Built-in flow meter

Abstract

According to the built-in flow meter, in order to simplify the mode that a water inlet pipe of an existing built-in flow meter is installed through screws, a water inlet pipe and a water outlet pipe are connected together through a spiral buckle structure. Like the installation of a buckle-type electric bulb, the assembly process is simplified, the shape of the water inlet pipe is simplified, space is saved for transportation and storage, and production and processing are facilitated.

Description

Technical Field

[0001] The utility model discloses a built-in flow meter, which relates to the technical field of water treatment equipment and beverage machines, and in particular to the field of household water purifiers. Background Art

[0002] Built-in flow meter As the name suggests: see Figure 1 、 Figure 2 、 Figure 3 The flowmeter core is built into the water inlet and outlet pipes. This eliminates the need for a flowmeter housing, reducing its size and cost. The principle is as follows: water flows from the flowmeter's inlet pipe 1 into the flowmeter core 8 and then out through the outlet pipe. When water flows through the impeller 13, it rotates, which in turn drives the magnetic core 14. When the magnetic pole of the magnetic core 14 approaches the electromagnetic sensor 4 on the outlet pipe, it generates a pulse signal, thereby measuring the flow rate.

[0003] The existing built-in flow meter is Figure 6 、 Figure 7 As shown, the water inlet pipe 20 is fixed to the base plate 6 by screws through the screw holes 21 to prevent the water inlet pipe 20 from being separated from the water outlet pipe 22. This connection method using screws is inconvenient to install, requiring two more screws, which is inefficient. In addition, the structure of the water inlet pipe is complicated, and two more "ear" screw holes 21 are required for installing screws, resulting in the water inlet pipe taking up more space during transportation and storage. Summary of the Invention

[0004] The technical solution of the flowmeter of this utility model is as follows: to simplify the existing two-screw installation method of built-in flowmeters, the flowmeter core is first placed in the water outlet pipe, and then the water inlet and outlet pipes are connected together using a spiral buckle structure. The specific technical solution is: a built-in flowmeter, consisting of an inlet pipe, an outlet pipe, an electromagnetic sensor, and a flowmeter core. Water flows into the water inlet pipe of the built-in flowmeter, and when it flows into the flowmeter core, it drives the impeller inside the core to rotate, and then flows out through the outlet pipe; the rotation of the impeller drives the magnetic core on the impeller to rotate. When the magnetic pole of the magnetic core approaches the electromagnetic sensor, the electromagnetic sensor generates a pulse signal. The utility model is characterized in that the water inlet pipe and the water outlet pipe are connected using a spiral buckle, and the flowmeter core is arranged between the water inlet pipe and the outlet pipe.

[0005] The water inlet pipe is provided with screw threads, and the water outlet pipe is provided with a spiral slide and a screw buckle. When the water inlet pipe is connected to the water outlet pipe, the screw threads on the water inlet pipe follow the spiral slide on the water outlet pipe, engage and fall into the screw buckle window of the water inlet pipe screw buckle to form a tight combination.

[0006] The impeller of the flowmeter core is integrated with the magnetic core and the shaft. The cone heads at both ends of the shaft match with the cone holes on the core front shell and the core rear shell. The core front shell and the core rear shell adopt a transition fit assembly structure.

[0007] The water inlet pipe is provided with a groove, and a sealing ring is provided in the groove. When the water inlet pipe and the water outlet pipe are snap-connected, the sealing ring plays a sealing role between the water inlet pipe and the water outlet pipe.

[0008] The outlet pipe is provided with a tightening polygonal structure, and a wrench is used to tighten the polygon to realize the snap connection between the water inlet pipe and the water outlet pipe. The outlet end of the water inlet pipe is provided with a water outlet, which faces the flow meter core, and the diameter of the water outlet is the same as the water inlet diameter of the flow meter core.

[0009] Beneficial effects of the utility model:

[0010] 1) Simplify the assembly process, just like the installation of a snap-on light bulb.

[0011] 2) The shape of the water inlet pipe is simplified, and production and processing are convenient.

[0012] 3) The simplified shape of the water inlet pipe saves space in transportation and storage.

[0013] The above characteristics show that its beneficial effects are: reducing costs and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 Schematic diagram of the appearance structure of the flow meter of the utility model;

[0015] Figure 2 Utility model flow meter Figure 1 sectional view of

[0016] Figure 3 Cross-sectional view of the flow meter core of the utility model;

[0017] Figure 4 Schematic diagram of the appearance structure of the water outlet pipe of the flow meter of the utility model;

[0018] Figure 5 Schematic diagram of the external structure of the water inlet pipe of the flow meter of the utility model;

[0019] Figure 6 Schematic diagram of the external structure of the existing built-in flow meter;

[0020] Figure 7 Existing built-in flow meter Figure 6 Sectional view

[0021] In this utility model, the specification is attached Figure 1 To the attached Figure 7 Each number represents:

[0022] 1 Water inlet pipe, 2 Tightening polygon, 3 Water outlet pipe, 4 Electromagnetic sensor, 5 Screw hole, 6 Base plate, 7 Sealing ring, 8 Flowmeter core, 9 Screw thread, 10 Threaded buckle, 11 Core front housing, 12 Conical hole, 13 Impeller, 14 Magnetic core, 15 Core rear housing, 16 Conical hole, 17 Shaft, 18 Spiral slide, 19 Threaded buckle window, 20 Water inlet pipe, 21 Screw hole, 22 Water outlet pipe. DETAILED DESCRIPTION

[0023] The implementation examples of this utility model are detailed in Figures 1 to 5 : A built-in flow meter consists of an inlet pipe 1, an outlet pipe 3, an electromagnetic sensor 4, and a flow meter core 8. Water flows into the inlet pipe 1 of the built-in flow meter, and when it flows to the flow meter core 8, it drives the impeller 13 in the core to rotate, and then flows out through the outlet pipe 3; the rotation of the impeller 13 drives the magnetic core 14 on the impeller to rotate. When the magnetic pole of the magnetic core 14 approaches the electromagnetic sensor 4, the electromagnetic sensor 4 generates a pulse signal. Its characteristic is that the inlet pipe 1 and the outlet pipe 3 are connected by a spiral buckle, and the flow meter core 8 is arranged between the inlet pipe 1 and the outlet pipe 3.

[0024] The water inlet pipe 1 is provided with a screw thread 9, and the water outlet pipe 3 is provided with a spiral slide 18 and a screw buckle 10. When the water inlet pipe 1 is connected to the water outlet pipe 3, the screw thread 9 on the water inlet pipe 1 follows the spiral slide 18 on the water outlet pipe, engages and falls into the screw buckle window 19 of the water inlet pipe screw buckle 10 to form a tight combination.

[0025] The impeller 13 of the flowmeter core 8 is integrated with the magnetic core 14 and the shaft 17. The cone heads at both ends of the shaft 17 cooperate with the cone hole 12 of the core front shell 11 and the cone hole 16 of the core rear shell 15. The core front shell 11 and the core rear shell 15 adopt a transition fit assembly structure.

[0026] The water inlet pipe 1 is provided with a groove, and a sealing ring 7 is provided in the groove. When the water inlet pipe 1 is snap-connected with the water outlet pipe 3, the sealing ring 7 is between the water inlet pipe 1 and the water outlet pipe 3 to play a sealing role.

[0027] The outlet pipe 1 is provided with a tightening polygon 2, which is tightened with a wrench to achieve a snap connection between the water inlet pipe 1 and the water outlet pipe 3. The outlet end of the water inlet pipe 1 is provided with a water outlet, which faces the flow meter core 8. The diameter of the water outlet is the same as the diameter of the water inlet of the flow meter core 8.

[0028] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that:

[0029] Various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and purpose of the present invention. The scope of the present invention is defined by the claims and their equivalents. Improvements made without creative work should be included in the scope of protection of the present invention.

Claims

1. A built-in flow meter, comprising an inlet pipe, an outlet pipe, an electromagnetic sensor, and a flow meter core. Water flows into the inlet pipe of the built-in flow meter, drives the impeller in the core to rotate, and then flows out through the outlet pipe. The rotation of the impeller drives the magnetic core on the impeller to rotate. When the magnetic pole of the magnetic core approaches the electromagnetic sensor, the electromagnetic sensor generates a pulse signal. The invention is characterized by: The water inlet pipe and the water outlet pipe are connected by a spiral buckle, and the flow meter core is arranged between the water inlet pipe and the water outlet pipe.

2. A built-in flow meter according to claim 1, characterized in that: The water inlet pipe is provided with screw threads, and the water outlet pipe is provided with a spiral slide and a screw buckle. When the water inlet pipe is connected to the water outlet pipe, the screw threads on the water inlet pipe follow the spiral slide on the water outlet pipe, engage and fall into the screw buckle window of the water inlet pipe screw buckle to form a tight combination.

3. A built-in flow meter according to claim 2, characterized in that: The impeller of the flowmeter core is integrated with the magnetic core and the shaft. The cone heads at both ends of the shaft match with the cone holes on the core front shell and the core rear shell. The core front shell and the core rear shell adopt a transition fit assembly structure.

4. The built-in flow meter according to claim 1, characterized in that: The water inlet pipe is provided with a groove, and a sealing ring is provided in the groove. When the water inlet pipe and the water outlet pipe are snap-connected, the sealing ring is between the water inlet pipe and the water outlet pipe.

5. A built-in flow meter according to any one of claims 1, 2, and 4, characterized in that: The water outlet pipe is provided with a tightening polygonal structure, and a wrench is used to tighten the polygon to achieve a snap connection between the water inlet pipe and the water outlet pipe. The water outlet end of the water inlet pipe is provided with a water outlet, which is facing the flow meter core. The diameter of the water outlet is the same as the diameter of the water inlet of the flow meter core.

Images