CN213688509U

CN213688509U - Novel ultrasonic flowmeter outer clamp type sensor

Info

Publication number: CN213688509U
Application number: CN202023162812.6U
Authority: CN
Inventors: 涂丽
Original assignee: Guangzhou Guangchuan Electronic Technology Co ltd
Current assignee: Guangzhou Guangchuan Electronic Technology Co ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-07-13
Anticipated expiration: 2030-12-23

Abstract

The utility model relates to an ultrasonic flowmeter sensor field provides a novel ultrasonic flowmeter presss from both sides formula sensor outward, include the casing and install sound wedge and two binding post in the casing, the sound wedge shape is cylindrical, is provided with the signal line that the transducer piece was connected with the transducer piece on the sound wedge, the casing comprises shell bottom and shell body, the shell body comprises lateral wall and cap, be provided with ultrasonic emission-receiving window on the shell bottom, the sound wedge is just right ultrasonic emission-receiving window, binding post sets up in casing one end, fixed mounting on the internal surface of shell bottom, the slope of sound wedge sets up in the casing middle part, the signal line with binding post passes through the connecting wire and connects, binding post with the sound wedge is and arranges side by side in same cavity. The utility model discloses the thickness of ultrasonic flowmeter outer clamp formula sensor has been reduced to reduce the volume, make it more convenient to install on being surveyed the pipeline.

Description

Novel ultrasonic flowmeter outer clamp type sensor

Technical Field

The utility model relates to an ultrasonic flowmeter sensor field, more specifically relates to a novel ultrasonic flowmeter presss from both sides formula sensor outward.

Background

The external clamping type ultrasonic flowmeter is a flowmeter which is very suitable for measuring the whole pipe of a pipeline. Convenient installation and no contact. The device can measure the medium flow of a large pipe diameter and can be used for measuring a medium which is not easy to contact and observe. After the ultrasonic flowmeter is installed, the external clamp type ultrasonic flowmeter can normally work for a long time without maintenance. The external-clamping ultrasonic flowmeter is a non-contact measuring method, a sensor for measuring does not need to be in direct contact with measured liquid, and a measuring structure is not influenced by the viscosity and the conductivity of the measured fluid, so that the flow of various liquids or gases can be measured. The ultrasonic flowmeter external clamp type sensor is a common sensor of an ultrasonic flowmeter, and is used together with a signal processing device to measure the flow velocity of fluid. The basic principle of the ultrasonic sensor is that a pair of ultrasonic sensors are respectively arranged at the upstream and the downstream of a measured fluid, the transmitting surfaces of the two ultrasonic sensors transmit and receive pulse signals in turn relatively, and a signal processing device calculates the flow velocity of the fluid by measuring the difference of the speed of ultrasonic pulse forward and backward flow propagation between known distances.

Ultrasonic flowmeter sensor on the existing market contains casing, potsherd, sound wedge etc to be provided with the wiring chamber, make ultrasonic flowmeter clip type sensor thickness great, therefore the volume is also great, and when measuring pipeline is more little, inconvenient fixed, in addition, the design in wiring chamber needs user's oneself wiring, uses inconveniently, when the operation is improper, can lead to ultrasonic flowmeter sensor's damage.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at overcoming above-mentioned prior art's at least one kind defect (not enough), provide a novel ultrasonic flowmeter outer clamp formula sensor, reduced ultrasonic flowmeter outer clamp formula sensor's thickness to reduce the volume, make it more convenient to install on being surveyed the pipeline.

The utility model provides a technical scheme be, a novel ultrasonic flowmeter presss from both sides formula sensor outward, include the casing and install sound wedge and two binding post in the casing, the sound wedge shape is cylindrical, is provided with the transducer piece on the sound wedge and the signal line of being connected with the transducer piece, the casing comprises shell bottom and shell body, the shell body comprises lateral wall and cap, be provided with ultrasonic emission-receiving window on the shell bottom, the sound wedge is just right ultrasonic emission-receiving window, wherein, binding post sets up in casing one end, fixed mounting on the internal surface of shell bottom, the slope of sound wedge sets up in the casing middle part, the signal line with binding post passes through the connecting wire and connects, binding post with the sound wedge is and arranges side by side in same cavity.

In this scheme, install the sound wedge and binding post in same cavity, reduced ultrasonic flowmeter outer clamp formula sensor's thickness to reduced the volume, made ultrasonic flowmeter outer clamp formula sensor more conveniently fix on the pipeline being surveyed. In addition, a wiring cavity is removed, wiring integration is well connected, a user does not need wiring, damage to the outer-clamping type sensor of the ultrasonic flowmeter due to improper wiring operation is avoided, and the service life of the outer-clamping type sensor of the ultrasonic flowmeter is guaranteed.

Furthermore, be provided with the acoustic wedge on the internal surface of shell bottom and hold the chamber, the acoustic wedge holds the cylindrical cavity that the chamber is the slope, the acoustic wedge is installed on acoustic wedge and is held chamber upper portion, the acoustic wedge holds chamber bottom and is ultrasonic emission-receiving window.

Furthermore, an annular groove is formed in the outer surface of the shell bottom and located between the two wiring terminals, and an annular magnet is installed in the annular groove.

In this scheme, ring magnet's setting, can make things convenient for installer earlier with ultrasonic flowmeter outer clamp formula sensor absorption on the pipeline when the installation, convenient fixed for ultrasonic flowmeter outer clamp formula sensor's installation is more convenient.

Further, be equipped with a screw hole in the middle of the ring channel, the cap internal surface is provided with a screw hole post, the position of screw hole post with the screw hole is corresponding, screw hole and screw hole post are through the screw fixed connection shell body and the shell bottom rather than matching.

In this scheme, set up the screw hole in the middle of the ring channel for the screw of fixed screw hole and screw hole post inlays in the middle of ring magnet and ring channel, need not to set up the overall arrangement space for magnet and fixed screw respectively, has further reduced the volume of ultrasonic flowmeter outer clamp formula sensor.

Furthermore, a fastening groove is formed in the middle of the outer portion of the shell cover. In this scheme, the steel band of being convenient for presss from both sides formula sensor fixed mounting with ultrasonic flowmeter outer with the setting in fastening groove on being surveyed the pipeline.

Further, the thickness H of the shell is 0.8 cm-2.0 cm, and the length L of the shell is 3.5 cm-5.0 cm.

Preferably, the shell has a thickness H of 1.5cm and a length L of 4.4 cm.

Further, the inclined included angle theta of the acoustic wedge is 35-55 degrees.

Preferably, the inclined angle theta of the acoustic wedge is 45 degrees.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses install the sound wedge and binding post in same cavity, reduced the thickness of the outer formula of pressing from both sides sensor of ultrasonic flowmeter, thereby reduced the volume, make the outer formula of pressing from both sides sensor of ultrasonic flowmeter more conveniently fix on the pipeline under test, set up the screw hole in the middle of the ring channel, make the screw of fixed screw hole and screw hole post inlay in the middle of ring magnet and ring channel, need not to set up the overall arrangement space for magnet and fixed screw respectively, further reduced the volume of the outer formula of pressing from both sides sensor of ultrasonic flowmeter. In addition, a wiring cavity is removed, wiring integration is well connected, a user does not need wiring, damage to the outer-clamping type sensor of the ultrasonic flowmeter due to improper wiring operation is avoided, and the service life of the outer-clamping type sensor of the ultrasonic flowmeter is guaranteed.

Drawings

Fig. 1 is an exploded view of the present invention.

Fig. 2 is a structure diagram of the inside of the casing of the present invention.

Fig. 3 is a structural view of the outer surface of the bottom of the case of the present invention.

Fig. 4 is a view showing the external structure of the shell body of the present invention.

Fig. 5 is a structural view of the inside of the shell body of the present invention.

Figure 6 is a schematic diagram of the wedge tilt angle.

Reference numerals: 1. a shell body; 2. a shell bottom; 3. a sound wedge; 4. a sound wedge receiving cavity; 5. a wiring terminal; 6. a screw hole; 7. an annular groove; 8. a screw; 9. a fastening groove; 10. mounting a rail; 11. an ultrasonic wave transmitting-receiving window; 12. and (4) a screw hole column.

Detailed Description

The drawings of the present invention are for illustration purposes only and are not to be construed as limiting the invention. For a better understanding of the following embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Example 1

As shown in fig. 1, the present embodiment provides a novel clip-on ultrasonic flow meter sensor, which comprises a housing, and a sound wedge 3 and two terminals 5 installed in the housing, the acoustic wedge 3 is cylindrical, the acoustic wedge 3 is provided with a transducer piece and a signal wire connected with the transducer piece, the shell body consists of a shell bottom 2 and a shell body 1, the shell body 1 consists of a side wall and a shell cover, as shown in fig. 3, an ultrasonic wave transmitting-receiving window 11 is arranged on the shell bottom 2, the acoustic wedge 3 is opposite to the ultrasonic wave transmitting-receiving window 11, wherein, the wiring terminal 5 is arranged at one end in the shell and is fixedly arranged on the inner surface of the shell bottom 2, the 3 slopes of acoustic wedge set up in casing middle part, the signal line with binding post 5 passes through the connecting wire and connects, binding post 5 with acoustic wedge 3 is arranging side by side in same cavity.

Further, be provided with the acoustic wedge on 2 internal surfaces at the bottom of the shell and hold chamber 4, the acoustic wedge holds chamber 4 and is the cylindrical cavity of slope, acoustic wedge 3 is installed and is held 4 upper portions in the acoustic wedge, the acoustic wedge hold chamber 4 bottom with 2 at the bottom of the shell on same horizontal plane, the acoustic wedge holds 4 bottoms in chamber and is ultrasonic emission-receiving window 11.

As shown in fig. 2, an annular groove 7 is formed in the outer surface of the shell bottom 2, the annular groove 7 is located between the two wiring terminals 5, an annular magnet is installed in the annular groove 7, and during installation, an installer firstly uses the annular magnet to adsorb the ultrasonic flowmeter outer clip type sensor on a measured pipeline and then fixes the ultrasonic flowmeter outer clip type sensor.

In order to further reduce the volume of the clip-on sensor of the ultrasonic flowmeter, as shown in fig. 5, a screw hole pillar 12 is disposed on the inner surface of the housing cover, the position of the screw hole pillar 12 corresponds to the screw hole 6, and the screw hole 6 and the screw hole pillar 12 are fixedly connected to the housing body 1 and the housing bottom 2 through a screw 8 matched with the screw hole.

As shown in fig. 4, the fastening groove 9 is arranged outside the housing cover, the steel belt passes through the fastening groove 9, the ultrasonic flowmeter outer clip type sensor is fixedly mounted on the measured pipeline, the lower edge of the side wall of the housing body is provided with a step, after the housing bottom 2 is fixedly connected with the housing body 1, the housing bottom 2 and the step form a mounting rail 10, the mounting rail 10 can be clamped by using a mounting clip to fix the ultrasonic flowmeter outer clip type sensor, in addition, the mounting clip is more conveniently mounted in the ultrasonic flowmeter outer clip type sensor, and chamfers are arranged on two sides of the outer surface of the housing bottom 2.

In this embodiment, the thickness H of the housing is 0.8cm, and the length L is 5.0 cm.

As shown in fig. 6, in the present embodiment, the inclined angle θ of the acoustic wedge 3 is 35 °.

Example 2

For further reducing the volume of the outer clip type sensor of the ultrasonic flowmeter, a screw hole 6 is arranged in the middle of the annular groove 7, as shown in fig. 5, a screw hole column 12 is arranged on the inner surface of the shell cover, the position of the screw hole column 12 corresponds to the screw hole 6, and the screw hole 6 and the screw hole column 12 are fixedly connected with the shell body 1 and the shell bottom 2 through screws 8 matched with the screw hole column 12.

In this embodiment, the thickness H of the housing is 2.0cm, and the length L is 3.5 cm.

As shown in fig. 6, in the present embodiment, the inclined angle θ of the acoustic wedge 3 is 55 °.

Example 3

In order to further reduce the volume of the clip-on sensor of the ultrasonic flowmeter, a screw hole 6 is arranged in the middle of the annular groove 7, as shown in fig. 5, the position of the screw hole column 12 corresponds to the screw hole 6, and the screw hole 6 and the screw hole column 12 are fixedly connected with the shell body 1 and the shell bottom 2 through screws 8 matched with the screw hole column 12.

In this example, the housing thickness H is 1.5cm and the length L is 4.4 cm.

As shown in fig. 6, in the present embodiment, the inclined angle θ of the acoustic wedge 3 is 45 °.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the technical solutions of the present invention, and are not limitations to the specific embodiments of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A novel ultrasonic flowmeter outer clip type sensor comprises a shell, a sound wedge and two wiring terminals, wherein the sound wedge and the two wiring terminals are arranged in the shell;

the acoustic wedge is cylindrical, and is provided with an energy transducer sheet and a signal line connected with the energy transducer sheet;

the shell body consists of a shell bottom and a shell body, and the shell body consists of a side wall and a shell cover;

an ultrasonic transmitting-receiving window is arranged on the shell bottom, and the acoustic wedge is over against the ultrasonic transmitting-receiving window;

the sound wedge is obliquely arranged in the middle of the shell, and the signal wire is connected with the wiring terminal through a connecting wire; the wiring terminal and the acoustic wedge are arranged in parallel in the same cavity.

2. The clip-on transducer of ultrasonic flowmeter according to claim 1, wherein the inner surface of the case bottom is provided with a sound wedge accommodating cavity, the sound wedge accommodating cavity is an inclined cylindrical cavity, the sound wedge is mounted on the upper portion of the sound wedge accommodating cavity, and the bottom of the sound wedge accommodating cavity is an ultrasonic transmitting-receiving window.

3. The novel clip-on ultrasonic flow meter sensor according to claim 1, wherein the outer surface of the case bottom is provided with an annular groove, the annular groove is located between the two terminals, and an annular magnet is installed in the annular groove.

4. The novel ultrasonic flowmeter outer clip sensor as claimed in claim 3, wherein a screw hole is provided in the middle of the annular groove; the screw hole post is arranged on the inner surface of the shell cover, the position of the screw hole post corresponds to the screw hole, and the screw hole post are fixedly connected with the shell body and the shell bottom through screws matched with the screw hole post.

5. The novel ultrasonic flowmeter outer clip sensor as set forth in claim 1, wherein a fastening groove is formed in the middle of the outer portion of the case cover.

6. The novel ultrasonic flowmeter outer clip type sensor according to any one of claims 1 to 5, wherein the shell thickness H is 0.8cm to 2.0cm, and the length L is 3.5cm to 5.0 cm.

7. The novel ultrasonic flowmeter wafer sensor of claim 6, wherein the housing thickness H is 1.5cm and the length L is 4.4 cm.

8. The novel ultrasonic flowmeter outer clip type sensor according to any one of claims 1 to 5, wherein the inclined angle θ of the acoustic wedge is 35 ° to 55 °.

9. The novel ultrasonic flow meter clip-on sensor of claim 8, wherein the acoustic wedge has an included angle θ of 45 °.