Time-difference-method multichannel flow velocity meter sensor

Abstract

The utility model relates to the technical field of open channel flow velocity measurement, in particular to a time difference method multichannel flow velocity meter sensor, which comprises an embedded shell, an ultrasonic transducer mounting plate and a support rod, by designing the embedded shell and the ultrasonic transducer mounting plate fixedly connected with the embedded shell in a mounting mode, the embedded shell has the advantages that the embedded shell can be fixedly mounted on one side of a river channel conveniently, damage to an ultrasonic transducer does not need to be considered in the mounting process, and the embedded shell can be mounted on the other side of the river channel conveniently; the ultrasonic transducer mounting plate is provided with an arc-shaped bending part which is easy to deform, and the orientation of the ultrasonic transducer mounting plate can be adjusted by matching with the fixation of the locking rack and the clamping tooth piece, so that the ultrasonic transducers on the two sides of the open channel are ensured to be opposite, and the arrangement and the installation of the time difference method multichannel flow velocity meter sensor become convenient and rapid.

Description

Technical Field

[0001] The utility model relates to the technical field of open channel flow velocity measurement, in particular to a time difference method multi-channel flow meter sensor. Background Art

[0002] The time-difference multi-channel flow meter sensor is a device that uses multiple sets of ultrasonic transducers to send and receive ultrasonic signals and calculates the velocity of the fluid based on the propagation time difference of the ultrasonic wave in the downstream and upstream directions of the liquid.

[0003] like Figure 7 As shown in the figure, the first transducer 19 and the second transducer 20 are arranged on both sides of the open channel 18 relatively. For example, the first transducer 19 sends an ultrasonic signal, which is received by the second transducer 20, or the second transducer 20 sends an ultrasonic signal, which is received by the first transducer 19, and then cooperates with the integrator to acquire data and calculate the flow velocity information of the water flow.

[0004] When installing the first transducer 19 and the second transducer 20, it is necessary to ensure that the two are relative. Generally, the first transducer 19 and the second transducer 20 both need to be diagonally opposite to the water flow at a 45° angle. Some current time-difference multi-channel flowmeter sensors cannot be adjusted during installation, especially some shells need to be pre-embedded and fixed to the river bank. The unadjustable structure brings great trouble to the subsequent installation. For this reason, the utility model provides a time-difference multi-channel flowmeter sensor. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a time difference method multi-channel flow meter sensor.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solution: a time difference method multi-channel flow meter sensor, comprising:

[0007] An embedded shell is in the shape of a triangular prism and is fixedly installed on one side of the river channel, and one end of the embedded shell that is inclined outward is an opening;

[0008] An ultrasonic transducer mounting plate, wherein an arc-shaped bending portion is fixedly connected to one side of the ultrasonic transducer mounting plate, a connecting portion is fixedly connected to a side of the arc-shaped bending portion away from the ultrasonic transducer mounting plate, and the connecting portion is fixedly mounted to a flange plate outside the opening of the embedded housing;

[0009] Two locking teeth are fixedly connected to the upper and lower sides of one side of the ultrasonic transducer mounting plate facing the embedded housing, and a locking tooth piece corresponding to the two locking teeth is fixedly connected to the inner side of the embedded housing;

[0010] A support rod, the support rod is located between the two locking racks, and the support rod is slidably connected to the two locking racks along the length direction of the locking racks;

[0011] The ultrasonic transducer mounting plate is fixedly connected with an ultrasonic transducer.

[0012] As a further description of the above technical solution:

[0013] A wire box is fixedly mounted on the first back side of the embedded housing, a guide protection tube is fixedly connected to the top of the wire box, and the wire harness of the ultrasonic transducer passes through the wire box.

[0014] As a further description of the above technical solution:

[0015] The top end of the guide protection tube is located above the liquid level of the river channel, and a wire sleeve is fixedly installed on the top end of the guide protection tube. The wire sleeve is sealed and connected to the top port of the guide protection tube and the outer side of the wire harness of the ultrasonic transducer.

[0016] As a further description of the above technical solution:

[0017] The second back side of the embedded housing is provided with a mounting hole.

[0018] As a further description of the above technical solution:

[0019] The bottom of the upper locking tooth bar and the top of the lower locking tooth bar are both fixedly connected with sliding bars, and the two ends of the support rod are respectively slidably connected with the two sliding bars.

[0020] As a further description of the above technical solution:

[0021] The outer sliding sleeve of the guide protection tube is provided with a floating plate.

[0022] As a further description of the above technical solution:

[0023] The outer side of the connecting portion is fixedly connected with a first ridge, and the outer side of the flange plate outside the opening of the embedded housing is fixedly connected with a second ridge;

[0024] It also includes: a frame-shaped clamp, which is clamped on the flange plate outside the connecting portion and the opening of the embedded shell, and the frame-shaped clamp is provided with notches corresponding to the first convex ridge and the second convex ridge.

[0025] The utility model has the following beneficial effects:

[0026] 1. Compared with the prior art, the time-difference method multi-channel velocity meter sensor is designed with an embedded shell and an ultrasonic transducer mounting plate fixedly connected to the embedded shell by an installation method: one of its advantages is that it is convenient to fix the embedded shell on one side of the river channel, and it is not necessary to consider the damage to the ultrasonic transducer during the installation process. The second advantage is that the ultrasonic transducer mounting plate has an arc-shaped bending portion, which is easy to deform. With the fixation of the locking rack and the clamping tooth part, the direction of the ultrasonic transducer mounting plate can be adjusted, that is, it is convenient to ensure that the ultrasonic transducers on both sides of the open channel are relative, thereby making the arrangement and installation of the time-difference method multi-channel velocity meter sensor convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A three-dimensional diagram of a time-difference multi-channel velocity meter sensor proposed by the utility model;

[0028] Figure 2 It is a front view of a time difference method multi-channel velocity meter sensor proposed by the utility model;

[0029] Figure 3 It is a partial stereogram of a time difference method multi-channel velocity meter sensor proposed by the utility model;

[0030] Figure 4 for Figure 3 A partial enlarged view of the middle part;

[0031] Figure 5 This is a first-perspective stereogram of a disassembled state of a time-difference method multi-channel velocity meter sensor proposed by the utility model;

[0032] Figure 6 A second-angle stereoscopic view of a disassembled state of a time-difference multi-channel velocity meter sensor proposed by the utility model;

[0033] Figure 7 The schematic diagram is a schematic diagram of using an existing time-difference multi-channel velocity meter sensor to detect flow velocity in an open channel.

[0034] Legend:

[0035] 1. Embedded housing; 2. Wire box; 3. Guide protection tube; 4. Float; 5. Ultrasonic transducer mounting plate; 6. Connecting part; 7. Arc-shaped bending part; 8. First convex ridge; 9. Frame-type clamp; 10. Second convex ridge; 11. Flange plate; 12. Mounting hole; 13. Locking rack; 14. Clamping gear; 15. Sliding bar; 16. Support rod; 17. Wire sleeve; 18. Open channel; 19. First transducer; 20. Second transducer. DETAILED DESCRIPTION

[0036] Reference Figure 1-Figure 7The utility model provides a time-difference method multi-channel flow meter sensor, comprising: an embedded shell 1, an ultrasonic transducer mounting plate 5, and a strut 16; wherein the embedded shell 1 is in the shape of a triangular prism and is fixedly installed on one side of the river channel. It is preferably fixed and installed by screws in combination with cement inlaying to make the embedded shell 1 more stable. The obliquely outward end of the embedded shell 1 is an opening, and the ultrasonic transducer mounting plate 5 is installed at the opening. An arc-shaped bending portion 7 is fixedly connected to one side of the ultrasonic transducer mounting plate 5, and a connecting portion 6 is fixedly connected to the side of the arc-shaped bending portion 7 away from the ultrasonic transducer mounting plate 5. The ultrasonic transducer mounting plate 5, the arc-shaped bending portion 7, and the connecting portion 6 are preferably made of an integrally bent stainless steel sheet, and the connecting portion 6 is fixedly installed to the flange plate 11 outside the opening of the embedded shell 1.

[0037] Two locking racks 13 are fixedly connected to the upper and lower sides of the ultrasonic transducer mounting plate 5 facing one side of the embedded shell 1, that is, one locking rack 13 is located at the top and the other locking rack 13 is located at the bottom. The inner side of the embedded shell 1 is fixedly connected to the two locking racks 13. The corresponding locking racks 14 are also designed in two groups, which correspond to the locking racks 13 one by one.

[0038] After the connection part 6 is fixedly installed with the flange plate 11 outside the opening of the embedded shell 1, the locking tooth bar 13 can be inserted into the interior of the embedded shell 1 to produce a one-way lock with the locking tooth part 14. The user can adjust the direction of the ultrasonic transducer mounting plate 5 appropriately according to actual requirements.

[0039] The support rod 16 is located between the two locking racks 13, and the support rod 16 is slidably connected to the two locking racks 13 along the length direction of the locking racks 13. When the locking rack 13 is locked with the latching tooth 14, the locking rack 13 is deformed and gives way. After the adjustment is completed, in order to avoid external interference (such as water flow, collision with debris, etc.) that causes the position of the ultrasonic transducer mounting plate 5 to continue to be adjusted, the support rod 16 is slid to the position corresponding to the latching tooth 14, so that the locking rack 13 is not easy to deform and give way, thereby ensuring that it is not easy to change its position and ensuring stability during use.

[0040] For example, when the position of the ultrasonic transducer mounting plate 5 needs to be adjusted, the support rod 16 is slid to the end of the lock rack 13 close to the ultrasonic transducer mounting plate 5, so that it does not affect the deformation and displacement of the end of the lock rack 13 away from the ultrasonic transducer mounting plate 5. After the position adjustment is completed, the support rod 16 is slid along the lock rack 13 to the position corresponding to the latching tooth 14, so that the lock rack 13 is not easily deformed and displaced.

[0041] The ultrasonic transducer mounting plate 5 is fixedly connected with the ultrasonic transducer, and the direction of the ultrasonic transducer can be adjusted by means of the ultrasonic transducer mounting plate 5 .

[0042] like Figure 7 The time-difference multi-channel flow meter sensor shown in is generally used in combination with at least two sets of time-difference multi-channel flow meter sensors. This solution introduces a time-difference multi-channel flow meter sensor structure. When in use, at least two sets of time-difference multi-channel flow meter sensors are required to cooperate to detect a clear flow rate.

[0043] In one embodiment, a wire box 2 is fixedly installed on the first back side of the embedded shell 1, and a guide protection tube 3 is fixedly connected to the top of the wire box 2. The wire harness of the ultrasonic transducer passes through the wire box 2 and the guide protection tube 3 and extends upward, so that the ultrasonic transducer is visible. The top of the guide protection tube 3 is located above the liquid level of the river channel, so that the power supply module, the signal acquisition module, and the processing module installed on the river bank are electrically connected to the ultrasonic transducer. A wire sleeve 17 is fixedly installed on the top of the guide protection tube 3. The wire sleeve 17 is sealed and connected to the top port of the guide protection tube 3 and the outside of the wire harness of the ultrasonic transducer to prevent debris from entering the interior of the guide protection tube 3 from the top port of the guide protection tube 3.

[0044] In one embodiment, a mounting hole 12 is formed on the second back surface of the embedded housing 1 for fixing the embedded housing 1 to other structures by screws or bolts.

[0045] In one embodiment, the bottom of the upper locking rack 13 and the top of the lower locking rack 13 are both fixedly connected with the sliding bars 15 , and both ends of the support rod 16 are slidably connected to the two sliding bars 15 .

[0046] In one embodiment, a floating plate 4 is provided on the outer sliding sleeve of the guide protection tube 3. The guide protection tube 3 is vertically arranged and can be used as a water depth marking structure. The side thereof can be marked with scales, which cooperates with the indicating function of the floating plate 4 to facilitate observation of the water depth value.

[0047] In one embodiment, a first ridge 8 is fixedly connected to the outer side of the connecting portion 6 , and a second ridge 10 is fixedly connected to the outer side of the flange plate 11 on the outer side of the opening of the embedded housing 1 .

[0048] The frame-shaped clamp 9 is clamped on the flange plate 11 outside the opening of the connecting portion 6 and the embedded shell 1, and a notch corresponding to the first convex ridge 8 and the second convex ridge 10 is provided on the frame-shaped clamp 9. The structure of the first convex ridge 8 and the second convex ridge 10 makes it difficult for the frame-shaped clamp 9 to slide with the connecting portion 6 and the flange plate 11 outside the opening of the embedded shell 1, making the connection more stable.

[0049] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A time-difference multi-channel velocity meter sensor, characterized in that: include: An embedded shell (1), the embedded shell (1) is in the shape of a triangular prism and is fixedly installed on one side of a river channel, and one end of the embedded shell (1) that is inclined outward is an opening; An ultrasonic transducer mounting plate (5), wherein an arc-shaped bent portion (7) is fixedly connected to one side of the ultrasonic transducer mounting plate (5), a connecting portion (6) is fixedly connected to the side of the arc-shaped bent portion (7) away from the ultrasonic transducer mounting plate (5), and the connecting portion (6) is fixedly mounted to a flange plate (11) outside the opening of the embedded housing (1); Two locking tooth bars (13) are fixedly connected to the upper and lower sides of a side surface of the ultrasonic transducer mounting plate (5) facing the embedded housing (1), and a latching tooth piece (14) corresponding to the two locking tooth bars (13) is fixedly connected to the inner side of the embedded housing (1); A support rod (16), wherein the support rod (16) is located between the two locking racks (13), and the support rod (16) is slidably connected to the two locking racks (13) along the length direction of the locking racks (13); The ultrasonic transducer mounting plate (5) is fixedly connected with an ultrasonic transducer.

2. A time-difference multi-channel velocity meter sensor according to claim 1, characterized in that: A wire box (2) is fixedly mounted on the first back surface of the embedded housing (1), a guide protection tube (3) is fixedly connected to the top of the wire box (2), and the wire harness of the ultrasonic transducer passes through the wire box (2).

3. A time-difference multi-channel velocity meter sensor according to claim 2, characterized in that: The top end of the guide protection tube (3) is located above the liquid level of the river channel, and a wire sleeve (17) is fixedly installed on the top end of the guide protection tube (3), and the wire sleeve (17) is sealed and connected to the top end of the guide protection tube (3) and the outer side of the wire harness of the ultrasonic transducer.

4. A time-difference multi-channel velocity meter sensor according to claim 1, characterized in that: A mounting hole (12) is provided on the second back side of the embedded housing (1).

5. A time-difference multi-channel velocity meter sensor according to claim 1, characterized in that: The bottom of the upper locking tooth bar (13) and the top of the lower locking tooth bar (13) are both fixedly connected with a sliding bar (15), and the two ends of the support rod (16) are respectively slidably connected with the two sliding bars (15).

6. A time-difference multi-channel velocity meter sensor according to claim 3, characterized in that: The outer sliding sleeve of the guide protection tube (3) is provided with a floating plate (4).

7. The time-difference multi-channel flow meter sensor according to claim 1, characterized in that: The outer side of the connecting portion (6) is fixedly connected to a first ridge (8), and the outer side of the flange plate (11) outside the opening of the embedded housing (1) is fixedly connected to a second ridge (10); The invention also comprises a frame-shaped clamp (9), wherein the frame-shaped clamp (9) is clamped on a flange plate (11) outside the opening of the connecting portion (6) and the embedded shell (1), and the frame-shaped clamp (9) is provided with notches corresponding to the first convex ridge (8) and the second convex ridge (10).

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