Combustion gas is with going out silk crossover sub within the walls by buried corrugated stainless steel tubing
Technical field
The present invention relates to a kind of pipe joint, particularly relate to a kind of combustion gas with going out silk crossover sub within the walls by buried corrugated stainless steel tubing.
Background technique
Rock gas is the required clear energy sourcess of a kind of family expenses, and it is easy to use, the vast cities and towns of China widely use pipe natural gas, as civilian and industrial raw material, in recent years, in gas pipeline engineering, China has started to apply corrugated stainless steel tubing, has obtained the popularization of larger area in many big and medium-sized cities.In engineering design and in-site installation construction, generally adopt surface mode at present, directly bury wall few, and in dark buriing work, bellows go out wall auxiliary products imperfection, generally directly go out wall after being bent by bellows, bellows to go out wall partial intensities low, resistance to torsion is poor, be easy to by collision deformation, even fracture damage, causes gas leakage, poor stability, and exposed bellows is very easily corroded, corrosion, affect house finishing effect.
Summary of the invention
For above-mentioned prior art Problems existing, the invention provides a kind of combustion gas with silk crossover sub within the walls can be gone out by buried corrugated stainless steel tubing, easy for installation, can dismounting be repeated, easy access, larger installation torsion can be born, possess very high safety and reliability, very practical.
Technological scheme of the present invention is: a kind of combustion gas is with going out silk crossover sub within the walls by buried corrugated stainless steel tubing, comprise the crossover sub body of L shape, described crossover sub body comprises connecting tube and bending tube connected vertically with connecting tube, connecting tube communicates with bending tube, described bending tube by cross section be semi-circular shape supporting part and cross section be that the covering part of semi-circular shape combines; Supporting part wherein one end is fixedly connected with wherein one end of connecting tube, and covering part and supporting part removably connect; The free end sidewall of connecting tube is provided with positioning boss, and the free end inwall opening of connecting tube is provided with nested, and nested inwall is provided with screw thread.
As preferably, described supporting part is provided with buckle, covering part is provided with and the snap ring be clasped, supporting part and covering part are removably connected by buckle and snap ring.
As preferably, described positioning boss is anistree or 12 jiaos of nut shapes away from one end of supporting part.
As preferably, bending tube is provided with annular boss away from one end inwall parallel interval of connecting tube.
As preferably, connecting tube, positioning boss, supporting part and buckle are one-body molded, covering part and snap ring one-body molded.
As preferably, connecting tube, positioning boss, supporting part, buckle, covering part and snap ring all adopt pe100 material to make.
The invention has the beneficial effects as follows: site operation of the present invention is installed simple, only needs covering part to pull down, bellows is loaded, bending, then covering part is loaded onto, easy for installation, and covering part can repeat dismounting, and easy access, installation cost is low.The present invention adopts that pe100 material is one-body molded to be made, strength and stiffness are high, larger installation torsion can be born, gas leakage can not be caused because of fracture damage, possess very high safety and reliability, bellows can be prevented in addition to be corroded and corrosion, and it is elegant in appearance, merge mutually with interior decoration, do not destroy interior decoration, very practical.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the structural representation of another angle of the present invention;
Fig. 3 is structural representation of the present invention after covering part of dismantling;
Fig. 4 is the structural representation of another angle of the present invention after covering part of dismantling;
Fig. 5 is plan view of the present invention after covering part of dismantling;
Fig. 6 is left view of the present invention after covering part of dismantling shown in Fig. 5;
Fig. 7 is right elevation of the present invention after covering part of dismantling shown in Fig. 5;
Fig. 8 is sectional view of the present invention after covering part of dismantling;
Fig. 9 is the structural representation of covering part of the present invention;
Figure 10 is the plan view of covering part of the present invention;
Figure 11 is the rear view of covering part of the present invention shown in Figure 10;
Figure 12 is covering part scheme of installation of the present invention;
Figure 13 is structural representation of the present invention after installation bellows.
Embodiment
As one embodiment of the present invention, as shown in figure 1 to figure 13, a kind of combustion gas is with going out silk crossover sub within the walls by buried corrugated stainless steel tubing, comprise the crossover sub body of L shape, described crossover sub body comprises connecting tube 1 and bending tube 2 connected vertically with connecting tube 1, connecting tube 1 communicates with bending tube 2, and connecting tube 1 mates with the external diameter of bellows 8 with the internal diameter of bending tube 2.Described bending tube 2 by cross section be semi-circular shape supporting part 21 and cross section be that the covering part 22 of semi-circular shape combines; Supporting part 21 wherein one end is fixedly connected with wherein one end of connecting tube 1, and covering part 22 and supporting part 21 removably connect; As preferably, described supporting part 21 is provided with buckle 3, covering part 22 is provided with the snap ring 7 coordinated with buckle 3, supporting part 21 and covering part 22 are removably connected by buckle 3 and snap ring 7.In the present embodiment, supporting part 21 sidewall is symmetrically set with four buckles 3 close to the part of opening end, and position corresponding in covering part 22 is provided with four snap rings 7 mated with buckle 3.Buckle 3 and the snap ring 7 of other quantity can certainly be adopted, or the mode adopting other to removably connect, as long as the connection of supporting part 21 and covering part 22 can be facilitated and dismantle.
The free end sidewall of connecting tube 1 is provided with positioning boss 4, facilitates installation of the present invention to locate, and in the present embodiment, as preferably, described positioning boss 4 is anistree or 12 jiaos of nut shapes away from one end of supporting part 21.Elegant in appearance and facilitate installation of the present invention.The free end inwall opening of connecting tube 1 is provided with nested 5, and nested 5 inwalls are provided with screw thread, and in the present embodiment, as preferably, nested 5 adopt copper forgings to form, plating nickel on surface process.Connecting tube 1 is threaded with band seat globe valve by nested 5.
As preferably, bending tube 2 is provided with annular boss 6 away from one end inwall parallel interval of connecting tube 1.In the present embodiment, supporting part 21 is provided with boss away from one end of connecting tube 1 along inner wall surface parallel interval, the position parallel interval of covering part 22 correspondence is provided with the boss of same shape and size, after supporting part 21 is connected with covering part 22, looping boss 6 combined by corresponding boss, spaced annular boss 6 can play the effect of fixing bellows 8, avoids bellows 8 to move in the present invention.
As preferably, connecting tube 1, positioning boss 4, supporting part 21 and buckle 3 are one-body molded, covering part 22 and snap ring 7 one-body molded, add strength and stiffness of the present invention.Connecting tube 1, positioning boss 4, supporting part 21, buckle 3, covering part 22 and snap ring 7 all adopt pe100 material to make, and further increase intensity of the present invention, rigidity and anti-corrosive properties.
When installing of the present invention, only need first bury bellows 8, covering part 22 of the present invention has been pulled down, the wall end that goes out of bellows 8 is passed the present invention, by bellows 8 along the present invention's bending, is loaded on covering part 22, connecting tube 1 is connected with band seat globe valve, fast very convenient.
The foregoing is only a kind of embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and obvious mode of texturing etc., all should be included within protection scope of the present invention.