Non-contact sewer radar-ultrasonic dual-mode flowmeter

Abstract

The utility model relates to flowmeter technical field and disclose a kind of radar-ultrasonic wave double mode flowmeter of non-contact drainage pipeline, including fixed component;Reduce shock-absorbing component of vibration power;Limiting component to prevent deviation during measurement;The fixed component includes: working tank;First fixed block is slidably connected in the right side of the lower end of the working tank;And second fixed block is slidably connected in the left side of the lower end of the working tank The shock-absorbing component includes: first shock-absorbing column is fixed in the lower end of the second reset spring;The limiting component includes: the water pipe of setting in the lower inside of the working tank.The utility model acquires fluid surface flow rate signal in real time by radar module;Ultrasonic probe acquires fluid water depth signal in real time, and signal processor in working tank calculates flow by double mode data fusion algorithm, effectively avoids the failure problem caused by garbage, silt covering of traditional contact type sensor, adapts to complex working conditions such as water pipe silt, eccentric flow.

Description

Technical Field

[0001] This utility model relates to the field of flow meter technology, specifically a non-contact drainage pipe radar-ultrasonic dual-mode flow meter. Background Technology

[0002] A flow meter is a metering device used to continuously or intermittently measure the flow rate and cumulative flow of fluids (liquids, gases, steam, etc.) in water pipes or channels. Its core function is to convert the "flow state" of the fluid into readable and transmittable "quantitative data," providing key data support for scenarios such as production control, energy metering, and environmental monitoring. The mainstream flow monitoring technologies in the industry can be divided into two categories: contact and non-contact. Among them, contact flow meters (such as electromagnetic flow meters and turbine flow meters) have significant limitations in practical applications because they need to be directly immersed in the fluid.

[0003] The existing publicly available technical solution CN 216116213 U discloses a device for installing a flow meter in a municipal drainage pipe. Specifically, it describes a device for installing a flow meter in a municipal drainage pipe, including a connecting pipe with a hollow interior. A floating box is fixedly installed on the upper surface of the connecting pipe. The floating box is also hollow, with a circular hole at its bottom center that extends through the bottom of the floating box to the outer wall of the connecting pipe. The advantage of this invention is that the connecting pipe is equipped with an impurity stirring device, which includes a rotating blade. The rotating blade has a rotating hole inside, and a rotating shaft is rotatably connected inside the rotating hole. Both ends of the rotating shaft are fixed to the inner wall of the pipe. When rainwater enters the pipe, the water drives the rotating blade to rotate, which in turn drives the water to rotate, preventing impurities in the water from settling at the bottom of the pipe and preventing impurity accumulation from affecting the measurement results, thus making the measurement results more accurate.

[0004] However, in the implementation of existing technical solutions, the water is rotated by rotating blades to prevent impurities in the water from settling at the bottom of the pipe. The rotation of the water may lead to inaccurate measurement results, resulting in measurement errors. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] Given that the existing technology involves rotating the water by rotating the blades to prevent impurities in the water from settling at the bottom of the pipe, the rotation of the water may lead to inaccurate measurement results, resulting in measurement errors.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A non-contact radar-ultrasonic dual-mode flow meter for drainage pipelines includes a fixing component; a vibration damping component to reduce vibration; and a limiting component to prevent deviation during measurement.

[0009] The fixing component includes: a work box; a first fixing block slidably connected to the lower right side of the work box; and a second fixing block slidably connected to the lower left side of the work box.

[0010] The shock absorption assembly includes: a second return spring connected to the upper wall inside the working box; and a first shock absorption column fixed to the lower end of the second return spring.

[0011] The limiting component includes: a water pipe disposed inside the lower part of the working box; and a pressure plate disposed at the lower end of the water pipe.

[0012] As a further embodiment of this utility model, the fixing component further includes: a first limiting block and a second limiting block; the first limiting block is welded to the lower end of the second fixing block; the second limiting block is welded to the lower end of the first fixing block.

[0013] As a further embodiment of this utility model, the fixing component further includes: a third limiting block and a first reset spring; the third limiting block is welded to the left side of the second limiting block; the first reset spring is disposed at the front end of the first limiting block.

[0014] As a further embodiment of this utility model: the fixing component further includes: a limiting post; the limiting post is fixed to the other end of the first reset spring, and the limiting post passes through the interior of the first limiting block.

[0015] As a further embodiment of this utility model: the shock absorption assembly further includes: a connecting plate and a friction plate; the connecting plate is fixed to the lower end of the first shock absorption column; the friction plate is installed inside the first shock absorption column.

[0016] As a further embodiment of this utility model, the shock absorption assembly further includes a second shock absorption column; the second shock absorption column is welded to the upper end of the friction plate, and the upper end of the second shock absorption column is welded to the inner upper wall of the working box.

[0017] As a further embodiment of this utility model, the limiting component further includes a push block and a lead screw; the push block is welded to one side of the pressure plate; and the lead screw is threaded into the interior of the push block.

[0018] As a further improvement of this utility model, the limiting component further includes a radar module and an ultrasonic probe; the radar module is disposed at the lower end of the connecting plate; and the ultrasonic probe is disposed on one side of the radar module.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. This utility model involves mounting the work box on the upper end of a water pipe, with two parallel sliding grooves symmetrically arranged at its bottom. The first and second fixing blocks are slidably connected to the sliding grooves via a top slider. Pushing the first and second fixing blocks to move towards each other along the sliding grooves causes the second limiting block fixed at the lower end of the first fixing block and the first limiting block fixed at the lower end of the second fixing block to move closer together until their end faces are in contact. At this time, the limiting hole on the side wall of the first limiting block is aligned with the third limiting block (which is protruding) on ​​the second limiting block. Pulling the limiting post that passes through the first limiting block causes the first return spring to deform. After the third limiting block is fully embedded in the limiting hole of the first limiting block, the limiting post is released, and the first return spring rebounds and pulls the limiting post through the through hole of the third limiting block, completing the initial fixing of the first and second fixing blocks.

[0021] 2. This utility model rotates the lead screw on the outside of the first and second fixed blocks. The lead screw is connected to the first and second fixed blocks through bearings, which drives the push block at the end of the lead screw to move towards the water pipe. This, in turn, drives the pressure plate to squeeze the outer wall of the water pipe. By increasing the static friction, secondary fixing is achieved, ensuring that the device is rigidly attached to the water pipe and avoiding angular deviation caused by relative displacement during measurement.

[0022] 3. This utility model uses a radar module to vertically emit fixed-frequency microwaves into the pipe to collect the fluid surface velocity signal in real time; the ultrasonic probe emits low-frequency ultrasonic waves to collect the fluid water depth signal in real time. The signal processor inside the working box first uses an adaptive filtering algorithm to denoise the original signal, and then calculates the flow rate based on the denoised flow velocity and water depth using a dual-mode data fusion algorithm. This effectively avoids the failure problem of traditional contact sensors caused by garbage and silt covering, and is suitable for complex working conditions such as water pipe siltation and eccentric flow. Attached Figure Description

[0023] Figure 1 This is a side view of a non-contact drainage pipe radar-ultrasonic dual-mode flow meter according to the present invention.

[0024] Figure 2 This is a cross-sectional view of a non-contact drainage pipe radar-ultrasonic dual-mode flow meter according to this utility model.

[0025] Figure 3 This is a rear view of a non-contact drainage pipe radar-ultrasonic dual-mode flow meter according to the present invention.

[0026] Figure 4 This is a partial structural diagram of the fixing component of this utility model;

[0027] Figure 5 This is a partial structural diagram of the shock absorption component of this utility model.

[0028] In the diagram: 1. Fixing assembly; 101. Working box; 102. First fixing block; 103. Second fixing block; 104. First limiting block; 105. Second limiting block; 106. Third limiting block; 107. Limiting post; 108. First return spring; 2. Shock absorption assembly; 201. Connecting plate; 202. First shock absorption post; 203. Second shock absorption post; 204. Friction plate; 205. Second return spring; 3. Limiting assembly; 301. Radar module; 302. Ultrasonic probe; 303. Water pipe; 304. Lead screw; 305. Push block; 306. Pressure plate. Detailed Implementation

[0029] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0030] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0031] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0032] Example 1:

[0033] Please see Figures 1-5 This is the first embodiment of the present utility model.

[0034] This embodiment provides a non-contact radar-ultrasonic dual-mode flow meter for drainage pipes, including a fixing component 1; a shock-absorbing component 2 to reduce vibration; and a limiting component 3 to prevent deviation during measurement.

[0035] The fixing component 1 includes: a work box 101; a first fixing block 102 slidably connected to the lower right side of the work box 101; and a second fixing block 103 slidably connected to the lower left side of the work box 101.

[0036] The shock absorption assembly 2 includes: a second return spring 205 connected to the upper wall inside the work box 101; and a first shock absorption column 202 fixed to the lower end of the second return spring 205;

[0037] The limiting component 3 includes: a water pipe 303 disposed inside the lower part of the work box 101; and a pressure plate 306 disposed at the lower end of the water pipe 303.

[0038] Specifically, the fixing component 1 also includes: a first limiting block 104 and a second limiting block 105; the first limiting block 104 is welded to the lower end of the second fixing block 103; and the second limiting block 105 is welded to the lower end of the first fixing block 102.

[0039] Furthermore, the second limiting block 105 fixed to the lower end of the first fixing block 102 and the first limiting block 104 fixed to the lower end of the second fixing block 103 approach each other simultaneously until their end faces are in contact; at this time, the limiting hole preset on the side wall of the first limiting block 104 is aligned with the third limiting block 106 on the second limiting block 105 in a raised shape.

[0040] Specifically, the fixing component 1 also includes: a third limiting block 106 and a first reset spring 108; the third limiting block 106 is welded to the left side of the second limiting block 105; the first reset spring 108 is disposed at the front end of the first limiting block 104.

[0041] Furthermore, the limiting post 107 of the first limiting block 104 is moved through, causing the first return spring 108 to deform. When the third limiting block 106 is fully embedded in the limiting hole of the first limiting block 104, the first return spring 108 rebounds and pulls the limiting post 107 through the through hole of the third limiting block 106.

[0042] Specifically, the fixing component 1 also includes: a limiting post 107; the limiting post 107 is fixed to the other end of the first reset spring 108, and the limiting post 107 passes through the interior of the first limiting block 104.

[0043] Furthermore, the limiting post 107 that passes through the first limiting block 104 is pulled, causing the first reset spring 108 to deform.

[0044] In use, the work box 101 is first placed on the upper end of the water pipe 303. Two parallel sliding grooves are symmetrically arranged at its bottom. The first fixing block 102 and the second fixing block 103 are slidably connected to the sliding grooves via a top slider. Pushing the first fixing block 102 and the second fixing block 103 to move towards each other along the sliding grooves causes the second limiting block 105 fixed to the lower end of the first fixing block 102 and the first limiting block 104 fixed to the lower end of the second fixing block 103 to move closer together until their end faces are in contact. At this time, the first limiting block... The pre-set limiting hole on the side wall of 104 is aligned with the protruding third limiting block 106 on the second limiting block 105. Pulling the limiting post 107 that passes through the first limiting block 104 causes the first return spring 108 to deform. After the third limiting block 106 is fully embedded in the limiting hole of the first limiting block 104, the limiting post 107 is released. The first return spring 108 rebounds and pulls the limiting post 107 through the through hole of the third limiting block 106, completing the initial fixing of the first fixing block 102 and the second fixing block 103.

[0045] In summary, this utility model mounts the work box 101 on the upper end of the water pipe 303, with two parallel sliding grooves symmetrically arranged at its bottom. The first fixing block 102 and the second fixing block 103 are slidably connected to the sliding grooves via a top slider. Pushing the first fixing block 102 and the second fixing block 103 to move towards each other along the sliding grooves causes the second limiting block 105 fixed at the lower end of the first fixing block 102 and the first limiting block 104 fixed at the lower end of the second fixing block 103 to move closer together until their end faces are in contact. At this time, the first limiting block 105... The pre-set limiting hole on the side wall of the positioning block 104 is aligned with the protrusion of the third limiting block 106 on the second limiting block 105. Pulling the limiting post 107 that passes through the first limiting block 104 causes the first return spring 108 to deform. After the third limiting block 106 is fully embedded in the limiting hole of the first limiting block 104, the limiting post 107 is released. The first return spring 108 rebounds and pulls the limiting post 107 through the through hole of the third limiting block 106, completing the initial fixation of the first fixing block 102 and the second fixing block 103. This invention utilizes a rotating lead screw 304 located on the outer side of the first fixing block 102 and the second fixing block 103. The lead screw 304 is connected to the first fixing block 102 and the second fixing block 103 via bearings. This causes the push block 305 at the end of the lead screw 304 to move towards the water pipe 303, thereby causing the pressure plate 306 to press against the outer wall of the water pipe 303. By increasing static friction, secondary fixation is achieved, ensuring that the device is rigidly attached to the water pipe 303 and avoiding angular deviations caused by relative displacement during measurement.

[0046] Example 2:

[0047] Please see Figures 1-5 This is the second embodiment of the present utility model.

[0048] Specifically, the damping assembly 2 also includes: a connecting plate 201 and a friction plate 204; the connecting plate 201 is fixed to the lower end of the first damping column 202; the friction plate 204 is installed inside the first damping column 202.

[0049] Furthermore, the friction plate 204 rubs against the first damping column 202, and the surface of the first damping column 202 is provided with anti-slip texture, which consumes vibration energy through friction.

[0050] Specifically, the shock absorption assembly 2 also includes: a second shock absorption column 203; the second shock absorption column 203 is welded to the upper end of the friction plate 204, and the upper end of the second shock absorption column 203 is welded to the inner upper wall of the working box 101.

[0051] Furthermore, the vibration force is transmitted to the working box 101, which drives the second damping column 203 to move, and in turn drives the friction plate 204 at the end.

[0052] Specifically, the limiting component 3 also includes: a push block 305 and a lead screw 304; the push block 305 is welded to one side of the pressure plate 306; the lead screw 304 is threaded into the inside of the push block 305.

[0053] Furthermore, the rotation of the lead screw 304 causes the push block 305 at the end of the lead screw 304 to move towards the water pipe 303.

[0054] Specifically, the limiting component 3 also includes: a radar module 301 and an ultrasonic probe 302; the radar module 301 is located at the lower end of the connecting plate 201; the ultrasonic probe 302 is located on one side of the radar module 301.

[0055] Furthermore, the radar module 301 vertically emits fixed-frequency microwaves into the pipe to collect the fluid surface velocity signal in real time; the ultrasonic probe 302 emits low-frequency ultrasonic waves to collect the fluid water depth signal in real time. The signal processor inside the working box 101 first uses an adaptive filtering algorithm to denoise the original signal, and then calculates the flow rate based on the denoised flow velocity and water depth using a dual-mode data fusion algorithm.

[0056] In use, the lead screw 304 on the outside of the first fixing block 102 and the second fixing block 103 is rotated. The lead screw 304 is connected to the first fixing block 102 and the second fixing block 103 through bearings, which drives the push block 305 at the end of the lead screw 304 to move towards the water pipe 303. This, in turn, drives the pressure plate 306 to squeeze the outer wall of the water pipe 303, thereby increasing the static friction to achieve secondary fixation and ensuring that the device is rigidly attached to the water pipe 303, avoiding angular deviation caused by relative displacement during measurement. After fixation, the radar module 301 emits fixed-frequency microwaves vertically into the pipe to collect the fluid surface velocity signal in real time; the ultrasonic probe 302 emits low-frequency ultrasonic waves to collect the fluid water depth signal in real time. The signal processor inside the working box 101 first uses an adaptive filtering algorithm to denoise the original signal, and then calculates the flow rate based on the denoised flow velocity and water depth using a dual-mode data fusion algorithm. This effectively avoids the failure problem of traditional contact sensors caused by garbage and silt cover, and is suitable for complex working conditions such as siltation in the water pipe 303 and eccentric flow. When the water pipe 303 vibrates, the vibration force is transmitted to the working box 101, which drives the second damping column 203 to move, and then drives the friction plate 204 at the end to rub against the first damping column 202. The surface of the first damping column 202 is provided with anti-slip texture, which consumes vibration energy through friction. At the same time, the second return spring 205 generates a rebound force due to deformation, which pushes the friction plate 204 to return to its original position, ensuring the stability of radar or ultrasonic signals.

[0057] In summary, this utility model uses a radar module 301 to vertically emit fixed-frequency microwaves into the pipe to collect the fluid surface velocity signal in real time; an ultrasonic probe 302 emits low-frequency ultrasonic waves to collect the fluid water depth signal in real time; and a signal processor inside the working box 101 first uses an adaptive filtering algorithm to denoise the original signal, and then calculates the flow rate based on the denoised flow velocity and water depth using a dual-mode data fusion algorithm. This effectively avoids the failure problem of traditional contact sensors caused by garbage and silt covering, and is suitable for complex working conditions such as siltation and eccentric flow in water pipes 303.

[0058] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0059] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0060] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0061] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A non-contact radar-ultrasonic dual-mode flow meter for drainage pipelines, characterized in that: include: Fixing component (1); shock-absorbing component to reduce vibration force (2); limiting component to prevent deviation during measurement (3); The fixing component (1) includes: a work box (101); a first fixing block (102) slidably connected to the lower right side of the work box (101); and a second fixing block (103) slidably connected to the lower left side of the work box (101). The shock absorption assembly (2) includes: a second return spring (205) connected to the upper wall inside the work box (101); and a first shock absorption column (202) fixed to the lower end of the second return spring (205); The limiting component (3) includes: a water pipe (303) disposed inside the lower part of the work box (101); and a pressure plate (306) disposed at the lower end of the water pipe (303).

2. The non-contact drainage pipe radar-ultrasonic dual-mode flow meter according to claim 1, characterized in that: The fixing component (1) further includes: a first limiting block (104) and a second limiting block (105); the first limiting block (104) is welded to the lower end of the second fixing block (103); the second limiting block (105) is welded to the lower end of the first fixing block (102).

3. A non-contact drainage pipeline radar-ultrasonic dual-mode flow meter according to claim 2, characterized in that: The fixing component (1) further includes: a third limiting block (106) and a first reset spring (108); the third limiting block (106) is welded to the left side of the second limiting block (105); the first reset spring (108) is disposed at the front end of the first limiting block (104).

4. A non-contact drainage pipe radar-ultrasonic dual-mode flow meter according to claim 3, characterized in that: The fixing component (1) further includes: a limiting post (107); the limiting post (107) is fixed to the other end of the first reset spring (108), and the limiting post (107) passes through the interior of the first limiting block (104).

5. A non-contact drainage pipe radar-ultrasonic dual-mode flow meter according to claim 1, characterized in that: The shock absorption assembly (2) further includes: a connecting plate (201) and a friction plate (204); the connecting plate (201) is fixed to the lower end of the first shock absorption column (202); the friction plate (204) is installed inside the first shock absorption column (202).

6. A non-contact drainage pipe radar-ultrasonic dual-mode flow meter according to claim 5, characterized in that: The shock absorption assembly (2) further includes: a second shock absorption column (203); the second shock absorption column (203) is welded to the upper end of the friction plate (204), and the upper end of the second shock absorption column (203) is welded to the inner upper wall of the working box (101).

7. A non-contact drainage pipe radar-ultrasonic dual-mode flow meter according to claim 1, characterized in that: The limiting component (3) further includes: a push block (305) and a lead screw (304); the push block (305) is welded to one side of the pressure plate (306); the lead screw (304) is threaded into the inside of the push block (305).

8. A non-contact drainage pipe radar-ultrasonic dual-mode flow meter according to claim 5, characterized in that: The limiting component (3) further includes: a radar module (301) and an ultrasonic probe (302); the radar module (301) is located at the lower end of the connecting plate (201); the ultrasonic probe (302) is located on one side of the radar module (301).

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