CN102401177A - Globe valve or gate valve - Google Patents
Globe valve or gate valve Download PDFInfo
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- CN102401177A CN102401177A CN2010102826179A CN201010282617A CN102401177A CN 102401177 A CN102401177 A CN 102401177A CN 2010102826179 A CN2010102826179 A CN 2010102826179A CN 201010282617 A CN201010282617 A CN 201010282617A CN 102401177 A CN102401177 A CN 102401177A
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- screw thread
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Abstract
The invention relates to a globe valve or gate valve with increased adjusting thread diameter. The globe valve or gate valve has the design key point that the diameter of an adjusting thread is increased as much as possible when valve dimensions and structure allow, so that the service life is prolonged by lowering the thread work ratio pressure. Therefore, the globe valve or gate valve is especially applicable to the structure of an all-plastic valve. In addition, after the dimensions of the adjusting thread are increased, a step pitch thread or multiple-head thread can be adopted, the number of turns of a hand wheel required by opening or closing a valve is greatly reduced, and the working efficiency can be increased.
Description
The invention belongs to the open and close structure of valve, particularly a kind of valve open and close that prolongs is regulated screw thread life-span and the valve open and close structure that reduces the required rotation number of turns of open and close.
Spherical valve (Globe valve or stop valve) and gate valve (Gate valve) are the devices of the control flow commonly used of various liquid conducting pipes, and its structure has been continued to use last 100 years, do not change basically.The structural similarity part of these two types of valves is; Its control valve open and close is (the seeing accompanying drawing 1,2) realized through the axle that is arranged at a middle little band microgroove of valve; Promptly when control handwheel above the rotating valve or handle; Drive the little axle in this center or claim valve core rotation; Since have on the little axle outside thread be meshed with internal thread on the valve gap (some gate valve structure be little male thread be meshed) with internal thread in the flashboard make little axle or flashboard produce upper and lower moving, thereby the unlatching of change valve is big or small and flow is controlled.The advantage of this structure is a compact structure, but following comparatively important disadvantages is arranged:
1, the last screw thread (being commonly called as " stripped thread ") easy to wear of little axle causes valve to close, and current overflow in a large number, cause the serious waste of water resources;
2, because little male thread is paid is the decision vital part (another easily damaged parts is a sealing gasket, and this part is easy to change voluntarily, repair) in valve working life, manyly at present make, but still fall short of its working life with the copper material, therefore, can not change it into plastics simply.In recent years; Non-toxic plastic such as PVC, PPR has obtained having used widely and having practiced thrift a large amount of copper resources on ball valve (Ball valve); But on spherical valve (Globe valve) and gate valve, still fail to promote its application, so in recent years, occurred the spherical valve of a kind of semimetal, half plastics again or claimed stop valve (Stop valve); Be characterized in valve body has been made into plastic, but its valve gap still keeps by the metallic material manufacturing with the little axle of control.Though this structure can be practiced thrift half the copper resource, but still consuming a large amount of copper resources, through the Alibaba site search, at present domestic have above factory of 60 families at least at the valve (referring to annex one) of producing this structure.
3, because the external diameter of little axle is very little, its thread pitch also little (being generally about 1.5mm) thereby when making opening and closing, the number of turns of the required rotation of handwheel is a lot, makes operation comparatively time-consuming.
Based on above-mentioned situation; In order to address the above problem more up hill and dale; Need improve this valve mechanism of continuing to use for a long time,, not find relevant improved report at present as yet through retrieval; Therefore, main purpose of the present invention is that rational Design on Plane through valve control mechanism improves its working life.
Another object of the present invention is through the design that rationalizes, and makes this mechanism can use the plastics manufacturing, thereby reduces its cost of production and the copper resource of practicing thrift a large amount of preciousnesses significantly.
A further object of the present invention is the number of turns of the required rotation of handwheel when reducing the valve open and close through the design that rationalizes, so that improve operating efficiency.
Summary of the invention
Because the life-span of existing valve depends primarily on its control screw rod (little axle) and goes up the life-span of screw thread (perhaps it is to the life-span of the nut thread nibbled); And the specific pressure that born when depending on its work of the life-span of this screw thread; Therefore, in order to address this problem the size that just need within the scope that physical dimension allows, strengthen this screw thread as far as possible, make long-pending the increasing of contact surface of screw thread; Specific pressure when also just having reduced its work simultaneously; When this specific pressure value drops to the tolerance zone of certain material (for example PVC) when following, can use this material, and can make it to have sufficiently long working life.In addition, after the diameter of thread strengthens, just can adopt bigger pitch, thus the number of turns of the required rotation of handwheel during minimizing valve open and close.Thus it is clear that, manage to strengthen the outside dimension of regulating screw thread and be the comprehensive effective method that solves several comparatively serious problem that present above-mentioned valve exists.
Basic thought of the present invention is, in the scope that valve boundary dimension allows, comes to strengthen as much as possible the size that it regulates screw thread through changing the concrete structure shape, and its concrete grammar is to move outside as far as possible from the central position of valve regulating screw thread.Enumerated the example of several structures by thought of the present invention design among several embodiments below.Must be pointed out that these examples are just in order to talk clearly basic conception of the present invention, the present invention is not limited to this several instances; Obviously; Basic conception by foregoing invention can also visualize some other similar structure, and these structures should be included within the scope of the present invention.
Description of drawings
Accompanying drawing 2 is the outline drawing of the present gate valve (Gate valve) that uses, and same, its upper mechanism still keeps by made.
Accompanying drawing 3 is first embodiment's of going out according to conceptual design proposed by the invention sectional drawing.
Accompanying drawing 4 is the profile of the intermediate connector in Fig. 3 scheme.
Accompanying drawing 5 is the top view of accompanying drawing 4.
Accompanying drawing 6 is second embodiment's going out according to conceptual design proposed by the invention sectional drawing.
Accompanying drawing 7 is the sectional drawing of the intermediate connector in Fig. 6 scheme
Accompanying drawing 8 is the top view of accompanying drawing 7.
Accompanying drawing 9 is the 3rd embodiment's going out according to conceptual design proposed by the invention sectional drawing.
Accompanying drawing 10 is the outline drawing of the spool in Fig. 9 scheme
Accompanying drawing 11 is the top view of accompanying drawing 10.
Accompanying drawing 12 is the sectional drawing of a kind of gate valve of going out according to conceptual design proposed by the invention.
Accompanying drawing 13 is the A-A sectional drawing of accompanying drawing 12.
Embodiment specifies
According to notion provided by the present invention, can design a lot of distressed structures, in order to make it easy to understand, explain in the face of several specific embodiments wherein down.Should explain that the purpose of enumerating embodiment is for the present invention more clearly is described, but not the present invention is limited within these several instances; In contrast, according to notion provided by the invention or spirit, can design more distressed structure or suitable structure, obviously these schemes all should be included within the present invention.
Accompanying drawing 1,2 is respectively the outline drawing of present widely used spherical valve (Globe valve or stop valve) and gate valve (Gatevalve); Both tops are equipped with valve gap, and the switching of valve is to realize through the little axle or the title spool that are arranged in the lid, is equipped with outside thread on the little axle; It with valve gap in internal thread be meshed (some gate valve is that screw thread is arranged in its flashboard); So when rotating the handwheel of top, little axle is the upper and lower size that moves and change the valve internal channel.Because the outside dimension of little axle is less, so its screw thread is also less, like this, in use screw thread tends to be polished, thereby makes valve invalidation.In recent years, along with the use of plastics in the valve industry constantly promoted, also the someone wants it is used on spherical valve or the gate valve; But; Because the wear resistance of plastic whorl is poorer than copper screw thread, can not guarantee the due life-span of valve, thereby people has designed a kind of half plastic valve; Promptly only change following valve body into plastics, parts such as top valve gap and little axle have all kept Structural Hardware.Because the Annual output of this type valve is very big, therefore, still wasted a large amount of copper resources every year.
Fig. 3 is first embodiment's of going out according to conceptual design provided by the present invention sectional drawing.
It comprises valve body (20), and its structure is identical with the valve body of the spherical valve of using always at present, and the top of valve body (20) is provided with top (21); Be provided with screw thread or flange etc. in the top (21) and connect key element, so that valve gap or like be connected, in the present embodiment; Be attached thereto connect for intermediate connector (30), be provided with screw thread or the flange arrangement that is connected with the top (21) of above-mentioned valve body (20) in the below of intermediate connector (30), picture is screw thread (31) on the figure; The central authorities of intermediate connector (30) are provided with through hole (32), in order to letting spool (or claim little axle) (33) therefrom pass through, the cylindrical of intermediate connector (30) be provided with regulate screw thread (35) in order to adjustable cap (36) on internal thread (37) be meshed; Be provided with adjustable cap or handwheel (36) in the outside of intermediate connector (30) and the top of valve body; Adjustable cap (36) is that the mode known through screw, snap ring etc. fixes with spool (33) and connects so that both are upper and lower to move and rotate, and the inboard of adjustable cap is provided with internal thread (37) and is meshed with outside thread (35) on the intermediate connector (30), owing to intermediate connector (30) is anchored on the valve body (20); Therefore; When rotating adjustable cap (36), because the interaction of screw thread, adjustable cap is promptly done upper and lowerly to move and drive that spool (33) is upper and lower moves; Thereby change the unlatching size of valve passage; And flow controlled, necessary seal arrangement (38) (39) also should be set, with anti-leak in the valve.Because this programme has adopted a lot of adjusting screw thread of oversized; Its work specific pressure is greatly descended, prolonged, therefore in the life-span of this screw thread greatly; He is particularly suitable for changing mass-produced half plastic valve now into the all-plastic valve, thereby practices thrift a large amount of copper resources.
Fig. 4 is the face shaping of intermediate connector (30), and Fig. 5 is the top view of Fig. 4, and its structure and function are described in the above, no longer repeats.
Second embodiment of Fig. 6 for going out according to conceptual design proposed by the invention.
The main feature of present embodiment be with above-mentioned valve body top (21) up increase and be provided with on its cylindrical outside thread (31) in order to adjustable cap (36) on internal thread (37) be meshed; For this reason; The shape of connecting body wherein (30) has also correspondingly carried out changing (asking comparison diagram 4 and Fig. 7); The major advantage of this scheme is between intermediate connector (30) and the valve body (20) two seals to be arranged, and therefore, its sealing is more reliable.The structure of the remaining part of this programme (spool, adjustable cap etc. and contact each other thereof) is all identical with scheme 1, no longer repeats here.
Fig. 7 is the sectional drawing of the intermediate connector of Fig. 6 scheme, can set up a seal groove on it, so that make the sealing of valve more reliable.
Fig. 8 is the top view of Fig. 7.
Three embodiment of Fig. 9 for going out according to conceptual design proposed by the invention.
The characteristics of this programme are to be arranged on the interior circle at valve body top (21) regulating screw thread; This moment, spool can be integrated with intermediate connector; Make structure more simplify (see figure 10), its concrete practice is on spool, to be provided with the position (331) that increases diameter, and its cylindrical is provided with outside thread (332); Be used for being meshed, below above-mentioned major diameter position (331), be provided with seal groove in order to prevent liquid leakage with the internal thread at above-mentioned valve body top (21).The remaining part of this programme comprises that the structure of connection and sealing gasket (39) of spool and adjustable cap (36) is all identical with aforementioned schemes, no longer repeats here.
Figure 10 is the outline drawing of the spool of this programme.
Figure 11 is the top view of Figure 10.
Figure 12 is the structure of a kind of gate valve of going out according to conceptual design proposed by the invention.
Its structural feature is, except the work of valve has been made into the gate (gate valve with) by gasket seal (spherical valve with), the structure of remaining part is all identical with above-mentioned second embodiment.
Above we have carried out more clearly explaining to basic conception of the present invention through several embodiments; Very clear; Can also develop some other deformation program based on basic conception provided by the present invention; Therefore, the present invention should not be restricted in the scope of the foregoing description, and should make an explanation according to the regulation of following claim.
Claims (6)
1. spherical valve or gate valve; Comprise valve body, switch adjustable lever and switch controlling mechanism etc.; It is characterized in that: said switch controlling mechanism adopts worm structure; And its screw thread is of a size of under the condition that structural design allows and strengthens as far as possible, so that suffered specific pressure when reducing screw thread work, thereby reduce its wearing and tearing and prolong its working life.
2. by described spherical valve of claim 1 or gate valve, it is characterized in that: the top above valve body is provided with linkage structure key elements such as internal thread or flange, and is connected with intermediate connector through it; The below of intermediate connector is provided with linkage structure key elements such as corresponding with it outside thread or flange, and the central authorities of intermediate connector are provided with through hole, in order to let spool therefrom pass through; Its cylindrical is provided with the adjusting screw thread; In order to being meshed with the internal thread of adjustable cap, above the outside of intermediate connector and valve body, be provided with adjustable cap or handwheel, the method that adjustable cap is known through screw, snap ring etc. fixes with spool and is connected; Can make both upper and lower together mobile or rotations; Thereby change the channel sized of valve, also should establish seal arrangement in the valve, in case stopping leak reveals.
3. by described spherical valve of claim 1 or gate valve; It is characterized in that: the top of affiliated valve body is up increased and outside thread is set in order to be meshed with the internal thread of adjustable cap on its cylindrical; The shape of connecting body has also been done corresponding change wherein; Can set up a seal ring above that in case of necessity, make its sealing more reliable, its remaining part (comprising adjustable cap, spool and connecting body thereof) is all identical with claim 2 described structures.
4. by the described spherical valve of claim 1; It is characterized in that: said adjusting screw thread is arranged on the interior circle at valve body top; Its spool and intermediate connector are combined into a part, promptly are provided with the position that increases diameter on the top of spool, and its cylindrical is provided with screw thread and is used for being meshed with the internal thread at above-mentioned valve body top; Below above-mentioned major diameter position, be provided with seal groove in order to prevent leaked liquid, the structure of its remaining part is all described identical with claim 2.
5. by described spherical valve of claim 1 or gate valve, it is characterized in that: its part (except that Sealing and standard piece) is by the plastics manufacturing.
6. by described spherical valve of claim 1 or gate valve, it is characterized in that: said adjusting screw thread adopts steep-pitch thread or multiple thread, the required number of turns that turns of handwheel during in order to minimizing valve open and close.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010282617.9A CN102401177B (en) | 2010-09-16 | 2010-09-16 | A kind of switching mechanism of liquid flow control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010282617.9A CN102401177B (en) | 2010-09-16 | 2010-09-16 | A kind of switching mechanism of liquid flow control valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102401177A true CN102401177A (en) | 2012-04-04 |
| CN102401177B CN102401177B (en) | 2018-02-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010282617.9A Active CN102401177B (en) | 2010-09-16 | 2010-09-16 | A kind of switching mechanism of liquid flow control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102401177B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU509754A1 (en) * | 1972-11-29 | 1976-04-05 | Предприятие П/Я А-7755 | Screw adjustable choke |
| CN2474850Y (en) * | 2001-04-19 | 2002-01-30 | 上海能率有限公司 | Multiple head thread water quantity regulating valve |
| CN200940695Y (en) * | 2006-08-23 | 2007-08-29 | 阳泉阀门股份有限公司 | Quick opening and closing sluice valve for city gas |
| CN201013904Y (en) * | 2006-11-29 | 2008-01-30 | 杜汝益 | Differential spiral up-down plastic stop valve |
| CN101191560A (en) * | 2007-03-21 | 2008-06-04 | 杭州先锋电子技术有限公司 | Eccentric electric ball valve |
| CN101392841A (en) * | 2007-09-20 | 2009-03-25 | 浙江三花股份有限公司 | On-off valve and mechanism for operating the on-off valve |
| CN201281167Y (en) * | 2008-10-27 | 2009-07-29 | 武鸿飞 | Valve with adjustment locking mechanism |
| CN101644335A (en) * | 2009-07-08 | 2010-02-10 | 卓旦春 | Hexagonal stop valve |
| CN201412531Y (en) * | 2009-06-01 | 2010-02-24 | 常州爱普超高压液压系统有限公司 | Right-angled cut off valve |
-
2010
- 2010-09-16 CN CN201010282617.9A patent/CN102401177B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU509754A1 (en) * | 1972-11-29 | 1976-04-05 | Предприятие П/Я А-7755 | Screw adjustable choke |
| CN2474850Y (en) * | 2001-04-19 | 2002-01-30 | 上海能率有限公司 | Multiple head thread water quantity regulating valve |
| CN200940695Y (en) * | 2006-08-23 | 2007-08-29 | 阳泉阀门股份有限公司 | Quick opening and closing sluice valve for city gas |
| CN201013904Y (en) * | 2006-11-29 | 2008-01-30 | 杜汝益 | Differential spiral up-down plastic stop valve |
| CN101191560A (en) * | 2007-03-21 | 2008-06-04 | 杭州先锋电子技术有限公司 | Eccentric electric ball valve |
| CN101392841A (en) * | 2007-09-20 | 2009-03-25 | 浙江三花股份有限公司 | On-off valve and mechanism for operating the on-off valve |
| CN201281167Y (en) * | 2008-10-27 | 2009-07-29 | 武鸿飞 | Valve with adjustment locking mechanism |
| CN201412531Y (en) * | 2009-06-01 | 2010-02-24 | 常州爱普超高压液压系统有限公司 | Right-angled cut off valve |
| CN101644335A (en) * | 2009-07-08 | 2010-02-10 | 卓旦春 | Hexagonal stop valve |
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| Publication number | Publication date |
|---|---|
| CN102401177B (en) | 2018-02-23 |
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Address after: 210003 Jiangsu city in Nanjing Province Southern ruilu zizhulin No. 28 unit 1 Building 1 Room 202 Applicant after: Tan Zeying Address before: Room 301, room 1, No. 23, Nanchang Road, Nanjing, Jiangsu Applicant before: Tan Zeying |
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