CN201021912Y

CN201021912Y - Metal pipe automatic high pressure charging water inspection device

Info

Publication number: CN201021912Y
Application number: CNU2007201413473U
Authority: CN
Inventors: 左铁军; 戴法滨; 孙德兴; 杨训; 尹衍升; 赵越
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-03-19
Filing date: 2007-03-19
Publication date: 2008-02-13
Anticipated expiration: 2017-03-19

Abstract

The utility model relates to a metal pipe automatic high-pressure aerating water detecting device, which comprises a positioning pipe, a gasket, a mouth-blocking inner taper sleeve, a locking sleeve and a sealing briquette, wherein the cone angles of the two ends of the locking sleeve are smaller than the inner cone angle of the mouth-locking inner taper sleeve. And thereby, when the mouth-locking taper sleeve is pressed by the gasket, the mouth-locking taper sleeve will press and squeeze the locking sleeve to lock a copper-aluminum connecting pipe work-piece to guarantee that the work-piece does not fall off in the state of high-pressure aeration. The utility model replaces the prior method of rotating a handle to lock and seal by the method of using a pneumatic component as power to lock and seal, which reduces labor intensity. With the novel design of the opening of a gas tube, the utility model improves the pressure resistant ability of the opening of the gas pipe and prevents the work-piece from dropping off.

Description

Metal Pipe Automatic High Pressure Aeration Water Examine Device

Technical field

The present utility model relates to a kind of mechanical hook-up, especially idle call Cu-Al connecting pipe that metal tube compactness is carried out the water inspection.

Background technology

Cold-producing medium is the operation material that carries out refrigeration cycle in refrigerating plant, in the circulating pipe system of cold-producing medium as year cold medium, refrigeration is relevant with the quantity of cold-producing medium, cold-producing medium recycles in system, the seepage of any trace, all will cause the internal system cold-producing medium to scatter and disappear, and influence the refrigeration of refrigeration product, finally will make refrigeration product forfeiture refrigeration performance.So guarantee that the compactness of pipe system is extremely important.For the copper aluminium pipe that is connected, its weld seam or aluminum pipe, the factors of carrying out because of technology such as bad or impurity exist some small penetrability hole or defectives sometimes.If pipeline inside is full of gases at high pressure, and take the water inspection, the gas that defect area is spilt forms bubble in water, thereby the personnel that are verified find and reject.With copper aluminium air conditioner connecting pipe is example, for guaranteeing copper aluminium air conditioner connecting pipe quality, must carry out high pressure compactness and detect, and the pipeline charge pressure is greater than 2.0MPa during the inspection of high pressure compactness water.

At present, there are two kinds of aerating pipe ports can realize air conditioner connecting pipe is inflated, to realize water inspection purpose, one, the gloomy valve of the Chinese utilizes the connecting rod effect as aerating pipe port, stirs the block rubber that handle will be enclosed in around the pipeline and compresses, behind the sealing pipeline pipeline is inflated, its shortcoming is that labour intensity is big, charge pressure can not surpass 1.0MPa, the technology difficulty of implementation is big; Second method is to adopt one group of coarse pitch manual lock instrument, to be enclosed in by turning handle that block rubber compresses around the pipeline, realization is to the sealing of pipeline, then pipeline is inflated, its shortcoming is that labour intensity is big, productive temp slow, exists and pass through potential safety hazard, charge pressure and detection time manual control, be prone to omission, yield poorly and to satisfy production requirement.Above-mentioned two kinds of methods all exist is examined the caducous potential safety hazard of pipe fitting.

Metal Pipe Automatic High Pressure Aeration Water Examine Device described in the utility model can remedy above-mentioned the deficiencies in the prior art.

Summary of the invention

The technical problems to be solved in the utility model provides a kind ofly can carry out metal tube water inspection automatically and can prevent the device that metal tube comes off in testing process.

The utility model addresses the above problem like this: vertebra cover, lock sleeve in sealing gasket, the fore shaft are installed in the positioning pipe, and sealed briquette inserts positioning pipe and closely contacts with sealing gasket, the activity vertically of sealed briquette, sealing gasket, fore shaft inner conical drogue.Wherein sealing gasket closely contacts with the positioning pipe inwall, seals; The two ends cone angle of lock sleeve is bigger than the interior coning angle of fore shaft inner conical drogue; Briquetting middle part, location has inflatable chamber.

In above-mentioned water checking device, constitute the pipeline locking member with lock sleeve, fore shaft inner conical drogue, positioning pipe, the two ends cone angle of lock sleeve is bigger than the interior coning angle of fore shaft inner conical drogue.When the fore shaft inner conical drogue is subjected to the sealing gasket extruding, will oppress, push lock sleeve locking metal tube workpiece like this.Lock sleeve adopts the two halves symmetrical structure, wherein the external diameter of the internal diameter of lock sleeve and metal tube one end is gapped under the normality, is convenient to the insertion of pipe fitting, after pipe fitting installs, start cylinder, push sealed briquette to sealing gasket and fore shaft inner conical drogue, sealing gasket plays sealing function, and the fore shaft inner conical drogue stressed after, force lock sleeve to merge, so that the locking workpiece guarantees that metal tube does not come off under high-pressure aerated state.

The utility model is with the method for traditional turning handle lock sealing, and changing into the pneumatic element is the power lock tightening seal, to reduce labour intensity; By the innovative design to aerating pipe port, pipeline is locked more firmly, therefore, improves the voltage endurance capability of aerating pipe port and prevents that workpiece from coming off.By high-pressure aerated water checking device, can realize that many metal tubes detect, make inflation pressing time, charge pressure value to determine that technological requirement puts in place simultaneously, the metal tube that guarantees to dispatch from the factory does not have leakage failure, has improved processing safety simultaneously.

Lock sleeve can be to adopt the two hemihedry split structures that cut from the centre, also can be to adopt resilient material to cut the integrative-structure that center pit is only opened one tensioner groove from the centre;

The cone structure of fore shaft inner conical drogue, lock sleeve can be the right cone body, also can be that male and female cooperates beveled structure and other shapes that stud with inside groove.

Description of drawings

Automatic high pressure gas-charged water checking device when Fig. 1 detects Cu-Al connecting pipe

The B-B cut-open view of Fig. 2 Fig. 1, lock sleeve adopts the two hemihedry split structures that cut from the centre

Fig. 3 fore shaft inner conical drogue, lock sleeve angle cooperate synoptic diagram

Fig. 4 lock sleeve adopts resilient material to cut the right view that center pit is only opened the integrative-structure of one tensioner groove from the centre

Wherein: sealed briquette 1, positioning pipe 2, sealing gasket 3, connecting rod 4, fore shaft inner conical drogue 5, lock sleeve 6, copper pipe 7, pad 8, aluminum pipe 9, high pressure pore A.

Embodiment

With reference to Fig. 1, the embodiment of Metal Pipe Automatic High Pressure Aeration Water Examine Device described in the utility model is as follows, is example to detect Cu-Al connecting pipe:

Vertebra cover 5, lock sleeve 6 in sealing gasket 3, the fore shaft are installed in the positioning pipe 2, and sealed briquette 1 inserts positioning pipe 2 and closely contacts with sealing gasket 3, the activity vertically of sealed briquette 1, sealing gasket 3, fore shaft inner conical drogue 5.Wherein sealing gasket 3 closely contacts with positioning pipe 2 inwalls, seals, and briquetting middle part, location has inflatable chamber.

In above-mentioned water checking device, constitute the pipeline locking member with lock sleeve 6, fore shaft inner conical drogue 5, positioning pipe, as shown in Figure 2, the two ends cone angle beta of lock sleeve 6 is bigger than fore shaft inner conical drogue ξ, when fore shaft inner conical drogue 5 is subjected to sealing gasket 3 extruding, will oppress, push lock sleeve 6 locking Cu-Al connecting pipe workpiece like this.

During concrete the application, carry out as follows:

1, use a pair of water checking device, the Cu-Al connecting pipe two ends are placed in.Wherein there is not high pressure pore A on the sealed briquette 1 of the water checking device of an end.The copper pipe at Cu-Al connecting pipe two ends is inserted respectively in the seal assembly of automatic high pressure gas-charged water checking device, make the end points of copper pipe 7 enter into the sealed briquette 1 of high pressure pore A, outside solder joint 8, aluminum pipe 9 should be exposed to.

2, start cylinder and form power F, connecting rod 4 displacements, sealed briquette 1 moves to right, and sealing gasket 3 is realized copper pipe 7 outer wall sealing functions; Be subjected to 4 displacements of F power effect connecting rod, fore shaft inner conical drogue 5 is pressed to lock sleeve 6, and lock sleeve 6 is compressed distortion locking copper pipe 7, constitutes locking function; Lock sleeve 6 adopts the two hemihedry split structures that cut from the centre in the present embodiment;

3, pipeline charges into gases at high pressure by high pressure pore A automatically, by mechanical hook-up automatic high pressure gas-charged water checking device and Cu-Al connecting pipe is fallen in the water, and whether observe in the water has unusual bubble to emerge from weld seam or pipeline;

4, finish detection after, by mechanical hook-up automatic high pressure gas-charged water checking device and Cu-Al connecting pipe are mentioned the disengaging water surface;

5, emptying automatic high pressure gas-charged water checking device and Cu-Al connecting pipe inner high voltage gas

6, cancel F power, extract copper pipe 7 out.

Automatic high pressure gas-charged water checking device can be one group, also can be many groups, and quantity is not limit.If use many group water checking devices, then can a lot inspection, production efficiency further is provided.

Zu He the utility model thus, its labour intensity is low, simplify working process, loss is low, production efficiency is high, and the Cu-Al connecting pipe that can guarantee detect quality.

The utility model not only can be used for detecting Cu-Al connecting pipe, also can detect copper pipe, aluminum pipe and other metal tubes simultaneously, all can obtain good effect.

The present invention describes with reference to drawings and Examples, but protection domain is not limited thereto, and has those of ordinary skill and can pass through simple conversion in the technology of the present invention scope, and obtain the same technique effect of the present invention, equally in protection scope of the present invention.

Claims

1. Metal Pipe Automatic High Pressure Aeration Water Examine Device, it is characterized in that being equipped with in the positioning pipe vertebra cover, lock sleeve in sealing gasket, the fore shaft, sealed briquette inserts positioning pipe and closely contacts with sealing gasket, the activity vertically of location briquetting, sealing gasket, fore shaft inner conical drogue, wherein sealing gasket closely contacts with the positioning pipe inwall, the two ends cone angle of lock sleeve is bigger than the interior coning angle on fore shaft inner conical drogue and the positioning pipe, has the high pressure pore on the briquetting of location, and the middle part has inflatable chamber.

2. a kind of Metal Pipe Automatic High Pressure Aeration Water Examine Device as claimed in claim 1 is characterized in that described lock sleeve adopts the two hemihedry split structures that cut from the centre.

3. a kind of Metal Pipe Automatic High Pressure Aeration Water Examine Device as claimed in claim 1 is characterized in that described lock sleeve is to adopt resilient material to cut the integrative-structure that center pit is only opened one tensioner groove from the centre.

4. as claim 1,2 or 3 described a kind of Metal Pipe Automatic High Pressure Aeration Water Examine Devices, the cone structure that it is characterized in that described fore shaft inner conical drogue, lock sleeve is the right cone body.

5. as claim 1,2 or 3 described a kind of Metal Pipe Automatic High Pressure Aeration Water Examine Devices, the cone structure that it is characterized in that described fore shaft inner conical drogue, lock sleeve is that male and female cooperates the beveled structure that studs with inside groove.