CN211145648U - Welding-free connecting pipe joint - Google Patents

Welding-free connecting pipe joint Download PDF

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Publication number
CN211145648U
CN211145648U CN201922161288.1U CN201922161288U CN211145648U CN 211145648 U CN211145648 U CN 211145648U CN 201922161288 U CN201922161288 U CN 201922161288U CN 211145648 U CN211145648 U CN 211145648U
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China
Prior art keywords
pipe
flared
flaring
coupling body
ring
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Active
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CN201922161288.1U
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Chinese (zh)
Inventor
徐志超
李红星
张健
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Qingdao Suhring Connect Technology Co ltd
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Qingdao Suhring Connect Technology Co ltd
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Priority to CN201922161288.1U priority Critical patent/CN211145648U/en
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Abstract

The utility model belongs to the technical field of metal pipe joints, and provides a welding-free connecting pipe joint, which comprises a positioning ring and a connecting pipe joint, wherein the positioning ring is provided with an outer surface limited for a flared pipe; the first connecting body is formed by mechanically connecting the positioning ring and the flared tube; an inner nest having a tube defined for a straight cannula; the second coupling body is formed by mechanically connecting the inner nesting pipe and the straight inserting pipe; a third coupling body mechanically coupled by the second coupling body portion within the flare tube contained by the first coupling body portion; a snap ring having said flared tube outer surface defined for said third coupling body, and upon mechanical coupling of said third coupling body; the utility model discloses a metal tubular product's physical characteristic, thereby reasonable deformation cooperation reaches the purpose of exempting from to weld between the pipe fitting and connecting, practices thrift the cost.

Description

Welding-free connecting pipe joint
Technical Field
The utility model relates to a metal pipe connects technical field, especially relates to a exempt from to weld connecting pipe joint.
Background
With the development of modern large industries, the pipeline fluid industry, particularly the refrigeration industry, the solar industry and even the hospital oxygen therapy bottle are widely applied to metal pipelines, at present, most of the construction site installation of the industries is copper pipes, but the copper resources are seriously short, the cost is higher, the sustainable development of social large production is not facilitated, China is a country with rich aluminum resources, and the aluminum resources with low production cost, abundance and low cost provide convenient conditions. Therefore, copper pipes and aluminum pipes are often connected together to be used as conveying pipelines in refrigeration industry, solar industry and even hospital oxygen bottle industry to form a circulating pipeline system, so that the production cost is reduced, and the copper pipes and the aluminum pipes are generally connected by copper-aluminum joints; a common copper-aluminum joint in the market is provided with a pipe joint structure connected with an aluminum pipe at the end, the pipe joint structure is generally conical, the conical pipe joint structure is inserted into the aluminum pipe, and the connection is carried out in an electric resistance welding mode; however, the conical pipe joint is too simple in structure, the welding quality of the copper aluminum joint and the aluminum pipe is unstable, the welding area is small, the corrosion resistance of the resistance welding mode is weak, and leakage is easy to occur; the second one is a product of German Lokring company, the structure of which is composed of a middle copper pipe part, two ends of which are two aluminum quick closing rings with different diameters, two ends of the middle copper pipe are provided with a closing end, the closing end is directly inserted into a pipeline and then is inserted into the closing end through the quick closing rings, and the pipeline and the copper pipe which are inserted into the closing end are consolidated; such connected mode, the benefit lies in can be through the fast throat that closes that is equipped with on ring sum copper pipe, with the abundant pressfitting of two pipe fittings, sealing performance is also fine, is used for air conditioner pipeline to connect more, perhaps on external pipeline, but such product uses in the market many, and the product leakproofness is good, but its product use material mainly is the copper product, and the cost consumes greatly, and processing technology is loaded down with trivial details, and the low price of efficiency is expensive.
SUMMERY OF THE UTILITY MODEL
In order to overcome the technical defect that the metal pipeline joint of the above-mentioned existing patent and current market circulation has, the utility model discloses the people has carried out deep research to this, after having paid out a large amount of creative work, thereby accomplished the utility model discloses.
Particularly, the utility model discloses the technical problem that solve is: the first physical characteristic that adopts metal tubular product, thereby the reasonable deformation cooperation reaches exempting from to weld between the pipe fitting and connects, and the problem that the big price is expensive of market metal pipe joint consumptive material volume at present is solved to the second, and the third guarantees that the product is connected the effect of back seal and is unanimous with market effect at present.
To achieve the above objects, a welding-free connection pipe joint includes,
a positioning ring having an outer surface defining a flared tube;
the first connecting body is formed by mechanically connecting the positioning ring and the flared tube;
an inner nest having a tube defined for a straight cannula;
the second coupling body is formed by mechanically connecting the inner nesting pipe and the straight inserting pipe;
a third coupling body mechanically coupled by the second coupling body portion within the flare tube contained by the first coupling body portion;
a snap ring having said flared tube outer surface defined for said third coupling body, and after said third coupling body is mechanically coupled.
The utility model discloses in, as an optimal technical scheme, the holding ring is for the flaring ring and establish to former section and holding ring flaring section, and former section and holding ring flaring section joint position are holding ring flaring department.
The utility model discloses in, as an optimal technical scheme, holding ring flaring department mechanical connection in flaring pipe flaring department.
The utility model discloses in, as an optimal technical scheme, nested one end in is equipped with the snap ring, just the external diameter of snap ring is greater than flared tube internal diameter and is less than flared tube external diameter, perhaps the external diameter of snap ring is less than flared tube internal diameter.
The utility model discloses in, as an optimal technical scheme, the snap ring mechanical connection that the endotheca was equipped with in flaring pipe flaring department.
After the technical scheme is adopted, the beneficial effects of the utility model are that:
the utility model discloses in, as an preferred technical scheme, the holding ring is for the flaring ring and establish to former section and holding ring flaring section, and former section and holding ring flaring section joint position are holding ring flaring department, and the size of former section flaring section mouth of pipe internal diameter is less than mechanical fit with it flaring outside diameter of pipe, further realization the holding ring with interference fit's between the flaring pipe mode makes the holding ring with the holding ring exerts load to the flaring pipe during interference fit between the flaring pipe, reaches the deformation of the size emergence stress allowed range of flaring pipe.
The utility model discloses in, as an optimal technical scheme, holding ring flaring department mechanical connection in flaring pipe flaring department, further with flaring pipe mechanical cooperation when applying radial load to the flaring pipe, further can inlay outward in order to force holding ring flaring department flaring pipe flaring department, and reach the purpose of applying radial internal pressure to flaring pipe flaring department, make the deformation in the size emergence stress allowed range of specific flaring pipe flaring department.
The utility model discloses in, as an optimal technical scheme, interior nested one end is equipped with the snap ring, just the external diameter of snap ring is greater than flared tube internal diameter and is less than flared tube external diameter, perhaps the external diameter of snap ring is less than flared tube internal diameter, and the size of the cover body is greater than the flared tube internal diameter and is less than the flared tube external diameter, and nested holistic dimensional design further guarantees interior nested and direct insert pipe and flared tube between interference fit's mechanical connection relation, perhaps the external diameter of snap ring is less than flared tube internal diameter, guarantees that nested can further mechanical assembly advance in the straight insert pipe in realizing.
The utility model discloses in, as an optimal technical scheme, the snap ring mechanical connection that the endotheca was equipped with in flaring pipe flaring department, the interference fit's that passes through snap ring and flaring pipe flaring department mode can further force the snap ring to produce radial outside holding power to flaring pipe flaring department, thereby realizes owing the position fixing ring has further supporting role to the deformation department that flaring pipe radial inward pressure produced.
The beneficial effect of global design: from the aspect of product connection structure design, the utility model relates to a welding-free connecting pipe joint which adopts a welding-free cold connection mode to pass through, and reasonably deforms and cooperates by fully utilizing the physical characteristics of metal pipes so as to achieve the welding-free connection between pipe fittings and natural sealing insertion under an ideal state; from product cost, compare in present copper aluminium pipe joint commonly used at present, nested in its advantage and characteristics are exactly through the design, replace the copper joint on the copper aluminium pipe joint on the existing market, save from the material and can reduce the copper product loss, the utility model discloses reduce product technology course of working, reduce the product metal material loss and further can realize connecting the same effect even better with present.
Drawings
FIG. 1 is a schematic view of the overall front view structure in the embodiment of the present invention;
FIG. 2 is a schematic view of the embodiment of the present invention showing the overall front view
FIG. 3 is a sectional view of the embodiment of the present invention;
FIG. 4 is a schematic structural diagram of an inner nested part in an embodiment of the present invention;
fig. 5 is a schematic structural diagram of positioning ring components in an embodiment of the present invention.
In the figure, 1-flared tube, 101-flared section, 102-flared tube flared section, 2-positioning ring, 201-positioning ring flared section, 202-positioning ring flared section, 203-original section, 3-quick-closing ring, 4-inner nesting, 401-snap ring, 402-sleeve body and 5-straight-insertion tube
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. Referring to fig. 1-5, a weld-free joint for connecting pipes includes,
a positioning ring 2 having an outer surface defining a passage for the flared tube 1;
the first connecting body is formed by mechanically connecting the positioning ring 2 and the flared tube 1;
an inner nest 4 having a tube defined for a straight cannula 5;
the second coupling body is formed by mechanically connecting the inner nest 4 and the straight insertion pipe 5;
a third coupling body mechanically connected by the second coupling body part within the flared tube 1 contained by the first coupling body part;
a snap ring 3 having an outer surface defining said flared tube 1 for said third coupling, and after said third coupling is mechanically coupled.
The utility model discloses in, as an optimal technical scheme, holding ring 2 is for the flaring ring and establish to former section 203 and holding ring flaring section 202, and former section 203 and holding ring flaring section 202 meet the position and be holding ring flaring 201, and former section 203 and holding ring flaring section 202 mouth of pipe internal diameter's size is less than with it mechanical fit the 1 external diameter of flaring pipe, further realization holding ring 2 with interference fit's between the flaring pipe 1 mode makes holding ring 2 with holding ring 2 applys radial load to flaring pipe 1 during interference fit between the flaring pipe 1, reaches the deformation of flaring pipe 1's size emergence stress allowed range.
The utility model discloses in, as an optimal technical scheme, holding ring flaring department 201 mechanical connection in flaring pipe flaring department 102, further with 1 mechanical cooperation of flaring pipe exert radial load to flaring pipe 1, further can inlay outward in order to force the holding ring flaring department 201 of guaranteeing to flare pipe flaring department 102, and reach the purpose of exerting radial inward pressure to flaring pipe flaring department 102, make the deformation in the stress allowed range take place for the size of specific flaring pipe flaring department 102.
The utility model discloses in, as an optimal technical scheme, interior nested 4 one end is equipped with snap ring 401, just snap ring 401's external diameter is greater than 1 internal diameter of flared tube and is less than 1 external diameter of flared tube, perhaps snap ring 401's external diameter is less than 1 internal diameter of flared tube, and cover body 402's size is greater than 5 internal diameter of straight intubate and is less than 5 external diameter of straight intubate's design, further guarantees interior nested 4 and straight intubate 5 and flared tube 1 between interference fit's the mechanical connection relation, perhaps snap ring 401's external diameter is less than 1 internal diameter of flared tube, guarantees that nested 4 can further mechanical assembly go into straight intubate 1 in the realization.
The utility model discloses in, as an optimal technical scheme, the snap ring 401 mechanical connection that interior nest 4 was equipped with in flaring pipe flaring mouth department 102, the interference fit's that can further force snap ring 401 to flaring pipe flaring mouth department 102 through snap ring 401 and flaring pipe flaring mouth department 102 mode produces radial outside holding power, thereby realizes owing holding ring 2 has further supporting role to the deformation department that flaring pipe 1 radial inward pressure produced.
The whole process is installed and implemented:
during installation, the positioning ring 2 and the flared tube 1 are mechanically connected in an interference fit mode through mechanical force, the positioning ring flared part 201 included by the positioning ring 2 is externally embedded into the outer side of the flared tube flared part 102 included by the flared tube 1 in an interference fit mode in a specific matched installation state, and the original section 203 of the positioning ring 2 is in interference fit with the flared tube 1 to enable the whole flared tube 1 to shrink and deform within a stress allowable range, so that a first connecting body is formed, at the moment, the first connecting body is in a state that the positioning ring 2 exerts inward pressure on the flared tube 1, meanwhile, the flared tube flared part 102 generates inward compression deformation force perpendicular to the position, and the positioning ring flared part 201 exerts inward radial force on the flared tube flared part 102; then, the inner nest 4 is installed in a matched mode with the straight insertion pipe 5 in an interference fit mode through mechanical force, and a clamping ring 401 arranged on the inner nest 4 is further attached to the pipe orifice of the straight insertion pipe 5 to form a second coupling body; then the snap ring 401 on the second coupling body is opposite to the mouth of the flared section 101 of the flared tube 1 of the first coupling body, and coaxial insertion is carried out through mechanical force, so that the snap ring 401 on the second coupling body is embedded into the flared tube flared section 102 of the flared tube of which the stress allowable range is contracted and deformed in the flared section 101 of the first coupling body, thereby forming a third coupling body, at the moment, the state of the third coupling body is that the snap ring 401 is embedded into the flared tube flared section 102 of the flared tube of which the stress allowable range is contracted and deformed in the flared tube flared section 101 of the first coupling body, a force opposite to the inward compressive deformation force at the position perpendicular to the flared tube flared section 102 can be generated, and the force is balanced, and when the second coupling body is mechanically assembled into the first coupling body, because the flared tube flared section 201 of the first coupling body generates a radial inward force effect on the flared tube flared section 102, so that when the second coupling body is, preventing the second coupling body from damaging the flare 102 of the flare of the first coupling body under the action of mechanical force; finally, the quick-closing ring 3 is mounted by mechanical force from the flared end 101 of the flared tube 1 of the third coupling body with a coaxial interference fit and with the front end of the quick-closing ring 3 mounted against the flared end 202 of the positioning ring 2, thus forming a complete whole.
The complete working process comprises the following steps: the physical property of the metal material is reasonably utilized, when the first and the second coupling bodies are prepared and the first and the second coupling bodies are coaxially inserted in place, namely, the snap ring 401 arranged on the inner nest 4 is attached to the flaring pipe flaring port 102, at this time, an external force is applied between the positioning ring 2 and the quick-closing ring 3, firstly, the positioning ring 2 can overturn by taking the vertical surface vertical to the flaring pipe flaring port 102 as an axis and taking the circular diameter as a track towards the direction of the quick-closing ring 3, so that the positioning ring 2 further radially compresses the flaring section 101 of the flaring pipe 1, the diameter reduction of the flaring section 101 of the flaring pipe 1 can prevent the second coupling body from withdrawing from the first coupling body, and simultaneously, the radial supporting force of the snap ring 401 of the inner nest 4 can be realized, the supporting force for the flaring tube flaring port 102 enables the flaring tube flaring port 102 to bear larger external force, thereby ensuring the realization of the reliable connection process of the metal pipes and the low-cost connection and sealing requirements to be achieved.
Elevation: the term "facade" as used in this installation is not an industry term and refers only to a facade that is formed vertically and through the center of a cylindrical workpiece during assembly.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims (5)

1. A welding-free connecting pipe joint comprises a connecting pipe body,
a positioning ring having an outer surface defining a flared tube;
the first connecting body is formed by mechanically connecting the positioning ring and the flared tube;
an inner nest having a tube defined for a straight cannula;
the second coupling body is formed by mechanically connecting the inner nesting pipe and the straight inserting pipe;
a third coupling body mechanically coupled by the second coupling body portion within the flare tube contained by the first coupling body portion;
a snap ring having said flared tube outer surface defined for said third coupling body, and after said third coupling body is mechanically coupled.
2. The solderless connecting tube joint of claim 1, wherein: the positioning ring is a flared ring and is provided with an original section and a positioning ring flared section, and the joint position of the original section and the positioning ring flared section is the positioning ring flared part.
3. The solderless connecting tube joint of claim 2, wherein: and the flaring part of the positioning ring is mechanically connected to the flaring part of the flaring pipe.
4. The solderless connecting tube joint of claim 1, wherein: the inner nesting end is provided with a clamping ring, the outer diameter of the clamping ring is larger than the inner diameter of the flared pipe and smaller than the outer diameter of the flared pipe, or the outer diameter of the clamping ring is smaller than the inner diameter of the flared pipe.
5. The solderless connecting tube joint of claim 4, wherein: the snap ring that the embedded cover was equipped with mechanically connect in flaring pipe flaring department.
CN201922161288.1U 2019-12-05 2019-12-05 Welding-free connecting pipe joint Active CN211145648U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922161288.1U CN211145648U (en) 2019-12-05 2019-12-05 Welding-free connecting pipe joint

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201922161288.1U CN211145648U (en) 2019-12-05 2019-12-05 Welding-free connecting pipe joint

Publications (1)

Publication Number Publication Date
CN211145648U true CN211145648U (en) 2020-07-31

Family

ID=71745717

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201922161288.1U Active CN211145648U (en) 2019-12-05 2019-12-05 Welding-free connecting pipe joint

Country Status (1)

Country Link
CN (1) CN211145648U (en)

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