CN201289259Y

CN201289259Y - Fast joint

Info

Publication number: CN201289259Y
Application number: CNU2008201662733U
Authority: CN
Inventors: 邵金鹤
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-10-17
Filing date: 2008-10-17
Publication date: 2009-08-12
Anticipated expiration: 2018-10-17

Abstract

The utility model relates to a quick connector. The quick connector is improved on the basis of an original fixed connector, a movable connector, a connecting mechanism, a movable valve rod, a fixed valve rod, a movable sleeve, a sealing ring, and the like, i.e., a liquid filling opening is formed on the fixed connector, a valve core is installed in the liquid filling opening; and meanwhile, an installing seat with a mounting hole is also arranged on the fixed connector. Compared with the prior art, since the liquid filling opening and the valve core are additionally arranged on the fixed connector, after the pipeline is rapidly connected, the required refrigerant is conveniently fed to the device through the valve core by using the advantageous position of the quick connector, and the great convenience is provided for the future maintenance; and meanwhile, the quick connector can be fixed in the required position as required by means of the installing seat, so that not only the quick connector can be prevented from moving after the installation, but also the through hole on the installing seat can be utilized, and the quick connector is directly communicated to the required part, so that the other valves are not required to be installed, and the installation is simplified.

Description

Snap joint

Technical field

The utility model relates to a kind of snap joint, specifically refer to a kind of have valve module and make first pipeline terminal with the second pipeline end between form and seal the airproof snap joint that is communicated with and can gets loose.

Background technology

Snap joint is quick connection that is used for realizing between pipeline and the pipeline, in split-type air conditioner, indoor set is connected with refrigerant tubing between the off-premises station and has just adopted this snap joint, and present this snap joint has presented multiple version, but more common snap joint generally includes the anchor tip that has valve module respectively, moving joint and with the two bindiny mechanism that is connected as a body, wherein, first spring that ovable valve stem is installed in anchor tip, is arranged on first sealing ring of ovable valve stem head and makes the head of this ovable valve stem have overhanging trend all the time; Corresponding with above-mentioned ovable valve stem, as to have second sealing ring valve rod of deciding is installed in described moving joint simultaneously, and decide also to be with outside the valve rod movable sleeve that matches with described anchor tip and this movable sleeve had all the time second spring of the trend outside this moving joint that exposes at this, be structure " the airproof snap joint " of CN200943792Y has just disclosed as the Chinese patent notification number.During use, by bindiny mechanism anchor tip and moving joint are pulled to together, contract in the movable sleeve, valve module in the joint is opened, the ovable valve stem of deciding in valve rod and the anchor tip in the moving simultaneously joint is inconsistent, promote to contract in the ovable valve stem and the valve module of anchor tip is opened, thereby reach the purpose that two pipes are connected.

Obviously, above-mentioned this class snap joint can realize quick connection the between pipeline and the pipeline well.But when this snap joint was applied in refrigerant tubing, function singleness just seemed.This is because of the loss along with cold-producing medium in the use, usually needs to add cold-producing medium to equipment when safeguarding.Be to realize at present by in pipeline or equipment, offering filling opening.But because the difference of occasion is installed, the position of filling opening often is in the position that is not easy to safeguard.Simultaneously, the fluid flow direction in the above-mentioned snap joint generally is designed to linear pattern, and whole snap joint does not have fixed mechanism, it is little that the back restraining force is installed, sometimes still need to be installed on the pipeline by a valve, it is big therefore to have the back of the installation free degree, the defective that structure is also compact inadequately.

The utility model content

Technical problem underlying to be solved in the utility model is at above-mentioned prior art present situation, and a kind of quick connection that can not only realize between the pipeline is provided, and can realize again that cold-producing medium adds and the snap joint being convenient in the future safeguard.

Second technical problem to be solved in the utility model is at above-mentioned prior art present situation, and a kind of snap joint that is directly fixed on equipment and has the mounted configuration compactness is provided.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: this snap joint comprises anchor tip, moving joint and with the two bindiny mechanism that is connected as a body, wherein, first spring that ovable valve stem is installed in anchor tip, is arranged on first sealing ring of ovable valve stem head and makes the head of this ovable valve stem have overhanging trend all the time; Corresponding with above-mentioned ovable valve stem, as to have second sealing ring valve rod of deciding is installed in described moving joint simultaneously, and decide also to be with outside the valve rod movable sleeve that matches with the head of described anchor tip and this movable sleeve had all the time second spring of the trend outside this moving joint that exposes at this, it is characterized in that: described anchor tip is provided with filling opening, in described filling opening valve inside is installed.

In such scheme, described filling opening can be opened on the sidewall of anchor tip; Also can open on the sealing cap of anchor tip, sealing cap is arranged on the afterbody of anchor tip, and must have at the anchor tip sidewall and be used for the through hole of connecting pipe this moment, and such scheme is convenient to add cold-producing medium.

As preferred version, on described anchor tip, can also be provided with the mount pad of band installing hole, utilize mount pad anchor tip can be positioned on the required position, also just can realize the location of the snap joint after the conducting.

In above-mentioned preferred version, described mount pad preferably is positioned at described through hole, and has the through hole with the corresponding connection of described through hole on described mount pad, can also be connected with pipeline when realizing installing and fixing like this.

The afterbody of described ovable valve stem can design inner chamber, the outer peripheral face of this inner chamber is designed to the circle-shaped structure that is complementary with described anchor tip inwall, and have aperture on the sidewall of this inner chamber, so that the cold-producing medium that adds can successfully flow in the pipeline by this aperture.

In above-mentioned each scheme, the oral area of described filling opening preferably is provided with protective cap, with the protection valve inside.

Described ovable valve stem, decide to be provided with the keeper that mutual inserting connects on the corresponding end face of valve rod.This keeper can be corresponding reference column and detent; And reference column can be positioned on the described ovable valve stem, and detent can be arranged on to be decided on the valve rod.Also reference column can be arranged on and decide on the valve rod, and detent is arranged on the ovable valve stem.Make snap joint in turn on process, guarantee that each valve rod is coaxial mobile.

Compared with prior art, owing to set up filling opening and valve inside on the anchor tip of the present utility model, thereby after carrying out the quick connecting pipe road, can also utilize the vantage point of snap joint, in equipment, add required cold-producing medium easily by valve inside, thereby bring great convenience for maintenance in the future.Simultaneously by means of mount pad, the utility model can be fixed on the required position as required, so both prevented snap joint moving after installing, can utilize the through hole on the mount pad again, directly be communicated in snap joint on the desired area, so just need not to install other valve, and make installation oversimplify.

Description of drawings

Fig. 1 is that anchor tip docks structural representation under the conducting state among the utility model embodiment with moving joint;

Fig. 2 is the structural representation under anchor tip and the moving joint released state among the utility model embodiment;

Fig. 3 is the upward view of Fig. 1;

Fig. 4 be in 3 A-A to partial sectional view;

Fig. 5 is the partial sectional view of ovable valve stem among Fig. 1;

Fig. 6 is a partial sectional view of deciding valve rod among Fig. 1;

Fig. 7 is the right view of Fig. 6.

The specific embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

As depicted in figs. 1 and 2, this snap joint comprises anchor tip 1, moves joint 2 and with the two bindiny mechanism that is connected as a body (not showing), be separately installed with first valve module 4 and second valve module 5 in anchor tip 1 and the moving joint 2 in Fig. 1 and Fig. 2.Wherein, anchor tip 1 is the copper pipe that the front and back caliber does not wait, and promptly it is made up of the caliber less straight tube 11 and the bigger person in charge 12 of caliber, is provided with straight-tube shape seam 13 at the straight tube inner end; Be responsible for afterbody by the O RunddichtringO sealing cap 3 that is tightly connected, on this sealing cap 3, axially have filling opening 31, valve inside 7 is installed in filling opening, on the lateral wall of anchor tip 1 contiguous straight-tube shape seam 13, also have a through hole 14 simultaneously, to should the through hole one being shaped on mount pad 17, have the through hole 15 that is communicated in above-mentioned through hole 14 at the middle part of this mount pad, and on the mount pad 17 of these through hole 15 both sides, have installing hole 16, see also Fig. 3 and Fig. 4.

Above-mentioned first valve module 4 comprises ovable valve stem 41, first spring 42 and first sealing ring 43 again, ovable valve stem is positioned at the bigger person in charge of diameter 12, its afterbody design has inner chamber 411, as shown in Figure 5, the afterbody outer peripheral face is the circle-shaped structure that is complementary with the anchor tip inwall, and has radial hole 412 on the sidewall of inner chamber; Head surface at ovable valve stem has annular groove 413, is embedded with above-mentioned first sealing ring 43 in this annular groove 413.One end of described first spring 42 is positioned in the inner chamber 411 of ovable valve stem afterbody, and the inner face of the other end and sealing cap 3 offsets.When above-mentioned first spring 42 under nature, the head of ovable valve stem 41 and first sealing ring 43 thereof are positioned at straight-tube shape seam 13, see also Fig. 2, and first sealing ring 43 is tightly touched mutually with straight-tube shape seam 13 inwalls, and realize positiver sealing.

Above-mentioned moving joint 2 also adopts copper pipe, being equipped with in this moving joint can be along the movable sleeve 6 of its inner wall sealing slip, the port design of this movable sleeve 6 becomes straight-tube shape choke 61, and forming an outer step with end thereafter, this choke can insert also can be inconsistent with straight-tube shape seam 13 end faces in the straight tube 11 of anchor tip.And the straight tube 11 of anchor tip 1 can stretch in the moving joint 2, and is inconsistent with the outer step on the movable sleeve 6.Described second valve module 5 comprise be positioned at movable sleeve 6 decide valve rod 51, second spring 52 and second sealing ring 53, wherein, the head of deciding valve rod 51 adopts the piston-like structure, see also Fig. 6 and Fig. 7, in this head surface design of deciding valve rod 51 seal groove 511 that can hold second sealing ring is arranged, the afterbody one of deciding valve rod 51 is shaped on centring ring 512, and outside deciding valve rod, be with above-mentioned second spring 52, one end and the movable sleeve 6 of this second spring 52 offset, movable sleeve is had all the time expose to the trend of moving outside the joint 2, the other end of second spring 52 is then inconsistent with centring ring 512, the external diameter of centring ring 512 is designed to and moves the circle-shaped structure that joint 2 inwalls match, and on this centring ring 512, be provided with run through it before, four axial holes 513 of rear end face; The centring ring both sides respectively with moving inner nosepiece wall on shoulder and the circlip 9 that is embedded on moving inner nosepiece wall inconsistent, decide valve rod to be fixed in.When second spring 52 under nature, decide the straight-tube shape choke 61 that valve rod 51 heads and second sealing ring 53 all are positioned at movable sleeve, make the closely contact mutually of second sealing ring 53 and straight-tube shape choke 61 inwalls, see also Fig. 2.

In the present embodiment, ovable valve stem, decide also to be provided with on the corresponding end face of valve rod the keeper that mutual inserting connects.This keeper adopts corresponding reference column and detent, and here, this reference column 414 is positioned on the ovable valve stem, and detent 514 is arranged on and describedly decides on the valve rod 51.

In the present embodiment, bindiny mechanism can see also Fig. 3 for existing conventional spanner 10, rocking arm 20 structures, and one is shaped on reference column 18 outside anchor tip 1, one is shaped on protruding circle 21 outside moving joint 2, and for spanner and rocking arm location, its operating principle just no longer elaborates with respectively.

During installation, anchor tip 1 is fixed on the desired area, and the through hole 15 on the mount pad is connected with the oral area of first pipeline 30 by the installing hole on the mount pad 17 16.During use, pull spanner 10, make joint 2 to anchor tip 1 side shifting, drive thereupon and decide valve rod to the ovable valve stem side shifting, and promote ovable valve stem, compress first spring, the straight tube of anchor tip promotes movable sleeve simultaneously, makes in the movable sleeve and contracts, and compress second spring.This moment, reference column stretched in the locating slot, made ovable valve stem, decided valve rod and move together, was in and opened conducting state, as shown in Figure 1.Like this, with decide joint first pipeline 30 that links to each other and second pipeline 40 that links to each other with moving joint in the arrow flux and flow direction of gas by as shown in Figure 3 circulate.

When needs add cold-producing medium, can open protective cap, inject cold-producing medium by valve inside, the cold-producing medium of interpolation imports in the pipeline by 412 backs of the aperture on the ovable valve stem.

Claims

1, a kind of snap joint, comprise anchor tip (1), moving joint (2) and with the two bindiny mechanism that is connected as a body, wherein, first spring (42) that ovable valve stem (41) is installed in anchor tip, is arranged on first sealing ring (43) of ovable valve stem head and makes the head of this ovable valve stem have overhanging trend all the time; In described moving joint, be equipped with simultaneously corresponding with above-mentioned ovable valve stem, have second sealing ring (53) decide valve rod (51), and decide also to be with outside the valve rod movable sleeve (6) that matches with the head of described anchor tip and this movable sleeve had all the time second spring (52) of the trend outside this moving joint that exposes at this, it is characterized in that: described anchor tip is provided with filling opening (31), and valve inside (7) is installed in described filling opening.

2, snap joint according to claim 1, it is characterized in that: the afterbody of described anchor tip (1) is provided with sealing cap (3), described filling opening (31) is positioned on this sealing cap (3), and has on described anchor tip (1) sidewall and be used for the through hole (14) of connecting pipe.

3, snap joint according to claim 2 is characterized in that: the mount pad (17) that also is provided with band installing hole (16) on the described anchor tip.

4, snap joint according to claim 3 is characterized in that: described mount pad (17) is positioned at described through hole (14) to be located, and has the through hole (16) with the corresponding connection of described through hole (14) on described mount pad.

5, snap joint according to claim 4, it is characterized in that: the afterbody design of described ovable valve stem (41) has inner chamber (411), the outer peripheral face of this inner chamber is designed to the circle-shaped structure that is complementary with described anchor tip (1) inwall, and has aperture (412) on the sidewall of this inner chamber.

6, according to the described snap joint of the arbitrary claim of claim 1 to 5, it is characterized in that: the oral area of described filling opening (31) is provided with protective cap (8).

7, according to the described snap joint of the arbitrary claim of claim 1 to 5, it is characterized in that: described ovable valve stem, the corresponding end face of deciding valve rod are provided with the keeper that mutual inserting connects.

8, snap joint according to claim 7 is characterized in that: described keeper is corresponding reference column (414) and detent (514).