CN112963072A - Civil air defense engineering protective equipment - Google Patents
Civil air defense engineering protective equipment Download PDFInfo
- Publication number
- CN112963072A CN112963072A CN202110138485.0A CN202110138485A CN112963072A CN 112963072 A CN112963072 A CN 112963072A CN 202110138485 A CN202110138485 A CN 202110138485A CN 112963072 A CN112963072 A CN 112963072A
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- China
- Prior art keywords
- arc
- wall
- groove
- door leaf
- slider
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Links
- 230000007123 defense Effects 0.000 title claims abstract description 21
- 230000001681 protective effect Effects 0.000 title claims description 11
- 210000002421 cell wall Anatomy 0.000 claims description 6
- 230000006978 adaptation Effects 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 2
- 238000005192 partition Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Images
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
- E06B5/00—Doors, windows, or like closures for special purposes; Border constructions therefor
- E06B5/10—Doors, windows, or like closures for special purposes; Border constructions therefor for protection against air-raid or other war-like action; for other protective purposes
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/60—Power-operated mechanisms for wings using electrical actuators
- E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
- E05F15/611—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings
- E05F15/627—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for swinging wings operated by flexible elongated pulling elements, e.g. belts, chains or cables
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- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Power-Operated Mechanisms For Wings (AREA)
Abstract
The invention discloses a civil air defense engineering protection device, which has the advantage that a door leaf can be automatically opened when needing to be opened, and relates to the technical field of civil air defense engineering, wherein the technical scheme comprises the following key points: when the door leaf rotates around the hinge shaft of the door frame, one end of the side surface of the door leaf close to the ground is provided with a connecting ring, an arc-shaped groove which is distributed along the connecting ring along with the rotation of the door leaf is formed in the ground, and a driving piece which drives the connecting ring to move along the arc-shaped groove is arranged in the arc-shaped groove.
Description
Technical Field
The invention relates to the technical field of civil air defense engineering, in particular to civil air defense engineering protection equipment.
Background
The civil air defense project is an underground protective building which is independently built for guaranteeing personnel and material shelter, civil air defense command and medical rescue in wartime and a basement which is built by combining the ground building and can be used for air defense in wartime, the civil air defense door is a door of a civil air defense project access, the civil air defense door is a door of the civil air defense project access, the classification of the civil air defense door is more distinct, and the civil air defense project access comprises various civil air defense devices such as a common single-leaf protective airtight door, a common double-leaf protective airtight door, an airtight door, a movable threshold single-leaf protective airtight door, a common double-leaf protective airtight door and an airtight door. A partition door is a kind of door for separating two spaces.
Chinese patent No. CN211975062U discloses a protective airtight partition door for civil air defense engineering of underground railway, which comprises a door frame installed in a wall body and adapted to a wall opening, and a door leaf rotatably connected to one side of the door frame.
However, the door leaf is generally heavy, and the operator, especially women or people with poor physical strength, needs to spend a lot of strength when opening the door leaf, causing inconvenience in use.
Disclosure of Invention
The invention aims to provide civil air defense engineering protection equipment, which has the advantage that a door leaf can be automatically opened when needing to be opened.
The technical purpose of the invention is realized by the following technical scheme: the utility model provides a civil air defense engineering protective equipment, is including installing in the wall with the door frame of wall opening looks adaptation and rotating the door leaf of connecting in door frame one side, when the door leaf rotated round and door frame hinged shaft, the one end that the door leaf side is close to ground is equipped with the go-between, subaerially sets up along the go-between along the arc wall that the door leaf rotated and distributes, be equipped with the driving piece that the drive go-between removed along the arc wall in the arc wall.
Through adopting above-mentioned technical scheme, the driving piece will drive the go-between and remove in the arc wall, and the arc wall is along with the pivoted route of door leaf and set up, and the driving piece will drive power and transmit to the door leaf through the go-between this moment, and then the door leaf of being convenient for opens or closes along with the drive of driving piece, and the door leaf can realize automatic opening this moment, practices thrift the labour, convenient to use.
Preferably: the driving piece is including dismantling the box of placing of connection in the arc wall and opening up, it distributes along the arc wall to place the box, it is connected with the slider that removes along the arc wall radian to place the box internal slip, be equipped with the connecting piece of being connected with the go-between on the slider, place the spout that the box diapire offered and supply the slider to remove, the slider all is equipped with the stay cord along the both ends of slider moving direction, it all is equipped with the motor on the relative box wall of box to place, the one end winding that the slider was kept away from to the stay cord is in the pivot of motor.
Preferably: the door leaf connecting structure is characterized in that one end, far away from the door leaf, of the connecting ring extends into the arc-shaped groove, the connecting piece comprises an entering groove which is formed in the sliding block and is used for the connecting ring to enter, one side groove wall of the entering groove extends out of one side wall of the sliding block, after the connecting ring enters the entering groove, a screw rod which penetrates through the connecting ring is in threaded connection with the groove wall of the entering groove, a pressing rod is in threaded connection with the screw rod, and the connecting ring is limited between the entering groove and the pressing.
Preferably: the side of the door leaf is provided with a clamping plate, and the connecting ring is provided with a connecting column in threaded connection with the clamping plate.
Preferably: the sliding groove is connected with a plurality of guide rods on two sides of the sliding block in a sliding mode, a guide hole for the stay rope to penetrate through is formed in one end, far away from the sliding groove, of each guide rod, the adjacent guide rods are connected through first elastic ropes, and the guide rods close to the sliding block are connected with the sliding block through second elastic ropes.
Preferably: the door leaf placing box is characterized in that a plurality of limiting blocks entering the arc-shaped groove are arranged at the bottom of the placing box, a connecting plate attached to the ground is arranged on a box opening of the placing box, and the connecting ring at the lower end of the door leaf rotates to the position farthest from the lower end door frame in the arc-shaped groove.
Preferably: the connecting plate is provided with a vertical plate, the vertical plate is in threaded connection with a touch rod, one end of the touch rod penetrates through the vertical plate to be abutted against the door leaf, and the other end of the touch rod extends out of the other side of the vertical plate and is provided with a hand wheel.
Preferably: the wall of the opposite groove of the arc-shaped groove is connected with a plurality of stop levers distributed along the radial direction of the arc-shaped groove in a sliding mode, the stop levers are distributed close to the notches of the arc-shaped groove, adjacent stop levers are connected through a third elastic rope, the stop levers close to the wall of the opposite groove of the arc-shaped groove and the sliding block are connected through a fourth elastic rope, and the stop levers close to the sliding block are connected with the sliding block through a fifth elastic rope.
Preferably: the relative cell wall of arc wall is gone up along the arc wall radian direction and is offered the standing groove that supplies the pin to get into, the one end that the pin was kept away from to the fourth elastic rope is connected with the cell wall of standing groove.
Preferentially: the clamping plate is provided with a plurality of connecting holes for connecting the connecting columns.
In conclusion, the invention has the following beneficial effects: the driving piece will drive the go-between and remove in the arc wall, and the arc wall is along with the pivoted route of door leaf and set up, and the driving piece will drive power and transmit to the door leaf through the go-between this moment, and then the door leaf of being convenient for opens or closes along with the drive of driving piece, and the door leaf can realize opening automatically this moment, practices thrift the labour, convenient to use.
Drawings
FIG. 1 is a schematic structural view of the present embodiment;
FIG. 2 is an enlarged schematic view of portion A of FIG. 1;
FIG. 3 is a schematic structural view of the present embodiment for embodying the bar;
FIG. 4 is a schematic structural view of the present embodiment for embodying an entry slot;
FIG. 5 is a schematic structural view of the present embodiment for embodying the second elastic cord;
fig. 6 is a schematic structural diagram for embodying the limiting block in this embodiment.
In the figure: 1. a door leaf; 11. a connecting ring; 12. an arc-shaped slot; 121. placing the box; 122. a slider; 123. a chute; 124. pulling a rope; 125. a motor; 126. entering a groove; 127. a screw; 128. a pressure lever; 13. clamping a plate; 131. connecting columns; 14. a guide bar; 141. a guide hole; 142. a first elastic cord; 143. a second elastic cord; 15. a limiting block; 151. a connecting plate; 152. a vertical plate; 153. a touch bar; 16. a stop lever; 161. a third elastic cord; 162. a fourth elastic cord; 163. a fifth elastic cord; 17. a placement groove; 18. and connecting the holes.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
The utility model provides a civil air defense engineering protective equipment, as shown in figure 1 and figure 2, including install in the wall with the door frame of wall opening looks adaptation and rotate the door leaf 1 of connecting in door frame one side, when door leaf 1 round and door frame articulated axle rotate, the one end that the door leaf 1 side is close to ground is equipped with go-between 11, subaerial the arc wall 12 of offering along go-between 11 along door leaf 1 rotation and distribution, be equipped with the driving piece that drive go-between 11 removed along arc wall 12 in the arc wall 12.
As shown in fig. 1 and 2, the driving member drives the connecting ring 11 to move in the arc-shaped groove 12, the arc-shaped groove 12 is opened along with the rotating path of the door leaf 1, the driving member transmits the driving force to the door leaf 1 through the connecting ring 11, and the door leaf 1 is convenient to open or close along with the driving of the driving member, and the door leaf 1 can be automatically opened at the moment, so that labor force is saved, and the door leaf is convenient to use.
As shown in fig. 2 and 4, the driving member includes a placing box 121 detachably connected in the arc-shaped slot 12 and having an upward opening, at this time, the placing box 121 can be selectively placed or not placed according to requirements, the placing box 121 is distributed along the arc-shaped slot 12, a sliding block 122 moving along the arc-shaped slot 12 is connected in the placing box 121 in a sliding manner, a connecting member connected with the connecting ring 11 is arranged on the sliding block 122, a sliding slot 123 for the sliding block 122 to move is formed in the bottom wall of the placing box 121, pulling ropes 124 are respectively arranged at two ends of the sliding block 122 along the moving direction of the sliding block 122, a motor 125 is arranged on the placing box 121 opposite to the box wall, at this time, the motor 125 is arranged on the box wall of the placing box 121 on one side close to the door frame and one side far from the door frame, one end of the pulling rope 124 far from the sliding block 122 is wound on a rotating shaft of the motor 125, at this moment, the sliding block 122 drives the connecting ring 11 to further drive the door leaf 1 to rotate, so that the door leaf 1 is closed, when the door leaf needs to be opened, the motor 125 far away from the door frame starts to work, and then the sliding block 122 moves towards the direction far away from the door frame, so that the door leaf 1 is opened, and the operation is simple.
As shown in fig. 2 and 4, one end of the connection ring 11 far from the door leaf 1 extends into the arc-shaped groove 12, the connection member includes an entry groove 126 opened on the slider 122 and into which the connection ring 11 enters, a side wall of the entry groove 126 extends out of a side wall of the slider 122 so that the connection ring 11 horizontally enters the entry groove 126, after the connection ring 11 enters the entry groove 126, a screw 127 penetrating through the connection ring 11 is threadedly connected to a wall of the entry groove 126, a pressing rod 128 is threadedly connected to the screw 127, the pressing rod 128 limits the connection ring 11 between the entry groove 126 and the pressing rod 128, at this time, after the pressing rod 128 is screwed into the screw 127, the connection ring 11 is limited between the wall of the entry groove 126 and the pressing rod 128, the connection ring 11 can be pressed against the wall of the entry groove 126, the connection ring 11 can also be located between the wall of the entry groove 126 and the.
As shown in fig. 2 and 4, a clamping plate 13 is arranged on the side surface of the door leaf 1, and a connecting column 131 in threaded connection with the clamping plate 13 is arranged on the connecting ring 11. At this time, the distance between the connecting ring 11 and the door frame is increased, which is convenient for opening the arc-shaped groove 12. The clamping plate 13 is provided with a plurality of connecting holes 18 for connecting the connecting column 131, the connecting position of the connecting column 131 and the clamping plate 13 is changed, the position of the connecting ring 11 is further changed, the use requirement is met, and the arc-shaped groove 12 is convenient to open according to the actual installation condition.
As shown in fig. 2 and 5, in order to reduce the interference between the pulling rope 124 and the box wall of the placing box 121, the sliding slot 123 is slidably connected with a plurality of guide rods 14 on both sides of the sliding block 122, one end of each guide rod 14 far away from the sliding slot 123 is provided with a guide hole 141 for the pulling rope 124 to pass through, adjacent guide rods 14 are connected through a first elastic rope 142, and the guide rod 14 close to the sliding block 122 is connected with the sliding block 122 through a second elastic rope 143. When the sliding block 122 moves towards one side of the door frame, the sliding block 122 gradually presses the guide rods 14 close to the sliding block 122 to move towards the door frame, at this time, the first elastic rope 142 and the second elastic rope 143 between the pressed guide rods 14 gradually retract, so that the pulling rope 124 close to the door frame side moves along with the distribution of the guide rods 14, each guide rod 14 on one side of the sliding block 122 away from the door frame is gradually pulled to move in the sliding groove 123 along with the movement of the sliding block 122, at this time, the pulling rope 124 on the side moves along the guide of each guide rod 14, and the motor 125 applies pulling force to the sliding block 122 through the pulling rope 124.
As shown in fig. 1 and 6, the bottom of the placing box 121 is provided with a plurality of limiting blocks 15 entering the arc-shaped groove 12, a box opening of the placing box 121 is provided with a connecting plate 151 attached to the ground, and the connecting ring 11 at the lower end of the door leaf 1 rotates in the arc-shaped groove 12 to the position farthest from the lower end door frame. The connection plate 151 and the stopper 15 allow the placing case 121 to be placed in the arc-shaped groove 12, and the connection plate 151 facilitates a user to take out the placing case 121.
As shown in fig. 1 and 6, a vertical plate 152 is disposed on the connecting plate 151, a touch rod 153 is screwed on the vertical plate 152, one end of the touch rod 153 penetrates through the vertical plate 152 to touch the door leaf 1, and the other end extends out of the other side of the vertical plate 152 and is provided with a hand wheel. The hand wheel is rotated, so that the vertical plate 152 is screwed out of one end of the touch rod 153, and the screwing-out distance of the touch rod 153 at the moment can limit the opening and closing size of the door leaf 1, thereby meeting the use requirement.
As shown in fig. 3, in order to reduce the step of the user into the arc-shaped groove 12, the height of the box for placing the box 121 is lower than the depth of the arc-shaped groove 12, at this time, a plurality of stop levers 16 distributed along the radial direction of the arc-shaped groove 12 are connected to the wall of the arc-shaped groove 12 in a sliding manner, the stop levers 16 are located above the box 121, the stop levers 16 are distributed near the notches of the arc-shaped groove 12, adjacent stop levers 16 are connected by a third elastic rope 161, the stop lever 16 near the wall of the arc-shaped groove 12 opposite to the slider 122 is connected to the wall of the arc-shaped groove 12 by a fourth elastic rope 162, and the stop lever 16 near the slider 122 is connected to the slider 122 by a fifth elastic rope 163. At this time, the sliding block 122 can drive each stop lever 16 to gradually open or merge the notches of the arc-shaped grooves 12 when moving, so as to meet the use requirements.
As shown in fig. 3, a placing groove 17 for the stop lever 16 to enter is formed on the opposite wall of the arc-shaped groove 12 along the arc direction of the arc-shaped groove 12, and one end of the fourth elastic rope 162 far away from the stop lever 16 is connected with the wall of the placing groove 17. The arrangement of the placing groove 17 enables each stop lever 16 to enter the placing groove 17, the connecting plate 151 is not arranged, when the stop lever 16 enters the placing groove 17, the moving range of the sliding block 122 is enlarged, the opening and closing range of the door leaf 1 is enlarged, and the use requirement is met.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.
Claims (10)
1. The utility model provides a civil air defense engineering protective equipment, is including installing in the wall in with the door frame of wall opening looks adaptation and rotate door leaf (1) of connecting in door frame one side, characterized by: when the door leaf (1) rotates around the hinge shaft of the door frame, one end, close to the ground, of the side surface of the door leaf (1) is provided with a connecting ring (11), an arc-shaped groove (12) which is distributed along the connecting ring (11) along with the rotation of the door leaf (1) is formed in the ground, and a driving piece which drives the connecting ring (11) to move along the arc-shaped groove (12) is arranged in the arc-shaped groove (12).
2. An ergonomic guard as claimed in claim 1, wherein: the driving piece is including dismantling the connection in arc wall (12) and opening place box (121) up, place box (121) and distribute along arc wall (12), place slider (122) that box (121) internal slipping was connected with and moved along arc wall (12) radian, be equipped with the connecting piece of being connected with go-between (11) on slider (122), place box (121) diapire and set up spout (123) that supply slider (122) to remove, slider (122) all are equipped with stay cord (124) along the both ends of slider (122) moving direction, it all is equipped with motor (125) on the relative box wall of box (121) to place, stay cord (124) are kept away from the one end winding of slider (122) and are in the pivot of motor (125).
3. An ergonomic guard as claimed in claim 2, wherein: one end, far away from door leaf (1), of connecting ring (11) extends to in arc groove (12), the connecting piece is including seting up entering groove (126) that just supplies connecting ring (11) to get into on slider (122), one side cell wall of entering groove (126) extends a lateral wall of slider (122), after connecting ring (11) got into entering groove (126), threaded connection has screw rod (127) that passes connecting ring (11) on the cell wall of entering groove (126), threaded connection has depression bar (128) on screw rod (127), depression bar (128) are spacing connecting ring (11) between entering groove (126) and depression bar (128).
4. An ergonomic guard as claimed in claim 3, wherein: the door leaf (1) side is equipped with cardboard (13), be equipped with spliced pole (131) with cardboard (13) threaded connection on go-between (11).
5. An ergonomic guard as claimed in claim 2, wherein: the sliding groove (123) is connected with a plurality of guide rods (14) on two sides of the sliding block (122) in a sliding mode, one end, far away from the sliding groove (123), of each guide rod (14) is provided with a guide hole (141) for the stay cord (124) to penetrate through, the adjacent guide rods (14) are connected through a first elastic rope (142), and the guide rods (14) close to the sliding block (122) are connected with the sliding block (122) through second elastic ropes (143).
6. An ergonomic guard as claimed in claim 2, wherein: the door is characterized in that a plurality of limiting blocks (15) entering the arc-shaped groove (12) are arranged at the bottom of the placing box (121), a connecting plate (151) attached to the ground is arranged on a box opening of the placing box (121), and the connecting ring (11) located at the lower end of the door leaf (1) rotates in the arc-shaped groove (12) to the position farthest away from the lower end door frame.
7. An ergonomic guard as claimed in claim 6, wherein: the door leaf is characterized in that a vertical plate (152) is arranged on the connecting plate (151), a touch rod (153) is connected to the vertical plate (152) in a threaded mode, one end of the touch rod (153) penetrates through the vertical plate (152) to be abutted against the door leaf (1), and the other end of the touch rod extends out of the other side of the vertical plate (152) and is provided with a hand wheel.
8. An ergonomic guard as claimed in claim 1, wherein: arc wall (12) relative groove wall goes up to slide and is connected with a plurality of pin (16) that distribute along arc wall (12) radial direction, pin (16) are close to the notch distribution of arc wall (12), connect through third elasticity rope (161) between adjacent pin (16), are close to be connected through fourth elasticity rope (162) between pin (16) and the arc wall (12) cell wall of the relative cell wall of arc wall (12) and slider (122), be close to slider (122) be connected through fifth elasticity rope (163) between pin (16) and slider (122).
9. An ergonomic guard as claimed in claim 8, wherein: a placing groove (17) for the stop lever (16) to enter is formed in the arc-shaped groove (12) relative to the groove wall along the arc direction of the arc-shaped groove (12), and one end, far away from the stop lever (16), of the fourth elastic rope (162) is connected with the groove wall of the placing groove (17).
10. An ergonomic guard as claimed in claim 4, wherein: the clamping plate (13) is provided with a plurality of connecting holes (18) for connecting the connecting columns (131).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110138485.0A CN112963072B (en) | 2021-02-01 | 2021-02-01 | Civil air defense engineering protective equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110138485.0A CN112963072B (en) | 2021-02-01 | 2021-02-01 | Civil air defense engineering protective equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112963072A true CN112963072A (en) | 2021-06-15 |
| CN112963072B CN112963072B (en) | 2022-09-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110138485.0A Active CN112963072B (en) | 2021-02-01 | 2021-02-01 | Civil air defense engineering protective equipment |
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| Country | Link |
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| CN (1) | CN112963072B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208650732U (en) * | 2018-06-12 | 2019-03-26 | 重庆惠利普斯环保设备有限公司 | The pressure-applying unit of pressure release safety door |
| CN109736673A (en) * | 2019-01-17 | 2019-05-10 | 中国建筑标准设计研究院有限公司 | A kind of manual and Electronic control high drag seal protection door |
| CN209621051U (en) * | 2019-01-30 | 2019-11-12 | 合肥市顺泰人防工程有限公司 | A kind of rotatable partition door of hydraulic vertical |
| CN210738397U (en) * | 2019-08-24 | 2020-06-12 | 河南省金鑫防护设备有限公司 | Reinforced concrete protective airtight door |
| CN211448383U (en) * | 2019-12-31 | 2020-09-08 | 江苏苏南建筑安装工程有限公司 | Self-lock device with adjustable construction safety guard gate |
| CN212271899U (en) * | 2020-04-08 | 2021-01-01 | 济南工程职业技术学院 | Automatic closed window |
-
2021
- 2021-02-01 CN CN202110138485.0A patent/CN112963072B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208650732U (en) * | 2018-06-12 | 2019-03-26 | 重庆惠利普斯环保设备有限公司 | The pressure-applying unit of pressure release safety door |
| CN109736673A (en) * | 2019-01-17 | 2019-05-10 | 中国建筑标准设计研究院有限公司 | A kind of manual and Electronic control high drag seal protection door |
| CN209621051U (en) * | 2019-01-30 | 2019-11-12 | 合肥市顺泰人防工程有限公司 | A kind of rotatable partition door of hydraulic vertical |
| CN210738397U (en) * | 2019-08-24 | 2020-06-12 | 河南省金鑫防护设备有限公司 | Reinforced concrete protective airtight door |
| CN211448383U (en) * | 2019-12-31 | 2020-09-08 | 江苏苏南建筑安装工程有限公司 | Self-lock device with adjustable construction safety guard gate |
| CN212271899U (en) * | 2020-04-08 | 2021-01-01 | 济南工程职业技术学院 | Automatic closed window |
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| Publication number | Publication date |
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| CN112963072B (en) | 2022-09-09 |
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Effective date of registration: 20240904 Address after: No. 2, Dawei 10th Lane, Xidong Village, Xichang Town, Jiedong County, Jieyang City, Guangdong Province, 522000 Patentee after: Lin Danqin Country or region after: China Address before: 221212 No.8 Jinshan Road, Airport Economic Development Zone, Shuanggou Town, Suining County, Xuzhou City, Jiangsu Province Patentee before: Xuzhou Yuwang civil air defense engineering protection equipment Co.,Ltd. Country or region before: China |