CN212364346U - Ultrasonic flow detection device and correlation flow sensing mechanism - Google Patents
Ultrasonic flow detection device and correlation flow sensing mechanism Download PDFInfo
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- CN212364346U CN212364346U CN202021321616.6U CN202021321616U CN212364346U CN 212364346 U CN212364346 U CN 212364346U CN 202021321616 U CN202021321616 U CN 202021321616U CN 212364346 U CN212364346 U CN 212364346U
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Abstract
The utility model relates to an ultrasonic flow detection device and correlation flow sensing mechanism. The correlation flow sensing mechanism comprises: the pipe fitting comprises a first injection body and a second injection body, wherein the first injection body is provided with a first positioning part and a first injection part, the second injection body is provided with a second positioning part and a second injection part, the first positioning part and the second positioning part are both used for being installed on a pipe fitting, the first injection part and the second injection part can both extend into a flow passage of the pipe fitting, and the first injection part and the second injection part are in injection matching. The correlation flow sensing mechanism can realize the correlation signal transmission between the first correlation part and the second correlation part without the help of or installing a reflector plate, thereby leading the use of the correlation flow sensing mechanism to be more convenient.
Description
Technical Field
The utility model relates to an ultrasonic flowmeter's technical field especially relates to an ultrasonic sensor and correlation flow sensing mechanism.
Background
When measuring the speed to rivers, often can measure the speed with the help of ultrasonic flowmeter. At present, the traditional ultrasonic flowmeter needs to reflect signals by a probe core and a reflector plate so as to obtain the water velocity of a target area. Therefore, when the ultrasonic flowmeter is installed, the probe core and the reflector plate need to be installed respectively, so that the ultrasonic flowmeter is very inconvenient to use.
SUMMERY OF THE UTILITY MODEL
In view of this, it is necessary to provide a correlation flow rate sensing mechanism for solving the problem of inconvenience in use of the ultrasonic flow meter.
A correlation flow sensing mechanism. The correlation flow sensing mechanism comprises: the pipe fitting comprises a first injection body and a second injection body, wherein the first injection body is provided with a first positioning part and a first injection part, the second injection body is provided with a second positioning part and a second injection part, the first positioning part and the second positioning part are both used for being installed on a pipe fitting, the first injection part and the second injection part can both extend into a flow passage of the pipe fitting, and the first injection part and the second injection part are in injection matching.
In one embodiment, the first positioning portion is connected to the first injection portion, and the first positioning portion and the first injection portion are integrally formed, and the first positioning portion and the first injection portion are arranged at an included angle; the second positioning portion is connected with the second opposite-injection portion, the second positioning portion and the second opposite-injection portion are integrally formed, and the second positioning portion and the second opposite-injection portion are arranged at an included angle.
In one embodiment, the correlation flow sensing mechanism further comprises a first piezoelectric ceramic and a first ultrasonic emission surface, a first installation cavity is formed in the first correlation portion, the first piezoelectric ceramic is installed in the first installation cavity, the first ultrasonic emission surface is installed on the first correlation portion, the first ultrasonic emission surface covers the first installation cavity, and the first ultrasonic emission surface is in bonding fit with the first piezoelectric ceramic.
In one embodiment, the correlation flow sensing mechanism further includes a first mounting seat, a first fixing groove is formed in 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 space is reserved between a groove wall of the first fixing groove and the first piezoelectric ceramic, and a first buffer layer is additionally arranged on one surface of the first piezoelectric ceramic facing the bottom wall of the first fixing groove.
In one embodiment, the correlation flow sensing mechanism further comprises a first elastic piece, the first elastic piece is arranged in the first correlation portion, one surface of the first elastic piece is attached to the first mounting seat, and the other surface of the first elastic piece is attached to the surface, deviating from the first ultrasonic wave emitting surface, of the first correlation portion.
In one embodiment, correlation flow sensing mechanism still includes second piezoceramics and second ultrasonic emission face, the second installation cavity has been seted up on the second correlation portion, second piezoceramics is installed in the second installation cavity, second ultrasonic emission face is established on the second correlation portion, second ultrasonic emission face covers the second installation cavity, just second ultrasonic emission face with the cooperation of second piezoceramics bonding, work as first correlation portion with second correlation portion all stretches into back in the runner of pipe fitting, first ultrasonic emission face with second ultrasonic emission face sets up in opposite directions.
In one embodiment, the correlation flow sensing mechanism further includes a second mounting seat, a second fixing groove is formed in 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 space is reserved between a groove wall of the second fixing groove and the second piezoelectric ceramic, and a second buffer layer is additionally arranged on one surface of the second piezoelectric ceramic facing the bottom wall of the second fixing groove.
In one embodiment, the correlation flow sensing mechanism further comprises a second elastic piece, the second elastic piece is arranged in the second correlation portion, one surface of the second elastic piece is attached to the second mounting seat, and the other surface of the second elastic piece is attached to the surface, deviating from the second ultrasonic wave emitting surface, of the first correlation portion.
In one embodiment, the first positioning portion and the first mating portion form the first mating body, the second positioning portion and the second mating portion form the second mating body, and the inner spaces of the first mating body and the second mating body are filled with a sealing member.
When the correlation flow sensing mechanism is used, the sizes or models of the first correlation body and the second correlation body are determined according to the sizes of the pipe to be measured (such as the length of the pipe and the size of the pipe orifice of the pipe) so as to ensure the effective installation of the first correlation body and the second correlation body on the pipe. Then, when installing first correlation body and second correlation body on the pipe fitting, first correlation body carries out the coordination installation through the mounting hole that first configuration portion and the pipe wall of pipe fitting or reservation on the pipe fitting, and first correlation body has realized the fixed on the pipe fitting through first configuration portion promptly, and the first correlation portion on first correlation body just can be fixed in the runner of pipe fitting this moment. The second correlation body carries out the coordination installation through the mounting hole that reserves on the pipe wall of second counterpoint portion and pipe fitting or the pipe fitting, and the second correlation body has realized the fixed on the pipe fitting through the second coordination portion promptly, and the second correlation portion on the second correlation body just can be fixed in the runner of pipe fitting this moment. At this time, the first correlation portion and the second correlation portion can perform signal correlation in the pipe flow channel, different water flow velocities can affect the correlation signal formed between the first correlation portion and the second correlation portion, that is, the detection signal formed above can be processed by using the ultrasonic time difference method principle, so as to calculate the flow velocity of the water flow in the pipe. Compared with the traditional ultrasonic flow sensing mechanism (the ultrasonic probe and the reflector plate are required to be in reflection fit), the correlation flow sensing mechanism can realize the correlation signal transmission between the first correlation part and the second correlation part without the help of or installing the reflector plate, so that the correlation flow sensing mechanism is more convenient to use.
When the ultrasonic flow detection device is used, the correlation flow sensing mechanism is arranged on the mounting pipe fitting. At this time, the first correlation portion and the second correlation portion can perform signal correlation in the pipe flow channel, different water flow velocities can affect the correlation signal formed between the first correlation portion and the second correlation portion, that is, the detection signal formed above can be processed by using the ultrasonic time difference method principle, so as to calculate the flow velocity of the water flow in the pipe. Compared with the traditional ultrasonic flow sensing mechanism (the ultrasonic probe and the reflector plate are required to be in reflection fit), the correlation flow sensing mechanism can realize the correlation signal transmission between the first correlation part and the second correlation part without the help of or installing the reflector plate, so that the correlation flow sensing mechanism is more convenient to use.
Drawings
FIG. 1 is a schematic structural diagram of an ultrasonic flow detection device and a correlation flow sensing mechanism;
fig. 2 is a schematic structural view of a first correlation body according to an embodiment of the disclosure;
fig. 3 is a schematic structural view of a first correlation body according to another embodiment.
100. The ultrasonic wave transducer comprises a first correlation body, 110, a first positioning part, 120, a first correlation part, 130, a first piezoelectric ceramic, 140, a first ultrasonic wave emitting surface, 150, a first mounting seat, 160, a first buffering interval, 170, a first elastic part, 200, a second correlation body, 210, a second positioning part, 220, a second correlation part, 230, a second piezoelectric ceramic, 240, a second ultrasonic wave emitting surface, 250, a second mounting seat, 260, a second buffering interval, 270, a second elastic part, 300, a sealing part, 400 and a mounting pipe.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.
As shown in fig. 1-3, in one embodiment, a correlation flow sensing mechanism includes: the first and second injection bodies 100 and 200, the first injection body 100 has a first positioning portion 110 and a first injection portion 120, the second injection body 200 has a second positioning portion 210 and a second injection portion 220, the first positioning portion 110 and the second positioning portion 210 are both used for being mounted on a pipe, the first injection portion 120 and the second injection portion 220 can both extend into a flow channel of the pipe, and the first injection portion 120 and the second injection portion 220 are in injection fit.
When the correlation flow sensing mechanism is used, the sizes or models of the first correlation body 100 and the second correlation body 200 are determined according to the sizes of pipes to be measured (for example, the lengths of the pipes and the sizes of pipe orifices of the pipes), so as to ensure that the first correlation body 100 and the second correlation body 200 are effectively mounted on the pipes. Then, when the first and second correlation bodies 100 and 200 are installed on the pipe, the first correlation body 100 is matched and installed with the pipe wall of the pipe or the installation hole reserved on the pipe through the first positioning portion 110, that is, the first correlation body 100 is fixed on the pipe through the first positioning portion 110, and at this time, the first correlation portion 120 on the first correlation body 100 can be fixed in the flow channel of the pipe. The second correlation body 200 is installed in a coordination manner through the second positioning portion 210 and a mounting hole reserved on a pipe wall of a pipe or a pipe, that is, the second correlation body 200 is fixed on the pipe through the second positioning portion 210, and at this time, the second correlation portion 220 on the second correlation body 200 can be fixed in a flow passage of the pipe. At this time, the first correlation portion 120 and the second correlation portion 220 can perform signal correlation in the pipe flow channel, different flow rates of water flow affect the correlation signal formed between the first correlation portion 120 and the second correlation portion 220, that is, the detection signal formed above can be processed by using the ultrasonic time difference method, so as to calculate the flow rate of water flow in the pipe. Compared with the traditional ultrasonic flow sensing mechanism (the ultrasonic probe and the reflector plate are required to be in reflection fit), the correlation flow sensing mechanism can realize the correlation signal transmission between the first correlation part 120 and the second correlation part 220 without the help of or the installation of the reflector plate, so that the correlation flow sensing mechanism is more convenient to use.
In one embodiment, the correlation flow sensing mechanism further includes a processor or a central control board electrically connected to the first correlation body 100 and the second correlation body 200.
As shown in fig. 1, in one embodiment, the first positioning portion 110 is connected to the first mating portion 120, and the first positioning portion 110 and the first mating portion 120 are integrally formed, and the first positioning portion 110 and the first mating portion 120 are disposed at an angle; the second positioning portion 210 is connected to the second emitting portion 220, the second positioning portion 210 and the second emitting portion 220 are integrally formed, and the second positioning portion 210 and the second emitting portion 220 form an included angle. Specifically, the first positioning portion 110 and the second positioning portion 210 are both block bodies or plate bodies. The first and second opposite- injection portions 120 and 220 are both blocks or plates. By integrally molding the first positioning portion 110 and the first mating portion 120, and the second positioning portion 210 and the second mating portion 220. Thereby ensuring more convenient assembly of the first and second correlation bodies 100 and 200 on the pipe. Further, an included angle formed between the first positioning portion 110 and the first correlation portion 120 is 90 °, and an included angle formed between the second positioning portion 210 and the second correlation portion 220 is 90 °. The embodiment described above can ensure that the correlation signal between the first correlation unit 120 and the second correlation unit 220 can be propagated linearly, thereby improving the sensitivity of the first correlation body 100 and the second correlation body 200 for receiving the correlation signal, i.e., improving the overall detection accuracy of the correlation flow rate sensing mechanism.
As shown in fig. 2 and fig. 3, in an embodiment, the correlation flow sensing mechanism further includes a first piezoelectric ceramic 130 and a first ultrasonic emission surface 140, a first installation cavity is opened on the first correlation portion 120, the first piezoelectric ceramic 130 is installed in the first installation cavity, the first ultrasonic emission surface 140 is installed on the first correlation portion 120, the first ultrasonic emission surface 140 covers the first installation cavity, and the first ultrasonic emission surface 140 is bonded to the first piezoelectric ceramic 130. Correlation flow sensing mechanism still includes first mount pad 150, first fixed slot has been seted up on first mount pad 150, first mount pad 150 is installed in first installation intracavity, first piezoceramics 130 is installed in the first fixed slot, the cell wall of first fixed slot with leave first buffering interval 160 between first piezoceramics 130, first piezoceramics 130 orientation the one side of first fixed slot diapire adds and is equipped with first buffer layer. Specifically, a first mounting cavity may be directly formed on the first correlation portion 120 according to mounting requirements, so that the mounting of the first piezoelectric ceramic 130 on the first correlation portion 120 may be satisfied. When the first piezoelectric ceramic 130 is mounted, the first piezoelectric ceramic 130 may be mounted on the first mounting seat 150, and then the first mounting seat 150 and the first piezoelectric ceramic 130 are integrally mounted in the first mounting cavity. Above-mentioned mounting means can effectively avoid causing the damage to first piezoceramics 130's self structure in the installation on the one hand, and on the other hand realizes spacingly to first piezoceramics 130 through first mount pad 150 in first correlation portion 120 is inside to effectively avoid first piezoceramics 130 to appear the aversion phenomenon in first correlation portion 120. Further, the first ultrasonic wave emitting surface 140 and the first piezoelectric ceramic 130 may be bonded by glue or adhesive. Therefore, the alignment degree of the first ultrasonic wave emitting surface 140 and the first piezoelectric ceramic 130 is ensured, and the first ultrasonic wave emitting surface 140 and the first piezoelectric ceramic 130 are prevented from being dislocated. The first buffer layer may be a lightweight material (e.g., a foam material) or a damping material having a characteristic acoustic impedance. Namely, the first piezoelectric ceramic 130 is prevented from being damaged by the interference friction with the first mounting seat 150.
As shown in fig. 1 and 2, in an embodiment, the correlation flow sensing mechanism further includes a first elastic member 170, the first elastic member 170 is installed inside the first correlation portion 120, one surface of the first elastic member 170 is attached to the first mounting seat 150, and the other surface of the first elastic member 170 is attached to a surface of the first correlation portion 120 away from the first ultrasonic wave emitting surface 140. Specifically, the first elastic member 170 is an elastic pad or an elastic block. After the first elastic member 170 is installed inside the first opposite-injection portion 120, one surface of the first opposite-injection portion 120, which is away from the first ultrasonic wave emitting surface 140, may be impacted by water flow, and at this time, the first elastic member 170 may effectively neutralize the impact force applied to the first opposite-injection portion 120, thereby preventing the first opposite-injection portion 120 from being damaged.
Further, after the first mounting base 150 is installed in the first mounting cavity, the first elastic member 170 can provide a supporting force for the first mounting base 150, and meanwhile, the first piezoelectric ceramic 130 located on the first mounting base 150 can be attached to the first ultrasonic reflection surface more tightly under the action of the supporting force. Further, when the first elastic member 170 generates the corresponding elastic restoring force due to the impact force of the water flow, the elastic restoring force can act on the first mounting seat 150, at this time, the groove wall of the first fixing groove and the first piezoelectric ceramic 130 leave the first buffering space 160 therebetween, i.e., the bottom of the first mounting seat 150 is utilized under the effect of the elastic restoring force to perform the corresponding deformation of the first buffering space 160, and the groove wall of the first fixing groove is not affected by the force application of the elastic restoring force, so that the elastic restoring force generated by the first elastic member 170 is effectively prevented from colliding and damaging the first piezoelectric ceramic 130 mounted on the first mounting seat 150.
In an embodiment, a surface of the first correlation portion 120, which is away from the first ultrasonic wave emitting surface 140, may be designed to be an arc surface, that is, when water flows through the first correlation portion 120, the arc surface can effectively reduce blocking influence on the water flow, so that a flow velocity of the water flow obtained by the correlation flow sensing mechanism can be closer to an actual flow velocity of the water flow.
As shown in FIG. 1, in one embodiment, the correlation flow sensing mechanism further comprises a second piezoelectric ceramic 230 and a second ultrasonic emitting surface 240. A second installation cavity is formed in the second opposite-emitting portion 220, the second piezoelectric ceramics 230 is installed in the second installation cavity, the second ultrasonic emitting surface 240 is installed on the second opposite-emitting portion 220, the second ultrasonic emitting surface 240 covers the second installation cavity, the second ultrasonic emitting surface 240 is in bonding fit with the second piezoelectric ceramics 230, when the first opposite-emitting portion 120 and the second opposite-emitting portion 220 extend into the flow channel of the pipe, the first ultrasonic emitting surface 140 and the second ultrasonic emitting surface 240 are arranged oppositely. The correlation flow sensing mechanism further comprises a second mounting seat 250, a second fixing groove is formed in the second mounting seat 250, the second mounting seat 250 is installed in the second mounting cavity, the second piezoelectric ceramics 230 is installed in the second fixing groove, a second buffer interval 260 is reserved between the groove wall of the second fixing groove and the second piezoelectric ceramics 230, and a second buffer layer is additionally arranged on the side, facing the second fixing groove, of the second piezoelectric ceramics 230.
Specifically, a second mounting cavity may be directly formed on the second radiation portion 220 according to mounting requirements, so that the mounting of the second piezoelectric ceramic 230 on the second radiation portion 220 may be satisfied. When mounting the second piezoelectric ceramic 230, the second piezoelectric ceramic 230 may be mounted on the second mounting base 250, and then the second mounting base 250 and the second piezoelectric ceramic 230 are integrally mounted in the second mounting cavity. Above-mentioned mounting means can effectively avoid causing the damage to second piezoceramics 230's self structure in the installation on the one hand, and on the other hand passes through second mount pad 250 and realizes spacing to second piezoceramics 230 in second correlation portion 220 is inside to effectively avoid second piezoceramics 230 to appear the phenomenon of shifting in second correlation portion 220. Further, the second ultrasonic wave emitting surface 240 and the second piezoelectric ceramic 230 may be bonded by glue or adhesive. Therefore, the alignment degree of the second ultrasonic wave emitting surface 240 and the second piezoelectric ceramic 230 is ensured, and the second ultrasonic wave emitting surface 240 and the second piezoelectric ceramic 230 are prevented from being dislocated. The second buffer layer may be a lightweight material (e.g., a foam material) or a damping material having a characteristic acoustic impedance. Namely, the second piezoelectric ceramic 230 is prevented from being damaged by the interference friction with the second mounting seat 250.
As shown in fig. 1, in an embodiment, the correlation flow rate sensing mechanism further includes a second elastic member 270, the second elastic member 270 is installed inside the second correlation portion 220, one surface of the second elastic member 270 is attached to the second mounting seat 250, and the other surface of the second elastic member 270 is attached to a surface of the first correlation portion 120 departing from the second ultrasonic wave emitting surface 240. Specifically, the second elastic member 270 is an elastic pad or an elastic block. When the second elastic member 270 is installed inside the second opposite-emitting portion 220, one surface of the second opposite-emitting portion 220 departing from the second ultrasonic wave emitting surface 240 is impacted by water flow, and at this time, the second elastic member 270 can effectively neutralize the impact force applied to the second opposite-emitting portion 220, so that the second opposite-emitting portion 220 is prevented from being damaged. Further, after the second mounting base 250 is mounted in the second mounting cavity, the second elastic member 270 can provide a supporting force for the second mounting base 250, and meanwhile, the second piezoelectric ceramic 230 located on the second mounting base 250 can be attached to the second ultrasonic reflection surface more tightly under the action of the supporting force. Further, when the second elastic member 270 produces corresponding elasticity because the rivers impact force and resets and do all can, elasticity resets and can use on the second mount pad 250, at this moment, the cell wall of second fixed slot with leave second buffering interval 260 between the second mount pad 250, the bottom of second mount pad 250 utilizes under the effect of elasticity reset the second buffering interval 260 carries out corresponding deformation promptly, and the cell wall of second fixed slot can not receive the application of force influence of above-mentioned elasticity reset power this moment to the produced elasticity of second elastic member 270 has effectively been avoided and has been contradicted the damage to the second piezoceramics 230 of installing on the second mount pad 250 produced.
In an embodiment, a surface of the first correlation portion 120, which is away from the first ultrasonic wave emitting surface 140, may be designed to be an arc surface, that is, when water flows through the first correlation portion 120, the arc surface can effectively reduce blocking influence on the water flow, so that a flow velocity of the water flow obtained by the correlation flow sensing mechanism can be closer to an actual flow velocity of the water flow. This is just one example of an embodiment, for example: the angle of the first emitting portion 120 relative to the water flow (horizontal plane) and the angle of the second emitting portion 220 relative to the water flow can be adjusted according to the water flow.
As shown in fig. 1 to 3, in one embodiment, the first positioning portion 110 and the first mating portion 120 form the first mating body 100, the second positioning portion 210 and the second mating portion 220 form the second mating body 200, and the inner spaces of the first mating body 100 and the second mating body 200 are filled with a sealing member 300. Specifically, the sealing member 300 is a potting adhesive or a sealant. The sealing member 300 is additionally disposed inside the first and second correlation bodies 100 and 200, so that the first and second correlation bodies 100 and 200 are waterproof and dustproof.
In one embodiment, as shown in fig. 1, an ultrasonic flow detection device comprises the correlation flow sensing mechanism of any one of the above embodiments, and further comprises a mounting tube 400, wherein the correlation flow sensing mechanism is mounted on the mounting tube 400.
When the ultrasonic flow rate detection device is used, the correlation flow rate sensing means is mounted on the mounting pipe 400. At this time, the first correlation portion 120 and the second correlation portion 220 can perform signal correlation in the pipe flow channel, different flow rates of water flow affect the correlation signal formed between the first correlation portion 120 and the second correlation portion 220, that is, the detection signal formed above can be processed by using the ultrasonic time difference method, so as to calculate the flow rate of water flow in the pipe. Compared with the traditional ultrasonic flow sensing mechanism (the ultrasonic probe and the reflector plate are required to be in reflection fit), the correlation flow sensing mechanism can realize the correlation signal transmission between the first correlation part 120 and the second correlation part 220 without the help of or the installation of the reflector plate, so that the correlation flow sensing mechanism is more convenient to use.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.
Claims (10)
1. A correlation flow sensing mechanism, comprising: the pipe fitting comprises a first injection body and a second injection body, wherein the first injection body is provided with a first positioning part and a first injection part, the second injection body is provided with a second positioning part and a second injection part, the first positioning part and the second positioning part are both used for being installed on a pipe fitting, the first injection part and the second injection part can both extend into a flow passage of the pipe fitting, and the first injection part and the second injection part are in injection matching.
2. The correlation flow sensing mechanism of claim 1, wherein the first positioning portion is connected to the first correlation portion and is integrally formed with the first correlation portion, and the first positioning portion is disposed at an angle to the first correlation portion; the second positioning portion is connected with the second opposite-injection portion, the second positioning portion and the second opposite-injection portion are integrally formed, and the second positioning portion and the second opposite-injection portion are arranged at an included angle.
3. The correlation flow sensing mechanism according to claim 1, further comprising a first piezoelectric ceramic and a first ultrasonic emitting surface, wherein the first correlation portion is provided with a first mounting cavity, the first piezoelectric ceramic is mounted in the first mounting cavity, the first ultrasonic emitting surface is mounted on the first correlation portion, the first ultrasonic emitting surface covers the first mounting cavity, and the first ultrasonic emitting surface is bonded and matched with the first piezoelectric ceramic.
4. The correlation flow sensing mechanism according to claim 3, further comprising a first mounting seat, wherein a first fixing groove is formed in 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 space is reserved between a groove wall of the first fixing groove and the first piezoelectric ceramic, and a first buffer layer is additionally disposed on a surface of the first piezoelectric ceramic facing the bottom wall of the first fixing groove.
5. The correlation flow sensing mechanism according to claim 4, further comprising a first elastic member, wherein the first elastic member is installed inside the first correlation portion, one surface of the first elastic member is attached to the first installation seat, and the other surface of the first elastic member is attached to a surface of the first correlation portion, which is away from the first ultrasonic wave emitting surface.
6. The correlation flow sensing mechanism according to claim 3, further comprising a second piezoelectric ceramic and a second ultrasonic emission surface, wherein a second mounting cavity is formed in the second correlation portion, the second piezoelectric ceramic is mounted in the second mounting cavity, the second ultrasonic emission surface is mounted on the second correlation portion, the second ultrasonic emission surface covers the second mounting cavity, and the second ultrasonic emission surface is in bonding fit with the second piezoelectric ceramic, and when the first correlation portion and the second correlation portion both extend into the flow channel of the pipe, the first ultrasonic emission surface and the second ultrasonic emission surface are arranged in opposite directions.
7. The correlation flow sensing mechanism according to claim 6, further comprising a second mounting base, wherein a second fixing groove is formed in the second mounting base, the second mounting base is installed in the second mounting cavity, the second piezoelectric ceramic is installed in the second fixing groove, a second buffer space is reserved between a groove wall of the second fixing groove and the second piezoelectric ceramic, and a second buffer layer is additionally disposed on a surface of the second piezoelectric ceramic facing the bottom wall of the second fixing groove.
8. The correlation flow sensing mechanism according to claim 7, further comprising a second elastic member, wherein the second elastic member is installed inside the second correlation portion, one surface of the second elastic member is attached to the second mounting seat, and the other surface of the second elastic member is attached to a surface of the first correlation portion, which is away from the second ultrasonic wave emitting surface.
9. The correlation flow sensing mechanism according to any one of claims 1 to 8, wherein the first positioning portion and the first correlation portion form the first correlation body, the second positioning portion and the second correlation portion form the second correlation body, and inner spaces of the first correlation body and the second correlation body are filled with a sealing member.
10. An ultrasonic flow detection device comprising the correlation flow sensing mechanism of any one of claims 1 to 9, and further comprising a mounting pipe on which the correlation flow sensing mechanism is mounted.
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| CN202021321616.6U CN212364346U (en) | 2020-07-08 | 2020-07-08 | Ultrasonic flow detection device and correlation flow sensing mechanism |
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| CN202021321616.6U CN212364346U (en) | 2020-07-08 | 2020-07-08 | Ultrasonic flow detection device and correlation flow sensing mechanism |
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