Ultrasonic flowmeter transducer

Abstract

The utility model relates to the technical field of ultrasonic flow meters, and discloses an ultrasonic flow meter transducer which comprises a transducer body, a connecting rod is fixedly connected to the transducer body, a mounting plate used for being connected with a flow meter sensor shell is arranged above the transducer body, a rotating opening is formed in the mounting plate, and the connecting rod is fixedly connected to the transducer body. A rotatable connecting ball is arranged in the rotating opening, the top end of the connecting rod is fixed to the connecting ball, a control rod is fixed to the connecting ball, the connecting rod and the control rod are arranged oppositely, and a fixing assembly is arranged on the connecting ball. When the device provided by the utility model is applied, the transducer can be adjusted at multiple angles in a three-dimensional space, so that the installation flexibility and practicability in a complex environment are greatly improved, various installation requirements and installation scenes are met, meanwhile, the requirement of the device on the installation position on a channel is reduced, the installation difficulty is reduced, the operation process is simplified, and the installation efficiency is improved. And the installation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrasonic flowmeters, in particular to an ultrasonic flowmeter transducer. Background Art

[0002] Ultrasonic flowmeter transducer is a key component in ultrasonic flowmeter, which is used to transmit and receive ultrasonic signals to measure the flow velocity and flow rate of fluid. Ultrasonic flowmeter usually uses time difference method or Doppler method to measure fluid flow. It is widely used in industrial production, such as petroleum, chemical, water treatment and other industries, to monitor and control the flow of liquid or gas in pipelines.

[0003] After searching, the ultrasonic flowmeter transducer bracket with the authorization announcement number CN212300461U is composed of a base and a rotating body. The ultrasonic transducer is fixed in the rotating body. The base and the rotating body are in contact through an arc surface. The rotating body can rotate to a certain angle. When the rotating body is adjusted to a suitable angle, the position can be locked by an external locking device. This can reduce the difficulty of adjusting the transducer after it is installed in the channel. However, the above technical solution still has the following shortcomings when it is actually used:

[0004] The transducer in the prior art has an arc-shaped structure on the inner side of the base, and the rotating body can only rotate in the vertical direction inside the base, but cannot rotate in other directions. In this way, the adjustment angle of the transducer is greatly limited. The limited adjustment angle may make it difficult for the transducer to adapt to the geometric shapes and installation conditions of different pipes. For example, in an environment with a small space or a complex pipeline layout, it may not be possible to find a suitable angle to install the transducer, thereby affecting the deployment of the equipment. Secondly, due to the limited adjustment angle when aligning the transmitting end transducer and the receiving end transducer, fine adjustment is required during installation, which increases the difficulty and tediousness of the installation work for the staff. In particular, for the transducer installed in the channel, it is difficult to adjust the drilling position on the channel and the angle of the shell installation, which also reduces the efficiency of the installation.

[0005] Therefore, it is necessary to design an ultrasonic flow meter transducer to solve the above problems. Utility Model Content

[0006] The utility model aims to solve the shortcomings in the prior art and proposes an ultrasonic flow meter transducer.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] An ultrasonic flow meter transducer comprises a transducer body, to which a connecting rod is fixedly connected, a mounting plate for connecting to a flow meter sensor housing is provided above the transducer body, a rotating opening is provided on the mounting plate, a rotatable connecting ball is provided inside the rotating opening, the top end of the connecting rod is fixed to the connecting ball, a control rod is fixed to the connecting ball, and the connecting rod and the control rod are arranged opposite each other, and a fixing component is provided on the connecting ball.

[0009] As a preferred technical solution of the utility model, the fixing component includes a plurality of grooves opened on the surface of the connecting ball, an airbag is fixed inside the groove, a cavity is provided inside the control rod, a sliding plug is sealingly and slidably connected in the cavity, a push rod is fixed on the upper surface of the sliding plug, and the top end of the push rod extends to the top of the control rod, the push rod is slidably connected to the control rod, an electrorheological fluid 1 is provided in the cavity, and the electrorheological fluid 1 is located at the bottom of the sliding plug, a connecting pipe is connected to the bottom surface of the cavity, and the connecting pipe is respectively connected to all the airbags.

[0010] As a preferred technical solution of the utility model, a plurality of connecting grooves are provided on the inner side of the rotating opening.

[0011] As a preferred technical solution of the utility model, the cross section of the push rod is a T-shaped structure, the inner top surface of the push rod and the top end of the control rod are both fixed with a conductive plate, and the cross section of the conductive plate is a circular ring structure.

[0012] As a preferred technical solution of the utility model, the fixing sleeve on the connecting rod is provided with a waterproof cover, and the waterproof cover is made of rubber.

[0013] As a preferred technical solution of the utility model, the interior of the side wall of the waterproof cover is hollow, and an electrorheological fluid 2 is arranged inside the side wall of the waterproof cover.

[0014] The utility model has the following beneficial effects:

[0015] 1. Enhanced installation flexibility: The combination of the control rod and the connecting ball allows the transducer body to be adjusted at multiple angles in three-dimensional space, greatly improving the installation flexibility in complex environments, adapting to various installation requirements and installation scenarios, and improving the practicality of the device;

[0016] 2. Reduce the difficulty of operation: As the adjustment angle and range of the transducer body increase, the requirements for the installation position of the device on the channel are reduced. The staff does not need to carefully calculate the position and angle of the transmitting transducer and the receiving transducer during the installation process, which reduces the difficulty of installation, simplifies the operation process, and also improves the installation efficiency;

[0017] 3. Simplify the operation process: The state conversion of the electrorheological fluid is automatically controlled by the conductive plate, which simplifies the operation steps. The staff only needs to adjust the transducer to the required position and press down the push rod to complete the fixing operation. Compared with the bolt fixing method in the prior art, this design improves work efficiency and simplifies the operation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a structural schematic diagram of an ultrasonic flowmeter transducer proposed by the utility model;

[0019] Figure 2 It is a schematic diagram of the structure inside the control rod;

[0020] Figure 3 A schematic diagram of the internal structure of the connecting ball and the mounting plate;

[0021] Figure 4 for Figure 3 A magnified view of the structure at A.

[0022] In the figure: 1 transducer body, 2 mounting plate, 3 connecting rod, 4 rotating port, 5 connecting ball, 6 control rod, 7 cavity, 8 push rod, 9 sliding plug, 10 electrorheological fluid 1, 11 connecting pipe, 12 slot, 13 air bag, 14 conductive plate, 15 connecting slot, 16 waterproof cover, 17 electrorheological fluid 2. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Reference Figure 1-3, an ultrasonic flowmeter transducer, comprising a transducer body 1, a connecting rod 3 is fixedly connected to the transducer body 1, a mounting plate 2 for connecting to a flowmeter sensor housing is arranged above the transducer body 1, the sensor comprises the transducer body 1 and other circuits, the transducer body 1 is a core component of the sensor, responsible for the conversion of energy forms, other circuits are used for signal processing and conversion, and providing flow data, a rotating port 4 is opened on the mounting plate 2, a rotatable connecting ball 5 is arranged inside the rotating port 4, the connecting ball 5 can rotate freely in the rotating port 4 in a 360° direction, the inner side of the rotating port 4 is adapted to the surface of the connecting ball 5, the top of the connecting rod 3 is connected to the connecting ball 5 A control rod 6 is fixed on the connecting ball 5, and the control rod 6 extends to the outside of the sensor from one end away from the transducer body 1, so that the angle of the device can be adjusted after the transducer body 1 is installed, thereby improving the flexibility of the device application, and the connecting rod 3 is arranged opposite to the control rod 6, so that the rotation of the transducer body 1 can be observed through the control rod 6, and a waterproof cover 16 is fixedly sleeved on the connecting rod 3, and the waterproof cover 16 is made of rubber. The waterproof cover 16 can be deformed to ensure the sealing between the mounting plate 2 and the connecting rod 3, and the interior of the side wall of the waterproof cover 16 is hollow, and the interior of the side wall of the waterproof cover 16 is provided with an electrorheological fluid 17, and a fixing component is provided on the connecting ball 5.

[0025] Reference Figure 2-4 The fixing assembly includes a plurality of grooves 12 formed on the surface of the connecting ball 5, an air bag 13 is fixed inside the groove 12, a cavity 7 is provided inside the control rod 6, a sliding plug 9 is sealed and slidably connected in the cavity 7, a push rod 8 is fixed on the upper surface of the sliding plug 9, and the top end of the push rod 8 extends to the top of the control rod 6, the push rod 8 is slidably connected to the control rod 6, an electrorheological fluid 10 is provided in the cavity 7, and the electrorheological fluid 10 is located at the bottom of the sliding plug 9. Specifically, the electrorheological fluid 10 and the electrorheological fluid 2 17 are a suspension, which is in liquid state under normal conditions, and will change from liquid state to solid state when subjected to an electric field. The structure and working principle are both prior art and will not be described in detail here. The electrorheological fluid 1 10 and electrorheological fluid 2 17 are connected to the power supply through wires. By controlling the power supply to be turned on and off, the state of electrorheological fluid 10 and electrorheological fluid 2 17 can be changed. In addition, the inner side of the cavity 7 is wrapped with a rubber layer, and the connecting tube 11, the airbag 13 and the waterproof cover 16 are all made of rubber, so that the internal electrorheological fluid 10 and electrorheological fluid 2 17 will not be affected by the external electric field. A connecting tube 11 is connected on the bottom surface of the cavity 7, and the connecting tube 11 is connected to all the airbags 13 respectively. A plurality of connecting grooves 15 are opened on the inner side of the rotating mouth 4. After the airbag 13 is expanded and deformed, part of it will be located in the connecting groove 15, which can increase the stability of the connection between the rotating mouth 4 and the connecting ball 5.

[0026] Reference Figure 2The cross section of the push rod 8 is a T-shaped structure. The inner top surface of the push rod 8 and the top of the control rod 6 are fixed with a conductive plate 14, and the cross section of the conductive plate 14 is a circular ring structure. The conductive plate 14, the external power supply, and the electrorheological fluid 10 and the electrorheological fluid 2 17 are all connected by wires. The on and off of the circuit can be controlled by directly controlling the switch of the external power supply. The two conductive plates 14 act as switches. When the two conductive plates 14 are in contact, the circuit will be turned on, thereby changing the state of the electrorheological fluid 10 and the electrorheological fluid 2 17. In this way, the staff can fix the connecting ball 5 after pressing down the push rod 8, which simplifies the operation process and improves the installation efficiency.

[0027] The specific working principle of the utility model is as follows:

[0028] The staff installs the transducer body 1 inside the channel, and then rotates the connecting ball 5 outside the channel through the control rod 6. Since the connecting rod 3 is directly opposite to the control rod 6, the rotation of the connecting rod 3 and the transducer body 1 can be known by observing and measuring the rotation angle and amplitude of the control rod 6. When the transducer body 1 is rotated to a suitable position, the staff presses the push rod 8 to move the slide plug 9 downward and squeeze the electrorheological fluid 10. The electrorheological fluid 10 enters all the airbags 13 through the connecting tube 11. The airbag 13 will expand after being filled with liquid, so that the airbag 13 located in the rotating port 4 will be against the inner side of the rotating port 4. Furthermore, since the rotating port 4 is provided with a connecting groove 15, the airbag 13 located in the rotating port 4 will be partially located in the connecting groove 15 after being deformed by the liquid filling and expansion. This can increase the stability of the connection between the connecting ball 5 and the rotating port 4.

[0029] Then, electricity is supplied to the electrorheological fluid 10, and the electrorheological fluid 10 is affected by the electric field, and its state changes from liquid to solid, so that the shape of the airbag 13 and the electrorheological fluid 10 inside it is fixed, and the position of the connecting ball 5 is fixed. Optionally, the inner top surface of the push rod 8 and the top of the control rod 6 are both provided with a conductive plate 14, and the conductive plate 14 controls the on and off of the power supply entering the electrorheological fluid 10. In this way, when the push rod 8 is pressed down to the limit position, the two conductive plates 14 are in contact and the circuit is turned on, so that the electrorheological fluid 10 is turned into a solid state. Such a design facilitates the operation of the staff and improves the installation efficiency of the transducer body 1;

[0030] Furthermore, under the action of the waterproof cover 16, the liquid will not enter the interior of the sensor through the rotating port 4, thereby improving the waterproof protection performance of the device. In the process of rotation of the connecting ball 5 and the connecting rod 3, the waterproof cover 16 will also undergo corresponding deformation, and the electrorheological fluid 17 inside it will also flow inside it. When the position of the connecting ball 5 is adjusted, power is also applied to the electrorheological fluid 17 to make the electrorheological fluid 17 change from liquid to solid. In this way, the shape of the waterproof cover 16 can be fixed, thereby limiting the position of the connecting rod 3, and further improving the stability of the fixation of the transducer body 1.

[0031] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An ultrasonic flow meter transducer, comprising a transducer body (1), characterized in that: A connecting rod (3) is fixedly connected to the transducer body (1); a mounting plate (2) for connecting to the flow meter sensor housing is provided above the transducer body (1); a rotating opening (4) is provided on the mounting plate (2); a rotatable connecting ball (5) is provided inside the rotating opening (4); the top end of the connecting rod (3) is fixed to the connecting ball (5); a control rod (6) is fixed to the connecting ball (5); the connecting rod (3) and the control rod (6) are arranged opposite each other; and a fixing component is provided on the connecting ball (5).

2. An ultrasonic flowmeter transducer according to claim 1, characterized in that: The fixing assembly comprises a plurality of grooves (12) formed on the surface of the connecting ball (5), an airbag (13) being fixed inside the grooves (12), a cavity (7) being provided inside the control rod (6), a sliding plug (9) being sealingly and slidably connected inside the cavity (7), a push rod (8) being fixed on the upper surface of the sliding plug (9), and the top end of the push rod (8) extending to the upper side of the control rod (6), the push rod (8) being slidably connected to the control rod (6), an electrorheological fluid (10) being provided in the cavity (7), and the electrorheological fluid (10) being located at the bottom of the sliding plug (9), a connecting pipe (11) being connected on the inner bottom surface of the cavity (7), and the connecting pipe (11) being respectively connected to all the airbags (13).

3. An ultrasonic flowmeter transducer according to claim 2, characterized in that: A plurality of connection grooves (15) are provided on the inner side of the rotating opening (4).

4. The ultrasonic flowmeter transducer according to claim 2, characterized in that: The push rod (8) has a T-shaped cross section, and a conductive plate (14) is fixed to the inner top surface of the push rod (8) and the top end of the control rod (6), and the cross section of the conductive plate (14) has a circular ring structure.

5. The ultrasonic flow meter transducer according to claim 1, characterized in that: A waterproof cover (16) is fixedly sleeved on the connecting rod (3), and the waterproof cover (16) is made of rubber.

6. The ultrasonic flow meter transducer according to claim 5, characterized in that: The interior of the side wall of the waterproof cover (16) is hollow, and an electrorheological fluid 2 (17) is arranged inside the side wall of the waterproof cover (16).

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