CN201955199U - Pressure testing device for tail end of large-caliber water pipe - Google Patents
Pressure testing device for tail end of large-caliber water pipe Download PDFInfo
- Publication number
- CN201955199U CN201955199U CN2010206225222U CN201020622522U CN201955199U CN 201955199 U CN201955199 U CN 201955199U CN 2010206225222 U CN2010206225222 U CN 2010206225222U CN 201020622522 U CN201020622522 U CN 201020622522U CN 201955199 U CN201955199 U CN 201955199U
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- pressure testing
- steel
- rear seat
- water pipe
- testing device
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Abstract
The utility model relates to a pressure testing device for the tail end of a large-caliber water pipe, comprising a pressure testing blind plate, a steel-wood rear seat and an original soil area, and further comprising a jack, wherein the pressure testing blind plate is sheathed on a pipe opening at the tail end; the steel-wood rear seat is arranged on an original soil area wall opposite to the pipe opening at the tail end; and the jack is supported between the pressure testing blind plate and the steel-wood rear seat. In the pressure testing device, the extending length of the jack can be adjusted in time according to the displacement amount of the steel-wood rear seat when the steel-wood rear seat is in stressing, normal sealing of the pressure testing blind plate for the tail end of the water pipe can be ensured, and not only is the problem that the pressure testing blind plate with the original soil and steel-wood structure type rear seat is easy to slip off so as to cause pressure testing failure solved, but also the defects that the concrete structure type rear seat is too high in cost and inconvenient to remove are avoided. The pressure testing device has the advantages that the structure is simple and reasonable, the cost is low, the installation and removal are convenient, the compensation capability is strong, the use is safe and reliable and the like, is a pressure testing device of a compensation type rear seat, and is most suitable for pressure testing at the tail end of the large-caliber water pipe.
Description
Technical field
The utility model relates to the terminal pressure testing device that must earlier the terminal mouth of pipe be stopped up when carrying out pipeline pressure test piecemeal in a kind of heavy caliber water supply water pipe construction, belongs to the feedwater piping field.
Background technology
The urban water supply pipeline adopts socket joint cushion rubber interconnection technique more at present, water-tight in order to ensure seal for pipe joints, all must be piecemeal in work progress the pipeline of new installation be added the water pressure testing, so must will just can carry out pressure testing after the terminal obstruction of water pipe earlier, but because of the diameter of water supply line very big, because this terminal the obstruction is interim behavior, can only be to use the removable jew packoff again, this removable jew packoff is also referred to as terminal pressure testing device.Present terminal pressure testing device mainly contains two kinds, and first kind of pressure testing device mainly is made up of the back seat that PRESSURE TESTING BLIND FLANGE adds push rod and xoncrete structure; Second kind of pressure testing device mainly adds the back seat that push rod and original soil add steel-wood structure by PRESSURE TESTING BLIND FLANGE and forms.First kind of pressure testing device can't go wrong when boosting, but xoncrete structure back seat cost is too high as long as checking computations are correct, removes also inconvenient.It is low and remove advantages such as convenient that the back seat that the original soil of second kind of pressure testing device adds steel-wood structure has cost, but original soil meeting compressive deformation when pipeline boosts, can cause PRESSURE TESTING BLIND FLANGE to skid off when deflection is excessive, cause work pressure test failure, even cause security incident and substantially need not from the terminal mouth of pipe.
Summary of the invention
The purpose of this utility model is in order to overcome the weak point of above-mentioned two kinds of pressure testing devices, a kind of the simple and reasonable of compensation ability that have to be provided, and cost is low, and assembling and disassembling is convenient, the terminal pressure testing device of safe and reliable heavy caliber water pipe.
The terminal pressure testing device of heavy caliber water pipe of the present utility model, its structure comprises PRESSURE TESTING BLIND FLANGE, steel wood back seat, the original soil district, also include lifting jack, described PRESSURE TESTING BLIND FLANGE is sleeved on the terminal mouth of pipe, steel wood back seat is installed on the original soil wall in original soil district on terminal mouth of pipe opposite, and lifting jack is supported between PRESSURE TESTING BLIND FLANGE and the wooden back seat of steel.
In order to improve PRESSURE TESTING BLIND FLANGE intensity, can have additional metal mat, described metal mat pad is between PRESSURE TESTING BLIND FLANGE and lifting jack.
Above-mentioned steel wood back seat comprises ribbing steel plate and two row's sleepers, described two row's sleepers respectively with upright to be horizontally arranged on the original soil wall, the ribbing steel plate is fitted on the sleeper again.
The terminal pressure testing device of heavy caliber water pipe of the present utility model, owing between PRESSURE TESTING BLIND FLANGE and steel wood back seat, select for use lifting jack to make push rod, displacement when can be according to steel wood back seat stressed is in time adjusted the extension elongation of lifting jack, so can guarantee the normal sealing of PRESSURE TESTING BLIND FLANGE to the water pipe end.For the distance between PRESSURE TESTING BLIND FLANGE and the steel wood back seat when big, can be in Metallic rod of end serial connection of lifting jack.Finish pipeline added the water pressure testing after, ponding in the atmospheric valve blow-down pipe reduces lifting jack length, can dismantle this device easily in order to use next time.Both having solved original soil adds steel-wood structure formula back seat and exists the PRESSURE TESTING BLIND FLANGE to skid off easily and the problem that causes the pressure testing failure.Avoided xoncrete structure formula back seat cost too high and remove shortcoming such as inconvenience again.Advantages such as have simple and reasonablely, cost is low, and assembling and disassembling is convenient, and compensation ability is strong, and is safe and reliable are a kind of pressure testing devices of compensation back seat, and the terminal pressure testing of the most suitable heavy caliber water pipe is used.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of the present utility model.
Embodiment
Referring to accompanying drawing, 1 among the figure is the terminal mouth of pipe of heavy caliber water pipe, the 2nd, and PRESSURE TESTING BLIND FLANGE, the 3rd, the atmospheric valve on the PRESSURE TESTING BLIND FLANGE, the 4th, metal mat, the 5th, lifting jack, the 6th, ribbing steel plate, the 7th, transversely arranged row's sleeper, the 8th, upright to another row's sleeper of arranging, the 9th, the original soil wall in original soil district.Described PRESSURE TESTING BLIND FLANGE 2 is sleeved on the terminal mouth of pipe 1, and steel wood back seat is installed on the original soil wall 9 in original soil district on terminal mouth of pipe opposite, and lifting jack 5 is supported between PRESSURE TESTING BLIND FLANGE 2 and the wooden back seat of steel.The extension elongation of adjusting lifting jack 5 can compensate the displacement of steel wood back seat when stressed, guarantees the ponding of PRESSURE TESTING BLIND FLANGE 2 and successful pressure testing.
In order to improve PRESSURE TESTING BLIND FLANGE intensity, can have additional metal mat 4, described metal mat 4 pads are between PRESSURE TESTING BLIND FLANGE 1 and lifting jack 5.
Above-mentioned steel wood back seat comprises ribbing steel plate 6 and two row's sleepers 7 and 8, described two row's sleepers 8 and 7 respectively with upright to be horizontally arranged on the original soil wall 9, ribbing steel plate 6 is fitted on the transversely arranged sleeper 7 again.
Claims (3)
1. the terminal pressure testing device of a heavy caliber water pipe, comprise PRESSURE TESTING BLIND FLANGE, steel wood back seat and original soil district, it is characterized in that also including lifting jack, described PRESSURE TESTING BLIND FLANGE is sleeved on the terminal mouth of pipe, steel wood back seat is installed on the original soil district wall on terminal mouth of pipe opposite, and lifting jack is supported between PRESSURE TESTING BLIND FLANGE and the steel wood back seat.
2. the terminal pressure testing device of heavy caliber water pipe as claimed in claim 1 is characterized in that also including metal mat, and described metal mat pad is between PRESSURE TESTING BLIND FLANGE and jack bar.
3. the terminal pressure testing device of heavy caliber water pipe as claimed in claim 1 or 2 is characterized in that described steel wood back seat comprises ribbing steel plate and two row's sleepers, described two row's sleepers on the original soil wall respectively with upright to transversely arranged after, the ribbing steel plate is fitted on the sleeper again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206225222U CN201955199U (en) | 2010-11-24 | 2010-11-24 | Pressure testing device for tail end of large-caliber water pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206225222U CN201955199U (en) | 2010-11-24 | 2010-11-24 | Pressure testing device for tail end of large-caliber water pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201955199U true CN201955199U (en) | 2011-08-31 |
Family
ID=44499307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206225222U Expired - Lifetime CN201955199U (en) | 2010-11-24 | 2010-11-24 | Pressure testing device for tail end of large-caliber water pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201955199U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105135056A (en) * | 2015-06-09 | 2015-12-09 | 广东工业大学 | Pressure test back supporting device for large-diameter water supply and drainage pipeline |
-
2010
- 2010-11-24 CN CN2010206225222U patent/CN201955199U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105135056A (en) * | 2015-06-09 | 2015-12-09 | 广东工业大学 | Pressure test back supporting device for large-diameter water supply and drainage pipeline |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110831 |
|
| CX01 | Expiry of patent term |