CN204692621U - A kind of Pneumatic double gate valve - Google Patents
A kind of Pneumatic double gate valve Download PDFInfo
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- CN204692621U CN204692621U CN201520415970.8U CN201520415970U CN204692621U CN 204692621 U CN204692621 U CN 204692621U CN 201520415970 U CN201520415970 U CN 201520415970U CN 204692621 U CN204692621 U CN 204692621U
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- valve
- middle shell
- hole
- cylinder
- double gate
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Abstract
The utility model provides a kind of Pneumatic double gate valve, comprise two side bodies with through hole, two side bodies have the middle shell of cavity to a clamping fixed inside, middle shell and two side bodies form a valve cavity jointly, the through hole on side body and valve cavity UNICOM; Be provided with spool in valve cavity, middle shell extenal fixation one cylinder, cylinder piston rod is fixedly connected with spool through middle shell, and the translation in valve cavity of band movable valve plug, makes the mutual UNICOM of the through hole on two side bodies or isolation; Piston rod penetrates middle shell place and is outside in provided with a gland, stuffing box packing and two seal rings successively, and gland is fixedly connected with middle shell and stuffing box packing is compressed.Valve mechanism is simple, and cost is low, and overall tightness increases greatly, uses more stable, reliable.
Description
Technical field
The utility model relates to a kind of valve, is specifically related to a kind of Pneumatic double gate valve.
Background technique
Pneumatic double gate valve is applicable to, on the pipeline that medium is water, gas, dust-containing airflow, ultrafine particle etc., be widely used in the industries such as oil, chemical industry, pharmacy, electric power at present.
Existing Pneumatic double gate valve structure is almost similar, but the wear resistance of valve, encapsulation are not good, cannot realize life-span length and the good pressure maintaining effect without inside and outside pressure release.Such as when work with pressure, medium is easily from cylinder piston rod and valve body joint to outward leakage, and the material of valve plate and sealing mostly is alloyed steel; wear resistance is not as adopting valve plate and the valve seat of ceramic material; cause overall valve short for working life, maintenance down is frequent, and user's cost of production increases.
Model utility content
The purpose of this utility model is the Pneumatic double gate valve providing a kind of new structure, replace existing Pneumatic double gate valve, simplify the structure of valve, improve valve wear resistance and working life, sealability reaches zero leakage, maintenance load greatly reduces, safe and reliable, greatly reduces the operating cost of user.
For realizing above object, the utility model provides a kind of Pneumatic double gate valve, comprises two side bodies with through hole, and two side bodies have the middle shell of cavity to a clamping fixed inside, middle shell and two side bodies form a valve cavity jointly, the through hole on side body and valve cavity UNICOM; Be provided with spool in valve cavity, middle shell extenal fixation one cylinder, the piston rod of cylinder is fixedly connected with spool through middle shell, and the translation in valve cavity of band movable valve plug, makes the mutual UNICOM of the through hole on two side bodies or isolation; Piston rod penetrates middle shell place and is outside in provided with a gland, stuffing box packing and two seal rings successively, and gland is fixedly connected with middle shell and stuffing box packing is compressed.
Further, piston rod outer end and the spool joint of cylinder are provided with a cylinder connector, be provided with endoporus, be provided with stage clip in endoporus in cylinder connector, and spool comprises two valve plates arranged dorsad, and two valve plates compress with side body madial wall all the time under the effect of stage clip.
Further, be provided with ceramic valve seat inside side body through hole, the sealing surface of valve plate is provided with ceramic plate, and side body inwall is provided with along the moving direction of valve plate the guide rail supporting valve plate translation.
Further, middle shell is provided with the purge hole with valve cavity UNICOM, and purge hole is provided with internal thread, and utilizes internal thread to fix a plug.
Further, in cylinder piston, be provided with magnetic rings, outside cylinder barrel, be provided with magnetic switch.
The beneficial effects of the utility model are: by arranging side body, middle shell, spool, and make the overall structure of valve simple, easy to manufacture, cost is low, easy to maintenance; Piston rod penetrates middle shell place and is provided with stuffing box packing and two seal rings, and by gland press seal filler, the overall tightness of valve is increased greatly, reveals and is kept to zero, use more stable, reliable; Valve plate is by stage clip effect, all the time close contact is kept with side body inner wall sealing face, simultaneously, be provided with ceramic valve seat and ceramic plate on the contact surface, the overall wear resistance of valve and alloyed steel are compared, life-span improves 2-3 times, and cost reduces by 30%-40%, and maintenance down frequency reduces by more than 3 times; Arrange guide rail, make spool can have good support at the volley, remain translation, reliability is higher; Purge hole and plug are set, detecting and removing process during valve internal filter medium clogging of valve internal situation can be facilitated, also can utilize the external pressure release of purge hole; Cylinder arranges magnetic rings and magnetic switch, and whether switch puts in place accurately can to understand valve, understands valve switch working state in time, realizes remote auto and controls.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is plan view of the present utility model;
Fig. 2 is left view of the present utility model;
Embodiment
For making the object of the utility model embodiment, technological scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technological scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment 1:
See figures.1.and.2, the utility model provides a kind of Pneumatic double gate valve, comprise two side bodies 2 with through hole 1, two side bodies 2 have the middle shell 3 of cavity to a clamping fixed inside, middle shell 3 and two side bodies 2 form a valve cavity 4, the through hole 1 on side body 2 and valve cavity 4 UNICOM jointly; Be provided with spool in valve cavity 4, middle shell 3 extenal fixation one cylinder 5, the piston rod 6 of cylinder 5 is fixedly connected with spool through middle shell 3, the translation in valve cavity 4 of band movable valve plug, makes through hole 1 UNICOM or the isolation mutually on two side bodies 2; Piston rod 6 penetrates middle shell 3 place and is outside in provided with a gland 7, stuffing box packing 8 and two seal rings 9 successively, and gland 7 is fixedly connected with middle shell 3 and stuffing box packing 8 is compressed.The utility model is by arranging side body 2, middle shell 3, spool, make the overall structure of valve simple, easy to manufacture, cost is low, easy to maintenance, simultaneously, piston rod 6 penetrates middle shell 3 place and is provided with stuffing box packing 8 and two seal rings 9, and by gland 7 press seal filler 8, the overall tightness of valve is increased greatly, leakage is kept to zero, uses more stable, reliable.
Preferably, piston rod 6 outer end of cylinder 5 and spool joint are provided with a cylinder connector 10, are provided with endoporus in cylinder connector 10, are provided with stage clip 11 in endoporus, spool comprises two valve plates arranged dorsad, 12, two valve plates 12 and compresses with side body 2 madial wall all the time under the effect of stage clip 11.Adopt this kind of structure, make valve plate 12 under the effect of stage clip 11, can keep press seal state all the time with side body 2 madial wall, no matter valve plate 12 is in static or motion state, does not all affect its sealing effect.
Preferably, in order to make valve whole service life longer, frequency of maintenance is lower, is provided with ceramic valve seat 13 inside side body 2 through hole 1, the sealing surface of valve plate 12 is provided with ceramic plate 14, and side body 2 inwall is provided with along the moving direction of valve plate 12 guide rail 15 supporting valve plate 12 translation.Be provided with ceramic valve seat 13 and ceramic plate 14 on the contact surface, the overall wear resistance of valve and alloyed steel are compared, the life-span improves 2-3 times, and cost reduces by 30%-40%, and maintenance down frequency reduces by more than 3 times.
Preferably, middle shell 3 is provided with the purge hole 16 with valve cavity 4 UNICOM, and purge hole 16 is provided with internal thread, and utilizes internal thread to fix a plug 17.Purge hole 16 is set, detecting and removing process during valve internal filter medium clogging of valve internal situation can be facilitated, also can utilize purge hole 16 externally pressure release, not need valve to take apart time most of to clear up, use more flexible.
Preferably, whether conveniently understand valve switch and put in place, be provided with magnetic rings in cylinder 5 piston, 5, cylinder if being provided with magnetic switch outward.Adopt this mode, whether switch puts in place not only accurately can to understand valve, understands valve switch working state in time, is also convenient to realize remote auto and controls.
When pressurized air passes into from the enterprising gas port of cylinder 5, cylinder 5 piston rod 6 drives valve plate 12 to move downward, valve closing.When pressurized air passes into from the lower suction port of cylinder 5, cylinder 5 piston rod 6 drives valve plate 12 to move upward, valve opening.Valve plate 12 acts on by stage clip 11, all the time compress with side body 2 madial wall, allow that again valve plate 12 moves in direction vertically, this contributes to compensating expanding with heat and contract with cold of valve parts, and can overcome any economy on the impact of sealing and prevent granule medium from entering between sealing surface.In opening-closing process, valve plate 12 can produce rotation, makes to produce grinding, polishing action between sealing surface, and these all features, making this valve using state reliable and stable, for using the system safety operation of this valve, providing reliable guarantee.
The beneficial effects of the utility model are: by arranging side body 2, middle shell 3, spool, and make the overall structure of valve simple, easy to manufacture, cost is low, easy to maintenance; Piston rod 6 penetrates middle shell 3 place and is provided with stuffing box packing 8 and two seal rings 9, and by gland 7 press seal filler 8, the overall tightness of valve is increased greatly, reveals and is kept to zero, use more stable, reliable; Valve plate 12 is acted on by stage clip 11, all the time close contact is kept with side body 2 inner wall sealing face, simultaneously, be provided with ceramic valve seat 13 and ceramic plate 14 on the contact surface, the overall wear resistance of valve and alloyed steel are compared, life-span improves 2-3 times, and cost reduces by 30%-40%, and maintenance down frequency reduces by more than 3 times; Arrange guide rail 15, make spool can have good support at the volley, remain translation, reliability is higher; Purge hole 16 and plug 17 are set, detecting and removing process during valve internal filter medium clogging of valve internal situation can be facilitated, also can utilize purge hole 16 externally pressure release; Cylinder 5 arranges magnetic rings and magnetic switch, and whether switch puts in place accurately can to understand valve, understands valve switch working state in time, realizes remote auto and controls.
It should be noted that, in this article, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
Above embodiment only in order to the technical solution of the utility model to be described, is not intended to limit; Although be described in detail the utility model with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be modified to the technological scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of each embodiment's technological scheme of the utility model.
Claims (5)
1. a Pneumatic double gate valve, it is characterized in that: comprise two side bodies with through hole, two side bodies have the middle shell of cavity to a clamping fixed inside, middle shell and two side bodies form a valve cavity jointly, the through hole on side body and valve cavity UNICOM; Be provided with spool in valve cavity, middle shell extenal fixation one cylinder, the piston rod of cylinder is fixedly connected with spool through middle shell, and the translation in valve cavity of band movable valve plug, makes the mutual UNICOM of the through hole on two side bodies or isolation; Piston rod penetrates middle shell place and is outside in provided with a gland, stuffing box packing and two seal rings successively, and gland is fixedly connected with middle shell and stuffing box packing is compressed.
2. Pneumatic double gate valve according to claim 1, it is characterized in that: piston rod outer end and the spool joint of described cylinder are provided with a cylinder connector, endoporus is provided with in cylinder connector, stage clip is provided with in endoporus, spool comprises two valve plates arranged dorsad, and two valve plates compress with side body madial wall all the time under the effect of stage clip.
3. Pneumatic double gate valve according to claim 2, is characterized in that: be provided with ceramic valve seat inside described side body through hole, the sealing surface of valve plate is provided with ceramic plate, and side body inwall is provided with along the moving direction of valve plate the guide rail supporting valve plate translation.
4. Pneumatic double gate valve according to claim 1 and 2, is characterized in that: described middle shell is provided with the purge hole with valve cavity UNICOM, and purge hole is provided with internal thread, and utilizes internal thread to fix a plug.
5. Pneumatic double gate valve according to claim 1 and 2, is characterized in that: be provided with magnetic rings in described cylinder piston, be provided with magnetic switch outside cylinder barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520415970.8U CN204692621U (en) | 2015-06-16 | 2015-06-16 | A kind of Pneumatic double gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520415970.8U CN204692621U (en) | 2015-06-16 | 2015-06-16 | A kind of Pneumatic double gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204692621U true CN204692621U (en) | 2015-10-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520415970.8U Expired - Fee Related CN204692621U (en) | 2015-06-16 | 2015-06-16 | A kind of Pneumatic double gate valve |
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| Country | Link |
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| CN (1) | CN204692621U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107246478A (en) * | 2017-06-07 | 2017-10-13 | 长沙理工大学 | Operation and maintenance method of lift valve for gas turbine |
| CN110345271A (en) * | 2019-08-05 | 2019-10-18 | 曹怿男 | A kind of total closed type gate valve and its working method |
| CN112178231A (en) * | 2020-10-27 | 2021-01-05 | 北京洁绿环境科技股份有限公司 | Air bag sealed high-temperature high-pressure knife gate valve |
-
2015
- 2015-06-16 CN CN201520415970.8U patent/CN204692621U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107246478A (en) * | 2017-06-07 | 2017-10-13 | 长沙理工大学 | Operation and maintenance method of lift valve for gas turbine |
| CN110345271A (en) * | 2019-08-05 | 2019-10-18 | 曹怿男 | A kind of total closed type gate valve and its working method |
| CN112178231A (en) * | 2020-10-27 | 2021-01-05 | 北京洁绿环境科技股份有限公司 | Air bag sealed high-temperature high-pressure knife gate 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: 20151007 Termination date: 20200616 |