Ultrasonic flow detection device and cross-flow sensor mechanism

Abstract

The present invention relates to an ultrasonic flow detection device and a cross-shooting flow sensor mechanism. The cross-shooting flow sensor mechanism comprises: a first cross-shooting body and a second cross-shooting body, the first cross-shooting body is provided with a first coordination portion and a first cross-shooting portion, the second cross-shooting body is provided with a second coordination portion and a second cross-shooting portion, the first coordination portion and the second coordination portion are both used to be installed on a pipe fitting, the first cross-shooting portion and the second cross-shooting portion can both extend into the flow channel of the pipe fitting, and the first cross-shooting portion and the second cross-shooting portion are matched in cross-shooting. The cross-shooting flow sensor mechanism can realize the cross-shooting signal transmission between the first cross-shooting portion and the second cross-shooting portion without the aid of or installation of a reflector, thereby making the use of the cross-shooting flow sensor mechanism more convenient.

Description

Technical Field

[0001] The invention relates to the technical field of ultrasonic flowmeters, and in particular to an ultrasonic sensor and a cross-flow sensing mechanism. Background Art

[0002] When measuring the speed of water flow, ultrasonic flow meters are often used. At present, traditional ultrasonic flow meters need to realize signal reflection between the probe core and the reflector to obtain the water speed in the target area. Therefore, when installing the ultrasonic flow meter, the probe core and the reflector need to be installed separately, which makes the use of the ultrasonic flow meter very inconvenient. Summary of the invention

[0003] Based on this, it is necessary to provide a through-flow flow sensor mechanism to address the inconvenience of using ultrasonic flow meters.

[0004] A cross-shooting flow sensor mechanism. The cross-shooting flow sensor mechanism comprises: a first cross-shooting body and a second cross-shooting body, the first cross-shooting body is provided with a first matching portion and a first cross-shooting portion, the second cross-shooting body is provided with a second matching portion and a second cross-shooting portion, the first matching portion and the second matching portion are both used to be installed on a pipe fitting, the first cross-shooting portion and the second cross-shooting portion can both extend into the flow channel of the pipe fitting, and the first cross-shooting portion and the second cross-shooting portion are matched in cross-shooting.

[0005] In one embodiment, the first coordination portion is connected to the first opposing portion, and the first coordination portion and the first opposing portion are integrally formed, and the first coordination portion and the first opposing portion are arranged at an angle; the second coordination portion is connected to the second opposing portion, and the second coordination portion and the second opposing portion are integrally formed, and the second coordination portion and the second opposing portion are arranged at an angle.

[0006] In one embodiment, the opposing beam flow sensor mechanism also includes a first piezoelectric ceramic and a first ultrasonic emitting surface, a first mounting cavity is opened on the first opposing beam portion, the first piezoelectric ceramic is installed in the first mounting cavity, the first ultrasonic emitting surface is installed on the first opposing beam portion, the first ultrasonic emitting surface covers the first mounting cavity, and the first ultrasonic emitting surface is bonded to the first piezoelectric ceramic.

[0007] In one embodiment, the through-flow flow sensor mechanism also includes a first mounting seat, a first fixing groove is formed on the first mounting seat, the first mounting seat is installed in the first mounting cavity, the first piezoelectric ceramic is installed in the first fixing groove, a first buffer gap is left between the groove wall of the first fixing groove and the first piezoelectric ceramic, and a first buffer layer is added to the side of the first piezoelectric ceramic facing the bottom wall of the first fixing groove.

[0008] In one embodiment, the counter-reflection flow sensor mechanism also includes a first elastic member, which is installed inside the first counter-reflection part, and one side of the first elastic member is in contact with the first mounting seat, and the other side of the first elastic member is in contact with a side of the first counter-reflection part facing away from the first ultrasonic emitting surface.

[0009] In one embodiment, the opposing beam flow sensor mechanism also includes a second piezoelectric ceramic and a second ultrasonic emitting surface, a second mounting cavity is opened on the second opposing beam part, the second piezoelectric ceramic is installed in the second mounting cavity, the second ultrasonic emitting surface is installed on the second opposing beam part, the second ultrasonic emitting surface covers the second mounting cavity, and the second ultrasonic emitting surface is bonded to the second piezoelectric ceramic, and when the first opposing beam part and the second opposing beam part are both extended into the flow channel of the pipe, the first ultrasonic emitting surface and the second ultrasonic emitting surface are arranged facing each other.

[0010] In one embodiment, the cross-flow flow sensor mechanism also includes a second mounting seat, a second fixing groove is formed on the second mounting seat, the second mounting seat is installed in the second mounting cavity, the second piezoelectric ceramic is installed in the second fixing groove, a second buffer gap is left between the groove wall of the second fixing groove and the second piezoelectric ceramic, and a second buffer layer is added to the side of the second piezoelectric ceramic facing the bottom wall of the second fixing groove.

[0011] In one embodiment, the counter-reflection flow sensor mechanism also includes a second elastic member, which is installed inside the second counter-reflection part, and one side of the second elastic member is in contact with the second mounting seat, and the other side of the second elastic member is in contact with a side of the first counter-reflection part that is away from the second ultrasonic emitting surface.

[0012] In one embodiment, the first coordination portion and the first reflecting portion form the first reflecting body, the second coordination portion and the second reflecting portion form the second reflecting body, and the internal gaps of the first reflecting body and the internal gaps of the second reflecting body are filled with sealing members.

[0013] When the above-mentioned opposing beam flow sensor mechanism is used, the size or model of the first opposing beam body and the second opposing beam body is first determined according to the size of the pipe to be measured (for example, the length of the pipe and the diameter of the pipe mouth of the pipe) to ensure the effective installation of the first opposing beam body and the second opposing beam body on the pipe. Then, when the first opposing beam body and the second opposing beam body are installed on the pipe, the first opposing beam body is installed by the first matching part and the pipe wall of the pipe or the installation hole reserved on the pipe, that is, the first opposing beam body is fixed on the pipe through the first matching part, and the first opposing beam part on the first opposing beam body can be fixed in the flow channel of the pipe. The second opposing beam body is installed by the second matching part and the pipe wall of the pipe or the installation hole reserved on the pipe, that is, the second opposing beam body is fixed on the pipe through the second matching part, and the second opposing beam part on the second opposing beam body can be fixed in the flow channel of the pipe. At this time, the first and second shooting parts can shoot signals in the pipe flow channel, and different water flow velocities will affect the shooting signals formed between the first and second shooting parts, that is, the ultrasonic time difference method principle can be used to process the detection signals formed above, so as to calculate the flow rate of the water flow inside the pipe. Compared with the traditional ultrasonic flow mechanism (which requires the use of ultrasonic core probe and reflective sheet reflection), the above shooting flow sensor mechanism can realize the shooting signal transmission between the first and second shooting parts without the help of or installation of reflective sheets, thereby making the use of the above shooting flow sensor mechanism more convenient.

[0014] When the ultrasonic flow detection device is in use, the opposing flow sensor mechanism is installed on the installation pipe. At this time, the first opposing part and the second opposing part can conduct signal opposition in the flow channel of the pipe. Different water flow velocities will affect the opposing signal formed between the first opposing part and the second opposing part, that is, the ultrasonic time difference method principle can be used to process the detection signal formed above, so as to calculate the flow rate of the water flow inside the pipe. Compared with the traditional ultrasonic flow mechanism (which requires the use of ultrasonic core probe and reflection of reflector), the opposing flow sensor mechanism can realize the opposing signal transmission between the first opposing part and the second opposing part without the help of or installation of reflector, thereby making the use of the opposing flow sensor mechanism more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of an ultrasonic flow detection device and a cross-flow sensor mechanism;

[0016] Figure 2 It is a structural schematic diagram of the first beam-receiving body according to one embodiment;

[0017] Figure 3 It is a schematic structural diagram of the first beam-receiving body described in another embodiment.

[0018] 100. A first projection body, 110. A first positioning portion, 120. A first projection portion, 130. A first piezoelectric ceramic, 140. A first ultrasonic emitting surface, 150. A first mounting seat, 160. A first buffer interval, 170. A first elastic member, 200. A second projection body, 210. A second positioning portion, 220. A second projection portion, 230. A second piezoelectric ceramic, 240. A second ultrasonic emitting surface, 250. A second mounting seat, 260. A second buffer interval, 270. A second elastic member, 300. A sealing member, 400. A mounting pipe. DETAILED DESCRIPTION

[0019] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0020] like Figures 1 to 3 As shown, in one embodiment, a pair-shooting flow sensor mechanism includes: a first pair-shooting body 100 and a second pair-shooting body 200, the first pair-shooting body 100 is provided with a first coordination portion 110 and a first pair-shooting portion 120, the second pair-shooting body 200 is provided with a second coordination portion 210 and a second pair-shooting portion 220, the first coordination portion 110 and the second coordination portion 210 are both used to be installed on a pipe fitting, the first pair-shooting portion 120 and the second pair-shooting portion 220 are both able to extend into the flow channel of the pipe fitting, and the first pair-shooting portion 120 and the second pair-shooting portion 220 are matched with each other.

[0021] When the above-mentioned cross-shooting flow sensor mechanism is used, the size or model of the first cross-shooting body 100 and the second cross-shooting body 200 is first determined according to the size of the pipe to be measured (for example, the length of the pipe and the diameter of the pipe mouth of the pipe) to ensure the effective installation of the first cross-shooting body 100 and the second cross-shooting body 200 on the pipe. Then, when the first cross-shooting body 100 and the second cross-shooting body 200 are installed on the pipe, the first cross-shooting body 100 is matched and installed with the pipe wall of the pipe or the installation hole reserved on the pipe through the first matching part 110, that is, the first cross-shooting body 100 is fixed on the pipe through the first matching part 110, and the first cross-shooting part 120 on the first cross-shooting body 100 can be fixed in the flow channel of the pipe. The second matching part 210 is used to match and install the second matching part 210 with the pipe wall of the pipe or the mounting hole reserved on the pipe, that is, the second matching part 210 is used to fix the second matching part 210 on the pipe, and the second matching part 220 on the second matching part 200 can be fixed in the flow channel of the pipe. At this time, the first matching part 120 and the second matching part 220 can match signals in the flow channel of the pipe, and different water flow rates will affect the matching signals formed between the first matching part 120 and the second matching part 220, that is, the ultrasonic time difference method principle can be used to process the detection signal formed above, so as to calculate the flow rate of the water flow inside the pipe. Compared with the traditional ultrasonic flow mechanism (which requires the use of ultrasonic core probe and reflection of reflective plate), the above-mentioned opposite-shooting flow sensor mechanism can realize the opposite-shooting signal transmission between the first opposite-shooting part 120 and the second opposite-shooting part 220 without the help of or installation of reflective plate, thereby making the use of the above-mentioned opposite-shooting flow sensor mechanism more convenient.

[0022] In one embodiment, the opposing flow sensor mechanism further includes a processor or a central control board, and the processor or the central control board is electrically connected to the first opposing body 100 and the second opposing body 200 .

[0023] like Figure 1As shown, in one embodiment, the first coordination portion 110 is connected to the first facing portion 120, and the first coordination portion 110 and the first facing portion 120 are integrally formed, and the first coordination portion 110 and the first facing portion 120 are arranged at an angle; the second coordination portion 210 is connected to the second facing portion 220, and the second coordination portion 210 and the second facing portion 220 are integrally formed, and the second coordination portion 210 and the second facing portion 220 are arranged at an angle. Specifically, the first coordination portion 110 and the second coordination portion 210 are both blocks or plates. The first facing portion 120 and the second facing portion 220 are both blocks or plates. By integrally forming the first coordination portion 110 and the first facing portion 120, and the second coordination portion 210 and the second facing portion 220, it is ensured that the first facing body 100 and the second facing body 200 are assembled on the pipe more conveniently. Furthermore, the angle between the first matching portion 110 and the first matching portion 120 is 90°, and the angle between the second matching portion 210 and the second matching portion 220 is 90°. The above embodiment can ensure that the matching signal between the first matching portion 120 and the second matching portion 220 can propagate in a straight line, thereby improving the sensitivity of the first matching body 100 and the second matching body 200 in receiving the matching signal, that is, improving the overall detection accuracy of the matching flow sensor mechanism.

[0024] like Figure 2 and Figure 3As shown, in one embodiment, the cross-fire flow sensor mechanism further includes a first piezoelectric ceramic 130 and a first ultrasonic emitting surface 140, a first mounting cavity is provided on the first cross-fire portion 120, the first piezoelectric ceramic 130 is installed in the first mounting cavity, the first ultrasonic emitting surface 140 is installed on the first cross-fire portion 120, the first ultrasonic emitting surface 140 covers the first mounting cavity, and the first ultrasonic emitting surface 140 is bonded to the first piezoelectric ceramic 130. The cross-fire flow sensor mechanism further includes a first mounting seat 150, a first fixing groove is provided on the first mounting seat 150, the first mounting seat 150 is installed in the first mounting cavity, the first piezoelectric ceramic 130 is installed in the first fixing groove, a first buffer interval 160 is left between the groove wall of the first fixing groove and the first piezoelectric ceramic 130, and a first buffer layer is added to a side of the first piezoelectric ceramic 130 facing the bottom wall of the first fixing groove. Specifically, according to the installation requirements, a first installation cavity can be directly opened on the first projection part 120, so that the first piezoelectric ceramic 130 can be installed on the first projection part 120. When installing the first piezoelectric ceramic 130, the first piezoelectric ceramic 130 can be first installed on the first mounting seat 150, and then the first mounting seat 150 and the first piezoelectric ceramic 130 are installed in the first installation cavity as a whole. On the one hand, the above installation method can effectively avoid damage to the self-structure of the first piezoelectric ceramic 130 during the installation process, and on the other hand, the first piezoelectric ceramic 130 is limited inside the first projection part 120 by the first mounting seat 150, thereby effectively avoiding the displacement of the first piezoelectric ceramic 130 in the first projection part 120. Furthermore, the first ultrasonic emitting surface 140 and the first piezoelectric ceramic 130 can be bonded by glue or adhesive. Thus, the alignment degree between the first ultrasonic emitting surface 140 and the first piezoelectric ceramic 130 is ensured, and the misalignment between the first ultrasonic emitting surface 140 and the first piezoelectric ceramic 130 is avoided. The first buffer layer can be a lightweight material (such as a foam material) or a damping material with a characteristic acoustic impedance, that is, the first piezoelectric ceramic 130 is prevented from being damaged by friction with the first mounting seat 150.

[0025] like Figure 1 and Figure 2As shown, in one embodiment, the cross-reflection flow sensor mechanism further includes a first elastic member 170, which is installed inside the first cross-reflection part 120, and one side of the first elastic member 170 is in contact with the first mounting seat 150, and the other side of the first elastic member 170 is in contact with the side of the first cross-reflection part 120 that is away from the first ultrasonic emitting surface 140. Specifically, the first elastic member 170 is an elastic gasket or an elastic block. When the first elastic member 170 is installed inside the first cross-reflection part 120, the side of the first cross-reflection part 120 that is away from the first ultrasonic emitting surface 140 will be impacted by the water flow, and at this time, the first elastic member 170 can effectively neutralize the impact force on the first cross-reflection part 120, thereby avoiding damage to the first cross-reflection part 120.

[0026] Furthermore, when the first mounting seat 150 is installed in the first mounting cavity, the first elastic member 170 can provide a supporting force for the first mounting seat 150, and at the same time, the first piezoelectric ceramic 130 located on the first mounting seat 150 can be more closely attached to the first ultrasonic reflection surface under the action of the supporting force. Furthermore, when the first elastic member 170 generates a corresponding elastic reset force due to the impact force of the water flow, the elastic reset force will act on the first mounting seat 150. At this time, a first buffer interval 160 is left between the groove wall of the first fixed groove and the first piezoelectric ceramic 130, that is, the bottom of the first mounting seat 150 is deformed accordingly by using the first buffer interval 160 under the action of the elastic reset force. At this time, the groove wall of the first fixed groove will not be affected by the above-mentioned elastic reset force, thereby effectively avoiding the elastic reset force generated by the first elastic member 170 from causing resistance and damage to the first piezoelectric ceramic 130 installed on the first mounting seat 150.

[0027] In one embodiment, the side of the first counter-reflecting portion 120 facing away from the first ultrasonic emitting surface 140 can be designed as a curved surface, that is, when water flows through the first counter-reflecting portion 120, the curved surface can effectively reduce the blocking effect on the water flow, so that the water flow velocity obtained by the counter-reflecting flow sensor mechanism can be closer to the actual water flow velocity.

[0028] like Figure 1As shown, in one embodiment, the cross-reflection flow sensor mechanism further includes a second piezoelectric ceramic 230 and a second ultrasonic emitting surface 240. A second mounting cavity is provided on the second cross-reflection portion 220, the second piezoelectric ceramic 230 is installed in the second mounting cavity, the second ultrasonic emitting surface 240 is installed on the second cross-reflection portion 220, the second ultrasonic emitting surface 240 covers the second mounting cavity, and the second ultrasonic emitting surface 240 is bonded to the second piezoelectric ceramic 230. When the first cross-reflection portion 120 and the second cross-reflection portion 220 are both extended into the flow channel of the pipe, the first ultrasonic emitting surface 140 and the second ultrasonic emitting surface 240 are arranged facing each other. The cross-injection flow sensor mechanism also includes a second mounting seat 250, a second fixing groove is opened on the second mounting seat 250, the second mounting seat 250 is installed in the second mounting cavity, the second piezoelectric ceramic 230 is installed in the second fixing groove, a second buffer gap 260 is left between the groove wall of the second fixing groove and the second piezoelectric ceramic 230, and a second buffer layer is added to the side of the second piezoelectric ceramic 230 facing the second fixing groove.

[0029] Specifically, according to the installation requirements, a second installation cavity can be directly opened on the second projection part 220, so that the second piezoelectric ceramic 230 can be installed on the second projection part 220. When installing the second piezoelectric ceramic 230, the second piezoelectric ceramic 230 can be first installed on the second mounting seat 250, and then the second mounting seat 250 and the second piezoelectric ceramic 230 are installed in the second installation cavity as a whole. On the one hand, the above installation method can effectively avoid damage to the self-structure of the second piezoelectric ceramic 230 during the installation process, and on the other hand, the second piezoelectric ceramic 230 is limited inside the second projection part 220 by the second mounting seat 250, thereby effectively avoiding the displacement of the second piezoelectric ceramic 230 in the second projection part 220. Furthermore, the second ultrasonic emitting surface 240 and the second piezoelectric ceramic 230 can be bonded by glue or adhesive. Thus, the alignment degree between the second ultrasonic emitting surface 240 and the second piezoelectric ceramic 230 is ensured, and the misalignment between the second ultrasonic emitting surface 240 and the second piezoelectric ceramic 230 is avoided. The second buffer layer can be a lightweight material (such as a foam material) or a damping material with a characteristic acoustic impedance, that is, the second piezoelectric ceramic 230 is prevented from being damaged by friction with the second mounting seat 250.

[0030] like Figure 1As shown, in one embodiment, the cross-reflection flow sensor mechanism further includes a second elastic member 270, which is installed inside the second cross-reflection part 220, and one side of the second elastic member 270 is in contact with the second mounting seat 250, and the other side of the second elastic member 270 is in contact with the side of the first cross-reflection part 120 that is away from the second ultrasonic emitting surface 240. Specifically, the second elastic member 270 is an elastic gasket or an elastic block. When the second elastic member 270 is installed inside the second cross-reflection part 220, the side of the second cross-reflection part 220 that is away from the second ultrasonic emitting surface 240 will be impacted by the water flow, and at this time, the second elastic member 270 can effectively neutralize the impact force on the second cross-reflection part 220, thereby preventing the second cross-reflection part 220 from being damaged. Furthermore, when the second mounting seat 250 is installed in the second mounting cavity, the second elastic member 270 can provide a supporting force for the second mounting seat 250, and at the same time, the second piezoelectric ceramic 230 located on the second mounting seat 250 can be more closely fitted with the second ultrasonic reflection surface under the action of the supporting force. Furthermore, when the second elastic member 270 generates a corresponding elastic reset force due to the impact force of the water flow, the elastic reset force will act on the second mounting seat 250. At this time, a second buffer interval 260 is left between the groove wall of the second fixed groove and the second mounting seat 250, that is, the bottom of the second mounting seat 250 is deformed accordingly by the second buffer interval 260 under the action of the elastic reset force. At this time, the groove wall of the second fixed groove will not be affected by the above-mentioned elastic reset force, thereby effectively avoiding the elastic reset force generated by the second elastic member 270 from causing interference and damage to the second piezoelectric ceramic 230 installed on the second mounting seat 250.

[0031] In one embodiment, the side of the first radiating portion 120 facing away from the first ultrasonic emitting surface 140 can be designed as an arc surface, that is, when the water flows through the first radiating portion 120, the arc surface can effectively reduce the blocking effect on the water flow, so that the water flow velocity obtained by the radiating flow sensor mechanism can be closer to the actual water flow velocity. This is just one embodiment, for example: the angle of the first radiating portion 120 relative to the water flow (horizontal plane) can be appropriately adjusted according to the water flow conditions, and the angle of the second radiating portion 220 relative to the water flow can be adjusted.

[0032] like Figures 1 to 3As shown, in one embodiment, the first matching portion 110 and the first matching portion 120 form the first matching body 100, the second matching portion 210 and the second matching portion 220 form the second matching body 200, and the internal gaps of the first matching body 100 and the internal gaps of the second matching body 200 are filled with a sealant 300. Specifically, the sealant 300 is a potting glue or a sealant. By adding the sealant 300 inside the first matching body 100 and the second matching body 200, the first matching body 100 and the second matching body 200 are waterproof and dustproof.

[0033] like Figure 1 As shown, in one embodiment, an ultrasonic flow detection device includes the through-fire flow sensor mechanism described in any one of the above embodiments, and also includes a mounting pipe 400, and the through-fire flow sensor mechanism is installed on the mounting pipe 400.

[0034] When the ultrasonic flow detection device is in use, the cross-fire flow sensor mechanism is installed on the installation pipe 400. At this time, the first cross-fire part 120 and the second cross-fire part 220 can conduct cross-fire signals in the pipe flow channel, and different water flow velocities will affect the cross-fire signals formed between the first cross-fire part 120 and the second cross-fire part 220, that is, the ultrasonic time difference method principle can be used to process the detection signal formed above, so as to calculate the flow rate of the water flow inside the pipe. Compared with the traditional ultrasonic flow mechanism (which requires the use of ultrasonic core probe and reflection of the reflector), the cross-fire flow sensor mechanism can realize the cross-fire signal transmission between the first cross-fire part 120 and the second cross-fire part 220 without the help of or installation of the reflector, thereby making the use of the cross-fire flow sensor mechanism more convenient.

[0035] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0036] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0038] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0039] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0041] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

Claims

1. A flow sensor mechanism, characterized in that: The opposing flow sensor mechanism includes: a first opposing body, a second opposing body, a first piezoelectric ceramic and a first mounting seat, the first opposing body is provided with a first coordination portion and a first opposing portion, the second opposing body is provided with a second coordination portion and a second opposing portion, the first coordination portion and the second coordination portion are both used to be installed on a pipe fitting, the first opposing portion and the second opposing portion can both extend into the flow channel of the pipe fitting, and the first opposing portion and the second opposing portion are opposed to each other; a first mounting cavity is provided on the first opposing portion, a first fixing groove is provided on the first mounting seat, the first mounting seat is mounted in the first mounting cavity, the first piezoelectric ceramic is mounted in the first fixing groove, a first buffer gap is left between the groove wall of the first fixing groove and the first piezoelectric ceramic, and a first buffer layer is added to the side of the first piezoelectric ceramic facing the bottom wall of the first fixing groove.

2. The through-flow sensor mechanism according to claim 1, characterized in that: The first coordination portion is connected to the first opposing portion, and the first coordination portion and the first opposing portion are integrally formed, and the first coordination portion and the first opposing portion are set at an angle; the second coordination portion is connected to the second opposing portion, and the second coordination portion and the second opposing portion are integrally formed, and the second coordination portion and the second opposing portion are set at an angle.

3. The through-flow sensor mechanism according to claim 1, characterized in that: It also includes a first ultrasonic emitting surface. The first piezoelectric ceramic is installed in the first installation cavity. The first ultrasonic emitting surface is installed on the first radiation portion. The first ultrasonic emitting surface covers the first installation cavity. The first ultrasonic emitting surface is bonded to the first piezoelectric ceramic.

4. The through-flow flow sensor mechanism according to claim 1, characterized in that: It also includes a first elastic member, which is installed inside the first reflective portion, and one side of the first elastic member is in contact with the first mounting seat, and the other side of the first elastic member is in contact with a side of the first reflective portion that is away from the first ultrasonic emitting surface.

5. The through-flow flow sensor mechanism according to claim 3 is characterized in that: It also includes a second piezoelectric ceramic and a second ultrasonic emitting surface. The second reflecting part is provided with a second installation cavity. The second piezoelectric ceramic is installed in the second installation cavity. The second ultrasonic emitting surface is installed on the second reflecting part. The second ultrasonic emitting surface covers the second installation cavity. The second ultrasonic emitting surface is bonded to the second piezoelectric ceramic. When the first reflecting part and the second reflecting part are both extended into the flow channel of the pipe, the first ultrasonic emitting surface and the second ultrasonic emitting surface are arranged facing each other.

6. The through-flow flow sensor mechanism according to claim 5, characterized in that: It also includes a second mounting seat, a second fixing groove is formed on the second mounting seat, the second mounting seat is installed in the second mounting cavity, the second piezoelectric ceramic is installed in the second fixing groove, a second buffer gap is left between the groove wall of the second fixing groove and the second piezoelectric ceramic, and a second buffer layer is added to the side of the second piezoelectric ceramic facing the bottom wall of the second fixing groove.

7. The through-flow flow sensor mechanism according to claim 6, characterized in that: It also includes a second elastic member, which is installed inside the second reflective portion, and one side of the second elastic member is in contact with the second mounting seat, and the other side of the second elastic member is in contact with a side of the first reflective portion away from the second ultrasonic emitting surface.

8. The through-flow flow sensor mechanism according to any one of claims 1 to 7, characterized in that: The first coordination portion and the first opposing portion form the first opposing body, the second coordination portion and the second opposing portion form the second opposing body, and the internal gaps of the first opposing body and the internal gaps of the second opposing body are filled with sealing members.

9. The through-flow flow sensor mechanism according to claim 2, characterized in that: An included angle between the first coordination portion and the first opposing portion is 90°, and an included angle between the second coordination portion and the second opposing portion is 90°.

10. An ultrasonic flow detection device, characterized in that: It comprises the through-fire flow sensor mechanism as described in any one of claims 1 to 9, and also comprises a mounting pipe fitting, and the through-fire flow sensor mechanism is installed on the mounting pipe fitting.

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