CN206234416U - A kind of rotary safe valve for bus - Google Patents
A kind of rotary safe valve for bus Download PDFInfo
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- CN206234416U CN206234416U CN201621144158.7U CN201621144158U CN206234416U CN 206234416 U CN206234416 U CN 206234416U CN 201621144158 U CN201621144158 U CN 201621144158U CN 206234416 U CN206234416 U CN 206234416U
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- valve body
- spring
- die cavity
- exhaust
- rotary
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Abstract
The utility model discloses a kind of rotary safe valve for bus, including valve body, bonnet and rotary switch.The first die cavity and the second die cavity for interconnecting are provided with valve body, valve body is provided with air inlet, exhaust outlet, gas returning port and working hole；Valve rod is provided with first die cavity, fixed valve body is provided with the second die cavity, fixed valve body is provided with airflow hole；When rotary switch is closed, valve rod is moved down, air inlet is connected with working hole, is closed between gas returning port and exhaust outlet, and gas enters fixed valve body from air inlet through the first die cavity, then working hole is entered through airflow hole, car door slowly closing, prevents from clipping to people or thing, when air pressure reaches 8kg in fixed valve body, gas is directly entered working hole, and car door is closed rapidly.When bus is in an emergency, rotary switch is opened, moved on valve rod, closed between air inlet and working hole, gas is not entered back into, connected between gas returning port and exhaust outlet, the outspoken speed of gas cooled via return air is discharged from exhaust outlet, car door opening.
Description
Technical field
The utility model is related to vehicle safety valve field, more particularly to a kind of rotary safe valve for bus.
Background technology
At present in city, bus is the main means of transport of passenger flow transport, and its safety problem is mostly important.In recent years
Come, when bus is in an emergency, cause the situation of heavy losses can be found everywhere because car door cannot be opened in time.It is existing
Bus on pop safety valve has all been installed, the emergency self-saving that is used switch is all that electromagnetic principle is designed, by one
The handle of individual similar electric fan driving switch, after rotation process, by the switching of gear, control magnet coil obtains dead electricity, from
And the unloading electromagnetic valve being attached thereto is acted, so as to open car door.Although this kind of switch is easy to operate, once it is subjected to height
Temperature clashes, and switch reliability can be caused not enough, it is impossible to open car door rapidly.
Utility model content
In view of the shortcomings of the prior art and defect, there is provided a kind of rotary safe valve for bus, opened by rotation
Close, control car door to open rapidly manually.
To achieve the above object, the utility model provides following technical scheme：
A kind of rotary safe valve for bus, including valve body, bonnet and rotary switch；
The bonnet is located at body top；
The rotary switch is located on bonnet, and rotary switch includes the shield of rotary-type component and the rotary-type component of support,
The rotary switch and bonnet are fixedly connected on the valve body by soket head cap screw；
The first die cavity and the second die cavity are provided with the valve body, valve body is provided with gas returning port and working hole；First type
It is provided with valve rod in chamber, valve rod in two ends are thick, middle fine texture, support and be located at rotary switch by valve rod one end, the valve rod other end is provided with the
One spring, the first spring one end is supported and is located at valve rod, and the other end of the first spring is supported and is located at the first cavity bottom, and the valve rod is arranged
There is spacer component, valve body is provided with the air inlet and exhaust outlet connected with the first die cavity；
Upper chamber, middle gas chamber and lower chamber are provided with second die cavity, stationary bushing is provided with the upper chamber, Gu
Determine bushing one end and be fixedly connected on the second die cavity, the other end of stationary bushing is provided with exhaust liner, stationary bushing and exhaust liner
Between form upper air cavity, second spring is arranged with exhaust liner, second spring one end is provided with exhaust pition, second spring one end
Supported to the other end located at exhaust liner, second spring and be located at exhaust pition, inlet piston is provided with the lower chamber, air inlet is lived
The 3rd spring is provided with plug, the 3rd spring is fixedly connected on lower chamber by spring base, and one end of the 3rd spring is supported and is located at air inlet
Piston, the other end of the 3rd spring is supported and is located at spring base, and the middle gas chamber is provided with fixed valve body, it is characterised in that：It is described solid
Determine valve body and be provided with airflow hole, fixed valve body one end is connected to inlet piston, and the other end of fixed valve body is connected to exhaust pition,
Gas returning port is connected with upper air cavity, and working hole is connected with middle gas chamber；First connected with upper air cavity is provided with first die cavity
Passage and the second channel connected with middle gas chamber；
When rotary switch is closed, valve rod is moved down, and air inlet is through the first die cavity, second channel, middle gas chamber and working hole
Connection, moves on exhaust pition and is fitted close with exhaust liner, is closed between gas returning port and exhaust outlet；When rotary switch is opened,
Moved on valve rod, closed between air inlet and working hole, exhaust pition resets in the presence of second spring, and gas returning port is through upper gas
Chamber, first passage, the first die cavity are connected with exhaust outlet.
Further, the spacer component includes bushing, upper spacer, middle spacer sleeve, lower spacer, and the 4th bullet is provided with bushing
Spring, the 4th spring one end is supported and is located at the first die cavity upper end, and the other end of the 4th spring is supported and is located at bushing.
Further, pad is provided between bushing and upper spacer, pad is provided between middle spacer sleeve and lower spacer.
Further, E shapes are equipped between bushing and upper spacer, upper spacer and middle spacer sleeve, middle spacer sleeve and lower spacer
Circle.
Further, sealing gasket is provided between second spring and exhaust pition.
Further, vulcanized rubber mat is provided between fixed valve body and inlet piston.
Further, inlet piston is arranged with y-shaped ring with exhaust pition.
Further, valve body is provided with the adjusting screw connected with the first die cavity, and adjusting screw is arranged with O-ring.
Further, fixed valve body, exhaust liner, stationary bushing are arranged with O-ring.
Further, supporting plate is provided with shield, valve body is fixedly connected on by pan head screw.
The utility model has the beneficial effect that：The first die cavity and the second die cavity are provided with valve body, valve rod are provided with the first die cavity,
Valve rod in two ends are thick, middle fine texture, support and be located at rotary switch, and valve body is provided with the air inlet connected with the first die cavity by valve rod one end
Mouth and exhaust outlet；Upper chamber, middle gas chamber and lower chamber are provided with second die cavity, stationary bushing, fixed lining are provided with upper chamber
Set one end is provided with exhaust liner, and upper air cavity is formed between stationary bushing and exhaust liner, and second spring is arranged with exhaust liner,
Second spring one end is provided with exhaust pition, and inlet piston is provided with lower chamber, and the 3rd spring, the centre are provided with inlet piston
Air chamber is provided with fixed valve body, and fixed valve body is provided with airflow hole, and fixed valve body one end is connected to inlet piston, and the other end is connected to
Exhaust pition, valve body is provided with the gas returning port connected with upper chamber and the working hole connected with middle gas chamber：Set in first die cavity
There are the first passage connected with upper chamber and the second channel connected with middle gas chamber, when rotary switch is closed, valve rod is moved down,
Air inlet is opened, and gas enters fixed valve body through air inlet, the first die cavity, second channel, and air pressure rises in fixed valve body, is promoted
Moved on exhaust pition, exhaust pition is fitted close with exhaust liner, closed between gas returning port and exhaust outlet, meanwhile, fixed valve body
Interior gas enters working hole through airflow hole, car door slowly closing, and when air pressure reaches 8kg in fixed valve body, inlet piston is moved down,
Working hole is directly connected with fixed valve body, and gas directly enters working hole from fixed valve body, and car door is closed rapidly.Work as rotary switch
During unlatching, moved on valve rod, closed between air inlet and working hole, gas is not entered back into, inlet piston and exhaust pition reset, and return
Gas port is connected through upper air cavity, first passage, the first die cavity with exhaust outlet, and the outspoken speed of gas cooled via return air is arranged from exhaust outlet in valve body
Go out, car door opening.Car door starts slowly closing, can effectively prevent from crushing passenger or clip to article, when air pressure reaches in fixed valve body
During to 8kg, car door can be closed rapidly, shorten the time.When bus is in an emergency, passengers inside the car open rotary switch,
Just car door can be allowed to open rapidly, it is to avoid cause damage.
Brief description of the drawings
Fig. 1 is valve inner structural representation of the present utility model；
Fig. 2 is rotary switch structure schematic diagram of the present utility model.
In figure, 1. valve body；2. spring base；3. the 3rd spring；4. inlet piston；5.Y shape sealing rings；6. vulcanized rubber mat；
7. fixed valve body；8. airflow hole；9. working hole, 10. exhaust pition；11. sealing gaskets；12. second springs；13. gas returning ports；14.
Exhaust liner；15. stationary bushings；16. rotary-type components；17. valve rods；18. the 4th springs；19. bushings；20. pads；21. rows
Gas port；22.E shape circles；Air cavity on 23.；24. adjusting screws 24；Spacer sleeve in 25.；26. air inlets；27. times spacers；28. first
Spring；29. first passages；30. second channels；Spacer on 31.；32. bonnets；33. soket head cap screws；34. pan head screws；35.
Shield.
Specific embodiment
With reference to accompanying drawing to the further explaination of the utility model.
Referring to a kind of rotary safe valve for bus shown in Fig. 1, Fig. 2, including valve body 1, bonnet 32 and rotation
Switch；
The bonnet 32 is located at the top of valve body 1；
The rotary switch is located on bonnet 32, and rotary switch includes rotary-type component 16 and supports rotary-type component 16
Shield 35, the rotary switch and bonnet 32 are fixedly connected on the valve body 1 by soket head cap screw 33；
It is provided with the first die cavity and the second die cavity in the valve body 1, valve body 1 is provided with gas returning port 13 and working hole 9, described the
It is provided with valve rod 17 in one die cavity, valve rod 17 in two ends are thick, middle fine texture, support and be located at rotary switch, valve rod 17 by the one end of valve rod 17
The other end be provided with the first spring 28, the one end of the first spring 28 is supported and is located at valve rod 17, and the other end of the first spring 28 is supported located at the
One cavity bottom, the valve rod 17 is arranged with spacer component, and the spacer component includes bushing 19, upper spacer 31, middle spacer sleeve
25th, the 4th spring 18 is provided with lower spacer 27, bushing 19, the one end of the 4th spring 18 is supported and is located at the first die cavity upper end, the 4th spring
18 other end is supported and is located at bushing 19, and the 4th spring 18 is used to allow bushing 19 and upper spacer 31 to contact even closer, bushing 19 with
Pad 20 is provided between upper spacer 31, pad 20 is provided between middle spacer sleeve 25 and lower spacer 27, bushing 19 and upper spacer 31, on
E shapes circle 22 is equipped between spacer 31 and middle spacer sleeve 25, middle spacer sleeve 25 and lower spacer 27, valve body 1 is provided with and the first type
The air inlet 26 and exhaust outlet 21 of chamber connection, pad 20 and E shapes circle 22 are used to allow spacer component better tightness, and gas does not occur
Leakage；
Upper chamber, middle gas chamber and lower chamber are provided with second die cavity, stationary bushing 15 are provided with the upper chamber,
The one end of stationary bushing 15 is fixedly connected on the second die cavity, and the other end of stationary bushing 15 is provided with exhaust liner 14, stationary bushing 15
Upper air cavity 23 is formed and exhaust liner 14 between, second spring 12 is arranged with exhaust liner 14, the one end of second spring 12 is provided with
Exhaust pition 10, is provided with sealing gasket 11 between second spring 12 and exhaust pition 10, the one end of second spring 12 is supported and served as a contrast located at exhaust
Set 14, the other end of second spring 12 is supported and is located at sealing gasket 11, is used to allow sealing gasket 11 to contact even closer with exhaust pition 10.
It is provided with the lower chamber and the 3rd spring 3 is provided with inlet piston 4, inlet piston 4, the 3rd spring 3 is fixed by spring base 2 and connected
Lower chamber is connected to, one end of the 3rd spring 3 is supported and is located at inlet piston 4, and the other end of the 3rd spring 3 is supported and is located at spring base 2, the 3rd
Spring 3 is used to support inlet piston 4, and the middle gas chamber is provided with fixed valve body 7, and fixed valve body 7 is provided with airflow hole 8, fixed
The one end of valve body 7 is connected to inlet piston 4, and the other end of fixed valve body 7 is connected to exhaust pition 10, and fixed valve body 7 is lived with air inlet
Vulcanized rubber mat 6 is provided between plug 4, vulcanized rubber mat 6 is used to allow better tightness between fixed valve body 7 and inlet piston 4.Return
Gas port 13 is connected with upper air cavity 23, and working hole 9 is connected with middle gas chamber, is provided with what is connected with upper air cavity 23 in first die cavity
First passage 29 and the second channel 30 connected with middle gas chamber.
When rotary switch is closed, valve rod 17 is moved down, and air inlet 26 is opened, and gas is through air inlet 26, the first die cavity, second
Passage 30 enters fixed valve body 7, and air pressure rises in fixed valve body 7, promotes and moved on exhaust pition 10, closely matches somebody with somebody with exhaust liner 14
Close, closed between gas returning port 13 and exhaust outlet 21, meanwhile, gas enters working hole 9 through airflow hole 8 in fixed valve body 7, and car door delays
Slow to close, when air pressure reaches 8kg in fixed valve body 7, inlet piston 4 is moved down, and working hole 9 is directly connected with fixed valve body 7, gas
Body directly enters working hole 9 from fixed valve body 7, and car door is closed rapidly.
When bus in case of emergency, occupant open rotary switch, effect of the valve rod 17 in the first spring 28
Lower rapid upper shifting, is closed between air inlet 26 and working hole 9, and gas is not entered back into, and air pressure reduces in fixed valve body 7, and air inlet is lived
Plug 4 resets in the presence of the 3rd spring 3, and exhaust pition 10 resets in the presence of second spring 12, gas returning port 13 be vented
Mouth 2 is connected, and gas cooled via return air mouthful 13 enters upper air cavity 23 in valve body 1, and then gas is quick through first passage 29 from upper air cavity 23
Discharged from exhaust outlet 21, car door opening.
Further, inlet piston 4 is arranged with y-shaped ring 5 with exhaust pition 10, makes piston seal performance more preferably, Gu
Determine valve body 7, exhaust liner 14, stationary bushing 15 and be arranged with O-ring, for improving the sealing effectiveness with the second die cavity.Valve body 1
The adjusting screw 24 connected with the first die cavity is provided with, adjusting screw 24 is arranged with O-ring, shield 35 and is provided with supporting plate, leads to
Cross pan head screw 34 and be fixedly connected on valve body 1, when rotary switch is closed, supporting plate is used to support rotary-type component 16.
The above is only better embodiment of the present utility model, therefore all according to described in the utility model patent claim
Construction, the equivalent change or modification done of feature and principle, be included in the utility model patent claim.
Claims (10)
1. a kind of rotary safe valve for bus, including valve body (1), bonnet (32) and rotary switch；
The bonnet (32) is positioned at valve body (1) top；
The rotary switch is located on bonnet (32), and rotary switch includes rotary-type component (16) and supports rotary-type component (16)
Shield (35), the rotary switch and bonnet (32) are fixedly connected on the valve body (1) by soket head cap screw (33)；
The first die cavity and the second die cavity are provided with the valve body (1), valve body (1) is provided with gas returning port (13) and working hole (9)；Institute
State and valve rod (17) is provided with the first die cavity, valve rod (17) in two ends are thick, middle fine texture, support and opened located at rotation by valve rod (17) one end
Close, valve rod (17) other end is provided with the first spring (28), the first spring (28) one end is supported and is located at valve rod (17), the first spring (28)
The other end support and be located at the first cavity bottom, the valve rod (17) is arranged with spacer component, and valve body (1) is provided with and the first die cavity
The air inlet (26) and exhaust outlet (21) of connection；
Upper chamber, middle gas chamber and lower chamber are provided with second die cavity, stationary bushing (15) is provided with the upper chamber, Gu
Determine bushing (15) one end and be fixedly connected on the second die cavity, the other end of stationary bushing (15) is provided with exhaust liner (14), fixed lining
Upper air cavity (23) is formed between set (15) and exhaust liner (14), second spring (12), second are arranged with exhaust liner (14)
Spring (12) one end is provided with exhaust pition (10), and second spring (12) one end is supported and is located at exhaust liner (14), second spring (12)
The other end support and be located at exhaust pition (10), be provided with inlet piston (4) in the lower chamber, is provided with the 3rd in inlet piston (4)
Spring (3), the 3rd spring (3) is fixedly connected on lower chamber by spring base (2), and one end of the 3rd spring (3) is supported and is located at air inlet
Piston (4), the other end of the 3rd spring (3) is supported and is located at spring base (2), and the middle gas chamber is provided with fixed valve body (7), its feature
It is：The fixed valve body (7) is provided with airflow hole (8), and fixed valve body (7) one end is connected to inlet piston (4), standing valve
The other end of body (7) is connected to exhaust pition (10), and gas returning port (13) is connected with upper air cavity (23), working hole (9) and middle gas
Room connects；The first passage (29) connected with upper air cavity (23) and connected with middle gas chamber second is provided with first die cavity
Passage (30)；
When rotary switch is closed, valve rod (17) is moved down, and air inlet (26) is through the first die cavity, second channel (30), middle gas chamber
Connected with working hole (9), moved on exhaust pition (10) and exhaust liner (14) tight fit, gas returning port (13) and exhaust outlet (21)
Between close；When rotary switch is opened, moved on valve rod (17), closed between air inlet (26) and working hole (9), exhaust pition
Resetted in the presence of second spring (12), gas returning port (13) is through upper air cavity (23), first passage (29), the first die cavity and exhaust
Mouth (21) connection.
2. a kind of rotary safe valve for bus according to claim 1, it is characterised in that：The spacer component
Including bushing (19), upper spacer (31), middle spacer sleeve (25), lower spacer (27), the 4th spring (18) is provided with bushing (19), the
Four springs (18) one end is supported and is located at the first die cavity upper end, and the other end of the 4th spring (18) is supported and is located at bushing (19).
3. a kind of rotary safe valve for bus according to claim 2, it is characterised in that：Bushing (19) with it is upper
Pad (20) is provided between spacer (31), pad (20) is provided between middle spacer sleeve (25) and lower spacer (27).
4. a kind of rotary safe valve for bus according to claim 3, it is characterised in that：Bushing (19) with it is upper
E shape circles are equipped between spacer (31), upper spacer (31) and middle spacer sleeve (25), middle spacer sleeve (25) and lower spacer (27)
(22)。
5. a kind of rotary safe valve for bus according to claim 1, it is characterised in that：Second spring (12)
Sealing gasket (11) is provided between exhaust pition (10).
6. a kind of rotary safe valve for bus according to claim 1, it is characterised in that：Fixed valve body (7)
Vulcanized rubber mat (6) is provided between inlet piston (4).
7. a kind of rotary safe valve for bus according to claim 1, it is characterised in that：Inlet piston (4)
Y-shaped ring (5) is arranged with exhaust pition (10).
8. a kind of rotary safe valve for bus according to claim 1, it is characterised in that：Valve body sets on (1)
There is the adjusting screw (24) connected with the first die cavity, adjusting screw (24) is arranged with O-ring.
9. a kind of rotary safe valve for bus according to claim 1, it is characterised in that：Fixed valve body (7),
Exhaust liner (14), stationary bushing (15) are arranged with O-ring.
10. a kind of rotary safe valve for bus according to claim 1, it is characterised in that：In shield (35)
Supporting plate is provided with, is fixedly connected on valve body (1) by pan head screw (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621144158.7U CN206234416U (en) | 2016-10-21 | 2016-10-21 | A kind of rotary safe valve for bus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621144158.7U CN206234416U (en) | 2016-10-21 | 2016-10-21 | A kind of rotary safe valve for bus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206234416U true CN206234416U (en) | 2017-06-09 |
Family
ID=58982735
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621144158.7U Active CN206234416U (en) | 2016-10-21 | 2016-10-21 | A kind of rotary safe valve for bus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206234416U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113431938A (en) * | 2020-09-08 | 2021-09-24 | 河北光华荣昌汽车部件有限公司 | Seat height control valve and car seat |
-
2016
- 2016-10-21 CN CN201621144158.7U patent/CN206234416U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113431938A (en) * | 2020-09-08 | 2021-09-24 | 河北光华荣昌汽车部件有限公司 | Seat height control valve and car seat |
| CN113431938B (en) * | 2020-09-08 | 2022-09-13 | 河北光华荣昌汽车部件有限公司 | Seat height control valve and car seat |
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| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 315500 10 integrity Road, Xikou Industrial Park, Fenghua, Ningbo, Zhejiang Patentee after: Ningbo Yongyi pneumatic Tech Co. Ltd. Address before: 315500 10 integrity Road, Xikou Industrial Park, Fenghua, Ningbo, Zhejiang Patentee before: Fenghua Yongyi Pneumatic Hydraulic Co., Ltd. |