TWM634580U - Non-magnetic water meter structure - Google Patents

Abstract

This creation is about a non-magnetic water meter structure, including a housing with a chamber; a fixed seat is fixed in the chamber; An induction part is provided, and the induction part is provided with a plurality of metal reaction layers and non-metal reaction layers in a radial direction; an induction unit is provided with an accommodating part at intervals relative to the induction part in the radial direction, and the accommodating part An inductive element is set in the setting part, and the inductive element can sense the metal reaction layer and the non-metal reaction layer in the radial direction. Therefore, the overall area of the induction part can be reduced, so that it will not be deflected when rotating, so as to avoid excessive wear and tear, which will cause the impeller to fail, be damaged or fail.

Description

Non-magnetic water meter structure

This invention relates to a water meter induction structure that can reduce the overall area of the induction part so that it will not malfunction, be damaged or fail due to wear and tear.

The traditional water meter is mainly of mechanical structure, which drives the gear set to rotate through the turbine blade. Due to long-term use, it will cause the wear of the components or be invalidated by the interference of the magnet.

Therefore, there is the invention No. I730810 "electronic water meter" patent case announced on June 11, 110 of the Republic of China. It discloses that the fluid module includes induction blades and impellers, the induction blades are pivotally connected to the impeller, and when the impeller is rotated by the fluid flow, the impeller drives the induction blades to rotate together. The sensing module and the fluid module are separated in an independent space, and the two are connected by magnetism. The sensing module includes a waterproof case and a sensing circuit. The waterproof case is covered under the sensing circuit and isolates the fluid contact sensor circuit. The induction circuit generates a magnetic field downward, and the induction circuit obtains the characteristic mode of the fluid signal through the disturbance of the magnetic field by the magnetic change of the rotating induction blade.

This prior patent is for detecting the flow and direction of water flow through non-contact sensing method.

The sensing method of the magnetic water meter, such as the Invention No. I588451 "Flow Meter Non-Contact and Continuous Sensing Device and Method" announced on June 21, 2016 in the Republic of China. It discloses that: the internal movable part of the flowmeter is connected with an active part, and when the movable part is driven by the fluid, it is linked with the active part to make a displacement movement. A projector is installed above the active part, which can project a signal to the active part. The part faces the projector to distinguish at least two areas, and at least one area will reflect the continuous signal projected to it, so that the space between the projector and the active part will have a signal density change when the active part passes, which will affect the projection. The projected power of the device is used to sense the movement status of the active part and correspondingly know the flow status of the fluid.

Because the above-mentioned two patents use the impeller to drive the active part to rotate, through the projector, the active part can be sensed to have a number of scattered action areas in the axial direction, and these areas have metal reaction layers and non-metal reaction layers, so that it can produce An induction signal to know the flow rate and flow direction of the water flow through the water meter. However, since the active areas are located in the axial direction of the active part, the area of the active part is too large, and the area of each active area is different, and the weight will be different. The state of the impeller rotation center will cause the impeller to deflect due to the unstable center of gravity when it rotates. After a long time, it will cause wear and damage, resulting in inaccurate sensing and even losing the function of sensing. Therefore, it is still not ideal in use. .

Therefore, in view of the fact that the current non-magnetic water meter structure has the above-mentioned shortcomings. Therefore, this creation provides a non-magnetic water meter structure, which includes: a shell, which is provided with a chamber; a fixed seat, which is fixed in the chamber, and the fixed seat is located on a water flow path through which a water flow passes; an impeller, It is pivoted in the fixed seat in an axial direction, the impeller is located on the water flow path, and the impeller is provided with an induction part protruding from the axial direction, and the induction part is provided with at least one metal reaction layer and a non-conductive layer on a radial ring. Metal reaction layer; an induction unit is fixed on the housing, and the induction unit is opposite to the induction part in the radial direction, and an induction element is arranged at intervals, and the induction element can sense the metal reaction layers in the radial direction and non-metallic reactive layer.

A first port and a second port are respectively provided on the peripheral edge of the above-mentioned casing to respectively penetrate into the chamber, and the first port and the second port are located on the water flow path.

The top edge of the casing is provided with a threaded opening leading to the chamber, and the sensing unit is screwed to the opening to seal the chamber.

The above-mentioned fixed seat is provided with a recessed part, and a first shaft is arranged in the recessed part, and the first shaft has an end, and the impeller is provided with a first shaft hole, and the first shaft passes through the first shaft hole, for the impeller to rotate on the first shaft.

The peripheral ring of the above-mentioned fixed base is provided with a plurality of diversion openings connected to the recessed part, the impeller is pivotally arranged in the recessed part, and the peripheral ring of the impeller is provided with a plurality of blades.

A shaft seat is further provided, and a positioning hole is provided inside the sensing part to communicate with the first shaft hole. The shaft seat is fixed in the positioning hole. One end of the shaft seat protrudes from a second shaft, and The shaft system protrudes out of the positioning hole, and the other end of the shaft seat is provided with a recessed part, and the recessed part is used for the end of the first shaft to abut against to limit the rotation.

A cap is further provided, the cap is closed on the periphery of the sensing part, the cap is provided with a through hole for the second shaft to pass through, the bottom of the sensing unit is provided with a groove, and the groove is For the cap to be set therein, a second shaft hole is recessed and connected in the groove, for the second shaft to be set in the second shaft hole for pivoting.

A plurality of metal reaction layers and non-metal reaction layers are provided above, and the metal reaction layers and non-metal reaction layers are arranged alternately and at intervals in the radial direction of the sensing part.

A plurality of metal reaction layers and non-metal reaction layers are provided above, and the areas of the metal reaction layers and non-metal reaction layers are equal or unequal.

The sensing unit is provided with an accommodating portion at intervals at a position relative to the sensing portion in the radial direction, and the sensing element is set in the accommodating portion.

The induction part is integrally formed on the axial direction of the impeller.

The above technical features have the following advantages:

1. The metal reaction layer and the non-metal reaction layer are radially arranged on the periphery of the induction part, so the overall area of the induction part of the impeller can be reduced, so that the impeller will not be deflected due to the unstable center of gravity when rotating, and Excessive wear, which could lead to impeller failure, damage or failure, is avoided.

2. Since the metal reaction layer and the non-metal reaction layer are radially located on the periphery of the induction part, they are quite close to the rotation center of the impeller, even if the areas of the metal reaction layer and the non-metal reaction layer are not equal, and in There is a difference in weight. When the impeller rotates, the difference in weight is almost negligible, and will not affect the rotation of the impeller, and will not be deflected due to the unstable center of gravity, which can prolong the service life of the impeller and the water meter as a whole. To ensure the accuracy of the water meter.

Please refer to the first picture, the second picture and the third picture, the invention embodiment includes: a housing 1, a fixed seat 2, an impeller 3, a shaft seat 4, a cap 5 and an induction unit 6, wherein:

The casing 1 is provided with a chamber 11 inside, and the periphery of the casing 1 is provided with a first interface 12 and a second interface 13 oppositely, and the first interface 12 and the second interface 13 respectively penetrate into the chamber 11. In addition, the top edge of the casing 1 is provided with an opening 14 with threads, and the opening 14 is connected to the chamber 11 .

The fixing base 2 is fixed in the chamber 11 and located on a water flow path through the first interface 12 and the second interface 13 . The fixing seat 2 has a recessed portion 21 , and a first shaft 22 is arranged inside the recessed portion 21 , and the first shaft 22 has an end portion 221 . The peripheral ring of the fixing seat 2 is provided with a plurality of guide ports 23 , and the guide ports 23 are connected to the recessed portion 21 .

As shown in the first figure, the fourth figure and the fifth figure, the impeller 3 is pivotally installed in the concave portion 21 along an axis X, and is located on the water flow path. The shaft center of the impeller 3 is provided with a first shaft hole 31 , the first shaft hole 31 can pass through the first shaft 22 so that the impeller 3 can rotate on the first shaft 22 . The impeller 3 protrudes along the first shaft hole 31 along the axial direction X with a sensing portion 32 integrally formed on the axial direction X of the impeller 3 . At least one metal reaction layer 321 and non-metal reaction layer 322 are provided on a Y-direction upper circle of the sensing portion 32 , and a plurality of the metal reaction layer 321 and the non-metal reaction layer 322 are provided in the embodiment of the present invention. The metal reaction layers 321 and the non-metal reaction layers 322 are alternately arranged in the radial direction Y of the sensing portion 32 . In addition, the areas of the metal reaction layer 321 and the non-metal reaction layer 322 are equal or unequal. A positioning hole 33 is defined inside the sensing portion 32 , and the positioning hole 33 communicates with the first shaft hole 31 . In addition, a plurality of blades 34 are arranged on the peripheral ring of the impeller 3 .

The shaft seat 4 is fixed in the positioning hole 33 of the impeller 3 , and a second shaft 41 protrudes from one end of the shaft seat 4 , and the second shaft 41 protrudes out of the positioning hole 33 . The other end of the shaft seat 4 is provided with a recessed portion 42 , the recessed portion 42 can be used by the end portion 221 of the first shaft 22 to abut against, so that the impeller 3 can rotate in a limited position.

The cap 5 is used to cover the periphery of the sensing part 32 of the impeller 3. The protective function of the cap 5 can prevent the sensing part 32 from being displaced or damaged by the impact of the water flow, resulting in induction failure. A through hole 51 is defined at a position of the cap 5 corresponding to the second shaft 41 for the second shaft 41 to pass through the through hole 51 .

The sensing unit 6 is screwed to the opening 14 of the casing 1 to seal the chamber 11 . The bottom of the induction unit 6 is provided with a groove 61 , and the groove 61 is for the cap 5 to be inserted therein. A second shaft hole 62 is recessed in the groove 61 for the second shaft 41 to be inserted into the second shaft hole 62 for pivoting. In addition, the groove 61 is provided with an accommodating portion 63 at a position opposite to the sensing portion 32 in the radial direction Y. An inductive element 64 is set in the accommodating portion 63, and the inductive element 64 can sense the rotational state of the metal reaction layers 321 and the non-metal reaction layers 322 of the induction portion 32 in the radial direction Y, so as to emit An induction signal is used for calculating the flow rate and flow direction of the water flow through the water flow path. The method and principle of sensing the flow rate and flow direction of the water flow by the sensing unit 6 is a known technology, and no further drawings and descriptions are hereby given.

During use, as shown in the first figure, the sixth figure and the seventh figure, the first interface 12 and the second interface 13 of the housing 1 are respectively connected to a water pipe a and b, and the two water pipes a, b. When delivering the water flow, it can automatically control the supply source of the water flow, and change it into a water inlet pipe or a water outlet pipe respectively, and can exchange the flow direction of the water flow being delivered. When it is necessary to sense the flow rate or flow direction of the water flow, as long as the water flow is controlled to flow in through the first interface 12 and outflow through the second interface 13, or to flow in through the second interface 13 and outflow through the first interface 12, the invention can implement The example is described with the implementation state that the first interface 12 flows in and the second interface 13 flows out. The water flow delivered through the water pipe a or b can pass through the first interface 12 or the second interface 13, and flow into the recess from the guide ports 23 of the fixing seat 2 along the water flow path. into the portion 21, and then utilize the water flow to drive the blades 34 of the impeller 3 to rotate. The impeller 3 is supported by the first shaft 22 and the second shaft 41 to rotate, and can rotate clockwise or counterclockwise according to the direction of the water flow. When the impeller 3 rotates, it can drive the induction part 32 to rotate. Therefore, the metal reaction layers 321 and non-metal reaction layers 322 of the induction part 32 on the radial direction Y also rotate with the induction element. 64 can send a projected signal to the sensing part 32, so as to sense the rotation state of the metal reaction layers 321 and non-metal reaction layers 322 on the sensing part 32, and can send the sensing signal and transmit the sensing signal To the remote water delivery plant or control center, so as to be able to calculate the flow rate and flow direction of the water flow through the water flow path.

Therefore, the embodiment of the invention utilizes the metal reaction layers 321 and the non-metal reaction layers 322 to be arranged on the periphery of the induction part 32 in the radial direction Y, so that the overall area of the induction part 32 of the impeller 3 can be reduced. , so that when the impeller 3 rotates, it will not be deflected due to the unstable center of gravity, and excessive wear can also be avoided, which will cause the impeller 3 to malfunction, be damaged or fail. And because these metal reaction layers 321 and non-metal reaction layers 322 are located on the periphery of this induction part 32 with this radial direction Y, therefore quite close to the rotation center of this impeller 3, even if these metal reaction layers 321 and non-metal reaction layers The area of the metal reaction layer 322 is large and small, but differs in weight. When the impeller 3 is rotating, the difference in weight is almost negligible, without affecting the rotation of the impeller 3, and It will not be deflected due to the unstable center of gravity, and the service life of the impeller 3 and the whole can be extended, and the accuracy of the water meter can be ensured.

Based on the description of the above embodiments, it is possible to fully understand the operation and use of this creation and the effects of this creation, but the above-mentioned embodiment is only a preferred embodiment of this creation, and should not limit the implementation of this creation. The scope, that is, the simple equivalent changes and modifications made according to the scope of the patent application for this creation and the content of the creation description, all fall within the scope of this creation.

1: Shell 11: Containment room 12: The first interface 13: Second interface 14: opening 2: Fixed seat 21: concave part 22: The first axis 221: end 23: Diversion port 3: impeller 31: The first shaft hole 32: Induction Department 321: metal reaction layer 322: Non-metal reactive layer 33: positioning hole 34: blade 4: shaft seat 41: Second axis 42: concave part 5: cap 51: through hole 6: Induction unit 61: Groove 62: Second shaft hole 63:Accommodating part 64: Sensing element A, B: water pipe X: Axial Y: Radial

[The first figure] is the three-dimensional exploded view of the creation embodiment.

[Second figure] is the three-dimensional combined figure of this creation embodiment.

[The third figure] is a combined sectional view of the embodiment of the invention.

[The 4th figure] is the enlarged schematic view of the impeller of the embodiment of the invention.

[The fifth figure] is a cross-sectional view of the combination of the fixed seat, impeller, shaft seat and cap of the present creation embodiment.

[The sixth figure] is a schematic diagram of the water flow path through which the water flow passes when the embodiment of the invention is in use.

[Figure 7] is a schematic diagram of the sensing element sensing the metal reaction layer and the non-metal reaction layer of the embodiment of the present invention.

1: shell

11: Containment room

12: The first interface

13: Second interface

14: opening

2: Fixed seat

21: concave part

22: The first axis

221: end

23: Diversion port

3: impeller

32: Induction Department

321: metal reaction layer

322: Non-metal reactive layer

33: positioning hole

34: blade

4: shaft seat

41: Second axis

5: cap

51: through hole

6: Induction unit

61: Groove

64: Sensing element

Claims (10)

A non-magnetic water meter structure, including: A shell, which is provided with a chamber; A fixing seat is fixed in the container, and the fixing seat is located on a water flow path through which a water flow passes; An impeller is pivotally installed in the fixed seat in an axial direction, and the impeller is located on the water flow path. The impeller is provided with an induction part protruding from the axial direction, and the induction part is provided with at least one metal reaction part on a radial ring. layer and non-metal reactive layer; An induction unit is fixed on the casing, and the induction unit is opposite to the induction part in the radial direction, and an induction element is arranged at intervals, and the induction element can sense the metal reaction layer and the non-metal reaction in the radial direction Floor. The structure of the non-magnetic water meter according to claim 1, wherein a first port and a second port are respectively provided on the periphery of the casing to penetrate into the chamber respectively, and the first port and the second port are located on the water flow path. The structure of the non-magnetic water meter according to claim 1, wherein the top edge of the housing is provided with an opening with a thread connected to the chamber, and the sensing unit is screwed to the opening to seal the chamber. According to the non-magnetic water meter structure of claim 1, wherein, the fixed seat is provided with a recessed part, and a first shaft is arranged inside the recessed part, and the first shaft has an end, and the impeller is provided with a first shaft hole, the The first shaft passes through the first shaft hole for the impeller to rotate on the first shaft. The structure of the non-magnetic water meter as claimed in claim 4, wherein the peripheral ring of the fixed seat is provided with a plurality of diversion openings connected to the concave part, the impeller is pivotally arranged in the concave part, and the peripheral ring of the impeller is provided with a plurality of blades . As in the non-magnetic water meter structure of claim 4, a shaft seat is further provided, and a positioning hole is provided inside the sensing part to communicate with the first shaft hole. The shaft seat is fixed in the positioning hole, and one end of the shaft seat A second shaft is protrudingly provided, and the second shaft system protrudes out of the positioning hole, and the other end of the shaft seat is provided with a concave part for the end of the first shaft to abut against. And limit rotation. According to the non-magnetic water meter structure of claim 6, a cap is further provided, and the cap is closed to the periphery of the sensing part. The cap is provided with a through hole for the second shaft to pass through. The sensing unit The bottom of the bottom is provided with a groove, the groove is for the cap to be set in it, and a second shaft hole is connected to the groove for the second shaft to be set in the second shaft hole to pivot. The non-magnetic water meter structure of Claim 1, wherein a plurality of metal reaction layers and non-metal reaction layers are provided, and the metal reaction layers and non-metal reaction layers are arranged in a staggered interval in the radial direction of the sensing part. The non-magnetic water meter structure of claim 1, wherein there are multiple metal reaction layers and non-metal reaction layers, and the areas of the metal reaction layers and non-metal reaction layers are equal or unequal. The structure of the non-magnetic water meter according to claim 1, wherein, the sensing unit is provided with an accommodating part at intervals relative to the sensing part in the radial direction, and the sensing element is set in the accommodating part.

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