CN108495688A - The connection structure of fire-extinguishing apparatus piping - Google Patents
The connection structure of fire-extinguishing apparatus piping Download PDFInfo
- Publication number
- CN108495688A CN108495688A CN201780007903.4A CN201780007903A CN108495688A CN 108495688 A CN108495688 A CN 108495688A CN 201780007903 A CN201780007903 A CN 201780007903A CN 108495688 A CN108495688 A CN 108495688A
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- China
- Prior art keywords
- pipe fitting
- fire
- piping
- extinguishing apparatus
- connection structure
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Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C35/00—Permanently-installed equipment
- A62C35/58—Pipe-line systems
- A62C35/68—Details, e.g. of pipes or valve systems
-
- 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
- F16L33/00—Arrangements for connecting hoses to rigid members; Rigid hose connectors, i.e. single members engaging both hoses
- F16L33/02—Hose-clips
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Mechanical Engineering (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
- Joints Allowing Movement (AREA)
- Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
Abstract
The present invention provides a kind of connection structure of fire-extinguishing apparatus piping, in the case where the piping-members such as flexible pipe, connector to being set to fire-extinguishing apparatus apply excessive loads, can prevent breakage.The connection structure of fire-extinguishing apparatus piping includes：First pipe fitting (1) in a tubular form and is set to the water supply piping being connect with water supply installation；And second pipe fitting (2), in a tubular form and with the connection structure with first pipe fitting (1), it is connect with the piping (3) for being provided with sprinkler head in the inside of second pipe fitting (2) in one end of the linking part (30) for being internally provided with tubular of second pipe fitting (2), linking part (30).
Description
Technical field
The present invention relates to a kind of connection structures of pipe fitting used for fire-extinguishing equipment.
Background technology
Sprinkling fire equipment is set to mansion, shopping center etc., by storing the hopper of the water for eliminating fire, being used for
The sprinkler head of watering, the fire-extinguishing apparatus for making hopper be connected with sprinkler head are piped and for the water of hopper is defeated to sprinkler head
The equipment such as the pump sent are constituted.In the inside of fire-extinguishing apparatus piping filled with pressurized water.
Sprinkler head is mainly set to ceiling face, and the underface that roof is then set in warehouse etc. is without the building of ceiling is contour
Position.Therefore, it is layed in indoor high position for water to be delivered to the fire-extinguishing apparatus piping of sprinkler head from hopper, therefore,
Operator takes high-altitude operation vehicle and is moved to high position, and the operation of piping-member is attached while up.Cause
This, the construction of fire-extinguishing apparatus piping is the operation implemented in the unstable eminence of foot, very big to the burden of operator.
Fire-extinguishing apparatus piping makes the main piping branch being connect with hopper by multi-tap interfaces, and via metal flexibility
The flexible pipes such as piping, pitch tube are connect with sprinkler head.The caliber size of the interconnecting piece of flexible pipe and more mouthfuls of connectors mainly uses 16A
~25A, connection structure are effective tapered thread structure, are made by after threaded portion winds sealant tape, applying defined torque
It is spirally connected, and sealant tape bites as a result, obtains leakproofness between thread.
However, in above-mentioned operation, when unskilled operator carries out operation, it may occur that leakage.Leakage
Position needs to re-start operation, this is known as the reason of operating efficiency reduces.In addition, in above-mentioned operation, in order to apply rule
So that it is spirally connected under fixed torque, needs to use specific purpose tool.More specifically, as specific purpose tool use metal spanner or
Wrench makes the operation that flexible pipe is connect with more mouthfuls of connectors being set on the crown using this heavy metal tool, right
The burden of operator is very big.
In recent years, by using the quick coupling (for example, referring to patent document 1) without using screw thread, behaviour can be improved
Make efficiency and the burden of operator can be mitigated.However, the connector stated in use and because engage it is bad cause pipe deviation connect
In the case of head, a large amount of water can be to indoor discharge, to there is the risk to cause damages by floods.Therefore, have using above-mentioned
Screw connection structure can reduce because construct it is bad generate damage from a flood risk idea.
On the other hand, as after being connect from flexible pipe with more mouthfuls of connectors until ceiling base material is set during process,
Setting cable, illumination, pipeline etc. around fire-extinguishing apparatus piping.Therefore, in order not to these setting generation obstacles, flexible pipe
State to be wound as coiled type is connected with fire-extinguishing apparatus piping, and post-tensioning flexible pipe is arranged in ceiling base material, and in ceiling
Sprinkler head is fixedly installed in the specified position of base material.Among the above, when the constructions such as cable or illumination accidentally by object with scratching
Property pipe collision, or when wind flexible pipe, stretching flexible pipe come when being fixed on ceiling base material, if matching to flexible pipe or connector etc.
Pipe component applies excessive loads, then the coupling part of flexible pipe or flexible pipe and connector may occur damaged and generate leakage.Or
Person, the extent of damage are unlikely to the damaged position of leakage when being abnormal boosting or water hammer (water hammering) later,
Because the impact of internal flow may will produce leakage.
In addition, in patent document 2,71 (reference of band is arranged in coupling part in the locking portion of the connecting portion as piping
Fig. 9).Band 71 is in C fonts, will engage the insertion locking flange 74 of slit 72 by elastic deformation, but due to the end of band 71 73,73
Interval it is narrow, therefore, in the case where band 71 is accidentally embedded in flexible piping 75, existing can not fall off and engage possibility in this
Property.Particularly, in fire-extinguishing apparatus piping, it is arranged substantially in parallel with ground or ceiling due to being piped, band 71 will not be because
It is moved from recurrence, and is difficult to fall off, therefore, operator or inspection personnel may not discover.
The prior art
Patent document
Patent document 1：Japanese Unexamined Patent Publication 2015-175494 bulletins
Patent document 2：Japanese Unexamined Patent Publication 5-164277 bulletins
Invention content
Problems to be solved by the invention
Therefore, the present invention proposes in view of the above problems, it is intended that providing a kind of connection knot of fire-extinguishing apparatus piping
Structure can prevent breakage in the case where the piping-member to flexible pipe or connector etc. applies excessive loads.
The means solved the problems, such as
For achieve the above purposes, the present invention provides the connection structure of following fire-extinguishing apparatus piping.
That is, providing a kind of connection structure of fire-extinguishing apparatus piping, which is characterized in that the fire-extinguishing apparatus piping, which is set to, goes out
Fiery equipment, the connection structure that the fire-extinguishing apparatus is piped include：First pipe fitting in a tubular form and is set to and is connect with water supply installation
Water supply piping；And second pipe fitting, in a tubular form and with the connection structure with first pipe fitting, in the second pipe fitting
The linking part for being internally provided with tubular, one end of linking part the inside of second pipe fitting be provided with matching for sprinkler head
Pipe connects.
Second pipe fitting is connect via linking part with the piping for being provided with sprinkler head, due to being provided with the piping of sprinkler head
The interconnecting piece of (flexible pipe) between linking part is configured in the inside of the second pipe fitting, therefore, it is possible to protect interconnecting piece from outer
Power.In addition, in the state that the connection of the first pipe fitting and the second pipe fitting is completed, linking part can dally, and be bent or drawing
When stretching flexible pipe, if pair applying the excessive loads of distortion or bending with the interconnecting piece of linking part, since interconnecting piece is relative to second
Pipe fitting can dally, therefore, it is possible to avoid the excessive loads generated by distortion.
Moreover, between the inner circumferential of the second pipe fitting and the periphery of flexible pipe have gap, therefore, will not to flexible pipe with
The interconnecting piece of linking part applies excessive loads.Specifically, limiting the model of bending radius of flexible duct by the inner circumferential end of the second pipe fitting
It encloses, it is therefore prevented that applying excessive loads to flexible pipe.Alternatively, it is also possible to be inserted into bolster in above-mentioned gap.As buffering
Part can use the resin of rubber or softness.Alternatively, can also be real to the end for connecting side with flexible pipe of the second pipe fitting
Apply rubber coating.
As the concrete structure of the second pipe fitting and linking part, it is internally provided with first step in the second pipe fitting, with
The second step of first step engaging is set to linking part, first step and the second step in contact with or close in the state of
The locating snap ring engaged with one end of the second pipe fitting is set to the periphery of linking part.As a result, when make the second pipe fitting and first manage
Connector connect when, can only make the second pipe fitting rotate and linking part does not rotate, as described above, the first pipe fitting with second pipe
In the state of connector connection, interconnecting piece can dally.
The connection structure of first pipe fitting and the second pipe fitting is attached by helicitic texture.In addition, in addition to this, leading to
The fastened component for crossing C fonts is also able to maintain that connection status, which has holding section, which makes to be set to first
The stage portion of the periphery of pipe fitting and the stage portion for the periphery for being set to the second pipe fitting are fastened togather.
The other end of interconnecting piece can be configured to, and be protruded from the second pipe fitting to the first pipe fitting side, and be inserted into the first pipe
The inside of connector.Furthermore, it is also possible to which waterstop member is arranged in the other end in interconnecting piece.Thereby, it is possible to save previous such volume
Labour around sealant tape and time.
As above-mentioned waterstop member, the isothrausmatic waterstop member of o-ring is generally used, interconnecting piece, which is pressed into the first pipe, to be connect
Head and the load of operator can be become by squeezing the frictional resistance that is generated when waterstop member, this is that reduce one of operating efficiency is main
Reason.To mitigate the load of operator, interconnecting piece movement is set to squeeze waterstop member by being screwed into for screw thread, to mitigate operation
The load of person.In addition, in the case where multiple waterstop members are arranged, the waterstop member different by the way that size is arranged, in order to squeeze
The amount of movement of interconnecting piece needed for waterstop member shortens, and thereby, it is possible to so that the length of screw thread is shortened.
According to above structure, when unloading the second pipe fitting from the first pipe fitting, even if in waterstop member from sealing surface
In the state of disengaging, external screw thread can also be spirally connected with internal thread, therefore, even if the fluid inside piping is pressurized state,
Also it can prevent outer piping-member from taking off pipe because of the pressure of fluid.
Invention effect
As described above, according to the present invention, it is arranged second due to being provided with the piping of sprinkler head and the interconnecting piece of linking part
The inside of pipe fitting, and the interconnecting piece is protected by the second pipe fitting, therefore, it is possible to realize even if to flexible pipe, connector
In the case that equal piping-members apply excessive loads, the connection structure of damaged fire-extinguishing apparatus piping can be also prevented.
Description of the drawings
Fig. 1 is the figure for the setting state for indicating fire-extinguishing apparatus piping.
Fig. 2 is the sectional view of the connection structure of the fire-extinguishing apparatus piping of first embodiment.
Fig. 3 is the sectional view before Fig. 2 connections.
Fig. 4 is the outside drawing of more mouthfuls of connectors.
Fig. 5 (a) is the outside drawing of indicator.Fig. 5 (b) is the outside drawing from the directions arrow A of Fig. 5 (a).
Fig. 6 is the sectional view of second embodiment.
Fig. 7 is the stereogram of the fastened component of Fig. 5.
Fig. 8 is the sectional view before the connection of third embodiment.
Fig. 9 is the outside drawing for indicating previous joint structure.
Specific implementation mode
First embodiment (Fig. 1~Fig. 5)
The pipe fitting T1 of first embodiment of the invention is connected with fire-extinguishing apparatus shown in FIG. 1 piping.It is shown in FIG. 1
From the piping form of the water supply piping P to sprinkler head S of fire-extinguishing apparatus.Water supply piping P is connected with water source (not shown) and pump.Scheming
Shown in be connected on water supply piping P more mouthfuls of connectors 1 upper end connector, be set to the more of the side of more mouthfuls of connectors 1
On a connector 11 sprinkler head S is connected with via flexible joint 2 and flexible pipe 3.
Sprinkler head S is set as its top and exposes from top plate C to indoor.Top plate C is supported by ceiling base material 5, sprinkler head S
It is fixed on ceiling base material 5 by metalwork 6.Around water supply piping P, flexible pipe 3 and the top of ceiling base material 5
It is provided with pipeline (not shown), wiring, lighting apparatus.
In Fig. 1, flexible pipe 3 is the state stretched, but the rank before sprinkler head S is fixedly installed on ceiling base material 5
Section, flexible pipe 3 are wound into coiled type.Flexible pipe 3 by can free bend made of metal bellows or pitch tube constitute.
As shown in Figure 2 to 4, the pipe fitting T1 of first embodiment is connect by more mouthfuls of connectors 1 (the first pipe fitting) and flexibility
First 2 (the second pipe fittings) are constituted.More mouthfuls of connectors 1 are tubulose, and the connector 10 of upper end is connect with water supply piping P, in more mouthfuls of connectors 1
Side, connector 11 is arranged on 2~6 positions.In the present embodiment, connector 11 is disposed radially around in four portions
Position, is connected with flexible joint 2 on connector 11.
Flange shape stage portion 12 is provided in the end face of connector 11.It is adjacent to stage portion 12 and is equipped with endless groove at quarter
13.It is carved with internal thread 14 in the inside spiral shell of connector 11.Than 14 deeper inside of internal thread become sealing surface 15, aftermentioned o-ring 31,
32 are configured at sealing surface.
The periphery of more mouthfuls of connectors 1 is provided with protruding portion 17, protruding portion 17 is adjacent with endless groove 13.The outer diameter of protruding portion 17
More than the internal diameter of aftermentioned ring 41, therefore, protruding portion 17 is unable to embedded rings 41.In addition, being provided on the periphery of more mouthfuls of connectors 1
The protruding portion 18 of multiple ribbed, the protruding portion 18 of ribbed be set to from protruding portion 17 to the protruding portion 17 of adjacent connector 11 it
Between.Similarly, the protruding portion 18 of ribbed is provided with towards the upper end side of more mouthfuls of connectors 1 from connector 11.
Flexible joint 2 is tubulose, and one end spiral shell is carved with the external screw thread 21 that can be spirally connected with internal thread 14.The other end becomes handle
Portion 22 is held, peripheral cross-section shape is hexagon or octagon.Flange shape platform is provided between external screw thread 21 and handle part 22
Rank portion 23, in the state that external screw thread 21 and internal thread 14 are spirally connected, the end face of stage portion 12,23 is in contact.Outside stage portion 23
Diameter is equal with the outer diameter of stage portion 12.In addition, the outer diameter of stage portion 23 is more than the outer diameter of external screw thread 21, handle part 22.Stage portion
The end face of 23 21 side of external screw thread becomes the contact surface contacted with stage portion 12.
There is tubular linking part 30 in the inner containment of flexible joint 2.It is provided with as only on the top of linking part 30
Different two o-rings 31,32 of the size of water component, two o-rings 31,32 are contacted with above-mentioned sealing surface 15.Setting is
State o-ring 31, one end of 32 sides be set as from flexible joint 2 protrude, one end of opposite side is connect with flexible pipe 3.In flexibility
The end of pipe 3 is connected with sprinkler head S.The coupling part 34 of linking part 30 and flexible pipe 3 is contained in the inside of flexible joint 2, from
And external force is protected to it.
Flexible pipe 3 is metal flexible piping in the figure, is engaged with linking part 30 by welding.In addition, being connect in flexibility
It is formed with gap 35 between first 2 inner circumferential and the periphery of flexible pipe 3, which becomes the movable area of flexible pipe 3.Therefore,
In the stage before Jiang Duokou connectors 1 are connect with flexible joint 2 and stage after the completion of connection, even if in excessive distortion or bending
In the case that equal loads are applied to flexible pipe 3, due to limiting movable area, therefore, it is possible to prevent the breakage of coupling part 34.
The another side of linking part 30 is flange 36, and flange 36 can be with the inside for forming and being set to flexible joint 2
Step 25 engages.Step 25 forms the end face to 21 side of external screw thread of flexible joint 2.In addition, the middle section of linking part 30
Locating snap ring 37 is provided on periphery, there is locating snap ring 37 shape of the part missing of ring, locating snap ring 37 to be engaged with step 25, with
Engage the top end part of the external screw thread 21 of flexible joint 2.Through this structure, linking part 30 can be prevented de- from flexible joint 2
It falls, and flexible joint 2 can be made to dally relative to linking part 30.In addition, after external screw thread 21 and internal thread 14 are fastenedly connected,
Linking part 30 can dally relative to flexible joint 2.If locating snap ring 37 is sandwiched in the top of external screw thread 21 and more mouthfuls connect
Between first 1 step 16 and in the case of fixed, linking part 30 can also dally relative to locating snap ring 37.
Among the above, in order to protect flexible pipe 3 from excessive loads, bolster 38 can be set in gap 35 (in figure
It is represented by dashed line).The material of bolster 38 is rubber or the resin of softness, so as to be easily deformed.In addition, bolster 38 is in
Cross sectional shape is the tubular of C fonts.Opening the part of the side missing of bolster 38 as a result, makes the inner peripheral surface of bolster 38 cover
The peripheral surface of flexible pipe 3, to which bolster 38 to be inserted into gap 35.If at this point, making the outer diameter of bolster 38 than in gap 35
Diameter is slightly smaller, then bolster 38 can be made to be smoothly inserted into gap 35.In addition, in flexible joint 2 and interconnecting piece 3 either one with
When being rotated centered on axis, bolster 38 will not all become the resistance of its rotation.
As the variation of bolster 38, such as using the cylindrical member for being formed with notch from one end to another side, then
It is the identical effect of the bolster 38 of C fonts that can reach with above-mentioned section configuration.In addition, can also be constituted as bolster
For example multiple rod members of multiple components to be embedded in gap 35, or the sheet rubber of plate is rear slotting on flexible pipe 3
Enter gap 35.
Alternatively, by inner circumferential and periphery implementation rubber coating to handle part 22, flexible pipe 3 can be protected from excessive
Load.In addition to this, when making flexible joint 2 be spirally connected with internal thread 14, it may have the effect of the anti-slip part as handle part 22.
Moreover, other variations as bolster 38, keep the outer diameter of bolster 38 more slightly larger than the internal diameter in gap 35, and make
The internal diameter of bolster 38 is more slightly larger than the outer diameter of flexible pipe 3.In the state that bolster 38 is sleeved on flexible pipe 3, make bolster
38 are inserted into gap 35.The state that the peripheral surface of bolster 38 becomes being close to the inner peripheral surface in gap 35 by the elasticity of itself.This
When, there is small gap between bolster 38 and flexible pipe 3.As a result, either one in flexible joint 2 and linking part 3 with
When being rotated centered on axis, bolster 38 will not all become the resistance of its rotation.
Fig. 2 is the state that external screw thread 21 is spirally connected with internal thread 14.In this state, indicator 40 and stage portion can be made
12,23 engaging.Indicator 40 is being provided with maintaining part 42 between the two of C fonts ring 41,41, which presses and protect
Hold the side 26 of stage portion 12,23.
As shown in Fig. 5 (a), the inner edge of ring 41 is U-shaped, the top 43,43 of ring 41 be shaped generally as it is parallel, top 43
Width is roughly the same with the width of endless groove 13 or the width on top 43 is slightly less than the width of endless groove 13.The internal diameter of ring 41 is being schemed
The diameter d4 or more of endless groove 13 shown in 4.It is parallel by the way that top 43,43 to be shaped generally as, it is less than endless groove 13 in outer diameter
The position of diameter d4 can not block indicator 40.
As shown in Fig. 2, the thickness t when interval of ring 41,41 and the opposite end face of stage portion 12,23 are in contact with each other is substantially
It is identical or be slightly larger than thickness t.As a result, after operator makes internal thread 14 and external thread bolt connection, it is installed on by indicator 40
When stage portion 12,23, interference occurs for the top 43 of ring 41 and stage portion 12,23 and ring 41,41 cannot be embedded in stage portion 12,23
Situation, it is believed that be that being fastenedly connected for screw thread is insufficient.On the other hand, it is in internal thread 14 and external screw thread 21 and is fastenedly connected shape
When state, if indicator 40 to be installed on to the position of stage portion 12,23, endless groove 13 is inserted on the top 43 of ring 41, to avoid
It is interfered between main body 1.
In addition, maintaining part 42 is provided with maintaining part 42a and two maintaining part 42b, the maintaining part 42a settings are from ring 41
The farthest position in top 43, described two maintaining part 42b are arranged between maintaining part 42a and top 43.Maintaining part 42b is to press from both sides
The mode for holding the side 26 of stage portion 12,23 is oppositely arranged.In addition, 43 side of top of maintaining part 42b becomes opposite with top 43
Plane 42c.In Fig. 6 (a), is pressed by three maintaining parts (42a, 42b, 42b) and keep the platform indicated by double dot dash line
The side 26 in rank portion 12,23.One end of 43 side of top of maintaining part 42b lateral bend slightly inwardly, to prevent to be maintained at maintaining part
The stage portion 12,23 of 42 inside is detached from.In addition, ring 41,41 can prevent maintaining part 42 because vibration or due to external force from stage portion
12,23 side displacement deviates.
Indicator 40 is configured to only connect with stage portion 12,23, and indicator is provided near stage portion 12,23
40 non-mounting.More specifically, in the case where indicator 40 is installed on handle part 22, since the internal diameter of ring 41 is more than
Therefore indicator 40 if making maintaining part 42a downward, cannot be installed on by the outer diameter of the handle part 22 adjacent with stage portion 23
Handle part 22.Make maintaining part 42a upward in the case of, then indicator 40 may be positioned on handle part 22 and be configured,
But small vibration may result in indicator 40 and fall off, it is thus impossible to which indicator 40 is set to state steady in a long-term
Handle part.The case where making indicator 40 be placed in flexible piping F, is also the same, and indicator 40 is unstable and falls off.
On the other hand, wanting, in the case where the peripheral part of more mouthfuls of connectors 1 installs indicator 40, to be set to more mouthfuls of connectors
The protruding portion 17 of 1 peripheral part can hinder the setting of indicator 40.More specifically, the protruding portion being disposed adjacent with endless groove 13
17 outer diameter is more than the internal diameter of ring 41.Therefore, wanting when protruding portion 7 installs indicator 40, the top 43 of ring 41 and protrusion
Portion 7 can interfere.
In addition, want the protruding portion 18 for being provided with ribbed position install indicator 40 when, due to protruding portion 18 with
The top 43 of ring 41 is interfered, it is thus impossible to which indicator 40 to be installed on to the peripheral part of more mouthfuls of connectors 1.In this way, indicator 40
The position of stage portion 12,23, and the energy in the state that stage portion 12,23 contacts can only be installed on by ring 41 and maintaining part 42
Therefore enough installations by installing indicator 40, also can easily judge whether internal thread 14 is in external screw thread 21 from a distance
It is fastenedly connected state.
In the following, illustrating the function and effect of the present embodiment except content described above.
External screw thread 21 and internal thread 14 are parallel threads, in screw thread when being fastenedly connected completion, become being set to more mouthfuls and connect
The end face in the first step portion 12 of the end of first 1 (the first pipe fitting) and the periphery for being set to flexible joint 2 (the second pipe fitting)
Second step portion 23 end face contact state.Operator can easily verify that the fastening of screw thread by visual observation as a result,
Whether connection status is abundant.In addition, examining the stage of the connection status of piping after being fastenedly connected, pass through stage portion 12,23
Contact condition is also capable of deciding whether qualification.
Among the above, there is the indicator 40 of the side for the stage portion 12,23 for pressing and being kept in contact state.In external screw thread
21 are fastenedly connected with internal thread 14 when state that the o-ring as waterstop member is suitably squeezed, and indicator 40 can be with
Stage portion 12,23 engages.In screw thread in the case of being fastenedly connected insufficient, due to being detached between two stage portions 12,23, because
This, indicator 40 cannot engage with stage portion 12,23.When indicator 40 is installed on the state of two stage portions 12,23, sealing
Component can play a role to ensure air-tight state, and can easily verify that whether screw thread is in and be fastenedly connected state.
When indicator 40 is arranged, as shown in Fig. 2, by the way that internal thread 14 is arranged more mouthfuls of 1 sides of connector, in flexible joint 2
External screw thread 21 is arranged in side, can easily be done the charge and discharge operations of indicator 40.The installation site of indicator 40 is in being set to
The stage portion 23 of the stage portion 12 on the top of screw thread 14 and the root side for being set to external screw thread 21.The position of stage portion 12,23 is
The middle section of the connector 11 and flexible joint 2 of more mouthfuls of connectors 1.In contrast, when the setting of connector 11 in more mouthfuls of connectors 1
In the case of externally threaded, the side that flange part is then formed in more mouthfuls of connectors 1 is paid closely.Moreover, because more mouthfuls of connectors 1 have in side
Multiple connectors 11, therefore, when wherein, some connector 11 is installed indicator 40 and is also pacified in its adjacent connector 11
When filling indicator 40, the indicator 40 of both sides may interfere.Shown in Fig. 2, by stage portion 12,23 setting with more mouthfuls
When the position of the side separation of connector 1, sky appropriate can be ensured relative to the indicator 40 for being set to adjacent connector 11
Between, so as to prevent from interfering with adjacent indicator 40, therefore, it is possible to improve operability.
In addition, in Fig. 1 because of the setting position of the change such as indoor repacking sprinkler head S in the case of, may be to flexibility
Pipe 3 applies the power of distortion or bending, but the linking part 30 due to being connect with flexible pipe 3 dallies in the inside of flexible joint 2, because
This, can be avoided causing flexible pipe 3 by excessive loads and breakage because of distortion.Moreover, flexible joint 2 will not be because of flexible pipe 3
It distorts and rotates, thus, it is also possible to prevent external screw thread 21 from being loosened with internal thread 14.For the power of bending, by using gap
Bolster 38 is arranged in the inside in gap 35 in the movable area of 35 limitation flexible pipes 3, can prevent the breakage of flexible pipe 3.
In addition, according to above-mentioned structure, can prevent from applying excessive loads to the connecting portion of linking part 30 and flexible pipe 3.
Second embodiment (Fig. 6~Fig. 7)
The pipe fitting T2 of second embodiment shown in fig. 6 is by nipple 51 (the first pipe fitting) and coupling 52 (second
Pipe fitting) it constitutes.In addition, a pair part identical with the structure of first embodiment assigns identical reference numeral, and omit
It is bright.Pipe fitting T2 is the structure that nipple 51 and coupling 52 are kept by fastened component 53.
Nipple 51 is tubulose, and flange shape stage portion 12 is provided in its end face, and inside is sealing surface 15.Nipple 51
The structure of the connector 11 of more mouthfuls of connectors 1 of first embodiment can be changed into.Coupling 52 in a tubular form, is provided in one end
Flange shape stage portion 23, the other end are handle part 22.In being internally provided with big with first embodiment for coupling 52
Cause the linking part 30 of identical structure.
As shown in fig. 7, fastened component 53 makes metal plate benging and constitutes in the C fonts of the part missing of ring.Engage structure
The top 55 of part 53,55 outside lateral bends, base portion 56 protruding to the outside is provided in the position farthest away from top 55.On top
Slit 57 is equipped between 55 and base portion 56 so that the stage portion 12,23 of contact condition across the slit 57 make stage portion 12,
23 unseparated modes keep it.
When connecting pipe fitting T2, the linking part 30 being provided projectingly from coupling 52 is inserted in nipple 52.External
In the state that the end face of first 52 stage portion 23 is contacted with the end face of the stage portion 12 of nipple 51, make fastened component 53 and step
Portion 12,23 engages.Specifically, when pressing the top 55,55 of fastened component 54 to the side of stage portion 12,23, with base
Portion 56 is used as fulcrum, top 55,55 to be opened to the direction being separated from each other.Further, by fastened component 53 to stage portion 12,23
Direction pressing when, stage portion 12,23 is embedded in slit 57, and top 55,55 is returned to the original form by elasticity.Engaging
With the side of nipple 51 and coupling 52, close to configuration, stage portion 12,23 is clamped by slit 57 in the inner peripheral surface of component 53.
The connection status of nipple 51 and coupling 52 is maintained as a result,.
Preferably, the pipe fitting T2 of second embodiment is used to pass through the feelings of the pipe fitting less than first embodiment with nozzle
Condition and the low position of the pressure of internal flow.More specifically, it can be used in being piped bore in 16A or less and and water supply pipe
The position that equipment is directly connected to.
Third embodiment (Fig. 8)
The pipe fitting T3 of third embodiment shown in Fig. 8 is by nipple (nipple) 61 (the first pipe fitting) and lid
Shape nut 62 (the second pipe fitting) is constituted.In addition, a pair part identical with the structure of first embodiment assigns identical attached drawing
Label, and omit the description.Pipe fitting T3 is to replace the external screw thread of the pipe fitting T1 of first embodiment and internal thread, and utilize
Nipple constitutes the component of the first pipe fitting.
Nipple 61 is tubulose, and the one end on the right side in figure is connect by tapered thread structure with more mouthfuls of connectors 63.Spiral shell
Line connector 61 can also it is advance connect with more mouthfuls of connectors 63 in the state of be set to water supply piping P.Due to nipple 61 with
More mouthfuls of connectors 63 are connected by tapered thread structure, therefore, sealant tape or coating liquid sealant are wound in threaded portion
After be spirally connected.One end spiral shell in left side is carved with external screw thread 65, and the internal thread 64 of the external screw thread 65 and acorn nut 62 can be spirally connected,
Its inner circumferential is sealing surface 15.It is hexagon or octagonal handle part that the centre of nipple 61, which is formed as peripheral cross-section shape,
66。
Acorn nut 62 is tubulose, is carved with internal thread 64 in the inner circumferential spiral shell of the one end on right side in the figure.The one end in left side is
Handle part 22 same as the first embodiment.It is internally provided with linking part 30 in acorn nut 62, the knot of the linking part 30
Structure is roughly the same with first embodiment.In the third embodiment, it is configured in the inside of internal thread 64 and is used as waterstop member
O-ring 31,32 make o-ring thereby, it is possible to make the length of linking part 30 shorten, but can also be same as first embodiment
31, it 32 is protrusively provided from the first pipe fitting.In addition, connector T3 can also be configured to be embedded in the softwoods matter systems such as rubber in gap 35
At ring element 67.The bolster 38 illustrated in the first embodiment can also be used as ring element 67.
Bolster 38 be in be coated on flexible pipe 3 periphery state and with 3 integralization of flexible pipe.At this time, if it is desired to
Only make the left side into figure of acorn nut 62 mobile, then step 25 and the end face of bolster 38 can interfere, so as to prevent
The movement of acorn nut 62.
The explanation of reference numeral：
T1, T2, T3 pipe fitting
1, more than 63 mouthfuls of connector
2 flexible joints
3 flexible pipes
11 connectors
12,23 stage portion
13 endless grooves
14,64 internal thread
15 sealing surfaces
21,65 external screw thread
22,66 handle part
30 linking parts
31,32 o-ring
35 gaps
38 bolsters
40 indicators
41 rings
42 (42a, 42b) maintaining parts
51 nipples
52 couplings
53 fastened components
61 nipples
62 acorn nuts
Claims (13)
1. a kind of connection structure of fire-extinguishing apparatus piping, which is characterized in that
The fire-extinguishing apparatus piping is disposed on the piping of fire-extinguishing apparatus,
The connection structure of fire-extinguishing apparatus piping includes：
First pipe fitting in a tubular form and is set to the water supply piping being connect with water supply installation；And
Second pipe fitting, in a tubular form and with connection structure with first pipe fitting,
In the linking part for being internally provided with tubular of the second pipe fitting,
One end of linking part is connect in the inside of second pipe fitting with the piping for being provided with sprinkler head.
2. the connection structure of fire-extinguishing apparatus piping according to claim 1, wherein
It is provided with gap between the periphery for the piping for being provided with sprinkler head and the inner circumferential of the second pipe fitting.
3. the connection structure of fire-extinguishing apparatus piping according to claim 1 or 2, wherein
In the state that the connection of the first pipe fitting and the second pipe fitting is completed, linking part can dally.
4. the connection structure of fire-extinguishing apparatus piping described in any one of claim 1 to 3, wherein
The peripheral surface of linking part is provided with locating snap ring, locating snap ring engages with the step for the inside for being set to the second pipe fitting.
5. the connection structure of fire-extinguishing apparatus piping according to any one of claims 1 to 4, wherein
It is internally provided with first step in the second pipe fitting, the second step engaged with first step is set to linking part,
With the second step in the state of, the locating snap ring engaged with one end of the second pipe fitting is set to first step
The periphery of linking part.
6. the connection structure of fire-extinguishing apparatus piping according to any one of claims 1 to 5, wherein
First pipe fitting is connect with the second pipe fitting by helicitic texture.
7. the connection structure being piped according to fire-extinguishing apparatus according to any one of claims 1 to 6, wherein
There is the connection structure of the fire-extinguishing apparatus piping fastened component of C fonts, the fastened component to have holding section, the engaging
Portion makes to be set to the stage portion of the periphery of the first pipe fitting and the stage portion for the periphery for being set to the second pipe fitting is fastened togather.
8. the connection structure of fire-extinguishing apparatus piping according to any one of claims 1 to 7, wherein
The other end of linking part is protruded from the second pipe fitting to the first pipe fitting side, and is inserted into the inside of the first pipe fitting.
9. the connection structure of fire-extinguishing apparatus piping according to claim 8, wherein
The other end of linking part is provided with waterstop member.
10. the connection structure being piped according to fire-extinguishing apparatus according to any one of claims 1 to 9, wherein
It is provided with internal thread on the first pipe fitting, the outer spiral shell that can be spirally connected with the internal thread is provided on the second pipe fitting
Line.
11. the connection structure being piped according to fire-extinguishing apparatus according to any one of claims 1 to 10, wherein
In the second pipe fitting, rubber coating is implemented in the end of pair side connected with the piping for being provided with sprinkler head.
12. the connection structure of the fire-extinguishing apparatus piping according to any one of claim 2~11, wherein
It is inserted into bolster in the gap.
13. the connection structure of the fire-extinguishing apparatus piping according to any one of claim 1 or claim 1~12, wherein
The piping for being connected with the sprinkler head is metal bellows or pitch tube.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2016/052987 WO2017134736A1 (en) | 2016-02-02 | 2016-02-02 | Fire extinguishing system pipe connection structure and connection method therefor |
| JPPCT/JP2016/052987 | 2016-02-02 | ||
| JP2016215842 | 2016-11-04 | ||
| JP2016-215842 | 2016-11-04 | ||
| PCT/JP2017/003516 WO2017135271A1 (en) | 2016-02-02 | 2017-02-01 | Fire extinguishing system pipe connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108495688A true CN108495688A (en) | 2018-09-04 |
Family
ID=59499781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780007903.4A Pending CN108495688A (en) | 2016-02-02 | 2017-02-01 | The connection structure of fire-extinguishing apparatus piping |
Country Status (4)
| Country | Link |
|---|---|
| JP (2) | JPWO2017135271A1 (en) |
| KR (1) | KR20180111778A (en) |
| CN (1) | CN108495688A (en) |
| WO (1) | WO2017135271A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI768003B (en) * | 2017-03-07 | 2022-06-21 | 美商鐵鎖公司 | Hose assembly and method of making a hose assembly |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108426112A (en) * | 2018-05-17 | 2018-08-21 | 海宁市晟达消防设备有限公司 | A kind of welding point for fixing fire-fighting bellows |
| JP7160709B2 (en) * | 2019-02-05 | 2022-10-25 | 芝浦機械株式会社 | locking device |
| CN112870611B (en) * | 2021-01-27 | 2022-02-15 | 浙江德运科技有限公司 | Fire-fighting system and fire-fighting method thereof |
| JP7241443B1 (en) * | 2022-05-18 | 2023-03-17 | トーフレ株式会社 | Piping structure and method for absorbing torsion of piping |
| JP7203468B1 (en) | 2022-05-18 | 2023-01-13 | トーフレ株式会社 | Piping equipment that absorbs joint structure and torsion of piping |
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| JPH05164277A (en) * | 1991-12-12 | 1993-06-29 | Harman Co Ltd | Pipe joint |
| JPH09217871A (en) * | 1996-02-09 | 1997-08-19 | Hotsuto Kk | Connection structure for piping member |
| JP2005279200A (en) * | 2004-03-29 | 2005-10-13 | Showarasenkan Seisakusho Co Ltd | Connecting structure of sprinkler winding pipe, and sprinkler winding pipe |
| JP2007330303A (en) * | 2006-06-12 | 2007-12-27 | Yamato Protec Co | Connecting structure of flexible tube for sprinkler |
| CN101520116A (en) * | 2009-02-25 | 2009-09-02 | 张康盛 | Corrugated pipe joint |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3682666B2 (en) * | 1996-04-30 | 2005-08-10 | ホーチキ株式会社 | Sprinkler unwinding pipe structure |
| JP2001104507A (en) * | 1999-10-08 | 2001-04-17 | Nippon Kokan Pipe Fittings Mfg Co Ltd | Device for attaching springkler head |
| JP6446629B2 (en) * | 2014-03-18 | 2019-01-09 | 丸一株式会社 | Tube connection structure |
-
2017
- 2017-02-01 WO PCT/JP2017/003516 patent/WO2017135271A1/en active Application Filing
- 2017-02-01 CN CN201780007903.4A patent/CN108495688A/en active Pending
- 2017-02-01 JP JP2017565569A patent/JPWO2017135271A1/en active Pending
- 2017-02-01 KR KR1020187017376A patent/KR20180111778A/en unknown
-
2019
- 2019-12-23 JP JP2019004863U patent/JP3225421U/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05164277A (en) * | 1991-12-12 | 1993-06-29 | Harman Co Ltd | Pipe joint |
| JPH09217871A (en) * | 1996-02-09 | 1997-08-19 | Hotsuto Kk | Connection structure for piping member |
| JP2005279200A (en) * | 2004-03-29 | 2005-10-13 | Showarasenkan Seisakusho Co Ltd | Connecting structure of sprinkler winding pipe, and sprinkler winding pipe |
| JP2007330303A (en) * | 2006-06-12 | 2007-12-27 | Yamato Protec Co | Connecting structure of flexible tube for sprinkler |
| CN101520116A (en) * | 2009-02-25 | 2009-09-02 | 张康盛 | Corrugated pipe joint |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI768003B (en) * | 2017-03-07 | 2022-06-21 | 美商鐵鎖公司 | Hose assembly and method of making a hose assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2017135271A1 (en) | 2018-11-29 |
| KR20180111778A (en) | 2018-10-11 |
| JP3225421U (en) | 2020-03-05 |
| WO2017135271A1 (en) | 2017-08-10 |
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Application publication date: 20180904 |