Doppler flowmeter mounting device used in inspection well

Abstract

The Doppler flowmeter mounting device comprises a supporting rod, a supporting sleeve, a Doppler flowmeter and a mounting assembly, the Doppler flowmeter is mounted at the lower end of the supporting rod, the supporting sleeve is arranged on the peripheral side of the supporting rod in a sleeving mode, and the mounting assembly comprises a first mounting plate and two first supporting frames; the first mounting plate is fixedly connected with the supporting sleeve, the first mounting plate is connected with a well wall through expansion bolts, the two first supporting frames are hinged to the first mounting plate and located on the two sides of the supporting sleeve, and first mounting bases are hinged to the ends, away from the first mounting plate, of the first supporting frames; the first mounting seat is connected with a well wall through an expansion bolt; a limiting assembly is arranged on the upper side of the supporting rod and used for limiting the relative positions of the supporting rod and the supporting sleeve. According to the mounting device, the supporting strength of the mounting device can be improved, and then the stability of the Doppler flowmeter during operation is guaranteed.

Description

Technical Field

[0001] The present application relates to the field of Doppler flowmeter installation, and in particular to a Doppler flowmeter installation device used in a manhole. Background Art

[0002] Doppler flowmeters play an important role in the construction of smart cities, especially in urban drainage systems. They can accurately measure the water velocity and flow rate in manholes in real time, and transmit the data to the management platform. By analyzing and processing these data, city managers can effectively monitor the operation of drainage systems, optimize planning and design, cope with extreme weather drainage, and rationally manage and allocate water resources. In short, Doppler flowmeters provide accurate flow data, provide technical support for drainage management and water resource utilization, and improve urban operation efficiency and quality of life.

[0003] In today's market, the common construction and installation method of traditional Doppler flowmeters is to use an L-shaped support device close to the well wall. The upper mounting base of the L-shaped support device is suspended on the well wall with expansion bolts to provide support, so that after installation, the entire Doppler flowmeter is at the end of the cantilever. This cantilever structure is subjected to the impact of water flow for a long time, and is prone to displacement, bending and deflection, which has an adverse effect on the accuracy of data collection. That is, the structure of the current Doppler flowmeter installation device needs to be optimized to improve the support strength. Summary of the invention

[0004] In order to solve the above-mentioned problem and improve the supporting strength of the installation device, the present application provides a Doppler flowmeter installation device for use in a manhole.

[0005] The present application provides a Doppler flowmeter installation device for use in a manhole, which adopts the following technical solution:

[0006] A Doppler flowmeter installation device for a manhole comprises a support rod, a support sleeve, a Doppler flowmeter and a mounting assembly, wherein the Doppler flowmeter is installed at the lower end of the support rod, and two ultrasonic transducers of the Doppler flowmeter are arranged vertically, and the support sleeve is sleeved on the circumference of the support rod, and the mounting assembly comprises a first mounting plate and two first support frames, the first mounting plate is fixedly connected to the support sleeve, and the first mounting plate is connected to the manhole wall through expansion bolts, the two first support frames are both hinged on the first mounting plate, and the two first support frames are located on both sides of the support sleeve, and the first support frame is hinged with a first mounting seat at one end away from the first mounting plate, and the first mounting seat is connected to the manhole wall through expansion bolts; a limiting assembly is arranged on the upper side of the support rod to limit the relative position of the support rod and the support sleeve.

[0007] By adopting the above technical scheme, in the actual installation process, the staff first connects the first mounting plate on the support sleeve to the well wall, and connects the first mounting seat to the well wall. Because the well wall of the manhole is arc-shaped, and the arc degree of different well walls is not the same, the curvature of the well wall is adapted by rotating the first support frame, thereby ensuring the connection and fixation of the first mounting seat to the well wall. Subsequently, the support rod is inserted into the support sleeve, and the lower end of the support rod passes through the support sleeve. Finally, the limit assembly limits and fixes the relative position of the support rod and the support sleeve, and the Doppler flowmeter located on the lower side of the support rod can collect data; using the support sleeve to protect the support rod can reduce the direct impact of water flow on the support rod, and using the first mounting plate and the first mounting seat to form a three-point support, which greatly improves the support strength of the installation device for the support rod, helps prevent the support rod from displacement, bending and deflection, and thereby ensures the accuracy of data collection of the Doppler flowmeter during operation.

[0008] Preferably, there are multiple mounting assemblies distributed along the length direction of the supporting sleeve.

[0009] By adopting the above technical solution, the support sleeve is fixed at multiple points in the length direction through multiple installation components, which improves the installation strength of the support sleeve, helps to further improve the protection of the support rod, and because the depths in different manholes are different, the lengths of the support sleeve and the support rod will also increase accordingly when the depth is deeper. The installation strength of the support sleeve can be guaranteed by multiple installation components.

[0010] Preferably, the mounting assembly further comprises two first fixing blocks, the two first fixing blocks are arranged around the peripheral side of the supporting sleeve, and the two first fixing blocks are connected by screws, and the first mounting plate is fixedly connected to one of the first fixing blocks.

[0011] By adopting the above technical solution, the two first fixing blocks are arranged around the peripheral side of the support sleeve and connected by screws, thereby realizing a detachable connection between the installation component and the support sleeve, which is convenient for installing a certain number of installation components according to actual needs.

[0012] Preferably, the limiting assembly comprises two limiting blocks, the two limiting blocks are arranged around the circumference of the support rod, and the two limiting blocks are connected by screws, and the two limiting blocks are overlapped on the upper port of the support sleeve.

[0013] By adopting the above technical solution, two limit blocks are installed on the peripheral side of the support rod. When the support rod with the Doppler flowmeter is extended underwater, the two limit blocks overlap the upper port of the support sleeve, thereby realizing the limit fixation of the position of the Doppler flowmeter.

[0014] Preferably, the lower port of the supporting sleeve is serrated.

[0015] By adopting the above technical solution, due to the complex water flow conditions in the manhole, there are a lot of solid impurities and waste, which are easy to accumulate on the surface of the Doppler flowmeter, thereby blocking the flowmeter; in mild cases, it will affect the measurement accuracy of the flowmeter; in severe cases, it may even cause the flowmeter to lose its function; to ensure effective monitoring, manual dredging is necessary, however, the sewage pipe space is small, the environment is harsh, and even harmful gases exist. When performing manual dredging, construction workers not only have to wear diving suits, but also spend a lot of time to discharge harmful gases in the pipe; in this application, when garbage accumulates on the surface of the Doppler flowmeter during use, the support rod can be lifted upwards. At this time, the serrated structure on the lower side of the support sleeve will scrape off the garbage on the surface of the Doppler flowmeter, making it easy to remove the accumulated garbage.

[0016] Preferably, it also includes an extension assembly, which includes an extension rod, an extension sleeve and a connecting assembly, the upper end of the extension rod is fixedly connected to the lower end of the support rod, the extension sleeve is sleeved on the circumference of the extension rod, the connecting assembly includes a second mounting plate, two second support frames and two second fixing blocks, the two second fixing blocks are surrounded by the circumference of the extension sleeve and connected by screws, the second mounting plate is connected to one of the second fixing blocks, the two second support frames are hinged on the second mounting plate, and the second support frame is hinged with a second mounting seat on the side away from the second mounting plate; the Doppler flowmeter is installed at the lower end of the extension rod.

[0017] By adopting the above technical solution, when the water level in the well is deep and the Doppler flowmeter cannot be extended to the use position, the length of the support rod can be extended by extending the assembly to ensure that the Doppler flowmeter can be extended to a suitable position. At the same time, the second mounting plate, the second mounting seat and the well wall are connected to ensure the support strength of the extension rod.

[0018] Preferably, two adjusting rods are relatively arranged on the second mounting plate, and the adjusting rods are arranged horizontally. The two adjusting rods are located on both sides of the extension sleeve. A waist-shaped groove is opened on the adjusting rod along the length direction, and an adjusting bolt is arranged on one of the second fixing blocks in the vertical direction. The adjusting bolt extends into the waist-shaped groove, and an adjusting nut is arranged on the adjusting rod located in the waist-shaped groove. The adjusting bolt passes through the second fixing block and the waist-shaped groove in sequence and is fixed to the adjusting nut.

[0019] By adopting the above technical solution, at a deeper position underground, the inner wall of the well is in the shape of a downward trumpet, that is, the well wall is not vertical. At this time, the second mounting plate cannot be directly connected to the well wall. By adjusting the sliding of the bolt in the waist-shaped groove and changing the position of the second mounting plate, the second mounting plate can be made to fit and connect with the second mounting seat, thereby ensuring that the extension rod is vertically downward.

[0020] Preferably, the limiting assembly is configured as a limiting block, the limiting block is integrally formed on the support rod, and the limiting block is overlapped at the upper port of the support sleeve.

[0021] By adopting the above technical solution, the limit block is overlapped on the upper port of the supporting sleeve, so that the position of the Doppler flowmeter can be limited and fixed.

[0022] Preferably, four inner walls of the support sleeve are provided with sliding grooves in the horizontal direction, and the support sleeve is slidably provided with abutment rods in the four sliding grooves, and the abutment rods are used to abut the support rods; a driving assembly is provided on the support sleeve to drive the abutment rod to slide, and four driving assemblies are provided corresponding to the number of abutment rods; the driving assembly includes a first moving block and a second moving block, the first moving block is fixedly connected to the lower side of the limit block, a lifting groove is provided at the upper end port of the support sleeve in the vertical direction, the sliding groove is communicated with the lifting groove, the second moving block is slidably connected in the lifting groove, a first wedge surface is formed on the lower side of the second moving block, and a second wedge surface is formed at one end of the abutment rod away from the support rod, and a return spring is provided in the sliding groove, the length direction of the return spring is consistent with the sliding direction of the abutment rod, one end of the return spring is connected to the inner wall of the sliding groove, and the other end of the return spring is connected to the abutment rod; The support sleeve is provided with four accommodating grooves on the inner wall of the support sleeve, and the support sleeve is located in the inner wall of the accommodating groove and is provided with a sliding groove in a horizontal direction, and the sliding groove is connected to the lifting groove, and the support sleeve is located in the sliding groove and is slidably provided with a locking pin, and the four locking pins and the four first moving blocks correspond to each other one by one, and a plug-in groove is provided on the side of the first moving block; when the limit block is overlapped with the upper end port of the support sleeve, the first moving block drives the second moving block to descend, and the second moving block drives the abutment rod to extend out of the sliding groove and abut the support rod through the first wedge surface and the second wedge surface, and at the same time, the locking pin will slide and plug into the plug-in groove; the support sleeve is provided with an abutment spring in the sliding groove, and the abutment spring is sleeved on the locking pin, and a connecting ring plate is formed on the locking pin, one end of the abutment spring is connected to the connecting ring plate, and the other end of the abutment spring is connected to the inner wall of the sliding groove; the support sleeve is provided with a driving member in the accommodating groove for the locking pin to slide in the direction away from the first moving block.

[0023] By adopting the above technical solution, when the limit block is overlapped on the upper port of the support sleeve, the first moving block and the second moving block abut and drive the second moving block to descend, and the descent of the second moving block can drive the abutment rod to slide outward and abut against the support rod. Because the support rod and the support sleeve are plug-in and slidingly matched, in order to ensure the smoothness of the plug-in sliding, there will be a certain gap between the support rod and the support sleeve, which is convenient for the smooth insertion and removal of the support rod. Due to the existence of the gap, there will be a certain angle of offset swing during the use of the Doppler flowmeter. Although the angle is not large, it will also have an adverse effect on the accuracy of the Doppler flowmeter data acquisition. Therefore, when the limit block is overlapped on the support sleeve, the abutment rod extends out and abuts against the support rod, so that the support rod can be supported and fixed to ensure the stability of the support rod; in addition, when the first moving block is descended to the maximum stroke, the locking pin enters the plug-in slot under the action of the abutment spring to limit the first moving block, so as to realize the locking of the support rod and the support sleeve in the vertical direction, and prevent the support rod from being displaced under the action of buoyancy when there is too much water in the well.

[0024] Preferably, the driving member is configured as a driving wheel, the driving wheel is rotatably connected in the accommodating groove of the supporting sleeve, the driving wheel is hinged with a connecting rod, the end of the connecting rod away from the driving wheel is hinged with a locking pin, and a gear portion is formed on the driving wheel; when the locking pin is plugged into the plug-in groove, the driving wheel just rotates to a state where the gear portion extends into the supporting sleeve; an unlocking rod is provided in the support rod, the upper end of the unlocking rod protrudes from the upper end of the support rod, the unlocking rod rotates in the support rod through a torsion spring, and four unlocking gears are slidably connected in the unlocking rod, the unlocking gear is a quarter circle, and the four unlocking gears correspond to the four driving wheels one by one, and a linkage rod is lifted and slidably in the support rod, the upper end of the linkage rod protrudes from the upper end of the unlocking rod, and four A first wedge-shaped portion is formed on each side of the four unlocking gears that are close to each other, and a second wedge-shaped portion is formed on each side. When the linkage rod descends, the first wedge-shaped portion of the linkage rod cooperates with the second wedge-shaped portion of the unlocking gear to drive the unlocking gear to pass through the unlocking rod and the support rod and mesh with the gear portion on the corresponding driving wheel; a first compression spring is sleeved on the linkage rod, and an abutment plate is arranged on the linkage rod, and the first compression spring is located at the lower side of the abutment plate, one end of the first compression spring is connected to the abutment plate, and the other end of the first compression spring is connected to the inner wall of the unlocking rod; a sliding plate is fixedly connected to the lower side of the unlocking gear, and a second compression spring is arranged on the inner wall of the unlocking rod, and one end of the second compression spring abuts against the sliding plate, and the other end of the second compression spring is connected to the inner wall of the unlocking rod.

[0025] When the locking pin is disengaged from the plug-in slot, the locking pin drives the driving wheel to rotate through the connecting rod, and the gear portion of the driving wheel extends out of the receiving slot and is located in the supporting sleeve. When the positioning pin is not plugged into the plug-in slot, the gear portion of the driving wheel is located in the sliding slot, and the smooth edge of the driving wheel is located in the sliding slot, which will not affect the plug-in connection between the supporting rod and the supporting sleeve. When the supporting rod needs to be pulled out, the staff first presses the linkage rod to make the unlocking gear pass through the unlocking rod and the supporting rod and mesh with the gear portion of the driving wheel, and then rotates the unlocking rod, and the unlocking gear rotates accordingly, driving the driving wheel to rotate. When the driving wheel rotates, the locking pin is driven to slide and disengage from the plug-in slot, and when the driving wheel rotates, the gear portion will be received in the receiving slot; when the locking pin is disengaged from the plug-in slot, the locking between the limit block and the supporting sleeve is released, and under the action of the reset spring, the abutment rod retracts into the sliding slot, and drives the second moving block and the first moving block to slide upward, and then the supporting rod can be easily pulled out of the supporting sleeve.

[0026] In summary, the present application includes at least one of the following beneficial technical effects:

[0027] 1. The first mounting plate and the two first mounting seats are connected to the well wall to form a three-point support, which helps to improve the support strength of the support rod, thereby ensuring the stability of the Doppler flowmeter when in use. In addition, the mounting assembly can be provided with multiple mounting assemblies in the length direction of the support sleeve, and the multi-point support is added to further ensure the stability of the Doppler flowmeter when in use;

[0028] 2. With the help of the serrated structure of the lower port of the support sleeve, the support rod can slide relative to the support sleeve by a simple lifting action, and the serrated structure can scrape away the garbage accumulated on the surface of the Doppler flowmeter;

[0029] 3. By using the extension rod and the extension sleeve, when the water level in the well is deep, the Doppler flowmeter can be ensured to be able to penetrate underwater, and by using the adjusting rod, the horizontal position of the second mounting plate can be changed to adapt to the trumpet-shaped structure of the inner wall of the well, ensuring that the extension rod is vertically downward, that is, ensuring that the extension rod and the support rod are in the same vertical line to facilitate the lifting of the Doppler flowmeter. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of the present application;

[0031] Figure 2 for Figure 1 A partial enlarged view of middle A;

[0032] Figure 3 This is a schematic diagram of the overall structure of Embodiment 2 of the present application;

[0033] Figure 4This is a partial structural diagram of the second embodiment of the present application, which mainly reflects the structure of the connection component;

[0034] Figure 5 This is a cross-sectional structural diagram of Embodiment 3 of the present application;

[0035] Figure 6 for Figure 5 The partial enlarged view of middle B mainly shows the structure of the abutment rod;

[0036] Figure 7 for Figure 5 The partial enlarged view of C in the middle mainly shows the structure of the locking pin;

[0037] Figure 8 The partial structural diagram of the third embodiment of the present application mainly reflects the structure of the unlocking gear and the driving wheel.

[0038] Figure numerals: 1, support rod; 11, handle; 2, support sleeve; 21, flared guide surface; 22, lifting groove; 3, Doppler flowmeter; 4, mounting assembly; 41, first mounting plate; 42, first support frame; 421, first mounting seat; 422, fixing nut; 423, joint bearing; 43, first fixing block; 5, limit assembly; 51, limit block; 6, extension assembly; 61, extension rod; 62, extension sleeve; 63, connecting assembly; 631, second mounting plate; 632, second support frame; 6321, second mounting seat; 633, second fixing block; 7, adjusting rod; 71, waist groove; 72, adjusting bolt; 8, sliding groove; 81, abutting rod; 811, second wedge-shaped surface; 812, abutment ring plate; 82, return spring; 9, drive assembly; 91, first moving block; 911, plug-in slot; 92, second moving block; 921, first wedge-shaped surface; 10, accommodating slot; 20, sliding slot; 201, locking pin; 2011, connecting ring plate; 202, abutment spring; 30, driving wheel; 301, connecting rod; 302, gear part; 40, unlocking rod; 401, sliding slot; 402, sliding plate; 403, unlocking gear; 4031, second wedge-shaped part; 404, second compression spring; 405, limit plate; 50, linkage rod; 501, first wedge-shaped part; 502, first compression spring; 503, abutment plate. DETAILED DESCRIPTION

[0039] The following is combined with Figure 1-8 This application is described in further detail.

[0040] The embodiment of the present application discloses a Doppler flowmeter installation device for use in a manhole.

[0041] Example 1

[0042] Reference Figure 1The Doppler flowmeter installation device for manholes includes a support rod 1, a support sleeve 2, a Doppler flowmeter 3 and a mounting assembly 4. The Doppler flowmeter 3 is installed at the lower end of the support rod 1. The two ultrasonic transducers of the Doppler flowmeter 3 are arranged vertically. The support sleeve 2 is sleeved on the peripheral side of the support rod 1. The mounting assembly 4 is provided with multiple components in the length direction of the support sleeve 2. In this embodiment, two mounting components 4 are taken as an example. The mounting assembly 4 includes a first mounting plate 41, two first support frames 42 and two first fixing blocks 43. The two first fixing blocks 43 are surrounded by the peripheral side of the support sleeve 2. The two first fixing blocks 43 are both formed with U-shaped grooves adapted to be plugged into the support sleeve 2. The two first fixing blocks 43 The first mounting plate 41 is connected by screws, and is welded and fixed to one of the first fixing blocks 43, that is, the first mounting plate 41 is fixedly connected to the support sleeve 2 through the first fixing block 43, and the first mounting plate 41 is a perforated plate body, which is fixed to the well wall through expansion bolts; an ear plate is welded and fixed to the first mounting plate 41, and the two first support frames 42 are hinged to the first mounting plate 41 through the ear plates, and the two first support frames 42 are located on both sides of the support sleeve 2, and the first support frame 42 is hinged at one end away from the first mounting plate 41 with a first mounting seat 421, and the first mounting seat 421 is fixed to the well wall through expansion bolts, and a limiting component 5 is provided on the upper side of the support rod 1 to limit the support rod 1 and the support sleeve 2.

[0043] During the actual installation process, the two first fixing blocks 43 are first connected to the surrounding side of the support sleeve 2 to achieve fixation with the support sleeve 2. Then, the first mounting plate 41 and the first mounting seat 421 are connected to the well wall through expansion bolts to achieve support and fixation of the support sleeve 2. Then, the support rod 1 is inserted into the support sleeve 2, and the lower end is immersed in the water. The Doppler flowmeter 3 can collect data, and the limit assembly 5 limits the position of the support rod 1 and the support sleeve 2. By fixing the first mounting plate 41 and the first mounting seat 421 to the well wall, a three-point support is formed, which greatly improves the support strength of the support rod 1, helps prevent the displacement, bending and deflection of the support rod 1, and thus ensures the accuracy of data collection of the Doppler flowmeter 3 during operation; and through the rotation of the first support frame 42, the curvature of the well wall can be adapted to ensure the fixation of the first mounting seat 421 and the well wall.

[0044] Reference Figure 1 and Figure 2 A fixing nut 422 is welded to one end of the first support frame 42 away from the first mounting plate 41, and a joint bearing 423 is hinged on the first mounting seat 421. The threaded portion of the joint bearing 423 is threadedly connected to the fixing nut 422. By adjusting the distance between the fixing nut 422 and the joint bearing 423, the position of the first mounting seat 421 can be adjusted to adapt to the distance from the well wall.

[0045] The limiting assembly 5 includes two limiting blocks 51, which are arranged around the peripheral side of the support rod 1 and connected by screws to achieve fixed connection between the two limiting blocks 51 and the support rod 1. When the support rod 1 is inserted into the support sleeve 2, the two limiting blocks 51 overlap the ports of the support sleeve 2 to achieve relative fixation between the support rod 1 and the support sleeve 2. The upper port of the support sleeve 2 is flared to facilitate the insertion of the support rod 1.

[0046] A handle 11 is installed at the upper end of the support rod 1, and the lower end of the support sleeve 2 is serrated. Due to the complex water flow conditions in the manhole, there are a lot of solid impurities and waste, which are easy to accumulate on the surface of the Doppler flowmeter 3, thereby blocking the flowmeter; in mild cases, it will affect the measurement accuracy of the flowmeter; in severe cases, it may even cause the flowmeter to lose its function; if effective monitoring is to be ensured, manual dredging is necessary. However, the sewage pipe has a small space, a harsh environment, and even harmful gases. When performing manual dredging, construction workers not only have to wear diving suits, but also spend a lot of time to discharge harmful gases in the pipe; in this application, when garbage accumulates on the surface of the Doppler flowmeter 3 during use, the support rod 1 can be lifted upward by the handle 11. At this time, the serrated structure on the lower side of the support sleeve 2 will scrape off the garbage on the surface of the Doppler flowmeter 3, conveniently removing the accumulated garbage.

[0047] The implementation principle of a Doppler flowmeter installation device for use in a manhole in an embodiment of the present application is as follows: three-point support is achieved by utilizing the fixation between the first mounting plate 41 and the two first mounting seats 421 and the manhole wall, thereby improving the supporting strength of the support sleeve 2, that is, improving the supporting strength of the support rod 1, which helps to prevent the support rod 1 from being displaced, bent and deflected under the impact of water flow, thereby ensuring the accuracy of data collection of the Doppler flowmeter 3 during operation.

[0048] Example 2

[0049] Reference Figure 3 and Figure 4, the difference between this embodiment and embodiment 1 is that it also includes an extension component 6, the extension component 6 includes an extension rod 61, an extension sleeve 62 and a connecting component 63, at this time, the Doppler flowmeter 3 is not fixed on the lower end of the support rod 1, the extension rod 61 is fixedly connected to the support rod 1 by bolts, the Doppler flowmeter 3 is fixedly installed on the lower end of the extension rod 61, the extension sleeve 62 is sleeved on the peripheral side of the extension rod 61, the connecting component 63 includes a second mounting plate 631, two second support frames 632 and two second fixing blocks 633, the structure and principle of the connecting component 63 are similar to those of the mounting component 4, the two second fixing blocks 633 are surrounded by the peripheral side of the extension sleeve 62 and are connected by screws, the second mounting plate 631 is connected to one of the second fixing blocks 633, the two second support frames 632 are both hinged on the second mounting plate 631, and a second mounting seat 6321 is installed on the side of the second support frame 632 away from the second mounting plate 631.

[0050] When the water level in the well is deep and the Doppler flowmeter 3 cannot be extended to the use position, the length of the support rod 1 can be extended by the extension component 6 to ensure that the Doppler flowmeter 3 can be extended to a suitable position. At the same time, the second mounting plate 631, the second mounting seat 6321 and the well wall are connected to ensure the support strength of the extension rod 61.

[0051] Two adjusting rods 7 are relatively arranged on the second mounting plate 631, and the adjusting rods 7 are welded and fixed on the second mounting plate 631. The two adjusting rods 7 are located on both sides of the extension sleeve 62, and the second mounting plate 631 is connected to the second fixing block 633 through the adjusting plate; a waist-shaped groove 71 is opened on the adjusting rod 7 along the length direction, and two adjusting bolts 72 are arranged on one of the second fixing blocks 633 along the vertical direction, and the two adjusting bolts 72 correspond to the two adjusting rods 7 one by one, and the adjusting bolt 72 passes through the second fixing block 633 and extends into the waist-shaped groove 71, and an adjusting nut slides in the waist-shaped groove 71, and the lower end of the adjusting bolt 72 is connected to the adjusting nut, so the connection method is relatively existing, and this application will not go into too much detail, and the adjusting nut is not shown in the figure.

[0052] At a deeper position underground, the inner wall of the well is shaped like a downward trumpet, that is, the well wall is not vertical. At this time, the second mounting plate 631 cannot be directly connected to the well wall. By adjusting the sliding of the bolt 72 in the waist-shaped groove 71 and changing the position of the second mounting plate 631, the second mounting plate 631 and the second mounting seat 6321 can be fit and connected to ensure that the extension rod 61 is vertically downward.

[0053] Example 3

[0054] Reference Figure 5 and Figure 6The difference between this embodiment and embodiment 1 is that the limit assembly 5 is configured as a limit block 51, the limit block 51 is integrally formed on the support rod 1, and the limit block 51 overlaps the upper port of the support sleeve 2; the upper end of the support sleeve 2 is formed with a flared guide surface 21.

[0055] The support sleeve 2 is a square sleeve with a certain wall thickness. Sliding grooves 8 are provided on the four inner walls of the support sleeve 2 in the horizontal direction. The support sleeve 2 is located in the four sliding grooves 8 and abutment rods 81 are slidably provided. In the initial state, the abutment rod 81 is located in the sliding groove 8. When the limit block 51 is overlapped on the support sleeve 2, the abutment rod 81 slides out of the sliding groove 8 and abuts against the support rod 1. Because the support rod 1 and the support sleeve 2 are plugged and slidably matched, in order to ensure the smoothness of the plug-in and sliding, there will be a certain gap between the support rod 1 and the support sleeve 2 to facilitate the smooth insertion and removal of the support rod 1. Due to the existence of the gap, during the use of the Doppler flowmeter 3, it is inevitable that there will be a certain angle of offset and swing. Although the angle is not large, it will also have an adverse effect on the accuracy of data collection of the Doppler flowmeter 3. Therefore, when the limit block 51 is overlapped on the support sleeve 2, the abutment rod 81 is extended and abutted against the support rod 1, so that the support rod 1 can be supported and fixed, thereby ensuring the stability of the support rod 1.

[0056] The support sleeve 2 is provided with a driving assembly 9 for driving the abutment rod 81 to slide. There are four driving assemblies 9, which correspond one to one with the four abutment rods 81. One of them is now taken as an example for description. The driving assembly 9 includes a first moving block 91 and a second moving block 92. The first moving block 91 is welded below the limit block 51. The support sleeve 2 is located at the flared guide surface 21 and is provided with a lifting groove 22 in the vertical direction. The sliding groove 8 is connected to the lifting groove 22. The second moving block 92 is lifted and slid in the lifting groove 22. A first wedge surface 921 is formed on the lower side of the second moving block 92, and a second wedge surface 811 is formed on the end of the abutment rod 81 away from the support rod 1; the support sleeve 2 is located in the sliding groove 8 and is provided with a return spring 82. The return spring 82 is sleeved on the circumference of the abutment rod 81, and an abutment ring plate 812 is formed on the abutment rod 81. One end of the return spring 82 is connected to the abutment ring plate 812, and the other end of the return spring 82 is connected to the inner wall of the sliding groove 8.

[0057] Reference Figure 5 and Figure 7, the inner wall of the support sleeve 2 is also provided with four receiving grooves 10, and the support sleeve 2 is provided with sliding grooves 20 in the receiving grooves 10, and the sliding grooves 20 are communicated with the lifting grooves 22, and the support sleeve 2 is provided with a locking pin 201 for sliding movement in the sliding grooves 20, and the support sleeve 2 is provided with an abutting spring 202 in the sliding grooves 20, and the abutting spring 202 is sleeved on the locking pin 201, and a connecting ring plate 2011 is formed on the locking pin 201, and one end of the abutting spring 202 is connected to the connecting ring plate 2011, and the other end of the abutting spring 202 is connected to the inner wall of the sliding groove 20; the support sleeve 2 is provided with a driving member in the receiving groove 10 for the locking pin 201 to slide away from the first moving block 91. The side of the first moving block 91 is provided with a plug-in groove 911. When the limit block 51 gradually overlaps the upper port of the support sleeve 2, the first moving block 91 abuts against the second moving block 92 and drives the second moving block 92 to descend. The second moving block 92 descends and the cooperation of the first wedge surface 921 and the second wedge surface 811 can make the abutment rod 81 slide outward and abut against the support rod 1. When the limit block 51 overlaps the support sleeve 2, the insertion groove 911 is connected with the sliding groove 20, and the locking pin 201 slides and is inserted into the insertion groove 911 under the action of the abutment spring 202, thereby locking the limit block 51 to prevent the support rod 1 from being displaced due to excessive water in the well due to the action of buoyancy.

[0058] Reference Figure 5 , Figure 7 and Figure 8 The driving member is configured as a driving wheel 30, which is rotatably connected to the accommodating groove 10 of the supporting sleeve 2. A connecting rod 301 is hinged on the driving wheel 30, and the hinge point between the connecting rod 301 and the driving wheel 30 is eccentrically arranged with the driving wheel 30. The end of the connecting rod 301 away from the driving wheel 30 is hinged to the locking pin 201, and a gear portion 302 is formed on the driving wheel 30, and the gear portion 302 protrudes from the surface of the driving wheel 30; when the locking pin 201 is plugged and locked with the plug-in groove 911, the connecting rod 301 will drive the driving wheel 30 to rotate a certain angle, and at this time, the gear portion 302 of the driving wheel 30 just extends out of the accommodating groove 10 and enters the supporting sleeve 2.

[0059] An unlocking rod 40 is rotatably connected inside the support rod 1. The unlocking rod 40 is hinged to the support rod 1 through a torsion spring. The upper end of the unlocking rod 40 protrudes from the upper end of the support rod 1. Four sliding grooves 401 are provided in the unlocking rod 40. Sliding plates 402 are sliding in the four sliding grooves 401 of the unlocking rod 40. Unlocking gears 403 are fixedly connected to the four sliding plates 402. The unlocking gears 403 are in the shape of a quarter circle. The four unlocking gears 403 correspond to the four driving wheels 30 one by one. A linkage rod 50 is lifted and slid inside the unlocking rod 40. The upper end of the linkage rod 50 protrudes from the upper end of the unlocking rod 40. A thin rod portion is formed in the middle of the linkage portion 50. Four first wedge-shaped portions 501 are formed at the lower end of the linkage rod 50, that is, they are in a cone shape. A second wedge-shaped portion 4031 is formed on the side where the four unlocking gears 403 are close to each other. When the linkage rod 50 is pressed, the linkage rod 50 descends, and the linkage rod 50 drives the unlocking gear 403 to slide and pass through the unlocking rod 40 and the support rod 1 to engage with the gear part 302 on the corresponding driving wheel 30 through the cooperation of the first wedge-shaped portion 501 and the second wedge-shaped portion 4031; correspondingly, an avoidance groove is opened on the peripheral side of the support rod 1 for avoiding the unlocking gear 403.

[0060] Two limit plates 405 are distributed at intervals along the inner edge of the unlocking rod 40 in the vertical direction, and an abutment plate 503 is integrally formed on the linkage rod 50, and the abutment plate 503 is located between the two limit plates 405. The two limit plates 405 limit the movement of the abutment plate 503, and a first compression spring 502 is sleeved on the thin rod portion of the linkage rod 50, and the first compression spring 502 is located on the lower side of the abutment plate 503. One end of the first compression spring 502 is connected to the abutment plate 503, and the other end of the first compression spring 502 is connected to the lower limit plate 405; the unlocking rod 40 is located in the slide groove 401 and a second compression spring 404 is installed, one end of the second compression spring 404 abuts against the sliding plate 402, and the other end of the second compression spring 404 is connected to the inner wall of the slide groove 401 of the unlocking rod 40.

[0061] When it is necessary to pull out the support rod 1, the staff first presses the linkage rod 50 so that the unlocking gear 403 passes through the unlocking rod 40 and the support rod 1 and meshes with the gear portion 302 of the driving wheel 30, and then rotates the unlocking rod 40, and the unlocking gear 403 rotates accordingly, driving the driving wheel 30 to rotate. When the driving wheel 30 rotates, it drives the locking pin 201 to slide and disengage from the plug-in slot 911, and when the driving wheel 30 rotates, the gear portion 302 will be received into the accommodating slot 10; when the locking pin 201 disengages from the plug-in slot 911, the lock between the limit block 51 and the support sleeve 2 is released, and under the action of the reset spring 82, the abutment rod 81 retracts into the sliding slot 8, and drives the second moving block 92 and the first moving block 91 to slide upward, and then the support rod 1 can be easily pulled out of the support sleeve 2; under the action of the first compression spring 502, the linkage rod 50 can be reset, and at the same time, under the action of the second compression spring 404, the unlocking gear 403 will also be reset.

[0062] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A Doppler flowmeter installation device for a manhole, characterized in that: The invention comprises a support rod (1), a support sleeve (2), a Doppler flowmeter (3) and a mounting assembly (4), wherein the Doppler flowmeter (3) is mounted at the lower end of the support rod (1), two ultrasonic transducers of the Doppler flowmeter (3) are arranged vertically, the support sleeve (2) is sleeved on the peripheral side of the support rod (1), and the mounting assembly (4) comprises a first mounting plate (41) and two first support frames (42), the first mounting plate (41) is fixedly connected to the support sleeve (2), and the first mounting plate (41) is The two first support frames (42) are connected to the well wall via expansion bolts, and are both hinged on the first mounting plate (41). The two first support frames (42) are located on both sides of the support sleeve (2). One end of the first support frame (42) away from the first mounting plate (41) is hinged with a first mounting seat (421), and the first mounting seat (421) is connected to the well wall via expansion bolts. A limiting assembly (5) is provided on the upper side of the support rod (1) to limit the relative position of the support rod (1) and the support sleeve (2).

2. A Doppler flowmeter installation device for manhole according to claim 1, characterized in that: There are multiple installation components (4) distributed along the length direction of the support sleeve (2).

3. A Doppler flowmeter installation device for manhole according to claim 1, characterized in that: The mounting assembly (4) further comprises two first fixing blocks (43), the two first fixing blocks (43) being arranged around the peripheral side of the supporting sleeve (2), and the two first fixing blocks (43) being connected by screws, and the first mounting plate (41) being fixedly connected to one of the first fixing blocks (43).

4. A Doppler flowmeter installation device for manhole according to claim 1, characterized in that: The limiting assembly (5) comprises two limiting blocks (51), the two limiting blocks (51) are arranged around the peripheral side of the support rod (1), and the two limiting blocks (51) are connected by screws. The two limiting blocks (51) are overlapped on the upper end of the support sleeve (2).

5. The Doppler flowmeter installation device for manhole according to claim 1, characterized in that: The lower end of the supporting sleeve (2) is in a sawtooth shape.

6. A Doppler flowmeter installation device for manholes according to any one of claims 1 to 4, characterized in that: The device also comprises an extension assembly (6), wherein the extension assembly (6) comprises an extension rod (61), an extension sleeve (62) and a connection assembly (63), wherein the upper end of the extension rod (61) is fixedly connected to the lower end of the support rod (1), the extension sleeve (62) is sleeved on the circumference of the extension rod (61), and the connection assembly (63) comprises a second mounting plate (631), two second support frames (632) and two second fixing blocks (633), wherein the two second fixing blocks (633) are arranged around the circumference of the extension sleeve (62) and are connected by screws, the second mounting plate (631) is connected to one of the second fixing blocks (633), the two second support frames (632) are both hinged on the second mounting plate (631), and a second mounting seat (6321) is hinged on the side of the second support frame (632) away from the second mounting plate (631); and the Doppler flowmeter (3) is mounted on the lower end of the extension rod (61).

7. A Doppler flowmeter installation device for manholes according to claim 6, characterized in that: Two adjusting rods (7) are arranged opposite to each other on the second mounting plate (631), the adjusting rods (7) are arranged horizontally, and the two adjusting rods (7) are located on both sides of the extension sleeve (62). A waist-shaped groove (71) is provided on the adjusting rod (7) along the length direction, and an adjusting bolt (72) is arranged on one of the second fixing blocks (633) along the vertical direction, and the adjusting bolt (72) extends into the waist-shaped groove (71). The adjusting rod (7) is arranged in the waist-shaped groove (71) with an adjusting nut, and the adjusting bolt (72) passes through the second fixing block (633), the waist-shaped groove (71) in sequence and is fixed to the adjusting nut.

8. The Doppler flowmeter installation device for manhole according to claim 1, characterized in that: The limiting assembly (5) is configured as a limiting block (51), the limiting block (51) is integrally formed on the support rod (1), and the limiting block (51) is overlapped at the upper end of the support sleeve (2).

9. A Doppler flowmeter installation device for manholes according to claim 8, characterized in that: The four inner walls of the support sleeve (2) are all provided with sliding grooves (8) in the horizontal direction, and the support sleeve (2) is slidably provided with abutment rods (81) in the four sliding grooves (8), and the abutment rods (81) are used to abut the support rod (1); the support sleeve (2) is provided with a driving assembly (9) for driving the abutment rods (81) to slide, and the driving assembly (9) is provided with four corresponding to the number of abutment rods (81); the driving assembly (9) comprises a first moving block (91) and a second moving block (92), the first moving block (91) is fixedly connected to the lower side of the limit block (51), and a lifting groove (22) is provided at the upper end of the support sleeve (2) in the vertical direction, and the sliding groove (22) is provided at the upper end of the support sleeve (2) The shifting groove (8) is connected to the lifting groove (22); the second moving block (92) is slidably connected in the lifting groove (22); a first wedge-shaped surface (921) is formed on the lower side of the second moving block (92); a second wedge-shaped surface (811) is formed on the end of the abutting rod (81) away from the supporting rod (1); a return spring (82) is arranged in the sliding groove (8); the length direction of the return spring (82) is consistent with the sliding direction of the abutting rod (81); one end of the return spring (82) is connected to the inner wall of the sliding groove (8); the other end of the return spring (82) is connected to the abutting rod (81); four accommodating grooves (1) are provided on the inner wall of the supporting sleeve (2); 0), the support sleeve (2) is located on the inner wall of the accommodating groove (10) and is provided with a sliding groove (20) in the horizontal direction, the sliding groove (20) is communicated with the lifting groove (22), the support sleeve (2) is located in the sliding groove (20) and is slidably provided with a locking pin (201), four locking pins (201) and four first moving blocks (91) correspond one to one, and a plug-in groove (911) is provided on the side of the first moving block (91); when the limit block (51) is overlapped on the upper end of the support sleeve (2), the first moving block (91) drives the second moving block (92) to descend, and the second moving block (92) drives the abutting rod (811) through the first wedge surface (921) and the second wedge surface (811). 1) extends out of the sliding groove (8) and abuts against the support rod (1), and at the same time, the locking pin (201) slides and plugs into the plug-in groove (911); the support sleeve (2) is located in the sliding groove (20) and is provided with an abutment spring (202), the abutment spring (202) is sleeved on the locking pin (201), and a connecting ring plate (2011) is formed on the locking pin (201), one end of the abutment spring (202) is connected to the connecting ring plate (2011), and the other end of the abutment spring (202) is connected to the inner wall of the sliding groove (20); the support sleeve (2) is located in the accommodating groove (10) and is provided with a driving member for the locking pin (201) to slide in a direction away from the first moving block (91).

10. A Doppler flowmeter installation device for manholes according to claim 9, characterized in that: The driving member is configured as a driving wheel (30), the driving wheel (30) is rotatably connected to the receiving groove (10) of the supporting sleeve (2), a connecting rod (301) is hinged on the driving wheel (30), one end of the connecting rod (301) away from the driving wheel (30) is hinged to the locking pin (201), and a gear portion (302) is formed on the driving wheel (30); when the locking pin (201) is plugged into the plug-in groove (911), the driving wheel (30) just rotates to a state where the gear portion (302) extends into the supporting sleeve (2); an unlocking mechanism is provided in the supporting rod (1). The unlocking rod (40) has an upper end that protrudes from the upper end of the support rod (1), and the unlocking rod (40) is rotated in the support rod (1) through a torsion spring. Four unlocking gears (403) are slidably connected in the unlocking rod (40), and the unlocking gears (403) are in the shape of a quarter circle. The four unlocking gears (403) correspond to the four driving wheels (30) one by one. A linkage rod (50) is lifted and slidably provided in the support rod (1), and the upper end of the linkage rod (50) protrudes from the upper end of the unlocking rod (40), and the lower end of the linkage rod (50) is formed with four first wedge-shaped portions (50 1), a second wedge-shaped portion (4031) is formed on one side of the four unlocking gears (403) close to each other. When the linkage rod (50) descends, the first wedge-shaped portion (501) of the linkage rod (50) cooperates with the second wedge-shaped portion (4031) of the unlocking gear (403), driving the unlocking gear (403) to pass through the unlocking rod (40) and the support rod (1) and to mesh with the gear portion (302) on the corresponding driving wheel (30); a first compression spring (502) is sleeved on the linkage rod (50), and an abutment plate (503) is provided on the linkage rod (50). A compression spring (502) is located on the lower side of the abutment plate (503), one end of the first compression spring (502) is connected to the abutment plate (503), and the other end of the first compression spring (502) is connected to the inner wall of the unlocking rod (40); the lower side of the unlocking gear (403) is fixedly connected with a sliding plate (402), and a second compression spring (404) is arranged on the inner wall of the unlocking rod (40), one end of the second compression spring (404) is abutted against the sliding plate (402), and the other end of the second compression spring (404) is connected to the inner wall of the unlocking rod (40).

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