CN216306914U - Packing sealing structure of angle type stop valve - Google Patents
Packing sealing structure of angle type stop valve Download PDFInfo
- Publication number
- CN216306914U CN216306914U CN202122739537.8U CN202122739537U CN216306914U CN 216306914 U CN216306914 U CN 216306914U CN 202122739537 U CN202122739537 U CN 202122739537U CN 216306914 U CN216306914 U CN 216306914U
- Authority
- CN
- China
- Prior art keywords
- packing
- packings
- valve
- stop valve
- angle stop
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Details Of Valves (AREA)
Abstract
The utility model discloses a packing sealing structure of an angle stop valve, which comprises a valve cover, a packing box arranged in the valve cover and a valve rod arranged in the packing box, wherein a packing pad, a plurality of lower sealing packings, a spacer ring, a plurality of upper sealing packings and a packing pressing sleeve are sequentially arranged between the packing box and the valve rod along the axis of the valve rod, a packing pressing plate is arranged on one side of the packing pressing sleeve, which is opposite to the upper sealing packings, an extrusion assembly for driving the packing pressing sleeve to move towards the upper sealing packings is arranged on the packing pressing plate, and the lower sealing packings and the upper sealing packings are flexible graphite steel wire packing packings. The utility model has the following advantages and effects: the utility model can achieve better sealing effect, thereby prolonging the service life of the valve.
Description
Technical Field
The utility model relates to a valve, in particular to a packing sealing structure of an angle type stop valve.
Background
The valve is a control part in a fluid conveying system, has the functions of stopping, adjusting, guiding, preventing counter flow, stabilizing pressure, shunting or overflowing and relieving pressure and the like, and has quite various varieties and specifications. The valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like. The method is applied to the industries such as petrochemical industry, chemical industry, coal chemical industry, electric power and the like.
The angle stop valve opening and closing part is a plug-shaped valve clack, the sealing surface is a plane or a conical surface, and the valve clack moves linearly along the center line of fluid. The motion form of the valve rod is a lifting rod type and a lifting rotating rod type. Be equipped with packing assembly on the angle type stop valve and prevent that the valve from taking place to leak, but present packing assembly mostly constitutes through the stack of multilayer sealing packing, and superimposed multilayer sealing packing leads to its support nature relatively poor because its material property and its design mounting structure in addition, when the material takes place to be tired for packing assembly's sealed effect can greatly reduced, and then takes place to leak, finally influences the life of valve.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a packing structure of an angle stop valve, which can achieve a better sealing effect so as to prolong the service life of the valve.
The technical purpose of the utility model is realized by the following technical scheme: the utility model provides a packing structure of angle stop valve, includes the valve gap, sets up the stuffing box in the valve gap and sets up the valve rod in the stuffing box, the axis along the valve rod has set gradually the packing pad, a plurality of lower seal packing, spacer ring, a plurality of upper seal packing and packing pressure cover between stuffing box and the valve rod, is located one side of packing pressure cover dorsad upper seal packing is equipped with the packing clamp plate, be equipped with the extrusion subassembly of drive packing pressure cover towards the motion of upper seal packing on the packing clamp plate, lower seal packing and upper seal packing are flexible graphite packing steel wire packing.
Through adopting above-mentioned technical scheme, the packing pad, cooperation between spacer ring and the packing pressure cover three supports last sealing filler and lower sealing filler and makes its ability fully deform, have good thermal stability at cooperation flexible graphite steel wire packing filler itself, self-lubrication, chemical stability, pliability is good, the coefficient of resilience is high, wait good performance, under guaranteeing that it carries out deformation seal's prerequisite, come the support nature to it through the elastic property that its self possessed, prevent that long-time extrusion atress and the material from collapsing, thereby guarantee the inseparable seal between sealing filler and the part, reach better sealed effect and sealed effect more reliable with this, the life of valve has been prolonged.
Further setting the following steps: the extrusion subassembly is including the connecting rod of connecting the valve gap and set up in the retaining member of connecting rod, the clamp plate that packs is followed valve rod axis and connecting rod sliding fit, the retaining member offsets in the clamp plate that packs.
Through adopting above-mentioned technical scheme, the retaining member drives the packing at the in-process of locking and presses the cover to move towards last sealing filler, extrudees last sealing filler and lower sealing filler, makes it realize inseparabler support tightly sealed to this promotes sealed reliability.
Further setting the following steps: and an elastic abutting part is arranged between the locking part and the packing pressing plate.
Through adopting above-mentioned technical scheme, the retaining member supports tight part through elasticity and carries out the application of force to the packing clamp plate, supports tight part sustainability through elasticity and provides sealing force for packing, and sealed effect is more lasting, stable.
Further setting the following steps: the locking piece is a locking nut in threaded connection with the connecting rod.
Through adopting above-mentioned technical scheme, lock nut and connecting rod threaded connection drive the clamp plate that packs with this and realize the locking purpose.
Further setting the following steps: the elastic abutting part comprises two disc springs, and the two disc springs are symmetrically arranged.
By adopting the technical scheme, the disc spring is low in cost and stable in performance.
Further setting the following steps: the valve rod is sleeved with the packing pressing plate in a sliding mode, a first pair of middle inclined planes which are gradually arranged in a flaring mode towards the packing pressing sleeve are arranged on one face, facing the packing pressing sleeve, of the packing pressing plate, and a second pair of middle inclined planes which are matched with the first pair of middle inclined planes are arranged on the packing pressing sleeve.
Through adopting above-mentioned technical scheme, the clamp plate that packs when the cover motion is pressed in the drive packing, through the cooperation between first centering inclined plane and the second centering inclined plane between the two realize that this centering between the two is spacing, can not form the yawing force when making the clamp plate drive pack to press the cover to move to make the cover that packs press can apply even extrusion force to packing, make the packing carry out even deformation, in order to reach better sealed effect, promote sealed reliability.
Further setting the following steps: the number of the lower sealing filler and the number of the upper sealing filler are four.
Through adopting above-mentioned technical scheme, this quantity makes to have sufficient elasticity ability to support on the filler possesses the basis of sufficient deformation performance concurrently, and balanced two kinds of performances to reach the best sealed effect.
In conclusion, the utility model has the following beneficial effects: the utility model can achieve better sealing effect, thereby prolonging the service life of the valve.
Drawings
FIG. 1 is a sectional view of the embodiment;
fig. 2 is an enlarged view of a portion B in fig. 1.
In the figure: 01. a valve cover; 02. a stuffing box; 03. a valve stem; 04. a filler pad; 05. a lower seal packing; 06. a spacer ring; 07. upper sealing filler; 08. pressing and sleeving the filler; 09. a packing press plate; 010. a connecting rod; 011. locking the nut; 012. a disc spring; 013. a first pair of medial bevels; 014. a second pair of intermediate bevels.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, a packing structure of an angle stop valve comprises a valve cover 01, a packing box 02 arranged in the valve cover 01 and a valve rod 03 arranged in the packing box 02, wherein a packing pad 04, a plurality of lower packing packings 05, a spacer ring 06, a plurality of upper packing packings 07 and a packing pressing sleeve 08 are sequentially arranged between the packing box 02 and the valve rod 03 along the axis of the valve rod 03 from bottom to top, the number of the lower packing packings 05 and the number of the upper packing packings 07 are four, and the lower packing packings 05 and the upper packing packings 07 are flexible graphite steel wire packing packings. And a packing pressing plate 09 is arranged above the packing pressing sleeve 08, and an extrusion assembly for driving the packing pressing sleeve 08 to move downwards is arranged on the packing pressing plate 09.
The packing pressing plate 09 is slidably sleeved on the valve rod 03, a first pair of middle inclined surfaces 013 gradually flaring towards the packing pressing sleeve 08 is arranged on one surface of the packing pressing plate 09 towards the packing pressing sleeve 08, and a second pair of middle inclined surfaces 014 matched with the first pair of middle inclined surfaces 013 are arranged on the packing pressing sleeve 08. The extrusion subassembly includes the connecting rod 010 with valve gap 01 threaded connection and sets up in the retaining member of connecting rod 010, the retaining member be with connecting rod 010 threaded connection's lock nut 011. Packing clamp plate 09 is along valve rod 03 axis and connecting rod 010 sliding fit, is equipped with elasticity between retaining member and the packing clamp plate 09 and supports tight part, and elasticity supports tight part and is two dish springs 012, and the symmetry sets up between two dish springs 012.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (7)
1. The utility model provides a packing structure of angle stop valve, includes valve gap (01), sets up stuffing box (02) in valve gap (01) and sets up valve rod (03) in stuffing box (02), its characterized in that: the packing box is characterized in that a packing pad (04), a plurality of lower sealing packings (05), a spacer ring (06), a plurality of upper sealing packings (07) and a packing pressing sleeve (08) are sequentially arranged between the packing box (02) and the valve rod (03) along the axis of the valve rod (03), a packing pressing plate (09) is arranged on one side, back to the upper sealing packings (07), of the packing pressing sleeve (08), an extrusion assembly for driving the packing pressing sleeve (08) to move towards the upper sealing packings (07) is arranged on the packing pressing plate (09), and the lower sealing packings (05) and the upper sealing packings (07) are flexible graphite steel wire packing packings.
2. The packing structure of an angle stop valve according to claim 1, characterized in that: the extrusion subassembly is including connecting rod (010) of connecting valve gap (01) and set up in the retaining member of connecting rod (010), packing clamp plate (09) are along valve rod (03) axis and connecting rod (010) sliding fit, the retaining member supports in packing clamp plate (09) mutually.
3. The packing structure of an angle stop valve according to claim 2, characterized in that: and an elastic abutting part is arranged between the locking piece and the packing pressing plate (09).
4. The packing structure of an angle stop valve according to claim 2, characterized in that: the retaining member is a locking nut (011) in threaded connection with the connecting rod (010).
5. The packing structure of an angle stop valve according to claim 3, characterized in that: the elastic abutting part comprises two disc springs (012), and the two disc springs (012) are symmetrically arranged.
6. The packing structure of an angle stop valve according to claim 2, characterized in that: valve rod (03) are located to packing clamp plate (09) slip cover, packing clamp plate (09) are equipped with towards packing press cover (08) one side be the first pair of well inclined plane (013) that the flaring set up gradually towards packing press cover (08), be equipped with on packing press cover (08) with first pair of well inclined plane (013) looks adaptation second pair well inclined plane (014).
7. The packing structure of an angle stop valve according to claim 1, characterized in that: the number of the lower sealing filler (05) and the number of the upper sealing filler (07) are four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122739537.8U CN216306914U (en) | 2021-11-10 | 2021-11-10 | Packing sealing structure of angle type stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122739537.8U CN216306914U (en) | 2021-11-10 | 2021-11-10 | Packing sealing structure of angle type stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216306914U true CN216306914U (en) | 2022-04-15 |
Family
ID=81120763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122739537.8U Active CN216306914U (en) | 2021-11-10 | 2021-11-10 | Packing sealing structure of angle type stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216306914U (en) |
-
2021
- 2021-11-10 CN CN202122739537.8U patent/CN216306914U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101490452B (en) | Seal | |
| CN201487284U (en) | Novel fireproof ball valve | |
| CN216306914U (en) | Packing sealing structure of angle type stop valve | |
| CN210106654U (en) | Ball valve | |
| CN216306751U (en) | Hydrogen-resistant steel angle type stop valve | |
| CN201420869Y (en) | Pneumatic rotating disc valve | |
| CN201487257U (en) | Valve body and plug sealing structure of plunger type high-pressure adjusting valve | |
| CN201582409U (en) | Spherical sealing butterfly valve provided with valve plate coated with rubber layer | |
| CN104676012A (en) | Bilateral balanced sealing ring component for sleeve valve | |
| CN109555898B (en) | Valve gate | |
| CN116480787A (en) | Four eccentric butterfly valve | |
| CN109595387B (en) | Valve packing seal structure | |
| KR20060134983A (en) | Torque-limiter-equipped handle and fluid controller having the handle | |
| CN101956539A (en) | Follow-up centering sealing device of pumping well head | |
| CN209781700U (en) | Multi-spring cooperative compression type efficient sealing butterfly valve | |
| CN203627832U (en) | Double-base sealed cage type regulating valve with elastic C-shaped ring | |
| CN202158209U (en) | Floating-seat two-way hard sealed butterfly valve | |
| CN207178695U (en) | A kind of Double End spring mechanical sealing device | |
| CN216201087U (en) | Low-loss regulating valve packing structure | |
| CN214789379U (en) | Sealing stuffing box with multiple sealing structures | |
| CN211649047U (en) | Dustproof gasket subassembly | |
| CN207864668U (en) | A kind of compound seal formula sleeve adjusting valve | |
| CN212297612U (en) | Sealed cage type high-precision regulating valve | |
| CN218761420U (en) | EVA high pressure control valve | |
| CN213393655U (en) | Novel soft and hard sealing ball valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |