CN203082225U - Corrosion-resistant quick closing stop valve - Google Patents

Corrosion-resistant quick closing stop valve Download PDF

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Publication number
CN203082225U
CN203082225U CN 201320080682 CN201320080682U CN203082225U CN 203082225 U CN203082225 U CN 203082225U CN 201320080682 CN201320080682 CN 201320080682 CN 201320080682 U CN201320080682 U CN 201320080682U CN 203082225 U CN203082225 U CN 203082225U
Authority
CN
China
Prior art keywords
valve
stop valve
corrosion
rod
resistant
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 201320080682
Other languages
Chinese (zh)
Inventor
全文章
李顺明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Zhong Hao Marine Valve Manufacturing Co Ltd
Original Assignee
Jiangsu Zhong Hao Marine Valve Manufacturing Co Ltd
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 Jiangsu Zhong Hao Marine Valve Manufacturing Co Ltd filed Critical Jiangsu Zhong Hao Marine Valve Manufacturing Co Ltd
Priority to CN 201320080682 priority Critical patent/CN203082225U/en
Application granted granted Critical
Publication of CN203082225U publication Critical patent/CN203082225U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a corrosion-resistant quick closing stop valve which comprises a stop valve, a power cylinder and a manual emergency mechanism. The power cylinder comprises a piston, a piston rod, a cylinder cover connected with the stop valve, and unloading channels; the stop valve comprises a valve rod, a valve cover, a valve flap, a valve seat and a hand wheel; corrosion-resistant composite layers are arranged on sealing surfaces of the valve flap and the valve seat; an radial hinge pin is arranged on the side surface of the valve rod extending out of the valve cover; an upward raised boss is arranged in a position at which the valve cover is fit with the valve rod; an upward open slot is formed in the boss, and is matched with the hinge pin to form an axial positioning mechanism to form the manual emergency mechanism together with the hand wheel; the depth of the open slot is larger than the height of the valve rod, which is required to be raised when the stop valve is opened in emergency; and a compression spring is sleeved between the piston and the cylinder cover, so as to form an elastic reset mechanism. The corrosion-resistant quick closing stop valve has the advantages that the sealing surfaces of the valve flap and the valve seat have high corrosion resistance, the sealing performance is good, the service life is long, when abnormal conditions occur in the stop valve, the manual emergency operation is convenient and quick to implement, and the stop valve is stable to operate.

Description

Corrosion-resistant force fast-turn-off type stop valve
Technical field
The utility model relates to a kind of stop valve, and specifically, the utility model relates to a kind of quick closing valve stop valve.
Background technique
The quick closing valve stop valve is widely used in the pipe network of industrial and mining enterprise because of having characteristics such as easy to operate, quick.In the time of in the pipe network of carrying Korrosionsmedium, the flap of stop valve, sealing surface of seat can be subjected to the Korrosionsmedium corrosion and wear and tear fast, not only influence sealing effect, and working life are short; On the other hand, existing quick closing valve stop valve comprises stop valve, ram, is driven by ram and realizes opening or closing of stop valve.But existing quick closing valve stop valve is when running out of steam the source, can't normally realize opening or closing of stop valve, at this moment, after generally needing ram and stop valve taken apart, manual mobile stop valve valve rod opens or closes stop valve, this process is not only bothersome, and consuming time longer, may cause greater loss when the situation is critical.
The model utility content
The utility model proposes a kind of flap, sealing surface of seat good corrosion resistance at the deficiencies in the prior art, and when abnormal conditions appearred in stop valve, manual-operated emergent was easy to operate, quick, the corrosion-resistant force fast-turn-off type stop valve of reliable operation.
The utility model is achieved through the following technical solutions technical goal.
Corrosion-resistant force fast-turn-off type stop valve, it comprises stop valve, ram; Described ram comprises piston, piston rod and the cylinder cap that is connected with stop valve; Described ram two ends are provided with unloading channel; Described stop valve comprises valve rod, valve gap, flap, valve seat and handwheel, and described valve rod upwards runs through valve gap, is connected with handwheel; Its improvements are: described flap sealing surface is provided with corrosion-resistant composite bed, and sealing surface of seat is provided with corrosion-resistant composite bed; Described corrosion-resistant force fast-turn-off type stop valve also comprises manual-operated emergent mechanism; The valve rod side of stretching out described valve gap is provided with radially bearing pin; Described valve gap and valve rod cooperation place are provided with boss protruding upward, and boss is provided with opening slot upwards, cooperate formation axially locating mechanism with bearing pin, and constitute described manual-operated emergent mechanism with handwheel; The degree of depth of the described opening slot height that valve rod need rise during greater than the stop valve emergency opening; Suit pressure spring between described piston and cylinder cap constitutes flexible restoring organ.
As the preferred version of such scheme, described corrosion-resistant composite bed is the teflon composite bed.
The utility model compared with prior art has following good effect:
1. valve seat, flap sealing surface are provided with corrosion-resistant composite bed, make valve seat, flap sealing surface have corrosion resistance preferably, and have improved sealing and working life.
2. can realize the manual-operated emergent operation, easy to operate, quick.
3. manual translation mechanism is arranged on the valve gap, need not to change the ram structure, and is simple in structure, and sealing is reliable.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and in conjunction with the embodiments below.
Corrosion-resistant force fast-turn-off type stop valve shown in the drawings, it comprises stop valve 7, ram 9 and manual-operated emergent mechanism; Ram 9 comprises piston 9.2, piston rod 9.5 and the cylinder cap 9.4 that is connected with stop valve 7; Ram 9 two ends are provided with unloading channel 9.1; Stop valve 7 comprises valve rod 2, valve gap 5, flap 11, valve seat 12 and handwheel 1, and valve rod 2 upwards runs through valve gap 5, is connected with handwheel 1; In order to make valve seat 11, flap 12 sealing surfaces have corrosion resistance preferably, the utility model is provided with corrosion-resistant composite bed 14 on flap 11 sealing surfaces, valve seat 12 sealing surfaces are provided with corrosion-resistant composite bed 13, and in the present embodiment, corrosion-resistant composite bed 13 and 14 is the teflon composite bed.
Valve rod 2 sides of stretching out valve gap 5 are provided with radially bearing pin 3; Valve gap 5 is provided with boss protruding upward 4 with valve rod 2 cooperation places, and boss 4 is provided with opening slot 8 upwards, cooperates with bearing pin 3 to constitute axially locating mechanism, and constitutes manual-operated emergent mechanism with handwheel 1; The degree of depth of opening slot 8 during greater than stop valve 7 emergency openings valve rod 2 need the height that rises; Suit pressure spring 9.3 between piston 9.2 and cylinder cap 9.4 constitutes flexible restoring organ.
When something unexpected happened need be adjusted the working state of stop valve 7 immediately, open the unloading channel 9.1 at ram 9 two ends earlier, piston rod 9.5 is under the effect of pressure spring 9.3, be moved to the left, in the piston rod 9.5 withdrawal cylinder caps 9.4, when needing to open stop valve 7 by hand, mention handwheel 1 by hand, valve rod 2 is moved up together with bearing pin 3, when bearing pin 3 arrives boss 4 upper-end surfaces, handwheel 1 is rotated 40 °~90 °, unclamp handwheel 1, bearing pin 3 guarantees that bearing pin 3 and cooperating of boss 4 upper-end surfaces have coupling mechanism force under the effect of valve rod 2 lower end pressure springs 10; When the manual closed stop valve 7 of need, hand-turning handwheel 1 makes bearing pin 3 fall into opening slot 8 again, moves down under the effect of valve rod 2 lower end pressure springs 10, realizes the closure of stop valve 7.

Claims (2)

1. corrosion-resistant force fast-turn-off type stop valve, it comprises stop valve (7), ram (9); Described ram (9) comprises piston (9.2), piston rod (9.5) and the cylinder cap (9.4) that is connected with stop valve (7); Described ram (9) two ends are provided with unloading channel (9.1); Described stop valve (7) comprises valve rod (2), valve gap (5), flap (11), valve seat (12) and handwheel (1), and described valve rod (2) upwards runs through valve gap (5), is connected with handwheel (1); It is characterized in that: described flap (11) sealing surface is provided with corrosion-resistant composite bed (14), and valve seat (12) sealing surface is provided with corrosion-resistant composite bed (13); Described corrosion-resistant force fast-turn-off type stop valve also comprises manual-operated emergent mechanism; Valve rod (2) side of stretching out described valve gap (5) is provided with radially bearing pin (3); Described valve gap (5) and valve rod (2) cooperation place are provided with boss protruding upward (4), and boss (4) is provided with opening slot (8) upwards, cooperate formation axially locating mechanism with bearing pin (3), and constitute described manual-operated emergent mechanism with handwheel (1); The degree of depth of described opening slot (8) during greater than stop valve (7) emergency opening valve rod (2) need the height that rises; Suit pressure spring (9.3) between described piston (9.2) and cylinder cap (9.4) constitutes flexible restoring organ.
2. corrosion-resistant force fast-turn-off type stop valve according to claim 1 is characterized in that: described corrosion-resistant composite bed (13,14) is the teflon composite bed.
CN 201320080682 2013-02-21 2013-02-21 Corrosion-resistant quick closing stop valve Expired - Fee Related CN203082225U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320080682 CN203082225U (en) 2013-02-21 2013-02-21 Corrosion-resistant quick closing stop valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320080682 CN203082225U (en) 2013-02-21 2013-02-21 Corrosion-resistant quick closing stop valve

Publications (1)

Publication Number Publication Date
CN203082225U true CN203082225U (en) 2013-07-24

Family

ID=48828066

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320080682 Expired - Fee Related CN203082225U (en) 2013-02-21 2013-02-21 Corrosion-resistant quick closing stop valve

Country Status (1)

Country Link
CN (1) CN203082225U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106641372A (en) * 2015-10-29 2017-05-10 江苏中昊船用阀门制造有限公司 High pressure and corrosion resistant fast valve

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106641372A (en) * 2015-10-29 2017-05-10 江苏中昊船用阀门制造有限公司 High pressure and corrosion resistant fast valve

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130724

Termination date: 20150221

EXPY Termination of patent right or utility model