CN211259951U - Pipe fitting for quick connection of stainless steel corrugated pipe - Google Patents
Pipe fitting for quick connection of stainless steel corrugated pipe Download PDFInfo
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- CN211259951U CN211259951U CN201921557963.6U CN201921557963U CN211259951U CN 211259951 U CN211259951 U CN 211259951U CN 201921557963 U CN201921557963 U CN 201921557963U CN 211259951 U CN211259951 U CN 211259951U
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Abstract
The utility model discloses a pipe fitting for stainless steel bellows high-speed joint, including cup jointing in the bellows end and with advance/outlet duct fixed connection's adapter sleeve, still locate the compressing tightly cover on the bellows including the cover, the adapter sleeve passes through screw thread fixed connection with compressing tightly the cover, the adapter sleeve with compress tightly and be provided with the interior rand that the cover located on the bellows between the cover, the inner wall of adapter sleeve is provided with the cyclic annular fluting that the rand put into in the junction confession that is located the adapter sleeve and compresses tightly the cover, the inner circle butt of interior rand is on the outer wall of bellows, the both ends face of interior rand butt respectively on cyclic annular grooved inner wall and the terminal surface that compresses tightly the cover, the material of interior rand is the plastic material of easy deformation, this pipe fitting gas tightness is strong, can use in one's hands.
Description
Technical Field
The utility model relates to a gas is carried and is used stainless steel hose and pipe fitting technical field, concretely relates to stainless steel bellows is pipe fitting for quick connect.
Background
Along with the popularization of gas such as natural gas, the gas-cooker obtains more and more application, needs the gas coupling to connect and seal mostly between the coupling hose that admits air and the air inlet of gas cooking utensils, and current sealing washer is made by rubber more, and rubber seal uses can take place after a period like surface fracture sclerosis, ageing phenomena such as elasticity variation influence the use of gas pipeline. In severe cases, gas leakage can occur, and life is jeopardized.
Chinese patent CN208503729U discloses a gas coupling, including connecting the pipe fitting, connect the pipe fitting including the joint pipe, breather pipe and seal assembly, joint pipe and breather pipe fixed connection, seal assembly sets up the surface at the breather pipe, seal assembly is including compressing tightly the part and connect the nut soon, compress tightly the part and articulate the relative and joint pipe laminating one end with the breather pipe outer wall, connect the outer wall sliding connection of nut and joint pipe soon, it is provided with and connects nut complex external screw thread soon to compress tightly the part to keep away from joint pipe one end relatively, when connecing soon, compress tightly the part and will gas pipe one end and joint pipe laminating. The gas pipe joint is made of stainless steel, so that the phenomenon of corrosion of the gas pipe joint is avoided, and the practical service life of the gas pipe joint is ensured; meanwhile, the joint pipe is in a round table shape and is easy to be connected with a gas pipe; the design of seal assembly can enough guarantee that the gas can not leak, can guarantee again that the gas pipe can not drop, guarantees safe in utilizationly.
The gas tightness of the gas pipe depends on the rubber sealing ring, and rubber is aged gradually along with the lapse of time, so that the gas tightness of the gas pipe is gradually reduced until gas leakage occurs.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a pipe fitting is used to nonrust corrugated steel pipe high-speed joint, this pipe fitting gas tightness is strong, can use in one's hands, the condition that quality problems caused unable equipment can not appear.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a pipe fitting for stainless steel bellows high-speed joint, including cup jointing in the bellows end and with advance/outlet duct fixed connection's adapter sleeve, still including the compressing tightly cover of cover on locating the bellows, adapter sleeve and compressing tightly the cover and pass through screw thread fixed connection, be provided with the interior rand of cover on locating the bellows between adapter sleeve and the compressing tightly cover, the inner wall of adapter sleeve is provided with the annular fluting that the junction that is located adapter sleeve and compressing tightly cover supplied interior rand to put into, the inner circle butt of interior rand is on the outer wall of bellows, the both ends face of interior rand butt respectively on the terminal surface of annular fluting inner wall and compressing tightly cover, the material of interior rand is the plastic material of easy deformation.
As a preferred scheme of the pipe fitting for the quick connection of the stainless steel corrugated pipe, the inner clamping ring comprises a ferrule, a first annular flange and a second annular flange, the ferrule, the first annular flange and the second annular flange are integrated, the first annular flange and the second annular flange are arranged at the same end of the ferrule, the first annular flange extends outwards in the radial direction relative to the axis of the ferrule, the second annular flange extends inwards in the radial direction relative to the axis of the ferrule, and the distance between the inner wall of the pressing sleeve and the outer wall of the corrugated pipe is equal to the thickness of the ferrule.
As a preferable scheme of the pipe fitting for the quick connection of the stainless steel corrugated pipe, the surface, facing the pressing sleeve, of the second annular flange is in transition with the inner wall of the ferrule through a fillet.
As an optimal scheme of the pipe fitting for the quick connection of the stainless steel corrugated pipe, the quick connection pipe fitting further comprises a first sealing ring, the first sealing ring is sleeved at the end part of the corrugated pipe, the connecting sleeve is sleeved at the outer side of the first sealing ring, the end face of the inner wall of the connecting sleeve is abutted against the end face of the outer wall of the first sealing ring, and the end face of the inner wall of the first sealing ring is abutted against the end face of the corrugated pipe.
As an optimal scheme of the pipe fitting for the rapid connection of the stainless steel corrugated pipe, the stainless steel corrugated pipe quick connection device further comprises a second sealing ring, the second sealing ring is sleeved on the corrugated pipe and is nested and installed inside a pressing sleeve, an annular groove used for clamping the second sealing ring is formed in the inner circumferential surface of the pressing sleeve, the inner ring of the second sealing ring is in interference fit with the corrugated pipe, and the outer wall of the second sealing ring is abutted to the inner wall of the annular groove.
As a preferable scheme of the pipe fitting for quickly connecting the stainless steel corrugated pipe, a stop ring abutting against the end face of the first seal ring is arranged inside the connecting sleeve, and the stop ring is an annular flange extending radially inwards relative to the axis of the connecting sleeve.
As a preferred scheme of the pipe fitting for the quick connection of the stainless steel corrugated pipe, the quick connection device further comprises a third sealing ring, wherein the third sealing ring is arranged inside the connecting sleeve and is positioned between the end face of the stop ring and the end face of the air inlet/outlet pipe.
As a preferred scheme of the pipe fitting for the quick connection of the stainless steel corrugated pipe, the outer walls of the connecting sleeve and the pressing sleeve are provided with hexagonal peripheral walls.
As a preferred scheme of the pipe fitting for the quick connection of the stainless steel corrugated pipe, the quick connection device further comprises an auxiliary clamping ring, the auxiliary clamping ring comprises a clamping ring, the projection of the clamping ring in the axial direction is in a fan ring shape with a central angle larger than 180 degrees, and before installation, the clamping ring is coaxial with the corrugated pipe and is installed between the connecting sleeve and the pressing sleeve.
As a preferred scheme of a pipe fitting for the quick connection of the stainless steel corrugated pipe, the auxiliary clamping ring further comprises a handle, the handle is a flat strip shape extending outwards from the outer wall of the clamping ring in the radial direction, the handle is symmetrical relative to the symmetrical plane of the clamping ring, and the outer surface of the handle is provided with convex patterns.
The utility model has the advantages that:
the installer sequentially sleeves the pressing sleeve, the inner clamping ring and the connecting sleeve on the corrugated pipe, then fixedly connects the connecting sleeve with the air inlet/outlet pipe, then connects the connecting sleeve with the pressing sleeve through threads and presses the inner clamping ring in the annular slot, the inner clamping ring deforms under the extrusion of the end surfaces of the inner walls of the connecting sleeve and the pressing sleeve, the peripheral wall of the inner clamping ring is hermetically connected with the inner walls of the corrugated pipe, the connecting sleeve and the pressing sleeve, and a first sealing surface and a second sealing surface are formed;
the first sealing ring forms a third sealing surface between the end surface of the corrugated pipe and the end surface of the inner wall of the connecting sleeve;
the second sealing ring enables a fourth sealing surface to be formed between the outer surface of the corrugated pipe and the inner wall of the pressing sleeve;
the third sealing ring forms a fifth sealing surface between the end surface of the stop ring and the end surface of the air inlet/outlet pipe;
one end, far away from the second annular flange, of the ferrule bends downwards to generate plastic deformation and is clamped between two adjacent flanges on the corrugated pipe, so that one end, far away from the second annular flange, of the ferrule and the second annular flange are combined to form a clamping ring clamped at two grooves on the corrugated pipe, the inner clamping ring cannot axially move relative to the corrugated pipe, and the connecting sleeve and the pressing sleeve cannot axially move relative to the corrugated pipe;
the snap ring is used for isolating the connecting sleeve and the pressing sleeve, so that the distance for enabling the inner snap ring not to deform is still reserved between the connecting sleeve and the pressing sleeve when the connecting sleeve and the pressing sleeve are screwed down, and the phenomenon that the inner snap ring deforms and cannot be used when the inner snap ring leaves a factory is avoided.
1. The pipe fitting provides air tightness through the disposable inner clamping ring inside, so that the air tightness is strong;
2. the pipe fitting finishes assembling when leaving the factory, and simultaneously avoids the damage of the disposable inner clamping ring through the auxiliary clamping ring, so that a user can use the pipe fitting in hand, and the condition of incapable assembling caused by quality problems can not occur.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a perspective view of a stainless steel corrugated pipe fitting for quick connection according to an embodiment of the present invention in a delivery state;
FIG. 2 is a perspective view showing an installation state of a pipe fitting for quick connection of a corrugated stainless steel pipe according to an embodiment of the present invention;
FIG. 3 is an exploded perspective view of FIG. 1;
fig. 4 is a cross-sectional view of a stainless steel corrugated pipe quick connection pipe fitting according to an embodiment of the present invention in an outgoing state;
FIG. 5 is a sectional view showing an installation state of a pipe fitting for quick connection of a corrugated stainless steel pipe according to an embodiment of the present invention;
fig. 6 is a cross-sectional view of a stainless steel corrugated pipe quick-connect fitting according to an embodiment of the present invention, after the corrugated pipe and the inlet/outlet pipe are removed from the factory;
fig. 7 is a sectional view of the assembled state of the connecting sleeve and the pressing sleeve of the pipe fitting for quick connection of the stainless steel corrugated pipe according to the embodiment of the present invention;
fig. 8 is a sectional view of an inner clamp ring of a quick connecting pipe fitting for a corrugated stainless steel pipe according to an embodiment of the present invention;
fig. 9 is a perspective view of an auxiliary snap ring of a pipe fitting for quick connection of a stainless steel corrugated pipe according to an embodiment of the present invention;
in the figure:
1. a first seal ring;
2. connecting sleeves; 2a, annular slotting; 2b, a stop ring; 2c, a first hexagonal peripheral wall;
3. a compression sleeve; 3a, an annular groove; 3b, a second hexagonal peripheral wall;
4. a second seal ring;
5. an inner collar; 5a, a ferrule; 5b, a first annular flange; 5c, a second annular flange;
6. a third seal ring;
7. a bellows;
8. an auxiliary snap ring; 8a, a snap ring; 8b, a handle; 8b1, relief.
Detailed Description
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not indicated or implied that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are used only for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms will be understood by those skilled in the art according to the specific circumstances.
In the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" or the like, if appearing to indicate a connection relationship between the components, is to be understood broadly, for example, as being either a fixed connection, a detachable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other components or may be in an interactive relationship with one another. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 to 9, a pipe fitting for rapid connection of a stainless steel corrugated pipe comprises a connecting sleeve 2 sleeved on an end of the corrugated pipe and fixedly connected with an air inlet/outlet pipe, and further comprises a pressing sleeve 3 sleeved on the corrugated pipe, the connecting sleeve 2 and the pressing sleeve 3 are fixedly connected through threads, an inner collar 5 sleeved on the corrugated pipe is arranged between the connecting sleeve 2 and the pressing sleeve 3, an annular slot 2a located at a joint of the connecting sleeve 2 and the pressing sleeve 3 and used for the inner collar 5 to be inserted into is arranged on an inner wall of the connecting sleeve 2, an inner ring of the inner collar 5 abuts against an outer wall of the corrugated pipe, two end faces of the inner collar 5 abut against an inner wall of the annular slot 2a and an end face of the pressing sleeve 3 respectively, and the inner collar 5 is made of a plastic material easy to deform.
The installer sequentially sleeves the pressing sleeve 3, the inner clamping ring 5 and the connecting sleeve 2 on the corrugated pipe 7, then fixedly connects the connecting sleeve 2 with the air inlet/outlet pipe, then connects the connecting sleeve 2 with the pressing sleeve 3 through threads and presses the inner clamping ring 5 in the annular slot 2a, the inner clamping ring 5 deforms under the extrusion of the end surfaces of the inner walls of the connecting sleeve 2 and the pressing sleeve 3, thereby being firmly clamped in the bulge part of the outer wall of the corrugated pipe 7 and being in airtight connection with the inner walls of the connecting sleeve 2 and the pressing sleeve 3, thereby playing the roles of stopping and sealing, on one hand, the inner clamping ring 5 is clamped in the bulge part of the outer wall of the corrugated pipe 7, thereby preventing the connecting sleeve 2 and the pressing sleeve 3 from moving towards the direction far away from the corrugated pipe 7, further preventing the connecting sleeve 2 and the pressing sleeve 3 from falling off from the end of the corrugated pipe 7, and on the other hand, the peripheral wall of the clamping, the first and second sealing surfaces are formed, thereby achieving good sealing effect and avoiding air leakage of the corrugated pipe 7.
The inner collar 5 comprises a ferrule 5a, a first annular flange 5b and a second annular flange 5c, the ferrule 5a, the first annular flange 5b and the second annular flange 5c are a single piece, the first annular flange 5b and the second annular flange 5c are arranged at the same end of the ferrule 5a, the first annular flange 5b extends radially outwards relative to the axis of the ferrule 5a, the second annular flange 5c extends radially inwards relative to the axis of the ferrule 5a, and the distance between the inner wall of the compression sleeve 3 and the outer wall of the bellows is equal to the thickness of the ferrule 5 a.
The ferrule 5a is used for being sleeved on the outer wall of the corrugated pipe 7, the first annular flange 5b is used for abutting against the end faces of the inner walls of the connecting sleeve 2 and the pressing sleeve 3, the second annular flange 5c is used for being clamped between two adjacent flanges on the corrugated pipe 7, after the connecting sleeve 2 and the pressing sleeve 3 are in threaded connection and the inner clamping rings 5 are mutually extruded, the surface of the first annular flange 5b is inwards sunken to generate plastic deformation and is tightly attached to the inner walls of the connecting sleeve 2 and the pressing sleeve 3 respectively to form a first sealing surface and a second sealing surface, one end, far away from the second annular flange 5c, of the ferrule 5a is bent downwards to generate plastic deformation and is clamped between the two adjacent flanges on the corrugated pipe 7, so that one end, far away from the second annular flange 5c, of the ferrule 5a and the second annular flange 5c are combined to form a clamping ring clamped between the two grooves on the corrugated pipe 7, and further the inner, the nipple 2 and the clamping nipple 3 are also not axially displaceable relative to the bellows 7.
The second annular flange 5c is rounded off between the side facing the clamping sleeve 3 and the inner wall of the collar 5 a.
The fillet is used for protecting the flange part of the corrugated pipe 7, external stress concentration in the process of screwing the connecting sleeve 2 and the pressing sleeve 3 and internal stress concentration generated after screwing the connecting sleeve 2 and the pressing sleeve 3 are reduced, and the phenomenon that the ferrule 5a is clamped to be deformed or even broken when deformed and the second annular flange 5c clamps the flange of the corrugated pipe is avoided.
The corrugated pipe sealing device is characterized by further comprising a first sealing ring 1, wherein the first sealing ring 1 is sleeved at the end part of the corrugated pipe, a connecting sleeve 2 is sleeved on the outer side of the first sealing ring 1, the end face of the inner wall of the connecting sleeve 2 is abutted against the end face of the outer wall of the first sealing ring 1, and the end face of the inner wall of the first sealing ring 1 is abutted against the end face of the corrugated pipe.
The first sealing ring 1 is clamped between the connecting sleeve 2 and the corrugated pipe 7 and used for reducing the possibility that the inner wall of the connecting sleeve 2 damages the outer wall of the corrugated pipe 7, and meanwhile, a third sealing surface is formed between the end surface of the corrugated pipe 7 and the end surface of the inner wall of the connecting sleeve 2, so that the air tightness of the pipe fitting is enhanced.
The corrugated pipe sealing device is characterized by further comprising a second sealing ring 4, the second sealing ring 4 is sleeved on the corrugated pipe, the second sealing ring 4 is nested and installed inside the pressing sleeve 3, an annular groove 3a used for clamping the second sealing ring 4 is formed in the inner circumferential surface of the pressing sleeve 3, the inner ring of the second sealing ring 4 is in interference fit with the corrugated pipe, and the outer wall of the second sealing ring 4 is abutted to the inner wall of the annular groove 3 a.
The second sealing ring 4 is used for connecting the pressing sleeve 3 and the corrugated pipe 7 in an airtight manner, so that a fourth sealing surface is formed between the outer surface of the corrugated pipe 7 and the inner wall of the pressing sleeve 3, and the airtightness of the pipe fitting is enhanced.
The connecting sleeve 2 is internally provided with a stop ring 2b abutting against the end surface of the first seal ring 1, and the stop ring 2b is an annular flange extending radially inwards relative to the axis of the connecting sleeve 2.
The stop ring 2b is used for abutting against the end face of the first sealing ring 1, so that the contact area between the first sealing ring 1 and the end face of the connecting sleeve 2 is enlarged, and the air tightness of the connection between the first sealing ring 1 and the connecting sleeve 2 is improved.
The sealing device also comprises a third sealing ring 6, wherein the third sealing ring 6 is arranged in the connecting sleeve 2, and the third sealing ring 6 is positioned between the end surface of the stop ring 2b and the end surface of the air inlet/outlet pipe.
The third seal ring 6 is used for connecting the connecting sleeve 2 and the air inlet/outlet pipe in an airtight manner, and a fifth seal surface is formed between the end surface of the stop ring 2b and the end surface of the air inlet/outlet pipe, so that excellent airtightness is provided for the connection between the stop ring 2b and the air inlet/outlet pipe.
The outer walls of the connecting sleeve 2 and the pressing sleeve 3 are both provided with hexagonal peripheral walls.
The outer wall of the connecting sleeve 2 is provided with a first hexagonal peripheral wall 2c coaxial with the axis of the connecting sleeve 2, the outer wall of the pressing sleeve 3 is provided with a second hexagonal peripheral wall 3b coaxial with the axis of the pressing sleeve 3, and the first hexagonal peripheral wall 2c and the second hexagonal peripheral wall 3b are both used for installation requirements, so that an installer can conveniently rotate the first hexagonal peripheral wall 2c and the second hexagonal peripheral wall 3b by using a wrench, and the connecting sleeve 2 and the pressing sleeve 3 are firmly connected together through threads.
The corrugated pipe clamping device is characterized by further comprising an auxiliary clamping ring 8, wherein the auxiliary clamping ring 8 comprises a clamping ring 8a, the projection of the clamping ring 8a in the axial direction is in a fan-ring shape with a central angle larger than 180 degrees, and before installation, the clamping ring 8a is coaxial with the corrugated pipe and is installed between the connecting sleeve 2 and the pressing sleeve 3.
In order to avoid that the pipe fitting cannot be assembled or parts are lost due to quality problems after leaving the factory, the pipe fitting is assembled already when leaving the factory, but if the connecting sleeve 2 and the pressing sleeve 3 are screwed too tightly during the pipe fitting leaving the factory and assembling, the inner clamping ring 5 is subjected to plastic deformation, and once the inner clamping ring 5 is subjected to plastic deformation, the inner clamping ring cannot be disassembled, or the inner clamping ring 5 is damaged immediately after being disassembled;
therefore, during installation, the snap ring 8a is required to be inserted between the connecting sleeve 2 and the pressing sleeve 3, and the snap ring 8a is used for isolating the connecting sleeve 2 and the pressing sleeve 3, so that when the connecting sleeve 2 and the pressing sleeve 3 are screwed down, a distance for enabling the inner snap ring 5 to be unlikely to deform is still reserved between the connecting sleeve 2 and the pressing sleeve 3, and the phenomenon that the inner snap ring 5 deforms and cannot be used when leaving a factory is avoided.
The auxiliary snap ring 8 further comprises a handle 8b, the handle 8b is a flat strip extending radially outwards from the outer wall of the snap ring 8a, the handle 8b is symmetrical relative to the symmetry plane of the snap ring 8a, and the outer surface of the handle 8b is provided with a convex pattern 8b 1.
The utility model discloses a theory of operation:
the installer sequentially sleeves the pressing sleeve 3, the inner clamping ring 5 and the connecting sleeve 2 on the corrugated pipe 7, then fixedly connects the connecting sleeve 2 with the air inlet/outlet pipe, then connects the connecting sleeve 2 with the pressing sleeve 3 through threads and presses the inner clamping ring 5 in the annular slot 2a, the inner clamping ring 5 deforms under the extrusion of the end surfaces of the inner walls of the connecting sleeve 2 and the pressing sleeve 3, the peripheral wall of the inner clamping ring 5 is hermetically connected with the inner walls of the corrugated pipe 7, the connecting sleeve 2 and the pressing sleeve 3, and a first sealing surface and a second sealing surface are formed;
the first sealing ring 1 forms a third sealing surface between the end surface of the corrugated pipe 7 and the end surface of the inner wall of the connecting sleeve 2;
the second sealing ring 4 forms a fourth sealing surface between the outer surface of the corrugated pipe 7 and the inner wall of the pressing sleeve 3;
the third seal ring 6 forms a fifth seal surface between the end surface of the stop ring 2b and the end surface of the inlet/outlet pipe;
one end, far away from the second annular flange 5c, of the ferrule 5a bends downwards to generate plastic deformation and is clamped between two adjacent flanges on the corrugated pipe 7, so that one end, far away from the second annular flange 5c, of the ferrule 5a and the second annular flange 5c are combined to form a clamping ring clamped at two grooves on the corrugated pipe 7, further, the inner clamping ring 5 cannot axially move relative to the corrugated pipe 7, and the connecting sleeve 2 and the pressing sleeve 3 cannot axially move relative to the corrugated pipe 7;
the snap ring 8a is used for isolating the connecting sleeve 2 and the pressing sleeve 3, so that a distance for enabling the inner clamping ring 5 to be unlikely to deform is still reserved between the connecting sleeve 2 and the pressing sleeve 3 when the connecting sleeve 2 and the pressing sleeve 3 are screwed down, and the phenomenon that the inner clamping ring 5 deforms and cannot be used when leaving a factory is avoided.
It should be understood that the above-described embodiments are merely illustrative of the preferred embodiments of the present invention and the technical principles thereof. It will be understood by those skilled in the art that various modifications, equivalents, changes, and the like can be made to the present invention. However, these modifications are within the scope of the present invention as long as they do not depart from the spirit of the present invention. In addition, certain terms used in the specification and claims of the present application are not limiting, but are used merely for convenience of description.
Claims (10)
1. The utility model provides a pipe fitting for stainless steel bellows quick connect, a serial communication port, including cup joint in bellows end and with advance/outlet duct fixed connection's adapter sleeve (2), still including pressing sleeve (3) of cover locating on the bellows, adapter sleeve (2) and pressing sleeve (3) pass through screw thread fixed connection, be provided with between adapter sleeve (2) and the pressing sleeve (3) and overlap interior rand (5) of locating on the bellows, the inner wall of adapter sleeve (2) is provided with the junction that is located adapter sleeve (2) and pressing sleeve (3) and supplies interior rand (5) to put into annular fluting (2a), the inner circle butt of interior rand (5) is on the outer wall of bellows, the both ends face butt respectively of interior rand (5) is on the inner wall of annular fluting (2a) and the terminal surface that presses sleeve (3), the material of interior rand (5) is the plastic material of easily deformation.
2. A corrugated stainless steel pipe quick connect fitting according to claim 1, wherein the inner collar (5) comprises a ferrule (5a), a first annular flange (5b) and a second annular flange (5c), the ferrule (5a), the first annular flange (5b) and the second annular flange (5c) being a single piece, the first annular flange (5b) and the second annular flange (5c) being disposed at the same end of the ferrule (5a), the first annular flange (5b) extending radially outward relative to the axis of the ferrule (5a), the second annular flange (5c) extending radially inward relative to the axis of the ferrule (5a), the spacing between the inner wall of the compression sleeve (3) and the outer wall of the corrugated pipe being equal to the thickness of the ferrule (5 a).
3. A corrugated stainless steel pipe quick-connect fitting according to claim 2, characterized in that the second annular flange (5c) is rounded off between the side facing the clamping sleeve (3) and the inner wall of the ferrule (5 a).
4. The pipe fitting for the rapid connection of the stainless steel corrugated pipe as claimed in claim 1, further comprising a first seal ring (1), wherein the first seal ring (1) is sleeved on the end of the corrugated pipe, the connecting sleeve (2) is sleeved on the outer side of the first seal ring (1), the end surface of the inner wall of the connecting sleeve (2) is abutted against the end surface of the outer wall of the first seal ring (1), and the end surface of the inner wall of the first seal ring (1) is abutted against the end surface of the corrugated pipe.
5. The pipe fitting for the rapid connection of the stainless steel corrugated pipe according to claim 1, further comprising a second sealing ring (4), wherein the second sealing ring (4) is sleeved on the corrugated pipe, the second sealing ring (4) is nested inside the pressing sleeve (3), an annular groove (3a) for clamping the second sealing ring (4) is formed in the inner circumferential surface of the pressing sleeve (3), the inner ring of the second sealing ring (4) is in interference fit with the corrugated pipe, and the outer wall of the second sealing ring (4) is abutted to the inner wall of the annular groove (3 a).
6. A corrugated stainless steel pipe quick-connect fitting according to claim 4, characterized in that the interior of the connection sleeve (2) is provided with a stop ring (2b) abutting against the end face of the first sealing ring (1), the stop ring (2b) being an annular flange extending radially inward with respect to the axis of the connection sleeve (2).
7. A pipe fitting for the quick connection of a stainless steel corrugated pipe according to claim 6, characterized by further comprising a third seal ring (6), wherein the third seal ring (6) is installed inside the connecting sleeve (2), and the third seal ring (6) is located between the end face of the stop ring (2b) and the end face of the air inlet/outlet pipe.
8. A pipe fitting for the quick connection of a stainless steel corrugated pipe as claimed in claim 1, characterized in that the outer walls of the connecting sleeve (2) and the pressing sleeve (3) are provided with hexagonal peripheral walls.
9. A pipe fitting for the quick connection of a stainless steel corrugated pipe as claimed in claim 1, further comprising an auxiliary snap ring (8), wherein the auxiliary snap ring (8) comprises a snap ring (8a), the projection of the snap ring (8a) in the axial direction is in the shape of a sector ring with a central angle larger than 180 degrees, and before installation, the snap ring (8a) is coaxial with the corrugated pipe and is installed between the connecting sleeve (2) and the pressing sleeve (3).
10. A corrugated stainless steel pipe fitting for quick connection as claimed in claim 9, wherein the auxiliary snap ring (8) further comprises a handle (8b), the handle (8b) is a flat strip extending radially outward from the outer wall of the snap ring (8a), the handle (8b) is symmetrical with respect to the symmetry plane of the snap ring (8a), and the outer surface of the handle (8b) is provided with a relief (8b 1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921557963.6U CN211259951U (en) | 2019-09-18 | 2019-09-18 | Pipe fitting for quick connection of stainless steel corrugated pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921557963.6U CN211259951U (en) | 2019-09-18 | 2019-09-18 | Pipe fitting for quick connection of stainless steel corrugated pipe |
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| Publication Number | Publication Date |
|---|---|
| CN211259951U true CN211259951U (en) | 2020-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921557963.6U Active CN211259951U (en) | 2019-09-18 | 2019-09-18 | Pipe fitting for quick connection of stainless steel corrugated pipe |
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| Country | Link |
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| CN (1) | CN211259951U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112743767A (en) * | 2020-12-30 | 2021-05-04 | 江阴鑫宝利金属制品有限公司 | Prefabricated formula cold core of high accuracy complicated curved surface booster turbine |
-
2019
- 2019-09-18 CN CN201921557963.6U patent/CN211259951U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112743767A (en) * | 2020-12-30 | 2021-05-04 | 江阴鑫宝利金属制品有限公司 | Prefabricated formula cold core of high accuracy complicated curved surface booster turbine |
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