CN202719239U - Pneumatic pipeline shut-off valve - Google Patents

Pneumatic pipeline shut-off valve Download PDF

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Publication number
CN202719239U
CN202719239U CN 201220297499 CN201220297499U CN202719239U CN 202719239 U CN202719239 U CN 202719239U CN 201220297499 CN201220297499 CN 201220297499 CN 201220297499 U CN201220297499 U CN 201220297499U CN 202719239 U CN202719239 U CN 202719239U
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CN
China
Prior art keywords
valve
flange
pipe
valve gap
threaded
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201220297499
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Chinese (zh)
Inventor
戴正华
Original Assignee
戴正华
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 戴正华 filed Critical 戴正华
Priority to CN 201220297499 priority Critical patent/CN202719239U/en
Application granted granted Critical
Publication of CN202719239U publication Critical patent/CN202719239U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model provides a pneumatic pipeline shut-off valve and belongs to the technical field of valves. The pneumatic pipeline shut-off valve comprises a valve body and a valve seat, wherein the valve seat is positioned inside the valve body, the upper end of the valve body is in threaded connection with a flange pipe formed by steamless tube welding or hot forging, the outside of the flange tube is movably connected with a flange I in a sleeved mode, the upper end of the flange pipe is connected with a flange sealing gasket I of a limit flange I in a threaded mode, the valve body is connected with a valve deck formed by the steamless tube welding or the hot forging through an arranged pressing plate, the outside of the valve deck is movably connected with a flange II in a sleeved mode, a piston connected with the valve seat is arranged inside the valve deck, and the lower end of the valve deck is connected with a flange sealing gasket II of a limit flange II in a threaded mode. Compared with the prior art, cost is reduced by more than 50%, weight is lightened by more than 30%, material quality is enhanced by more than 100%, installing, maintaining and utilizing are easy, and service life is prolonged by more than a half.

Description

The Pneumatic pipe cut-off valve
Technical field
The utility model belongs to valve technology field, is specifically related to the Pneumatic pipe cut-off valve.
Background technique
Traditional Pneumatic pipe cut-off valve, generally all adopt casting technique, its shortcoming is that casting technology is complicated, cost is high, quality does not have to ensure, scrappage is high, pore, trachoma are arranged, flow is little, the PN value is low, application area is very restricted, the valve latus rectum is restricted, general latus rectum (<DN80〉DN200); And traditional Pneumatic pipe cut-off valve all adopts the means of fixation such as casting, welding to connect, so that the Pneumatic pipe cut-off valve is installed, dismounting is very inconvenient, as adopted the fastening flange of casting, so that the Pneumatic pipe cut-off valve exists cost height, intensity difference, user installation to safeguard that inconvenient, flange model is difficult for moulding, fills valve not in the first-class shortcoming of the same face in the other direction.
The model utility content
For the problem that prior art exists, the purpose of this utility model is to design the technological scheme that a kind of Pneumatic pipe cut-off valve is provided.
Described Pneumatic pipe cut-off valve, comprise valve body and be arranged on valve seat in the valve body, the flange pipe that it is characterized in that being threaded at described valve body upper end weldless tube welding or heat forged make, the outer pivot bush unit flange I of flange pipe, the flange gasket I of the spacing flange I that is threaded on the flange pipe, described valve body connects the valve gap that weldless tube welds or heat forged makes by the pressing plate that arranges, the outer pivot bush unit flange II of valve gap, the piston that is connected with valve seat is set, the be threaded flange gasket II of spacing flange II of valve gap lower end in the valve gap.
Described Pneumatic pipe cut-off valve is characterized in that described valve body upper end arranges internal thread.
Described Pneumatic pipe cut-off valve, it is characterized in that described flange pipe comprises one-body molded or a minute body formed flange pipe connected pipe body is connected circular body with the flange pipe, the external socket of described flange pipe connected pipe arranges the flange I, the flange pipe connected pipe body upper end flange gasket I that is threaded, described flange pipe connect the circular body valve body that is threaded.
Described Pneumatic pipe cut-off valve is characterized in that described valve body lower end connects pressing plate by screw.
Described Pneumatic pipe cut-off valve is characterized in that described valve gap passes behind the pressing plate convex tendon and the pressing plate snapping by its upper setting.
Described Pneumatic pipe cut-off valve, it is characterized in that described valve gap comprises one-body molded or a minute body formed valve gap cylindrical cavity is connected body with valve gap, the edge arranges convex tendon on the described valve gap cylindrical cavity, the external socket of described valve gap connecting tube arranges the flange II, and valve gap connects body lower end snail line adpting flange sealing gasket II.
Above-mentioned Pneumatic pipe cut-off valve, simple in structure, reasonable in design, integrated formed structure or Split type structure that flange pipe in the utility model and valve gap adopt weldless tube welding or heat forged to make, its cost be casting 50%, stock utilization improves more than 3 times, application area enlarges, the valve latus rectum is unrestricted, machining is simple, simultaneously the valve concentricity is secure, and valve body zero leakage, flow are large, the PN value is greater than NBS; Adopting between all parts in the utility model is spirally connected waits movable connection method, and installation and removal make things convenient for; The flange I and the flange II that adopt to be flexibly connected in the utility model, cost is low, be easy to client's flange to type, and user installation is easy to maintenance, safe, practical, and any direction mounted valve makes its equipment keep clean and tidy all on the same face.
Above-mentioned Pneumatic pipe cut-off valve is compared with prior art: cost is more than 50%, and weight saving is more than 30%, and material improves more than 100%, and installation and maintenance are easy to use, and be enhanced about more than once working life.
Description of drawings
Fig. 1 is Split type structure schematic representation of the present utility model;
Fig. 2 is stereogram of the present utility model;
Fig. 3 is mounting structure schematic representation of the present utility model.
Among the figure: 1-flange gasket I; 2-flange I; 3-flange pipe; 301-flange pipe connects circular body; 302-flange pipe connected pipe body; The 4-valve seat; The 5-valve body; The 501-internal thread; The 6-pressing plate; The 7-valve gap; 701-valve gap cylindrical cavity; The 702-valve gap connects body; The 703-convex tendon; 8-flange II; 9-flange gasket II; The 10-piston.
Embodiment
Further specify the utility model below in conjunction with Figure of description.
As shown in the figure, the Pneumatic pipe cut-off valve comprises that inside is provided with the valve body 5 of valve seat 4, the valve body 5 upper ends flange pipe 3 that weldless tube welding or heat forged make that is threaded, valve body 5 lower ends connect the valve gap 7 that weldless tube welds or heat forged makes by the pressing plate 6 that arranges, and are provided with the piston 10 that is connected with valve seat 4 in the valve gap 7.
Flange pipe 3 concrete structures comprise one-body molded or a minute body formed flange pipe connected pipe body 302 is connected circular body 301 with the flange pipe.Flange pipe connected pipe body 302 outer pivot bush units arrange flange I 2, the be threaded flange gasket I 1 of spacing flange I 2 of flange pipe 3 upper ends, and flange I 2 can be up and down at flange pipe connected pipe body 302; The flange pipe connects circular body 301 and is threaded with the internal thread 501 that valve body 5 upper ends arrange.Flange pipe 3, flange I 2 and flange gasket I 1 adopt above-mentioned linkage structure, only need simple flange gasket I 1 must the back-out, can replace the type of flange I 2, to be fit to different installation situation.
Pressing plate 6 is screwed with valve body 5, and after valve gap 7 passes pressing plate 6, is fixedly clamped by valve body 5 and pressing plate 6.Valve gap 7 concrete structures comprise one-body molded or a minute body formed valve gap cylindrical cavity 701 is connected body 702 with valve gap.Along a circle convex tendon 703 is set, valve gap 7 passes through convex tendon 703 and pressing plate 6 snappings after passing pressing plate 6 during installation, and it is linked together on the valve gap cylindrical cavity 701; Valve gap connects body 702 outer sockets flange II 8 is set, and valve gap connects the be threaded flange gasket II 9 of spacing flange II 8 of body 702 lower ends, and it is up and down that flange II 8 can connect body 702 at valve gap.Valve gap 7, pressing plate 6, flange II 8 and flange gasket II 9 adopt above-mentioned linkage structure, and be not only easy for installation, and only need simple flange gasket II 9 must the back-out, can replace the type of flange II 8, to be fit to different installation situation.
All parts in the utility model forms by materials processings such as stainless steel, cast steel, cast iron, glass fibre reinforced plastics and PPL.
During use, by moving up and down of external agency control piston 10, thus the aperture of control valve seat 4.
Above-mentioned Pneumatic pipe cut-off valve is compared with prior art: cost is more than 50%, and weight saving is more than 30%, and material improves more than 100%, and installation and maintenance are easy to use, and be enhanced about more than once working life.

Claims (6)

1. Pneumatic pipe cut-off valve, comprise valve body (5) and be arranged on valve seat (4) in the valve body (5), the flange pipe (3) that it is characterized in that being threaded at described valve body (5) upper end weldless tube welding or heat forged make, flange pipe (3) outer pivot bush unit flange I (2), the flange gasket I (1) of the spacing flange I (2) that is threaded on the flange pipe (3), described valve body (5) connects the valve gap (7) that weldless tube welds or heat forged makes by the pressing plate (6) that arranges, valve gap (7) outer pivot bush unit flange II (8), the piston (10) that is connected with valve seat (4) is set, the be threaded flange gasket II (9) of spacing flange II (8) of valve gap (7) lower end in the valve gap (7).
2. Pneumatic pipe cut-off valve as claimed in claim 1 is characterized in that described valve body (5) upper end arranges internal thread (501).
3. Pneumatic pipe cut-off valve as claimed in claim 1, it is characterized in that described flange pipe (3) comprises one-body molded or a minute body formed flange pipe connected pipe body (302) is connected circular body (301) with the flange pipe, the outer socket of described flange pipe connected pipe body (302) arranges flange I (2), flange pipe connected pipe body (302) the upper end flange gasket I (1) that is threaded, described flange pipe connect circular body (301) valve body (5) that is threaded.
4. Pneumatic pipe cut-off valve as claimed in claim 1 is characterized in that described valve body (5) lower end connects pressing plate (6) by screw.
5. Pneumatic pipe cut-off valve as claimed in claim 1 is characterized in that described valve gap (7) passes the rear convex tendon (703) and pressing plate (6) snapping by arranging on it of pressing plate (6).
6. Pneumatic pipe cut-off valve as claimed in claim 1, it is characterized in that described valve gap (7) comprises one-body molded or a minute body formed valve gap cylindrical cavity (701) is connected body (702) with valve gap, described valve gap cylindrical cavity (701) is upper along convex tendon (703) is set, described valve gap connects the outer socket of body (702) flange II (8) is set, and valve gap connects body (702) lower end screw thread adpting flange sealing gasket II (9).
CN 201220297499 2012-06-25 2012-06-25 Pneumatic pipeline shut-off valve Expired - Fee Related CN202719239U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220297499 CN202719239U (en) 2012-06-25 2012-06-25 Pneumatic pipeline shut-off valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220297499 CN202719239U (en) 2012-06-25 2012-06-25 Pneumatic pipeline shut-off valve

Publications (1)

Publication Number Publication Date
CN202719239U true CN202719239U (en) 2013-02-06

Family

ID=47621063

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220297499 Expired - Fee Related CN202719239U (en) 2012-06-25 2012-06-25 Pneumatic pipeline shut-off valve

Country Status (1)

Country Link
CN (1) CN202719239U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102705559A (en) * 2012-06-25 2012-10-03 戴正华 Pneumatic pipeline shut-off valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102705559A (en) * 2012-06-25 2012-10-03 戴正华 Pneumatic pipeline shut-off valve

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130206

Termination date: 20130625