CN208123480U - A kind of gas fire-extinguishing facility selector valve - Google Patents

Abstract

The utility model relates to a kind of gas fire-extinguishing facility selector valves, it aims to solve the problem that and fills the gas with pressure in current cylinder component, in pressure, drive gas easy to damage to the impact force action lower cylinder component of piston plate, the technical issues of driving assembly of the pivoted arm rotation to drive shaft to rotate counterclockwise also easily damages is pushed by piston rod, including valve body, valve core rod, air inlet, gas outlet, cylinder assembly, driving assembly, the boss that valve is formed with core assembly is equipped at air inlet, it is used to reduce impact force when gas being driven to enter cylinder assembly to cylinder assembly in cylinder assembly equipped with spring, the utility model has structure simple, it is compact, the good advantage of air-tightness.

Description

A kind of gas fire-extinguishing facility selector valve

Technical field

The utility model relates to a kind of valve more particularly to a kind of gas fire-extinguishing facility selector valves.

Background technique

Selector valve is an important component in gas extinguishing system, be mounted on manifold trunk and guard plot fire extinction pipeline it Between, for controlling the on-off of fire-fighting fire extinguishing gas long-distance sand transport.In combination distribution fire extinguishing system, each guard plot is necessary It is equipped with a corresponding selector valve, when there is fire signal sending in guard plot, fire-extinguishing bottle corresponding with guard plot is opened Dynamic, gas successively opens the container value on corresponding selector valve and fire-extinguishing bottle along starting pipe, and extinguishing chemical is released, is gone out Fiery agent reaches manifold trunk along high-pressure hose, then is reached in the corresponding guard plot that fire occurs and put out a fire by selector valve, High pressure gas is often filled inside selector valve and selection valve member cylinder assembly during this, abruptly entering for high pressure gas can band Carry out an impact force, this impact force can aggravate the damage of selector valve.

Summary of the invention

The purpose of the utility model is to overcome the deficiencies in the prior art, adapt to reality and need, provide a kind of extinction using gas Equipment selector valve, to solve to fill the gas with pressure in current cylinder component, in gas to the impact masterpiece of piston plate With lower cylinder component it is easy to damage, driving assembly also pole of the pivoted arm rotation to drive shaft to rotate counterclockwise is pushed by piston rod Technical problem easy to damage.

In order to realize that the purpose of this utility model, technical solution used by the utility model be：

Design a kind of gas fire-extinguishing facility selector valve, including valve body, cylinder assembly；Told valve body includes being located under valve body The air inlet of end, the gas outlet on the left of valve body, the cylinder assembly on the right side of valve body, the spool positioned at valve inner Bar, the valve body further include the pressure-pad being threadedly coupled with valve body upper end, the driving assembly on pressure-pad, the valve core rod Upper end is slidably connected in pressure-pad；The driving component includes pressure arm, adjusts screw, handle, shaft, pivoted arm and spring leaf；Institute It states adjusting screw lower thread to be connected in pressure arm, adjusts the lower end of screw through pressure arm and be pressed in the valve core rod in pressure-pad Upper surface, and one end of pressure arm is rotatably connected on pressure-pad by pin shaft, movable end is step-like.

Further, spring leaf is equipped between the movable end and pressure-pad of pressure arm, one end of the spring leaf is connected to pressure-pad On, the other end is pushed against the bottom of pressure arm movable end and applies upward elastic force to it, and the handle is connected in shaft, with position It is semicircle or D-shaped compression piece that the end of shaft above the movable end of pressure arm, which is equipped with section, compresses the central point of piece Positioned at the underface of spindle central point, the movable end of pressure arm compresses the movable end ledge surface of pressure arm simultaneously by compressing the lower end of piece Pressure arm is locked, the upper end of pivoted arm is fixedly connected with shaft and shaft can be driven to rotate, and further includes by the pivoted arm to cylinder side To the torsional spring of springing, torsional spring is installed in fixing axle, and one end is connect with pivoted arm.

Further, the cylinder assembly includes positioned at the driving gas access of cylinder assembly lower end, positioned at cylinder assembly The driving gas vent on right side further includes piston plate and piston rod inside cylinder assembly, is equipped in the cylinder assembly Spring, on the piston rod, one end of spring is against cylinder assembly upper end to the spring pocket, and the other end is against on piston plate, institute Piston rod is stated through spring and is extend out to outside cylinder assembly, the lower end of pivoted arm and the piston rod end being located at outside cylinder assembly It pushes against.

Further, boss is equipped at the air inlet, the boss is equipped with recessed at cylindrical shape, the boss upper end Slot, groove is interior to be equipped with sealing ring one, and the lower end of valve core rod can be against on sealing ring one.

Further, the piston plate outer wall is equipped with sealing ring two.

The beneficial effects of the utility model are：

1. the utility model structure is simple, compact, leakproofness is strong, has prevented selector valve gas leakage and existing security risk.

2. the utility model, spring design in cylinder assembly can effectively slow down piston rod because being driven gas Impact force and move one acceleration of bring suddenly, to reduce piston rod to the impact force of pivoted arm, shaft, reduce driving group The strain of part extends their service life.

3. the utility model also has the advantages that other, will be proposed together with corresponding structure in embodiment.

Detailed description of the invention

Fig. 1 is the utility model positive structure schematic；

Fig. 2 is the utility model side structure schematic diagram；

Fig. 3 is the schematic diagram of the section structure of the utility model Fig. 1；

Fig. 4 is the schematic diagram of the section structure of upper end in the utility model Fig. 2；

Fig. 5 is that the utility model shaft half-round locks pressure arm structural schematic diagram；

Fig. 6 is that the utility model shaft half-round unclamps pressure arm structural schematic diagram；

Fig. 7 is the utility model cylinder assembly the schematic diagram of the section structure；

In figure：1. valve body；2. core assembly；3. sealing ring one；4. adjusting screw；5. handle；6. nut；7. pressure arm；8. Pivoted arm；9. cylinder assembly；10. boss；11. shaft；12. pin shaft；13. pressure-pad；14. spring leaf；15. compressing piece central point；16. Spindle central point；17. piston rod；18. spring；19. piston plate；20. sealing ring two；21. torsional spring；22. locating shaft；23. compressing Piece.

101. air inlet；102. gas outlet；103. driving gas vent；104. driving gas access.

Specific embodiment

The present invention will be further described with reference to the accompanying drawings and examples：

Embodiment 1：A kind of gas fire-extinguishing facility selector valve, referring to Fig. 1-Fig. 7；Including valve body 1, air inlet 101, outlet Mouth 102, cylinder assembly 9；Told valve body 1 includes positioned at the air inlet 101 of 1 lower end of valve body, positioned at the gas outlet in 1 left side of valve body 102, the cylinder assembly 9 positioned at the right side of valve body 1, the valve core rod 2 inside valve body 1, the valve body 1 further include on valve body 1 Pressure-pad 13, the driving assembly on pressure-pad 13 of end thread connection, the upper end of the valve core rod 2 is slidably connected at pressure-pad 13 It is interior；The driving component includes pressure arm 7, adjusts screw 4, handle 5, shaft 11, pivoted arm 8 and spring leaf 14；The adjusting screw 4 Lower thread is connected in pressure arm 7, adjusts 2 upper end of valve core rod that the lower end of screw 4 is run through pressure arm 7 and is pressed in pressure-pad 13 Face, and one end of pressure arm 7 is rotatably connected on pressure-pad 13 by pin shaft 12, movable end is step-like.

Further, spring leaf 14 is equipped between the movable end of pressure arm 7 and pressure-pad 13, one end of the spring leaf 14 connects On pressure-pad 13, the other end is pushed against the bottom of 7 movable end of pressure arm and applies upward elastic force to it, and the handle 5 is connected to In shaft 11, it is semicircle or D-shaped compression piece that the end of the shaft 11 above the movable end of pressure arm 7, which is equipped with section, 23, the central point 15 for compressing piece is located at immediately below the central point 16 of shaft, and the movable end of pressure arm 7 is supported by compressing the lower end of piece 23 It presses the movable end ledge surface of pressure arm 7 and pressure arm 7 is locked, the upper end of pivoted arm 8 is fixedly connected with shaft 11 and can drive shaft 11 rotations, further include the torsional spring 21 by the pivoted arm 8 to the springing of cylinder direction, torsional spring 21 is installed in fixing axle 22, one end It is connect with pivoted arm 8.

Further, the cylinder assembly 9 includes positioned at the driving gas access 104 of 9 lower end of cylinder assembly, positioned at cylinder Driving gas vent 103 on the right side of component further includes piston plate 19 and piston rod 17 inside cylinder assembly 9, the gas Spring 18 is equipped in cylinder component 9, for 18 sets of the spring on piston rod 17, one end of spring 18 is against 9 upper end of cylinder assembly, The other end is against on piston plate, and the piston rod 17 is through spring 18 and extend out to outside cylinder assembly, the lower end and position of pivoted arm 8 The end of piston rod 17 outside cylinder assembly 9 pushes against.

Further, boss 10 is equipped at the air inlet 101, the boss 10 is at cylindrical shape, 10 upper end of boss Portion is equipped with groove, is equipped with sealing ring 1 in groove, and the lower end of valve core rod 2 can be against on sealing ring 1, and effect is to prevent gas Body damages sealing ring 1 to influence the air-tightness in valve body 1, when valve core rod 2 is under the pressure difference effect in air inlet 101 It moves upwards, gas flows to gas outlet 102 from the gap location between 2 lower end of air inlet 101 and valve core rod, from gas outlet 102 It goes out.

Further, 19 outer wall of piston plate is equipped with sealing ring 20, and effect is airtight in enhancing cylinder assembly 9 Property, prevent gas from flowing away from the gap between 9 inner wall of piston plate 19 and cylinder assembly, to influence the power of piston rod.

The design uses principle, and when receiving fire alarm, driving gas enters air cylinder group from driving gas access 104 In part 9, match plate 19 movement living is pushed to drive the outward movment together of piston rod 17, at this point, spring 18 can effectively reduce because driving Body of taking offence abruptly enters the impact force that piston rod 17 is subject to, and damages to reduce impact force driving assembly bring, extends and drive The service life of dynamic component.

Later, the rotation of pivoted arm 8 is pushed to drive shaft 11 to rotate counterclockwise or pull 5 band of handle by piston rod 17 Turn axis 11 rotates counterclockwise, and 11 end of shaft compresses the release of piece 23 to the active force of pressure arm 7, makees in the elastic force of spring leaf 14 There is the trend of rotating counterclockwise with hold 7, adjusting screw 4 is made to lose the pressure to 2 upper end of valve core rod, while valve core rod 2 It is moved up under the action of 101 internal pressure differences of air inlet, gas is from the gap between 2 lower end of air inlet 101 and valve core rod Gas outlet 102 is flowed to, is gone out from gas outlet 102；Complete work；Then screw 4 is adjusted to depress simultaneously 2 head of valve core rod Pressure arm 7 is depressed, overcomes the elastic force of spring leaf 14 to act on, 7 step end of pressure arm is made to enter 23 lower end of compression piece of 11 end of shaft After realize automatically lock, the lower end of valve core rod 2 is against on sealing ring 1.

It should be noted that：

1. the underface that piece central point 15 is located at spindle central point 16 is compressed in the design, when shaft 11 rotates counterclockwise When, the lower end for compressing piece 23 could unclamp the active force to 7 movable end ledge surface of pivoted arm, act in the elastic force of spring leaf 14 Hold 7 also rotates counterclockwise the pressure for losing adjusting screw 4 to 2 upper surface of valve core rod, while valve core rod 2 is in air inlet It is moved up under the action of 101 internal pressure differences, gap location flow direction of the gas between air inlet 101 and the lower end of valve core rod 2 Gas outlet 102 is gone out from gas outlet 102；When shaft 11 rotates clockwise, it is located at spindle central due to compressing piece central point 15 The underface of point 16, the lower end for compressing piece 23 can just be pushed against on the ledge surface of 7 movable end of pressure arm, lock to pressure arm 7 Extremely, so that locked valve core rod 2 is against the lower end of valve core rod 2 on sealing ring 1.

2. spring 18 is equipped in the design in cylinder assembly 9, when driving gas to abruptly enter from driving gas access 104 Biggish impact force can be brought, this impact force can bring damage to driving assembly, at this time by piston plate 19, piston rod 17 Since the elastic force of spring 18 acts on, bring impact force is further decreased when making that gas is driven to abruptly enter, to reduce cylinder The damage of component 9, driving assembly drives gas from driving when driving gas that piston plate 19 is pushed through driving gas vent 103 Gas vent 103 is gone out.

What the embodiments of the present invention were announced is preferred embodiment, and however, it is not limited to this, the common skill of this field Art personnel understand the spirit of the utility model easily according to above-described embodiment, and make different amplification and variation, but as long as The spirit of the utility model is not departed from, it is all within the protection scope of the present utility model.

Claims (3)

1. a kind of gas fire-extinguishing facility selector valve, including valve body (1), air inlet (101), gas outlet (102), cylinder assembly (9)；Told valve body (1) includes the air inlet (101) positioned at valve body (1) lower end, the gas outlet on the left of valve body (1) (102), it is located at the cylinder assembly (9) on the right side of valve body (1), is located at valve body (1) internal valve core rod (2), the valve body (1) is also wrapped The driving assembly for including the pressure-pad (13) being threadedly coupled with valve body (1) upper end, being located on pressure-pad (13), the valve core rod (2) Upper end is slidably connected in pressure-pad (13)；It is characterized in that：

The driving component includes pressure arm (7), adjusts screw (4), handle (5), shaft (11), pivoted arm (8) and spring leaf (14)； Adjusting screw (4) lower thread is connected in pressure arm (7), and the lower end for adjusting screw (4), which is run through pressure arm (7) and is pressed in, to be located at Valve core rod (2) upper surface in pressure-pad (13), and one end of pressure arm (7) is rotatably connected on pressure-pad (13) by pin shaft (12), Its movable end be it is step-like, equipped with spring leaf (14) between the movable end and pressure-pad (13) of pressure arm (7), the spring leaf (14) One end is connected on pressure-pad (13), and the other end is pushed against the bottom of pressure arm (7) movable end and applies upward elastic force to it；

The handle (5) is connected on shaft (11), and the end for being located at the shaft (11) above pressure arm (7) movable end, which is equipped with, to be cut Face is semicircle or D-shaped compression piece (23), compress piece central point (15) be located at shaft central point (16) underface, press The movable end of arm (7) compresses the movable end ledge surface of pressure arm (7) by the lower end of compression piece (23) and locks to pressure arm (7), The upper end of pivoted arm (8) is fixedly connected with shaft (11) and shaft (11) can be driven to rotate, and further includes by the pivoted arm (8) to cylinder The torsional spring (21) of direction springing, torsional spring (21) are installed on fixing axle (22), and one end is connect with pivoted arm (8)；

The cylinder assembly (9) includes positioned at the driving gas access (104) of cylinder assembly (9) lower end, positioned at the cylinder assembly right side The driving gas vent (103) of side further includes being located at cylinder assembly (9) internal piston plate (19) and piston rod (17), described Spring (18) are equipped in cylinder assembly (9), the spring (18) covers on piston rod (17), and one end of spring (18) is against cylinder Component (9) upper end, the other end are against on piston plate, and the piston rod (17) is through spring (18) and extend out to outside cylinder assembly The end in portion, the lower end of pivoted arm (8) piston rod (17) external with cylinder assembly (9) are located at pushes against.

2. a kind of gas fire-extinguishing facility selector valve as described in claim 1, it is characterised in that：At the air inlet (101) Equipped with boss (10), for the boss (10) at cylindrical shape, boss (10) upper end is equipped with groove, is equipped with sealing ring in groove The lower end of one (3), valve core rod (2) can be against on sealing ring one (3).

3. a kind of gas fire-extinguishing facility selector valve as described in claim 1, it is characterised in that：Piston plate (19) outer wall It is equipped with sealing ring (20).