CN103527817B - The container value of extinguishing chemical storage bottle - Google Patents
The container value of extinguishing chemical storage bottle Download PDFInfo
- Publication number
- CN103527817B CN103527817B CN201310525549.8A CN201310525549A CN103527817B CN 103527817 B CN103527817 B CN 103527817B CN 201310525549 A CN201310525549 A CN 201310525549A CN 103527817 B CN103527817 B CN 103527817B
- Authority
- CN
- China
- Prior art keywords
- valve body
- connecting hole
- extinguishing chemical
- storage bottle
- chemical storage
- 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.)
- Active
Links
- 239000000126 substance Substances 0.000 title claims abstract description 37
- 210000003660 Reticulum Anatomy 0.000 claims abstract description 13
- 230000000712 assembly Effects 0.000 claims abstract description 13
- 238000011084 recovery Methods 0.000 claims abstract description 12
- 230000000875 corresponding Effects 0.000 claims description 10
- 230000037250 Clearance Effects 0.000 claims description 4
- 230000035512 clearance Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 239000003814 drug Substances 0.000 description 21
- 239000012071 phase Substances 0.000 description 7
- 239000003708 ampul Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- RJCQBQGAPKAMLL-UHFFFAOYSA-N Bromotrifluoromethane Chemical compound FC(F)(F)Br RJCQBQGAPKAMLL-UHFFFAOYSA-N 0.000 description 1
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 1
- 235000011613 Pinus brutia Nutrition 0.000 description 1
- 241000018646 Pinus brutia Species 0.000 description 1
- 210000001215 Vagina Anatomy 0.000 description 1
- 230000037237 body shape Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000737 periodic Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
nullThe invention discloses the container value of a kind of extinguishing chemical storage bottle，Including bonnet assemblies (1)、Core assembly (2)、Valve body (3)，Core assembly (2) is sealingly mounted in the endoporus of valve body (3)，Bonnet assemblies (1) is arranged on valve body (3) and above and is tightly connected with valve body (3)，A Pressure gauge (7) it is additionally provided with on this valve body (3)，This Pressure gauge (7) is arranged in the pressure tap (a) on valve body (3)，One the first connecting hole (b) is set on valve body (3)、Article one, it is connected with the first connecting hole (b) and is positioned at the first seal member that the outside of the transfer passage (f) on this valve body (3) and and this first connecting hole (b) is tightly connected mutually，One end perforate of transfer passage (f) is in valve body bottom surface (15)，Second connecting hole (b ') being connected with the endoporus of valve body (3) is also set up on valve body (3).This container value can realize to extinguishing chemical quick, pour in down a chimney recovery completely.
Description
Technical field
The present invention relates to the container value of a kind of extinguishing chemical storage bottle, including bonnet assemblies, core assembly, valve body, spool
Assembly is sealingly mounted in the endoporus of valve body, and bonnet assemblies is arranged on valve body and is connected with valve seal, this valve body
On be additionally provided with a Pressure gauge, this Pressure gauge is arranged in the pressure tap on valve body.
Background technology
The container value of extinguishing chemical storage bottle is mounted in the valve in 1301 extinguishing chemical storage bottles, for controlling 1301 extinguishing chemicals
Storage, discharge and pour in down a chimney.The container value of a kind of extinguishing chemical storage bottle that currently there are, including bonnet assemblies,
Core assembly, valve body, core assembly is sealingly mounted in the endoporus of valve body, bonnet assemblies be arranged on valve body and with
Valve seal connects, and this valve body is additionally provided with plug, relief valve assembly, Pressure gauge, and this Pressure gauge is arranged on valve body
On pressure tap in.Extinguishing chemical storage bottle need to carry out periodic inspection, need to pour in down a chimney out by the medicament in storage bottle during maintenance,
Again it is filled in storage bottle after Awaiting Overhaul.At present, 1301 extinguishing chemical storage bottles are by storage bottle container value when pouring in down a chimney medicament
Outlet be connected with the outlet of medicament returnable bottle, then open the container value of ampoule and returnable bottle, in former ampoule
Middle N2Pressure under, medicament flows to returnable bottle from former ampoule.There are two big defects in existing technology of pouring in down a chimney: one is
In the process of pouring in down a chimney, in former ampoule, pressure constantly declines, and in returnable bottle, pressure is constantly raising, and causes and pours in down a chimney speed
Gradually reduce, until in two bottles pressure balance and cannot pour in down a chimney；Two be former ampoule Chinese medicine be by siphon in bottle
Pipe flow goes out, and all has certain distance at the bottom of siphon and bottle, and the medicament in this segment distance is to pass through siphon pipe flow
Go out to realize recovery.Existing container value needs to pour out bottle group Chinese medicine in the case of Pressure gauge damages, then overhaul,
Change Pressure gauge, the most again fill medicament, trivial operations.Existing medicament pours in down a chimney lacking of technology and container value
Fall into, reduce and pour in down a chimney efficiency, create the biggest waste, to environment, not only increase making of user
By cost and maintenance cost, and have the hidden danger destroying atmospheric environment.
Summary of the invention
The technical problem to be solved in the present invention is to provide the container value of a kind of extinguishing chemical storage bottle, pours in down a chimney at 1301 extinguishing chemicals
Time, it is possible to achieve to extinguishing chemical quick, reclaim completely.
For solve above-mentioned technical problem, the container value of the extinguishing chemical storage bottle of the present invention include bonnet assemblies, core assembly,
Valve body, core assembly is sealingly mounted in the endoporus of valve body, and bonnet assemblies is arranged on valve body and connects with valve seal
Connecing, this valve body is additionally provided with a Pressure gauge, this Pressure gauge is arranged in the pressure tap on valve body, and this valve body is also
The recovery component of recovery is poured in down a chimney completely including an extinguishing chemical that can make in extinguishing chemical storage bottle.
As the improvement of the present invention, equipped with a leakproof screw in this pressure tap, the external screw thread of this leakproof screw with should
The female thread of pressure tap corresponding position forms matched in clearance.
As the improvement of the present invention, this recovery component include first connecting hole being located on this valve body, one with
This first connecting hole be connected and be positioned at the transfer passage on this valve body and one mutually close with the outside of this first connecting hole
The first seal member that envelope connects, one end perforate of this transfer passage is in valve body bottom surface.
As the improvement of the present invention, this recovery component also include one be located on this valve body and with the endoporus phase of this valve body
Second connecting hole of connection, the outside of this second connecting hole is tightly connected mutually with the second seal member.
As the improvement of the present invention, this first connecting hole is provided with one and can open or close this first connecting hole
First control member, is provided with second control that can open or close this second connecting hole in this second connecting hole
Component.
As the improvement of the present invention, this first control member is nonreturn valve core, and this second control member is nonreturn valve core,
The edge of this nonreturn valve core is provided with multiple opening, and the tail end of this nonreturn valve core is taper surface, outside this nonreturn valve core
Surface is provided with external screw thread, and on this connecting hole, the inner surface with this nonreturn valve core corresponding position is provided with and this nonreturn valve core
The female thread that matches of external screw thread, when inwardly tightening nonreturn valve core, the taper surface of nonreturn valve core is corresponding with this connecting hole
Inner surface seals and coordinates, and closes this connecting hole.
As the improvement of the present invention, the quantity of the opening of this nonreturn valve core is 6, the taper surface of this nonreturn valve core
Angle be 80 °.
As the improvement of the present invention, the outside of this first connecting hole uses thread seal to be connected with this first seal member,
The outside of this second connecting hole uses thread seal to be connected with this second seal member.
As the improvement of the present invention, this first seal member is secondary seal plug, the external screw thread of this secondary seal plug with
Female thread outside this first connecting hole is tightly connected mutually, this secondary seal beyond the Great Wall with this first connecting hole phase clamping
Position be provided with O-ring seals；This second seal member is secondary seal plug, the outer spiral shell of this secondary seal plug
Female thread outside stricture of vagina and this second connecting hole is tightly connected mutually, this secondary seal beyond the Great Wall with this second connecting hole phase
The position of clamping is provided with O-ring seals.
As the improvement of the present invention, this first connecting hole and this second connecting hole horizontal symmetry on valve body is arranged, should
First connecting hole does not connect the endoporus of this valve body, and this transfer passage is a cylinder parallel with the axis of this valve body
Shape passage, this transfer passage is near the outer surface of valve body.
Valve body inner bore is not connected by what side on the valve body of the container value of extinguishing chemical storage bottle arranged a level
First connecting hole and one are positioned on this valve body and its one end communicates with the first connecting hole, its other end opening is arranged
At the transfer passage of valve body bottom surface, the opposite side at this valve body arranges a level and is connected with the endoporus of this valve body
The second connecting hole, it is possible to realize 1301 extinguishing chemicals quick, pour in down a chimney recovery completely.By in extinguishing chemical storage bottle
Pressure tap on the valve body of container value is installed a leakproof screw forming matched in clearance with pressure tap inner surface,
During Pressure gauge breakage, it is possible to change Pressure gauge easily in the case of realizing having medicament in 1301 extinguishing chemical storage bottles and
Medicament will not be made to leak in a large number.
Accompanying drawing explanation
The present invention is further detailed explanation with detailed description of the invention below in conjunction with the accompanying drawings.
Fig. 1 is the sectional view of the container value front view of extinguishing chemical storage bottle of the present invention.
Fig. 2 is that the figure that cuts open of the container value left view of extinguishing chemical storage bottle of the present invention regards.
Fig. 3 is the nonreturn valve core sectional view of the present invention.
Fig. 4 is that 1301 medicaments of the present invention pour in down a chimney schematic diagram.
Wherein: 1, bonnet assemblies；2, core assembly；3, valve body；4, plug；5, relief valve assembly；6、
Leakproof screw；7, Pressure gauge；8, nonreturn valve core；9, O-ring seals；10, secondary seal plug；11, gas phase
Valve；12, liquid phase valve；13, returnable bottle；14, bottle is poured in down a chimney；15, valve body bottom surface；16, nonreturn valve core；17、
Secondary seal plug；18, O-ring seals；A, pressure tap；B, the first connecting hole；B ', the second connecting hole；c、
Installation screw；D, opening；E, taper surface；F, transfer passage；G, medicament pour in down a chimney pipeline；H, gas-liquid equilibrium
Pipeline；I, dismounting secondary seal plug change and pour in down a chimney special joint.
Detailed description of the invention
As shown in Figure 1 to Figure 3, the container value of 1301 extinguishing chemical storage bottles include bonnet assemblies 1, core assembly 2, valve body 3,
Plug 4, relief valve assembly 5, Pressure gauge 7, wherein core assembly 2 is sealed by O RunddichtringO and fits into valve body 3
Endoporus, bonnet assemblies 1 is connected with valve body 3 thread seal by O RunddichtringO, and plug 4 is screwed onto on the side opening of valve body 3,
Relief valve assembly 5 is screwed onto on valve body 3, and the valve body 3 on relief valve assembly 5 opposite has a pressure tap a, Pressure gauge
7 are arranged in this pressure tap a.On valve body 3, horizontal symmetry is provided with connecting hole b, b ' respectively, the first connecting hole b with
The horizontal sextant angle of relief valve assembly 5 is 90 °.First connecting hole b is made up of the hole of coaxial different-diameter, and first connects
Hole b does not connect the endoporus of this valve body 3, the external screw thread phase of the female thread outside the first connecting hole b and secondary seal plug 10
Being tightly connected, on secondary seal plug 10, the position with the first connecting hole b phase clamping is provided with O-ring seals 9.The
Side smaller near valve wall inner surface aperture for one connecting hole b and a valve pars intramuralis being arranged on valve body 3 and with this valve
The upper end of the cylindrical delivery passage f that the axis of body 3 is parallel is connected, and the lower end perforate of transfer passage f is in valve body bottom surface
15, transfer passage f is near the outer surface of valve wall.In first connecting hole b, the side near valve wall inner surface is provided with one
There is the nonreturn valve core 8 of 6 opening d at edge, and the tail end of nonreturn valve core 8 is taper surface e, and the angle beta of taper surface e is
80 °, the outer surface of nonreturn valve core 8 is provided with external screw thread, interior with nonreturn valve core 8 corresponding position on the first connecting hole b
Surface is provided with the female thread that the external screw thread with nonreturn valve core 8 matches, the cone of nonreturn valve core 8 when inwardly tightening nonreturn valve core 8
Shape face e and the first corresponding inner surface of connecting hole b seal and coordinate, and close transfer passage f.When quasi-operating status, single
Being threaded into valve body 3 to spool 8 and realize hard sealing therewith, secondary seal plug 10 is by being screwed at valve body 3
On, realized secondary seal by O-ring seals 9 therebetween, thus can ensure that its sealing property.
The structure of the second connecting hole b ' is similar to the first connecting hole b, but the second connecting hole b ' and the endoporus of this valve body 3
Being connected, the female thread in the second connecting hole b ' outside is tightly connected, at secondary mutually with the external screw thread of secondary seal plug 17
On sealing-plug 17, the position with the second connecting hole b ' phase clamping is provided with O-ring seals 18.In second connecting hole b '
The structure of nonreturn valve core 16, shape identical with nonreturn valve core 8, nonreturn valve core 16 when inwardly tightening nonreturn valve core 16
The corresponding inner surface of taper surface e and the second connecting hole b ' seals and coordinates, and closes the second connecting hole b '.
Under normal circumstances, quantity n of the opening d of nonreturn valve core 8,16 is 2≤n≤8；Nonreturn valve core 8,16
The angle beta of taper surface e be 30 °≤β≤150, it the most all can realize the function firmly sealed.
Equipped with a leakproof screw 6 in pressure tap a, the external screw thread of leakproof screw 6 and this pressure tap a corresponding positions
The female thread putting place forms matched in clearance.When Pressure gauge 7 damage needs dismounting and change, due to leakproof screw 6
Exist so that after disassembling Pressure gauge 7, do not have leakage of medicament phenomenon, it is to avoid waste substantial amounts of medicament.
As Fig. 4 medicament pours in down a chimney shown in schematic diagram, when 1301 medicaments pour in down a chimney, secondary seal plug 10,17 is pulled down, rotation
Pine nonreturn valve core 8,16, then changes into and pours in down a chimney special joint, and connect medicament and pour in down a chimney pipeline g and gas-liquid equilibrium pipeline h,
Placing by Fig. 4 and pour in down a chimney bottle 14 and returnable bottle 13, open liquid phase valve 12,1301 medicaments are continuously from pouring in down a chimney bottle 14 inflow recovery
In bottle 13.When medicament flow velocity stops or be the slowest, open gas valve 11, make two pressure of the inside of a bottle reach balance---medicament
Returnable bottle 13 is continued to flow into, until reclaiming completely by action of gravity.1301 extinguishing chemicals are BTM, molecule
Formula is CF3Br, this extinguishing chemical is water white transparency shape liquid.
It should be noted that detailed description of the invention is only to the explanation of technical solution of the present invention and explanation, should be by
It is interpreted as the restriction to technical solution of the present invention, any employing essence of the present invention summary of the invention and only make local change
, must fall within the scope of protection of the present invention.
Claims (9)
1. a container value for extinguishing chemical storage bottle, including bonnet assemblies (1), core assembly (2), valve body (3),
Core assembly (2) is sealingly mounted in the endoporus of valve body (3), and bonnet assemblies (1) is arranged on valve body (3)
Above and it is tightly connected with valve body (3), this valve body (3) is additionally provided with a Pressure gauge (7), this pressure
Table (7) is arranged in the pressure tap (a) on valve body (3), it is characterised in that: described valve body (3) is also
The recovery component of recovery is poured in down a chimney completely including an extinguishing chemical that can make in extinguishing chemical storage bottle；Described recovery component
Including first connecting hole (b) being located on described valve body (3), one and described first connecting hole (b)
Outside the transfer passage (f) being connected and be positioned on this valve body (3) and one are with this first connecting hole (b)
The first seal member that side is tightly connected mutually, one end perforate of described transfer passage (f) is in valve body bottom surface (15).
The container value of extinguishing chemical storage bottle the most according to claim 1, it is characterised in that: described pressure tap (a)
In equipped with a leakproof screw (6), the external screw thread of described leakproof screw (6) is corresponding to this pressure tap (a)
The female thread of position forms matched in clearance.
The container value of extinguishing chemical storage bottle the most according to claim 1, it is characterised in that: described recovery component is also
It is located at the second connecting hole (b ') that described valve body (3) is upper and is connected with the endoporus of this valve body (3) including one,
The outside of described second connecting hole (b ') is tightly connected mutually with the second seal member.
The container value of extinguishing chemical storage bottle the most according to claim 3, it is characterised in that: described first connecting hole
B () be provided with first control member that can open or close this first connecting hole (b), described second
Connecting hole (b ') is provided with second control member that can open or close this second connecting hole (b ').
The container value of extinguishing chemical storage bottle the most according to claim 4, it is characterised in that: described first controls structure
Part is nonreturn valve core (8), and described second control member is nonreturn valve core (16), described nonreturn valve core (8,
16) edge is provided with multiple opening (d), and the tail end of this nonreturn valve core (8,16) is taper surface (e),
The outer surface of this nonreturn valve core (8,16) is provided with external screw thread, and described connecting hole (b, b ') is gone up and this check valve
The inner surface of core (8,16) corresponding position is provided with what the external screw thread with this nonreturn valve core (8,16) matched
Female thread, when inwardly tightening nonreturn valve core (8,16) taper surface (e) of nonreturn valve core (8,16) with should
The corresponding inner surface of connecting hole (b, b ') seals and coordinates, and closes this connecting hole (b, b ').
The container value of extinguishing chemical storage bottle the most according to claim 5, it is characterised in that: described nonreturn valve core (8,
16) quantity of opening (d) is 6, the angle of the taper surface (e) of described nonreturn valve core (8,16)
Degree (β) is 80 °.
The container value of extinguishing chemical storage bottle the most according to claim 6, it is characterised in that: described first connecting hole
B the outside of () uses thread seal to be connected with described first seal member, described second connecting hole (b ')
Outside uses thread seal to be connected with described second seal member.
The container value of extinguishing chemical storage bottle the most according to claim 7, it is characterised in that: described first sealing
Part is secondary seal plug (10), the external screw thread of described secondary seal plug (10) and described first connecting hole (b)
The female thread in outside is tightly connected mutually, above blocks mutually with this first connecting hole (b) at this secondary seal plug (10)
Tight position is provided with O-ring seals (9)；Described second seal member is secondary seal plug (17), institute
The female thread of the external screw thread and described second connecting hole (b ') outside of stating secondary seal plug (17) is tightly connected mutually,
Above the position of this second connecting hole (b ') phase clamping is provided with O shape at this secondary seal plug (17) close
Seal (18).
The container value of extinguishing chemical storage bottle the most according to claim 8, it is characterised in that: described first connecting hole
B () arranges in the upper horizontal symmetry of described valve body (3) with described second connecting hole (b '), described first connects
Hole (b) does not connect the endoporus of this valve body (3), and described transfer passage (f) is one and this valve body (3)
The parallel cylindrical channel of axis, this transfer passage (f) is near the outer surface of valve body (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310525549.8A CN103527817B (en) | 2013-10-30 | The container value of extinguishing chemical storage bottle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310525549.8A CN103527817B (en) | 2013-10-30 | The container value of extinguishing chemical storage bottle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103527817A CN103527817A (en) | 2014-01-22 |
| CN103527817B true CN103527817B (en) | 2016-11-30 |
Family
ID=
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101757751A (en) * | 2009-12-29 | 2010-06-30 | 王建夫 | Self-extinguishing injection valve |
| CN103301589A (en) * | 2013-06-25 | 2013-09-18 | 北京丰荣航空科技有限公司 | Recovery method of alkyl-halide fire extinguishing agent in fire extinguishing bottle for aviation |
| CN203656270U (en) * | 2013-10-30 | 2014-06-18 | 上海金盾消防安全科技有限公司 | Container valve of extinguishing agent storage bottle |
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101757751A (en) * | 2009-12-29 | 2010-06-30 | 王建夫 | Self-extinguishing injection valve |
| CN103301589A (en) * | 2013-06-25 | 2013-09-18 | 北京丰荣航空科技有限公司 | Recovery method of alkyl-halide fire extinguishing agent in fire extinguishing bottle for aviation |
| CN203656270U (en) * | 2013-10-30 | 2014-06-18 | 上海金盾消防安全科技有限公司 | Container valve of extinguishing agent storage bottle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204283384U (en) | Sleeve medicine adding pot | |
| CN204986375U (en) | Steam of falling well -bucket trap | |
| CN103527817B (en) | The container value of extinguishing chemical storage bottle | |
| CN207094051U (en) | A kind of holing and sealing machine | |
| CN203656270U (en) | Container valve of extinguishing agent storage bottle | |
| CN204756294U (en) | End cap with buffer function | |
| CN203926925U (en) | Low pressure loss water sealed tank | |
| CN205639683U (en) | Conveniently change sealed ball valve of filter screen | |
| CN204420217U (en) | A kind of positive/negative-pressure seal water system | |
| CN103527817A (en) | Container valve of fire extinguishing agent storage bottle | |
| CN206956038U (en) | A kind of biogas fermentation device of positive/negative-pressure protection | |
| CN208003318U (en) | A kind of horizontal water pot bottle valve of gas extrusion | |
| CN208634462U (en) | A kind of spy fire tube container value | |
| CN206315569U (en) | A kind of oil saver device for fuel tank | |
| CN207213266U (en) | A kind of automatic drip water valve | |
| CN206875129U (en) | A kind of gas check water seal that can prevent failure | |
| CN206877160U (en) | Constant level device | |
| CN205727450U (en) | Slow-release water supply device | |
| CN205978547U (en) | Automatic leak protection valve | |
| CN207843374U (en) | There are two the automatic charging bottle placers of hopper for a kind of tool | |
| CN204592699U (en) | Pipeline effusion drainage device | |
| CN205778584U (en) | A kind of NEW TYPE OF COMPOSITE Breakdown acidizing pipe nipple | |
| CN204164442U (en) | A kind of anti-error startup direct-type visits the vessel valve of fire tube fire-fighting equipment | |
| CN208703232U (en) | A kind of detachable etch-proof valve arrangement | |
| CN105715963A (en) | Filling system with pressure self-balancing function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20140604 Address after: 201304 Shanghai city Pudong New Area Wansong College Town Road No. 88 Applicant after: Shanghai Jindun Fire-fighting Security Technology Co., Ltd. Applicant after: Shanghai Jindun Special Vehicle Co., Ltd. Address before: 201304 Shanghai city Pudong New Area Wansong College Town Road No. 88 Applicant before: Shanghai Jindun Fire-fighting Security Technology Co., Ltd. |
|
| TA01 | Transfer of patent application right |
Effective date of registration: 20150807 Address after: 201304 Shanghai city Pudong New Area Wansong College Town Road No. 88 Applicant after: Shanghai Jindun Fire-fighting Security Technology Co., Ltd. Address before: 201304 Shanghai city Pudong New Area Wansong College Town Road No. 88 Applicant before: Shanghai Jindun Fire-fighting Security Technology Co., Ltd. Applicant before: Shanghai Jindun Special Vehicle Co., Ltd. |
|
| GR01 | Patent grant |