit 15 is as follows: During measurement, the main unit 15 is usually located on the water surface of the area to be measured, and the tightness requirement of the height adjustment component is not high. However, the height of the main unit 15 needs to be adjusted according to the water depth of the area to be measured. This requires that the adjustment method of the main unit 15 cannot be too complicated. If the clamp 12 is used as the height adjustment component of the main unit 15, special tools are needed to tighten or loosen the bolts on the clamp 12 during the adjustment process. The adjustment method is complicated and inconvenient for users to operate during the measurement process. However, by choosing the telescopic rod 112 as the height adjustment component of the main unit 15, users do not need to use special tools to operate the telescopic rod 112. Users only need to extend or retract the telescopic rod 112, making the adjustment process simpler and more convenient for users to adjust the height of the main unit 15 during the measurement process.

[0034] In one implementation, such as Figure 1 As shown, the telescopic rod 112 is a hollow rod-shaped structure. Multiple first limiting holes 112a are provided on the telescopic rod 112, and the multiple first limiting holes 112a are arranged at intervals along the axial direction of the telescopic rod 112. The top of the sleeve 111 is provided with a second limiting hole 111a, and a limiting rod 113 is inserted into the second limiting hole 111a. The limiting rod 113 is used to simultaneously pass through the second limiting hole 111a and the first limiting hole 112a directly opposite the second limiting hole 111a when the length of the telescopic rod 112 extending from the top of the sleeve 111 is adjusted to the target length.

[0035] The above solution, by setting the telescopic rod 112 as a hollow rod-shaped structure and providing multiple first limiting holes 112a arranged at intervals along the axial direction of the telescopic rod 112, and providing a second limiting hole 111a at the top of the sleeve 111, with the limiting rod 113 passing through the second limiting hole 111a, ensures that when the length of the telescopic rod 112 extending from the top of the sleeve 111 is adjusted, one of the multiple first limiting holes 112a is aligned with the second limiting hole 111a. Based on this, when the length of the telescopic rod 112 extending from the top of the sleeve 111 is adjusted to the target length, by simultaneously passing the limiting rod 113 through the second limiting hole 111a and the first limiting hole 112a aligned with the second limiting hole 111a, the length of the telescopic rod 112 extending from the top of the sleeve 111 can be limited and fixed, thereby limiting the height of the main unit 15 to the corresponding height.

[0036] In one implementation, such as Figure 2A As shown, the probe 14 includes a probe body 141 and two locking blocks 142 spaced apart at the bottom of the probe body 141. For example, the probe body 141 has a cuboid structure, and the two locking blocks 142 are spaced apart on the bottom surface of the probe body 141.

[0037] like Figure 2B As shown, the clamp component 12 includes two retaining rings 121, two first mating blocks 122, and two second mating blocks 124. Each retaining ring 121 and its corresponding first mating block 122 and second mating block 124 in the clamp component 12 are integrally formed. Each retaining ring 121 is arc-shaped, and the two retaining rings 121 together form a ring structure around the sleeve 111. Each first mating block 122 is fixedly connected to the outer wall of each retaining ring 121 and is positioned adjacent to the first end of the corresponding retaining ring 121. Both first mating blocks 122 are simultaneously penetrated by a first bolt 123 to detachably connect the first ends of the two retaining rings 121. Each first mating block 122 can be tangent to its corresponding retaining ring 121 to increase the contact area between the first bolt 123 and the two first mating blocks 122, thereby improving the tightness of the first bolt 123 in mating the first ends of the two retaining rings 121.

[0038] like Figure 2BAs shown, each second mating block 124 is placed on the outer wall of each retaining ring 121 and is located adjacent to the second end of the corresponding retaining ring 121. Each second mating block 124 has a slot 125 on its top for each retaining block 142 to engage. Two second mating blocks 124 and two retaining blocks 142 are simultaneously penetrated by second bolts 126 to detachably connect the second ends of the two retaining rings 121, and to detachably mount the probe 14 onto the two second mating blocks 124. Each second mating block 124 can be perpendicular to its corresponding retaining block 142, allowing the two second mating blocks 124 to extend radially along the annular structure formed by the two retaining rings 121, thus supporting the probe 14 and improving the stability of the probe 14 mounted on the two second mating blocks 124. Preferably, as... Figure 1 , Figure 2A and Figure 2B As shown, when the probe 14 is mounted on the clamp 12, the probe body 141 is perpendicular to the two second docking blocks 124.

[0039] The above solution involves providing a first mating block 122 on the outer side wall of each retaining ring 121 near its first end, and a second mating block 124 on the outer side wall of each retaining ring 121 near its second end. A first bolt 123 passes through two first mating blocks 122, and a second bolt 126 passes through two second mating blocks 124. This allows the two retaining rings 121 to be assembled onto the outside of the sleeve 111, forming a ring structure that secures the sleeve 111. Furthermore, by providing a slot 125 on the top of each second mating block 124, the probe 14 can be positioned one-to-one with the two retaining blocks 142. The probe 14 is detachably mounted on the two second docking blocks 124 by engaging with the slots 125 on the two docking blocks and then simultaneously passing through the two locking blocks 142 with the second bolt 126. During subsequent disassembly, after removing the second bolt 126, the probe 14 can be pulled upwards to disengage the two locking blocks 142 from the two slots 125, thus facilitating the user to remove the probe 14 individually and simplifying the disassembly process, thereby improving the disassembly efficiency of the probe 14.

[0040] In one implementation, such as Figure 2A and Figure 2B Each first mating block 122 has a first mounting hole 122a inside, and each first mounting hole 122a penetrates through the two end faces of the corresponding first mating block 122. The two first mounting holes 122a are coaxially arranged, and the first bolt 123 passes through the two first mounting holes 122a. In this way, the two first mating blocks 122 can be mated together, so as to achieve a detachable connection of the first ends of the two retaining rings 121.

[0041] Each locking block 142 is provided with a second mounting hole 142a, which penetrates both sides of the corresponding locking block 142 and is coaxially arranged. Each second mating block 124 is provided with a third mounting hole 124a, which penetrates both sides of the corresponding second mating block 124 and the end wall of the corresponding slot 125 and is coaxially arranged. When the two locking blocks 142 are engaged in the two slots 125 respectively, the two second mounting holes 142a and the two third mounting holes 124a are located on the same axis. The second bolt 126 passes through the two second mounting holes 142a and the two third mounting holes 124a. In this way, the two second mating blocks 124 can be mated to achieve a detachable connection of the second ends of the two retaining rings 121, and the probe 14 can be detachably mounted on the two second mating blocks 124 through the two locking blocks 142.

[0042] Preferably, such as Figure 2A and Figure 2B As shown, the walls of each of the two first assembly holes 122a are provided with internal threads, and the screw of the first bolt 123 (not marked in the attached figure) is provided with external threads. The external threads of the screw are threadedly connected to the internal threads of the two first assembly holes 122a.

[0043] In one implementation, such as Figure 3A As shown, the host 15 includes a host body 151 and two T-shaped plugs 152 spaced apart on the back of the host body 151. For example, the host body 151 may be a rectangular block structure, the two T-shaped plugs 152 may be spaced apart along the short side of the host body 151 and extend along the long side of the host body 151, and the front of the host 15 is provided with a display screen 151A for displaying the measured flow rate data.

[0044] like Figure 3B As shown, the mounting base 13 has a semi-cylindrical structure. The arc side of the mounting base 13 is provided with a mounting groove 13a. The mounting groove 13a extends along the axial direction of the mounting base 13 and passes through the upper surface 131 and the lower surface of the mounting base 13. Two T-shaped slots 13b are provided at intervals at the bottom of the mounting groove 13a. Two T-shaped plugs 152 are inserted into the two T-shaped slots 13b one by one to detachably install the main body 151 in the mounting groove 13a, so that the main body 151 is perpendicular to the mounting base 13 and the front of the main body 151 faces outward so that the user can observe the measured flow rate data.

[0045] The above-described solution involves two T-shaped inserts 152 spaced apart on the back of the main unit 151, and a mounting groove 13a extending axially along the upper and lower surfaces of the mounting base 13 on the curved side of the mounting base 13. Two T-shaped slots 13b are also spaced apart at the bottom of the mounting groove 13a. During assembly, the main unit 151 is fitted into the mounting groove 13a by inserting the two T-shaped inserts 152 into the corresponding T-shaped slots 13b, thus mounting the main unit 151 onto the mounting base 13. During disassembly, the two T-shaped inserts 152 are disengaged from the corresponding T-shaped slots 13b by pulling the main unit 151 upwards, allowing the entire main unit 151 to be removed from the mounting groove 13a and thus detached from the mounting base 13. Thus, during the use of the flow rate measuring device 10, the main unit 15 can be disassembled and assembled separately, simplifying the disassembly and assembly process of the main unit 15 and improving the disassembly and assembly efficiency of the flow rate measuring device 10.

[0046] In one implementation, such as Figure 3A As shown, each T-shaped insert 152 has a positioning post 153 at its bottom end, such as... Figure 3B As shown, each T-slot 13b penetrates the upper surface 131 of the mounting base 13 but not the lower surface. The end wall of each T-slot 13b is recessed towards the lower surface of the mounting base 13 to form a positioning hole 13c. The two positioning posts 153 are inserted and engaged with the two positioning holes 13c in a one-to-one correspondence. In this way, the main unit 151 can be positioned and fixed in the mounting groove 13a, which helps to improve the firmness and stability of the main unit 151 assembled on the mounting base 13.

[0047] In one implementation, such as Figure 4 As shown, the flow rate measuring device 10 also includes a base 17 disposed at the bottom of the sleeve 111. The base 17 includes a base body 171, a plurality of storage ports 172, a plurality of rotating shafts 173 and a plurality of insertion rods 174.

[0048] The base body 171 has a cylindrical structure, with multiple storage openings 172 spaced circumferentially around its periphery, each opening penetrating the upper surface 171a and lower surface 171b. Each pivot 173 is rotatably connected between the two sidewalls 172a of each storage opening 172. Multiple insert rods 174 are vertically mounted on the pivots 173, each corresponding to a specific opening; the length of each insert rod 174 is less than the radial dimension of the storage opening 172 on the base body 171. Preferably, the pivot 173 can be a damping pivot.

[0049] For example, the insertion rod 174 has a fixed end and a movable end. The fixed end of the insertion rod 174 is fixedly connected to the rotating shaft 173, and the movable end of the insertion rod 174 is the end of the insertion rod 174 away from the rotating shaft 173. The movable end of the insertion rod 174 has a conical structure, which makes it easy to insert the insertion rod 174 into the bottom of the water area to be measured.

[0050] In use, rotating the shaft 173 drives the corresponding insertion rod 174 to rotate. When the movable end of the insertion rod 174 rotates into the storage port 172, the insertion rod 174 is stored in the storage port 172 for easy storage. When the movable end of the insertion rod 174 rotates to the bottom of the base 17 and the insertion rod 174 is perpendicular to the base 17, the insertion rod 174 can be inserted into the bottom of the water area to be measured, so that the bracket 11 is erected vertically in the water area to be measured. In this way, the user does not need to hold the bracket 11 during the measurement process, which is convenient for the user to perform the measurement operation. In addition, inserting the insertion rod 174 into the bottom of the water area to be measured can also improve the stability of the bracket 11 and prevent the bracket 11 from shaking due to the impact of water flow, thereby helping to improve the accuracy of the measurement data.

[0051] In one implementation, such as Figure 4 As shown, a screw seat 175 is provided in the middle of the base body 171, and the base body 171 is screwed to the bottom of the sleeve 111 through the screw seat 175. In this way, by screwing the screw seat 175 of the base body 171 to the bottom of the sleeve 111, the base body 171 can be detachably installed at the bottom of the bracket 11.

[0052] In one implementation, such as Figure 1 As shown, probe 14 is an ultrasonic probe.

[0053] For example, the ultrasonic probe can be a Doppler ultrasonic probe. Doppler ultrasonic probes utilize the Doppler frequency shift principle to measure the flow velocity of water in a measured body of water. For instance, a Doppler ultrasonic probe emits ultrasonic waves towards solid particles or bubbles in the water flow and receives the ultrasonic waves reflected back from the solid particles. The flow velocity in the measured body of water is determined by utilizing the proportional relationship between the frequency difference between the emitted and received ultrasonic waves and the water flow velocity. Therefore, Doppler ultrasonic probes are very suitable for measuring watersheds containing solid particles or bubbles, such as natural rivers, artificial waterways, agricultural irrigation ditches, urban sewers, industrial wastewater outlets, and sewage treatment plants.

[0054] In the description of this specification, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0055] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0056] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0057] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A flow velocity measuring device, characterized in that, include: The bracket has a sleeve and a telescopic rod. The sleeve is a hollow tubular structure and a clamp is slidably fitted on the outside of the sleeve. The first end of the telescopic rod is slidably inserted into the top of the sleeve, and the second end of the telescopic rod is provided with a mounting seat. The device includes a probe mounted on the clamp and a main unit mounted on the mounting base. The probe is electrically connected to the main unit so that the probe transmits the measured water flow velocity data to the main unit for display.

2. The flow velocity measuring device according to claim 1, characterized in that, The telescopic rod is a hollow rod-shaped structure, and a plurality of first limiting holes are provided on the telescopic rod, which are arranged at intervals along the axial direction of the telescopic rod. A second limiting hole is provided at the top of the sleeve, and a limiting rod is inserted through the second limiting hole. The limiting rod is used to simultaneously pass through the second limiting hole and the first limiting hole directly opposite the second limiting hole when the length of the telescopic rod extending from the top of the sleeve is adjusted to the target length.

3. The flow velocity measuring device according to claim 1, characterized in that, The probe includes a probe body and two locking blocks spaced apart at the bottom of the probe body. The clamping component includes: Two retaining rings, each of which is arc-shaped, and the two retaining rings together form a ring structure around the outside of the sleeve; Two first mating blocks are fixedly connected to the outer side wall of each of the retaining rings and are respectively disposed adjacent to the first end of the corresponding retaining ring. The two first mating blocks are simultaneously penetrated by a first bolt to detachably connect the first ends of the two retaining rings. Two second docking blocks are provided, each second docking block is disposed on the outer side wall of each of the retaining rings and is disposed adjacent to the second end of the corresponding retaining ring. Each second docking block is provided with a slot on its top for each retaining block to engage. The two second docking blocks and the two retaining blocks are simultaneously penetrated by a second bolt to detachably connect the second ends of the two retaining rings and detachably assemble the probe onto the two second docking blocks.

4. The flow velocity measuring device according to claim 3, characterized in that, Each of the first docking blocks is tangentially disposed to the corresponding retaining ring; and / or, each of the second docking blocks is perpendicular to the corresponding retaining ring.

5. The flow velocity measuring device according to claim 3, characterized in that, Each of the first mating blocks has a first assembly hole inside, each of the first assembly holes penetrates the two end faces of the corresponding first mating block, and the two first assembly holes are coaxially arranged, and the first bolt passes through the two first assembly holes. Each of the aforementioned card blocks is provided with a second mounting hole, each second mounting hole penetrating through the two sides of the corresponding card block, and the two second mounting holes are coaxially arranged. Each of the second mating blocks is provided with a third mounting hole, each third mounting hole penetrating through the two sides of the corresponding second mating block and the end wall of the corresponding card slot, and the two third mounting holes are coaxially arranged. When the two card blocks are correspondingly engaged in the two card slots, the two second mounting holes and the two third mounting holes are located on the same axis, and the second bolt passes through the two second mounting holes and the two third mounting holes.

6. The flow velocity measuring device according to claim 1, characterized in that, The host includes a host body and two T-shaped plugs spaced apart on the back of the host body; the mounting base is a semi-cylindrical structure, and the arc side of the mounting base is provided with a mounting groove, which extends along the axial direction of the mounting base and penetrates the upper and lower surfaces of the mounting base. The bottom of the mounting groove is provided with two T-shaped slots spaced apart; the two T-shaped plugs are inserted into the two T-shaped slots one by one to detachably install the host body in the mounting groove.

7. The flow velocity measuring device according to claim 6, characterized in that, Each of the T-shaped inserts has a positioning post at its bottom end. Each of the T-shaped slots penetrates the upper surface of the mounting base but does not penetrate the lower surface of the mounting base. The end wall of each T-shaped slot is recessed towards the lower surface of the mounting base to form a positioning hole. The two positioning posts and the two positioning holes are inserted and engaged in a one-to-one correspondence.

8. The flow velocity measuring device according to claim 1, characterized in that, The flow velocity measuring device further includes a base disposed at the bottom of the sleeve, the base comprising: The base itself has a cylindrical structure; Multiple storage openings are spaced apart around the periphery of the base body and extend through the upper and lower surfaces of the base body. Multiple rotating shafts, each of which is rotatably connected between two side walls of each of the storage openings; Multiple insertion rods are vertically arranged on multiple rotating shafts, one-to-one correspondence; The length of the insertion rod is less than the radial dimension of the storage opening on the base body.

9. The flow velocity measuring device according to claim 8, characterized in that, A screw seat is provided in the middle of the base body, and the base body is screwed to the bottom of the sleeve through the screw seat.

10. The flow velocity measuring device according to any one of claims 1 to 9, characterized in that, The probe is an ultrasonic probe.

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