CN201448544U

CN201448544U - Lock type fast pipe joint

Info

Publication number: CN201448544U
Application number: CN2009200599440U
Authority: CN
Inventors: 崔锦开
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-07-07
Filing date: 2009-07-07
Publication date: 2010-05-05
Anticipated expiration: 2019-07-07

Abstract

The utility model discloses a lock type fast pipe joint comprising a joint matrix (1) and a connection plug (2) which are connected in a movable manner, wherein the joint matrix (1) adopts a tubular structure, and the inner chamber is shaped into an air flue with a scalariform section and is provided with a gas inlet chamber (11), a valve structure (12) capable of moving along the air flue, a sealing structure, and a gas outlet chamber (14); a fastening device (15) is arranged at the rear end and on the outer wall of the joint matrix (1), and a connection port (16) is arranged at the front end thereof; and the connection plug (2) adopts a tubular structure, an air flue (21) is formed at the middle part thereof, a ring-shaped clamping groove (22) is formed at the front end, and a connection port (23) is arranged at the rear end. The utility model adopting the structure has the advantages of accurate positioning, convenient disassembly, compact and reasonable structure, air-tight effect, gas source conservation and environmental protection, and the peculiar double insurance lock function of the product is very suitable for fast connection of dangerous gas pipelines.

Description

Formula rapid pipeline joint with lock

Technical field

The utility model belongs to the pipeline connection area, is mainly used in the connection of hazardous gas pipelines such as oxygen channel, acetylene pipeline, carbon dioxide conduit.

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 dismounting inconvenience, sealability and Safety performance be relatively poor than the former advantage fast, easily.

The model utility content

The purpose of this utility model provides a kind of formula rapid pipeline joint with lock, it have function with lock, location accurately, compact structure, high leak tightness and Security, convenient disassembly, reliable and stable characteristics, simultaneously, save source of the gas again, compliance with environmental protection requirements, cost is low.

In order to solve the problems of the technologies described above, formula rapid pipeline joint with lock of the present utility model comprises joint parent and attachment plug, adopts movable connection between the two.The joint parent is a tubular structure, and it is the air flue of ladder-shaper structure that inner chamber becomes section, the valve mechanism, sealing configuration, the discharge chamber that are provided with suction chamber, can move along air flue at inner chamber; Connection parent rear end and outer wall are provided with the Valve with lock structure and comprise spring, valve core, band valve pipe; Its medi-spring is positioned at suction chamber, an end connecting tube inwall, and the other end contacts with the valve core; There are several pore connecting band valve pipe hollow pipelines in valve core stage casing.

Sealing configuration comprises Sealing before Sealing behind the valve, valve supporting ring, the valve; Sealing is for outstanding step ring-type, between suction chamber and described discharge chamber behind this valve; The outstanding ring-type of this valve supporting ring front end contacts Sealing before this valve, and its rear end connects Sealing behind this valve; Valve core rear end has an outstanding seal ring to contact with Sealing behind this valve.Sealing is established the sulfuration Sealing of metal frame in being before the valve.

Securing means is positioned at the outer wall of joint parent tubular structure, comprises the ring-type draw-in groove in preceding fastening ring, plastic cement moving sleeve, positioning ball catch, location lock screw, Returnning spring, positioning ball, connector interfaces and the attachment plug.The connector interfaces inwall is provided with a step hole, and positioning ball hole thus enters preceding fastening ring, and step hole is in and is provided with the positioning ball catch, and its effect is to prevent to skid off after steel ball from packing into; Preceding fastening ring tube wall is provided with several holes, set a steel ball in the hole, preceding fastening ring matches with the plastic cement moving sleeve to be connected to and can move forward and backward and rotatable one, in preceding fastening ring, be provided with Returnning spring between pipe and the connector interfaces, its effect is a fastening ring and plastic cement moving sleeve return before making when joint parent and attachment plug connect together, a fixation.

Be provided with the security seal circle in the discharge chamber inwall of joint parent, make attachment plug form sealing effect before backing down the valve core, improve Safety performance and save the gas energy being inserted in the joint parent; After complete socket, Sealing and security seal circle form double seal before the valve, and be more safe and reliable.This security seal circle is embedded.

The connector interfaces outer wall is provided with location lock screw; Plastic cement moving sleeve front end is provided with low level and high-order step draw-in groove. but a plastic cement moving sleeve and preceding fastening ring solderless wrapped connection connecting body rotates; Lock screw in location can be between the high level of plastic cement moving sleeve step draw-in groove or the low level and move. and it act as and plastic cement moving sleeve and preceding fastening ring can be rotated 45 spend after joint parent and attachment plug socket, location lock screw is in the high level of step draw-in groove, plastic cement moving sleeve and preceding fastening ring can't be retreated this moment and cause joint parent and attachment plug when unconscious collision, can oneself ejection not dismantled, cause the waste source of the gas and when leading to hazardous gas, cause uncertain security incident, play safety location lock.

The utility model has following advantage compared to existing technology:

1. the utility model structure uniqueness is reasonable in design, more safe and reliable, and the tool sealability is better, does not tightly leak, and saves source of the gas, safety durable, and have the location accurately again, and firm and the low characteristics of cost are plugged into, connected to function with lock, fast at convenient disassembly.

2. main parts size adopts surface treatment, corrosion-resistant, anti-aging, and product is durable in use, is beneficial to environmental protection, and the distinctive double insurance of product function with lock is fit to the quick connection of hazardous gas pipeline very much.

Description of drawings

The utility model is described in more detail below in conjunction with the drawings and specific embodiments:

Fig. 1 is the structural representation of the utility model joint parent.

Fig. 1 .1 is the formula securing means latch-release view with lock of the utility model joint parent.

Fig. 1 .2 is the formula securing means lock state schematic representation with lock of the utility model joint parent.

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

Fig. 3 is the utility model structural representation.

Embodiment

With reference to Fig. 1, Fig. 1 .1, Fig. 1 .2, Fig. 2, Fig. 3, the utility model is made up of joint parent 1 and attachment plug 2, adopts movable connection between the two.Joint parent 1 is a tubular structure, and it is the air flue of ladder-shaper structure that inner chamber becomes section, air flue can be divided into suction chamber 11 and discharge chamber 14.The valve mechanism 12, sealing configuration, the discharge chamber 14 that are provided with suction chamber 11, can move along air flue at inner chamber.Joint parent 1 rear end and outer wall are provided with formula securing means 15 with lock, and its front end is provided with outside thread formula (can be changed to I.S.S, clamp pipe type, hose type etc.) connecting port 16, and the connecting port 16 that can utilize its front end to be provided with connects on needed pipeline.Attachment plug 2 is tubular structure, the middle air flue 21 that forms, and its front end has a ring-type draw-in groove 22, and the rear end is provided with to hose type (can be changed to outside thread formula, I.S.S, clamp pipe type etc.) connecting port 23, can connect on needed pipeline.Then, joint parent 1 and attachment plug 2 can be rotated to lock state with the securing means with lock 15 on the joint parent 1 after the socket apace shown in Fig. 1 .2, realizing plugs into safe and efficiently threads a pipe.

Valve mechanism 12 comprises spring 121, valve core 122, band valve pipe 127, and its medi-spring 121 is positioned at suction chamber 11, one end connecting tube inwalls, and the other end contacts with valve core 122; There are several pore 126 connecting band valve pipes 127 hollow pipelines in valve core 122 stage casings, and this section is positioned at discharge chamber 14.

Sealing configuration comprises Sealing 125 before Sealing 123 behind the valve, valve supporting ring 124, the valve; Sealing 123 between suction chamber 11 and discharge chamber 14, can be divided into inner chamber suction chamber 11 and discharge chamber 14, its preceding end in contact valve supporting ring 124 for outstanding step ring-type behind this valve; The outstanding ring-type of these valve supporting ring 124 front ends contacts Sealing 125 before this valve, and its rear end connects Sealing 123 behind this valve; Valve core 122 rear ends have an outstanding seal ring to contact with Sealing 123 behind this valve; Band valve pipe 127 is positioned at discharge chamber 14, Sealing 123 behind the rear end connection valve.Valve supporting ring 124 act as and connects valve front and back Sealing 125,123; Sealing 125 is established the sulfuration seal ring of metal frame in being before the valve, act as when connecting pipe SEALING FITTING parent 1 and attachment plug 2 simultaneously.

Valve core 122 is between suction chamber 11 and discharge chamber 14, because Sealing 123 and valve supporting ring 124 barrier effects behind the valve, so it can only move in suction chamber 11. simultaneously, because the elastic force effect of spring 121, valve core 122 contacts with Sealing 123 behind the valve and forms the valve closing state, if gas can't leak. use attachment plug 2 to enforce valve core 122, the elastic force that it can overcome spring 121 makes valve core 122 break away from Sealing 123 behind the valves and enters suction chamber 11, this moment, suction chamber 11 interior gases entered band valve pipe 127 by pore 126, thereby the air flue 21 to attachment plug 2 forms gas channel again. discharge chamber 14 inwalls have Embedded security seal circle 13, elder generation is not by security seal circle 13 before attachment plug 2 cover access joint parents 1 promote valve core 122, produce sealing effect one step ahead, thereby play the effect of saving source of the gas and safety. when access joint parent 1 promotion valve core 122 formation gas channels are overlapped in attachment plug 2 fully, Sealing 125 and security seal circle 13 plug 2 that is tightly connected simultaneously before the valve, play the double seal effect, guarantee the safety when gas is plugged into. when the complete socket of attachment plug 2, joint parent 1 front end is provided with formula securing means 15 with lock and matches with the ring-type draw-in groove 22 of attachment plug 2 front ends, guarantees that joint parent 1 can not eject the fastening effect that separates because of undesigned collision automatically with attachment plug 2 thereby play.

Formula securing means 15 with lock comprises the ring-type draw-in groove 22 in preceding fastening ring 151, plastic cement moving sleeve 152, positioning ball catch 153, location lock screw 154, Returnning spring 155, positioning ball 156, connector interfaces 157 and the attachment plug 2, its effect is when joint parent 1 and attachment plug 2 connect together, and plays safe fixation.Connector interfaces 157 inwalls are provided with a step hole, and positioning ball 156 hole thus enters in the preceding fastening ring 151, and step hole is in and is provided with positioning ball catch 153, and its effect is to prevent to skid off after steel ball from packing into; Preceding fastening ring 151 tube walls are provided with several holes, set a steel ball 156 in the hole, and preceding fastening ring 151 adopts the groove-fastening type interference fit to be connected to plastic cement moving sleeve 152 and can move forward and backward and rotatable one; In preceding fastening ring 151, be provided with Returnning spring 155 between pipe and the connector interfaces 157, when joint parent 1 is inserted in attachment plug 2, preceding fastening ring 151 is moved to the left with the effect that positioning ball 156 is subjected to thrust with plastic cement moving sleeve 152, compression reseting spring 155, as move on to certain position when positioning ball 156 can be snapped in mutually with the ring-type draw-in groove 22 of attachment plug 2 front ends, this moment is because of the elastic force effect of Returnning spring 155, fastening ring 151 and plastic cement moving sleeve 152 are inconjunction with positioning ball 156 and move right with attachment plug 2 and reset before making, and the inclined-plane that positioning ball 156 pastes connector interfaces 157 inner chambers plays the effect that is fixed.Plastic cement moving sleeve 152 rear ends are provided with the step draw-in groove, connector interfaces 157 outer walls in its back-end are provided with location lock screw 154, plastic cement moving sleeve 152 and preceding fastening ring 151 can be rotated counterclockwise simultaneously the high level (seeing Fig. 1 .2) that 45 degree make location lock screw 154 be in plastic cement moving sleeve 152 step draw-in grooves this moment and reach lock state, place restrictions on plastic cement moving sleeve 15) and preceding fastening ring 151 retreats and cause joint parent 1 and attachment plug 2 to eject dismounting in unconscious collision, causes the waste source of the gas and cause uncertain security incident when leading to hazardous gas.When needs are dismantled, only need opposite spin plastic cement moving sleeve 152 and preceding fastening ring 151 to draw-in groove low level (seeing Fig. 1 .1) latch-release state, fastening ring 151 is moved to the left with plastic cement moving sleeve 152 drive positioning balls 156 before promoting then, make ring-type draw-in groove 22 arrival in positioning ball 156 and the attachment plug 2 can skid off the position, this moment is because the elastic force effect of the spring 121 in the suction chamber 11, promoting valve core 122 resets and contact formation valve closing state with Sealing 123 behind the valve and eject attachment plug 2 automatically, realize loading and unloading fast, safe and efficient.

Working principle of the present utility model is: utilize the connecting port 16 of joint parent 1 front end to connect on needed pipeline, this moment is because the effect of spring 121, valve core 122 contacts with Sealing 123 behind the valve and forms the valve closing state, and gas can not spill; The connecting port 23 that attachment plug 2 rear ends are provided with also connects on needed pipeline, if attachment plug 2 covers are inserted in the joint parent 1, form sealing state by security seal circle 13 earlier, promote valve core 122 again and enter suction chamber 11, the pore 126 in logical valve core 122 stage casings of gases in the suction chamber 11 enters in the band valve passage 127 at this moment, flow into the air flue 21 of attachment plug 2 again, form gas channel, simultaneously Sealing 125 and security seal circle 13 form the double seal insurance of passages before the valve, and 15 of formula securing meanss with lock firmly are connected attachment plug 2 in the joint parent 1.

Claims

1. formula rapid pipeline joint with lock, comprise joint parent (1) and attachment plug (2), adopt movable connection between the two, it is characterized in that: described joint parent (1) is a tubular structure, it is the air flue of ladder-shaper structure that inner chamber becomes section, the valve mechanism (12), sealing configuration, the discharge chamber (14) that are provided with suction chamber (11), can move along air flue at inner chamber; This joint parent (1) rear end and outer wall are provided with securing means (15), and its front end is provided with connecting port (16); Described attachment plug (2) is tubular structure, the middle air flue (21) that forms, and its front end has a ring-type draw-in groove (22), and its rear end is connecting port (23).

2. by the described formula rapid pipeline joint with lock of claim 1, it is characterized in that: described valve mechanism (12) comprises spring (121), valve core (122), band valve pipe (127); This spring (121) is positioned at described suction chamber (11), an end connecting tube inwall, and the other end contacts with valve core (122); There is several pores (126) connecting band valve pipes (127) hollow pipeline in this valve core (122) stage casing.

3. by the described formula rapid pipeline joint with lock of claim 1, it is characterized in that: described sealing configuration comprises Sealing (125) before Sealing (123) behind the valve, valve supporting ring (124), the valve; Sealing behind this valve (123) is positioned between described suction chamber (11) and the described discharge chamber (14) for outstanding step ring-type; The outstanding ring-type of this valve supporting ring (124) front end contacts Sealing (125) before this valve, and its rear end connects Sealing (123) behind this valve; Described valve core (122) rear end has an outstanding seal ring to contact with Sealing (123) behind this valve.

4. by the described formula rapid pipeline joint with lock of claim 1, it is characterized in that: described securing means (15) is positioned at the outer wall of described joint parent (1) tubular structure, comprises the ring-type draw-in groove (22) in preceding fastening ring (151), plastic cement moving sleeve (152), positioning ball catch (153), location lock screw (154), Returnning spring (155), positioning ball (156), connector interfaces (157) and the described attachment plug (2).

5. by the described formula rapid pipeline joint with lock of claim 1, it is characterized in that: described discharge chamber (14) inwall is provided with security seal circle (13).

6. by the described formula rapid pipeline joint with lock of claim 5, it is characterized in that: described security seal circle (13) is for embedded.

7. by the described formula rapid pipeline joint with lock of claim 3, it is characterized in that: Sealing (125) is established the sulfuration Sealing of metal frame in being before the described valve.

8. the described formula rapid pipeline joint with lock of claim 4, it is characterized in that: described connector interfaces (157) tube wall is provided with a step hole, and step hole is in and is provided with positioning ball catch (153); The outstanding tube wall of fastening ring (151) is provided with several holes before described, be provided with positioning ball (156) in the hole, should be provided with snap-in interference fit with described plastic cement moving sleeve (152) joint by preceding fastening ring (151), both are linked as move forward and backward together and the one of rotary moveable, in fastening ring (151) before this, be provided with Returnning spring (155) between pipe and this connector interfaces (157).

9. by the described formula rapid pipeline joint with lock of claim 8, it is characterized in that: described connector interfaces (157) outer wall is provided with location lock screw (154); Described plastic cement moving sleeve (152) front end is provided with low level and high-order step draw-in groove.

10. by the described formula rapid pipeline joint with lock of claim 8, it is characterized in that: described plastic cement moving sleeve (152) can rotate around described connector interfaces (157) with described preceding fastening ring (151); Described location lock screw (154) can be between the high level of described plastic cement moving sleeve (152) step draw-in groove or the low level and move.