CN212361165U

CN212361165U - Pipe joint and air conditioner

Info

Publication number: CN212361165U
Application number: CN202021249876.7U
Authority: CN
Inventors: 常玮; 肖庆; 李金伟
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2021-01-15
Anticipated expiration: 2030-06-30

Abstract

The utility model relates to a coupling and air conditioner, the utility model discloses a coupling, including male joint, female joint, the inside first sleeve that is equipped with of male joint body, first ball valve, the inside second sleeve that is equipped with of female joint body, second ball valve through the cooperation of sleeve with the ball valve, can realize quick connection, guarantee simultaneously before the connection, in connecting, connect after sealed, improve sealed reliability. When the self-sealing connector is used for an air conditioner, the self-sealing function of the connector of the internal and external machines of the air conditioner can be realized, the connection mode of the male connector and the female connector is changed to realize quick connection in the installation process, the installation specialty of workers and the installation specialty of equipment are reduced, the installation time is shortened, and the installation cost is reduced. In the connection process, the sealing mode that hard sealing and soft sealing are matched with each other is adopted for sealing connection, so that the leakage phenomenon of the refrigerant is avoided, and the sealing reliability is improved.

Description

Pipe joint and air conditioner

Technical Field

The utility model relates to a pipe connection field particularly, relates to a coupling and air conditioner.

Background

In the prior art, pipelines are often required to be connected, for example, in the field of household air conditioners, professional technicians are required to connect indoor units and outdoor units in the conventional air conditioner installation link, statistics shows that 40% of faults of the household air conditioners are caused by installation quality problems; meanwhile, air is exhausted from the air conditioner connecting pipe by using a refrigerant to ensure the vacuum degree of an air conditioning system, and the developed countries forbid to discharge the refrigerant to the atmosphere due to the environmental protection requirement; when the air conditioner is installed, a refrigerant pipeline needs to be communicated, and the prior art adopts a connecting stop valve, and the prior art has the following defects: firstly, the connection and installation are very troublesome, and in some countries in Europe, the labor cost of the connection and installation is often more than the cost of the air conditioner; secondly, a small amount of refrigerant is leaked in the connection operation process, so that the environment pollution is caused; and air can enter the system, affecting machine performance.

What most enterprises at present adopted is the horn mouth air conditioner connecting pipe, and the air conditioner connecting pipe of horn mouth can realize the high-speed joint of air conditioner pipeline, convenient to use, swift, laborsaving, current horn mouth air conditioner connecting pipe in the market, including copper joint, connecting pipe, copper nut, the connecting pipe inserts in the copper nut, and the connecting pipe that is arranged in the copper nut is provided with outside convex tubaeform outer edge, and copper joint and copper nut hug closely the extrusion along the tubaeform outer edge during the use, accomplish the connection of pipeline, but long-term after using, tubaeform outer edge long-term pressurized back tubaeform outer edge plastic deformation, the vibrations of air conditioner make the horn mouth part can become flexible for produce small clearance between copper joint and connecting pipe, the copper nut, easily leak, seriously influence the normal use of air conditioner pipeline.

Although the horn mouth can realize quick connection, the pressure maintaining process can only be realized by connecting the port before connection, the air conditioner connecting pipe can not realize the pressure maintaining process, the process of vacuumizing after the installation is finished by an installer is still needed, and the problems of consumed manpower and material resources and installation cost are not well solved.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a coupling and air conditioner to can't realize the problem of self sealss when solving current coupling and connecting, and can solve male joint and female joint and can realize the function of high-speed joint.

Specifically, the method comprises the following steps: a pipe joint, comprising: the male connector comprises a first body, a first sleeve and a first ball valve; the first sleeve is connected with the first body, a first ball valve is arranged in the first body and can rotate relative to the first body, the first ball valve is provided with a first transmission key, a first through hole is formed in the first ball valve, and a first channel is formed in the first body;

the female joint comprises a second body, a second sleeve and a second ball valve, the second sleeve is connected with the second body, the second ball valve is arranged in the second body and can rotate relative to the second body, the second ball valve is provided with a second transmission key, a second through hole is formed in the second ball valve, and a second channel is formed in the second body;

when the male connector and the female connector are in a separated state: the first ball valve is in a first position, and the first channel and the first through hole are in a non-communication state; the second ball valve is positioned at a third position, and the second channel and the second through hole are in a non-communication state;

when the male connector and the female connector are in a communicated state: the first ball valve is positioned at the second position, and the first channel is communicated with the first through hole; the second ball valve is positioned at a fourth position, and the second channel is communicated with the second through hole; the first passage is in communication with the second passage.

When the male connector is connected with the female connector, the first sleeve pushes the second transmission key to enable the second ball valve to be changed from the third position to the fourth position; the second sleeve pushes the first drive key to change the first ball valve from the first position to the second position.

Preferably, the first sleeve is formed into a semi-circular cylindrical structure, and a first groove is formed at one end; the second sleeve is in a semi-circular cylinder structure, and a second groove is formed at one end of the second sleeve; the first transmission key is positioned in the first groove, and the second transmission key is positioned in the second groove.

Preferably, a first cylindrical part is formed inside one end of the first sleeve, a first spherical seat is formed on the inner peripheral surface of one end of the first cylindrical part, a second spherical seat is formed on the first body, and the first and second spherical seats enclose a first space for accommodating the first ball valve;

and/or a second cylindrical part is formed inside one end of the second sleeve, a third spherical seat is formed on the inner peripheral surface of one end of the second cylindrical part, a fourth spherical seat is formed on the second body, and a second space for accommodating the second ball valve is surrounded by the third spherical seat and the fourth spherical seat.

Preferably, a first sealing ring is arranged between the first spherical seat and the first ball valve and between the second spherical seat and the first ball valve; and/or a second sealing ring is arranged between the third spherical seat and the fourth spherical seat and the second ball valve.

Preferably, the other end of the first cylindrical portion is formed with a first seal member, and the other end of the second cylindrical portion is formed with a second seal member; when the male connector is connected with the female connector, the first sealing element and the second sealing element are mutually extruded, so that sealing is formed between the other end of the first cylindrical part and the other end of the second cylindrical part.

Preferably, the other end of the first cylindrical portion is formed with a first accommodation groove, the first seal member being disposed inside the first accommodation groove; the other of the second cylindrical portion is formed with a second accommodation groove inside which a second seal member is provided;

preferably, the outer circumferential surface of the first body is formed with a locking groove, the inner circumferential surface of the second body is formed with a locking member, and at least a part of the locking member is caught in the locking groove when the male connector and the female connector are in a communicated state.

Preferably, the outer peripheral surface of the second body is sleeved with a locking cylinder for preventing the first body and the second body from being separated when the first body and the second body are connected.

Preferably, an elastic member is provided between an inner circumferential surface of the locking cylinder and an outer circumferential surface of the second body.

In addition, the utility model provides an air conditioner, include the utility model discloses a coupling.

Preferably, the pipe joint is used for pipe connection between an indoor unit and an outdoor unit of an air conditioner.

Through the setting, the utility model discloses a coupling can realize preventing leaking before connecting, connect in prevent leaking, connect the multiple effect sealed after.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The above and other objects, features and advantages of the present disclosure will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings. The drawings described below are merely some embodiments of the present disclosure, and other drawings may be derived from those drawings by those of ordinary skill in the art without inventive effort.

Fig. 1 is a schematic cross-sectional view of a male connector according to an embodiment of the present invention.

Fig. 2 is an enlarged schematic view at a of fig. 1.

Fig. 3 is a schematic sectional view of a female joint according to an embodiment of the present invention.

Fig. 4 is a schematic sectional view of a male connector and a female connector according to an embodiment of the present invention.

Fig. 5 shows one of the schematic fitting diagrams of the first sleeve and the second sleeve according to the embodiment of the present invention.

Fig. 6 is a second schematic view illustrating the cooperation of the first sleeve and the second sleeve according to the embodiment of the present invention.

Fig. 7 is a perspective view of one of the first sleeve or the second sleeve according to the embodiment of the present invention.

Fig. 8 is a second perspective view of the first sleeve or the second sleeve according to the embodiment of the present invention.

Wherein: 1-male connector, 11-first ball valve, 12-first transmission key, 13-first sealing element and 14-locking groove; 2-female joint, 21-second ball valve, 22-second transmission key, 23-second sealing element, 24-locking element, 25-locking cylinder and 26-locking spring; 3-first sleeve, 31-first cylindrical portion, 32-first groove, 4-second sleeve, 41-second cylindrical portion, 42-second groove, 51-first sealing ring, 52-second sealing ring.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals denote the same or similar parts in the drawings, and thus, a repetitive description thereof will be omitted.

Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the subject matter of the present disclosure can be practiced without one or more of the specific details, or with other methods, components, devices, steps, and so forth. In other instances, well-known methods, devices, implementations, or operations have not been shown or described in detail to avoid obscuring aspects of the disclosure.

It will be understood that, although the terms first, second, third, etc. may be used herein to describe various structures, these structures should not be limited by these terms. These terms are used to distinguish one structure from another structure. Thus, a first structure discussed below may be termed a second structure without departing from the teachings of the disclosed concept. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

It is to be understood by those skilled in the art that the drawings are merely schematic representations of exemplary embodiments, and that the blocks or processes shown in the drawings are not necessarily required to practice the present disclosure and are, therefore, not intended to limit the scope of the present disclosure.

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings 1-8:

as shown in fig. 1 to 8, a pipe joint according to an embodiment of the present invention includes: the male connector 1 comprises a first body, a first sleeve 3 and a first ball valve 11; the first sleeve 3 is fixedly connected with the first body, a first ball valve 11 is arranged in the first body, the first ball valve 11 can rotate relative to the first body, the first ball valve 11 is provided with a first transmission key 12, a first through hole is formed in the first ball valve 11, and a first channel is formed in the first body; the female joint 2 comprises a second body, a second sleeve 4 and a second ball valve 21, the second sleeve 4 is fixedly connected with the second body, the second ball valve 21 is arranged in the second body, the second ball valve 21 can rotate relative to the second body, the second ball valve 21 is provided with a second transmission key 22, a second through hole is formed in the second ball valve 21, and a second channel is formed in the second body; when the male connector 1 and the female connector 2 are in a separated state: the first ball valve 11 is at a first position, and the first channel and the first through hole are in a non-communication state; the second ball valve 21 is in a third position, and the second passage and the second through hole are in a non-communication state; when the male connector 1 and the female connector 2 are in a communicated state: the first ball valve 11 is at the second position, and the first channel is communicated with the first through hole; the second ball valve 21 is in the fourth position, and the second passage is communicated with the second through hole; the first passage is in communication with the second passage. When the male connector 1 is connected with the female connector 2, the first sleeve 3 pushes the second transmission key 22, so that the second ball valve 21 is changed from the third position to the fourth position; the second sleeve 4 pushes the first transmission key 12 to change the first ball valve 11 from the first position to the second position.

As shown in fig. 5 to 8, the first sleeve 3 is formed in a semicircular annular cylindrical structure, and a first groove 32 is formed at one end; the second sleeve 4 is formed into a semicircular annular cylinder structure, and a second groove 42 is formed at one end; the first drive key 12 is located in the first slot 32 and the second drive key 22 is located in the second slot 42.

A first cylindrical part 31 is formed inside one end of the first sleeve 3, a first spherical seat is formed on the inner peripheral surface of one end of the first cylindrical part 31, a second spherical seat is formed on the first body, and a first space for accommodating the first ball valve 11 is enclosed by the first spherical seat and the second spherical seat; and/or, a second cylindrical part 41 is formed inside one end of the second sleeve 4, a third spherical seat is formed on the inner peripheral surface of one end of the second cylindrical part 41, a fourth spherical seat is formed on the second body, and a second space for accommodating the second ball valve 21 is enclosed by the third and fourth spherical seats.

A first sealing ring 51 is arranged between the first spherical seat and the first ball valve 11; and/or a second sealing ring 52 is arranged between the third spherical seat and the fourth spherical seat and the second ball valve 21.

The other end of the first cylindrical portion 31 is formed with a first seal 13, and the other end of the second cylindrical portion 41 is formed with a second seal 23; when the male connector 1 and the female connector 2 are connected, the first seal 13 and the second seal 23 are pressed against each other, and a seal is formed between the other end of the first cylindrical portion 31 and the other end of the second cylindrical portion 41.

A first receiving groove is formed at the other end of the first cylindrical portion 31, and the first sealing member 13 is disposed inside the first receiving groove; the other of the second cylindrical portion 41 is formed with a second accommodation groove inside which the second seal member 23 is disposed;

the first sealing element 13, the second sealing element 23, the first sealing ring 51, the second sealing ring 52, the first sealing element 13, and the second sealing element 23 can be sealing rubber.

The first sleeve 3 and the second sleeve 4 of the utility model are also called special-shaped sleeves. When the male connector 1 is communicated with the female connector 2, the first ball valve 21 and the second ball valve 21 which are the same in structure are matched with the first sleeve 4 and the second sleeve 4 to realize communication.

The two special-shaped sleeves can be matched and locked with each other; the bottom of the sleeve acts on a transmission key of the spherical valve body in the connection process to turn the spherical valve body, and the two sleeves are clamped with the male connector 1 and the female connector 2.

Before the male connector 1 and the female connector 2 are connected, the valve core of the spherical valve body is 90 degrees to the valve port, the plane of a transmission key on the ball valve is parallel to the valve port, and the valve core is in a closed state in the valve body at the moment, so that sealing can be realized. The first sealing ring 51 and the second sealing ring 52 which can be sealing rubber are preferably used for soft sealing, and the process of sealing in the high-pressure process can be realized by using the pressure sealing, so that the pressure maintaining function is realized, and the medium in the pipeline is ensured not to leak.

When the pipelines are not connected, the valve cores of the two ball valves are in a closed and sealed state, so that the medium in the pipelines is prevented from leaking; the spherical valve body, the first sealing ring 51 and the second sealing ring 52 form sealing before the male joint 1 and the female joint 2 are connected. When the valve cores of the two ball valves are in a closed and sealed state, the first sealing rings 51 and the second sealing rings 52 around the two ball valves ensure that the medium in the pipeline does not leak.

When the two pipelines need to be communicated, the first ball valve 21 and the second ball valve 21 are matched through the first sleeve 4 and the second sleeve 4 to respectively apply force to the transmission key of the ball valve, so that the ball valves rotate, the ball valves are screwed in place, and the flow channels of the valve cores of the two ball valves are opened to finally form a medium flow channel. The first ball valve 21 and the second ball valve 21 are turned by 90 degrees under the action of the sleeve to form a passage in the valve body, and the communication of the connecting joint is completed.

When the two pipelines are communicated, the centers of the two special-shaped sleeves are aligned, the first sealing element 13 and the second sealing element 23 on the sleeves are attached, the first sealing element 13 and the second sealing element 23 can be rubber pads, the distance between the two sleeves is closer and closer in the connecting process, the compression amount between the corresponding rubber pads is gradually increased, so that the two ball valves form reliable sealing in the connecting state, and simultaneously the tops of the two sleeves are in hard sealing fit; when the ball valves are screwed in place, the sealing elements of the two ball valves are in a sealing state with a certain compression amount, and the hard seal and the soft seal are matched with each other to ensure that a medium cannot leak from the two ball valves.

When two pipelines need to be communicated, centers of the two sleeves are aligned, rubber pads of the two ball valves are attached, in the communication process, the first ball valve 11 and the second ball valve 21 rotate through the matching of the special-shaped sleeves to respectively apply force to transmission keys of the first ball valve 11 and the second ball valve 21, so that the ball valves rotate, when the sleeves apply force to enable the ball valves to turn 90 degrees and are screwed in place, and flow channels of valve cores of the two ball valves are opened to finally form a medium flow channel; in the connecting process, the distance between the two sleeves is closer and closer, and the compression amount between the corresponding rubber gaskets of the sleeves is gradually increased, so that the two sleeves form reliable sealing in the connecting state. When the two ball valves are simultaneously screwed in place, the rubber pads between the two ball valves ensure that the two ball valves are reliable, and the rubber pads of the two ball valves are in a sealing state with a certain compression amount, so that the medium is ensured not to leak from the two ball valves.

As shown in fig. 1 to 4, the locking groove 14 is formed on the outer circumferential surface of the first body, the locking member 24 is formed on the inner circumferential surface of the second body, and at least a portion of the locking member 24 is caught in the locking groove 14 when the male connector 1 and the female connector 2 are in a communicating state. The female joint 2 is arranged on the inner peripheral surface of the second body and is provided with a locking piece close to the inlet side, the locking piece can be an O-shaped sealing ring, and when the male joint 1 is inserted and connected into the female joint 2, a locking groove on the outer side of the male joint 1 is in sealing fit and locking with a locking key of the O-shaped sealing ring.

The outer peripheral surface of the second body is sleeved with a locking cylinder 25 for preventing the first body from being separated from the second body when the first body is connected with the second body. An elastic member, which may be a locking spring 26, is provided between the inner circumferential surface of the locking cylinder 25 and the outer circumferential surface of the second body.

Additionally the utility model provides an air conditioner, include the coupling, the utility model discloses a coupling can be used to the refrigerant pipeline between air condensing units and the indoor set and be connected, its technological effect is showing, has obvious pressurize, sealed effect.

Has the advantages that:

the utility model discloses a coupling can realize quick connection, guarantees simultaneously before the connection, in connecting, connect the back sealed. The connector self sealss function. The hard seal and the soft seal are mutually matched and sealed, so that the sealing reliability is improved. When the self-sealing connector is used for an air conditioner, the self-sealing function of the connector of the internal and external machines of the air conditioner can be realized, the connection mode of the male connector and the female connector is changed to realize quick connection in the installation process, the installation specialty of workers and the installation specialty of equipment are reduced, the installation time is shortened, and the installation cost is reduced. In the connection process, the sealing mode that hard sealing and soft sealing are matched with each other is adopted for sealing connection, so that the leakage phenomenon of the refrigerant is avoided, and the sealing reliability is improved.

Exemplary embodiments of the present disclosure are specifically illustrated and described above. It is to be understood that the present disclosure is not limited to the precise arrangements, instrumentalities, or instrumentalities described herein; on the contrary, the disclosure is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims

1. A pipe joint, comprising: male joint (1) and female joint (2), its characterized in that:

the male connector (1) comprises a first body, a first sleeve (3) and a first ball valve (11); the first sleeve (3) is fixedly connected with the first body, a first ball valve (11) is arranged in the first body, the first ball valve (11) can rotate relative to the first body, the first ball valve (11) is provided with a first transmission key (12), a first through hole is formed in the first ball valve (11), and a first channel is formed in the first body;

the female joint (2) comprises a second body, a second sleeve (4) and a second ball valve (21), the second sleeve (4) is fixedly connected with the second body, the second ball valve (21) is arranged inside the second body, the second ball valve (21) can rotate relative to the second body, the second ball valve (21) is provided with a second transmission key (22), a second through hole is formed inside the second ball valve (21), and a second channel is formed inside the second body;

when the male connector (1) and the female connector (2) are in a separated state: the first ball valve (11) is at a first position, and the first channel and the first through hole are in a non-communication state; the second ball valve (21) is in a third position, and the second channel and the second through hole are in a non-communication state;

when the male connector (1) and the female connector (2) are in a communicated state: the first ball valve (11) is at the second position, and the first channel is communicated with the first through hole; the second ball valve (21) is positioned at a fourth position, and the second channel is communicated with the second through hole; the first channel is communicated with the second channel;

when the male connector (1) is connected with the female connector (2), the first sleeve (3) pushes the second transmission key (22) to enable the second ball valve (21) to be changed from the third position to the fourth position; the second sleeve (4) pushes the first transmission key (12) to change the first ball valve (11) from the first position to the second position.

2. The pipe coupling according to claim 1, wherein: the first sleeve (3) is formed into a semicircular annular cylinder structure, and a first groove (32) is formed at one end of the first sleeve; the second sleeve (4) is formed into a semicircular annular cylinder structure, and a second groove (42) is formed at one end of the second sleeve; the first drive key (12) is located in the first slot (32) and the second drive key (22) is located in the second slot (42).

3. A pipe joint according to claim 1 or 2, wherein: a first cylindrical part (31) is formed inside one end of the first sleeve (3), a first spherical seat is formed on the inner peripheral surface of one end of the first cylindrical part (31), a second spherical seat is formed on the first body, and a first space for accommodating the first ball valve (11) is enclosed by the first spherical seat and the second spherical seat;

and/or a second cylindrical part (41) is formed inside one end of the second sleeve (4), a third spherical seat is formed on the inner peripheral surface of one end of the second cylindrical part (41), a fourth spherical seat is formed on the second body, and a second space for accommodating the second ball valve (21) is surrounded by the third spherical seat and the fourth spherical seat.

4. A pipe coupling according to claim 3, wherein: a first sealing ring (51) is arranged between the first spherical seat and the first ball valve (11) and between the second spherical seat and the first ball valve; and/or a second sealing ring (52) is arranged between the third spherical seat and the fourth spherical seat and the second ball valve (21).

5. A pipe coupling according to claim 3, wherein: a first seal (13) is formed at the other end of the first cylindrical portion (31), and a second seal (23) is formed at the other end of the second cylindrical portion (41); when the male connector (1) is connected with the female connector (2), the first sealing element (13) and the second sealing element (23) are mutually extruded, and the other end of the first cylindrical part (31) and the other end of the second cylindrical part (41) are sealed.

6. The pipe coupling according to claim 5, wherein: a first accommodating groove is formed at the other end of the first cylindrical part (31), and a first sealing element (13) is arranged in the first accommodating groove; the other end of the second cylindrical portion (41) is formed with a second accommodation groove in which a second seal member (23) is disposed.

7. The pipe joint according to any one of claims 1, 2, 4-6, wherein: the outer peripheral surface of the first body is provided with a locking groove (14), the inner peripheral surface of the second body is provided with a locking piece (24), and when the male connector (1) and the female connector (2) are in a communicated state, at least part of the locking piece (24) is clamped in the locking groove (14).

8. The pipe joint according to any one of claims 1, 2, 4-6, wherein: the outer peripheral surface of the second body is sleeved with a locking cylinder (25) which is used for preventing the first body from being separated from the second body when the first body is connected with the second body.

9. The pipe coupling according to claim 8, wherein: an elastic member is provided between the inner peripheral surface of the lock cylinder (25) and the outer peripheral surface of the second body.

10. An air conditioner, characterized in that: comprising a pipe coupling according to any of claims 1-9.