CN203823346U - Plugging device for high-strength steel penstock hole - Google Patents
Plugging device for high-strength steel penstock hole Download PDFInfo
- Publication number
- CN203823346U CN203823346U CN201420269255.3U CN201420269255U CN203823346U CN 203823346 U CN203823346 U CN 203823346U CN 201420269255 U CN201420269255 U CN 201420269255U CN 203823346 U CN203823346 U CN 203823346U
- Authority
- CN
- China
- Prior art keywords
- penstock
- hole
- steel plate
- circular port
- preformed hole
- 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 - Lifetime
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 28
- 239000010959 steel Substances 0.000 title claims abstract description 28
- 230000000903 blocking effect Effects 0.000 claims description 12
- 210000003371 toe Anatomy 0.000 claims description 5
- 238000005728 strengthening Methods 0.000 claims description 3
- 238000003466 welding Methods 0.000 abstract description 8
- 238000010276 construction Methods 0.000 abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The utility model relates to a plugging device for a high-strengthen steel penstock hole. The plugging device comprises a reinforced steel plate, wherein the reinforced steel plate is fixed on the inner side of the wall of a steel penstock; a round hole is formed in the center of the reinforced steel plate; the round hole and a preformed hole formed in the pipe wall are concentric; internal threads are formed in the round hole; the diameter of the round hole is smaller than that of the preformed hole; a screw rod plug is embedded into the preformed hole and the round hole. According to the utility model, the screw rod plug is corporately used with the reinforced steel plate, so that the problem that the quality requirement can't be met by adopting the common welding padding way to block off the hole is solved, the situation that the steel penstock is damaged because of deep welding depth is avoided, and therefore, the construction quality can be improved; the plugging device is simple in structure and easy to operate and is economical and practical.
Description
Technical field
The utility model relates to a kind of blocking device, is specially a kind of high-strength steel penstock holes blocking device.
Background technique
Water power plant diversion tunnel penstock is because the hydraulic head pressure bearing is large, flow velocity is high, penstock adopts high-strength steel to make, penstock external wrapping concrete needs the concrete to building to carry out surface grouting after building, usual way is to utilize circular opening grouting reserved on penstock tube wall, the shutoff of hole later stage is difficult to meet large hydraulic head pressure and the high quality requirement that penstock bears with common welding filling mode, and the depth of weld causes damage to penstock deeply.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of high-strength steel penstock holes blocking device, can ensure high pressure steel pipe holes blocking quality, and simple in structure, easy operating, economical and practical is set.
For solving the problems of the technologies described above, the technological scheme that the utility model adopts is: a kind of high-strength steel penstock holes blocking device, comprise reinforcement steel plate, strengthen steel plate and be fixed on penstock tube wall inner side, strengthening steel plate center has circular port, and circular port is concentric with the preformed hole on tube wall, circular port car internal thread, circular port aperture is less than preformed hole, and screw mandrel plug is embedded in preformed hole and circular port.
The secondary bar external threading of screw mandrel plug front end, secondary bar tail end is fluted, and middle part mobile jib tail end is opened triangle groove, and mobile jib afterbody has rectangle square toes.
There is pad in groove outside, and pad is embedded in groove.
The high-strength steel penstock holes blocking device that the utility model provides, coordinate and strengthen steel plate use by screw mandrel plug, can solve holes blocking cannot meet quality requirement problem with common welding filling mode, and avoid the depth of weld deeply penstock to be caused the situation of damage, can improve construction quality.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is described in further detail:
Fig. 1 is schematic diagram before the shutoff of the utility model preformed hole.
Fig. 2 is the partial enlarged drawing A of Fig. 1.
Fig. 3 is the utility model screw mandrel stopper structure schematic diagram.
Fig. 4 is the utility model copper backing structural representation.
Fig. 5 is that the utility model uses schematic diagram.
Embodiment
Structure of the present utility model as Figure 1-4, a kind of high-strength steel penstock holes blocking device, comprise and strengthen steel plate 3, it is characterized in that, strengthen steel plate 3 and be fixed on penstock tube wall 1 inner side, strengthening steel plate 3 centers has circular port 4, circular port 4 is concentric with the preformed hole 2 on tube wall 1, circular port 4 car internal threads, circular port 4 apertures are less than preformed hole 2, and screw mandrel plug 5 is embedded in preformed hole 2 and circular port 4.
Secondary bar 51 external threadings of screw mandrel plug 5 front ends, secondary bar 51 tail ends are fluted 52, and mobile jib 53 tail ends in middle part are opened triangle groove, and mobile jib 53 afterbodys have rectangle square toes 54.
There is pad 6 in groove 52 outsides, and pad 6 is embedded in groove 52.
In the utility model, screw mandrel plug secondary bar 51 external threadings of 5 front ends and mutually mating with circular port 4 internal threads, it is to facilitate mobile jib 53 afterbodys and preformed hole 2 hole wall welding that mobile jib 53 tail ends are opened triangle groove, and mobile jib 53 afterbody square toes 54 are to be convenient to screw up with a wrench screw mandrel plug 5.
There is pad 6 in described groove 52 outsides, and pad 6 is embedded in groove 52.The preferred copper gasket of pad 6, copper gasket intensity is high, pliability good, is to avoid there is trickle gap between screw mandrel plug 5 and preformed hole 2, effectively stops that outside pressure water infiltrates in hole.
Described circular port 4 apertures are identical with secondary bar 51 external diameters of screw mandrel plug 5 front ends, and circular port 4 hole depths and secondary bar 51 are equal in length; Described mobile jib 53 external diameters are identical with preformed hole 2 apertures, and mobile jib 53 length equate with preformed hole 2 hole depths.
Implementation step of the present utility model is as follows: the reinforcement steel plate 3 that is welded with circular port 4 in penstock tube wall 1 inner side, circular port 4 is concentric with tube wall 1 preformed hole 2, screw mandrel plug 5 is screwed in preformed hole 2 and circular port 4, build penstock external wrapping concrete, build back-out screw mandrel plug 5 and carried out grouting construction, after grouting construction, clear up preformed hole 2 and circular port 4, again the screw mandrel plug 5 that is socketed with pad 6 screwed in preformed hole 2 and circular port 4 and tighten, by mobile jib 53 afterbodys and preformed hole 2 hole wall welding, welding sequence and weld seam meet welding standard, finally rectangle square toes 54 are cut off and polished flat.
Claims (3)
1. a high-strength steel penstock holes blocking device, comprise and strengthen steel plate (3), it is characterized in that, strengthen steel plate (3) and be fixed on penstock tube wall (1) inner side, strengthening steel plate (3) center has circular port (4), and circular port (4) is concentric with the preformed hole (2) on tube wall (1), circular port (4) car internal thread, circular port (4) aperture is less than preformed hole (2), and screw mandrel plug (5) is embedded in preformed hole (2) and circular port (4).
2. a kind of high-strength steel penstock holes blocking device according to claim 1, it is characterized in that: secondary bar (51) external threading of screw mandrel plug (5) front end, secondary bar (51) tail end fluted (52), middle part mobile jib (53) tail end is opened triangle groove, and mobile jib (53) afterbody has rectangle square toes (54).
3. a kind of high-strength steel penstock holes blocking device according to claim 2, is characterized in that: there is pad (6) in groove (52) outside, and pad (6) is embedded in groove (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420269255.3U CN203823346U (en) | 2014-05-26 | 2014-05-26 | Plugging device for high-strength steel penstock hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420269255.3U CN203823346U (en) | 2014-05-26 | 2014-05-26 | Plugging device for high-strength steel penstock hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203823346U true CN203823346U (en) | 2014-09-10 |
Family
ID=51478847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420269255.3U Expired - Lifetime CN203823346U (en) | 2014-05-26 | 2014-05-26 | Plugging device for high-strength steel penstock hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203823346U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351670A (en) * | 2015-11-23 | 2016-02-24 | 马玉荣 | Sewer line end sealing column |
| CN111591391A (en) * | 2020-05-20 | 2020-08-28 | 上海外高桥造船有限公司 | Reinforcing device for reinforcing lower water tank sectional lower opening |
-
2014
- 2014-05-26 CN CN201420269255.3U patent/CN203823346U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105351670A (en) * | 2015-11-23 | 2016-02-24 | 马玉荣 | Sewer line end sealing column |
| CN111591391A (en) * | 2020-05-20 | 2020-08-28 | 上海外高桥造船有限公司 | Reinforcing device for reinforcing lower water tank sectional lower opening |
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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: 20140910 |