CN202814481U - Novel water meter shell - Google Patents
Novel water meter shell Download PDFInfo
- Publication number
- CN202814481U CN202814481U CN 201220544167 CN201220544167U CN202814481U CN 202814481 U CN202814481 U CN 202814481U CN 201220544167 CN201220544167 CN 201220544167 CN 201220544167 U CN201220544167 U CN 201220544167U CN 202814481 U CN202814481 U CN 202814481U
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- CN
- China
- Prior art keywords
- valve rod
- lining
- water
- housing
- shell body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a novel water meter shell which comprises a shell body. A water inlet and a water outlet are formed in the shell body. A metering device is arranged on a channel between the water inlet and the water outlet, inside the shell body. A switching valve is arranged on the water inlet or the water outlet and mainly comprises a valve core and a valve rod. A valve rod hole is formed in the shell body corresponding to the valve rod. A lining which is made of rust resistant materials is arranged in the valve rod hole. The valve rod penetrates through the lining and extends outside the shell body. A seal ring is sleeved on the rod body, corresponding to the inner wall of the lining, of the valve rod. The outer wall of the lining and the shell body are connected in a threaded mode. An inward concave annular step surface is arranged at the upper end of the valve rod hole. An annular flange is arranged on the lining corresponding to the step surface. The annular seal ring is arranged in the step surface. When the novel water shell is assembled, the lining is installed on the shell body in a spinning mode through threads and the annular flange of the lining presses the annular seal ring and enables the annular seal ring to extend along the horizontal direction. According to the threads between the outer wall of the lining and the shell body, fine threads are preferably adopted and good water seal effect is achieved. The threads and the annular seal ring on the upper portion of the valve rod hole are matched, and therefore the novel water meter shell is good in water seal effect and ensures normal utilization of a water meter.
Description
Technical field
The utility model relates to the watchcase that a kind of water meter of metering user water consumption, particularly water meter are used.
Background technology
Its water inlet or water outlet at housing of the watchcase of water meter mostly is provided with the switch valve that can automatically open or close, the valve rod of this switch valve stretches out housing and connects with the respective drive device, above-mentioned drive unit actuate valve stem is rotated, thereby drive the spool action of water inlet or water outlet, realize the opening and closing of water meter, above-mentioned water meter case is generally made by copper material, has antirust and wear-resisting characteristics, sealing is better, but cost is higher; The housing that adopts ferrous material to make is also arranged now, but the corrosion of ferrous material own is more serious, the position that cooperates with housing of valve rod especially, corrosion seriously causes the sealing reduction, the serviceable life of reduction water meter, has a strong impact on result of use.
The technical scheme that is embedded copper lining in the valve rod hole of irony housing is also arranged at present, but because the sealing between lining and housing is relatively poor, cause being difficult to apply.
Summary of the invention
Task of the present utility model is for above-mentioned the deficiencies in the prior art, good sealing effect between a kind of lining and housing is provided, is beneficial to the new water meter watchcase that popularization is answered.
Its technical solution is as follows: the new water meter watchcase, it comprises housing, housing is provided with water inlet and water delivering orifice, the housing inherence is provided with measuring apparatus by water inlet to the passage of water delivering orifice, above-mentioned water inlet or water delivering orifice are furnished with switch valve, this switch valve mainly is comprised of spool and valve rod, offer valve rod hole corresponding to valve rod on the housing, be provided with the lining that the corrosion resistant material is made in the valve rod hole, valve rod passes above-mentioned lining and stretches out housing, valve rod has O-ring seal corresponding to cover on the body of rod of lining inwall, be thread connection between described lining outer wall and housing, the upper end of valve rod hole has the annular table terrace of indent, and the corresponding above-mentioned step surface of lining is provided with annular flange flange, places grommet type seals in the above-mentioned step surface.
The utility model is when assembling, described lining passes through the screw thread spinning on housing, the annular flange flange compressing grommet type seals of lining, it is extended transversely, screw thread between above-mentioned lining outer wall and housing should adopt the filament screw thread, and better water-stop effect can be arranged, and above-mentioned screw thread cooperates with the grommet type seals on valve rod hole top, can so that the utility model is obtained preferably water-stop effect, guarantee the normal use of water meter.
As improvement of the present utility model, correspondingly on above-mentioned valve rod outer wall and the lining offer the annular groove that the cross section is rectangle, annular retaining ring is set in the groove.This structure can prevent that in use valve rod is shifted up and down.
Above-mentioned lining can be copper sheathing.
Below in conjunction with accompanying drawing the utility model is done further description:
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of the utility model.
Fig. 2 is partial enlarged drawing in the above-mentioned embodiment.
Embodiment
The following content of not addressing all can adopt or use for reference prior art.
Such as Fig. 1, shown in Figure 2, the utility model comprises housing 1, housing 1 is provided with water inlet 2 and water delivering orifice 3, housing 1 inherence is provided with measuring apparatus 4 by water inlet 2 to the passage of water delivering orifice 3, above-mentioned water inlet or water delivering orifice are furnished with switch valve 5, this switch valve 5 mainly is comprised of spool 6 and valve rod 7, offer valve rod hole 8 corresponding to valve rod 7 on the housing 1, be provided with the copper lining 9 that the corrosion resistant material is made in the valve rod hole 8, valve rod passes above-mentioned lining 9 and stretches out housing 1, valve rod 7 has O-ring seal 10 corresponding to the inner wall sleeve of lining 9, be thread connection between described lining outer wall and housing, the upper end of valve rod hole 8 has the annular table terrace of indent, and the corresponding above-mentioned step surface of lining is provided with annular flange flange 11, places grommet type seals 12 in the above-mentioned step surface.Correspondingly on above-mentioned valve rod outer wall and the lining offer the annular groove that the cross section is rectangle, annular retaining ring circle 13 is set in the groove.
It is to be noted, the utility model includes but are not limited to above a kind of embodiment, also can be located at the water inlet such as switch valve 5, its spool 6 also can adopt other apparent structures in the prior art, and copper lining 9 also can adopt the effective material of other anti-corrosions (such as rigid plastic etc.) to make.
Claims (2)
1. new water meter watchcase, it comprises housing, housing is provided with water inlet and water delivering orifice, the housing inherence is provided with measuring apparatus by water inlet to the passage of water delivering orifice, above-mentioned water inlet or water delivering orifice are furnished with switch valve, this switch valve mainly is comprised of spool and valve rod, offer valve rod hole corresponding to valve rod on the housing, be provided with the lining that the corrosion resistant material is made in the valve rod hole, valve rod passes above-mentioned lining and stretches out housing, valve rod has O-ring seal corresponding to cover on the body of rod of lining inwall, it is characterized in that: be thread connection between described lining outer wall and housing, the upper end of valve rod hole has the annular table terrace of indent, and the corresponding above-mentioned step surface of lining is provided with annular flange flange, places grommet type seals in the above-mentioned step surface.
2. new water meter watchcase according to claim 1 is characterized in that: correspondingly on above-mentioned valve rod outer wall and the lining offer the annular groove that the cross section is rectangle, annular retaining ring is set in the groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220544167 CN202814481U (en) | 2012-10-23 | 2012-10-23 | Novel water meter shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220544167 CN202814481U (en) | 2012-10-23 | 2012-10-23 | Novel water meter shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202814481U true CN202814481U (en) | 2013-03-20 |
Family
ID=47873342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220544167 Expired - Fee Related CN202814481U (en) | 2012-10-23 | 2012-10-23 | Novel water meter shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202814481U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110064893A (en) * | 2019-04-16 | 2019-07-30 | 宁波宁水仪表有限公司 | A kind of stainless steel water meter watchcase and production technology |
-
2012
- 2012-10-23 CN CN 201220544167 patent/CN202814481U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110064893A (en) * | 2019-04-16 | 2019-07-30 | 宁波宁水仪表有限公司 | A kind of stainless steel water meter watchcase and production technology |
| CN110064893B (en) * | 2019-04-16 | 2020-05-15 | 宁波宁水仪表有限公司 | Stainless steel water meter case and production process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20130320 Termination date: 20131023 |