CN2403507Y - Self-closing device for drainage and irrigation water delivery pipe - Google Patents
Self-closing device for drainage and irrigation water delivery pipe Download PDFInfo
- Publication number
- CN2403507Y CN2403507Y CN 00229113 CN00229113U CN2403507Y CN 2403507 Y CN2403507 Y CN 2403507Y CN 00229113 CN00229113 CN 00229113 CN 00229113 U CN00229113 U CN 00229113U CN 2403507 Y CN2403507 Y CN 2403507Y
- Authority
- CN
- China
- Prior art keywords
- outlet pipe
- enclosing cover
- port
- hole
- obturator
- 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 relates to a self-closing device for drainage and irrigation water delivery pipes, which is especially suitable for the sealing of the water outlet of a drainage and irrigation buried type water delivery pipes. The utility model is composed of an outlet pipe and an outer cover which is screwed on the outlet pipe. A flexible seal pad is arranged between the outlet pipe and the outer cover. The chord of two ends of the pad is larger than the inner diameter of the end mouth of the outlet pipe. The pad can not be extruded in any event, and the gaps of the outer cover and the outlet pipe can be blocked off. Therefore, the utility model has good sealing effect, and can not be damaged easily.
Description
The present invention relates to the obturator of irrigation and drainage water pipe, be specially adapted to delivery port airtight of the buried water delivery hidden pipe of irrigation and drainage.
The airtight of known buried water-supply-pipe delivery port is made up of seal washer and round plastic cover plate and annular plastics lid hoop, when delivery port need seal delivery port, above-mentioned locking device is tightened on the outlet pipe.But because pressure is bigger in the water-supply-pipe, only depending on the packing ring that screws lid hoop and the said equipment is to play good sealing effectiveness, still has many water to emerge from locking device, has caused the waste of water resource.
The purpose of this invention is to provide a kind of good sealing effect be used for the irrigation and drainage water-supply-pipe from obturator.
The present invention seeks to be achieved through the following technical solutions, thisly form by outlet pipe and the enclosing cover that screws on outlet pipe from obturator, the approaching port internal diameter of outlet pipe and enclosing cover is less than other internal diameters everywhere of outlet pipe, in outlet pipe and the enclosing cover flexible gasket is arranged, the string between the sealing gasket two-end-point is greater than the internal diameter of outlet pipe port.
Because this has a flexible gasket between outlet pipe that closely packed is put and enclosing cover, sealing gasket is under the effect of hydraulic pressure, can become arcuation by nature, and can cover seam between outlet pipe and the enclosing cover, so outside percolating water not, good sealing effect, moreover the extruding of sealing gasket not managed and lid in water pipe are therefore durable in use.
Be described further below in conjunction with accompanying drawing and embodiment:
Fig. 1 is the structure chart of embodiment 1 when no hydraulic pressure;
Fig. 2 is an outlet pipe structure chart among the embodiment 2;
Fig. 3 is the half sectional view of embodiment 3 when hydraulic pressure is arranged.
Embodiment 1: on outlet pipe 3 outer walls that communicate with the ground pipe laying external screw thread is arranged, spin together with the internal thread of enclosing cover 1, outlet pipe 3 has a closing in enclosing cover 1 near port 4 places that locate, this place's inner diameter d is less than other inside diameter D everywhere of outlet pipe 3, the 4 outerplanar M of place are vertical with the tube wall N of outlet pipe 3 for port, the inwall of port 4 has one section arcuation, enclosing cover 1 and port 4 corresponding positions fluted 9, the inwall 1 ' of enclosing cover 1 is an arcuation, after enclosing cover 1 and outlet pipe 3 screw tightly, the port 4 of outlet pipe 3 places in the groove 9 just, between outlet pipe 3 and the enclosing cover 1 flexible pad 2 is arranged, in the middle of this pad hole, cave 7 is arranged, fix a threaded bar 5 in the hole, cave 7, screw rod 5 passes the hole 8 in the middle of enclosing cover 1, and screw rod 5 places nut 6 partly is housed outside the enclosing cover 1.
During use, flexible pad 2 is smash in the outlet pipe 3, enclosing cover 1 is tightened on (as shown in Figure 1) on the outlet pipe 3 by screw rod 5.Pressure with current, flexible pad 2 can become arcuation (arc is to opposite with Fig. 1), and the chord length H between this moment arc two-end-point is greater than the inner diameter d at outlet pipe port 4 places, so flexible pad 2 covers in the cross-stitch between enclosing cover 1 and the outlet pipe 3, fastening nut makes screw rod 5 fixing.
Embodiment 2: in this real embodiment, the rear portion of outlet pipe 3 is less than anterior external diameter, it can insert closely with existing and irrigate with in the outlet pipe internal diameter, on the anterior external diameter of outlet pipe discontinuous groove 10 is arranged, the enclosing cover internal diameter has the tongue that matches with the outlet pipe groove, its enclosing cover and outlet pipe are spun together, and other structures are identical with embodiment 2.
Embodiment 3: present embodiment belongs to the situation that current are arranged in the outlet pipe, and the inwall of outlet pipe port 4 has one section inclined-plane Q, near inclined-plane Q one groove W is arranged, and (as shown in Figure 3), the inwall of enclosing cover 1 is the inclined-plane, and its gradient and inclined-plane Q coincide.Flexible pad 2 diameters are bigger in the present embodiment, and its outer rim reaches groove W place, fixing a positioning rod 5 in the hole, cave 7 in the middle of the flexible pad 2, backstay 5 part outside enclosing cover 1 has pin-and-hole 7 ', is inserted with pin 7 in the pin-and-hole 7 ' ", other structures are identical with embodiment 1.
It is big that outlet pipe in embodiment 1 and embodiment 2 all can be made anterior diameter, and the big structure of the little or anterior diameter of rear portion diameter little rear portion diameter is inserted this equipment or be enclosed within the internal diameter of old irrigation and drainage water-supply-pipe or on the external diameter, to adapt to the use of old equipment.
Claims (5)
- One kind be used for the irrigation and drainage water-supply-pipe from obturator: comprise outlet pipe, screw the enclosing cover on outlet pipe, it is characterized in that: the approaching port internal diameter of outlet pipe and enclosing cover is less than other internal diameters everywhere of outlet pipe, in outlet pipe and the enclosing cover flexible gasket is arranged, the string between the sealing gasket two-end-point is greater than the internal diameter of outlet pipe port.
- 2. according to claim 1ly put from closely packed, it is characterized in that: the outerplanar of port and the tube wall of outlet pipe are perpendicular, and this place's inwall has one section arcuation, and enclosing cover and port position corresponding position are fluted, and the port of outlet pipe places in this groove.
- 3. according to claim 1 from obturator, it is characterized in that: the inwall of port has one section inclined-plane, and the gradient of its gradient and enclosing cover inwall matches.
- 4. according to claim 1 and 2 from obturator, it is characterized in that: in the middle of the flexible gasket hole, cave is arranged, the hole, cave is built-in with positioning screw, and screw rod passes from the centre bore of enclosing cover, is equipped with on the screw rod outside the enclosing cover and screws nut.
- 5. according to claim 2 or 3 described from obturator, it is characterized in that: in the middle of the flexible gasket hole, cave is arranged, the hole, cave is built-in with backstay, and backstay passes from the centre bore of enclosing cover, and locating hole and alignment pin are arranged on the backstay outside the enclosing cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00229113 CN2403507Y (en) | 2000-01-18 | 2000-01-18 | Self-closing device for drainage and irrigation water delivery pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00229113 CN2403507Y (en) | 2000-01-18 | 2000-01-18 | Self-closing device for drainage and irrigation water delivery pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2403507Y true CN2403507Y (en) | 2000-11-01 |
Family
ID=33592472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00229113 Expired - Fee Related CN2403507Y (en) | 2000-01-18 | 2000-01-18 | Self-closing device for drainage and irrigation water delivery pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2403507Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111519958A (en) * | 2020-05-08 | 2020-08-11 | 李孝斌 | Explosion-proof workshop for firework and firecracker production |
-
2000
- 2000-01-18 CN CN 00229113 patent/CN2403507Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111519958A (en) * | 2020-05-08 | 2020-08-11 | 李孝斌 | Explosion-proof workshop for firework and firecracker production |
| CN111519958B (en) * | 2020-05-08 | 2022-07-22 | 浏阳市达浒花炮艺术焰火燃放集团有限公司 | Explosion-proof workshop for producing fireworks and crackers |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |