CN203068015U - Quick joint - Google Patents

Abstract

The utility model discloses a quick joint which comprises a first joint and a second joint. The first joint and the second joint are connected in a buckling mode. An annular end body is formed at the position of an end opening of the first joint, a first slope is formed on the inner wall of the annular end body, a first annular clamping body is formed on the inner side of the annular end body, and a second slope is formed on the outer side of the end of the first annular clamping body. A second annular clamping body is formed on the end portion of the second joint, a mandril is arranged in the second annular clamping body, a piston is sleeved outside the mandril, an annular rubber layer is arranged on the piston, and the annular rubber layer and the end portion of the first clamping body are arranged in an opposite matching mode. A groove is formed in the root portion outside the second annular clamping body, and a sealing ring is arranged in the groove. When the first joint and the second joint are connected together, the end portion of the first clamping body abuts against the annular rubber layer to form a first layer seal, the second slope abuts against the side corner edge of the end portion of the second clamping body to form a second layer seal, and the first slope and the sealing ring form a third layer seal. The quick joint is simple and exquisite in structure, and the sealing property of the quick joint is greatly improved in connecting use.

Description

Rapid pipe joint

Technical field

The utility model relates to the component in the air-conditioning system, especially relates to a kind of rapid pipe joint.

Background technique

Rapid pipe joint, when tool joint pin and female joint are connected to each other, because the position sealing that is connected to each other is not enough, cause gas leakage, because both sides are sealed into soft seal and hard sealing between the two, when first connection contacted, contact was tight, formed to seal, hard sealing exists not enough, form and seal needed dynamics for the second time greater than the sealing that forms for the first time, so influence follow-up tightness, this also is one of reason of gas leakage.

So rapid pipe joint in the market only can't be satisfied existing seal request by such sealing configuration, haves much room for improvement.

In view of this, the inventor has done deep research, and by feat of the experience of being engaged in relevant industries for many years and practice, design a kind of rapid pipe joint, can solve deficiency of the prior art, exquisiteness simple in structure, manufacturing efficiency improves greatly, and cost of production reduces greatly, and this case produces thus.

The model utility content

The purpose of this utility model is to provide a kind of rapid pipe joint, can solve deficiency of the prior art, exquisiteness simple in structure, and manufacturing efficiency improves greatly, and cost of production reduces greatly.

To achieve these goals, the technical solution of the utility model is as follows:

Rapid pipe joint, comprise first joint and second joint that both buckles connect, it is characterized in that: the port at first joint forms the annular end body, inwall at the annular end body forms first inclined-plane, form the annular first card body in the inboard of annular end body, form second inclined-plane in the outside, end of the annular first card body;

Form the annular second card body in the end of second joint, in the annular second card body, be provided with push rod, an outside sheathed piston of this push rod, this piston is provided with the ring-shaped rubber layer, the end relative engagement of described ring-shaped rubber layer and the first card body arranges, outside root at the annular second card body forms groove, and seal ring is set in groove;

When first joint and second joint connected, the end of the first card body offseted with the ring-shaped rubber layer and forms the first layer sealing, and the side angle edge of second inclined-plane and the second card end of body formation second layer that offsets seals, and it is the three-layer sealed that first inclined-plane and seal ring form.

Above-mentioned setting, first layer is sealed into soft seal, and repeatedly contact still can form sealing, and second layer sealing is hard sealing, further improves sealability, plays the effect of locking and positioning simultaneously; The three-layer sealed, is soft seal, and under the prerequisite of overall sealing performance that can be in further guaranteeing the rapid pipe joint connection procedure, no longer needing to connect strength for the second time must be greater than primary strength.

First layer sealing, the end of the first card body and the ring-shaped rubber layer formation sealing layer that offsets; Second layer sealing, second inclined-plane and the side angle edge of the second card end of body offset and form the line face and contact, dynamics appropriate just can, and do not need dynamics more big.The three-layer sealed, is that first inclined-plane and seal ring form, and both contact tightness and are guaranteed.

As from the foregoing, the utility model in actual use, sealability improves greatly, two-layer soft seal and one deck seal firmly, guarantee excellent sealing performance.

The beneficial effects of the utility model: the utility model exquisiteness simple in structure, manufacturing efficiency improves greatly, and cost of production reduces greatly.

In order further to explain the technical solution of the utility model, the utility model is elaborated below by specific embodiment.

Description of drawings

Fig. 1 is structural representation of the present utility model.

Embodiment

As shown in Figure 1, the utility model relates to a kind of rapid pipe joint, comprise first joint 1 and second joint 2 that both buckles connect, it is characterized in that: the port at first joint 1 forms annular end body 3, inwall at annular end body 3 forms first inclined-plane 4, form the annular first card body 5 in the inboard of annular end body 3, form second inclined-plane 7 in 6 outsides, end of the annular first card body 5;

Form the annular second card body 8 in the end of second joint 2, in the annular second card body 8, be provided with push rod 9, an outside sheathed piston 10 of this push rod 9, this piston 10 is provided with ring-shaped rubber layer 11, the end 6 relative engagement settings of described ring-shaped rubber layer 11 and the first card body 5, outside root at the annular second card body 8 forms groove, and seal ring 12 is set in groove;

When first joint 1 and second joint 2 connect, the end 6 of the first card body 5 offsets with ring-shaped rubber layer 11 and forms the first layer sealing, the side angle edge of second inclined-plane 7 and second card body 8 ends offsets and forms second layer sealing, and it is the three-layer sealed that first inclined-plane 4 and seal ring 12 form.

As from the foregoing, the utility model exquisiteness simple in structure, manufacturing efficiency improves greatly, and cost of production reduces greatly.

The above only is an embodiment of the present utility model, is not the restriction to this case design, and all equivalent variations of doing according to the design key of this case all fall into the protection domain of this case.

Claims (1)

1. rapid pipe joint, comprise first joint and second joint that both buckles connect, it is characterized in that: the port at first joint forms the annular end body, inwall at the annular end body forms first inclined-plane, form the annular first card body in the inboard of annular end body, form second inclined-plane in the outside, end of the annular first card body;

Form the annular second card body in the end of second joint, in the annular second card body, be provided with push rod, an outside sheathed piston of this push rod, this piston is provided with the ring-shaped rubber layer, the end relative engagement of described ring-shaped rubber layer and the first card body arranges, outside root at the annular second card body forms groove, and seal ring is set in groove;

When first joint and second joint connected, the end of the first card body offseted with the ring-shaped rubber layer and forms the first layer sealing, and the side angle edge of second inclined-plane and the second card end of body formation second layer that offsets seals, and it is the three-layer sealed that first inclined-plane and seal ring form.

Images