CN206513964U

CN206513964U - Bellows ferrule fitting

Info

Publication number: CN206513964U
Application number: CN201720223633.8U
Authority: CN
Inventors: 徐智
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-03-08
Filing date: 2017-03-08
Publication date: 2017-09-22
Anticipated expiration: 2027-03-08

Abstract

The utility model discloses bellows ferrule fitting, including the sealing ring and locking nut for being socketed copper pipe, also include the cutting ferrule body for being used to be socketed copper pipe, cutting ferrule body includes middle part and is provided with the bellows of outer ripple and is symmetrically arranged on the corrugated pipe connector at bellows two ends；Corrugated pipe connector is provided with the external screw thread for being used for being threadedly coupled with locking nut；Sealing ring is arranged between corrugated pipe connector and locking nut；One end that bellows is in contact with sealing ring is that sealing ring can be caught in the hatch frame in bellows；Corrugated pipe connector one end connect relative with locking nut is provided with the hatch frame matched with the hatch frame of bellows.The utility model is converted to flexible connection by traditional being rigidly connected, and the connection absorbs copper pipe and produces the deformation quantity expanded with heat and contract with cold well, it is ensured that the stability of a system in heat collector use；Ensureing simple in construction, it is with low cost on the basis of, reduce the workload of installation and the follow-up maintenance of equipment.

Description

Bellows ferrule fitting

Technical field

The utility model is related to mechanical field, and in particular to bellows ferrule fitting.

Background technology

Connection on the market between flat-plate solar collector plate at present, all using traditional copper ferrule fitting.Traditional Copper ferrule fitting is connected as between rigid connection, collector plate in the environment of temperature change, and rigid connection can not absorb heat expansion The deflection of shrinkage, long-term work easily influences the sealing stability of connection.Worked in the big environment of northern day and night temperature, it is this Because seal break-off causes fluid leakage in collecting plate especially prominent.

Utility model content

In view of the above-mentioned problems, the ripple of certain deflection can be born using flexible connection the utility model proposes one kind Pipe clamp bell and spigot joint.

The technical solution of the utility model is：A kind of bellows ferrule fitting, including for be socketed copper pipe sealing ring and Locking nut, in addition to for being socketed the cutting ferrule body of copper pipe, the cutting ferrule body includes bellows of the middle part provided with outer ripple and right The corrugated pipe connector for being arranged on the bellows two ends claimed；The corrugated pipe connector, which is provided with, to be used for and the locking nut screw thread The external screw thread of connection；The sealing ring is arranged between the corrugated pipe connector and the locking nut；The bellows and institute State one end that sealing ring is in contact the sealing ring can be caught in the hatch frame in the bellows；The corrugated pipe connector One end connect relative with the locking nut is provided with the hatch frame matched with the hatch frame of the bellows.

By this scheme, copper pipe is inserted in special bellows, sealing ring is tightened in lock nut with corrugated pipe connector Under state, the gap squeezed between the end face hatch frame of copper pipe and special bellows, sealing ring center protrusion produces elastic deformation Form conical surface seal so that copper pipe is by corrugated pipe connector lock sealing.

It may further be preferable that the hatch frame of the bellows and corrugated pipe connector is bell-mouth structure of air, horn mouth Framework processing is simple, and cost of manufacture is cheap, and clamping effect is also fine.

It is even furthermore preferable that the sealing ring is tubular seals circle, tubular structure gives certain elastic deformation space, Coupling mechanism force is strengthened during locking nut and corrugated pipe connector locking, is clamped closer.

It is even furthermore preferable that the tubular seals circle is made up of red copper, after the tubular seals circle stress of red copper material Central protrusion deforms to form conical surface seal, and the two ends of tubular seals circle is brought into close contact with corrugated pipe connector and locking nut does not have A bit gap, so as to reach better seal effect.

It is even furthermore preferable that the bellows is made up of the stainless steel material with certain elasticity capacity, with one Fixed rigid and elasticity, is subjected to certain deformation quantity expanded with heat and contract with cold, price is simultaneously in temperature difference environment is than larger environment Than less expensive.

The beneficial effects of the utility model are：

1st, the connection between heat collector is made using bellows cutting ferrule, is that flexible connection is converted to by traditional being rigidly connected, The connection absorbs copper pipe and produces the deformation quantity expanded with heat and contract with cold well, it is ensured that the stability of a system in heat collector use； Ensure simple in construction, it is with low cost on the basis of, reduce the workload of installation and the follow-up maintenance of equipment.

2nd, the processing of horn mouth framework is simple, and cost of manufacture is cheap, and clamping effect is also fine.

3rd, tubular structure gives certain elastic deformation space, strengthens during locking nut and corrugated pipe connector locking Coupling mechanism force, is clamped closer.

4th, the tubular seals circle hardness of red copper material is moderate, and also relatively more preferably, central protrusion is deformed deformability after stress Conical surface seal is formed, the two ends and corrugated pipe connector and locking nut for making tubular seals circle are brought into close contact without a bit gap, from And reached better seal effect.

5th, stainless steel material has certain rigid and elasticity, while convenient sizing, in temperature difference environment than larger Certain deformation quantity expanded with heat and contract with cold is subjected in environment, price is simultaneously than less expensive.

Brief description of the drawings

Fig. 1 is structural representation when bellows ferrule fitting of the present utility model is socketed copper pipe；

Fig. 2 is phantom when bellows ferrule fitting of the present utility model is socketed copper pipe；

Fig. 3 is the partial sectional view of the bellows ferrule fitting of the part A marked in Fig. 2；

Fig. 4 is the three-dimensional arrangement schematic diagram of bellows ferrule fitting of the present utility model；

Fig. 5 is connected to structural representation when on heat collector for bellows ferrule fitting of the present utility model；

Fig. 6 is connected to structural representation when on heat collector for existing bellows ferrule fitting.

Reference：1- copper pipes, 2- sealing rings, 3- locking nuts, 4- bellowss, 5- corrugated pipe connectors.

Embodiment

The technical solution of the utility model is described in detail below, it should be noted that following is only this practicality New preferred embodiment, for the person of ordinary skill of the art, design is created not departing from the utility model Under the premise of, various modifications and improvements can be made, these should belong to protection domain of the present utility model.

As shown in Fig. 1~5, a kind of bellows ferrule fitting, including for being socketed the sealing ring 2 and locking nut of copper pipe 1 3, in addition to for being socketed the cutting ferrule body of copper pipe 1, the cutting ferrule body includes bellows 4 of the middle part provided with outer ripple and symmetrically set Put the corrugated pipe connector 5 at the two ends of bellows 4；The corrugated pipe connector 5, which is provided with, to be used to connect with the screw thread of locking nut 3 The external screw thread connect；The sealing ring 2 is arranged between the corrugated pipe connector 5 and the locking nut 3；The bellows 4 with One end that the sealing ring 2 is in contact is that the sealing ring 2 can be caught in the hatch frame in the bellows 4；The ripple Relative one end connect is provided with the opening knot matched with the hatch frame of the bellows 4 to pipe joint 5 with the locking nut 3 Structure.

It is inserted in what two copper pipes merged in special bellows, sealing ring is in lock nut and corrugated pipe connector tight condition Under, the gap squeezed between the end face hatch frame of copper pipe and special bellows, sealing ring center protrusion produces elastic deformation and formed Conical surface seal so that copper pipe is by corrugated pipe connector lock sealing.As Fig. 5 and Fig. 6 are contrasted, thermal-arrest is made using bellows cutting ferrule Connection between device, is to be converted to flexible connection by traditional being rigidly connected, and the connection absorbs copper pipe and produces heat expansion well The deformation quantity of shrinkage, it is ensured that the stability of a system in heat collector use, and existing bellows ferrule fitting can only then be relied on The stress variation of equipment in itself offsets this deformation quantity, and certain destruction can be caused to equipment；The utility model is ensureing to tie Structure is simple, it is with low cost on the basis of, reduce the workload of installation and the follow-up maintenance of equipment.

It may further be preferable that as shown in the partial enlarged drawing in Fig. 3, the opening knot of the bellows and corrugated pipe connector Structure is bell-mouth structure of air.

Bell-mouthed framework cost of manufacture is cheap, is open and becomes big structure for arc, with gradually changing for sealing ring Gradually increase and the contact area of sealing ring, can make the clamping force between corrugated pipe connector and locking nut progressively become strong.

It is even furthermore preferable that the sealing ring is tubular seals circle.

The sealing ring of tubular structure during locking nut and corrugated pipe connector are locked between it can strengthen Coupling mechanism force, gives itself bigger elastic deformation space, promotes clamping closer.

It is even furthermore preferable that the tubular seals circle is made up of red copper.

The tubular seals circle hardness of red copper material is moderate, and also relatively more preferably, central protrusion deforms shape to deformability after stress Into conical surface seal, the two ends and corrugated pipe connector and locking nut for making tubular seals circle are brought into close contact without a bit gap, so that Better seal effect is reached, effect is more preferably in this respect for the tubular seals circle of red copper material.

It is even furthermore preferable that the bellows by the stainless steel 304 with certain elastic deformation power or other not Rust Steel material is made.

Stainless steel material has certain rigid and elasticity, while convenient sizing, in temperature difference environment than larger ring Be subjected to certain deformation quantity expanded with heat and contract with cold in border, price simultaneously than less expensive, the stainless steel material can for SUS304, SUS306, SUS309, SUS321, SUS310S, SUS316 or other trades mark corresponding thereto stainless steel.

The technical solution of the utility model can preferably be realized according to the record of this specification.

Claims

1. a kind of bellows ferrule fitting, including for being socketed the sealing ring and locking nut of copper pipe, it is characterised in that also include Cutting ferrule body for being socketed copper pipe, the cutting ferrule body includes middle part and is provided with the bellows of outer ripple and is symmetrically arranged on the ripple The corrugated pipe connector at line pipe two ends；The corrugated pipe connector is provided with the external screw thread for being used for being threadedly coupled with the locking nut；Institute Sealing ring is stated to be arranged between the corrugated pipe connector and the locking nut；The bellows is in contact with the sealing ring One end is that the sealing ring can be caught in the hatch frame in the bellows；The corrugated pipe connector and the locking screw parent phase One end of docking is provided with the hatch frame matched with the hatch frame of the bellows.

2. bellows ferrule fitting according to claim 1, it is characterised in that the bellows and corrugated pipe connector are opened Mouth structure is bell-mouth structure of air.

3. bellows ferrule fitting according to claim 1 or 2, it is characterised in that the sealing ring is tubular seals circle.

4. bellows ferrule fitting according to claim 3, it is characterised in that the tubular seals circle is made up of red copper.

5. the bellows ferrule fitting according to claim 1,2 or 4, it is characterised in that the bellows is by with certain The stainless steel material of elasticity capacity is made.