CN114790859B - Installation and use method of classroom double-door fan limiter - Google Patents
Installation and use method of classroom double-door fan limiter Download PDFInfo
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- CN114790859B CN114790859B CN202111533309.3A CN202111533309A CN114790859B CN 114790859 B CN114790859 B CN 114790859B CN 202111533309 A CN202111533309 A CN 202111533309A CN 114790859 B CN114790859 B CN 114790859B
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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
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- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Closing And Opening Devices For Wings, And Checks For Wings (AREA)
- Wing Frames And Configurations (AREA)
Abstract
The mounting and using method of the classroom double door fan limiter comprises the following steps of: step one, preparing: confirming the structure of the door leaf, and knowing whether the door leaf is wooden or iron sheet; step two, installing a limiter main body on the door leaf: fixing the limiter main body on the door leaf to ensure that the limiter main body is not contacted with the ground and the door leaf beside; step three, mounting a tray on the ground: drilling a tray preset hole in the ground plate by using a special tool, injecting AB glue into the tray preset hole, and fixing the tray in the tray preset hole; fourth, adjusting the distance between the first strong magnetic steel and the second strong magnetic steel; step five, closing or re-opening the limiting function of the limiter: rotating the inner rotary table by 180 degrees, and closing the limiting function of the limiter; and rotating the inner rotating disc for 180 degrees again, and opening the limiting function of the limiter. The user can close or open the limit function of the limiter as required.
Description
Technical Field
The invention relates to the field of building decoration, in particular to a mounting and using method of a classroom double door leaf limiter.
Background
The teachers and students in the classroom do not want to open the classroom door greatly, because the past people often can scatter the attention of the teachers and students in the classroom, and the classroom door is opened greatly, so that the teaching efficiency of the teachers and students in the classroom can be reduced; the classroom and the training room mostly adopt a large-space classroom, and the large-space classroom is provided with a two-leaf vertical hinged door for the convenience of teachers and students and the standard requirements of fire protection. 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
The invention aims to provide a mounting and using method of a classroom double-door fan limiter, which aims to realize the purposes of limiting and silencing the classroom double-door fan by virtual masking and comprises the following technical scheme that the limiter comprises a limiter main 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 upper part and the left side and the right side of the limiter 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, and a cavity through hole is formed above the limiter main body; 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 upper sliding block is provided with a second spring ferrule and a screw rod, the lower part of the upper sliding block is adhered with an elastic rubber block, and the lower part of the elastic rubber block is adhered with a lower sliding block; the countersunk head screw is used for fixing the first strong magnetic steel below the lower sliding block; the big spring on the screw rod sleeve passes through the cavity through hole from the lower part of the cavity and is screwed into the nut; the second strong magnetic steel is fixed on the inner rotary table, the opposite surface magnetism of the first strong magnetic steel and the second strong magnetic steel is opposite, the inner rotary table is placed in the inner cavity of the tray, and the inner rotary table can rotate in the inner cavity of the tray by applying external force; the method is characterized in that the steps of installing the door leaf virtual masking device on the double door leaf for use comprise the following steps:
step one, preparing:
1) Confirming the structure of the door leaf, and knowing whether the door leaf is wooden or iron sheet;
2) Confirming whether the ground under the door leaf is a ceramic tile or a wood floor;
3) The screw cap is rotated to adjust the bottom surface of the first strong magnetic steel to be flush with the bottom surface opening of the cavity;
4) A thin double-sided adhesive tape is attached to the surface of the limiter body, which is flush with the convex block;
step two, mounting a limiter main body (taking a wooden door leaf as an example) on the door leaf:
1) Closing the door leaf;
2) The first strong magnetic steel faces downwards, the limiter main body is leaned against the indoor vertical face of the door leaf and is far away from the lower part of one side of the hinge, and the distance between the bottom surface of the first strong magnetic steel and the ground is about 5 mm;
3) Ensuring that the long side of the limiter main body is in a vertical state with the ground;
4) Attaching the limiter body to the door leaf, and opening and closing the door leaf to ensure that the limiter body is not contacted with the ground and the door leaf beside the ground;
5) A self-tapping screw with the length of about mm is adopted to fix the limiter main body on the door leaf;
step three, mounting a tray on the ground:
1) Opening and closing the door leaf, taking the central axis of the noise reduction rubber sleeve below the limiter main body as a track, and making an arc mark line on the ground by using a pencil;
2) Determining the position of a virtual mask after a door leaf is opened, fixing the door leaf, connecting the central axis of a hinge rotating shaft of the door leaf with the central axis of a noise reduction rubber sleeve by using a pencil, marking a straight line on the ground, and intersecting the straight line with an arc marking line;
3) Rotating the inner rotary plate in the tray towards any direction, so that the stainless steel elastic beads enter a limiting hole formed in the inner wall of the inner cavity of the tray;
4) Placing the tray on the ground, and enabling a vertical line of the center point of the second strong magnetic steel to be positioned on the arc mark line; the connecting line between the center point of the second strong magnetic steel and the center point of the inner rotating disc is parallel to the straight line mark on the ground, and the two lines are positioned on the same vertical line;
5) Making a circular mark along the junction of the tray and the ground by using a pencil;
6) Drilling a tray preset hole in the ground plate by using a special tool, wherein the diameter size of the tray preset hole is larger than that of the tray and smaller than the outer diameter size of the blank holder; the size of the depth of the preset hole of the tray is larger than or equal to the size of the thickness of the tray;
7) Injecting AB glue into the preset holes of the tray, placing the tray in the preset holes of the tray, and enabling the circle center of the second strong magnetic steel to be intersected with the connecting extension line of the circle center of the inner rotating disc and the central extension line of the hinge rotating shaft on the door leaf;
8) Ensuring that the edge of the blank holder on the tray is tightly contacted with the floor board;
fourth, adjusting the distance between the first strong magnetic steel and the second strong magnetic steel:
1) Moving the door leaf to enable the first strong magnetic steel to be located above the second strong magnetic steel, adjusting the screw cap to enable the height of the first strong magnetic steel to be lowered, enabling the elastic rubber block to be deformed by the force of mutual attraction of the first strong magnetic steel and the second strong magnetic steel until the first strong magnetic steel and the second strong magnetic steel are adsorbed together;
2) Moving the door leaf again to separate the first strong magnetic steel from the second strong magnetic steel, and checking and ensuring that the elastic rubber block can drive the first strong magnetic steel to move upwards by about 2mm when reset;
3) And the door leaf is moved again, so that the first strong magnetic steel is positioned above the second strong magnetic steel, the force of mutual attraction between the first strong magnetic steel and the second strong magnetic steel is ensured, the elastic rubber block can be pulled to deform, and the first strong magnetic steel and the second strong magnetic steel can be adsorbed together.
Step five, closing or re-opening the limiting function of the limiter:
limiting function of closing limiter
1) Inserting a straight screwdriver into the direction adjusting groove, rotating the inner turntable by 180 degrees, and enabling stainless steel elastic beads on the inner turntable to fall into limiting holes on the inner wall of the inner cavity of the tray to be limited and fixed;
2) Opening and closing the door leaf, wherein the moving track of the first strong magnetic steel is not intersected with the position of the second strong magnetic steel, the first strong magnetic steel is not contacted with any part of the ground, and the limiting function of the limiter is closed;
limiting function of opening limiter
1) Closing the door leaf;
2) The inner rotary table is rotated 180 degrees by inserting a straight screwdriver into the direction adjusting groove, and the limiting function of the limiter is opened.
And installing a limiter for a second door of the double door leaf and setting the limiting function of the limiter, and repeating the second step to the fifth step.
According to the first preferred scheme, as the preferred scheme of the basic scheme, the length and width dimensions of the upper sliding block, the elastic rubber block, the lower sliding block and the first strong magnetic steel are smaller than those of the cavity, the upper sliding block, the elastic rubber block and the lower sliding block can slide up and down in the cavity, and the first strong magnetic steel can be attracted to move downwards when passing over the second strong magnetic steel.
In a second preferred embodiment, the thickness dimension of the beading strip is not greater than 1.2mm, so that the height difference between the tray and the ground is reduced as much as possible.
In the third preferred scheme, as a preferred scheme of the second preferred scheme, 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, the straight line connected with the center point of each limiting hole intersects with the center line of the center of the tray, and the stainless steel marble can sink into the limiting holes to be limited and fixed when the inner turntable rotates for 180 degrees.
In the fourth preferred embodiment, as a preferred embodiment of the third preferred embodiment, the length dimension of the large spring is greater than or equal to the length dimension of the screw rod, so that the large spring is ensured not to be in contact with the screw rod.
In a fifth preferred aspect, as a preferred aspect of the fourth preferred aspect, the thickness dimension of the tray is equal to or smaller than the thickness dimension of the floor board, so that the whole tray after being mounted and fixed is ensured not to be higher than the surface of the floor board except the binder strip.
The technical scheme has the beneficial effects that the door leaves of the flat double-leaf door can be well subjected to virtual masking fixation, and the flexible glue and the elastic rubber are well utilized to realize mute limit, so that a user can close or open the limit function of the limit device according to the needs.
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 diagram 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.
Detailed Description
The following is a further detailed description of the embodiments:
reference numerals in the drawings of the specification include: 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.
The mounting and using method of the limiter of the double-door leaf of the 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, a first strong magnetic steel 60 and a second strong magnetic steel 70; the upper part and the left side and the right side of the limiter main body 10 are respectively provided with a lug 11, and screw holes 12 are formed in the lug 11; a cavity 13 is arranged in the limiter body 10, an opening of the cavity 13 is arranged below the limiter body 10, and a cavity through hole 15 is formed above the limiter body 10; 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 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, and the lower surface of the elastic rubber block 40 is adhered with a lower sliding block 50; countersunk head screw 52 fixes first strong magnetic steel 60 below lower slider 50; the screw rod 22 is sleeved with a large spring 30, and is screwed into the screw cap 23 from the lower part of the cavity 13 through the cavity through hole 15; the second strong magnetic steel 70 is fixed on the inner rotary table 71, the surface magnetism of the first strong magnetic steel 60 opposite to that of the second strong magnetic steel 70 is opposite, the inner rotary table 71 is placed in the inner tray cavity 78, and the inner rotary table 71 can rotate in the inner tray cavity 78 by applying external force; the method is characterized in that the steps of installing the door leaf virtual masking device on the double door leaf for use comprise the following steps:
step one, preparing:
1) Confirming the structure of the door leaf, it should be clear whether the door leaf 90 is wood or iron;
2) Confirm whether the ground 80 under the door leaf 90 is a tile or a wooden floor;
3) The screw cap 23 is turned to adjust the bottom surface of the first strong magnetic steel 60 to be flush with the bottom surface opening of the cavity 13;
4) A thin double-sided tape is stuck on the surface of the limiter body 10 flush with the convex block 11;
step two, mounting a limiter main body (taking a wooden door leaf as an example) on the door leaf:
1) Closing the door leaf 90;
2) The first strong magnetic steel 60 faces downwards, the limiter main body 10 is leaned against the indoor vertical face of the door leaf 90 and is far away from the lower side of one side of the hinge, and the distance between the bottom surface of the first strong magnetic steel 60 and the ground is about 5 mm;
3) Ensuring that the long side of the stopper body 10 is in a vertical state with the ground;
4) Attaching the limiter body 10 to a door leaf, and opening and closing the door leaf to ensure that the limiter body 10 is not contacted with the ground and the door leaf beside;
5) The limiter body 10 is fixed on the door leaf 90 by self-tapping screws with the length of about 20 mm;
step three, mounting a tray on the ground:
1) The door leaf 90 is opened and closed, the central axis of the noise reduction rubber sleeve 53 below the limiter main body 10 is taken as a track, and a pencil is used for making arc mark lines on the ground;
2) Determining the position of a virtual mask after the door leaf 90 is opened, fixing the door leaf, connecting the central axis of the noise reduction rubber sleeve 53 with the central axis of a hinge rotating shaft of the door leaf by using a pencil, marking the ground with a straight line, and intersecting the straight line with an arc marking line;
3) Rotating the inner rotary plate 71 in the tray 73 in any direction to enable the stainless steel balls 74 to enter into limiting holes arranged on the inner wall of the tray inner cavity 78;
4) Placing the tray 73 on the ground so that the vertical line of the center point of the second strong magnetic steel 70 is positioned on the arc mark line; the connecting line between the center point of the second strong magnetic steel 70 and the center point of the inner rotating disc 71 is parallel to the straight line mark on the ground, and the two lines are positioned on the same vertical line;
5) Marking a circular mark with a pencil along the junction of the tray 73 and the ground;
6) Drilling a tray preset hole 81 on the ground plate by using a special tool, wherein the diameter size of the tray preset hole 81 is larger than the diameter size of the tray 73 and smaller than the outer diameter size of the blank holder 72; the size of the depth of the tray preset hole 81 is greater than or equal to the size of the thickness of the tray 73;
7) Injecting AB glue into the tray preset hole 81, placing the tray 73 into the tray preset hole 81, and enabling the connecting extension line of the circle center of the second strong magnetic steel 70 and the circle center of the inner rotating disc 71 to intersect with the central extension line of the hinge rotating shaft on the door leaf 90;
8) Ensuring that the edge of the beading strip 72 on the tray 73 is in close contact with the floor board;
fourth, adjusting the distance between the first strong magnetic steel and the second strong magnetic steel:
1) The door leaf 90 is moved to enable the first strong magnetic steel 60 to be located above the second strong magnetic steel 70, the nut 23 is adjusted to enable the height of the first strong magnetic steel 60 to be lowered, and the elastic rubber block 40 is deformed by the force of mutual attraction of the first strong magnetic steel 60 and the second strong magnetic steel 70 until the first strong magnetic steel 60 and the second strong magnetic steel 70 are adsorbed together;
2) The door leaf 90 is moved again to separate the first strong magnetic steel 60 from the second strong magnetic steel 70, and the first strong magnetic steel 60 can be driven to move upwards by about 2mm when the elastic rubber block 40 is reset;
3) The door leaf 90 is moved again, so that the first strong magnetic steel 60 is positioned above the second strong magnetic steel 70, the force of mutual attraction between the first strong magnetic steel 60 and the second strong magnetic steel 70 is ensured, the elastic rubber block 40 can be pulled to deform, and the first strong magnetic steel 60 and the second strong magnetic steel 70 can be adsorbed together;
step five, closing or re-opening the limiting function of the limiter:
limiting function of closing limiter
1) A straight screwdriver is inserted into the direction adjusting groove 76, and the inner rotary disc 71 is rotated 180 degrees, so that stainless steel balls 74 on the inner rotary disc 71 fall into limit holes on the inner wall of the inner cavity 78 of the tray to be limited and fixed;
2) The door leaf 90 is opened and closed, the moving track of the first strong magnetic steel 60 is not intersected with the position where the second strong magnetic steel 70 is located, the first strong magnetic steel 60 is not contacted with any part of the ground, and the limiting function of the limiter is closed;
limiting function of opening limiter
1) Closing the door leaf 90;
2) The inner rotary plate 71 is rotated 180 degrees by inserting a straight screwdriver into the direction adjusting groove 76, and the limiting function of the limiter is opened;
and installing a limiter for a second door of the double door leaf and setting the limiting function of the limiter, and repeating the second step to the fifth step.
The foregoing is merely exemplary of the present invention, and specific structures and features commonly known in the art will not be described in detail herein. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present invention, and these should also be considered as the scope of the present invention, which does not affect the effect of the implementation of the present invention and the utility of the patent. The protection scope of the present application shall be subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (7)
1. The mounting and using method of the classroom double-door fan limiter 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), a first strong magnetic steel (60) and a second strong magnetic steel (70); the upper part and the left side and the right side of the limiter main body (10) are respectively provided with a lug (11), and screw holes (12) are formed in the lugs (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), and a cavity through hole (15) is formed above the limiter main body (10); 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 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), and the lower surface of the elastic rubber block (40) is adhered with a lower sliding block (50); the countersunk head screw (52) is used for fixing the first strong magnetic steel (60) below the lower sliding block (50); the screw rod (22) is sleeved with a large spring (30) and is screwed into the screw cap (23) from the lower part of the cavity (13) through the cavity through hole (15); the second strong magnetic steel (70) is fixed on the inner rotary table (71), the surface magnetism of the first strong magnetic steel (60) opposite to that of the second strong magnetic steel (70) is opposite, the inner rotary table (71) is placed in the inner cavity (78) of the tray, and the inner rotary table (71) can rotate in the inner cavity (78) of the tray by applying external force; the method is characterized in that the steps of installing the door leaf virtual masking device on the double door leaf for use comprise the following steps:
step one, preparing:
1) Confirming the structure of the door leaf (90), and clearly judging whether the door leaf (90) is made of wood or iron;
2) Confirming whether the ground (80) under the door leaf is a ceramic tile or a wood floor;
3) The screw cap (23) is rotated to adjust the bottom surface of the first strong magnetic steel (60) to be flush with the bottom surface opening of the cavity (13);
4) A thin double-sided adhesive tape is attached to the surface of the limiter main body (10) flush with the convex block (11);
step two, installing a limiter main body on the door leaf:
1) Closing the door leaf (90);
2) The first strong magnetic steel (60) faces downwards, the limiter main body (10) is leaned against the indoor vertical face of the door leaf (90) and is far away from the lower part of one side of the hinge, and the distance between the bottom surface of the first strong magnetic steel (60) and the ground is about 5 mm;
3) Ensuring that the long edge of the limiter main body (10) is in a vertical state with the ground;
4) Attaching the limiter body (10) to a door leaf, and opening and closing the door leaf to ensure that the limiter body (10) is not contacted with the ground and the door leaf beside;
5) A self-tapping screw with the length of about 20mm is adopted to fix the limiter main body (10) on the door leaf (90);
step three, mounting a tray on the ground:
1) The door leaf (90) is opened and closed, the central axis of the noise reduction rubber sleeve (53) below the limiter main body (10) is taken as a track, and a pencil is used for making arc mark lines on the ground;
2) Determining the position of a virtual mask after a door leaf (90) is opened, fixing the door leaf, connecting the central axis of a hinge rotating shaft of the door leaf with the central axis of a noise reduction rubber sleeve (53) by using a pencil, marking a straight line on the ground, and intersecting the straight line with an arc marking line;
3) Rotating an inner rotating disc (71) in a tray (73) towards any direction, so that stainless steel balls (74) enter limit holes formed in the inner wall of an inner cavity (78) of the tray;
4) Placing a tray (73) on the ground, so that a vertical line of the center point of the second strong magnetic steel (70) is positioned on an arc mark line; the connecting line between the center point of the second strong magnetic steel (70) and the center point of the inner rotating disc (71) is parallel to the straight line mark on the ground, and the two lines are positioned on the same vertical line;
5) Marking a circular mark with a pencil along the junction of the tray (73) and the ground;
6) Drilling a tray preset hole (81) in the ground plate by using a special tool, wherein the diameter size of the tray preset hole (81) is larger than the diameter size of the tray (73) and smaller than the outer diameter size of the blank holder (72); the size of the depth of the tray preset hole (81) is larger than or equal to the size of the thickness of the tray (73);
7) AB glue is injected into a tray preset hole (81), a tray (73) is placed in the tray preset hole (81), the circle center of the second strong magnetic steel (70) is connected with the connecting extension line of the circle center of the inner rotating disc (71), and the connecting extension line intersects with the hinge rotation shaft center extension line on the door leaf (90);
8) Ensuring that the edge of the blank holder (72) on the tray (73) is in close contact with the floor board;
fourth, adjusting the distance between the first strong magnetic steel and the second strong magnetic steel:
1) Moving the door leaf (90) to enable the first strong magnetic steel (60) to be located above the second strong magnetic steel (70), adjusting the screw cap (23) to enable the height of the first strong magnetic steel (60) to be lowered, enabling the force of mutual attraction of the first strong magnetic steel (60) and the second strong magnetic steel (70) to enable the elastic rubber block (40) to deform until the first strong magnetic steel (60) and the second strong magnetic steel (70) are adsorbed together;
2) The door leaf (90) is moved again, so that the first strong magnetic steel (60) is separated from the second strong magnetic steel (70), and the first strong magnetic steel (60) can be driven to move upwards by about 2mm when the elastic rubber block (40) is reset;
3) The door leaf (90) is moved again, so that the first strong magnetic steel (60) is positioned above the second strong magnetic steel (70), the force of mutual attraction between the first strong magnetic steel (60) and the second strong magnetic steel (70) is ensured, the elastic rubber block (40) can be pulled to deform, and the first strong magnetic steel (60) and the second strong magnetic steel (70) can be adsorbed together;
step five, closing or re-opening the limiting function of the limiter:
1) Limiting function of closing limiter
The inner rotary table (71) is rotated 180 degrees by a straight screwdriver inserted into the direction adjusting groove (76), so that stainless steel elastic beads (74) on the inner rotary table (71) fall into limit holes on the inner wall of the inner cavity (78) of the tray to be limited and fixed;
2) The door leaf (90) is opened and closed, the moving track of the first strong magnetic steel (60) is not intersected with the position of the second strong magnetic steel (70), the first strong magnetic steel (60) is not contacted with any part on the ground, and the limiting function of the limiter is closed;
limiting function of opening limiter
1) Closing the door leaf (90);
2) The inner rotary table (71) is rotated 180 degrees by inserting a straight screwdriver into the direction adjusting groove (76), and the limiting function of the limiter is opened;
and installing a limiter for a second door of the double door leaf and setting the limiting function of the limiter, and repeating the second step to the fifth step.
2. The mounting and using method of the classroom double door fan 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 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).
3. The method of installing and using a classroom double door sash stop as defined in claim 1, wherein the thickness dimension of the beading strip (72) is no greater than 1.2mm.
4. The method of installing and using a classroom double door leaf limiter of claim 1 wherein said elastomeric rubber block (40) has a reset function.
5. The mounting and using method of the classroom double door fan limiter according to claim 1, wherein 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 a 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).
6. The method of installing and using a classroom double door sash limiter of 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).
7. The mounting and use method of the classroom double door sash limiter according to claim 1, wherein the thickness dimension of the tray (73) is equal to or smaller than the thickness dimension of the floor board.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111533309.3A CN114790859B (en) | 2021-12-15 | 2021-12-15 | Installation and use method of classroom double-door fan limiter |
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| CN202111533309.3A CN114790859B (en) | 2021-12-15 | 2021-12-15 | Installation and use method of classroom double-door fan limiter |
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| CN114790859A CN114790859A (en) | 2022-07-26 |
| CN114790859B true CN114790859B (en) | 2023-06-23 |
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| CN114790860B (en) * | 2021-12-15 | 2024-01-30 | 重庆工业职业技术学院 | Adjustable door leaf limiter of digital media classroom double door |
Citations (3)
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| CN114790859A (en) | 2022-07-26 |
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