CN2833278Y - Disc connecting structure for embedded double disc gate valve - Google Patents
Disc connecting structure for embedded double disc gate valve Download PDFInfo
- Publication number
- CN2833278Y CN2833278Y CN 200520079167 CN200520079167U CN2833278Y CN 2833278 Y CN2833278 Y CN 2833278Y CN 200520079167 CN200520079167 CN 200520079167 CN 200520079167 U CN200520079167 U CN 200520079167U CN 2833278 Y CN2833278 Y CN 2833278Y
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- China
- Prior art keywords
- flashboard
- valve
- disc
- gate
- gate disc
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- Expired - Fee Related
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Abstract
The utility model relates to a gate disc connection mechanism for an embedded double-gate disc gate valve, which has the purposes that the sealing performance of a wedge type double-gate disc gate valve is increased and the service life and the exchangeability of the wedge type double-gate disc gate valve are increased. A valve seat (1) is arranged on a valve body (5); the upper end of a left gate disc (2) is connected with a valve rod (7); the left gate disc (2) and a right gate disc (3) are connected in an embedded tooth shape; a top core (4) is arranged in a pit of the right gate disc (3); concave teeth of the left gate disc (2) are embedded in convex teeth of the right gate disc (3); convex teeth of the left gate disc and the convex teeth of the right gate disc are opposite and are mutually connected by rotating at an angle.
Description
Technical field
The utility model relates to the sealing mechanism of wedge-type double-flashboard gate valve.
Background technique
Wedge gate valve has two pairs of sealing pairs usually in the prior art, if the angle of wedge of valve body sealing surface is fixed, the angle of wedge of flashboard sealing surface less than or greater than the angle of wedge of valve body sealing surface, two pairs of sealing pairs have angular error, then just produced the gap between valve body and the flashboard sealing surface, though Flexible disc is under the valve rod responsive to axial force, can produce the certain deformation amount, can the compensated part angular error, but can not eliminate the gap fully, because the existence in the inconsistent gap of causing of angle does not just reach seal request.Two pairs of sealing pair angular error values, the difference along with the difference of the type of valve, structure, size, material, this deviate are difficult to determine, in course of working, only grasp and control with the practical experience of operating, the interchangeability of Wedge gate valve valve body and flashboard is very poor.The double-flashboard sealing configuration all is to adopt the flashboard frame to connect left and right sides flashboard at present, this structure is because the physical dimension of flashboard frame is bigger, cause the wide size of shelves of flashboard to increase, for in small-bore gate valve, valve body structure length overgauge regulation structure length, can not satisfy the regulation of standard pipe collimation method orchid, all be to connect with nonstandard structure length; In use, flashboard frame long period of soaking is in Korrosionsmedium, because the effect of Korrosionsmedium, causes flashboard frame heavy corrosion and ruptures, and causes that left and right sides flashboard comes off, and sealing was lost efficacy easily.The manufacturing efficiency of above-mentioned two factor affecting Wedge gate valve, sealability, working life and interchangeability.
Summary of the invention
The purpose of this utility model provides a kind of embedded double-flashboard gate valve flashboard bindiny mechanism.
The utility model is an embedded double-flashboard gate valve flashboard bindiny mechanism, valve seat (1) is installed on the valve body (5), the upper end of left side flashboard (2) is connected with valve rod (7), left side flashboard (2) is to be connected with embedded gear with right flashboard (3), plunger tip (4) is put into the pit of right flashboard (3), the recessed tooth of left side flashboard (2) embeds the double wedge of right flashboard (3), rotates an angle and makes the double wedge of left and right sides flashboard relative, and be connected to each other.
Left side flashboard (2) is fixing by pin (6) with right flashboard (3).
Usefulness of the present utility model: owing between left and right sides flashboard and plunger tip certain interval is arranged, flashboard enters and arrives closed position between valve body sealing surface, the valve rod axial force is close on the valve body sealing surface left and right sides flashboard sealing surface by the plunger tip ball pivot, eliminated the whole flashboard of Wedge gate valve fully because flashboard sealing surface angle and the inconsistent gap of causing of valve body sealing surface angle, improved the anastomose property of two pairs of sealing pairs, guarantee the reliability of sealing, also can satisfy interchangeability.Both can solve the leakage problem that whole Single disc is caused owing to the valve body resiliently deformable, the sealing in the time of can guaranteeing high pressure again, the sealing in the time of also can guaranteeing low pressure, the simultaneous temperature variation is difficult for causing the scratch of sealing surface and " wedge is dead " phenomenon of flashboard.Flashboard sealing surface and valve body sealing surface are subjected to angular error that machining error and temperature variation cause by full remuneration, have eliminated the gap of two sealing pairs, have improved the matching of flashboard and valve body, and flashboard reaches exchange, helps producing in batches.
Valve body structure length meets the standard code structure length, can satisfy the connection request of standard pipe collimation method orchid.Simple in structure, removed the flashboard frame, eliminated owing to flashboard frame heavy corrosion, fracture, cause that left and right sides flashboard comes off, reduce the generation of dielectric leakage accident, alleviated the weight of valve, reduce many castings and manufacturing procedure, helped reducing cost, improved work efficiency and Economy.
Description of drawings
Fig. 1 is gate valve of the present utility model and sealed structure chart, and Fig. 2 a is the structural drawing of left flashboard (2), Fig. 2 b be the A-A of left flashboard (2) among Fig. 2 a to sectional view, Fig. 3 d is the structural drawing of right flashboard (3), Fig. 3 c is that the A-A of right flashboard (3) among Fig. 3 d is to sectional view.
Embodiment
As shown in Figure 1, valve seat (1) is installed on the valve body (5), the upper end of left side flashboard (2) is connected with valve rod (7), left side flashboard (2) is to be connected with embedded gear with right flashboard (3), plunger tip (4) is put into the pit of right flashboard (3), the recessed tooth of left side flashboard (2) embeds the double wedge of right flashboard (3), rotates an angle and makes the double wedge of left and right sides flashboard relative, and be connected to each other.Driving left flashboard (2), right flashboard (3) by the axial force of valve rod (7) descends in valve body (5), and be installed on and form a pair of sealing pair between valve seat (1) on the valve body (5), plunger tip (4) ball pivot is close on the sealing surface of valve seat (1) left and right sides flashboard sealing surface, realizes the sealing of valve by wedging power.
Valve rod (7) rises, and drives the sealing surface of left flashboard (2), right flashboard (3) disengaging valve seat (1), Open valve.Valve rod (7) coincide with upper seal support (8) in the enable possition, and sealing is convenient to change filler in the formation.Pretension bolt (15) produces the pretension sealing force between valve gap (16), wedge-type seal pad (9) and valve body (5).Do the time spent in interior pressure, valve gap (16) continues to move axially, and pretension bolt (15) begins unloading, and the interaction force between them increases with pressure, keeps excellent sealing.
Shown in Fig. 1, Fig. 2 a, Fig. 2 b, Fig. 3 c, Fig. 3 d, left side flashboard (2) is to be connected with embedded gear with right flashboard 3, when assembling, plunger tip (4) is put into the pit of right flashboard (3), the recessed tooth of left side flashboard (2) embeds the double wedge of right flashboard (3), rotating to an angle makes the double wedge of left and right sides flashboard relative, and is connected to each other, and squeezes into pin (6) again and fixes.
As shown in Figure 1, hold-down grid (17) compresses filler (19) by filler gland (18), makes valve rod (7) be in sealing state.Pretension bolt (15) produces the pretension sealing force by pressing plate (12), supporting ring (11), four cyclizations (10) between valve gap (16), wedge-type seal pad (9) and valve body (5).Do the time spent in interior pressure, valve gap (16) continues to move axially, and pretension bolt (15) begins unloading, and the interaction force between them increases with pressure, keeps excellent sealing.
Claims (2)
1, embedded double-flashboard gate valve flashboard bindiny mechanism, valve seat (1) is installed on the valve body (5), the upper end that it is characterized in that left flashboard (2) is connected with valve rod (7), left side flashboard (2) is to be connected with embedded gear with right flashboard (3), plunger tip (4) is put into the pit of right flashboard (3), the recessed tooth of left side flashboard (2) embeds the double wedge of right flashboard (3), rotates an angle and makes the double wedge of left and right sides flashboard relative, and be connected to each other.
2, embedded double-flashboard gate valve flashboard according to claim 1 bindiny mechanism is characterized in that left flashboard (2) and right flashboard (3) are fixing by pin (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520079167 CN2833278Y (en) | 2005-07-26 | 2005-07-26 | Disc connecting structure for embedded double disc gate valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520079167 CN2833278Y (en) | 2005-07-26 | 2005-07-26 | Disc connecting structure for embedded double disc gate valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2833278Y true CN2833278Y (en) | 2006-11-01 |
Family
ID=37197591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520079167 Expired - Fee Related CN2833278Y (en) | 2005-07-26 | 2005-07-26 | Disc connecting structure for embedded double disc gate valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2833278Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102889391A (en) * | 2012-10-16 | 2013-01-23 | 南通国电电站阀门有限公司 | Motor-driven high-pressure welding end pressure relief type double disc gate valve |
| CN103363140A (en) * | 2012-03-31 | 2013-10-23 | 布雷格菲尼克斯配件设备有限公司 | Gate valve for blocking a pipe |
| CN103867742A (en) * | 2014-04-03 | 2014-06-18 | 江苏苏盐阀门驱动装置有限公司 | K-shaped rolling and supporting double gate disc |
| CN103968098A (en) * | 2014-05-15 | 2014-08-06 | 章华 | Wedge type double-gate-disc gate valve |
| CN103968093A (en) * | 2014-04-22 | 2014-08-06 | 章华 | Propped open type parallel dual-gate valve with deflector hole |
| WO2020015318A1 (en) * | 2018-07-16 | 2020-01-23 | 苏州纽威阀门股份有限公司 | Gate valve |
-
2005
- 2005-07-26 CN CN 200520079167 patent/CN2833278Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103363140A (en) * | 2012-03-31 | 2013-10-23 | 布雷格菲尼克斯配件设备有限公司 | Gate valve for blocking a pipe |
| CN103363140B (en) * | 2012-03-31 | 2016-01-20 | 布雷格菲尼克斯配件设备有限公司 | For the gate valve of blocking pipe |
| CN102889391A (en) * | 2012-10-16 | 2013-01-23 | 南通国电电站阀门有限公司 | Motor-driven high-pressure welding end pressure relief type double disc gate valve |
| CN102889391B (en) * | 2012-10-16 | 2014-02-19 | 南通国电电站阀门有限公司 | Motor-driven high-pressure welding end pressure relief type double disc gate valve |
| CN103867742A (en) * | 2014-04-03 | 2014-06-18 | 江苏苏盐阀门驱动装置有限公司 | K-shaped rolling and supporting double gate disc |
| CN103867742B (en) * | 2014-04-03 | 2016-01-13 | 江苏苏盐阀门机械有限公司 | A kind of K type rolling bracing type double-flashboard |
| CN103968093A (en) * | 2014-04-22 | 2014-08-06 | 章华 | Propped open type parallel dual-gate valve with deflector hole |
| CN103968098A (en) * | 2014-05-15 | 2014-08-06 | 章华 | Wedge type double-gate-disc gate valve |
| WO2020015318A1 (en) * | 2018-07-16 | 2020-01-23 | 苏州纽威阀门股份有限公司 | Gate valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |