CN1948813A

CN1948813A - Polyhedral thermowelding composite pipe joint and its special fusion device

Info

Publication number: CN1948813A
Application number: CN 200610097141
Authority: CN
Inventors: 周兆卿
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-10-26
Filing date: 2006-10-26
Publication date: 2007-04-18
Anticipated expiration: 2026-10-26
Also published as: CN100424400C

Abstract

The outer layer of the inventive multiple-unit tube joint main body is plastic tubes and the inner layer is metal tubes through the main body cavity. Two ends of the main body is sleeved a sleeve each and in the tube sleeve are disposed a welding slot and a welding table. Between the outer layer of the main body and the tube sleeve is disposed a conical ring surface. The inventive special welding set has inner and outer welding sets and on one side of their fixed plate is disposed a ring sleeve. In the connection position of the outside of the inner welding set ring sleeve with the fixed plate is set a conical ring surface and at the end of the outer welding set ring sleeve is set a conical ring surface.

Description

Multiaspect welding multiunit tube joint and special-purpose molten tool thereof

Technical field

The present invention relates to a kind of metal of pipelines uses such as plumbing, air feed, chemical industry, heating power and multiunit tube joint of plastic composite pipe of being used for.

Background technique

The Chinese patent notification number is that CN2781365Y discloses a kind of multiunit tube joint, and the defective that this multiunit tube joint exists is: 1. complex structure, and manufacturing process is cumbersome; 2. particularly make the top layer ring with stainless steel, because of the welding process requirement height of its material, being difficult to guarantee accomplish in batch process not to have trachoma or weld seam in the welding part, guarantees that again face of weld is attractive in appearance; Plastic body in joint top layer metal ring inwall injection molding joint is irrational.During injection moulding, the injection moulding quality of top layer ring spigot can not visual control, and inferior product is many, and cost is big, and the price height is difficultly produced in enormous quantities and applied; 3. welding Security deficiency, joint socket joint hot melt mouth only is the single face welding, misoperation a little when installing can welding seepage sternly not occur, and can't remedy, and joint is scrapped and is caused waste even results in greater loss because of seepage.

The Chinese patent notification number is that CN2797837Y discloses another kind of multiunit tube joint, the defective that this multiunit tube joint exists is: 1. structural design is unreasonable, when pipe joint and composite pipe welding, the joint joint socket closes the chamber because of the easy formation of the insertion of composite pipe and produces airtight vapour lock, composite pipe inserts dark more, the back-pressure resistance is big more, facts have proved to melt to be inserted into design attitude, influences the welding quality; Especially when 32 millimeters of weldings and above heavy caliber composite pipe thereof, the back-pressure resistance more so is difficult to construction and installation, can't guarantee construction quality at all; 2. the functional limitation of structure limitation and plastics, because of the agent structure and the plastic material of joint can't intercept the material penetration joints main body plastics such as oxygen that exist in available light and the external environment condition, because of oozing the hardware in the inevitable corrosion pipeline of the oxygen system, shortened the working life of equipment greatly.More fearful is because of printing opacity and oozes oxygen, can nourish harmful microorganism in the drinkable water pipeline, must pollute the water quality in the pipe, and the water cleanliness in the direct drinking pipe that lay particularly high-grade residential quarter can not get ensureing.Steep in the sewage that waste pipe leaks as the equipment in the water meter well of common residential belt.

The undergauge problem that above-mentioned two kinds of multiunit tube joints also all exist the effective internal diameter of the unreasonable joint that produces of structural design to diminish, promptly the internal diameter of composite pipe and joint internal diameter are inconsistent, must be the unit inflow-rate of water turbine of the unit inflow-rate of water turbine of joint less than the same specification composite pipe.Can not satisfy designing requirement with the composite pipe flow matches.In addition,, can't remove the dirt that accumulates in the pipeline,, cause the whole pipe equipment scrapping and influence and produce and life finally because of the too many blocking pipe of contamination with professional pipeline cleaning instrument because of the undergauge of joint.As periodic cleaning to the floor panel heating pipeline laid.

Summary of the invention

The objective of the invention is to provide a kind of multiaspect welding multiunit tube joint to solve foregoing problems.This multiunit tube joint is simple and reasonable, and the welding quality is good, can block the infiltration of harmful matter in the transmission of available light and the external environment condition fully, prevents the pollution to water in managing etc.For realizing described purpose, the molten tool of special use that the present invention also will provide the welding that is complementary with it to use.

Technological scheme of the present invention is achieved in that this multiunit tube joint comprises main body, the skin of main body is a plastic tube, and the internal layer of main body is for connecting the metal tube of main body inner chamber, and the main body two ends all are with pipe box, be provided with welding groove and welding platform in the pipe box, be provided with the conical ring face between main body skin and the pipe box.

Described metal tube end is provided with flange.

The described conical ring face outside is provided with the ring step.

The molten tool of special use that is used for multiunit tube joint of the present invention comprises interior molten tool and outer molten tool, interior molten tool and outer molten tool one end are equipped with fixed plate, the fixed plate center has the hole, one side of fixed plate is provided with ring set, the outside and the fixed plate junction of the ring set of interior molten tool are provided with the conical ring face, and the outer wall of interior molten tool ring set is consistent with the pipe box inner wall shape; The end of the ring set of outer molten tool is provided with the conical ring face, and the inwall of the ring set of molten tool is consistent with body end outer wall shape outward.

Advantage of the present invention is that 1. welding quality are good, has thoroughly overcome the defective of existing joint welding poor reliability and insertion vapour lock, makes welding safer convenient.Do not have hidden danger, the welding quality is higher.2. solve the pipeline that reducer coupling is arranged and to have removed the technical problem of contamination in the pipe; Under the same flow condition, compare with other joint, pipe-line system can reduce a specification class, has saved pipe-line system cost cost.3. can block the infiltration of harmful matter in the transmission of available light and the external environment condition fully, prevent the pollution of harmful microbe growth and harmful matter.Fundamentally get rid of the drawback that the joint printing opacity oozes oxygen, ensured the safety of hardware and people's potable water cleaning in the pipeline conscientiously.Simple and reasonable, safe and reliable, low cost of manufacture economizes on resources, and is easy to produce in enormous quantities and apply.

Description of drawings

Fig. 1 is the structural representation of first embodiment of the invention.

Fig. 2 be among Fig. 1 left end pipe box structural representation.

Fig. 3 is the agent structure schematic representation among Fig. 1.

Fig. 4 is the right-hand member pipe box structural representation among Fig. 1.

Fig. 5 is the interior molten structure schematic representation of signing an undertaking that is used for the molten tool of special use of Fig. 1.

Fig. 6 is the outer molten structure schematic representation of signing an undertaking that is used for the molten tool of special use of Fig. 1.

Fig. 7 is the structural representation of second embodiment of the invention.

Fig. 8 is the left end pipe box structural representation among Fig. 7.

Fig. 9 is the agent structure schematic representation among Fig. 7.

Figure 10 is the right-hand member pipe box structural representation among Fig. 7.

Figure 11 is the interior molten structure schematic representation of signing an undertaking that is used for the molten tool of special use of Fig. 7.

Figure 12 is the outer molten structure schematic representation of signing an undertaking that is used for the molten tool of special use of Fig. 7.

Figure 13 is a composite pipe reaming schematic representation.

1. composite pipes among the figure, 2. welding groove, 3. welding platform, 4. pipe box, 5. conical ring face, 6. main body, 7. skin, 8. internal layer, 9. flange, 10. fixed plate, 11. holes, 12. ring sets, 13. ring steps, 14. reamers.

Embodiment

In Fig. 1, the skin 7 of main body 6 is a plastic tube, and the internal layer 8 of main body 6 is for connecting the metal tube of main body inner chamber.Main body 6 two ends all are with pipe box 4, are provided with welding groove 2 and welding platform 3 in the pipe box 4, are provided with conical ring face 5 between the skin 7 of main body 6 and the pipe box 4.Conical ring face 5 is in the middle of main body 6.

In Fig. 3, the internal layer 8 metal tube ends of main body 6 are provided with flange 9.

In Fig. 5, interior molten tool left end is provided with fixed plate 10, fixed plate 10 centers have hole 11, the right side of fixed plate 10 is provided with ring set 12, the outside and fixed plate 10 junctions of the ring set 12 of interior molten tool are provided with conical ring face 5, conical ring face 5 is in the middle of main body 6, and the outer wall of interior molten tool ring set 12 is consistent with pipe box 4 inner wall shape.

In Fig. 6, molten outward tool right-hand member is provided with fixed plate 10, and fixed plate 10 centers have hole 11, the left side of fixed plate 10 is provided with ring set 12, the end of the ring set 12 of outer molten tool is provided with conical ring face 5, and conical ring face 5 is in the middle of main body 6, and the inwall of the ring set 12 of molten tool is consistent with main body 6 end outer wall shapes outward.

In Fig. 7, this embodiment and embodiment's shown in Figure 1 difference is that conical ring face 5 outsides are provided with ring step 13 in the middle of the conical ring face 5 reverse main bodys 6 of pipe box 4 and main body 6.

In Figure 11, the interior molten tool left end that is used for Fig. 7 is provided with fixed plate 10, fixed plate 10 centers have hole 11, the right side of fixed plate 10 is provided with ring set 12, the outside and fixed plate 10 junctions of the ring set 12 of interior molten tool are provided with conical ring face 5, in the middle of the conical ring face 5 reverse main bodys 6, the outer wall of interior molten tool ring set 12 is consistent with pipe box shown in Figure 74 inner wall shape.

In Figure 12, the outer molten tool right-hand member that is used for Fig. 7 is provided with fixed plate 10, fixed plate 10 centers have hole 11, the left side of fixed plate 10 is provided with ring set 12, the end of the ring set 12 of outer molten tool is provided with conical ring face 5, in the middle of the conical ring face 5 reverse main bodys 6, the inwall of the ring set 12 of molten tool is consistent with main body 6 end outer wall shapes shown in Figure 7 outward.

Joint of the present invention is when welding is installed, use reamer 14 with composite pipe 1 end hole enlargement (as shown in figure 13) earlier, again with of welding groove 2 weldings of the molten tool of bigger special use with composite pipe 1 end and pipe box 4, thereby form pipe box 4 inwalls, and then melt tool with pipe box 4 and main body 6 weldings with little No. one special use.

The two ends of multiaspect welding multiunit tube joint of the present invention are the welding except that above-mentioned two ends, can also be that an end is welding, and the other end is screwed connection.Screwed connection can be internal thread or outer silk.Internal thread and outer silk are metal or nonmetal.

The embodiment of the invention one and two is the equal coupling pipe joint, also can be made into reducing coupling joint, one eighth bend, 90 degree elbows, threeway, four-way, the first-class pipe joint of loose joint.

Claims

1. multiaspect welding multiunit tube joint, this multiunit tube joint comprises main body, the skin of main body is a plastic tube, the internal layer that it is characterized in that main body is for connecting the metal tube of main body inner chamber, the main body two ends all are with pipe box, be provided with welding groove and welding platform in the pipe box, be provided with the conical ring face between main body skin and the pipe box.

2. 1 described multiaspect welding multiunit tube joint as requested is characterized in that the metal tube end is provided with flange.

3. 1 described multiaspect welding multiunit tube joint as requested is characterized in that the conical ring face outside is provided with the ring step.

4. the molten tool of special use that is used for claim 1, it is characterized in that special-purpose molten tool melts tool and outer molten tool in comprising, interior molten tool and outer molten tool one end are equipped with fixed plate, the fixed plate center has the hole, one side of fixed plate is provided with ring set, the outside and the fixed plate junction of the ring set of interior molten tool are provided with the conical ring face, and the outer wall of interior molten tool ring set is consistent with the pipe box inner wall shape; The end of the ring set of outer molten tool is provided with the conical ring face, and the inwall of the ring set of molten tool is consistent with body end outer wall shape outward.