CN202853671U - Device for improving metering quality of volumetric water meter - Google Patents
Device for improving metering quality of volumetric water meter Download PDFInfo
- Publication number
- CN202853671U CN202853671U CN 201220330847 CN201220330847U CN202853671U CN 202853671 U CN202853671 U CN 202853671U CN 201220330847 CN201220330847 CN 201220330847 CN 201220330847 U CN201220330847 U CN 201220330847U CN 202853671 U CN202853671 U CN 202853671U
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- piston mechanism
- water meter
- arc
- meter
- ring seal
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Abstract
The utility model relates to a device for improving metering quality of a volumetric water meter. The device for improving the metering quality of the volumetric water meter comprises a meter shell, a piston mechanism, a half-bowl-shaped filter and a bow-shaped sealing ring. A central separating board arranged on the bottom of the meter shell divides the bottom into a water inlet area and a water outlet area. A bearing table which is equal with the central separating board in height is arranged on the inner cavity wall of the meter shell. A platform for installing of the piston mechanism is provided by the central separating board and the bearing table. The piston mechanism is located above an inner platform of the meter shell. The half-bowl-shaped filter and the bow-shaped sealing ring are installed between the bottom of the piston mechanism and the platform. The device for improving the metering quality of the volumetric water meter has the advantages that the half-bowl-shaped filter which is additionally arranged has a large water inlet area, water inlet pressure loss is reduced, impurities is prevented from entering a water meter metering system, and normal operation of a piston is ensured. Due to the bow-shaped sealing ring which is additionally arranged, the water inlet area and the water outlet area of the water meter are effectively separated, and a leakage phenomenon is avoided. According to the device for improving the metering quality of the volumetric water meter, structure is improved, and metering accuracy of the water meter is improved.
Description
Technical field:
The utility model relates to a kind of measuring instrument, especially relates to a kind of device that improves volumetric water meter metering quality.
Background technology:
In the prior art, for improving the degree of accuracy of water meter measurement, main energy is concentrated on the counter of water meter, and ignored some structural defectives of self product, and for example: existing volumetric water meter adopts upper and lower casing formula structure mostly, and current enter from the lower casing bottom water inlet of table, water delivering orifice from upper watchcase behind metering system flows out, because upper and lower casing formula sealing structure difficulty is large, often produces weeping, has affected measuring accuracy.In addition, although the water meter water inlet is provided with cylindric filter screen, because being subjected to the restriction in space, reach again the requirement of filtration, the mesh of filter screen is selected too small, can lose excessive situation by build-up of pressure, if the mesh of filter screen is excessive, then can not guarantee filter effect.These structural weak points have all affected the raising of water meter measurement quality.
The utility model content:
The purpose of this utility model is the device that provides a kind of for the prior art weak point and can not produce water clock, can guarantee the raising volumetric water meter metering quality of filtering requirement, can reduce crushing.
The purpose of this utility model is to realize by following measures: a kind of device that improves volumetric water meter metering quality, comprise watchcase, piston mechanism, and it is characterized in that: also have half bowl-type filtrator, arc O-ring seal; The central baffle that described watchcase bottom is provided with is divided into inlet area, outlet area to the bottom, the watchcase internal chamber wall is provided with the cushion cap contour with central baffle, central baffle and cushion cap provide the platform that piston mechanism is installed, the straight line of described half bowl-type filtrator, arc O-ring seal is corresponding with central baffle, the arc-shaped side of half bowl-type filtrator, arc O-ring seal is corresponding with the watchcase internal chamber wall, and described piston mechanism bottom is provided with installs the notch corresponding with half bowl-type filtrator, arc O-ring seal profile; Described piston mechanism is positioned at watchcase inner platform top, and half bowl-type filtrator, arc O-ring seal are installed between piston mechanism bottom and the platform.
Described half bowl-type filtrator upper end edge is provided with some locating flanges, and the piston mechanism bottom is provided with the groove that coincide with it.
Compared with prior art, adopted the device of the raising volumetric water meter metering quality that the utility model proposes, have following advantage: the half bowl-type filtrator of 1) setting up has larger water inlet area, reduced the intake pressure loss, prevented that impurity from entering the water meter measurement system, guarantees the normal operation of piston; 2) the half arc O-ring seal of setting up has cut off inlet area and the outlet area of water meter effectively, weeping can not occur.The utility model has improved structure, has improved the measuring accuracy of water meter.
Description of drawings:
Fig. 1 is an example structure schematic diagram that the utility model proposes.
Fig. 2 is the broken away view of Fig. 1 embodiment.
Embodiment:
Below in conjunction with accompanying drawing embodiment is elaborated: Fig. 1～Figure 2 shows that embodiment of the present utility model.Among the figure, a kind of device that improves volumetric water meter metering quality comprises watchcase 1, piston mechanism 2, half bowl-type filtrators 3, arc O-ring seal 4; The central baffle 11 that described watchcase 1 bottom is provided with is divided into inlet area 12, outlet area 13 to the bottom, watchcase 1 internal chamber wall is provided with the cushion cap contour with central baffle, central baffle and cushion cap provide the platform 15 that piston mechanism is installed, the straight line of described half bowl-type filtrator 3, arc O-ring seal 4 is corresponding with central baffle 11, the arc-shaped side of half bowl-type filtrator 3, arc O-ring seal 4 is corresponding with watchcase 1 internal chamber wall, and described piston mechanism 2 bottoms are provided with installs the notch corresponding with half bowl-type filtrator 3, arc O-ring seal 4 profiles; Described piston mechanism 4 is positioned at watchcase 1 inner platform 15 tops, and half bowl-type filtrator 3, arc O-ring seal 4 are installed between piston mechanism 2 bottoms and the platform 15.
Described half bowl-type filtrator upper end edge is provided with some locating flanges 31, and piston mechanism 2 bottoms are provided with the groove 21 that coincide with it.
The above has described embodiment of the present utility model by reference to the accompanying drawings; the structure that embodiment provides does not consist of restriction of the present utility model, and those skilled in the art make within the scope of the appended claims various distortion or revise all in protection domain in this area.
Claims (2)
1. a device that improves volumetric water meter metering quality comprises watchcase, piston mechanism, it is characterized in that: also have half bowl-type filtrator, arc O-ring seal; The central baffle that described watchcase bottom is provided with is divided into inlet area, outlet area to the bottom, the watchcase internal chamber wall is provided with the cushion cap contour with central baffle, central baffle and cushion cap provide the platform that piston mechanism is installed, the straight line of described half bowl-type filtrator, arc O-ring seal is corresponding with central baffle, the arc-shaped side of half bowl-type filtrator, arc O-ring seal is corresponding with the watchcase internal chamber wall, and described piston mechanism bottom is provided with installs the notch corresponding with half bowl-type filtrator, arc O-ring seal profile; Described piston mechanism is positioned at watchcase inner platform top, and half bowl-type filtrator, arc O-ring seal are installed between piston mechanism bottom and the platform.
2. raising volumetric water meter according to claim 1 measures the device of quality, and it is characterized in that: described half bowl-type filtrator upper end edge is provided with some locating flanges, and the piston mechanism bottom is provided with the groove that coincide with it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220330847 CN202853671U (en) | 2012-07-10 | 2012-07-10 | Device for improving metering quality of volumetric water meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220330847 CN202853671U (en) | 2012-07-10 | 2012-07-10 | Device for improving metering quality of volumetric water meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202853671U true CN202853671U (en) | 2013-04-03 |
Family
ID=47984855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220330847 Expired - Fee Related CN202853671U (en) | 2012-07-10 | 2012-07-10 | Device for improving metering quality of volumetric water meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202853671U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112179434A (en) * | 2020-09-28 | 2021-01-05 | 湖南常德牌水表制造有限公司 | Industrial piston positive displacement water meter |
-
2012
- 2012-07-10 CN CN 201220330847 patent/CN202853671U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112179434A (en) * | 2020-09-28 | 2021-01-05 | 湖南常德牌水表制造有限公司 | Industrial piston positive displacement water meter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 Termination date: 20190710 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |