CN209195235U - A kind of prying-resistant structure of fire resistant doorsets - Google Patents
A kind of prying-resistant structure of fire resistant doorsets Download PDFInfo
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- CN209195235U CN209195235U CN201821171689.4U CN201821171689U CN209195235U CN 209195235 U CN209195235 U CN 209195235U CN 201821171689 U CN201821171689 U CN 201821171689U CN 209195235 U CN209195235 U CN 209195235U
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- doorframe
- door leaf
- prying
- main frame
- door
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Abstract
The utility model discloses a kind of prying-resistant structures of fire resistant doorsets, it is related to fire resistant doorsets field, it include doorframe structure and door leaf structure, doorframe structure includes for installing the main frame of the doorframe of door latch structure, and the vertical side of the main frame of doorframe has extended to form doorframe stile prying and pick-proof rib, and doorframe stile prying and pick-proof rib are shaped in the outside of the main frame of doorframe and form step structure；Door leaf structure includes for installing the main frame of the door leaf of door latch structure and door leaf stile prying.When closing fire resistant doorsets, door leaf stile prying is abutted against with pick-proof rib, and the lateral surface of the lateral surface of doorframe stile prying and door leaf stile prying constitutes planar structure.The bound edge for the L-type structure that doorframe stile prying and pick-proof rib are constituted coats door leaf stile prying; gap very little i.e. between doorframe stile prying and door leaf stile prying; pry tool etc. is difficult in the gap for protruding into the two; to achieve the purpose that protect door latch structure and door skin, and then realize the tamper-resistant function of fire resistant doorsets.
Description
Technical field
The utility model relates to fire resistant doorsets fields, more particularly, to a kind of prying-resistant structure of fire resistant doorsets.
Background technique
Fire resistant doorsets refer to and are set to fire protection interval, emergency staircase and vertical shaft etc., meet within a certain period of time
The fire protection separators that fire stability, integrality and thermal insulation require.Fire resistant doorsets also have in addition to having the function of common door
The effect of fire spreading and diffusion of delaying is prevented in certain time, can be withdrawn and be raced against time for personnel.
Existing Authorization Notice No. is the Chinese patent of CN204357310U, and it discloses a kind of steel that door lock pick-proof performance is good
Matter house lead in door leaf includes to be set to the door skin made of steel plate of the inside and outside two sides of door leaf skeleton, and set on door skin
It is equipped with door lock.Door lock includes external lock cover panel and internal lock cover panel, and is connected between external lock cover panel and internal lock cover panel
Lock body.External lock cover panel and internal lock cover panel, which are embedded, to be fixed on corresponding door skin, then locking closure panel and door leaf face
Gap is fitted without between plate, to achieve the purpose that pick-proof.
When door leaf is embedded in doorframe and locks door lock, door skin is equipped with the vertical side of door lock and erecting for doorframe
There are biggish fit clearances between straight edge frame, and the pry tools such as crowbar can be embedded in the fit clearance, and be agitated outward
The internal structure and door skin for destroying door lock, lead to door lock and the door skin damage of fire resistant doorsets, and prior art presence can change
Into place.
Utility model content
In view of the above technical problems, the purpose of this utility model is to provide a kind of prying-resistant structure of fire resistant doorsets, pass through door
Mount structure and door leaf structure, which match, blocks door latch structure, to achieve the purpose that protect door latch structure and door skin, Jin Ershi
The purpose of existing pick-proof.
To achieve the above object, the utility model provides following technical solution: a kind of prying-resistant structure of fire resistant doorsets, including
The door leaf structure for having doorframe structure and being used cooperatively with doorframe structure, the doorframe structure include for installing door latch structure
The main frame of doorframe, and the vertical side of the main frame of the doorframe towards doorframe internal stretch be formed with doorframe stile prying and pick-proof gear
Side；The doorframe stile prying and pick-proof rib are vertically arranged, and the doorframe stile prying and pick-proof rib are shaped in door
The outside of the main frame of frame simultaneously forms step structure；The door leaf structure include for install the main frame of the door leaf of door latch structure and
Door leaf stile prying for being used in combination with pick-proof rib, the door leaf stile prying is by the vertical side of the main frame of door leaf towards far
Direction from door leaf extends to form, and the door leaf stile prying is shaped in the outside of the main frame of door leaf and is vertically arranged；It is described
Door leaf stile prying is abutted against with pick-proof rib, and the lateral surface of the lateral surface of the doorframe stile prying and door leaf stile prying is constituted and put down
Face structure, door latch structure are embedded in the main frame of the doorframe and the main frame of door leaf.
By using above-mentioned technical proposal, the doorframe stile prying and pick-proof rib of doorframe structure constitute step structure and one
The body formed outside in the main frame of doorframe, and the door leaf stile prying of door leaf structure is equally shaped in the outside of the main frame of door leaf；Then
When user closes fire resistant doorsets, the main frame of door leaf is embedded in the main frame of doorframe, the lateral surface and door leaf stile prying of doorframe stile prying
Lateral surface constitute planar structure, and door leaf stile prying is bonded and is connected on doorframe stile prying；
The L-type structure bound edge that doorframe stile prying and pick-proof rib are constituted coats door leaf stile prying, i.e. doorframe stile prying and door
The gap very little between stile prying is fanned, pry tool etc. is difficult in the gap for protruding into the two；Even if pry tool partially protrudes into two
In the gap of person, pry tool is also directly to be connected on pick-proof rib, is not in contact with door latch structure, more because of gap width
With depth very little, pry tool is difficult to directly agitate door leaf structure outward, to reach protection door latch structure and door skin
Purpose, and then realize the tamper-resistant function of fire resistant doorsets.
The utility model is further arranged to: the upper end horizontal sides of the main frame of doorframe are formed with towards doorframe internal stretch
Doorframe assists stile prying and auxiliary rib, and doorframe auxiliary stile prying is shaped in the outer of the main frame of doorframe with rib is assisted
Side simultaneously forms step structure；The direction that the upper end horizontal sides of the main frame of door leaf are directed away from the main frame of door leaf has extended to form door
Fan auxiliary stile prying；The door leaf auxiliary stile prying is abutted against with auxiliary rib, and the lateral surface of doorframe auxiliary stile prying
Planar structure is constituted with the lateral surface of door leaf auxiliary stile prying.
By using above-mentioned technical proposal, when closing fire resistant doorsets, doorframe assists stile prying and assists the L-type of rib composition
Structure bound edge coats door leaf and assists stile prying, then the gap very little between doorframe auxiliary stile prying and door leaf auxiliary stile prying, sled
Power driven tools etc. are difficult to agitate door skin outward from the upper end horizontal sides of the main frame of doorframe, reach and further increase the anti-of fire resistant doorsets
Prize the purpose of performance.
The utility model is further arranged to: be formed in the lower end horizontal sides of the main frame of doorframe for the main frame of door leaf
Lower end horizontal sides abut against the step structure of cooperation.
By using above-mentioned technical proposal, when closing fire resistant doorsets, the lower end horizontal sides of the main frame of door leaf are connected to ladder-like
At structure, i.e., the main frame lower end horizontal sides of doorframe step structure cladding the main frame of door leaf lower end horizontal sides, to reach further
Improve the purpose of the pick-proof performance of fire resistant doorsets.
The utility model is further arranged to: side of the main frame of doorframe in door is formed with gear frame, and the gear
Frame is contacted with the main frame of door leaf.
By using above-mentioned technical proposal, when closing fire resistant doorsets, the main frame of door leaf is embedded in the main frame of doorframe and is connected to
It keeps off on frame, plays the role of limiting the main frame rotation of door leaf, and play the fixed main frame of door leaf of Auxiliary support.
The utility model is further arranged to: hinge, the doorframe are connected between the door leaf structure and doorframe structure
The mounting groove for installing hinge arrangement is offered on main frame, and mounting plate, and the hinge are welded in the mounting groove
Structure and mounting plate are embedded in mounting groove.
By using above-mentioned technical proposal, the hinged doorframe structure of hinge arrangement and door leaf structure are simultaneously mounted on mounting groove
It is interior, so that the main frame of doorframe and the main frame of door leaf are connected with the reduction of the gap between the vertical edge of hinge arrangement, then it is difficult to from hinge knot
Structure installation place agitates the main frame of doorframe, to achieve the purpose that the tamper-resistant function for further increasing fire resistant doorsets.
The utility model is further arranged to: the mounting plate includes for the mainboard of fixed hinge structure and by leading
The fixed plate that plate is bent to form, and the fixed plate is affixed to merge and be welded and fixed with the frame slot medial surface of the main frame of doorframe.
By using above-mentioned technical proposal, the frame slot of the main frame of doorframe is fitted in by the fixed plate that mainboard extends outward to form
It on medial surface and is welded and fixed, is conducive to improve the fixed stability of mounting plate, and then reach raising hinge arrangement and install and use
Stability purpose.
The utility model is further arranged to: being adhesively fixed with fireproofing glue strip vertically on the pick-proof rib.
By using above-mentioned technical proposal, when closing fire resistant doorsets, fireproofing glue strip is located in pick-proof rib and door leaf is anti-
It prizes between side, plays the role of the flameproof effect for enhancing fire resistant doorsets.
The utility model is further arranged to: be vertically formed on the pick-proof rib it is useful be embedded the recessed of fireproofing glue strip
Slot has extended to form convex block, and convex block cooperation chimeric with groove on the door leaf stile prying.
By using above-mentioned technical proposal, fireproofing glue strip can be embedded in groove and be adhesively fixed by installation personnel, and
Convex block is embedded to match to merge with groove and fireproofing glue strip is pressed in groove, not only improves the fire protecting performance for improving fire resistant doorsets, and just
It is adhesively fixed vertically fireproofing glue strip in installation personnel.
The utility model is further arranged to: the convex block is towards being adhesively fixed with the fireproof gum on the one side of groove
Item.
By using above-mentioned technical proposal, be equally adhesively fixed fireproofing glue strip on side of the convex block towards groove, to reach
To the purpose for the fire protecting performance for further increasing fire resistant doorsets.
The utility model is further arranged to: the door leaf structure offers decorative groove, and institute towards on before outdoors
It states and is embedded with decoration panel in decorative groove.
By using above-mentioned technical proposal, it is embedded with decoration panel on door leaf structure, is conducive to the entirety for improving fire resistant doorsets
Effect and appearance ornamental value.
In conclusion the utility model has the following beneficial effects:
First, the L-type structure bound edge that doorframe stile prying and pick-proof rib are constituted coats door leaf stile prying, i.e. doorframe stile prying
Gap very little between door leaf stile prying, pry tool etc. are difficult in the gap for protruding into the two；Even if pry tool part is stretched
In the gap for entering the two, pry tool is also directly to be connected on pick-proof rib, is not in contact with door latch structure, more because of gap
Width and depth very little, pry tool are difficult to directly agitate door leaf structure outward, to reach protection door latch structure and door leaf face
The purpose of plate, and then realize the tamper-resistant function of fire resistant doorsets；
Second, on the doorframe auxiliary stile prying of doorframe structure upper end and the L-type wrapping and door leaf structure that assist rib to constitute
The door leaf auxiliary stile prying at end matches the prying-resistant structure to form fire resistant doorsets upper end；The step structure and door of doorframe structure lower end
The lower end of fan structure matches the prying-resistant structure to form fire resistant doorsets lower end, that is, reaches the pick-proof performance for further increasing fire resistant doorsets
Purpose.
Detailed description of the invention
Fig. 1 is a kind of general structure schematic diagram of the prying-resistant structure of fire resistant doorsets；
Fig. 2 is the general structure schematic diagram of doorframe structure；
Fig. 3 is the general structure schematic diagram of door leaf structure；
Fig. 4 is primarily used for showing the structural schematic diagram of mounting groove and mounting plate.
Appended drawing reference: 1, doorframe structure；11, the main frame of doorframe；111, frame is kept off；12, doorframe stile prying；13, pick-proof rib；
131, groove；14, doorframe assists stile prying；15, rib is assisted；2, door leaf structure；21, the main frame of door leaf；22, door leaf stile prying；
221, convex block；23, door leaf assists stile prying；3, door skin；31, decorative groove；4, door latch structure；5, hinge arrangement；6, it installs
Slot；7, mounting plate；71, mainboard；72, fixed plate；8, fireproofing glue strip；9, decoration panel.
Specific embodiment
The utility model is described in further detail below in conjunction with attached drawing.
In conjunction with shown in Fig. 1 and Fig. 3, a kind of prying-resistant structure of fire resistant doorsets, include doorframe structure 1 and with doorframe structure 1
The door leaf structure 2 being used cooperatively；When fire resistant doorsets are closed, door leaf structure 2 is embedded in doorframe structure 1 and shape therebetween
At prying-resistant structure.As shown in connection with fig. 2, doorframe structure 1 includes the main frame 11 of doorframe for being set as square framework structure, and doorframe master
Frame 11 is close to fire resistant doorsets side outdoors integrally formed in the doorframe stile prying 12 and pick-proof rib 13 being vertically arranged；Door leaf knot
Structure 2 includes the main frame 21 of door leaf being arranged in square framework, and door skin 3 is welded and fixed in the front and rear sides of the main frame 21 of door leaf,
To constitute the door leafs of fire resistant doorsets, and the main frame 21 of door leaf close to fire resistant doorsets side outdoors integrally formed in the door being vertically arranged
Fan stile prying 22.When door leaf structure 2 matches to form prying-resistant structure with doorframe structure 1, door leaf stile prying 22 is bonded and abuts
In on doorframe stile prying 12, it is formed with small gap between the side of door leaf stile prying 22 and the side of doorframe stile prying 12,
And the lateral surface of doorframe stile prying 12 and the lateral surface of door leaf stile prying 22 constitute planar structure.The door latch structure 4 of fire resistant doorsets is hidden
Hiding is set in the main frame 11 of doorframe and the main frame 21 of door leaf, and the pry tools such as crowbar will not contact with door latch structure 4 and be difficult to protrude into
In gap, also it is not enough to provide in gap to agitate space required for door leaf, to reach the pick-proof performance for improving fire resistant doorsets
Purpose.
In conjunction with shown in Fig. 2 and Fig. 3, doorframe stile prying 12 and pick-proof rib 13 are by the main frame 11 of doorframe close to side outdoors
The L-type step structure bound edge that vertical side extends to form, and door leaf stile prying 22 is by the main frame 21 of door leaf close to side outdoors
Vertical side be directed away from the vertical frame that the direction of the main frame 21 of door leaf extends to form, i.e., L-type step structure bound edge coats
Above-mentioned vertical frame, to constitute the prying-resistant structure at fire resistant doorsets door latch structure 4.
The prying-resistant structure of fire resistant doorsets does not comprise only prying-resistant structure (i.e. doorframe and door leaf side at door latch structure 4
Prying-resistant structure between frame), it further include having prying-resistant structure between doorframe and door leaf top border and being located at doorframe
Prying-resistant structure between door leaf Bottom Border；The side gap formed when mutually chimeric with door leaf from doorframe, which is started with, improves fire prevention
The whole pick-proof performance of door.
Prying-resistant structure between doorframe and door leaf top border: the upper end horizontal sides of the main frame 11 of doorframe are close to side outdoors
It is formed with doorframe auxiliary stile prying 14 and auxiliary rib 15 towards doorframe internal stretch, and doorframe auxiliary stile prying 14 and auxiliary are kept off
Side 15, which is integrally formed, constitutes L-type step structure bound edge；The upper end horizontal sides of the main frame 21 of door leaf are directed away from the main frame 21 of door leaf
Direction has extended to form door leaf auxiliary stile prying 23.When the main frame 21 of door leaf is embedded in the main frame 11 of doorframe, door leaf assists pick-proof
Side 23 is bonded abutting, and the lateral surface of the lateral surface of doorframe auxiliary stile prying 14 and door leaf auxiliary stile prying 23 with auxiliary rib 15
Constitute planar structure.
Prying-resistant structure between doorframe and door leaf Bottom Border: be formed in the lower end horizontal sides of the main frame 11 of doorframe for
The lower end horizontal sides of the main frame 21 of door leaf abut against the step structure of cooperation；When the main frame 21 of door leaf is embedded in the main frame 11 of doorframe
When, the lower end bottom edge of the main frame 21 of door leaf is bonded on the medial surface for the step structure for being connected to the main frame 11 of doorframe, and the main frame of door leaf
Planar structure is constituted before the lateral surface of 21 lower ends bottom edge and the lateral surface on the main 21 lower end bottom edge of frame of door leaf.
Hinge arrangement 5(i.e. hinge is connected between the side frame being hinged between door leaf and doorframe), lead to door leaf and door
Biggish gap is formed between frame at hinge arrangement 5.As shown in connection with fig. 4, for installing the perpendicular of hinge on the main frame 11 of doorframe
The mounting groove 6 of square structure is offered on front frame, and is welded with mounting plate 7 in mounting groove 6, and hinge is embedded at peace
Due on mounting plate 7 in tankage 6 and by bolt lock.In order to reach to improve fixed stabilization is installed between mounting plate 7 and doorframe
Property purpose, mounting plate 7 includes mainboard 71 for fixing hinge and extended to form by the upper and lower ends bending of mainboard 71
Fixed plate 72, the setting parallel with the side of the main frame 11 of doorframe of mainboard 71, and in the frame slot of fixed plate 72 and the main frame 11 of doorframe
Side is affixed merging and is welded and fixed.
Fluted 131 are opened up on pick-proof rib 13 along the vertical direction, and is adhesively fixed with fireproofing glue strip vertically in groove 131
8；Door leaf stile prying 22 has extended to form convex block 221, one side of the convex block 221 towards groove 131 towards the side in door vertically
On be equally adhesively fixed with fireproofing glue strip 8；When fire resistant doorsets are closed, the cooperation chimeric with groove 131 of convex block 221, and two fireproof gums
Item 8 fits abutting, i.e., the fire protecting performance of fire resistant doorsets is improved under the premise of not destroying the prying-resistant structure of fire resistant doorsets.
The main frame 11 of doorframe side of side in door is formed with the gear frame of square structure, when the main frame 21 of door leaf is embedded at door
When in the main frame 11 of frame, the main frame 21 of door leaf is abutted against with gear frame, plays the effect of limit and support fixation.3 direction of door skin
The decorative groove 31 of square structure is offered on before outdoors, and is embedded with decoration panel 9 in decorative groove 31 and is adhesively fixed.
The present embodiment is further elaborated below with reference to specific movement:
When user closes door leaf, the main frame 21 of door leaf is embedded in the main frame 11 of doorframe, and is formed between doorframe and door leaf
There is prying-resistant structure.Door leaf stile prying 22 is bonded and is connected on pick-proof rib 13, and door leaf auxiliary stile prying 23 is bonded and is connected to
It assists on rib 15, meanwhile, the lower horizontal of door leaf is at the step structure when being connected to doorframe lower horizontal；And doorframe is anti-
Prize the lateral surface on side 12, the lateral surface of door leaf stile prying 22, the lateral surface of doorframe auxiliary stile prying 14, door leaf auxiliary stile prying 23
Lateral surface and the horizontal sides of door leaf bottom end collectively form planar structure, i.e., be made of doorframe stile prying 12 and pick-proof rib 13
L-type wrapping half coat door leaf stile prying 22, coated by doorframe auxiliary stile prying 14 and the L-type wrapping for assisting rib 15 to constitute half
Door leaf assists stile prying 23, and the step structure on doorframe lower horizontal side and the lower horizontal of door leaf in a disguised form contact, from
And realize the prying-resistant structure of fire resistant doorsets.
Present embodiment is only the explanation to the utility model, is not limitations of the present invention, this
Field technical staff can according to need the modification that not creative contribution is made to the present embodiment after reading this specification,
But as long as all by the protection of Patent Law in the scope of the claims of the utility model.
Claims (10)
1. a kind of prying-resistant structure of fire resistant doorsets, it is characterised in that: include doorframe structure (1) and cooperate with doorframe structure (1)
The door leaf structure (2) used, the doorframe structure (1) include the main frame of doorframe (11) for installing door latch structure (4), and institute
The vertical side for stating the main frame of doorframe (11) is formed with doorframe stile prying (12) and pick-proof rib (13) towards doorframe internal stretch；Institute
It states doorframe stile prying (12) and pick-proof rib (13) is vertically arranged, and the doorframe stile prying (12) and pick-proof rib (13) one
The body formed outside in the main frame of doorframe (11) simultaneously forms step structure；
The door leaf structure (2) includes the main frame of door leaf (21) for installing door latch structure (4) and is used for and pick-proof rib
(13) the door leaf stile prying (22) being used in combination, the door leaf stile prying (22) by the main frame of door leaf (21) vertical side direction
It is extended to form far from the direction of door leaf, and the door leaf stile prying (22) is shaped in the outside of the main frame of door leaf (21) and vertical
Setting；
The door leaf stile prying (22) abuts against with pick-proof rib (13), and the lateral surface and door leaf of the doorframe stile prying (12)
The lateral surface of stile prying (22) constitutes planar structure, and door latch structure (4) is embedded at the main frame of the doorframe (11) and the main frame of door leaf
(21) in.
2. a kind of prying-resistant structure of fire resistant doorsets according to claim 1, it is characterised in that: the main frame of doorframe (11) it is upper
End horizontal sides are formed with doorframe auxiliary stile prying (14) and auxiliary rib (15) towards doorframe internal stretch, and the doorframe assists
Stile prying (14) and auxiliary rib (15) are shaped in the outside of the main frame of doorframe (11) and form step structure；The door leaf
The direction that the upper end horizontal sides of main frame (21) are directed away from the main frame of door leaf (21) has extended to form door leaf auxiliary stile prying (23)；Institute
It states door leaf auxiliary stile prying (23) to abut against with auxiliary rib (15), and the lateral surface and door of doorframe auxiliary stile prying (14)
The lateral surface of fan auxiliary stile prying (23) constitutes planar structure.
3. a kind of prying-resistant structure of fire resistant doorsets according to claim 2, it is characterised in that: under the main frame of doorframe (11)
The step structure for abutting against cooperation with the lower end horizontal sides of the main frame of door leaf (21) is formed in the horizontal sides of end.
4. a kind of prying-resistant structure of fire resistant doorsets according to claim 1 to 3, it is characterised in that: the doorframe master
Side of the frame (11) in door is formed with gear frame (111), and the gear frame (111) contacts with the main frame of door leaf (21).
5. a kind of prying-resistant structure of fire resistant doorsets according to claim 1, it is characterised in that: the door leaf structure (2) and door
It is connected between mount structure (1) hinge arrangement (5), the mounting groove for installing hinge is offered on the main frame of doorframe (11)
(6), it is welded with mounting plate (7) in the mounting groove (6), and the hinge arrangement (5) and mounting plate (7) are embedded at installation
In slot (6).
6. a kind of prying-resistant structure of fire resistant doorsets according to claim 5, it is characterised in that: the mounting plate (7) includes
Mainboard (71) for fixed hinge structure (5) and the fixed plate (72) that is bent to form by mainboard (71), and the fixed plate
(72) it is affixed to merge with the frame slot medial surface of the main frame of doorframe (11) and be welded and fixed.
7. a kind of prying-resistant structure of fire resistant doorsets according to claim 1, it is characterised in that: erected on the pick-proof rib (13)
Directly it is adhesively fixed with fireproofing glue strip (8).
8. a kind of prying-resistant structure of fire resistant doorsets according to claim 7, it is characterised in that: erected on the pick-proof rib (13)
Straight at it is useful be embedded the grooves (131) of fireproofing glue strip (8), extended to form convex block on the door leaf stile prying (22)
(221), and the convex block (221) it is chimeric with groove (131) cooperation.
9. a kind of prying-resistant structure of fire resistant doorsets according to claim 8, it is characterised in that: the convex block (221) is towards recessed
The fireproofing glue strip (8) are adhesively fixed on the one side of slot (131).
10. a kind of prying-resistant structure of fire resistant doorsets according to claim 1, it is characterised in that: door leaf structure (2) direction
It is offered on before outdoors decorative groove (31), and is embedded with decoration panel (9) in the decorative groove (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821171689.4U CN209195235U (en) | 2018-07-21 | 2018-07-21 | A kind of prying-resistant structure of fire resistant doorsets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821171689.4U CN209195235U (en) | 2018-07-21 | 2018-07-21 | A kind of prying-resistant structure of fire resistant doorsets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209195235U true CN209195235U (en) | 2019-08-02 |
Family
ID=67403336
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821171689.4U Active CN209195235U (en) | 2018-07-21 | 2018-07-21 | A kind of prying-resistant structure of fire resistant doorsets |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209195235U (en) |
-
2018
- 2018-07-21 CN CN201821171689.4U patent/CN209195235U/en active Active
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