Portable open channel flow measuring device fixing clamp

Abstract

The application relates to the technical field of open channel flow measurement, and particularly discloses a portable open channel flow measurement device fixing clamp which comprises a force adding rod and a lead screw, a universal joint is arranged between the force adding rod and the lead screw, an installation block is threadedly connected to the outer side of the lead screw, installation rods are rotatably arranged on the two sides of the installation block, clamping seats are rotatably arranged at the ends of the two installation rods away from the installation block, vertical plates are fixedly connected to the clamping seats, and ultrasonic probes are arranged on the sides of the two vertical plates close to each other; the clamp adopts a rhombic telescopic mechanism to cooperate with the force adding rod and the universal joint, realizes remote force adding of the top pressing operation, solves the problem that the operation end of the top pressing mechanism cannot be touched by hands in a deep channel, the top pressing effect is stable, the flow measurement device is effectively prevented from being displaced under the impact of water flow, the operation is more labor-saving, and the clamp can be adapted to open channel sites with different operation angles through the cooperation of the force adding rod and the universal joint, and the installation convenience is improved.

Description

Technical Field

[0001] This invention relates to the field of open channel flow measurement technology, specifically a fixing fixture for a portable open channel flow measurement device. Background Technology

[0002] Portable open channel flow measurement devices are widely used in open channel flow measurement scenarios such as urban drainage, water conservancy and hydrological monitoring, and farmland irrigation. The ease of on-site installation directly affects the efficiency and accuracy of flow measurement operations. Existing on-site installation clamps for portable open channel flow measurement devices mostly adopt a simple single-rod clamping structure (as shown in the attached diagram of the instruction manual). Figure 1 As shown in the diagram, this structure is only suitable for shallow, narrow open channels. In practical engineering applications, it exposes many difficult-to-solve technical problems for open channels of different depths and widths, as follows:

[0003] 1. Poor adaptability and difficulty in deep channel installation: The current installation width of portable open channel flow measurement devices depends on the range of motion of the tightening mechanism. When facing open channels with greater depth, it is impossible to meet the requirement of lowering the flow measurement device to the specified depth. During on-site installation, other rods need to be spliced, which is cumbersome and the stability after splicing is poor, which can easily lead to the deviation of the installation position of the flow measurement device.

[0004] 2. Limited operation of single-rod clamping mechanism: When installing the flow measurement device in open channel, the device needs to be fixed by a single-rod clamping mechanism. The existing clamping mechanism does not have a remote operation design. For deeper channels, the operator's hands cannot reach the operating end of the clamping mechanism, and other tools are required for assistance. The operation efficiency is low and the clamping effect is difficult to guarantee, which can easily cause the flow measurement device to shift under the impact of water flow.

[0005] To address this, we propose a portable fixture for open channel flow measurement devices. Summary of the Invention

[0006] The purpose of this invention is to provide a fixed clamp for a portable open channel flow measurement device to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a portable open channel flow measurement device fixing clamp, comprising: a force-applying rod and a lead screw, a universal joint being provided between the force-applying rod and the lead screw, a mounting block being threadedly connected to the outer side of the lead screw, mounting rods being rotatably provided on both sides of the mounting block, a retaining seat being rotatably provided at the ends of the two mounting rods away from the mounting block, a vertical plate being fixedly connected to the retaining seat, and an ultrasonic probe being provided on the side of the two vertical plates that are close to each other.

[0008] The lower end of the lead screw is fixedly connected to a block, and a first connecting rod and a second connecting rod are symmetrically rotated on both sides of the block, with the second connecting rod located inside the first connecting rod.

[0009] Among them, two mounting rods are fixedly connected to reinforcing blocks, and two isolation blocks are fixedly connected to both sides of one side of the reinforcing block. The other ends of the two first connecting rods are rotatably connected to the one side reinforcing block and the isolation block.

[0010] Among them, the other end of the two second connecting rods is rotatably set with the other side reinforcing block.

[0011] Each of the two mounting rods has a U-shaped seat rotatably mounted on its upper side, and a lowering rod is fixedly connected to the upper side of each of the two U-shaped seats.

[0012] The lowering rod has a rectangular cross-section and graduations on its side.

[0013] The lower ends of the force-adding rod and the lowering rod are respectively fixedly connected to the first protrusion, and the upper ends of the force-adding rod and the lowering rod are respectively provided with grooves that match the first protrusions. Fastening bolts are respectively provided between the two force-adding rods and the two lowering rods.

[0014] The lowering rod has an upper mounting plate, and a second protrusion that matches the groove is fixedly connected to the lower side of the mounting plate. The second protrusion is fixedly connected to the lowering rod by fastening bolts. A first mounting groove is provided on the lower side of the mounting plate, and a first distance sensor is provided in the first mounting groove of the mounting plate.

[0015] The lowering rod has a slider that slides on its outer side, and a support foot is rotatably mounted on one side of the slider. The support foot has two second mounting slots arranged symmetrically on its inner side, and a second distance sensor is installed in each of the two second mounting slots.

[0016] The first distance sensor and the second distance sensor are electrically connected to a controller. A device housing is fixedly connected to one side of the controller. A first warning device and a second warning device are respectively installed on the upper side of the device housing.

[0017] The present invention has at least the following beneficial effects:

[0018] 1. The diamond-shaped telescopic mechanism, combined with the force-adding rod and universal joint, enables remote force application during the tightening operation, solving the problem that the operating end of the tightening mechanism cannot be reached by hand in deep channels. The tightening effect is stable, effectively preventing the flow measuring device from shifting under the impact of water flow. The operation is more labor-saving. Furthermore, through the cooperation of the force-adding rod and universal joint, it can be adapted to open channel sites with different operating angles, improving the ease of installation.

[0019] 2. The telescopic stroke of the diamond-shaped telescopic mechanism is adjustable, which can be adapted to open channels of different widths. The extension rod and the lowering rod adopt an adjustable length design, which can meet the requirement of lowering the flow measuring device as close as possible to the bottom of the channel. It is suitable for open channel scenarios of different depths and has strong versatility.

[0020] 3. The overall structure of this fixture adopts a lightweight design, which greatly reduces the weight of the fixture itself while meeting the mechanical strength design requirements and ensuring installation stability, making it convenient for on-site handling and installation. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the single-rod clamping structure in use in the prior art of this invention;

[0022] Figure 2 This is a schematic diagram of the overall structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the fixture of the present invention viewed from below;

[0024] Figure 4 This is a top view of the fixture of the present invention.

[0025] Figure 5 For the present invention Figure 2 Enlarged structural diagram at point A;

[0026] Figure 6 This is a schematic diagram of the structure of an explosion at the connection point of the two force-adding rods in this invention;

[0027] Figure 7 This is a schematic diagram of the structure of an explosion at the connection point of the two lowering rods in this invention;

[0028] Figure 8 This is a schematic diagram of the fixture of the present invention in use;

[0029] Figure 9 This is a schematic diagram of the lowering rod connection in Embodiment 2 of the present invention;

[0030] Figure 10 This is a schematic diagram of the explosion at the connection between the lowering rod and the mounting plate in Embodiment 2 of the present invention;

[0031] Figure 11 This is a schematic diagram of the bottom structure of the mounting plate in Embodiment 2 of the present invention;

[0032] Figure 12 This is a schematic diagram of the support foot in Embodiment 2 of the present invention;

[0033] Figure 13 This is a schematic diagram of the device housing connection in Embodiment 2 of the present invention.

[0034] In the diagram: 1. Force rod; 2. Lead screw; 3. Universal joint; 4. Mounting block; 5. Mounting rod; 6. Reinforcing block; 7. Card seat; 8. Vertical plate; 9. U-shaped seat; 10. Lowering rod; 11. First connecting rod; 12. Module; 13. Second connecting rod; 14. Isolation block; 15. Ultrasonic probe; 16. First protrusion; 17. Fastening bolt; 18. Scale; 19. Groove; 20. Mounting plate; 21. Second protrusion; 22. First distance sensor; 23. First mounting groove; 24. Slider; 25. Support foot; 26. Second mounting groove; 27. Second distance sensor; 28. Equipment housing; 29. ​​Controller; 30. First warning device; 31. Second warning device. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Example 1

[0037] Please see Figures 1 to 8 This invention provides a technical solution: a portable open channel flow measurement device fixing clamp, including a force-applying rod 1 and a lead screw 2. A universal joint 3 is provided between the force-applying rod 1 and the lead screw 2, which enables multi-directional force application. A mounting block 4 is threaded to the outside of the lead screw 2. Mounting rods 5 are rotatably mounted on both sides of the mounting block 4 via pins. A retaining seat 7 is rotatably mounted on the end of each of the two mounting rods 5 away from the mounting block 4 via pins. A vertical plate 8 is fixedly connected to the retaining seat 7 by screws. The screws facilitate the connection between the retaining seat 7 and the vertical plate 8. An ultrasonic probe 15 is provided on the side of the two vertical plates 8 that is close to each other (the installation between the ultrasonic probe 15 and the vertical plate 8 is existing publicly available technology). The vertical plate 8 and the ultrasonic probe 15 constitute a portable open channel flow measurement device. In use, the vertical plate 8 is lowered into the channel water flow, and the flow is measured by the ultrasonic probe 15.

[0038] A block 12 is fixedly connected to the lower end of the lead screw 2. A first connecting rod 11 and a second connecting rod 13 are symmetrically mounted on both sides of the block 12 via pins. The second connecting rod 13 is located inside the first connecting rod 11.

[0039] Two mounting rods 5 are respectively fixedly connected to reinforcing blocks 6 by screws. The two reinforcing blocks 6 are located on both sides of the lead screw 2 and are arranged symmetrically. Two isolation blocks 14 are fixedly connected to both sides of one side of the reinforcing block 6. The gap between the first connecting rod 11 and the reinforcing block 6 on this side can be filled by the isolation blocks 14. The other end of the two first connecting rods 11 is rotatably connected to the reinforcing block 6 and the isolation block 14 on this side by a pin.

[0040] The other ends of the two second connecting rods 13 are rotatably connected to the reinforcing block 6 on the other side via pins. The mounting block 4, the two mounting rods 5, the two reinforcing blocks 6, the first connecting rod 11, and the second connecting rod 13 can form a rhomboid telescopic mechanism.

[0041] Two mounting rods 5 are respectively equipped with U-shaped seats 9 on their upper sides via pins. The two U-shaped seats 9 are located on both sides of the lead screw 2 and are arranged symmetrically. The lowering rods 10 are respectively fixedly connected to the upper sides of the two U-shaped seats 9.

[0042] In use, the upright plate 8 of the open channel flow measuring device is fixed to the two clamps 7 with screws to complete the assembly of the clamp and the flow measuring device. Then, the clamp is lowered. The operator holds the universal joint 3 of the force-applying rod 1 and slowly lowers the assembled clamp to the designated position in the open channel through the lowering rod 10. The direction of force applied by the force-applying rod 1 can be adjusted through the universal joint 3. Rotating the force-applying rod 1 drives the lead screw 2 to rotate through the universal joint 3, causing the mounting block 4 to move down and drive the mounting rod 5, the first connecting rod 11, and the second connecting rod 13 of the diamond telescopic mechanism to extend and retract until the upright plate 8 is in contact with the two side walls of the open channel. Continue to apply force and rotate the force-applying rod 1 to lock the diamond telescopic mechanism and make the upright plates 8 press against the two side walls of the open channel, thus achieving the clamp and the open channel to be firmly fixed. At this time, the flow measuring device is stably fixed at the designated depth and position of the open channel. Thus, through the extension and retraction of the diamond telescopic mechanism of the clamp, it can be adapted to open channels of different widths.

[0043] After the flow measurement operation is completed, rotate the force rod 1 in the opposite direction to reset the diamond-shaped telescopic mechanism, release the contact and clamping effect between the upright plate 8 and the channel side wall, and lift the clamp and flow measurement device together by lowering the rod 10 to complete the disassembly. Rotate the force rod 1 in the opposite direction to move the mounting block 4 further upward. The clamp can also be folded up for easy carrying. In addition, the overall structure of the clamp can be made of lightweight materials such as aluminum alloy, achieving lightweighting of the clamp while meeting the mechanical strength design requirements, making it convenient for on-site handling and installation.

[0044] The lowering rod 10 is designed with a rectangular cross-section and has a scale 18 on its side. When the clamp is lowered, the sides of the lowering rods 10 on both sides abut against the upper edges of the channel side walls. If the sides of the lowering rods 10 deviate or skew from the upper edges of the channel side walls during the lowering process, it indicates that the clamp is skewed in the front-back direction. The operator needs to correct this and make the sides of the lowering rods 10 fit against the upper edges of the channel side walls again. If the scale 18 on the lowering rods 10 on both sides corresponding to the upper edges of the channel side walls are not equal, it indicates that the clamp is skewed in the height direction. The operator needs to correct and adjust this to ensure the verticality of the clamp during the lowering process, prevent the clamp from being too skewed, and thus reduce the measurement error.

[0045] The lower ends of the extension rod 1 and the lowering rod 10 are respectively fixedly connected to the first protrusion 16. The upper ends of the extension rod 1 and the lowering rod 10 are respectively provided with grooves 19, which match the first protrusion 16. Fastening bolts 17 are respectively provided between the two extension rods 1 and the two lowering rods 10. The extension rod 1 or the lowering rod 10 is provided with threads that match the fastening bolts 17 at the grooves 19 and the first protrusion 16. The extension rod 1 or the lowering rod 10 is provided with countersunk holes at the ends of the fastening bolts 17 so that after the fastening bolts 17 are fixed, their ends will not extend beyond the side of the extension rod 1 or the lowering rod 10.

[0046] By inserting the first protrusion 16 at the lower end of one force-adding rod 1 into the groove 19 at the upper end of the other force-adding rod 1, and then fixing the two inserted force-adding rods 1 with fastening bolts 17, the length of the force-adding rod 1 can be adjusted through the connection between multiple force-adding rods 1. Similarly, the length of the lowering rod 10 can also be adjusted through the connection between multiple lowering rods 10 to meet the requirement of lowering the flow measuring device as close as possible to the bottom of the channel, adapting to open channels of different depths. Moreover, by utilizing the adjustability of the length of the force-adding rod 1, remote operation of tightening in deep channels can be realized, solving the technical pain point that operators in deep channels cannot reach the operating end of the tightening mechanism.

[0047] Example 2

[0048] Please see Figures 9 to 13 Based on Embodiment 1, in this embodiment: a mounting plate 20 is provided at the upper end of the lowering rod 10, and a second protrusion 21 matching the groove 19 is fixedly connected to the lower side of the mounting plate 20. The second protrusion 21 is fixedly connected to the lowering rod 10 by fastening bolts 17. A first mounting groove 23 is provided on the lower side of the mounting plate 20, and a first distance sensor 22 is provided in the first mounting groove 23 of the mounting plate 20. The first distance sensor 22 does not protrude from the lower side of the first mounting groove 23.

[0049] After adjusting the length of the lowering rod 10 by connecting multiple lowering rods 10, the second protrusion 21 on the lower side of the mounting plate 20 is inserted into the groove 19 on the upper side of the lowering rod 10, and the second protrusion 21 and the mounting plate 20 are fixed by fastening bolts 17. After fixing, the distance detection direction of the first distance sensor 22 is parallel to the length direction of the lowering rod 10 and corresponds to the upper side of the slider 24 and the side close to the support foot 25.

[0050] A slider 24 is slidably mounted on the outer side of the lowering rod 10. A support foot 25 is rotatably mounted on one side of the slider 24 via a pin. The support feet 25 on the sides of the lowering rod 10 are symmetrically arranged. Two second mounting grooves 26 are symmetrically arranged on the inner side of the support foot 25. A second distance sensor 27 is respectively installed in the two second mounting grooves 26 of the support foot 25. The second distance sensor 27 does not protrude from the outer side of the second mounting groove 26. After the two support feet 25 are respectively locked at the upper edge of the channel side wall, the distance between the support feet 25 and the upper edge of the channel side wall can be detected by the second distance sensor 27.

[0051] The first distance sensor 22 and the second distance sensor 27 are electrically connected to the controller 29 via wires. The controller 29 is fixedly connected to one side of the housing 28. The housing 28 can be used to install devices such as batteries. The upper side of the housing 28 is respectively provided with a first warning device 30 and a second warning device 31. The controller 29 and the housing 28 are located in a position that can be controlled by the operator, and can be extended to the bank of the channel via wires.

[0052] During flow measurement, the two support feet 25 are respectively locked onto the upper edges of the two side walls of the channel. As the lowering rod 10 is lowered with the clamp, it moves downward along the inside of the slider 24. The movement of the lowering rod 10 can drive the synchronous movement of the mounting plate 20. The distance between the two sides and the upper side of the slider 24 can be detected by the first distance sensors 22 on both sides. When the difference in distance detected by the two first distance sensors 22 exceeds the set threshold, the controller 29 will control the first warning device 30 to issue a warning. This indicates that there is a difference in the length of the lowering rod 10 on both sides as the clamp is lowered, which means that the clamp is tilted in the height direction. The warning effect of the first warning device 30 reminds the operator to make corrections and adjustments to ensure the verticality guidance during the clamp lowering process. This can be judged automatically without the need for manual judgment through the scale 18, improving convenience. After correction, the first warning device 30 can be stopped by the detection of the first distance sensors 22 on both sides. This can also serve as a prompt after the adjustment is completed, making it convenient for the operator to use.

[0053] When there is no deviation in the front-back direction on both sides of the clamp, the support foot 25 will not deviate in the front-back direction. At this time, the distances between the two second distance sensors 27 on one side of the support foot 25 and the channel sidewall are the same. If the clamp deviates in the front-back direction during the lowering process, the distances between the two second distance sensors 27 on one side of the support foot 25 and the channel upper edge sidewall will differ. The controller 29 can control the second warning device 31 to issue a warning, reminding the operator to correct and adjust the deviation in the front-back direction on both sides of the clamp. After the correction is completed, the second warning device 31 can stop warning. In this way, it can automatically determine whether the clamp deviates in the front-back direction on both sides, so as to remind the operator to make timely corrections and adjustments to prevent the clamp from deviating too much and affecting the flow measurement. The warning sound and light of the first warning device 30 and the second warning device 31 can be different to make it easier for the operator to distinguish which direction the clamp is deviating in.

[0054] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0055] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixing clamp for a portable open channel flow measurement device, characterized in that: include: A force-applying rod (1) and a lead screw (2) are provided. A universal joint (3) is provided between the force-applying rod (1) and the lead screw (2). A mounting block (4) is threaded to the outside of the lead screw (2). Mounting rods (5) are rotatably provided on both sides of the mounting block (4). A retaining seat (7) is rotatably provided at the end of the two mounting rods (5) away from the mounting block (4). A vertical plate (8) is fixedly connected to the retaining seat (7). An ultrasonic probe (15) is provided on the side of the two vertical plates (8) that are close to each other.

2. The portable open channel flow measurement device fixing clamp according to claim 1, characterized in that: The lower end of the lead screw (2) is fixedly connected to a block (12). The two sides of the block (12) are respectively symmetrically rotated and provided with a first connecting rod (11) and a second connecting rod (13). The second connecting rod (13) is located inside the first connecting rod (11).

3. The portable open channel flow measurement device fixing clamp according to claim 2, characterized in that: Two mounting rods (5) are respectively fixedly connected to reinforcing blocks (6), and two sides of one side of the reinforcing block (6) are respectively fixedly connected to isolation blocks (14). The other ends of the two first connecting rods (11) are rotatably connected to the reinforcing block (6) and the isolation block (14) on one side.

4. The fixing clamp for the portable open channel flow measurement device according to claim 2, characterized in that: The other end of the two second connecting rods (13) is rotatably set with the other side reinforcing block (6).

5. The fixing clamp for the portable open channel flow measurement device according to claim 1, characterized in that: The two mounting rods (5) are respectively rotatably provided with U-shaped seats (9), and the two U-shaped seats (9) are respectively fixedly connected with lowering rods (10).

6. The fixing clamp for the portable open channel flow measurement device according to claim 5, characterized in that: The lowering rod (10) is configured with a rectangular cross section, and the lowering rod (10) has a scale (18) on its side end.

7. The portable open channel flow measurement device fixing clamp according to claim 5, characterized in that: The lower ends of the force-adding rod (1) and the lowering rod (10) are respectively fixedly connected to the first protrusion (16), and the upper ends of the force-adding rod (1) and the lowering rod (10) are respectively provided with grooves (19), the grooves (19) match the first protrusions (16), and fastening bolts (17) are respectively provided between the two force-adding rods (1) and the two lowering rods (10).

8. The fixing clamp for the portable open channel flow measurement device according to claim 7, characterized in that: The upper end of the lowering rod (10) is provided with a mounting plate (20). A second protrusion (21) matching the groove (19) is fixedly connected to the lower side of the mounting plate (20). The second protrusion (21) is fixedly connected to the lowering rod (10) by fastening bolts (17). A first mounting groove (23) is provided on the lower side of the mounting plate (20). A first distance sensor (22) is provided in the first mounting groove (23) of the mounting plate (20).

9. The portable open channel flow measurement device fixing clamp according to claim 8, characterized in that: A slider (24) is slidably arranged on the outside of the lowering rod (10). A support foot (25) is rotatably arranged on one side of the slider (24). Two second mounting slots (26) are symmetrically arranged on the inner side of the support foot (25). A second distance sensor (27) is respectively arranged in the two second mounting slots (26) of the support foot (25).

10. The fixing fixture for the portable open channel flow measurement device according to claim 9, characterized in that: The first distance sensor (22) and the second distance sensor (27) are electrically connected to a controller (29). A device housing (28) is fixedly connected to one side of the controller (29). A first warning device (30) and a second warning device (31) are respectively provided on the upper side of the device housing (28).

Images