CN215445500U

CN215445500U - Quick connector of pressure-relief valve

Info

Publication number: CN215445500U
Application number: CN202121436517.7U
Authority: CN
Inventors: 邱强生; 林根发
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-26
Filing date: 2021-06-26
Publication date: 2022-01-07
Anticipated expiration: 2031-06-26

Abstract

The utility model discloses a quick connector of a pressure-relief valve, which comprises a lock tube structure, a valve core structure and a lock catch structure, wherein the lock tube structure comprises a positioning seat and a connector main body, the lock catch structure is provided with a spring buckle seat, a pushing sleeve is positioned in an inner cavity of the spring buckle seat, the valve core structure comprises a valve core main body, the pushing sleeve, the spring buckle seat, the valve core main body and the positioning seat are assembled in the connector main body, the valve core main body can axially move between the spring buckle seat and the positioning seat, the valve core main body is in contact with the end part of the pushing sleeve and is provided with a pressure relief surface and a sealing surface, and the axial movement of the valve core main body enables the pushing sleeve to be inserted into the outer cylindrical wall of the valve core main body to switch between the pressure relief surface and the sealing surface so as to open and close the quick connector. The quick connector of the pressure-relief valve has the pressure-relief function, and can relieve the air pressure in the pipeline when the sub-body is disassembled, so that the sub-body can be conveniently pulled out.

Description

Quick connector of pressure-relief valve

Technical Field

The utility model relates to a pipeline connection technology, in particular to a quick connector of a pressure relief valve.

Background

The quick connector is a connector capable of realizing pipeline connection or disconnection without tools, and is mainly used for quickly installing liquid or gas pipelines. Generally, when the gas pipeline is in use, one end of the quick connector is connected with a terminal tool or a hose through a sub body, when the sub body needs to be pulled out, the valve is closed firstly, the pipeline at the end of the sub body is in a high-pressure state, the sub body is difficult to pull out, and great force is needed; the high pressure in the pipe at the moment of pulling out the daughter can push out the daughter, and the daughter is easy to fly and smash to surrounding people or objects, thereby causing potential safety hazard. The prior art quick coupling with a valve also has the problems of large volume and inconvenient use caused by the fact that the coupling is of a split structure and the valve is additionally arranged on the quick coupling.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a quick connector of a pressure-relief valve, which has the pressure-relief function, and can relieve the air pressure in a pipeline when a sub-body is disassembled, so that the sub-body can be conveniently pulled out; when in use, the valve core main body axially moves between the positioning seat and the elastic buckle seat, so that the position of the pushing sleeve is switched between the sealing surface and the pressure relief surface of the valve core main body after the pushing sleeve is inserted into the sub body, the functions of sealing, conducting and pressure relief of the internal pipeline and the external part of the sub body end are realized, and the use is convenient.

In order to solve the technical problems, the technical scheme provided by the utility model is as follows: the utility model provides a can unload pressure valve quick-operation joint, includes lock tubular construction, case structure and hasp structure, the lock tubular construction includes positioning seat and joint main part, the hasp structure has the bullet to detain the seat, and bullet detains a inner chamber location has the top and pushes away the sleeve, the case structure includes the case main part, top pushes away sleeve, bullet knot seat, case main part and positioning seat assemble inside the joint main part, but the case main part axial motion is buckled between seat and positioning seat in the bullet, and the case main part just is formed with pressure-relief face and sealed face with pushing away the telescopic tip contact of top, and the axial motion of case main part makes the top push away the cylinder outer wall that the sleeve inserted the case main part and switch between pressure-relief face and sealed face to open and close quick-operation joint.

According to the technical scheme, when the valve core main body moves axially, the inner cavity of the valve core main body is close to and away from the valve core, and the valve core performs extrusion sealing and releases the opening valve in the movement process of the valve core main body, so that the functions of opening the valve and closing the valve are realized; the pushing sleeve is used for connecting the daughter and is respectively in a state of opening the valve to release pressure and being detachable from the daughter and a state of inserting the daughter valve to open for working when the pushing sleeve is switched between the pressure relief surface and the sealing surface; the quick connector is opened and closed by releasing pressure of the valve core, and has the characteristics of convenience in use, safety and reliability.

Furthermore, the valve core structure comprises a valve core, a valve core seat, a valve core spring and a valve sealing piece, wherein the valve sealing piece is sleeved on the valve core, the valve core is connected with the valve core seat, the valve core seat is assembled inside the positioning seat, and the valve core spring is arranged between the valve core seat and the positioning seat. The valve core penetrates through the through hole of the valve core seat after being sleeved with the valve sealing element, and when the valve core main body extrudes the valve core seat, the valve core and the valve sealing element are extruded and sealed; when the valve core main body is far away from the valve core seat, the valve core spring jacks the valve core seat, so that the valve core and the valve sealing piece are separated from the valve core seat, and the valve is opened.

Furthermore, a plurality of axial protrusions extend outwards from the end face of the positioning seat, a plurality of notches corresponding to the axial protrusions are formed in the valve core seat along the circumferential direction of the valve core seat, and the axial protrusions are inserted into the notches of the valve core seat. Through the axial bulge and the notch cooperation of valve core seat for when the valve core seat assembly was adorned the positioning seat inside, can not produce radial rotation and influence sealed effect.

Furthermore, two ends of the valve core main body are respectively provided with a first main body inclined end face and a second main body inclined end face, the end face, contacting with the valve core main body, of the positioning seat is provided with a positioning seat inclined end face, the end face, contacting with the valve core main body, of the elastic buckling seat is provided with an elastic buckling seat inclined end face, and the two inclined end faces of the valve core main body are respectively matched with the positioning seat inclined end face and the elastic buckling seat inclined end face during rotation, so that the rotation motion of the valve core main body is converted into axial linear motion.

Furthermore, the locking structure comprises an elastic ring, a sub-body elastic buckle and a locking elastic buckle, wherein the end part of the elastic buckle seat is provided with an elastic ring groove, an elastic buckle hole and a locking elastic buckle hole, the sub-body elastic buckle and the locking elastic buckle are respectively positioned in the elastic buckle hole and the locking elastic buckle hole, the elastic ring is sleeved on the elastic ring groove and the sub-body elastic buckle, and the locking elastic buckle is clamped on the elastic ring. The daughter elastic buckle is used for being sleeved on a daughter inserted into the pushing sleeve and used for fixing the position of the daughter.

Furthermore, the hasp structure still detains the sleeve including the bullet of cover locating bullet knot seat tip, and the bullet is detained the sleeve suit and is being connected the tip of main part, is equipped with the through-hole on the bullet knot sleeve, connects and is equipped with spacing hole in the main part, the top that the locking bullet was detained passes spacing hole and extends the telescopic through-hole of bullet knot. The locking elastic buckle extends out of the through hole of the elastic buckle sleeve to play a role in locking the elastic buckle sleeve on the elastic buckle seat.

Furthermore, the outer circumference of the elastic buckle seat is sleeved with an elastic buckle pressing sleeve and a pull ring, the elastic buckle pressing sleeve is sleeved at the outer end of the sub-body elastic buckle, an axial opening is formed in the end of the elastic buckle pressing sleeve and is clamped on the locking elastic buckle, and the elastic buckle pressing sleeve is connected with the pull ring.

Furthermore, the end face of the elastic buckle pressing sleeve connected with the pull ring is connected with the bent first clamping hook and the bent second clamping hook through extending towards the outer side direction. The pull ring and the elastic buckle press the matching of the sleeve and are used for limiting the rotation angle of the valve core main body.

Further, a pushing spring is arranged between the pushing sleeve and the valve core main body, and the pushing sleeve is provided with a pushing sealing ring. The pushing spring is used for pushing the pushing sleeve out when the daughter elastic buckle loosens the daughter, so that the daughter can be conveniently taken out.

Furthermore, elastic buckle springs are arranged among the elastic buckle seat, the pull ring and the positioning seat. The elastic buckle spring is used for providing elastic force to reset the elastic buckle sleeve, so that the small-diameter end cover of the elastic buckle spring is arranged on the sub body elastic buckle to fix the stator body.

Furthermore, the valve core structure comprises a T-shaped buckle, a rotatable T-shaped buckle sleeve is sleeved outside the joint main body, a guide groove is formed in the side wall of the joint main body, the T-shaped buckle is connected with the T-shaped buckle sleeve and movably positioned in the guide groove, and the T-shaped buckle is buckled into an axial groove formed in the outer surface of the valve core main body. The T-shaped buckle moves in the guide groove of the joint main body and is used for driving the valve core main body to rotate.

Further, the valve core structure comprises a valve core rod, a valve core sheet, a valve core spring and a valve sealing piece, wherein one end of the valve core rod is connected with the valve core sheet, the other end of the valve core rod is provided with a steel ring groove and an opening steel ring, the opening steel ring is arranged in the steel ring groove, one end of the valve core spring is abutted to the opening steel ring, the other end of the valve core spring is abutted to the inner end face of the valve core main body, and the valve sealing piece is arranged between the valve core sheet and the outer end face of the valve core main body. The valve sealing piece is pressed on the outer end face of the valve core main body through the valve core piece, and the effect of sealing the valve core main body is achieved.

Furthermore, the joint main body is provided with a rotary guide hole, one end of the rotary guide hole is provided with an open valve limiting opening, the other end of the rotary guide hole is provided with a closed valve limiting opening, and an elastic part used for propping against the T-shaped buckle is arranged at the corresponding position of the open valve limiting opening. The T-shaped buckle is arranged in the valve opening limiting port, the valve is opened, the end of the sub body in the quick connector is in a sealed state with the outside, and the sub body is inserted and cannot be pulled out in the state; the T-shaped buckle in the valve sleeve is buckled in the valve closing limiting opening, the valve is closed, the sub body end in the quick connector is communicated with the outside, and the sub body can be inserted or pulled out in the state. The two different working states meet different working requirements, and the use is convenient; the sub-body can be prevented from being inserted and pulled out, and the use is safer.

Furthermore, the periphery of the elastic buckle seat is sleeved with an elastic buckle sleeve, and the elastic buckle sleeve is provided with a strip-shaped hole which corresponds to the rotary guide hole of the joint main body and is used for penetrating through the T-shaped buckle.

Furthermore, the outer side end face of the elastic buckle seat is provided with a positioning bulge, the end face of the joint main body is provided with a positioning hole, and when the elastic buckle seat is assembled in the joint main body, the positioning bulge is inserted into the positioning hole. When the positioning bulge is inserted into the positioning opening, the elastic buckle seat is fixedly connected with the joint main body and cannot rotate along with the valve core main body.

The beneficial effects obtained by the utility model are as follows: the pushing sleeve moves axially and is positioned at different positions of the pressure relief surface and the sealing surface, when the daughter needs to be pulled out, the pushing sleeve is communicated with the outside of the joint on the pressure relief surface to relieve pressure, and the daughter is pulled out safely and reliably; when the sub-body is installed, the pushing sleeve is positioned on the sealing surface, and the sub-body is sealed and not communicated with the outside of the joint after being inserted; when the valve is operated, the T-shaped buckle can be driven to move in the guide groove of the joint main body by rotating the T-shaped buckle sleeve, so that the valve core main body is driven to rotate, the rotating motion of the valve core main body is converted into axial linear motion through the inclined end face when the valve core main body rotates, and the valve core seat and the valve core are matched to realize the sealing closing and opening of the valve core main body through the motion of the valve core main body. The utility model has different working states to meet different working requirements and is convenient to use; and each working state has a limit position, thereby avoiding the misoperation of inserting and pulling out the sub-body and ensuring safer use.

Drawings

FIG. 1 is a schematic view of an exploded structure of the present invention;

FIG. 2 is a schematic view of the external structure of the present invention;

FIG. 3 is a cross-sectional view of the front view structure of the present invention;

FIG. 4 is a schematic structural view of the exterior of the joint body of the present invention;

FIG. 5 is a schematic illustration of an explosive structure according to the present invention;

FIG. 6 is a schematic view of a partial internal structure of the present invention;

FIG. 7 is an exploded view of FIG. 6;

FIG. 8 is a schematic view of the structure of the cartridge holder of the present invention;

FIG. 9 is a schematic view of the construction of the snapping sleeve of the present invention;

FIG. 10 is a schematic view of the ejector sleeve of the present invention;

FIG. 11 is a schematic view of a cutaway configuration of the present invention;

FIG. 12 is a schematic view of an assembly structure of the snap seat, the valve core body and the positioning seat of the present invention;

FIG. 13 is another angular schematic of FIG. 12;

FIG. 14 is a schematic structural view of a cartridge body;

FIG. 15 is another angular schematic view of the cartridge body;

FIG. 16 is a schematic view of the positioning socket;

FIG. 17 is a schematic view of the valve cartridge seat;

FIG. 18 is a schematic cross-sectional view of the sub-body inserted into the valve closed in the practice of the present invention;

FIG. 19 is a schematic sectional view of the sub-body inserted into the opened valve in the practice of the present invention;

FIG. 20 is a schematic view of the external structure of the sub-body inserted into the valve closed in the practice of the present invention;

FIG. 21 is a schematic view showing an external structure of the sub-body inserted into the opened valve in the practice of the present invention;

FIG. 22 is an exploded view of the second embodiment of the present invention;

FIG. 23 is a sectional view showing the internal structure of the second embodiment of the present invention;

FIG. 24 is an exploded view of a second embodiment of the present invention;

FIG. 25 is a schematic view of a second embodiment of a latch base of the present invention;

fig. 26 is a structural view of another angle of the latch holder according to the second embodiment of the present invention;

fig. 27 is a schematic structural view of a spool main body according to a second embodiment of the present invention;

FIG. 28 is a structural schematic view of another angle of the spool body of the second embodiment of the present invention;

fig. 29 is a schematic structural view of the positioning socket according to the second embodiment of the present invention;

fig. 30 is a schematic view of another angle structure of the positioning socket according to the second embodiment of the present invention;

FIG. 31 is an assembled structural view of a valve cartridge structure according to a second embodiment of the present invention;

FIG. 32 is a perspective view of a fitting body according to a second embodiment of the present invention;

FIG. 33 is a sectional view showing the external structure of the second embodiment of the present invention;

FIG. 34 is a schematic view showing the entire structure of the second embodiment of the present invention in FIG. 33;

FIG. 35 is a schematic view of the assembled structure of the second embodiment of the present invention shown in FIG. 33;

FIG. 36 is a schematic view of the second embodiment of the T-shaped buckle of FIG. 33 in a state of motion on the surface of the main body of the joint;

FIG. 37 is a schematic view of the internal assembly structure of the second embodiment of the present invention shown in FIG. 33;

FIG. 38 is a schematic cross-sectional view of a second embodiment of the utility model with a neutron inserted, valve closed, and pressure relieved;

FIG. 39 is a schematic structural view of the second embodiment of the present invention shown in FIG. 38;

FIG. 40 is a schematic view of the internal connection structure of the second embodiment of the present invention in FIG. 38;

FIG. 41 is a schematic view of the external connection structure of the second embodiment of the present invention in FIG. 38;

FIG. 42 is a schematic view of another internal connection configuration of the second embodiment of the present invention shown in FIG. 38;

FIG. 43 is a schematic sectional view showing the valve closed and the sub-body removed in accordance with the second embodiment of the present invention;

FIG. 44 is a schematic structural diagram illustrating the appearance of the second embodiment of the present invention in FIG. 43;

FIG. 45 is a schematic view of the connection structure of the second embodiment of the present invention in FIG. 43;

FIG. 46 is a schematic view of an external connection structure of the second embodiment of the present invention in FIG. 43;

fig. 47 is a schematic view of an internal connection structure of the second embodiment of the present invention in fig. 43.

Description of reference numerals: 10 a latch structure, 11 a latch seat, 111 a latch seat inclined end face, 112 an elastic ring groove, 113 a latch hole, 114 a latch spring, 115 a positioning protrusion, 12 a pushing sleeve, 121 a pushing spring, 122 a pushing seal ring, 123 a sealing gasket, 13 an elastic ring, 14 a body latch, 15 a locking latch, 151 a locking latch hole, 16 a latching sleeve, 161 a through hole, 17 a latching pressing sleeve, 171 an axial opening, 172 a first latch, 18 a pull ring, 181 a second latch, 19 a latching sleeve, 191 a bar-shaped hole, 20 a spool structure, 21 a spool body, 211 a relief surface, 212 a sealing surface, 213 a first body inclined end face, 214 a second body inclined end face, 215 an axial groove, 216 a spool seal ring, 22 a spool, 23 a spool seat, 231 a notch, 24 a spool spring, 25 a valve seal, 30 a spool structure, 31 a positioning seat, 311 an axial protrusion, 312 an inclined end face, 32 a joint body, 321-321 a guide groove, 322, 323, a positioning hole, 33-T-shaped buckles, 40 valve sleeves, 41-T-shaped buckle sleeves, 42-T-shaped retaining rings, 43 buckle sleeves, an A body, a B gas source connector, a 1C body sealing gasket, a 1D body sealing ring, a 1E pushing gasket, 221 valve core rods, 222 valve core pieces, 223 steel ring grooves and 224 steel rings with holes.

Detailed Description

The utility model is further described with reference to the following figures and detailed description.

The lock catch structure 10 with the valve pressure relief quick connector is connected with the lock pipe structure 30, the valve core structure 20 is located inside the lock pipe structure 30, the sub-body A is inserted into the lock catch structure 10 and is connected with the lock pipe structure in a sealing mode, and the air source connector B is connected with the lock pipe structure 30 in a sealing and rotatable mode. The gas enters from the gas source joint B, passes through the valve core structure 20 and flows out from the sub-body A. The locking structure 10 has a spring buckle seat 11 and a pushing sleeve 12, the spring buckle seat 11 is sleeved outside the pushing sleeve 12, the pushing sleeve 12 has an outer step, the spring buckle seat 11 has an inner step, the pushing sleeve 12 is sleeved into the spring buckle seat 11 from one end thereof, the outer step of the pushing sleeve 12 abuts against the inner step of the spring buckle seat 11, and the sub-body a is inserted into the pushing sleeve 12.

First embodiment

Referring to fig. 1 to 21, a quick connector of a press-detachable valve includes a lock tube structure 30, a valve core structure 20 and a lock catch structure 10, where the lock tube structure 30 includes a positioning seat 31 and a connector main body 32, the lock catch structure 10 has a snap seat 11, a push sleeve 12 is positioned in an inner cavity of the snap seat 11, the valve core structure 20 includes a valve core main body 21, the push sleeve 12, the snap seat 11, the valve core main body 21 and the positioning seat 31 are assembled inside the connector main body 32, the valve core main body 21 is axially movable between the snap seat 11 and the positioning seat 31, the valve core main body 21 is in contact with an end of the push sleeve 12 and is formed with a pressure relief surface 211 and a sealing surface 212, and the axial movement of the valve core main body 21 makes the push sleeve 12 be inserted into a cylindrical outer wall of the valve core main body 21 to switch between the pressure relief surface 211 and the sealing surface 212, so as to open and close the quick connector.

The valve core structure 20 includes a valve core 22, a valve core seat 23, a valve core spring 24 and a valve sealing member 25, the valve sealing member 25 is sleeved on the valve core 22, the valve core 22 is connected with the valve core seat 23, the valve core seat 23 is assembled inside the positioning seat 31, and the valve core spring 24 is disposed between the valve core seat 23 and the positioning seat 31.

A plurality of axial protrusions 311 extend outward from the end surface of the positioning seat 31, a plurality of notches 231 corresponding to the axial protrusions 311 are formed in the valve core seat 23 along the circumferential direction of the valve core seat, and the plurality of axial protrusions 311 are inserted into the notches 231 of the valve core seat 23.

The two ends of the valve core main body 21 are respectively provided with a first main body inclined end surface 213 and a second main body inclined end surface 214, the end surface of the positioning seat 31 contacting with the valve core main body 21 is provided with a positioning seat inclined end surface 312, the end surface of the elastic buckle seat 11 contacting with the valve core main body 21 is provided with an elastic buckle seat inclined end surface 111, and the two inclined end surfaces of the valve core main body 21 are respectively matched with the positioning seat inclined end surface 312 and the elastic buckle seat inclined end surface 111 during rotation, so that the rotation motion of the valve core main body 21 is converted into axial linear motion.

The locking structure 10 comprises an elastic ring 13, a daughter buckle 14 and a locking buckle 15, the end of the buckle base 11 is provided with an elastic ring groove 112, a buckle hole 113 and a locking buckle hole 151, the daughter buckle 14 and the locking buckle 15 are respectively positioned in the buckle hole 113 and the locking buckle hole 151, the elastic ring 13 is sleeved on the elastic ring groove 112 and the daughter buckle 14, and the locking buckle 15 is clamped on the elastic ring 13. When the sub-body A is inserted into the pushing sleeve 12, the sub-body snap 14 is snapped into the sub-body concave ring of the sub-body A to fix the sub-body A.

The latch structure 10 further includes a latch sleeve 16 sleeved on the end of the latch base 11, the latch sleeve 16 is sleeved on the end of the joint main body 32, a through hole 161 is formed in the latch sleeve 16, a limiting hole 322 is formed in the joint main body 32, and the top end of the locking latch 15 penetrates through the limiting hole 322 and extends out of the through hole 161 of the latch sleeve 16.

The outer circumference of the elastic buckle seat 11 is sleeved with an elastic buckle pressing sleeve 17 and a pull ring 18, the elastic buckle pressing sleeve 17 is sleeved at the outer end of the sub-elastic buckle 14, the end part of the elastic buckle pressing sleeve 17 is provided with an axial opening 171 which is clamped on the locking elastic buckle 15, and the elastic buckle pressing sleeve 17 is connected with the pull ring 18.

The end face of the latch pressing sleeve 17 connected to the tab 18 is connected to the first hook 172 and the second hook 181 extending and bent in the outward direction.

A pushing spring 121 is arranged between the pushing sleeve 12 and the valve core main body 21, and the pushing sleeve 12 is provided with a pushing sealing ring 122. The elastic buckle spring 114 is arranged between the elastic buckle seat 11, the pull ring 18 and the positioning seat 31.

The valve core structure 20 comprises a T-shaped buckle 33, a rotatable T-shaped buckle sleeve 41 is sleeved outside the joint main body 32, a guide groove 321 is formed in the side wall of the joint main body 32, the T-shaped buckle 33 is connected with the T-shaped buckle sleeve 41 and movably positioned in the guide groove 321, and the T-shaped buckle 33 is buckled in an axial groove 215 formed in the outer surface of the valve core main body 21.

The inside of the ejector sleeve 12 is provided with a gasket 123. The outer wall of the valve body 21 and the inner wall of the joint body 32 are sealed by a valve seal 216. The T-shaped buckle sleeve 41 is sleeved with a T-shaped buckle 42, and the T-shaped buckle 42 is sleeved at the outer end of the T-shaped buckle 33.

In the specific implementation of the present invention, the snap sleeve 16 is provided with a valve opening/closing mark, and the T-shaped snap sleeve 41 is provided with a corresponding arrow. When the valve is installed, the positioning seat 31, the valve core seat 23, the valve core 22, the valve core spring 24 and the valve seal 25 are assembled into the inner cavity of the joint main body 32, and one end of the joint main body 32 is connected with the air source joint B for providing an air source.

After the valve core main body 21 is provided with the valve core sealing ring 216, one end of the valve core main body is matched and assembled with the positioning seat 31 into the inner cavity of the joint main body 32. Installing a sealing gasket 123 in the pushing sleeve 12, then installing the pushing sleeve into the elastic buckling seat 11, arranging an elastic buckling spring 114 between the elastic buckling seat 11 and the positioning seat 31, arranging a pushing spring 121 between the pushing sleeve 12 and the valve core main body 21, and installing the elastic buckling seat 11 and the pushing sleeve 12 into the joint main body 32 and connecting the elastic buckling seat and the pushing sleeve 12 with the inclined end face at the other end of the valve core main body 21.

The snap sleeve 16 is mounted on the end of the joint body 32 where the snap seat 11 is provided, wherein the locking snap 15 extends outward from the limit hole 322 of the joint body 32 to be exposed outside the through hole 161 of the snap sleeve 16 to position the snap sleeve 16 on the joint body 32. Then, the T-shaped buckle sleeve 41 is installed, a guide groove 321 at one end of the T-shaped buckle 33 is buckled on the axial groove 215 of the valve core main body 21, the T-shaped buckle 33 further penetrates through the surface of the pull ring 18 to drive the pull ring 18 to rotate and connect and separate with the elastic buckle pressing sleeve 17, when the T-shaped buckle sleeve 41 is rotated, the T-shaped buckle 33 is driven to move in the guide groove 321 to drive the valve core main body 21 to rotate, and when the valve core main body 21 rotates, the valve core main body 21 is matched with the positioning seat inclined end surface 312 and the elastic buckle seat inclined end surface 111 through the first main body inclined end surface 213 and the second main body inclined end surface 214, so that the valve core main body 21 axially moves between the positioning seat 31 and the elastic buckle seat 11, and the valve core 22 closes and opens the valve. The T-shaped buckle sleeve 41 is sleeved with a T-shaped buckle 42 for preventing the T-shaped buckle 33 from running out.

Second embodiment

Referring to fig. 22 to 47, the main difference between the present embodiment and the first embodiment is that the valve core structure 20 includes a valve core rod 221, a valve core sheet 222, a valve core spring 24 and a valve seal 25, one end of the valve core rod 221 is connected to the valve core sheet 222, the other end is provided with a steel ring groove 223 and a steel ring with hole 224, the steel ring with hole 224 is provided in the steel ring groove 223, one end of the valve core spring 24 abuts against the steel ring with hole 224, the other end abuts against the inner end face of the valve core main body 21, and the valve seal 25 is provided between the valve core sheet 222 and the outer end face of the valve core main body 21. When the valve core main body 21 moves axially, the pushing gasket 1E abuts against the valve core rod 221 to push the valve core sheet 222 to press or release the outer end surface of the valve core main body 21, so as to open or close the valve core main body 21.

The joint body 32 is provided with a rotary guide hole 331, one end of the rotary guide hole 331 is provided with an open valve limit opening 332, the other end is provided with a closed valve limit opening 333, and an elastic member 34 for supporting the T-shaped buckle 33 is arranged at a position corresponding to the open valve limit opening 332.

The periphery of the elastic buckle seat 11 is sleeved with an elastic buckle sleeve 19, and the elastic buckle sleeve 19 is provided with a strip-shaped hole 191 which corresponds to the rotary guide hole 331 of the joint main body 32 and is used for passing through the T-shaped buckle 33.

The outer end face of the latch base 11 is provided with a positioning protrusion 115, the end face of the joint main body 32 is provided with a positioning hole 323, and when the latch base 11 is assembled in the joint main body 32, the positioning protrusion 115 is inserted into the positioning hole 323.

The end part of the positioning seat 31 for connecting the air source connector B is sleeved with a buckle sleeve 43, the buckle sleeve 43 is used for installing and fixing the air source connector B, and the air source connector B is rotatably connected with the positioning seat 31 through a connector ball 1B. A sub-body sealing gasket 1C and a sub-body sealing ring 1D are arranged in the pushing sleeve 12.

The valve core main body 21 is provided with an axial positioning slot 217 on the outside, and the valve sleeve 40 is arranged in the axial slot 215 through the T-shaped buckle 33 when rotating so as to drive the valve core main body 21 to rotate.

In summary, the actual samples of the present invention are prepared according to the description and the drawings, and after a plurality of usage tests, the effect of the usage tests proves that the present invention can achieve the expected purpose, and the practical value is undoubted. The above-mentioned embodiments are only for convenience of illustration and not intended to limit the utility model in any way, and those skilled in the art will be able to make equivalents of the features of the utility model without departing from the technical scope of the utility model.

Claims

1. The utility model provides a valve quick-operation joint can unload, includes lock tubular construction (30), case structure (20) and hasp structure (10), its characterized in that: the lock tube structure (30) comprises a positioning seat (31) and a joint main body (32), the lock catch structure (10) is provided with a spring catch seat (11), a pushing sleeve (12) is positioned in the inner cavity of the spring catch seat (11), the valve core structure (20) comprises a valve core main body (21), the pushing sleeve (12), the elastic buckling seat (11), the valve core main body (21) and the positioning seat (31) are assembled in the joint main body (32), the valve core main body (21) can axially move between the elastic buckle seat (11) and the positioning seat (31), the valve core main body (21) is in contact with the end of the pushing sleeve (12) and is provided with a pressure relief surface (211) and a sealing surface (212), and the pushing sleeve (12) is inserted into the cylindrical outer wall of the valve core main body (21) to switch between the pressure relief surface (211) and the sealing surface (212) through the axial movement of the valve core main body (21) so as to open and close the quick connector.

2. The quick connector of a depressible valve of claim 1, wherein: the valve core structure (20) comprises a valve core (22), a valve core seat (23), a valve core spring (24) and a valve sealing piece (25), wherein the valve sealing piece (25) is sleeved on the valve core (22), the valve core (22) is connected with the valve core seat (23), the valve core seat (23) is assembled inside the positioning seat (31), and the valve core spring (24) is arranged between the valve core seat (23) and the positioning seat (31).

3. The quick connector of a depressible valve of claim 2, wherein: the end face of the positioning seat (31) extends outwards to form a plurality of axial protrusions (311), the valve core seat (23) is provided with a plurality of notches (231) corresponding to the axial protrusions (311) along the circumferential direction of the valve core seat, and the axial protrusions (311) are inserted into the notches (231) of the valve core seat (23).

4. The quick connector of a depressible valve of claim 1, wherein: the rotary valve element is characterized in that a first main body inclined end face (213) and a second main body inclined end face (214) are respectively arranged at two ends of the valve element main body (21), a positioning seat inclined end face (312) is arranged at an end face, in contact with the valve element main body (21), of the positioning seat (31), an elastic buckle seat inclined end face (111) is arranged at an end face, in contact with the valve element main body (21), of the elastic buckle seat (11), and the two inclined end faces of the valve element main body (21) are respectively matched with the positioning seat inclined end face (312) and the elastic buckle seat inclined end face (111) during rotation, so that the rotary motion of the valve element main body (21) is converted into axial linear motion.

5. The quick connector of a depressible valve of claim 1, wherein: hasp structure (10) are detained (14) and are locked bullet knot (15) including elastic ring (13), daughter bullet, the tip that seat (11) was detained to the bullet is equipped with elastic ring recess (112), bullet knot hole (113) and locking bullet knot hole (151), daughter bullet is detained (14), locking bullet and is detained (15) and be located bullet knot hole (113), locking bullet respectively and detain hole (151), and elastic ring (13) cover is on elastic ring recess (112) and daughter bullet knot (14), and locking bullet is detained (15) pincers and is established on elastic ring (13).

6. The quick connector of a depressible valve of claim 5, wherein: hasp structure (10) are still detained sleeve (16) including the bullet of cover locating bullet knot seat (11) tip, and bullet knot sleeve (16) suit is equipped with through-hole (161) at the tip that connects main part (32) on bullet knot sleeve (16), connects and is equipped with spacing hole (322) on main part (32), the top that locking bullet detained (15) is passed spacing hole (322) and is extended through-hole (161) that bullet detained sleeve (16).

7. The quick connector of a depressible valve of claim 6, wherein: the outer periphery of the elastic buckle seat (11) is sleeved with an elastic buckle pressing sleeve (17) and a pull ring (18), the elastic buckle pressing sleeve (17) is sleeved at the outer end of the sub-body elastic buckle (14), an axial opening (171) is formed in the end portion of the elastic buckle pressing sleeve and clamped on the locking elastic buckle (15), and the elastic buckle pressing sleeve (17) is connected with the pull ring (18).

8. The quick connector of a depressible valve of claim 7, wherein: the end face of the elastic buckle pressing sleeve (17) connected with the pull ring (18) is connected with the first clamping hook (172) and the second clamping hook (181) which extend and bend towards the outer side.

9. The quick connector of a depressible valve of claim 1, wherein: a pushing spring (121) is arranged between the pushing sleeve (12) and the valve core main body (21), and a pushing sealing ring (122) is arranged on the pushing sleeve (12).

10. The quick connector of a depressible valve of claim 9, wherein: and elastic buckle springs (114) are arranged among the elastic buckle seat (11), the pull ring (18) and the positioning seat (31).

11. The quick connector of a depressible valve of claim 6, wherein: the valve core structure (20) comprises a T-shaped buckle (33), a rotatable T-shaped buckle sleeve (41) is sleeved outside the joint main body (32), a guide groove (321) is formed in the side wall of the joint main body (32), the T-shaped buckle (33) is connected with the T-shaped buckle sleeve (41) and movably positioned in the guide groove (321), and the T-shaped buckle (33) is buckled into an axial groove (215) formed in the outer surface of the valve core main body (21).

12. The quick connector of a depressible valve of claim 1, wherein: the valve core structure (20) comprises a valve core rod (221), a valve core sheet (222), a valve core spring (24) and a valve sealing piece (25), one end of the valve core rod (221) is connected with the valve core sheet (222), the other end of the valve core rod is provided with a steel ring groove (223) and a perforated steel ring (224), the perforated steel ring (224) is provided with the steel ring groove (223), one end of the valve core spring (24) is abutted to the perforated steel ring (224), the other end of the valve core spring is abutted to the inner end face of the valve core main body (21), and the valve sealing piece (25) is arranged between the outer end faces of the valve core sheet (222) and the valve core main body (21).

13. The quick connector of a depressible valve of claim 12, wherein: the connector comprises a connector body (32), and is characterized in that a rotary guide hole (331) is formed in the connector body (32), an open valve limiting opening (332) is formed in one end of the rotary guide hole (331), a closed valve limiting opening (333) is formed in the other end of the rotary guide hole (331), and an elastic piece (34) used for propping against a T-shaped buckle (33) is arranged at the corresponding position of the open valve limiting opening (332).

14. The quick connector of a depressible valve of claim 13, wherein: the periphery of the elastic buckle seat (11) is sleeved with an elastic buckle sleeve (19), and the elastic buckle sleeve (19) is provided with a strip-shaped hole (191) which corresponds to the rotary guide hole (331) of the joint main body (32) and is used for penetrating through the T-shaped buckle (33).

15. The quick connector of a depressible valve of claim 14, wherein: the outer side end face of the elastic buckle seat (11) is provided with a positioning protrusion (115), the end face of the joint main body (32) is provided with a positioning opening (323), and when the elastic buckle seat (11) is assembled in the joint main body (32), the positioning protrusion (115) is inserted into the positioning opening (323).