CN103671977A - Fire control stop valve with limiting and protecting device - Google Patents
Fire control stop valve with limiting and protecting device Download PDFInfo
- Publication number
- CN103671977A CN103671977A CN201310486164.5A CN201310486164A CN103671977A CN 103671977 A CN103671977 A CN 103671977A CN 201310486164 A CN201310486164 A CN 201310486164A CN 103671977 A CN103671977 A CN 103671977A
- Authority
- CN
- China
- Prior art keywords
- mandrel
- limiting
- stop valve
- protecting device
- push rod
- 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.)
- Pending
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/02—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces with screw-spindle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K1/00—Lift valves or globe valves, i.e. cut-off apparatus with closure members having at least a component of their opening and closing motion perpendicular to the closing faces
- F16K1/32—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
Abstract
The invention relates to a fire control stop valve with a limiting and protecting device. The fire control strop valve with the limiting and protecting device comprises a stop valve body, the stop valve body is assembled with a guide nut, a sealing sleeve and a guide sleeve in a matching mode, the guide nut and a screw rod are assembled in a matching mode, the sealing sleeve and a mandrel are assembled in a matching mode, the mandrel and a gland are assembled in a matching mode, the screw rod is assembled with a star-shaped handle, an O-shaped sealing ring and an ejector rod in a matching mode, and the ejector rod and a valve seat are assembled in a matching mode. Through the adoption of the technical scheme, the fire control strop valve with the limiting and protecting device is good adjusting performance, capable of preventing part damage caused by the over traveling of the screw rod, also capable of preventing the ejector rod from jumping out of the screw rod, simple in structure, and convenient to manufacture and maintain.
Description
Technical field
The present invention relates to fire-fighting domain, be specifically related to the fire-fighting stop valve with limiting and protecting device.
Background technique
In fire control and disaster rescue field, essential by the put out a fire mode of smoke abatement of water spray, injection intensity during for the disaster relief, required hydraulic pressure will be very large, and in used time not at ordinary times, need a kind of stop valve to block this high-pressure water, fire personnel blocks current by turning the handgrip of stop valve, but because hydraulic pressure is too high, add the mechanical structure restriction of stop valve self, the power that turns needing is very large, fire personnel is not easy to control this power, often overexertion, cause the part of stop valve inside impaired, thereby reduce working life, to often change stop valve, improve fire-fighting maintenance cost, if design a kind of stop valve with being limited to protective gear, can avoid the topic of question above.
Summary of the invention
The object of the invention is to overcome the problem that prior art exists, the fire-fighting stop valve with limiting and protecting device is provided.
For realizing above-mentioned technical purpose, reach above-mentioned technique effect, the present invention is achieved through the following technical solutions:
Fire-fighting stop valve with limiting and protecting device; comprise checking-valve body; described checking-valve body coordinates installation with spigot nut, stuffing box gland and guide pin bushing; described spigot nut coordinates installation with screw mandrel; described stuffing box gland coordinates installation with mandrel; described mandrel coordinates installation with gland, described screw mandrel coordinates installation with star-like handle, " O " RunddichtringO, push rod, and described push rod coordinates installation with valve base.
Further, the square opening of described star-like handle coordinates with the square region of described screw mandrel axle head, and is fixed on axle head by acorn nut.
Further, described guide pin bushing and described checking-valve body are threaded connection, and described mandrel and described gland are interference fit, between described gland and mandrel, by little spring, described mandrel are being withstood on described screw mandrel.
Further, described mandrel and described screw mandrel are orthogonal.
Further, the right end of described screw mandrel withstands described push rod by push rod spring, and the left end of described push rod spring and described push rod is enclosed in connecting bushing by locking nut.
Further, between described locking nut and described connecting bushing, external teeth serrated lock washer is installed.
Further, described push rod is connected with described valve base by cotter pin, and non-metallic insert hexagonal locking nut fixedly rubber sheet gasket and compressing tablet are passed through in described valve base right side.
The invention has the beneficial effects as follows:
Adopt technical solution of the present invention, not only good seal performance, and adjusting function is good, can prevent that the screw mandrel excess of stroke from causing damage parts, also can prevent that push rod from jumping out screw mandrel, and simple in structure, manufactures and keep in repair more convenient.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Number in the figure explanation: 1, checking-valve body, 2, spigot nut, 3, stuffing box gland, 4, guide pin bushing, 5, screw mandrel, 6, mandrel, 7, gland, 8, star-like handle, 9, " O " RunddichtringO, 10, push rod, 11, valve base, 12, acorn nut, 13, little spring, 14, push rod spring, 15, locking nut, 16, connecting bushing, 17, external teeth serrated lock washer, 18, cotter pin, 19, non-metallic insert hexagonal locking nut, 20, rubber sheet gasket, 21, compressing tablet.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the present invention in detail.
Shown in Fig. 1; fire-fighting stop valve with limiting and protecting device; comprise checking-valve body 1; described checking-valve body 1 coordinates installation with spigot nut 2, stuffing box gland 3 and guide pin bushing 4, and described spigot nut 2 coordinates installation with screw mandrel 5, it is characterized in that; described stuffing box gland 3 coordinates installation with mandrel 6; described mandrel 6 coordinates installation with gland 7, and described screw mandrel 5 coordinates installation with star-like handle 8, " O " RunddichtringO 9, push rod 10, and described push rod 10 coordinates installation with valve base 11.
Further, the square opening of described star-like handle 8 coordinates with the square region of described screw mandrel 5 axle heads, and is fixed on axle head by acorn nut 12.
Further, described guide pin bushing 4 is threaded connection with described checking-valve body 1, and described mandrel 6 is interference fit with described gland 7, between described gland 7 and mandrel 6, by little spring 13, described mandrel 6 is being withstood on described screw mandrel 5.
Further, described mandrel 6 is orthogonal with described screw mandrel 5.
Further, the right end of described screw mandrel 5 withstands described push rod 10 by push rod spring 14, and the left end of described push rod spring 14 and described push rod 10 is enclosed in connecting bushing 16 by locking nut 15.
Further, between described locking nut 15 and described connecting bushing 16, external teeth serrated lock washer 17 is installed.
Further, described push rod 10 is connected with described valve base 11 by cotter pin 18, and non-metallic insert hexagonal locking nut 19 fixedly rubber sheet gasket 20 and compressing tablet 21 are passed through in described valve base 11 right sides.
Principle of the present invention:
When the star-like handle 8 that turns this stop valve dams; Vertical direction at screw mandrel 5 is withstood screw mandrel 5 by stressed little spring 13 by mandrel 6; play position-limiting action to prevent the excessive damage that causes component of screw mandrel 5 displacements; meanwhile, the end of screw mandrel 5, by locking nut 15, can play the position-limiting action to push rod 10; to prevent push rod 10, jump out screw mandrel 5; wherein push rod spring 14 plays a protective role, and to prevent stressed excessive between external teeth serrated lock washer 17 and flange, causes damage.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (7)
1. with the fire-fighting stop valve of limiting and protecting device; comprise checking-valve body (1); described checking-valve body (1) coordinates installation with spigot nut (2), stuffing box gland (3) and guide pin bushing (4); described spigot nut (2) coordinates installation with screw mandrel (5); it is characterized in that; described stuffing box gland (3) coordinates installation with mandrel (6); described mandrel (6) coordinates installation with gland (7); described screw mandrel (5) coordinates installation with star-like handle (8), " O " RunddichtringO (9), push rod (10), and described push rod (10) coordinates installation with valve base (11).
2. the fire-fighting stop valve with limiting and protecting device according to claim 1, is characterized in that, the square opening of described star-like handle (8) coordinates with the square region of described screw mandrel (5) axle head, and is fixed on axle head by acorn nut (12).
3. the fire-fighting stop valve with limiting and protecting device according to claim 1; it is characterized in that; described guide pin bushing (4) is threaded connection with described checking-valve body (1); described mandrel (6) is interference fit with described gland (7), between described gland (7) and mandrel (6), by little spring (13), described mandrel (6) is withstood on described screw mandrel (5).
4. the fire-fighting stop valve with limiting and protecting device according to claim 3, is characterized in that, described mandrel (6) is orthogonal with described screw mandrel (5).
5. the fire-fighting stop valve with limiting and protecting device according to claim 1; it is characterized in that; the right end of described screw mandrel (5) withstands described push rod (10) by push rod spring (14), and the left end of described push rod spring (14) and described push rod (10) is enclosed in connecting bushing (16) by locking nut (15).
6. the fire-fighting stop valve with limiting and protecting device according to claim 5, is characterized in that, between described locking nut (15) and described connecting bushing (16), external teeth serrated lock washer (17) is installed.
7. the fire-fighting stop valve with limiting and protecting device according to claim 1; it is characterized in that; described push rod (10) is connected with described valve base (11) by cotter pin (18), and non-metallic insert hexagonal locking nut (19) fixedly rubber sheet gasket (20) and compressing tablet (21) are passed through in described valve base (11) right side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310486164.5A CN103671977A (en) | 2013-10-17 | 2013-10-17 | Fire control stop valve with limiting and protecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310486164.5A CN103671977A (en) | 2013-10-17 | 2013-10-17 | Fire control stop valve with limiting and protecting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103671977A true CN103671977A (en) | 2014-03-26 |
Family
ID=50310386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310486164.5A Pending CN103671977A (en) | 2013-10-17 | 2013-10-17 | Fire control stop valve with limiting and protecting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103671977A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107208811A (en) * | 2015-02-06 | 2017-09-26 | 穆勒国际有限公司 | Main valve with flute profile internal rigid structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4249717A (en) * | 1979-10-17 | 1981-02-10 | Elkhart Brass Manufacturing Co., Inc. | Seal for a liquid valve |
| DE19631364A1 (en) * | 1995-08-07 | 1997-02-13 | Widenmann Max Armaturen | Pressure valve with housing and valve disc on end of rod - has hollow piston attached to valve disc and held in cylindrical part of valve housing |
| CN2254494Y (en) * | 1995-03-11 | 1997-05-21 | 率尊成 | Anti-leak stop valve |
| CN101761655A (en) * | 2009-11-20 | 2010-06-30 | 卓旦春 | Flow control fire protection valve |
| CN202851991U (en) * | 2012-10-29 | 2013-04-03 | 施尧尧 | Novel fire valve |
-
2013
- 2013-10-17 CN CN201310486164.5A patent/CN103671977A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4249717A (en) * | 1979-10-17 | 1981-02-10 | Elkhart Brass Manufacturing Co., Inc. | Seal for a liquid valve |
| CN2254494Y (en) * | 1995-03-11 | 1997-05-21 | 率尊成 | Anti-leak stop valve |
| DE19631364A1 (en) * | 1995-08-07 | 1997-02-13 | Widenmann Max Armaturen | Pressure valve with housing and valve disc on end of rod - has hollow piston attached to valve disc and held in cylindrical part of valve housing |
| CN101761655A (en) * | 2009-11-20 | 2010-06-30 | 卓旦春 | Flow control fire protection valve |
| CN202851991U (en) * | 2012-10-29 | 2013-04-03 | 施尧尧 | Novel fire valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107208811A (en) * | 2015-02-06 | 2017-09-26 | 穆勒国际有限公司 | Main valve with flute profile internal rigid structure |
| CN107208811B (en) * | 2015-02-06 | 2019-11-26 | 穆勒国际有限公司 | Main valve with flute profile internal rigid structure |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20140326 |