CN105715902A - Protective appliance for pipe end portion and piping product - Google Patents
Protective appliance for pipe end portion and piping product Download PDFInfo
- Publication number
- CN105715902A CN105715902A CN201510958805.1A CN201510958805A CN105715902A CN 105715902 A CN105715902 A CN 105715902A CN 201510958805 A CN201510958805 A CN 201510958805A CN 105715902 A CN105715902 A CN 105715902A
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- China
- Prior art keywords
- tube end
- ring
- face
- eaves portion
- protection apparatus
- Prior art date
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- 230000001681 protective effect Effects 0.000 title abstract 3
- 239000012530 fluid Substances 0.000 claims abstract description 72
- 238000007789 sealing Methods 0.000 claims abstract description 48
- 230000002093 peripheral effect Effects 0.000 claims abstract description 22
- 125000004122 cyclic group Chemical group 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000000926 separation method Methods 0.000 abstract 1
- 239000002585 base Substances 0.000 description 81
- 239000000203 mixture Substances 0.000 description 26
- 239000003921 oil Substances 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 239000011248 coating agent Substances 0.000 description 8
- 238000000576 coating method Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 241001442589 Convoluta Species 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229920000180 alkyd Polymers 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 239000007767 bonding agent Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000010685 fatty oil Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000003305 oil spill Substances 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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- 150000005846 sugar alcohols Polymers 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/10—Means for stopping flow from or in pipes or hoses
- F16L55/105—Closing devices introduced radially into the pipe or hose
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L57/00—Protection of pipes or objects of similar shape against external or internal damage or wear
- F16L57/005—Protection of pipes or objects of similar shape against external or internal damage or wear specially adapted for the ends of pipes
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
Abstract
The invention provides a protective appliance for a pipe end portion and a piping product having the excellent sealing performance and detachable performance aiming at the pipe end portion even if there is deviation in a diameter of a fluid passage of the pipe end portion. The protective appliance of the pipe end portion can be detachably mounted on a valve frame end portion having an inner peripheral wall surface forming the fluid passage and a ring end surface crossed with the inner peripheral wall surface, and has a cylinder portion inserted in to valve frame end portion and having sealing space; an outer protruding portion for preventing separation arranged at the outer peripheral surface of the cylinder portion and clamped in the inner periphery surface of the valve frame end portion; an annular entablature portion separated upwards in a central axis direction of the cylinder portion relative to the outer protruding portion and integrally formed on the cylinder portion in a manner of facing the ring end surface of the valve frame end portion; and a tapering sealing portion arranged between the outer protruding portion and the annular entablature portion in the central axis direction and having a peripheral cone which is inclined in a manner that the diameter is larger than the outer protruding portion at the annular entablature portion. The peripheral cone is clamped at an end portion margin portion of the fluid passage of the valve frame end portion.
Description
Technical field
The present invention relates to and be installed on tube end and prevent foreign body from entering the tube end protection apparatus managing sealing surface that is interior and that protect tube end and the pipe arrangement product possessing tube end protection apparatus at tube end.
Background technology
In the pipe arrangement products such as various tubular productss and/or the product such as valve, filter screen (strainer), pipe joint, the pipe arrangement that are connected to pipe, the tube end of the sealing surfaces such as the gasket base preventing foreign body from entering in product from tube end and/or to protect tube end is used to protect apparatus.
As conventional tube end protection apparatus; such as known have one side side as bonding plane lamellar tube end protection apparatus (for example, referring to patent documentation 1) being pasted on tube end in the way of the sealing surface of the opening and/or flange that cover pipe end etc..
Additionally; known have following iron plate system and/or resinous protection apparatus: the end side in the short cylinder portion for being inserted in tube end is provided with flange shape pipe end protection portion; and the peripheral part in this short cylinder portion is equipped with multiple flexible tab; enable multiple flexible tab anticreep to tube end when installing it is sticked in the internal perisporium (for example, referring to patent documentation 2,3) of tube end.
And then; it is known that the protection apparatus of a kind of polyvinyl resin; it is the discoideus cap of opening by closing flanged tube end and is pushed into the protection apparatus (for example, referring to patent documentation 4) that the friction fit portion of multiple break corner shapes of multiple bolts hole of flange is integrally formed with finger etc. respectively.
Patent documentation 1: Japanese Unexamined Patent Publication 2002-161993 publication
Patent documentation 2: Japanese Unexamined Patent Publication 10-231988 publication
Patent documentation 3: Japanese Unexamined Patent Publication 2013-40644 publication
Patent documentation 4: No. 4014368 description of U.S. Patent No.
But, it is pasted on the tube end protection apparatus of the conventional lamellar of tube end, comparatively speaking it is low intensive, so while the mode of movement of product, tube end protection apparatus likely breaks and makes to prevent the function that foreign body enters in product impaired, additionally, sealing member breaks when peeling off take off from tube end and/or bonding agent residues in sealing surface, thus the sealing of sealing gasket etc. likely declines, and then, in various valves etc., in advance the antirust oil that the internal perisporium topcoating forming liquid stream road at the valve buckle made by malleable hard iron etc. is applied can not be closed, antirust oil probably can leak and stained floor etc..
On the other hand, in the conventional tube end protection apparatus of resin-made and/or iron plate, there iing the gap that there is cylinder tubulose between the side face in short cylinder portion, the end and the internal perisporium forming fluid passage.Particularly; when the main body of the product side with tube end casts; the internal diameter of its inner circumferential wall and/or fluid passage easily has deviation; therefore the inside caliper tense-lax sometimes realized by flexible tab is relaxed; easily produce the state that flange shape pipe end protection portion is not close to the annular end face of tube end; if producing the state that flange shape pipe end protection portion is not close to the annular end face of tube end, then the foreign body of path and/or dust probably can enter into fluid passage.
Additionally; it is when waiting of casting having the main body of product side of tube end; when being attached with comparatively speaking low viscous oil (liquid) as antirust oil; oil sealing is not lived by being close to of annular end face possibly through flange shape pipe end protection portion Yu tube end, exist oil spill from tube end, the sealing surface of pipe end protection portion due to attachment by this problem stained.
And then, when the conventional tube end pushing multiple friction fit portion in multiple bolts hole protects apparatus, at versatility and/or easy mounting or dismounting this respect, it may have difficult point.
Summary of the invention
The present invention completes to solve such conventional problem, even if its object is to provide the opening footpath with the sufficient intensity and tube end that can play desired defencive function to have deviation to protect apparatus and pipe arrangement product for the tube end that the sealing of tube end is also excellent with mounting or dismounting.
In order to reach above-mentioned purpose; the tube end of present invention protection apparatus; can be installed in mounting or dismounting and there is the inner circumferential wall forming fluid passage and the tube end of annular end face intersected with this inner circumferential wall, it is characterised in that possess: the cylindrical portion of space-closed that is used for being inserted in described tube end and cylinder；The outwardly projecting portion of anticreep, prominent to the outward side of radial direction at multiple positions of circumference from the outer peripheral face of described cylindrical portion, shift flexibly to the inward side of described radial direction when described cylindrical portion is inserted into described tube end and crimp the described inner circumferential wall being sticked in described tube end；Ring-type eaves portion, separates relative to described outwardly projecting portion and to be integrally formed in described cylindrical portion in the way of the described annular end face of described tube end in the central axial direction of described cylindrical portion；With taper sealing, in described central axial direction between described outwardly projecting portion and described ring-type eaves portion, and there is the periphery conical surface to tilt in the way of outwardly projecting portion described in described ring-type eaves portion side radius ratio is big, make the described periphery conical surface be sticked in the end periphery edge portion of described fluid passage of described tube end.
According to this composition, in the present invention, even if there is deviation in the footpath for the fluid passage of the tube end of cylindrical portion insertion, if cylindrical portion is inserted into tube end, the taper sealing that then outwardly projecting portion of radius ratio anticreep is big is also crimped on the end periphery edge portion of the fluid passage of tube end in the scope of this periphery conical surface, it is possible to reliably seal the fluid passage of tube end.And; outwardly projecting portion crimps relative to the inner circumferential wall of tube end and taper sealing makes the periphery conical surface be sticked in the end periphery edge portion of fluid passage of tube end, therefore, it is possible to easily tube end protection apparatus be installed in tube end and can reliably position.It addition, separate the thickness in the ring-type eaves portion in gap relative to the annular end face of tube end and/or rigidity is not particularly limited, use this ring-type eaves portion easily apparatus can be protected to pull down from tube end tube end.Even if as a result of which it is, the footpath becoming the fluid passage with sufficient intensity and the tube end that can play desired defencive function has deviation to protect apparatus for the tube end that the mounting or dismounting that the sealing of tube end is also excellent are excellent.
Tube end in the present invention is used in protection apparatus; can also: described ring-type eaves portion; in the one side of the described annular end face towards described tube end or become the another side of opposition side and have along the prominent base portion of described central axial direction; be formed in tube end install time when receiving vertical load from foreign side, via described base portion described tube end at least support described annular end face circumference multiple positions.
According to this composition; to there is the product of tube end being placed on the supporting surface in floor and/or conveyance in the way of its this tube end is downward, tube end protect apparatus can as the base of the annular end face such as the sealing surface of the in stable condition twelve Earthly Branches stay tube end with not easy damaged and/or the end periphery edge portion of fluid passage function.Particularly; when playing this base functions; taper sealing is embedded in the inner circumferential wall forming fluid passage of tube end with the state that complete cycle is close to; thus tube end protection apparatus is reliably positioned relative to tube end; and base portion becomes the base that at least can support tube end at multiple positions of the circumference of annular end face; the centrage of the fluid passage therefore with the product of tube end is vertical with multiple supporting surfaces through base; the receiving position of the product therefore with tube end is stable, namely can keep the placement of product well.
Preferred: the described base portion in described ring-type eaves portion becomes the radial direction outer circumferential side at described another side along the prominent cyclic rib of described central axial direction ring-type.
According to this composition, tube end protection apparatus is not limited relative to the installing posture of the product with tube end, and base functions is also more excellent.
Preferred: also to have in the periphery in described ring-type eaves portion and the extension eaves portion towards the ring-type do not extended with having step between the one side of described annular end face in described ring-type eaves portion, the face of the corresponding region of the side contrary with described base portion in described ring-type eaves portion and the face towards the side of described annular end face in described extension eaves portion do not have step ground to be smoothly connected, and under the installment state not being close to described annular end face, at least the mask towards described annular end face in extension eaves portion is desired to some extent keeps out of the way angle.
According to this composition; except above-mentioned technique effect; even if this tube end at the product with tube end just installs tube end protection apparatus in the stage that the coating being coated with is required and fully dry; and with tube end protection apparatus is pressed in manner below product is loaded relative to backing plate when, it is possible to suppress coating to concentrate on the surrounding of tube end and phenomenon that ring-type is heaved.
In order to reach above-mentioned purpose, the pipe arrangement product of the present invention is configured to, possess: pipe arrangement product main body, including possess in the valve of tube end and pipe joint either one, described tube end has the inner circumferential wall forming fluid passage and the annular end face intersected with this inner circumferential wall；Any of the above-described tube end arranged with the described tube end in described pipe arrangement product main body protects apparatus.
According to this composition; in the present invention; even if there is deviation in the footpath including valve, the fluid passage of the tube end of the pipe arrangement product main body of pipe joint; if protecting the cylindrical portion of apparatus to be inserted into tube end the tube end with the sufficient intensity that can play desired defencive function; then the taper sealing of tube end protection apparatus is also crimped on the end periphery edge portion of the fluid passage of tube end, it is possible to reliably seal the fluid passage of tube end.And; the outwardly projecting portion of tube end protection apparatus crimps relative to the inner circumferential wall of tube end and the periphery conical surface is sticked in the end periphery edge portion of fluid passage of tube end by taper sealing, therefore, it is possible to easily tube end protection apparatus be installed in the tube end of pipe arrangement product and can reliably position.It addition, separate the thickness in ring-type eaves portion of the tube end protection apparatus in gap relative to the annular end face of the tube end of pipe arrangement product main body and/or rigidity is not particularly limited, it is possible to use this ring-type eaves portion easily to be pulled down from tube end by tube end protection apparatus.
Even if in accordance with the invention it is possible to providing the opening footpath of a kind of sufficient intensity and tube end having and can playing desired defencive function to have deviation to protect apparatus and pipe arrangement product for the sealing of tube end and the tube end of mounting or dismounting also excellence.
Accompanying drawing explanation
Fig. 1 indicates that the axonometric chart of the protection apparatus of the tube end involved by the 1st embodiment of the present invention.
Fig. 2 is equipped with the partial sectional view of the gate valve of the protection apparatus of the tube end involved by the 1st embodiment of the present invention.
Fig. 3 is the protection apparatus of the tube end involved by the 1st embodiment partial cross section with gate valve of the present invention, indicates that the figure of the state before the fluid passage that the cylindrical portion of tube end protection apparatus is inserted into gate valve accordingly.
Fig. 4 is the partial cross section of the tube end involved by the 1st embodiment protection apparatus and the gate valve of the present invention, indicates that the figure of state in the way of the fluid passage that the cylindrical portion of tube end protection apparatus is inserted into gate valve.
Fig. 5 is the partial cross section of the tube end involved by the 1st embodiment protection apparatus and the gate valve of the present invention, indicates that tube end is protected the taper sealing of apparatus to abut with the end periphery edge portion of gate valve and carried out the figure of the state of fluid-tight.
Fig. 6 is the partial cross section of the tube end involved by the 1st embodiment protection apparatus and the gate valve of the present invention, is be installed in the posture when state of gate valve represents to the installation of the tube end of this gate valve with tube end protection apparatus and tube end protects the figure of deformation state of apparatus.
Fig. 7 indicates that the partial sectional view of the protection apparatus of the tube end involved by the 2nd embodiment of the present invention.
Fig. 8 indicates that the partial perspective view of the protection apparatus of the tube end involved by the 3rd embodiment of the present invention.
Fig. 9 indicates that the partial perspective view of the protection apparatus of the tube end involved by the 4th embodiment of the present invention.
Figure 10 indicates that the partial perspective view of the protection apparatus of the tube end involved by the 5th embodiment of the present invention.
Figure 11 indicates that the axonometric chart of the protection apparatus of the tube end involved by the 6th embodiment of the present invention.
Figure 12 is equipped with the partial sectional view of the gate valve of the protection apparatus of the tube end involved by the 6th embodiment of the present invention.
Figure 13 is the partial cross section of the tube end involved by the 6th embodiment protection apparatus and the gate valve of the present invention, is that the tube end protection apparatus possessing and extending eaves portion is installed in the posture when state of gate valve represents to the installation of the tube end of this gate valve and tube end protects the figure of deformation state of apparatus.
Figure 14 is an illustration for the figure of the effect of the protection apparatus of the tube end involved by the 6th embodiment of the present invention; a () figure indicates that the figure heaved, (b) figure of the antirusting paint produced when being not provided with extending eaves portion indicates that by arranging the local figure heaved extending eaves portion and do not produce antirusting paint.
Figure 15 is the partial cross section of the tube end involved by the 7th embodiment protection apparatus and the gate valve of the present invention, is that the tube end protection apparatus possessing and extending eaves portion is installed in the posture when state of gate valve represents to the installation of the tube end of this gate valve and tube end protects the figure of deformation state of apparatus.
Symbol description
1,1A, 1B, 1C, 1D, 1E, 1F ... tube end protection apparatus
2,2A ... cylindrical portion
3 ... outwardly projecting portion
4,4A, 4E, 4F ... ring-type eaves portion
5 ... the periphery conical surface
6 ... taper sealing
7,7A, 7B, 7C, 7D, 7E ... base portion
8,8F ... extend eaves portion
8a ... extend the face towards flange part in eaves portion
30 ... gate valve (pipe arrangement product)
31a ... fluid passage
31b ... inner circumferential wall
31c ... flange part
31d ... the end face (annular end face of tube end) of flange part
31e ... end periphery edge portion
32 ... valve buckle end (tube end)
71 ... the face that the opposition side with base portion in ring-type eaves portion is corresponding
θ ... keep out of the way angle
Detailed description of the invention
Hereinafter, with reference to accompanying drawing while the preferred embodiment of the present invention is illustrated.
(the 1st embodiment)
Fig. 1 is the axonometric chart of the tube end protection apparatus 1 involved by the 1st embodiment.
First, composition is illustrated.
As it is shown in figure 1, the tube end protection apparatus 1 of present embodiment includes: the cylindrical portion 2 of space-closed in cylinder；It is integrally provided to the outwardly projecting portion 3 of the outside of cylindrical portion 2；It is integrally formed in the ring-type eaves portion 4 of cylindrical portion 2；The taper sealing 6 arranged between outwardly projecting portion 3 and ring-type eaves portion 4 in central axial direction；With the base portion 7 prominent towards central axial direction being integrally formed as from ring-type eaves portion 4, they are integrated by the molding synthetic resin such as polypropylene and/or polyethylene.
Tube end protection apparatus involved in the present invention is installed in being able to mounting or dismounting has the inner circumferential wall forming fluid passage and the apparatus of the tube end of annular end face intersected with this inner circumferential wall; therefore in the present embodiment; as the product with tube end; as shown in Figure 2 exemplified with gate valve 30; in the following description; for each element of above-mentioned tube end protection apparatus 1, illustrate by the relation with the gate valve 30 as pipe arrangement product involved in the present invention.It addition, the product with tube end includes the various valves beyond gate valve, and then also include filter screen and/or various pipe joints etc..
Gate valve 30 includes valve buckle 31, valve body 33, valve rod 34, lid 35, yoke 36, handwheel 37 and fluid-tight parts 38.Valve rod 34 includes multiple parts, has and utilizes the length of screw mechanism to change function, and is linked to handwheel 37 and valve body 33.Valve buckle 31 is malleable hard iron system with lid 35.Valve buckle 31 applies antirust oil in the fabrication stage in the cylindric internal perisporium topcoating being formed with fluid passage 31a.
Gate valve 30, by making handwheel 37 rotate to a direction, thus enable that the length of valve rod 34 changes function and makes valve body 33 leave from the valve seat in valve buckle 31 by function in the way of reducing, make its valve opening, additionally, by making handwheel 37 rotate to other direction, thus enable that the valve seat that the length of valve rod 34 changes function function in elongated manner and makes valve body 33 be close in valve buckle 31 so that it is valve closing.
Valve buckle 31 has the through flange part 31c of flange part 31c, fluid passage 31a at two ends.The valve buckle end 32 comprising flange part 31c is corresponding with the tube end of the present invention, the end face of flange part 31c is corresponding with the annular end face of the present invention, the end of the fluid passage 31a of through flange part 31c is corresponding with the opening of the present invention, and the wall forming fluid passage 31a is corresponding with the inner circumferential wall of the present invention.The end face square crossing of the centrage of fluid passage 31a and the inner circumferential wall of formation fluid passage 31a and flange part 31c.
Hereinafter, each element of apparatus 1 is protected to illustrate the tube end of present embodiment with reference to Fig. 1, Fig. 2.
Tube end protection apparatus 1 is installed on the two ends of gate valve 30.Cylindrical portion 2 includes cylindrical portion main body 2a and end-enclosed portion 2b, it it is the cylindrical shape of the depth end closing in space in cylinder, also it is can be inserted in fluid passage 31a the part of such as 40～50mm from the opening of the flange part 31c of gate valve 30, is formed as the size in its footpath, periphery little such as 1～2mm of most path than the fluid passage 31a caused by deviation when the manufacture of gate valve 30.The wall thickness of cylindrical portion 2 is such as set to 1mm.
Outwardly projecting portion 3 is prominent to the outward side of radial direction at multiple positions (being 4 in the drawings) of circumference from the outer peripheral face of cylindrical portion 2, and there is anti-drop function, it may be assumed that shift flexibly to the inward side of radial direction when cylindrical portion 2 is inserted in fluid passage 31a from the opening of the flange part 31c of gate valve 30 and crimp engaging (internal diameter clamping) in the inner circumferential wall 31b forming fluid passage 31a of gate valve 30.The wall thickness of the surrounding of the outwardly projecting portion 3 of cylindrical portion 2 is set as: when the internal diameter clamping undertaken by outwardly projecting portion 3, outwardly projecting portion 3 in the central axial direction of cylindrical portion 2 luffing and play spring force thus crimping be sticked in inner circumferential wall 31b.It is arranged at cylindrical portion 2 in the way of outwardly projecting portion 3 is prominent by the big such as 1～3mm of the maximum diameter than the fluid passage 31a caused by deviation when the manufacture of gate valve 30.
Ring-type eaves portion 4 is integrally formed as flange shape in the opposite side that gate valve inserts side of cylindrical portion 2, towards the end face (corresponding with the annular end face of the tube end of the present invention) of the flange part 31c of gate valve 30.Thickness is such as set to 2～4mm by ring-type eaves portion 4, the size of diameter is formed as external diameter decimal mm～ten than the flange part 31c of gate valve 30 and counts mm.The profile in ring-type eaves portion 4, as long as in figure 2 it is shown, the size that can be covered by the bolt hole 31d of flange part 31c, can also be oval and/or polygon except circle.
Ring-type eaves portion 4 and outwardly projecting portion 3 separate such as 30mm～40mm in the central axial direction of cylindrical portion 2, are provided with taper sealing 6 between outwardly projecting portion 3 and ring-type eaves portion 4.Taper sealing 6, has the periphery conical surface 5 to tilt in the way of side, ring-type eaves portion 4 radius ratio fluid passage 31a is big, and is configured such that this periphery conical surface 5 is sticked in the end periphery edge portion 31e of the fluid passage 31a of gate valve 30 with the state that complete cycle is close to.Taper sealing 6 is formed as having avoids when being sticked in the inner circumferential wall 31b forming fluid passage 31a of gate valve 30 due to chock effect the suitable angle behind the surging little inclination angle embedded, the inclination angle of such as 5～45 °, is more preferably set to the inclination angle of 15～25 °.
Additionally, taper sealing 6 is integrated in the present embodiment, it may also be another part of the independent rubber cut off from cylindrical portion 2 and ring-type eaves portion 4, or independent resinous it is divided into multiple dividing bodies, it is form ring with multiple dividing bodies and between ring-type eaves portion 4, in the way of sealing, carry out the composition assembled.Additionally, the taper sealing 6 of outwardly projecting portion 3 and ring-type can also be set to another part of the independent rubber cut off from cylindrical portion 2 and ring-type eaves portion 4, be set to make after being embedded in cylindrical portion 2 outside taper sealing 6 then to make the composition in the chimeric hole being installed on cylindrical portion 2 of outwardly projecting portion 3.And then it addition, taper sealing 6 can also be formed by the hollows with the radius suitable with above-mentioned inclination angle.
Base portion 7 become another side radial direction outer circumferential side from this another towards the prominent cyclic rib of central axial direction, this another side is the face of the opposition side of the one side of the end face 31d (corresponding with the annular end face of the tube end of the present invention) of the flange part 31c towards gate valve 30.The border circular areas 41 between taper sealing 6 and base portion 7 in ring-type eaves portion 4 becomes flexion zones.Owing to possessing base portion 7, when bearing vertical load from foreign side in ring-type eaves portion 4 when to the installation of tube end, flexion zones 4a bends, the peripheral part with base portion 7 opposition side in ring-type eaves portion 4 is connected to the end face 31d of the flange part 31c of gate valve 30, as the base function of the flange part 31c that can support gate valve 30.The peripheral part in ring-type eaves portion 4, if the vertical load putting on ring-type eaves portion 4 releases, then flexion zones 4a is reset to plane and the flange part 31c of generation and gate valve 30 gap.
It follows that effect is illustrated with reference to Fig. 3～Fig. 6.
As shown in Figure 3, Figure 4, it is coated with antirust oil L at the inner circumferential wall 31b being formed with fluid passage 31a of gate valve 30.When protecting apparatus 1 to be installed on gate valve 30 tube end; as shown in Figure 3; make the centrage level of the fluid passage 31a of gate valve 30; and make the cylindrical portion 2 of fluid passage 31a of tube end protection apparatus 1 relative with concentric relative to the fluid passage 31a of gate valve 30; next; as shown in Figure 4, cylindrical portion 2 is inserted into fluid passage 31a.
Now, the wall thickness of the periphery of outwardly projecting portion 3 is thinning, if therefore outwardly projecting portion 3 is connected to, at the entrance of fluid passage 31a, the inner circumferential wall 31b forming fluid passage 31a, can shift on the centerline direction of cylindrical portion 2, play and want the spring force of home shape to head on inner circumferential wall 31b and relative to inner circumferential wall 31b sliding contact.The deformation of outwardly projecting portion 3 does not result in the change of shape of taper sealing 6.
It follows that push, until as shown in Figure 5, the periphery conical surface 5 of taper sealing 6 be connected to the entrance inner periphery (corresponding with the end periphery edge portion of the inner circumferential wall of the tube end of the present invention) of fluid passage 31a of gate valve 30.The maximum diameter of the periphery conical surface 5 of taper sealing 6 maximum diameter caused by the deviation on manufacturing than the fluid passage 31a of gate valve 30 is big, and therefore in the way of the periphery conical surface 5, complete cycle is connected to the entrance inner periphery of fluid passage 31a.
Its result is to become taper sealing 6 convection cell path 31a to have carried out the state of fluid-tight, and the inner circumferential wall 31b of gate valve 30 is carried out internal diameter clamping by multiple outwardly projecting portion 3, and therefore the state of this fluid-tight is maintained.It addition, complete cycle is connected to the entrance inner periphery of fluid passage 31a in the way of the periphery conical surface 5, between ring-type eaves portion 4 and the flange part 31c of gate valve 30, therefore produce gap.This gap can also utilize as putting into the gap of work piece holder when being pulled down from gate valve 30 by tube end protection apparatus 1.
The two ends of fluid passage 31a be provided with tube end protection apparatus 1 gate valve 30 warehouse in storage and/or carrying in the process of circulation in; as in figure 2 it is shown, by fluid passage 31a along the vertical direction in the way of gate valve 30 is placed on backing plate P and arranges multiple and be set to and 2 grades, state 3 grades overlapping.Fig. 6 represent by fluid passage 31a along the vertical direction in the way of gate valve 30 is placed in the state on backing plate P.
As shown in Figure 6; tube end protection apparatus 1 complete cycle in the way of the periphery conical surface 5 of taper sealing 6 is close to the end periphery edge portion 31e of valve buckle end 32 and is closed by fluid passage 31a, it is possible to prevent the antirust oil L declined from initial coating position due to action of gravity from spilling.
It addition, tube end protection apparatus 1, because ring-type eaves portion 4 is corresponding with the end face of the flange part 31c of gate valve 30, it is possible to as the end face not function by base that is stained and that be stably supported of protection this flange part 31c.
Due to the counteracting force from backing plate P relative with the deadweight of gate valve 30, base portion 7 bears pressure at right angle from backing plate P, therefore, become following state: the region of the ring-type in the way in ring-type eaves portion 4 and flexion zones 4a are to flange part 31c side elastic deformation, the peripheral part in ring-type eaves portion 4 is close to the end face peripheral part of flange part 31c, and circular base portion 7 complete cycle is close to backing plate P.
So, base portion 7, as base function, makes backing plate P and taper sealing 6 remain contactless state, and thus, namely the receiving position of gate valve 30 stably can keep the placement of gate valve 30 well.
As described above; tube end involved by present embodiment protection apparatus 1; even if there is deviation in the footpath for the fluid passage 31a of the valve buckle end (tube end) 32 of cylindrical portion 2 insertion; if cylindrical portion 2 is inserted into fluid passage 31a; the taper sealing 6 that then outwardly projecting portion 3 of radius ratio anticreep is big is connected to the end periphery edge portion 31e of fluid passage 31a in the scope of its periphery conical surface 5, it is possible to reliably seal the fluid passage 31a of valve buckle end 32.
And; outwardly projecting portion 3 crimps relative to the inner circumferential wall 31b of valve buckle end 32 and taper sealing 6 makes the periphery conical surface 5 be sticked in the end periphery edge portion 31e of fluid passage 31a of valve buckle end 32, therefore, it is possible to easily tube end protection apparatus 1 is installed in valve buckle end 32 and is reliably positioned.It addition, separate the thickness in the ring-type eaves portion 4 in gap relative to the annular end face 31d of valve buckle end 32 and/or rigidity is not particularly limited, it is possible to use this ring-type eaves portion 4 easily to protect apparatus 1 to pull down from valve buckle end 32 tube end.Its result is; become following tube end protection apparatus 1: there is the sufficient intensity that can play desired defencive function, even and if there is deviation in the footpath of the fluid passage 31a of valve buckle end 32, for the sealing of the fluid passage 31a of valve buckle end 32 is still excellent and mounting or dismounting excellent.
Gate valve 30 as the pipe arrangement product involved by present embodiment, there is the inner circumferential wall forming fluid passage 31a and the valve buckle end (tube end) 32 of annular end face that intersects with this inner circumferential wall possesses tube end and protects apparatus 1, even if therefore there is deviation in the footpath of the fluid passage of valve buckle end 32, if the cylindrical portion 2 of the tube end protection apparatus 1 with sufficient intensity that can play desired defencive function is inserted into valve buckle end 32, then the taper sealing 6 of tube end protection apparatus 1 is also crimped on the end periphery edge portion of the fluid passage 31a of valve buckle end 32, can reliably seal the fluid passage 31a of valve buckle end 32.
The outwardly projecting portion 3 of tube end protection apparatus 1 crimps relative to the inner circumferential wall of the valve buckle end 32 of gate valve 30 and taper sealing 6 is sticked in the end periphery edge portion of fluid passage of tube end at the periphery conical surface 5, therefore, it is possible to easily tube end protection apparatus 1 is installed in valve buckle end 32 and can reliably be positioned.Additionally; the thickness and/or the rigidity that separate the ring-type eaves portion 4 of the tube end protection apparatus 1 in gap relative to the annular end face of the valve buckle end 32 of pipe arrangement product main body are not particularly limited, it is possible to use tube end is easily protected apparatus 1 to pull down from valve buckle end 32 by this ring-type eaves portion 4.
(the 2nd embodiment)
Fig. 7 indicates that the partial sectional view of the tube end protection apparatus 1A involved by the 2nd embodiment.
As shown in Figure 7; constituting of tube end involved by the 2nd embodiment protection apparatus 1A of the present invention is roughly the same with the composition of the tube end protection apparatus 1 involved by the 1st embodiment described based on above-mentioned Fig. 1～Fig. 6; therefore to identical the constituting the identical symbol of mark and omission is described of the composition protecting apparatus 1 with the tube end involved by the 1st embodiment, distinctive composition is only described.
Tube end protection apparatus 1A, compared with using protection apparatus 1 with the tube end involved by the 1st embodiment, the element corresponding to cylindrical portion 2A, ring-type eaves portion 4A and base portion 7A is different.
As it is shown in fig. 7, cylindrical portion 2A includes cylindrical portion main body 2a and pars intermedia closure 2c, being the cylindrical shape of space-closed in cylinder, ring-type eaves portion 4A has: Circular Plate portion, inner circumferential side 4a；Outer circumferential side Circular Plate portion 4b；With pliable pars convoluta 4c, its cross sectional shape occupying the more intermediate annular region between inner circumferential side Circular Plate portion 4a and outer circumferential side Circular Plate portion 4b and radial direction is formed as wavy, and is connected with outer circumferential side Circular Plate portion 4b by Circular Plate portion, inner circumferential side 4a.Circular Plate portion, inner circumferential side 4a is connected by pliable pars convoluta 4c with outer circumferential side Circular Plate portion 4b; make when tube end protects apparatus 1A to be installed on gate valve 30 shown in Fig. 2, the size that the gap of the gap-ratio flange part 31c and Circular Plate portion, inner circumferential side 4a of flange part 31c and outer circumferential side Circular Plate portion 4b is desired greatly.Flexion zones 41A includes pliable pars convoluta 4c.
Base portion 7A is arranged in the gap of flange part 31c and outer circumferential side Circular Plate portion 4b, is integrally formed as the annulus tabular of heavy wall by outer circumferential side Circular Plate portion 4b.When tube end protects apparatus 1A to be installed on gate valve 30, between base portion 7A and flange part 31c, there is gap.It addition, base portion 7A can not also be possessed by one-body molded with ring-type eaves portion 4A, and arrange as another parts.
If the vertical load from outside acts on ring-type eaves portion 4A, then being born this vertical load and pliable pars convoluta 4c flexure by outer circumferential side Circular Plate portion 4b, thus base portion 7A is close to flange part 31c and as base function.
(the 3rd embodiment)
As shown in Figure 8; constituting of tube end involved by the 3rd embodiment protection apparatus 1B of the present invention is roughly the same with the composition of the tube end protection apparatus 1 involved by the 1st embodiment; therefore the composition protecting apparatus 1 with the tube end involved by the 1st embodiment is identical composition; mark identical symbol and illustrated to omit, distinctive composition is only described.Tube end protection apparatus 1B, time compared with using protection apparatus 1 with the tube end involved by the 1st embodiment, the element corresponding to base portion 7B is different.
Base portion shown in base portion 7B and Fig. 17 is same, and in the region of outer circumferential side in face of the same side in ring-type eaves portion 4, scattering device has long convex strip portions and short convex strip portions in the way of parallel to each other.Flexion zones 41B is the convex strip portions long with 2 and the border circular areas of 2 short convex strip portions inscribes.Base portion 7B is set to have desired thickness.Namely; if tube end protection apparatus 1B is installed on the flange part 31c of the tube end 32 of the gate valve 30 shown in Fig. 2, is close to the backing plate P shown in Fig. 2 via 4 base portion 7B and bears vertical load; then can keep following state due to the thickness of base portion 7B: the dorsal surface part of each base portion 7B in ring-type eaves portion 4 is close to the flange part 31c shown in Fig. 2, and the inner peripheral portion in ring-type eaves portion 4 is not close to backing plate P.Therefore, base portion 7B, because the centrage of the fluid passage of gate valve 30 becomes vertical with backing plate P, places stable base functions so having.
Base portion 7B, is arranged as long big convex strip portions in the region deviateed from the center in ring-type eaves portion 4, additionally in the region at the center through ring-type eaves portion 4 except central area is arranged as short convex strip portions.Base portion 7B is not located at the reason in region, inner circumferential side: when vertical load is born in ring-type eaves portion 4, the flange part shown in Fig. 2 is close in ring-type eaves portion 4, all faces through base portion 7B will not become a plane, and base functions becomes unstable.
(the 4th embodiment)
As shown in Figure 9; constituting of tube end involved by the 4th embodiment protection apparatus 1C of the present invention is roughly the same with the composition of the tube end protection apparatus 1 involved by the 1st embodiment; therefore the composition protecting apparatus 1 with the tube end involved by the 1st embodiment is identical composition; mark identical symbol and illustrated to omit, distinctive composition is only described.Tube end protection apparatus 1C is compared with using protection apparatus 1 with the tube end involved by the 1st embodiment, the element corresponding to base portion 7C is different.
Base portion 7C divides the convex strip portions of the multiple little square shape configuring and extending to radiation direction from center to arrange in the face of the same side in ring-type eaves portion 4 as in a circumferential direction 4 grades.Flexion zones 41C is the border circular areas of the convex strip portions inscribe with 4 square shapes.The convex strip portions of 4 square shapes and base portion 7C, have desired thickness and have desired thickness in the outer circumferential side region in ring-type eaves portion 4 and arrange.Namely; if tube end protection apparatus 1C is installed on the flange part 31c of the tube end 32 of the gate valve 30 shown in Fig. 2, is close to the backing plate P shown in Fig. 2 via 4 base portion 7C and bears vertical load; then can keep following state due to the thickness of base portion 7C: flexion zones 41C flexure and the dorsal surface part of each base portion 7C in ring-type eaves portion 4 is close to the flange part 31c shown in Fig. 2, and the inner peripheral portion in ring-type eaves portion 4 is not close to backing plate P.Therefore, base portion 7C, because the centrage of the fluid passage of gate valve 30 becomes vertical with backing plate P, places stable base functions so having.
(the 5th embodiment)
As shown in Figure 10; constituting of tube end involved by the 5th embodiment protection apparatus 1D of the present invention is roughly the same with the composition of the tube end protection apparatus 1 involved by the 1st embodiment; so the composition that the composition protecting apparatus 1 with the tube end involved by the 1st embodiment is identical; mark identical symbol and illustrated to omit, distinctive composition is only described.Tube end protection apparatus 1D, uses with the tube end involved by the 4th embodiment compared with protection apparatus 1C, and the shape of the base portion 7D being only arranged at ring-type eaves portion 4 is different.
Base portion 7D, all side region 4 deciles in a circumferential direction in face of the same side in ring-type eaves portion 4 and configure and arrange as the convex strip portions of toroidal of desired thickness.Flexion zones 41D is the border circular areas of the convex strip portions inscribe with 4 toroidals.4 base portion 7D have following thickness: if making 4 base portion 7D be close to the backing plate P shown in Fig. 2 and bear vertical load, then can keep the state that the inner peripheral portion that the dorsal surface part of each base portion 7D in ring-type eaves portion 4 is close to the flange part 31c shown in Fig. 2 and ring-type eaves portion 4 is not close to backing plate P due to the thickness of base portion 7D.Therefore, base portion 7D, because the centrage of the fluid passage of gate valve 30 is vertical with backing plate P, places stable base functions so having.
(the 6th embodiment)
As shown in Figure 11～Figure 14; the tube end involved by 6th embodiment of present invention protection apparatus 1E; use compared with protection apparatus 1 with the tube end involved by the 1st embodiment; the shape of the peripheral part comprising the ring-type eaves portion 4E of base portion 7E is different; other are constituted; because be roughly the same with the composition that the tube end involved by the 1st embodiment protects apparatus 1, so mark the symbol identical with the tube end protection apparatus 1 involved by the 1st embodiment and illustrated to omit.
Ring-type eaves portion 4E, at the peripheral part with the another side of the flange part 31c opposition side of gate valve 30, there is the circular base portion 7E prominent to central axial direction, can via the base of the ring-type of base portion 7E support lugn portion 31c when bearing vertical load from outside when being formed in the installation to flange part 31c.The extension eaves portion 8 of the ring-type having step ground smoothly not extend between the face 71 of 4E's and base portion 7E opposite side corresponding region, ring-type eaves portion is had in the periphery of ring-type eaves portion 4E.In this embodiment, under the installment state not being close to flange part 31c, the face 71 of the corresponding region with base portion 7E opposite side of ring-type eaves portion 4E and extend being set to the face 8a of side towards flange part 31c and becoming the face being smoothly connected of eaves portion 8, has and desired keeps out of the way angle θ.
The shape of the peripheral part of the ring-type eaves portion 4E comprising base portion 7E is illustrated.
Base portion 7 involved by base portion 7E and the 1 embodiment is similarly formed as circular.
Tube end protection apparatus 1E has extension eaves portion 8 further at the peripheral part of ring-type eaves portion 4E, and this protects apparatus 1 different from the tube end involved by the 1st embodiment.
In this embodiment, extend eaves portion 8 extend its wall thickness of cardinal extremity 8b equal with the wall thickness of ring-type eaves portion 4E, taper into periphery end wall thickness, towards flange part 31c face with not towards face consistent in outer circumference end.The size extending eaves portion 8 is different because of the diametric width dimensions of the size of gate valve 30 and/or flange part 31c.Such as, extend the little 5mm of being set to of length a of the bearing of trend in eaves portion 8 and be set to greatly 15mm, it addition, the external diameter extending eaves portion 8 is set as the size of the little such as 2～20mm of the external diameter than flange part 31c.
For comprising the face towards flange part 31c of the ring-type eaves portion 4E extending eaves portion 8, there is following such feature.
In fig. 12, size a represents width dimensions (the diametric size of the face 8a towards flange part 31c extending eaves portion 8, identical below), size b represents the width dimensions in the face 71 of the opposition side corresponding to base portion 7E of ring-type eaves portion 4E, represents the width dimensions in the face 42 of the flange part 31c towards gate valve 30 of the inner region in the face 71 of ring-type eaves portion 4E.
The face 42 of ring-type eaves portion 4E, same with the ring-type eaves portion 4 involved by the 1st embodiment, consistent with the axially vertical plane protecting apparatus 1 relative to tube end.The face 71 of ring-type eaves portion 4E has step ground not smoothly to be connected with the face 8a towards flange part 31c extending eaves portion 8, has desired keep out of the way angle θ relative to being perpendicular to tube end and protect the axial plane of apparatus 1.This keeps out of the way angle θ preferably along with becoming big close to the outer circumferential side extending eaves portion 8.For example, it is preferable to, by extend eaves portion 8 peripheral part become 10～15 degree keep out of the way angle in the way of keep out of the way.
In fig. 12, keep out of the way the section start of angle θ be set to corresponding region with base portion 7E opposite side face 71 inner circumferential near 72.But, in fig. 12, there is the face keeping out of the way angle θ and be present in the counteracting force from ground plane to produce the periphery in region be important, it is also possible to the face 8a towards flange part 31c only extending eaves portion 8 has and keeps out of the way angle θ.It addition, extend eaves portion 8 not towards the face of the side of flange part 31c also by wall thickness along with being formed as inclined plane close to outer circumferential side in the way of diminishing.
It addition, extend eaves portion 8 can also, extending the cardinal extremity 8b wall thickness of such as half being set to the wall thickness of ring-type eaves portion 4E, and do not becoming the axially vertical plane relative to tube end protection apparatus 1 towards the face of the side of flange part 31c.
The above-mentioned angle θ that keeps out of the way preferably sets by following relation: as shown in figure 13; tube end is protected apparatus 1E be installed on gate valve 30 and with tube end is protected apparatus 1E be pressed in manner below gate valve 30 is placed on backing plate P time, ring-type eaves portion 4E increases and bends thus the corresponding face of the dorsal part with base portion 7E in ring-type eaves portion 4 is then close to close to parastate relative to flange part 31c.After base portion 7E is by flange part 31c and backing plate P clamping, tube end protection apparatus 1E elastic deformation, the face corresponding with the dorsal part with base portion 7E in ring-type eaves portion 4, the face being close to backing plate P of base portion 7E becomes parastate.
It is provided with and above-mentioned keep out of the way angle θ and extend eaves portion 8 and have the outside of the reason that smoothly do not arrange of step ground and gate valve 30 to be coated with relation.
Gate valve 30; in the last operation manufactured; modified alkyd resin coating (cold coating making the acid of many alkali modified with the condensation substance of polyhydric alcohol with fatty oil and/or fatty acid) that fast drying at normal temperatures, gloss, hardness, oil resistivity, against weather are excellent is utilized to carry out rust preventive painting becoming the mode that thickness is the coated film of ten several μm～tens of μm outside; the natural drying of about 1 day is carried out after application; then as shown in figure 13, at valve buckle end (tube end) 32, tube end protection apparatus 1E it is installed and is stored in warehouse.
The peripheral part except sealing surface for the valve buckle end (tube end) 32 of gate valve 30 is also carried out modified alkyd resin application, and modified alkyd resin application is also close in the face that therefore dorsal part with base portion 7E of ring-type eaves portion 4E is corresponding.Herein; when application coverlay is fully not dry; as shown in Figure 14 (a); protect in apparatus 1 at the tube end being absent from extending eaves portion 8; application coverlay F is subject to the load of gate valve 30, such as moves outward in the downward load F compressing of the center of gravity generation being positioned at handle side in the gate valve shown in Fig. 2, and the phenomenon that coating is heaved annularly along the periphery concentration in extension eaves portion 8 occurs.Therefore, if protecting apparatus 1 to pull down tube end when the use of gate valve 30, then can see big the heaving of the ring of coating, the evaluation of product thus probably can be made to decline.
Therefore, at the tube end involved by present embodiment with in protection apparatus 1E, it is not subject between the extension eaves portion 8 of the load of gate valve 30 and ring-type eaves portion 4E not extend with there is no step by making in the outside of ring-type eaves portion 4E, and the face of the load bearing gate valve 30 at ring-type eaves portion 4E (face with base portion 7E opposite side) and extend eaves portion 8 the side towards flange part 31c face on arrange and desired keep out of the way angle θ, thus as shown in Figure 14 (b), even if the not dry fully application coverlay F oppressed by the face with base portion 7E opposite side of ring-type eaves portion 4E moves laterally, the eaves portion 8 that extends by only slight the load bearing gate valve 30 that also is able to makes the application coverlay F moved laterally uniform, enable to not produce big the heaving of such coating shown in Figure 14 (a) in the outer circumference end extending eaves portion 8.
It addition, as the variation of the 6th embodiment, there is no step as long as extending and there is desired keeping out of the way angle θ and extend between eaves portion 8 and ring-type eaves portion 4E, it is also possible to extend outside radial direction as former state by the wall thickness of ring-type eaves portion 4E.
(the 7th embodiment)
As shown in figure 15; the tube end involved by 7th embodiment of present invention protection apparatus 1F; do not protect, with at the tube end involved by the 1st embodiment, the base portion that in apparatus 1, the base portion 7 of setting is corresponding at ring-type eaves portion 4F; replace in this; it is thick that ring-type eaves portion 4F is formed as wall thickness in the way of the thickness comprising base portion, and be arranged in ring-type eaves portion 4F when being assembled in gate valve 30 and be close to flange part 31c.
In the tube end periphery with protection apparatus 1F, have and ring-type eaves portion 4F flange part 31c fluid-tight engagement face 43 between have step ground smoothly not extend the extension eaves portion 8F of ring-type.Extend the face 8a of the side towards flange part 31c of eaves portion 8F become the face being smoothly connected with fluid-tight engagement face 43 and have and desired keep out of the way angle θ.The starting point keeping out of the way angle θ can also be consistent with the extension cardinal extremity 8b of the face 8a of the side towards flange part 31c being close to face 43 and extension eaves portion 8F being close to flange part 31c of ring-type eaves portion 4F.Therefore, extend eaves portion 8F and be set to identical with the extension eaves portion 8 of the tube end protection apparatus 1E involved by the 6th embodiment of the present invention.
For tube end other compositions of protection apparatus 1F, roughly the same with the composition that the tube end involved by the 1st embodiment protects apparatus 1, therefore mark the symbol identical with the tube end protection apparatus 1 involved by the 1st embodiment and omission is described.
Additionally; in the 7th embodiment; illustrate with double as mode for base portion ring-type eaves portion 4F is formed as wall thickness thick and be provided with the mode extending eaves portion 8F, but present invention resides in the variation that extension eaves portion is set in the tube end protection apparatus 1A～1D involved by the 2nd～the 5th embodiment in the periphery in ring-type eaves portion.
As described above; tube end protection apparatus involved in the present invention and pipe arrangement product; there is the sufficient intensity that can play desired defencive function; even and if the opening footpath of tube end has deviation also to have this effect excellent in mounting or dismounting of the sealing for tube end, protecting apparatus and all pipe arrangement products all useful tube end.
Claims (5)
1. a tube end protection apparatus, can be installed in mounting or dismounting the tube end of the inner circumferential wall with formation fluid passage and the annular end face intersected with this inner circumferential wall, it is characterised in that possess:
For being inserted in described tube end and cylinder the cylindrical portion of space-closed；
The outwardly projecting portion of anticreep, prominent to the outward side of radial direction at multiple positions of circumference from the outer peripheral face of described cylindrical portion, shift flexibly to the inward side of described radial direction when described cylindrical portion is inserted into described tube end and crimp the described inner circumferential wall being sticked in described tube end；
Ring-type eaves portion, separates relative to described outwardly projecting portion and to be integrally formed in described cylindrical portion in the way of the described annular end face of described tube end in the central axial direction of described cylindrical portion；With
Taper sealing, in described central axial direction between described outwardly projecting portion and described ring-type eaves portion, and there is the periphery conical surface to tilt in the way of outwardly projecting portion described in described ring-type eaves portion side radius ratio is big, make the described periphery conical surface be sticked in the end periphery edge portion of described fluid passage of described tube end.
2. tube end according to claim 1 protection apparatus, it is characterised in that
Described ring-type eaves portion, in the one side of the described annular end face towards described tube end or become the another side of opposition side and have along the prominent base portion of described central axial direction, be formed in tube end install time when receiving vertical load from foreign side, via described base portion described tube end at least support described annular end face circumference multiple positions.
3. tube end according to claim 2 protection apparatus, it is characterised in that
The described base portion in described ring-type eaves portion becomes the radial direction outer circumferential side at described another side along the prominent cyclic rib of described central axial direction ring-type.
4. tube end according to claim 2 protection apparatus, it is characterised in that
Also have in the periphery in described ring-type eaves portion and the extension eaves portion towards the ring-type do not extended with having step between the one side of described annular end face in described ring-type eaves portion, the face of the corresponding region of the side contrary with described base portion in described ring-type eaves portion and the face towards the side of described annular end face in described extension eaves portion do not have step ground to be smoothly connected, and under the installment state not being close to described annular end face, at least the mask towards described annular end face in extension eaves portion is desired to some extent keeps out of the way angle.
5. a pipe arrangement product, it is characterised in that possess:
Pipe arrangement product main body, including possess in the valve of tube end and pipe joint either one, described tube end has the inner circumferential wall forming fluid passage and the annular end face intersected with this inner circumferential wall；With
Tube end protection apparatus according to any one of the Claims 1-4 that the described tube end of described pipe arrangement product main body is arranged.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-258093 | 2014-12-19 | ||
| JP2014258093 | 2014-12-19 | ||
| JP2015228040A JP6654411B2 (en) | 2014-12-19 | 2015-11-20 | Pipe end protection equipment and piping products |
| JP2015-228040 | 2015-11-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105715902A true CN105715902A (en) | 2016-06-29 |
| CN105715902B CN105715902B (en) | 2019-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510958805.1A Active CN105715902B (en) | 2014-12-19 | 2015-12-18 | Tube end protection apparatus and piping product |
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| Country | Link |
|---|---|
| CN (1) | CN105715902B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH061923U (en) * | 1992-06-19 | 1994-01-14 | 曙ブレーキ工業株式会社 | Seal stopper |
| CN1480027A (en) * | 2002-08-06 | 2004-03-10 | ��˹��װ�乫˾ | Thrust plug and its use method |
| JP2005207513A (en) * | 2004-01-23 | 2005-08-04 | Kayaba Ind Co Ltd | Shipping plug and port blocking method using it |
| CN101952623A (en) * | 2007-11-13 | 2011-01-19 | Kvt柯尼希有限责任公司 | Two-piece expandable sealing plug |
| CN203375084U (en) * | 2013-06-26 | 2014-01-01 | 苏州速腾电子科技有限公司 | Thread gland cover |
-
2015
- 2015-12-18 CN CN201510958805.1A patent/CN105715902B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH061923U (en) * | 1992-06-19 | 1994-01-14 | 曙ブレーキ工業株式会社 | Seal stopper |
| CN1480027A (en) * | 2002-08-06 | 2004-03-10 | ��˹��װ�乫˾ | Thrust plug and its use method |
| JP2005207513A (en) * | 2004-01-23 | 2005-08-04 | Kayaba Ind Co Ltd | Shipping plug and port blocking method using it |
| CN101952623A (en) * | 2007-11-13 | 2011-01-19 | Kvt柯尼希有限责任公司 | Two-piece expandable sealing plug |
| CN203375084U (en) * | 2013-06-26 | 2014-01-01 | 苏州速腾电子科技有限公司 | Thread gland cover |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105715902B (en) | 2019-06-25 |
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Address after: Tokyo, Japan Patentee after: KITZ Corp. Address before: Chiba County, Japan Patentee before: KITZ Corp. |