CN201723758U - Valve cover structure of gate valve - Google Patents
Valve cover structure of gate valve Download PDFInfo
- Publication number
- CN201723758U CN201723758U CN2010202545240U CN201020254524U CN201723758U CN 201723758 U CN201723758 U CN 201723758U CN 2010202545240 U CN2010202545240 U CN 2010202545240U CN 201020254524 U CN201020254524 U CN 201020254524U CN 201723758 U CN201723758 U CN 201723758U
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- valve
- hole
- cover structure
- cylindrical shell
- valve gap
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Abstract
The utility model discloses a valve cover structure of a gate valve, which has simple structure and labour- and time-saving operation and can reduce the fiction between a valve cover and a valve stem nut so as to prolong the service life of the gate valve, and solves the technical problem that the valve cover and the valve stem nut of the existing gate valve in the prior art are easy to wear in use so as to reduce the service life of the gate valve and cause big operation torque and time-labour waste of the valve and the like. The valve cover structure comprises the valve cover, wherein a through hole for passing through the valve stem is formed on the valve cover; the valve stem nut is rotatably arranged on a corresponding valve stem inside the valve cover; an oil storage tank is arranged inside the through hole, and an opening of the oil storage tank faces the valve stem nut and is communicated with an oil cup on the valve cover.
Description
Technical field
The utility model relates to a kind of valve cover structure, thereby relates in particular to the gate valve valve cover structure that a kind of friction that reduces between valve gap and the Stem Mut increases the service life.
Background technique
Gate valve is the usual means that is used for only putting pipeline internal medium that is installed on the pipeline, and valve gap is one of main parts size of forming on gate valve, valve gap is above valve body, the through hole that one end of valve rod is passed down through on the valve gap links to each other with flap, the other end of valve rod upwards links to each other with handwheel, a Stem Mut spins on corresponding to the valve rod in the valve gap through hole, it between Stem Mut and the valve gap Spielpassung, in operating process, owing to produce relative movement between Stem Mut and the valve gap, therefore valve gap and Stem Mut very easily wear and tear, and reduce the working life of gate valve, and the valve operation moment of torsion is big simultaneously, the working costs effort.
Chinese patent discloses a kind of valve gap and bracket institution (CN201326759Y) of gate valve, and it comprises a valve gap and a support, and this valve gap and support are integral structure.Though this structure can be saved manufacture cost, have equally that valve gap and Stem Mut very easily wear and tear in the operating process, thereby reduce the working life of gate valve, and problems such as the valve operation moment of torsion is big, working costs effort.
Summary of the invention
The utility model mainly provided a kind of simple in structure, operation is time saving and energy saving, can reduce friction between valve gap and the Stem Mut again, thereby the gate valve valve cover structure that prolongs the working life of gate valve, valve gap and Stem Mut are easy to wear when having solved the gate valve use that exists in the prior art, thereby reduced the working life of gate valve, made again simultaneously that the valve operation moment of torsion is big, the technical problem of working costs effort etc.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals: a kind of gate valve valve cover structure, comprise valve gap, on valve gap, be provided with the through hole of interspersed valve rod, on corresponding to the valve rod in the valve gap, be connected with Stem Mut, be provided with oil storage tank in described through hole, the opening of described oil storage tank is conducted towards Stem Mut and with lubricating cup on the valve gap.By in the through hole of valve gap, oil storage tank being set, oil storage tank again with valve gap on lubricating cup be conducted, can in oil storage tank, add lubricant oil at any time by lubricating cup, thereby realize lubricating between valve gap and Stem Mut, simple in structure, owing to realize being added with lubricant oil between valve gap and Stem Mut, friction between valve gap and the Stem Mut is reduced, reduce the wearing and tearing of valve gap and Stem Mut, prolonged the working life of gate valve, frictional force between valve gap and Stem Mut reduction simultaneously also makes the valve operation moment of torsion reduce, and operates light, time saving and energy saving.
As preferably, described oil storage tank is for being located in the annular groove on the through-hole wall face together, be provided with oil hole radially on the outer wall of described valve gap, the outboard end of described oil hole links to each other with lubricating cup, and the medial extremity of described oil hole and the bottom of annular groove connect.The oil storage tank of circular groove structure can guarantee that the fitting surface of Stem Mut and valve gap all can be lubricated, and prevents the gate valve life-span reduction that concentrated wear causes; Oil storage tank links to each other with lubricating cup by oil hole, and is simple in structure, easily processing.
As preferably, described lubricating cup comprises that the cylindrical shell that opening is inwardly rabbeted in oil hole reaches with the pressure spring that is located in the cylindrical shell, the coaxial tank filler sleeve that is provided with is provided with spheroid between described pressure spring and tank filler sleeve in the bottom of described cylindrical shell, and described spheroid shutoff is on tank filler sleeve.Lubricating cup is directly rabbeted in oil hole, and orientation type is simple and reliable; Opening and closing by pressure spring and spheroid control tank filler sleeve, the overhead spheroid is inside, tank filler sleeve is opened the lubricant oil of can annotating in cylindrical shell, filling back spheroid automatic resilience shutoff tank filler sleeve under the effect of pressure spring, tank filler sleeve is closed, therefore as long as regular filling lubricant oil in cylindrical shell can satisfy lubricating requirement, simple in structure, be skillfully constructed.
As more preferably, be provided with flange at the opening of described cylindrical shell, described flange is towards the center of cylindrical shell, and the outboard end of described pressure spring is connected on the flange.By at the opening setting of cylindrical shell in-flanges towards the cylindrical shell center, can limit the position of pressure spring by flange, prevent that the lubricating cup that pressure spring causes when directly contact with valve gap from deviating from oil hole, the reliability height, simple in structure, be easy to process and installation.
As more preferably, described tank filler sleeve is the big outer young sphere hole of internal orifice, and the inner ring surface of described tank filler sleeve and spheroid interworking offset.Cooperate with spheroid by sphere hole to offset, prevent the oil leak that tank filler sleeve is not closed completely and causes, install reliable.
Therefore, a kind of gate valve valve cover structure of the present utility model has following advantage: by the oil storage tank that links to each other with lubricating cup is set in the through hole of valve gap, can lubricate the fitting surface of valve gap and Stem Mut by the lubricant oil of sending into from lubricating cup, therefore reduced the friction between valve gap and the Stem Mut, simple in structure, reduce the wearing and tearing of valve gap and Stem Mut, thereby prolonged the working life of gate valve, and the valve operation moment of torsion is reduced, operate light, time saving and energy saving; The oil storage tank of circular groove structure can guarantee that the fitting surface of Stem Mut and valve gap all can obtain imitating lubricated; Lubricating cup is directly rabbeted in oil hole, and orientation type is simple and reliable; Pressure spring cooperates the opening and closing of controlling tank filler sleeve with spheroid, simple in structure, be skillfully constructed.
Description of drawings:
Fig. 1 is the structural representation of a kind of gate valve valve cover structure of the utility model.
Fig. 2 is an A place enlarged view shown in Figure 1.
Fig. 3 is the sectional view of valve gap.
Embodiment:
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment:
As shown in figures 1 and 3, in a kind of gate valve valve cover structure of the present utility model, comprise valve gap 1, have one at valve gap 1 middle part and make the valve rod 3 interspersed through holes 11 that pass through, on valve rod 3 by the screw thread Stem Mut 2 that spins, Stem Mut 2 be positioned at through hole 11 and with through hole 11 Spielpassung, in through hole 11, had time oil storage tank 111, oil storage tank 111 is the annular groove coaxial with through hole 11, on the outer wall of valve gap 1, radially have the oil hole 112 of a circle, the outboard end of oil hole 112 lubricating cup 4 of ining succession, the annular groove bottom of the medial extremity of oil hole 112 and oil storage tank 111 connects.As shown in Figure 2, lubricating cup 4 comprises the inwardly columniform cylindrical shell 41 of interlocking in oil hole 112 of opening, coaxial in cylindrical shell 41 pressure spring 42 is housed, coaxially in the bottom of cylindrical shell 41 have a tank filler sleeve 411, tank filler sleeve 411 is the big outer young sphere hole of internal orifice, between pressure spring 42 and tank filler sleeve 411, accompany a spheroid 43, spheroid 43 also is against on the spherical inner ring surface of tank filler sleeve 411 mutually with tank filler sleeve 411 interworkings, form flange 412 after the inside bending of the opening of cylindrical shell 41, the outboard end of pressure spring 42 is connected on the inner side surface edge of flange 412.
During use, the spheroid 43 of ecto-entad overhead cylindrical shell 41 bottoms, 411 place of the tank filler sleeve on lubricating cup 4 at first, pressure spring 42 compressions, tank filler sleeve 411 is opened the back and inject lubricant oil in cylindrical shell 41, unclamp spheroid 43 after finishing, spheroid 43 resets under the effect of pressure spring 42, and tank filler sleeve 411 is closed.
Specific embodiment described herein only is that design of the present utility model is illustrated.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Claims (5)
1. gate valve valve cover structure, comprise valve gap (1), on valve gap (1), be provided with the through hole (11) of interspersed valve rod (3), on corresponding to the valve rod (3) in the valve gap (1), be connected with Stem Mut (2), it is characterized in that: be provided with oil storage tank (111) in described through hole (11), the opening of described oil storage tank (111) is conducted towards Stem Mut (2) and with lubricating cup (4) on the valve gap (1).
2. a kind of gate valve valve cover structure according to claim 1, it is characterized in that: described oil storage tank (111) is for being located in the annular groove on through hole (11) internal face together, on the outer wall of described valve gap (1), be provided with oil hole (112) radially, the outboard end of described oil hole (112) links to each other with lubricating cup (4), and the medial extremity of described oil hole (112) and the bottom of annular groove connect.
3. a kind of gate valve valve cover structure according to claim 1 and 2, it is characterized in that: described lubricating cup (4) comprises that the cylindrical shell (41) that opening is inwardly rabbeted in oil hole (112) reaches with the pressure spring (42) that is located in the cylindrical shell (41), the coaxial tank filler sleeve (411) that is provided with in the bottom of described cylindrical shell (41), be provided with spheroid (43) between described pressure spring (42) and tank filler sleeve (411), described spheroid (43) shutoff is on tank filler sleeve (411).
4. a kind of gate valve valve cover structure according to claim 3, it is characterized in that: the opening at described cylindrical shell (41) is provided with flange (412), described flange (412) is towards the center of cylindrical shell (41), and the outboard end of described pressure spring (42) is connected on the flange (412).
5. a kind of gate valve valve cover structure according to claim 3 is characterized in that: described tank filler sleeve (411) is the big outer young sphere hole of internal orifice, and the inner ring surface of described tank filler sleeve (411) and spheroid (43) interworking offset.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202545240U CN201723758U (en) | 2010-07-12 | 2010-07-12 | Valve cover structure of gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202545240U CN201723758U (en) | 2010-07-12 | 2010-07-12 | Valve cover structure of gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201723758U true CN201723758U (en) | 2011-01-26 |
Family
ID=43492085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202545240U Expired - Fee Related CN201723758U (en) | 2010-07-12 | 2010-07-12 | Valve cover structure of gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201723758U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065697A (en) * | 2015-08-20 | 2015-11-18 | 立信阀门集团有限公司 | Gear-transmission zero-leakage flat gate valve |
-
2010
- 2010-07-12 CN CN2010202545240U patent/CN201723758U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065697A (en) * | 2015-08-20 | 2015-11-18 | 立信阀门集团有限公司 | Gear-transmission zero-leakage flat 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 |
Granted publication date: 20110126 Termination date: 20150712 |
|
| EXPY | Termination of patent right or utility model |