CN205065092U - Connection structure of air conditioner pipeline and condenser - Google Patents

Abstract

The utility model relates to the technical field of pipeline connection, and discloses a connection structure between an air conditioner pipeline and a condenser, including a connection head and a connection seat, a connection sleeve is provided in the connection seat, and sealing cone surfaces are respectively provided at both ends of the connection sleeve , the outer end of the condenser pipe extends from the bottom center of the connecting seat into the connecting seat, the outer end of the condenser pipe extends outward to form a connecting flange, and the end of the connecting sleeve close to the condenser pipe extends outward to form a pressing piece , the outer circumference of the pressing piece is threadedly connected with the inner wall of the connecting seat, one end of the connecting sleeve is sealed with the conical surface of the condenser pipeline end, and an O-ring is provided at the conical surface seal; the end of the air conditioning pipeline extends outward to form a connecting lip On the other hand, a bearing is provided between the outside of the air-conditioning pipeline and the connector, an O-ring is provided at the tapered surface seal, and a closed isolation cavity is formed between the outside of the connector sleeve and the inner wall of the connector. Therefore, the utility model has the beneficial effects of reliable connection, good sealing performance, and effective prevention of refrigerant leakage.

Description

Connection structure of air conditioning pipeline and condenser

technical field

The utility model relates to the technical field of connection of air-conditioning pipelines, in particular to a connection structure between an air-conditioning pipeline and a condenser.

Background technique

At present, the connection between the air-conditioning pipeline and the condenser is usually connected by bolts, that is, there is a pipe joint at one end of the air-conditioning pipeline, and a connecting head is provided at the condenser, and the pipe joint is inserted into the connecting head and then tightened with bolts. They are all connected by one bolt on one side, so that during the tightening process of the bolt, the two sides of the sealing ring in the pipe joint will be squeezed differently, resulting in different sealing compression, and the sealing performance on one side will be reduced, resulting in refrigerant leakage.

Chinese patent authorization announcement number: CN202195193U, authorized announcement date April 18, 2012, discloses a flange connection structure of automotive air-conditioning pipeline joints, including pipelines and flanges, the pipeline and the connector are integrally formed, and the pipeline Through the round hole on the flange, the inner surface of the round hole is provided with a plurality of raised toothed walls, the pipeline and the toothed wall are riveted together, the inner surface of the round hole is stepped, and the toothed wall is its diameter The inner surface is small, and the protrusions on the toothed wall are evenly distributed on the inner surface. The end forming ribs are arranged on the pipeline, and the end forming ribs cooperate with the inner surface with a larger diameter on the round hole. Its disadvantage is that there is only one connection hole on the flange, and it is connected on one side, which leads to different extrusion amounts on both sides of the sealing ring, the sealing performance of the sealing ring is reduced, and it is easy to leak.

Utility model content

In order to solve the above-mentioned problems in the prior art, the utility model provides a connection structure between an air-conditioning pipeline and a condenser, which is reliable in connection, good in sealing performance, and can effectively prevent leakage of refrigerant.

In order to achieve the above object, the utility model adopts the following technical solutions:

A connection structure between an air-conditioning pipeline and a condenser, comprising a connecting head arranged at the connecting end of the air-conditioning pipeline and a connecting seat arranged on the condenser pipeline, the connecting seat is provided with a connecting sleeve, and the two ends of the connecting sleeve are respectively There is a sealing tapered surface, the outer end of the condenser pipeline extends from the bottom center of the connecting seat into the connecting seat, the outer end of the condenser pipeline extends outward to form a connecting flange, and the connecting sleeve is close to the condenser pipeline One end of one end extends outward to form a pressing piece, the outer circumference of the pressing piece is threadedly connected with the inner wall of the connecting seat, one end of the connecting sleeve is sealed with the conical surface at the end of the condenser pipeline, and an O-ring is provided at the sealing part of the conical surface; the said One end of the air-conditioning pipeline extends into the connector and extends outward to form a connecting lip. There is a bearing between the outside of the air-conditioning pipeline and the connector. The conical surface of the end is sealed, and an O-ring is arranged at the conical surface sealing place, and a closed isolation cavity is formed between the outer side of the connecting sleeve and the inner wall of the connecting head.

The connecting head and the connecting seat are only used for connection. The connection between the air conditioning pipeline and the condenser pipeline is directly sealed and docked through the connecting sleeve. The tapered surfaces at both ends of the connecting sleeve are sealed with O-rings. A closed isolation cavity is formed between the heads to reduce heat transfer and prevent the refrigerant in the air conditioning pipeline from heat transfer between the connectors and the connection seat and the outside world, and even if the refrigerant leaks at both ends of the connection sleeve, the refrigerant enters the isolation cavity and does not It will prevent the stent from leaking to the outside world and play a double leak-proof effect.

As a preference, a support ring is provided between the end surface of the bearing and the connecting lip, one end of the support ring is attached to the connecting lip, and the other end of the support ring is only in contact with the outer ring of the bearing for support. A locating ring is also provided on the outside of the connecting lip, and the locating ring is threadedly connected with the inner wall of the connecting head. Since the air-conditioning pipeline is relatively long, the air-conditioning pipeline itself does not need to be rotated during screw connection, and the connection can be realized only through the rotation of the connecting seat, and the connection is more convenient.

As a preference, the connecting end of the connecting head is provided with an annular groove, and the connecting end of the connecting seat is provided with an annular boss matched with the annular groove. When the connecting head is screwed to the connecting seat, the annular boss The platform snaps into the annular groove.

Preferably, the section of the annular groove and the annular boss is trapezoidal, and the bottom of the annular groove is provided with an annular sealing groove, and a sealing ring is arranged in the annular sealing groove.

Therefore, the utility model has the beneficial effects of reliable connection, good sealing performance, and effective prevention of refrigerant leakage.

Description of drawings

Fig. 1 is a kind of structural representation of the utility model.

Fig. 2 is a schematic diagram of the internal structure of the utility model.

In the figure: air conditioner pipeline 1 connector 2 condenser pipeline 3 connecting seat 4 connecting sleeve 5 O-ring 6 bearing 7 supporting ring 8 positioning ring 9 connecting lip 10 isolation cavity 11 annular groove 12 annular boss 13 sealing ring 14 condensation The device 15 is connected to the flange 30 and the sealing tapered surface 50 to press the tablet 51 .

detailed description

Below in conjunction with accompanying drawing and specific embodiment the utility model is further described:

As shown in Fig. 1 and Fig. 2, a connection structure between an air-conditioning pipeline and a condenser includes a connector 2 arranged at the connecting end of the air-conditioning pipeline 1 and a connecting seat 4 arranged on the condenser pipeline 3, and the condenser pipeline 3 is connected from the condenser 15, the connecting sleeve 4 is provided with a connecting sleeve 5, and the two ends of the connecting sleeve are respectively provided with a sealing tapered surface 50, and the outer end of the condenser pipeline 3 extends into the connecting base from the bottom center of the connecting base, and the condenser The outer end of the pipeline extends outward to form a connecting flange 30, and the end of the connecting sleeve 5 close to the condenser pipeline extends outward to form a pressing piece 51. It is sealed with the conical surface at the end of the condenser pipeline, and an O-ring 6 is provided at the conical surface seal; one end of the air-conditioning pipeline 1 extends into the connector and extends outward to form a connecting lip 10, and the outer side of the air-conditioning pipeline and the connector There is a bearing 7 between them, and a support ring 8 is provided between the end face of the bearing and the connecting lip. One end of the supporting ring 8 fits the connecting lip, and the other end of the supporting ring is only in contact with the outer ring of the bearing. The connecting lip The outer side of 10 is also provided with a positioning ring 9, and the positioning ring is threadedly connected with the inner wall of the connecting head. When the connecting head 2 is threadedly connected with the connecting seat 4, the outer end of the connecting sleeve 5 is sealed with the conical surface at the end of the air-conditioning pipeline, and the conical surface An O-ring is provided at the sealing part, and a closed isolation cavity 11 is formed between the outside of the connecting sleeve 5 and the inner wall of the connecting head.

The connecting end of the connector 2 is provided with an annular groove 12, and the connecting end of the connecting seat is provided with an annular boss 13 matched with the annular groove. Groove, ring sealing ring 14 is arranged in the ring seal groove, when the connector and the connecting seat are threaded, the ring boss snaps into the ring groove, and the end face of the ring boss contacts and seals with the seal ring 14.

The connecting head and the connecting seat are only used for connection. The connection between the air conditioning pipeline and the condenser pipeline is directly sealed and docked through the connecting sleeve. The tapered surfaces at both ends of the connecting sleeve are sealed with O-rings. A closed isolation cavity is formed between the heads to reduce heat transfer and prevent the refrigerant in the air conditioning pipeline from heat transfer between the connectors and the connection seat and the outside world, and even if the refrigerant leaks at both ends of the connection sleeve, the refrigerant enters the isolation cavity and does not It will prevent the stent from leaking to the outside world and play a double leak-proof effect.

Claims (4)

1. A connection structure between an air-conditioning pipeline and a condenser, comprising a connector located at the connecting end of the air-conditioning pipeline and a connecting seat located on the condenser pipeline, characterized in that a connecting sleeve is provided in the described connecting seat, The two ends of the connecting sleeve are respectively provided with sealing tapered surfaces, the outer end of the condenser pipeline extends into the connecting seat from the bottom center of the connecting seat, and the outer end of the condenser pipeline extends outward to form a connecting flange. The end of the sleeve close to the condenser pipeline extends outward to form a pressing piece, the outer circumference of the pressing piece is threadedly connected with the inner wall of the connecting seat, one end of the connecting sleeve is sealed with the conical surface at the end of the condenser pipeline, and the sealing part of the conical surface is provided with O Shaped ring; one end of the air-conditioning pipeline extends into the connector and extends outward to form a connecting lip. A bearing is provided between the outside of the air-conditioning pipeline and the connector. When the connector is threadedly connected to the connecting seat, the The outer end is sealed with the conical surface at the end of the air-conditioning pipeline, and an O-ring is arranged at the conical surface sealing place, and a closed isolation cavity is formed between the outer side of the connecting sleeve and the inner wall of the connecting head. 2. The connection structure between the air-conditioning pipeline and the condenser according to claim 1, wherein a supporting ring is provided between the end face of the bearing and the connecting lip, and one end of the supporting ring is connected to the connecting lip The other end of the support ring is only in contact with the outer ring of the bearing for support, and a positioning ring is also provided on the outside of the connecting lip, and the positioning ring is threadedly connected with the inner wall of the connecting head. 3. The connection structure between the air-conditioning pipeline and the condenser according to claim 1 or 2, wherein the connecting end of the connecting head is provided with an annular groove, and the connecting end of the connecting seat is provided with an annular groove. The groove fits the annular boss, and when the connecting head is screwed to the connecting seat, the said annular boss snaps into the annular groove. 4. The connection structure between the air-conditioning pipeline and the condenser according to claim 3, wherein the section of the annular groove and the annular boss is a trapezoidal structure, and the bottom of the annular groove is also provided with an annular seal groove, and a sealing ring is arranged in the annular sealing groove.