CN208719385U - A kind of double containment poppet - Google Patents
A kind of double containment poppet Download PDFInfo
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- CN208719385U CN208719385U CN201821106855.2U CN201821106855U CN208719385U CN 208719385 U CN208719385 U CN 208719385U CN 201821106855 U CN201821106855 U CN 201821106855U CN 208719385 U CN208719385 U CN 208719385U
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- valve
- spring
- valve deck
- seal kit
- seat
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Abstract
The utility model provides a kind of double containment poppet, including the valve body of Seal Kit is arranged, valve deck external member, the promotion driving assembly being connect by guide rod with valve deck external member, setting guide rod seat, valve deck external member on valve body axial line include the first spring stack being successively fixedly linked from top to bottom, the first valve deck, second spring column and the second valve deck；Seal Kit includes bilevel first Seal Kit and the second Seal Kit；First valve deck and the second valve deck are made of the valve plate of circular plate shape, the cover board being fixed on valve plate close to outer position；First Seal Kit is made of with the second Seal Kit the valve seat from the inside to the outside of concentric circle permutation, spring seat, fixed column, and multipair helical spring is arranged at the top of spring seat, sealing ring is arranged at the top of fixed column.The elastic sealing layer that the utility model setting is made of the double-deck valve deck external member and corresponding Seal Kit, and each layer of elastic sealing layer includes major-minor two seals part, and double-layer safety improves leakproofness.
Description
Technical field
The utility model belongs to valve technology field, and in particular to a kind of double containment poppet.
Background technique
Poppet realizes either on or off using the pressure of compressed air, is the common auxiliary equipment of dust pelletizing system, is promoted
The sealing requirements of valve are relatively high, and otherwise ash-laden gas is easy leakage to pollute environment, and conventional mode is on valve seat at present
One of sealing element is set, but it is closed still not enough tightly.To solve the above-mentioned problems, patent CN205350368U discloses one
Kind Double-layer elastic sealing lift valve, above scheme structure setting have two layers of valve plate and two layers of valve seat construction, and on two layers of valve plate
It is respectively provided with holddown spring, while making the distance between valve plate slightly larger than the distance between valve seat, by the pressure of lifting driving device
The pressing force of clamp force and upper pressing spring, lower pressing spring device is in close contact the double-deck valve plate and valve base sealing item, reaches sealing effect
Fruit.But above scheme, in use, assembling, disassembly and maintenance process, the variation and metal heat-expansion due to high temperature and pressure are cold
The modification of contracting so that being easy to loosen between valve plate and valve seat, and then causes the leakproofness between valve plate and valve seat gradually to weaken, because
After this is used for a long time, sealing performance will be will be greatly reduced, and valve body is possible to generate leakage,.
Utility model content
Aiming at the shortcomings in the prior art with problem, the utility model is intended to provide a kind of double containment that sealing performance is strong and mentions
Lift valve.
The utility model is achieved by the following technical programs:
A kind of double containment poppet, including the valve body of Seal Kit is arranged, valve deck external member, passes through with the valve deck external member and leads
Promotion driving assembly, setting guide rod seat on the valve body axial line to bar connection, institute is run through in the guide rod seat lower end
State valve body, upper end is connected with the valve deck external member, the guide rod lower end connects the valve deck external member, upper end connects the promotion
Driving assembly, wherein the valve deck external member includes the first spring stack, the first valve deck, the second bullet being successively fixedly linked from top to bottom
Spring column and the second valve deck；The Seal Kit includes bilevel first Seal Kit and the second Seal Kit；First bullet
Spring column and second spring column are under nature is non-stretching or non-compressed state, between first valve deck, the second bonnet central
Vertical range is greater than the vertical range between the first Seal Kit, the second Seal Kit center；First valve deck and the second valve
Lid by the valve plate of circular plate shape, be fixed on the valve plate and constituted close to the cover board of outer position, first valve deck and the
Two valve decks are an integral structure；First Seal Kit and the second Seal Kit by concentric circle permutation from the inside to the outside
Valve seat, spring seat, fixed column constitute, the valve seat, spring seat, fixed column vertical height be gradually be incremented by, the bullet
Multipair helical spring is set at the top of spring pedestal, sealing ring is set at the top of the fixed column.
Further, the cover board is made of the annulus of the cylinder of lower end and upper end, and the cover board is an integral structure, institute
The bottom for stating cover board cylinder is fixed on the valve plate, and the annulus of the cover board is fixed on the cylinder top and extends outwardly；
The outer diameter of the cover board annulus is greater than the outer diameter of spring seat, and the cover board annulus is corresponding with the sealing ring mating, the valve
Plate is corresponding with the valve seat mating.
Further, the promotion driving assembly, guide rod, guide rod seat, the first spring stack, the first valve deck, the second bullet
Spring column, the second valve deck, the first Seal Kit, the second Seal Kit axial line on the same axis.
Further, each pair of helical spring is symmetrical centered on the spring seat axial line, the helical spring
Bottom end is fixed at the top of the spring seat, connecting plate is arranged in top.
Further, the vertical height phase of the valve seat and fixed column difference in height between the two and the cover board cylinder
Deng；When helical spring is under nature is non-stretching or non-compressed state, the total height of the fixed column and sealing ring is less than described
Spring seat, helical spring, connecting plate three total height, the vertical height of the cover board cylinder is less than the vertical of helical spring
Highly.
The working principle of the utility model are as follows: in during the work time, promote driving assembly and connect guide rod, pass through guiding
Pole socket pushes valve deck external member to valve body, since the vertical range between the first valve deck, the second valve deck is greater than the first sealing shroud
Vertical range between part, the second Seal Kit, the second valve deck contact compression with the second Seal Kit first, in second spring column
It further compresses, so that between the vertical range and the first Seal Kit, the second Seal Kit between the first valve deck, the second valve deck
It is equal when, the first valve deck contacts compression with the first Seal Kit, then further compresses in the first spring stack, passes through the first bullet
The double action of spring column and second spring column so that the first valve deck, the second valve deck respectively with the first Seal Kit, the second sealing shroud
Part fits closely sealing.In the seal process of first valve deck and the first Seal Kit, the second valve deck and the second Seal Kit, due to
Fixed column and the total height of sealing ring be less than spring seat, helical spring, connecting plate three total height, and cover board cylinder hangs down
Straight height is less than the vertical height of helical spring, so during valve deck pushes, the cover board first contact with connecting plate, and to spiral
Spring is pushed, and as the amount of compression increases for helical spring, valve plate and valve seat are in close contact, due to both valve seat and fixed column it
Between difference in height it is equal with the vertical height of cover board cylinder, so the annulus and sealing ring of cover board are tight after valve plate and valve base sealing
Contiguity touching.Double-layer seal is formed under connection by valve plate and valve seat, cover board and sealing ring Dual-contack and helical spring.
Compared with prior art, the utility model beneficial effect includes:
(1) elastic packing being made of the double-deck valve deck external member and corresponding double-layer seal external member is arranged in the utility model
Layer, makes two groups of sealants fit closely sealing under the squeezing action of two groups of spring stacks, greatly reduces its divulging a secret property.
(2) each layer of elastic sealing layer of the utility model includes major-minor two seals part, and valve plate and the mating formation of valve seat are led
It seals, the annulus and the mating formation secondary sealing of sealing ring of cover board, helical spring is set between major-minor two seals part, in its pressure
Under, further improve leakproofness.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the schematic perspective view under the utility model valve deck and valve seat separated position.
Fig. 3 is the structural schematic diagram under the utility model valve deck and valve seat separated position.
Fig. 4 is the structural schematic diagram under the utility model valve deck and valve base sealing state.
It illustrates: 1- promotion driving assembly, 2- guide rod, 3- guide rod seat, 4- valve deck external member, the first spring stack of 41-,
The first valve deck of 42-, 43- second spring column, the second valve deck of 44-, 401- valve plate, 402- cover board, 5- Seal Kit, 51- first are close
Jacket member, the second Seal Kit of 52-, 501- valve seat, 502- spring seat, 503- fixed column, 504- connecting plate, 505- spiral bullet
Spring, 506- sealing ring, 6- valve body.
In the description of the present invention, term " center ", "upper", "lower", "left", "right", "top", "bottom", " vertical ",
The orientation or positional relationship of the instructions such as "horizontal", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of
Describe the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " first ", " the
Two " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, being detachably connected, being integrally connected；It can be with
It is mechanical connection, electrical connection；Can be directly connected, intermediary is indirectly connected, can be the connection inside two elements.It is right
The concrete meaning of above-mentioned term in the present invention can be understood with concrete condition for those skilled in the art.
Specific embodiment
With reference to the accompanying drawing, the utility model is further described.
As shown in Figure 1, a kind of double containment poppet, including be arranged the valve body 6 of Seal Kit 5, valve deck external member 4, with it is described
Valve deck external member 4 passes through promotion driving assembly 1, the setting guide rod seat 3 on 6 axial line of valve body that guide rod 2 connects, described
3 lower end of guide rod seat is connected through the valve body 6, upper end with the valve deck external member 4, and 2 lower end of guide rod connects the valve
Lid external member 4, upper end connect the promotion driving assembly 1, and the valve deck external member 4 includes first to be successively fixedly linked from top to bottom
Spring stack 41, the first valve deck 42, second spring column 43 and the second valve deck 44, the Seal Kit 5 include bilevel the
One Seal Kit 51 and the second Seal Kit 52, first valve deck 42 and the mating formation upper layer of first Seal Kit 51 are close
Envelope, second valve deck 44 are sealed with the mating formation lower layer of second Seal Kit 52.When the first spring stack 41 and the second bullet
Spring column 43 is under nature is non-stretching or non-compressed state, between first valve deck 42,44 center of the second valve deck it is vertical away from
From the vertical range being greater than between the first Seal Kit 51,52 center of the second Seal Kit.In order to guarantee the positioning of poppet with
Steering capability simultaneously in order to keep the balance of poppet seal performance, the promotion driving assembly 1, guide rod 2, guide rod seat 3,
First spring stack 41, the first valve deck 42, second spring column 43, the second valve deck 44, the first Seal Kit 51, the second Seal Kit 52
Axial line on the same axis.First valve deck 42 is identical as the composition construction of the second valve deck 44, and size can be identical
Can be different, under preferable case, the size of first valve deck 42 is greater than the second valve deck 44；First Seal Kit 51 and second
The composition construction of Seal Kit 52 is identical, and size may be the same or different, under preferable case, the ruler of first Seal Kit 51
It is very little to be greater than the second Seal Kit 52.
It in specifically used, promote driving assembly 1 and connects guide rod 2, push valve deck external member 4 to valve by guide rod seat 3
Body 6 moves, since the vertical range between the first valve deck 42, the second valve deck 44 is greater than the first Seal Kit 51, the second sealing shroud
Vertical range between part 52, the second valve deck 44 contacts compression with the second Seal Kit 52 first, in second spring column 43 into one
Step compression, so that vertical range and the first Seal Kit 51, the second Seal Kit 52 between the first valve deck 42, the second valve deck 44
Between it is equal when, the first valve deck 42 contacts compression with the first Seal Kit 51, then in the further compression of the first spring stack 41,
By the double action of the first spring stack 41 and second spring column 43, so that the first valve deck 42, the second valve deck 44 are respectively with first
Seal Kit 51, the second Seal Kit 52 fit closely sealing.
As in Figure 2-4, first valve deck 42 and the second valve deck 44 by circular plate shape valve plate 401, be fixed on institute
It states the cover board 402 on valve plate 401 close to outer position to constitute, first valve deck 42 and the second valve deck 44 are integral type knot
Structure；The cover board 402 is made of the annulus of the cylinder of lower end and upper end, and the cover board 402 is an integral structure, the cover board
The bottom of 402 cylinders is fixed on the valve plate 401, and the annulus of the cover board 402 is fixed on the top of the cylinder cover board 402
And extend outwardly.First Seal Kit 51 is with the second Seal Kit 52 by the valve seat from the inside to the outside of concentric circle permutation
501, spring seat 502, fixed column 503 are constituted；The valve seat 501, spring seat 502, fixed column 503 vertical height be by
Gradually it is incremented by；Multipair helical spring 505 is set at the top of the spring seat 502, and each pair of helical spring 505 is with the spring base
Symmetrical centered on 502 axial lines of seat, 505 bottom end of helical spring is fixed on 502 top of spring seat, top setting connects
Fishplate bar 504；Sealing ring 506 is set at the top of the fixed column 503.The outer diameter of 402 annulus of cover board is greater than spring seat 502
Outer diameter is simultaneously corresponding with the sealing ring 506, and the size of the valve plate 401 is corresponding with the valve seat 501；The valve seat 501 with it is solid
The difference in height between the two of fixed column 503 is equal with the vertical height of 402 cylinder of cover board；When helical spring 505 is in nature
Under non-stretching or non-compressed state, the fixed column 503, the total height of sealing ring 506 are less than the spring seat 502, spiral
Spring 505,504 three of connecting plate total height, the vertical height of 402 cylinder of cover board is less than the vertical of helical spring 505
Highly.In specific implementation, the valve plate 401 and the mating formation primary seal of the valve seat 501, the annulus of the cover board 402 with
The mating formation secondary sealing of the sealing ring 506.
It is total due to fixed column 503 and sealing ring 506 in the seal process of valve deck and Seal Kit in specifically used
Height be less than spring seat 502, helical spring 505,504 three of connecting plate total height, and the vertical height of 402 cylinder of cover board
Less than the vertical height of helical spring 505, so during valve deck pushes, cover board 402 is and right first with the contact of connecting plate 504
Helical spring 505 is pushed, and as the amount of compression increases for helical spring 505, valve plate 401 and valve seat 501 are in close contact, due to valve
Seat 501 is equal with the vertical height of 402 cylinder of cover board with the difference in height between the two of fixed column 503, so valve plate 401 and valve seat
After 501 sealings, the annulus and sealing ring 506 of cover board 402 are in close contact.Pass through valve plate 401 and valve seat 501, cover board 402 and sealing
It encloses under the connection of 506 Dual-contacks and helical spring 505 and forms double-layer seal.First valve deck 42 and the first Seal Kit 51,
The sealing of second valve deck 44 and the second Seal Kit 52 is the above process.
The above only expresses preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not
Therefore it can be interpreted as that a limitation on the scope of the patent of the present invention.It should be pointed out that for the ordinary skill people of this field
For member, without departing from the concept of the premise utility, several deformations can also be made, improves and substitutes, these all belong to
In the protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (6)
1. a kind of double containment poppet, valve body (6), valve deck external member (4) and the valve deck set including Seal Kit (5) are arranged
Part (4) passes through promotion driving assembly (1), the setting guide rod seat (3) on the valve body (6) axial line that guide rod (2) connect,
It is characterized by: the valve deck external member (4) includes the first spring stack (41), the first valve deck being successively fixedly linked from top to bottom
(42), second spring column (43) and the second valve deck (44)；The Seal Kit (5) includes bilevel first Seal Kit
(51) and the second Seal Kit (52)；First spring stack (41) and second spring column (43) are in that nature is non-stretching or uncompressed shape
Under state, the vertical range between first valve deck (42), the second valve deck (44) center is greater than the first Seal Kit (51), second
Vertical range between Seal Kit (52) center；First valve deck (42) is with the second valve deck (44) by the valve of circular plate shape
Plate (401), the cover board (402) being fixed on the valve plate (401) close to outer position are constituted, first valve deck (42) and the
Two valve decks (44) are an integral structure；First Seal Kit (51) is with the second Seal Kit (52) by concentric circle permutation
Valve seat (501) from the inside to the outside, spring seat (502), fixed column (503) constitute, the valve seat (501), spring seat
(502), the vertical height of fixed column (503) is gradually to be incremented by, and multipair helical spring is arranged at the top of the spring seat (502)
(505), sealing ring (506) are set at the top of the fixed column (503).
2. a kind of double containment poppet according to claim 1, it is characterised in that: the cover board (402) by lower end circle
Cylinder and the annulus of upper end are constituted, and the cover board (402) is an integral structure, and the bottom of cover board (402) cylinder is fixed on institute
It states on valve plate (401), the annulus of the cover board (402) is fixed on the cylinder top and extends outwardly.
3. a kind of double containment poppet according to claim 2, it is characterised in that: the outer diameter of cover board (402) annulus
Greater than the outer diameter of spring seat (502), cover board (402) annulus is corresponding with the sealing ring (506) mating, the valve plate
(401) corresponding with the valve seat (501) mating.
4. a kind of double containment poppet according to claim 3, it is characterised in that: each pair of helical spring (505) with
Symmetrical centered on spring seat (502) axial line, helical spring (505) bottom end is fixed on the spring seat
(502) top, top setting connecting plate (504).
5. a kind of double containment poppet according to claim 4, it is characterised in that: the valve seat (501) and fixed column
(503) difference in height between the two is equal with the vertical height of the cover board (402) cylinder；When helical spring (505) are in certainly
Under right non-stretching or non-compressed state, the total height of the fixed column (503) and sealing ring (506) is less than the spring seat
(502), helical spring (505), connecting plate (504) three total height, the vertical height of cover board (402) cylinder is less than spiral shell
Revolve the vertical height of spring (505).
6. according to claim 1 to a kind of double containment poppet described in 5 any one, it is characterised in that: the promotion driving
Component (1), guide rod (2), guide rod seat (3), the first spring stack (41), the first valve deck (42), second spring column (43), second
Valve deck (44), the first Seal Kit (51), the second Seal Kit (52) axial line on the same axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821106855.2U CN208719385U (en) | 2018-07-12 | 2018-07-12 | A kind of double containment poppet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821106855.2U CN208719385U (en) | 2018-07-12 | 2018-07-12 | A kind of double containment poppet |
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| Publication Number | Publication Date |
|---|---|
| CN208719385U true CN208719385U (en) | 2019-04-09 |
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ID=65973358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821106855.2U Active CN208719385U (en) | 2018-07-12 | 2018-07-12 | A kind of double containment poppet |
Country Status (1)
| Country | Link |
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| CN (1) | CN208719385U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112610708A (en) * | 2020-12-09 | 2021-04-06 | 浙江大学 | Double-seat type regulating valve and sealing structure and method thereof |
-
2018
- 2018-07-12 CN CN201821106855.2U patent/CN208719385U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112610708A (en) * | 2020-12-09 | 2021-04-06 | 浙江大学 | Double-seat type regulating valve and sealing structure and method thereof |
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