CN201140322Y - Throttling back nitrogen feed protecting apparatus - Google Patents
Throttling back nitrogen feed protecting apparatus Download PDFInfo
- Publication number
- CN201140322Y CN201140322Y CNU2008200974494U CN200820097449U CN201140322Y CN 201140322 Y CN201140322 Y CN 201140322Y CN U2008200974494 U CNU2008200974494 U CN U2008200974494U CN 200820097449 U CN200820097449 U CN 200820097449U CN 201140322 Y CN201140322 Y CN 201140322Y
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- CN
- China
- Prior art keywords
- upper flange
- groove
- throttling
- anger
- air
- 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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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
The utility model relates to a throttle impact nitrogen protector, comprising a frame, which is characterized by further comprising a lower frame fixed on the frame, wherein the center of the lower frame is provided with a chamber of step type with a large upper and a small lower, the plane of the chamber is provided with an air intake groove whose arc length is corresponding to an angle of 180 to 270 degrees, the lower frame is provided with a hole communicated with the air intake groove and outer space, an upper flange is provided in the chamber and can rotate relative to the lower flange, which is provided with at least two air inlets at the position relative to the intake groove, a throttle distributor is connected fixedly with the upper flange and is provided with at least two air outlet grooves at the plane relative to the upper flange and communicated with the air inlets respectively, each air outlet groove is provided with at least two air outlets, a work bench is connected fixedly with the throttle distributor and is provided with at least four bench air outlets communicated with the air outlets. After the welding, the utility model stops impacting the copper pipe via nitrogen gas, to save nitrogen gas effectively, thereby reducing the production cost.
Description
Technical field
The utility model relates to a kind of energy-conservation towards the nitrogen protective device.
Background technology
For the copper pipe pipeline fitting is welded to each other, need to copper pipe inside nitrogen towards certain pressure, copper pipe inner surface oxidation when avoiding welding makes the product after the welding obtain the excellent protection effect.Existing most of manufacturers adopt omnidistance towards nitrogen protection welding method, and its nitrogen consumption is big, has wasted great amount of cost.
The utility model content
The utility model be overcome the deficiencies in the prior art and when a kind of welding or pre-welding are provided in the copper pipe towards nitrogen; Welding finishes, not to inflated with nitrogen in the copper pipe, can reduce greatly that nitrogen consumes a kind of throttling towards the nitrogen protective device.
In order to achieve the above object, the utility model is to realize like this, a kind of throttling is towards the nitrogen protective device, comprise frame, it is characterized in that: also comprise the lower flange that is fixed on the frame, have the up big and down small inner chamber that is stairstepping at the center of lower flange, on the plane of inner chamber, be provided with the air inlet groove, the pairing angle of the arc length of groove is provided with on lower flange and air inlet groove and the extraneous hole that communicates between 180 °-270 °; Also comprise be positioned at inner chamber and the relative upper flange that rotates of lower flange, on upper flange, be provided with plural air admission hole, the position of this air admission hole is corresponding with the position of air inlet groove, so that the formation venting channels; Also comprise the throttling distributor of fixedlying connected with upper flange, be provided with the groove of giving vent to anger more than two with the corresponding surface of upper flange on the throttling distributor, this groove of giving vent to anger communicates with air admission hole respectively, so that the formation venting channels, be provided with plural venthole being positioned on the throttling distributor on every the groove of giving vent to anger; Also comprise the work top of fixedlying connected with throttling distributor, at the table top venthole that is provided with on the work top more than four, this table top venthole communicates with venthole.
Be provided with a rotating shaft on described upper flange, be arranged with a bearing in rotating shaft, this bearing fixing is in the inner chamber of lower flange.
Between the contact-making surface of described upper flange wall and lower flange wall, be provided with sealing ring.
Symmetry is provided with four air admission holes on described upper flange, symmetry is provided with and four four identical grooves of giving vent to anger of length that the air admission hole position is corresponding on throttling distributor, article four, the groove of giving vent to anger communicates with four air admission holes respectively, on four grooves of giving vent to anger, be provided with four ventholes uniformly, on work top, be provided with 16 table top ventholes that communicate with venthole.
The utility model advantage compared with prior art is because after welding finishes, not in the copper pipe again towards nitrogen, saved a large amount of nitrogen, thereby reduced production cost.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the explosive view of Fig. 1;
Fig. 3 is the structural representation of lower flange;
Fig. 4 is the vertical view of Fig. 3;
Fig. 5 is the structural representation of upper flange;
Fig. 6 is the vertical view of Fig. 5;
Fig. 7 is the vertical view of throttling distributor;
Fig. 8 is the A-A profile of Fig. 7;
Fig. 9 is the upward view of Fig. 7.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described:
As shown in Figure 1, 2, its be a kind of throttling towards the nitrogen protective device, comprise frame 7; Also comprise the lower flange 5 that is fixed on the frame, have the up big and down small inner chamber 53 that is stairstepping at the center of lower flange, on the plane of inner chamber, be provided with air inlet groove 52, the pairing angle of the arc of groove is provided with on lower flange and air inlet groove and the extraneous nitrogen hand-hole 51 that communicates between 180 °-270 °; Also comprise be positioned at inner chamber and the relative upper flange 4 that rotates of lower flange, on upper flange, be provided with plural air admission hole 41, the position of this air admission hole is corresponding with the position of air inlet groove, so that the formation venting channels; Also comprise the throttling distributor 2 of fixedlying connected with upper flange, be provided with the groove 23 of giving vent to anger more than two with the corresponding surface of upper flange on the throttling distributor, this groove of giving vent to anger communicates with air admission hole respectively, so that the formation venting channels, be provided with plural venthole 22 on every the groove of giving vent to anger being positioned on the throttling distributor; Also comprise the work top 1 of fixedlying connected with throttling distributor, at the table top venthole 11 that is provided with on the work top more than four, this table top venthole communicates with venthole.
Shown in Fig. 1 to 9, on upper flange 4, be provided with a rotating shaft 43, in rotating shaft, be arranged with a bearing 6, this bearing fixing is in the inner chamber 53 of lower flange, so that the upper flange rotation is smooth and easy.Be provided with sealing ring 3 between the contact-making surface of upper flange 4 walls and lower flange 5 walls, be provided with an annular groove 44 on the upper flange wall, a sealing ring part is located in the groove.On upper flange 4 symmetry be provided with four air admission holes 41, the pairing angle of the arc length of air inlet groove is 270 °, the position of these four air admission holes is corresponding with the air inlet groove; Four grooves 23 of giving vent to anger that symmetrical being provided with communicates with four air admission holes respectively and length is identical on throttling distributor 2, the give vent to anger position of groove is corresponding with the position of air admission hole, on four grooves of giving vent to anger, be provided with four ventholes 22 uniformly, on work top, be provided with 16 table top ventholes 11 that communicate with venthole; Also be respectively equipped with screw 42 and 21 on upper flange and throttling distributor, they connect by bolt.
The adjusted during work nitrogen of pressure; nitrogen imports from the nitrogen hand-hole of lower flange 5; nitrogen can be full of in 270 ° of scopes in the air inlet groove 52 of lower flange 6; when the air admission hole 41 of upper flange 4 communicates with the air inlet groove; nitrogen flows in the groove 23 of giving vent to anger corresponding with it on the throttling distributor 2; flow out by venthole 22 and table top venthole 11 again and enter in the copper pipe; realization is towards nitrogen work; being rotated further upper flange 4 and throttling distributor 2 workpiece protects towards nitrogen in 180 ° of-270 ° of scopes; nitrogen quits work when the position of workpiece turns over outside 270 ° then, thereby has realized the nitrogen throttling.
Claims (4)
1, a kind of throttling is towards the nitrogen protective device, comprise frame, it is characterized in that: also comprise the lower flange (5) that is fixed on the frame (7), have the up big and down small inner chamber (53) that is stairstepping at the center of lower flange, on the plane of inner chamber, be provided with air inlet groove (52), the pairing angle of the arc length of groove is provided with on lower flange and air inlet groove and the extraneous hole (51) that communicates between 180 °-270 °; Also comprise be positioned at inner chamber and the relative upper flange (4) that rotates of lower flange, on upper flange, be provided with plural air admission hole (41), the position of this air admission hole is corresponding with the position of air inlet groove, so that the formation venting channels; Also comprise the throttling distributor (2) of fixedlying connected with upper flange, be provided with the groove of giving vent to anger (23) more than two with the corresponding surface of upper flange on the throttling distributor, this groove of giving vent to anger communicates with air admission hole respectively, so that the formation venting channels, be provided with plural venthole (22) on every the groove of giving vent to anger being positioned on the throttling distributor; Also comprise the work top (1) of fixedlying connected with throttling distributor, at the table top venthole (11) that is provided with on the work top more than four, this table top venthole communicates with venthole.
2, a kind of throttling according to claim 1 is characterized in that towards the nitrogen protective device: be provided with a rotating shaft (43) on described upper flange (4), be arranged with a bearing (6) in rotating shaft, this bearing fixing is in the inner chamber (53) of lower flange.
3, a kind of throttling according to claim 1 is characterized in that towards the nitrogen protective device: be provided with sealing ring (3) between the contact-making surface of described upper flange (4) wall and lower flange (5) wall.
4, a kind of throttling according to claim 1 is towards the nitrogen protective device; it is characterized in that: be provided with four air admission holes (41) what described upper flange (4) was gone up symmetry; go up being provided with and four identical four grooves of giving vent to anger (23) of length that the air admission hole position is corresponding of symmetry at throttling distributor (2); article four, the groove of giving vent to anger communicates with four air admission holes respectively; on four grooves of giving vent to anger, be provided with four ventholes (22) uniformly, on work top, be provided with 16 table top ventholes (11) that communicate with venthole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200974494U CN201140322Y (en) | 2008-01-05 | 2008-01-05 | Throttling back nitrogen feed protecting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200974494U CN201140322Y (en) | 2008-01-05 | 2008-01-05 | Throttling back nitrogen feed protecting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201140322Y true CN201140322Y (en) | 2008-10-29 |
Family
ID=40068038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200974494U Expired - Fee Related CN201140322Y (en) | 2008-01-05 | 2008-01-05 | Throttling back nitrogen feed protecting apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201140322Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102837100A (en) * | 2012-09-06 | 2012-12-26 | 珠海格力电器股份有限公司 | Flame brazing welding machine and pipe joint protection tool thereof |
| CN107309530A (en) * | 2017-08-29 | 2017-11-03 | 贵州永红航空机械有限责任公司 | Austenitic stainless steel thin plate TIG welding line back-protective frocks |
-
2008
- 2008-01-05 CN CNU2008200974494U patent/CN201140322Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102837100A (en) * | 2012-09-06 | 2012-12-26 | 珠海格力电器股份有限公司 | Flame brazing welding machine and pipe joint protection tool thereof |
| CN102837100B (en) * | 2012-09-06 | 2014-10-01 | 珠海格力电器股份有限公司 | Flame brazing welding machine and pipe joint protection tool thereof |
| CN107309530A (en) * | 2017-08-29 | 2017-11-03 | 贵州永红航空机械有限责任公司 | Austenitic stainless steel thin plate TIG welding line back-protective frocks |
| CN107309530B (en) * | 2017-08-29 | 2020-01-31 | 贵州永红航空机械有限责任公司 | Austenitic stainless steel sheet TIG welds welding seam back protection frock |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081029 Termination date: 20150105 |
|
| EXPY | Termination of patent right or utility model |