CN211288770U - Float ball type stop valve - Google Patents
Float ball type stop valve Download PDFInfo
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- CN211288770U CN211288770U CN201922366891.3U CN201922366891U CN211288770U CN 211288770 U CN211288770 U CN 211288770U CN 201922366891 U CN201922366891 U CN 201922366891U CN 211288770 U CN211288770 U CN 211288770U
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- valve
- floater
- locating rack
- valve body
- float
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Abstract
The utility model provides a floater formula stop valve belongs to the valve field, including valve body, disk seat, valve shaft, floater and valve gap, the valve gap sets firmly the upper end and the two sealed setting of valve body, the disk seat with valve body integrated into one piece, the floater sets up at the entrance point of valve body and establishes the lower extreme of disk seat, the valve body has set firmly the locating rack on being close to the inner wall of entrance point, the lower extreme of floater is equipped with the guide post, the guide post perpendicular to the locating rack sets up and is relative sliding connection about the locating rack the last extreme position of floater, the guide post is located in the locating rack, the valve shaft passes downwards set up behind the valve gap the floater top, the surface cladding of floater has the deformation layer. The utility model discloses thereby utilize water pressure to reach sealed effect with floater jack-up and disk seat in close contact with, pressure is big more, and the floater is inseparabler with the disk seat contact more, and sealing performance is better.
Description
Technical Field
The utility model belongs to the valve field relates to floater formula stop valve.
Background
The stop valve is also called stop valve, belonging to forced sealing type valve, so when the valve is closed, it must apply pressure to valve clack to force sealing surface not to leak, when the medium is fed into the valve from below the valve clack, the resistance force which must be overcome by operation force is the friction force of valve stem and packing material and the thrust force produced by pressure of medium, the force for closing the valve is greater than the force for opening the valve, so the diameter of valve stem is greater, otherwise the failure of stem top bending can occur.
The closing principle of the traditional stop valve is that the sealing surface of the valve clack is tightly attached to the sealing surface of the valve seat by means of the pressure of a valve rod, and the medium is prevented from flowing. This leads to the problem that the sealing surface of the valve flap does not fit tightly against the sealing surface of the valve seat under high pressure.
SUMMERY OF THE UTILITY MODEL
The to-be-solved problem of the utility model is to provide the floater formula stop valve, thereby utilize water pressure to reach sealed effect with floater jack-up and disk seat in close contact with, pressure is big more, and the floater is inseparabler with the disk seat contact, and sealing performance is better.
In order to solve the technical problem, the utility model discloses a technical scheme is: floater formula stop valve, including valve body, disk seat, valve shaft, floater and valve gap, the valve gap sets firmly the upper end and the two sealed setting of valve body, the disk seat with valve body integrated into one piece, the floater sets up at the entrance point of valve body and establishes the lower extreme of disk seat, the valve body has set firmly the locating rack on being close to the inner wall of entrance point, the lower extreme of floater is equipped with the guide post, the guide post perpendicular to the locating rack sets up and is relative sliding connection about the locating rack the last limit position of floater, the guide post is located in the locating rack, the valve shaft passes downwards set up behind the valve gap the floater top, the surface cladding of floater has the deformation layer.
Furthermore, the lower end of the valve shaft is arc-shaped, the radian of the lower end of the valve shaft is the same as the diameter of the floating ball, and a rubber pad is arranged between the lower end of the valve shaft and the floating ball.
Furthermore, a copper sleeve is arranged between the guide column and the positioning frame, and the copper sleeve is embedded in the positioning frame.
Furthermore, the deformation layer is made of rubber, polytetrafluoroethylene or silica gel, and the thickness of the deformation layer is 1.5-5 mm.
Furthermore, a limiting bulge is arranged at the middle lower part of the valve shaft, and the valve shaft is positioned at the upper end of the limiting bulge and penetrates through the valve cover upwards to be connected with the hand wheel.
Furthermore, a sealing ring is arranged between the valve cover and the valve body, the upper end of the valve cover is provided with a packing for sealing, the upper end of the packing is provided with a gland for positioning the packing, and the gland is fixedly connected with the valve cover.
Furthermore, the upper end of the valve cover is provided with a fixed seat which is integrally formed with the valve cover, and the valve shaft is in threaded connection with the fixed seat.
Furthermore, the position of the valve seat matched with the floating ball is a round angle, and the roughness of the valve seat is 0.8.
Compared with the prior art, the utility model has the advantages and positive effect as follows.
1. The utility model realizes sealing by matching the floating ball and the valve seat, has simple structure, only needs to replace the floating ball for maintenance, saves cost, realizes self sealing by the pressure of a medium, has good sealing performance, has larger pressure, and has more close contact between the floating ball and the valve seat and better sealing performance;
2. a rubber pad is arranged between the lower end of the valve shaft and the floating ball, so that when the valve rod applies pressure to the floating ball, the floating ball is uniformly stressed, the floating ball is effectively prevented from being deformed easily, and the stability of the structure is improved;
3. be equipped with the copper sheathing between guide post and the locating rack, can promote the wearability between guide post and the locating rack, prolong the life of guide post.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
fig. 1 is a schematic structural diagram of the floating ball type stop valve of the present invention;
fig. 2 is a detailed view of the portion a of fig. 1 according to the present invention.
Reference numerals:
1. a valve body; 2. a positioning frame; 21. a copper sleeve; 3. a floating ball; 31. a deformation layer; 32. a guide post; 4. a valve seat; 41. round corners; 5. a valve shaft; 51. a rubber pad; 52. a limiting bulge; 6. a valve cover; 61. a fixed seat; 7. a gland; 71. a filler; 8. a hand wheel; 9. and (5) sealing rings.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.
As shown in fig. 1 and 2, the utility model relates to a float stop valve, which comprises a valve body 1, a valve seat 4, a valve shaft 5, a float ball 3 and a valve cover 6, wherein the valve cover 6 is fixedly arranged at the upper end of the valve body 1 and is arranged in a sealing way, the valve seat 4 and the valve body 1 are integrally formed, the float ball 3 is arranged at the inlet end of the valve body 1 and is arranged at the lower end of the valve seat 4, a positioning frame 2 is fixedly arranged on the inner wall of the valve body 1 close to the inlet end, a guide post 32 is arranged at the lower end of the float ball 3, the guide post 32 is vertical to the positioning frame, at the upper limit position of floater 3, guide post 32 is located locating rack 2, and valve shaft 5 passes valve gap 6 back downwards and sets up in the floater 3 top, and the surface cladding of floater 3 has deformation layer 31, uses locating rack 2 and guide post 32 fixed floater 3 motion trail, and floater 3 can only reciprocate along locating rack 2 holes, promotes the precision of floater 3 up-and-down motion.
Preferably, the lower end of the valve shaft 5 is arc-shaped, the radian of the lower end of the valve shaft is the same as the diameter of the floating ball 3, and a rubber pad 51 is arranged between the lower end of the valve shaft 5 and the floating ball 3, so that when the valve rod applies pressure to the floating ball 3, the floating ball 3 is uniformly stressed, the floating ball 3 is effectively prevented from being deformed easily, and the stability of the structure is improved.
Preferably, be equipped with copper sheathing 21 between guide post 32 and the locating rack 2, copper sheathing 21 inlays to be established in locating rack 2, sets up copper sheathing 21 thick, can promote the wearability between guide post 32 and the locating rack 2, prolongs guide post 32's life.
Preferably, the deformation layer 31 is rubber, polytetrafluoroethylene or silica gel material, and the thickness that the deformation layer 31 is 1.5 ~ 5mm, and preferably rubber material, thickness are 2mm, and thickness is too little, and the deflection is not thick, influences sealing performance, if thickness is too big, and the preparation is inconvenient, and floating performance reduces moreover, and specific thickness can carry out appropriate adjustment according to the size of specification and medium flow, guarantees certain pre-compaction deformation, and it can to guarantee the leakproofness.
Preferably, the middle lower part of the valve shaft 5 is provided with a limiting bulge 52, the position of the valve shaft 5, which is positioned at the upper end of the limiting bulge 52, penetrates upwards through the valve cover 6 and then is connected with the hand wheel 8, and after the limiting bulge 52 is arranged, the valve shaft 5 can be prevented from directly falling off from the valve body 1 in the upward rotating process, and the convenience and the safety of the structure operation are improved.
Preferably, a sealing ring 9 is arranged between the valve cover 6 and the valve body 1, a packing 71 for sealing is arranged at the upper end of the valve cover 6, a gland 7 for positioning the packing 71 is arranged at the upper end of the packing 71, the gland 7 is fixedly connected with the valve cover 6, and the sealing performance between the valve shaft 5 and the valve body 1 can be improved after the packing 71 and the gland 7 are arranged.
Preferably, the upper end of valve gap 6 is equipped with rather than integrated into one piece's fixing base 61, can directly be through the foundry goods shaping, and is with low costs in the time of volume mass production, and the preparation is convenient, and valve shaft 5 makes things convenient for 5 rotary operation of valve shaft with fixing base 61 threaded connection.
Preferably, the position that valve seat 4 and floater 3 complex is fillet 41 and roughness is 0.8, and the machining precision is higher, and contact sealing performance is higher, and sealed effect is higher, sets up fillet 41 back, is difficult to cause the damage to floater 3, is favorable to promoting the life of floater 3.
In the actual working process, the valve seat 4 and the valve body 1 are made of the same material, the valve seat 4 and the valve body 1 are integrally cast, the process is simple, the cost is low, the valve seat 4 is finely processed in the later period, the round angle 41 is guaranteed to reach the roughness of more than 0.8 after being ground, the floating ball 3 is integrally encapsulated, the deformation layer 31 is coated outside, the deformation layer 31 is preferably made of rubber, and the floating ball 3 is integrally encapsulated by the rubber to realize sealing;
when the valve is opened, the valve rod is utilized to apply pressure to the floating ball 3, so that the floating ball 3 is separated from the sealing surface of the valve seat 4, and the medium in the pipeline circulates; when the valve is closed, utilize hand wheel 8 to drive the valve rod, make the valve rod rise to certain height, the valve can rely on the pressure of medium to realize self sealedly, thereby 3 come-up of floater and the sealed face in close contact with of disk seat 4 reach sealedly under the effect of medium pressure promptly, prevent the medium circulation, this structure is sealed through the cooperation realization before two parts of floater 3 and disk seat 4, moreover, the maintenance only need change floater 3, the cost is saved, rely on the pressure of medium to realize self sealedly, the sealing performance is good, pressure is big more, floater 3 is inseparabler with the disk seat 4 contact, the sealing performance is good better.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.
Claims (8)
1. Float ball formula stop valve, its characterized in that: including valve body, disk seat, valve shaft, floater and valve gap, the valve gap sets firmly the upper end and the two sealed setting of valve body, the disk seat with valve body integrated into one piece, the floater sets up at the entrance point of valve body and establishes the lower extreme of disk seat, the valve body has set firmly the locating rack on being close to the inner wall of entrance point, the lower extreme of floater is equipped with the guide post, the guide post perpendicular to the locating rack sets up and is relative sliding connection about the locating rack the last extreme position of floater, the guide post is located in the locating rack, the valve shaft passes downwards set up behind the valve gap the floater top, the surface cladding of floater has the deformation layer.
2. The float-type stop valve of claim 1, wherein: the lower end of the valve shaft is arc-shaped, the radian of the lower end of the valve shaft is the same as the diameter of the floating ball, and a rubber pad is arranged between the lower end of the valve shaft and the floating ball.
3. The float-type stop valve of claim 1, wherein: the guide post with be equipped with the copper sheathing between the locating rack, the copper sheathing inlays to be established in the locating rack.
4. The float-type stop valve of claim 1, wherein: the deformation layer is made of rubber, polytetrafluoroethylene or silica gel, and the thickness of the deformation layer is 1.5-5 mm.
5. The float-type stop valve of claim 1, wherein: the middle lower part of the valve shaft is provided with a limiting bulge, and the valve shaft is positioned at the upper end of the limiting bulge and penetrates through the valve cover upwards to be connected with the hand wheel.
6. The float-type stop valve of claim 1, wherein: the valve comprises a valve body, a valve cover, a valve rod, a valve cover and a sealing ring, wherein the valve rod is arranged between the valve cover.
7. The float-type stop valve of claim 6, wherein: the upper end of the valve cover is provided with a fixed seat which is integrally formed with the valve cover, and the valve shaft is in threaded connection with the fixed seat.
8. The float-type stop valve of claim 1, wherein: the valve seat and the position matched with the floating ball are round corners, and the roughness is 0.8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922366891.3U CN211288770U (en) | 2019-12-25 | 2019-12-25 | Float ball type stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922366891.3U CN211288770U (en) | 2019-12-25 | 2019-12-25 | Float ball type stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211288770U true CN211288770U (en) | 2020-08-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922366891.3U Active CN211288770U (en) | 2019-12-25 | 2019-12-25 | Float ball type stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211288770U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112923078A (en) * | 2021-01-20 | 2021-06-08 | 湖北三江航天红峰控制有限公司 | Precision assembling and grinding method for all-metal electromagnetic valve seat |
-
2019
- 2019-12-25 CN CN201922366891.3U patent/CN211288770U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112923078A (en) * | 2021-01-20 | 2021-06-08 | 湖北三江航天红峰控制有限公司 | Precision assembling and grinding method for all-metal electromagnetic valve seat |
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