CN206581955U - A kind of Urban Underground piping lane prefabricated pipe section seam elastic sealing gasket - Google Patents
A kind of Urban Underground piping lane prefabricated pipe section seam elastic sealing gasket Download PDFInfo
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- CN206581955U CN206581955U CN201621435915.6U CN201621435915U CN206581955U CN 206581955 U CN206581955 U CN 206581955U CN 201621435915 U CN201621435915 U CN 201621435915U CN 206581955 U CN206581955 U CN 206581955U
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Abstract
The utility model is related to a kind of Urban Underground piping lane prefabricated pipe section seam elastic sealing gasket, it is arranged on the prefabricated pipe section of underground pipe gallery, including sealing pad body, described sealing pad body has upper surface and lower surface parallel up and down, described upper surface is sealing gasket joining contacting surface, described lower surface is prefabricated pipe section contact surface, the line at upper surface midpoint and lower surface midpoint is the symmetry axis of sealing pad body, the both sides outline for sealing connection upper surface and lower surface on pad body is a broken line, it is symmetrical on lower surface to be provided with two grooves for reducing compression stress when sealing gasket is assembled, the first exhausting hole and the second exhausting hole are from top to bottom sequentially provided with described sealing pad body, it is tri-angle-holed that first exhausting hole includes 5 classes, it is tri-angle-holed that second exhausting hole includes 2 classes, all classes are tri-angle-holed on described symmetrical axial symmetry.Compared with prior art, the utility model has compound with regular structure, easy to make, water resistance and mechanical property more excellent.
Description
Technical field
The utility model is related to a kind of elastic sealing gasket, more particularly, to a kind of Urban Underground piping lane prefabricated pipe section seam bullet
Property sealing gasket.
Background technology
Urban Underground piping lane is a kind of unified planning according to city and the design in city, execution conditions and safeguards pipe
The requirement of reason, builds the urban operating mechanism for being used for laying municipal public use pipeline in Urban Underground.Pipeline in Urban Underground piping lane
Capacity is big, and pipeline is concentrated, and has high requirement to Urban Underground piping lane prefabricated pipe section structure anti-seep water, wherein between prefabricated pipe section
Seam waterproof be intermediate portions therein.Non-expansibility synthetic rubber, mainly profit are generally used in Practical Project at present
Compacted with joint filler reaches waterproof purpose, is usually that ethylene propylene diene monomer (EPDM) material molding is made as certain shape
Elastic sealing gasket, is used as main waterproof material.EPDM elastic sealing gasket is pasted onto the specific of prefabricated pipe section in engineering
In waterproof sealing gasket groove, obtained when prefabricated pipe section is assembled by extruding the elastic sealing gasket being attached to respectively on two pieces of prefabricated pipe sections
Obtain water-proof function.And in order to reach certain waterproof ability, EPDM elastic sealing gasket can be in thickness and big, crush seal pad
Assembly force is excessive, and prefabricated pipe section seam end will be damaged and (refer to concrete on the outside of sealing gasket groove), is that this can improve sealing
The section configuration of pad, rationally opens up eyelet to control assembly force, while ensuring water-stagnating effect in sealing gasket.This form of fracture
Also so that elastic sealing gasket has the elasticity of bigger compressibility and Geng Gao, even if prefabricated pipe section seam has certain joint open,
It remains to be in certain compressive state, can effectively stop the seepage of water, it is ensured that the use requirement of Urban Underground piping lane.Therefore
Need to provide new elastic sealing gasket form of fracture, the waterproof requirement of underground pipe gallery prefabricated pipe section seam can be met, together
When ensure that assembly force can meet construction and design requirement, and still with a hook at the end in the case of certain joint open and assembled error compared with
High waterproof ability.
Utility model content
The purpose of this utility model be exactly in order to overcome defect that above-mentioned prior art is present and provide a kind of compound with regular structure,
The small Urban Underground piping lane prefabricated pipe section seam elastic sealing gasket of easy to make, assembly force.
The purpose of this utility model can be achieved through the following technical solutions：
A kind of Urban Underground piping lane prefabricated pipe section seam elastic sealing gasket, is arranged on the prefabricated pipe section of underground pipe gallery, bag
Sealing pad body is included, described sealing pad body has upper surface and lower surface parallel up and down, and described upper surface is sealing
Contact surface is padded, described lower surface is prefabricated pipe section contact surface, described upper surface midpoint and the line at lower surface midpoint are close
The symmetry axis of packing body, sealing pad body on connection upper surface and lower surface both sides outline be a broken line, it is described under
It is symmetrical on end face to be provided with two grooves for reducing compression stress when sealing gasket is assembled, described sealing pad body by upper
And under be sequentially provided with the first exhausting hole and the second exhausting hole, the first described exhausting hole includes that 5 classes are tri-angle-holed, described the
Two exhausting holes are tri-angle-holed including 2 classes, and all classes are tri-angle-holed on described symmetrical axial symmetry.
The first described exhausting hole includes logical on the inside of side through hole and the outer side through hole of first row, described first row in first row
Hole is tri-angle-holed including 3 classes, and 3 classes are tri-angle-holed to be located on the inside of two groove center axis, logical on the outside of described first row
Hole is tri-angle-holed including 2 classes, and 2 classes are tri-angle-holed to be symmetricly set in first row on the outside of side through hole.
3 classes of side through hole are tri-angle-holed on described symmetrical axial symmetry in described first row, and on the inside of first row
The geometric center of gravity line of through hole is parallel with the upper surface of the sealing pad body.
2 classes of the second described exhausting hole are tri-angle-holed to be arranged between two grooves and on described symmetry axis pair
Claim to set.
The tri-angle-holed 2 tri-angle-holed geometric forms of class with the second exhausting hole of 3 classes of side through hole in described first row
Shape is identical, but the tri-angle-holed area of 3 classes of side through hole is more than the tri-angle-holed face of 2 classes of the second exhausting hole in first row
Product.
The tri-angle-holed equilateral triangle that is shaped as of the class of side through hole and the second exhausting hole is at three angles in described first row
Portion is using formation after the fillet chamfering of 1.5mm radiuses.
Shape of through holes is that right angled triangle uses the fillet chamfering of 1.5mm radiuses in three corners on the outside of described first row
After formed.
Side through hole base line is higher than the outer side through hole base line of first row in first row.
Described groove is in inverted U, and described inverted U includes one section of circular arc and straight with described circular arc tangent two
Line.
Described sealing pad body is the sealing pad body being made up of EPDM.
Compared with prior art, the utility model has advantages below：
(1) by shape, the optimization design of position to the first exhausting hole and the second exhausting hole, water proofing property has been obtained
The waterproofing applications of Urban Underground piping lane prefabricated pipe section seam can be particularly suitable for use in the more excellent structure of mechanical property；
(2) by the restriction to the first exhausting hole and second row shape of through holes size, elastic packing is effectively increased
The waterproof ability of pad, while assembly force is smaller；
(3) the utility model compound with regular structure, it is easy to make, it is adaptable to Urban Underground piping lane prefabricated pipe section seam waterproof；
(4) class triangle through hole is used on elastic sealing gasket, can be timely when installing and compress its object is to elastic sealing gasket
Collapse hole, compression assembly force of the reduction elastic sealing gasket in the construction and installation phase is underground pipe gallery using inside and outside two pass elastic packing
The waterproof project of pad provides possible, compared with the elastic sealing gasket of use circular hole common at present, the bullet that the utility model is related to
Property sealing gasket can effectively reduce the assembled difficulty of prefabricated piping lane compression, save the cost of underground pipe gallery construction, can be achieved ground
Lower piping lane is using construction and installation requirement during inside and outside two pass elastic sealing gasket waterproof project.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model Urban Underground piping lane prefabricated pipe section seam elastic sealing gasket；
Fig. 2 is the compression curve of the utility model Urban Underground piping lane prefabricated pipe section seam elastic sealing gasket；
Fig. 3 is the closure compression stress cloud atlas of the utility model Urban Underground piping lane prefabricated pipe section seam elastic sealing gasket；
In figure, 1 is sealing pad body, and 2 be groove, and 3 be side through hole in first row, and 4 be the outer side through hole of first row, and 5 be the
Two exhausting holes.
Embodiment
The utility model is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment 1
As shown in figure 1, a kind of Urban Underground piping lane prefabricated pipe section seam elastic sealing gasket, is arranged on the prefabricated of underground pipe gallery
On section of jurisdiction, including the sealing pad body 1 with upper surface parallel up and down and lower surface, sealing pad body 1 is by ethylene-propylene-diene monomer
Glue is made, and upper surface is sealing gasket joining contacting surface, and lower surface is prefabricated pipe section contact surface, the company at upper surface midpoint and lower surface midpoint
Line is the symmetry axis of sealing pad body 1, and upper surface length is 28mm, and lower surface length is 33mm, the sealing connection of pad body 1 upper end
The both sides outline of face and lower surface is the horizontal range of a broken line, the bending point of broken line and the end points of the upper surface nearest with it
For 5.5mm, and the horizontal range of the end points of the lower surface nearest with it is symmetrical on 3mm, lower surface to be provided with two and be used for
The groove 2 of compression stress when reducing sealing gasket assembling, groove 2 is in inverted U, by one section of circular arc and two linears tangent with circular arc
It is 5.2mm into, arc diameter, the bottom outside of groove 2 and sealing gasket bottom outside distance are 2mm, two bottom centre of groove 2
Distance is 23mm.
The first exhausting hole and the second exhausting hole 5 are from top to bottom sequentially provided with sealing pad body 1, the first exhausting hole includes 5
Individual class is tri-angle-holed, and the second exhausting hole 5 is tri-angle-holed including 2 classes, and all classes are tri-angle-holed on described symmetry axis
Symmetrically.First exhausting hole, which includes side through hole 3 in side through hole 3 in first row and the outer side through hole 4 of first row, first row, includes 3 classes
Tri-angle-holed, 3 classes are tri-angle-holed to be located on the inside of two groove center axis, and the outer side through hole of first row includes 2 class triangles
Hole, 2 classes are tri-angle-holed to be symmetricly set in first row on the outside of side through hole, and the bottom line of side through hole 3 is higher than in first row
The bottom line 0.9mm of the outer side through hole 4 of first row.In first row the upper top surface line of side through hole 3 it is vertical with upper surface away from
From for 1.8mm, the bottom surface line of the outer side through hole 4 of first row and the vertical range of lower surface are 7.7mm, the second exhausting hole 5
The vertical range of bottom surface line and lower surface is 1.9mm.3 classes of side through hole 3 are tri-angle-holed in first row leads to second row
2 tri-angle-holed geometries of class in hole 5 are identical, but the tri-angle-holed area of 3 classes of side through hole 3 is more than second in first row
The tri-angle-holed area of 2 classes of exhausting hole 5.Two profiled holes of side through hole 3 are by equilateral triangle of the length of side for 8mm in first row
Shape is formed after the fillet chamfering of 1.5mm radiuses is used in three corners, and adjacent profiled holes geometry center of gravity line is apart
7.2mm.Two classes of the outer side through hole 4 of first row are tri-angle-holed by three length of sides be respectively 9.5mm, 7.8mm, 5.5mm right angle
Triangle is formed after the fillet chamfering of 1.5mm radiuses is used in three corners, the tri-angle-holed geometry center of gravity line phase of two classes
Away from 28.7mm.2 profiled holes of the second exhausting hole 5 use 1.5mm radiuses for 7mm equilateral triangle by the length of side in three corners
Fillet chamfering after formed, between two grooves 2, adjacent profiled holes geometry center of gravity line is at a distance of 7.9mm.
Elastic sealing gasket requirement can be used assembled equipment that sealing gasket is depressed into closure state, bullet of good performance in assembling
Property sealing gasket should possess the less performance of corresponding assembly force in closed state, to ensure the stability of concrete groove, because
The particularity of Urban Underground piping lane, it is adaptable to which the elastic sealing gasket of Urban Underground piping lane seam waterproof must control its assembly force number
It is worth within the specific limits, to adapt to existing precast assembly ability.
Elastic sealing gasket section is considered as class triangle through hole, its object is to elastic sealing gasket install compress when can and
When collapse hole, compression assembly force of the reduction elastic sealing gasket in the construction and installation phase is that underground pipe gallery is close using inside and outside two pass elasticity
The waterproof project of packing is provided may.Compared with the elastic sealing gasket of use circular hole common at present, what the utility model was related to
Elastic sealing gasket can effectively reduce the prefabricated assembled difficulty of piping lane compression, save the cost of underground pipe gallery construction, can be achieved
Underground pipe gallery is using construction and installation requirement during inside and outside two pass elastic sealing gasket waterproof project.The sealing gasket that the utility model is related to
Obtained compression curve is calculated using nonlinear finite element method simulation and sees accompanying drawing 2, as seen from the figure involved rubber gasket
Less compression stress is only needed in compression process early stage, the assembled difficulty of construction of underground pipe gallery prefabricated pipe section is reduced.It is conventional at present
The assembled power of the mechanical compression that about 100kN/m can be generally provided of precast assembly, and involved sealing gasket institute under complete compressive state
Compression stress is needed not reach 50kN/m, even if using the waterproof project of inside and outside double sealing pad, closing compression stress only 100kN/m,
Effective assembly of prefabricated pipe section can be ensured.
The elastic sealing gasket section that the utility model is related to considers the arranged distribution of class triangle through hole, it is considered to arrange up and down close
The perforate arrangement of packing, makes elastic rubber material form similar positive Y types or inverted Y-shaped structure, forms good inside force structure
System, owes to remain to good stress water resistance when compression degree is larger in elastic sealing gasket, meets all kinds of mistakes of underground pipe gallery
Waterproof ability requirement caused by difference and structure stress under the certain splayed condition of prefabricated pipe section gaping of joints.Also, the structure
System can be less simultaneously in closure decrement with the distribution of contact of sealing gasket in active set, make elastic packing be lined with compared with
High waterproof ability, to adapt to manage caused by underground pipe gallery precast assembly error, prefabricated pipe section fabrication error etc. in truth
Piece seam joint open is excessive, the waterproof ability requirement in the case of contracting that elastic sealing gasket is under-voltage.The sealing gasket that the utility model is related to
Obtained elastic sealing gasket closure compression stress cloud atlas is calculated using nonlinear finite element method simulation and sees that display is pre- in Fig. 3, figure
Regional stress distribution during elastic sealing gasket on tubulation piece mutual compression close state on sealing gasket, light high bright part is represented
Stress upper zone, dark parts represent the slightly lower region of stress.Stress distribution in figure shows that foregoing y-type structure is in sealing gasket
Good supporting role is served during compression, y-type structure bottom and concrete groove contact portion stress are higher, carry
Water pressure resistance performance between highly dense packing and concrete groove.
Claims (9)
1. a kind of Urban Underground piping lane prefabricated pipe section seam elastic sealing gasket, is arranged on the prefabricated pipe section of underground pipe gallery, including
Pad body (1) is sealed, described sealing pad body (1) has upper surface and lower surface parallel up and down, and described upper surface is
Sealing gasket joining contacting surface, described lower surface is prefabricated pipe section contact surface, described upper surface midpoint and the line at lower surface midpoint
For the symmetry axis of sealing pad body (1), it is characterised in that on sealing pad body (1) outside the both sides of connection upper surface and lower surface
Profile is a broken line, the symmetrical groove for being provided with two compression stresses when being used to reduce sealing gasket assembling on described lower surface
(2) the first exhausting hole and the second exhausting hole (5), described first from top to bottom, are sequentially provided with described sealing pad body (1)
Exhausting hole is tri-angle-holed including 5 classes, and described the second exhausting hole (5) is tri-angle-holed including 2 classes, and all classes are tri-angle-holed
On described symmetrical axial symmetry, the first described exhausting hole includes side through hole (3) and the outer side through hole of first row in first row
(4), side through hole (3) is tri-angle-holed including 3 classes in described first row, and 3 classes are tri-angle-holed to be located at two groove (2) centers
On the inside of axis, the outer side through hole (4) of described first row is tri-angle-holed including 2 classes, and 2 classes are tri-angle-holed to be symmetricly set on first
In row on the outside of side through hole (3).
2. a kind of Urban Underground piping lane prefabricated pipe section seam elastic sealing gasket according to claim 1, it is characterised in that institute
3 classes of side through hole (3) are tri-angle-holed on described symmetrical axial symmetry in the first row stated, and side through hole (3) in first row
Geometric center of gravity line with it is described sealing pad body (1) upper surface it is parallel.
3. a kind of Urban Underground piping lane prefabricated pipe section seam elastic sealing gasket according to claim 1, it is characterised in that institute
2 classes of the second exhausting hole (5) stated are tri-angle-holed to be arranged between two grooves (2) and is set on described symmetrical axial symmetry
Put.
4. a kind of Urban Underground piping lane prefabricated pipe section seam elastic sealing gasket according to claim 3, it is characterised in that institute
The tri-angle-holed tri-angle-holed geometry phase of 2 classes with the second exhausting hole (5) of 3 classes of side through hole (3) in the first row stated
Together, but in first row the tri-angle-holed area of 3 classes of side through hole (3) be more than the second exhausting hole (5) 2 classes it is tri-angle-holed
Area.
5. a kind of Urban Underground piping lane prefabricated pipe section seam elastic sealing gasket according to claim 4, it is characterised in that institute
The tri-angle-holed equilateral triangle that is shaped as of the class of side through hole (3) and the second exhausting hole (5) is adopted in three corners in the first row stated
Formed with after the fillet chamfering of 1.5mm radiuses.
6. a kind of Urban Underground piping lane prefabricated pipe section seam elastic sealing gasket according to claim 1, it is characterised in that institute
The outer side through hole (4) of first row stated is shaped as right angled triangle and shape after the fillet chamfering of 1.5mm radiuses is used in three corners
Into.
7. a kind of Urban Underground piping lane prefabricated pipe section seam elastic sealing gasket according to claim 1, it is characterised in that the
Side through hole (3) base line is higher than outer side through hole (4) base line of first row in one row.
8. a kind of Urban Underground piping lane prefabricated pipe section seam elastic sealing gasket according to claim 1, it is characterised in that institute
The groove (2) stated is in inverted U, and described inverted U includes one section of circular arc and two straight lines tangent with described circular arc.
9. a kind of Urban Underground piping lane prefabricated pipe section seam elastic sealing gasket according to claim 1, it is characterised in that institute
The sealing pad body (1) stated is the sealing pad body being made up of EPDM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621435915.6U CN206581955U (en) | 2016-12-26 | 2016-12-26 | A kind of Urban Underground piping lane prefabricated pipe section seam elastic sealing gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621435915.6U CN206581955U (en) | 2016-12-26 | 2016-12-26 | A kind of Urban Underground piping lane prefabricated pipe section seam elastic sealing gasket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206581955U true CN206581955U (en) | 2017-10-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621435915.6U Active CN206581955U (en) | 2016-12-26 | 2016-12-26 | A kind of Urban Underground piping lane prefabricated pipe section seam elastic sealing gasket |
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| CN (1) | CN206581955U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640152A (en) * | 2016-12-26 | 2017-05-10 | 同济大学 | Elastic sealing pad for prefabrication pipe section jointing of city underground pipeline corridor |
| CN108331030A (en) * | 2018-03-22 | 2018-07-27 | 深圳蓝盾防水构造技术有限公司 | Prefabricated assembled concrete piping lane seam waterproof constructs and engineering method |
-
2016
- 2016-12-26 CN CN201621435915.6U patent/CN206581955U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106640152A (en) * | 2016-12-26 | 2017-05-10 | 同济大学 | Elastic sealing pad for prefabrication pipe section jointing of city underground pipeline corridor |
| CN108331030A (en) * | 2018-03-22 | 2018-07-27 | 深圳蓝盾防水构造技术有限公司 | Prefabricated assembled concrete piping lane seam waterproof constructs and engineering method |
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