CN221425737U - Integral ultrasonic water meter measuring tube structure - Google Patents

Abstract

The utility model discloses an integral ultrasonic water meter measuring tube structure which comprises an ultrasonic tube section and a measuring tube, wherein the measuring tube is sleeved in the ultrasonic tube section, a first transducer mounting hole and a second transducer mounting hole are formed in the ultrasonic tube section at intervals, two first ribs are symmetrically arranged at one end of the measuring tube, a first reflector is obliquely arranged between the two first ribs, two second ribs are symmetrically arranged at the other end of the measuring tube, a second reflector is obliquely arranged between the two second ribs, the first reflector is aligned with the first transducer mounting hole, and the second reflector is aligned with the second transducer mounting hole so as to detect the flow velocity of the ultrasonic water meter. The measuring tube structure of the integral ultrasonic water meter ensures the accuracy and consistency of reflection sound paths among transducers and improves the measuring precision of the ultrasonic water meter.

Description

Integral ultrasonic water meter measuring tube structure

Technical Field

The utility model belongs to the technical field of ultrasonic measurement, and particularly relates to a measuring tube structure of an integral ultrasonic water meter.

Background

In the field of water meters, ultrasonic water meters have been widely used in the water meter industry by virtue of the characteristics of high precision, good stability, no transmission structure and the like. The ultrasonic water meter pipe section is used as a core component of the ultrasonic water meter, and the structural design of the ultrasonic water meter pipe section directly influences performance indexes such as flow stability, flow precision and the like of the whole meter.

The existing small-pipe-diameter (DN 15-DN 40) ultrasonic water meter adopts a flow velocity measurement method based on a time difference method, a U-shaped reflection is formed between a pair of ultrasonic transducers by utilizing a two-sided reflector, and flow velocity information is reversely pushed by calculating forward and reverse travel time difference. This is achieved by ensuring that the mirror is accurately mounted in its design position. However, in the traditional ultrasonic water meter, the reflectors are required to be separated and are respectively arranged in the inner cavity of the water meter through the two sides of the inlet and the outlet of the water meter, so that the deviation of the installation angle is easy to cause in the process, the ultrasonic sound path is changed, and the measuring precision of the water meter is low.

Therefore, it is needed to design an integral ultrasonic water meter measuring tube structure to solve the problem that the above-mentioned mirror is installed with angular deviation, resulting in low measuring accuracy of the water meter.

Disclosure of utility model

In order to solve the technical problem that the measuring precision of the water meter is low due to the fact that the angle deviation exists in the installation of the reflecting mirror in the background art, the measuring tube structure of the integral ultrasonic water meter is provided, and the problem is solved.

In order to achieve the above purpose, the specific technical scheme of the measuring tube structure of the integral ultrasonic water meter is as follows:

The utility model provides an integral ultrasonic water meter survey buret structure, including ultrasonic wave pipeline section and survey buret, the survey pipe box is established in the ultrasonic wave pipeline section, and the interval is equipped with first transducer mounting hole and second transducer mounting hole on the ultrasonic wave pipeline section, and survey buret one end symmetry is provided with two first ribs, and the slope is provided with first speculum between two first ribs, and survey buret other end symmetry is provided with two second ribs, and the slope is provided with the second speculum between two second ribs, and first speculum aligns with first transducer mounting hole, and the second speculum aligns with second transducer mounting hole to detect ultrasonic water meter's velocity of flow.

Further, two first connecting frames are symmetrically arranged on the first reflecting mirror, two second connecting frames are symmetrically arranged on the second reflecting mirror, the first connecting frames are connected with the first ribs in one-to-one correspondence, and the second connecting frames are connected with the second ribs in one-to-one correspondence.

Further, the first mirror and the second mirror are placed in an injection mold, and are integrally injection-molded with the measuring tube when the measuring tube is injection-molded, so that the first mirror and the second mirror are fixed on the measuring tube.

Further, the measuring tube comprises a first tube section and a second tube section, the first reflector and the first tube section are integrally injection molded once, the second reflector and the second tube section are integrally injection molded once, the first tube section and the second tube section are subjected to secondary injection molding after being butted, a third tube section is injection molded on the outer peripheral surfaces of the first tube section and the second tube section, and the third tube section is fixedly connected with the first tube section and the second tube section.

Further, the measuring tube further comprises a fourth tube segment, the fourth tube segment is formed by one-time injection molding, one end of the fourth tube segment is integrally injection molded with the fifth tube segment and the first reflecting mirror in a secondary mode, and the other end of the fourth tube segment is integrally injection molded with the sixth tube segment and the second reflecting mirror in a secondary mode.

Further, the fourth pipe section is formed by one-time injection molding, the outer peripheral surface is provided with a first groove and a second groove, the second injection molding inner wall of the fifth pipe section is provided with a first protrusion, the second injection molding inner wall of the sixth pipe section is provided with a second protrusion, the first protrusion is matched with the first groove, and the second protrusion is matched with the second groove, so that the fourth pipe section is fixedly connected with the fifth pipe section and the sixth pipe section.

Further, the first reflecting mirror and the second reflecting mirror are detachably connected with the measuring tube after the measuring tube is injection molded.

Further, the first polygonal holes are obliquely formed in the two first ribs, the two first connecting frames are polygonal frames, and the first connecting frames are in one-to-one correspondence with the first polygonal holes in an inserting mode so that the first reflecting mirror is obliquely arranged between the two first ribs.

Further, second polygonal holes are obliquely formed in the two second ribs, the two second connecting frames are polygonal frames, and the second connecting frames are in one-to-one correspondence with the second polygonal holes in an inserting mode so that the second reflecting mirror is obliquely arranged between the two second ribs.

Further, one side of two first ribs close to the first reflector is provided with a first inclined surface, the first connecting frame slides along the first inclined surface so as to limit the first connecting frame in the first polygonal hole, one side of two second ribs close to the second reflector is provided with a second inclined surface, and the second connecting frame slides along the second inclined surface so as to limit the second connecting frame in the second polygonal hole.

The measuring tube structure of the integral ultrasonic water meter has the following advantages:

Through be provided with two first ribs at survey pipe one end symmetry, the slope is provided with first speculum between two first ribs, survey pipe other end symmetry is provided with two second ribs, the slope is provided with the second speculum between two second ribs, first speculum aligns with first transducer mounting hole, the second speculum aligns with the second transducer mounting hole, in order to detect the velocity of flow of ultrasonic wave water gauge, guaranteed the accuracy and the uniformity of reflection sound journey between the transducer, improved ultrasonic wave water gauge's measurement accuracy.

Through being connected survey buret and first speculum and second speculum integrated into one piece to the mounted position of accurate control first speculum and second speculum has guaranteed the accuracy and the uniformity of the reflection sound journey between the transducer, has improved the measurement accuracy of ultrasonic water gauge.

Drawings

FIG. 1 is a schematic cross-sectional view of a measuring tube structure of an integral ultrasonic water meter according to the present utility model;

FIG. 2 is a schematic view of the structure of the measuring tube of the present utility model;

FIG. 3 is a schematic diagram of a first embodiment of the present utility model;

FIG. 4 is a schematic diagram of an explosion structure according to a first embodiment of the present utility model;

FIG. 5 is a schematic cross-sectional view of a first embodiment of the present utility model;

FIG. 6 is a schematic structural diagram of a second embodiment of the present utility model;

FIG. 7 is a schematic diagram of an explosion structure of a second embodiment of the present utility model;

FIG. 8 is a schematic cross-sectional view of a second embodiment of the present utility model;

FIG. 9 is a schematic diagram of a third embodiment of the present utility model;

FIG. 10 is a schematic view showing the structure of a measuring tube in a third embodiment of the present utility model;

fig. 11 is a schematic structural view of a first mirror according to the present utility model.

The figure indicates:

1. An ultrasonic tube section; 11. a first transducer mounting hole; 12. a second transducer mounting hole; 2. a measuring tube; 21. a first rib; 211. a first polygonal hole; 212. a first inclined surface; 22. second ribs; 221. a second polygonal hole; 222. a second inclined surface; 23. a first pipe section; 231. a first connection portion; 24. a second pipe section; 241. a second connecting portion; 25. a third pipe section; 26. a fourth pipe section; 261. a third connecting portion; 2611. a first groove; 262. a fourth connecting portion; 2621. a second groove; 27. a fifth pipe section; 271. a first protrusion; 28. a sixth pipe section; 281. a second protrusion; 3. a first mirror; 31. a first connection frame; 4. a second mirror; 41. and a second connecting frame.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.

Those skilled in the art will appreciate that while some embodiments herein include some features but not others included in other embodiments, combinations of features of different embodiments are meant to be within the scope of the utility model and form different embodiments. For example, in the claims, any of the claimed embodiments may be used in any combination.

The structure of the measuring tube of the integrated ultrasonic water meter according to the present utility model will be described with reference to fig. 1 to 11.

The existing small-pipe-diameter (DN 15-DN 40) ultrasonic water meter adopts a flow velocity measurement method based on a time difference method, a U-shaped reflection is formed between a pair of ultrasonic transducers by utilizing a two-sided reflector, and flow velocity information is reversely pushed by calculating forward and reverse travel time difference. This is achieved by ensuring that the mirror is accurately mounted in a specific position of the measuring tube 2. However, in the traditional ultrasonic water meter, the reflecting mirrors are required to be installed separately, and the two sides of the inlet and the outlet of the water meter are respectively installed in the inner cavity of the water meter, so that the deviation of the installation angle is easy to cause in the process, thereby causing the change of the ultrasonic sound path and the measurement error of the water meter. Therefore, it is needed to design an integral ultrasonic water meter measuring tube structure to solve the problem that the above-mentioned mirror is installed with angular deviation, resulting in low measuring accuracy of the water meter.

As shown in fig. 1 and 2, the measuring tube structure of the integral ultrasonic water meter in the utility model comprises an ultrasonic tube section 1 and a measuring tube 2, wherein the measuring tube 2 is sleeved in the ultrasonic tube section 1, a first transducer mounting hole 11 and a second transducer mounting hole 12 are arranged on the ultrasonic tube section 1 at intervals, two first ribs 21 are symmetrically arranged at one end of the measuring tube 2, a first reflecting mirror 3 is obliquely arranged between the two first ribs 21, two second ribs 22 are symmetrically arranged at the other end of the measuring tube 2, a second reflecting mirror 4 is obliquely arranged between the two second ribs 22, the first reflecting mirror 3 is aligned with the first transducer mounting hole 11, and the second reflecting mirror 4 is aligned with the second transducer mounting hole 12 so as to detect the flow rate of the ultrasonic water meter. In the present embodiment, a first ultrasonic transducer is provided at the first transducer mounting hole 11, a second ultrasonic transducer is provided at the second transducer mounting hole 12,

Through be provided with two first ribs 21 at survey pipe 2 one end symmetry, the slope is provided with first reflector 3 between two first ribs 21, survey pipe 2 other end symmetry is provided with two second ribs 22, the slope is provided with second reflector 4 between two second ribs 22, first reflector 3 aligns with first transducer mounting hole 11, second reflector 4 aligns with second transducer mounting hole 12, in order to detect the velocity of flow of ultrasonic water meter, the accuracy and the uniformity of reflection sound journey between the transducer have been guaranteed, the measurement accuracy of ultrasonic water meter has been improved.

Specifically, as shown in fig. 1 and 2, two first connecting frames 31 are symmetrically arranged on the first reflecting mirror 3, two second connecting frames 41 are symmetrically arranged on the second reflecting mirror 4, the first connecting frames 31 are connected with the first ribs 21 in a one-to-one correspondence manner, and the second connecting frames 41 are connected with the second ribs 22 in a one-to-one correspondence manner. By arranging the first connecting frame 31 and the second connecting frame 41, the first reflecting mirror 3 and the second reflecting mirror 4 are fixed on the measuring tube 2, the first reflecting mirror 3 and the second reflecting mirror 4 are accurately installed, the installation accuracy is high, and the measurement accuracy of the ultrasonic water meter is improved.

Further, the end of the first connecting frame 31 far away from the first reflecting mirror 3 and the end of the second connecting frame 41 far away from the second reflecting mirror 4 are both provided with an encapsulation structure to fix the first reflecting mirror 3 on the first rib 21 and the second reflecting mirror 4 on the second rib 22.

Example 1

Further, as shown in fig. 3 to 5, the first mirror 3 and the second mirror 4 are placed in an injection mold, and are injection molded integrally with the measurement pipe 2 at the time of injection molding of the measurement pipe 2 to fix the first mirror 3 and the second mirror 4 on the measurement pipe 2. Through being connected the survey pipe 2 with first speculum 3 and the integrated into one piece of second speculum 4 to the mounted position of accurate control first speculum 3 and second speculum 4 has guaranteed the accuracy and the uniformity of the reflection sound journey between the transducer, has improved the measurement accuracy of ultrasonic water gauge.

Specifically, as shown in fig. 3 to 5, the measuring tube 2 includes a first tube segment 23 and a second tube segment 24, the first reflecting mirror 3 and the first tube segment 23 are integrally injection-molded once, the second reflecting mirror 4 and the second tube segment 24 are integrally injection-molded once, the first reflecting mirror 3 is placed in a mold before the first tube segment 23 is injection-molded once, and the first tube segment 23 is injection-molded once while the first reflecting mirror 3 is fixed on the first tube segment 23. Before the second tube section 24 is injection molded once, the second reflecting mirror 4 is placed in a mold, and the second tube section 24 is injection molded once, while the second reflecting mirror 4 is fixed to the second tube section 24. The first pipe section 23 is integrally connected with the first reflecting mirror 3 to form a whole after injection molding, the second pipe section 24 is integrally connected with the second reflecting mirror 4 to form a whole after injection molding, after injection molding is completed once, the first pipe section 23 and the first reflecting mirror 3 are replaced in a mold, the second pipe section 24 and the second reflecting mirror 4 are replaced in the mold, one end of the first pipe section 23 far away from the first reflecting mirror 3 is abutted with one end of the second pipe section 24 far away from the second reflecting mirror 4, then secondary injection molding is carried out on the outer peripheral surfaces of the first pipe section 23 and the second pipe section 24, a third pipe section 25 is formed on the outer peripheral surfaces of the first pipe section 23 and the second pipe section 24, the third pipe section 25 and the first pipe section 23 and the second pipe section 24 are integrally formed through secondary injection molding, the first pipe section 23 and the second pipe section 24 are fixedly connected together through the third pipe section 25, and the second reflecting mirror 4 is accurately mounted on the second pipe section 24.

Further, as shown in fig. 3 to 5, two first ribs 21 are injection molded on the first pipe section 23 after one injection molding, and after one injection molding is completed, the first connecting frame 31 on the first reflecting mirror 3 is fixed on the first ribs 21, so that the first reflecting mirror 3 is fixed on the first pipe section 23. Two second ribs 22 are molded on the second pipe section 24 after primary injection molding, and after primary injection molding, the second connecting frame 41 on the second reflecting mirror 4 is fixed on the second ribs 22, so that the second reflecting mirror 4 is fixed on the second pipe section 24.

Further, as shown in fig. 3 to 5, the first pipe section 23 after one injection molding is injection-molded with the first connecting portion 231, the second pipe section 24 after one injection molding is injection-molded with the second connecting portion 241, the first pipe section 23 and the second pipe section 24 are replaced in the mold, the first connecting portion 231 and the second connecting portion 241 are butted, the third pipe section 25 is injection-molded on the outer peripheral surfaces of the first connecting portion 231 and the second connecting portion 241, the first connecting portion 231 and the second connecting portion 241 are connected through the third pipe section 25, the first pipe section 23 and the second pipe section 24 are connected and fixed through the third pipe section 25, the outer diameter of the first pipe section 23, the outer diameter of the second pipe section 24 and the outer diameter of the third pipe section 25 are the same, and the whole of the first pipe section 23, the second pipe section 24 and the third pipe section 25 after two injection molding is conveniently placed in the ultrasonic pipe section 1 in a sliding manner. The first reflecting mirror 3 is precisely fixed on the first pipe section 23 through injection molding, the second reflecting mirror 4 is precisely fixed on the second pipe section 24, the installation accuracy is high, and the measurement accuracy of the ultrasonic water meter is improved.

Example two

Further, as shown in fig. 6 to 8, the first mirror 3 and the second mirror 4 are placed in an injection mold, and are injection molded integrally with the measurement pipe 2 at the time of injection molding of the measurement pipe 2 to fix the first mirror 3 and the second mirror 4 on the measurement pipe 2. Through being connected the survey pipe 2 with first speculum 3 and the integrated into one piece of second speculum 4 to the mounted position of accurate control first speculum 3 and second speculum 4 has guaranteed the accuracy and the uniformity of the reflection sound journey between the transducer, has improved the measurement accuracy of ultrasonic water gauge.

Further, as shown in fig. 6 to 8, the measuring tube 2 further includes a fourth tube segment 26, the fourth tube segment 26 is injection molded once, one end of the fourth tube segment 26 is injection molded twice integrally with the fifth tube segment 27 and the first reflecting mirror 3, and the other end of the fourth tube segment 26 is injection molded twice integrally with the sixth tube segment 28 and the second reflecting mirror 4. Specifically, after the fourth pipe section 26 is subjected to one-time injection molding, the fourth pipe section 26 is replaced in a mold, meanwhile, the first reflecting mirror 3 and the second reflecting mirror are respectively placed at two ends of the fourth pipe section 26, two ends of the fourth pipe section 26 are subjected to secondary injection molding, after the secondary injection molding, the fifth pipe section 27 and the sixth pipe section 28 are formed by injection molding at two ends of the fourth pipe section 26, in the secondary injection molding process, the first reflecting mirror 3 is fixed on the fifth pipe section 27 through injection molding, the second reflecting mirror 4 is fixed in the sixth pipe section 28 through injection molding, and after the secondary injection molding is completed, the integral connection fixation of the fourth pipe section 26, the fifth pipe section 27, the sixth pipe section 28, the first reflecting mirror 3 and the second reflecting mirror 4 is realized, and the installation precision of the first reflecting mirror 3 on the fifth pipe section 27 is improved, and the installation precision of the second reflecting mirror 4 on the sixth pipe section 28 is improved.

Further, as shown in fig. 6 to 8, the fourth pipe section 26 is injection-molded once, the outer circumferential surface is formed with the first groove 2611 and the second groove 2621, the inner wall of the fifth pipe section 27 is injection-molded twice is formed with the first protrusion 271, the inner wall of the sixth pipe section 28 is injection-molded twice is formed with the second protrusion 281, the first protrusion 271 is mated with the first groove 2611, the second protrusion 281 is mated with the second groove 2621 after the injection molding is completed, and the fourth pipe section 26 is fixedly connected with the fifth pipe section 27 and the sixth pipe section 28 by the first protrusion 271 being mated with the first groove 2611 and the second protrusion 281 being mated with the second groove 2621.

Further, as shown in fig. 6 to 8, two first ribs 21 are injection molded on the fifth pipe section 27 after the secondary injection molding, and after the secondary injection molding is completed, the first connecting frame 31 on the first mirror 3 is fixed on the first ribs 21, so that the first mirror 3 is fixed on the fifth pipe section 27. Two second ribs 22 are molded on the sixth pipe section 28 after the secondary injection molding, and after the secondary injection molding is completed, the second connecting frame 41 on the second reflecting mirror 4 is fixed on the second ribs 22, so that the second reflecting mirror 4 is fixed on the sixth pipe section 28.

Further, as shown in fig. 6 to 8, the third connecting portion 261 and the fourth connecting portion 262 are respectively injection-molded at both ends of the first injection-molded fourth pipe section 26, the first groove 2611 is provided on the third connecting portion 261, the second groove 2621 is provided on the fourth connecting portion 262, the first injection-molded fourth pipe section 26 is replaced in the mold, after the second injection molding, the first protrusion 271 is formed on the inner wall of the fifth pipe section 27, the second protrusion 281 is formed on the inner wall of the sixth pipe section 28, the first protrusion 271 is matched with the first groove 2611, the second protrusion 281 is matched with the second groove 2621, the outer diameter of the fourth pipe section 26, the outer diameter of the fifth pipe section 27 and the outer diameter of the sixth pipe section 28 are the same, so that the fourth pipe section 26, the fifth pipe section 27 and the sixth pipe section 28 after the second injection molding are integrally and slidably placed in the ultrasonic pipe section 1. The first reflecting mirror 3 is precisely fixed on the fifth pipe section 27 through injection molding, the second reflecting mirror 4 is precisely fixed on the sixth pipe section 28, the installation accuracy is high, and the measurement accuracy of the ultrasonic water meter is improved.

Example III

Further, as shown in fig. 9 to 11, the first reflecting mirror 3 and the second reflecting mirror 4 are detachably connected to the measuring tube 2 after the injection molding of the measuring tube 2.

Further, as shown in fig. 9 to 11, the measuring tube 2 is formed by injection molding once, two first ribs 21 are symmetrically disposed at one end of the measuring tube 2 after the injection molding once, two second ribs 22 are symmetrically disposed at the other end of the measuring tube 2, first polygonal holes 211 are obliquely disposed on the two first ribs 21, the two first connecting frames 31 are polygonal frames, and the first connecting frames 31 are inserted into the first polygonal holes 211 in a one-to-one correspondence manner so as to obliquely dispose the first reflecting mirror 3 between the two first ribs 21. The second ribs 22 are obliquely provided with second polygonal holes 221, the second connecting frames 41 are polygonal frames, and the second connecting frames 41 are spliced with the second polygonal holes 221 in a one-to-one correspondence manner so as to obliquely arrange the second reflecting mirror 4 between the two second ribs 22.

By providing the first polygonal hole 211, the rotation of the first connection frame 31 with respect to the first polygonal hole 211 can be limited, so that the first mirror 3 is fixedly provided on the first rib 21. By providing the second polygonal hole 221, the rotation of the second link 41 with respect to the second polygonal hole 221 can be limited, so that the second reflecting mirror 4 is fixedly provided on the second rib 22. In this embodiment, the first polygonal hole 211 and the second polygonal hole 221 are square holes, and the cross sections of the first connecting frame 31 and the second connecting frame 41 are square. In other embodiments, the first and second polygonal holes 211 and 221 may also be triangular holes or other polygonal holes, and the cross-sections of the first and second connection frames 31 and 41 may also be triangular or other polygonal shapes.

Further, as shown in fig. 9 to 11, in order to facilitate the mounting of the first link 31 of the first mirror 3 into the first polygonal hole 211, the second link 41 of the second mirror 4 is mounted into the second polygonal hole 221, the sides of the two first ribs 21 close to the first mirror 3 are each provided with a first inclined surface 212, the first link 31 slides along the first inclined surface 212 to limit the first link 31 in the first polygonal hole 211, the sides of the two second ribs 22 close to the second mirror 4 are each provided with a second inclined surface 222, and the second link 41 slides along the second inclined surface 222 to limit the second link 41 in the second polygonal hole 221. The mounting of the first mirror 3 to the measuring tube 2 and the mounting of the second mirror 4 to the measuring tube 2 is effected.

Further, as shown in fig. 9 to 11, after the first reflecting mirror 3 and the second reflecting mirror 4 are mounted on the measuring pipe 2, the first reflecting mirror 3 and the second reflecting mirror 4 are mounted together in the ultrasonic pipe segment 1 such that the first reflecting mirror 3 is aligned with the first transducer mounting hole 11 and the second reflecting mirror 4 is aligned with the second transducer mounting hole 12, while the first connecting frame 31 and the second connecting frame 41 are pressed by the inner wall of the ultrasonic pipe segment 1, and the fixation of the first reflecting mirror 3 and the second reflecting mirror 4 is achieved.

It is to be understood that the above examples of the present utility model are provided for clarity of illustration only and are not limiting of the embodiments of the present utility model. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the utility model are desired to be protected by the following claims.

Claims (10)

1. The utility model provides an integral ultrasonic water meter survey buret structure, a serial communication port, including ultrasonic wave pipeline section and survey buret, the measurement pipe box is established in ultrasonic wave pipeline section, and the interval is equipped with first transducer mounting hole and second transducer mounting hole on the ultrasonic wave pipeline section, and survey buret one end symmetry is provided with two first ribs, and the slope is provided with first speculum between two first ribs, and survey buret other end symmetry is provided with two second ribs, and the slope is provided with the second speculum between two second ribs, and first speculum aligns with first transducer mounting hole, and the second speculum aligns with second transducer mounting hole to detect ultrasonic water meter's velocity of flow.

2. The measuring tube structure of the integral ultrasonic water meter according to claim 1, wherein the first reflecting mirror is symmetrically provided with two first connecting frames, the second reflecting mirror is symmetrically provided with two second connecting frames, the first connecting frames are connected with the first ribs in a one-to-one correspondence manner, and the second connecting frames are connected with the second ribs in a one-to-one correspondence manner.

3. The unitary ultrasonic water meter measuring tube structure of claim 2, wherein the first and second reflectors are placed in an injection mold and are integrally injection molded with the measuring tube during injection molding of the measuring tube to secure the first and second reflectors to the measuring tube.

4. The structure of measuring tube of integrated ultrasonic water meter according to claim 3, wherein the measuring tube comprises a first tube section and a second tube section, the first reflecting mirror and the first tube section are integrally injection molded once, the second reflecting mirror and the second tube section are integrally injection molded once, the first tube section and the second tube section are injection molded twice after being butted, a third tube section is injection molded on the outer peripheral surfaces of the first tube section and the second tube section, and the third tube section connects and fixes the first tube section and the second tube section.

5. The structure of measuring tube of integrated ultrasonic water meter according to claim 3, wherein the measuring tube further comprises a fourth tube segment, the fourth tube segment is formed by one-time injection molding, one end of the fourth tube segment is integrally injection molded with the fifth tube segment and the first reflecting mirror, and the other end of the fourth tube segment is integrally injection molded with the sixth tube segment and the second reflecting mirror.

6. The structure of claim 5, wherein the fourth section has a first groove and a second groove formed on an outer peripheral surface thereof, the fifth section has a first protrusion formed on an inner wall of the fifth section, the sixth section has a second protrusion formed on an inner wall of the sixth section, the first protrusion being engaged with the first groove, the second protrusion being engaged with the second groove to fixedly connect the fourth section with the fifth section and the sixth section.

7. The unitary ultrasonic water meter measuring tube structure of claim 2, wherein the first and second reflectors are removably attached to the measuring tube after injection molding of the measuring tube.

8. The structure of claim 7, wherein the two first ribs are each provided with a first polygonal hole in an inclined manner, and the two first connecting frames are polygonal frames, and the first connecting frames are inserted into the first polygonal holes in a one-to-one correspondence manner so as to incline the first reflecting mirror between the two first ribs.

9. The structure of claim 8, wherein the two second ribs are each provided with a second polygonal hole in an inclined manner, and the two second connecting frames are polygonal frames, and the second connecting frames are inserted into the second polygonal holes in a one-to-one correspondence manner so as to obliquely arrange the second reflecting mirror between the two second ribs.

10. The structure of claim 9, wherein the two first ribs are provided with first inclined surfaces on the surfaces of the two first ribs adjacent to the first reflector, the first connecting frame slides along the first inclined surfaces to limit the first connecting frame in the first polygonal hole, the two second ribs are provided with second inclined surfaces on the surfaces of the two second ribs adjacent to the second reflector, and the second connecting frame slides along the second inclined surfaces to limit the second connecting frame in the second polygonal hole.