CN212716758U - Fire door device for underground power cable channel - Google Patents
Fire door device for underground power cable channel Download PDFInfo
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- CN212716758U CN212716758U CN202020858957.0U CN202020858957U CN212716758U CN 212716758 U CN212716758 U CN 212716758U CN 202020858957 U CN202020858957 U CN 202020858957U CN 212716758 U CN212716758 U CN 212716758U
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- 238000005507 spraying Methods 0.000 claims abstract description 19
- 239000007921 spray Substances 0.000 claims abstract description 12
- 230000001681 protective effect Effects 0.000 claims description 41
- 239000003795 chemical substances by application Substances 0.000 claims description 33
- 239000011521 glass Substances 0.000 claims description 27
- 241000277275 Oncorhynchus mykiss Species 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 7
- 239000000843 powder Substances 0.000 abstract description 6
- 230000002265 prevention Effects 0.000 description 10
- 101100408455 Arabidopsis thaliana PLC7 gene Proteins 0.000 description 7
- 230000002633 protecting effect Effects 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 230000009970 fire resistant effect Effects 0.000 description 2
- 206010000369 Accident Diseases 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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Abstract
The utility model provides an underground power cable channel fire door device with good protection effect, which comprises a fire wall, a door frame, a fire-proof hinge, a fire-proof door, a fire-proof handle, a door closer, an installable observation window structure, an adjustable spraying pipe frame structure, a transportable spraying tank structure, a PLC and a drive switch, wherein the door frame is embedded in the middle part inside the fire wall; the fireproof hinge is respectively connected with the fireproof door and the door frame through bolts; the fireproof handle is welded on the inner side of the front surface of the fireproof door; the door closer bolt install in the anterior upside of door frame and the anterior upside of preventing fire door. The utility model has the advantages that: through the setting that can carry spray tank structure and adjustable spray pipe support structure, be convenient for put out a fire through shower nozzle blowout dry powder to preventing to fire wall and preventing fire around the door to the function of protection has been increased.
Description
Technical Field
The utility model belongs to the technical field of the power cable fire prevention, especially, relate to an underground power cable passageway fire door gear that protecting effect is good.
Background
To underground power cable transmission system, its power cable and relevant equipment cost of patrolling and examining are expensive, and the power cable passageway is laid in city underground usually, vertically and horizontally staggered, the environment is extremely complicated, therefore, daily patrolling and examining and accident prevention to underground power cable passageway are the heaviest thing of work, current underground power cable passageway adopts through-type overall arrangement, in case because external force destroys, the fire accident that causes such as abnormal current, the untimely power failure and the equipment damage of causing a large scale because of taking precautions against and handling, consequently can install fire door gear in the passageway, thereby the function of preventing fires and protecting, and the better protection and the damage of avoiding power cable.
However, the existing fire door device for underground power cable passage has the problems of poor protection effect, no function of fire extinguishing and inconvenience in observing the condition of fire.
Therefore, the invention provides a fire door device with a good protection effect for an underground power cable channel.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a underground power cable passageway fire door gear that protecting effect is good to solve the relatively poor function that just does not possess the function of putting out a fire of current underground power cable passageway fire door gear and the problem of the condition of the conflagration of being not convenient for observe. An underground power cable channel fire door device with a good protection effect comprises a fire wall, a door frame, a fire prevention hinge, a fire door, a fire prevention handle, a door closer, an installable observation window structure, an adjustable spraying pipe frame structure, a transportable spraying tank structure, a PLC (programmable logic controller) and a drive switch, wherein the door frame is embedded in the middle of the interior of the fire wall; the fireproof hinge is respectively connected with the fireproof door and the door frame through bolts; the fireproof handle is welded on the inner side of the front surface of the fireproof door; the door closer bolts are arranged on the upper side of the front part of the door frame and the upper side of the front part of the fireproof door; the structure capable of installing the observation window is arranged inside the fireproof door; the adjustable spraying pipe frame structure is arranged at the front part of the door frame; the transportable spraying tank structure is arranged on the right side of the front part of the firewall; the PLC bolt is arranged at the right upper part of the front surface of the firewall, and the front surface of the PLC is electrically connected with a driving switch; the transportable spraying tank structure comprises an air storage bottle, a first connecting pipe, a first electromagnetic valve, a second connecting pipe, a fire extinguishing agent bottle, a movable piston, a third connecting pipe and a second electromagnetic valve, wherein the air storage bottle is embedded in the right side of the interior of the firewall; one end of the first connecting pipe is in threaded connection with the lower end of the gas storage bottle, and the other end of the first connecting pipe is welded with the second connecting pipe; the first electromagnetic valve is in threaded connection with the first connecting pipe; the second connecting pipe is welded at the lower end of the fire extinguishing agent bottle; the fire extinguishing agent bottle is embedded in the middle right side of the interior of the firewall; the movable piston is movably embedded below the interior of the fire extinguishing agent bottle; one end of the third connecting pipeline is in threaded connection with the upper end of the fire extinguishing agent bottle, and the other end of the third connecting pipeline is in flange connection with the assembling pipe; and the second electromagnetic valve is in threaded connection with the third connecting pipeline.
Preferably, the adjustable spraying pipe frame structure comprises a mounting seat, a transverse pipe, a spray head, a positioning head and an assembling pipe, wherein the mounting seat is mounted on the upper part of the front surface of the door frame through bolts; the transverse pipe is arranged on the inner side of the mounting seat; the spray head is welded at the front end of the transverse pipe; the positioning heads are respectively welded at the left end and the right end of the transverse pipe; the assembling pipe is welded on the right side of the lower end of the transverse pipe.
Preferably, the structure capable of being provided with the observation window comprises a first protection plate, a second protection plate, a third protection plate, a fourth protection plate, a front fireproof glass plate, a rear fireproof glass plate and a fixed seat, wherein the first protection plate is welded at the upper ends of the second protection plate and the third protection plate; the second protection plate is welded at the left ends of the first protection plate and the third protection plate; the third protective plate is welded at the lower ends of the second protective plate and the fourth protective plate; the fourth protective plate is welded at the right ends of the first protective plate and the third protective plate; the front fireproof glass plate is embedded in the front parts of the inner sides of the first protection plate, the second protection plate, the third protection plate and the fourth protection plate; the rear fireproof glass plate is embedded in the rear parts of the inner sides of the first protection plate, the second protection plate, the third protection plate and the fourth protection plate; the fixing seat is welded in the middle of the upper surface of the third protection plate.
Preferably, the gas storage cylinder is connected with the fire extinguishing agent cylinder through a first connecting pipe and a second connecting pipe.
Preferably, the outer side of the inner part of the movable piston is provided with a rubber pad, and the inner side of the movable piston is provided with a cylindrical steel head.
Preferably, the upper end of the fire extinguishing agent bottle is connected with an assembly pipe on the transverse pipe through a third connecting pipeline.
Preferably, a plurality of spray heads are arranged at the front end of the transverse pipe.
Preferably, the positioning head is connected with the mounting seat through a bolt.
Preferably, the mounting seat is U-shaped and adopts a steel plate seat.
Preferably, the inner sides of the first protection plate, the second protection plate, the third protection plate and the fourth protection plate are respectively provided with a front fireproof glass plate and a rear fireproof glass plate.
Preferably, the fixing seat is arranged on the inner side of the first protection plate, the second protection plate, the third protection plate and the fourth protection plate.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses in, the gas bomb be connected with the fire extinguishing agent bottle through first connecting pipe and second connecting pipe, after opening first solenoid valve, can pour into gas into in the fire extinguishing agent bottle to drive the removal piston in the fire extinguishing agent bottle and move about.
2. The utility model discloses in, the inside outside of removal piston set up to the rubber pad, and remove the piston inboard and set up to cylindrical steel head, when pouring into gas, be convenient for drive the removal piston at the activity of fire extinguishing agent bottle to make the dry powder discharge in the fire extinguishing agent bottle and utilize.
3. The utility model discloses in, fire extinguishing agent bottle upper end through the third connecting tube with violently manage on the pipe and be connected, the better communicates to use thereupon.
4. The utility model discloses in, the shower nozzle of violently managing the front end be provided with a plurality ofly, be convenient for put out a fire to preventing hot wall and preventing fire door through shower nozzle blowout dry powder around to the function of protection has been increased.
5. The utility model discloses in, location head and mount pad pass through bolted connection, be convenient for drive location head and violently manage the angle use that adjusts the slope.
6. The utility model discloses in, the mount pad set up to the U type, and adopt the steel sheet seat, better cooperation is violently managed and is installed and adjust.
7. The utility model discloses in, first protection shield, second protection shield, third protection shield and fourth protection shield inboard be provided with preceding fire prevention glass board and back fire prevention glass board respectively, be convenient for observe the condition of conflagration through preceding fire prevention glass board and back fire prevention glass board.
8. The utility model discloses in, the fixing base setting in the inboard of first protection shield, second protection shield, third protection shield and fourth protection shield, when using, can install the surveillance camera head on the fixing base and observe the circumstances around preventing fire door.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the transportable spray can structure of the present invention.
Fig. 3 is the structure schematic diagram of the adjustable sprinkler pipe frame structure of the present invention.
Fig. 4 is a schematic structural view of the structure of the mountable observation window of the present invention.
Fig. 5 is a schematic diagram of the electrical connection of the present invention.
In the figure:
1. a firewall; 2. a door frame; 3. a fire-proof hinge; 4. a fire door; 5. a fire-proof handle; 6. A door closer; 7. an observation window structure can be installed; 71. a first protective plate; 72. a second protective plate; 73. a third protective plate; 74. a fourth protective plate; 75. a front fire-resistant glass panel; 76. a rear fire-resistant glass plate; 77. a fixed seat; 8. the structure of the spraying pipe frame can be adjusted; 81. a mounting seat; 82. A transverse tube; 83. a spray head; 84. positioning the head; 85. assembling a pipe; 9. a transportable spray can structure; 91. a gas cylinder; 92. a first connecting pipe; 93. a first solenoid valve; 94. a second connecting pipe; 95. a fire suppressant bottle; 96. moving the piston; 97. a third connecting pipe; 98. a second solenoid valve; 10. a PLC; 11. the switch is driven.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
example (b):
as shown in fig. 1 and fig. 2, an underground power cable channel fire door device with good protection effect comprises a fire wall 1, a door frame 2, a fire-proof hinge 3, a fire door 4, a fire-proof handle 5, a door closer 6, an installable observation window structure 7, an adjustable spraying pipe frame structure 8, a transportable spraying tank structure 9, a PLC10 and a driving switch 11, wherein the door frame 2 is embedded in the middle part inside the fire wall 1; the fireproof hinge 3 is respectively connected with the fireproof door 4 and the door frame 2 through bolts; the fireproof handle 5 is welded on the inner side of the front surface of the fireproof door 4; the door closer 6 is installed on the upper side of the front part of the doorframe 2 and the upper side of the front part of the fireproof door 4 through bolts; the structure 7 capable of installing the observation window is arranged inside the fireproof door 4; the adjustable spraying pipe frame structure 8 is arranged at the front part of the door frame 2; the transportable spraying tank structure 9 is arranged at the right side of the front part of the firewall 1; the PLC10 bolt is arranged at the upper right part of the front surface of the firewall 1, and the front surface of the PLC10 is electrically connected with the driving switch 11; the transportable spraying tank structure 9 comprises an air storage bottle 91, a first connecting pipe 92, a first electromagnetic valve 93, a second connecting pipe 94, a fire extinguishing agent bottle 95, a movable piston 96, a third connecting pipe 97 and a second electromagnetic valve 98, wherein the air storage bottle 91 is embedded at the right side inside the firewall 1; one end of the first connecting pipe 92 is in threaded connection with the lower end of the gas storage bottle 91, and the other end of the first connecting pipe is welded with the second connecting pipe 94; the first electromagnetic valve 93 is in threaded connection with the first connecting pipe 92; the second connecting pipe 94 is welded at the lower end of the fire extinguishing agent bottle 95; the fire extinguishing agent bottle 95 is embedded in the middle right side inside the firewall 1; the movable piston 96 is movably embedded below the interior of the fire extinguishing agent bottle 95; one end of the third connecting pipeline 97 is in threaded connection with the upper end of the fire extinguishing agent bottle 95, and the other end of the third connecting pipeline is in flange connection with the assembling pipe 85; the second solenoid valve 98 is screwed to the third connecting pipe 97.
In the above embodiment, as shown in fig. 3, specifically, the adjustable sprinkler pipe frame structure 8 includes a mounting seat 81, a transverse pipe 82, a spray head 83, a positioning head 84 and an assembling pipe 85, wherein the mounting seat 81 is bolted on the upper part of the front surface of the doorframe 2; the transverse pipe 82 is arranged on the inner side of the mounting seat 81; the spray head 83 is welded at the front end of the transverse pipe 82; the positioning heads 84 are respectively welded at the left end and the right end of the transverse pipe 82; the assembly pipe 85 is welded to the right side of the lower end of the cross pipe 82.
As shown in fig. 4, in the above embodiment, specifically, the mountable observation window structure 7 includes a first protection plate 71, a second protection plate 72, a third protection plate 73, a fourth protection plate 74, a front fireproof glass plate 75, a rear fireproof glass plate 76 and a fixing seat 77, where the first protection plate 71 is welded at the upper ends of the second protection plate 72 and the third protection plate 73; the second protective plate 72 is welded at the left ends of the first protective plate 71 and the third protective plate 73; the third protective plate 73 is welded at the lower ends of the second protective plate 72 and the fourth protective plate 74; the fourth protective plate 74 is welded at the right ends of the first protective plate 71 and the third protective plate 73; the front fireproof glass plate 75 is embedded in the front part of the inner sides of the first protection plate 71, the second protection plate 72, the third protection plate 73 and the fourth protection plate 74; the rear fireproof glass plate 76 is embedded in the rear part of the inner sides of the first protection plate 71, the second protection plate 72, the third protection plate 73 and the fourth protection plate 74; the fixing base 77 is welded to the middle of the upper surface of the third protection plate 73.
In the above embodiment, specifically, the gas bomb 91 is connected to the fire extinguishing agent bottle 95 through the first connecting pipe 92 and the second connecting pipe 94, and after the first electromagnetic valve 93 is opened, gas can be injected into the fire extinguishing agent bottle 95, so as to drive the movable piston 96 in the fire extinguishing agent bottle 95 to move.
In the above embodiment, specifically, the outer side of the inside of the movable piston 96 is provided with a rubber pad, and the inner side of the movable piston 96 is provided with a cylindrical steel head, so that when gas is injected, the movable piston 96 is conveniently driven to move in the fire extinguishing agent bottle 95, and thus dry powder in the fire extinguishing agent bottle 95 is discharged and utilized.
In the above embodiment, specifically, the upper end of the fire extinguishing agent bottle 95 is connected to the assembly pipe 85 on the transverse pipe 82 through the third connecting pipe 97, so as to better communicate with and be used with the assembly pipe.
In the above embodiment, specifically, a plurality of nozzles 83 are arranged at the front end of the transverse pipe 82, so that dry powder is sprayed from the nozzles 83 to extinguish fire around the firewall 1 and the fire door 4, thereby increasing the protection function.
In the above embodiment, specifically, the positioning head 84 is connected to the mounting seat 81 through a bolt, so as to drive the positioning head 84 and the transverse tube 82 to adjust the inclination angle.
In the above embodiment, specifically, the mounting seat 81 is configured to be U-shaped, and a steel plate seat is adopted, so as to better match with the horizontal tube 82 for mounting and adjustment.
In the above embodiment, specifically, the first protective plate 71, the second protective plate 72, the third protective plate 73 and the fourth protective plate 74 are respectively provided with a front fire-proof glass plate 75 and a rear fire-proof glass plate 76 on the inner sides, so that the condition of fire can be observed through the front fire-proof glass plate 75 and the rear fire-proof glass plate 76.
In the above embodiment, specifically, the fixing base 77 is disposed inside the first protection plate 71, the second protection plate 72, the third protection plate 73 and the fourth protection plate 74, and when in use, a monitoring camera can be mounted on the fixing base 77 to observe the situation around the fire door 4.
In the above embodiment, specifically, the PLC10 is a PLC of model FX 2N-48.
In the above embodiment, specifically, the first electromagnetic valve 93 is a DNF-Z-25 type electromagnetic valve.
In the above embodiment, specifically, the second electromagnetic valve 98 is a DNF-Z-25 type electromagnetic valve.
In the above embodiment, specifically, the driving switch 11 is electrically connected to an input terminal of the PLC10, the door closer 6 is electrically connected to an output terminal of the PLC10, the first electromagnetic valve 93 is electrically connected to an output terminal of the PLC10, and the second electromagnetic valve 98 is electrically connected to an output terminal of the PLC 10.
Principle of operation
The utility model discloses a theory of operation: when using, thereby close through door closer 6 and prevent fire door 4 and prevent fire wall 1 and protect, when protecting, open first solenoid valve 93 and second solenoid valve 98 respectively, make the gas in the gas bomb 91 enter into fire extinguishing agent bottle 95 through first connecting pipe 92 and second connecting pipe 94 in, thereby drive and remove piston 96 and remove, dry powder in the fire extinguishing agent bottle 95 enters into violently the pipe 82 through third connecting tube 97 and equipment pipe 85 simultaneously, and follow thereupon and spout from shower nozzle 83, the work of putting out a fire is carried out to fire wall 1 and the surrounding flame who prevents fire door 4, when using, can observe the condition of conflagration through preceding fire prevention glass board 75 and back fire prevention glass board 76.
Utilize technical scheme, or technical personnel in the field are in the utility model discloses under technical scheme's the inspiration, design similar technical scheme, and reach above-mentioned technological effect, all fall into the utility model discloses a protection scope.
Claims (10)
1. The fire door device for the underground power cable channel is characterized by comprising a fire wall (1), a door frame (2), a fire-proof hinge (3), a fire door (4), a fire-proof handle (5), a door closer (6), an installable observation window structure (7), an adjustable spraying pipe frame structure (8), a transportable spraying tank structure (9), a PLC (10) and a driving switch (11), wherein the door frame (2) is embedded in the middle part inside the fire wall (1); the fireproof hinge (3) is respectively connected with the fireproof door (4) and the door frame (2) through bolts; the fireproof handle (5) is welded on the inner side of the front surface of the fireproof door (4); the door closer (6) is arranged on the upper side of the front part of the door frame (2) and the upper side of the front part of the fireproof door (4) through bolts; the observation window structure (7) is arranged inside the fireproof door (4); the adjustable spraying pipe frame structure (8) is arranged at the front part of the door frame (2); the transportable spraying tank structure (9) is arranged on the right side of the front part of the firewall (1); the PLC (10) is arranged at the right upper part of the front surface of the firewall (1) through a bolt, and the front surface of the PLC (10) is electrically connected with a driving switch (11); the transportable spraying tank structure (9) comprises an air storage bottle (91), a first connecting pipe (92), a first electromagnetic valve (93), a second connecting pipe (94), a fire extinguishing agent bottle (95), a movable piston (96), a third connecting pipeline (97) and a second electromagnetic valve (98), wherein the air storage bottle (91) is embedded in the right side inside the firewall (1); one end of the first connecting pipe (92) is in threaded connection with the lower end of the gas storage bottle (91), and the other end of the first connecting pipe is welded with the second connecting pipe (94); the first electromagnetic valve (93) is in threaded connection with the first connecting pipe (92); the second connecting pipe (94) is welded at the lower end of the fire extinguishing agent bottle (95); the fire extinguishing agent bottle (95) is embedded in the middle right side inside the firewall (1); the movable piston (96) is movably embedded below the interior of the fire extinguishing agent bottle (95); one end of the third connecting pipeline (97) is in threaded connection with the upper end of the fire extinguishing agent bottle (95), and the other end of the third connecting pipeline is in flange connection with the assembling pipe (85); the second electromagnetic valve (98) is in threaded connection with the third connecting pipeline (97).
2. An underground electric power cable passage fire door apparatus as claimed in claim 1, wherein the adjustable sprinkler pipe frame structure (8) comprises a mounting seat (81), a cross pipe (82), a sprinkler head (83), a positioning head (84) and an assembling pipe (85), the mounting seat (81) is bolt-mounted on the upper portion of the front surface of the door frame (2); the transverse pipe (82) is arranged on the inner side of the mounting seat (81); the spray head (83) is welded at the front end of the transverse pipe (82); the positioning heads (84) are respectively welded at the left end and the right end of the transverse pipe (82); the assembling pipe (85) is welded on the right side of the lower end of the transverse pipe (82).
3. An underground electric power cable passage fire door apparatus as claimed in claim 1, wherein the mountable observation window structure (7) comprises a first protective plate (71), a second protective plate (72), a third protective plate (73), a fourth protective plate (74), a front fire-proof glass plate (75), a rear fire-proof glass plate (76) and a fixing base (77), the first protective plate (71) being welded to upper ends of the second protective plate (72) and the third protective plate (73); the second protective plate (72) is welded at the left ends of the first protective plate (71) and the third protective plate (73); the third protective plate (73) is welded at the lower ends of the second protective plate (72) and the fourth protective plate (74); the fourth protective plate (74) is welded at the right ends of the first protective plate (71) and the third protective plate (73); the front fireproof glass plate (75) is embedded in the front parts of the inner sides of the first protection plate (71), the second protection plate (72), the third protection plate (73) and the fourth protection plate (74); the rear fireproof glass plate (76) is embedded in the rear parts of the inner sides of the first protection plate (71), the second protection plate (72), the third protection plate (73) and the fourth protection plate (74); the fixed seat (77) is welded at the middle part of the upper surface of the third protective plate (73).
4. An underground electric power cable passage fire door apparatus as claimed in claim 1, wherein the gas cylinder (91) is connected to the fire extinguishing agent cylinder (95) through a first connecting pipe (92) and a second connecting pipe (94).
5. An underground electric power cable passage fire door apparatus as claimed in claim 1, wherein the outside of the inside of the moving piston (96) is provided with a rubber pad, and the inside of the moving piston (96) is provided with a cylindrical steel head.
6. An underground electric power cable passage fire door apparatus as claimed in claim 1, wherein the upper end of the fire extinguishing agent bottle (95) is connected to the assembling pipe (85) of the cross pipe (82) through a third connecting pipe (97).
7. An underground electric power cable passage fire door apparatus as claimed in claim 2, wherein a plurality of the spray heads (83) are provided at the front end of the cross pipe (82).
8. An underground electric power cable passage fire door apparatus as claimed in claim 2, wherein the positioning head (84) is bolted to the mounting seat (81).
9. An underground electric power cable passage fire door apparatus as claimed in claim 3, wherein the first (71), second (72), third (73) and fourth (74) protective plates are provided with a front (75) and rear (76) fire glass plates on the inner sides thereof, respectively.
10. An underground electric power cable passage fire door apparatus as claimed in claim 3, wherein the fixing base (77) is provided inside the first protection plate (71), the second protection plate (72), the third protection plate (73) and the fourth protection plate (74).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020858957.0U CN212716758U (en) | 2020-05-21 | 2020-05-21 | Fire door device for underground power cable channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020858957.0U CN212716758U (en) | 2020-05-21 | 2020-05-21 | Fire door device for underground power cable channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212716758U true CN212716758U (en) | 2021-03-16 |
Family
ID=74946624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020858957.0U Active CN212716758U (en) | 2020-05-21 | 2020-05-21 | Fire door device for underground power cable channel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212716758U (en) |
-
2020
- 2020-05-21 CN CN202020858957.0U patent/CN212716758U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A fireproof door device for underground power cable channel Effective date of registration: 20220225 Granted publication date: 20210316 Pledgee: Qilu Bank Co.,Ltd. Jinan Caishi sub branch Pledgor: SHANDONG HENGYUE FIRE FIGHTING ENGINEERING CO.,LTD. Registration number: Y2022370000029 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230227 Granted publication date: 20210316 Pledgee: Qilu Bank Co.,Ltd. Jinan Caishi sub branch Pledgor: SHANDONG HENGYUE FIRE FIGHTING ENGINEERING CO.,LTD. Registration number: Y2022370000029 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A fire door device for underground power cable channel Effective date of registration: 20230302 Granted publication date: 20210316 Pledgee: Qilu Bank Co.,Ltd. Jinan Caishi sub branch Pledgor: SHANDONG HENGYUE FIRE FIGHTING ENGINEERING CO.,LTD. Registration number: Y2023980033887 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20210316 Pledgee: Qilu Bank Co.,Ltd. Jinan Caishi sub branch Pledgor: SHANDONG HENGYUE FIRE FIGHTING ENGINEERING CO.,LTD. Registration number: Y2023980033887 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A Fireproof Door Device for Underground Power Cable Channels Granted publication date: 20210316 Pledgee: Qilu Bank Co.,Ltd. Jinan Caishi sub branch Pledgor: SHANDONG HENGYUE FIRE FIGHTING ENGINEERING CO.,LTD. Registration number: Y2024980007252 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |