CN109854128A - A kind of anticollision aluminium alloy door and its environmentally friendly manufacturing process - Google Patents
A kind of anticollision aluminium alloy door and its environmentally friendly manufacturing process Download PDFInfo
- Publication number
- CN109854128A CN109854128A CN201910172664.9A CN201910172664A CN109854128A CN 109854128 A CN109854128 A CN 109854128A CN 201910172664 A CN201910172664 A CN 201910172664A CN 109854128 A CN109854128 A CN 109854128A
- Authority
- CN
- China
- Prior art keywords
- column
- bumper
- slide plate
- absorbing shock
- door
- 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.)
- Granted
Links
Abstract
The present invention relates to a kind of anticollision aluminium alloy doors, including doorframe, door leaf, hinge, door lock and the lockhole being opened on doorframe, doorframe includes the first column, the second stand column and beam, the cavity being located in the second column, the first slide plate being connected in cavity along the sliding of the second column width direction, is provided with along the second column width direction slideway of second column towards the first column side, the baffle and bumper and absorbing shock pad that are fixedly connected with the first slide plate；Bumper and absorbing shock pad includes several cylinder-shaped elastic rings, adjacent cylinder-shaped elastic ring lateral wall connection fastened to each other.With easy to use, it can effectively avoid hitting and causing the effect of doorframe and door lock damage, simultaneously because the generally novel colored metal alloy material of material used in anticollision aluminium alloy door, lustrous surface is beautiful, corrosion resistance is strong, it is colour-fast, do not fall off, it is not required to paint, is easy to maintain, waste aluminum easily recycles, reuse ratio is high, in processing and making process the features such as non-environmental-pollution.
Description
Technical field
The present invention relates to door and window fields, more particularly, to a kind of anticollision aluminium alloy door and its environmentally friendly manufacturing process.
Background technique
Aluminium alloy door generally by doorframe, door leaf, connection doorframe and door leaf hinge, be mounted on the door lock of door leaf free end with
And it is opened in the lockhole being used cooperatively on doorframe with door lock.
Above-mentioned aluminium alloy door during use, often since dynamics is excessive at closing time causes in door lock by user
It is hit after in lock tongue insertion lockhole with doorframe, is easy to that doorframe and door lock is caused to be damaged in use for some time.
Summary of the invention
The object of the present invention is to provide a kind of anticollision aluminium alloy door, with easy to use, can effectively avoid hitting
And the effect for causing doorframe and door lock to damage.
Above-mentioned purpose of the invention has the technical scheme that a kind of anticollision aluminium alloy door, including
Doorframe, door leaf, connection doorframe and door leaf hinge, be mounted on the door lock of door leaf free end and be opened on doorframe and door lock cooperate
The lockhole used, the doorframe include first column hinged with door leaf, are provided with the second column of lockhole and are fixedly connected on
Crossbeam between first column and the second the upper end of the column further includes the cavity being located in the second column, along the second column width side
The first slide plate from cavity to sliding that be connected in, at least one along the second column width direction be provided with the second column towards first
Column side and the slideway being connected to cavity, the baffle for being slidably matched with slideway and being fixedly connected with the first slide plate and setting exist
In cavity and it is located at the first slide plate backwards to the bumper and absorbing shock pad of door leaf side；
The bumper and absorbing shock pad includes several cylinder-shaped elastic rings being arranged in cavity by rectangular array, adjacent cylinder-shaped bullet
Property circle lateral wall connection fastened to each other.
Through the above technical solutions, under normal conditions, baffle is in the same vertical plane with lockhole, when people at closing time, door leaf
It can first be contacted with baffle, so that the first slide plate is pushed to slide in cavity along door leaf closing direction, so that bumper and absorbing shock pad is squeezed,
Bumper and absorbing shock pad absorbs the kinetic energy of a part of door leaf at this time, to occur after reducing in the lock tongue insertion lockhole in door lock with doorframe
The shock dynamics of shock to avoid hitting and doorframe and door lock being caused to damage, and uses easily.
The present invention is further arranged to: being wholely set reinforcing rib, institute along the vertical direction on the inside of the cylindrical shape elastic ring
The axis for stating reinforcing rib and annular resilient collar is parallel to each other.
Through the above technical solutions, limiting cylinder-shaped elastic ring in the deformation of vertical direction, bumper and absorbing shock pad is improved
Absorbing shock performance.
The present invention is further arranged to: the bumper and absorbing shock pad is made of rubber or polyurethane material.
Through the above technical solutions, making bumper and absorbing shock pad that there is good absorbing shock performance.
The present invention is further arranged to: the side of the baffle towards door leaf is fixedly connected with buffering wear-resistant pad.
By upper technical solution, the setting for buffering wear-resistant pad can play certain shock absorbing effect, while can also keep away
Exempt from door leaf to be scratched by baffle.
The present invention is further arranged to: the buffering wear-resistant pad is made of polyurethane material.
Through the above technical solutions, making to buffer wear-resistant pad with good absorbing shock performance and wear-resisting property.
The present invention is further arranged to: the side that the bumper and absorbing shock is acted as a cushion from the first slide plate is fixedly connected with sliding with cavity
Second slide plate of dynamic cooperation, second slide plate are provided with lead screw backwards to the side of bumper and absorbing shock pad, and the lead screw is vertical along second
Column width direction is threadedly coupled through the second column side wall and with the second column.
Through the above technical solutions, work as bumper and absorbing shock pad in use for some time due to material aging, buffering
The deformability of resilient cushion reduces, and causes after people opens door leaf, and baffle can not set back, and people is caused to close the door in next time
When, bumper and absorbing shock pad is difficult to effectively play the role of bumper and absorbing shock, and the setting of lead screw and the second slide plate makes one finding
After aging occurs for bumper and absorbing shock pad, the second slide plate can be made to push bumper and absorbing shock to the first slide plate direction by rotating threaded shaft
Pad, to make one after opening door leaf, baffle can set back under the action of bumper and absorbing shock pad.
The present invention is further arranged to: the lead screw is fixedly connected with away from one end of bumper and absorbing shock pad to be turned convenient for user
Dynamic lead screw screws head.
Through the above technical solutions, the setting for screwing head, which makes one very easily to rotate, screws head.
It is a further object of the present invention to provide a kind of anticollision aluminium alloy door, effects simple with process, easily manufactured
Fruit.
A kind of anticollision aluminium alloy door environmental protection manufacturing process, comprising the following steps:
Step 1: according to design drawing size cut aluminum alloy plate materials, and using bending machine make the first column, the second column and
Crossbeam, the second column should be processed into tubulose open at one end, closed at one end, then be processed on the second column using cutting machine
Slideway and lockhole；
Step 2: door leaf is made according to design drawing size cut aluminum alloy plate materials, and using bending machine, it then will by hinge
Door leaf is hinged on the second column, and then door lock is installed on door leaf；
Step 3: forming the first slide plate, baffle and second according to the aluminum alloy plate materials of design drawing size cut suitable thickness
Slide plate；
Step 4: being molded to form bumper and absorbing shock pad and buffering wear-resistant pad using rubber material or polyurethane material；
Step 5: the first slide plate and the second slide plate to be first fixedly connected on to the opposite sides of bumper and absorbing shock pad, then buffering is subtracted
Shake pad is inserted into the second column by the open end of the second column, and then the both ends of crossbeam are respectively welded in the opening of the second column
Baffle, is then welded on the first slide plate by the upper end at end and the first column；
Step 6: processing the threaded hole with threads of lead screw cooperation on the second column, then lead screw is screwed in threaded hole.
Through the above technical solutions, anticollision aluminium alloy door can be manufactured according to manufacturing step is simple and fast；
It is small using the first column of bending machine manufacture, the second column, crossbeam and door leaf environmental protection, pollution；Cross is connected by the way of welding
Beam and the first column and the second column, simple process, environmental protection.
In conclusion advantageous effects of the invention are as follows:
1, it can effectively avoid hitting and doorframe and door lock being caused to damage, under normal conditions, baffle and lockhole are in same vertical plane
On, when people at closing time, door leaf can first be contacted with baffle, thus push the first slide plate in cavity along door leaf closing direction sliding,
To squeeze bumper and absorbing shock pad, bumper and absorbing shock pad absorbs the kinetic energy of a part of door leaf at this time, so that the lock tongue reduced in door lock is inserted
Enter the shock dynamics that rear and doorframe is hit in lockhole, to avoid hitting and doorframe and door lock being caused to damage.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is other direction overall structure diagram of the invention；
Fig. 3 is to embody the schematic diagram that the structure in the second column is done；
Fig. 4 is enlarged drawing at A in Fig. 3.
In figure, 1, doorframe；11, the first column；12, the second column；121, cavity；122, lockhole；123, slideway；13, horizontal
Beam；2, door leaf；3, hinge；4, door lock；5, the first slide plate；6, baffle；61, wear-resistant pad is buffered；7, bumper and absorbing shock pad；71, cylinder
Shape elastic ring；72, reinforcing rib；8, the second slide plate；9, lead screw；91, head is screwed.
Specific embodiment
Below in conjunction with attached drawing, invention is further described in detail.
It referring to Figures 1 and 2, is a kind of anticollision aluminium alloy door disclosed by the invention, including doorframe 1, door leaf 2, connection door
The hinge 3 of frame 1 and door leaf 2 is mounted on the door lock 4 of 2 free end of door leaf and is opened in the lock being used cooperatively on doorframe 1 with door lock 4
Hole 122, above-mentioned doorframe 1 include opening with door leaf 2 by the first hinged column 11 of hinge 3, towards the side of the first column 11
The second column 12 equipped with lockhole 122 and the crossbeam 13 being fixedly connected between 12 upper end of the first column 11 and the second column.
Referring to Fig. 2 and Fig. 3, anticollision aluminium alloy door further includes the cavity 121 being arranged in the second column 12, vertical along second
The first slide plate 5 that the sliding of 12 width direction of column is connected in cavity 121, at least one is provided with along 12 width direction of the second column
Second column 12 is towards 11 side of the first column and the slideway 123(present embodiment that is connected to cavity 121 is with six
Example), the baffle 6 that is slidably matched with slideway 123 and is fixedly connected with the first slide plate 5, be arranged in cavity 121 and be located at the first cunning
Plate 5 backwards to 2 side of door leaf bumper and absorbing shock pad 7, be fixedly connected on bumper and absorbing shock pad 7 away from 5 side of the first slide plate and and cavity
121 the second slide plates 8 being slidably matched and the lead screw 9 for being arranged in 12 side wall of the second column and being threadedly coupled with the second column 12,
One end that lead screw 9 penetrates the second column 12 is abutted with the second slide plate 8 away from the side of bumper and absorbing shock pad 7, and lead screw 9 is sliding away from second
One end of plate 8 be fixedly connected with facilitate people's rotational lead screw 9 screw first 91.The setting of cavity 121 makes the second column 12 in upper end
The tubular structure of opening, lower end closed.
Referring to Fig. 2 and Fig. 3, bumper and absorbing shock pad 7 is by rubber or polyurethane material system with good absorbing shock performance
At comprising it is several to be arranged in the cylinder-shaped elastic ring 71 in cavity 121 by rectangular array, outside adjacent cylinder-shaped elastic ring 71
Side wall connection fastened to each other, in order to improve the absorbing shock performance of bumper and absorbing shock pad 7, lateral edge is vertical in cylinder-shaped elastic ring 71
Direction has been wholely set reinforcing rib 72, which is located at annular resilient collar medial center and the axis with annular resilient collar
It is parallel to each other.
Under normal conditions, baffle 6 and lockhole 122 are in the same vertical plane, when people at closing time, door leaf 2 can first be connect with baffle 6
Touching, to squeeze bumper and absorbing shock pad 7, is delayed at this time so that the first slide plate 5 be pushed to slide in cavity 121 along 2 closing direction of door leaf
It rushes resilient cushion 7 and absorbs the kinetic energy of a part of door leaf 2, to be sent out after reducing in the lock tongue insertion lockhole 122 in door lock 4 with doorframe 1
The raw shock dynamics hit, to avoid hitting and doorframe 1 and door lock 4 being caused to damage.
Since aging can occur in use for some time for bumper and absorbing shock pad 7, bumper and absorbing shock pad 7 restores the ability drop of deformation
It is low, cause after people opens door leaf 2, baffle 6 can not set back under the action of bumper and absorbing shock pad 7, cause people in next time
When shutdown, bumper and absorbing shock pad 7 is difficult to effectively play the role of bumper and absorbing shock.Therefore when user has found that baffle 6 can not
When setting back under the action of bumper and absorbing shock pad 7, user should make the second slide plate 8 to the first slide plate 5 by rotating threaded shaft 9
Direction pushes bumper and absorbing shock pad 7, to make one after opening door leaf 2, baffle 6 can be in the effect of bumper and absorbing shock pad 7
Under set back.
Referring to Fig. 3, it is fixedly connected in the side of baffle 6 towards door leaf 2 wear-resisting using buffering made of polyurethane material
Pad 61 is scratched to avoid door leaf 2 by baffle 6.
A kind of anticollision aluminium alloy door environmental protection manufacturing process, comprising the following steps:
Step 1: making the first column 11, the second column according to design drawing size cut aluminum alloy plate materials, and using bending machine
12 and crossbeam 13, the second column 12 should be processed into tubulose open at one end, closed at one end, then using cutting machine in the second column
Slideway 123 and lockhole 122 are processed on 12；
Step 2: making door leaf 2 according to design drawing size cut aluminum alloy plate materials, and using bending machine, then pass through hinge 3
Door leaf 2 is hinged on the second column 12, then door lock 4 is installed on door leaf 2；
Step 3: according to the aluminum alloy plate materials of design drawing size cut suitable thickness, the first slide plate 5, baffle 6 and the are formed
Two slide plates 8；
Step 4: being molded to form bumper and absorbing shock pad 7 and buffering wear-resistant pad 61 using rubber material or polyurethane material；
Step 5: the first slide plate 5 and the second slide plate 8 are first fixedly connected on to the opposite sides of bumper and absorbing shock pad 7, it then will buffering
Resilient cushion 7 is inserted into the second column 12 by the open end of the second column 12, and then the both ends of crossbeam 13 are respectively welded in second
Then baffle 6 is welded on the first slide plate 5 by the upper end of the open end of column 12 and the first column 11；
Step 6: processing the threaded hole being threadedly engaged with lead screw 9 on the second column 12, then lead screw 9 is screwed in threaded hole.
Simultaneously because the generally novel colored metal alloy material of material used in anticollision aluminium alloy door, lustrous surface
It is beautiful, corrosion resistance is strong, it is colour-fast, do not fall off, be not required to paint, be easy to maintain, waste aluminum easily recycles, and reuse ratio is high, adds
In work manufacturing process the features such as non-environmental-pollution.
The embodiment of present embodiment is presently preferred embodiments of the present invention, not limits protection of the invention according to this
Range, therefore: the equivalence changes that all structures under this invention, shape, principle are done, should all be covered by protection scope of the present invention it
It is interior.
Claims (8)
1. a kind of anticollision aluminium alloy door, hinge (3), peace including doorframe (1), door leaf (2), connection doorframe (1) with door leaf (2)
Mounted in door leaf (2) free end door lock (4) and be opened in the lockhole (122) being used cooperatively on doorframe (1) with door lock (4), it is described
Doorframe (1) includes first column (11) hinged with door leaf (2), the second column (12) for being provided with lockhole (122) and fixed company
The crossbeam (13) being connected between the first column (11) and the second column (12) upper end, it is characterized in that: further including being located at the second column
(12) cavity (121) in, the first slide plate (5) being connected in cavity (121) along the sliding of the second column (12) width direction, extremely
Few one is provided with the second column (12) towards the first column (11) side and and cavity along the second column (12) width direction
(121) slideway (123) being connected to, the baffle (6) that is slidably matched with slideway (123) and is fixedly connected with the first slide plate (5) and
It is arranged in cavity (121) and is located at the first slide plate (5) backwards to the bumper and absorbing shock pad (7) of door leaf (2) side；
The bumper and absorbing shock pad (7) includes several cylinder-shaped elastic rings (71) being arranged in cavity (121) by rectangular array, phase
Adjacent cylinder-shaped elastic ring (71) lateral wall connection fastened to each other.
2. a kind of anticollision aluminium alloy door according to claim 1, it is characterized in that: on the inside of the cylindrical shape elastic ring (71)
It has been wholely set along the vertical direction reinforcing rib (72), the reinforcing rib (72) and the axis of annular resilient collar are parallel to each other.
3. a kind of anticollision aluminium alloy door according to claim 1 or 2, it is characterized in that: the bumper and absorbing shock pad (7) uses
Rubber or polyurethane material are made.
4. a kind of anticollision aluminium alloy door according to claim 1, it is characterized in that: the baffle (6) is towards door leaf (2)
Side is fixedly connected with buffering wear-resistant pad (61).
5. a kind of anticollision aluminium alloy door according to claim 4, it is characterized in that: the buffering wear-resistant pad (61) is using poly-
Urethane material is made.
6. a kind of anticollision aluminium alloy door according to claim 1, it is characterized in that: the bumper and absorbing shock pad (7) is away from the
The side of one slide plate (5) is fixedly connected with the second slide plate (8) being slidably matched with cavity (121), and second slide plate (8) is backwards
The side of bumper and absorbing shock pad (7) is provided with lead screw (9), and the lead screw (9) is vertical through second along the second column (12) width direction
Column (12) side wall is simultaneously threadedly coupled with the second column (12).
7. a kind of anticollision aluminium alloy door according to claim 6, it is characterized in that: the lead screw (9) deviates from bumper and absorbing shock
One end of pad (7), which is fixedly connected with, screws head (91) convenient for user's rotational lead screw (9).
8. a kind of anticollision aluminium alloy door environmental protection manufacturing process, it is characterized in that: the following steps are included:
Step 1: being stood according to design drawing size cut aluminum alloy plate materials, and using bending machine production the first column (11), second
Column (12) and crossbeam (13), the second column (12) should be processed into tubulose open at one end, closed at one end, then be existed using cutting machine
Slideway (123) and lockhole (122) are processed on second column (12)；
Step 2: according to design drawing size cut aluminum alloy plate materials, and using bending machine production door leaf (2), then pass through hinge
Door leaf (2) is hinged on the second column (12) by chain (3), and then door lock (4) is installed on door leaf (2)；
Step 3: according to the aluminum alloy plate materials of design drawing size cut suitable thickness, formed the first slide plate (5), baffle (6) with
And second slide plate (8)；
Step 4: being molded to form bumper and absorbing shock pad (7) and buffering wear-resistant pad (61) using rubber material or polyurethane material；
Step 5: the first slide plate (5) and the second slide plate (8) to be first fixedly connected on to the opposite sides of bumper and absorbing shock pad (7), then
Bumper and absorbing shock pad (7) is interior by the open end insertion the second column (12) of the second column (12), then by the both ends of crossbeam (13)
The open end in the second column (12) and the upper end of the first column (11) is respectively welded, it is sliding that baffle (6) is then welded to first
On plate (5)；
Step 6: processing the threaded hole being threadedly engaged with lead screw (9) on the second column (12), lead screw (9) are then screwed in into spiral shell
In pit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910172664.9A CN109854128B (en) | 2019-03-07 | 2019-03-07 | Anti-collision aluminum alloy door and environment-friendly manufacturing process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910172664.9A CN109854128B (en) | 2019-03-07 | 2019-03-07 | Anti-collision aluminum alloy door and environment-friendly manufacturing process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109854128A true CN109854128A (en) | 2019-06-07 |
| CN109854128B CN109854128B (en) | 2020-06-16 |
Family
ID=66900190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910172664.9A Active CN109854128B (en) | 2019-03-07 | 2019-03-07 | Anti-collision aluminum alloy door and environment-friendly manufacturing process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109854128B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202023458U (en) * | 2011-03-01 | 2011-11-02 | 上海世吉木业有限公司 | Firm door jamb |
| CN202164961U (en) * | 2011-05-23 | 2012-03-14 | 李肄飞 | Hand clamp prevention safety door |
| CN107269193A (en) * | 2017-07-21 | 2017-10-20 | 李耀强 | A kind of family expenses door device of low noise |
| CN206972043U (en) * | 2017-05-03 | 2018-02-06 | 昆明三德木门制造有限公司 | A kind of timber component that can prevent that door closer from coming off |
| CN108035668A (en) * | 2017-12-07 | 2018-05-15 | 重庆工程职业技术学院 | A kind of decoration door for owner's abreaction |
| CN108571256A (en) * | 2017-03-09 | 2018-09-25 | 天津龙甲特种门窗有限公司 | A kind of interior door with pooling feature |
| CN109184518A (en) * | 2018-09-29 | 2019-01-11 | 湖州韵高木业有限公司 | Self-retaining bilayer mute wood door |
| CN109372883A (en) * | 2018-11-26 | 2019-02-22 | 储国亲 | A kind of precision machinery components installation buffer-type wave spring washer |
-
2019
- 2019-03-07 CN CN201910172664.9A patent/CN109854128B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202023458U (en) * | 2011-03-01 | 2011-11-02 | 上海世吉木业有限公司 | Firm door jamb |
| CN202164961U (en) * | 2011-05-23 | 2012-03-14 | 李肄飞 | Hand clamp prevention safety door |
| CN108571256A (en) * | 2017-03-09 | 2018-09-25 | 天津龙甲特种门窗有限公司 | A kind of interior door with pooling feature |
| CN206972043U (en) * | 2017-05-03 | 2018-02-06 | 昆明三德木门制造有限公司 | A kind of timber component that can prevent that door closer from coming off |
| CN107269193A (en) * | 2017-07-21 | 2017-10-20 | 李耀强 | A kind of family expenses door device of low noise |
| CN108035668A (en) * | 2017-12-07 | 2018-05-15 | 重庆工程职业技术学院 | A kind of decoration door for owner's abreaction |
| CN109184518A (en) * | 2018-09-29 | 2019-01-11 | 湖州韵高木业有限公司 | Self-retaining bilayer mute wood door |
| CN109372883A (en) * | 2018-11-26 | 2019-02-22 | 储国亲 | A kind of precision machinery components installation buffer-type wave spring washer |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109854128B (en) | 2020-06-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN213234793U (en) | Protective door with buffering function for civil air defense engineering | |
| CN111839027A (en) | A commodity circulation express delivery cabinet down line for internet transaction | |
| CN109854128A (en) | A kind of anticollision aluminium alloy door and its environmentally friendly manufacturing process | |
| CN109357109B (en) | Adjustable electric power cabinet vibration damping mount | |
| CN210599804U (en) | Cone crusher locking bolt | |
| CN109577804B (en) | Manual aluminum alloy door and window convenient to expand | |
| CN110219506A (en) | A kind of Anti-seismic intelligent door lock of easy access | |
| CN211008081U (en) | Bolt with shockproof function of making an uproar of falling | |
| CN205684123U (en) | A kind of impact breaker | |
| CN210660917U (en) | Expansion bolt capable of improving fixing effect | |
| CN211542513U (en) | Fixing mechanism of compression device for garbage classification | |
| CN209482977U (en) | Limit hinge | |
| CN207758734U (en) | A kind of anticollision mechanism of Intelligent Mobile Robot | |
| CN213508124U (en) | Safety warning device for hydraulic engineering construction that possesses quick installation function | |
| CN216110291U (en) | Impact-resistant aluminum alloy door and window | |
| CN113585885B (en) | Outdoor communication equipment entrance guard management device | |
| CN220547701U (en) | Ring rolling machine with fixed knot constructs | |
| CN117145906B (en) | Detachable shock absorber and dismounting device thereof | |
| CN205700802U (en) | Reaction type lithotrite | |
| CN218559875U (en) | Separator in vanadium nitrogen alloy ball production | |
| CN207682257U (en) | A kind of spanner | |
| CN212583550U (en) | Safety protection device of anti-theft door | |
| CN220247820U (en) | Building safety protection net | |
| CN208473450U (en) | A kind of closed guard gate's swing handle | |
| CN218970894U (en) | Protective motor cabinet beneficial to locking |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |