CN208294381U - It is a kind of singly to open every cigarette fire resistant doorsets - Google Patents
It is a kind of singly to open every cigarette fire resistant doorsets Download PDFInfo
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- CN208294381U CN208294381U CN201820911220.3U CN201820911220U CN208294381U CN 208294381 U CN208294381 U CN 208294381U CN 201820911220 U CN201820911220 U CN 201820911220U CN 208294381 U CN208294381 U CN 208294381U
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- resistant doorsets
- fire resistant
- door leaf
- fire
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Abstract
The utility model provide it is a kind of singly open every cigarette fire resistant doorsets, be related to fire-fighting equipment technical field.It includes doorframe, door leaf, door closer, the first inductor and fume absorbent cylinder that this, which is singly opened every cigarette fire resistant doorsets,；Door leaf is articulated with doorframe；Door closer is set on door leaf between edge and doorframe inside top；Fume absorbent cylinder is articulated with doorframe, closes after door leaf and puts down fume absorbent cylinder, fume absorbent cylinder can close proximity to ground, and it is parallel with the lower edge of door leaf；Fume absorbent cylinder side wall is provided with multiple through-holes；First inductor is set to doorframe inner wall, and is electrically connected with fume absorbent cylinder.Singly opening every cigarette fire resistant doorsets for the utility model, can be after occurring fire due to being provided with the first inductor and fume absorbent cylinder, fume absorbent cylinder is started by the first inductor in time, fume absorbent is implemented to the gap of fire resistant doorsets lower edge, prevents smog sprawling, prevents the further expansion of disaster.
Description
Technical field
The utility model relates to fire-fighting equipment technical fields, singly open in particular to a kind of every cigarette fire resistant doorsets.
Background technique
Fire resistant doorsets are the fire separations for being located at fire protection interval, emergency staircase, vertical shaft etc. and having certain fire resistance
Object is able to satisfy fire stability, integrality and thermal insulation requirement within a certain period of time.
Fire resistant doorsets have the function of preventing fire spreading and flue gas diffusion other than having the function of common door, can be
The sprawling of the intensity of a fire is prevented in certain time, it is ensured that personnel evacuate in time, ensure the safety of people's lives and properties.
Traditional fire resistant doorsets are provided with doorframe, door-plate, door closer and fireproofing glue strip, and middle door-plate is filled with fire proofing material.
However, in actual use, being especially not provided in the fire resistant doorsets of threshold, the gap between door-plate and bottom plate cannot be effective
Blocking, smog are easy to spread to non-fire place from the gap, embody the function of fire resistant doorsets cannot.And fire
In, influence of the smog to resident's life security is even huger than flare itself.
So how to improve the structure design of the fire resistant doorsets especially fire resistant doorsets without threshold, switch gate efficiency, enhancing are improved
Fire-proof smoke insulation effect is those skilled in the art's urgent problem to be solved.
Utility model content
It singly opens the purpose of this utility model is to provide a kind of every cigarette fire resistant doorsets, is deposited with solving fire resistant doorsets in the prior art
It is low without threshold fire resistant doorsets flameproof effect the problems such as.
To achieve the goals above, the utility model uses following technical scheme:
It is provided by the utility model it is a kind of singly open every cigarette fire resistant doorsets, including doorframe, door leaf, door closer, the first inductor and
Fume absorbent cylinder；The door leaf is articulated with the doorframe；The door closer is set to edge and doorframe top on the door leaf
Between inside；The fume absorbent cylinder is articulated with the doorframe, puts down the fume absorbent cylinder, the cigarette after closing the door leaf
Mist absorbing barrel can close proximity to ground, and it is parallel with the lower edge of the door leaf；The fume absorbent cylinder side wall is provided with multiple through-holes；
First inductor is set to the doorframe inner wall, and is electrically connected with the fume absorbent cylinder.
It based on the above technical solution, further, further include the first expansion adhesive tape, the second expansion adhesive tape, automatically-controlled door
Lock and the second inductor；The automatic door lock is set on the door leaf between edge and the doorframe inside top；The doorframe
Vertical inner wall is set as ladder end face, and the corresponding end face of the door leaf is correspondingly arranged as ladder end face, the first expansion adhesive tape
The ladder end face of the ladder end face and the door leaf of the doorframe is respectively arranged at the second expansion adhesive tape；Second sense
It answers device to be set to the side of the door leaf contact flare, and is electrically connected with the automatic door lock.The technical effect of the technical solution
Be: the second inductor is used for after fire generation, is influenced by fire heat, smog and illumination, timely feedbacks instruction
It controls automatic door lock and closes fire resistant doorsets, prevent the intensity of a fire continues sprawling and the infiltration of smog.In order to promptly and accurately obtain fire letter
The side of fire resistant doorsets contact flare should be arranged in breath, the inductor.And the first expansion adhesive tape, the second expansion adhesive tape can be improved door
The obturation effect of frame and door leaf.
It based on the above technical solution, further, further include fire resistant doorsets handle；The fire resistant doorsets handle and the automatically-controlled door
Lock connection, is set to two sides of the door leaf.The technical solution has the technical effect that due to preventing after fire occurs
Effect of the vent in addition to needing to guarantee isolation pyrotechnics, can't prevent the disengaging of personnel, so, automatic door lock should be able to also be by
Artificial control is opened.And in the emergency that fire occurs, what people touched first is fire resistant doorsets handle certainly, therefore will be started certainly
The device and fire resistant doorsets of dynamic door interlock switch guarantee that people can control the switch of fire resistant doorsets in time linkage is realized, while in people
It is re-closing off fire resistant doorsets in time after member's disengaging.
Based on the above technical solution, further, second inductor be temperature inductor, smoke inductor or
Person's infrared inductor.The technical solution has the technical effect that improve the reliability of automatic door lock, and different occasions
Fire condition, the second inductor can select different types: occasion such as less in fire hazard aerosol fog can select temperature sense
Device or infrared inductor are answered, and in the biggish occasion of smog, select smoke inductor.
It further include warning device further on the basis of any of the above-described technical solution；The warning device is set to institute
It states on door leaf, is electrically connected with second inductor.The technical solution have the technical effect that fire occur when, general cigarette
Mist is all larger, or since fire occurred at night, people are difficult in case of emergency immediately find outlet, so in fire resistant doorsets
It is upper to be provided with warning device, escape route is quickly found for the people in fire, and convenience is provided.
Based on the above technical solution, further, the warning device is illumination highlights lamp or buzzer.The skill
The position for having the technical effect that illumination highlights lamp and people being helped with the naked eye to find fire resistant doorsets of art scheme, and buzzer helps people
Visual effect difference in the case where with ear discovery fire resistant doorsets specific location, for people provide escape promptly and accurately believe
Breath.
It further include flame resistant glass further on the basis of any of the above-described technical solution；The flame resistant glass is set to institute
It states on door leaf.The technical solution has the technical effect that flame resistant glass in addition to helping disaster affected people accurately to learn outside fire resistant doorsets
Information, also help fire fighter accurately obtain the fire condition inside fire resistant doorsets.
It further include fire prevention abatjour further on the basis of any of the above-described technical solution；The fire prevention abatjour is set to institute
State the top of doorframe.The technical solution has the technical effect that fire prevention abatjour is located at the top of doorframe, is on the one hand fire place
Light is provided, the weight of door body on the other hand can be reduced, provides convenience in fire resistant doorsets transport, installation.
It further include fire-fighting rope further on the basis of any of the above-described technical solution；The fire-fighting rope is built in institute
State the side of door leaf contact flare.The technical solution have the technical effect that fire-fighting rope behave provide another escape work
Tool, the escape especially suitable for high-rise fire.
It further include fire-fighting storage tank further on the basis of any of the above-described technical solution, the fire-fighting storage tank setting
In the door leaf, fireprotection layer is arranged in inner wall, and the fire-fighting storage tank is equipped with display sign.The technical effect of the technical solution exists
In: fire-fighting storage tank for placing fire-fighting rope, display sign helps disaster-stricken people smoothly to find the riding position of fire-fighting rope.
The utility model has the following beneficial effects:
It is provided by the utility model singly to open every cigarette fire resistant doorsets, it, can due to being provided with the first inductor and fume absorbent cylinder
After fire occurs, fume absorbent cylinder is started by the first inductor in time, fume absorbent is implemented to the gap of fire resistant doorsets lower edge,
Prevent smog sprawling, prevents the further expansion of disaster.
The additional technical feature and its advantage of the utility model will be illustrated in following description content it is more obvious, or
It is recognized that by the concrete practice of the utility model.
Detailed description of the invention
It, below will be to specific embodiment in order to illustrate more clearly of the technical solution of specific embodiment of the present invention
Attached drawing needed in description is briefly described.It should be evident that the accompanying drawings in the following description is the utility model
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 singly opens the schematic structural cross-sectional view every cigarette fire resistant doorsets to be provided by the embodiment of the utility model；
Fig. 2 singly opens the outline structural diagram every cigarette fire resistant doorsets to be provided by the embodiment of the utility model；
Fig. 3 is that the contour structures provided by the embodiment of the utility model singly opened after cigarette fire resistant doorsets put down fume absorbent cylinder show
It is intended to；
Fig. 4 singly opens the contour structures signal every fume absorbent cylinder in cigarette fire resistant doorsets to be provided by the embodiment of the utility model
Figure；
Fig. 5 singly opens the structural schematic diagram every automatic door lock in cigarette fire resistant doorsets to be provided by the embodiment of the utility model.
Icon: 1- doorframe；2- door leaf；3- door closer；4- first expands adhesive tape；5- second expands adhesive tape；6- automatic door lock；
The second inductor of 7-；8- fire resistant doorsets handle；9- warning device；10- flame resistant glass；11- fire prevention abatjour；12- fire-fighting storage tank；13-
Fire-fighting rope；14- display sign；The first inductor of 15-；16- fume absorbent cylinder；17- through-hole.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
DESCRIPTION OF THE PRIOR ART:
Fire resistant doorsets are the fire separations for being located at fire protection interval, emergency staircase, vertical shaft etc. and having certain fire resistance
Object is able to satisfy fire stability, integrality and thermal insulation requirement within a certain period of time.
Fire resistant doorsets have the function of preventing fire spreading and flue gas diffusion other than having the function of common door, can be
The sprawling of the intensity of a fire is prevented in certain time, it is ensured that personnel evacuate in time, ensure the safety of people's lives and properties.
Traditional fire resistant doorsets are provided with doorframe 1, door-plate, door closer 3 and fireproofing glue strip, and middle door-plate is filled with fire proofing wood
Material.However, in actual use, being especially not provided in the fire resistant doorsets of threshold, the gap between door-plate and bottom plate cannot have
The blocking of effect, smog are easy to spread to non-fire place from the gap, embody the function of fire resistant doorsets cannot.And
In fire, influence of the smog to resident's life security is even huger than flare itself.
Technical solutions of the utility model are summarized:
It is provided in this embodiment singly to open every cigarette fire resistant doorsets, including doorframe 1, door leaf 2, door closer 3, the first inductor 15 and cigarette
Mist absorbing barrel 16.Specifically, door leaf 2 is articulated with doorframe 1；Door closer 3 is set on door leaf 2 between 1 inside top of edge and doorframe；
Fume absorbent cylinder 16 is articulated with doorframe 1, closes after door leaf 2 and puts down fume absorbent cylinder 16, fume absorbent cylinder 16 can close proximity to ground,
And it is parallel with the lower edge of door leaf 2；16 side wall of fume absorbent cylinder is provided with multiple through-holes 17；First inductor 15 is set to doorframe 1
Inner wall, and be electrically connected with fume absorbent cylinder 16.
It is above-mentioned singly to open the technical solution every cigarette fire resistant doorsets, it can preferably solve nothing existing for fire resistant doorsets in the prior art
The problems such as threshold fire resistant doorsets flameproof effect is low: due to being provided with the first inductor 15 and fume absorbent cylinder 16, can occur
After fire, fume absorbent cylinder 16 is started by the first inductor 15 in time, fume absorbent, Du are implemented to the gap of fire resistant doorsets lower edge
Exhausted smog sprawling, prevents the further expansion of disaster.
For above-mentioned prior art, below with reference to specific embodiment to the utility model
Technical solution explanation is further explained:
Present embodiments provide a kind of singly open every cigarette fire resistant doorsets, in which: Fig. 1 singly opens to be provided by the embodiment of the utility model
Every the schematic structural cross-sectional view of cigarette fire resistant doorsets；Fig. 2 is the shape knot provided by the embodiment of the utility model singly opened every cigarette fire resistant doorsets
Structure schematic diagram；Fig. 3 is the shape knot provided by the embodiment of the utility model singly opened after cigarette fire resistant doorsets put down fume absorbent cylinder 16
Structure schematic diagram；Fig. 4 is that the contour structures provided by the embodiment of the utility model singly opened every fume absorbent cylinder 16 in cigarette fire resistant doorsets show
It is intended to；Fig. 5 singly opens the structural schematic diagram every automatic door lock 6 in cigarette fire resistant doorsets to be provided by the embodiment of the utility model.As Fig. 1~
Shown in 5, singly opening every cigarette fire resistant doorsets includes doorframe 1, door leaf 2, door closer 3, the first inductor 15 and fume absorbent cylinder 16.Wherein,
Door leaf 2 is articulated with doorframe 1；Door closer 3 is set on door leaf 2 between 1 inside top of edge and doorframe；Fume absorbent cylinder 16 is articulated with
Doorframe 1 puts down fume absorbent cylinder 16 after closing door leaf 2, fume absorbent cylinder 16 can close proximity to ground, and it is flat with the lower edge of door leaf 2
Row；16 side wall of fume absorbent cylinder is provided with multiple through-holes 17；First inductor 15 is set to 1 inner wall of doorframe, and and fume absorbent
Cylinder 16 is electrically connected.
On the basis of the above embodiments, as shown in Figure 1, further including the expansion of the first expansion adhesive tape 4, second further
Adhesive tape 5, automatic door lock 6 and the second inductor 7.Wherein, automatic door lock 6 be set on door leaf 2 edge and 1 inside top of doorframe it
Between；The vertical inner wall of doorframe 1 is set as ladder end face, and the corresponding end face of door leaf 2 is correspondingly arranged as ladder end face, the first expansion adhesive tape
4 and second expansion adhesive tape 5 be respectively arranged at the ladder end face of doorframe 1 and the ladder end face of door leaf 2；Second inductor 7 is set to
Door leaf 2 contacts the side of flare, and is electrically connected with automatic door lock 6.In singly opening every in cigarette fire resistant doorsets for the structure, the second inductor
7, for being influenced after fire generation by fire heat, smog and illumination, timely feedback instruction control automatic door lock 6 and close
Fire resistant doorsets are closed, prevent the intensity of a fire continues sprawling and the infiltration of smog.In order to promptly and accurately obtain fire information, which should be set
It sets in the side of fire resistant doorsets contact flare.And the first expansion adhesive tape 4, second expands adhesive tape 5 and can be improved doorframe 1 and door leaf 2
Obturation effect.
It on the basis of the above embodiments, as shown in Figure 1, 2, 3, further, further include fire resistant doorsets 8；Fire resistant doorsets are 8
It is connect with automatic door lock 6, is set to two sides of door leaf 2.In singly opening every in cigarette fire resistant doorsets for the structure, due to being sent out in fire
After life, effect of the fire resistant doorsets in addition to needing to guarantee isolation pyrotechnics can't prevent the disengaging of personnel, so, automatic door lock 6 is also answered
This can be by artificially controlling opening.And in the emergency that fire occurs, what people touched first is fire resistant doorsets certainly 8,
Therefore linkage is realized 8 by device and fire resistant doorsets that automatic door lock 6 switchs is started, guarantee that people can control opening for fire resistant doorsets in time
It closes, while being re-closing off fire resistant doorsets in time after personnel's disengaging.
On the basis of the above embodiments, as shown in Figure 1, 2, 3, further, the second inductor 7 be temperature inductor,
Smoke inductor or infrared inductor.In singly opening every in cigarette fire resistant doorsets for the structure, in order to improve the reliable of automatic door lock 6
Property, and the fire condition of different occasion, the second inductor 7 can select different types: it is such as less in fire hazard aerosol fog
Occasion can select temperature inductor or infrared inductor, and in the biggish occasion of smog, select smoke inductor.
It on the basis of the above embodiments, as shown in Figure 1, 2, 3, further, further include warning device 9；Warning device 9
It is set on door leaf 2, is electrically connected with the second inductor 7.The structure is singly opened every cigarette fire resistant doorsets, when fire occurs, general cigarette
Mist is all larger, or since fire occurred at night, people are difficult in case of emergency immediately find outlet, so in fire resistant doorsets
It is upper to be provided with warning device 9, escape route is quickly found for the people in fire, and convenience is provided.
On the basis of the above embodiments, as shown in Figure 1, 2, 3, further, warning device 9 be illumination highlights lamp or
Buzzer.In singly opening every in cigarette fire resistant doorsets for the structure, illumination highlights lamp help people with the naked eye have found the position of fire resistant doorsets, and
Buzzer helps people, with the specific location of ear discovery fire resistant doorsets, to provide timely standard in the case where visual effect difference for people
True escape information.
It on the basis of the above embodiments, as shown in Figure 1, 2, 3, further, further include flame resistant glass 10；Flame resistant glass
10 are set on door leaf 2.In singly opening every in cigarette fire resistant doorsets for the structure, flame resistant glass 10 is in addition to helping disaster affected people accurately to learn
Information outside fire resistant doorsets also helps fire fighter accurately to obtain the fire condition inside fire resistant doorsets.
It on the basis of the above embodiments, as shown in Figure 1, 2, 3, further, further include fire prevention abatjour 11；Fire prevention abatjour
11 are set to the top of doorframe 1.In singly opening every in cigarette fire resistant doorsets for the structure, fire prevention abatjour 11 is located at the top of doorframe 1, a side
Face provides light for fire place, on the other hand can reduce the weight of door body, provides convenience in fire resistant doorsets transport, installation.
It on the basis of the above embodiments, as shown in Figure 1, 2, 3, further, further include fire-fighting rope 13；Fire-fighting rope
13 are built in the side that door leaf 2 contacts flare.In singly opening every in cigarette fire resistant doorsets for the structure, fire-fighting rope 13 provides separately for people
One escaping tool, the escape especially suitable for high-rise fire.
It on the basis of the above embodiments, further, as shown in Figure 1, 2, 3, further include fire-fighting storage tank 12, fire-fighting storage
Object case 12 is set to door leaf 2, and fireprotection layer is arranged in inner wall, and fire-fighting storage tank 12 is equipped with display sign 14.In singly opening for the structure
Every in cigarette fire resistant doorsets, for placing fire-fighting rope 13, display sign 14 helps disaster-stricken people smoothly to find to disappear fire-fighting storage tank 12
The riding position of anti-rope 13.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (10)
1. a kind of singly open every cigarette fire resistant doorsets, which is characterized in that including doorframe, door leaf, door closer, the first inductor and fume absorbent
Cylinder；
The door leaf is articulated with the doorframe；The door closer be set on the door leaf edge and the doorframe inside top it
Between；
The fume absorbent cylinder is articulated with the doorframe, puts down the fume absorbent cylinder after closing the door leaf, the smog is inhaled
Receive cylinder can close proximity to ground, and it is parallel with the lower edge of the door leaf；
The fume absorbent cylinder side wall is provided with multiple through-holes；First inductor is set to the doorframe inner wall, and with institute
State the electrical connection of fume absorbent cylinder.
2. according to claim 1 singly open every cigarette fire resistant doorsets, which is characterized in that further include the first expansion adhesive tape, second swollen
Swollen adhesive tape, automatic door lock and the second inductor；
The automatic door lock is set on the door leaf between edge and the doorframe inside top；
The vertical inner wall of doorframe is set as ladder end face, and the corresponding end face of the door leaf is correspondingly arranged as ladder end face, described
First expansion adhesive tape and the second expansion adhesive tape are respectively arranged at the stepped end of the ladder end face and the door leaf of the doorframe
Face；
Second inductor is set to the side of the door leaf contact flare, and is electrically connected with the automatic door lock.
3. according to claim 2 singly open every cigarette fire resistant doorsets, which is characterized in that further include fire resistant doorsets handle；The fire resistant doorsets
Connecting with the automatic door lock, it is set to two sides of the door leaf.
4. according to claim 2 singly open every cigarette fire resistant doorsets, which is characterized in that second inductor is temperature sense
Device, smoke inductor or infrared inductor.
5. according to claim 2 singly open every cigarette fire resistant doorsets, which is characterized in that further include warning device；The alarm dress
It installs and is placed on the door leaf, be electrically connected with second inductor.
6. according to claim 5 singly open every cigarette fire resistant doorsets, which is characterized in that the warning device be illumination highlights lamp or
Person's buzzer.
7. according to claim 1 singly open every cigarette fire resistant doorsets, which is characterized in that further include flame resistant glass；The fire prevention glass
Glass is set on the door leaf.
8. according to claim 1 singly open every cigarette fire resistant doorsets, which is characterized in that further include fire prevention abatjour；It is described prevent it is bright
Window is set to the top of the doorframe.
9. according to claim 1 singly open every cigarette fire resistant doorsets, which is characterized in that further include fire-fighting rope；The belt line
Rope is built in the side of the door leaf contact flare.
10. according to claim 9 singly open every cigarette fire resistant doorsets, which is characterized in that further include fire-fighting storage tank, the fire-fighting
Storage tank is set to the door leaf, and fireprotection layer is arranged in inner wall, and the fire-fighting storage tank is equipped with display sign.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820911220.3U CN208294381U (en) | 2018-06-12 | 2018-06-12 | It is a kind of singly to open every cigarette fire resistant doorsets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820911220.3U CN208294381U (en) | 2018-06-12 | 2018-06-12 | It is a kind of singly to open every cigarette fire resistant doorsets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208294381U true CN208294381U (en) | 2018-12-28 |
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ID=64701340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820911220.3U Active CN208294381U (en) | 2018-06-12 | 2018-06-12 | It is a kind of singly to open every cigarette fire resistant doorsets |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111456605A (en) * | 2020-06-09 | 2020-07-28 | 象山奋凡消防科技有限公司 | Fire-fighting safety door |
| CN114704184A (en) * | 2022-04-02 | 2022-07-05 | 安徽双鹏实业有限公司 | Anti-smoke type fireproof door |
-
2018
- 2018-06-12 CN CN201820911220.3U patent/CN208294381U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111456605A (en) * | 2020-06-09 | 2020-07-28 | 象山奋凡消防科技有限公司 | Fire-fighting safety door |
| CN114704184A (en) * | 2022-04-02 | 2022-07-05 | 安徽双鹏实业有限公司 | Anti-smoke type fireproof door |
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