CN209444824U - Smoke exhaust fire damper and smoke-exhaust fire system - Google Patents
Smoke exhaust fire damper and smoke-exhaust fire system Download PDFInfo
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- CN209444824U CN209444824U CN201920041663.6U CN201920041663U CN209444824U CN 209444824 U CN209444824 U CN 209444824U CN 201920041663 U CN201920041663 U CN 201920041663U CN 209444824 U CN209444824 U CN 209444824U
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Abstract
The utility model relates to smoke exhaust fire damper technical fields, and more particularly, to a kind of smoke exhaust fire damper and smoke-exhaust fire system, smoke exhaust fire damper includes valve body, the first driving mechanism and multiple second driving mechanisms；Wherein, multiple blades are provided in valve body, multiple blades pass through connecting shaft and valve body is rotatablely connected；First driving mechanism and the second driving mechanism are used to that multiple connecting shafts is driven to drive corresponding blade synchronization rotation；The either end opening of valve body is provided with dismountable connector, and connector is used to connect the flange of the smoke discharging pipe different from the opening shape of valve body.It can be seen that, first driving mechanism and the second driving mechanism can be operated alone multiple connecting shafts and drive corresponding blade synchronization rotation, thus play the role of double insurance, improve safety coefficient, furthermore, it is provided with dismountable connector at any place open at one end of valve body, it is thus achieved that the connection to the smoke discharging pipe different from its opening shape, versatile.
Description
Technical field
The utility model relates to smoke exhaust fire damper technical fields, and in particular to a kind of smoke exhaust fire damper and smoke-exhaust fire system
System.
Background technique
Currently, smoke exhaust fire damper is typically mounted on the pipeline of mechanical smoke extraction system, and it is usually in open state, fire occurs
When opened smoke-discharging, the closing when flue-gas temperature reaches 280 degree in smoke discharging pipe, and meet leakage smoke and fire resisting within a certain period of time
Integrity demands serve every cigarette back-fire relief.But the mechanism that existing smoke exhaust fire damper drives its inner vanes to rotate is unique, once
Driving mechanism damage then causes smoke exhaust fire damper that can not close, leads to the intensity of a fire when needing smoke exhaust fire damper to close barrier fire behavior
Sprawling, can not be separated, and then lead to huge loss, meanwhile, the valve body of existing smoke exhaust fire damper is circle or rectangular,
Its smoke discharging pipe for being only capable of connection correspondingly-shaped, poor universality.
Utility model content
The purpose of the utility model is to provide a kind of smoke exhaust fire damper and smoke-exhaust fire systems, to solve existing skill
The mechanism that smoke exhaust fire damper present in art drives its inner vanes to rotate is unique, once driving mechanism is damaged, then causes to discharge fume
Fire resisting damper can not close, and lead to fire spreading, can not be separated, and then lead to huge loss, meanwhile, existing smoke-exhaust fire
The technical issues of poor universality of valve.
In order to solve the above technical problems, the utility model adopts the following technical solutions:
The utility model provides a kind of smoke exhaust fire damper, comprising: valve body, the first driving mechanism and the second driving machine
Structure；Wherein, the valve body is the structure of both ends open and inner hollow, is provided with multiple blades, and multiple institutes in the valve body
Blade is stated sequentially to arrange from the top down along the short transverse of the valve body；Multiple blades pass through connecting shaft and the valve
Body rotation connection；First driving mechanism is also disposed at outside the valve body, and first driving mechanism is multiple for driving
The connecting shaft drives the corresponding blade synchronization rotation；The quantity of second driving mechanism is multiple, and multiple described
Second driving mechanism is mutually corresponded with multiple blades, second driving mechanism setting the corresponding connecting shaft with
Between the valve body, second driving mechanism is also used for that multiple connecting shafts is driven to drive the corresponding blade synchronization rotation
Turn；The either end opening of the valve body is provided with dismountable connector, and the connector is for connecting and the valve
The different smoke discharging pipe of the opening shape of body.
Further, first driving mechanism includes driving device, driving gear, transmission gear and chain；Wherein,
The driving device is arranged in the outside wall surface of the valve body, and the driving geared sleeve is set to the output shaft of the driving device
On；The transmission gear is sheathed in the connecting shaft；The chain is set around the driving gear and the transmission gear
It sets；The driving gear and the transmission gear are meshed with the chain.
Further, second driving mechanism includes support frame, sliding slot body, magnet, electromagnet and dynamic clamping head and quiet clamping head；
Wherein, support frame as described above is arranged on the inner wall of the valve body, and the sliding slot body is arranged on support frame as described above, and the cunning
Groove body is centered around the outside wall surface setting of the connecting shaft；The magnet is arranged in the connecting shaft；It is opened up in the sliding slot body
There is sliding slot, and the magnet is placed in one end of the sliding slot, the magnet can be slided along the length direction of the sliding slot；
One end of the dynamic clamping head and quiet clamping head is connected with the one end side wall of the sliding slot, the other end of the dynamic clamping head and quiet clamping head with it is described
Magnet is connected；The fixed son of electromagnet is in the opposite other end of the sliding slot.
Further, the sliding slot body is arc strip structure, and the sliding slot is curved slot arrangement.
Further, it is provided with the mounting plate of annular at the both ends open of the valve body, is provided on the mounting plate
Installation through-hole.
Further, the connector includes ventilation case, the first connecting plate and the second connecting plate；Wherein, the wind-guiding
One end of shell is connected with first connecting plate, and the other end of the ventilation case is connected with second connecting plate；It is described
First connecting plate and second connecting plate are annular slab structure, and first connecting plate is adapted with the mounting plate；
First connecting plate is connected with the mounting plate, and second connecting plate is variform with the mounting plate for connecting
The smoke discharging pipe.
Further, first connecting plate passes through the fastener phase worn in the mounting through hole with the mounting plate
Connection.
Further, the smoke exhaust fire damper further includes battery group, the battery group and the driving device and
Electromagnet is connected, and the battery group is used to power to the driving device and electromagnet.
The utility model additionally provides a kind of smoke-exhaust fire system, including smoke-exhaust fire described in any of the above-described technical solution
Valve, thus, there is the smoke exhaust fire damper to obtain whole advantageous effects, here, repeating no more.
Compared with prior art, the technical solution of the utility model has the advantages that
Smoke exhaust fire damper provided by the utility model has the first driving mechanism and the second driving mechanism, and first drives
Motivation structure and the second driving mechanism can be operated alone multiple connecting shafts and drive corresponding blade synchronization rotation, thus play
The effect of double insurance, when one of driving mechanism when something goes wrong, another driving mechanism is still able to work, can
Driving blade rotation, and then fire behavior is cut off, safety coefficient and reliability are improved, in addition, in any open at one end of valve body
Place is provided with dismountable connector, it is thus achieved that the connection to the smoke discharging pipe different from its opening shape, versatility
By force.
Smoke-exhaust fire system provided by the utility model can effectively obstruct fire including smoke exhaust fire damper described above
The sprawling of feelings, safety coefficient are higher.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of smoke exhaust fire damper described in embodiment provided by the utility model；
Fig. 2 is enlarged structure schematic diagram of the Fig. 1 at A；
Fig. 3 is the another structural schematic diagram of smoke exhaust fire damper described in embodiment provided by the utility model；
Fig. 4 is enlarged structure schematic diagram of the Fig. 3 at B；
Fig. 5 is the structural representation that the second driving mechanism described in embodiment provided by the utility model and connecting shaft are specially matched
Figure；
Fig. 6 is the structural representation that smoke exhaust fire damper described in embodiment provided by the utility model is not provided with connector
Figure；
Fig. 7 shows for the another structure that smoke exhaust fire damper described in embodiment provided by the utility model is not provided with connector
It is intended to.
Description of symbols:
1- valve body, 101- mounting plate, 2- blade, 3- connecting shaft, the first driving mechanism of 4-, 401- driving device, 402- drive
Moving gear, 403- transmission gear, 404- chain, the second driving mechanism of 5-, 501- support frame, 502- sliding slot body, 5021- sliding slot,
503- magnet, 504- electromagnet, 505- dynamic clamping head and quiet clamping head, 6- connector, 601- ventilation case, the first connecting plate of 602-, 603-
Two connecting plates.
Specific embodiment
By explaining that the preferred embodiment of following the application, the other objects and advantages of the utility model will become clear
Chu.
The smoke exhaust fire damper according to the utility model some embodiments is described referring to Fig. 1 to Fig. 7 and smoke evacuation is anti-
Fiery system.
Referring to shown in Fig. 1 to Fig. 7, the embodiments of the present invention provide a kind of smoke exhaust fire damper, comprising: valve body 1,
One driving mechanism 4 and the second driving mechanism 5；Wherein, valve body 1 is the structure of both ends open and inner hollow, setting in valve body 1
There are multiple blades 2, and multiple blades 2 are sequentially arranged from the top down along the short transverse of valve body 1；Multiple blades 2 pass through company
Spindle 3 and valve body 1 are rotatablely connected；First driving mechanism 4 is also disposed at outside valve body 1, and the first driving mechanism 4 is multiple for driving
Connecting shaft 3 drives corresponding 2 synchronous rotary of blade；The quantity of second driving mechanism 5 is multiple, and multiple second driving mechanisms 5
It is corresponded with multiple 2 phases of blade, the second driving mechanism 5 is arranged between corresponding connecting shaft 3 and valve body 1, the second driving machine
Structure 5 is also used for that multiple connecting shafts 3 is driven to drive corresponding 2 synchronous rotary of blade；The either end opening of valve body 1 is provided with can
The connector 6 of disassembly, and connector 6 is used to connect the flange of the smoke discharging pipe different from the opening shape of valve body 1.
Smoke exhaust fire damper provided by the utility model has the first driving mechanism 4 and the second driving mechanism 5, and first
Driving mechanism 4 and the second driving mechanism 5 can be operated alone multiple connecting shafts 3 and drive corresponding 2 synchronous rotary of blade, because
And play the role of double insurance, when one of driving mechanism when something goes wrong, another driving mechanism is still able to work
Make, can driving blade 2 rotate, and then cut off fire behavior, safety coefficient and reliability are improved, in addition, in any of valve body 1
Place open at one end is provided with dismountable connector 6, it is thus achieved that the company of the smoke discharging pipe different from its opening shape
It connects, it is versatile.
Wherein, in the case where normal smoke evacuation, plane locating for opening of the blade 2 perpendicular to valve body 1, i.e., usually in unlatching
State, the closing when flue-gas temperature reaches 280 degree in smoke discharging pipe, the first driving mechanism 4 or the driving of the second driving mechanism 5 connect
Spindle 3 is rotated with movable vane piece 2, and the locating plane parallel so that blade 2 and valve body 1 are open, blade 2 plays the work every cigarette, back-fire relief
With.
Wherein, in figure 1 and the place open at one end of valve body shown in Fig. 31 be provided with dismountable connector 6, the other end
The not set connector 6 of opening is not limited only to this certainly, and connector 6 is arranged according to actual needs.
In one embodiment of the utility model, it is preferable that as depicted in figs. 1 and 2, the first driving mechanism 4 includes driving
Dynamic device 401, driving gear 402, transmission gear 403 and chain 404；Wherein, the outer of valve body 1 is arranged in driving device 401
On wall surface, driving gear 402 is sheathed on the output shaft of driving device 401；Transmission gear 403 is sheathed in connecting shaft 3；Chain
404 are arranged around driving gear 402 and transmission gear 403；Drive gear 402 and transmission gear 403 with 404 phase of chain
Engagement.
In this embodiment, the driving of driving device 401 driving gear 402 rotates, and driving gear 402 drives 404 turns of chain
Dynamic, chain 404 drives each transmission gear 403 to rotate in turn, and each transmission gear 403 drives connecting shaft 3 thereon to rotate, even
Spindle 3 drives blade 2 connected to it to rotate, and then the operation for playing closing smoke exhaust fire damper certainly, can after fire behavior
Driving device 401 is restarted, moving blade 2 opens this smoke exhaust fire damper, and it is above simple, convenient, and driving device
401, transmission gear 403 and chain 404 are respectively positioned on the outside of valve body 1, more securely and reliably, particularly with driving device 401
In addition to remote control control, more convenient adjusting also can be used using manual.
Wherein, driving device 401 can be motor, can also be other structures.
In one embodiment of the utility model, it is preferable that as shown in Figures 3 to 5, the second driving mechanism 5 includes branch
Support 501,5021 body 502 of sliding slot, magnet 503, electromagnet 503 and dynamic clamping head and quiet clamping head 505；Wherein, the setting of support frame 501 exists
On the inner wall of valve body 1,5021 body 502 of sliding slot is arranged on support frame 501, and 5021 body 502 of sliding slot is centered around connecting shaft 3
Outside wall surface setting；Magnet 503 is arranged in connecting shaft 3；Sliding slot 5021 is offered in 5021 body 502 of sliding slot, and magnet 503 is placed in
In one end of sliding slot 5021, magnet 503 can be slided along the length direction of sliding slot 5021；One end of dynamic clamping head and quiet clamping head 505 with
The one end side wall of sliding slot 5021 is connected, and the other end of dynamic clamping head and quiet clamping head 505 is connected with magnet 503；Electromagnet 503 is fixed
Son is in the opposite other end of sliding slot 5021.
In this embodiment, a kind of rotation of driving blade 2 is additionally provided, and then closes or open the knot of smoke exhaust fire damper
Structure has magnetism after electromagnet 503 is powered, and electromagnet 503 attracts magnet 503, and magnet 503 is along sliding slot 5021 towards electromagnetism
Iron 503 slides, and magnet 503 is able to drive the rotation of connecting shaft 3, and connecting shaft 3 drives blade 2 connected to it to rotate, Jin Erqi
To the operation for closing smoke exhaust fire damper, certainly, after fire behavior, electromagnet 503 can be made to power off, electromagnet 503 is to 503 nothing of magnet
Attraction, magnet 503 dynamic clamping head and quiet clamping head 505 pull effect under, be returned to original position, at the same time, connecting shaft 3 is in magnet
Also rotation is returned to original position under 503 induced effect, so that blade 2 is open locating Plane Rotation to vertical by being parallel to valve body 1
Directly be open in valve body 1 locating plane, that is, reopens this smoke exhaust fire damper, above simple, convenient, safer, can
It leans on, can especially play the role of double insurance.
Wherein, electromagnet 503 can also be passed through by being wired to external power supply or battery group, battery group
Whether manually or controller opens power supply.
In one embodiment of the utility model, it is preferable that as shown in figure 5, sliding slot body 502 is arc strip structure, and
Sliding slot 5021 is curved slot arrangement.
In this embodiment, sliding slot body 502 is arc strip structure, and sliding slot 5021 is curved slot arrangement, with connecting shaft 3
The curved path of rotation is adapted, so that magnet 503 is able to drive the sequentially rotational slide of connecting shaft 3.
In one embodiment of the utility model, it is preferable that as shown in figures 1 and 3, equal at the both ends open of valve body 1
It is provided with the mounting plate 101 of annular, is provided with installation through-hole on mounting plate 101.
In this embodiment, mounting plate 101 increases the contact area of 1 open edge of valve body, plays and is convenient for and connector 6
Or the effect directly with the flange assembly on smoke discharging pipe, mounting plate 101 can be plate-like structure, easily facilitate and connector
6 or smoke discharging pipe assembly, be of course not solely limited to this.
In one embodiment of the utility model, it is preferable that as shown in figures 1 and 3, connector 6 includes ventilation case
601, the first connecting plate 602 and the second connecting plate 603；Wherein, one end of ventilation case 601 is connected with the first connecting plate 602,
The other end of ventilation case 601 is connected with the second connecting plate 603；First connecting plate 602 and the second connecting plate 603 are annular
Hardened structure, the first connecting plate 602 are adapted with mounting plate 101；First connecting plate 602 is connected with mounting plate 101, the second connection
Plate 603 is for connecting and the variform smoke discharging pipe of mounting plate 101.
In this embodiment, the smoke discharging pipe when this smoke exhaust fire damper needs identical as the port shape of this valve body 1 connects
When connecing, directly the flange of the similar shape on smoke discharging pipe directly can be connected with mounting plate 101；When this smoke exhaust fire damper needs
When the smoke discharging pipe different from the port shape of this valve body 1 connects, first connecting plate 602 of this connector 6 can be mounted on peace
In loading board 101, then it will be connected on smoke discharging pipe with the flange on smoke discharging pipe.
When such as valve body 1 being square structure, opening thereon be it is rectangular, the flange of opening be accordingly it is rectangular, work as needs
When connecting round smoke discharging pipe, the flange of general circle smoke discharging pipe also circular ring shape, at this point, first connects available to connector 6
Fishplate bar 602 be rectangular ring structure, the second connecting plate 603 then use circular ring structure, thus the first connecting plate 602 can directly with peace
Loading board 101 is connected, and accordingly, the second connecting plate 603 is then connected with the flange of circular ring shape, to realize this smoke-exhaust fire
The connection of valve and smoke-exhaust pipeline.
Wherein, when mounting plate 101 is rectangular ring structure, the first mounting plate 101 is also rectangular ring structure, the second mounting plate
101 are circular ring structure；When mounting plate 101 is circular ring structure, the first mounting plate 101 is also circular ring structure, the second peace
Loading board 101 is then rectangular ring structure.
In one embodiment of the utility model, it is preferable that the first connecting plate 602 is with mounting plate 101 by being arranged in
Fastener in installation through-hole is connected.(not shown)
In this embodiment, the first connecting plate 602 is connected with mounting plate 101 by the fastener being arranged in installation through-hole
It connects, is easily installed and dismantles.Wherein, fastener is screw or bolt.
In one embodiment of the utility model, it is preferable that smoke exhaust fire damper further includes battery group, battery group with
Driving device 401 and electromagnet 503 are electrically connected, and battery group is used to power to driving device 401 and electromagnet 503.(figure
In be not shown)
In this embodiment, battery group can power for driving device 401 and electromagnet 503, reduce connecting line
Beam, it is safer and more reliable.
The embodiments of the present invention additionally provide a kind of smoke-exhaust fire system, including row described in any of the above-described embodiment
Cigarette fire resisting damper, thus, whole advantageous effects with the smoke exhaust fire damper, here, repeating no more.
In the present invention, term " multiple " then refers to two or more, unless otherwise restricted clearly.Term
The terms such as " installation ", " connected ", " connection ", " fixation " shall be understood in a broad sense, for example, " connection " may be a fixed connection,
It can be and be detachably connected, or be integrally connected；" connected " can be directly connected, and can also pass through the indirect phase of intermediary
Even.For the ordinary skill in the art, it can understand above-mentioned term in the present invention as the case may be
Concrete meaning.
In the present invention, the description of term " one embodiment ", " some embodiments ", " specific embodiment " etc. means
Particular features, structures, materials, or characteristics described in conjunction with this embodiment or example are contained at least one reality of the utility model
It applies in example or example.In the present specification, schematic expression of the above terms are not necessarily referring to identical embodiment or reality
Example.Moreover, the particular features, structures, materials, or characteristics of description can be in any one or more embodiment or examples to close
Suitable mode combines.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (9)
1. a kind of smoke exhaust fire damper characterized by comprising valve body (1), the first driving mechanism (4) and the second driving mechanism
(5)；
Wherein, the valve body (1) is the structure of both ends open and inner hollow, is provided with multiple blades in the valve body (1)
(2), and multiple blades (2) are sequentially arranged from the top down along the short transverse of the valve body (1)；Multiple blades
(2) it is rotatablely connected by connecting shaft (3) and the valve body (1)；
First driving mechanism (4) is also disposed at the valve body (1) outside, and first driving mechanism (4) is more for driving
A connecting shaft (3) drives corresponding blade (2) synchronous rotary；The quantity of second driving mechanism (5) be it is multiple,
And multiple second driving mechanisms (5) mutually correspond with multiple blades (2), the second driving mechanism (5) setting
Between the corresponding connecting shaft (3) and the valve body (1), first driving mechanism (4) is also used for driving multiple described
Connecting shaft (3) drives corresponding blade (2) synchronous rotary；
The either end opening of the valve body (1) is provided with dismountable connector (6), and the connector (6) is for connecting
Connect the flange of the smoke discharging pipe different from the opening shape of the valve body (1).
2. smoke exhaust fire damper according to claim 1, which is characterized in that first driving mechanism (4) includes driving dress
Set (401), driving gear (402), transmission gear (403) and chain (404)；
Wherein, the driving device (401) is arranged in the outside wall surface of the valve body (1), and the driving gear (402) is sheathed on
On the output shaft of the driving device (401)；The transmission gear (403) is sheathed on the connecting shaft (3)；The chain
(404) it is arranged around the driving gear (402) and the transmission gear (403)；The driving gear (402) and described
Transmission gear (403) is meshed with the chain (404).
3. smoke exhaust fire damper according to claim 1, which is characterized in that second driving mechanism (5) includes support frame
(501), sliding slot body (502), magnet (503), electromagnet (504) and dynamic clamping head and quiet clamping head (505)；
Wherein, support frame as described above (501) is arranged on the inner wall of the valve body (1), and the sliding slot body (502) is arranged described
On support frame (501), and the sliding slot body (502) is centered around the outside wall surface setting of the connecting shaft (3)；The magnet (503)
It is arranged on the connecting shaft (3)；It is offered sliding slot (5021) in the sliding slot body (502), and the magnet (503) is placed in institute
In the one end for stating sliding slot (5021), the magnet (503) can be slided along the length direction of the sliding slot (5021)；
One end of the dynamic clamping head and quiet clamping head (505) is connected with the one end side wall of the sliding slot (5021), the elastic reset
The other end of part (505) is connected with the magnet (503)；The fixed son of electromagnet (504) is in the sliding slot (5021)
In the opposite other end.
4. smoke exhaust fire damper according to claim 3, which is characterized in that the sliding slot body (502) is arc strip structure, and
The sliding slot (5021) is curved slot arrangement.
5. smoke exhaust fire damper according to any one of claim 1 to 4, which is characterized in that open at the both ends of the valve body (1)
It is provided with the mounting plate (101) of annular at mouthful, is provided with installation through-hole on the mounting plate (101).
6. smoke exhaust fire damper according to claim 5, which is characterized in that the connector (6) include ventilation case (601),
First connecting plate (602) and the second connecting plate (603)；
Wherein, one end of the ventilation case (601) is connected with first connecting plate (602), the ventilation case (601) it is another
One end is connected with second connecting plate (603)；First connecting plate (602) and second connecting plate (603) are equal
For annular slab structure, first connecting plate (602) is adapted with the mounting plate (101)；First connecting plate (602) with
The mounting plate (101) is connected, and second connecting plate (603) is variform with the mounting plate (101) for connecting
The flange of the smoke discharging pipe.
7. smoke exhaust fire damper according to claim 6, which is characterized in that first connecting plate (602) and the installation
Plate (101) passes through the fastener worn in the mounting through hole and is connected.
8. smoke exhaust fire damper according to claim 2, which is characterized in that the smoke exhaust fire damper further includes battery group,
The battery group is connected with the driving device (401) and electromagnet (504), and the battery group is used for the drive
Dynamic device (401) and the electromagnet (504) power supply.
9. a kind of smoke-exhaust fire system, which is characterized in that including smoke exhaust fire damper such as described in any item of the claim 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920041663.6U CN209444824U (en) | 2019-01-10 | 2019-01-10 | Smoke exhaust fire damper and smoke-exhaust fire system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920041663.6U CN209444824U (en) | 2019-01-10 | 2019-01-10 | Smoke exhaust fire damper and smoke-exhaust fire system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209444824U true CN209444824U (en) | 2019-09-27 |
Family
ID=68017383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920041663.6U Active CN209444824U (en) | 2019-01-10 | 2019-01-10 | Smoke exhaust fire damper and smoke-exhaust fire system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209444824U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111140685A (en) * | 2020-01-06 | 2020-05-12 | 柏瑞润兴（北京）科技发展有限公司 | Smoke-discharging fire-proof valve |
-
2019
- 2019-01-10 CN CN201920041663.6U patent/CN209444824U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111140685A (en) * | 2020-01-06 | 2020-05-12 | 柏瑞润兴（北京）科技发展有限公司 | Smoke-discharging fire-proof valve |
| CN111140685B (en) * | 2020-01-06 | 2022-05-06 | 柏瑞润兴（北京）科技发展有限公司 | Smoke-discharging fire-proof valve |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 253308 Luquantun Economic Development Zone, Wucheng County, Dezhou City, Shandong Province Patentee after: Shunda air conditioning equipment Group Co.,Ltd. Address before: 253308 Luquantun Economic Development Zone, Wucheng County, Dezhou City, Shandong Province Patentee before: SHANDONG COUNTY SHUNDA AIR CONDITIONING EQUIPMENT CO.,LTD. |
|
| CP01 | Change in the name or title of a patent holder |