CN108425598A - A kind of hand-clip-proof safety door - Google Patents
A kind of hand-clip-proof safety door Download PDFInfo
- Publication number
- CN108425598A CN108425598A CN201810290075.6A CN201810290075A CN108425598A CN 108425598 A CN108425598 A CN 108425598A CN 201810290075 A CN201810290075 A CN 201810290075A CN 108425598 A CN108425598 A CN 108425598A
- Authority
- CN
- China
- Prior art keywords
- door
- plate
- fixed
- block
- rack
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/32—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing
- E06B3/34—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing with only one kind of movement
- E06B3/36—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing with only one kind of movement with a single vertical axis of rotation at one side of the opening, or swinging through the opening
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/70—Door leaves
- E06B3/88—Edge-protecting devices for door leaves
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/28—Other arrangements on doors or windows, e.g. door-plates, windows adapted to carry plants, hooks for window cleaners
- E06B7/36—Finger guards or other measures preventing harmful access between the door and the door frame
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Wing Frames And Configurations (AREA)
Abstract
The invention discloses a kind of hand-clip-proof safety doors, its key points of the technical solution are that：Including doorframe, the doorframe is hinged with door-plate by hinge, holding tank is offered inside the door-plate, vertically sliding is connected with the first rack in the holding tank of the door-plate, it is fixed with inserted link on first rack, the inserted link passes through door-plate and vertically slides, the circular hole being inserted into for inserted link is offered on the doorframe, it is rotatably connected to first gear in the holding tank of the door-plate, it is intermeshed between the first gear and the first rack, vertically sliding is connected with the second rack in the holding tank of the door-plate, it is intermeshed between second rack and first gear, it is rotatably connected to second gear in the holding tank of the door-plate, it is fixed with bull stick on the center of circle of the second gear, the outer cover of the bull stick is equipped with torsional spring, safety door has the function of finger.
Description
Technical field
The present invention relates to a kind of safety door, more particularly to a kind of hand-clip-proof safety door.
Background technology
The door used in existing building is utilized hinge and door and doorframe links together, hinge connection door-plate with
Doorframe edge substantially protrudes corner angle and spill corner angle and cooperates, when enabling, between the door side and doorframe at hinge
The angle of formation just becomes larger, and at closing time, the angle at hinge is from large to small.Many people do not notice that at closing time, finger is often pressed from both sides,
Light then redness occur, heavy then skin opens seam broken.
Occur in the accident of house, is clipped by door the occurrence probability of wound, up to 35%.It can be seen that being mounted with finger safety
Behind the door, the safety of house can then greatly improve.Such hand-clip-proof safety door can also be mounted on the public places such as office simultaneously
In, reduce the occurrence probability for being clipped by door wound.
Invention content
The object of the present invention is to provide a kind of hand-clip-proof safety doors, its advantage is that：Do not pay attention to hand being placed on a gap for people
The case where, at closing time, it can prevent the gap from closing suddenly, hand is protected not to be pinched, and is easy to use, securely and reliably.
The present invention above-mentioned technical purpose technical scheme is that：
A kind of hand-clip-proof safety door, including doorframe, the doorframe are hinged with door-plate by hinge, and the hinge passes through locking
Bolt is fixed on door-plate and doorframe, offers holding tank inside the door-plate, in the holding tank of the door-plate vertically
Sliding is connected with the first rack, and inserted link is fixed on first rack, and the inserted link passes through door-plate and vertically slides,
The circular hole being inserted into for inserted link is offered on the doorframe, and dovetails, the holding tank of the door-plate are fixed on first rack
Side wall offer with the matched dovetail groove of dovetails, be rotatably connected to first gear in the holding tank of the door-plate, described
It being intermeshed between one gear and the first rack, vertically sliding is connected with the second rack in the holding tank of the door-plate,
Be fixed with T-shaped block on second rack, the receiving groove sidewall of the door-plate offer with the matched T-slot of T-shaped block, it is described
It is intermeshed between second rack and first gear, is rotatably connected to second gear in the holding tank of the door-plate, described second
Be fixed with bull stick on the center of circle of gear, the bull stick passes through door-plate and is fixed with the first fixed block in end, the bull stick it is outer
Portion is arranged with torsional spring, and one end of the torsional spring is fixed on door-plate, and the other end of the torsional spring is fixed on the first fixed block, institute
It states door-plate and offers the access hole for leading to holding tank in the position of holding tank, cover board, institute are hinged at the access hole of the door-plate
It states and is fixed with the second fixed block on cover board, third fixed block is fixed on the door-plate, cunning is offered in the third fixed block
Slot, in the sliding slot sliding be connected with inserted block, spring is connected between the inserted block and sliding slot slot bottom, on second fixed block
The slot being inserted into for inserted block is offered, pull rod is fixed on the inserted block, locking nut is threaded on the pull rod, it is described
The waist type groove passed through for pull rod is further opened on third fixed block.
By using above-mentioned technical proposal, under the action of torsional spring, the inserted link on the first rack will protrude door-plate, it will
Stop the closure of door-plate, then user also would not be by clamp hand；When it is required to close the door, it is only necessary to which first rotated on bull stick is consolidated
To determine block, second gear can be driven to rotate, second gear will drive the second rack in holding tank vertically into line slip,
Second rack will drive first gear rotation, first gear that the first rack is driven vertically to slide, it will be able to which inserted link contracts
It enters intralamellar part, has the characteristics that stable structure, easy to operate.
Preferably, first fixed block offers threaded hole in one end far from bull stick, and the threaded hole internal thread connects
It is connected to screw rod, the screw rod is fixed with a hand in one end far from the first fixed block.
By using above-mentioned technical proposal, bar rotation is moved with regard to energy band by rotating door hand, facilitates operation.
Preferably, the door-plate has protective cover in the external stability of torsional spring.
By using above-mentioned technical proposal, the protective cover outside torsional spring can protect the safety of torsional spring, while improve safety
Energy.
Preferably, it is provided with rotation ear on the locking nut.
By using above-mentioned technical proposal, the rotation ear on locking nut can the person's of being conveniently operated rotation lock nut.
Preferably, the first cushion is provided between the locking nut and third fixed block.
By using above-mentioned technical proposal, the first cushion between locking nut and third fixed block can prevent locking screw
Mother causes to wear when contradicting third fixed block to third fixed block.
Preferably, the sideline of the circular hole is rounding.
By using above-mentioned technical proposal, rounding is made in the sideline of circular hole can facilitate the insertion of inserted link.
Preferably, the outer wall of the inserted link is provided with the second cushion.
By using above-mentioned technical proposal, the second cushion of inserted link outer wall can prevent inserted link when stopping that door is closed on the door
Frame generates rigid shock, prevents abrasion doorframe.
Preferably, the cover board at the access hole is transparent material.
By using above-mentioned technical proposal, access hole can be facilitated the operation of using transparent material and be observed inside holding tank
Situation.
Preferably, the pull rod is fixed with handle in one end far from inserted block.
By using above-mentioned technical proposal, the handle of tie rod end can the person's of being conveniently operated pulling pull rod.
In conclusion the invention has the advantages that：
The case where not paying attention to hand being placed on gap for people, at closing time, can prevent the gap from closing, protect hand not suddenly
It is pinched, and easy to use, securely and reliably.
Description of the drawings
Fig. 1 is one of structural schematic diagram of hand-clip-proof safety door；
Fig. 2 is enlarged drawing at C in Fig. 1；
Fig. 3 is one of structure sectional view of hand-clip-proof safety door；
Fig. 4 is enlarged drawing at D in Fig. 3；
Fig. 5 is enlarged drawing at E in Fig. 3；
Fig. 6 is the two of the structure sectional view of hand-clip-proof safety door；
Fig. 7 is enlarged drawing at F in Fig. 6；
Fig. 8 is the three of the structure sectional view of hand-clip-proof safety door；
Fig. 9 is enlarged drawing at G in Fig. 8.
Reference numeral：1, doorframe；2, hinge；3, door-plate；4, clamping screw；5, holding tank；6, the first rack；7, inserted link；
8, circular hole；9, dovetails；10, dovetail groove；11, first gear；12, the second rack；13, T-shaped block；14, T-slot；15, the second tooth
Wheel；16, bull stick；17, the first fixed block；18, torsional spring；19, access hole；20, cover board；21, the second fixed block；22, third is fixed
Block；23, sliding slot；24, inserted block；25, spring；26, slot；27, pull rod；28, locking nut；29, threaded hole；30, screw rod；31、
Door hand；32, protective cover；33, ear is rotated；34, the first cushion；35, the second cushion；36, handle；37, waist type groove.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, is clearly and completely retouched to the technical solution in the present invention
It states, it is clear that described invention is only a part of the embodiment of the present invention, instead of all the embodiments.Based in the present invention
Embodiment, every other embodiment obtained by those of ordinary skill in the art without making creative efforts,
It shall fall within the protection scope of the present invention.
As shown in Figures 1 to 9, a kind of hand-clip-proof safety door, including doorframe 1, wherein hinged by hinge 2 on doorframe 1
There are door-plate 3, door-plate 3 that can be rotated along the shaft of hinge 2, wherein the two and half of hinge 2 page are separately fixed at by clamping screw 4
On door-plate 3 and doorframe 1；In order to realize finger function, that is, ensure that door-plate 3 will not close rashly, offer appearance inside door-plate 3
Receive slot 5, and vertically sliding is connected with the first rack 6 in the holding tank of door-plate 35, while fixed on the first rack 6
There is inserted link 7, inserted link 7 is passed through into door-plate 3 and inserted link 7 is vertically slid, while being offered for inserted link 7 on doorframe 1
The circular hole 8 of insertion, round bar can stretch out the closure that door-plate 3 stops door-plate 3；In order to enable the stabilization of the first rack 6 sliding, the
Be fixed with dovetails 9 on one rack 6, and 5 side wall of the holding tank of door-plate 3 offer with 9 matched dovetail groove 10 of dovetails,
First gear 11 is rotatably connected in the holding tank 5 of door-plate 3 so that between first gear 11 and the first rack 6 mutually simultaneously
Engagement, the rotation of first gear 11 move up and down the first rack 6 of driving；It is vertically slided in the holding tank 5 of door-plate 3 simultaneously
Shifting is connected with the second rack 12, in order to enable more stablizing for the second rack 12 sliding, T-shaped block is fixed on the second rack 12
13, and offered and 13 matched T-slot 14 of T-shaped block in 5 side wall of the holding tank of door-plate 3 so that the second rack 12 and first
It is intermeshed between gear 11,12 uplink and downlink of the second rack will drive first gear 11 to rotate；Simultaneously in the holding tank 5 of door-plate 3
It is inside rotatably connected to second gear 15, second gear 15 rotates in order to facilitate the operation, is fixed on the center of circle of second gear 15
Bull stick 16 is passed through door-plate 3 and is fixed with the first fixed block 17 in end, while is equipped with and turning round in the outer cover of bull stick 16 by bull stick 16
One end of torsional spring 18 is fixed on door-plate 3 by spring 18, the other end of torsional spring 18 is fixed on the first fixed block 17, torsional spring 18
Torsion can be provided so that inserted link 7 can protrude door-plate 3 always；In order to facilitate maintenance, offered in the position of 3 holding tank 5 of door-plate
Lead to the access hole 19 of holding tank 5, while being hinged with cover board 20 at the access hole of door-plate 3 19, in order to fix cover board 20, is covering
It is fixed with the second fixed block 21 on plate 20, while being fixed with third fixed block 22 on door-plate 3, will be opened up in third fixed block 22
There is sliding slot 23, while sliding is connected with inserted block 24 in sliding slot 23, will be connected with spring 25 between 23 slot bottom of inserted block 24 and sliding slot,
And the slot 26 being inserted into for inserted block 24 is offered on the second fixed block 21, inserted block 24 is sliding in sliding slot 23 in order to facilitate the pulling of
It moves, pull rod 27 is fixed on inserted block 24, and be threaded with locking nut 28 on pull rod 27, the locking nut on pull rod 27
28 can lock pull rod 27, while the waist type groove 37 passed through for pull rod 27 is further opened on third fixed block 22；
Under the action of torsional spring 18, the inserted link 7 on the first rack 6 will protrude door-plate 3, it will stop the closure of door-plate 3, then user
It would not be by clamp hand；When it is required to close the door, it is only necessary to rotate the first fixed block 17 on bull stick 16, second gear can be driven
15 rotations, second gear 15 will drive the second rack 12 in holding tank 5 vertically into line slip, and the second rack 12 is by band
Dynamic first gear 11 rotates, and first gear 11 drives the first rack 6 vertically to slide, it will be able to which inserted link 7 is retracted door-plate 3
Inside has the characteristics that stable structure, easy to operate.
As shown in figure 9, threaded hole 29 is offered in one end far from bull stick 16 in the first fixed block 17, wherein in threaded hole
29 internal threads are connected with screw rod 30, and screw rod 30 is fixed with a hand 31 in one end far from the first fixed block 17, pass through rotation
Door hand 31 is rotated with regard to energy band turn bar 16, facilitates operation；There is protective cover 32 in the external stability of 3 torsional spring 18 of door-plate simultaneously, turns round
Protective cover 32 outside spring 18 can protect the safety of torsional spring 18, while improve security performance.
If Fig. 7 thinks, rotation ear 33 is provided on locking nut 28, the rotation ear 33 on locking nut 28 can facilitate behaviour
Author's rotation lock nut 28；It is provided with the first cushion 34 between locking nut 28 and third fixed block 22 simultaneously, locks
The first cushion 34 between nut 28 and third fixed block 22 can prevent locking nut 28 when contradicting third fixed block 22 pair
Third fixed block 22 causes to wear；Rounding is made into the sideline of circular hole 8 simultaneously, rounding is made in the sideline of circular hole 8 can facilitate inserted link 7
Insertion；It is fixed with handle 36 in the one end of pull rod 27 far from inserted block 24 simultaneously, the handle 36 of 27 end of pull rod can be conveniently operated
Person pulls pull rod 27.
As shown in figure 4, the outer wall in inserted link 7 is provided with the second cushion 35, the second cushion 35 of 7 outer wall of inserted link can be prevented
Only inserted link 7 generates rigid shock when stopping that door is closed to doorframe 1, prevents abrasion doorframe 1.
As shown in Figure 1, the cover board 20 at access hole 19 uses transparent material, access hole 19 that can facilitate behaviour using transparent material
Make to observe the situation inside holding tank 5.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
Understanding without departing from the principles and spirit of the present invention can carry out these embodiments a variety of variations, modification, replace
And modification, the scope of the present invention is defined by the appended.
Claims (9)
1. a kind of hand-clip-proof safety door, including doorframe (1), it is characterised in that：The doorframe (1) is hinged with door by hinge (2)
Plate (3), the hinge (2) are fixed on by clamping screw (4) on door-plate (3) and doorframe (1), are opened up inside the door-plate (3)
There is holding tank (5), is vertically slid in the holding tank (5) of the door-plate (3) and be connected with the first rack (6), described first
Inserted link (7) is fixed on rack (6), the inserted link (7) passes through door-plate (3) and vertically slides, opened on the doorframe (1)
Equipped with the circular hole (8) being inserted into for inserted link (7), dovetails (9), the receiving of the door-plate (3) are fixed on first rack (6)
Slot (5) side wall offers and dovetails (9) matched dovetail groove (10), the interior rotation connection of holding tank (5) of the door-plate (3)
There is first gear (11), is intermeshed between the first gear (11) and the first rack (6), the holding tank of the door-plate (3)
(5) vertically sliding is connected with the second rack (12) in, and T-shaped block (13) is fixed on second rack (12), described
Holding tank (5) side wall of door-plate (3) offers and T-shaped block (13) matched T-slot (14), second rack (12) and the
One gear is intermeshed between (11), is rotatably connected to second gear (15) in the holding tank (5) of the door-plate (3), and described the
Bull stick (16) is fixed on the center of circle of two gears (15), the bull stick (16), which passes through door-plate (3) and is fixed with first in end, consolidates
Determine block (17), the outer cover of the bull stick (16) is equipped with torsional spring (18), and one end of the torsional spring (18) is fixed on door-plate (3),
The other end of the torsional spring (18) is fixed on the first fixed block (17), and the door-plate (3) offers in the position of holding tank (5)
Lead to the access hole (19) of holding tank (5), cover board (20), the cover board are hinged at the access hole (19) of the door-plate (3)
(20) it is fixed with the second fixed block (21) on, third fixed block (22), the third fixed block are fixed on the door-plate (3)
(22) sliding slot (23) is offered in, is slid in the sliding slot (23) and is connected with inserted block (24), the inserted block (24) and sliding slot (23)
It is connected with spring (25) between slot bottom, the slot (26) being inserted into for inserted block (24), institute are offered on second fixed block (21)
It states and is fixed with pull rod (27) on inserted block (24), be threaded with locking nut (28) on the pull rod (27), the third is fixed
The waist type groove (37) passed through for pull rod (27) is further opened on block (22).
2. a kind of hand-clip-proof safety door according to claim 1, it is characterised in that：First fixed block (17) is separate
One end of bull stick (16) offers threaded hole (29), and threaded hole (29) internal thread is connected with screw rod (30), the screw rod
(30) it is fixed with a hand (31) in one end far from the first fixed block (17).
3. a kind of hand-clip-proof safety door according to claim 1, it is characterised in that：The door-plate (3) is in torsional spring (18)
External stability has protective cover (32).
4. a kind of hand-clip-proof safety door according to claim 1, it is characterised in that：It is provided on the locking nut (28)
Rotate ear (33).
5. a kind of hand-clip-proof safety door according to claim 1, it is characterised in that：The locking nut (28) and third are solid
Determine to be provided with the first cushion (34) between block (22).
6. to remove a kind of hand-clip-proof safety door described in 1 according to right, it is characterised in that：The sideline of the circular hole (8) is rounding.
7. a kind of hand-clip-proof safety door according to claim 1, it is characterised in that：The outer wall of the inserted link (7) is provided with
Second cushion (35).
8. a kind of hand-clip-proof safety door according to claim 1, it is characterised in that：Cover board at the access hole (19)
(20) it is transparent material.
9. a kind of hand-clip-proof safety door according to claim 1, it is characterised in that：The pull rod (27) is far from inserted block
(24) one end is fixed with handle (36).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810290075.6A CN108425598A (en) | 2018-04-03 | 2018-04-03 | A kind of hand-clip-proof safety door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810290075.6A CN108425598A (en) | 2018-04-03 | 2018-04-03 | A kind of hand-clip-proof safety door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108425598A true CN108425598A (en) | 2018-08-21 |
Family
ID=63160275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810290075.6A Pending CN108425598A (en) | 2018-04-03 | 2018-04-03 | A kind of hand-clip-proof safety door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108425598A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108783953A (en) * | 2018-09-13 | 2018-11-13 | 永康市华格工业产品设计有限公司 | The desk of finger |
| CN110230463A (en) * | 2019-04-22 | 2019-09-13 | 周芮竹 | A kind of door body assembly |
| CN110409982A (en) * | 2019-08-05 | 2019-11-05 | 浙江晶鼎木业有限公司 | Timber |
| CN111894401A (en) * | 2020-08-17 | 2020-11-06 | 钱芳芳 | Classroom safety door capable of preventing hands from being pinched |
| CN113585927A (en) * | 2021-08-31 | 2021-11-02 | 南京富荣装饰门窗有限公司 | Safe timber |
| CN113969707A (en) * | 2021-11-26 | 2022-01-25 | 山东泰开成套电器有限公司 | Novel door plate locking device and locking method |
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| CN202380860U (en) * | 2012-01-09 | 2012-08-15 | 戴震班 | Safety door |
| CN202544704U (en) * | 2011-12-29 | 2012-11-21 | 黄河源 | Nipping hand-proof door |
| CN102900344A (en) * | 2012-10-23 | 2013-01-30 | 宁波永发集团有限公司 | Hand-protected cabinet door |
| CN205100815U (en) * | 2015-11-18 | 2016-03-23 | 天津市职业大学 | Anti -hand -clamping door panels |
| CN205153875U (en) * | 2015-11-23 | 2016-04-13 | 浙江机电职业技术学院 | Novel infant prevents pressing from both sides emergency exit |
| CN208777873U (en) * | 2018-04-03 | 2019-04-23 | 孙利嫚 | A kind of hand-clip-proof safety door |
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2018
- 2018-04-03 CN CN201810290075.6A patent/CN108425598A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202544704U (en) * | 2011-12-29 | 2012-11-21 | 黄河源 | Nipping hand-proof door |
| CN202380860U (en) * | 2012-01-09 | 2012-08-15 | 戴震班 | Safety door |
| CN102900344A (en) * | 2012-10-23 | 2013-01-30 | 宁波永发集团有限公司 | Hand-protected cabinet door |
| CN205100815U (en) * | 2015-11-18 | 2016-03-23 | 天津市职业大学 | Anti -hand -clamping door panels |
| CN205153875U (en) * | 2015-11-23 | 2016-04-13 | 浙江机电职业技术学院 | Novel infant prevents pressing from both sides emergency exit |
| CN208777873U (en) * | 2018-04-03 | 2019-04-23 | 孙利嫚 | A kind of hand-clip-proof safety door |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108783953A (en) * | 2018-09-13 | 2018-11-13 | 永康市华格工业产品设计有限公司 | The desk of finger |
| CN110230463A (en) * | 2019-04-22 | 2019-09-13 | 周芮竹 | A kind of door body assembly |
| CN110230463B (en) * | 2019-04-22 | 2020-07-10 | 周芮竹 | Door body assembly |
| CN110409982A (en) * | 2019-08-05 | 2019-11-05 | 浙江晶鼎木业有限公司 | Timber |
| CN111894401A (en) * | 2020-08-17 | 2020-11-06 | 钱芳芳 | Classroom safety door capable of preventing hands from being pinched |
| CN113585927A (en) * | 2021-08-31 | 2021-11-02 | 南京富荣装饰门窗有限公司 | Safe timber |
| CN113585927B (en) * | 2021-08-31 | 2022-09-13 | 南京富荣装饰门窗有限公司 | Safe timber |
| CN113969707A (en) * | 2021-11-26 | 2022-01-25 | 山东泰开成套电器有限公司 | Novel door plate locking device and locking method |
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