Anti-turbulence reflector support convenient to install

Abstract

The utility model discloses an anti-turbulence reflector support convenient to install, which comprises an upper reflector support, an upper reflector lens, a lower reflector support, a left lower reflector lens and a right lower reflector lens, and the reflector lenses and the reflector support are integrally formed by injection molding. The reflector bracket is simple to mount, firm and reliable to fix and capable of bearing impact of forward and reverse fluids; the water-drop-shaped anti-turbulence column is arranged to replace a rectifier needing to be additionally installed, the rectification effect is good, and the influence on fluid metering is small; the reflecting mirror is embedded into the surface of the reflecting mirror bracket, so that the reflecting performance is ensured, and the pressure loss is reduced at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of ultrasonic water meters, in particular to an anti-disturbance reflector bracket which is easy to install. Background Art

[0002] At present, most of the reflector brackets of traditional ultrasonic water meters are fixed by bolts or pins. For example, in utility model CN210071023U, "an integrated reflector bracket for ultrasonic water meters", a blind positioning hole is set in the middle of the reflector bracket. After the reflector bracket is installed in place, the positioning pin is inserted from the fixing hole on the water meter shell for fixing. The disadvantages of this method are: the fluid pipeline is directly connected to the inside of the water meter, and additional sealing measures are required for sealing. After the sealing ring or sealant ages, the possibility of the fluid directly entering the inside of the water meter is high, and this installation method increases the number of parts of the reflector bracket, increasing the difficulty and cost of assembly.

[0003] The measurement accuracy of ultrasonic water meters is affected by the stability of the fluid. The curved pipes and valve opening and closing upstream and downstream of the ultrasonic wave will cause fluid disturbance, thus affecting the measurement accuracy. At present, the main method used in the market is to install a rectifier in front of the pipe to reduce the turbulence upstream and downstream. This method leads to an increase in the number of parts, an increase in pressure loss, and an increase in interference with fluid measurement.

[0004] In general, the current reflector bracket of ultrasonic water meter has the following disadvantages:

[0005] 1. The reflector bracket is fixed by bolts or pins, which is complex in process, requires additional sealing measures, and has the risk of leakage;

[0006] 2. Install a rectifier to reduce the adverse effects of front and rear turbulence. There are many parts, large pressure loss, and great interference to measurement; Utility Model Content

[0007] In view of this, the utility model provides an anti-spoiler reflector bracket that is easy to install. It adopts an integrated injection molding method to integrate reflection, spoiler and installation functions, reduce the number of parts, reduce production costs, and also simplify the installation steps, reduce pressure loss, and enhance the rectification effect.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] The invention discloses an anti-spoiler reflector bracket which is easy to install, comprising an upper reflector bracket, an upper reflective lens, a lower reflector bracket, a left lower reflective lens and a right lower reflective lens. The upper reflector bracket and the upper reflective lens are integrally injection-molded to form an upper reflector bracket main body, and the upper reflective lens is located in the middle of the upper reflector bracket; the lower reflector bracket, the left lower reflective lens and the right lower reflective lens are integrally injection-molded to form a lower reflector bracket main body, and the left lower reflective lens and the right lower reflective lens are respectively located on both sides of the lower reflector bracket.

[0010] Preferably, the upper reflector bracket is provided with a buckle, and the lower reflector bracket is provided with a buckle groove corresponding to the buckle of the upper reflector bracket.

[0011] Preferably, after the upper reflector bracket and the lower reflector bracket are buckled up and down, reflector bracket bosses are formed on both sides;

[0012] A groove corresponding to the boss is arranged in the water meter pipe, and the groove is opened from the water inlet of the water meter pipe to a designated position in the water meter pipe, and the height gradually decreases from left to right.

[0013] Preferably, a buckle is provided in the notch on the right side of the lower reflector bracket;

[0014] A pipeline anti-turbine column is arranged in the water meter pipeline, and the pipeline anti-turbine column is composed of a pipeline anti-turbine column buckle, an inclined surface on the pipeline anti-turbine column and a pipeline anti-turbine column body;

[0015] When the anti-spoiler reflector bracket that is easy to install is installed to a specified position, the notched buckle on the right side of the lower reflector bracket is buckled and fixed with the pipeline anti-spoiler column buckle.

[0016] Preferably, teardrop-shaped anti-spoiler columns are arranged at the front and rear of the lower reflector bracket, the teardrop-shaped anti-spoiler column located at the front is a complete body, and the teardrop-shaped anti-spoiler column located at the rear is a part of the complete body;

[0017] After the reflector bracket is installed in place, the teardrop-shaped anti-turbine column located at the rear and the pipeline anti-turbine column together form a complete teardrop-shaped anti-turbine column.

[0018] Preferably, the upper reflective lens is arranged on the surface of an upper reflective mirror support, and the lower reflective lens is arranged on the surface of a lower reflective mirror support.

[0019] Preferably, the water inlet and the water outlet of the upper reflector bracket adopt a curved surface transition, and the water inlet and the water outlet of the lower reflector bracket adopt a curved surface transition.

[0020] It can be seen from the above technical solution that the anti-spoiler reflector bracket that is easy to install provided by the utility model adopts an integrated injection molding method to integrally inject the upper reflector bracket and the upper reflective lens, and the lower reflector bracket and the lower reflective lens. The snap-fit ​​installation replaces the threaded or locating pin fixation, and the front and rear teardrop-shaped anti-spoiler columns are set to replace the rectifier that needs to be installed additionally. This not only simplifies the production and assembly process and reduces the production cost, but also avoids the possible water ingress problem. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 It is an exploded diagram of the structure of each part of the utility model;

[0023] Figure 2 It is an isometric drawing of the utility model;

[0024] Figure 3 It is the installation diagram of the utility model and the cross-sectional diagram of the water meter pipeline;

[0025] Figure 4 yes Figure 3 An enlarged upward view of a local position;

[0026] Figure 5 It is a top view of the pipeline anti-turbine column;

[0027] Figure 6 It is the side view of the pipeline anti-turbine column;

[0028] Figure 7 It is a cross-sectional view when the reflector bracket is installed in the specified position;

[0029] Figure 8 This is the fluid streamline diagram after adding the front right-hand spoiler;

[0030] Fig. 9 is the pressure distribution diagram of the reflector bracket;

[0031] Fig.10 This is a data comparison table of pressure loss and deviation rate between the utility model and the mainstream reflector bracket on the market;

[0032] Among them, 1 is an upper reflector bracket, 1.1 is a buckle, 1.2 is a positioning column, 1.3 is a notch of the upper left reflector bracket, 1.4 is a notch of the upper right reflector bracket, and 1.5 is a boss of the upper reflector bracket; 2 is an upper reflector lens; 3 is a lower reflector bracket, 3.1 is a buckle groove, 3.2 is a positioning column groove, 3.3 is a left anti-turbine column, 3.4 is a right anti-turbine column, 3.5 is a boss of the lower reflector bracket, 3.6 is a notch on the right side of the lower reflector bracket, and 3.7 is a buckle for the notch on the right side of the lower reflector bracket; 4 is a lower left reflector lens; 5 is a lower right reflector lens; 6 is a boss of the reflector bracket; 7 is a pipeline groove; 8 is a pipeline anti-turbine column, 8.1 is a pipeline anti-turbine column buckle, 8.2 is an inclined surface on the pipeline anti-turbine column, and 8.3 is a pipeline anti-turbine column body; 9 is a left transducer; and 10 is a right transducer. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] For the convenience of description, the directional nouns such as "up", "down", "left", and "right" mentioned in this article are Figure 1 With the orientation as a reference, the upper reflector bracket and the lower reflector bracket are buckled together and called the reflector bracket.

[0035] The anti-spoiler reflector bracket provided by the embodiment of the utility model is easy to install, such as Figure 1 As shown, it includes an upper reflector bracket 1, an upper reflector lens 2, a lower reflector bracket 3, a lower left reflector lens 4 and a lower right reflector lens 5. The upper reflector bracket 1 and the upper reflector lens 2 are integrally injection molded, and the lower reflector bracket 3 and the lower left reflector lens 4 and the lower right reflector lens 5 are integrally injection molded.

[0036] like Figure 1 As shown, the upper reflector bracket and the lower reflector bracket are buckled up and down, the buckle 1.1 is buckled into the buckle groove 3.1, and the positioning column 1.2 enters the positioning column groove 3.2. Since the widths of the positioning columns and the positioning column grooves on both sides of the reflector bracket are different, the buckling direction of the upper reflector bracket and the lower reflector bracket can be avoided.

[0037] like Figure 1As shown, an upper reflector bracket boss 1.5 is provided at the lower part of the upper reflector bracket 1, and a lower reflector bracket boss 3.5 is provided at the upper part of the lower reflector bracket 3. After the upper reflector bracket 1 and the lower reflector bracket 3 are buckled together, the upper reflector bracket boss 1.5 and the lower reflector bracket boss 3.5 together form a reflector bracket boss 6 (as shown in FIG. Figure 2 shown).

[0038] like Figure 3 As shown, when installing the reflector bracket, insert it from the left side of the water meter pipe. The reflector bracket boss 6 is inserted into the pipe groove 7 to achieve a guiding effect during installation. At the same time, due to the position limitation of the pipe groove 7, the upper reflector bracket 1 and the lower reflector bracket 3 are prevented from being disengaged. When the reflector bracket is installed to the specified position, the notch 3.6 on the right side of the lower reflector bracket (as shown in FIG. Figure 4 The left side of the pipeline anti-turbulence column 8.3 (as shown) Figure 5 The left side of the lower reflector bracket is in contact with the lower reflector bracket, and the notch on the right side of the lower reflector bracket is buckled 3.7 (as shown in Figure 4 as shown) and the pipeline anti-turbine column buckle 8.1 (as shown Figure 5 Snap together and secure.

[0039] like Figure 7 As shown, when the fluid flows from left to right through the pipeline, the left transducer 9 emits an ultrasonic sound beam vertically downward, passing through the gap 1.3 of the upper left reflector bracket (as shown in FIG. Figure 2 As shown in FIG. 1 , the light is incident on the lower left reflector 4, then reflected to the upper reflector 2, then reflected to the lower right reflector 5, and finally reflected through the gap 1.4 of the upper right reflector bracket (as shown in FIG. Figure 2 The sound beam is incident on the right transducer 10 and then in the opposite direction and the same path is repeated once. The actual flow rate of the fluid can be obtained by calculating the time difference between the two propagation of the sound beam.

[0040] like Figure 2 As shown, the reflector bracket is provided with a left anti-turbine column (3.3) and a right anti-turbine column (3.4) to replace the rectifier that needs to be installed additionally. In order to verify the performance of the water droplet-shaped anti-turbine column, a disturbance test simulation is carried out. The simulated pipe diameter is 25mm and the flow rate is 6.3m 3 / h, a spoiler is set 80mm in front of the reflector bracket, and the angle of the spoiler blade is 45°. Figure 8 We can see that after passing through the spoiler, the fluid flow direction is chaotic, and the flow velocity is about 1.7m / s. Due to the combined effect of the water droplet-shaped anti-turbine column and the necking, the fluid direction is stable. When it flows to the middle measuring section, the fluid flow velocity becomes 8.9m / s, and the flow condition is stable. Compared with the simulation data without the spoiler installed, the deviation rate of the flow velocity in the measuring section is less than 0.2%, which is 40% of the deviation rate of the mainstream ultrasonic water meter on the market (such as Fig.10 shown).

[0041] In order to verify the pressure loss caused by the fluid when flowing through the reflector bracket, the pressure loss simulation of the reflector bracket flow channel was carried out. The simulated pipeline diameter is 25mm and the flow rate is 6.3m 3 / h. Fig. 9 As shown in the figure, before entering the reflector bracket flow channel, the fluid pressure is about 13.3KPa, the minimum pressure appears at the narrowest middle measuring end, about -21.1KPa, and when the fluid reaches the reflector bracket outlet, the pressure is about -2.9KPa. The pressure loss of the fluid before and after flowing through the reflector bracket is about 16KPa. The simulation data shows that the pressure loss of the utility model is about 40% of the pressure loss of the mainstream ultrasonic water meter on the market (such as Fig.10 shown).

[0042] Advantages of the utility model:

[0043] 1. There are few assembly steps, simple installation, and a small number of parts. There is no need to use positioning pins and other fixing parts. You only need to buckle the upper reflector bracket and the lower reflector bracket up and down, and push them from one end of the pipe to the designated position under the guidance of the pipe groove, which saves labor, has low cost, and the assembly is firm and reliable, and can withstand the impact of forward and reverse water flow.

[0044] 2. Use an integrated water drop-shaped anti-disturbance column instead of a rectifier to rectify the working fluid, which has a good rectification effect and little interference with flow field measurement.

[0045] 3. While ensuring the reflection performance, it has little interference with the water flow and little pressure loss.

[0046] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features disclosed herein.

Claims

1. An anti-spoiler reflector bracket that is easy to install, comprising an upper reflector bracket (1), an upper reflector lens (2), a lower reflector bracket (3), a lower left reflector lens (4), and a lower right reflector lens (5), characterized in that: The upper reflector bracket (1) and the upper reflector lens (2) are integrally injection molded to form an upper reflector bracket main body, and the upper reflector lens (2) is located in the middle of the upper reflector bracket (1); the lower reflector bracket (3) and the lower left reflector lens (4) and the lower right reflector lens (5) are integrally injection molded to form a lower reflector bracket main body, and the lower left reflector lens (4) and the lower right reflector lens (5) are respectively located on both sides of the lower reflector bracket (3); the upper reflector bracket (1) and the lower reflector bracket (3) are fastened and fixed by means of a snap buckle (1.1); after the fastening, the upper reflector bracket boss (1.5) and the lower reflector bracket boss (3.5) together form a reflector bracket boss (6); and a water meter pipeline is provided with a pipeline groove (7) corresponding to the reflector bracket boss (6).

2. The anti-spoiler reflector bracket that is easy to install according to claim 1 is characterized in that: The lower reflector bracket (3) is provided with a notch buckle (3.7) on the right side of the lower reflector bracket; a pipeline anti-turbine column buckle (8.1) is provided in the water meter pipeline; when the reflector bracket is installed to a designated position, the notch buckle (3.7) on the right side of the lower reflector bracket is buckled and fixed with the pipeline anti-turbine column buckle (8.1).

3. The anti-spoiler reflector bracket that is easy to install according to claim 1 is characterized in that: The reflector bracket is provided with a left anti-turbine column (3.3) and a right anti-turbine column (3.4).

4. The anti-spoiler reflector bracket that is easy to install according to claim 1 is characterized in that: The reflector is embedded in the surface of the reflector bracket.

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