Circular ring buckle type photoelectric water flow sensor

Abstract

The utility model relates to a circular ring buckle type photoelectric water flow sensor, which comprises a water passing pipe provided with a cylinder; a support groove is formed in the cylinder, and a clamping ring extending in the circumferential direction is arranged on the outer side of the cylinder. The cylinder support is located in the support groove, and a circuit board assembly is arranged in the cylinder support; the circular ring buckle is connected with the clamping ring in a clamped mode and limits the cylindrical support in the support groove in an abutting mode. The circular ring buckle is fixed to the outer side of the cylinder, meanwhile, the circular ring buckle abuts against and limits the cylinder support in the support groove, and a common screw fixing mode is replaced, so that more reliable fixing can be achieved, and the problem that the sealing performance is poor due to the fact that screws are used for a long time can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of flow detection equipment, in particular to a circular buckle type photoelectric water flow sensor. Background Art

[0002] The water flow sensor is an indispensable key component of the water heater. The water flow sensor has a rotor type, a turbine type, and a vortex tube type. The principle is that the water flow drives the magnetic rotor to rotate, and the Hall sensor senses the magnetic signal of the rotor and outputs a standard square wave signal. The water flow sensor outputs a pulse signal, current or voltage signal by sensing the water flow. The output of this signal is in a certain linear proportion to the water flow, and there are corresponding conversion formulas and image curves, so it can be used for water control management and flow calculation.

[0003] In the prior art, some similar photoelectric water flow sensors on the market use screws to fix and assemble the valve body and the circuit board assembly. After long-term use, the screws are easily corroded or loosened, and need to be promptly inspected and replaced, which increases labor costs and reduces efficiency. In addition, the screw assembly part cannot achieve the ideal effect of complete sealing, and there are inevitable sealing problems after long-term use. In addition, the impeller structure set in the existing photoelectric water flow sensor valve body is not ideal, and the output waveform has a relatively small duty cycle, and there is room for further improvement. Utility Model Content

[0004] The embodiment of the present application provides a circular clip-on photoelectric water flow sensor to solve the problem of poor sealing caused by screw assembly in the prior art.

[0005] Provided is a circular snap-on photoelectric water flow sensor, comprising: a water pipe, on which a cylinder is provided; a bracket groove is provided in the cylinder, and a circumferentially extending snap ring is provided on the outer side of the cylinder; a cylinder bracket is located in the bracket groove, and a circuit board assembly is provided in the cylinder bracket; a circular snap is snapped with the snap ring and holds the cylinder bracket in the bracket groove.

[0006] In some embodiments, a second ring is provided on the cylinder support, and a groove is provided on the second ring; a first protrusion for limiting the cylinder support is provided on the cylinder, and the first protrusion is located in the groove.

[0007] In some embodiments, the circular ring buckle includes a first circular ring, a handle is provided on the first circular ring, and a clamping portion is provided on the handle; the clamping portion is clamped with the clamping ring; the bottom surface of the first circular ring is attached to and abuts against the top surface of the second circular ring.

[0008] In some embodiments, the outer circle of the locking ring is provided with a second protrusion that resists against the limiting circular ring buckle.

[0009] In some embodiments, the two second protrusions are located at two ends of any diameter of the snap ring; and the cross-sectional widths of the two second protrusions gradually increase in a radially outward direction of the snap ring.

[0010] In some embodiments, a rotor is further included, the rotor includes a central axis, a rotating drum is arranged outside the central axis, a plurality of blades evenly spaced apart are arranged on the outer circumference of the rotating drum, and a connecting protrusion is arranged between two adjacent blades.

[0011] In some embodiments, a through hole connected to the internal channel of the water pipe is provided on the wall surface where the bracket groove and the end of the cylindrical bracket are abutted; a sealing plate is provided at the end of the cylindrical bracket close to the through hole, and the sealing plate has a hemispherical receiving groove; the through hole and the hemispherical receiving groove form a rotating space, and a rotor is rotatably connected in the rotating space.

[0012] In some embodiments, an end surface of the cylindrical support close to the through hole is a plane, an axis groove is provided on the plane, and the central axis of the rotor is provided in the axis groove.

[0013] In some embodiments, two spaced-apart tube grooves are provided at one end of the cylindrical bracket close to the through hole, and a photoelectric signal generating component is provided in the tube groove; the cylindrical bracket is made of transparent material and is transparent; the rotor cuts the optical signal generated by the photoelectric signal generating component; and the circuit board component is signal-connected to the photoelectric signal generating component.

[0014] In some embodiments, a sealing groove is provided on the circumference of the cylindrical bracket; a sealing ring is provided in the sealing groove and is sealedly connected to the bracket groove.

[0015] The beneficial effects of the technical solution provided by this application include:

[0016] The embodiment of the present application provides a circular clip-on photoelectric water flow sensor, in which the cylinder bracket and the cylinder of the water pipe are fixedly assembled by means of a circular clip, and the circular clip is clipped to the snap ring on the outside of the cylinder, so that the circular clip is cleverly fixed to the outside of the cylinder. At the same time, the circular clip supports the cylinder bracket to limit its position in the bracket groove, replacing the common screw fixing method, thereby achieving more reliable fixation and avoiding the problem of poor sealing of the screws due to long-term use, which affects the normal operation of the circuit board assembly in the cylinder bracket, and also avoids the regular inspection and replacement of corroded or loose screws, thereby improving efficiency and reducing labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 A first stereoscopic diagram of a circular snap-on photoelectric water flow sensor provided in an embodiment of the present application;

[0019] Figure 2 A schematic cross-sectional structure diagram of a circular snap-on photoelectric water flow sensor provided in an embodiment of the present application;

[0020] Figure 3 A second stereoscopic view of the circular snap-on photoelectric water flow sensor provided in an embodiment of the present application;

[0021] Figure 4 A third stereoscopic view of the circular snap-on photoelectric water flow sensor provided in an embodiment of the present application;

[0022] Figure 5 A three-dimensional diagram of a rotor provided in an embodiment of the present application;

[0023] Figure 6 A three-dimensional diagram of the ring buckle provided in an embodiment of the present application.

[0024] In the figure: 1, water pipe; 2, circular ring buckle; 201, circular ring; 202, handle; 203, snap-fitting part; 3, cylindrical bracket; 301, second circular ring; 302, groove position; 4, cylinder; 401, first protrusion; 402 second protrusion; 403, snap-fitting ring; 404, through hole; 5, hemispherical receiving groove; 6, rotor; 601, central axis; 602, rotating drum; 603, blades; 604, raised block; 7, photoelectric signal generating assembly; 8, sealing ring; 9, circuit board assembly. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0026] The embodiment of the present application provides a circular clip-on photoelectric water flow sensor, which can solve the problem of poor sealing caused by screw assembly in the prior art.

[0027] Since, on the one hand, the photoelectric water flow sensor is in a humid environment and it is inconvenient to use screws to assemble and fix it, and on the other hand, the screw installation and removal process is cumbersome and easy to damage, resulting in high labor and time costs and water seepage affecting the normal operation of the circuit board assembly, then another assembly and fixing method is used. A suitable clip is used to support and limit the cylindrical bracket 3 on which the circuit board assembly 9 is installed in the bracket groove of the cylinder 4 from the outside without affecting the normal operation of the circuit board assembly 9, so as to solve the sealing and other problems caused by the screw assembly.

[0028] Please refer to Figure 1-6 A circular snap-on photoelectric water flow sensor comprises: a water pipe 1, on which a cylinder 4 is provided, a bracket groove is provided in the cylinder 4, and a circumferentially extending snap ring 403 is provided on the outer side; a cylinder bracket 3 is located in the bracket groove, and a circuit board assembly 9 is provided in the cylinder bracket 3; a circular snap 2 is snapped with the snap ring 403, and the cylinder bracket 3 is supported and limited in the bracket groove.

[0029] The cylinder 4 is installed on the water pipe 1, and a bracket groove is provided inside the cylinder 4, and a circumferentially extending snap ring 403 is provided on the outside. The cylinder bracket 3 is located in the bracket groove, and the circuit board assembly 9 is placed inside. The circular ring buckle 2 is connected to the snap ring 403 on the cylinder 4 to fix the cylinder bracket 3 in the bracket groove. This design scheme utilizes the structural advantages of the cylinder 4 and the circular ring buckle 2 to achieve a stable connection between the bracket groove and the cylinder bracket 3, ensuring the fixation and support of the circuit board assembly 9. In addition, the design of the circular ring buckle 2 can simplify the assembly process, replace the screw assembly, and solve the problems of insufficient tightening, loose or damaged screws, and inconvenient installation and maintenance.

[0030] In some preferred embodiments, the cylinder bracket 3 is provided with a second ring 301, and the second ring 301 is provided with a groove position 302; the cylinder 4 is provided with a first protrusion 401 for limiting the cylinder bracket 3, and the first protrusion 401 is located at the groove position 302. By providing the groove position 302 on the second ring 301 of the cylinder bracket 3 and providing the first protrusion 401 at the corresponding position of the cylinder 4, the cylinder bracket 3 can be fixed in the bracket groove, and the cylinder bracket 3 can be limited and resisted to prevent it from rotating or deflecting, thereby further strengthening the fixation of the cylinder bracket 3.

[0031] In some preferred embodiments, the ring buckle 2 includes a first ring 201, a handle 202 is provided on the first ring 201, and a clamping portion 203 is provided on the handle 202; the clamping portion 203 is clamped with the clamping ring 403; the bottom surface of the first ring 201 is in contact with and abuts against the top surface of the second ring 301. By providing the handle 202 on the ring buckle 2, it is convenient to disassemble and install the ring buckle 2, and by providing the clamping portion 203 on the handle 202, the ring buckle 2 can be more closely clamped and fixed with the cylinder 4. Secondly, the second ring 301 of the cylinder bracket 3 is set to be a ring shape that matches the shape of the first ring 201 of the ring buckle 2, so that the ring buckle 2 can be more reliable and more closely abutted against the cylinder bracket 3.

[0032] In some preferred embodiments, the outer circle of the snap ring 403 is provided with a second protrusion 402 for resisting the limiting circular snap ring 2. The purpose of such design is that after the circular snap ring 2 is snapped and fixed with the cylinder 4, the second protrusion 402 can interact with the snapping part 203 of the circular snap ring 2 to play a role of limiting and fixing, preventing the circular snap ring 2 from rotating or dislocating, further enhancing the safety and stability of the circular snap ring 2, and ensuring that the circular snap ring 2 can be reliably fixed to the outer circumference of the cylinder 4 during use.

[0033] In some preferred embodiments, the two second protrusions 402 are located at either end of the diameter of the snap ring 403; the cross-sectional width of the two second protrusions 402 gradually increases radially outward from the snap ring 403. With this design, the side of the second protrusion 402 that abuts against the limiting circular ring buckle 2 is not perpendicular to the tangent line of the intersection of the snap ring 403, forming a certain angle, so that it can better interact with the circular ring buckle 2, so that the circular ring buckle 2 is more firmly and reliably limited at the target position.

[0034] In some preferred embodiments, a rotor 6 is also included, the rotor includes a central axis 601, a rotating drum 602 is provided outside the central axis 601, and a plurality of blades 603 are evenly spaced on the outer circumferential direction of the rotating drum 602; a connecting protrusion 604 is provided between two adjacent blades 603. The rotor 6 is an important component in the entire device, and its structural design can effectively affect the performance of the photoelectric water flow sensor. The structure of the rotor 6 includes a central axis 601 and a rotating drum 602, the central axis 601 is used to support the structure of the entire rotor 6, and the rotating drum 602 is responsible for carrying the blades 603 and rotating. It should be noted that the setting of the protrusion 604 on the blade 603 is also a highlight of the present application. For the rotor 6 without the protrusion 604, the duty cycle of the output waveform of the improved rotor 6 with the protrusion 604 is increased by at least 10%, making the output signal more stable.

[0035] In some preferred embodiments, a through hole 404 communicating with the internal channel of the water pipe 1 is provided on the wall surface where the bracket groove and the end of the cylindrical bracket 3 abut against each other; a sealing plate is provided at the end of the cylindrical bracket 3 near the through hole 404, and the sealing plate has a hemispherical receiving groove 5; the through hole 404 and the hemispherical receiving groove 5 form a rotating space, and a rotor 6 is rotatably connected in the rotating space. Through this design, a through hole 404 communicating with the internal channel of the water pipe 1 is provided on the wall surface where the bracket groove and the end of the cylindrical bracket 3 abut against each other, so that the water flow inside the water pipe 1 can interact with the rotor 6 through the internal space. At the same time, a sealing plate is provided at the end of the cylindrical bracket 3 near the through hole 404, and the sealing plate has a hemispherical receiving groove 5. This design ensures that no water leakage occurs during the rotation process, and maintains the sealing of the system. The through hole 404 and the hemispherical receiving groove 5 form a rotating space, and a rotor 6 is rotatably connected in the rotating space. Such a design allows the rotor 6 to rotate under the action of water, thereby achieving normal operation of the device.

[0036] In some preferred embodiments, the end surface of the cylinder support 3 near the through hole 404 is a plane, and an axis groove is provided on the plane, and the central axis 601 of the rotor 6 is provided in the axis groove. This design can ensure that the central axis 601 of the rotor 6 is firmly placed inside the axis groove of the cylinder support 3, thereby ensuring the stability and balance of the rotor 6 during operation. Through the design of the axis groove, the swing and shaking of the rotor 6 during the rotation process can be effectively reduced to ensure the normal operation of the equipment.

[0037] In some preferred embodiments, the end of the cylindrical bracket 3 close to the through hole 404 is also provided with two spaced-apart tube grooves, and a photoelectric signal generating component 7 is provided in the tube groove; the cylindrical bracket 3 is made of transparent material and is transparent; the rotor 6 cuts the optical signal generated by the photoelectric signal generating component 7; and the circuit board component 9 is connected to the photoelectric signal generating component 7 by signal. First, the tube groove is provided at the end of the cylindrical bracket 3 close to the through hole 404, which can effectively fix the photoelectric signal generating component 7 and ensure that it is stably and reliably installed on the bracket, thereby improving the stability and reliability of the equipment. Secondly, the use of transparent materials to make the cylindrical bracket 3 can ensure that the optical signal emitted by the photoelectric signal generating component 7 in the cylindrical bracket 3 passes through the fluid in the rotating space and can finally be received by the photoelectric signal generating component 7 on the other side. When the fluid flow drives the rotor 6 to rotate, the blade 603 on the rotor 6 will cut off or block the optical signal emitted by the photoelectric signal generating component 7. When the blade 603 blocks the optical signal, the optical signal cannot be received, resulting in signal interruption; when the blade 603 leaves the blocking area, the optical signal is successfully received and the signal is restored. In this way, the frequency of interruption and recovery of the signal reception frequency is measured. The circuit board assembly 9 can process the optical signal output by the photoelectric signal generating assembly 7, which may include signal amplification, filtering, denoising and other operations to ensure the output signal quality and stability. The circuit board assembly 9 is responsible for outputting the processed signal, which is usually connected to a control system or data acquisition equipment to detect water flow in real time, record and analyze data, etc.

[0038] In some preferred embodiments, a sealing groove is provided on the circumference of the cylinder bracket 3; a sealing ring 8 is provided in the sealing groove and is sealed and connected to the bracket groove. This design plays an important role in practical applications. The setting of the sealing groove and the sealing ring 8 can effectively prevent external water vapor, dust and other impurities from entering the device, and plays a good sealing and protective role, which can protect the key components and circuits inside the device from interference and erosion by the external environment, and extend the service life of the device.

[0039] The beneficial effects brought by the utility model include:

[0040] On the one hand, the cylinder bracket 3 and the cylinder 4 of the water pipe 1 are fixedly assembled by the circular buckle 2, and the circular buckle 2 is clamped with the clamping ring 403 on the outside of the cylinder 4, so that the circular buckle 2 is cleverly fixed to the outside of the cylinder 4, and at the same time, the circular buckle 2 holds the cylinder bracket 3 in the bracket groove, so that the cylinder bracket 3 can be more reliably fixed in the bracket groove of the cylinder 4; on the other hand, the use of the circular buckle 2 replaces the common screw fixing method, and can avoid the problem of poor sealing of the screws due to long-term use, which affects the normal operation of the circuit board assembly 9 in the cylinder bracket 3, and also avoids the regular detection and replacement of corroded or loose screws, thereby improving efficiency and reducing labor costs. Thus, the sealing effect and reliable fixation of the device are enhanced.

[0041] In the description of the present application, it should be noted that the terms "upper", "lower", etc. 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 application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0042] It should be noted that, in this application, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0043] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A circular snap-on photoelectric water flow sensor, characterized in that: It includes: A water pipe (1) is provided with a cylinder (4); a support groove is provided inside the cylinder (4), and a circumferentially extending locking ring (403) is provided on the outer side of the cylinder; A cylindrical bracket (3), which is located in the bracket groove and has a circuit board assembly (9) arranged therein; The circular ring buckle (2) is engaged with the snap ring (403) and holds the cylindrical bracket (3) in place within the bracket groove.

2. The circular snap-on photoelectric water flow sensor according to claim 1, characterized in that: The cylindrical support (3) is provided with a second circular ring (301), and the second circular ring (301) is provided with a groove position (302); The cylinder (4) is provided with a first protrusion (401) for limiting the position of the cylinder bracket (3), and the first protrusion (401) is located in the groove position (302).

3. The circular snap-on photoelectric water flow sensor according to claim 2, characterized in that: The circular buckle (2) comprises a first circular ring (201), the first circular ring (201) is provided with a handle (202), and the handle (202) is provided with a locking portion (203); The clamping portion (203) is clamped with the clamping ring (403); The bottom surface of the first circular ring (201) is in contact with and abuts against the top surface of the second circular ring (301).

4. The circular snap-on photoelectric water flow sensor according to claim 3, characterized in that: The outer ring of the locking ring (403) is provided with a second protrusion (402) for resisting and limiting the circular buckle (2).

5. The circular snap-on photoelectric water flow sensor according to claim 4, characterized in that: The two second protrusions (402) are located at two ends of any diameter of the locking ring (403); The cross-sectional widths of the two second protrusions (402) gradually increase in a radially outward direction along the locking ring (403).

6. The circular snap-on photoelectric water flow sensor according to claim 1, characterized in that: It also includes a rotor (6), which includes a central shaft (601), a rotating drum (602) is arranged outside the central shaft (601), and a plurality of blades (603) evenly spaced apart are arranged on the outer circumference of the rotating drum (602); A connecting protrusion (604) is provided between two adjacent blades (603).

7. The circular snap-on photoelectric water flow sensor according to claim 6, characterized in that: A through hole (404) communicating with the internal channel of the water pipe (1) is provided on the wall surface where the support groove and the end of the cylindrical support (3) abut against each other; A sealing plate is provided at the end of the cylindrical support (3) close to the through hole (404), and the sealing plate has a hemispherical receiving groove (5); The through hole (404) and the hemispherical receiving groove (5) form a rotating space, and the rotor (6) is rotatably connected in the rotating space.

8. The circular snap-on photoelectric water flow sensor according to claim 7, characterized in that: The end surface of one end of the cylindrical support (3) close to the through hole (404) is a plane, an axis groove is provided on the plane, and the central axis (601) of the rotor (6) is arranged in the axis groove.

9. The circular snap-on photoelectric water flow sensor according to claim 7, characterized in that: The cylindrical support (3) is also provided with two spaced apart tube grooves at one end close to the through hole (404), and a photoelectric signal generating assembly (7) is provided in the tube grooves; The cylindrical support (3) is made of transparent material and is transparent; The rotor (6) cuts the optical signal generated by the photoelectric signal generating component (7); The circuit board component (9) is signal-connected to the photoelectric signal generating component (7).

10. The circular snap-on photoelectric water flow sensor according to claim 7, characterized in that: The cylindrical support (3) is provided with a sealing groove on its circumference; A sealing ring (8) is provided in the sealing groove and is sealingly connected to the bracket groove.

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