CN106195489B - The combination accessory of fire hose - Google Patents
The combination accessory of fire hose Download PDFInfo
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- CN106195489B CN106195489B CN201610730569.2A CN201610730569A CN106195489B CN 106195489 B CN106195489 B CN 106195489B CN 201610730569 A CN201610730569 A CN 201610730569A CN 106195489 B CN106195489 B CN 106195489B
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- accessory
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- undertaking
- out collar
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- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
Outer peripheral surface of the combination accessory of fire hose of the invention in sliding cylinder portion (25) is provided with main body side non-slip groove (25a), the both ends of the inner peripheral surface of throw-out collar (22) are provided with throw-out collar side non-slip groove (22c), gap is equipped between the inner peripheral surface of throw-out collar (22) and the outer peripheral surface in sliding cylinder portion, the releasing of accessory is combined caused by barrier when can prevent because drawing fire hose, and without the trouble of additional additional component, previous excellent operability is not damaged, can be more efficient and safely carries out fire-fighting operation.
Description
The application be entitled " the combination accessory of fire hose ", the applying date be on March 23rd, 2012, application No. is
201210085819.3 application for a patent for invention divisional application.
Technical field
The present invention relates to a kind of combination accessories of fire hose, more particularly to a kind of fire-fighting for having the anti-locking mechanism that falls off
The combination accessory of water band, the danger of the anti-locking mechanism for avoiding fire hose from generating because of falling off that falls off.
Background technique
It when fire brigade carries out fire-fighting operation, needs that fire hose is made to extend to fiery point from fire fighting truck, reliably conveying is gone out
Fiery agent.
The outlet of fire hose and fire fighting truck, fire hose and discharge water nozzle and fire hose are matched by combining each other
Part connection.It is sent to the nozzle that discharges water by them from fire fighting truck by the water for receiving pressurization or foam, then releases the water or bubble
Foam is for fire extinguishing etc..
There are plug-in type, screw-type and torsional mode in the combination accessory of Japan's sale.Plug-type raised path between farm fields open country formula, which combines, matches
Part since structure is simple, light-weight, assembly and disassembly operability it is excellent, so most of fire brigade obtain using.
The structure of Figure 12~Figure 14 expression raised path between farm fields open country formula combination accessory.
It is made of in conjunction with accessory undertaking accessory 10 and insertion accessory 20.
Insertion accessory 20 is made of insertion fitment body 21 and throw-out collar 22.It is useful in the side setting of insertion fitment body 21
In the locking cyclic annular protrusion 23 of the undertaking accessory pawl 17 with undertaking accessory 10.Insertion fitment body 21 another party be provided with by
The insertion accessory water band connection portion 24 that serrated crosssection is constituted.Throw-out collar 22 is by the locking solution pushed open for that will accept accessory pawl 17
Except being constituted with cylindrical portion 22a and with the flange shape operation portion 22b of finger press.It is locking to release the outer diameter with cylindrical portion 22a than inserting
The outer diameter for entering the cyclic annular protrusion 23 of fitment body 21 is somewhat larger.
Accessory 10 is accepted by undertaking fitment body 11, undertaking accessory dead ring 13, pawl seat 14, undertaking accessory pawl 17, pawl bullet
Spring 15, rubber strip 16 and O-ring seals 18 are constituted.
It accepts accessory dead ring 13, pawl seat 14, accept accessory pawl 17, latch spring 15, rubber strip 16 and O-ring seals 18
It configures in the side for accepting fitment body 11.The another party for accepting fitment body 11 is provided with holding of being made of serrated crosssection
Meet accessory water band connection portion 12.
Multiple undertaking accessory pawls 17 are arranged in circumferencial direction by equal intervals, and towards the front end of undertaking accessory 10, (side's is opened
Mouthful) there is inclined-plane.In addition, accepting accessory pawl 17 can radially slide along pawl seat 14.Latch spring 15 is always towards center position pair
It accepts accessory pawl 17 and applies elastic force.
When that will be inserted into the insertion undertaking accessory 10 of accessory 20, it is inserted into the side of the front end (opening of a side) of fitment body 21
Edge encounters the inclined-plane for accepting accessory pawl 17, and the power of latch spring 15 is overcome to make to accept the retrogressing of accessory pawl 17 (moving outward).By
This, the front end of insertion fitment body 21 proceeds to the limiting section 19 for accepting fitment body 11, is inserted into the outer peripheral surface of fitment body 21
It is sealed with the inner peripheral surface for accepting fitment body 11 by O-ring seals 18.At this point, the cyclic annular protrusion 23 of insertion fitment body 21 is crossed
The position of accessory pawl 17 is accepted, therefore, accessory pawl 17 is accepted and is exerted a force by the power of latch spring 15 towards center position, to return to
Position originally completes to combine.
When releasing the accessory combined, make throw-out collar 22 towards direction, the i.e. insertion fitment body 21 for accepting accessory 10
Cyclic annular protrusion 23 direction it is mobile.By keeping throw-out collar 22 mobile, locking releasing cylindrical portion 22a, which encounters, accepts accessory pawl 17
Inclined-plane will be accepted accessory pawl 17 on one side and be pushed open, proceeds to the cyclic annular protrusion 23 of insertion accessory 20 on one side.Thus accessory pawl will be accepted
17 with the locking elimination of cyclic annular protrusion 23, release and combine.
In this way, formula combination accessory in raised path between farm fields open country simply can be combined and be released.On the other hand, although raised path between farm fields open country formula combination accessory has
Have good operability, but not to the mechanism that is fixed of throw-out collar 22 for the bonding state for releasing accessory, accordingly, there exist because
Hook when impact, water band are mobile etc. and keep throw-out collar 22 mobile towards the direction of releasing, make to accept accessory pawl 17 and disengage, water band connection
A possibility that portion 24 is detached from.In fact, in the fire-fighting operation of scene of fire, the combination accessory of discharge water sometimes nozzle and water band is de-
It opens, or because the throw-out collar 22 when water band extends to the impact of combination accessory, at step when the extension of water band in conjunction with accessory is hooked in
Step and make water band connection portion 24 disengage.In such occasion, water is sent to be interrupted, causes obstacle to fire-fighting operation.Moreover, also
There are the danger that the water band that engaging portion has disengaged dapped and brought to the people of surrounding harm under the action of water flow.
In addition, also generating in training, fire-fighting operation will release in the case where not releasing the pressure of water band in conjunction with accessory
Mistake.
In short, if just by water, the fire hose of pressurized with compressed air combination accessory because external reason, people operation
Mistake and released accidentally, then obstacle can be not only caused to fire-fighting operation, and sometimes can also to operator, around people
Bring harm.It is therefore prevented that the problem is the project of fire-fighting.
In recent years, the fire fighting truck for carrying compressed air foam fire-extinguishing system (CAFS) is continuously increased.CAFS vehicle can be simple
Ground switches the radiation of water and foam, more copes with various fire than previous pump truck, can expeditiously put out a fire.But
On the other hand, CAFS vehicle is due to using compressed-air foam, so having injection in the occasion relieved accidentally in conjunction with accessory
There is the compressed-air foam of many energy.Compressed-air foam has a possibility that generating bigger harm to surrounding compared to water.
It is therefore prevented that the combination accessory of fire hose is released to the task of top priority accidentally.
Patent document 1, which discloses, to be prevented from leading to the side for combining the case where being released accidentally due to throw-out collar 22 and barrier hook
Method.That is, there is the The lid component of the outer diameter bigger than the outer diameter of throw-out collar 22 in insertion accessory 20 and the periphery installation for accepting accessory 10,
So that throw-out collar 22 cannot simply with ground, bar contact.
In addition, disclosing to inject the locking component for limiting the movement of throw-out collar 22 and insert in patent document 2, patent document 3
Enter between the throw-out collar 22 of accessory 20 and the dead ring of undertaking accessory 10 and prevents the method for combining accessory to be released accidentally.
Citation
Patent document
Patent document 1: No. 3742003 bulletins of Japan Patent
Patent document 2: Japanese Unexamined Patent Publication 2000-329280 bulletin
Patent document 3: Japanese Unexamined Patent Publication 2004-11860 bulletin
Summary of the invention
Problems to be solved by the invention
However, being increased in conjunction with the weight and volume of accessory, operability is damaged, and cost also increases according to patent document 1
Add.In addition, the false dismissal combined caused by because of mistake cannot be prevented.
In addition, according to patent document 2, patent document 3, although can prevent in the movement of water band because throw-out collar is hooked in barrier
The disengagement of combination accessory for hindering object and generating, but disengaged accidentally caused by cannot preventing because of maloperation.In addition, installation locking structure
Part is very bothersome for the firefighting activities raced against time, and damages to the operability of water band.In addition, it may also happen that forgetting to pacify
Fill the mistake of locking component.
The invention solves project be to solve above-mentioned problem of the prior art, a kind of fire hose is provided and is used in conjunction with matching
Part, the fire hose combine the releasing of accessory caused by using barrier when combining accessory that can prevent because drawing fire hose,
And without the trouble of additional additional component, previous excellent operability is not damaged, can be more efficient and be safely carried out
Fire-fighting operation.
Means for solving the problems
A kind of combination accessory of fire hose is made of insertion accessory and undertaking accessory, and above-mentioned insertion accessory has insertion
Fitment body and throw-out collar, the insertion fitment body are provided with cyclic annular protrusion on a side, insertion accessory are provided on another party
With water band connection portion, it is provided with sliding cylinder portion between water band connection portion in above-mentioned cyclic annular protrusion and above-mentioned insertion accessory, it should
Throw-out collar can slide in above-mentioned sliding cylinder portion；There is above-mentioned undertaking accessory undertaking fitment body and latch spring, the undertaking to match
Part main body is provided on a side accepts accessory pawl, is provided on another party and accepts accessory water band connection portion；The latch spring
It exerts a force towards the direction of the central axis of above-mentioned undertaking fitment body to above-mentioned undertaking accessory pawl；From the one of above-mentioned undertaking fitment body
The above-mentioned cyclic annular protrusion of side's insertion, until crossing the position of above-mentioned undertaking accessory pawl, thus in conjunction with above-mentioned insertion accessory with it is upper
Undertaking accessory is stated, so that above-mentioned throw-out collar is slided and is inserted into above-mentioned undertaking accessory along above-mentioned sliding cylinder portion, with above-mentioned undertaking accessory
The locking releasing of pawl is abutted with inclined-plane, above-mentioned locking releasing inclined-plane is pushed by above-mentioned throw-out collar, thus by above-mentioned undertaking accessory pawl
Push open outward, release the locking of above-mentioned undertaking accessory pawl and above-mentioned cyclic annular protrusion, thus release above-mentioned insertion accessory with it is above-mentioned
Accept the combination of accessory, it is characterised in that: the outer peripheral surface in above-mentioned sliding cylinder portion is provided with main body side non-slip groove, pushes away above-mentioned
The both ends of the inner peripheral surface of ring are provided with throw-out collar side non-slip groove, above-mentioned throw-out collar above-mentioned inner peripheral surface and above-mentioned sliding cylinder portion it is upper
It states and is equipped with gap between outer peripheral surface.
The effect of invention
As indicated above, the combination accessory of fire hose according to the present invention can maintain previous combination
While the excellent operability of accessory, the disengagement that accessory is combined caused by because of water band barrier on the move is prevented.As a result,
Dapping for water band waits danger caused by can be avoided the careless disengagement because of combination accessory, can implement safer, rapid
Firefighting activities.
Detailed description of the invention
Fig. 1 is the half sectional view for the state for having disengaged the combination accessory of the fire hose of one embodiment of the present of invention.
Fig. 2 is the half sectional view for making the state for combining accessory to combine.
Fig. 3 is the cross-sectional view of a main portion for combining accessory.
Fig. 4 is the half sectional view that the throw-out collar of accessory is combined for this.
Fig. 5 is to indicate that this combines the cross-sectional view of a main portion of the action state of accessory.
Fig. 6 is the half sectional view of the insertion accessory of the combination accessory of the fire hose for another embodiment of the present invention.
Fig. 7 is the curve graph of the pressure for indicating the fire hose and the relationship of axial pulling force.
Fig. 8 is the locking locking and the ideograph of the power relationship released of the combination accessory about the present embodiment.
Fig. 9 is the song for indicating the measured value of releasing power of the combination accessory relative to previous combination accessory and the present embodiment
Line chart.
Figure 10 be indicate by people release combine accessory it is locking when maximum refer to power measured value figure.
Figure 11 is the figure for indicating the situation of the releasing of combination accessory of previous combination accessory and the present embodiment.
Figure 12 is the half sectional view for the state for having disengaged the combination accessory of previous fire hose.
Figure 13 is the half sectional view for making the state for combining accessory to combine.
Figure 14 is the enlarged drawing for combining the undertaking accessory pawl of accessory.
The explanation of symbol
10 accept accessory
11 accept fitment body
12 accept accessory water band connection portion
15 latch springs
17 accept accessory pawl
Inclined-plane is used in the locking releasing of 17a
17b protrusion
20 insertion accessories
21 insertion fitment bodies
22 throw-out collars
23 cyclic annular protrusions
23a is inserted into accessory water band connection portion side end face
The inclined-plane 23b
Slot is used in the locking locking of 23c
24 insertion accessory water band connection portions
25 sliding cylinder portions
25a main body side non-slip groove
25b keyway
Specific embodiment
The combination accessory of the fire hose of 1st embodiment of the invention is made of insertion accessory 20 and undertaking accessory 10,
Above-mentioned insertion accessory 20 has insertion fitment body 21 and throw-out collar 22；The insertion fitment body 21 is provided with cyclic annular prominent on a side
Portion 23 is provided with insertion accessory water band connection portion 24 on another party, uses in above-mentioned cyclic annular protrusion 23 with above-mentioned insertion accessory
It is provided with sliding cylinder portion 25 between water band connection portion 24, which can slide in above-mentioned sliding cylinder portion 25；It is above-mentioned
Accepting accessory 10 has undertaking fitment body 11 and latch spring 15；The undertaking fitment body 11 is provided with undertaking accessory on a side
Pawl 17, is provided on another party and accepts accessory water band connection portion 12, and the latch spring 15 is towards above-mentioned undertaking fitment body 11
The direction of central axis X 1 exerts a force to above-mentioned undertaking accessory pawl 17；Above-mentioned ring-type is inserted into from a side of above-mentioned undertaking fitment body 11
Protrusion 23, until crossing the position of above-mentioned undertaking accessory pawl 17, to match in conjunction with above-mentioned insertion accessory 20 with above-mentioned undertaking
Part 10 makes above-mentioned throw-out collar 22 slide and be inserted into above-mentioned undertaking accessory 10 along above-mentioned sliding cylinder portion 25, with above-mentioned undertaking accessory
The locking releasing of pawl 17 is abutted with inclined-plane 17a, above-mentioned locking releasing inclined-plane 17a is pushed by above-mentioned throw-out collar 22, thus by above-mentioned
It accepts accessory pawl 17 to push open outward, the locking of above-mentioned undertaking accessory pawl 17 and above-mentioned cyclic annular protrusion 23 is released, thus in releasing
The combination for stating insertion accessory 20 and above-mentioned undertaking accessory 10, in the combination accessory of the fire hose constituted in such a way,
Outer peripheral surface in above-mentioned sliding cylinder portion 25 is provided with main body side non-slip groove 25a, sets at the both ends of the inner peripheral surface of above-mentioned throw-out collar 22
Be equipped with throw-out collar side non-slip groove 22c, above-mentioned throw-out collar 22 above-mentioned inner peripheral surface and above-mentioned sliding cylinder portion 25 above-mentioned outer peripheral surface it
Between be provided with gap.According to the present embodiment, due to existing between the inner circumferential of throw-out collar 22 and the periphery of insertion fitment body 21
Gap, therefore, if throw-out collar 22 and barrier hook and lead to a side side stress, a side of the front end of throw-out collar 22 floats, another
Side bites the periphery of insertion fitment body 21.In addition, also there is a phenomenon where identical at the rear portion of throw-out collar 22.So, due to
The outer peripheral surface in sliding cylinder portion 25 is formed with main body side non-slip groove 25a, is formed with throw-out collar side at the both ends of the inner peripheral surface of throw-out collar 22
Therefore non-slip groove 22c can more reliably carry out throw-out collar 22 and be inserted into the locking of fitment body 21, be applied in the barrier of a side
The power of object is hindered to generate anti-skidding effect.The careless disengagement that thereby, it is possible to prevent from combining accessory caused by because of barrier.
In the combination accessory of the fire hose of the 2nd embodiment of the invention in the 1st embodiment, by main body side non-slip groove
25a or throw-out collar side non-slip groove 22c are formed as triangle, trapezoidal or wavy cross sectional shape.According to the present embodiment, can more may be used
It prevents from disengaging caused by because of external hook by ground.
In the combination accessory of the fire hose of the 3rd embodiment of the invention in the 1st or the 2nd embodiment, it is formed with cross
The keyway 25b for passing through main body side non-slip groove 25a is more than the width of aforementioned body side non-slip groove 25a by the both ends of above-mentioned keyway 25b
Mode is set up.According to the present embodiment, the occasion removed in sand, the dust that will be attached to main body side non-slip groove 25a, is being incited somebody to action
Brush, cloth etc. move brush, cloth etc. circumferentially in the state of being pressed against slot.In this way, by sand, dust from main body side non-slip groove 25a
It is scavenged into keyway 25b, can easily remove sand, dust.
Embodiment
In the following, illustrating the combination accessory of the fire hose of one embodiment of the present of invention with reference to the accompanying drawings.
Fig. 1 is the half-sectional of the state (but throw-out collar not shown) for having disengaged the combination accessory of the fire hose of the present embodiment
View, Fig. 2 are the half sectional view for the state for combining the combination accessory of the fire hose of the embodiment, and Fig. 3 is the embodiment
Fire hose combination accessory cross-sectional view of a main portion, Fig. 4 be for the embodiment fire hose combination accessory throw-out collar
Half sectional view, Fig. 5 be indicate the embodiment fire hose combination accessory action state cross-sectional view of a main portion.Moreover,
Same symbol is marked to the component of previous example identical function, and omits a part of explanation.
The combination accessory of the fire hose of the present embodiment is made of insertion accessory 20 and undertaking accessory 10.
Insertion fitment body 21 is provided with cyclic annular protrusion 23 on a side, and insertion accessory water band is provided on another party
Interconnecting piece 24.Insertion fitment body 21 is provided with sliding cylinder between water band connection portion 24 in cyclic annular protrusion 23 and insertion accessory
Portion 25.
It is slided in the sliding cylinder portion 25 that throw-out collar 22 shown in Fig. 4 can be shown in Fig. 1.
It accepts fitment body 11 and is provided with undertaking accessory pawl 17 on a side, be provided on another party and accept accessory water
Band connection portion 12.The direction of the latch spring 15 towards the central axis X 1 for accepting fitment body 11 is applied by above-mentioned undertaking accessory pawl 17
Power.
As shown in Fig. 2, for insertion accessory 20 and accessory 10 is accepted, from the side opening insertion ring for accepting fitment body 11
Shape protrusion 23, until crossing the position for accepting accessory pawl 17.That is, the cyclic annular protrusion of the front end in insertion fitment body 21
23 meet the locking releasing inclined-plane 17a for accepting accessory pawl 17, overcome the power of latch spring 15, make to accept the retrogressing of accessory pawl 17.By
This, the front end of cyclic annular protrusion 23 advances to the limiting section 19 for accepting fitment body 11, is sealed by O-ring seals 18.At this point,
The cyclic annular protrusion 23 of insertion fitment body 21, which is crossed, accepts accessory pawl 17, therefore, accepts accessory pawl 17 in the power of latch spring 15
Advance under effect towards the direction of central axis X 1, back to original position.It is inserted into the cyclic annular protrusion 23 of fitment body 21 as a result,
Accessory pawl 17 is locking with accepting, and completes to combine.
In the occasion for the combination that release insertion accessory 20 and undertaking accessory 10, slide throw-out collar 22 along sliding cylinder portion 25
And be inserted into and accept in accessory 10, and abutted with the locking releasing for accepting accessory pawl 17 with inclined-plane 17a, locking solution is pushed by throw-out collar 22
It is pushed open outward except accessory pawl 17 with inclined-plane 17a, thus will be accepted, releases and accept the locking of accessory pawl 17 and ring-type protrusion 23.
The combination accessory of the fire hose of the present embodiment is in the insertion accessory water band connection portion side end face of cyclic annular protrusion 23
It is provided with the locking locking slot 23c for foring inclined-plane 23b on 23a, is provided on accepting accessory pawl 17 and is abutted with inclined-plane 23b
Protrusion 17b.
Locking locking is in 0 ° of < α relative to the angle [alpha] of the central axis X 2 of insertion accessory 20 with the inclined-plane 23b of slot 23c
The range that 90 ° of <, the present embodiment are set as 45 °.In addition, being also set as and locking lock with the inclined-plane of the inclined-plane 23b protrusion 17b abutted
Surely with the identical angle of angle [alpha] of the inclined-plane 23b of slot 23c.
When locking releasing is β relative to the angle of the central axis X 2 of insertion fitment body 21 with inclined-plane 17a, if β <
α。
Accessory pawl 17 is accepted for 3 to be arranged in the circumferential direction for accepting accessory 10 by equal intervals.Accessory pawl 17 is accepted towards undertaking
There is the entrance of accessory 10 locking release to use inclined-plane 17a, in addition, can radially slide along pawl seat 14.15 pairs of latch spring undertakings
Accessory pawl 17 applies always the power mobile towards the direction of central axis X 2.
If water band is pressurized, it is inserted into accessory 20 and accepts accessory 10 towards the movement of the direction of disengagement.Then, by locking locking
The inclined-plane 23b formd with slot 23c is mutually twisted with the inclined-plane formed by the protrusion 17b being formed on undertaking accessory pawl 17,
Bonding state is locked.
In the state that water band is not applied to pressure, as in the past, with finger towards accept accessory 10 direction, i.e. insertion
The direction of the cyclic annular protrusion 23 of fitment body 21 pushes the flange shape operation portion 22b of throw-out collar 22.In this way, the card of throw-out collar 22
Determine releasing cylindrical portion 22a to encounter by being formed on the inclined-plane accepting the protrusion 17b on accessory pawl 17 and being formed, will accept on one side
Accessory pawl 17 is pushed open, proceeds to the cyclic annular protrusion 23 of insertion accessory 20 on one side.It thereby eliminates undertaking accessory pawl 17 and ring-type is prominent
The hook in portion 23 disengages the accessory combined.
As water band it is non-pressurised when combination accessory disengagement countermeasure, in the locking releasing cylindrical portion 22a of throw-out collar 22
Inner peripheral surface both ends, be machined with the throw-out collar side non-slip groove 22c formed by fine slot.In the sliding circle of insertion fitment body 21
On the outer peripheral surface of canister portion 25, the main body side non-slip groove 25a formed by fine slot machined.
As shown in figure 5, if the flange shape operation portion 22b of throw-out collar 22 hooks barrier, throw-out collar 22 is in a side side stress
State, then a side of the front end of locking releasing cylindrical portion 22a floats, and another party bites the periphery of insertion fitment body 21.Separately
Outside, also there is a phenomenon where same at the rear portion of locking releasing cylindrical portion 22a.Therefore, if forming throw-out collar side non-slip groove 22c, main body
Side non-slip groove 25a, then the inner circumferential of locking releasing cylindrical portion 22a can be mutually locking with insertion fitment body 21.It is applied in
The power of the barrier of one side generates anti-skidding effect.Thereby, it is possible to prevent from combining the careless de- of accessory caused by because of barrier
It opens.
Fig. 6 indicates the combination accessory of the fire hose of another embodiment of the present invention.
Fig. 6 is the half sectional view of the insertion accessory of the combination accessory of the fire hose for the present embodiment, and expression removes
The state of throw-out collar.Throw-out collar 22 and undertaking accessory 10 are same as the previously described embodiments, therefore, omit the description.In addition, for existing skill
The component of art example identical function marks the same symbol, and omits a part of explanation.
In the present embodiment, it is formed with the keyway 25b for traversing a plurality of main body side non-slip groove 25a, it is super with the both ends of keyway 25b
The mode for crossing the width of main body side non-slip groove 25a is set up.
In the occasion that will be attached to the sand of main body side non-slip groove 25a, dust removes, will brush, cloth etc. presses against slot
In the state of move brush, cloth etc. circumferentially.In this way, sand, dust are scavenged into keyway 25b from main body side non-slip groove 25a,
Easily sand, dust can be removed.
Fig. 7 indicates the relationship for the pulling force that water is applied with pressure (discharge water pressure) with the axial direction in water band.The pulling force makes
The direction effect disengaged in conjunction with accessory.The pressure that discharges water is generally 0.3Mpa or more.Nominal 65mm and 50mm corresponding with the pressure
The pulling force of water band be respectively 720N and 1100N or more.The inclined-plane 23b formed by locking locking slot 23c with by being formed on
It accepts the inclined-plane that the protrusion 17b on accessory pawl 17 is formed to be mutually twisted, pulling force when so as to pressurize using the water band will
The mutual bonding state locking of accessory.
Fig. 8 shows the ideographs of the power relationship about the locking locking and releasing for combining accessory.F1 is adding by water band
Press the pulling force generated.F2 is the power generated by the component of F1.The power keeps pawl mobile towards the direction of central axis X2, that is, the power plays
Effect is not to understand except locking.F4 is the power being subject to from throw-out collar 22.In addition, F3 is the component of F4, play a role locking to release.
Balance is kept when F3 is equal with F2.If setting central axis of the α as the inclined-plane 23b of locking locking slot 23c relative to insertion accessory 20
The angle of line X2, then the angle [alpha] of inclined-plane 23b can be processed to 0 °~90 ° of any angle.In addition, if setting β as locking releasing
Angle with inclined-plane 17a relative to the central axis X 2 of insertion fitment body 21, then locking releasing are with the angle beta of inclined-plane 17a
Centainly.Herein, pawl accompanies by the power of F2 in the distance for moving radially L2 with this, overcomes the power of F1, and cyclic annular protrusion 23 is in axis
To the distance of mobile L1.At this point, becoming F1 × L1=F2 × L2 as amount of work.In addition, due to L1/L2=tan (90- α),
Therefore, the relationship of each power and angle is as follows.
F2/F1=tan (90- α) ... formula (1)
F4/F3=tan β ... formula (2)
Equally, F3=F2tan β=a (constant), therefore,
F4=aF1tan (90- α) ... formula (3)
As formula (3), by changing the angle [alpha] of inclined-plane 23b, make the size variation of the releasing power under certain pressure F1.
The slot of the not no locking of previous combination accessory, therefore α is 90 °.Therefore, tan (90- α)=0, F4=0.That is, according to previous
Structure, even if in the state of being applied with pressure, if it exists for overcoming the power of latch spring 15 and the frictional resistance of locking side
Power can then release combination.
On the other hand, if α is 0 °, tan (90- α) becomes infinity, releasing institute unrelated with the internal pressure of water band, locking
The power F4 needed becomes infinity.In this way, corresponding releasing power determines if suitably setting the angle [alpha] of inclined-plane 23b.
If the releasing power (including latch spring power and frictional force) of the combination accessory under minimum radiation pressure is set the finger than people
Power is bigger, even if then there are maloperations, also can be avoided and is released from accidentally in conjunction with accessory.In addition, when water band is being pressurized
When moving under state, even if being hooked in barrier, the combination of accessory will not be disengaged simply.
In addition, only by above-mentioned countermeasure, it, cannot be using the pressure of water band in conjunction with accessory in the state that water band is not pressurized
It is locked, it is thus impossible to prevent from leading to that accessory is combined to disengage on the move because of barrier.Therefore, in the locking of throw-out collar 22
The both ends of the inner peripheral surface with cylindrical portion 22a are released, the throw-out collar side non-slip groove 22c formed by fine slot is processed.In insertion accessory
The main body side non-slip groove 25a formed by fine slot is formed on the outer peripheral surface in the sliding cylinder portion 25 of main body 21.
In people to the occasion released in conjunction with accessory, bimanual finger equably pushes the flange shape operation of throw-out collar 22
Portion 22b.In contrast, the occasion of barrier is hooked in the flange shape operation portion 22b of throw-out collar 22, flange shape operation portion 22b's
One side side stress.Due to the inner circumferential of cylindrical portion 22a of the locking releasing in throw-out collar 22 and it is inserted between the periphery of fitment body 21
There are the gaps of very little, and therefore, if becoming the stress of a side, as shown in Figure 5, locking release uses cylindrical portion 22a
A side of front end float, another party bites the periphery of insertion fitment body 21.In addition, locking release with after cylindrical portion 22a
Also there is a phenomenon where same in portion.Therefore, by forming main body side non-slip groove 25a, the end of locking releasing cylindrical portion 22a can be made
Face is locking, but by forming throw-out collar side non-slip groove 22c at the both ends of the locking releasing inner peripheral surface of cylindrical portion 22a, can more may be used
Mutually locking is carried out by ground, the power for being applied to the barrier of a side generates anti-skidding effect.Therefore, it can prevent because of barrier
The caused careless disengagement in conjunction with accessory.
Fig. 9 indicates the measured value of the releasing power of the combination accessory relative to previous combination accessory and the present embodiment.
In order to confirm serviceability of the invention, the angle [alpha] that there is 45 ° of locking locking with the inclined-plane 23b of slot 23c is manufactured experimently
In conjunction with accessory, makes water band pressure change and measure releasing power.In addition, also measuring the releasing of previous combination accessory to compare
Power.Herein, it releases power to refer in the state of being inserted into accessory 20 and undertaking accessory 10 combines, combines accessory to release
Maximum value that is locking and being applied to the power on the flange shape operation portion 22b of throw-out collar 22.The survey of necessary releasing power depicted herein
Definite value is the aggregate value of the power of latch spring 15, frictional force and the latching force generated by the occlusion on inclined-plane.
As shown in figure 9, in the state of not applying pressure to water band, the releasing power phase of previous product and the present embodiment
Deng.On the other hand, under the pressurized state of water band, as the pressure increases, power required for the combination of accessory releases increases.?
Under the common minimum 0.3MPa using pressure, the releasing power of the present embodiment is about 6 times of previous product.
Indicate to be released by people in Figure 10 combine accessory it is locking when maximum refer to the measured value of power.
Since insertion accessory 20 is different from the structure of accessory 10 is accepted, according to the operator released when combining accessory
With the relative position for combining accessory, that is, be station in insertion 20 side of accessory or stand in undertaking 10 side of accessory, the holding of finger is easy
Property changes, and accompanies with this, the way of output of power also changes.Measurement is to carry out relative to identical testee two positions
Measurement.In addition, being divided into common people and fireman as measure object and being measured to each group.It learns, is used for from the result
Releasing and combining minimum value, maximum value and the average value of the finger power of common people of accessory is respectively 140N, 550N and 308N.Separately
Outside, minimum value, maximum value and the average value of the finger power of fire fighter are respectively 149N, 680N and 398N.
According to this as a result, in the occasion using previous combination accessory, according to the difference of people, in the water band pressure of 0.7MPa
Under be also possible to release combine accessory combination.It in contrast, can be by people's in the occasion using combination accessory of the invention
Referring to that power releasing combines the limiting pressure of accessory is about 0.11MPa.Common minimum use pressure when fire-fighting operation is 0.3MPa,
Therefore, if using the present embodiment, the disengagement that accessory is combined caused by because of maloperation can be prevented.
Figure 11 is to previous whether can lead because throw-out collar is hooked in step in conjunction with accessory in conjunction with accessory and the present embodiment
It causes the combination of accessory to be released to carry out investigating result obtained.In addition, in the state that water band is not pressurized, to 22 hook of throw-out collar
The state of accessory when being hung on step is also investigated.Experiment is carried out 10 times respectively using new combination accessory.Same
Under pulling force, the probability that previous combination accessory is released from combination is 100%, and the releasing probability of the present embodiment is 0%.It can obtain
Know, in the present embodiment, when having been hooked by barriers such as steps, careless disengagement can be prevented.
Therefore, serviceability of the invention is confirmed.
Claims (4)
1. a kind of combination accessory of fire hose is made of insertion accessory and undertaking accessory,
Above-mentioned insertion accessory has insertion fitment body and throw-out collar,
The insertion fitment body is provided with cyclic annular protrusion on a side, and insertion accessory water band connection is provided on another party
Portion is provided with sliding cylinder portion between water band connection portion in above-mentioned cyclic annular protrusion and above-mentioned insertion accessory,
The throw-out collar can slide in above-mentioned sliding cylinder portion；
Above-mentioned undertaking accessory, which has, accepts fitment body and latch spring,
The undertaking fitment body is provided on a side accepts accessory pawl, is provided on another party and accepts accessory water band connection
Portion；
The direction of the latch spring towards the central axis of above-mentioned undertaking fitment body exerts a force to above-mentioned undertaking accessory pawl；
From the above-mentioned cyclic annular protrusion of a side of above-mentioned undertaking fitment body insertion, the position until crossing above-mentioned undertaking accessory pawl is
Only, thus in conjunction with above-mentioned insertion accessory and above-mentioned undertaking accessory,
Above-mentioned throw-out collar is set to slide and be inserted into above-mentioned undertaking accessory along above-mentioned sliding cylinder portion, it is locking with above-mentioned undertaking accessory pawl
Releasing is abutted with inclined-plane, above-mentioned locking releasing inclined-plane is pushed by above-mentioned throw-out collar, so that above-mentioned undertaking accessory pawl be pushed away outward
It opens, releases the locking of above-mentioned undertaking accessory pawl and above-mentioned cyclic annular protrusion, thus release above-mentioned insertion accessory and above-mentioned undertaking accessory
Combination, it is characterised in that:
Outer peripheral surface in above-mentioned sliding cylinder portion is provided with main body side non-slip groove,
The both ends of the inner peripheral surface of above-mentioned throw-out collar are provided with throw-out collar side non-slip groove,
Gap is equipped between the above-mentioned inner peripheral surface of above-mentioned throw-out collar and the above-mentioned outer peripheral surface in above-mentioned sliding cylinder portion,
If above-mentioned throw-out collar is in the state of a side side stress, a side of the front end of above-mentioned throw-out collar floats, and another party bites above-mentioned
It is inserted into the periphery of fitment body.
2. the combination accessory of fire hose according to claim 1, it is characterised in that: by aforementioned body side non-slip groove or on
It states throw-out collar side non-slip groove and is formed as wavy cross sectional shape.
3. the combination accessory of fire hose according to claim 1, it is characterised in that: by aforementioned body side non-slip groove or on
It states throw-out collar side non-slip groove and is formed as triangle or trapezoidal cross sectional shape.
4. the combination accessory of fire hose according to any one of claim 1 to 3, it is characterised in that: formation is traversed
The keyway for stating main body side non-slip groove is set up in such a way that the both ends of above-mentioned keyway are more than the width of aforementioned body side non-slip groove.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011-187580 | 2011-08-30 | ||
| JP2011187580A JP5864164B2 (en) | 2011-08-30 | 2011-08-30 | Fire hose coupling fittings |
| CN201210085819.3A CN102966817B (en) | 2011-08-30 | 2012-03-23 | The combination accessory of fire hose |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210085819.3A Division CN102966817B (en) | 2011-08-30 | 2012-03-23 | The combination accessory of fire hose |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106195489A CN106195489A (en) | 2016-12-07 |
| CN106195489B true CN106195489B (en) | 2019-03-26 |
Family
ID=47797151
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210085819.3A Active CN102966817B (en) | 2011-08-30 | 2012-03-23 | The combination accessory of fire hose |
| CN201610730569.2A Active CN106195489B (en) | 2011-08-30 | 2012-03-23 | The combination accessory of fire hose |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210085819.3A Active CN102966817B (en) | 2011-08-30 | 2012-03-23 | The combination accessory of fire hose |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP5864164B2 (en) |
| KR (1) | KR101678713B1 (en) |
| CN (2) | CN102966817B (en) |
| HK (1) | HK1182435A1 (en) |
| TW (1) | TWI554308B (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6384917B2 (en) * | 2014-10-08 | 2018-09-05 | 学校法人立命館 | Fire extinguishing nozzle |
| JP2016083191A (en) * | 2014-10-27 | 2016-05-19 | 学校法人立命館 | Community fire hydrant added with auxiliary fire extinction function |
| JP5977403B2 (en) * | 2015-07-29 | 2016-08-24 | 株式会社モリタホールディングス | Fire hose coupling fittings |
| CN105156800A (en) * | 2015-08-06 | 2015-12-16 | 刘磊 | Fast inserting type disengaging-preventing and binding-free hose coupling |
| CN106764180B (en) * | 2016-12-31 | 2019-05-24 | 缪灵军 | A kind of quick joint for metal pipes |
| CN106939951A (en) * | 2017-04-11 | 2017-07-11 | 公安部四川消防研究所 | A kind of connector fixing device and fastening method |
| CN107387903A (en) * | 2017-08-22 | 2017-11-24 | 周荣建 | A kind of fire extinguisher canvas hose joint |
| CN108273219A (en) * | 2017-12-13 | 2018-07-13 | 泉州旭瑞商务有限公司 | A kind of elastic fire hose |
| JP2020143724A (en) * | 2019-03-06 | 2020-09-10 | 株式会社山田製作所 | Metal insert fitting of insertion type connection joint, and insertion type connection joint |
| JP7226850B2 (en) * | 2019-04-04 | 2023-02-21 | フィフティスクエア株式会社 | Headphone cover and its fasteners |
| JP7376099B2 (en) * | 2020-06-04 | 2023-11-08 | 株式会社山田製作所 | Plug-in joint fittings and plug-in joints |
| CN113018744B (en) * | 2020-06-04 | 2022-08-12 | 安耐特消防装备有限公司 | Fire-fighting equipment collecting box and using method thereof |
| CN116734066B (en) * | 2023-08-15 | 2023-12-19 | 南通海王消防水带有限公司 | Fire control connects |
| CN117146084B (en) * | 2023-10-30 | 2024-02-20 | 泉州市山河消防技术有限公司 | Reducing type water hose connector |
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2012
- 2012-03-07 KR KR1020120023499A patent/KR101678713B1/en active IP Right Grant
- 2012-03-14 TW TW101108651A patent/TWI554308B/en active
- 2012-03-23 CN CN201210085819.3A patent/CN102966817B/en active Active
- 2012-03-23 CN CN201610730569.2A patent/CN106195489B/en active Active
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| GB1334339A (en) * | 1972-05-01 | 1973-10-17 | Mueller Co | Joint for smooth end or flareless pipe |
| US4083586A (en) * | 1976-11-12 | 1978-04-11 | Gordon H. Cork | Tube coupling |
| US4317471A (en) * | 1978-02-06 | 1982-03-02 | King Lloyd H Sr | Attachments for flexible or rigid tubing |
| CA2436552A1 (en) * | 2002-08-02 | 2004-02-02 | Tyco Electronics Amp Gmbh | Sealing device |
| CN201416716Y (en) * | 2009-06-23 | 2010-03-03 | 芜湖华夏消防装备有限责任公司 | Novel fire coupling |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20130024714A (en) | 2013-03-08 |
| TW201309361A (en) | 2013-03-01 |
| JP5864164B2 (en) | 2016-02-17 |
| CN102966817B (en) | 2016-09-28 |
| JP2013050143A (en) | 2013-03-14 |
| HK1182435A1 (en) | 2013-11-29 |
| CN106195489A (en) | 2016-12-07 |
| TWI554308B (en) | 2016-10-21 |
| KR101678713B1 (en) | 2016-11-22 |
| CN102966817A (en) | 2013-03-13 |
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