Novel flowmeter

Abstract

The novel flow meter comprises a main body, an upper cover, a lower cover, an impeller, a flow guide plug, a valve element assembly, a support and a welding-free plug, the upper cover and the lower cover are connected with the two ends of the main body through clamping structures respectively, the support is arranged in an inner cavity of the main body, the impeller is fixed through the support, a rotating shaft of the impeller is parallel to the axial direction of the main body, and the flow guide plug is arranged in the main body. The flow guide plug is located on one side of the impeller, the water inlet end of the flow guide plug is connected with the water inlet of the body, a valve element assembly is arranged at the water outlet end of the body and fixed to the water outlet end of the body through a welding-free plug, and a sealing ring is arranged on the outer wall of the welding-free plug and connected with the inner wall of the body in a sealed mode. Therefore, through the design of the integrated valve element assembly, the novel flow meter achieves the dual functions of flow measurement and water flow backward flowing prevention, the structure is simplified, the cost is reduced, meanwhile, the requirements of equipment such as a water purifier for high sealing performance and compact design are met, and the practicability and reliability of products are remarkably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to flowmeter technical field especially relates to a novel flowmeter. BACKGROUND

[0002] At present, the pure water machine on market generally adopts separate flowmeter and check valve combination to realize the measurement of water flow and prevent the function of water flow backflow, the flowmeter usually includes impeller, flow guide device and measurement cavity and the like structure, is used for monitoring water flow and transmission data, and the check valve is independently arranged at the water outlet end of the flowmeter and is used for preventing water flow backflow from damaging the equipment, in the prior art, the flowmeter and the check valve are connected with each other through pipeline, need multiple components cooperation when installing, the structure is complex, occupies larger space, and increases the cost of installation and maintenance;

[0003] However, the flowmeter and the check valve are independent components, the connection between the two needs additional pipeline and interface, increases the complexity of the pipeline system, occupies the limited equipment installation space, secondly, due to the pipeline connection between multiple components, the sealing performance is poor, and leakage problem is prone to occur, reduces the reliability of the equipment, in addition, this split type design increases the production and installation cost, does not meet the current demand of the pure water machine industry to integrated, compact design. SUMMARY

[0004] The utility model aims at at least one of the technical problems in the related art to some extent.

[0005] Therefore, the utility model provides a novel flowmeter, which can integrate the check valve into the flowmeter, save space and reduce cost.

[0006] To achieve the above object, the utility model provides a novel flowmeter, which comprises a main body, an upper cover, a lower cover, an impeller, a flow guide plug, a valve core assembly, a bracket and a welding-free plug, wherein the upper cover and the lower cover are connected with the two ends of the main body through clamping structures respectively, the inner cavity of the main body is provided with the bracket, the bracket fixes the impeller, the rotating shaft of the impeller is parallel to the axial direction of the main body, the flow guide plug is arranged in the main body and located on one side of the impeller, the water inlet end of the flow guide plug is connected with the water inlet of the main body, the water outlet end of the main body is provided with the valve core assembly, the valve core assembly is fixed on the water outlet end of the main body through the welding-free plug, and the outer wall of the welding-free plug is provided with a sealing ring and is sealingly connected with the inner wall of the main body.

[0007] The utility model discloses a novel flowmeter, through the valve core subassembly is directly built -in in the water outlet end of flowmeter, has saved external pipeline and interface connection, makes the overall structure compact, and installation is convenient, has saved the installation space of equipment, and has promoted the sealing performance, secondly, in traditional design, the split structure is easy to cause water flow leakage problem because of multiple connecting points, and the clamping structure and sealing ring design of exempted from welding plug ensure the sealing property of flowmeter, and the hidden danger of water flow leakage is eliminated, therefore, novel flowmeter realizes the dual function of flow measurement and prevents water flow back -in through the design of integrated valve core subassembly, simplifies the structure, reduces the cost, satisfies the demand of high sealing property and compact design of pure water machine and other equipment simultaneously, and the practicability and reliability of product are improved significantly.

[0008] In addition, the novel flowmeter disclosed by the utility model has the following additional technical features.

[0009] Specifically, the upper cover and the lower cover are fixedly connected with the main body through threads or buckle structures to form a sealed flowmeter cavity.

[0010] Specifically, the flow guide plug has a flow guide channel for guiding fluid into the cavity where the impeller is located and is connected between the water inlet of the main body and the impeller.

[0011] Specifically, the impeller is fixed through a support, the fixed end of the support is connected with the inner wall of the main body, and the outer edge of the impeller is arranged in a spaced manner with the wall surface of the inner cavity of the main body.

[0012] Specifically, the valve core subassembly includes a valve core and a spring, the valve core is in contact with one end of the spring, the other end of the spring is in contact with the exempted from welding plug, and the valve core is kept in a fixed position.

[0013] Specifically, the exempted from welding plug is provided with a clamping groove or a threaded structure, is fixedly connected with the water outlet end of the main body, and is sealed through a sealing ring.

[0014] The additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0015] The above and / or additional aspects and advantages of the utility model will become apparent and easy to understand from the following description of embodiments in conjunction with the accompanying drawings, in which:

[0016] Fig. 1 It is the overall explosion structure schematic view of the utility model;

[0017] Fig. 2 It is the overall sectional view of the utility model;

[0018] Fig. 3 It is the overall structure schematic view of the utility model.

[0019] As shown in the figure:

[0020] 1, the main body; 2, the upper cover; 3, the lower cover; 4, the impeller; 5, the flow guide plug; 6, the valve core assembly; 7, the bracket; 8, the welding-free plug. DETAILED DESCRIPTION

[0021] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application. On the contrary, the embodiments of the present application include all changes, modifications and equivalents falling within the spirit and scope of the appended claims.

[0022] The novel flow meter of the embodiments of the present application is described below in combination with the drawings.

[0023] As Figs. 1-3 shown, the novel flow meter of the embodiments of the present application can include a main body 1, an upper cover 2, a lower cover 3, an impeller 4, a flow guide plug 5, a valve core assembly 6, a bracket 7 and a welding-free plug 8, wherein the upper cover 2 and the lower cover 3 are connected to the two ends of the main body 1 through clamping structures respectively; the inner cavity of the main body 1 is provided with the bracket 7, the bracket 7 fixes the impeller 4, the rotating shaft of the impeller 4 is parallel to the axial direction of the main body 1; the main body 1 is provided with the flow guide plug 5, the flow guide plug 5 is located on one side of the impeller 4, the water inlet end of the flow guide plug 5 is connected to the water inlet of the main body 1; the water outlet end of the main body 1 is provided with the valve core assembly 6, the valve core assembly 6 is fixed to the water outlet end of the main body 1 through the welding-free plug 8, the outer wall of the welding-free plug 8 is provided with a sealing ring and is sealingly connected to the inner wall of the main body 1.

[0024] It should be noted that the inner part of the main body 1 in this embodiment is provided with the bracket 7, the bracket 7 is fixed to the inner wall of the main body 1 and is used to support the impeller 4, the impeller 4 is installed in the middle part of the bracket 7 through a rotating shaft and is located in the cavity of the main body 1, the rotating shaft of the impeller 4 is arranged along the axial direction of the main body 1, and the water flow pushes the impeller 4 to rotate when passing through, which is used for flow measurement.

[0025] The water inlet end of the main body 1 is provided with the flow guide plug 5, the flow guide plug 5 is fixedly connected to the inner wall of the main body 1 through a nesting mode, the inlet of the flow guide plug 5 is directly communicated with the water inlet of the main body 1, the inner part of the flow guide plug 5 is provided with a flow guide channel, which is used to guide the water flow to enter the inner part of the main body 1 and ensure the flow stability when the water flow passes through the impeller 4, the outlet of the flow guide channel is directly opposite to the impeller 4, and the water flow can accurately push the impeller 4 to rotate after passing through the flow guide plug 5.

[0026] The water outlet end of the main body 1 is provided with a valve core assembly 6, which comprises a valve core and a spring. The valve core is supported by the spring, and the bottom end of the valve core is fixed to the water outlet end of the main body 1 by a welding-free plug 8. One end of the spring is connected to the valve core, and the other end is in contact with the welding-free plug 8, which is used to keep the valve core in a closed state when there is no water flow. The welding-free plug 8 is fixed to the water outlet end of the main body 1 by a clamping structure. The outer wall of the welding-free plug 8 is provided with a sealing ring, which is in close contact with the inner wall of the main body 1 to achieve sealing. The welding-free plug 8 can be quickly and tightly installed.

[0027] The flow guide plug 5, impeller 4, bracket 7, valve core assembly 6 and welding-free plug 8 of the new flow meter are arranged along the axis direction of the main body 1 in sequence. The components are arranged compactly, reducing the occupied space of the overall structure. The flow guide plug 5, bracket 7 and welding-free plug 8 are made of high-strength corrosion-resistant materials. The valve core and spring are made of pressure-resistant metal materials to ensure that the flow meter can adapt to complex working environments.

[0028] Specifically, the working principle of the new flow meter is as follows: when water flows into the water inlet of the flow meter, it first passes through the flow guide channel of the flow guide plug 5. The flow guide plug 5 guides the water flow into the main body 1 and stabilizes the flow direction. The water flow then pushes the impeller 4 to rotate. The rotation of the impeller 4 drives the connected sensing device to record flow information, thereby completing the measurement of the flow. The measured water flow continues to flow along the inner cavity of the main body 1 to the water outlet end and finally reaches the valve core assembly 6. The valve core assembly 6 is composed of a valve core and a spring. The pressure generated by the water flow pushes the valve core to open against the elastic force of the spring, and the water is discharged from the water outlet end. When the water flow stops, the spring resets the valve core to the closed state, preventing backflow and ensuring the normal operation of the equipment. The valve core assembly 6 is fixed to the water outlet end of the main body 1 by the welding-free plug 8. The welding-free plug 8 is connected to the main body 1 by a clamping structure, and the sealing ring on the outer wall of the welding-free plug 8 ensures the sealing with the inner wall of the main body 1.

[0029] As shown in Figs. 1-3 The upper cover 2 and the lower cover 3 are fixedly connected to the main body 1 by threads or a clamping structure to form a sealed flow meter cavity. The flow guide plug 5 has a flow guide channel for guiding the fluid into the cavity where the impeller 4 is located. The impeller 4 is fixed by the bracket 7, and the fixed end of the bracket 7 is connected to the inner wall of the main body 1. The outer edge of the impeller 4 is arranged at a distance from the wall of the inner cavity of the main body 1. The valve core assembly 6 comprises a valve core and a spring. The valve core is in contact with one end of the spring, and the other end of the spring is in contact with the welding-free plug 8 to keep the valve core in a fixed position. The welding-free plug 8 is provided with a clamping groove or a threaded structure, which is fixedly connected to the water outlet end of the main body 1 and sealed by a sealing ring.

[0030] It should be noted that the water flow described in the embodiment enters the cavity where the impeller 4 is located through the flow guide channel of the flow guide plug 5 after entering the water inlet of the main body 1, the flow guide plug 5 guides the water flow direction and stabilizes the flow, the water flow drives the impeller 4 to rotate, the rotation of the impeller 4 realizes flow measurement through the sensing device, the measured water flow continues to flow to the water outlet end, the valve core of the valve core assembly 6 is opened by overcoming the elastic force of the spring, the welding plug 8 can be used for one-way valve water blocking, when the water flow stops, the spring resets the valve core to the closed state, prevents backflow of the water flow, at the same time, the welding plug 8 is fixedly connected with the water outlet end of the main body 1 through the clamping groove or the threaded structure, and the sealing ring ensures the airtightness of the main body 1, so that the flow measurement and one-way backflow prevention functions are realized.

[0031] In summary, the novel flow meter of the embodiment of the utility model, by the valve core assembly 6 is directly built-in in the water outlet end of flow meter, has saved external pipeline and interface connection, makes the overall structure compact, installation is convenient, has saved the installation space of equipment, and has promoted the sealing performance, secondly, in traditional design, the split structure is easy to cause water flow leakage problem because of multiple connection points, and the clamping structure and sealing ring design of welding plug 8 ensure the airtightness of the flow meter, eliminate the hidden danger of water flow leakage, therefore, the novel flow meter realizes the dual functions of flow measurement and preventing backflow of water flow by the design of integrated valve core assembly 6, simplifies the structure, reduces the cost, at the same time meets the demand of pure water machine and other equipment to high sealing property and compact design, significantly improves the practicability and reliability of product.

[0032] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the utility model, and those skilled in the art can change, modify, replace and deform the above-mentioned embodiments within the scope of the utility model.

Claims

1. A new flow meter characterized in that, The utility model relates to a flowmeter, including main body, upper cover, lower cover, impeller, flow guide plug, valve core assembly, support and welding -free plug, wherein, The upper cover and the lower cover are connected with the two ends of the main body through clamping structures respectively; The inner cavity of the main body is provided with a support, the support fixes the impeller, and the rotating shaft of the impeller is parallel to the axial direction of the main body; The main body is provided with a flow guide plug, the flow guide plug is located at one side of the impeller, and the water inlet end of the flow guide plug is connected with the water inlet of the main body; The water outlet end of the main body is provided with a valve core assembly, the valve core assembly is fixed at the water outlet end of the main body through a welding-free plug, the outer wall of the welding-free plug is provided with a sealing ring and is sealingly connected with the inner wall of the main body.

2. The novel flow meter of claim 1, wherein, The upper cover and the lower cover are fixedly connected with the main body through threads or buckle structures, forming a closed flowmeter cavity.

3. The novel flow meter according to claim 1 or 2, characterized in that, The flow guide plug has a flow guide channel for guiding fluid into the cavity where the impeller is located and is connected between the water inlet of the main body and the impeller.

4. The novel flow meter of claim 3, wherein, The impeller is fixed by the support, the fixed end of the support is connected with the inner wall of the main body, and the outer edge of the impeller is arranged at intervals with the wall surface of the inner cavity of the main body.

5. The novel flow meter of claim 4, wherein, The valve core assembly includes a valve core and a spring, the valve core is in contact with one end of the spring, the other end of the spring is in contact with the welding-free plug, and is used to keep the valve core in a fixed position.

6. The novel flow meter of claim 5, wherein, The welding-free plug is provided with a clamping groove or a thread structure, is fixedly connected with the water outlet end of the main body, and is sealed by the sealing ring.

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