CN214425371U - Quick coupling and air conditioner for split type air conditioner - Google Patents

Abstract

The utility model discloses a quick connector for a split air conditioner and an air conditioner, wherein the quick connector for the split air conditioner consists of a male connector and a female connector, the first end of the female connector is in transitional connection with an air conditioner outdoor unit connecting pipe, a movable sleeve and a first elastic piece are arranged in the female connector, and a central ejector rod is arranged in the movable sleeve; the male connector is detachably connected with the female connector, a conical surface extending along the circumferential direction of the inner wall surface of the second end of the male connector is arranged on the inner wall surface of the second end of the male connector, and a plug and a second elastic piece are arranged in the male connector; the first end of jam is equipped with the annular step portion that extends along its circumference, and the cover is equipped with rubber seal ring on the annular step portion, and rubber seal ring compresses tightly through the gasket, and the gasket is at the tip riveting fixed of jam. According to the utility model provides a split type idle call quick-operation joint has adopted the rubber seal ring that rubber materials made, has avoided the public joint to have the hidden danger of leaking outward to the gasket adopts the mode of riveting fixation, avoids constantly strikeing in the air current that the gasket loosens from blockking up.

Description

Quick coupling and air conditioner for split type air conditioner

Technical Field

The utility model belongs to the technical field of the air conditioner, concretely relates to split type idle call quick-operation joint and air conditioner that has this split type idle call quick-operation joint.

Background

The split air conditioner mainly comprises an indoor unit and an outdoor unit, a system joint for connecting a refrigerating medium between the two units, and the prior art adopts a stop valve as a joint, and has the following defects: firstly, installation is carried out by professional personnel, labor and time are wasted, particularly in countries such as Europe and America, the labor and the cost are high, and the installation cost is often higher than that of the air conditioner local machine; secondly, a small amount of refrigerant leakage can be caused in the connection operation process; and thirdly, air sometimes enters the refrigerating system during installation, so that the pressure of the refrigerating system is increased during working, and the refrigerating performance is poor.

The utility model discloses a utility model patent with grant publication number CN2733234Y discloses a split type air conditioner quick-operation joint, and the quick-operation joint of this structure includes a male joint and a female joint, installs the valve module in male joint, female joint separately, and the jam of male joint contacts and backs up with the case of female joint and communicates with each other.

However, the quick coupling has the following defects: firstly, a plastic sealing ring is arranged on a step of the blocked head of the male connector, the plastic sealing ring and the inner hole wall of the male connector are in line contact sealing, and the plastic sealing ring has higher hardness and poorer sealing effect, has addiction to external leakage and poor reliability; secondly, the end part of the plug is provided with a thread, the plastic sealing ring is fastened on the plug step by a copper nut for fixing, the structure is complex, the processing is troublesome, the cost is high, and when the plug is used in a joint, the thread connection is suffered from loosening caused by continuous impact of airflow, and the reliability is poor.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least.

Therefore, the utility model provides a split type idle call quick-operation joint, this split type idle call quick-operation joint have simple structure, sealed effectual, the preparation is easy, advantage such as with low costs.

The quick joint for the split air conditioner comprises a male joint and a female joint, wherein a first end of the female joint is used for being in transitional connection with an air conditioner outdoor unit connecting pipe, a movable sleeve and a first elastic piece are arranged in the female joint, a central ejector rod is arranged in the movable sleeve, the central ejector rod is arranged in the movable sleeve and extends along the axial direction of the female joint, and a valve core is arranged at one end of the central ejector rod; the first end of the male joint is used for being in transitional connection with a connecting pipe of an indoor unit of an air conditioner, the second end of the male joint is detachably connected with the second end of the female joint, a conical surface extending along the circumferential direction of the inner wall surface of the second end of the male joint is arranged on the inner wall surface of the second end of the male joint, a plug and a second elastic piece are arranged in the male joint, the plug is movably arranged in the male joint along the axial direction of the male joint, and the first end of the plug is stopped against the valve core when the male joint is connected with the female joint so as to conduct the male joint and the female joint; the first end of jam is equipped with the annular step portion that extends along its circumference, the cover is equipped with rubber seal ring on the annular step portion, rubber seal ring compresses tightly through the gasket, the gasket is in the tip riveting fixed of jam

According to the utility model discloses split type idle call quick-operation joint is equipped with rubber seal ring through the outer peripheral face that blocks up to cooperate through the conical surface of rubber seal ring with the male joint, for the face contact is sealed between rubber seal ring and the conical surface, has avoided the hidden danger of revealing outward, has improved the sealing performance of male joint and quick-operation joint's reliability. And, compress tightly rubber seal ring through the gasket, the gasket is at the tip riveting fixed of jam, has avoided processing the screw thread at the tip of jam, and in the continuous rush of air current, the gasket also can not loosen from the jam, has simple structure, processes advantages such as simple and convenient, with low costs, reliability height.

According to an embodiment of the present invention, the gasket is riveted by spinning to the blocking end.

According to the utility model discloses an embodiment, the gasket through expand the riveting in block up the tip.

According to an embodiment of the present invention, the plug is an integrally formed brass member.

According to the utility model discloses an embodiment, the bottom surface of annular step portion is equipped with the annular groove that extends along its circumference.

According to the utility model discloses an embodiment, the bottom surface of annular step portion is equipped with along its circumference extension annular protruding.

According to the utility model discloses an embodiment, the outer peripheral face of rubber seal ring is the arcwall face.

According to an embodiment of the present invention, the rubber sealing ring is a HNBR material piece, and the hardness of the rubber sealing ring is shore 70 ° to 90 °.

The air conditioner according to the second aspect of the present application comprises the quick connector for a split air conditioner described in any one of the above embodiments.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a cross-sectional view of a male connector of a quick coupling for a split type air conditioner according to the prior art;

fig. 2 is a cross-sectional view of a quick coupling for a split type air conditioner according to an embodiment of the present invention;

FIG. 3 is a sectional view of a female joint of a quick coupling for a split air conditioner according to an embodiment of the present invention

Fig. 4 is a cross-sectional view of a male connector of a quick connector for a split air conditioner according to an embodiment of the present invention;

fig. 5 is a sectional view showing a blockage of the quick coupling for a split type air conditioner according to an embodiment of the present invention;

fig. 6 is a sectional view showing a blockage of a quick coupling for a split type air conditioner according to still another embodiment of the present invention;

FIG. 7 is a schematic view of the spin riveting of the rubber sealing ring and the riveting part of the quick coupling for the split air conditioner according to the present invention;

fig. 8 is a schematic view of expansion riveting of the riveting part of the quick coupling for a split air conditioner and the rubber sealing ring according to the present invention;

fig. 9 is a cross-sectional view of a rubber sealing ring of a quick coupling for a split air conditioner according to an embodiment of the present invention.

Reference numerals:

a split type air conditioner quick coupling 100;

a female joint 10; a first channel 11;

a movable sleeve 20;

a center lift pin 30; a valve spool 31;

a first elastic member 40;

a male connector 50; a second channel 51; a tapered surface 52;

plugging 60; an annular step portion 61; an annular groove 62; an annular projection 63; a body 64; a rivet 65;

a second elastic member 70;

a rubber seal ring 80;

a spacer 90;

a joint body B8; a tapered surface 81;

the male plug 9; a plastic sealing ring 91; and a nut 92.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The present application is an invention made by the inventors based on the following facts.

Fig. 1 shows a cross-sectional view of a male connector of a quick coupling for a split type air conditioner in the prior art.

The split air conditioner quick connector comprises a male connector and a female connector, wherein valve assemblies are respectively arranged in the male connector and the female connector, the male connector and the female connector are connected through a connecting mechanism, the female connector comprises a connector body A, one end of the connector body A is connected with an air conditioner connecting pipe, a movable sleeve and a spring are arranged in the connector body A, a central ejector rod is arranged in the movable sleeve, and one end of the central ejector rod is connected with a valve core. The male connector comprises a connector body B, one end of the connector body B is connected with an air conditioner connecting pipe, and a plug and a spring are arranged in the connector body B; when the plug is clamped, the end part of the movable sleeve in the female connector is abutted against the step of the male connector, and the plug of the male connector is contacted with the valve core of the female connector to be pushed open and communicated.

The quick coupling as above has the following drawbacks: firstly, a plastic sealing ring 91 is arranged on a head step of the male connector plug 9, the inner hole wall of the connector body B8 is a conical surface 81, the conical surface 81 and the plastic sealing ring 91 are in line contact sealing, and the plastic sealing ring 91 has high hardness and poor sealing effect, so that an addiction of external leakage exists, and the reliability is poor; secondly, the structure blocks the end part to process threads, the plastic sealing ring 91 is fastened on the blocking step by the nut 92 to be fixed, the structure is complex, the processing is troublesome, the cost is high, and the threads have addiction to loosening in continuous air flow impact and have poor reliability.

Based on this, the inventors of the present application have conducted long-term studies and experiments to creatively develop the following inventions.

As shown in fig. 2 to 9, the quick coupling 100 for a split air conditioner according to the embodiment of the present application includes a female coupling 10 and a male coupling 50, a first end of the female coupling 10 is used for being transitionally connected with an air conditioner outdoor unit connection pipe, a movable sleeve 20 and a first elastic member 40 are disposed in the female coupling 10, a center lift pin 30 is disposed in the movable sleeve 20, the center lift pin 30 is disposed in the movable sleeve 20 and extends along an axial direction of the female coupling 10, and a valve core 31 is disposed at one end of the center lift pin 30. The first end of the male joint 50 is used for being in transitional connection with an air-conditioning indoor unit connecting pipe, the second end of the male joint 50 is detachably connected with the second end of the female joint 10, a tapered surface 52 extending along the circumferential direction of the inner wall surface of the second end of the male joint 50 is arranged on the inner wall surface of the second end of the male joint 50, a plug 60 and a second elastic piece 70 are arranged in the male joint 50, the plug 60 is movably arranged in the male joint 50 along the axial direction of the male joint 50, and the first end of the plug 60 stops against the valve core 31 when the male joint 50 is connected with the female joint 10 so as to conduct the male joint 50 and the female joint 10. The first end of jam 60 is equipped with the annular step portion 61 that extends along its circumference, and the cover is equipped with rubber seal ring 80 on the annular step portion 61, and rubber seal ring 80 compresses tightly through gasket 90, and gasket 90 is at the tip riveting of jam 60.

That is, in the embodiment of the present application, the quick coupling for a split type air conditioner 100 is mainly composed of the female coupling 10 and the male coupling 50, valve assemblies may be respectively provided in the female coupling 10 and the male coupling 50, and when the female coupling 10 and the male coupling 50 are respectively used alone, the valve assemblies in the female coupling 10 and the male coupling 50 may be respectively in a sealed state; when the female connector 10 is connected to the male connector 50, the valve components in the female connector 10 and the male connector 50 may be in an open state at the same time.

For convenience of description, the extending direction of the female connector 10 and the male connector 50 is defined as a horizontal direction.

As shown in fig. 3, a first passage 11 penetrating in the horizontal direction is provided in the female joint 10, and a refrigerant medium can be accommodated in the first passage 11. The left end of the female connector 10 may be transitionally connected with an outdoor unit adapter of an air conditioner, and the right end of the female connector 10 may be detachably connected with the male connector 50. The first channel 11 can be provided with a movable sleeve 20 and a central push rod 30 in sequence from outside to inside, the right end of the central push rod 30 can be provided with a valve core 31, the left end of the central push rod 30 can be connected with the inner wall surface of the female joint 10, and the central push rod 30 and the female joint 10 can be in a relatively fixed state. A first elastic member 40 may be provided between the movable sleeve 20 and the inner wall surface of the female joint 10, and the first elastic member 40 may be stretchable and contractible in the axial direction of the first passage 11, as shown in fig. 2 and 3, and the first elastic member 40 may be compressible leftward when a leftward force is applied to the movable sleeve 20. The inner wall surface of the second end of the female connector 10 and the movable sleeve 20 are matched to form a valve assembly, when the movable sleeve 20 moves leftwards, the outer peripheral surface of the movable sleeve 20 can be separated from the inner wall surface of the second end of the female connector 10, and at the moment, the first channel 11 is in an open state. When the right end of the movable sleeve 20 is released, the first elastic element 40 drives the movable sleeve 20 to move rightwards under the action of restoring force, the outer peripheral surface of the movable sleeve 20 can be stopped against the inner wall surface of the second end of the female joint 10, and at the moment, the first channel 11 is in a sealed state.

As shown in fig. 4, a second passage 51 penetrating in the horizontal direction is provided in the male connector 50, and a refrigerant medium can be accommodated in the second passage 51. The right end of the male joint 50 can be in transition connection with the indoor unit joint of the air conditioner, and the inner wall surface of the left end of the male joint 50 is provided with a conical surface 52 extending along the circumferential direction of the male joint. A plug 60 is provided in the second passage 51, and the plug 60 is movable in the axial direction of the second passage 51. As shown in fig. 2, 4 to 8, an annular step portion 61 extending in the circumferential direction may be provided at the left end of the plug 60, and a rubber seal ring 80 may be fitted over the annular step portion 61. A second elastic member 70 may be provided between the plug 60 and the male connector 50, and when a rightward force is applied to the plug 60, the second elastic member 70 is compressed, and the rubber sealing ring 80 is disengaged from the tapered surface 52, with the second passage 51 being in an open state. When the left end of the plug 60 is released, the second elastic element 70 drives the plug 60 to move to the left under the action of the restoring force, the rubber sealing ring 80 is stopped against the conical surface 52, and the second passage 51 is in a sealing state.

As shown in fig. 2, when the right end of the female connector 10 is assembled with the left end of the male connector 50, the left end of the male connector 50 is inserted into the first passage 11 and applies a leftward force to the movable sleeve 20, the movable sleeve 20 moves leftward against the elastic force of the first elastic member 40, and the first passage 11 is in an open state. The right end of the central push rod 30 is stopped against the plug 60, the right end of the central push rod 30 applies a rightward acting force to the plug 60, the plug 60 overcomes the elastic force of the second elastic piece 70 to move rightward until the outer peripheral surface of the plug 60 is separated from the conical surface 52, the second channel 51 is in an open state, and therefore the second channel 51 and the first channel 11 are in a conduction state.

It should be noted that, when the rubber sealing ring 80 made of rubber material is adopted, the outer peripheral surface of the rubber sealing ring 80 can form surface contact with the tapered surface 52, the hardness of the rubber sealing ring 80 is lower than that of a plastic ring, the sealing effect of the rubber sealing ring 80 is better, and the addiction of external leakage of the male connector 50 is avoided.

For convenience of description, the plug 60 is defined as including a body 64 and a rivet 65, as shown in fig. 4, the body 64 is a column, an annular step 61 is provided on an outer circumference of an end surface of the first end of the body 64, and a rubber sealing ring 80 may be sleeved on an outer circumference of the annular step 61. The caulking portion 65 is provided on the end surface of the first end of the body 64, the caulking portion 65 is a columnar shape provided coaxially with the body 64, and the first end surface of the caulking portion 65 stops abutting against the valve body 31 when the male connector 50 is connected to the female connector 10. The rubber seal ring 80 can be more firmly attached to the body 64 by providing the caulking portion 65.

As shown in fig. 2 and 4, the quick coupling 100 for a split air conditioner further includes a gasket 90, the gasket 90 is fitted to the rivet 65 and fixed to the body 64 by the rivet 65, and one side of the gasket 90 abuts against and presses the rubber seal ring 80, thereby further improving the sealing performance when the rubber seal ring 80 abuts against the tapered surface 52. The riveting portion 65 and the gasket 90 are connected by riveting. When the gasket 90 is mounted, no thread needs to be machined at the end of the plug 60, the structure is simplified, and the gasket 90 is prevented from being fastened to the annular step portion 61 by a nut, so that the cost is reduced. When the joint 100 is used, under the continuous impact of air flow, the gasket 90 is fixed in a riveting mode, so that the gasket 90 cannot be loosened from the plug 60, and the reliability is improved.

From this, according to split type idle call quick-operation joint 100 of this application embodiment, through being equipped with rubber seal ring 80 at the outer peripheral face that blocks up 60 to cooperate through rubber seal ring 80 and the conical surface 52 of male joint 50, be face contact sealed between rubber seal ring 80 and the conical surface 52, avoided the hidden danger of revealing outward, improved male joint 50's sealing performance and quick-operation joint 100's reliability. And, compress tightly rubber seal ring 80 through gasket 90, gasket 90 is riveted the fixed at the tip of jam 60, has avoided processing the screw thread at the tip of jam 60, and in the incessant impact of air current, gasket 90 also can not loosen from jam 60, has simple structure, processes advantages such as simple and convenient, with low costs, reliability height.

In some embodiments of the present application, as shown in fig. 7, the riveting portion 65 is riveted to the end of the plug 60 by spinning, which is an improved rivetless riveting based on a rivetless self-piercing riveting, so that the quality risk of the gasket 90 due to falling off is reduced. In other embodiments of the present application, as shown in fig. 8, the rivet portion 65 is riveted to the end of the plug 60 by expansion riveting, and when expansion riveting is used, the end of the plug 60 is upset to form the fastening pad 90 without a large impact force, and the pad 90 does not rebound and become loose after riveting. The two riveting modes have the advantages of convenience in implementation, good fixing effect and the like.

Alternatively, plug 60 is an integrally formed piece of brass, such as type C3771 brass.

As shown in fig. 6, the bottom surface of the annular step portion 61 is provided with an annular groove 62 extending along the circumferential direction thereof, and at least a portion of a side of the rubber seal ring 80 disposed opposite to the bottom surface of the annular step portion 61 can be inserted into the annular groove 62, thereby improving the tight coupling degree between the annular step portion 61 and the rubber seal ring 80. As shown in fig. 2, the bottom surface of the annular step portion 61 is a left end surface of the annular step portion 61.

As shown in fig. 5, the bottom surface of the annular step portion 61 is provided with an annular protrusion 63 extending along the circumferential direction thereof, and as shown in fig. 2, the annular protrusion 63 located on the right side of the rubber seal ring 80 can apply a leftward force to the rubber seal ring 80, so that the fitting degree between the edge of the rubber seal ring 80 and the tapered surface 52 is improved, and the edge of the rubber seal ring 80 is prevented from tilting toward the right side.

As shown in fig. 9, the outer peripheral surface of the rubber seal ring 80 is an arc-shaped surface, and the extending direction of at least a part of the arc-shaped surface is substantially the same as the extending direction of the tapered surface 52, so that the arc-shaped surface can be better attached to the tapered surface 52. Optionally, the rubber seal 80 is a Hydrogenated Nitrile Butadiene Rubber (HNBR) material, and the hardness of the rubber seal ring is shore 70 ° to 90 °, which can ensure the sealing performance of the male connector 50.

In summary, the quick coupling 100 for a split type air conditioner according to the embodiment of the present application combines the female coupling 10, the movable sleeve 20, the center lift rod 30, the first elastic member 40, the male coupling 50, the plug 60, the second elastic member 70 and the rubber sealing ring 80, and the rubber sealing ring 80 is sleeved on the annular step portion 61 of the plug 60, so that the sealing performance between the rubber sealing ring 80 and the tapered surface 52 can be improved; the rubber sealing ring 80 is connected with the plug 60 in a riveting mode, and the rubber sealing ring has the advantages of simple structure, convenience and quickness in processing, low cost, good reliability and the like, and the rubber sealing ring 80 keeps tight connection with the plug 60 in continuous air flow impact.

The embodiment of the application further provides an air conditioner, and the air conditioner comprises the quick connector 100 for the split air conditioner in any one of the above embodiments. Since the quick coupling 100 for a split type air conditioner according to the embodiment of the present application improves the sealing performance and reliability, the air conditioner according to the embodiment of the present application also has the above advantages, which are not described herein again.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims (9)

1. A quick connector for a split air conditioner comprises a male connector and a female connector,

the first end of the female joint is used for being in transitional connection with a connecting pipe of an air conditioner outdoor unit, a movable sleeve and a first elastic piece are arranged in the female joint, a central ejector rod is arranged in the movable sleeve and extends along the axial direction of the female joint, and a valve core is arranged at one end of the central ejector rod;

the first end of the male joint is used for being in transitional connection with a connecting pipe of an indoor unit of an air conditioner, the second end of the male joint is detachably connected with the second end of the female joint, a conical surface extending along the circumferential direction of the inner wall surface of the second end of the male joint is arranged on the inner wall surface of the second end of the male joint, a plug and a second elastic piece are arranged in the male joint, the plug is movably arranged in the male joint along the axial direction of the male joint, and the first end of the plug is stopped against the valve core when the male joint is connected with the female joint so as to conduct the male joint and the female joint;

the sealing device is characterized in that the first end of the plug is provided with an annular step part extending along the circumferential direction of the plug, a rubber sealing ring is sleeved on the annular step part and is pressed through a gasket, and the gasket is riveted and fixed to the end part of the plug.

2. The quick connector for a split type air conditioner according to claim 1, wherein the spacer is riveted to the blocking end portion by spinning.

3. The quick connector for a split type air conditioner according to claim 2, wherein the gasket is riveted at the blocking end portion by expansion.

4. The quick connector for a split type air conditioner according to claim 2, wherein the plug is a brass member formed integrally.

5. The quick coupler for a split type air conditioner according to claim 1, wherein the bottom surface of the annular step portion is provided with an annular groove extending in a circumferential direction thereof.

6. The quick coupler for a split type air conditioner according to claim 1, wherein the bottom surface of the annular step portion is provided with an annular protrusion extending in a circumferential direction thereof.

7. The quick coupling for a split type air conditioner according to claim 1, wherein the outer circumferential surface of the rubber sealing ring is an arc-shaped surface.

8. The quick coupling for the split air conditioner according to claim 1, wherein the rubber sealing ring is an HNBR material piece, and the hardness of the rubber sealing ring is 70-90 degrees Shore.

9. An air conditioner characterized by comprising the quick connector for a split air conditioner of any one of claims 1 to 8.

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