CN202674695U - PE (polyethylene) pipe end air blocking device - Google Patents
PE (polyethylene) pipe end air blocking device Download PDFInfo
- Publication number
- CN202674695U CN202674695U CN 201220243044 CN201220243044U CN202674695U CN 202674695 U CN202674695 U CN 202674695U CN 201220243044 CN201220243044 CN 201220243044 CN 201220243044 U CN201220243044 U CN 201220243044U CN 202674695 U CN202674695 U CN 202674695U
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- pipe
- hole
- screw
- gas shutoff
- shutoff device
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Abstract
The utility model belongs to the technical field of PE (polyethylene) pipe pressure testing technologies, and discloses a PE pipe end air blocking device which comprises a pipe clamping block (1), a clamping device and an air blocking device. A through hole (11) in clearance fit with a PE pipe is arranged in the pipe clamping block (1), the direction of application of clamping force of the clamping device is identical with the radial direction of the through hole (11), the air blocking device is connected with the pipe clamping block (1) at an end of the through hole (11), and a sealing ring (6) is arranged between the PE pipe and the air blocking device. The PE pipe end air blocking device is free of welding of PE pipes, and an end of the PE pipe can be sealed only by adopting a mechanical structure, so that a large amount of manpower, time and materials is saved, and working efficiency is improved.
Description
Technical field
The utility model belongs to PE pipe pressure test technology field, especially relates to a kind of gas shutoff device for temporary sealing PE tube end.
Background technique
Polyethylene, English referred to as PE, have good corrosion resistance, electrical insulation capability.The fusing point of low pressure polyethylene, rigidity, hardness and intensity are higher, and moisture absorption is little, and good electrical property and radiation resistance are arranged, and are suitable for making corrosion-resistant part and insulating part, are particularly suitable for making pipe part.Said PE pipe is exactly that this kind material is made in our daily life.After the PE pipe is made, to leak gas or pressure test, whether leak gas the pressure that perhaps tube wall can bear behind filled gas or the liquid in the detecting tube to detect the PE pipe.
PE pipe pressure testing machine is a kind of equipment that carries out this class testing.It utilizes the principle of gas expansion for doing work, and the gas that will have certain pressure is filled with to be produced in the good PE pipe, keeps this pressure a period of time to detect withstand voltage situation and the tightness of tubing.
When the PE pipe carries out pressure testing, in the chuck on the end insertion pressure testing machine of PE pipe, the locking chuck, then the other end with the PE pipe seals.When pressure testing machine started, pressurized gas flowed in the PE pipe through the chuck on the pressure testing machine is inner, because the other end of PE pipe blocked, so pressurized gas very large pressure of formation in the PE pipe.If keeping the tubing internal pressure after a period of time, tubing does not leak air or the problem such as expand just illustrates that pipe workpiece quality is qualified.
Wherein the end part seal with the PE pipe is relatively more crucial step, and traditional sealing means is the physical property of utilizing this type of PE, adopts manual welding PE pipe plug to reach the purpose of gas shutoff sealing.But this kind mode takes time and effort, and wastes again material, also weld will be cut off after test is finished.
The model utility content
In order to solve above-mentioned problems of the prior art, the utility model has designed a kind of gas shutoff device of easy to operate PE tube end.
Concrete scheme of the present utility model is: a kind of PE tube end gas shutoff device comprises tubing fixture block (1), clamp device, gas shutoff device; Wherein be provided with the through hole (11) that cooperates with the PE ligament in the tubing fixture block (1), clamp device connects or is socketed on the tubing fixture block (1), the clamping application of force direction of clamp device be through hole (11) radially, the gas shutoff device is connected with tubing fixture block (1) in the end of through hole (11), is provided with seal ring (6) between PE pipe and the gas shutoff device.When the gas shutoff device of this programme uses the PE pipe is inserted in the through hole (11), compress tubing fixture block (1) with clamp device, namely clamp the PE pipe, block with seal ring (6) and the gas shutoff device end with the PE pipe, reach the effect of sealing.Operation is simple and reliable for this programme, and practicability is good, and high working efficiency is avoided waste of material, saves cost.
Above-mentioned clamp device comprises nut plate (2) and screw (4), wherein nut plate (2) is connected on the tubing fixture block (1), screw (4) pass nut plate (2) and with its screw-thread fit, screw (4) axially be described through hole (11) radially.This structure utilizes screw-thread fit to make screw (4) hold out against tubing fixture block (1), thereby clamps the PE pipe, clamps firmly.
Above-mentioned gas shutoff device is screw rod (5), and above-mentioned through hole (11) one ends are provided with internal thread, screw rod (5) and through hole (11) screw-thread fit; Above-mentioned seal ring (6) is located between PE pipe and the screw rod (5), by screw rod (5) seal ring (6) is pressed in the end of PE pipe, thereby the PE tube end is blocked.This structural stability is firm, good airproof performance.
The end of above-mentioned screw rod (5) is provided with boss (51), and boss (51) is provided with circular groove (52), and described seal ring (6) is located in the circular groove (52); The external diameter of boss (51) is less than the internal diameter of PE pipe, and the external diameter of seal ring (6) is greater than the internal diameter of PE pipe.Boss (51) plays the effect of guiding and location to the PE pipe, makes it be difficult for occuring deformation, improves sealing.
The internal surface of above-mentioned through hole (11) is provided with rubbing surface, and the frictional force when clamping to improve makes the PE pipe be difficult for deviating from from through hole (11).
Above-mentioned rubbing surface is annular knurl or internal screw thread, is convenient to processing, destroys less to the PE tube outer surface.
Be fixed with handwheel (3) on the above-mentioned screw (4), be fixed with handwheel (3) on the screw rod (5), to make things convenient for user's rotating operation, increase work efficiency.
The end of above-mentioned through hole (11) is provided with chamfering, plays leading role, is convenient to the PE pipe and inserts.
The utility model compared with prior art has following beneficial effect: need not welding PE tubing, only adopt mechanical structure just the end part seal of PE pipe can have been saved a large amount of manpowers, time, material, improved working efficiency; The device screw-threaded couplings that adopt itself more, the locking firm stable, reasonable in design, processing and fabricating is simple, and is with low cost.
Description of drawings
Fig. 1 is the utility model embodiment's cross-sectional view;
Fig. 2 is the cross-sectional view of screw rod among the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
As shown in Figure 1, a kind of PE tube end gas shutoff device comprises tubing fixture block 1, nut plate 2, handwheel 3, screw 4, screw rod 5, seal ring 6.
Wherein be provided with through hole 11 in the tubing fixture block 1, through hole 11 1 ends are provided with internal thread, screw rod 5 and through hole 11 screw-thread fit.Nut plate 2 is connected on the tubing fixture block 1, screw 4 pass nut plate 2 and with nut plate 2 screw-thread fit.The end of screw 4 and screw rod 5 all is fixed with handwheel 3.
As shown in Figure 2, the end of screw rod 5 is provided with boss 51, and boss 51 is provided with circular groove 52, and seal ring 6 is located in the circular groove 52.Again as shown in Figure 1, boss 51 stretches in the PE pipe 7, and seal ring 6 is stuck in the end of PE pipe 7.Position over against screw 4 in the through hole 11 also is provided with the internal screw thread rubbing surface.
Present embodiment inserts PE pipe 7 in the through holes 11 first in use, and the handwheel 3 that then rotates on the screw 4 clamps PE pipe 7, and the handwheel 3 on the rotating screw bolt 5 is again managed 7 end with the end of seal ring 6 and screw rod 5 with PE and blocked.Unclamp first the gas in screw rod 5 discharge tubes after test is finished, and then unclamp screw 4 and take out PE pipe 7.
Claims (8)
1. a PE tube end gas shutoff device is characterized in that: comprise tubing fixture block (1), clamp device, gas shutoff device; Wherein be provided with through hole (11) in the tubing fixture block (1), the clamping application of force direction of clamp device be through hole (11) radially, the gas shutoff device is connected with tubing fixture block (1) in the end of through hole (11), is provided with seal ring (6) between PE pipe and the gas shutoff device.
2. PE tube end gas shutoff device according to claim 1, it is characterized in that: described clamp device comprises nut plate (2) and screw (4), wherein nut plate (2) is connected on the tubing fixture block (1), screw (4) pass nut plate (2) and with its screw-thread fit, screw (4) axially be described through hole (11) radially.
3. PE tube end gas shutoff device according to claim 1 and 2, it is characterized in that: described gas shutoff device is screw rod (5), described through hole (11) one ends are provided with internal thread, screw rod (5) and through hole (11) screw-thread fit; Described seal ring (6) is located between PE pipe and the screw rod (5).
4. PE tube end gas shutoff device according to claim 3, it is characterized in that: the end of described screw rod (5) is provided with boss (51), and boss (51) is provided with circular groove (52), and described seal ring (6) is located in the circular groove (52); The external diameter of boss (51) is less than the internal diameter of PE pipe, and the external diameter of seal ring (6) is greater than the internal diameter of PE pipe.
5. PE tube end gas shutoff device according to claim 4, it is characterized in that: described through hole (11) internal surface is provided with rubbing surface.
6. PE tube end gas shutoff device according to claim 5, it is characterized in that: described rubbing surface is annular knurl or internal screw thread.
7. PE tube end gas shutoff device according to claim 6 is characterized in that: be fixed with handwheel (3) on the described screw (4), be fixed with handwheel (3) on the screw rod (5).
8. PE tube end gas shutoff device according to claim 7, it is characterized in that: the end of described through hole (11) is provided with chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220243044 CN202674695U (en) | 2012-05-28 | 2012-05-28 | PE (polyethylene) pipe end air blocking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220243044 CN202674695U (en) | 2012-05-28 | 2012-05-28 | PE (polyethylene) pipe end air blocking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202674695U true CN202674695U (en) | 2013-01-16 |
Family
ID=47495601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220243044 Expired - Lifetime CN202674695U (en) | 2012-05-28 | 2012-05-28 | PE (polyethylene) pipe end air blocking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202674695U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322370A (en) * | 2013-06-18 | 2013-09-25 | 苏州市吴中区欣鑫开关配件厂 | Plugging device |
| CN103712862A (en) * | 2013-12-30 | 2014-04-09 | 重庆市科学技术研究院 | Device for testing expansion performance of magnesium alloy tubular product |
| CN108106793A (en) * | 2017-12-07 | 2018-06-01 | 嵊州领航信息科技有限公司 | A kind of pressure-detecting device of pipe end |
-
2012
- 2012-05-28 CN CN 201220243044 patent/CN202674695U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103322370A (en) * | 2013-06-18 | 2013-09-25 | 苏州市吴中区欣鑫开关配件厂 | Plugging device |
| CN103712862A (en) * | 2013-12-30 | 2014-04-09 | 重庆市科学技术研究院 | Device for testing expansion performance of magnesium alloy tubular product |
| CN108106793A (en) * | 2017-12-07 | 2018-06-01 | 嵊州领航信息科技有限公司 | A kind of pressure-detecting device of pipe end |
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130116 |