CN107842663A - Water swivel device on a kind of car - Google Patents
Water swivel device on a kind of car Download PDFInfo
- Publication number
- CN107842663A CN107842663A CN201711064753.9A CN201711064753A CN107842663A CN 107842663 A CN107842663 A CN 107842663A CN 201711064753 A CN201711064753 A CN 201711064753A CN 107842663 A CN107842663 A CN 107842663A
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- China
- Prior art keywords
- mentioned
- water
- gum cover
- piston
- plunger shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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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
- F16L37/00—Couplings of the quick-acting type
- F16L37/02—Couplings of the quick-acting type in which the connection is maintained only by friction of the parts being joined
- F16L37/04—Couplings of the quick-acting type in which the connection is maintained only by friction of the parts being joined with an elastic outer part pressing against an inner part by reason of its elasticity
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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
- F16L37/00—Couplings of the quick-acting type
- F16L37/02—Couplings of the quick-acting type in which the connection is maintained only by friction of the parts being joined
- F16L37/04—Couplings of the quick-acting type in which the connection is maintained only by friction of the parts being joined with an elastic outer part pressing against an inner part by reason of its elasticity
- F16L37/06—Couplings of the quick-acting type in which the connection is maintained only by friction of the parts being joined with an elastic outer part pressing against an inner part by reason of its elasticity tightened by fluid pressure
Abstract
The present invention relates to water swivel device on a kind of car, including body, gum cover, guide cylinder, piston and water pipe head;Tubular body is hollow and both ends open;Water pipe head seals and is detachably arranged in one end of body;Gum cover inner hollow and both ends open, and the other end of body is sealingly mounted at, and formed between its side wall and inboard wall of tube body and compress chamber;Guide cylinder is the cylinder of both ends open, is set in body, and the intake antrum and plunger shaft that independently of each other and are coaxially disposed are separated into by dividing plate in it, and plunger shaft bottom wall is provided with steam vent, and intake antrum cavity wall is provided with inlet opening, and intake antrum openend connects with water pipe head;Piston is axially slidable to be arranged in plunger shaft;Piston is provided with guide pipe close to one end of gum cover, and the one end of guide pipe away from piston is stretched into the gum cover other end;Multiple through holes are evenly equipped with guide pipe side wall.Advantage:Device convenient disassembly, automatic disassembling after water self-locking and upper water can be realized, reduces labor intensity.
Description
Technical field
The present invention relates to locomotive fittingses technical field, water swivel device on more particularly to a kind of car.
Background technology
At present, each train has special water filling port.To train plus water process be all often manually to complete, generally
Water filling is realized by water pipe head and the connection of water filling port, but dismounted between traditional water pipe head and water filling port number
It is tired, and sealing property causes attendant's operating efficiency low, labor intensity is high, and very likely makes there is also some defects
Into the waste of water resource.
The content of the invention
The technical problems to be solved by the invention are to provide water swivel device on a kind of car, effectively overcome existing skill
The defects of art.
The technical scheme that the present invention solves above-mentioned technical problem is as follows:Water swivel device on a kind of car, including body, glue
Set, guide cylinder, piston and water pipe head;
Above-mentioned tubular body inner hollow and both ends open;
Above-mentioned water pipe head is sealed and is detachably arranged at the one end open of above-mentioned tubular body;
Above-mentioned gum cover inner hollow and both ends open, and be sealingly mounted in the other end openend of above-mentioned tubular body, and its
Formed between the inwall of side wall and the above-mentioned tubular body other end and compress chamber;
Above-mentioned guide cylinder is the cylinder of both ends open, and is set in inside above-mentioned tubular body, in it by be radially arranged every
Plate is separated into two intake antrums and plunger shaft separate and be coaxially disposed, is provided with the bottom wall of above-mentioned plunger shaft with the external world even
Logical steam vent, is provided with the inlet opening of connection tubular body in the cavity wall of above-mentioned intake antrum, the openend of above-mentioned intake antrum with it is upper
State water pipe head connection;
Above-mentioned piston is axially slidable to be arranged in above-mentioned plunger shaft;
Above-mentioned piston is provided with guide pipe close to one end of above-mentioned gum cover, one end open of the above-mentioned guide pipe away from piston, and
Stretched into through the openend of above-mentioned plunger shaft inside the other end of above-mentioned gum cover;
Multiple through holes are evenly equipped with above-mentioned guide pipe side wall.
The beneficial effects of the invention are as follows:Whole device is simple in construction, and dismounting quickly, conveniently, can realize the self-locking of water
With the automatic disassembling after upper water, labor intensity is reduced, practicality is stronger.
On the basis of above-mentioned technical proposal, the present invention can also do following improvement.
Further, the above-mentioned tubular body other end is removably arranged with end cap, the one end of above-mentioned gum cover away from above-mentioned guide cylinder
End is provided with a circle connecting portion, and above-mentioned connecting portion is clamped between above-mentioned end cap and the other end end of above-mentioned tubular body, above-mentioned end
Cover the mounting hole site for being provided with and being matched with one end open of the above-mentioned gum cover away from above-mentioned guide cylinder.
Beneficial effect using above-mentioned further scheme is that gum cover firmly installs, and is easy to dismounting to overhaul and change.
Further, above-mentioned gum cover is truncated cone-shaped, and its longitudinal section area is gradually reduced successively from one end to the other end.
Beneficial effect using above-mentioned further scheme is that gum cover is reasonable in design, is matched somebody with somebody beneficial to the grafting with water filling port on car
Close, grafting is relatively compacted, is not easy to loosen.
Further, above-mentioned tubular body includes junction block and joint outer cover, and above-mentioned junction block and joint outer cover is both ends open
Cylindrical structure, and be coaxially disposed, above-mentioned water pipe head seals and is detachably arranged in the one end open with above-mentioned junction block
Place, one end of above-mentioned joint outer cover are removably tightly connected and connected with the other end of above-mentioned junction block, and above-mentioned end cap is removable
The sealing unloaded is set on the other end periphery of above-mentioned joint outer cover, and above-mentioned connecting portion is clamped in above-mentioned end cap and joint outer cover
Between other end end;Above-mentioned compression chamber is formed between above-mentioned gum cover side wall and above-mentioned joint outer cover inwall;Above-mentioned guide cylinder is same
Axle sleeve is located in above-mentioned junction block.
Beneficial effect using above-mentioned further scheme is body split-type design, is easy to dismount, is easy to internal components
Carry out dismounting maintenance and replacing, it is more convenient, meanwhile, reduce the difficulty of production technology.
Further, above-mentioned intake antrum is removably tightly connected and connected with above-mentioned water pipe head.
Beneficial effect using above-mentioned further scheme is that guide cylinder is connected firmly with water pipe head, and sealing is preferable.
Further, blast pipe is coaxially provided with above-mentioned intake antrum, above-mentioned blast pipe one end extends through above-mentioned water pipe head
Outside above-mentioned water pipe head, the other end is extended in above-mentioned steam vent with being connected inside above-mentioned plunger shaft.
Beneficial effect using above-mentioned further scheme is the discharge beneficial to piston chamber air.
Further, groove is equipped with above-mentioned piston outer periphery, is arranged with sealing ring in above-mentioned groove, above-mentioned sealing ring with it is upper
State the inwall contact of plunger shaft.
It is so that using the beneficial effect of above-mentioned further scheme between piston and piston cavity wall and contacts good, sealing
Preferably, it is not easy gas leakage.
Further, above-mentioned inlet opening is provided with four, and is evenly distributed in the cavity wall of above-mentioned intake antrum.
It is reasonable in design using the above-mentioned further beneficial effect of scheme, the entrance of water body during beneficial to water filling.
Further, above-mentioned guide pipe is pipe, the row that axial direction of multiple above-mentioned through holes along above-mentioned guide pipe is equidistantly spaced
Into at least three row, and at least three above-mentioned through holes of row are evenly distributed in the side wall of above-mentioned guide pipe.
It is to ensure that water body smoothly can pass through guide pipe by tubular body using the beneficial effect of above-mentioned further scheme
Inject in the water filling port being connected with gum cover.
Brief description of the drawings
Fig. 1 is the sectional view of water swivel device on the car of the present invention;
Fig. 2 is the use state figure of water swivel device on the car of the present invention.
In accompanying drawing, the list of parts representated by each label is as follows:
1st, body, 2, gum cover, 3, guide cylinder, 4, piston, 5, water pipe head, 11, end cap, 12, junction block, 13, outside joint
Cover, 21, compress chamber, 22, connecting portion, 31, intake antrum, 32, plunger shaft, 33, blast pipe, 41, guide pipe, 42, sealing ring, 311,
Inlet opening, 411, through hole.
Embodiment
The principle and feature of the present invention are described below in conjunction with accompanying drawing, the given examples are served only to explain the present invention, and
It is non-to be used to limit the scope of the present invention.
Embodiment:As illustrated in fig. 1 and 2, water swivel device includes body 1, gum cover 2, guide cylinder on the car of the present embodiment
3rd, piston 4 and water pipe head 5;
The inner hollow of above-mentioned tubular body 1 and both ends open;
Above-mentioned water pipe head 5 is sealed and is detachably arranged at the one end open of above-mentioned tubular body 1;
The above-mentioned inner hollow of gum cover 2 and both ends open, and be sealingly mounted in the other end openend of above-mentioned tubular body 1, and
Formed between the inwall of its side wall and the other end of above-mentioned tubular body 1 and compress chamber 21;
Above-mentioned guide cylinder 3 is the cylinder of both ends open, and is set in inside above-mentioned tubular body 1, by being radially arranged in it
Dividing plate is separated into two intake antrums 31 and plunger shaft 32 separate and be coaxially disposed, is provided with the bottom wall of above-mentioned plunger shaft 32
The steam vent being in communication with the outside, the inlet opening 311 being provided with the cavity wall of above-mentioned intake antrum 31 inside connection body 1, above-mentioned water inlet
The openend of chamber 31 connects with above-mentioned water pipe head 5;
Above-mentioned piston 4 is axially slidable to be arranged in above-mentioned plunger shaft 32;
Above-mentioned piston 4 is provided with guide pipe 41, the above-mentioned one end of guide pipe 41 away from piston 4 close to one end of above-mentioned gum cover 2
Opening, and stretched into through the openend of above-mentioned plunger shaft 32 inside the other end of above-mentioned gum cover 2;
Multiple through holes 411 are evenly equipped with the above-mentioned side wall of guide pipe 41.
During upper water, by the water filling port of car and the grafting of gum cover 2, in general water filling port is downward, after grafting, gum cover 2 and note
There is stiction in mouth of a river contact, whole piecing devices will not drop under gravity, meanwhile, in connection procedure, water filling
The bottom of chamber for promoting mouthful into the inside moving process of gum cover 2 guide pipe 41 to be moved with piston 4 as plunger shaft 32, which abuts, (is exactly
Piston 4 is moved to form lowest part), the gas in piston chamber formed between piston 4 and the bottom of plunger shaft 32 is arranged by steam vent
Go out the external world, in next step, water pipe head 5 connected to the water pipe at water source, water source constantly enters water pipe head 5 by water pipe, enter back into
In water cavity 31, enter by the inlet opening 311 of the cavity wall of intake antrum 31 inside body 1, part water body enters to compress is pressing in chamber 21
Under power effect, gum cover 2 is tightly pressed against water filling port outer surface, so that gum cover 2 will not occur with water filling port in the injecting process
Come off or loosen, remaining water body enters in guide pipe 41 through the through hole 411 in the side wall of guide pipe 41, enters again through guide pipe 41 afterwards
Enter in water filling port to car moisturizing, after moisturizing, disconnect the connection at water pipe and water source, now, without hydraulic pressure in whole device, treat
After water in-pipe flow is most, outside air enters oral siphon, and the steam vent through the bottom of chamber of plunger shaft 32 enters in piston chamber and promotes work
Plug 4 moves up, because guide pipe 41 offsets with water filling port, in the presence of reaction force, whole device relative to water filling port to
Lower movement is until gum cover 2 separates with water filling port, and for whole process without manually being removed, mounting means is also only artificial grafting
, it is simple to operate, it is convenient, it is simple in construction, the labor intensity of worker is effectively reduced, has saved cost, also, will not make
Into the waste of great lot of water resources.
Preferably, the other end of above-mentioned tubular body 1 is removably arranged with end cap 11, above-mentioned gum cover 2 is away from above-mentioned guide cylinder 3
One end end is provided with a circle connecting portion 22, and above-mentioned connecting portion 22 is clamped in the other end end of above-mentioned end cap 11 and above-mentioned tubular body 1
Between, the mounting hole site matched with one end open of the above-mentioned gum cover 2 away from above-mentioned guide cylinder 3 is provided with above-mentioned end cap 11, is passed through
Clampings of end cap 11 and the other end end of tank body 1 ensures that connecting portion 22 and the stable of whole gum cover 2 are installed, be not susceptible to come off,
The situation of loosening.
Mounting hole site on above-mentioned end cap 11 is circular hole, its pore size and the one end of gum cover 2 away from above-mentioned guide cylinder 3
Opening diameter is equal in magnitude, and is coaxially disposed, to ensure that water filling port can smoothly insert gum cover 2 away from above-mentioned guide cylinder 3
In one end.
Certainly, the mounting hole site on end cap 11 can also be the hole of other shapes, but must assure that the hole position can not block
The one end open of gum cover 2.
Preferably, above-mentioned gum cover 2 is truncated cone-shaped, and its longitudinal section area is gradually reduced successively from one end to the other end, should
Design both can guarantee that the sidewall slope of gum cover 2 and between the inwall of body 1 formed compress chamber 21, and can ensure water filling port with gum cover
2 when being mutually inserted, and can be connected between the two with the depth increase of grafting more and more firm.
Above-mentioned gum cover 2 typically should be designed as mat surface using material, its inner surfaces such as rubber or silica gel, to lift itself and note
The frictional force of junction during the grafting of the mouth of a river, it is ensured that it is difficult for drop-off after both grafting, and there is preferable sealing.
The mat surface can be covered with salient point or wave or the projection etc. of phase same material in the inner surface of gum cover 2, make it
Inside surface roughness increase, to improve stiction when being contacted between the inner surface of gum cover 2 and water filling port outer surface.
Certainly, above-mentioned gum cover 2 may not be truncated cone-shaped, but must assure that its Internal periphery is truncated cone-shaped, and its outline can
To be other irregular shapes, but it must assure that between the inwall of its partial sidewall stretched into body 1 and body 1 to have
There is gap, to ensure that water body smoothly can be pressed on water filling port outer surface into by gum cover 2.
Preferably, above-mentioned tubular body 1 includes junction block 12 and joint outer cover 13, above-mentioned junction block 12 and joint outer cover 13 are
The cylindrical structure of both ends open, and be coaxially disposed, above-mentioned water pipe head 5 is sealed and is detachably arranged in and above-mentioned junction block 12
One end open at, one end of above-mentioned joint outer cover 13 is removably tightly connected and connected with the other end of above-mentioned junction block 12
Logical, removably sealing is set on the other end periphery of above-mentioned joint outer cover 13 above-mentioned end cap 11, and above-mentioned connecting portion 22 clamps
Between above-mentioned end cap 11 and the other end end of joint outer cover 13;The above-mentioned side wall of gum cover 2 and the above-mentioned inwall of joint outer cover 13 it
Between form above-mentioned compression chamber 21;Above-mentioned guide cylinder 3 is coaxially set in above-mentioned junction block 12, and the purpose of the design is that body is torn open
Fill very convenient, compare maintenance and cleaning beneficial to internal component or mechanism, also, reduce the difficult processing of whole body 1
Degree, and its assembling is convenient to.
The above-mentioned one end of guide cylinder 3 away from water pipe head 5 is additionally provided with capping, and the capping is provided with wears for above-mentioned guide pipe 41
The circular hole crossed, the aperture of circular hole should be slightly larger than the diameter of guide pipe 41 so that and guide pipe 41 can move axially along circular hole, and
And larger rock will not occur in moving process.
The diameter of another end opening of above-mentioned gum cover 2 should be slightly larger than the diameter of guide pipe 41, to ensure guide pipe 41
Smoothly stretch into, and cause guide pipe 41 that rocking by a relatively large margin will not occur.
There is external screw thread on the other end periphery of above-mentioned joint outer cover 13, there is internal thread on the inwall of above-mentioned end cap 11,
Above-mentioned end cap 11 is threaded in the other end end of above-mentioned joint outer cover 13, its convenient disassembly, and as it tightens gum cover 2
The firmness of installation also gradually increases.
There is external screw thread on the other end periphery of above-mentioned junction block 12, have on one end inwall of above-mentioned joint outer cover 12 interior
Screw thread, the other end of above-mentioned junction block 12 stretch into one end of joint outer cover 12 and are mutually threadedly coupled, both dismount it is very convenient,
Sealing ring can also be set on the other end periphery of junction block 12 by ring, with the sealing of both junctions of lifting.
There is internal thread inside one end of above-mentioned junction block 12, above-mentioned water pipe head 5 is threadably mounted at above-mentioned junction block 12
One end in, both dismount very convenient.
Preferably, above-mentioned intake antrum 31 is removably tightly connected and connected with above-mentioned water pipe head 5, its dismounting is very square
Just, beneficial to the maintenance in later stage.
Preferably, being coaxially provided with blast pipe 33 in above-mentioned intake antrum 31, above-mentioned one end of blast pipe 33 connects through above-mentioned water pipe
First 5 are extended outside above-mentioned water pipe head 5, and the other end is extended in above-mentioned steam vent and connected with the above-mentioned inside of plunger shaft 32, blast pipe
33 extend to water pipe head 5 in water filling, and the design is beneficial to the exhaust and air inlet of piston chamber, has on the above-mentioned periphery of intake antrum 31
External screw thread, one end that water pipe head 5 is connected with intake antrum 31 are provided with the groove of cylinder, have internal thread on the cell wall of groove,
Intake antrum 31 is stretched into the groove and is threadedly coupled with groove, so that both connections, and this is designed to so that being oriented to
Cylinder 3 is connected firmly.
Preferably, being equipped with groove on the above-mentioned periphery of piston 4, sealing ring 42, above-mentioned sealing ring are arranged with above-mentioned groove
42 contact with the inwall of above-mentioned plunger shaft 32, the design to contact sealing between piston 4 and the inwall of plunger shaft 32 it is preferable, no
Easily leak air etc. situation, it is ensured that the good operation of piston 4.
Preferably, above-mentioned inlet opening 311 is provided with four, and is evenly distributed in the cavity wall of above-mentioned intake antrum 31, its
It is reasonably distributed, beneficial to the smooth of water route, it is ensured that water filling port is well intake.
Preferably, above-mentioned guide pipe 41 is pipe, between axial direction of multiple above-mentioned through holes 411 along above-mentioned guide pipe 41 is equidistant
Every line up at least three row, and at least three above-mentioned through holes 411 of row are evenly distributed in the side wall of above-mentioned guide pipe 41, each column
Multiple through holes 411 are extended respectively to close to the position at the above-mentioned both ends of guide pipe 41, it is ensured that guide pipe 41 is located at gum cover 2 and guide cylinder
Part between 3 can be well by water body, so that it is guaranteed that water body can be smoothly entered in water filling port.
Water swivel device is integrally designed using split-mounting type split on whole car, difficult which not only reduces production and processing
Degree, while convenient disassembly, are easily changed each mechanism part, alleviate the intensity of maintenance, reduce cost.
The foregoing is only presently preferred embodiments of the present invention, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent substitution and improvements made etc., it should be included in the scope of the protection.
Claims (9)
- A kind of 1. water swivel device on car, it is characterised in that:Including body (1), gum cover (2), guide cylinder (3), piston (4) and Water pipe head (5);Body (1) inner hollow and both ends open;The water pipe head (5) seals and is detachably arranged at the one end open of the body (1);Gum cover (2) inner hollow and both ends open, and be sealingly mounted in the other end openend of the body (1), and Formed between the inwall of its side wall and the body (1) other end and compress chamber (21);The guide cylinder (3) is the cylinder of both ends open, and be set in that the body (1) is internal, by being radially arranged in it The intake antrum (31) and plunger shaft (32) that dividing plate is separated into two independently of each other and is coaxially disposed, the bottom wall of the plunger shaft (32) Place is provided with the steam vent being in communication with the outside, and the internal inlet opening of connection body (1) is provided with the cavity wall of the intake antrum (31) (311), the openend of the intake antrum (31) connects with the water pipe head (5);The piston (4) is axially slidable to be arranged in the plunger shaft (32);The piston (4) is provided with guide pipe (41) close to one end of the gum cover (2), and the guide pipe (41) is away from piston (4) One end open, and stretched into through the openend of the plunger shaft (31) inside the other end of the gum cover (2);Multiple through holes (411) are evenly equipped with guide pipe (41) side wall.
- 2. water swivel device on a kind of car according to claim 1, it is characterised in that:Body (1) other end can Dismounting is arranged with end cap (11), and one end end of the gum cover (2) away from the guide cylinder (3) is provided with a circle connecting portion (22), the connecting portion (22) is clamped between the other end end of the end cap (11) and the body (1), the end cap (11) mounting hole site matched with one end open of the gum cover (2) away from the guide cylinder (3) is provided with.
- 3. water swivel device on a kind of car according to claim 2, it is characterised in that:The gum cover (2) is truncated cone-shaped, And its longitudinal section area is gradually reduced successively from one end to the other end.
- 4. water swivel device on a kind of car according to claim 3, it is characterised in that:The body (1) includes joint (12) and joint outer cover (13) are managed, the junction block (12) and joint outer cover (13) they are the cylindrical structure of both ends open, and together Axle is set, the water pipe head (5) seal and be detachably arranged in at the one end open of the junction block (12), it is described to connect One end of head outer cover (13) is removably tightly connected and connected with the other end of the junction block (12), and the end cap (11) can The sealing of dismounting is set on the other end periphery of the joint outer cover (13), and the connecting portion (22) is clamped in the end cap (11) between the other end end of joint outer cover (13);Between gum cover (2) side wall and the joint outer cover (13) inwall Form the compression chamber (21);The guide cylinder (3) is coaxially set in the junction block (12).
- 5. water swivel device on a kind of car according to claim 4, it is characterised in that:The intake antrum (31) is detachable With the water pipe head (5) be tightly connected and connect.
- 6. water swivel device on a kind of car according to claim 5, it is characterised in that:It is coaxial in the intake antrum (31) Provided with blast pipe (33), described blast pipe (33) one end extends the water pipe head (5) outside through the water pipe head (5), separately One end is extended in the steam vent with being connected inside the plunger shaft (32).
- 7. water swivel device on a kind of car according to any one of claim 1 to 6, it is characterised in that:The piston (4) Groove is equipped with periphery, sealing ring (42), the sealing ring (42) and the plunger shaft (32) are arranged with the groove Inwall contacts.
- 8. water swivel device on a kind of car according to any one of claim 1 to 6, it is characterised in that:The inlet opening (311) four are provided with, and is evenly distributed in the cavity wall of the intake antrum (31).
- 9. water swivel device on a kind of car according to any one of claim 1 to 6, it is characterised in that:The guide pipe (41) it is pipe, what axial direction of multiple through holes (411) along the guide pipe (41) was equidistantly spaced lines up at least three row, and At least three row through holes (411) are evenly distributed in the side wall of the guide pipe (41).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201711064753.9A CN107842663B (en) | 2017-11-02 | 2017-11-02 | Water supply joint device for passenger car |
Applications Claiming Priority (1)
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CN201711064753.9A CN107842663B (en) | 2017-11-02 | 2017-11-02 | Water supply joint device for passenger car |
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CN107842663A true CN107842663A (en) | 2018-03-27 |
CN107842663B CN107842663B (en) | 2023-09-19 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111173078A (en) * | 2020-01-12 | 2020-05-19 | 邹晓雪 | Anti-leakage fire-fighting equipment with internal and external compression and unloading forces |
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