CN2622531Y

CN2622531Y - Quick pipe coupler

Info

Publication number: CN2622531Y
Application number: CN 02270972
Authority: CN
Inventors: 崔锦开
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-06-12
Filing date: 2002-06-12
Publication date: 2004-06-30
Anticipated expiration: 2012-06-12

Abstract

The utility model is a fast pipe joint belonging to the field of pipe connecting fittings and can be used for gas pipe. The utility model comprises a fastener and a connection plug which are connected in a detachable way; the fastener is designed with a tubular structure and the inner cavity has been processed into a scalariform gas pipe, a valve structure, an admission chamber and a discharge chamber which can move along the gas pipe are disposed in the pipe inner cavity; one end outside of pipe is disposed with male threads and the other end is disposed with a circular groove; the connection plug is a tubular one with one end protruding in the middle part to form the gas pipe, the external wall of the pipe is disposed with fastening device and the other end is disposed with female threads. The structure of the utility model is unique and the tightness is excellent without leakage, therefore, the utility model is safe and reliant. Moreover, the utility model is characterized in that the fixation is precise, the disassembly is convenient, assembly is fast and connection is steady. In addition, the cost is low. The product is durable and beneficial to environmental protection; therefore, the utility model can be used for gas pipe fast connection.

Description

The rapid pipeline joint

Technical field

The utility model belongs to the pipe joint field, can be used for the connection of gas pipe line.

Background technique

Present existing pipe connecting method is varied, the on-the-spot tapping of the employing that has, bonding processing, the mode of the employing rapid pipeline joint that also has connects, a kind of rapid pipeline joint is disclosed as Chinese patent CN2260942Y, it is by pipe coupling, gland nut, and seal ring and fastening ring are formed, have the pipeline of making and connect, but have deficiencys such as complex structure, dismounting inconvenience, sealability and Safety performance be relatively poor than the former advantage fast, easily.

Summary of the invention

The purpose of this utility model provides a kind of rapid pipeline joint, and it has sealability and Safety performance is good, the location accurately, load and unload convenient, fast especially, and durable, compliance with environmental protection requirements, characteristics that cost is low.

The purpose of this utility model is achieved in that

The utility model comprises fixed block and attachment plug composition, adopts removable flexible connection between the two, and described fixed block is a tubular structure, and inner chamber is processed into the air flue that section is a ladder-shaper structure, air flue can be divided into suction chamber and discharge chamber.Be provided with valve mechanism, suction chamber, the discharge chamber that can move along air flue at tube cavity, the outer end of pipe is provided with outside thread, and the other end is provided with the ring-type draw-in groove; Described attachment plug is tubular structure, and an end center protrusion forms air flue, and the pipe outer wall is provided with securing means, and the other end is an internal thread.

Above-mentioned valve mechanism comprises that band valve pipe, Sealing, spring, its medi-spring are positioned at suction chamber, and the band valve pipe is positioned at discharge chamber and has an end to connect Sealing, and Sealing is between suction chamber and discharge chamber.

The inner edge projection of the other end of above-mentioned valve pipe forms interior pipe, and its external diameter matches with the air flue internal diameter of attachment plug, can connect together.

The discharge chamber inwall and the male end of above-mentioned fixing piece are respectively equipped with the several layers O-ring seal, make fixed block and attachment plug socket one time-out enhanced leaktightness effect, improve Safety performance.

The above-mentioned fixing piece inner chamber is provided with the seal ring of circular protrusion.

Above-mentioned securing means comprises that the draw-in groove on spring, positioning bead return cover, positioning bead, outer fastening ring and the outside thread fixed block constitutes, the tube wall of described attachment plug is provided with several holes, be provided with positioning bead in the hole, the tube wall outside has outer fastening ring is movably arranged, and Returnning spring is arranged between outside it and the tube wall; There is positioning bead return cover the tube wall inboard, and wherein an end connects spring.Its effect is fixed block and attachment plug socket one time-out, plays fixation.

The utility model has following advantage compared to existing technology:

1. the utility model structure uniqueness is reasonable in design, has good seal performance, does not tightly leak, and saves source of the gas, and is safe and reliable, has the location accurately again, dismantle very convenient, plug into fast, connect firmly, characteristics that cost is low.

2. main parts size application alloyed copper is made, corrosion-resistant, anti-aging, and product is durable in use, is beneficial to environmental protection, can be applicable to the quick connection of gas pipe line.

Description of drawings

Fig. 1 is the structural representation of the utility model fixed block

Fig. 2 is the structural representation of the utility model attachment plug.

Fig. 3 is the utility model structural representation.

Embodiment

Below in conjunction with accompanying drawing in detail 26S Proteasome Structure and Function of the present utility model is described in detail

With reference to Fig. 1, Fig. 2, Fig. 3, the utility model is by fixed block 1, and attachment plug 2 is formed, and can adopt movable connection between the two.Described fixed block 1 is a tubular structure, and inner chamber is processed into the air flue that section is a ladder-shaper structure, and protruding part forms seal ring, air flue can be divided into suction chamber and discharge chamber.Be provided with valve mechanism 11, suction chamber 12, the discharge chamber 13 that can move along air flue at tube cavity, pipe outer wall one end is provided with outside thread 14, the other end is provided with ring-type draw-in groove 15, can utilize its outside thread to be fixed on the stopcock of gas-tank, internal thread in the tapped attachment plug 2 can be connected with the outside thread on the reduction valve, inserts fixed block can plug into easily and quickly gas-tank and reduction valve by attachment plug.Above-mentioned valve mechanism 11 comprises band valve pipe 111, Sealing 112, spring 113, and its medi-spring 113 is positioned at suction chamber 12, and has an end to contact with Sealing 112; Band valve pipe 111 is positioned at discharge chamber 13 and has an end to form one with connecing Sealing 112, pipe 114 in the inner edge projection of the other end forms, and its external diameter size matches with the air flue internal diameter of attachment plug 2, can connect together.Simultaneously, on the inwall of pipeline 111, be provided with pore 115.Seal ring 16 is the projection ring-type, inner chamber can be divided into suction chamber and discharge chamber.Sealing 112 is between suction chamber and discharge chamber, owing to seal ring 16 barrier effects are arranged, so it can only move in suction chamber.Simultaneously, because the elastic force effect of spring 113, Sealing 112 contacts with seal ring 16 and forms the valve closing state, and coal gas can not leak.If enforce band valve pipe 111, the elastic force that it can overcome spring 113 makes Sealing and band valve pipe break away from seal ring 16 simultaneously and move into suction chamber, at this moment the coal gas in the suction chamber enters in the pipeline by pore 115, arrives discharge chamber again, forms gas channel.The inwall of discharge chamber 13 embeds several layers O-ring seal 17, is advisable with one to three layer, makes fixed block 1, and attachment plug 2 sockets one time-out sealing effect is better, improves Safety performance.Draw-in groove 15 is a circular groove shape structure, when attachment plug is inserted, can fall into for positioning bead, plays the effect of seal ring simultaneously again.In addition, in order to strengthen sealing effect, be provided with O-ring seal 18 in the male end of fixed block.Tapped attachment plug 2 is tubular structure, and an end center protrusion forms air flue 21, and the pipe outer wall is provided with securing means 22, and the other end is an internal thread 23.Described air flue 21 can socket-connect with band valve pipe 111, forms the passage of coal gas circulation.Above-mentioned securing means 22 comprises that the draw-in groove 15 on Returnning spring 221,222, positioning bead return cover 223, positioning bead 224, outer fastening ring 225 and the fixed block constitutes, and its effect is when fixed block and attachment plug socket one time-out, plays fixation.The tube wall of described attachment plug 2 is provided with several holes, is provided with positioning bead 224 in the hole, and movably there is outer fastening ring 225 in the tube wall outside, Returnning spring 221 is arranged between outside it and the tube wall; The inboard positioning bead return cover 223 of tube wall, wherein an end connects spring 222.When tapped attachment plug 2 is inserted when being with externally threaded fixed block 1, positioning bead return cover 223 is moved right by the effect of thrust, pressure spring 222, as move on to draw-in groove 15 and positioning bead 224 corresponding positions, positioning bead falls into draw-in groove 15, plays snap action, makes outer fastening ring 225 be subjected to the effect of spring 221 to compress the positioning bead 224 that falls into draw-in groove to shifting left simultaneously, positioning bead can not be shifted, reach the more firm purpose of connection; When dismounting, only need push hard outer fastening ring 225, make it to be shifted, positioning bead 224 sets back under the elastic force effect of spring 222, and attachment plug can be ejected automatically, realizes fast quick-detach, and is convenient, fast.

Working principle of the present utility model is: the outside thread of fixed block 1 is fixed on the stopcock of gas-tank, internal thread in the tapped attachment plug 2 is fixed on the reduction valve, at this moment because the effect of spring 113, Sealing 112 contacts with seal ring 16 and forms the valve closing state, and coal gas can not spill; If attachment plug 2 is inserted, promote band valve pipe 111 and Sealing and move into suction chamber simultaneously, at this moment the coal gas in the suction chamber enters in the pipeline by pore 115, enters the air flue 21 that socket-connects from discharge chamber, flows to reduction valve again, forms passage.

Claims

1, a kind of rapid pipeline joint, it is characterized in that it is made up of fixed block (1) and attachment plug (2), adopt removable flexible connection between the two, described fixed block (1) is a tubular structure, the inner chamber section is the air flue of ladder-shaper structure, be provided with valve mechanism (11), suction chamber (12), the discharge chamber (13) that can move along air flue, pipe outer wall one end is provided with outside thread (14), and the other end is provided with ring-type draw-in groove (15); Described attachment plug (2) is tubular structure, and an end center protrusion forms air flue (21), and the pipe outer wall is provided with securing means (22), and the other end is internal thread (23).

2, by the described rapid pipeline joint of claim 1, it is characterized in that valve mechanism (11) comprises band valve pipe (111), Sealing (112), spring (113), its medi-spring (113) is positioned at suction chamber (12), and band valve pipe (111) is arranged in discharge chamber (13) and has an end to connect Sealing (112); Described Sealing (112) is between suction chamber and discharge chamber.

3, by the described rapid pipeline joint of claim 2, it is characterized in that the inner edge projection of an end of valve pipe (111) forms interior pipe (114), its external diameter matches with air flue (21) internal diameter of internal thread attachment plug.

4, by the described rapid pipeline joint of claim 2, it is characterized in that fixed block (1) inner chamber is provided with the seal ring (16) of circular protrusion.

5, by the described above-mentioned rapid pipeline joint of claim 1, it is characterized in that securing means (22) comprises that the draw-in groove (15) on spring (221), (222), positioning bead return cover (223), positioning bead (224), outer fastening ring (225) and the fixed block pipe outer wall constitutes, the tube wall of described attachment plug 2 is provided with several holes, be provided with positioning bead (224) in the hole, movably outer fastening ring (225) is established in the tube wall outside, spring (221) is arranged between outside it and the tube wall; The inboard positioning bead return cover (223) of tube wall, wherein an end connects spring (222).

6, by each described rapid pipeline joint of claim 1 to 5, it is characterized in that discharge chamber inwall (13) is provided with several layers O-ring seal (17), be provided with O-ring seal (18) in the male end of fixed block.