CN207945316U - Pressure-sensitive Steering valve - Google Patents
Pressure-sensitive Steering valve Download PDFInfo
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- CN207945316U CN207945316U CN201820124629.0U CN201820124629U CN207945316U CN 207945316 U CN207945316 U CN 207945316U CN 201820124629 U CN201820124629 U CN 201820124629U CN 207945316 U CN207945316 U CN 207945316U
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- steering valve
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Abstract
The utility model discloses a kind of pressure-sensitive Steering valve, it is related to valve field, including cylinder, it is provided with piston in the cylinder, the cylinder both ends are both provided with air inlet pipe, the cylinder centre position is provided with exhaust pipe, the piston both ends are provided with groove, the groove upper wall is provided with the limiting device for limiting piston shift position, the opening for being connected to exhaust pipe is provided in the recess sidewall, during moving left and right, two openings are alternately connected to exhaust pipe piston, simple in structure, susceptibility is high, maintains easily and the operation is stable.
Description
Technical field
The utility model is related to valve fields, more particularly, to realize the Steering valve that two-way air source alternately supplies.
Background technology
Central oxygen supply system is made of Central oxygen-supply source, pipeline, valve and oxygen quick socket terminal etc..Central oxygen-supply source
It is the core of medical center oxygen system, the oxygen in oxygen source is transported to each ward in each lesion by pipeline and decompressor
Quick socket terminal at, then by humidification machine for patients accepting oxygen inhalation, it is safe to use, quick and easy, is a kind of fast into several years
Hail the modernization Medical Devices of exhibition.
Central oxygen supply system is by gas cylinders group, bus-bar, auto-changeover control platform（It also can be manual）, the groups such as warning device
At.When using gas cylinders group as oxygen supply air source, gas cylinder is divided into two groups, and one group of work, one group spare；When oxygen pressure in one group of bottle
When power drops to a certain specified value, auto-changeover control platform is automatically switched, the i.e. continuous oxygen supply of bailout bottle group；Meanwhile it alarming
Device sends out sound, visual alarm automatically, and warning staff replaces gas cylinder.When output pressure is less than specified value, alarm dress
It sets and also sends out sound and light alarm signal, warning takes measures；, can be based on liquid oxygen when liquid oxygen and oxygen cylinder are used in conjunction with, gas cylinder
Supplemented by or make spare.When being mounted with oxygenerator, to make by oneself based on oxygen source, gas cylinder is spare, oxygen channel and stabilising arrangement oxygen
After the decompression of Central oxygen-supply station level-one, the oxygen that pressure is kept to 0.4-0.5Mpa (adjustable) by conveyance conduit is transported to each floor
It is interior, patient's breathing can be met and start various lung ventilator, Anesthesia machine both at home and abroad, can also be supplied oxygen to hyperbaric oxygen chamber.
Since medical oxygen system oxygen consuming amount is big, and oxygen pneumatic is required high, it is therefore desirable to oxygen supply gas cylinder is often replaced,
Existing mode is the air pressure detected by pressure transducer in gas cylinder, and then controlling solenoid valve by control centre is converted
Gas circuit, this kind of mode can be rapidly performed by gas circuit switching, but high to control system dependence, it has not been convenient to safeguard.
Utility model content
The purpose of the utility model is to overcome deficiency in the prior art, provide it is a kind of it is simple in structure, susceptibility is high, side
Just the pressure-sensitive Steering valve of maintenance and the operation is stable.
The utility model is achieved through the following technical solutions：A kind of pressure-sensitive Steering valve, including cylinder, the cylinder
It is inside provided with piston, the cylinder both ends are both provided with air inlet pipe, and the cylinder centre position is provided with exhaust pipe, the piston
Both ends are provided with groove, and the groove upper wall is provided with the limiting device for limiting piston shift position, in the recess sidewall
It is provided with the opening for being connected to exhaust pipe, during moving left and right, two openings are alternately connected to exhaust pipe piston.
Further, the limiting device includes the through-hole for being set to groove upper wall, and the through-hole lower end is provided with limit
Baffle ring, the through-hole interior sealing are provided with fore-set, and the fore-set upper end is provided with spacer pin, the cylinder inboard wall and spacer pin phase
Corresponding position is additionally provided with the slideway for limiting spacer pin shift position, and the slideway centre position is provided with groove.
Further, the spacer pin upper surface is inclined-plane, and the inclined-plane of two spacer pins is oppositely arranged.
Further, the through-hole upper end is provided with gland, and the spacer pin cross section is rectangle, the spacer pin upper end
Across gland.
Further, it is additionally provided with compression spring between the gland and fore-set.
Further, the groove upper end is provided with the stomata for extending to cylinder body outer wall.
Further, limit groove is provided on the cylinder lower end inner wall, the piston is corresponding with limit groove
Limit protrusion is provided at position.
Further, the limit channel bottom centre position is additionally provided with microswitch, and described limit protrusion or so moves
Microswitch can be triggered in dynamic process, the microswitch is connected with acoustic-optic alarm.
The beneficial effects of the utility model are：The air inlet pipe being connected to exhaust pipe is controlled by piston, limiting device, no
It needs by electric control valve, stability is high, maintains easily；Limiting device includes fore-set, spacer pin, limit baffle ring, gland, compression
Spring, slideway, groove can act under the influence of air pressure, and be limited to the movement of piston, ensure that valve normally moves
Make, while control accuracy is high；Setting limit groove and limit protrusion, can avoid piston rotation；Microswitch is set, in valve
Sending and receiving it can go out to warn outward during being converted.
Description of the drawings
Fig. 1 is pressure-sensitive Steering valve main view diagrammatic cross-section；
Fig. 2 is that A directional profiles diagram is intended to；
Fig. 3 is partial enlarged view schematic diagram at B；
Wherein：1- cylinders, 2- pistons, 3- air inlet pipe, 4- exhaust pipes, 5- openings, 6- through-holes, 7- limit baffle rings, 8- fore-sets,
9- spacer pins, 10- slideways, 11- grooves, 12- stomatas, 13- limit grooves, 14- limit protrusions, 15- microswitches, 16- conducting wires,
17- glands, 18- compression springs, 19- sealing rings.
Specific implementation mode
The technical solution of the utility model is illustrated below in conjunction with specific embodiment.
Embodiment 1
As shown in Figs. 1-3, a kind of pressure-sensitive Steering valve, including cylinder 1, cylinder 1 are the two valves compositions being made of stainless steel
, the docking plane of two valves passes through the axis of cylinder 1, and the sealing of 1 both ends of cylinder is fixed with end cap, and two end cap has been respectively communicated with one
Air inlet pipe 3,1 interior sealing of cylinder are equipped with piston 2, and piston 2 is cylinder, and 1 centre position of cylinder is communicated with exhaust pipe 4, piston 2
Both ends are provided with groove, and groove is cylinder, and groove upper wall is equipped with the limiting device for limiting piston shift position, limit dress
The through-hole 6 including being opened in groove upper wall is set, through-hole 6 is circular hole, and 6 lower end of through-hole has been integrally machined limit baffle ring 7 with piston 2,
6 interior sealing of through-hole is equipped with fore-set 8, and fore-set 8 is cylinder, is equipped with sealing ring 19 on 8 side wall of fore-set, 8 upper end of fore-set is fixed with
Upward spacer pin 9,9 cross section of spacer pin are rectangle, and 9 upper surface of spacer pin is inclined-plane, and the inclined-plane of two spacer pins 9 is set in opposite directions
It sets, the slideway 10 for limiting spacer pin shift position, slideway 10 is also provided at 1 inner wall of cylinder and 9 opposite position of spacer pin
Centre position is provided with groove 11, and the section of slideway 10 and groove 11 is rectangle, and 6 threaded upper ends of through-hole have tightened gland 17, limit
Position pin 9 upper end passes through gland 17, and compression spring 18 is also equipped between gland 17 and fore-set 8, be provided in recess sidewall for
The opening 5 that exhaust pipe 4 is connected to, during moving left and right, two openings 5 are alternately connected to exhaust pipe 4 piston 2.
11 upper end of groove is provided with the stomata 12 for extending to 1 outer wall of cylinder.
Limit groove 13 is provided on 1 lower end inner wall of cylinder, 2 lower end of piston and one at limit 13 opposite position of groove are solid
There are limit protrusion 14,13 bottom centre position of limit groove to be also equipped with microswitch 15 surely, what limit protrusion 14 moved left and right
Microswitch 15 can be triggered in the process, and microswitch 15 is connected with acoustic-optic alarm by conducting wire 16.
The operation principle of the present embodiment is as follows：Under original state, two air inlet pipe are connected to gas cylinder, first open left side gas
The safety valve of bottle, air pressure push piston to move right, while the fore-set in left side pushes corresponding spacer pin and moves up, piston to
Move right tight to the spacer pin on right side and slideway right end wall pressure, left side air inlet pipe is open by left side and is connected with exhaust pipe at this time,
Spacer pin is located in groove, opens the safety valve of right side gas cylinder, air pressure push piston to the left, while pushing up the fore-set on right side,
Since the spacer pin and groove left end wall in left side are stuck, piston is immovable, when the air pressure in left side reduces, the compression bullet in left side
Spring pushes corresponding fore-set to move down, and spacer pin and the groove left end wall in left side are detached from, and piston is moved to the left, until the limit in left side
Position pin is squeezed with slideway left end wall, and right side air inlet pipe is connected by right openings with exhaust pipe at this time, is moved from right to left in piston
In dynamic process, limit protrusion triggers a microswitch, and then sends out alert news by acoustic-optic alarm, reminds maintenance personnel
Replace left side gas cylinder.
Claims (8)
1. a kind of pressure-sensitive Steering valve, it is characterised in that：Including cylinder, piston, the cylinder both ends are provided in the cylinder
It is both provided with air inlet pipe, the cylinder centre position is provided with exhaust pipe, and the piston both ends are provided with groove, the groove upper wall
It is provided with the limiting device for limiting piston shift position, is provided in the recess sidewall and is opened for what is be connected to exhaust pipe
Mouthful, during moving left and right, two openings are alternately connected to exhaust pipe piston.
2. pressure-sensitive Steering valve according to claim 1, it is characterised in that：The limiting device includes being set on groove
The through-hole of wall, the through-hole lower end are provided with limit baffle ring, and the through-hole interior sealing is provided with fore-set, the fore-set upper end setting
There is spacer pin, the cunning for limiting spacer pin shift position is additionally provided at the cylinder inboard wall and spacer pin opposite position
Road, the slideway centre position are provided with groove.
3. pressure-sensitive Steering valve according to claim 2, it is characterised in that：The spacer pin upper surface is inclined-plane, two limits
The inclined-plane of position pin is oppositely arranged.
4. pressure-sensitive Steering valve according to claim 2, it is characterised in that：The through-hole upper end is provided with gland, described
Spacer pin cross section is rectangle, and the spacer pin upper end passes through gland.
5. pressure-sensitive Steering valve according to claim 4, it is characterised in that：Be additionally provided between the gland and fore-set by
Pressing spring.
6. pressure-sensitive Steering valve according to claim 2, it is characterised in that：The groove upper end, which is provided with, to be extended to outside cylinder
The stomata of wall.
7. pressure-sensitive Steering valve according to claim 1, it is characterised in that：It is provided with position-limited groove on the cylinder lower end inner wall
It is provided with limit protrusion at slot, the piston and limit groove opposite position.
8. pressure-sensitive Steering valve according to claim 7, it is characterised in that：The limit channel bottom centre position is also set
It is equipped with microswitch, the limit protrusion can trigger microswitch during moving left and right, the microswitch is connected with
Acoustic-optic alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820124629.0U CN207945316U (en) | 2018-01-25 | 2018-01-25 | Pressure-sensitive Steering valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820124629.0U CN207945316U (en) | 2018-01-25 | 2018-01-25 | Pressure-sensitive Steering valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207945316U true CN207945316U (en) | 2018-10-09 |
Family
ID=63702478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820124629.0U Active CN207945316U (en) | 2018-01-25 | 2018-01-25 | Pressure-sensitive Steering valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207945316U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469691A (en) * | 2019-08-09 | 2019-11-19 | 深圳捷工智能电气股份有限公司 | Medical apparatus of oxygen supply |
| CN110701360A (en) * | 2019-09-13 | 2020-01-17 | 上海空间推进研究所 | Reversing three-way valve with quick connection function |
-
2018
- 2018-01-25 CN CN201820124629.0U patent/CN207945316U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110469691A (en) * | 2019-08-09 | 2019-11-19 | 深圳捷工智能电气股份有限公司 | Medical apparatus of oxygen supply |
| CN110701360A (en) * | 2019-09-13 | 2020-01-17 | 上海空间推进研究所 | Reversing three-way valve with quick connection function |
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