Electronic flowmeter for pipe fitting

Abstract

An electronic flowmeter used on a pipe fitting comprises the pipe fitting and a shell arranged on the pipe fitting, and an arc-shaped enclasping plate is arranged on the side wall of the rear side of the shell. A C-shaped holding groove is defined by the inner wall of the holding plate and the side wall of the rear side of the shell. The pipe fitting penetrates through the holding groove, and the outer wall of the pipe fitting is attached to the inner wall of the holding groove. The width of a right notch of the holding groove is smaller than the diameter of the holding groove; and the right end of the holding plate extends towards the right rear part to form a guide plate. According to the electronic flow meter used on the pipe fitting, the electronic flow meter can be fixed without machining any hole in the pipe fitting, the stability of the electronic flow meter is effectively guaranteed, meanwhile, the situation that the pipe fitting is prone to being broken due to the fact that the hole is machined in the pipe fitting with the thin wall thickness is avoided, and the disassembly and assembly efficiency can be effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to an electronic flow meter, in particular to an electronic flow meter used on a pipe fitting. Background Art

[0002] An electronic flow meter is an inductive instrument that uses electromagnetic induction to calculate flow. The electronic flow meter has a Hall element and a magnet. The magnet is directly installed and fixed in the pipe for the flow of fluid, and the Hall element is set in the electronic flow meter. When the fluid flows through the pipe, a magnetic field is generated. At this time, the Hall element is perpendicular to the magnetic field. The measured Hall voltage difference is proportional to the flow rate of the fluid. Then the Hall voltage difference is converted into an actual flow value through the circuit board in the electronic flow meter and displayed on the display screen of the electronic flow meter.

[0003] When traditional electronic flow meters are fixed on pipe fittings, screw holes need to be processed on the pipe fittings, and the electronic flow meter is directly screwed to the pipe fittings, or the electronic flow meter is fixed to the pipe fittings by screws. This fixing method needs to take into account the wall thickness of the pipe fittings. When the wall thickness of the pipe fittings is thin, only screw holes with a smaller depth can be processed on the surface of the pipe fittings. When the screw holes are not deep enough, the stability of the electronic flow meter when fixed on the pipe fittings cannot be guaranteed, and the presence of screw holes will cause weak points in the pipe fittings. If high-pressure fluid is transported for a long time, the position where the screw holes are processed on the pipe fittings is very likely to break. When rotating the electronic flow meter or the screws, multiple turns are required, which consumes a lot of time and limits the efficiency of disassembly and assembly. Summary of the invention

[0004] The utility model aims to solve the existing technical problem and provide an electronic flow meter for use on pipe fittings. It does not need to process any holes on the pipe fittings to achieve the fixation of the electronic flow meter, effectively ensuring the stability of the electronic flow meter while avoiding the situation in which processing holes on pipe fittings with thinner walls may easily lead to pipe rupture, and can effectively ensure the efficiency of disassembly and assembly.

[0005] The technical solution adopted by the utility model to solve the above technical problems is:

[0006] The utility model discloses an electronic flow meter for pipe fittings, comprising a pipe fitting and a shell arranged on the pipe fitting, wherein the rear side wall of the shell is provided with an arc-shaped clamping plate; the inner wall of the clamping plate and the rear side wall of the shell are combined to form a C-shaped clamping groove; the pipe fitting passes through the clamping groove, and the outer wall of the pipe fitting fits with the inner wall of the clamping groove; the width of the notch on the right side of the clamping groove is smaller than the diameter of the clamping groove; a guide plate extends from the right end of the clamping plate toward the right rear.

[0007] A battery seat is extended backward from the left end of the shell; an auxiliary angle is formed between the tangent line of the outer wall of the clamping plate and the right side wall of the battery seat.

[0008] The front side wall of the shell is provided with an opening that penetrates its internal space; the left part of the rear inner wall of the shell is provided with a battery slot located in the battery holder; the front side wall of the shell is provided with an end cover that matches it, and the end cover covers and seals the opening; the end cover is made of transparent material; the rear side wall of the end cover is provided with a circuit board that matches it; the front side wall of the circuit board is provided with a display screen and a plurality of function keys that match it; the end cover is provided with a plurality of key holes that match the function keys; the left part of the rear side wall of the circuit board is provided with a battery mounting shell that matches the battery slot; a battery that matches it is mounted on the battery mounting shell; the rear side wall of the end cover is provided with a limiting portion embedded in the opening, and the outer wall of the limiting portion fits with the inner wall of the opening.

[0009] The side walls on the left and right sides of the end cover are provided with force applying ears which are symmetrical to each other.

[0010] The limiting portion is in a U-shape; one side of the limiting portion is provided with an auxiliary notch which is connected with the internal space thereof; and the circuit board is enclosed by the limiting portion.

[0011] The lower part of the circuit board is provided with a plurality of evenly distributed limiting holes; the rear side wall of the end cover is provided with a plurality of limiting rods matching the limiting holes; the upper side wall of the limiting part is provided with a plurality of evenly distributed limiting notches; the rear side wall of the end cover is provided with a plurality of limiting arms matching the limiting notches.

[0012] An auxiliary ear is arranged at the center of the end of the guide plate.

[0013] One end of the pipe is externally threadedly connected with an upper auxiliary nut matching with it, and the other end of the pipe is externally threadedly connected with a lower auxiliary nut matching with it; the shell is located between the upper auxiliary nut and the lower auxiliary nut.

[0014] The beneficial effects of the utility model are:

[0015] Compared with the prior art, the electronic flow meter for pipe fittings using the structure of the utility model only needs to squeeze the pipe fitting into the clamping groove to firmly fix the outer shell on the pipe fitting, thereby realizing the installation and fixation of the electronic flow meter. Then, the clamping plate only needs to be opened by the guide plate, so that the pipe fitting can be quickly moved out of the clamping groove by enlarging the clamping groove, thereby realizing the disassembly of the electronic flow meter. The entire disassembly and assembly process is extremely simple and can be completed in one action, effectively avoiding the situation where a lot of time is consumed in fixing the electronic flow meter by screwing, effectively ensuring the disassembly and assembly efficiency, and no holes are involved in the entire fixing process, which can effectively avoid the situation where processing holes on pipe fittings with thin wall thickness easily leads to pipe rupture. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional diagram of an electronic flow meter used on a pipe fitting according to the utility model at one angle;

[0017] Figure 2 It is a three-dimensional diagram of the electronic flow meter used on the pipe fitting of the utility model from another angle;

[0018] Figure 3 This is a structural schematic diagram of an electronic flow meter used on a pipe fitting according to the utility model at one angle;

[0019] Figure 4 This is a schematic structural diagram of the electronic flow meter used on a pipe fitting according to the utility model from another angle;

[0020] Figure 5 It is a stereoscopic diagram of the electronic flow meter used for pipe fittings of the utility model installed on the water distribution pipe of the water distributor. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0022] See also Figures 1 to 5 The utility model provides an electronic flow meter for a pipe fitting, comprising a pipe fitting 1, a shell 2 arranged on the pipe fitting 1, the rear side wall of the shell 2 is provided with an arc-shaped clamping plate 4; the inner wall of the clamping plate 4 and the rear side wall of the shell 2 are combined to form a C-shaped clamping groove 5; the pipe fitting 1 passes through the clamping groove 5, and the outer wall of the pipe fitting 1 fits with the inner wall of the clamping groove 5; the width of the notch on the right side of the clamping groove 5 is smaller than the diameter of the clamping groove 5; a guide plate 6 extends from the right end of the clamping plate 4 toward the right rear.

[0023] A battery holder 3 is extended backward from the left end of the housing 2 ; an auxiliary angle 7 is formed between the tangent line of the outer wall of the clamping plate 4 and the left side wall of the battery holder 3 .

[0024] The front side wall of the shell 2 is provided with an opening 8 that is connected with its internal space; the left part of the rear inner wall of the shell 2 is provided with a battery slot 9 located in the battery holder 3; the front side wall of the shell 2 is provided with an end cover 10 that matches it, and the end cover 10 shields and seals the opening 8; the end cover 10 is made of transparent material; the rear side wall of the end cover 10 is provided with a circuit board 11 that matches it; the front side wall of the circuit board 11 is provided with a display screen 12 and a plurality of function keys 13 that match it; the end cover 10 is provided with a plurality of key holes 14 that match the function keys 13; the left part of the rear side wall of the circuit board 11 is provided with a battery mounting shell 15 that matches the battery slot 9; the battery mounting shell 15 is installed with a battery 16 that matches it; the rear side wall of the end cover 10 is provided with a limiting portion 17 embedded in the opening 8, and the outer wall of the limiting portion 17 fits with the inner wall of the opening 8.

[0025] The left and right side walls of the end cover 10 are provided with force applying ears 18 which are symmetrical to each other.

[0026] The limiting portion 17 is in a U-shape; one side of the limiting portion 17 is provided with an auxiliary notch 19 which is in communication with the inner space thereof; the circuit board 11 is enclosed by the limiting portion 17 .

[0027] The lower part of the circuit board 11 is provided with a plurality of evenly distributed limiting holes 20; the rear side wall of the end cover 10 is provided with a plurality of limiting rods 21 matching the limiting holes 20; the upper side wall of the limiting portion 17 is provided with a plurality of evenly distributed limiting notches 22; the rear side wall of the end cover 10 is provided with a plurality of limiting arms 23 matching the limiting notches 22.

[0028] An auxiliary ear 26 is provided at the center of the end of the guide plate 6 .

[0029] One end of the pipe fitting 1 is externally threaded with an upper auxiliary nut 27 that matches it, and the other end of the pipe fitting 1 is externally threaded with a lower auxiliary nut 28 that matches it; the housing 2 is located between the upper auxiliary nut 27 and the lower auxiliary nut 28.

[0030] The method of using the utility model is as follows:

[0031] When it is necessary to install and fix the shell 2, it is only necessary to align the gap between the guide plate 6 and the rear side wall of the shell 2 with the pipe fitting 1 and move it closer to the pipe fitting. Since the right end of the guide plate 6 is inclined toward the rear, the distance between the guide plate 6 and the rear side wall of the shell 2 is greater than the outer diameter of the pipe fitting 1. The pipe fitting 1 can easily enter the gap between the guide plate 6 and the rear side wall of the shell 2, and can quickly enter the clamping groove 5 along the inclined surface of the front side of the guide plate 6. The diameter of the clamping groove 5 formed by the inner wall of the clamping plate 4 and the rear side wall of the shell 2 is smaller than the outer diameter of the pipe fitting 1. As the pipe fitting 1 enters the clamping groove 5, the pipe fitting 1 will squeeze the inner wall of the clamping plate 4 backwards through its own outer wall. When there is an auxiliary angle 7 between the tangent of the outer wall of the clamping plate 4 and the left side wall of the battery holder 3, the clamping plate 4 will deform backwards after being pressed. After deformation to a certain extent, the pipe 1 is completely squeezed into the clamping groove 5. As the clamping plate 4 deforms and generates elasticity, the elasticity that causes the clamping plate 4 to reset will form a clamping force, so that the inner wall of the clamping groove 5 can tightly clamp the pipe 1, thereby firmly fixing the shell 2 on the pipe 1. During the entire fixing process, no holes are involved, so there is no need to process holes on the outer wall of the pipe 1 to fix the electronic flow meter, which effectively avoids the situation where processing holes on the thinner-walled pipe 1 easily leads to the rupture of the pipe 1. When the electronic flow meter needs to be removed from the pipe 1, it is only necessary to temporarily deform the guide plate 6 backwards to temporarily increase the diameter of the clamping groove 5. At this time, the pipe 1 can be easily removed from the clamping groove 5. The entire disassembly process is extremely simple, which can effectively ensure the disassembly and assembly efficiency.

[0032] The front side wall of the shell 2 is provided with an opening 8 which is connected with its internal space, the left part of the rear inner wall of the shell 2 is provided with a battery slot 9 located in the battery holder 3, the front side wall of the shell 2 is provided with an end cover 10 which matches it, the end cover 10 shields and seals the opening 8, the end cover 10 is made of transparent material, the rear side wall of the end cover 10 is provided with a circuit board 11 which matches it, the front side wall of the circuit board 11 is provided with a display screen 12 which matches it and a plurality of function keys 13, the end cover 10 is provided with a plurality of button holes 14 which match the function keys 13, the left part of the rear side wall of the circuit board 11 is provided with a battery mounting shell 15 which matches the battery slot 9, and a battery 16 which matches it is mounted on the battery mounting shell 15.

[0033] A circuit board 11 matching the end cover 10 is provided on the rear side wall, a display screen 12 matching the end cover 11 and a plurality of function keys 13 are provided on the front side wall of the circuit board 11, and a plurality of button holes 14 matching the function keys 13 are provided on the end cover 10. When the end cover 10 is made of transparent material, the values ​​on the display screen 12 can be directly observed through the end cover 10, so that the user can clearly understand the real-time flow rate, and the existence of the function keys 13 makes it convenient for the user to open and close or set the values ​​according to actual needs.

[0034] A limiting portion 17 embedded in the opening 8 is provided on the rear side wall of the end cover 10, and the outer wall of the limiting portion 17 fits with the inner wall of the opening 8, and the end cover can be effectively fixed to the front side of the shell 2 through the friction between the outer wall of the limiting portion 17 and the inner wall of the opening 8. When the shell 2 needs to be removed, it is only necessary to pull the end cover 10 forward, and a battery mounting shell 15 matching the battery slot 9 is provided on the left part of the rear side wall of the circuit board 11, and a battery 16 matching it is installed on the battery mounting shell 15. When the end cover 10 is pulled forward, the battery mounting shell 15 and the battery are pulled outward at the same time. This structural design facilitates battery replacement.

[0035] The left and right side walls of the end cover 10 are provided with symmetrical force-applying ears 18. The existence of the force-applying ears 18 makes it easy for the user to apply force to the end cover 10 and to pull the end cover 10 forward, thereby achieving rapid disassembly and assembly of the end cover 10 and rapid replacement of the battery 16.

[0036] The limiting portion 17 is in a mouth shape, and an auxiliary notch 19 that is connected to the internal space of the limiting portion 17 is provided on one side of the limiting portion 17. The circuit board 11 is enclosed by the limiting portion 17. During the actual use of the circuit board 11, there may be different lengths. The existence of the auxiliary notch 19 can provide a certain placement space when the length of the circuit board 11 is slightly longer, thereby facilitating the installation of more models of circuit boards 11.

[0037] A plurality of evenly distributed limiting holes 20 are provided at the lower part of the circuit board 11, a plurality of limiting rods 21 matching the limiting holes 20 are provided at the rear side wall of the end cover 10, a plurality of evenly distributed limiting notches 22 are provided at the upper side wall of the limiting portion 17, a plurality of limiting arms 23 matching the limiting notches 22 are provided at the rear side wall of the end cover 10, the existence of the limiting notches 22 can limit the limiting arms 23, and the existence of the limiting holes 20 can limit the limiting rods 21, thereby effectively limiting the position of the end cover 10. In actual use, it is only necessary to soften part of the rear side wall of the end cover 10 by high temperature, and then press the corresponding part of the front side wall of the circuit board 11 tightly against the softened part of the rear side wall of the end cover 10. After the rear side wall of the end cover 10 is cooled and solidified, the fixation between the end cover 10 and the circuit board 11 can be achieved. When the end cover 10 is disassembled, the circuit board 11 can be disassembled at the same time, which is convenient for the maintenance and replacement of the circuit board 11.

[0038] An auxiliary ear 26 is provided at the center of the end of the guide plate 6. The existence of the auxiliary ear 26 not only facilitates the application of force to the guide plate 6, but also can extend the force arm of the guide plate 6 to a certain extent, thereby making it easier to press the guide plate 6.

[0039] One end of the pipe fitting 1 is externally threadedly connected to an upper auxiliary nut 27 that matches it, and the other end of the pipe fitting 1 is externally threadedly connected to a lower auxiliary nut 28 that matches it. The outer shell 2 is located between the upper auxiliary nut 27 and the lower auxiliary nut 28. The upper auxiliary nut 27 and the lower auxiliary nut 28 can use the distance between the two to clamp the outer shell 2, thereby further improving the stability of the electronic flowmeter fixed on the pipe fitting 1, and further ensuring the stability of the electronic flowmeter when detecting flow.

[0040] The pipe fittings installed on the electronic flow meter of the utility model can be water pipes in the water delivery system or water distribution pipes 2901 on the water distributor 29. The electronic flow meter can be installed on different types of pipe fittings for flow detection according to actual needs. When the electronic flow meter is installed on the water distribution pipe 2901 of the water distributor 29, if the opening and closing hand wheel 2902 on the water distributor 29 is turned, the flow rate at the moment can be observed in real time through the display screen 12 on the electronic flow meter. Therefore, when inspecting the water distributor 29, it is possible to observe whether there is a problem with the value displayed on the display screen 12 of the electronic flow meter, so as to immediately determine which water distribution pipe 2901 on the water distributor 29 has a problem, without the need to inspect each water distribution pipe 2901, which can effectively reduce the inspection time and effectively improve the inspection efficiency.

Claims

1. An electronic flow meter for a pipe fitting, comprising a pipe fitting and a housing arranged on the pipe fitting, characterized in that: An arc-shaped clamping plate is provided on the rear side of the shell; the inner wall of the clamping plate and the rear side wall of the shell are combined to form a C-shaped clamping groove; the pipe passes through the clamping groove, and the outer wall of the pipe fits with the inner wall of the clamping groove; the width of the notch on the right side of the clamping groove is smaller than the diameter of the clamping groove; a guide plate extends from the right end of the clamping plate toward the right rear.

2. The electronic flow meter for pipe fittings according to claim 1, characterized in that: A battery seat is extended backward from the left end of the shell; an auxiliary angle is formed between the tangent line of the outer wall of the clamping plate and the right side wall of the battery seat.

3. The electronic flow meter for pipe fittings according to claim 2, characterized in that: The front side wall of the shell is provided with an opening that penetrates its internal space; the left part of the rear inner wall of the shell is provided with a battery slot located in the battery holder; the front side wall of the shell is provided with an end cover that matches it, and the end cover covers and seals the opening; the end cover is made of transparent material; the rear side wall of the end cover is provided with a circuit board that matches it; the front side wall of the circuit board is provided with a display screen and a plurality of function keys that match it; the end cover is provided with a plurality of key holes that match the function keys; the left part of the rear side wall of the circuit board is provided with a battery mounting shell that matches the battery slot; a battery that matches it is mounted on the battery mounting shell; the rear side wall of the end cover is provided with a limiting portion embedded in the opening, and the outer wall of the limiting portion fits with the inner wall of the opening.

4. The electronic flow meter for pipe fittings according to claim 3, characterized in that: The side walls on the left and right sides of the end cover are provided with force applying ears which are symmetrical to each other.

5. The electronic flow meter for pipe fittings according to claim 3, characterized in that: The limiting portion is in a U-shape; one side of the limiting portion is provided with an auxiliary notch which is in communication with the internal space thereof; and the circuit board is enclosed by the limiting portion.

6. The electronic flow meter for pipe fittings according to claim 5, characterized in that: The lower part of the circuit board is provided with a plurality of evenly distributed limiting holes; the rear side wall of the end cover is provided with a plurality of limiting rods matching the limiting holes; the upper side wall of the limiting part is provided with a plurality of evenly distributed limiting notches; the rear side wall of the end cover is provided with a plurality of limiting arms matching the limiting notches.

7. The electronic flow meter for pipe fittings according to claim 3, characterized in that: An auxiliary ear is arranged at the center of the end of the guide plate.

8. The electronic flow meter for pipe fittings according to claim 1, characterized in that: One end of the pipe is externally threadedly connected with an upper auxiliary nut matching with it, and the other end of the pipe is externally threadedly connected with a lower auxiliary nut matching with it; the shell is located between the upper auxiliary nut and the lower auxiliary nut.

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