CN201396471Y - Constant pressure rubber tube valve - Google Patents
Constant pressure rubber tube valve Download PDFInfo
- Publication number
- CN201396471Y CN201396471Y CN2009200856952U CN200920085695U CN201396471Y CN 201396471 Y CN201396471 Y CN 201396471Y CN 2009200856952 U CN2009200856952 U CN 2009200856952U CN 200920085695 U CN200920085695 U CN 200920085695U CN 201396471 Y CN201396471 Y CN 201396471Y
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- valve
- valve body
- constant pressure
- rubber tube
- flange
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- Expired - Fee Related
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Abstract
The utility model provides a constant pressure rubber tube valve, which belongs to the technical field of valves, and mainly solves the problems of the prior valve that the valve is not provided witha sealing mechanism and is not applied to combustible and explosive granule or chemical medium vacuum pressurization conveyance control system, and is characterized in that the valve comprises a valvebody, a valve rod, a handle, a rubber tube and a rubber tube clamp; a sealing device formed by a stationary ring, a rotating ring, a stationary ring and a sealed cavity gland bush is arranged at thecontact end of the valve body and the valve rod; a constant pressure hole is arranged on the valve body; sealant is arranged in the sealing groove of the valve body; the valve comprises a worm wheel,a instrumentation panel, a pointer and scales formed by the worms arranged on the valve rod as well; a turned-over edge is arranged at the end part of the rubber tube; the connecting flange is a wholebuckled flange. The utility model has the advantages of convenient and flexile opening and dismounting, excellent air tightness and non-leakage, which is mainly used for the cutting off and adjustment of the combustible and explosive granule or chemical medium vacuum pressurization conveyance control system, and is an intrinsically safe valve.
Description
Technical field
The utility model belongs to valve technology field.Be specifically related to a kind of constant pressure hose valve that is adapted to inflammable and explosive grain body or chemical mediator vacuum pressed transport control system especially.
Background technique
At present, ball valve, gate valve, stop valve, dish valve, common rubber pipe valve etc. are several the most frequently used shutoffs valves, and above-mentioned valve respectively has characteristics, can select to use according to the difference of Environmental Conditions.But ball valve, gate valve, stop valve, the dish valve, but there is following deficiency in valves such as common rubber pipe valve when being used as the valve of inflammable and explosive grain body or chemical mediator vacuum pressed transport control system: one, ball valve is the mutation of stopcock, when opening and closing, dangerous matter sources appears in the centre of sphere and valve seal ring easily when producing friction, ball valve is under big pressure reduction condition, contain granule medium and have very big active force (especially when little aperture is worked) in throttling place, thereby just possessed sizable kinetic energy, to spool, valve seat has very big destruction, and its destructive process is similar to the sandblast process.Two, gate valve is applicable to does not usually need frequent keying, and keeps the operating mode of flashboard standard-sized sheet or full cut-off, is not suitable for adjusting, throttling use.Three, the shortcoming of stop valve is as follows: 1, the stop valve fluid resistance is big, and required power is bigger during opening and closing; 2, stop valve is not suitable for the medium of big, the easy coking of band particle, viscosity; 3, the stop valve adjusting function is relatively poor.The wearing and tearing of the sealing surface of stop valve, majority are because foreign material are arranged before spool and the sealing surface, or owing to the imprecision of closed condition, due to the high speed that causes medium is washed away.Four, ball valve gate valve spool when opening and closing contacts all the time with sealing surface of seat and friction mutually, thereby sealing surface weares and teares easily, and particularly when valve was near closed condition, pressure reduction was very big before and after the spool, and sealing surface wear is just even more serious.Five, the shortcoming of butterfly valve is as follows: 1, working pressure and operating temperature range are little; 2, sealing is relatively poor.Six, common rubber pipe valve can not form vacuum at negative pressure area in the valve pocket, can not reach balance as the pressure of medium and valve pocket, forms big pressure reduction, has influenced the unlatching after the valve closes especially under negative pressure condition, and final influence is used.Seven, the above valve is not owing to be provided with graduation apparatus, thereby can not show the open and-shut mode of valve.Eight, the above is except that common rubber pipe valve, and medium easily leaks from valve stem seal.
Summary of the invention
The purpose of this utility model provides a kind of inflammable and explosive grain body or chemical mediator vacuum pressed transport control system of being specially adapted at above-mentioned deficiency exactly, open convenient, flexible, good airproof performance, leak free constant pressure hose valve.
Technical solution of the present utility model is a constant pressure hose valve, comprises valve body, valve rod, handle, sebific duct and sebific duct folder, and it is characterized in that: the contact jaw at valve body and valve rod is provided with the seal arrangement that is made of stationary ring, rotating ring, stationary ring and Seal cage gland; On valve body, be provided with the constant voltage hole; In the seal groove of valve body, be provided with sealer.
Also comprise by turbine, instrument panel, pointer in the technical solution of the present utility model and be arranged on the scale display unit that the scroll bar on the valve rod constitutes, wherein, turbine is connected with scroll bar on the valve rod, and pointer is fixed on the turbine, and instrument panel is arranged on the Seal cage gland.
The port of the sebific duct described in the technical solution of the present utility model is provided with the whole flange sealing that covers the valve flange end face.
The adpting flange of the valve body described in the technical solution of the present utility model is an entire card button flange.
Valve body described in the technical solution of the present utility model is provided with locating stud.
The utility model is because at the valve body that has rubber pipe valve now, valve rod, handle, on the basis of sebific duct and sebific duct folder, contact jaw at valve body and valve rod is provided with by stationary ring, rotating ring, the seal arrangement that stationary ring and Seal cage gland constitute, on valve body, be provided with the constant voltage hole, in the seal groove of valve body, be laid with sealer, thereby can realize end surface mechanical sealing, make valve pocket have higher sealability, valve pocket and hydrodynamic pressure can be realized balance, the straight-through type design has reduced the resistance to medium to greatest extent, is a kind of adjusting that is specially adapted to inflammable and explosive grain body or chemical mediator vacuum pressed transport control system, valve by double action.The utility model is owing to be provided with by turbine, instrument panel, pointer and be arranged on the scale display unit that the scroll bar on the valve rod constitutes, thereby can accurately show the open and-shut mode of valve.The utility model is owing to adopt whole buckle flange and the design of sebific duct super large flange, thereby need not to add seal arrangement in using connecting.The utility model is provided with locating stud owing to be laid with special seal glue in the seal groove of valve body on valve body, thereby disassembly and assembly and replacing sebific duct are convenient especially.The utility model has overcome the deficiency of existing valve technology, have open convenient, flexible, good airproof performance, leak free characteristics.The utility model is mainly used in ending and adjusting of inflammable and explosive grain body or chemical mediator vacuum pressed transport control system.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
As shown in Figure 1.Valve body 5, valve rod 2, handle 1, sebific duct 8 and sebific duct folder 10 are corresponding identical with structure in the existing constant pressure hose valve, wherein, by hexagon socket head cap screw 7 fastening forming, handle 1 is fixed on valve rod 2 upper ends to valve body 5 by two and half valve bodies, and sebific duct folder 10 is fixed on valve rod 2 lower ends.Different is is provided with the seal arrangement 4 that is made of stationary ring, rotating ring, stationary ring and Seal cage gland 3 at the contact jaw of valve body 5 and valve rod 2, on valve body 5, be provided with constant voltage hole 11, constant voltage hole 11 is a vacuum interface, in the seal groove 6 of valve body 5, be laid with sealer, make valve pocket have higher sealability, valve pocket and hydrodynamic pressure can be realized balance.The scale display unit is made of instrument support 12, turbine 14, instrument panel 13, gauge pointer 15 and the scroll bar 16 that is arranged on the valve rod 2, wherein, turbine 14 is connected with scroll bar 16 on the valve rod 2, pointer 15 is fixed on the turbine 14, instrument panel 13 is arranged on the Seal cage gland 3, pointer 15 rotates with valve rod 2 by turbine 14, can show the open and-shut mode of valve.The port of sebific duct 8 is provided with the super large flange that covers valve body 5 end face of flange, and the adpting flange of valve body 5 is whole buckle flange, in use need not to add seal arrangement.Sebific duct 8 adopts the nitrile rubber pipe.Locating stud 9 is arranged in the blind hole in the valve body 5, is convenient to dismounting, installs.
Claims (5)
1, constant pressure hose valve, comprise valve body (5), valve rod (2), handle (1), sebific duct (8) and sebific duct folder (10), it is characterized in that: the contact jaw at valve body (5) and valve rod (2) is provided with the seal arrangement (4) that is made of stationary ring, rotating ring, stationary ring and Seal cage gland (3); On valve body (5), be provided with constant voltage hole (11); In the seal groove (6) of valve body (5), be provided with sealer.
2, constant pressure hose valve according to claim 1, it is characterized in that: also comprise by worm gear (14), instrument panel (13), pointer (15) and be arranged on the scale display unit that the worm screw (16) on the valve rod (2) constitutes, wherein, worm gear (14) is connected with worm screw (16) on the valve rod (2), pointer (15) is fixed on the worm gear (14), and instrument panel (13) is arranged on the Seal cage gland (3).
3, constant pressure hose valve according to claim 1 and 2 is characterized in that: the port of described sebific duct (8) is provided with the whole flange sealing that covers valve body (5) end face of flange.
4, constant pressure hose valve according to claim 1 and 2 is characterized in that: the adpting flange of described valve body (5) is an entire card button flange.
5, constant pressure hose valve according to claim 1 and 2 is characterized in that: described valve body (5) is provided with locating stud (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200856952U CN201396471Y (en) | 2009-05-06 | 2009-05-06 | Constant pressure rubber tube valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200856952U CN201396471Y (en) | 2009-05-06 | 2009-05-06 | Constant pressure rubber tube valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201396471Y true CN201396471Y (en) | 2010-02-03 |
Family
ID=41618980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200856952U Expired - Fee Related CN201396471Y (en) | 2009-05-06 | 2009-05-06 | Constant pressure rubber tube valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201396471Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016779A (en) * | 2012-12-20 | 2013-04-03 | 南通市扬子橡塑有限公司 | Rubber tube pinch valve |
-
2009
- 2009-05-06 CN CN2009200856952U patent/CN201396471Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016779A (en) * | 2012-12-20 | 2013-04-03 | 南通市扬子橡塑有限公司 | Rubber tube pinch valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100203 Termination date: 20180506 |