CN208049234U - Surge supercharging fire hydrant for a kind of indoor and outdoor - Google Patents
Surge supercharging fire hydrant for a kind of indoor and outdoor Download PDFInfo
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- CN208049234U CN208049234U CN201820272992.7U CN201820272992U CN208049234U CN 208049234 U CN208049234 U CN 208049234U CN 201820272992 U CN201820272992 U CN 201820272992U CN 208049234 U CN208049234 U CN 208049234U
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Abstract
Surge supercharging fire hydrant for a kind of indoor and outdoor, high pressure combination valve is connected by connecting flange with upper shell, plunger case is connected on high pressure combination valve and is fixed on inside upper shell, upper shell is connected at separation blind plate with lower housing, upper piston cylinder, reversing cylinder and lower piston cylinder are fixed on by fixed plate inside upper shell and lower housing, weary power fluid outlet is provided on upper shell, lower housing lower part is connected by flange with water inlet, water inlet with it is civilian come water pipeline be connected.The beneficial effects of the utility model are：1, the fire fighting supply that high building may be implemented when generation fire, can increase discharge pressure by the supercharging principle of big piston driving small plunger；2, it is supplied water using civilian pipe network, directly meets the needs of fire-fighting fire extinguishing is to water by being pressurized fire hydrant；3, it is not necessarily to circuit control.
Description
Technical field
The present invention relates to a kind of indoor and outdoor of fire-fighting surge supercharging fire hydrant, belong to fire-fighting auxiliary facility.I.e. a kind of room
The inside and outside supercharging fire hydrant that surges.
Background technology
With the continuous development of China's infrastructure, various regions skyscraper is on the increase.Occur following 5 in fire-fighting to ask
Topic：1, fire occurs for China's high buildings and large mansions in recent years, more than the current country of China fire-fighting system height of delivery of 80m floors and water supply
Wretched insufficiency is measured, by taking the demand of skyscraper fire extinguishing as an example, the floor more than 80m can not achieve high service so that the intensity of a fire is not
Timely and effective control can be obtained, the function of fire-fighting fire extinguishing far can not be reached.2, indoor and outdoor fire hydrant cannot supply water in time.Mesh
Before, fire demand water is stored in fire cistern, uses to pressurize through fire pump when water and supply water.After fire-fighting pump startup, need first to empty
Fire hydrant could be discharged after the air accumulated in pipe network, lead to fire hydrant water outlet lag.3, local old residential area aging circuit, meeting
There is power blackout situation, and supply voltage also has certain limitation, therefore fire pump dynamical system can be caused to go wrong.4, disappear
Anti- start button may fail, and cannot start fire pump.Fire_fighting pipe network is larger, when fire hydrant start button farther out from pump house
When (be more than 300m), due to the decaying of current signal, its electric current is too small and cannot start and disappear when fire-fighting start button reaches pump house
Anti- bolt pump, causes fire-fighting start button to lose practical function.5, fire protection pipeline does not have to for a long time, and generally existing is old when fire-fighting pump startup
The problem of changing leakage, reduces fire-fighting discharge pressure.
Invention content
It is an object of the invention in view of the above shortcomings of the prior art, provide a kind of indoor and outdoor using hydraulic drives
Surge supercharging fire hydrant, increases fire hydrant discharge pressure, shortens water discharging time, can be directly with domestic water supply pipe network come water drive
Dynamic, work efficiency is high, reasonable structural arrangement, and processing, manufacture and assembly are easy, and are transformed using existing fire protection pipeline, and it is difficult to implement
Spend low, improvement expenses are low；To solve existing fire hydrant, to go out water speed slow, and discharge pressure cannot reach requirement, and when power-off can not work
Make, offsets the high technical problem of anti-circuit requirement.
The present invention is to realize above-mentioned purpose by the following technical solutions：
Surge supercharging fire hydrant for a kind of indoor and outdoor, it is mainly by high pressure combination valve, plunger case, upper piston cylinder, commutation
Cylinder, lower piston cylinder, upper shell, lower housing, separates blind plate composition at reversal valve, which is characterized in that high pressure combination valve passes through connection
Flange is connected with upper shell, and plunger case is connected on high pressure combination valve and is fixed on inside upper shell, and upper shell is blind in separation
It is connected with lower housing at plate, upper piston cylinder, reversing cylinder and lower piston cylinder are fixed on by fixed plate inside upper shell and lower housing,
Weary power fluid outlet is provided on upper shell, outlet can provide fire-fighting temperature reduction water, lower housing lower part with fire hose band connection
Be connected with water inlet by flange, water inlet with it is civilian come water pipeline be connected, provide the power of supercharging device for supercharging fire hydrant
Liquid.
The high pressure combination valve is mainly made of valve body, unidirectional tapping valve, unidirectional liquid sucting valve, connecting flange；Valve body goes out
The mouth of a river, which is fixed with unidirectional tapping valve and can be connect with high-pressure fire hose, provides fire-fighting fire extinguishing high pressure water, and lower part is fixed with connection method
Orchid, valve body lower portion is circumferentially fixed 2 or more unidirectional liquid sucting valves, and is connected with plunger case.
The reversing cylinder the lower piston cylinder left side, reversal valve be mounted on reversing cylinder in, on reversing cylinder power fluid entrance with it is weary
Hydrodynamic outlet is separated by separation blind plate, has fixed plate, lower piston cylinder lower part to be provided with ventilation inside lower piston cylinder lower part and lower housing
Hole is equipped with anti-network blocking outside lower housing on venthole.
The reversal valve is mainly made of valve body, guiding valve, spool, and valve body is fixed in reversing cylinder, and spool passes through the left side
Flange is connect with valve body, and guiding valve is mounted on freely slidable on spool.
The reversal valve center is equipped with pull rod, and pull rod is freely slidable in reversal valve, and pull rod both ends are fixed with piston,
Upper piston is connected by connecting seat with plunger, and plunger operation up and down, pull rod left end in plunger case are opened there are two short drainage
Slot, right end are provided with long compensating groove.
The valve body left side is drilled with multiple runner holes being circular layout, and is communicated with valve inner by middle part annular groove,
Right side is drilled with the multiple runner holes being circular layout and is communicated with valve inner by middle part annular groove, side be provided with runner hole P,
T1, T2 are communicated with valve inner, and outside is provided with annular groove in runner hole P, T1, T2.
There is annular groove on the guiding valve right end path, there are two connected annular groove, left side is drilled with guiding valve left end endoporus
Aperture is connected with the annular groove, it is drilled with runner hole in the middle part of guiding valve.
The spool left part is drilled with unloading hole and is connected with valve body upper water-out mouth T2, is drilled with runner hole a in the middle part of spool, in spool
Being dug on the inside of portion has a longer annular groove.
The ratio between the piston area and ram area are between 1.5-10, i.e., pressure ratio is between 1.5-10.
Startup control device of the gate as supercharging fire hydrant can be installed additional by carrying out water inlet in pipe network.
The advantageous effect of the present invention compared with prior art is：
A kind of indoor and outdoor supercharging fire hydrant that surges uses a kind of hydraulic drives supercharging device, and 1, can be real when occurring fire
The fire fighting supply of existing high building, can increase discharge pressure by the supercharging principle of big piston driving small plunger；2, it can shorten and disappear
Prevent initial water discharging time, supplied water using civilian pipe network, directly meets fire-fighting fire extinguishing to water by being pressurized fire hydrant when fire occurs
Demand；3, it is not necessarily to circuit control, reduces the enormous expenditure for the construction of fire-fighting system circuit and maintenance；It 4, directly will be existing
Fire_fighting pipe network is connected with domestic water supply pipe network, low using difficulty；5, existing fire_fighting pipe network high-pressure leakage is solved the problems, such as.
Description of the drawings
Fig. 1 is a kind of supercharging fire hydrant pressurized construction schematic diagram；
Fig. 2 is high pressure combination valve structural schematic diagram；
A kind of supercharging fire hydrant substructure schematic diagrames of Fig. 3；
Fig. 4 is supercharging power end structural schematic diagram；
Fig. 5 is structure of reversing valve schematic diagram；
Fig. 6 is a kind of supercharging fire hydrant pressurized construction sectional view, flow route schematic diagram；
In figure：1, high pressure combination valve, 2, plunger case, 3, upper shell, 4, upper piston cylinder, 5, reversing cylinder, 6, separate blind plate,
7, lower piston cylinder, 8, lower housing, 9, cylinder body, 10, unidirectional tapping valve, 11, unidirectional liquid sucting valve, 12, connecting flange, 13, venthole,
14, fixed plate, 15, anti-network blocking, 16, water inlet, 17, plunger, 18, connecting seat, 19, piston, 20, reversal valve, 21, pull rod, 22,
End cap, 23, spool, 24, guiding valve, 25, valve body.
Specific implementation mode
In order to further explain the technical solution of the present invention, that the present invention will be described in detail below in conjunction with the accompanying drawings is as follows.
Surge supercharging fire hydrant for a kind of indoor and outdoor, it is by high pressure combination valve 1, plunger case 2, upper piston cylinder 4, reversing cylinder
5, reversal valve 20, lower piston cylinder 7, upper shell 3, lower housing 8, separation blind plate 6 are constituted, which is characterized in that high pressure combination valve 1 is logical
It crosses connecting flange 12 with upper shell 3 to be connected, plunger case 2 is connected on high pressure combination valve and is fixed on inside upper shell 3, upper casing
Body 3 is connected at separation blind plate 6 with lower housing 8, and upper piston cylinder 4, reversing cylinder 5 and lower piston cylinder 7 are fixed on by fixed plate
Inside shell 3 and lower housing 8, weary power fluid outlet is provided on upper shell 3, outlet can be provided with fire hose band connection to disappear
Anti- temperature lowering water, 8 lower part of lower housing are connected by flange with water inlet 16, water inlet 16 with it is civilian come water pipeline be connected, for supercharging
Fire hydrant provides the power fluid of supercharging device.（Referring to attached drawing 1,3,6）.
The high pressure combination valve 1 is made of valve body 9, unidirectional tapping valve 10, unidirectional liquid sucting valve 11, connecting flange 12；Valve
Body water outlet, which is fixed with unidirectional tapping valve 10 and can be connect with high-pressure fire hose, provides fire-fighting fire extinguishing high pressure water, and lower part is fixed with
Connecting flange 12, valve body lower portion is circumferentially fixed 2 or more unidirectional liquid sucting valves 11, and is connected with plunger case 2.（Referring to attached drawing 2,
6）.
The reversing cylinder 5 is mounted in 7 left side of lower piston cylinder, reversal valve 6 in reversing cylinder 5, power fluid entrance on reversing cylinder
Export with weary hydrodynamic and separated by separation blind plate 6, it is therefore an objective to make weary power fluid in upper shell 3 and 8 inner drive liquid of lower housing every
It is disconnected；There is fixed plate 14 inside 7 lower part of lower piston cylinder and lower housing 8, it is therefore an objective to 7 axial restraint of lower piston cylinder；Under lower piston cylinder 7
Portion is provided with venthole 13, anti-network blocking 15 is housed on 8 outside venthole 13 of lower housing, it is therefore an objective to lower piston cylinder be made to be connected to outside.
（Referring to attached drawing 4,6）.
The reversal valve 20 is made of valve body 25, guiding valve 24, spool 23, and valve body 25 is fixed in reversing cylinder 5, and spool 23 is logical
The flange for crossing the left side is connect with valve body 25, and guiding valve 24 is mounted on freely slidable on spool 24.（Referring to attached drawing 5）.
20 center of the reversal valve is equipped with pull rod 21, and pull rod 21 is freely slidable in reversal valve 20,21 both ends of pull rod
It is fixed with piston 19, upper piston 19 is connected by connecting seat 18 with plunger 17, and the operation up and down in plunger case 2 of plunger 17 is drawn
21 left end of bar is opened there are two short drainage trough j, and right end is provided with long compensating groove i, it is therefore an objective to move to extreme position in pull rod 21
When with reversal valve cooperatively form new runner.(referring to attached drawing 4,6).
25 left side of the valve body is drilled with multiple runner hole d being circular layout, inside middle part annular groove and valve body 25
It communicates, right side is drilled with the multiple runner hole c being circular layout by being communicated inside middle part annular groove and valve body 25, and side is provided with stream
Road hole P, T1, T2, and communicate inside valve body 25, and outside is provided with annular groove in runner hole P, T1, T2, it is therefore an objective to is not necessarily to when coordinating
It carries out circumferentially positioned.(referring to attached drawing 5).
There is annular groove f on 24 right end path of the guiding valve, it is therefore an objective to make when guiding valve 24 moves to left end on spool 23
Runner c is connected with outlet T1, and for 24 left end endoporus of guiding valve there are two connected annular groove h, left side is drilled with aperture and annular groove h phases
Even, it is therefore an objective to which it is left that when guiding valve 24 moves to left end, liquid can pass through annular groove h in runner a, aperture enters guiding valve 24
End face, 24 middle part of guiding valve are drilled with runner hole g, it is therefore an objective to runner d be made to be connected with entrance P when guiding valve 24 moves to right end.（Ginseng
See attached drawing 5）.
23 left part of the spool is drilled with unloading hole b and is connected with 25 upper water-out mouth T2 of valve body, it is therefore an objective to when pull rod 21 moves to
Unloading hole b is connected by compensating groove i on pull rod 21 with runner a when left end, and the middle part of spool 23 is drilled with runner hole a, in spool 23
Being dug on the inside of portion has a longer annular groove, it is therefore an objective to form runner with drainage trough j on pull rod 21 when pull rod 21 moves to right end
E makes runner a be connected with import P.(referring to attached drawing 5).
19 area of the piston and 17 area ratio of plunger are between 1.5-10, i.e., pressure ratio is between 1.5-10.
Supercharging fire hydrant is surged by taking water pipeline offer certain pressure power fluid in the indoor and outdoor, and reversal valve 20 is in power
It works under the action of liquid, realizes the reciprocating motion of piston 19 to drive the reciprocating motion of plunger 17, the reciprocating motion of plunger 17 to make
The volume for being attached thereto 2 intracavitary of plunger case changes, and the pressure in high pressure combination valve intracavitary portion is made to change, and realizes installation
The imbibition and drain of check valve on high pressure combination valve.It is realized simultaneously by the difference in areas by piston 19 and plunger 17
Supercharging.Specific work process is：
Power fluid enters reversal valve via water inlet 16, fixed plate 14 and lower housing 8 and liquid entrance, power fluid driving is driven to change
It commutates to valve 20 and pushes piston motion, realize that piston pumps, weary power fluid enters upper casing via the outlet of weary hydrodynamic
Inside body 3.A weary power fluid part inside upper shell 3 is discharged via 3 weary hydrodynamic outlet of upper shell, and a part is inhaled from unidirectional
Enter valve 11 and enter high pressure combination valve chamber, high pressure fire fighting water is used as by the discharge of unidirectional tapping valve 10 after plunger pressurizes.
20 specific reversing principle of reversal valve is：When pull rod 21 is moved downwardly to bottom（Fig. 5）, 23 upper runner a of spool
It is connected with power fluid import P by the drainage trough j on tie-bar 21,19 upper surface of guiding valve is high pressure at this time, and lower face is also high pressure
Since two sides is there are difference in areas, guiding valve 23 moves down, and runner c is connected with outlet T1, and runner d is connected with import P, and power fluid passes through stream
Road d enters upper piston cylinder 4, and piston 19 is pushed to move upwards, and runner a is closed.Spool 23 forms confined air with 24 upper surface of guiding valve
Between, inside is highly pressurised liquid.Piston 19 moves upwards, and drives plunger 17 to move upwards by connecting seat 18,2 volume of plunger case subtracts
Small, pressure rise, liquid is discharged by one-way release valve 10, completes drain.
When pull rod 21 moves upward to the top, 23 upper runner a of spool passes through on compensating groove i on pull rod 21 and spool 23
Runner b is connected, and runner b is connected with outlet T2, the confined space off-load that spool 23 is formed with 24 upper surface of guiding valve, at this time guiding valve 24
Lower face be high-pressure side upper surface low pressure, due to two sides there are difference in areas so guiding valve 19 moves up, runner c is connected with import P, flow
Road d is connected with outlet T1, drives the water through runner c and enters lower end piston cylinder 7, piston 19 is pushed to move downward, runner a is closed.
Piston 19 moves downward through connecting seat 18 and plunger 17 is driven to move downward, and 2 volume of plunger case increases, and pressure reduces, and liquid is logical
The sucking of unidirectional liquid feed valve 11 is crossed, imbibition is completed.
Pressurized outlet is connected with high pressure fire fighting hose when fire occurs, and can implement fire-fighting fire extinguishing operation to skyscraper,
Weary power fluid outlet can be connected with fire hose can be used for lower fire-fighting operation or live cool down into lower water that directly set a raft going
Pipeline.Public supply mains pressure is about 0.25~0.4MPa, and intensification factor discharge pressure when between 1.5 to 10 can meet
Fire demand water pressure demand.
The above is present pre-ferred embodiments, and the example above illustrates not appoint the substantive content of the present invention
What formal limitation, technology of the person of an ordinary skill in the technical field after having read this specification according to the present invention are real
It verifies any simple modification or deformation made by the above specific implementation mode, and adds possibly also with the technology contents of the disclosure above
To change or be modified to the equivalent embodiment of equivalent variations, in the range of still falling within technical solution of the present invention, without departing from this
The spirit and scope of invention.
Claims (8)
- The supercharging fire hydrant 1. a kind of indoor and outdoor are surged, it is mainly by high pressure combination valve（1）, plunger case（2）, upper piston cylinder （4）, reversing cylinder（5）, lower piston cylinder（7）, upper shell（3）, lower housing（8）, separate blind plate（6）It constitutes, which is characterized in that high pressure Combination valve（1）Pass through flange and upper shell（3）It is connected, plunger case（2）It is connected on high pressure combination valve and in upper shell（3） Inside, upper shell（3）Separate blind plate at and lower housing（8）It is connected, upper piston cylinder（4）, reversing cylinder（5）With lower piston cylinder（7） It is fixed on upper shell by fixed plate（3）And lower housing（8）Inside, upper shell（3）On be provided with weary power fluid outlet, outlet Fire-fighting temperature reduction water, lower housing can be provided with fire hose band connection（8）Lower part is connected by flange with water inlet, water inlet and the people It is connected for water pipeline, the power fluid of supercharging device is provided for supercharging fire hydrant.
- The supercharging fire hydrant 2. a kind of indoor and outdoor according to claim 1 are surged, it is characterised in that：The high pressure is into drain Valve（1）Mainly by valve body（9）, unidirectional tapping valve（10）, unidirectional liquid sucting valve（11）, connecting flange（12）Composition；Valve body water outlet It is fixed with unidirectional tapping valve（10）And connect with high-pressure fire hose and fire-fighting fire extinguishing high pressure water is provided, lower part is fixed with connecting flange （12）, valve body lower portion is circumferentially fixed 2 or more unidirectional liquid sucting valves（11）, and and plunger case（2）It is connected.
- The supercharging fire hydrant 3. a kind of indoor and outdoor according to claim 1 are surged, which is characterized in that the reversing cylinder（5）? Lower piston cylinder（7）Top, reversal valve（20）Mounted in reversing cylinder（5）It is interior, reversing cylinder（5）Upper driving liquid entrance goes out with weary hydrodynamic Mouth is by separation blind plate（6）Separate, it is therefore an objective to make upper shell（3）Interior weary power fluid and lower housing（8）Inner drive liquid separates；Under Piston cylinder（7）Lower part and lower housing（8）There is fixed plate in inside（14）, it is therefore an objective to lower piston cylinder（7）Axial restraint；Lower piston cylinder （7）Lower part is provided with venthole（13）, lower housing（8）Outside venthole（13）It is upper that anti-network blocking is housed（15）, it is therefore an objective to make lower piston Cylinder is connected to outside.
- The supercharging fire hydrant 4. a kind of indoor and outdoor according to claim 1 are surged, it is characterised in that：The piston（19）Face Product and plunger（17）Area ratio is between 1.5-10, i.e., pressure ratio is between 1.5-10.
- The supercharging fire hydrant 5. a kind of indoor and outdoor according to claim 1 are surged, which is characterized in that carry out water inlet in pipe network Install startup control device of the gate as supercharging fire hydrant additional.
- The supercharging fire hydrant 6. a kind of indoor and outdoor according to claim 1 are surged, which is characterized in that the reversal valve（20） By valve body（25）, guiding valve（24）, spool（23）It constitutes, valve body（25）It is fixed on reversing cylinder（5）It is interior, spool（23）Pass through the left side Flange and valve body（25）Connection, guiding valve（24）Mounted on spool（24）It is upper freely slidable.
- The supercharging fire hydrant 7. a kind of indoor and outdoor according to claim 6 are surged, which is characterized in that the reversal valve（20） Center is equipped with pull rod（21）, pull rod（21）In reversal valve（20）In freely slidable, pull rod（21）Both ends are fixed with piston （19）, upper piston（19）Pass through connecting seat（18）With plunger（17）It is connected, plunger（17）In plunger case（2）Interior operation up and down, Pull rod（21）Left end is opened there are two short drainage trough（j）, right end is provided with long compensating groove（i）, it is intended that in pull rod（21）Movement To when extreme position new runner is cooperatively formed with reversal valve.
- The supercharging fire hydrant 8. a kind of indoor and outdoor according to claim 6 are surged, which is characterized in that the valve body（25）It is left End face is drilled with multiple runner holes being circular layout（d）, pass through middle part annular groove and valve body（25）Inside communicates, and right side is drilled with ring Multiple runner holes of shape arrangement（c）Pass through middle part annular groove and valve body（25）Inside communicates, and side is provided with runner hole（P）,（T1）, （T2）, with valve body（25）Inside communicates, runner hole（P）,（T1）,（T2）Interior outside is provided with annular groove, it is therefore an objective to when coordinating without It need to carry out circumferentially positioned；The guiding valve（24）There is annular groove on right end path（f）, it is therefore an objective to work as guiding valve（24）Make spool when moving to left end （23）Upper runner（c）With outlet（T1）It is connected, guiding valve（24）There are two connected annular grooves for left end endoporus（h）, left side is drilled with Aperture is connected with annular groove (h), it is therefore an objective to work as guiding valve（24）Runner when moving to left end（a）Middle liquid can pass through the annular Slot（h）, aperture enter guiding valve（24）Left side, guiding valve（24）Middle part is drilled with runner hole（g）, it is therefore an objective to work as guiding valve（24）It moves to Make runner when right end（d）With entrance（P）It is connected；The spool（23）Left part is drilled with unloading hole（b）With valve body（25）Upper water-out mouth（T2）It is connected, it is therefore an objective to work as pull rod（21） Unloading hole when moving to left end（b）Pass through pull rod（21）Upper compensating groove（i）With runner（a）It is connected, spool（23）Middle part is drilled with Runner hole (a), the digging of spool (23) inside middle portion have a longer annular groove, it is therefore an objective to work as pull rod（21）When moving to right end and draw Bar（21）Upper drainage trough forms runner (e), so that runner (a) is connected with import (P), pull rod（21）Right end is provided with two shorter drainage troughs (j), left end is provided with longer compensating groove (i).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820272992.7U CN208049234U (en) | 2018-02-27 | 2018-02-27 | Surge supercharging fire hydrant for a kind of indoor and outdoor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820272992.7U CN208049234U (en) | 2018-02-27 | 2018-02-27 | Surge supercharging fire hydrant for a kind of indoor and outdoor |
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| CN208049234U true CN208049234U (en) | 2018-11-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108245815A (en) * | 2018-02-27 | 2018-07-06 | 天津市仕杰达液压技术服务有限公司 | Surge supercharging fire hydrant and its boosting method for a kind of indoor and outdoor |
-
2018
- 2018-02-27 CN CN201820272992.7U patent/CN208049234U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108245815A (en) * | 2018-02-27 | 2018-07-06 | 天津市仕杰达液压技术服务有限公司 | Surge supercharging fire hydrant and its boosting method for a kind of indoor and outdoor |
| CN108245815B (en) * | 2018-02-27 | 2023-08-18 | 天津市仕杰达能源技术开发有限公司 | Indoor and outdoor hydraulic pressurizing fire hydrant and pressurizing method thereof |
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| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230801 Address after: 300280 Floor 2, Comprehensive Building, Chuangye Lubei District, Dagang, Binhai, Tianjin Patentee after: TIANJIN SHIJIEDA ENERGY TECHNOLOGY DEVELOPMENT Co.,Ltd. Address before: Floor 2, Building 8, TEDA Service Outsourcing Industrial Park, No. 19, Xinhuan West Road, Binhai, Tianjin, 300280 Patentee before: TIANJIN SHIJIEDA HYDRAULIC TECHNOLOGY SERVICE CO.,LTD. |
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| TR01 | Transfer of patent right |