CN208587537U - A kind of sanitary pneumatic reversal valve - Google Patents
A kind of sanitary pneumatic reversal valve Download PDFInfo
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- CN208587537U CN208587537U CN201821347890.3U CN201821347890U CN208587537U CN 208587537 U CN208587537 U CN 208587537U CN 201821347890 U CN201821347890 U CN 201821347890U CN 208587537 U CN208587537 U CN 208587537U
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Abstract
The utility model relates to a kind of sanitary pneumatic reversal valves, it include cylinder, bracket, upper valve body, lower valve body and be located at the intracorporal core assembly of lower valve, intert on bracket and is provided with the valve rod slided up and down, uuper valve chamber and lower valve chamber are respectively arranged in the upper valve body and lower valve body, the interface B and interface C being connected with lower valve chamber are provided in lower valve body, and plane where the inner wall of interface B and the bottom of lower valve chamber is tangent, the gland that frame upper is provided with packing groove and is sheathed on valve rod, airtight and watertight padding compatible with valve rod is filled in packing groove, matched filler briquetting is provided on the upside of airtight and watertight padding, the lower end of gland is fixedly connected with gland protrusion compatible with packing groove, compressed spring is provided between gland protrusion and filler briquetting, the junction of upper valve body and lower valve body is additionally provided with T-type sealing Circle.The sanitary pneumatic structure of reversing valve advantages of simple, can prevent the generation of hydrops, good seal performance, long service life, fast assembling-disassembling.
Description
Technical field
The utility model relates to valve technology fields, and in particular to a kind of sanitary pneumatic reversal valve.
Background technique
Reversal valve is the directional control valve with two or more liquid forms and more than two hydraulic fluid ports.It is to realize hydraulic oil stream
Communication, cutting and commutation and discharge degree and sequentially-operating control valve.Hand-operated direction valve, pneumatic commutation can be divided into
Valve, solenoid directional control valve, electro-hydraulic reversing valve etc..Sanitation-grade reversal valve is one kind of reversal valve, is produced in food-processing industry, beverage
It suffers from and is widely applied in pharmacy and fine chemistry industry industry.
202392159 U of Chinese patent literature CN discloses a kind of reversal valve, belongs to a kind of sanitation-grade fluid production line and changes
To pneumatic control valve, which is made of positioning device A, air control unit B and fluid reversing device C, and A includes close
Switch block, close switch guard housing and magnet inductive component;B includes pneumatic linear actuator cylinder body, pneumatic control component, C include valve seat,
Upper valve body, lower valve body, hoop component and double seal valve core assembly are equipped with close on the lateral wall of switch guard housing close to switching group
Part is equipped with magnet inductive component close to the inner cavity of switch guard housing, is equipped with pneumatic control component in the inner cavity of pneumatic linear actuator cylinder body, under
Double seal valve core assembly is equipped in the inner cavity of valve body, magnet inductive component is connect with pneumatic control component, pneumatic control component
It is connect by valve rod with double seal valve core assembly;The utility model it is reasonable in design, by the technical solution, may be implemented
One, easy to operate, low manufacture cost multidirectional to changing of production line fluid flow direction, can also be used cooperatively with intelligent control device,
Reach Automatic Control.
But plane where the valve chamber bottom of lower valve body is lower than the position of inlet O in this application, while double containment spool
Component will form groove when being pressed on valve chamber bottom, and then form hydrops during the work time and can not be smoothly discharged, to commutation
Valve damages and entire pipe-line system impacts.The junction of bracket and valve rod and upper valve body and lower valve body simultaneously
Junction has that leakproofness is insufficient, therefore improves and be very important to existing reversal valve.
Utility model content
For the deficiency of background technique, the utility model provides a kind of sanitary pneumatic reversal valve, can effectively solve existing
There is the problem of technology.
The technical scheme adopted by the utility model is a kind of sanitary pneumatic reversal valve, include cylinder, bracket, on
Valve body, lower valve body and be located at the intracorporal core assembly of lower valve, intert on bracket and be provided with the valve rod slided up and down, valve rod it is upper
Lower both ends are connected with each other with the piston rod of cylinder and core assembly respectively, are respectively arranged in the upper valve body and lower valve body
Valve chamber and lower valve chamber are provided with the interface A being connected with uuper valve chamber on upper valve body, are provided in lower valve body and are connected with lower valve chamber
Interface B and interface C, the cylindrical structure setting of interface B, and the bottom of the inner wall of interface B and lower valve chamber where plane it is tangent,
Upper valve body is mutually permanently connected with bracket and lower valve body respectively by the way that yoke configurations are arranged, and upper valve body is folded with bracket junction
Sealing plate compatible with valve rod, and reinforcement steel disc is embedded in sealing plate, frame upper is provided with packing groove and is sheathed on valve
Gland on bar, packing groove is interior to be filled with airtight and watertight padding compatible with valve rod, is provided with and its phase on the upside of airtight and watertight padding
The filler briquetting of adaptation, the lower end of gland are fixedly connected with compatible with packing groove gland protrusion, gland protrusion with fill out
Expect to be provided with compressed spring between briquetting, the junction of upper valve body and lower valve body is additionally provided with T-type sealing ring.
Further, the cylinder includes that lower part socket is connected to the cylinder body of the frame upper, cylinder body and bracket
Socket place is provided with the lock chambers of annular, matched locking silk is equipped in lock chambers, and lock and also set up on the upside of silk
There is cylinder body sealing ring, at least one locking installing port being connected with lock chambers is additionally provided on cylinder body.
Further, one end of the piston rod is connected with each other by setting positioning wedged block and the valve rod upper end, positioning
It is also arranged with matched positioning sleeve on the upside of fixture block, piston rod both ends are provided with valve rod link slot and connect with valve rod
The locating groove I that slot is connected, valve rod upper end are provided with locating groove II corresponding with locating groove I.
Further, the core assembly include flap and above and below flap two sides valve clack sealing ring, flap is close
Compression inclined-plane is provided in seal, flap is respectively arranged with the top board and lower platen to offset with valve clack sealing ring in two sides up and down,
Top board and lower platen are round-like structure setting, and top board and the valve rod are an integral structure setting.
Further, it is provided with flap through-hole compatible with the valve rod at the flap center, stem lower portion passes through
Flap through-hole is simultaneously mutually permanently connected by setting follower bolt with the lower platen, is arranged on follower bolt and lower platen phase
The pressing plate for sealing circle of cooperation, flap are provided with seal groove compatible with the valve clack sealing ring in two sides up and down.
Further, the gland and gland protrusion are an integral structure setting, gland protrusion and the filler
Compatible external screw thread and internal screw thread are respectively arranged on slot, lace shape or regular polygon structure setting is arranged in gland.
Further, the sealing plate, airtight and watertight padding, T-type sealing ring, valve clack sealing ring and pressing plate for sealing circle are all made of fluorine
Rubber is made.
The beneficial effects of the utility model are: due to taking above-mentioned technical proposal, the sanitary pneumatic structure of reversing valve letter
It is single rationally, by the cylindrical structure setting of interface B, and the side that plane where the bottom of the inner wall of interface B and lower valve chamber is tangent
Formula avoids the generation of groove so that core assembly not will form groove when being pressed on lower valve chamber bottom, and then avoids producing at groove
Raw hydrops is damaged to reversal valve and the influence of pipe-line system, while passing through setting gland, filler briquetting and compression bullet
Spring and airtight and watertight padding cooperate, and generate after enabling airtight and watertight padding to fill guarantee bracket and valve rod junction long term wear automatically
Gap, guarantee bracket and valve rod junction sealing performance, and upper valve body and lower valve body junction be arranged T-type sealing ring into
The sealing performance of one step junction substantially increases the overall performance of sanitary pneumatic reversal valve, simple and reasonable, can prevent
The generation of hydrops, good seal performance, long service life, fast assembling-disassembling.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the partial enlargement diagram in Fig. 1 at D.
Fig. 3 is the partial enlargement diagram in Fig. 1 at E.
1, cylinder in figure；2, bracket；3, upper valve body；4, lower valve body；5, valve rod；6, piston rod；7, uuper valve chamber；8, lower valve
Chamber；9, interface A；10, interface B；11, interface C；12, yoke configurations；13, sealing plate；14, reinforce steel disc；15, gland；
16, airtight and watertight padding；17, filler briquetting；18, gland protrusion；19, compressed spring；20, T-type sealing ring；21, cylinder body；22, it locks
Silk；23, cylinder body sealing ring；24, installing port is locked；25, positioning wedged block；26, positioning sleeve；27, valve rod link slot；28, it positions
Card slot I；29, locating groove II；30, flap；31, valve clack sealing ring；32, top board；33, lower platen；34, follower bolt；35,
Pressing plate for sealing circle.
Specific embodiment
The utility model embodiment is described further with reference to the accompanying drawing:
As shown in Fig. 1 to Fig. 3, a kind of sanitary pneumatic reversal valve includes cylinder 1, bracket 2, upper valve body 3, lower valve body 4
And the core assembly in lower valve body 4, intert on bracket 2 and is provided with the valve rod 5 slided up and down, the upper and lower ends of valve rod 5
It is connected with each other respectively with the piston rod 6 and core assembly of cylinder 1, is respectively arranged with upper valve in the upper valve body 3 and lower valve body 4
Chamber 7 and lower valve chamber 8 are provided with the interface A 9 being connected with uuper valve chamber 7 on upper valve body 3, are provided in lower valve body 4 and lower valve chamber 8
The cylindrical structure setting of the interface B 10 and interface C 11 being connected, interface B 10, and the inner wall of interface B 10 and lower valve chamber 8
Bottom where plane it is tangent, avoid the generation of groove, so avoid at groove generate hydrops sanitary pneumatic reversal valve is made
At the influence of damage and pipe-line system, upper valve body 3 is fixed to each other with bracket 2 and lower valve body 4 respectively by the way that yoke configurations 12 are arranged
Connection, yoke configurations 12 are attached quickly to be dismounted convenient for sanitary pneumatic reversal valve, upper valve body 3 and 2 junction of bracket
It is folded with sealing plate 13 compatible with valve rod 5, and is embedded in sealing plate 13 and reinforces steel disc 14, reinforces steel disc 14 and improves sealing
The mechanical strength of plate 13, the gland 15 that 2 top of bracket is provided with packing groove and is sheathed on valve rod 5, the interior filling of packing groove
There is airtight and watertight padding 16 compatible with valve rod 5, matched filler briquetting 17, filler pressure are provided on the upside of airtight and watertight padding 16
The lower end of lid 15 is fixedly connected with gland protrusion 18 compatible with packing groove, is arranged between gland protrusion 18 and filler briquetting 17
There is compressed spring 19, compressed spring 19 exerts a force under the action of gland protrusion 18 to filler briquetting 17, so that under filler briquetting 17
The airtight and watertight padding 16 of side squeeze and prevents from occurring wearing and reducing sealing performance at valve rod 5, the company of upper valve body 3 and lower valve body 4
The place of connecing is additionally provided with T-type sealing ring 20, and T-type sealing ring 20 improves the leakproofness of upper valve body 3 and 4 junction of lower valve body.
The cylinder 1 includes the cylinder body 21 that lower part socket is connected to 2 top of bracket, the set of cylinder body 21 and bracket 2
The place of connecing is provided with the lock chambers of annular, and matched locking silk 22 is equipped in lock chambers, and locking silk 22 is fitted tightly over
Be connected with each other cylinder body 21 and bracket 2 in lock chambers, at the same when normal operating conditions due to locking silk 22 and locking cavity wall it
Between friction will not rotate greatly very much, and lock silk 22 on the upside of be additionally provided with cylinder body sealing ring 23, be additionally provided on cylinder body 21
At least one locking installing port 24 being connected with lock chambers, locking installing port 24 are easily installed and remove locking silk 22.
One end of the piston rod 6 is connected with each other by setting positioning wedged block 25 and 5 upper end of valve rod, positioning wedged block 25
Upside is also arranged with matched positioning sleeve 26, and positioning wedged block 25 and positioning sleeve 26 can quickly connect 6 He of piston rod
Valve rod 5 improves the dismounting speed of sanitary pneumatic reversal valve, and 6 both ends of piston rod are provided with valve rod link slot 27 and and valve rod
The locating groove I 28 that link slot 27 is connected, so that piston rod 6 also can reversely be installed with formal dress, if when formal dress, cylinder 1 is non-
Action state lower Disc is pressed on 8 bottom of lower valve chamber, if anti-dress, 1 non-action status lower Disc of cylinder are pressed at the top of valve chamber, just
It is used in user, 5 upper end of valve rod is provided with locating groove II 29 corresponding with locating groove I 28.
The core assembly includes flap 30 and the valve clack sealing ring 31 positioned at about 30 two sides of flap, valve clack sealing ring
Compression inclined-plane is provided on 31, about 30 two sides of flap are respectively arranged with the top board 32 to offset with valve clack sealing ring 31 and push
Plate 33, top board 32 and lower platen 33 are round-like structure setting, top board 32 and lower platen 33 to valve clack sealing ring 31 into
Row compresses so that valve clack sealing ring 31 generates slight deformation and preferably fits in 30 surface of flap, and top board 32 and the valve rod
5 are an integral structure setting.
Flap through-hole compatible with the valve rod 5 is provided at 30 center of flap, 5 lower part of valve rod is logical across flap
Hole is simultaneously mutually permanently connected by the way that follower bolt 34 is arranged with the lower platen 33, is arranged on follower bolt 34 and lower platen 33
The pressing plate for sealing circle 35 matched, pressing plate for sealing circle 35 prevent the screw thread of follower bolt 34 to be in contact with the medium flowed through, mention
The service life of high pressure crab bolt 34, and then convenient for dismounting between valve rod 5 and flap 30, about 30 two sides of flap be provided with and
The compatible seal groove of the valve clack sealing ring 31, seal groove are fixed convenient for the installation of valve clack sealing ring 31.
The gland 15 and gland protrusion 18 are an integral structure setting, and integral type setting can improve gland protrusion 18
Mechanical strength, gland protrusion 18 and the packing groove on be respectively arranged with compatible external screw thread and internal screw thread, pass through spiral shell
Line mode is mutually permanently connected, and connection procedure is more easy, and regular polygon structure setting is arranged in gland 15, is convenient for spanner pair
Gland 15 is screwed.
The sealing plate 13, airtight and watertight padding 16, T-type sealing ring 20, valve clack sealing ring 31 and pressing plate for sealing circle 35 are all made of
Fluorubber is made, and fluorubber has good corrosion resistance, improves the corrosion resistance of sanitary pneumatic reversal valve.
Its course of work is as described below:
When interface B 10 is as import, then interface A 9 and interface C 11 is outlet, and medium flows into lower valve by interface B 10
In chamber 8, core assembly moves to the upside or downside of lower valve chamber 8 under the drive of valve rod 5, if core assembly moves to upside i.e.
Medium is flowed out from the interface C 11 of downside, otherwise medium is flowed out from interface A 9；
When interface B 10 is as outlet, then interface A 9 and interface C 11 is import, and core assembly is under the drive of valve rod 5
The upside or downside of lower valve chamber 8 are moved to, if core assembly moves to upside i.e. medium under flowing into the interface C 11 of downside
Valve chamber 8 is simultaneously flowed out from interface B 10, on the contrary medium from interface A 9 flow into interface B 10 in flow out.
The beneficial effects of the utility model are: due to taking above-mentioned technical proposal, the sanitary pneumatic structure of reversing valve letter
It is single rationally, by the cylindrical structure setting of interface B 10, and the bottom of the inner wall of interface B 10 and lower valve chamber 8 place plane phase
The mode cut avoids the generation of groove so that core assembly not will form groove when being pressed on 8 bottom of lower valve chamber, and then avoids
Hydrops is generated at groove to damage reversal valve and the influence of pipe-line system, while passing through setting gland 15, filler pressure
Block 17 and compressed spring 19 and airtight and watertight padding 16 cooperate, and airtight and watertight padding 16 is filled automatically and guarantees bracket 2 and valve rod 5
The gap generated after the long term wear of junction guarantees bracket 2 and 5 junction sealing performance of valve rod, and in upper valve body 3 and lower valve
The sealing performance of the further junction of T-type sealing ring 20 is arranged in 4 junction of body, substantially increases the whole of sanitary pneumatic reversal valve
Body performance, it is simple and reasonable, the generation of hydrops, good seal performance, long service life, fast assembling-disassembling can be prevented.
Every technical staff's notice: although the utility model is described according to above-mentioned specific embodiment, this
The invention thought of utility model is not limited to that utility model, and any repacking with inventive concept will all be included in this specially
In sharp scope of patent protection.
Claims (7)
1. a kind of sanitary pneumatic reversal valve includes cylinder, bracket, upper valve body, lower valve body and is located at the intracorporal valve of lower valve
Core assembly interts on bracket and is provided with the valve rod slided up and down, the upper and lower ends of valve rod respectively with the piston rod of cylinder and valve
Core assembly is connected with each other, it is characterised in that: uuper valve chamber and lower valve chamber, upper valve body are respectively arranged in the upper valve body and lower valve body
On be provided with the interface A being connected with uuper valve chamber, the interface B and interface C being connected with lower valve chamber, interface are provided in lower valve body
The cylindrical structure setting of B, and plane where the bottom of the inner wall of interface B and lower valve chamber is tangent, upper valve body passes through setting clip
Structure is mutually permanently connected with bracket and lower valve body respectively, and upper valve body is folded with sealing compatible with valve rod with bracket junction
Plate, and reinforcement steel disc is embedded in sealing plate, the gland that frame upper is provided with packing groove and is sheathed on valve rod, filler
It is filled with airtight and watertight padding compatible with valve rod in slot, is provided with matched filler briquetting, filler on the upside of airtight and watertight padding
The lower end of gland is fixedly connected with gland protrusion compatible with packing groove, is provided with compression between gland protrusion and filler briquetting
The junction of spring, upper valve body and lower valve body is additionally provided with T-type sealing ring.
2. a kind of sanitary pneumatic reversal valve according to claim 1, it is characterised in that: the cylinder includes lower part set
It is connected to the cylinder body of the frame upper in succession, the socket place of cylinder body and bracket is provided with the lock chambers of annular, wears in lock chambers
Have a matched locking silk, and lock and be additionally provided with cylinder body sealing ring on the upside of silk, be additionally provided on cylinder body at least one with
The locking installing port that lock chambers are connected.
3. a kind of sanitary pneumatic reversal valve according to claim 1, it is characterised in that: one end of the piston rod passes through
Positioning wedged block is set and the valve rod upper end is connected with each other, is also arranged with matched positioning sleeve on the upside of positioning wedged block,
The locating groove I that piston rod both ends are provided with valve rod link slot and are connected with valve rod link slot, valve rod upper end be provided with
The corresponding locating groove II of locating groove I.
4. a kind of sanitary pneumatic reversal valve according to claim 1, it is characterised in that: the core assembly includes valve
Valve and above and below flap two sides valve clack sealing ring, be provided with compression inclined-plane on valve clack sealing ring, flap two sides difference up and down
It is provided with the top board and lower platen to offset with valve clack sealing ring, top board and lower platen are round-like structure setting, and on
Pressing plate and the valve rod are an integral structure setting.
5. a kind of sanitary pneumatic reversal valve according to claim 4, it is characterised in that: be provided at the flap center
Flap through-hole compatible with the valve rod, stem lower portion pass through flap through-hole and by setting follower bolt and the lower platens
It is mutually permanently connected, the pressing plate for sealing circle matched with lower platen is arranged on follower bolt, flap is provided with two sides up and down
Seal groove compatible with the valve clack sealing ring.
6. a kind of sanitary pneumatic reversal valve according to claim 1, it is characterised in that: the gland and gland are convex
It rises and is an integral structure setting, be respectively arranged with compatible external screw thread and internal screw thread on gland protrusion and the packing groove,
Lace shape or regular polygon structure setting is arranged in gland.
7. a kind of sanitary pneumatic reversal valve according to claim 5, it is characterised in that: the sealing plate, airtight and watertight padding,
T-type sealing ring, valve clack sealing ring and pressing plate for sealing circle are all made of fluorubber and are made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821347890.3U CN208587537U (en) | 2018-08-21 | 2018-08-21 | A kind of sanitary pneumatic reversal valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821347890.3U CN208587537U (en) | 2018-08-21 | 2018-08-21 | A kind of sanitary pneumatic reversal valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208587537U true CN208587537U (en) | 2019-03-08 |
Family
ID=65543972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821347890.3U Active CN208587537U (en) | 2018-08-21 | 2018-08-21 | A kind of sanitary pneumatic reversal valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208587537U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112303319A (en) * | 2020-12-21 | 2021-02-02 | 安徽龙泽实业有限公司 | Pneumatic reversing valve |
-
2018
- 2018-08-21 CN CN201821347890.3U patent/CN208587537U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112303319A (en) * | 2020-12-21 | 2021-02-02 | 安徽龙泽实业有限公司 | Pneumatic reversing valve |
| CN112303319B (en) * | 2020-12-21 | 2024-02-06 | 安徽龙泽实业有限公司 | Pneumatic reversing valve |
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