阅读说明：本技术 一种超声波换能器安装装置及应用该安装装置的超声波水表 (Ultrasonic transducer installation device and ultrasonic water meter using same ) 是由 杨正金 于 2019-09-29 设计创作，主要内容包括：本发明涉及一种超声波换能器安装装置,包括机芯,机芯内贯穿设置有通孔,机芯内还设置用于安装超声波换能器的第一安装孔和第二安装孔,第一安装孔和第二安装孔同轴设置在通孔的两侧,并且第一安装孔和第二安装孔均与通孔相连通。本发明还涉及一种超声波水表,超声波换能器安装装置、机壳、超声波换能器以及封盖。机壳内具有用于安装机芯的腔体,腔体与机壳内的流道相连通。封盖覆盖设置在腔体的口部并连接在机壳上。本发明中的超声波换能器安装装置有效保证超声波换能器安装孔的同轴度。本发明中超声波水表测量准确度高。(The invention relates to an ultrasonic transducer mounting device which comprises a machine core, wherein a through hole is formed in the machine core in a penetrating manner, a first mounting hole and a second mounting hole which are used for mounting an ultrasonic transducer are further formed in the machine core, the first mounting hole and the second mounting hole are coaxially arranged on two sides of the through hole, and the first mounting hole and the second mounting hole are communicated with the through hole. The invention also relates to an ultrasonic water meter, an ultrasonic transducer mounting device, a machine shell, an ultrasonic transducer and a sealing cover. The casing is internally provided with a cavity for installing the machine core, and the cavity is communicated with a flow passage in the casing. The sealing cover covers the opening of the cavity and is connected to the machine shell. The ultrasonic transducer mounting device effectively ensures the coaxiality of the ultrasonic transducer mounting hole. The ultrasonic water meter has high measurement accuracy.)

1. An ultrasonic transducer mounting apparatus characterized in that: including core (1), it is provided with through-hole (11) to run through in core (1), still set up first mounting hole (12) and second mounting hole (13) that are used for installing ultrasonic transducer (2) in core (1), first mounting hole (12) and second mounting hole (13) coaxial setting are in the both sides of through-hole (11) to first mounting hole (12) and second mounting hole (13) all are linked together with through-hole (11).

2. The ultrasonic transducer mounting device according to claim 1, wherein: still be provided with first line hole (14) and second in core (1) and cross line hole (15) for placing the electric wire, the entry of first line hole (14) is close to first mounting hole (12) and sets up, second is crossed line hole (15) and is close to second mounting hole (13) and sets up, the export setting of first line hole (14) and second line hole (15) is crossed on the surface of core (1).

3. the ultrasonic transducer mounting device according to claim 2, wherein: the outlets of the first wire passing hole (14) and the second wire passing hole (15) are overlapped.

4. the ultrasonic transducer mounting device according to claim 1, wherein: and a cover plate (3) for fixing the ultrasonic transducer (2) is fixedly arranged on the side wall of the machine core (1) corresponding to each mounting hole.

5. The ultrasonic transducer mounting device according to claim 1, wherein: the movement (1) comprises a surrounding plate (101), a tube body (102) and a mounting plate (103), the surrounding plate (101) is arranged in an annular shape, the tube body (102) is connected in the surrounding plate (101) along the radial direction of the surrounding plate (101), the surrounding plate (101) is arranged corresponding to openings of openings at two ends of the tube body (102), and a cavity (41) in the tube body (102) forms the through hole (11);

The mounting plate (103) is connected in the enclosing plate (101) along the mounting direction of the ultrasonic transducer (2), the mounting plate (103) is connected with the tube body (102), and the first mounting hole (12) and the second mounting hole (13) are arranged in the mounting plate (103).

6. The ultrasonic transducer mounting device according to any one of claims 1 to 5, wherein: the movement (1) is integrally formed by injection molding.

7. The ultrasonic transducer mounting device according to any one of claims 1 to 5, wherein: at least one group of first mounting holes (12) and second mounting holes (13) is arranged.

8. an ultrasonic water meter, characterized in that: an ultrasonic transducer mounting apparatus comprising the ultrasonic transducer mounting apparatus of any one of claims 1 to 7, further comprising a housing (4), an ultrasonic transducer (2), and a cover (5);

The ultrasonic transducer (2) comprises a transmitting transducer and a receiving transducer, and the transmitting transducer and the receiving transducer are respectively arranged in the first mounting hole (12) and the second mounting hole (13);

The shell (4) is internally provided with a cavity (41), and the cavity (41) is communicated with a flow channel (42) in the shell (4);

The ultrasonic transducer mounting device is arranged in the cavity (41) in a matching manner, and the through hole (11) of the movement (1) can be butted with a flow channel (42) in the machine shell (4);

The sealing cover (5) covers the opening part of the cavity (41) and is connected to the machine shell (4).

9. An ultrasonic water meter as set forth in claim 8, wherein: a first positioning hole (16) is formed in the machine core (1), and a positioning groove corresponding to the first positioning hole (16) is formed in the sealing cover (5);

The sealing cover (5) is provided with a second positioning hole (51), and the machine shell (4) is provided with a third positioning hole (43) corresponding to the second positioning hole (51).

Technical Field

the invention relates to an ultrasonic transducer mounting device and an ultrasonic water meter using the ultrasonic transducer mounting device.

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. The method has the characteristics of low initial flow velocity, wide range ratio, high measurement precision and stable work. The internal no-moving part has no flow resisting element, is not influenced by impurities in water, has long service life and complete output communication function, and meets the requirements of various communications and wireless networking.

An ultrasonic water meter is disclosed in the patent of Chinese utility model with the publication number of CN208109195U (application number of 201820590615.8), wherein the ultrasonic water meter comprises an electronic meter head, a measuring pipe section, ultrasonic transducers and a measuring circuit board, the ultrasonic transducers are arranged at two sides of the measuring pipe section, probes of the ultrasonic transducers extend into a flow channel of the measuring pipe section, and leads of the ultrasonic transducers penetrate through lead holes on the measuring pipe section and are welded with the measuring circuit board; the upper part of the measuring pipe section is provided with an electronic device mounting cavity, the electronic meter head is mounted at the upper end of the measuring pipe section and is opposite to the electronic device mounting cavity, the measuring circuit board is mounted in the electronic device mounting cavity, the center of the measuring circuit board is provided with an avoiding hole, a water pressure sensor penetrates through the avoiding hole and is mounted in the center of the electronic device mounting cavity, and the measuring circuit board and the water pressure sensor are electrically connected with a main control circuit board in the electronic meter head through leads; the measuring circuit board, the water pressure sensor and the lead positioned in the electronic device mounting cavity are fixed through glue encapsulation. This ultrasonic water meter can realize water pressure and detect, reduces the interference to measuring signal simultaneously, reduces the on-the-spot maintenance degree of difficulty. Ultrasonic transducer direct mount is in measuring the pipeline section in the ultrasonic water meter of this structure, and the measurement pipeline section is the metalwork usually, and when processing ultrasonic transducer's installation passageway on the measurement pipeline section, the degree of difficulty of ordinary processing is high, and the machining precision is unsatisfactory, and ultrasonic transducer installation passageway axiality can't be guaranteed to precision in the ultrasonic water meter of difference can't guarantee uniformly, can't guarantee product measuring result's uniformity. In addition, after the ultrasonic transducers are installed, because the internal space of the measuring pipe section is narrow, the distance between one group of ultrasonic transducers cannot be directly measured, and the calculation error of water flow is directly large. If the mounting channel of the ultrasonic transducer in the measuring pipe section is precisely machined by using four or more machining centers, the machining precision can be ensured, but the machining cost is higher and the efficiency is lower.

Disclosure of Invention

the first technical problem to be solved by the present invention is to provide an ultrasonic transducer mounting apparatus capable of effectively ensuring the coaxiality accuracy and consistency of the ultrasonic transducer mounting holes, and simultaneously realizing detachable mounting, in view of the above-mentioned prior art.

The second technical problem to be solved by the present invention is to provide an ultrasonic water meter with high measurement accuracy in view of the above prior art.

The technical scheme adopted by the invention for solving the first technical problem is as follows: an ultrasonic transducer mounting apparatus characterized in that: the ultrasonic transducer comprises a machine core independent of a machine shell, wherein a through hole is formed in the machine core in a penetrating mode, a first mounting hole and a second mounting hole are further formed in the machine core and used for mounting an ultrasonic transducer, the first mounting hole and the second mounting hole are coaxially arranged on two sides of the through hole, and the first mounting hole and the second mounting hole are communicated with the through hole.

In order to effectively realize the protection of the electric wire and facilitate the wiring, a first wire passing hole and a second wire passing hole for placing the electric wire are further arranged in the movement, the inlet of the first wire passing hole is arranged close to the first mounting hole, the second wire passing hole is arranged close to the second mounting hole, and the outlets of the first wire passing hole and the second wire passing hole are arranged on the outer surface of the movement.

Conveniently connected, the outlets of the first wire passing hole and the second wire passing hole are overlapped.

In order to fix the ultrasonic transducer conveniently, the phenomenon that the ultrasonic transducer shakes to influence the working effect is avoided, and a cover plate used for fixing the ultrasonic transducer is fixedly arranged on the side wall of the machine core corresponding to each mounting hole.

The movement comprises a coaming, a tube body and a mounting plate at low cost, wherein the coaming is arranged in an annular shape, the tube body is connected in the coaming along the radial direction of the coaming, the coaming is arranged corresponding to the opening of the mouth parts at the two ends of the tube body, and the cavity in the tube body forms the through hole;

The mounting panel is connected in the bounding wall along ultrasonic transducer installation direction, and the mounting panel with the body is connected, first mounting hole and second mounting hole set up in the mounting panel.

Preferably, the movement is integrally injection-molded.

optionally, at least one set of the first mounting hole and the second mounting hole is provided.

The technical scheme adopted by the invention for solving the second technical problem is as follows: an ultrasonic water meter, characterized in that: the ultrasonic transducer mounting device comprising any one of claims 1 to 7, further comprising a housing, an ultrasonic transducer, and a cover;

the ultrasonic transducer comprises a transmitting transducer and a receiving transducer, and the transmitting transducer and the receiving transducer are respectively arranged in the first mounting hole and the second mounting hole;

the shell is internally provided with a cavity which is communicated with a flow passage in the shell;

the ultrasonic transducer mounting device is arranged in the cavity in a matching way, and the through hole of the machine core can be butted with the flow channel in the machine shell;

The sealing cover covers the opening of the cavity and is connected to the machine shell.

In order to conveniently realize the positioning and installation of the machine core in the machine shell cavity, a first positioning hole is formed in the machine core, and a positioning groove corresponding to the first positioning hole is formed in the sealing cover;

The sealing cover is provided with a second positioning hole, and the machine shell is provided with a third positioning hole corresponding to the second positioning hole.

compared with the prior art, the invention has the advantages that: the ultrasonic transducer mounting device is provided with a machine core independent from a machine shell, and the machine core can be detachably mounted in the machine shell. The core can be manufactured by molding through a die, and the parameters are always high. The first mounting hole and the second mounting hole which are coaxially formed in the machine core are used for mounting the ultrasonic transducer, the coaxiality of the ultrasonic transducer is guaranteed, the detection accuracy can be improved, meanwhile, the machining cost of the machine core is low, and the installation is simple and convenient. Compared with the existing ultrasonic water meter, the ultrasonic water meter using the ultrasonic transducer mounting device is high in processing efficiency and low in processing cost, the mounting coaxiality of the ultrasonic transducer is high, and the accuracy of a measuring result is high.

Drawings

Fig. 1 is a perspective view of an ultrasonic water meter according to an embodiment of the present invention.

Fig. 2 is an exploded perspective view of an ultrasonic water meter according to an embodiment of the present invention.

Fig. 3 is a perspective view of the movement in the embodiment of the present invention.

Fig. 4 is a cross-sectional view of an ultrasonic water meter in an embodiment of the invention.

Figure 5 is a cross-sectional view of an ultrasonic water meter at another angle in accordance with an embodiment of the present invention.

fig. 6 is a cross-sectional view of the movement along the axial direction of the first mounting hole and the second mounting hole in the embodiment of the invention.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

The present embodiment directly describes the overall structure of the ultrasonic water meter, and further describes the structure of the ultrasonic transducer mounting device and the structure of the ultrasonic water meter at the same time.

As shown in fig. 1 to 6, the ultrasonic water meter in the present embodiment includes a housing 4, an ultrasonic transducer mounting device, an ultrasonic transducer 2, and a cover 5. The ultrasonic transducer 2 includes a transmitting transducer and a receiving transducer, and the transmitting transducer and the receiving transducer are coaxially arranged to perform a flow rate detection operation.

The casing 4 is a measuring pipe section in the prior art, the casing 4 is tubular, a flow channel 42 is arranged in the casing 4, and two ends of the casing 4 are respectively provided with a connecting flange for connecting the casing to a water pipe, so as to measure the flow rate flowing through the water pipe.

The middle part of the casing 4 is provided with a cavity 41 with an opening at the upper end, and the shape and the volume of the accommodating space of the cavity 41 are matched with the shape and the volume of the ultrasonic transducer mounting device. The cavity 41 is in communication with a flow passage 42 in the housing 4, and specifically, the flow passage 42 extends from a sidewall of the cavity 41.

After the ultrasonic transducer 2 is mounted on the ultrasonic transducer mounting device, the ultrasonic transducer mounting device can be mounted in the cavity 41 in a matching manner. The cover 5 may be attached to the housing 4 so as to cover the opening of the cavity 41, and thus the ultrasonic transducer mounting device to which the ultrasonic transducer 2 is mounted may be fixed in the cavity 41.

the ultrasonic transducer mounting device includes a movement 1 and a cover plate 3.

Wherein the integrative injection moulding of core 1, run through being provided with through-hole 11 in the core 1, still set up first mounting hole 12, the second mounting hole 13 that is used for installing transmitting transducer, receiving transducer respectively in the core 1, first mounting hole 12 and the coaxial setting in through-hole 11 both sides of second mounting hole 13 to first mounting hole 12 and second mounting hole 13 all are linked together with through-hole 11. The axes of the first mounting hole 12 and the second mounting hole 13 form a certain included angle with the axis of the through hole 11 to realize measurement. After the movement 1 is installed in the cavity 41 of the casing 4, the through hole 11 in the movement 1 is just communicated with the flow channel 42 of the casing 4, and further a pipeline for water to flow through is formed together. The first mounting holes 12 and the second mounting holes 13 are provided in pairs as a set, and the number of the sets of the first mounting holes 12 and the second mounting holes 13 is the same as the number of the ultrasonic transducers 2 to be mounted. In the embodiment, the ultrasonic transducers 2 are provided in two sets, and the first mounting holes 12 and the second mounting holes 13 are provided in two sets, and the two sets of the first mounting holes 12 and the second mounting holes 13 are arranged in an up-and-down manner.

Still be provided with the first line hole 14 and the second line hole 15 of crossing that are used for placing the electric wire in the core 1, the entry of the first line hole 14 of crossing is close to first mounting hole 12 and sets up, the second line hole 15 of crossing is close to second mounting hole 13 and sets up, the first line hole 14 of crossing with the second line hole 15 of crossing export coincidence sets up on the surface of core 1, the first line hole 14 of crossing in this embodiment and the second line hole 15 of crossing export are located the central point on core 1 upper surface. After the transmitting transducer and the receiving transducer are mounted in the first mounting hole 12 and the second mounting hole 13, wires connecting the transmitting transducer and the receiving transducer respectively extend out of the outer surface of the movement 1 through the first wire passing hole 14 and the second wire passing hole 15, and then are connected with an external circuit board. The sealing cover 5 is provided with a small hole corresponding to the outlets of the first wire passing hole 14 and the second wire passing hole 15, a sealing ring is arranged between the sealing cover 5 and the upper surface of the movement 1, and the sealing ring is positioned on the periphery of the small hole.

A cover plate 3 for fixing the ultrasonic transducer 2 is fixedly arranged on the side wall of the movement 1 corresponding to each mounting hole. And a sealing ring is arranged between the cover plate 3 and the side wall of the machine core 1 and is positioned at the periphery of the first mounting hole 12 and the second mounting hole 13. After the transmitting transducer and the receiving transducer are installed in the first mounting hole 12 and the second mounting hole 13, the cover plate 3 is covered outside the ultrasonic transducer 2 corresponding to the positions of the first mounting hole 12 and the second mounting hole 13 on the outer surface of the machine core 1, so that the ultrasonic transducer 2 is protected, the ultrasonic transducer 2 is pressed, and the influence on the measurement result caused by the shaking of the ultrasonic transducer 2 is avoided.

The specific structure of the movement 1 injection molded in this embodiment is: the movement 1 comprises a surrounding plate 101, a tube body 102 and a mounting plate 103, wherein the surrounding plate 101 is arranged in an annular mode, the tube body 102 is connected in the surrounding plate 101 along the radial direction of the surrounding plate 101, the surrounding plate 101 is arranged corresponding to openings of openings at two ends of the tube body 102, the opening edge on the surrounding plate 101 is integrally connected with the end part of the tube body 102, and a through hole 11 is formed in a cavity 41 in the tube body 102. The mounting plate 103 is connected in the enclosing plate 101 along the mounting direction of the ultrasonic transducer 2, the mounting plate 103 is integrally connected with the outer wall of the tube body 102 and the inner wall of the enclosing plate 101, and the first mounting hole 12, the second mounting hole 13, the first wire passing hole 14 and the second wire passing hole 15 are all arranged in the mounting plate 103.

In order to ensure that the through hole 11 of the movement 1 is just butted with the flow channel 42 in the casing 4 after the movement 1 is installed in the cavity 41 of the casing 4, a first positioning hole 16 is arranged on the movement 1, and a positioning groove corresponding to the first positioning hole 16 is arranged on the sealing cover 5. The cover 5 is provided with a second positioning hole 51, and the housing 4 is provided with a third positioning hole 43 corresponding to the second positioning hole 51.

During installation, after the ultrasonic transducer 2 is installed in the first installation hole 12 and the second installation hole 13 of the ultrasonic transducer installation device and fixed by the cover plate 3, the machine core 1 is firstly connected to the sealing cover 5, namely, the machine core is fixed in the positioning groove by penetrating the first positioning hole 16 through a screw, so that the positioning connection of the machine core 1 on the sealing cover 5 is realized. Then, the connected cover 5 and the movement 1 are inserted into the cavity 41 of the casing 4, and then bolts are used to pass through the second positioning hole 51 and the third positioning hole 43, so as to realize the positioning connection between the cover 5 and the casing 4. The positioning of the movement 1 in the casing 4 is realized through the process, and the channel in the movement 1 is ensured to be just butted with the flow passage 42 on the casing 4.

The movement 1 is arranged independently of the shell 4 and can be detachably connected in the shell 4. And the core 1 is formed by integral injection molding of a die, so that high-precision coaxiality between the first mounting hole 12 and the second mounting hole 13 in the core 1 is ensured, consistency of processing parameters is ensured, further the mounting coaxiality of the ultrasonic transducer 2 is ensured, and accuracy of flow detection is improved. Meanwhile, the machine core 1 is low in processing cost and simple and convenient to install. Compared with the existing ultrasonic water meter, the ultrasonic water meter using the ultrasonic transducer mounting device has the advantages of high processing efficiency, low processing cost, high mounting coaxiality of the ultrasonic transducer 2 and high accuracy of a measuring result.