CN114790860A - Double-door adjustable door leaf limiter for digital media classroom - Google Patents
Double-door adjustable door leaf limiter for digital media classroom Download PDFInfo
- Publication number
- CN114790860A CN114790860A CN202111533310.6A CN202111533310A CN114790860A CN 114790860 A CN114790860 A CN 114790860A CN 202111533310 A CN202111533310 A CN 202111533310A CN 114790860 A CN114790860 A CN 114790860A
- Authority
- CN
- China
- Prior art keywords
- cavity
- hole
- strong magnetic
- magnetic steel
- door leaf
- 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
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 64
- 239000010959 steel Substances 0.000 claims abstract description 64
- 230000005291 magnetic effect Effects 0.000 claims abstract description 57
- 229910001220 stainless steel Inorganic materials 0.000 claims description 22
- 239000010935 stainless steel Substances 0.000 claims description 22
- 239000004579 marble Substances 0.000 claims description 8
- 238000001179 sorption measurement Methods 0.000 claims description 3
- 230000006870 function Effects 0.000 abstract description 10
- 230000000694 effects Effects 0.000 description 6
- 230000005294 ferromagnetic effect Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000005389 magnetism Effects 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000030279 gene silencing Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C17/00—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith
- E05C17/56—Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith by magnetic or electromagnetic attraction or operated by electric or electromagnetic means
-
- 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
- E05F5/00—Braking devices, e.g. checks; Stops; Buffers
- E05F5/06—Buffers or stops limiting opening of swinging wings, e.g. floor or wall stops
Abstract
A digital media classroom double-door adjustable door leaf limiter comprises a limiter body, an upper sliding block, a large spring, an elastic rubber block, a lower sliding block, first strong magnetic steel, second strong magnetic steel and a floor board; the stopper is characterized in that the upper part, the left side and the right side of the stopper main body are respectively provided with a convex block, and the convex block is provided with a screw hole; a cavity is arranged in the limiter main body, the opening of the cavity is arranged below the limiter main body, a cavity through hole is arranged above the limiter main body, and the cavity through hole is communicated with the cavity; the diameter size of the cavity through hole is larger than that of the screw rod; the top of the cavity is provided with a first spring ferrule; the circle center of the first spring ferrule and the circle center of the cavity through hole are positioned on the same vertical line; the upper surface of the upper sliding block is provided with a second spring collar and a screw rod, the lower surface of the upper sliding block is bonded with the elastic rubber block, and the lower surface of the elastic rubber block is bonded with the lower sliding block. The invention can reduce the reset noise of the device by using the memory slow reset function of the elastic rubber.
Description
Technical Field
The invention relates to a building hardware fitting, in particular to a double-door adjustable door leaf limiter for a digital media classroom.
Background
The digital media classroom and the practical training room mostly adopt a large-space classroom. In a large-space classroom, a door leaf is a double-leaf vertical hinged door for the convenience of the teachers and students to enter and exit and the standard requirement of fire control. In a classroom adopting double vertical hinged doors, for indoor silence, the door leaves are usually closed during class, but if students go in and out, the door leaves often make loud sound, so that the entering students are embarrassed, and the learning of teachers and students in the classroom is also influenced. If open the door leaf, indoor outer sound is not separated from each other, still is unfavorable for indoor teacher's teaching and student's quiet study, and is installing the indoor space of air conditioner, still can cause the big unrestrained consumption of electric energy. It is very necessary to design the door stopper with a silencing function.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a double-door adjustable door leaf limiter for a digital media classroom.
A double-door adjustable door leaf limiter for a digital media classroom comprises a limiter body, an upper sliding block, a large spring, an elastic rubber block, a lower sliding block, first strong magnetic steel and second strong magnetic steel; the stopper is characterized in that the upper part, the left side and the right side of the stopper main body are respectively provided with a convex block, and the convex blocks are provided with screw holes; a cavity is arranged in the limiter main body, the opening of the cavity is arranged below the limiter main body, a cavity through hole is arranged above the limiter main body, and the cavity through hole is communicated with the cavity; the diameter size of the cavity through hole is larger than that of the screw rod; the top of the cavity is provided with a first spring ferrule; the circle center of the first spring ferrule and the circle center of the cavity through hole are positioned on the same vertical line; a second spring ring and a screw rod are arranged on the upper sliding block, the lower surface of the upper sliding block is bonded with an elastic rubber block, the lower surface of the elastic rubber block is bonded with a lower sliding block, a central through hole is formed in the middle of the elastic rubber block, and an internal threaded hole is formed in the middle of the lower sliding block; the centers of the second spring ring, the screw rod, the central through hole and the threaded hole are positioned on the same vertical line; the screw cap of the countersunk head screw is sleeved with the noise reduction rubber sleeve, the countersunk head screw passes through the middle hole of the first strong magnetic steel and is screwed into the internal thread hole, and the first strong magnetic steel is fixed below the lower sliding block; the screw rod is sleeved with a large spring, passes through the cavity through hole from the lower part of the cavity, and is screwed into the screw cap for fixing; the second strong magnetic steel is fixed on the inner rotary disc, and the diameter of the second strong magnetic steel is smaller than the radius of the inner rotary disc; the middle of the top surface of the inner rotary disc is provided with a direction adjusting groove, the upper end of the outer edge is provided with an annular limiting groove, the side surface of the inner rotary disc is provided with a round hole, a small spring and a stainless steel marble are arranged in the round hole, the diameters of the stainless steel marble and the small spring are smaller than the diameter of the round hole, and the stainless steel marble can protrude out of the round hole under the action of the small spring; the inner rotary disc is placed in the inner cavity of the tray, and the inner rotary disc can rotate in the inner cavity of the tray by applying a rotating external force in the direction adjusting groove by using a tool under the limitation of the blank holder strip; the tray is fixed in a tray preset hole of the ground plate; the stopper body is fixed below the door leaf by a screw.
The length and width of the upper sliding block, the elastic rubber block and the lower sliding block are smaller than those of the cavity, and the upper sliding block, the elastic rubber block and the lower sliding block can slide up and down in the cavity.
The elastic rubber block has a reset function.
When the second strong magnetic steel is limited and fixed by the stainless steel ball, the circle center of the second strong magnetic steel is intersected with the circle center connecting line of the inner rotary disc and the hinge rotating axis on the door leaf, and after the inner rotary disc rotates, the circle center of the second strong magnetic steel is still intersected with the circle center connecting line of the inner rotary disc and the axis of the hinge rotating axis on the door leaf.
Two limiting holes are formed in the inner wall of the inner cavity of the tray, the size of each limiting hole is matched with the stainless steel ball, and a straight line connected with the central points of the two limiting holes is intersected with the center line of the circle center of the tray.
And the opposite surfaces of the first strong magnetic steel and the second strong magnetic steel have opposite magnetism.
The length dimension of the large spring is larger than or equal to that of the screw rod.
The length dimension of the small spring is larger than the sum of the depth of the round hole and the diameter dimension of the stainless steel ball.
By adopting the technical scheme of the invention, the invention has the following beneficial effects:
1) the invention utilizes the memory slow-speed resetting function of the elastic rubber, and can reduce the resetting noise of the device;
2) when the two magnets are attracted to each other and approach to each other, the noise reduction rubber sleeve is arranged between the two magnets, so that the two magnets can be prevented from being damaged by collision, the friction coefficient can be improved, and the effect of silence can be achieved;
3) the distance between the noise reduction rubber sleeve and the magnet attracting block is adjusted by the screw cap, so that the optimal adsorption effect and the mute effect are achieved when the door leaf is limited;
4) the limiting function of the invention to the door leaf can be opened or closed according to the need, and after the limiting function of the door leaf is closed, the opening and closing of the door leaf is not influenced by any limiting device, like no installation.
Drawings
FIG. 1 is a perspective view of the present invention (a state in which a first strong magnetic steel and a second strong magnetic steel are attracted together);
FIG. 2 is a schematic of the construction of the present invention;
FIG. 3 is a schematic view of the construction of the present invention (a state viewed from the bottom side);
FIG. 4 is a partial cross-sectional view showing an internal structure of the present invention (a state in which a first strong magnetic steel and a second strong magnetic steel are attracted together);
FIG. 5 is a schematic view showing that the stopper body of the present invention is installed on a door leaf, a tray is installed on a floor panel, and when the door leaf is opened or closed, the first ferromagnetic steel passes through the second ferromagnetic steel and the first ferromagnetic steel and the second ferromagnetic steel are adsorbed together;
FIG. 6 is a schematic view showing that when the door leaf is opened or closed after the inner dial is rotated 180 degrees, the first strong magnetic steel and the second strong magnetic steel are not adsorbed together;
in the figure: the limiter comprises a limiter body 10, a bump 11, a screw hole 12, a cavity 13, a first spring collar 14, a cavity through hole 15, an upper sliding block 20, a second spring collar 21, a screw rod 22, a screw cap 23, a large spring 30, an elastic rubber block 40, a central through hole 41, a lower sliding block 50, an internal threaded hole 51, a countersunk screw 52, a noise reduction rubber sleeve 53, first strong magnetic steel 60, second strong magnetic steel 70, an inner rotary disc 71, a blank holder strip 72, a tray 73, stainless steel elastic beads 74, a small spring 75, a direction adjusting groove 76, an annular limiting groove 77, a tray inner cavity 78, a round hole 79, a ground panel 80, a tray preset hole 81 and a door leaf 90.
Detailed Description
The invention is further illustrated in the following by way of example and with reference to the accompanying drawings: as shown in fig. 1 to 6, a double-door adjustable door leaf limiter for a digital media classroom comprises a limiter body 10, an upper slider 20, a large spring 30, an elastic rubber block 40, a lower slider 50, a first strong magnetic steel 60 and a second strong magnetic steel 70; the stopper is characterized in that the upper part, the left side and the right side of the stopper main body 10 are respectively provided with a convex block 11, and the convex block 11 is provided with a screw hole 12; a cavity 13 is arranged in the stopper main body 10, an opening of the cavity 13 is arranged below the stopper main body 10, a cavity through hole 15 is arranged above the stopper main body 10, and the cavity through hole 15 is communicated with the cavity 13; the diameter size of the cavity through hole 15 is larger than that of the lead screw 22; the top of the cavity 13 is provided with a first spring collar 14; the circle center of the first spring ring 14 and the circle center of the cavity through hole 15 are on the same vertical line; a second spring ring 21 and a lead screw 22 are arranged on the upper slider 20, the lower surface of the upper slider 20 is bonded with an elastic rubber block 40, the lower surface of the elastic rubber block 40 is bonded with a lower slider 50, a central through hole 41 is arranged in the middle of the elastic rubber block 40, and an internal threaded hole 51 is arranged in the middle of the lower slider 50; the centers of the second spring ring 21, the lead screw 22, the central through hole 41 and the threaded hole 51 are on the same vertical line; the cap of the countersunk head screw 52 is sleeved with a noise reduction rubber sleeve 53, the countersunk head screw 52 penetrates through the middle hole of the first strong magnetic steel 60 and is screwed into the internal threaded hole 51, and the first strong magnetic steel 60 is fixed below the lower sliding block 50; the lead screw 22 is sleeved with a large spring 30, passes through the cavity through hole 15 from the lower part of the cavity 13, and then is screwed into the nut 23 for fixing; the second strong magnetic steel 70 is fixed on the inner rotary disc 71, and the diameter of the second strong magnetic steel 70 is smaller than the radius of the inner rotary disc 71; a direction adjusting groove 76 is formed in the middle of the top face of the inner rotary disc 71, an annular limiting groove 77 is formed in the upper end of the outer edge of the inner rotary disc 71, a round hole 79 is formed in the side face of the inner rotary disc 71, a small spring 75 and a stainless steel ball 74 are arranged in the round hole 79, the diameters of the stainless steel ball 74 and the small spring 75 are smaller than the diameter of the round hole 79, and the stainless steel ball 74 can protrude out of the round hole 79 under the action of the small spring 75; the inner rotary disc 71 is placed in the tray cavity 78, and the inner rotary disc 71 can rotate in the tray cavity 78 by applying external rotary force in the direction adjusting groove 76 by a tool under the limit of the edge pressing strip 72; the tray 73 is fixed in a tray preset hole 81 of the floor panel 80; the stopper body 10 is fixed to the lower side of the door 90 by screws.
The length and width dimensions of the upper slider 20, the elastic rubber block 40, the lower slider 50 and the first strong magnetic steel 60 are all smaller than those of the cavity 13, and the upper slider 20, the elastic rubber block 40, the lower slider 50 and the first strong magnetic steel 60 can slide up and down in the cavity 13.
The elastic rubber block 40 has a reset function.
When the second strong magnetic steel 70 is limited and fixed by the stainless steel ball 74, the connecting line of the circle center of the second strong magnetic steel 70 and the circle center of the inner rotary disc 71 intersects with the axis of the hinge rotating shaft on the door leaf 90, and after the inner rotary disc 71 is rotated 180 degrees, the connecting line of the circle center of the second strong magnetic steel 70 and the circle center of the inner rotary disc 71 still intersects with the axis of the hinge rotating shaft on the door leaf 90.
Two limiting holes are formed in the inner wall of the tray inner cavity 78, the size of each limiting hole is matched with the stainless steel ball 74, and a straight line connecting the central points of the two limiting holes intersects with the center line of the circle center of the tray 73.
The opposite surfaces of the first strong steel 60 and the second strong steel 70 are opposite in magnetism.
After the stainless steel marble 74 falls into the limiting hole on the inner wall of the tray inner cavity 78 and is limited and fixed, the first strong magnetic steel 60 covers the second strong magnetic steel 70 and is adsorbed together to extrude the noise reduction rubber sleeve 53, so that the friction force between the first strong magnetic steel 60 and the second strong magnetic steel 70 can be increased; the door leaf 90 is moved, and the friction force cannot drive the inner rotary disc 71 to rotate.
The length dimension of the large spring 30 is greater than or equal to the length dimension of the lead screw 22.
The length dimension of the small spring 75 is greater than the sum of the depth of the circular hole 79 plus the diameter dimension of the stainless steel ball 74.
The invention utilizes the memory slow reset function of the elastic rubber, and can reduce the reset noise of the device; when the two magnets are attracted to each other and approach to each other, the noise reduction rubber sleeve is arranged between the two magnets, so that the two magnets can be prevented from being damaged by collision, the friction coefficient can be improved, and the effect of silence can be achieved; the distance between the noise reduction rubber sleeve and the magnet attracting block is adjusted by the screw cap, so that the optimal adsorption effect and the mute effect are achieved when the door leaf is limited; the limit function of the invention to the door leaf can be opened or closed according to the need, and after the limit function of the door leaf is closed, the opening and closing of the door leaf is not influenced by any limit device, like no installation.
The above examples of the present invention are provided to illustrate exemplary embodiments of the present invention, and are not intended to limit the embodiments of the present invention. Obvious variations from the embodiments of the present invention are still within the scope of the claims of the present invention.
Claims (9)
1. A double-door adjustable door leaf limiter for a digital media classroom comprises a limiter main body (10), an upper sliding block (20), a large spring (30), an elastic rubber block (40), a lower sliding block (50), first strong magnetic steel (60) and second strong magnetic steel (70); the stopper is characterized in that the upper part, the left side and the right side of the stopper main body (10) are respectively provided with a convex block (11), and the convex block (11) is provided with a screw hole (12); a cavity (13) is arranged in the stopper main body (10), the opening of the cavity (13) is arranged below the stopper main body (10), a cavity through hole (15) is arranged above the stopper main body (10), and the cavity through hole (15) is communicated with the cavity (13); the diameter size of the cavity through hole (15) is larger than that of the screw rod (22); a first spring collar (14) is arranged at the top of the cavity (13); the circle center of the first spring ferrule (14) and the circle center of the cavity through hole (15) are positioned on the same vertical line; a second spring collar (21) and a lead screw (22) are arranged on the upper slider (20), the lower surface of the upper slider (20) is bonded with an elastic rubber block (40), the lower part of the elastic rubber block (40) is bonded with a lower slider (50), a central through hole (41) is formed in the middle of the elastic rubber block (40), and an internal threaded hole (51) is formed in the middle of the lower slider (50); the centers of the second spring ring (21), the screw rod (22), the central through hole (41) and the threaded hole (51) are positioned on the same vertical line; a noise reduction rubber sleeve (53) is sleeved on a screw cap of the countersunk head screw (52), the countersunk head screw (52) penetrates through a middle hole of the first strong magnetic steel (60), is screwed into the internal thread hole (51), and the first strong magnetic steel (60) is fixed below the lower sliding block (50); a screw rod (22) is sleeved with a large spring (30) and passes through the cavity through hole (15) from the lower part of the cavity (13), and then is screwed into the screw cap (23) for fixing; the second strong magnetic steel (70) is fixed on the inner rotary disc (71), and the diameter of the second strong magnetic steel (70) is smaller than the radius of the inner rotary disc (71); a direction adjusting groove (76) is formed in the middle of the top surface of the inner rotary disc (71), an annular limiting groove (77) is formed in the upper end of the outer edge, a round hole (79) is formed in the side surface of the inner rotary disc (71), a small spring (75) and a stainless steel ball (74) are arranged in the round hole (79), the diameters of the stainless steel ball (74) and the small spring (75) are smaller than that of the round hole (79), and the stainless steel ball (74) can protrude out of the round hole (79) under the action of the small spring (75); the inner rotary disc (71) is placed in the tray inner cavity (78), and the inner rotary disc (71) can rotate in the tray inner cavity (78) by applying external rotating force in the direction adjusting groove (76) by using a tool under the limitation of the edge pressing strip (72); the tray (73) is fixed in a tray preset hole (81) of the floor panel (80); the limiter main body (10) is fixed below the door leaf (90) by screws; stainless steel marble (74) fall into the spacing hole on tray inner chamber (78) inner wall in can by spacing fixed, with inner rotating disc (71) rotation 180 degrees, stainless steel marble (74) on inner rotating disc (71) can fall into another spacing hole on tray inner chamber (78) inner wall by spacing fixed once more.
2. The double-door adjustable door leaf limiter for the digital media classroom according to claim 2, wherein after the stainless steel marbles (74) fall into the limiting holes on the inner wall of the tray inner cavity (78) and are limited and fixed, the first strong magnetic steel (60) covers the second strong magnetic steel (70) and is adsorbed together, so that the noise reduction rubber sleeve (53) can be extruded to increase the friction force between the first strong magnetic steel and the second strong magnetic steel, the door leaf (90) is moved, and the friction force formed by the adsorption of the first strong magnetic steel (60) and the second strong magnetic steel (70) cannot drive the inner rotating disc (71) to rotate.
3. The double-door adjustable door leaf limiter for the digital media classroom according to claim 1, wherein the length and width dimensions of the upper sliding block (20), the elastic rubber block (40), the lower sliding block (50) and the first strong magnetic steel (60) are smaller than those of the cavity (13), and the upper sliding block (20), the elastic rubber block (40), the lower sliding block (50) and the first strong magnetic steel (60) can slide up and down in the cavity (13).
4. The double-door adjustable door leaf limiter for digital media classrooms as claimed in claim 1, wherein the elastic rubber block (40) has a reset function.
5. The double-door adjustable door leaf limiter for the digital media classroom according to claim 1, wherein the inner wall of the tray inner cavity (78) is provided with two limiting holes, the size of the limiting holes is matched with that of the stainless steel marble (74), and a straight line connecting the center points of the two limiting holes intersects with the center line of the circle center of the tray (73).
6. The digital media classroom double door adjustable door leaf stop as defined in claim 1 wherein the opposing faces of the first strong steel (60) and the second strong steel (70) are opposite in magnetic properties.
7. The adjustable door leaf stop for a double door in a digital media classroom according to claim 1 wherein the length dimension of the large spring (30) is greater than or equal to the length dimension of the lead screw (22).
8. The adjustable door leaf stop for a double door in a digital media classroom as recited in claim 1, wherein the length dimension of the small spring (75) is greater than the sum of the depth of the round hole (79) plus the diameter dimension of the stainless steel marble (74).
9. The double-door adjustable door leaf limiter for the digital media classroom according to claim 1, wherein the first strong magnetic steel (60) covers the second strong magnetic steel (70), and when the distance between the first strong magnetic steel (60) and the second strong magnetic steel (70) is less than 3mm, the elastic rubber block (40) can be pulled to deform by the attraction force between the first strong magnetic steel (60) and the second strong magnetic steel (70).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111533310.6A CN114790860B (en) | 2021-12-15 | 2021-12-15 | Adjustable door leaf limiter of digital media classroom double door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111533310.6A CN114790860B (en) | 2021-12-15 | 2021-12-15 | Adjustable door leaf limiter of digital media classroom double door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114790860A true CN114790860A (en) | 2022-07-26 |
| CN114790860B CN114790860B (en) | 2024-01-30 |
Family
ID=82460606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111533310.6A Active CN114790860B (en) | 2021-12-15 | 2021-12-15 | Adjustable door leaf limiter of digital media classroom double door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114790860B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114790859A (en) * | 2021-12-15 | 2022-07-26 | 重庆工业职业技术学院 | Installation and use method of classroom double-opening door leaf limiter |
Citations (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3323993A1 (en) * | 1983-07-02 | 1985-01-03 | Roland 3380 Goslar Drignath | Magnetic door-stop devices |
| JP3027462U (en) * | 1996-02-01 | 1996-08-09 | ツェン，チュン−チャン | Door check structure |
| DE29622577U1 (en) * | 1996-12-31 | 1997-04-30 | Schneider Roman | Buffer with activatable locking device |
| CN1211297A (en) * | 1996-12-18 | 1999-03-17 | 道尔玛有限公司和两合公司 | Emergency opening device for a folding hinged door or a folding hinged gate |
| JP2004204457A (en) * | 2002-12-24 | 2004-07-22 | Systec Kyowa:Kk | Door stop device |
| CN201281994Y (en) * | 2008-08-29 | 2009-07-29 | 欧亚马自行车(太仓)有限公司 | Multipurpose connector |
| US20150361707A1 (en) * | 2014-06-16 | 2015-12-17 | DoorDots, LLC | Door Stop Device And Method |
| JP2017066819A (en) * | 2015-10-01 | 2017-04-06 | 株式会社システックキョーワ | Door stopper |
| CN106837044A (en) * | 2017-03-31 | 2017-06-13 | 重庆工业职业技术学院 | One kind hangs slide non-contact type stopping means and its application method |
| CN107313669A (en) * | 2017-08-25 | 2017-11-03 | 石光明 | Invisible multifunctional door-inhale |
| CN107524362A (en) * | 2017-09-02 | 2017-12-29 | 重庆工业职业技术学院 | A kind of noiseless door attraction device and its installation method |
| CN207813319U (en) * | 2018-02-06 | 2018-09-04 | 重庆公共运输职业学院 | A kind of locator of adjustable vertical hinged door positioning dynamics |
| CN108533104A (en) * | 2018-06-03 | 2018-09-14 | 重庆市炙热科技发展有限公司 | A kind of buffering door-inhale and its installation method |
| CN208010140U (en) * | 2018-01-11 | 2018-10-26 | 郭细婷 | A kind of household items anti-extrusion protection cap |
| CN208564246U (en) * | 2018-06-06 | 2019-03-01 | 曹汉添 | Non-contact Magnetic door-inhale |
| CN110067457A (en) * | 2019-04-29 | 2019-07-30 | 左莉莉 | A kind of buffer-type magnetism door-inhale |
| CN110118043A (en) * | 2018-02-06 | 2019-08-13 | 重庆公共运输职业学院 | A kind of vertical hinged door adjustable positioner and its installation method |
| CN210152466U (en) * | 2019-05-07 | 2020-03-17 | 重庆公共运输职业学院 | Door stopper with mute function |
| CN210343025U (en) * | 2019-06-18 | 2020-04-17 | 郑双喜 | Wind-proof door ground sucker |
| CN213477953U (en) * | 2020-08-25 | 2021-06-18 | 烟台市百事特消防科技有限公司 | Hidden finished door protection ground is inhaled |
| CN114790859A (en) * | 2021-12-15 | 2022-07-26 | 重庆工业职业技术学院 | Installation and use method of classroom double-opening door leaf limiter |
-
2021
- 2021-12-15 CN CN202111533310.6A patent/CN114790860B/en active Active
Patent Citations (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3323993A1 (en) * | 1983-07-02 | 1985-01-03 | Roland 3380 Goslar Drignath | Magnetic door-stop devices |
| JP3027462U (en) * | 1996-02-01 | 1996-08-09 | ツェン，チュン−チャン | Door check structure |
| CN1211297A (en) * | 1996-12-18 | 1999-03-17 | 道尔玛有限公司和两合公司 | Emergency opening device for a folding hinged door or a folding hinged gate |
| DE29622577U1 (en) * | 1996-12-31 | 1997-04-30 | Schneider Roman | Buffer with activatable locking device |
| JP2004204457A (en) * | 2002-12-24 | 2004-07-22 | Systec Kyowa:Kk | Door stop device |
| CN201281994Y (en) * | 2008-08-29 | 2009-07-29 | 欧亚马自行车(太仓)有限公司 | Multipurpose connector |
| US20150361707A1 (en) * | 2014-06-16 | 2015-12-17 | DoorDots, LLC | Door Stop Device And Method |
| JP2017066819A (en) * | 2015-10-01 | 2017-04-06 | 株式会社システックキョーワ | Door stopper |
| CN106837044A (en) * | 2017-03-31 | 2017-06-13 | 重庆工业职业技术学院 | One kind hangs slide non-contact type stopping means and its application method |
| CN107313669A (en) * | 2017-08-25 | 2017-11-03 | 石光明 | Invisible multifunctional door-inhale |
| CN107524362A (en) * | 2017-09-02 | 2017-12-29 | 重庆工业职业技术学院 | A kind of noiseless door attraction device and its installation method |
| CN208010140U (en) * | 2018-01-11 | 2018-10-26 | 郭细婷 | A kind of household items anti-extrusion protection cap |
| CN207813319U (en) * | 2018-02-06 | 2018-09-04 | 重庆公共运输职业学院 | A kind of locator of adjustable vertical hinged door positioning dynamics |
| CN110118043A (en) * | 2018-02-06 | 2019-08-13 | 重庆公共运输职业学院 | A kind of vertical hinged door adjustable positioner and its installation method |
| CN108533104A (en) * | 2018-06-03 | 2018-09-14 | 重庆市炙热科技发展有限公司 | A kind of buffering door-inhale and its installation method |
| CN208564246U (en) * | 2018-06-06 | 2019-03-01 | 曹汉添 | Non-contact Magnetic door-inhale |
| CN110067457A (en) * | 2019-04-29 | 2019-07-30 | 左莉莉 | A kind of buffer-type magnetism door-inhale |
| CN210152466U (en) * | 2019-05-07 | 2020-03-17 | 重庆公共运输职业学院 | Door stopper with mute function |
| CN210343025U (en) * | 2019-06-18 | 2020-04-17 | 郑双喜 | Wind-proof door ground sucker |
| CN213477953U (en) * | 2020-08-25 | 2021-06-18 | 烟台市百事特消防科技有限公司 | Hidden finished door protection ground is inhaled |
| CN114790859A (en) * | 2021-12-15 | 2022-07-26 | 重庆工业职业技术学院 | Installation and use method of classroom double-opening door leaf limiter |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114790859A (en) * | 2021-12-15 | 2022-07-26 | 重庆工业职业技术学院 | Installation and use method of classroom double-opening door leaf limiter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114790860B (en) | 2024-01-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3903567A (en) | Two knuckle hinges | |
| CN114790860A (en) | Double-door adjustable door leaf limiter for digital media classroom | |
| KR20210034062A (en) | Hinge plate structure | |
| US11274490B2 (en) | Top-hanging sliding door including bottom guide and seal | |
| AU2016333281B2 (en) | Angle-adjustable positioning and self-closing hinge for highly sealed door | |
| CN109681063A (en) | A kind of refrigerator doors hinge with Damped structure | |
| CN112922476B (en) | Door hinge | |
| US20170198507A1 (en) | Adjustable pivot set | |
| EP2262358B1 (en) | Animal door having an adjustable resistance against being opened | |
| CN114790859B (en) | Installation and use method of classroom double-door fan limiter | |
| WO2019206220A1 (en) | Movable refrigerator allowing bidirectional door opening | |
| CN110118043B (en) | Adjustable positioner for vertical hinged door and installation method thereof | |
| CN207485194U (en) | mute magnetic hinge door closer | |
| CN108590419B (en) | Automatic window opening and closing device | |
| KR101840515B1 (en) | Adjustable shock-absorbing hinge | |
| CN114382361A (en) | Use method of door leaf virtual covering device beneficial to building indoor energy saving | |
| KR20230022465A (en) | Sliding Door | |
| CN216767203U (en) | Two devices that open a flat screen symmetry type open door | |
| CN217269614U (en) | Induction door shaft for archaize building | |
| CN213269547U (en) | Bidirectional electromagnetic type opening and closing door | |
| CN109025599B (en) | Automatic door closing device | |
| CN212472907U (en) | Angle-adjustable whiteboard device | |
| CN203961699U (en) | Safety door | |
| CN218375995U (en) | Buffer device | |
| US20240068283A1 (en) | Magnetic Door Closure |
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 |