CN208885982U - A kind of sealing ring and ductile iron pipe pressure testing sealing frock - Google Patents
A kind of sealing ring and ductile iron pipe pressure testing sealing frock Download PDFInfo
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- CN208885982U CN208885982U CN201821176331.0U CN201821176331U CN208885982U CN 208885982 U CN208885982 U CN 208885982U CN 201821176331 U CN201821176331 U CN 201821176331U CN 208885982 U CN208885982 U CN 208885982U
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- ring plate
- sealing ring
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Abstract
The utility model belongs to sealing element and its sealing frock technical field, concretely discloses a kind of sealing ring and its ductile iron pipe pressure testing sealing frock.It constitutes the main technical schemes of the sealing element: being formed interior ring plate and outer ring plate, lip is outer ring plate radially towards inner, section constitutes in ring made of axially vertical and symmetrical " ㄥ " shape with its or the rubber-plastics material for " < > ".And above-mentioned sealing element is fixed in the tool assembly for being provided with o-ring groove.The ductile iron pipe pressure testing sealing frock that the sealing ring and its matching are provided with the sealing ring has the characteristics that sealing effect is good, is easy dismounting and long service life.
Description
Technical field
The utility model belongs to sealing frock technical field, is concretely related to a kind of ductile iron pipe quality testing and is used
Sealing ring and its be provided with the ductile iron pipe pressure testing sealing frock of the sealing ring.
Background technique
Ductile iron pipe has essence, the performance of steel of iron, is mainly used for the mesolows such as municipal administration, industrial and mining enterprises' water supply, gas transmission
Pipe network has the characteristics that safe and reliable to operation, breakage rate is low, working drawing review is convenient, fast and antiseptic property is excellent.Ductile iron pipe
Quality and mechanical properties in production process to guarantee tube body, it is necessary to carry out the water pressure test by root by defined pressure.Examination at present
Press operation as shown in Figure 1, the female end 11 and socket end 12 for being the tube body 1 that will be fixed on pressure testing machine with being mounted on tool assembly 2
Rubber seal or sealed nylon circle 3 in groove 22 hold out against to form tube body sealing, then the water-filling by being set in tool assembly 2
Mechanism 21 fetches water pressure testing inspection in tube body, to check tube body with the presence or absence of leakage phenomenon.During pressure testing, it is set to tooling
Body middle section is the biggish axial interpolated pressure of 3 palpus receiving of sealing ring of rectangle to guarantee sealing effect, therefore after a number of uses
The sealing ring that will lead to tube body end especially socket end sheared, tear failure, and influences its service life.In spite of factory
Family's sealing ring 3 used in small-bore tube socket is made of the nylon material for having anti-shear performance excellent, but because of its bullet
Property is poor, and bigger tube body axial direction pressure is needed to guarantee to seal；It is more to will lead to hydraulic system receiving load height, failure,
And to the required precision of cast tube socket end face height, and fill up the old sealing ring of tooling slot replacement, dismounting it is time-consuming and laborious.
Utility model content
The purpose of this utility model is just to provide that one kind can sealing effect be good, long service life and detachable mounted are close
Seal and ductile iron pipe pressure testing sealing frock.
To achieve the above object, technical solution provided by the utility model are as follows:
A kind of sealing ring is formed interior ring plate and outer ring plate, lip is constituted radially towards ring made of inner rubber-plastics material.
Constitute the additional technical feature of above-mentioned sealing ring further include:
--- it is in axially vertical and symmetrical " ㄥ " shape with its that the radial section for constituting the ring, which is the outer ring plate,；
--- the radial section for constituting the ring is " < > " shape；
--- it is equal with the thickness of outer engaging portions of integral structure to constitute the thickness of ring plate and outer ring plate in the ring；
--- the width for constituting the interior ring plate of the lip is less than the width of the outer ring plate；
--- constitute the enhancement layer ring that tissue layer formation is provided in the interior ring plate and outer ring plate of the ring；
--- constitute the elastic layer ring that setting elasticity layer is formed in the interior ring plate and outer ring plate of the ring；
--- the corresponding medial surface of inside and outside ring plate for constituting the ring lip is the channel form for being capable of forming water gap
Or pitted skin shape；
--- constitute oblique outside the lip of the outer ring plate lateral surface of the ring, formation spill grooved ring.
A kind of ductile iron pipe pressure testing sealing frock, by being provided with the tool assembly of o-ring groove and being capable of fixing in therein
Sealing ring is constituted；The sealing ring formed by interior ring plate and outer ring plate, lip radially towards inner, the described outer ring plate is in and its axial direction
Vertical and symmetrical section is " ㄥ " shape or section is the composition of ring made of the rubber-plastics material of " < > " shape, wherein described
The width of outer ring plate and the slot bottom width of the o-ring groove match.
Constitute a kind of additional technical feature of above-mentioned ductile iron pipe pressure testing sealing frock further include:
--- it constitutes and is provided with the sealing ring fixing groove in the inner circle, outer circle or inside and outside round wall of the o-ring groove；
--- the sealing ring fixing mechanism is provided on the lateral wall in the o-ring groove；
--- tapered ring in the shape of a trumpet is set in the cylindrical wall of the o-ring groove；
--- the inner ring piece end for constituting the sealing ring is arranged oblique ring, the oblique ring can in the o-ring groove
Side wall forms gap and constitutes water inlet ring.
Sealing ring and its ductile iron pipe pressure testing sealing frock provided by the utility model compared with prior art, have with
Lower advantage: first, since the ring section for constituting sealing ring is that opening is radial inwardly, symmetrically " ㄥ " type or " < > " type rubber
Ring made of moulding material is constituted, so that being become from original slotting means of press seals when means of press seals between tube body and sealing ring: will when operation
Sealing ring top on tube body and both ends tooling is flat；Water pressure does not influence sealing effect, thus there is sealing ring to use the longevity
The advantages that life is long, sealing effect is good, hydraulic system load is light, easy to operate；Second, due to the interior ring plate and outer ring that constitute ring
It is provided with the enhancement layer ring of tissue layer formation in piece, the service life of sealing ring can be extended；Third, due to being arranged in tool assembly
Sealing ring is formed by interior ring plate and outer ring plate in o-ring groove, lip radially towards inner, section is symmetrical " ㄥ " type or " <
Structure made of type rubber-plastics material is made in > " type rubber-plastics material, has the characteristics that convenient for disassembly and assembly.
Detailed description of the invention
Fig. 1 is the using state structure diagram of the prior art；
Fig. 2 is the radial section structural schematic diagram of sealing ring provided by the utility model；
Fig. 3 is the radial section structural schematic diagram of second of sealing ring provided by the utility model；
Fig. 4 is the radial section structural schematic diagram of ductile iron pipe pressure testing sealing frock provided by the utility model；
Fig. 5 is the use state radial section structural schematic diagram of Fig. 4 pressure testing sealing frock；
Fig. 6 is second of structural schematic diagram for constituting ductile iron pipe pressure testing sealing frock body radial section.
Specific embodiment
The structure to the utility model sealing ring and its ductile iron pipe pressure testing sealing frock and use are former with reference to the accompanying drawing
Reason is described in further details.
As shown in Fig. 2, the tooling sealing ring provided by the utility model used for the quality testing of ductile iron pipe tube body
Structural schematic diagram.The structure for constituting the sealing ring is held, in socket made of rubber-plastics material for withstanding ductile iron pipe tube body
Ring plate 31, outer ring plate 32 and its outer ring portion (i.e. the interior ring plate of annular ring and the outer engaging portions of outer ring plate) 34 be combined as a whole,
Inner ring portion forms lip 4 radially towards innner and outer ring plate 32 in the ring structure for its axis F to vertical and symmetrical cross sectional shape being " ㄥ "
At.
When use (as shown in Figure 4,5), the sealing ring 3 that structure is the ring composition that symmetrical cross sectional shape is " ㄥ " is divided
It Zhi Ru not hold, in the o-ring groove 22 in socket end tool assembly 2, so that the holding of tube body, socket 11,12 is respectively against sealing ring
3；Then pressurization, 4 structure of lip that water can enter interior ring plate 31 and outer ring plate 32 is formed are filled the water into tube body 1 by water-filling mechanism 21
At sealing ring annular groove in, filling high pressure water after hydraulic pressure can make interior ring plate 31 expand inwards and the bellmouth 11 that constitutes tube body and slotting
Mouth 12 compresses, and hydraulic pressure more high compression sealing performance between the two is better, i.e., becomes the structure from the slotting means of press seals of the prior art
To means of press seals, the water pressure test detection of tube body can be thus achieved.
In the structure for constituting above-mentioned sealing ring:
--- due in the detection process, needing the holding of tube body, the sealing ring 3 in socket end and tool assembly 2 compresses, and prevents
Only occur the outer engaging portions 34 because of interior ring plate 31 and outer ring plate 32 and its integral structure thickness it is inconsistent caused by between the two not
It can be realized sealing, constitute the thickness D of the outer engaging portions 34 of annular ring and be formed by the interior ring plate 31 and outer ring plate 32 of lip
Consistency of thickness；
--- in order to form the water inlet circuit 7 entered in lip 4, the width L1 for constituting ring plate 31 in above-mentioned lip is small
In the width L2 of above-mentioned outer ring plate 32；
--- in order to further increase the service life of sealing ring, that is, the access times of sealing ring are improved, it is above-mentioned constituting
The enhancement layer that corresponding " ㄥ " shape tissue layer (also including various elastic membranes) is formed is provided in the interior ring plate and outer ring plate of ring
Ring 8；
--- in order to further increase the extruding elasticity of sealing ring, that is, further increases and hold, the extruding of socket end elasticity
Improve sealing performance, constitute be provided in the interior ring plate and outer ring plate of above-mentioned ring accordingly preferably sheet metal or other
" ㄥ " shape elasticity circular layer 9 that elastic plate is constituted；
--- in order to make the water energy being injected into tube body enough enter ring lip 4 composition annular groove in, make interior ring plate into
One step expands outwardly, and improves interior ring plate and holds, the extruding sealing effect of socket end, interior ring plate and the corresponding inside of outer ring plate
(table) face is pitted skin shape or channel form 30, to form water gap 10；
--- as shown in Fig. 1,4, in order to improve the sealing effect of the o-ring groove 22 in the sealing ring and tool assembly 2,
So that the outer ring plate lateral surface of the sealing ring ring and the veneer sealing in 22 base ring face 26 of o-ring groove are constituted, on the outside of outer ring plate
33 end of face (namely lip) formation is outer ramp-like, forms it into spill grooved ring 36；Sealing ring i.e. in sealing ring merging tool assembly
In groove 22, outer ring plate lateral surface 33 is outer ramp-like since end is formed, and just forms spill grooved ring 36, increases the ring with pressure
Air in slot is extruded (as shown in Figure 5), to form vacuum effect, improves the o-ring groove of sealing ring and tool assembly
22 sealing effect is conducive to the sealing effect of sealing ring.
As shown in Figure 4,5, the ductile iron pipe pressure testing sealing frock structure of above structure sealing ring has been used, it is close by being provided with
The tool assembly 2 of seal groove 22 and the sealing ring 3 being fixed in groove are constituted；Wherein, which is lip 4, diameter by section
To inwardly, the outer ring plate 32(outer ring plate be in its axis F to vertical and symmetrical) cross sectional shape be " ㄥ " shape rubber-plastics material
Manufactured ring is constituted.The width for constituting the outer ring plate 32 of above-mentioned ring is consistent with the groove width of 22 bottom of seal groove, makes the sealing
Circle is capable of fixing in the groove 22.The sealing frock of the structure can be realized as described above held with tube body 1, socket end 11,12
Between sealing, formed tube body water filling sealing.Since the sealing ring of the structure is lip 4 radially towards inner interior ring plate 31 and outer ring
Piece 32 constitute, therefore also have the characteristics that installation and remove it is convenient.
In constituting above-mentioned ductile iron pipe pressure testing sealing frock structure:
--- the sealing ring 3 and tool assembly groove that ring is constituted are formed in order to further increase interior ring plate 31 and outer ring plate 32
22 fixation can be used with flowering structure: first, being provided with fixing groove 25 on the lateral wall 24 in o-ring groove 22, be pacified
The outer engaging portions 34 for constituting sealing ring ring are caught in wherein when filling sealing ring；It can also be as shown in fig. 6, close in tool assembly
The side-walls of seal groove 22 fasten or are welded and fixed a pressure ring 26 by bolt 29, can equally make in o-ring groove
One is formed on 22 lateral wall 24 for the fixed fixing groove 25 for constituting sealing ring annular ring outer engaging portions 34；It can also be close
The inner sidewall 27 of seal groove 22 and or lateral wall 24 on concurrently or separately form one for the external of fixed composition sealing ring
The fixing groove 25 in conjunction portion 34, for the fixation to sealing ring；
--- tapered ring 241 in the shape of a trumpet is set on the lateral wall 24 of above-mentioned o-ring groove, not only with
Convenient for the insertion of ductile iron pipe 1, and it can more guarantee the axial concentricity of tube body 1 Yu tooling body sealing ring；
--- as a shown in Figure 6, the inner ring piece end for constituting above-mentioned sealing ring is arranged oblique ring 37, the oblique ring 37 can with it is close
The inner sidewall 27 of seal groove constitutes water inlet ring 28, is not only conducive to the entrance of water, but also can wash away lip 4 and be formed in ring
Silt, to guarantee the cleaning between lip.
Constitute in ductile iron pipe pressure testing sealing frock, be set in o-ring groove by interior ring plate 31 and outer ring plate
The sealing ring that 32 form, lip 4 is constituted radially towards ring made of inner rubber-plastics material can also be structure as shown in Figure 3.
The radial section for constituting the ring that the structure of the sealing ring is is " < > " shape, i.e., in ring plate 31 and outer ring plate 32 and its
The structure of radial section R B at an acute angle.Constitute the outer engaging portions 34 of ring plate 31 and outer ring plate 32 in the ring of the sealing structure circle
Thickness D is equal with the thickness of the interior ring plate of formed lip 4 and outer ring plate, and the width for constituting the interior ring plate of above-mentioned lip is small
In the width of the outer ring plate, it is capable of forming into the water inlet circuit in lip 4；It is provided with and knits in ring plate and outer ring plate in it
The elastic layer ring 9 of enhancement layer ring 8, setting elasticity layer formation that nitride layer is formed；It is interior between the inside and outside ring plate of composition ring lip
Side is the channel form or pitted skin shape 30 for being capable of forming water gap.
Claims (14)
1. a kind of sealing ring, it is characterised in that: formed interior ring plate and outer ring plate, lip is radially towards made of inner rubber-plastics material
Ring is constituted.
2. a kind of sealing ring as described in claim 1, it is characterised in that: the radial section for constituting the ring is the outer ring
Piece is in axially vertical and symmetrical " ㄥ " shape with its.
3. a kind of sealing ring as described in claim 1, it is characterised in that: the radial section for constituting the ring is " < > "
Shape.
4. a kind of sealing ring as described in claim 1, it is characterised in that: constitute the thickness of ring plate and outer ring plate in the ring
It is equal with the thickness of the outer engaging portions of integral structure.
5. a kind of sealing ring as described in claim 1, it is characterised in that: the width for constituting the interior ring plate of the lip is less than institute
State the width of outer ring plate.
6. a kind of sealing ring as described in claim 1, it is characterised in that: constitute and set in the interior ring plate and outer ring plate of the ring
It is equipped with the enhancement layer ring of tissue layer formation.
7. a kind of sealing ring as described in claim 1, it is characterised in that: constitute and set in the interior ring plate and outer ring plate of the ring
It is equipped with the elastic layer ring of elastic layer formation.
8. a kind of sealing ring as described in claim 1, it is characterised in that: the inside and outside ring plate for constituting the ring lip is corresponding
Medial surface be the channel form or pitted skin shape for being capable of forming water gap.
9. a kind of sealing ring as described in claim 1, it is characterised in that: constitute the lip of the outer ring plate lateral surface of the ring
It is outer oblique, form spill grooved ring.
10. a kind of ductile iron pipe pressure testing sealing frock, by being provided with the tool assembly of o-ring groove and being capable of fixing in therein
Sealing ring is constituted；It is characterized by: the sealing ring is formed by interior ring plate and outer ring plate, lip is radially towards inner, the described outer ring
Piece is the composition of ring made of the rubber-plastics material of " < > " shape in axially vertical and symmetrical " ㄥ " shape with its or section, wherein
The width of the outer ring plate and the slot bottom width of the o-ring groove match.
11. a kind of ductile iron pipe pressure testing sealing frock as claimed in claim 10, it is characterised in that: it is recessed to constitute the sealing ring
The sealing ring fixing groove is provided on the inner circle of slot, outer circle or inside and outside round wall.
12. a kind of ductile iron pipe pressure testing sealing frock as claimed in claim 10, it is characterised in that: the o-ring groove
In lateral wall on be provided with the sealing ring fixing mechanism.
13. a kind of ductile iron pipe pressure testing sealing frock as claimed in claim 10, it is characterised in that: the o-ring groove
Cylindrical wall on tapered ring in the shape of a trumpet is set.
14. a kind of ductile iron pipe pressure testing sealing frock as claimed in claim 10, it is characterised in that: constitute the sealing ring
Oblique ring is arranged in inner ring piece end, which can form gap with the inner sidewall of the o-ring groove and constitute water inlet ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821176331.0U CN208885982U (en) | 2018-07-24 | 2018-07-24 | A kind of sealing ring and ductile iron pipe pressure testing sealing frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821176331.0U CN208885982U (en) | 2018-07-24 | 2018-07-24 | A kind of sealing ring and ductile iron pipe pressure testing sealing frock |
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| Publication Number | Publication Date |
|---|---|
| CN208885982U true CN208885982U (en) | 2019-05-21 |
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ID=66507312
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821176331.0U Active CN208885982U (en) | 2018-07-24 | 2018-07-24 | A kind of sealing ring and ductile iron pipe pressure testing sealing frock |
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| CN (1) | CN208885982U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108716546A (en) * | 2018-07-24 | 2018-10-30 | 衡水威达橡塑有限公司 | A kind of sealing ring and ductile iron pipe pressure testing sealing frock |
-
2018
- 2018-07-24 CN CN201821176331.0U patent/CN208885982U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108716546A (en) * | 2018-07-24 | 2018-10-30 | 衡水威达橡塑有限公司 | A kind of sealing ring and ductile iron pipe pressure testing sealing frock |
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