CN216143346U

CN216143346U - Valve core and valve quick joint

Info

Publication number: CN216143346U
Application number: CN202121436518.1U
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: 2022-03-29
Anticipated expiration: 2031-06-26

Abstract

The utility model discloses a valve core and a valve quick joint, wherein the valve core comprises a valve core seat, a valve sealing element and a connecting sealing element, the valve core seat is provided with an opening end and a closed end, the edge of the outer side of the closed end is provided with a plurality of axial bulges, the valve sealing element is fixed on the outer cylinder of the closed end, the outer cylinder of the inner side of the closed end is provided with a plurality of flow openings penetrating through the wall thickness, the sealing element is fixedly connected on the outer cylinder of the opening end, and the plurality of flow openings are positioned between the valve sealing element and the connecting sealing element. The valve quick connector comprises a lock catch structure and a connecting structure which are mutually connected in a sealing manner, and the valve core is arranged in the lock catch structure. The valve core provided by the utility model has few parts and is convenient to assemble; the opening state has large clearance, the flow of the fluid is large, and the working requirement of large flow is met. The valve quick connector using the valve core has few parts, simple structure, convenient assembly and large flow effect.

Description

Valve core and valve quick joint

Technical Field

The utility model relates to a quick connector for a pipeline, in particular to a valve core and a quick connector for a valve using the valve core.

Background

The quick connector is a connector which can realize the connection or disconnection of pipelines without tools and is used for quickly installing liquid or gas pipelines. The valve core structure of the existing quick connector has two problems, one is that the flow of fluid is relatively small, and certain working requirements of large flow cannot be met; secondly, the parts are many, and the equipment is time-consuming and laborious. The existing quick connector has the following three problems that firstly, fluid in a pipe leaks when the sub body and the quick connector are assembled and disassembled, and the use is inconvenient; secondly, the connection between the sub-body and the quick joint is a ball lock catch, the point contact is stressed and easily abraded, the service life is short, and potential safety hazards are easily caused after long-time use; thirdly, the parts are many, and the structure is complicated, and the equipment is wasted time and energy.

Therefore, there is a need to solve the above technical problems.

Disclosure of Invention

Aiming at the technical problems, the utility model provides the valve core which has fewer parts and is convenient to assemble; the opening state has large clearance, the flow of the fluid is large, and the working requirement of large flow is met. The quick valve joint with the valve core has the advantages of few parts, simple structure, convenience in assembly and high flow rate, and meanwhile, fluid in the pipe cannot leak when the quick valve joint and the sub-body are assembled and disassembled, so that the quick valve joint is convenient to use; the shape of the inner side of the quick connector and the connecting lock catch of the sub body is matched with the concave ring on the sub body, the quick connector and the connecting lock catch are in surface contact when stressed, the stress is better, the wear is resistant, and the service life of the product is longer.

In order to achieve the purpose, the technical scheme of the utility model is as follows:

the valve core comprises a valve core seat, a valve sealing element and a connecting sealing element, wherein the valve core seat is provided with an opening end and a closed end, the edge of the outer side of the closed end is provided with a plurality of axial protrusions, the outer cylinder of the closed end is fixed with the valve sealing element, the outer cylinder of the inner side of the closed end is provided with a plurality of flow openings penetrating through the wall thickness, the outer cylinder of the opening end is fixed with the connecting sealing element, and the flow openings are located between the valve sealing element and the connecting sealing element. The valve core comprises a valve core seat, a valve core sealing element and a connecting sealing element, so that the valve core is few in parts and convenient to assemble; fluid flows through the middle of the valve core seat through the flow port, the flow space is large, and the working requirement of large flow of the fluid is met.

Furthermore, the inner side of the opening end of the valve core seat is provided with a valve core inner step, and an inner sealing gasket is arranged on the valve core inner step. The sub-body is inserted into the valve core seat, and the end surface of the sub-body is sealed with the inner sealing gasket.

And an inner sealing ring is further fixed on the inner wall of the opening end of the valve core seat. The daughter inserts in the case seat, and the outer face of cylinder and the internal seal of daughter are sealed, and the terminal surface and the internal seal pad of daughter in addition are sealed, and dual seal structure guarantees the leakproofness that the daughter is connected.

A valve quick joint comprises a lock catch structure and a connecting structure which are hermetically connected with each other, wherein any valve core is arranged in the lock catch structure, and the valve core axially moves in the lock catch structure and the connecting structure; the sub-body is inserted into the valve core and is connected with the valve core in a sealing way; the valve sealing piece and the connecting sealing piece are in sealing fit with the inside of the lock catch structure, and a fluid circulation space is formed between the valve sealing piece and the inside of the connecting structure. The valve quick connector adopts the valve core, so that the valve quick connector has the advantages of few parts, simple structure, convenience in assembly and high flow rate effect.

The valve core seat is sleeved in the elastic buckle seat, the valve sealing element and the connecting sealing element are in sealing fit with the inner wall of the elastic buckle seat, the valve core seat is provided with an outer step, the elastic buckle seat is provided with an inner step, and the outer step of the valve core seat is pressed on the inner step of the elastic buckle seat;

the connecting structure comprises a connector main body, a main body inner step is arranged in the connector main body, the main body inner step is abutted to the end face of the axial protrusion of the valve core, and a fluid circulation space is formed between the valve sealing element and the inner wall of the connector main body.

The valve core axially moves between the inner step of the elastic buckle seat and the inner step of the main body of the joint main body, the connecting sealing piece is not separated from the elastic buckle seat all the time during movement, and the valve is opened after the valve sealing piece enters the joint main body; the valve is closed when the valve sealing element and the connecting sealing element are respectively positioned in the elastic buckle seat. When the valve is opened and closed, the valve core and the elastic buckle seat are always in sealing fit, and fluid leakage cannot occur.

The lock catch structure further comprises a joint sleeve, a plurality of sub-body elastic buckles, an elastic ring, a lock catch spring and a pushing spring;

the joint sleeve is sleeved outside the junction of the joint main body and the elastic buckle seat and can move axially, an inner boss is arranged on the inner wall of the joint sleeve close to the end of the elastic buckle seat, and the end of the inner boss of the joint sleeve is limited by an outer step of the elastic buckle seat;

the inner side of the sub body elastic buckle is provided with a radial bulge, and the outer side of the sub body elastic buckle is provided with an elastic buckle groove; the elastic buckle seat is provided with a plurality of elastic buckle holes and elastic ring grooves; the sub body elastic buckle is positioned in the elastic buckle hole, and the elastic ring is elastically buckled into the elastic buckle groove and the elastic ring groove;

the lock catch spring is sleeved outside the elastic buckle seat and is positioned between the inner boss of the joint sleeve and the end face of the joint main body in a pressing state;

the inner side of the joint main body is provided with a spring fixing step, and the pushing spring is positioned between the spring fixing step and the closed end of the valve core in a pressing state.

The daughter does not insert the hasp structure, under the effect that pushes away the spring, the outer step of valve core case is pressed on the interior step of bullet knot seat, and daughter bullet is buckled radially outwards and is pressed on the outer wall of valve core case, and the side of the telescopic interior boss of joint is pressed and is detained the side at daughter bullet and by spacing, and the telescopic other end of joint is withheld by the hasp spring.

The sub-body is inserted into the lock catch structure to drive the valve core to move inwards, the valve is opened after the valve sealing element of the valve core enters the joint main body, and the axial convex end face of the valve core is finally pressed on the inner step of the main body of the joint main body. The radial projection of the sub-body elastic buckle is buckled into the concave ring of the sub-body under the elastic force action of the elastic ring. At the moment, the side face of the daughter elastic buckle is separated from the inner boss of the joint sleeve, the joint sleeve moves outwards under the action of the buckle spring, the inner boss of the joint sleeve is pressed on the outer boss of the elastic buckle seat to be limited, the inner side of the inner boss is pressed on the outer portion of the daughter elastic buckle, and the daughter elastic buckle cannot move outwards in the radial direction. The sub-body is locked by the lock.

When the daughter is disassembled, the joint sleeve is axially moved in place in the direction of the joint main body by external force, a space for the daughter elastic buckle to move outwards in the radial direction is exposed, the daughter is pulled outwards, the pushing spring pushes the valve core to have elastic force for pushing the daughter outwards, the daughter elastic buckle moves outwards in the radial direction to separate from the concave ring of the plasma, and the daughter is pulled out.

Above-mentioned valve quick-operation joint's hasp structure is in the state that the daughter inserted and extracted, and quick-operation joint itself's stable in structure, the position between the part can not change, and the malfunction can not appear in self, guarantees the security in the use, avoids the phenomenon that the too big daughter of pressure popped out in the pipeline. The inside radial arch of daughter elastic buckle of hasp structure cooperates with the concave ring on the daughter, and face contact during the atress, and the atress is better stand wear and tear, and product life is longer.

Further, the outer side of the sub body elastic buckle is provided with an elastic buckle inclined plane, and the inner boss of the joint sleeve is provided with a boss inclined plane matched with the elastic buckle inclined plane. The elastic buckle inclined plane of the daughter elastic buckle is matched with the boss inclined plane of the boss in the joint sleeve, and the inclined plane structure is beneficial to axial movement of the joint sleeve and radial inward movement of the daughter elastic buckle in the process of buckling the daughter by the daughter elastic buckle.

Further the bullet knot seat has the external screw thread, the joint main part has the internal thread and is connected with the external screw thread cooperation of bullet knot seat. The threaded connection structure facilitates replacement of different joint bodies, such as a joint body of a hose pagoda joint, a joint body with a joint end being an internal thread or a joint body with a joint end being an external thread.

Further, the elastic ring is an elastic rubber ring or a spring ring. The elastic rubber ring or the spring ring is used as the elastic ring more conveniently, and the structure is simple.

Compared with the prior art, the utility model has the following technical advantages:

1. the valve core comprises a valve core seat and different sealing elements fixed on the valve core seat, so that the valve core has few parts and is convenient to assemble; fluid flows through the middle of the valve core seat through the flow port, so that the flow space is large, and the working requirement of large flow of the fluid is met;

2. the valve quick connector adopts the valve core, so that the valve quick connector has few parts, simple structure, convenient assembly and large flow effect;

3. the valve core of the valve quick connector is connected with a sealing element and does not always separate from the elastic buckle seat in the moving process, and the valve is opened after the sealing element of the valve enters the connector main body; the valve is closed when the valve sealing element and the connecting sealing element are respectively positioned in the elastic buckle seat; when the valve is in an opening and closing state, the valve core and the elastic buckle seat are in sealing fit all the time, fluid leakage cannot occur, and the valve is convenient to use;

4. the locking structure of the valve quick connector is in the state that the sub-body is inserted and pulled out, the quick connector is stable in structure, the positions of parts cannot change, misoperation cannot occur in the quick connector, safety in the use process is guaranteed, and the phenomenon that the sub-body is popped out due to overlarge pressure in a pipeline is avoided;

5. the inner radial bulge of the daughter elastic buckle of the valve quick connector lock catch structure is matched with the concave ring on the daughter, so that the valve quick connector lock catch structure is in surface contact with the daughter when stressed, is better in stress and wear resistance, and is longer in service life.

Drawings

FIG. 1 is a front cross-sectional view of an embodiment of a valve cartridge of the present invention;

FIG. 2 is a perspective view of the valve cartridge seat of FIG. 1;

FIG. 3 is an exploded view of FIG. 1;

FIG. 4 is a cross-sectional exploded view of the valve quick connector of the present invention;

FIG. 5 is a perspective assembly view of FIG. 4;

FIG. 6 is a front cross-sectional view of FIG. 5;

FIG. 7 is a front cross-sectional view of the insert sub-body of FIG. 6;

FIG. 8 is an exploded view of FIG. 5;

FIG. 9 is a perspective view of the latch base of FIG. 8;

FIG. 10 is a perspective view of the body clip and elastic ring of FIG. 8;

FIG. 11 is a front cross-sectional view of the adapter sleeve of FIG. 8;

FIG. 12 is a front cross-sectional view of the fitting body of FIG. 6 externally connected in a female thread configuration;

FIG. 13 is a front cross-sectional view of the fitting body of FIG. 6 externally connected as a male thread configuration;

fig. 14 is a front cross-sectional view of the external connection pagoda fitting of the fitting body of fig. 6.

Detailed Description

The utility model will be described in further detail below with reference to embodiments shown in the drawings.

In the embodiment of the valve core of the present invention, as shown in fig. 1, fig. 2 and fig. 3, the valve core 10 includes a valve core seat 11, a valve sealing member 12 and a connecting sealing member 13, the valve core seat 11 has an open end 111 and a closed end 112, an edge outside the closed end 112 has two axial protrusions 113 symmetrically arranged, and a fluid communication space is formed between the two axial protrusions 113. The valve seal 12 is fixed on the outer periphery of the closed end 112, two symmetrically arranged flow openings 114 penetrating the wall thickness are arranged on the outer periphery of the inner side of the closed end 112, the seal 13 is fixed on the outer periphery of the open end 111, and a plurality of flow openings 114 are positioned between the valve seal 12 and the seal 13. The valve core comprises a valve core seat, a valve core sealing element and a connecting sealing element, so that the valve core is few in parts and convenient to assemble; fluid enters from the flow space between the two axial protrusions and flows through the middle of the valve core seat through the flow port, the flow space is large, and the working requirement of large flow of the fluid is met.

As shown in fig. 1, the inner side of the open end 111 of the valve core seat 11 has a valve core inner step 115, and the valve core inner step 115 is provided with the inner seal 14. The sub-body A is inserted into the valve core seat 11, and the end surface of the sub-body A is sealed with the inner sealing gasket 14.

As shown in fig. 1, an inner seal ring 15 is fixed to the inner wall of the open end 111 of the valve plug seat 11. The sub-body A is inserted into the valve core seat 11, the outer cylindrical surface of the sub-body A is sealed with the inner sealing ring 15, and the end surface of the sub-body A is sealed with the inner sealing gasket 14, so that the double sealing structure ensures the sealing performance of the connection of the sub-bodies.

As shown in fig. 4 to 11, the embodiment of the quick coupling for a valve according to the present invention.

As shown in fig. 4, the quick coupling for a valve comprises a locking structure 30 and a connecting structure 20 which are hermetically connected with each other, wherein the valve core shown in fig. 1 is arranged inside the locking structure 30, and the valve core 10 axially moves inside the locking structure 30 and the connecting structure 20; the sub-body A is inserted into the valve core 10 and is connected with the valve core in a sealing way; the valve seal member 12 and the connecting seal member 13 are sealingly engaged with the inside of the latch structure 30, and the valve seal member 12 and the connecting structure 20 have a fluid communication space inside. The valve quick connector adopts the valve core, so that the valve quick connector has the advantages of few parts, simple structure, convenience in assembly and high flow rate effect.

As shown in fig. 7, the sub-body a is inserted into the valve quick connector, and the fluid enters from the fluid source connector B, passes through the valve core 10 and flows out from the sub-body a.

As shown in fig. 4 and 6, the locking structure 30 includes a snap seat 31, the valve seat 11 is sleeved in the snap seat 31, the valve sealing member 12 and the connecting sealing member 13 are in sealing fit with an inner wall of the snap seat 31, the valve seat 11 has an outer step, the snap seat 31 has an inner step, and the outer step of the valve seat 11 is pressed on the inner step of the snap seat 31.

As shown in fig. 4, 6 and 7, the connection structure 20 includes a joint main body 21, the joint main body 21 has a main body inner step 211 therein, the main body inner step 211 abuts against an end surface of the axial protrusion 113 of the valve body 10, and a fluid flow space is provided between the valve seal 12 and an inner wall of the joint main body 21.

As shown in fig. 4 and 8, the locking structure 30 further includes a joint sleeve 32, three sub-body latches 33, an elastic ring 34, a locking spring 35 and a pushing spring 36, wherein the elastic ring 34 may be an elastic rubber ring or a spring ring.

As shown in fig. 5 and 6, the joint sleeve 32 is fitted around the joint between the joint main body 21 and the snap seat 31 and is axially movable. As shown in fig. 7 and 11, the inner wall of the joint sleeve 32 near the end of the snap seat 31 has an inner boss 321, and the end of the inner boss 321 of the joint sleeve 32 is limited by the outer step of the snap seat 31.

As shown in fig. 10, the sub-body latch 33 has a radial protrusion 331 at the inner side and a latch recess 332 at the outer side. As shown in fig. 9, the latch seat 31 is provided with three latch holes 311 and elastic ring grooves 312 which are uniformly distributed; the sub-body latch 33 is positioned in the latch hole 311 and the elastic ring 34 is elastically latched into the latch groove 332 and the elastic ring groove 312.

As shown in fig. 6, the locking spring 35 is sleeved outside the elastic locking seat 31, and the locking spring 35 is located between the inner boss 321 of the joint sleeve 32 and the end surface of the joint main body 21 in a compressed state.

As shown in fig. 6, the joint main body 21 has a spring fixing step 212 on the inner side, and the urging spring 36 is located between the spring fixing step 212 and the closed end 112 of the valve element 10 in a pressed state.

As shown in fig. 6, the sub-body a is not inserted into the locking structure 30, and has the following features:

under the action of the pushing spring 36, the outer step of the valve core seat 11 is pressed on the inner step of the elastic buckle seat 31;

the sub-body snap 33 springs radially outward and presses against the outer wall of the valve core seat 11;

the side of the inner boss 321 of the adapter sleeve 32 is pressed against the side of the sub-body latch 33 to be restrained, and the other end of the adapter sleeve 32 is held by the latch spring 35.

As shown in fig. 7, the sub-body a is inserted into the locking structure 30, and has the following features:

the sub-body A is inserted to drive the valve core 10 to move inwards, the valve is opened after the valve sealing element 12 of the valve core 10 enters the joint main body 21, and the end face of the axial bulge 113 of the valve core 10 is finally pressed on the main body inner step 211 of the joint main body 21;

the radial protrusion 331 of the sub-body snap 33 is snapped into the concave ring A1 of the sub-body A by the elastic force of the elastic ring 34;

the sub body elastic buckle 33 is separated from the inner boss 321 of the joint sleeve 32 at the side, the joint sleeve 32 moves outwards under the action of the locking spring 35, the inner boss 321 of the joint sleeve 32 is pressed on the outer boss of the elastic buckle seat 31 to be limited, the inner side of the inner boss 321 is pressed on the outer part of the sub body elastic buckle 33, and the sub body elastic buckle 33 cannot move outwards in the radial direction. The sub-body a is locked.

When the daughter A is detached, the connector sleeve 32 is axially moved to the position in the direction of the connector main body 21 by external force, the space for radially moving the daughter snap 33 outwards is exposed, the daughter A is pulled outwards, the pushing spring 36 pushes the valve core 10 to have the elastic force for pushing the daughter A outwards, the daughter snap 33 radially moves outwards to remove the concave ring A1 of the plasma A, and the daughter A is pulled out.

This valve quick-operation joint's hasp structure is in the daughter state of inserting and extracting, and quick-operation joint itself stable in structure, the position between the part can not change, and the malfunction can not appear in self, guarantees the security in the use, avoids the phenomenon that the too big daughter of pressure popped out in the pipeline. The inside radial arch of daughter elastic buckle of hasp structure cooperates with the concave ring on the daughter, and face contact during the atress, and the atress is better stand wear and tear, and product life is longer.

As shown in fig. 10, the sub-body latch 33 is provided at the outer side thereof with a latch slant 333. As shown in fig. 11, the inner boss 321 of the joint sleeve 32 is provided with a boss slope 322 that mates with the snap slope 333. As shown in fig. 6, the snap-lock slant surface 333 of the sub-body snap-lock 33 is engaged with the boss slant surface 322 of the boss 321 of the sub-body sleeve 32, and the slant surface structure facilitates smooth axial movement of the sub-body snap-lock into the sub-body and radial inward movement of the sub-body snap-lock.

As shown in fig. 6 and 8, the snap seat 31 has an external thread, and the joint body 21 has an internal thread to be engaged with the external thread of the snap seat 31. The connector main body 21 and the snap seat 31 are in sealing fit through the main body O-ring 22. The screw connection form facilitates the replacement of different connector bodies, such as a hose pagoda connector in which the connector body is integrated with the fluid source connector in fig. 6, the connector body with an internal screw thread at the connector end in fig. 12, the connector body with an external screw thread at the connector end in fig. 13, or the connector end of the connector body in fig. 14 is connected by a connecting ball.

In summary, the present invention, as shown in the specification and the drawings, is a practical sample, and after a plurality of use tests, the test results prove that the utility model can achieve the expected purpose, and the practicability is needless to say. The above-mentioned embodiments are merely provided for convenience of illustration of the present invention and are not intended to be limiting in form; those skilled in the art should understand that they can easily make various changes and modifications to the disclosed embodiments without departing from the scope of the present invention.

Claims

1. A valve cartridge, characterized by: the valve core seat is provided with an opening end and a closed end, the edge of the outer side of the closed end is provided with a plurality of axial protrusions, the valve sealing element is fixed on the outer cylinder of the closed end, the outer cylinder of the inner side of the closed end is provided with a plurality of flow openings penetrating through the wall thickness, the connecting sealing element is fixed on the outer cylinder of the opening end, and the flow openings are located between the valve sealing element and the connecting sealing element.

2. The valve cartridge according to claim 1, wherein the inner side of the open end of the valve cartridge seat has a valve cartridge inner step, and the valve cartridge inner step is provided with an inner gasket.

3. The valve cartridge of claim 2, wherein an inner seal ring is secured to an inner wall of the open end of the valve cartridge housing.

4. A valve quick-operation joint which characterized in that: the valve core comprises a lock catch structure and a connecting structure which are hermetically connected with each other, wherein the valve core of any one of claims 1 to 3 is arranged in the lock catch structure, and the valve core axially moves in the lock catch structure and the connecting structure; the sub-body is inserted into the valve core and is connected with the valve core in a sealing way; the valve sealing piece and the connecting sealing piece are in sealing fit with the inside of the lock catch structure, and a fluid circulation space is formed between the valve sealing piece and the inside of the connecting structure.

5. The quick valve coupling of claim 4, wherein the latch structure includes a snap seat, the valve plug seat is nested in the snap seat, the valve seal and the connecting seal are in sealing engagement with an inner wall of the snap seat, the valve plug seat has an outer step, the snap seat has an inner step, and the outer step of the valve plug seat is pressed against the inner step of the snap seat;

6. The valve quick connector of claim 5, wherein said latch structure further comprises a connector sleeve, a plurality of sub-body snaps, an elastic ring, a latch spring, and a pusher spring;

7. The quick valve connector of claim 6 wherein said sub-body snap-fastener is provided with a snap-fastener bevel on the outside and said connector sleeve inner boss is provided with a boss bevel mating with said snap-fastener bevel.

8. The valve quick connector of claim 5 wherein said snap seat has external threads and said connector body has internal threads for mating engagement with said snap seat external threads.

9. The valve quick connector of claim 6 wherein said resilient ring is an elastomeric rubber ring or a spring ring.