Tee bend quick detach connects
Technical Field
The utility model relates to the field of quick-release joints, in particular to a three-way quick-release joint.
Background
The cutting sleeve type quick-release joint is a sealing pipe joint suitable for non-corrosive or corrosive media such as oil, water, gas and the like, has the characteristics of flexible specification requirements of matched aluminum plastic pipes, firm connection, good sealing performance and the like after being connected with a pipeline, and is widely applied to systems such as oil refining, chemical engineering, light industry, textile, national defense, metallurgy, aviation, ships and the like; it is also suitable for hydraulic transmission pipelines of various mechanical engineering, machine tool equipment and the like.
The existing ferrule type pipe joint consists of three parts: the connector body, cutting ferrule, nut. When the cutting sleeve and the nut are sleeved on the steel pipe and inserted into the joint body, and the nut is screwed, the outer side surface of the front end of the cutting sleeve is attached to the conical surface of the joint body to form sealing; however, when the clamping sleeve with the structure is used in a high-pressure environment, the sealing performance is insufficient due to the limited contact area of the sealing surface, and the leakage condition is easy to occur.
Therefore, how to solve the defects of the prior art is a subject of the present invention.
Disclosure of Invention
In order to solve the problems, the utility model discloses a tee joint quick-release connector.
In order to achieve the above purpose, the utility model provides the following technical scheme: a tee joint quick-release connector comprises a tee joint body, a clamping sleeve and a nut, wherein the left end, the right end and the top end of the tee joint body are communicated with a threaded connecting pipe, the nut is used for being connected and matched with the threaded connecting pipe, the clamping sleeve is in a conical pipe shape, one end of the clamping sleeve is provided with a circle of matching surface, the other end of the clamping sleeve is provided with a circle of pressing surface, the outer diameter of the clamping sleeve is gradually increased from the matching surface to the pressing surface, a plurality of annular caulking grooves are formed in the matching surface along the circumferential direction of the matching surface, the annular caulking grooves are concentrically arranged from inside to outside, an elastic cushion ring is sleeved on the outer wall surface of the clamping sleeve, and the elastic cushion ring is arranged close to the pressing surface;
the inner cavity of the threaded connecting pipe is provided with a conical groove matched with the clamping sleeve corresponding to the clamping sleeve, the groove bottom surface of the conical groove is a sealing ring surface in contact fit with the abutting surface, and a plurality of convex rings in embedded fit with the annular caulking grooves are arranged on the sealing ring surface in a protruding mode along the circumferential direction of the sealing ring surface;
when the clamping sleeve is connected and matched, the clamping sleeve is pressed into the conical groove, the bulge ring is pressed into the annular caulking groove, and the outer wall surface of the clamping sleeve is pressed with the inner wall surface of the conical groove.
In the above scheme, the annular caulking grooves are three, the depth of the annular caulking groove in the middle position of the three is larger than the depth of the other two, the protruding rings are also three, and the length of the protruding rings in the middle position of the three is consistent with the depth of the deepest annular caulking groove in the three annular caulking grooves.
In the scheme, the cross section of the annular caulking groove is in a conical shape, and the cross section of the protruding ring is in a conical shape matched with the annular caulking groove.
In the above scheme, a circle of clamping groove matched with the elastic backing ring is arranged on the inner wall surface of the conical groove corresponding to the elastic backing ring.
In the scheme, the bulge ring and the tapered groove are in interference fit.
Compared with the prior art, the utility model has the following advantages: the clamping sleeve is provided with a matching surface, a plurality of annular caulking grooves are formed in the matching surface, the threaded connecting pipe of the tee joint body is internally provided with a raised ring matched with the annular caulking grooves, the clamping sleeve is pressed into the tapered groove when in matching connection, the raised ring is pressed into the annular caulking grooves, and the outer wall surface of the clamping sleeve is tightly pressed with the inner wall surface of the tapered groove; the plurality of mutually clamped convex rings and the annular caulking grooves form a plurality of sealing surfaces, so that the sealing contact area of the convex rings and the annular caulking grooves is greatly increased, the sealing performance of the convex rings and the annular caulking grooves is further improved, and the convex rings and the annular caulking grooves are more suitable for being used in a high-pressure environment.
Drawings
FIG. 1 is an exploded view of the present invention;
FIG. 2 is a cross-sectional view of the ferrule;
FIG. 3 is a partial cross-sectional view of a threaded connection;
FIG. 4 is a schematic view of the connection and cooperation between the ferrule and the threaded connection tube;
FIG. 5 is an enlarged view of a portion A of FIG. 4;
fig. 6 is a schematic diagram of the threaded connection tube, the ferrule and the nut.
List of reference numerals: the three-way joint comprises a 100 three-way joint body, a 101 threaded connecting pipe, a 111 conical groove, a 112 sealing ring surface, a 113 convex ring, a 114 clamping groove, a 200 clamping sleeve, a 201 matching surface, a 202 abutting surface, a 211 annular embedding groove, a 212 elastic cushion ring and a 300 nut.
Detailed Description
The present invention will be further illustrated below with reference to specific embodiments, which are to be understood as merely illustrative and not limitative of the scope of the present invention. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
Example (b): referring to fig. 1-6, a three-way quick-release connector comprises a three-way connector body 100, a ferrule 200 and a nut 300, wherein the left end, the right end and the top end of the three-way connector body 100 are communicated with a threaded connecting pipe 101, the nut 300 is used for connecting and matching with the threaded connecting pipe 101, the ferrule 200 is in a conical tube shape, one end of the ferrule 200 is provided with a circle of matching surface 201, the other end of the ferrule 200 is provided with a circle of pressing surface 202, the outer diameter of the ferrule 200 gradually increases from the matching surface 201 to the pressing surface 202, a plurality of annular caulking grooves 211 are formed in the matching surface 201 along the circumferential direction of the matching surface, and the annular caulking grooves 211 are concentrically arranged from inside to outside;
the whole cutting sleeve 200 is made of red copper with relatively soft texture, can deform to a certain extent when being extruded and is better attached to the conical groove 111 in the threaded connecting pipe 101;
an elastic cushion ring 212 is sleeved on the outer wall surface of the cutting sleeve 200, and the elastic cushion ring 212 is arranged close to the abutting surface 202; the elastic backing ring 212 is made of polytetrafluoroethylene ring, and when the elastic backing ring is connected and matched, the elastic backing ring is pressed against the inner wall surface of the conical groove 111 in the threaded connecting pipe 101 to form another seal, and the elastic backing ring is arranged close to the pressing surface 202, so that a certain seal can be formed at the threaded connection part of the nut 300 and the threaded connecting pipe 101;
the inner wall surface of the tapered groove 111 is further provided with a circle of clamping grooves 114 corresponding to the elastic backing ring 212, and the elastic backing ring 212 can be clamped in the clamping grooves 114 during assembly, so that dislocation of the elastic backing ring is avoided.
The inner cavity of the threaded connection pipe 101 is provided with a conical groove 111 corresponding to the ferrule 200 and matched with the ferrule, the groove bottom surface of the conical groove 111 is a sealing ring surface 112 contacted and matched with the abutting surface 202, and a plurality of convex rings 113 embedded and matched with the annular embedding grooves 211 are arranged on the sealing ring surface 112 in an outward protruding mode along the circumferential direction;
when in connection and matching, the cutting sleeve 200 is pressed into the tapered groove 111, the bulge loop 113 is pressed into the annular caulking groove 211, and the outer wall surface of the cutting sleeve 200 is pressed with the inner wall surface of the tapered groove 111; the plurality of mutually clamped convex rings 113 and the annular caulking grooves 211 form a plurality of sealing surfaces, so that the sealing contact area of the convex rings and the annular caulking grooves is greatly increased, and the sealing performance of the convex rings and the annular caulking grooves is further improved, so that the convex rings and the annular caulking grooves are more suitable for being used in a high-pressure environment.
The annular caulking grooves 211 are provided with three annular caulking grooves 211, the depth of the annular caulking groove 211 positioned in the middle of the three annular caulking grooves is larger than that of the other two annular caulking grooves, the number of the convex rings 113 is also three, and the length of the convex ring 113 positioned in the middle of the three annular caulking grooves is consistent with that of the deepest annular caulking groove 211 in the three annular caulking grooves 211 (not shown in the drawing); that is, the protruding distance of the protruding ring 113 at the middle position is relatively long, so that the annular embedding groove 211 can be firstly aligned with the protruding ring 113 with the middle position to be assembled to perform the preliminary positioning function when the connection is matched.
The cross section of the annular caulking groove 211 is in a conical shape, the cross section of the raised ring 113 is in a conical shape matched with the annular caulking groove 211, and when the raised ring 113 and the annular caulking groove 211 are connected and matched, the raised ring 113 is pressed tightly against the inner wall surface of the annular caulking groove 211 along with the deepening of the raised ring, and the sealing performance is better.
The raised ring 113 and the tapered groove 111 are in interference fit, and the sealing performance of the raised ring 113 and the tapered groove is relatively better.
The technical means disclosed in the utility model scheme are not limited to the technical means disclosed in the above embodiments, but also include the technical scheme formed by any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and such improvements and modifications are also considered to be within the scope of the present invention.