CN109252794B - High-altitude folding door with manual chain switch - Google Patents
High-altitude folding door with manual chain switch Download PDFInfo
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- CN109252794B CN109252794B CN201710573901.3A CN201710573901A CN109252794B CN 109252794 B CN109252794 B CN 109252794B CN 201710573901 A CN201710573901 A CN 201710573901A CN 109252794 B CN109252794 B CN 109252794B
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- door
- door leaf
- gear
- manual chain
- folding door
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 16
- 239000010959 steel Substances 0.000 claims abstract description 16
- 230000005540 biological transmission Effects 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims description 8
- 238000005246 galvanizing Methods 0.000 claims description 5
- 239000010960 cold rolled steel Substances 0.000 claims description 3
- 239000011162 core material Substances 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 230000001012 protector Effects 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/32—Arrangements of wings characterised by the manner of movement; Arrangements of movable wings in openings; Features of wings or frames relating solely to the manner of movement of the wing
- E06B3/48—Wings connected at their edges, e.g. foldable wings
- E06B3/481—Wings foldable in a zig-zag manner or bi-fold wings
-
- 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
- E05F11/00—Man-operated mechanisms for operating wings, including those which also operate the fastening
- E05F11/02—Man-operated mechanisms for operating wings, including those which also operate the fastening for wings in general, e.g. fanlights
- E05F11/04—Man-operated mechanisms for operating wings, including those which also operate the fastening for wings in general, e.g. fanlights with cords, chains or cables
-
- 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
- E05F11/00—Man-operated mechanisms for operating wings, including those which also operate the fastening
- E05F11/54—Man-operated mechanisms for operating wings, including those which also operate the fastening for doors
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/70—Door leaves
- E06B3/72—Door leaves consisting of frame and panels, e.g. of raised panel type
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/70—Door leaves
- E06B3/88—Edge-protecting devices for door leaves
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B7/00—Special arrangements or measures in connection with doors or windows
- E06B7/16—Sealing arrangements on wings or parts co-operating with the wings
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
- E05Y2900/11—Application of doors, windows, wings or fittings thereof for buildings or parts thereof for industrial buildings
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/10—Application of doors, windows, wings or fittings thereof for buildings or parts thereof
- E05Y2900/13—Type of wing
- E05Y2900/132—Doors
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Extensible Doors And Revolving Doors (AREA)
- Power-Operated Mechanisms For Wings (AREA)
Abstract
The utility model provides a manual chain switch's high altitude folding door, includes door frame, track, door leaf, transmission system, its characterized in that: the door frame is a vertical pipe on two sides of the folding door, the tracks (5) are two tracks in the same horizontal position and are respectively arranged on two sides of a steel rail (9) of the monorail crane, the door leaf is provided with four rectangular door leaves with the same size and the height larger than or equal to 5000mm, the rectangular door leaves are divided into two side door leaves and two middle door leaves, and the transmission system comprises a manual chain, a connecting rod and a gear box. The manual chain-driven overhead folding door device has the advantages of simple structure, excellent opening and closing performance of the manual chain-operated folding door, flexible and convenient use, safety, reliability, convenient manufacture, short construction period, low manufacturing cost and engineering cost reduction.
Description
Technical Field
The invention relates to a folding door, in particular to a high-altitude folding door opened and closed by a manual chain.
Background
The folding door has the characteristics of space saving, flexible and convenient use and the like, is widely applied to industrial and civil buildings, is generally positioned on the ground, and does not have large holes on door leaves.
However, in practical engineering projects, an industrial heavy folding door is installed at the position 1.5m away from the ground at the bottom of a door opening, and a steel rail with a monorail crane needs to penetrate through the upper part of a door leaf of the folding door. Because the field power supply of engineering projects cannot be guaranteed, the folding door needs to be driven in a manual mode and an electric mode. It is not possible to drive the folding door in a direct manual manner because the torque required to open and close the door is too great.
The known conventional folding doors thus suffer from the inconveniences and problems described above.
Disclosure of Invention
The invention aims to provide a simple and labor-saving high-altitude folding door opened and closed by a manual chain.
In order to achieve the purpose, the technical solution of the invention is as follows:
the utility model provides a high altitude folding door of manual chain switch, single track loop wheel machine rail vertically pass through the folding door in the middle of the folding door leaf top, includes door frame, track, door leaf, transmission system, its characterized in that:
the door frame is a vertical pipe on two sides of the folding door, the bottom end of the vertical pipe is fixedly connected with a purline at the top end of a wall panel below the vertical pipe, and the distance from the top end of the wall panel to the ground is more than or equal to 1400 mm;
the tracks are two tracks at the same horizontal position and are respectively arranged at two sides of a steel rail of the monorail crane, the tracks are hot galvanizing cold-formed steel, the section of the hot galvanizing cold-formed steel is C-shaped, and the tracks are fixedly connected with purlins above the hot galvanizing cold-formed steel; one end of the purline is fixedly connected with the top of the vertical pipe of the door frame, and the other end of the purline is fixedly connected with the bottom of the gear box arranged above the purline; the gear box is positioned above the steel rail of the monorail crane;
the door leaf is provided with four rectangular door leaves with the same size and the height of more than or equal to 5000mm, and the rectangular door leaves are divided into two side door leaves and two middle door leaves; the upper part of the middle door leaf is provided with a sliding hanging ring, and the sliding part of the hanging ring is positioned in a C-shaped steel groove of the track, so that the middle door leaf is movably suspended below the track; the frame on one side of the side door leaf is connected with the middle door leaf through a hinge, the other side of the side door leaf is connected with the vertical pipe of the door frame through a hinge, the upper end and the lower end of the stile of the side door leaf are respectively provided with an upper rotating shaft and a lower rotating shaft, the rotating shafts are connected with the upper rotating shaft seat and the lower rotating shaft seat of the door frame on the two sides of the door opening, the stile of the side door leaf rotates around the rotating shafts, and meanwhile, the middle door leaf is driven to;
the transmission system comprises a manual chain, a connecting rod and a gear box, wherein: the 1 st gear is arranged on the outer side of the door frame vertical pipe, and the 2 nd gear is arranged in the middle of the gear box; the 1 st gear and the 2 nd gear transmit motion through a transmission chain, the transmission chain and a manual chain transmit motion through a rotating shaft of the 1 st gear, and the upper end of the 2 nd gear is meshed and connected with the 1 st straight gear; the lower end of the 2 nd straight gear is meshed with the 2 nd straight gear, and the 1 st straight gear and the 2 nd straight gear are arranged in parallel; one end of the 1 st connecting rod is hinged with the 1 st straight gear and the 2 nd straight gear, the other end of the 1 st connecting rod is hinged with one end of the 2 nd connecting rod, and the other end of the 2 nd connecting rod is connected with the door lifter rotating shaft seat; the upper and lower stiles of the side door leaf are respectively connected with the upper and lower stile rotating shaft seats.
The high-altitude folding door with the manual chain switch can be further realized by adopting the following technical measures.
The space between the frames at the two sides of the door frame is 3400 mm.
In the overhead folding door with the manual chain switch, the vertical pipe is made of 80 × 4.5mm square pipes.
According to the high-altitude folding door with the manual chain switch, the door leaf is a 1.0mm hot-galvanized metal sandwich board taking polyurethane as a core material, a 1.0mm cold-rolled steel edge is adopted, the edge is riveted with the sandwich board, special triangular protective corners are fixed at four corners of the door leaf through screws, and the thickness of the door leaf is 75 mm.
In the high-altitude folding door with the manual chain switch, the contact part between the door leaf and the door frame of the folding door and the sealing strips are adopted between the door frame and the door opening to realize sealing.
The above-mentioned overhead folding door is opened and closed by a manual chain, wherein the length of the manual chain is 7 m.
In the high-altitude folding door opened and closed by the manual chain, the lengths of the 1 st spur gear and the 2 nd spur gear are respectively more than or equal to 855 mm.
After the technical scheme is adopted, the high-altitude folding door with the manual chain switch has the following advantages:
1. the folding door device has simple structure and convenient manufacture;
2. the folding door has safe and reliable engineering quality, excellent opening and closing performance of the folding door operated by a manual chain, and flexible and convenient use;
3. simple manufacture, short construction period, low cost and low engineering cost.
Drawings
FIG. 1 is a schematic structural diagram of an overhead folding door according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1;
FIG. 4 is a schematic view of a folding door drive according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a gear box body of a folding door according to an embodiment of the invention.
In the figure: the novel door leaf comprises a ground surface, 2 wall panels, 3 hinges, 4 door leaf corner outer wrapping edges, 5 rails, 6 sliding lifting rings, 7 gear boxes, 8 nd gears, 9 single-rail crane steel rails, 10 st connecting rods, 11 transmission chains, 12 purlins, 13 nd connecting rods, 2 nd connecting rods, 14 door lifters, 15 th gears, 16 manual chains, 17 side door leaves, 18 middle door leaves, 19 th spur gears, 20 positioning devices and 21 nd 2 th spur gears.
Detailed Description
The present invention will be further described with reference to the following examples and the accompanying drawings.
Example 1
According to the high-altitude folding door with the manual chain switch, the steel rail 9 of the monorail crane longitudinally penetrates through the folding door in the middle of the top of the door leaf of the folding door, the opening on the middle door leaf is 400mm wide and 450mm high, and the high-altitude folding door comprises a door frame, a track, the door leaf and a transmission system.
Referring to fig. 1 to 3, fig. 1 is a schematic structural view of an overhead folding door according to an embodiment of the present invention, fig. 2 is a sectional view of a-a in fig. 1, and fig. 3 is a sectional view of B-B in fig. 1. As shown in the figure, the door frame is a vertical pipe on two sides of the folding door, the bottom end of the vertical pipe is fixedly connected with a purline on the top end of the wall panel 2 below, and the distance from the top end of the wall panel to the ground is 1400 mm.
The tracks 5 are two independent tracks which are respectively and fixedly connected to two sides of a steel rail 9 of the monorail crane, the tracks are fixedly connected with purlins 12 above the tracks, one ends of the purlins are fixedly connected with the top of the vertical pipe of the doorframe, and the other ends of the purlins are fixedly connected with the bottom of a gear box 7 arranged above the purlins; the gear box is positioned above the steel rail of the monorail crane. The distance between the frames at the two sides of the door frame is 3400 mm. The material of riser is 80 by 4.5mm square tube. The contact position of the door leaf and the door frame and the position between the door frame and the door opening are sealed by adopting sealing strips. The rail plays the role of suspending the door leaf weight and sliding guidance in the whole system.
The door leaf is provided with four rectangular door leaves with the same length of 5113mm and size, and the rectangular door leaves are divided into two side door leaves 17 and two middle door leaves 18; the upper part of the middle door leaf is provided with a sliding hanging ring 6, and the sliding part of the hanging ring is positioned in a C-shaped groove of the track, so that the middle door leaf is movably suspended below the track 5; the frame on one side of the side door leaf is connected with the middle door leaf through the hinge, the other side of the side door leaf is connected with the vertical pipe of the door frame through the hinge, the upper end and the lower end of the stile of the side door leaf are respectively provided with an upper rotating shaft and a lower rotating shaft, the rotating shafts are connected with the upper rotating shaft seat and the lower rotating shaft seat of the door frame on two sides of the door opening, the stile rotates around the door leaf on one side, the middle door leaf is driven to rotate to 90 degrees together.
The door leaf adopts a 1.0mm hot galvanizing metal sandwich board taking polyurethane as a core material, 1.0mm cold rolled steel is adopted as an outer edge-covering 4 of the corner of the door leaf, the edge-covering is riveted with the sandwich board, the four corners of the door leaf are fixed with special triangular corner protectors by screws, and the thickness of the door leaf is 75 mm.
The transmission system comprises a manual chain 16 part, a connecting rod part and a gear box, and an operator can realize the opening and closing actions of the folding door by pulling the manual chain forwards and backwards. The length of the annular manual chain is 7 meters.
The high-altitude folding door with the manual chain switch adopts sealing materials, comprises sealing strips and sealing glue, the contact part of the door leaf and the door frame and the space between the door frame and the door opening are mainly sealed by the sealing strips, and the high-altitude folding door has the functions of sound insulation, dust prevention and water prevention.
Fig. 4 is a schematic view of a folding door driving according to an embodiment of the present invention. The invention relates to a driving principle of a high-altitude folding door with a manual chain switch, which comprises the following steps:
the side door leaf and the middle door leaf are connected through a middle hinge, the upper end and the lower end of the door stile on the other side of the side door leaf are respectively provided with an upper rotating shaft and a lower rotating shaft, the rotating shafts are fixedly connected with the upper end and the lower end of the door leaf, meanwhile, the 2 nd connecting rod is fixedly connected with the upper rotating shaft, and the 90-degree opening and closing of the door leaf is realized by rotating the 2.
The invention relates to a using method of a high-altitude folding door with a manual chain switch, which comprises the following steps:
when operating personnel pulled the manual chain and opened the folding door, 1 st gear 15 rotated, drive 2 nd gear 8 on the gear box 7 and rotated, 1 st spur gear 19 and 2 nd spur gear 21 controlled about the horizontal direction, promote 1 st connecting rod 10 and 2 nd connecting rod 13 around the upper shaft rotation of stile 14, because the upper and lower axle concreties with the limit door leaf, therefore the limit door leaf rotates, drive the rotation of well door leaf, because the guide effect of the slip rings 6 at well door leaf top, the door leaf moved to the stile direction along the track, the folding door opened gradually.
Fig. 5 is a schematic structural diagram of a gear box body of a folding door according to an embodiment of the invention. If the folding door needs to be closed, the user only needs to pull the manual chain reversely to enable the 1 st gear 15 to rotate reversely, and then the folding door can be closed.
The invention has substantive characteristics and obvious technical progress, the high-altitude folding door of the manual chain switch realizes the function of opening and closing the folding door at a high-altitude position, and the normal use is not influenced even if a corresponding hole (the width of the hole is not more than 1/2 of the width of the side door leaf) is arranged on the middle door leaf.
The high-altitude folding door with the manual chain switch is applied to project engineering of Peru TOQUEWAL cement factories, has remarkable effect, is safe and reliable, is convenient to use, has low maintenance cost and the like, and is approved by owners.
The above embodiments are provided only for illustrating the present invention and not for limiting the present invention, and those skilled in the art can make various changes or modifications without departing from the spirit and scope of the present invention. Accordingly, all equivalents are intended to fall within the scope of the invention, which is defined in the claims.
Claims (7)
1. The utility model provides a high altitude folding door of manual chain switch, single track loop wheel machine rail (9) vertically pass through the folding door in the middle of folding door leaf top, includes door frame, track, door leaf, transmission system, its characterized in that:
the door frame is a vertical pipe on two sides of the folding door, the bottom end of the vertical pipe is fixedly connected with a purline at the top end of a wall panel (2) below, and the distance from the top end of the wall panel to the ground is more than or equal to 1400 mm;
the tracks (5) are two tracks which are positioned at the same horizontal position and are respectively arranged at two sides of a steel rail (9) of the monorail crane, the tracks are hot galvanizing cold-formed steel, the section of each track is C-shaped, and the tracks are fixedly connected with purlins (12) above the tracks; one end of the purline is fixedly connected with the top of the vertical pipe of the door frame, and the other end of the purline is fixedly connected with the bottom of a gear box (7) arranged above the purline; the gear box is positioned above the steel rail of the monorail crane;
the door leaf is provided with four rectangular door leaves with the same size and the height of more than or equal to 5000mm, and the rectangular door leaves are divided into two side door leaves and two middle door leaves; the upper part of the middle door leaf is provided with a sliding lifting ring (6), and the sliding part of the lifting ring is positioned in the C-shaped steel groove of the track, so that the middle door leaf is movably suspended below the track (5); the frame on one side of the side door leaf is connected with the middle door leaf through a hinge, the other side of the side door leaf is connected with the vertical pipe of the door frame through a hinge, the upper end and the lower end of the stile of the side door leaf are respectively provided with an upper rotating shaft and a lower rotating shaft, the rotating shafts are connected with the upper rotating shaft seat and the lower rotating shaft seat of the door frame on the two sides of the door opening, the stile of the side door leaf rotates around the rotating shafts, and meanwhile, the middle door leaf is driven to;
the transmission system comprises a manual chain, a connecting rod and a gear box, wherein: the 1 st gear (15) is arranged on the outer side of the door frame vertical pipe, and the 2 nd gear (8) is arranged in the middle of the gear box (7); the 1 st gear and the 2 nd gear transmit motion through a transmission chain (11), the transmission chain (11) and a manual chain (16) transmit motion through a rotating shaft of the 1 st gear (15), and the upper end of the 2 nd gear is meshed and connected with the 1 st straight gear (19); the lower end of the 2 nd straight gear is meshed with the 2 nd straight gear (21), and the 1 st straight gear and the 2 nd straight gear are arranged in parallel; one end of a 1 st connecting rod (10) is hinged with a 1 st straight gear and a 2 nd straight gear, the other end of the 1 st connecting rod (10) is hinged with one end of a 2 nd connecting rod (13), and the other end of the 2 nd connecting rod is connected with a door lifter rotating shaft seat; the upper and lower stiles of the side door leaf are respectively connected with the upper and lower stile rotating shaft seats.
2. The manual chain-switch overhead folding door as claimed in claim 1, wherein the distance between the frames on both sides of the door frame is 3400 mm.
3. The overhead folding door of manual chain switch of claim 1, wherein the vertical tube is made of 80 x 4.5mm square tube.
4. The overhead folding door with the manual chain switch as claimed in claim 1, wherein the door leaf is made of a 1.0mm hot-galvanized metal sandwich board with polyurethane as a core material, a 1.0mm cold-rolled steel edge is adopted, the edge is riveted with the sandwich board, special triangular corner protectors are fixed at four corners of the door leaf through screws, and the thickness of the door leaf is 75 mm.
5. The manual chain-switch overhead folding door as claimed in claim 1, wherein the contact part of the door leaf and the door frame of the folding door and the sealing between the door frame and the door opening are realized by sealing strips.
6. The manual chain-switch overhead folding door of claim 1, wherein the manual chain is 7m in length.
7. The overhead folding door with manual chain switch as claimed in claim 1, wherein the length of the 1 st spur gear (19) and the 2 nd spur gear (21) is 855mm or more.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201710573901.3A CN109252794B (en) | 2017-07-14 | 2017-07-14 | High-altitude folding door with manual chain switch |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201710573901.3A CN109252794B (en) | 2017-07-14 | 2017-07-14 | High-altitude folding door with manual chain switch |
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CN109252794A CN109252794A (en) | 2019-01-22 |
CN109252794B true CN109252794B (en) | 2020-03-06 |
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Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
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CN2061970U (en) * | 1989-11-25 | 1990-09-12 | 中原显示技术开发公司 | Power driven foldable large safety door |
SE534778C2 (en) * | 2010-01-19 | 2011-12-20 | Rosen Goran | Motor-driven drive arrangement for door systems with substantially vertical vertical axes pivotally arranged door sections |
CN102877730A (en) * | 2012-10-22 | 2013-01-16 | 李创 | Automatic accordion door opening and closing device |
CN104653043B (en) * | 2015-02-16 | 2017-01-18 | 广西南宁市繁星科技有限公司 | Slipping automatic multi-leaf door with parallelogram push rod pre-opening mechanism |
CN104863461B (en) * | 2015-04-14 | 2017-02-01 | 华侨大学 | Two-leaf intelligent door without dead points |
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2017
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