CN221145690U

CN221145690U - Water-gas connector

Info

Publication number: CN221145690U
Application number: CN202323228514.6U
Authority: CN
Inventors: 张伟; 谭膳和; 王刘傲; 饶克超; 黄日兴
Original assignee: Guangxi Lituo Intelligent Technology Co ltd
Current assignee: Guangxi Lituo Intelligent Technology Co ltd
Priority date: 2023-11-29
Filing date: 2023-11-29
Publication date: 2024-06-14
Anticipated expiration: 2033-11-29

Abstract

The utility model discloses a water-gas connector, and belongs to the technical field of connectors. The water-gas connector comprises a male head, a female head and an end face sealing structure, wherein the male head comprises a first shell, a valve core, a first spring and a first sealing ring; the female head comprises a second shell, a push rod, a valve ring, a second spring, a second sealing ring, a third sealing ring and a fourth sealing ring; the end face sealing structure is annular and is arranged on the end face of the first plug end and the outer end face of the valve ring; when the male head and the female head are inserted in place, the first insertion end face abuts against the end face of the valve ring, the outer end face of the ejector rod abuts against the outer end face of the valve core, and the second flow channel is communicated with the first flow channel. The connector solves the technical problems that after the traditional connector is in butt joint, the connector only has a single shaft surface sealing ring, and the single shaft surface sealing ring is damaged to easily cause water and gas leakage.

Description

Water-gas connector

Technical Field

The utility model relates to the technical field of connectors, in particular to a water-gas connector.

Background

Water and gas quick connector for industrial and military fields. The fast end surface cleaning, instant water spraying and air leakage prevention, leakage after butt joint and higher plugging life are required. The common water gas channel connection structure form capable of being quickly disassembled and assembled mainly comprises a male end and a female end; the male end mainly comprises: the valve comprises a shell, a valve core, an axial surface sealing ring, a pressure spring and a base. The female end mainly comprises: the valve comprises a shell, a valve core, a valve ring, an axial surface sealing ring, a pressure spring and a base. The structure has the following defects: 1. the end face sealing can not be carried out, namely, the leakage can occur at the moment of the butt joint process under the condition that water and gas exist in the pipeline, and the clean sealing can not be carried out. 2. The sealing of secondary antiseep is not available, namely, the situation of water vapor leakage can occur after the sealing ring of the shaft surface at one butt joint position of the female end connector is damaged after the butt joint is finished. 3. The female end connector has no dirt-proof self-cleaning function, namely the condition that the female end valve ring cannot rebound after a period of use can occur.

One of the patent publications CN 219035889U discloses a plug for enhancing the leakage prevention, comprising a male head and a female head; the first sealing head is clamped between the first sealing cavity and the first sealing cavity through a first sealing ring; a second sealing ring is clamped between the female outer sleeve and the female valve core; the third sealing ring is clamped between the female valve core and the second sealing head; the first sealing rings are matched to form two front-back spaced arrangement, the second sealing rings are arranged to form two front-back spaced arrangement, and the third sealing rings are arranged to form two front-back spaced arrangement; when the contact surface of the sliding sleeve and the female valve core passes through the second sealing ring and the third sealing ring, the contact surface is always kept in a sealed state; therefore, the leakage risk caused by fluctuation and change of the compression ratio of the sealing ring and the fact that the inner sealing ring and the outer sealing ring are not on the same plane in the plugging process is eliminated, the tightness of the male head can be further increased by the two arranged first sealing rings, and the leakage risk is further reduced. According to the scheme, when the female head and the male head are in a butt joint conduction state, only two layers of second sealing rings are arranged on the inner wall of the outer sleeve of the female head and serve as sealing devices, the second sealing rings are shaft face sealing rings, the relative movement distance between the female head and the male head is long in the butt joint process, the second sealing rings are more rubbed, and therefore the shaft face sealing rings are most easily damaged, and the condition of water vapor leakage is caused. Accordingly, there is a need for further improvements over existing connector structures.

Disclosure of Invention

The utility model aims to solve the problems that only a single axial surface sealing ring exists in a connector after the traditional connector is in butt joint, and the single axial surface sealing ring is damaged to easily cause water and gas leakage.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

The water-gas connector comprises a male head, a female head and an end face sealing structure, wherein the male head comprises a first shell, a valve core, a first spring and a first sealing ring; the first shell is provided with a first penetrating cavity, one end of the first penetrating cavity is provided with a first inserting end, the other end of the first penetrating cavity is provided with a first connecting end, the valve core is provided with a first flow passage, the valve core is arranged in the first penetrating cavity in a sliding manner, and the first penetrating cavity can be communicated through the first flow passage; the valve core is propped against the first plug-in end through the first spring and can be matched with a first sealing ring to seal the first plug-in end; the female head comprises a second shell, a push rod, a valve ring, a second spring, a second sealing ring, a third sealing ring and a fourth sealing ring; the second shell is provided with a second penetrating cavity, one end of the second penetrating cavity is provided with a second inserting end, and the other end of the second penetrating cavity is provided with a second connecting end; the ejector rod is coaxially and fixedly arranged at the middle shaft of the second plug-in end, the valve ring is slidably sleeved on the inner wall of the second plug-in end, a second flow passage is arranged on the valve ring, and the second penetrating cavity can be communicated through the second flow passage; the valve ring is propped against the end part of the second plug end through the second spring, the second sealing ring and the third sealing ring are alternately arranged on the inner wall of the second plug end, the second sealing ring can be in sealing connection with the outer wall of the first plug end, and the third sealing ring can seal a gap between the inner wall of the second plug end and the outer wall of the valve ring; the outer end of the ejector rod is provided with a sealing end, and the fourth sealing ring can seal a gap between the sealing end and the inner wall of the valve ring; the end face sealing structure is annular and is arranged on the end face of the first plug end and the outer end face of the valve ring; when the male head and the female head are inserted in place, the first insertion end face abuts against the end face of the valve ring, the outer end face of the ejector rod abuts against the outer end face of the valve core, and the second flow channel is communicated with the first flow channel.

Further, the end face sealing structure comprises an annular rubber ring and an annular raised line, the annular rubber ring is arranged on the outer end face of the valve ring, and the annular raised line is arranged on the end face of the first plug-in end.

Further, the contact part of the annular rubber ring and the annular raised strips is provided with annular depressions, and the annular depressions are matched with the outlines of the annular raised strips.

Further, an annular pouring groove is formed in the outer end face of the valve ring, and the annular rubber ring is formed on the valve ring by adopting a rubber injection molding process.

Further, one end of the first spring is sleeved on the first shell, the other end of the first spring is sleeved on the valve core, a branch flow passage is arranged on the valve core, one end of the branch flow passage is communicated with the first flow passage, and the other end of the branch flow passage is located in a cylindrical space surrounded by the first spring.

Further, one end of the second spring sleeve is sleeved on the second shell, the other end of the second spring sleeve abuts against the valve ring, and the second fluid passage opening is located in the second spring.

Further, the female head further comprises a brush ring, the brush ring is sleeved on the inner wall of the second housing, the brush ring is closer to the second connecting end than the third sealing ring, and the inner wall of the brush ring is connected with the outer peripheral wall of the valve ring.

By adopting the technical scheme, the utility model has the beneficial effects that:

1. The utility model realizes the end face seal when the male head and the female head of the connector are plugged and unplugged by adopting the arrangement of a plurality of sealing rings; when the male head and the female head are plugged in place for communication, the first plug end face abuts against the end face of the valve ring, the sealing of the sealing end of the valve ring and the ejector rod is relieved, the outer end face of the ejector rod abuts against the outer end face of the valve core, the sealing of the valve core and the first shell is relieved, and the second flow channel and the first flow channel are mutually communicated to achieve the connection effect of the connector. In the communication state, the end face sealing structure realizes a first-stage sealing effect, a second sealing ring between the first shell and the second shell realizes a second-stage sealing effect, and the leakage probability of the whole connector can be reduced through the two-stage sealing effect; further, the end face sealing structure is used in the plug-in process of the male connector and the female connector, friction is small, the end face sealing structure is not easy to damage, and the sealing effect of the communication state of the connector is further improved. The connector solves the technical problems that after the traditional connector is in butt joint, the connector only has a single shaft surface sealing ring, and the single shaft surface sealing ring is damaged to easily cause water and gas leakage.

2. According to the end face sealing structure, the annular rubber ring and the annular raised strips are adopted to form annular concave parts in a matched mode, so that the sealing effect is better; by adopting the mode of glue injection molding, the annular rubber ring is not easy to shrink and is not easy to deviate from the valve ring, and the reliability of the connector is further improved.

3. According to the utility model, the branch flow passage on the valve core is communicated with the first flow passage, fluid can be introduced to continuously wash the first spring, the second spring faces the second flow passage, the fluid can continuously wash the second spring, impurities in the fluid are not easy to accumulate at the first spring and the second spring through the washing action, the rebound effect of the first spring and the second spring is prevented from being ensured, and the reliability is further improved.

4. The female head is also provided with the brush ring, so that impurities can be reduced from entering a gap between the outer peripheral wall of the valve ring and the inner wall of the second housing by the brush ring, and the valve ring is prevented from being blocked; meanwhile, the brush ring can relatively move with the peripheral wall of the valve ring to brush the peripheral wall of the valve ring, dirt on the peripheral wall of the valve ring is removed, the smoothness of the valve ring movement is determined, the possibility of blocking is reduced, and the reliability is improved.

Drawings

FIG. 1 is a cross-sectional view of a male plug-in female plug of the present utility model;

FIG. 2 is a cross-sectional view of the male and female of the present utility model;

Fig. 3 is a three-dimensional cut-away structural view of the male head of the present utility model.

FIG. 4 is a three-dimensional cutaway view of the female head of the present utility model.

In the drawing, a 1-male head, a 2-female head, a 3-end face sealing structure, a 11-first shell, a 12-valve core, a 13-first spring, a 14-first sealing ring, a 15-first plug end, a 16-first runner, a 17-branch runner, a 21-second shell, a 22-ejector rod, a 23-valve ring, a 24-second spring, a 25-second sealing ring, a 26-third sealing ring, a 27-fourth sealing ring, a 28-second runner, a 29-brush ring, a 31-annular rubber ring, a 32-annular convex strip, a 33-annular recess, a 111-male head butt joint shell, a 112-male head connection base, a 211-female head butt joint shell and a 212-female head connection base.

Detailed Description

The following is a further description of the specific embodiments of the utility model with reference to the accompanying drawings.

In the description of the present utility model, it should be understood that the terms "center," "length," "width," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

Referring to fig. 1 to 4, a water-gas connector includes a male head 1, a female head 2, and an end face sealing structure 3, wherein the male head 1 includes a first housing 11, a valve core 12, a first spring 13, and a first seal ring 14; the first shell 11 is provided with a first penetrating cavity, one end of the first penetrating cavity is provided with a first inserting end 15, the other end of the first penetrating cavity is provided with a first connecting end, the valve core 12 is provided with a first flow channel 16, the valve core 12 is slidably arranged in the first penetrating cavity, and the first penetrating cavity can be communicated through the first flow channel 16; the valve core 12 is propped against the first plug-in end 15 through the first spring 13 and can be matched with the first sealing ring 14 to seal the first plug-in end 15; the female head 2 comprises a second shell 21, a mandril 22, a valve ring 23, a second spring 24, a second sealing ring 25, a third sealing ring 26 and a fourth sealing ring 27; the second shell 21 is provided with a second penetrating cavity, one end of the second penetrating cavity is provided with a second inserting end, and the other end of the second penetrating cavity is provided with a second connecting end; the ejector rod 22 is coaxially and fixedly arranged at the middle shaft of the second plug-in end, the valve ring 23 is slidably sleeved on the inner wall of the second plug-in end, the valve ring 23 is provided with a second flow channel 28, and the second penetrating cavity can be communicated through the second flow channel 28; the valve ring 23 is propped against the end part of the second plug end through a second spring 24, a second sealing ring 25 and a third sealing ring 26 are arranged on the inner wall of the second plug end, the second sealing ring 25 can be in sealing connection with the outer wall of the first plug end 15, and the third sealing ring 26 can seal a gap between the inner wall of the second plug end and the outer wall of the valve ring 23; the outer end of the ejector rod 22 is provided with a sealing end, and a fourth sealing ring 27 can seal a gap between the sealing end and the inner wall of the valve ring 23; the end face sealing structure 3 is annular, and the end face sealing structure 3 is arranged on the end face of the first plug-in end 15 and the outer end face of the valve ring 23. The first sealing ring 14 is sleeved on the peripheral wall of the valve core 12, and the first sealing ring 14 can be in sealing connection with the inner wall of the first plug-in end 15; the second sealing ring 25 and the third sealing ring 26 are clamped on the inner wall of the second inserting end, and the inner periphery of the third sealing ring 26 can be in sealing connection with the outer wall of the valve ring 23; the fourth sealing ring 27 is clamped on the inner wall of the valve ring 23, and the inner peripheral wall of the fourth sealing ring 27 is in sealing connection with the outer wall of the sealing end outside the ejector rod 22.

By adopting the arrangement of a plurality of sealing rings, the first sealing ring 14, the third sealing ring 26 and the fourth sealing ring 27 can realize the isolation of the butt joint end face and water vapor when the male connector 1 and the female connector 2 are inserted into the butt joint and when the male connector and the female connector are completely pulled out, so that leakage during the insertion and the extraction is prevented; at this time, the end face sealing structure 3 and the second sealing ring 25 have both sealing functions, so that the sealing effect during plugging is further improved, and the possibility of leakage is reduced; when the male head 1 and the female head 2 are inserted into place for communication, the surface of the first insertion end 15 abuts against the end surface of the valve ring 23, the sealing of the sealing end of the valve ring 23 and the ejector rod 22 is released, the outer end surface of the ejector rod 22 abuts against the outer end surface of the valve core 12, the sealing of the valve core 12 and the first shell 11 is released, and the second flow passage 28 and the first flow passage 16 are communicated with each other to realize the connection function of the connector. In the communication state, the end face sealing structure 3 realizes a first-stage sealing effect, the second sealing ring 25 between the first shell 11 and the second shell 21 realizes a second-stage sealing effect, and the leakage probability of the whole connector can be reduced through the two-stage sealing effect; the second-stage seal formed by the second seal ring 25 can also serve as a barrier against leakage at the third seal ring 26, improving the leakage prevention effect. Further, the end face sealing structure 3 is used in the plug-in process of the male head 1 and the female head 2, the friction of the end face sealing structure 3 is small, the end face sealing structure is not easy to damage, and the sealing effect of the communication state of the connector is further improved. In this embodiment, the male head 1 and the female head 2 may be locked and connected by an existing detachable structure such as an external hoop when they are plugged in place. The first housing 11 includes a male docking housing 111 and a male connection base 112, the male docking housing 111 and the male connection base 112 are in sealing connection through an annular seal ring, the second housing 21 includes a female docking housing 211 and a female connection base 212, and the female docking housing 211 and the female connection base 212 are in sealing connection through another annular seal ring; the male docking housing 111 is configured to dock with the female docking housing 211; to reduce the difficulty of machining, the male connection base 112 and the female connection base 212 are structurally different in that a counterbore for threading a bolt-fixed valve stem is provided on the female connection base 212.

In this embodiment, the end face sealing structure 3 includes an annular rubber ring 31 and an annular raised strip 32, the annular rubber ring 31 is mounted on the outer end face of the valve ring 23, and the annular raised strip 32 is disposed on the end face of the first plugging end 15. Specifically, the contact position of the annular rubber ring 31 and the annular raised strip 32 is provided with an annular concave recess 33, and the annular concave recess 33 is matched with the outline of the annular raised strip 32. The outer end surface of the valve ring 23 is provided with an annular pouring slot, and an annular rubber ring 31 is attached to the valve ring 23 by adopting a rubber injection molding process. The end face sealing structure 3 adopts the annular rubber ring 31 and the annular raised strips 32 to form the annular concave 33 in a matched manner, so that the sealing effect is better; by adopting the glue injection molding mode, the annular rubber ring 31 is not easy to shrink and is not easy to deviate from the valve ring 23, and the reliability of the connector is further improved.

In the embodiment, one end of a first spring 13 is sleeved on a first shell 11, and the other end is sleeved on a valve core 12; the valve core 12 is provided with a branch flow passage 17, one end of the branch flow passage 17 is communicated with the first flow passage 16, and the other end of the branch flow passage 17 is positioned in a cylindrical space surrounded by the first spring 13. One end of the second spring 24 is sleeved on the second shell 21, the other end of the second spring abuts against the valve ring 23, and a second flow passage 28 is formed in the second spring 24. The branch flow passage 17 on the valve core 12 is communicated with the first flow passage 16, fluid can be introduced to continuously wash the first spring 13, the second spring 24 faces the second flow passage 28, the fluid can continuously wash the second spring 24, impurities in the fluid are not easy to accumulate at the positions of the first spring 13 and the second spring 24 through the washing effect, the rebound effect of the first spring 13 and the second spring 24 is prevented from being guaranteed, and the reliability is further improved.

In this embodiment, the female head 2 further includes a brush ring 29, the brush ring 29 is sleeved on the inner wall of the second housing 21, and the brush ring 29 is closer to the second connection end than the third seal ring 26, and the inner wall of the brush ring 29 is connected with the outer peripheral wall of the valve ring 23. The brush ring 29 can reduce the entry of impurities into the gap between the outer peripheral wall of the valve ring 23 and the inner wall of the second housing 21, preventing the valve ring 23 from being stuck; meanwhile, the brush ring 29 can relatively move with the outer peripheral wall of the valve ring 23 to brush the outer peripheral wall of the valve ring 23, remove dirt on the outer peripheral wall of the valve ring 23, determine the smoothness of the movement of the valve ring 23, reduce the possibility of blocking and improve the reliability.

The foregoing description is directed to the preferred embodiments of the present utility model, but the embodiments are not intended to limit the scope of the utility model, and all equivalent changes or modifications made under the technical spirit of the present utility model should be construed to fall within the scope of the present utility model.

Claims

1. A water gas connector, characterized in that: the valve comprises a male head, a female head and an end face sealing structure, wherein the male head comprises a first shell, a valve core, a first spring and a first sealing ring; the first shell is provided with a first penetrating cavity, one end of the first penetrating cavity is provided with a first inserting end, the other end of the first penetrating cavity is provided with a first connecting end, the valve core is provided with a first flow passage, the valve core is arranged in the first penetrating cavity in a sliding manner, and the first penetrating cavity can be communicated through the first flow passage; the valve core is propped against the first plug-in end through the first spring and can be matched with a first sealing ring to seal the first plug-in end; the female head comprises a second shell, a push rod, a valve ring, a second spring, a second sealing ring, a third sealing ring and a fourth sealing ring; the second shell is provided with a second penetrating cavity, one end of the second penetrating cavity is provided with a second inserting end, and the other end of the second penetrating cavity is provided with a second connecting end; the ejector rod is coaxially and fixedly arranged at the middle shaft of the second plug-in end, the valve ring is slidably sleeved on the inner wall of the second plug-in end, a second flow passage is arranged on the valve ring, and the second penetrating cavity can be communicated through the second flow passage; the valve ring is propped against the end part of the second plug end through the second spring, the second sealing ring and the third sealing ring are alternately arranged on the inner wall of the second plug end, the second sealing ring can be in sealing connection with the outer wall of the first plug end, and the third sealing ring can seal a gap between the inner wall of the second plug end and the outer wall of the valve ring; the outer end of the ejector rod is provided with a sealing end, and the fourth sealing ring can seal a gap between the sealing end and the inner wall of the valve ring; the end face sealing structure is annular and is arranged on the end face of the first plug end and the outer end face of the valve ring; when the male head and the female head are inserted in place, the first insertion end face abuts against the end face of the valve ring, the outer end face of the ejector rod abuts against the outer end face of the valve core, and the second flow channel is communicated with the first flow channel.

2. A water gas connector as defined in claim 1, wherein: the end face sealing structure comprises an annular rubber ring and an annular raised line, the annular rubber ring is arranged on the outer end face of the valve ring, and the annular raised line is arranged on the end face of the first plug-in end.

3. A water gas connector as defined in claim 2, wherein: the contact part of the annular rubber ring and the annular raised strips is provided with annular depressions, and the annular depressions are matched with the outlines of the annular raised strips.

4. A water gas connector as defined in claim 1, wherein: the outer end face of the valve ring is provided with an annular pouring groove, and the annular rubber ring is formed on the valve ring by adopting a rubber injection molding process.

5. A water gas connector as defined in claim 1, wherein: one end of the first spring is sleeved on the first shell, the other end of the first spring is sleeved on the valve core, a branch flow passage is arranged on the valve core, one end of the branch flow passage is communicated with the first flow passage, and the other end of the branch flow passage is positioned in a cylindrical space surrounded by the first spring.

6. A water gas connector as defined in claim 1, wherein: one end of the second spring sleeve is sleeved on the second shell, the other end of the second spring sleeve abuts against the valve ring, and the second fluid passage opening is located in the second spring.

7. A water gas connector as defined in claim 1, wherein: the female head further comprises a brush ring, the brush ring is sleeved on the inner wall of the second housing, the brush ring is closer to the second connecting end than the third sealing ring, and the inner wall of the brush ring is connected with the outer peripheral wall of the valve ring.