阅读说明：本技术 超声波水表及其声束反射装置 (Ultrasonic water meter and sound beam reflection device thereof ) 是由 毛礼军 毛礼国 于 2019-12-10 设计创作，主要内容包括：本发明公开了一种超声波水表的声束反射装置,涉及超声波水表技术领域,其技术方案要点是：包括导流管,导流管的两端分别设置有声束反射板,每个声束反射板均通过支撑架连接于导流管上,且支撑架远离导流管轴线的一侧到导流管轴线的距离小于或等于导流管的半径设置；两个声束反射板相互靠近的端面为反射面,反射面呈平面并倾斜设置,两个反射面沿导流管径向呈一端相互靠近另一端相互远离设置,且两个反射面与导流管的轴线之间的夹角均为45°,导流管的外侧壁还设置有定位槽。通过将两个声束反射板通过导流管进行固定,安装时将声束反射装置对应嵌入流量管后通过定位螺栓拧紧进行定位即可,从而使得声束反射装置的安装更加方便。(The invention discloses an acoustic beam reflection device of an ultrasonic water meter, which relates to the technical field of ultrasonic water meters, and adopts the technical scheme that: the acoustic beam reflection plates are respectively arranged at two ends of the flow guide pipe, each acoustic beam reflection plate is connected to the flow guide pipe through a support frame, and the distance from one side of the support frame, which is far away from the axis of the flow guide pipe, to the axis of the flow guide pipe is smaller than or equal to the radius of the flow guide pipe; the end faces, close to each other, of the two sound beam reflecting plates are reflecting faces, the reflecting faces are arranged in a plane and inclined mode, one end of each reflecting face is radially close to the other end of each reflecting face along the flow guide pipe, the other end of each reflecting face is far away from the other end of each reflecting face, included angles between the two reflecting faces and the axis of the flow guide pipe are 45 degrees, and positioning grooves are further formed in the outer side wall of the flow. Through fixing two sound beam reflecting plates through the honeycomb duct, the sound beam reflecting device is correspondingly embedded into the flow tube during installation and then is screwed up through the positioning bolt for positioning, so that the sound beam reflecting device is more convenient to install.)

1. An acoustic beam reflection device of an ultrasonic water meter is characterized in that: the acoustic beam acoustic reflection plate type honeycomb duct comprises a honeycomb duct (1), wherein acoustic beam reflection plates (5) are respectively arranged at two ends of the honeycomb duct (1), each acoustic beam reflection plate (5) is connected to the honeycomb duct (1) through a support frame (6), and the distance from one side, far away from the axis of the honeycomb duct (1), of each support frame (6) to the axis of the honeycomb duct (1) is smaller than or equal to the radius of the honeycomb duct (1); the terminal surface that two acoustic beam reflecting plates (5) are close to each other is plane (51), plane and slope setting are followed in plane (51), and two plane (51) radially are one end and are close to each other the other end and keep away from the setting each other along honeycomb duct (1), and two plane (51) with contained angle between the axis of honeycomb duct (1) is 45, the lateral wall of honeycomb duct (1) still is provided with constant head tank (2).

2. The acoustic beam reflecting device of an ultrasonic water meter according to claim 1, wherein: the lateral wall of honeycomb duct (1) still inlays along the axial and is equipped with rubber seal ring (3), and rubber seal ring (3) are provided with two and are located constant head tank (2) respectively along honeycomb duct (1) axial both sides.

3. The acoustic beam reflecting device of an ultrasonic water meter according to claim 1, wherein: the inside walls of the two axial ends of the flow guide pipe (1) are provided with chamfers (4).

4. The acoustic beam reflecting device of an ultrasonic water meter according to claim 1, wherein: the reflecting surface (51) is arranged in an elliptical shape, and the long axis of the reflecting surface (51) is arranged along the direction of the inclined surface of the reflecting surface (51).

5. The acoustic beam reflecting device of an ultrasonic water meter according to claim 1, wherein: support frame (6) include that two symmetry distribute in connecting strip (61) of acoustic beam reflecting plate (5) both sides, fixed connection keep away from mounting bar (62) of acoustic beam reflecting plate (5) one end in the connecting rod, connecting strip (61) set up along the radial of honeycomb duct (1), mounting bar (62) are on a parallel with the axis setting of stand pipe.

6. The acoustic beam reflecting device of an ultrasonic water meter according to claim 5, wherein: two mounting grooves (7) have all been seted up to the lateral wall at honeycomb duct (1) axial both ends, mounting groove (7) are seted up along honeycomb duct (1) axial, and two mounting bars (62) that support frame (6) are corresponding in two mounting grooves (7) set up, mounting bar (62) correspond the embedding welded fastening behind mounting groove (7).

7. The acoustic beam reflecting device of an ultrasonic water meter according to claim 5, wherein: the acoustic beam reflection plate (5) and the support frame (6) are integrally arranged, the acoustic beam reflection plate (5) and the support frame (6) are made of stainless steel, and the acoustic beam reflection plate (5) and the support frame (6) are punched through the stainless steel plate and then are inclined through twisting the acoustic beam reflection plate (5).

8. The acoustic beam reflecting device of an ultrasonic water meter according to claim 5, wherein: the honeycomb duct (1) comprises a supporting pipe (11) and mounting pipes (12) which are coaxially fixed at two axial ends of the supporting pipe (11) respectively, the inner diameters of the supporting pipe (11) and the mounting pipes (12) are equal, and the outer diameter of the supporting pipe (11) is larger than that of the mounting pipes (12); each mounting pipe (12) is provided with two sliding grooves (8) for the mounting strips (62) to slide along the axial outer side wall, and one end, far away from the supporting pipe (11), of each sliding groove (8) penetrates through the mounting pipe (12); every coaxial rotation has rotating ring (9) on mounting tube (12), the external diameter of rotating ring (9) is less than or equal to the external diameter setting of stay tube (11), stay tube (11) one end lateral wall is kept away from in mounting tube (12) still is provided with spacing ring (10), the external diameter of spacing ring (10) is less than or equal to the external diameter setting of stay tube (11), slip hole (13) that two and slip groove (8) correspond and supply mounting bar (62) to pass are seted up in spacing ring (10), rotating ring (9) inside wall is provided with screw thread section (14), two mounting bar (62) of support frame (6) deviate from one side each other and screw thread section (14) screw-thread fit sets up.

9. The acoustic beam reflecting device of an ultrasonic water meter according to claim 5, wherein: the outer diameter of the limiting ring (10) is smaller than that of the rotating ring (9), a plurality of force applying grooves (15) are uniformly distributed in the circumferential direction at one end, far away from the supporting pipe (11), of the rotating ring (9), and the force applying grooves (15) are located on the outer side of the limiting ring (10).

10. An ultrasonic water meter, characterized in that: an acoustic beam reflecting device comprising an ultrasonic water meter according to any one of claims 1 to 9.

Technical Field

The invention relates to the technical field of ultrasonic water meters, in particular to an ultrasonic water meter and an acoustic beam reflection device thereof.

Background

The ultrasonic water meter is a novel water meter which further calculates the flow of the outlet water by detecting the time difference generated by the change of the speed when the ultrasonic sound beam propagates in the downstream and the upstream in the water and analyzing and processing the flow to obtain the flow rate of the outlet water.

For example, the chinese patent invention with the patent number CN103940480B discloses a water meter, which includes a meter head, a flow tube and two ultrasonic transducers, wherein the flow tube is provided with two transducing holes, the two transducing holes are both provided with the ultrasonic transducers, the meter head is mounted on the flow tube, the two ultrasonic transducers are both connected with the meter head, the flow tube is provided with two shunt reflectors, and the two shunt reflectors and the two ultrasonic transducers are respectively disposed correspondingly. The shunting reflector comprises a shunting plate, one end of the shunting plate is obliquely connected with the sound beam reflecting plate, the ultrasonic transducer corresponds to the sound beam reflecting plate, and sound beams emitted by the ultrasonic transducer are reflected on the sound beam reflecting plate.

In the above, the two shunt reflectors form a part of the sound beam reflection device for reflecting the ultrasonic sound beam, and during installation, the two shunt reflectors are respectively aligned at two ends and then inserted and fixed to form a reflection loop, but each installation requires that two ends are aligned with the flow tube to be inserted and the sound beam reflection plate and the ultrasonic transducer are well corresponding, and meanwhile, the two sound beam reflection plates are correspondingly arranged, so that the installation is troublesome overall and needs to be improved.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides the sound beam reflecting device of the ultrasonic water meter, which has the advantage of more convenient installation.

In order to achieve the purpose, the invention provides the following technical scheme:

a sound beam reflection device of an ultrasonic water meter comprises a flow guide pipe, wherein sound beam reflection plates are respectively arranged at two ends of the flow guide pipe, each sound beam reflection plate is connected to the flow guide pipe through a support frame, and the distance from one side of the support frame, which is far away from the axis of the flow guide pipe, to the axis of the flow guide pipe is smaller than or equal to the radius of the flow guide pipe; the terminal surface that two sound beam reflecting plates are close to each other is the plane, and the plane is personally submitted in the plane and the slope sets up, and two planes are radially to be one end and are close to each other the other end and keep away from the setting each other along the honeycomb duct, and two planes with contained angle between the axis of honeycomb duct is 45, the lateral wall of honeycomb duct still is provided with the constant head tank.

Through the technical scheme, the sound beam reflection device is adopted, after the sound beam reflection device is coaxially inserted into the flow guide pipe, the outer peripheral surface of the flow guide pipe is attached to the inner side wall of the flow tube, the reflection surface of the sound beam reflection plate is arranged corresponding to the transduction hole, and then the positioning bolt is screwed into the flow guide pipe, so that the lower end of the positioning bolt is correspondingly embedded into the positioning groove for positioning, and the sound beam reflection device is fixed. The two sound beam reflecting plates are fixed through the flow guide pipe, so that the sound beam reflecting device is more convenient to install.

Furthermore, the lateral wall of honeycomb duct still inlays along the axial and is equipped with rubber seal ring, and rubber seal ring is provided with two and is located the constant head tank respectively and follows honeycomb duct axial both sides.

Through above-mentioned technical scheme, set up rubber seal ring, in acoustic beam reflex assembly installation and flow tube, rubber seal ring can support tightly and seal the constant head tank both sides in the flow tube inside wall to reduced the condition that the interior liquid of flow tube permeates behind the constant head tank and spill from the screw hole of flow tube in the use, it is better to drip the leakproofness of whole use.

Furthermore, the inside walls at the two axial ends of the flow guide pipe are provided with chamfers.

Through above-mentioned technical scheme, the setting of chamfer, when water need enter into the water conservancy diversion intraductal after passing through the acoustic beam reflecting plate, the chamfer can lead rivers for rivers are more stable in the flow pipe.

Furthermore, the reflecting surface is in an elliptical shape, and the long axis of the reflecting surface is arranged along the direction of the inclined surface of the reflecting surface.

Through above-mentioned technical scheme, the reflection scope of plane of reflection can be ensured in the oval-shaped setting, has also reduced the area of acoustic beam reflecting plate simultaneously, has reduced the blockking of acoustic beam reflecting plate to rivers for the circulation of rivers is more smooth and easy.

Further, the support frame includes that two symmetric distributions are in the connecting strip of acoustic beam reflecting plate both sides, fixed connection keeps away from the mounting bar of acoustic beam reflecting plate one end in the connecting rod, the connecting strip sets up along the radial of honeycomb duct, the mounting bar is on a parallel with the axis setting of stand pipe.

Through above-mentioned technical scheme, fix the acoustic beam reflecting plate through connecting strip and mounting bar, the mounting bar is close to the terminal surface of honeycomb duct axis and is greater than the hole radius setting of honeycomb duct to the distance of honeycomb duct axis to make the mounting bar can not form the interference to water conservancy diversion hole, thereby make water through more smooth and easy.

Furthermore, two mounting grooves are formed in the outer side walls of the two axial ends of the flow guide pipe, the mounting grooves are formed in the axial direction of the flow guide pipe, the two mounting grooves correspond to the two mounting strips of the support frame, and the mounting strips are correspondingly embedded into the mounting grooves and then welded and fixed.

Through above-mentioned technical scheme, set up the mounting groove, when the mounting bar need be connected with the honeycomb duct and make the acoustic beam reflecting plate be fixed in on the honeycomb duct, can fix a position in the mounting groove with the mounting bar correspondence embedding, then the rethread welding is fixed to it is more accurate to make the position location when the acoustic beam reflecting plate is fixed.

Furthermore, the sound beam reflecting plate and the support frame are integrally arranged, the sound beam reflecting plate and the support frame are made of stainless steel, and the sound beam reflecting plate and the support frame are punched by the stainless steel plate and then are inclined by twisting the sound beam reflecting plate.

Through the technical scheme, the sound beam reflecting plate and the supporting frame are integrally arranged, the sound beam reflecting plate and the supporting frame can be integrally punched and formed firstly, and then the sound beam reflecting plate is twisted for 45 degrees for forming, so that the sound beam reflecting plate and the supporting frame are more convenient to process.

Furthermore, the flow guide pipe comprises a support pipe and mounting pipes which are coaxially fixed at two axial ends of the support pipe respectively, the inner diameters of the support pipe and the mounting pipes are equal, and the outer diameter of the support pipe is larger than that of the mounting pipes; two sliding grooves for sliding the mounting bars are formed in the outer side wall of each mounting pipe along the axial direction, and one end, far away from the supporting pipe, of each sliding groove penetrates through the mounting pipe; every coaxial rotation has the rotating ring on the installation pipe, the external diameter of rotating ring is less than or equal to the external diameter setting of stay tube, the installation pipe is kept away from stay tube one end lateral wall and still is provided with the spacing ring, the external diameter of spacing ring is less than or equal to the external diameter setting of stay tube, the spacing ring is seted up two and is slided the hole that slides that the groove corresponds and supply the mounting bar to pass that slides, the rotating ring inside wall is provided with the screw thread section, two mounting bars of support frame deviate from one side each other and screw thread section screw-thread fit sets up.

Through the technical scheme, when the position of the acoustic beam reflecting plate needs to be adjusted, the mounting bar slides along the sliding groove by rotating the rotating ring, so that the position of the acoustic beam reflecting plate can be finely adjusted according to actual use, and the whole use is more convenient.

Furthermore, the outer diameter of the limiting ring is smaller than that of the rotating ring, a plurality of force applying grooves are uniformly distributed in the circumferential direction at one end, far away from the supporting tube, of the rotating ring, and the force applying grooves are located on the outer side of the limiting ring.

Through the technical scheme, the force applying groove is formed, when the position of the acoustic beam reflecting plate is required to be adjusted by rotating the limiting ring, the corresponding inserted rod is inserted into the force applying hole to drive the rotating ring to rotate, so that the acoustic beam reflecting device can be firstly installed in the flow tube, and then the position of the acoustic beam reflecting plate is finely adjusted according to the position of the transduction hole of the flow tube, and the installation position of the acoustic beam reflecting plate is more accurate.

An ultrasonic water meter comprises the sound beam reflection device of any ultrasonic water meter.

Compared with the prior art, the invention has the beneficial effects that:

(1) the two sound beam reflecting plates are fixed through the flow guide pipe, and the sound beam reflecting device is correspondingly embedded into the flow pipe and then is positioned by screwing the positioning bolt during installation, so that the sound beam reflecting device is more convenient to install;

(2) by arranging the mounting groove, the mounting strip is correspondingly embedded into the mounting groove for positioning, and then the mounting strip is fixed by welding, so that the position positioning is more accurate when the acoustic beam reflecting plate is fixed;

(3) the acoustic beam reflecting plate and the supporting frame are integrally arranged, so that the acoustic beam reflecting plate and the supporting frame are more convenient to process;

(4) through setting up rotating ring and putting forth effort the groove, can pack into the flow tube earlier acoustic beam reflex mount, then finely tune the position of acoustic beam reflecting plate according to the position of the transducing hole of flow tube for the mounted position of acoustic beam reflecting plate is more accurate.

Drawings

FIG. 1 is a general schematic view of a first embodiment;

FIG. 2 is a schematic diagram of a partial explosion according to the second embodiment;

fig. 3 is a schematic cross-sectional view of the third embodiment.

Reference numerals: 1. a flow guide pipe; 11. supporting a tube; 12. installing a pipe; 2. positioning a groove; 3. a rubber seal ring; 4. chamfering; 5. an acoustic beam reflecting plate; 51. a reflective surface; 6. a support frame; 61. a connecting strip; 62. mounting a bar; 7. mounting grooves; 8. a sliding groove; 9. a rotating ring; 10. a limiting ring; 13. a sliding hole; 14. a threaded segment; 15. a force application groove; 16. a flow tube; 17. a transducing orifice; 18. a threaded hole; 19. and (6) positioning the bolt.

Detailed Description

The invention is described in detail below with reference to the figures and examples.