CN1126942C - Displacement water meter with rotating piston - Google Patents
Displacement water meter with rotating piston Download PDFInfo
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- CN1126942C CN1126942C CN 01105259 CN01105259A CN1126942C CN 1126942 C CN1126942 C CN 1126942C CN 01105259 CN01105259 CN 01105259 CN 01105259 A CN01105259 A CN 01105259A CN 1126942 C CN1126942 C CN 1126942C
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- water
- piston
- delivering orifice
- box assembly
- water inlet
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Abstract
The present invention relates to a volumetric water meter with a rotary piston, which comprises a casing, a volumetric metering mechanism with a rotary piston and a wheel type counter and is characterized in that a mechanism capable of changing the direction of water is arranged between the casing and the volumetric metering mechanism with a rotary piston. The meter casing can be made into an integral structure by the scheme, so the meter casing has simple structure; moreover, manufacturing technology is not complex, the water meter is easy to seal, and the interference of external magnetic fields can be prevented.
Description
The present invention relates to a kind of device of measuring the flow of the fluid that passes through instrument continuously, particularly relate to a kind of displacement water meter with rotating piston.
Water meter is a kind of water metering device commonly used.One application number is that 99243406.8 patent documentation discloses a kind of high precision positive displacement piston meter, and it mainly is made of upper shell 103, lower house 104, hydroecium system 300 sum counter systems 200.Be provided with hydroecium system 300 in the water meter lower house 104, this system 300 is by hydroecium body 304, piston 305, dividing plate 308, water box cover 302, driving lever 306, output arm 307, shift fork 301, O-ring seal 303, filter screen 307, pressure ring 310 and return and end valve 311 and constitute, described piston 305 is positioned at hydroecium body 304, the driving lever 306 of piston 305 circle centre positions is coupled with rotating output arm 307, the shift fork 301 at heart place, water box cover 302 garden, and the protruding axle 212 of the T shape in shift fork 301 and the counter system 200 is of coupled connections; Counters design system 200 in water Pu housing 103, this counter system is that a number of significant figures is nine a character wheel formula counter system, it is assembled by reduction gearing assembly sum counter assembly, detachable between two assemblies, described reduction gearing assembly is made of gear mount support 213, the protruding axle 212 of T shape, worm screw 216,1# composite gear 214,2# composite gear 215; Described counter assembly is made up of counter housing 202, housing flap 203, spiral gear 206, digital great wheel 209, seven digital wheels 207, seven carry handsetting gears 208, digital wheel bracket cover 210, final drive shaft assembly 211, display piece 204, O-ring seal 205, seal rubber sleeve 218 and sealing gaskets 201.This positive displacement piston meter has overcome that rotor water gauge slip-stream amount is big, precision is low, reading is directly perceived, be difficult for defective such as installation, but, this flowmeter still has the following disadvantages: because current enter from this table bottom water inlet, flow out from the top water delivering orifice again by the table body, and necessary counter system and the hydroecium system placed in the watchcase, thereby this watch shell must be made of upper and lower casing, complex structure, be difficult for to make, cost is higher, and the watch shell sealing difficulty is bigger up and down, and weeping usually takes place.In addition, current must produce water quality and pollute through counter system, and particularly concerning water purification, this point is just particularly important, and should reduce the touch opportunity of current and water meter parts as far as possible, pollutes to reduce.In addition, also have a kind of rotary-piston positive displacement dry-type meter, the water delivering orifice on its piston is positioned at piston side wall, and current are also without counter, though so also can reduce contaminated water flow, its watch shell is irregularly shaped, makes same complicated.
Fundamental purpose of the present invention is to provide the displacement water meter with rotating piston that a kind of watchcase is simple in structure, shop characteristic good, cost of manufacture is low at the situation of above-mentioned prior art, secondary objective of the present invention is to realize dual seal, prevents from better that external magnetic field is dried to scratch.
The solution of the present invention is this rotary-piston volumetric water meter, comprise housing, rotary-piston volumetric metering mechanism, character wheel formula counter, it is characterized in that: between described housing and rotary-piston volumetric metering mechanism, be provided with a mechanism that can change the direction of a stream of water.
The described mechanism that changes the direction of a stream of water can be a divided flow box assembly, this divided flow box assembly includes water inlet and water delivering orifice and axial water inlet and water delivering orifice radially, described axial water inlet is connected with described radially water delivering orifice, and described axial water delivering orifice is connected with described radially water inlet; Between divided flow box assembly and described rotary-piston volumetric metering mechanism, be provided with detent mechanism, and this divided flow box assembly is provided with water sealing device; Correspondingly, described housing is a whole mechanism, and is provided with water inlet and water delivering orifice at the corresponding divided flow box assembly of this housing water inlet and water delivering orifice place radially; Correspondingly, have water delivering orifice and water inlet corresponding water inlet and the water delivering orifice axial in described rotary-piston volumetric metering mechanism bottom with described divided flow box assembly.
Described rotary-piston volumetric metering mechanism and described character wheel formula counter can split sealing, described rotary-piston volumetric metering mechanism is encapsulated by housing, described character wheel formula counter is encapsulated by translucent cover, and connects one by a coupling ring between the two.
In described coupling ring, can be embedded with anti-magnet ring.
Adopt such scheme, watchcase just can be made an one-piece construction, makes the simple in structure of watchcase, and manufacturing process is also uncomplicated, and it is also easy to seal water meter, and can prevent that external magnetic field is dried and scratch.
Description of drawings:
Fig. 1 is the one-piece construction synoptic diagram (analysing and observe) of rotary-piston volumetric water meter embodiment of the present invention;
Fig. 2 is the one-piece construction decomposing schematic representation of rotary-piston volumetric water meter embodiment of the present invention;
Fig. 3 is prior art constructions synoptic diagram (analysing and observe).
The present invention is done further open below in conjunction with above-mentioned accompanying drawing.
As shown in Figure 1, 2, displacement water meter with rotating piston of the present invention comprises housing 100, rotary-piston volumetric metering mechanism 300, character wheel formula counter 200.In addition, between rotary-piston volumetric metering mechanism 300 and housing 100 bottoms, be provided with a mechanism that can change the direction of a stream of water, this mechanism can be a divided flow box assembly 400, this divided flow box assembly 400 includes water inlet 401 and water delivering orifice 402 radially, axial water inlet 403 and water delivering orifice 404, wherein, axial water inlet 403 is connected with water delivering orifice 402 radially, and axially water delivering orifice 404 is connected with water inlet 401 radially.In order to guarantee the fixing of relative position between divided flow box assembly 400 and the rotary-piston volumetric metering mechanism 300, and then guarantee that current are unimpeded, to between the two, be provided with detent mechanism, this programme discloses a kind of detent mechanism, as illustrated in fig. 1 and 2, axis part at divided flow box assembly 400 has a center pit 407, axis part in rotary-piston volumetric metering mechanism 300 is provided with a locating shaft 406, when the two contacts, locating shaft 406 is inserted in the center pit 407, thereby has guaranteed the location, axle center of the two.In addition, in order to prevent the two relative rotation, on the two surface of contact, at least also the another one point of fixity should be arranged, as shown in Figure 2, can have a pilot hole 409 on week in the side of divided flow box assembly 100, appropriate section in rotary-piston volumetric metering mechanism 300 also has a pilot hole 307, establish a locating shaft 408 again, the two ends of locating shaft 408 are installed in respectively in two pilot holes 409,307, thereby have guaranteed the accurate location between divided flow box assembly 400 and the rotary-piston volumetric metering mechanism 300.In addition, for accurate metering, also must be provided with corresponding water sealing device.This water sealing device can be located at divided flow box assembly 400 radially on the water delivering orifice 402 and axially on the water delivering orifice 403; Can certainly be arranged on the radially water inlet 401 of divided flow box assembly 400 and axially on the water delivering orifice 404, but the latter is complicated on technology.The concrete structure of this water sealing device divided flow box assembly 300 as shown in Figure 2 is radially shown in the water delivering orifice 402.Around water delivering orifice 402 radially, have an annular groove, then cushion rubber 405 put into, cushion rubber 405 outstanding groove parts, like this, by between housing 100 inwalls and the divided flow box assembly 400 to cushion rubber 405 extruding, realization water-stop function.The sealing of axial water inlet 403 is identical with it, also is provided with cushion rubber 411, and it is to realize with rotary-piston volumetric metering mechanism 300 mutual extrusion by divided flow box assembly 400.
The mechanism of encapsulation water meter is made of from bottom to top 0 RunddichtringO 501, gland bonnet 502 and compacting ring 503.0 RunddichtringO 501 is enclosed within gland bonnet 502 front ends, guarantees that water can not flow to beyond the watchcase, and then compresses with compacting ring 503, can thoroughly prevent the sealing leakage.The housing 100 of this one just is easy to sealed, if housing is made of upper and lower casing, then intermediate seal is very difficult, reveal easily, and also the watchcase complex manufacturing technology, complex structure, cost is higher.Character wheel formula counter 200 is by translucent cover 201 encapsulation, thus the dual seal of realization character wheel formula counter 200 and rotary-piston volumetric metering mechanism 300.With a coupling ring 6 the two one that is connected and fixed is got final product again at last.
In order to match with divided flow box assembly 400, this programme also redesigns the intake-outlet of rotary-piston volumetric metering mechanism 300.Existing rotary-piston volumeter, its water inlet generally is positioned at the flowmeter bottom, and water delivering orifice is positioned at flowmeter top or side, and this programme all designs bottom in rotary-piston volumetric metering mechanism 300 to water inlet and water delivering orifice, to match with divided flow box assembly 400, to finish the object of the invention, as shown in Figure 1.
In order to prevent surreptitiously water phenomenon, this programme has also been installed a non-return cover 410 at radially water inlet 401 places of divided flow box assembly 400, and it has guaranteed that current can only enter from water inlet 401, and can not go out from water inlet 401.Thereby prevent that some people from deliberately oppositely installing water meter, makes counter 200 reverse rotations.
The course of work of displacement water meter with rotating piston of the present invention is such: water (flow) direction is shown in arrow among Fig. 1, water flows into water meter from water meter case 100 water inlets 101, the radially water inlet 401 of divided flow box assembly 400 of flowing through, it is up along divided flow box assembly 400 axial water delivering orifices 404 to change direction then, water inlet 301 through rotary-piston volumetric metering mechanism 300 enters rotary-piston volumetric metering mechanism 300, rotary-piston volumetric metering mechanism 300 inner carriers 302 begin to rotate under water impact, piston 302 drives dead man 303 rotations, dead man 303 drives fork 304 again and rotates, fork 304 is fixedlyed connected with the magnetic transmitting block 305 that little magnetic patch is installed, thereby magnetic transmitting block 305 has also rotated, the magnetic transmitting block 305 that rotates is transferred to different magnetic signals on the magnetic-inductive device of character wheel formula counter 200, and character wheel formula counter 200 begins counting.Along with constantly passing through of current, the piston 302 in the rotary-piston volumetric metering mechanism 300 is with regard to constantly rotation, and magnetic signal just constantly sends to counter 200, so just reached the purpose of measurement discharge.The water that flows into rotary-piston volumetric metering mechanism 300 flows out by flowmeter water delivering orifice 306, again through divided flow box assembly water inlet 403 ingoing stream case assemblies 400 radially, after divided flow box assembly 400 axial water delivering orifices 402 and water meter case water delivering orifice 102 flow out water meters.
Scratch in order to prevent that external magnetic field is dried, can be embedded with antimagnetic ring 601 in coupling ring 6, as shown in Figure 1, this anti-magnet ring 601 can be a pig iron ring.What like this, magnetic emission ring 601 can prevent external magnetic field or artificial magnetic field of making driedly scratches magnetic-inductive device and influences water meter and run well.
The present invention makes water meter under the situation that guarantees its precision by a series of improvement, becomes simple in structure, is convenient to make, and is convenient to sealing, and in addition, the anti-dried ability of scratching of outer magnetic is also strengthened greatly.
Claims (8)
1. displacement water meter with rotating piston, comprise housing (100), rotary-piston volumetric metering mechanism (300) and character wheel formula counter (200), it is characterized in that: between described housing (100) and rotary-piston volumetric metering mechanism (300), be provided with a mechanism that can change the direction of a stream of water; The described mechanism that changes the direction of a stream of water is a divided flow box assembly (400), this divided flow box assembly (400) includes water inlet (401) and water delivering orifice (402) and axial water inlet (403) and water delivering orifice (404) radially, described axial water inlet (403) is connected with described radially water delivering orifice (402), and described axial water delivering orifice (404) is connected with described radially water inlet (401); Between divided flow box assembly (400) and described rotary-piston volumetric metering mechanism (300), be provided with detent mechanism, and this divided flow box assembly (400) is provided with water sealing device; Correspondingly, described housing (100) is a whole mechanism, and locates to be provided with water inlet (101) and water delivering orifice (102) at the corresponding divided flow box assembly of this housing (100) (400) water inlet (401) and water delivering orifice (402) radially; Correspondingly, have water delivering orifice (404) and water inlet (403) corresponding water inlet (301) and the water delivering orifice (302) axial in described rotary-piston volumetric metering mechanism (300) bottom with described divided flow box assembly.
2. displacement water meter with rotating piston as claimed in claim 1, it is characterized in that: described rotary-piston volumetric metering mechanism (300) and described character wheel formula counter (200) split sealing, described rotary-piston volumetric metering mechanism (300) is encapsulated by housing (100), described character wheel formula counter (200) is encapsulated by translucent cover (201), and connects one by a coupling ring (6) between the two.
3. displacement water meter with rotating piston as claimed in claim 1 is characterized in that: described water sealing device is arranged on divided flow box assembly (400) radially water delivering orifice (402) and circumferential cushion rubber (405) and the cushion rubber (411) of axial water inlet (403).
4. displacement water meter with rotating piston as claimed in claim 1 is characterized in that: described water sealing device is arranged on divided flow box assembly (400) radially water inlet (404) and the axial circumferential cushion rubber of water delivering orifice (401).
5. displacement water meter with rotating piston as claimed in claim 2 is characterized in that: the device of described housing (100) encapsulation rotary-piston volumetric metering mechanism (300) includes O RunddichtringO (501), gland bonnet (502), compacting ring (503) from bottom to top.
6. as claimed in claim 1 revolving amassed the formula water meter, and it is characterized in that: the radially water inlet (401) of described divided flow box assembly (400) locates to be provided with non-return cover (410).
7. the described displacement water meter with rotating piston of claim 2 is characterized in that: be embedded with antimagnetic ring (601) in described coupling ring (6).
8. displacement water meter with rotating piston as claimed in claim 7, its domestic animal is levied and is: described anti-magnet ring (601) is the pure iron ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01105259 CN1126942C (en) | 2001-01-19 | 2001-01-19 | Displacement water meter with rotating piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01105259 CN1126942C (en) | 2001-01-19 | 2001-01-19 | Displacement water meter with rotating piston |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1299963A CN1299963A (en) | 2001-06-20 |
| CN1126942C true CN1126942C (en) | 2003-11-05 |
Family
ID=4654344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01105259 Expired - Fee Related CN1126942C (en) | 2001-01-19 | 2001-01-19 | Displacement water meter with rotating piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1126942C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2893125B1 (en) * | 2005-11-10 | 2008-06-06 | Sappel Soc Par Actions Simplif | CHAMBER OF CYLINDRICAL MEASUREMENT OF LIQUID COUNTER |
| CN100451569C (en) * | 2007-02-09 | 2009-01-14 | 宁波东海仪表水道有限公司 | Water meter of current rush prevention drive axle |
| CN111750949B (en) * | 2020-07-07 | 2022-03-08 | 河南航天液压气动技术有限公司 | Two-dimensional bidirectional flowmeter |
| CN112082612A (en) * | 2020-08-28 | 2020-12-15 | 王红伍 | Rotary piston positive displacement water meter |
-
2001
- 2001-01-19 CN CN 01105259 patent/CN1126942C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1299963A (en) | 2001-06-20 |
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| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| AR01 | Abandonment of patent right to avoid double patenting |
According to article 9 of the patent law and article 13 of the detailed rules for the implementation of the patent law: 1105259.7 of the invention patents in this issue as a notice of authorization, and at the same time corresponding to the 01210311.X utility model patent to be given up, and in the 19 volume of the 45 issue of the new type of communique on the patent right to abandon the announcement. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20031105 Termination date: 20140119 |