An open channel flow meter

Abstract

The present invention relates to the technical field of flowmeters, and in particular to an open channel flowmeter, comprising a fixed pile assembly, a second straightening mechanism being connected to the center of the fixed pile assembly, columns being arranged on both sides of the second straightening mechanism, a pressing mechanism being connected through the columns, a first fixing mechanism being connected to the top of the columns, a flowmeter being arranged below the pressing mechanism, and a sharp bottom of the mounting column on the flowmeter. The present invention completes installation and disassembly of the open channel flowmeter by moving the pressing mechanism up and down, ensures that no tilting occurs during the installation process by the second straightening mechanism, and completes mobile installation of the open channel flowmeter by the fixed pile assembly.

Description

Technical Field

[0001] The invention relates to the technical field of flowmeters, in particular to an open channel flowmeter. Background Art

[0002] In the fields of water conservancy projects, environmental monitoring, agricultural irrigation, etc., accurately measuring water flow has always been a vital link. In agricultural irrigation, it is sometimes necessary to install an open channel flowmeter to calculate the water flow. During installation, the open channel flowmeter is usually installed on the side of the canal that needs to be measured by cement pouring. The cement pouring used in this installation method requires a certain area of ​​arable land and causes certain pollution to the surrounding arable land. The subsequent disassembly is also more complicated, and the already poured cement table needs to be destroyed before it can be taken out. The open channel flowmeter in the present invention can be installed and fixed without using cement pouring. Summary of the invention

[0003] In order to overcome the deficiencies of the prior art, the present invention provides an open channel flow meter.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: an open channel flow meter, comprising a fixed pile assembly, a second straightening mechanism is connected to the center of the fixed pile assembly, columns are arranged on both sides of the second straightening mechanism, a pressing mechanism is connected through the columns, a first fixing mechanism is connected to the top of the columns, a flow meter is arranged below the pressing mechanism, the bottom of the mounting column on the flow meter is sharp, the first fixing mechanism comprises a movable sleeve column, a fixed sleeve column is sleeved on the outside of the movable sleeve column, a fixed panel is fixedly connected below the fixed sleeve column, first fixing members are arranged at both ends of the fixed panel, and the movable sleeve column passes through the fixed panel;

[0005] The pressing mechanism comprises a rotating head, a driving motor is arranged in the rotating head, a pressing column is fixedly connected to the lower part of the rotating head, a thread is arranged on the outer ring of the pressing column, a pressing movable plate is fixedly connected to the lower part of the pressing column, second fixing members are symmetrically arranged at both ends of the pressing movable plate, a circular hole is opened on the second fixing member, the inner wall diameter of the circular hole opened on the second fixing member is the same as the diameter of the column, a first straightening mechanism is fixedly connected to the lower bottom surface of the pressing movable plate, and the shape of the first straightening mechanism is the same as the shape of the second straightening mechanism;

[0006] The fixed pile assembly comprises a pile platform, and two fastening kits are arranged on the pile platform, and the two fastening kits are symmetrically distributed on the pile platform;

[0007] The second righting mechanism includes a righting handle, and there are three righting handles in total. One end of the three righting handles is connected to the fixed base, and the other end of the three righting handles is connected to the double-layer turntable. The three righting handles are distributed in a ring shape with the center of the fixed base as the center of the circle.

[0008] As a preferred technical solution of the present invention, the movable sleeve column includes a ring B, which is a hollow annular tube, and the inner wall of the ring B is provided with a thread groove, and the two ends of the ring B are respectively provided with a ring A and a ring C, and the ring A and the ring C are hollow annular tubes, and the shapes of the ring A and the ring C are the same, and the inner ring diameters of the ring A, the ring B and the ring C are the same, and the outer ring diameters of the ring A and the ring C are larger than the outer ring diameter of the ring B;

[0009] The fixed sleeve column comprises a column body, the column body is provided with a circular hole, the diameter of the circular hole is the same as the outer diameter of the ring B, and the outer diameters of the ring A and the ring C are the same as the outer diameter of the column body.

[0010] As a preferred technical solution of the present invention, the fastening kit includes an adjusting rod, a fastening sleeve is arranged below the adjusting rod, and the adjusting rod is spirally connected to the fastening sleeve.

[0011] As a preferred technical solution of the present invention, the adjusting rod comprises a rotating flower head, a circular hole is formed on the rotating flower head, a rotating rod is fixedly connected below the rotating flower head, a thread is formed on the outer ring of the rotating rod, a circular hole is formed inside the rotating flower head, and the circular hole on the rotating flower head has the same diameter as the circular hole on the rotating rod;

[0012] The fastening sleeve includes a double-layer sleeve column, the upper end of the double-layer sleeve column is provided with a groove adapted to the outer circle thread on the rotating rod, the bottom of the double-layer sleeve column is connected to a pressure-bearing column, and the upper part of the pressure-bearing column is fixedly connected to a fastening column. There are four fastening columns in total, and a fastening tip is fixedly connected to the upper part of each fastening column. The four fastening tips are distributed in a ring shape with the center of the pressure-bearing column as the center of the circle, and the fastening tips and the fastening columns are elastic.

[0013] As a preferred technical solution of the present invention, the fixed base includes a hollow seat, and three connecting pins are fixedly connected to the hollow seat, and the three connecting pins are annularly surrounded and fixedly connected to the outer ring of the hollow seat;

[0014] The straightening handle comprises a double-ended arc-shaped plate, the upper surface of one end of the double-ended arc-shaped plate is fixedly connected to the second connecting column, and the lower surface of the other end of the double-ended arc-shaped plate is fixedly connected to the first connecting column;

[0015] The double-layer turntable includes a first rotating ring, on which three connecting arc blocks are fixedly connected. The three connecting arc blocks are distributed in a ring shape with the center of the first rotating ring as the center of the circle, and the connecting arc blocks are fixedly connected to a second rotating ring.

[0016] As a preferred technical solution of the present invention, the hollow seat comprises: three connection blocks are fixedly connected to the inner ring, a first connection ring is fixedly connected to the center of the connection block, a second connection ring is fixedly connected to the upper surface of the first connection ring, and the first connection ring and the second connection ring are both provided with circular holes of the same diameter;

[0017] The connecting pin comprises a grooved block, to which an arc-shaped plate is fixedly connected, and the grooved block is in a concave shape. A connecting groove is arranged in the groove of the grooved block, and the connecting groove is adapted to the first connecting column.

[0018] As a preferred technical solution of the present invention, the second rotating ring includes a rotating ring platform, and three slots are formed on the rotating ring platform, and the diameters of the slots are adapted to the second connecting column.

[0019] Compared with the prior art, the present invention can achieve the following beneficial effects:

[0020] 1. This open channel flowmeter starts to rotate by turning on the driving motor on the rotating head. The rotation of the rotating head drives the rotation of the lower pressure column fixedly connected to the rotating head. Through the cooperation of the external thread on the lower pressure column and the thread groove, the lower pressure column starts to move downward. The lower pressure column is fixedly connected to the lower pressure movable plate. The lower pressure movable plate starts to move downward. The lower bottom surface of the lower pressure movable plate contacts the installation column on the flowmeter to be installed. When the lower pressure movable plate moves downward, the top of the installation column on the flowmeter that contacts the lower bottom surface of the lower pressure movable plate is subjected to downward pressure. The bottom of the installation column on the flow meter starts to move continuously under the soil during the downward movement. The bottom of the installation column on the flow meter is set to a sharp shape, which can enter the soil more easily. When it is pressed down to the appropriate position, the rotation of the rotating head is stopped, and the open channel flow meter is completed to detect the water flow in the open channel on one side of the open channel. This method replaces the traditional installation method of cement pouring, installation or screw welding, does not pollute the farmland soil near the open channel, and at the same time reduces the installation steps, simplifies the installation process, and makes the installation of the open channel flow meter more convenient and quick.

[0021] 2. For this type of open channel flowmeter, after the column is installed, align the bottom surface of the installation column on the flowmeter with the second connecting ring. After alignment, turn the righting handle, the righting handle rotates, the first connecting column is connected to the connecting groove, the second connecting column is connected to the slot hole, the first rotating ring is sleeved between the arc plate and, when the righting handle rotates, the double-headed arc plate approaches toward the center of the rotating ring table through the rotation cooperation of the rotating ring table until the double-headed arc plate contacts the installation column on the flowmeter, and the lower end of the installation column on the flowmeter is clamped by three righting handles, ensuring that the installation column on the open channel flowmeter will not fall over or tilt when it does not safely enter the soil layer, thereby improving the measurement accuracy of the flowmeter.

[0022] 3. This open channel flowmeter is installed by placing the fixed pile assembly at the position where it needs to be installed. After it is placed, the rotating flower head is rotated, and the rotating rod set on the rotating flower head cooperates with the double-layer sleeve column in the fastening sleeve to rotate the rotating flower head upward. After the rotating flower head is rotated out, the fastening of the fastening tip by the rotating flower head is loosened, and the fastening tip is in a relaxed state. The column is connected to the fastening kit through the round hole on the rotating flower head. When the column enters the annular ring formed by the four fastening tips, it continues to move downward until it contacts the pressure-bearing column. The staff rotates the rotating flower head again, and the rotating flower head drives the rotating rod fixedly connected to the rotating flower head to rotate. The rotating rod and the fastening tip gradually approach until the fastening tip is surrounded by the rotating rod and stops rotating. The column is stably installed on the pile platform. The fastening of the column by the fastening kit prevents the column from tilting on the fixed pile assembly, ensuring that the subsequent pressing mechanism can slide along a straight line when sliding on the column, and at the same time ensuring that the installation column on the open channel flowmeter will not be deflected or unevenly stressed when pressed down.

[0023] 4. This open channel flowmeter ensures that the installation columns on the flowmeter are always on a vertical line during the downward pressure process by setting the second righting mechanism to have the same structure as the first righting mechanism and setting the first righting mechanism and the second righting mechanism on the same vertical line. At the same time, by adjusting the tightness of the second righting mechanism and the first righting mechanism, the downward pressure installation and upward pull-up removal of the open channel flowmeter can be completed, which is convenient and labor-saving, and the open channel flowmeter can be used multiple times.

[0024] 5. This open channel flowmeter is provided with columns at both ends of the second straightening mechanism, and two second fixing parts are provided on the downward pressing movable plate. The second fixing parts are matched with the columns to complete the up and down sliding of the second fixing parts on the columns. The up and down sliding of the second fixing parts on the columns completes the squeezing of the downward pressing movable plate on the mounting column on the flowmeter, and at the same time increases the stability of the downward pressing movable plate sliding on the columns.

[0025] 6. This open channel flowmeter, by setting a fixed pile assembly, when the installation position is determined, the fixed pile assembly can be moved, and the column can be installed on the basis of the fixed pile assembly, so that the installation is more flexible, and the column and the first fixing mechanism can be disassembled and then assembled without taking up space. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the structure of the present invention after installation beside an open channel;

[0027] Figure 2 It is a schematic diagram of the overall side structure of the present invention;

[0028] Figure 3 It is a front structural schematic diagram of the present invention;

[0029] Figure 4 This is a schematic diagram of the overall structure of the present invention when the flow meter is not installed;

[0030] Figure 5 It is a structural schematic diagram of the first fixing mechanism of the present invention;

[0031] Figure 6 It is a schematic diagram of the exploded structure of the first fixing mechanism of the present invention;

[0032] Figure 7 It is a schematic diagram of the specific structure of the pressing mechanism of the present invention;

[0033] Figure 8 It is a schematic diagram of the exploded structure of the pressing mechanism of the present invention;

[0034] Fig. 9 It is a schematic diagram of the specific structure of the fixed pile assembly of the present invention;

[0035] Fig.10 It is a schematic diagram of the specific structure of the fastening kit of the present invention;

[0036] Fig.11 is a schematic cross-sectional structure diagram of the fastening kit of the present invention;

[0037] Fig.12 It is a front structural schematic diagram of the second righting mechanism of the present invention;

[0038] Fig.13 is a schematic diagram of the exploded structure of the second righting mechanism of the present invention;

[0039] Fig.14 It is a schematic diagram of the specific structure of the hollow seat of the present invention;

[0040] Fig.15 It is a schematic diagram of the specific structure of the connecting pin of the present invention;

[0041] Fig.16It is a schematic diagram of the specific structure of the second rotating ring of the present invention.

[0042] Among them: 1. First fixing mechanism; 11. Movable sleeve column; 111. Ring A; 112. Ring B; 113. Threaded groove; 114. Ring C; 12. Fixed sleeve column; 121. Column body; 122. Round hole; 13. Fixed panel; 14. First fixing piece; 2. Pressing mechanism; 21. Rotating head; 22. Pressing column; 23. Pressing movable plate; 24. Second fixing piece; 25. First straightening mechanism; 3. Flow meter; 4. Fixed pile assembly; 41. Pile platform; 42. Fastening kit; 421. Adjusting rod; 4211. Rotating flower head; 4212. Rotating rod; 422. Fastening sleeve; 4221. Double-layer sleeve column; 4222. Fastening tip Head; 4223, fastening column; 4224, pressure seat; 5, second straightening mechanism; 51, fixed base; 511, hollow seat; 5111, circular column; 5112, connecting block; 5113, first connecting ring; 5114, second connecting ring; 512, connecting pin; 5121, grooved block; 5122, arc plate; 5123, connecting groove; 52, straightening handle; 521, first connecting column; 522, double-headed arc plate; 523, second connecting column; 53, double-layer turntable; 531, first rotating ring; 532, connecting arc block; 533, second rotating ring; 5331, rotating ring platform; 5332, slot; 6, column. DETAILED DESCRIPTION

[0043] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work all belong to the protection scope of the present invention. The experimental methods in the following embodiments, unless otherwise specified, are conventional methods, and the materials, reagents, etc. used in the following embodiments, unless otherwise specified, can all be obtained from commercial channels.

[0044] Embodiment: Figure 1-Figure 16 As shown, an open channel flow meter comprises a fixed pile assembly 4, a second straightening mechanism 5 is connected to the center of the fixed pile assembly 4, columns 6 are arranged on both sides of the second straightening mechanism 5, a pressing mechanism 2 is connected through the columns 6, a first fixing mechanism 1 is connected to the top of the columns 6, a flow meter 3 is arranged below the pressing mechanism 2, the bottom of the mounting column on the flow meter 3 is sharp, the first fixing mechanism 1 comprises a movable sleeve column 11, a fixed sleeve column 12 is sleeved on the outside of the movable sleeve column 11, a fixed panel 13 is fixedly connected below the fixed sleeve column 12, first fixing members 14 are arranged at both ends of the fixed panel 13, and the movable sleeve column 11 passes through the fixed panel 13;

[0045] The pressing mechanism 2 includes a rotating head 21, a driving motor is arranged inside the rotating head 21, a pressing column 22 is fixedly connected to the bottom of the rotating head 21, a thread is arranged on the outer ring of the pressing column 22, a pressing movable plate 23 is fixedly connected to the bottom of the pressing column 22, second fixing members 24 are symmetrically arranged at both ends of the pressing movable plate 23, a circular hole is opened on the second fixing member 24, the inner wall diameter of the circular hole opened on the second fixing member 24 is the same as the diameter of the column 6, and a first straightening mechanism 25 is fixedly connected to the lower bottom surface of the pressing movable plate 23, and the shape of the first straightening mechanism 25 is the same as the shape of the second straightening mechanism 5;

[0046] The fixed pile assembly 4 includes a pile base 41, and two fastening kits 42 are arranged on the pile base 41. The two fastening kits 42 are symmetrically distributed on the pile base 41;

[0047] The second righting mechanism 5 includes a righting handle 52, and there are three righting handles 52 in total. One end of the three righting handles 52 is connected to the fixed base 51, and the other end of the three righting handles 52 is connected to the double-layer turntable 53. The three righting handles 52 are distributed in a ring shape with the center of the fixed base 51 as the center of the circle.

[0048] The movable sleeve 11 includes a ring B112, which is a hollow annular tube. A thread groove 113 is provided on the inner wall of the ring B112. Rings A111 and C114 are provided at both ends of the ring B112, respectively. The rings A111 and C114 are hollow annular tubes. The rings A111 and C114 have the same shape. The inner ring diameters of the rings A111, B112 and C114 are the same. The outer ring diameters of the rings A111 and C114 are larger than the outer ring diameter of the ring B112.

[0049] The fixed sleeve column 12 includes a column body 121 , and the column body 121 is provided with a circular hole 122 . The diameter of the circular hole 122 is the same as the outer diameter of the ring B112 . The outer diameters of the ring A111 and the ring C114 are the same as the outer diameter of the column body 121 .

[0050] The fastening kit 42 includes an adjusting rod 421 , a fastening sleeve 422 is disposed below the adjusting rod 421 , and the adjusting rod 421 is spirally connected to the fastening sleeve 422 .

[0051] The adjusting rod 421 includes a rotating flower head 4211, a circular hole is formed on the rotating flower head 4211, a rotating rod 4212 is fixedly connected to the lower part of the rotating flower head 4211, a thread is formed on the outer ring of the rotating rod 4212, a circular hole is formed inside the rotating flower head 4211, and the circular hole on the rotating flower head 4211 has the same diameter as the circular hole on the rotating rod 4212;

[0052] The fastening sleeve 422 includes a double-layer sleeve column 4221, the upper end of which is provided with a groove adapted to the outer circle thread on the rotating rod 4212, the bottom of the double-layer sleeve column 4221 is connected to a pressure-bearing column 4224, and a fastening column 4223 is fixedly connected above the pressure-bearing column 4224. There are four fastening columns 4223 in total, and a fastening tip 4222 is fixedly connected above each of the fastening columns 4223. The four fastening tips 4222 are distributed in a ring shape with the center of the pressure-bearing column 4224 as the center, and the fastening tips 4222 and the fastening columns 4223 are elastic.

[0053] The fixed base 51 includes a hollow seat 511, and three connecting pins 512 are fixedly connected to the hollow seat 511. The three connecting pins 512 are annularly surrounded and fixedly connected to the outer ring of the hollow seat 511;

[0054] The straightening handle 52 includes a double-ended curved plate 522, a second connecting column 523 is fixedly connected to the upper surface of one end of the double-ended curved plate 522, and a first connecting column 521 is fixedly connected to the lower surface of the other end of the double-ended curved plate 522;

[0055] The double-layer turntable 53 includes a first rotating ring 531 , to which three connecting arc blocks 532 are fixedly connected. The three connecting arc blocks 532 are distributed in a ring shape with the center of the first rotating ring 531 as the center of the circle, and a second rotating ring 533 is fixedly connected to the connecting arc block 532 .

[0056] The hollow seat 511 comprises 5111, three connecting blocks 5112 are fixedly connected to the inner ring of the 5111, a first connecting ring 5113 is fixedly connected to the center of the connecting block 5112, a second connecting ring 5114 is fixedly connected to the upper surface of the first connecting ring 5113, and circular holes with the same diameter are opened on the first connecting ring 5113 and the second connecting ring 5114;

[0057] The connecting pin 512 includes a grooved block 5121, to which an arc-shaped plate 5122 is fixedly connected. The grooved block 5121 is in a concave shape, and a connecting groove 5123 is provided in the groove of the grooved block 5121. The connecting groove 5123 is adapted to the first connecting column 521.

[0058] The second rotating ring 533 includes a rotating ring base 5331 . The rotating ring base 5331 is provided with three slots 5332 . The diameter of the slots 5332 matches the diameter of the second connecting column 523 .

[0059] Working principle:

[0060] The first step is that in agricultural irrigation, it is sometimes necessary to install an open channel flow meter to calculate the water flow. During installation, the open channel flow meter is usually installed on the side of the canal that needs to be measured by cement pouring. The cement pouring used in this installation method requires a certain area of ​​arable land and causes certain pollution to the surrounding arable land. The subsequent disassembly is also more complicated, and the already poured cement table needs to be destroyed before it can be taken out. The open channel flow meter in the present invention does not need to be poured with cement to install and fix the open channel flow meter.

[0061] In the second step, after the installer determines the installation position, the fixing pile assembly 4 is placed at the position where it needs to be installed. After it is placed, the rotating flower head 4211 is rotated, and the rotating rod 4212 provided on the rotating flower head 4211 cooperates with the double-layer sleeve column 4221 in the fastening sleeve 422, and the rotating flower head 4211 is screwed out upward. After the rotating flower head 4211 is screwed out, the fastening of the fastening tip 4222 by the rotating flower head 4211 is loosened, and the fastening tip 4222 is in a relaxed state, and the vertical pile assembly 4211 is fixed to the fixing pile assembly 4211 through the round hole on the rotating flower head 4211. The column 6 is connected to the fastening kit 42. When the column 6 enters the annular ring formed by the four fastening spikes 4222, it continues to move downward until it contacts the pressure column 4224. The staff rotates the rotating flower head 4211 again. The rotating flower head 4211 drives the rotating rod 4212 fixedly connected to the rotating flower head 4211 to rotate. The rotating rod 4212 and the fastening spikes 4222 gradually approach each other until the fastening spikes 4222 are surrounded by the rotating rod 4212. At this time, the rotation stops and the column 6 is stably installed on the pile platform 41.

[0062] The third step, after the column 6 is installed, align the bottom surface of the installation column on the flow meter 3 with the second connecting ring 5114. After alignment, turn the righting handle 52, the righting handle 52 rotates, the first connecting column 521 is connected to the connecting groove 5123, the second connecting column 523 is connected to the slot 5332, the first rotating ring 531 is sleeved between the arc plates 5122 and 5111, when the righting handle 52 rotates, the double-headed arc plate 522 is coordinated with the rotation of the rotating ring stage 5331, and approaches the center of the rotating ring stage 5331 until the double-headed arc plate 522 contacts the installation column on the flow meter 3, and the lower end of the installation column on the flow meter 3 is clamped by the three righting handles 52.

[0063] In the fourth step, the top of the column 6 is fixedly connected to the fixed panel 13 through the first fixing members 14 set at both ends of the first fixing mechanism 1, and the diameter of the ring A111 and the ring C114 is larger than the diameter of the column body 121, and the movable sleeve column 11 is sleeved on the column body 121 through the circular hole 122, and the outer thread on the lower pressure column 22 is matched with the thread groove 113 on the movable sleeve column 11, and the lower pressure column 22 is sleeved in the movable sleeve column 11, and the rotation of the lower pressure column 22 in the thread groove 113 is completed by rotating the rotating head 21, so that the lower pressure column 22 can be moved up and down. Movement, a downward pressing movable plate 23 is fixedly connected below the downward pressing column 22, and the upward and downward movement of the downward pressing movable plate 23 is driven by the upward and downward movement of the downward pressing column 22. A first straightening mechanism 25 is fixedly connected to the lower bottom surface of the downward pressing movable plate 23. The structure of the first straightening mechanism 25 is the same as that of the second straightening mechanism 5. Align the top of the mounting column on the flow meter 3 with the first straightening mechanism 25. The steps for operating the first straightening mechanism 25 are the same as the steps for operating the second straightening mechanism 5. Through the operation, the top of the mounting column on the flow meter 3 is fastened in the first straightening mechanism 25.

[0064] The fifth step is to turn on the driving motor on the rotating head 21, and the rotating head 21 starts to rotate. The rotation of the rotating head 21 drives the rotation of the pressing column 22 fixedly connected to the rotating head 21. Through the cooperation of the external thread on the pressing column 22 and the thread groove 113, the pressing column 22 starts to move downward, and the pressing column 22 is fixedly connected to the pressing movable plate 23. The pressing movable plate 23 starts to move downward, and the lower bottom surface of the pressing movable plate 23 contacts the mounting column on the flow meter 3 to be installed. When the pressing movable plate 23 moves downward, the top of the mounting column on the flow meter 3 that contacts the lower bottom surface of the pressing movable plate 23 is subjected to downward pressure and moves downward, and the bottom of the mounting column on the flow meter 3 starts to move continuously under the soil. The bottom of the mounting column on the flow meter 3 is set to a sharp shape, which can enter the soil more easily. When it is pressed down to a suitable position, the rotation of the rotating head 21 is stopped. At this time, the flow meter 3 will be firmly installed on one side of the open channel to detect the water flow in the open channel.

[0065] The sixth step, when the section of the open channel does not need to be inspected, first rotate the double-headed arc plate 522 to make the three straightening handles 52 loosen the lower half of the mounting column on the flow meter 3, and then rotate the rotating head 21, and move upward through the cooperation of the rotating head 21 and the threaded groove 113. Since the first straightening mechanism 25 is not relaxed, the first straightening mechanism 25 will still tighten the mounting column on the flow meter 3. When the lower pressure column 22 moves upward, the lower pressure movable plate 23 fixedly connected to the lower pressure column 22 will also move upward. The first straightening mechanism 25 fixedly connected under the lower pressure movable plate 23 moves upward with the lower pressure movable plate 23, and the mounting column on the flow meter 3 clamped by the first straightening mechanism 25 rises with the rise of the first straightening mechanism 25. Finally, driven by the upward movement of the first straightening mechanism 25, the mounting column on the flow meter 3 is pulled out of the soil layer, and the disassembly of the open channel flow meter is completed.

[0066] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made within the knowledge scope of technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. An open channel flow meter, comprising a fixed pile assembly (4), a second straightening mechanism (5) being connected at the center of the fixed pile assembly (4), columns (6) being arranged on both sides of the second straightening mechanism (5), a pressing mechanism (2) penetrating through the columns (6), a first fixing mechanism (1) being connected at the top of the columns (6), a flow meter (3) being arranged below the pressing mechanism (2), the bottom of the mounting column on the flow meter (3) being sharp, and characterized in that: The first fixing mechanism (1) comprises a movable sleeve column (11), the outer portion of the movable sleeve column (11) is sleeved with a fixed sleeve column (12), the lower portion of the fixed sleeve column (12) is fixedly connected with a fixed panel (13), both ends of the fixed panel (13) are provided with first fixing members (14), and the movable sleeve column (11) passes through the fixed panel (13); The pressing mechanism (2) comprises a rotating head (21), a driving motor is arranged inside the rotating head (21), a pressing column (22) is fixedly connected below the rotating head (21), a thread is arranged on the outer ring of the pressing column (22), a pressing movable plate (23) is fixedly connected below the pressing column (22), second fixing members (24) are symmetrically arranged at both ends of the pressing movable plate (23), a circular hole is opened on the second fixing member (24), the inner wall diameter of the circular hole opened on the second fixing member (24) is the same as the diameter of the column (6), and a first straightening mechanism (25) is fixedly connected to the lower bottom surface of the pressing movable plate (23), and the shape of the first straightening mechanism (25) is the same as the shape of the second straightening mechanism (5); The fixed pile assembly (4) comprises a pile platform (41), on which two fastening kits (42) are arranged, and the two fastening kits (42) are symmetrically distributed on the pile platform (41); The second righting mechanism (5) comprises a righting handle (52), wherein three righting handles (52) are provided in total, one end of the three righting handles (52) is connected to the fixed base (51), and the other end of the three righting handles (52) is connected to the double-layer turntable (53), and the three righting handles (52) are distributed in a ring shape with the center of the fixed base (51) as the center of the circle.

2. An open channel flow meter according to claim 1, characterized in that: The movable sleeve column (11) comprises a ring B (112), the ring B (112) being a hollow annular tube, the inner wall of the ring B (112) being provided with a thread groove (113), the two ends of the ring B (112) being provided with a ring A (111) and a ring C (114), respectively, the ring A (111) and the ring C (114) being hollow annular tubes, the ring A (111) and the ring C (114) being of the same shape, the inner ring diameters of the ring A (111), the ring B (112) and the ring C (114) being the same, and the outer ring diameters of the ring A (111) and the ring C (114) being larger than the outer ring diameter of the ring B (112); The fixed sleeve column (12) comprises a column body (121), the column body (121) being provided with a circular hole (122), the diameter of the circular hole (122) being the same as the outer diameter of the ring B (112), and the outer diameters of the ring A (111) and the ring C (114) being the same as the outer diameter of the column body (121).

3. An open channel flow meter according to claim 1, characterized in that: The fastening kit (42) comprises an adjusting rod (421), a fastening sleeve (422) is arranged below the adjusting rod (421), and the adjusting rod (421) and the fastening sleeve (422) are spirally connected.

4. An open channel flow meter according to claim 3, characterized in that: The adjusting rod (421) comprises a rotating flower head (4211), a circular hole is formed on the rotating flower head (4211), a rotating rod (4212) is fixedly connected to the lower part of the rotating flower head (4211), a thread is formed on the outer ring of the rotating rod (4212), a circular hole is formed inside the rotating flower head (4211), and the circular hole on the rotating flower head (4211) has the same diameter as the circular hole on the rotating rod (4212); The fastening sleeve (422) comprises a double-layer sleeve column (4221), the upper end of the double-layer sleeve column (4221) is provided with a groove adapted to the outer circle thread on the rotating rod (4212), the bottom of the double-layer sleeve column (4221) is connected to a pressure-bearing column (4224), the upper part of the pressure-bearing column (4224) is fixedly connected to a fastening column (4223), a total of four fastening columns (4223) are provided, each of the fastening columns (4223) is fixedly connected to a fastening tip (4222) at the upper part, the four fastening tips (4222) are distributed in a ring shape with the center of the pressure-bearing column (4224) as the center of the circle, and the fastening tips (4222) and the fastening columns (4223) are elastic.

5. An open channel flow meter according to claim 1, characterized in that: The fixed base (51) comprises a hollow seat (511), and three connecting pins (512) are fixedly connected to the hollow seat (511), and the three connecting pins (512) are annularly surrounded and fixedly connected to the outer ring of the hollow seat (511); The straightening handle (52) comprises a double-ended arc-shaped plate (522), the upper surface of one end of the double-ended arc-shaped plate (522) being fixedly connected to a second connecting column (523), and the lower surface of the other end of the double-ended arc-shaped plate (522) being fixedly connected to a first connecting column (521); The double-layer turntable (53) comprises a first rotating ring (531), three connecting arc blocks (532) are fixedly connected to the first rotating ring (531), the three connecting arc blocks (532) are distributed in a ring shape with the center of the first rotating ring (531) as the center of the circle, and a second rotating ring (533) is fixedly connected to the connecting arc block (532).

6. An open channel flow meter according to claim 5, characterized in that: The hollow seat (511) comprises (5111), three connecting blocks (5112) are fixedly connected to the inner ring of the (5111), a first connecting ring (5113) is fixedly connected to the center of the connecting block (5112), a second connecting ring (5114) is fixedly connected to the upper surface of the first connecting ring (5113), and circular holes with the same diameter are provided on the first connecting ring (5113) and the second connecting ring (5114); The connecting pin (512) comprises a grooved block (5121), to which an arc-shaped plate (5122) is fixedly connected, the grooved block (5121) is in a "concave" shape, a connecting groove (5123) is arranged in the groove of the grooved block (5121), and the connecting groove (5123) is adapted to fit the first connecting column (521).

7. An open channel flow meter according to claim 5, characterized in that: The second rotating ring (533) comprises a rotating ring platform (5331), and three slots (5332) are provided on the rotating ring platform (5331). The diameter of the slots (5332) is adapted to match the second connecting column (523).

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