CN114790860B - Adjustable door leaf limiter of digital media classroom double door - Google Patents
Adjustable door leaf limiter of digital media classroom double door Download PDFInfo
- Publication number
- CN114790860B CN114790860B CN202111533310.6A CN202111533310A CN114790860B CN 114790860 B CN114790860 B CN 114790860B CN 202111533310 A CN202111533310 A CN 202111533310A CN 114790860 B CN114790860 B CN 114790860B
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- China
- Prior art keywords
- cavity
- hole
- strong magnetic
- magnetic steel
- door leaf
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 58
- 239000010959 steel Substances 0.000 claims abstract description 58
- 229910001220 stainless steel Inorganic materials 0.000 claims description 21
- 239000010935 stainless steel Substances 0.000 claims description 21
- 239000004579 marble Substances 0.000 claims description 6
- 230000005389 magnetism Effects 0.000 claims description 3
- 238000001179 sorption measurement Methods 0.000 claims description 3
- 230000006870 function Effects 0.000 abstract description 10
- 230000000694 effects Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000001743 silencing effect 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
- 238000005265 energy consumption Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
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- 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
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- 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
The utility model provides a digital media classroom two adjustable door leaf limiters that open door, includes stopper main part, upper slider, big spring, elastic rubber piece, lower slider, first strong magnet steel, second strong magnet steel, floor panel; the stopper is characterized in that the upper part and the left side and the right side of the stopper main body are respectively provided with a lug, and screw holes are formed in the lugs; a cavity is arranged in the limiter main body, an opening of the cavity is arranged below the limiter main body, a cavity through hole is formed 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 sliding block is provided with a second spring ferrule and a screw rod, the lower surface of the upper sliding block is adhered with an elastic rubber block, and the lower surface of the elastic rubber block is adhered with the lower sliding block. The invention utilizes the memory slow reset function of elastic rubber, and can reduce the reset noise of the device.
Description
Technical Field
The invention relates to building hardware fittings, in particular to a double-door adjustable door leaf limiter for a digital media classroom.
Background
The digital media classrooms and the training rooms mostly adopt large-space classrooms. For convenience of teachers and students in and out and standard requirements of fire protection, the installed door leaves are vertical hinged doors with double wings. In a classroom adopting the double vertical hinged door, for indoor silence, the door leaves are usually closed during the lesson, but if students enter and leave, the students tend to make loud sounds, so that the entering students are embarrassed, and the students and teachers in the room are influenced. If the door leaves are opened, indoor and outdoor sounds are not separated from each other, the teaching of indoor teachers and the quiet study of students are still not facilitated, and electric energy consumption is caused in the indoor space provided with the air conditioner. It is necessary to design a door leaf limiter with a mute function.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides an adjustable door leaf limiter for double doors in a digital media classroom.
The utility model provides a digital media classroom two adjustable door leaf limiters that open door, includes stopper main part, upper slider, big spring, elastic rubber piece, lower slider, first strong magnet steel and second strong magnet steel; the stopper is characterized in that the upper part and the left side and the right side of the stopper main body are respectively provided with a bump, and screw holes are formed in the bumps; a cavity is arranged in the limiter main body, an opening of the cavity is arranged below the limiter main body, a cavity through hole is formed 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 sliding block is provided with a second spring ferrule and a screw rod, the lower surface of the upper sliding block is adhered with an elastic rubber block, the lower surface of the elastic rubber block is adhered with a lower sliding block, the middle of the elastic rubber block is provided with a central through hole, and the middle of the lower sliding block is provided with an internal threaded hole; the circle centers of the second spring ferrule, the screw rod, the central through hole and the threaded hole are positioned on the same vertical line; the nut of the countersunk head screw is sleeved with a noise reduction rubber sleeve, and the countersunk head screw penetrates through the middle hole of the first strong magnetic steel and is screwed into the internal threaded hole to fix the first strong magnetic steel below the lower sliding block; the large spring on the screw rod sleeve passes through the cavity through hole from the lower part of the cavity and then is screwed into the nut for fixation; 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 stainless steel ball and the small spring are smaller than the round hole in diameter, and the stainless steel ball protrudes 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 under the limit of the blank holder, the inner rotary disc can rotate in the inner cavity of the tray by applying external force of rotation in the direction adjusting groove by a tool; the tray is fixed in a tray preset hole of the floor panel; the stopper body is fixed below the door leaf by a screw.
The length and width dimensions 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 elastic beads, the circle center of the second strong magnetic steel is intersected with the circle center connecting line of the inner rotating disc and the hinge rotating axis on the door leaf, and after the inner rotating disc rotates by the degree, the circle center of the second strong magnetic steel is still intersected with the circle center connecting line of the inner rotating disc and the axis of the hinge rotating shaft 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 that of the stainless steel marble, and the straight line connected with the center points of the two limiting holes intersects with the center line of the center of the circle of the tray.
The opposite surface magnetism of the first strong magnetic steel and the second strong magnetic steel is opposite.
The length dimension of the large spring is larger than or equal to the length dimension 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 method has the following beneficial effects:
1) The invention utilizes the memory slow reset function of the elastic rubber, and can reduce the reset noise of the device;
2) When the two magnets are attracted to each other, the noise-reducing 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 silencing effect can be achieved;
3) According to the invention, the distance between the noise reduction rubber sleeve and the magnet-philic block is regulated by using the screw cap, so that the optimal adsorption effect and mute effect are achieved when the door leaf is limited;
4) The limiting function of the door leaf can be opened or closed according to the requirement, and after the limiting function of the door leaf is closed, the opening and closing of the door leaf are not affected by the limiting device, as if the door leaf is not installed.
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 adsorbed together);
FIG. 2 is a schematic view of the construction of the present invention;
fig. 3 is a schematic view of the construction of the present invention (a state of being viewed from the bottom side);
fig. 4 is a partial cross-sectional view showing an internal construction of the present invention (a state in which a first strong magnetic steel and a second strong magnetic steel are adsorbed together);
FIG. 5 is a schematic view showing the stopper body of the present invention mounted on a door leaf, a tray mounted on a floor panel, and a first strong magnetic steel path passing through a second strong magnetic steel when the door leaf is opened or closed, both being adsorbed together;
FIG. 6 is a schematic view showing that the first strong magnetic steel and the second strong magnetic steel will not be adsorbed together when the door leaf is opened or closed after the inner turntable rotates 180 degrees;
in the figure: the stopper body 10, the bump 11, the screw hole 12, the cavity 13, the first spring collar 14, the cavity through hole 15, the upper slider 20, the second spring collar 21, the screw rod 22, the nut 23, the large spring 30, the elastic rubber block 40, the central through hole 41, the lower slider 50, the internal thread hole 51, the countersunk head screw 52, the noise reduction rubber sleeve 53, the first strong magnetic steel 60, the second strong magnetic steel 70, the inner rotating disc 71, the blank holder 72, the tray 73, the stainless steel ball 74, the small spring 75, the direction adjusting groove 76, the annular limiting groove 77, the tray inner cavity 78, the circular hole 79, the floor 80, the tray preset hole 81 and the door leaf 90.
Detailed Description
The invention is further illustrated by the following figures and examples: as shown in fig. 1 to 6, a digital media classroom double-door adjustable door leaf limiter 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 a lug 11 is respectively arranged above and at the left side and the right side of the stopper main body 10, and screw holes 12 are formed in the lug 11; a cavity 13 is arranged in the limiter main body 10, an opening of the cavity 13 is arranged below the limiter main body 10, a cavity through hole 15 is formed above the limiter main body 10, and the cavity through hole 15 is communicated with the cavity 13; the diameter of the cavity through hole 15 is larger than that of the screw rod 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 positioned on the same vertical line; the upper surface of the upper sliding block 20 is provided with a second spring ferrule 21 and a screw rod 22, the lower surface of the upper sliding block 20 is adhered with an elastic rubber block 40, the lower surface of the elastic rubber block 40 is adhered with a lower sliding block 50, the middle of the elastic rubber block 40 is provided with a central through hole 41, and the middle of the lower sliding block 50 is provided with an internal threaded hole 51; the center of the second spring ring 21, the screw rod 22, the center through hole 41 and the inner threaded hole 51 are positioned on the same vertical line; the nut 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 to fix the first strong magnetic steel 60 below the lower sliding block 50; the large spring 30 is sleeved on the screw rod 22, passes through the cavity through hole 15 from the lower part of the cavity 13 and is screwed into the screw cap 23 for fixation; 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 the diameter of the round hole 79, and the stainless steel ball 74 protrudes 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 force of rotation in the direction adjusting groove 76 by a tool under the limit of the blank holder 72; the tray 73 is fixed in a tray preset hole 81 of the floor panel 80; the stopper body 10 is screwed under the door leaf 90.
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 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 marble 74, the circle center of the second strong magnetic steel 70 is intersected with the circle center connecting line of the inner rotating disc 71 and the axis of the hinge rotating shaft on the door leaf 90, and after the inner rotating disc 71 is rotated 180 degrees, the circle center of the second strong magnetic steel 70 is still intersected with the circle center connecting line of the inner rotating disc 71 and the axis of the hinge rotating shaft on the door leaf 90.
Two limiting holes are formed in the inner wall of the inner cavity 78 of the tray, the size of each limiting hole is matched with that of the stainless steel ball 74, and the straight line connecting the center points of the two limiting holes intersects with the center line of the center of the circle of the tray 73.
The opposite surface magnetism of the first strong magnetic steel 60 and the second strong magnetic steel 70 is opposite.
After the stainless steel marble 74 falls into a limiting hole on the inner wall of the inner cavity 78 of the tray and is limited and fixed, the first strong magnetic steel 60 covers the second strong magnetic steel 70 and is adsorbed together to squeeze 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 rotate the inner turntable 71.
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, the noise-reducing 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 silencing effect can be achieved; according to the invention, the distance between the noise reduction rubber sleeve and the magnet-philic block is regulated by using the screw cap, so that the optimal adsorption effect and mute effect are achieved when the door leaf is limited; the limiting function of the door leaf can be opened or closed according to the requirement, and after the limiting function of the door leaf is closed, the opening and closing of the door leaf are not affected by the limiting device, as if the door leaf is not installed.
The above examples of the present invention are illustrative of exemplary embodiments of the present invention and are not intended to be limiting of the embodiments of the present invention. Obvious variations that result from the prompts of the embodiments of the invention are still within the scope of the claims of the invention.
Claims (8)
1. The utility model provides a digital media classroom two-door adjustable door leaf stopper, includes stopper main part (10), upper slider (20), big spring (30), elastic rubber piece (40), lower slider (50), first strong magnet steel (60) and second strong magnet steel (70); the stopper is characterized in that a lug (11) is respectively arranged above and at the left side and the right side of the stopper main body (10), and screw holes (12) are formed in the lug (11); a cavity (13) is arranged in the limiter main body (10), an opening of the cavity (13) is arranged below the limiter main body (10), a cavity through hole (15) is formed above the limiter 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); the top of the cavity (13) is provided with a first spring ferrule (14); 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; the upper surface of the upper sliding block (20) is provided with a second spring ferrule (21) and a screw rod (22), the lower surface of the upper sliding block (20) is adhered with an elastic rubber block (40), the lower surface of the elastic rubber block (40) is adhered with a lower sliding block (50), the middle of the elastic rubber block (40) is provided with a central through hole (41), and the middle of the lower sliding block (50) is provided with an internal threaded hole (51); the circle centers of the second spring ferrule (21), the screw rod (22), the central through hole (41) and the internal threaded hole (51) are positioned on the same vertical line; the nail cap of the countersunk head screw (52) is sleeved with a noise reduction rubber sleeve (53); the opposite surface magnetism of the first strong magnetic steel (60) and the second strong magnetic steel (70) is opposite; 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), so that the first strong magnetic steel (60) is fixed below the lower slider (50); the 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 fixation; the diameter of the second strong magnetic steel (70) is smaller than the radius of the inner rotating disc (71); the second strong magnetic steel (70) is fixed on one side of a direction adjusting groove (76) of the inner rotary table (71), the direction adjusting groove (76) is arranged in the middle of the top surface of the inner rotary table (71), an annular limiting groove (77) is arranged at the upper end of the outer edge, a round hole (79) is formed in the side surface of the inner rotary table (71), a small spring (75) and a stainless steel marble (74) are arranged in the round hole (79), the diameters of the stainless steel marble (74) and the small spring (75) are smaller than the diameter of the round hole (79), and the stainless steel marble (74) protrudes out of the round hole (79) under the action of the small spring (75); the inner rotary disc (71) is placed in the inner cavity (78) of the tray, and the inner rotary disc (71) can rotate in the inner cavity (78) of the tray by applying external force of rotation in the direction adjusting groove (76) by a tool under the limit of the blank holder (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 a screw; stainless steel ball (74) falls into the spacing hole on the inner wall of the tray inner cavity (78) and is spacing fixed, the inner turntable (71) is rotated 180 degrees, and the stainless steel ball (74) on the inner turntable (71) falls into another spacing hole on the inner wall of the tray inner cavity (78) and is spacing fixed again.
2. The adjustable door leaf limiter according to claim 1, wherein after stainless steel balls (74) fall into limiting holes on the inner wall of the inner cavity (78) of the tray to be limited and fixed, the first strong magnetic steel (60) covers the second strong magnetic steel (70) and is adsorbed together to squeeze the noise reduction rubber sleeve (53) to increase friction force between the two, 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) can not drive the inner turntable (71) to rotate.
3. The adjustable door leaf limiter according to claim 1, wherein 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 smaller than the length and width dimensions 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) are slidable up and down in the cavity (13).
4. Door leaf limiter according to claim 1, characterized in that the elastic rubber block (40) has a return function.
5. The adjustable door leaf limiter according to claim 1, wherein two limiting holes are arranged on the inner wall of the inner cavity (78) of the tray, the size of each limiting hole is matched with that of 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 center of the circle of the tray (73).
6. The digital media classroom double door adjustable door leaf limiter of claim 1 wherein the length dimension of the large spring (30) is greater than or equal to the length dimension of the turnbuckle (22).
7. An adjustable door leaf limiter according to claim 1, characterized in that the length dimension of the small spring (75) is larger than the sum of the depth of the circular hole (79) plus the diameter dimension of the stainless steel ball (74).
8. The digital media classroom double door adjustable door leaf limiter of claim 1 wherein the first strong magnetic steel (60) is covered on the second strong magnetic steel (70), and when the distance between the two is less than 3mm, the force of the mutual attraction between the first strong magnetic steel (60) and the second strong magnetic steel (70) can pull the elastic rubber block (40) to deform.
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 CN114790860A (en) | 2022-07-26 |
| CN114790860B true CN114790860B (en) | 2024-01-30 |
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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 |
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| CN (1) | CN114790860B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114790859B (en) * | 2021-12-15 | 2023-06-23 | 重庆工业职业技术学院 | Installation and use method of classroom double-door fan limiter |
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| 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 |
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