Novel flowmeter device

Abstract

The utility model discloses a novel flowmeter device which comprises an upper shell and a lower shell which are assembled with each other, rotors are rotationally installed in the upper shell and the lower shell, a liquid outlet pipe and a liquid inlet pipe are arranged at the outer end of the upper shell and the outer end of the lower shell respectively, a plurality of blades are distributed on the outer sides of the rotors at equal intervals, and columns are arranged on the blades. Each blade is provided with a cylinder, so that the shape of each blade is kept uniform, the weight of each blade is balanced, and the dynamic balance effect is improved. The pressing block and the sinking groove are arranged in a long and short manner, so that the problem of reverse installation can be avoided; and the assembling groove and the aligning block are uniquely positioned and matched, so that the problem of reverse assembly is further avoided. The two ends of the rotor are modified into flat-corner cone blocks, and top sharp corners of the cone blocks are removed, so that the injection molding rate is increased, and damage caused by collision is avoided.

Description

Technical Field

[0001] This utility model belongs to the field of flow meter technology, and specifically relates to a new flow meter device. Background Technology

[0002] A flow meter is an instrument used to measure the flow rate of a fluid (gas or liquid) through a specific cross-section of a pipe. Flow meters play a crucial role in many fields, including industry, environmental monitoring, and scientific research.

[0003] Referring to existing technical solutions, application number (202422001044.8), "A Novel Flow Meter Structure," discloses a novel flow meter structure, including: a first housing and a second housing. An outlet pipe and an inlet pipe are respectively installed at the outer ends of the first and second housings. The characteristic feature is that a rotor is installed inside the first housing, and two countersunk holes are symmetrically installed on both sides of the rotor surface. Two cylindrical magnets are pressed into each of the two countersunk holes. The first and second housings are fixed by a fixing structure, eliminating the need to place magnets during production in the injection molding machine, removing the magnet embedding work, and replacing the rectangular sealing ring with a circular sealing ring, thereby improving the flow meter's production efficiency and sealing performance.

[0004] However, this technical solution has the following problems: 1. The central rotor has six blades, with two symmetrical blades bearing magnets, which results in poor dynamic balance during rotation. 2. The tapered tips at both ends of the central rotor are sharp angles, and the mating point with the housing is also a sharp angle, making it difficult to ensure proper injection molding during actual production and prone to damage during manufacturing; one side of the housing is a flat surface, which is prone to shrinkage and deformation during injection molding, making dimensional accuracy difficult to control. 3. There are no limiting features around the assembled housing, making it easy to assemble backwards. Utility Model Content

[0005] The purpose of this invention is to provide a new flow meter device to solve the problems of housing assembly, rotor dynamic balancing and product injection molding in the prior art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A new flow meter device includes two upper and lower housings assembled together. A rotor is rotatably installed inside the upper and lower housings. An outlet pipe and an inlet pipe are respectively provided at the outer ends of the upper and lower housings. The device is characterized in that: a number of blades are equidistantly distributed on the outer side of the rotor. Each blade is provided with a column. Two of the symmetrical columns are provided with slots, and the slots are filled with cylindrical magnets.

[0008] Preferably, the outer wall of the upper shell is provided with a side end face, and the side end face is provided with a plurality of reinforcing ribs.

[0009] Preferably, the rotor has flat-angled cone blocks at both ends. Two symmetrical reinforcing ribs are added to hold the side end face in place during injection molding, preventing deformation and avoiding inward shrinkage and deformation during the injection molding process, thus improving the molding rate of the injection molded product.

[0010] Preferably, the upper housing has an assembly chamber inside, and a recessed groove is symmetrically arranged above the assembly chamber. A flat-angled cone hole is provided at the center of the bottom of the recessed groove. The flat-angled cone block and the flat-angled cone hole cooperate with each other, and the top of the flat-angled cone hole is inclined.

[0011] Preferably, the bottom surface of the lower housing has symmetrical pressure blocks, the top of the pressure blocks is inclined, the two pressure blocks are of different lengths, the two sinking grooves are of different lengths, and the pressure blocks and sinking grooves cooperate with each other.

[0012] Preferably, the lower housing has an alignment block on its side, and the outer wall of the upper housing has an assembly groove that fits into the alignment block. The unique positioning and engagement of the assembly groove and the alignment block further avoids the problem of reverse installation and facilitates identification and positioning during installation.

[0013] Preferably, the outer side of the lower housing is provided with a beveled surface, the inner wall of the top of the upper housing matches the beveled surface, and the outer wall of the lower housing is provided with a gasket groove.

[0014] The technical solution of this utility model has the following beneficial effects:

[0015] 1. Each blade is equipped with a column, which ensures that the shape of each blade is uniform, balances the weight of each blade, and improves the dynamic balance effect.

[0016] 2. The design of the pressure block and the sinker being of different lengths avoids the problem of reverse installation; the unique positioning and matching of the assembly slot and the alignment block further avoids the problem of reverse installation.

[0017] 3. Modify both ends of the rotor to flat-angled cones and remove the sharp corners at the top of the cones to improve the injection molding rate and avoid damage caused by collisions. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0019] Figure 1 This is a schematic diagram of the overall disassembled structure of this utility model.

[0020] Figure 2 This is an internal cross-sectional view of the overall assembly of this utility model.

[0021] Figure 3This is an internal cross-sectional view of the overall assembly of this utility model.

[0022] Figure 4 This is a three-dimensional cross-sectional view of the upper shell of this utility model.

[0023] Figure 5 This is a planar cross-sectional view of the upper shell of this utility model.

[0024] Figure 6 This is a diagram showing the rotor position and installation of this utility model.

[0025] Figure 7 This is a schematic diagram of the internal structure of the upper shell of this utility model.

[0026] Figure 8 This is a schematic diagram of the lower shell structure of this utility model.

[0027] Figure 9 This is a diagram showing the rotor position and installation of this utility model.

[0028] Figure 10 This is a diagram showing the chip placement and installation of this utility model.

[0029] Reference numerals: 10. Upper housing; 11. Liquid outlet pipe; 12. Side end face; 13. Reinforcing rib; 14. Assembly groove; 101. Assembly chamber; 102. Sinking groove; 103. Flat angle cone hole; 104. Angled joint surface; 105. Washer groove; 20. Rotor; 21. Blade; 22. Column; 23. Hole groove; 24. Flat angle cone block; 30. Lower housing; 31. Liquid inlet pipe; 32. Alignment block; 33. Pressing block; 34. Chip. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0031] Example 1:

[0032] refer to Figure 1 A new flow meter device includes two assembled upper housings 10 and lower housings 30. A rotor 20 is rotatably mounted inside the upper housings 10 and lower housings 30. An outlet pipe 11 and an inlet pipe 31 are respectively provided at the outer ends of the upper housings 10 and lower housings 30. Several blades 21 are equidistantly distributed on the outer side of the rotor 20. Each blade 21 is provided with a column 22. Two symmetrical columns 22 are provided with slots 23. The slots 23 are filled with cylindrical magnets.

[0033] In the above solution, referring to the existing technology (202422001044.8), there are only two symmetrical columns among the multiple blades. During the rotation process, the rotor dynamic balance is not good, resulting in greater product vibration and also reducing service life.

[0034] In this embodiment, the outlet pipe 11 and the inlet pipe 31 are connected to the pipeline, and water enters the flow meter device. The rotor 20 rotates under the influence of the water flow, and the flow rate is calculated based on the number of rotations of the rotor 20. A column 22 is provided for each blade 21, so that the shape of each blade 21 is kept uniform, the weight of each blade 21 is balanced, and the dynamic balance effect is improved.

[0035] Further reference Figure 1 The outer wall of the upper shell 10 is provided with a side end face 12, and a number of reinforcing ribs 13 are provided on the side end face 12.

[0036] In this further embodiment, two symmetrical reinforcing ribs 13 are added so that the side end face 12 is held in place by these two reinforcing ribs 13 during the injection molding process to prevent deformation; this avoids the side end face 12 from easily shrinking and deforming inward during the injection molding process, making it difficult to control the precision dimensions, and improving the molding rate of injection molded products.

[0037] A slot for placing chip 34 is provided on the side of the upper housing 10. Chip 34 is used to read the count of rotor 20, and integrates data statistics and signal transmission.

[0038] Example 2:

[0039] refer to Figure 1 The rotor 20 has flat-angled cone blocks 24 at both ends.

[0040] Referring to existing technology (202422001044.8), the cone tips at both ends of the intermediate rotor are sharp angles, and the position where the housing mates with it is also a sharp angle. In actual production, it is difficult to ensure injection molding, and it is easy to be damaged during production. In addition, there is a sloping gap after the two cone tips come into contact, which affects the assembly accuracy.

[0041] In the above scheme, this implementation scheme modifies the two ends of the rotor 20 into flat-angled cone blocks 24, and removes the sharp corners at the top of the cone blocks, thereby improving the injection molding rate and avoiding damage caused by collision.

[0042] Preferred reference Figures 1-7 The upper shell 10 has an assembly chamber 101 inside. A recessed groove 102 is symmetrically arranged above the assembly chamber 101. A flat-angled cone hole 103 is provided at the bottom center of the recessed groove 102. The flat-angled cone block 24 and the flat-angled cone hole 103 cooperate with each other. The top of the flat-angled cone hole 103 is inclined.

[0043] In the preferred embodiment, the flat-angled cone block 24 and the flat-angled cone hole 103 cooperate with each other, and the top of the flat-angled cone hole 103 adopts a bevel transition (see reference). Figure 5 This fills the gap after assembly and increases the contact surface between the flat-angled cone block 24 and the flat-angled cone hole 103.

[0044] Example 3:

[0045] refer to Figures 6-9 The bottom surface of the lower housing 30 has symmetrical pressure blocks 33. The top of the pressure block 33 is inclined. The two pressure blocks 33 are of different lengths, and the two sinking grooves 102 are of different lengths. The pressure blocks 33 and the sinking grooves 102 cooperate with each other.

[0046] In the above scheme, the arrangement of the pressure block 33 and the sink trough 102, one long and one short, can avoid the problem of reverse installation, improve the workers' ability to identify the components during the assembly process, and thus improve assembly efficiency.

[0047] Preferred reference Figure 1 The lower housing 30 has an alignment block 32 on its side, and the upper housing 10 has an assembly groove 14 on its outer wall that fits into the alignment block 32.

[0048] In this preferred embodiment, the unique positioning and cooperation of the assembly slot 14 and the alignment block 32 further avoids the problem of reverse installation and facilitates identification and positioning of the assembly during the installation process.

[0049] Example 4:

[0050] refer to Figure 2 The lower housing 30 has a beveled surface 104 on its outer side, the top inner wall of the upper housing 10 matches the beveled surface 104, and the outer wall of the lower housing 30 has a gasket groove 105.

[0051] In the above solution, an O-ring is placed inside the gasket groove 105, and the upper housing 10's top inner wall matches the inclined surface 104. This prevents the gasket from being scratched during assembly, thus improving assembly safety.

[0052] The specific implementation process of this utility model is as follows:

[0053] When assembling the rotor 20, first place the rotor 20 into the upper housing 10, and then have it engage with the flat-angled cone block 24 and the flat-angled cone hole 103. Then assemble the lower housing 30 with the upper housing 10. The setting of the pressure block 33 and the sinker 102, which are of different lengths, can avoid the problem of reverse assembly. The unique positioning engagement of the assembly slot 14 and the alignment block 32 further avoids the problem of reverse assembly and facilitates identification and positioning during the installation process.

[0054] The above embodiments are merely exemplary models of this utility model and are not intended to limit this utility model. The scope of protection of this utility model is defined by the claims. Various modifications or equivalent substitutions can be made to this utility model within its substance and scope of protection. Such modifications or equivalent substitutions should also be considered to fall within the scope of protection of this utility model.

[0055] In the description of this utility model, it should be noted that the terms "inner," "front," "rear," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the attached circle, or the orientation or positional relationship commonly used when the utility model product is in use. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, these terms indicating orientation or positional relationship should not be construed as limitations on this utility model.

[0056] In the description of this utility model, it should be further noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, these terms can refer to a fixed connection, a detachable connection, or an integral connection between components; they can also refer to a mechanical connection or an electrical connection; or they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

Claims

1. A novel flow meter device, comprising two mutually assembled upper housings (10) and lower housings (30), wherein a rotor (20) is rotatably mounted inside the upper housings (10) and lower housings (30), and the outer ends of the upper housings (10) and lower housings (30) are respectively provided with an outlet pipe (11) and an inlet pipe (31), characterized in that: The rotor (20) has several blades (21) evenly distributed on its outer side. Each blade (21) is provided with a column (22), and two symmetrical columns (22) are provided with slots (23).

2. The novel flow meter device according to claim 1, characterized in that: The outer wall of the upper shell (10) is provided with a side end face (12), and the side end face (12) is provided with a plurality of reinforcing ribs (13).

3. The novel flow meter device according to claim 1, characterized in that: The rotor (20) has flat-angled cone blocks (24) at both ends.

4. The novel flow meter device according to claim 3, characterized in that: The upper housing (10) has an assembly chamber (101) inside. A recessed groove (102) is symmetrically arranged above the assembly chamber (101). A flat-angled cone hole (103) is provided at the bottom center of the recessed groove (102). The flat-angled cone block (24) and the flat-angled cone hole (103) cooperate with each other. The top of the flat-angled cone hole (103) is inclined.

5. A novel flow meter device according to claim 4, characterized in that: The bottom surface of the lower housing (30) has symmetrical pressure blocks (33), the top of the pressure blocks (33) is inclined, the two pressure blocks (33) are of different lengths, the two sinking grooves (102) are of different lengths, and the pressure blocks (33) and sinking grooves (102) cooperate with each other.

6. The novel flow meter device according to claim 1, characterized in that: The lower housing (30) has an alignment block (32) on its side, and the outer wall of the upper housing (10) has an assembly groove (14) that fits into the alignment block (32).

7. A novel flow meter device according to claim 1, characterized in that: The lower housing (30) has a beveled surface (104) on its outer side, the inner wall of the top of the upper housing (10) matches the beveled surface (104), and the outer wall of the lower housing (30) has a gasket groove (105).

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