CN118564164A - A folding door - Google Patents

Abstract

The present invention relates to the technical field of folding doors, and specifically discloses a folding door, comprising a fixed slideway made of aluminum alloy fixedly installed in a wall, side guard plates are clamped and installed on the front and rear sides of the fixed slideway, a starting door panel, a middle door panel and a terminal door panel are arranged below the fixed slideway, a starting fixed seat fixedly installed inside the fixed slideway is arranged just above the starting door panel, a middle hanging box is arranged just above the middle door panel, and a terminal hanging box is arranged just above the terminal door panel, and a rotating structure is formed by connecting bolts between the starting door panel and the starting fixed seat, between the middle door panel and the middle hanging box, and between the terminal door panel and the terminal hanging box. In the folding door, adjacent folding door panels are rotated by connecting hinges, and the connecting hinges are arranged as a split structure, and dustproof pads and washers are installed between the upper hinge and the lower hinge, and the washers are used to isolate the upper hinge from the lower hinge, so as to avoid friction between the two hinges when rotating to increase resistance.

Description

A folding door

Technical Field

The invention relates to the technical field of folding doors, in particular to a folding door.

Background Art

A folding door is a door that can be folded up, usually used to save space or for decorative purposes. It can be a single door or multiple doors, and the folding range can be adjusted as needed. It is commonly found in homes, commercial places, offices and other places. It is beautiful, practical and flexible. Folding doors are made of a variety of materials, such as wood, aluminum alloy, glass, etc.

Folding doors need to be connected by hinges to ensure relative rotation, but traditional bearing hinges (such as in the prior art, Chinese patent publication number CN2771431Y discloses a hinge for a door, window or wing leaf, particularly a hinge with a pin, including a left hinge, a right hinge and a rotating shaft, and a thrust bearing is arranged between the rotating surfaces of the left and right hinges on the rotating shaft). The left hinge and the right hinge are connected by the rotating shaft and the bearing, and friction is easily generated between the left hinge and the right hinge during use, so that the opening and closing of the hinges generates greater resistance. Although the improved bearing hinge (such as the prior art, the Chinese patent with publication number CN107299804A discloses a double ball hinge, one connecting leaf has upper and lower hinge tubes, the other connecting leaf has a middle hinge tube; upper and lower gaps are left between the middle hinge tube and the upper and lower hinge tubes; the lower gap is equipped with a lower ball bearing, the lower ball bearing has a pair of bead plates and a number of balls, the middle of the bead plate has a through hole, the two bead plates have semicircular annular grooves, the two grooves form a channel, the channels are placed in the channels, the two bead plates are tightly fitted in the inner holes of the lower hinge tube and the middle hinge tube; the upper gap is equipped with a ball bearing, the upper ball bearing has upper and lower bead plates and a number of balls) uses a gasket to reduce the friction between the two connecting leaves, but it still cannot completely solve the resistance generated during the opening and closing of the hinge. How to prevent contact and friction between the hinge leaves is the key factor in solving the hinge resistance. Most traditional hinges are pre-installed fixed bearing hinges, which often require positioning and drilling of hinge installation positions on doors and windows during installation, and then fixing the doors and windows to the fixed bearing hinges. Since doors and windows are heavy, it is easy to make errors during positioning and drilling, which ultimately affects the installation quality.

Meanwhile, in the prior art, a Chinese patent with publication number CN108005541A discloses a folding door, which is formed by two or more folding door units being flexibly connected in sequence, one side of the profile plate of the folding door unit is provided with a flexible connecting strip, and the other side is provided with a slot that matches the flexible connecting strip of the adjacent folding door unit, and the specific structure of the flexible connecting strip is: one end of the flexible connecting strip is connected to the profile plate of the folding door unit, and the other end is provided with a hard card strip that can be inserted into the slot of the adjacent folding door unit, and the two sides of the flexible connecting strip near the hard card strip are symmetrically provided with strip plates or arc plates, and the strip plates or arc plates match the outer side of the slot of the profile plate of the adjacent folding door unit. The present invention has a simple structure, convenient assembly, beautiful appearance, long service life, and light weight, and is suitable for workshops, shopping malls, office buildings, exhibition halls, homes and other places.

The buffer structure in the above folding door system is not perfect, so it is easy to bump in the critical area of the folding door when it is opened and closed, thereby damaging the folding door accessories. Although some folding doors have some buffer components to buffer the folding door, if the user's force is too weak, it is easy for the folding door to fail to break through the damping of the buffer component, resulting in uneven closing of the door.

Summary of the invention

The object of the present invention is to provide a folding door to solve the problem of large folding resistance and poor damping effect of the door panel connecting hinges mentioned in the above background technology.

To achieve the above object, the present invention provides the following technical solution: a folding door, comprising a fixed slideway made of aluminum alloy fixedly installed in a wall, wherein side guard plates are mounted on the front and rear sides of the fixed slideway, and further comprising:

The fixed slide is provided with a starting door panel, a middle door panel and a terminal door panel below the fixed slide, a starting fixed seat fixedly installed inside the fixed slide is provided just above the starting door panel, a middle hanging box is provided just above the middle door panel, and a terminal hanging box is provided just above the terminal door panel;

The starting door panel and the starting fixed seat, the middle door panel and the middle hanging box, and the end door panel and the end hanging box are all connected by connecting bolts to form a rotating structure, and the connecting positions between the starting door panel, the middle door panel and the end door panel are equipped with connecting hinges, and the connecting hinges are provided with a protective mechanism for reducing the opening and closing resistance;

A buffer mechanism for protecting the door when opening and closing is arranged inside the fixed slideway, and the buffer mechanism comprises a damping buffer fixedly installed inside the fixed slideway.

Preferably, the protection mechanism comprises a connecting bearing installed inside the connecting hinge, and the connecting hinge is divided into two parts, an upper hinge and a lower hinge, and the upper hinge and the lower hinge are connected by fixing bolts.

Preferably, a dustproof pad and a gasket are installed between the connection position between the upper hinge and the lower hinge, and auxiliary magnetic blocks are fixedly installed on the outer surfaces of the upper hinge and the lower hinge.

Preferably, the corresponding surfaces of the auxiliary magnetic blocks have opposite magnetic properties and are attracted to each other, and the upper hinge and the lower hinge are fixedly connected to adjacent door panels.

Preferably, movable rollers are rotatably mounted on the sides of the middle hanging box and the end hanging box, and sliding friction occurs between the movable rollers and the card slots inside the fixed slideway, and through holes are opened at equal intervals on the sides of the movable rollers.

Preferably, the buffer mechanism further comprises an extrusion baffle fixedly mounted above the middle hanging box and the end hanging box, and the extrusion baffle and the damping buffer perform mutual extrusion and buffering.

Preferably, buffer springs and rubber pads are fixedly installed on the outside of the middle hanging box, the end hanging box and the starting fixed seat, and anti-slip grooves are also provided on the lower surfaces of the middle hanging box and the end hanging box, and the buffer springs are arranged as spoon-shaped structures, and the buffer springs are engaged with the corresponding anti-slip grooves.

Preferably, a storage box fixedly mounted on the fixed slide is provided on the inner side of the side guard plate, and lubricating oil is stored inside the storage box, and a smear sponge corresponding to the movable roller is fixedly mounted on the outer surface of the rear side of the storage box, and a first connecting tube connected to the interior of the storage box is fixedly mounted below the smear sponge.

Preferably, an airbag is fixedly mounted on the front end of the rear outer surface of the storage box, and an extrusion plate rotatably connected to the storage box is fixedly mounted outside the airbag, and the extrusion plate is configured to be a magnetic material that causes the moving rollers to repel each other.

Preferably, a second connecting pipe connected to the interior of the storage box is fixedly installed above the inflation airbag, and a one-way valve that only allows air to flow out but not in is provided on the outside of the second connecting pipe, and a piston plate for squeezing air is slidably installed inside the storage box.

Compared with the prior art, the beneficial effects of the present invention are: the folding door adopts a new structural design, the specific contents of which are as follows:

1. Adjacent folding door panels are rotated by connecting hinges. The connecting hinges are set as a split structure. Dustproof pads and washers are installed between the upper hinges and the lower hinges. The washers are used to isolate the upper hinges from the lower hinges, so as to avoid friction between the two hinges when rotating and increase resistance;

Furthermore, the upper hinge and the lower hinge are connected to each other by fixing bolts. During installation, it is only necessary to fix the two hinges to the door panels, and the two hinges are butted against each other. This process is convenient for the workers to position and perform disassembly and assembly operations.

2. A buffer mechanism is arranged inside the fixed slide. When the folding door is closed, the extrusion baffle above the end hanging box and the damping buffer are squeezed against each other, and the elastic effect of the damping buffer is used to achieve a buffering effect, thereby reducing the impact force and preventing the door panel from being subjected to excessive force and affecting its service life. When the door is about to be closed, the auxiliary magnetic blocks are attracted to each other to fully open the folding door, avoiding the situation where the door is not closed tightly due to negligence of personnel;

Furthermore, when the folding door is opened, the end hanging box, the middle hanging box and the starting fixed seat are close to each other, and finally the corresponding buffer spring pieces enter the corresponding anti-slip grooves, and the elastic effect of the buffer spring pieces is utilized, and the buffer spring pieces and the anti-slip grooves are finally engaged with each other, which can prevent the folding door from rebounding after opening.

3. A lubrication mechanism is arranged inside the fixed slideway. During the process of opening and closing the door, the moving roller and the extrusion plate repel each other, so that the extrusion plate squeezes the airbag. At this time, the air in the airbag enters the storage box through the second connecting pipe, so that the piston plate is pushed by air pressure, so that the piston plate passes the lubricating oil into the smear sponge through the first connecting pipe;

Furthermore, the lubricating oil is applied to the outside of the moving roller by a smearing sponge, and then the lubricating oil enters the groove position of the moving roller through the through hole, thereby achieving an effective lubrication effect and reducing jamming during use.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the overall folded structure of the present invention;

FIG2 is a schematic diagram of the overall structure of the present invention in an expanded state;

FIG3 is an enlarged structural schematic diagram of point A in FIG2 of the present invention;

FIG4 is a schematic diagram of a connecting hinge structure of the present invention;

FIG5 is a schematic structural diagram of the connecting hinge of the present invention in a disassembled state;

FIG6 is a schematic diagram of the bottom surface structure of the starting end fixing seat of the present invention;

FIG7 is a schematic diagram of the structure of the middle section hanging box of the present invention;

FIG8 is a schematic diagram of the internal structure of the fixed slideway of the present invention;

FIG9 is a schematic diagram of the back structure of the storage box of the present invention;

FIG10 is a schematic cross-sectional view of the storage box of the present invention;

FIG. 11 is a schematic diagram of the enlarged structure of point B in FIG. 10 of the present invention.

In the figure: 1. fixed slide; 2. side guard plate; 3. starting door panel; 4. middle door panel; 5. end door panel; 6. starting fixed seat; 7. middle hanging box; 8. end hanging box; 9. connecting bolt; 10. moving roller; 1001. through hole; 11. connecting hinge; 1101. upper hinge; 1102. lower hinge; 12. connecting bearing; 13. dustproof pad; 14. gasket; 15. fixing bolt; 16. auxiliary magnetic block; 17. extrusion baffle; 18. damping buffer; 19. rubber pad; 20. buffer spring; 21. anti-skid groove; 22. storage box; 23. smear sponge; 24. first connecting pipe; 25. airbag; 26. extrusion plate; 27. second connecting pipe; 28. one-way valve; 29. piston plate.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

Embodiment 1: Please refer to Figures 1 to 5. In order to solve the problem of large friction resistance of the connecting hinge 11 when the traditional device rotates, this embodiment provides the following technical solutions, using a protective mechanism to isolate the upper hinge 1101 from the lower hinge 1102, thereby avoiding friction during rotation. Specifically disclosed is: a fixed slide 1 made of aluminum alloy fixedly installed in the wall, side guard plates 2 are clamped and installed on the front and rear sides of the fixed slide 1, a starting door panel 3, a middle door panel 4 and an end door panel 5 are arranged below the fixed slide 1, a starting fixed seat 6 fixedly installed inside the fixed slide 1 is arranged directly above the starting door panel 3, a middle hanging box 7 is arranged directly above the middle door panel 4, and an end hanging box 8 is arranged directly above the end door panel 5, a rotating structure is formed by connecting bolts 9 between the starting door panel 3 and the starting fixed seat 6, between the middle door panel 4 and the middle hanging box 7, and between the end door panel 5 and the end hanging box 8, and the connection positions between the starting door panel 3, the middle door panel 4 and the end door panel 5 A connecting hinge 11 is installed, and a protective mechanism for reducing the opening and closing resistance is arranged inside the connecting hinge 11. The protective mechanism includes a connecting bearing 12 installed inside the connecting hinge 11, and the connecting hinge 11 is divided into an upper hinge 1101 and a lower hinge 1102. The upper hinge 1101 and the lower hinge 1102 are connected by a fixing bolt 15. A dustproof pad 13 and a gasket 14 are installed between the connecting position between the upper hinge 1101 and the lower hinge 1102. Auxiliary magnetic blocks 16 are fixedly installed on the outer surfaces of the upper hinge 1101 and the lower hinge 1102. The corresponding surfaces of the auxiliary magnetic blocks 16 have opposite magnetic properties and are attracted to each other. The upper hinge 1101 and the lower hinge 1102 are fixedly connected to the adjacent door panels. The side surfaces of the middle hanging box 7 and the end hanging box 8 are rotatably installed with movable rollers 10, and the movable rollers 10 slide and rub against the card slots inside the fixed slide 1, and through holes 1001 are evenly spaced on the side surfaces of the movable rollers 10.

When using the device, first fix the fixed slide 1 in the wall corresponding to the door frame, and then install the starting door panel 3, the middle door panel 4 and the end door panel 5 respectively. When opening and closing the door, the starting door panel 3, the middle door panel 4 and the end door panel 5 rotate relative to each other, and at the same time, the moving roller 10 moves inside the fixed slide 1. During the rotation of the door panel, the connecting hinge 11 rotates synchronously, and the upper hinge 1101 and the lower hinge 1102 are isolated by a gasket 14 to reduce friction resistance.

The installation method of the connecting hinge 11 is as follows:

The connecting bearing 12 is embedded into the lower hinge 1102, and then the upper hinge 1101 and the lower hinge 1102 are respectively installed on the frame of the door panel. After the frame is fixed to a predetermined position, the axes of the upper hinge 1101 and the lower hinge 1102 are aligned; after the fixing bolt 15 passes through the connecting bearing 12, it passes through the washer 14 and is screwed into the upper hinge 1101 to fix the connecting hinge 11. At this time, the lower hinge 1102 is fixed to the outer ring of the connecting bearing 12, and the upper hinge 1101 is fixed to the inner ring of the connecting bearing 12. There is no direct contact between the upper hinge 1101 and the lower hinge 1102, and no friction resistance is generated except for the connecting bearing 12. According to different installation positions, the upper and lower positions of the upper hinge 1101 and the lower hinge 1102 can be switched to meet the convenience of tightening the fixing bolt 15, or the hinge can be fixed first and then fixed to the frame.

Embodiment 2: Please refer to Figures 3 to 7. In order to solve the problem of poor buffering effect of traditional devices during use, this embodiment provides the following technical solutions, which utilizes a buffer mechanism to achieve effective buffering effect when opening and closing the door, thereby extending the service life of the device. Specifically disclosed is: a buffer mechanism for protecting the door when opening and closing is arranged inside the fixed slide 1, and the buffer mechanism includes a damping buffer 18 fixedly installed inside the fixed slide 1. The buffer mechanism also includes an extrusion baffle 17 fixedly installed above the middle hanging box 7 and the end hanging box 8, and the extrusion baffle 17 and the damping buffer 18 are mutually squeezed and buffered. Buffer springs 20 and rubber pads 19 are fixedly installed on the outside of the middle hanging box 7, the end hanging box 8 and the starting fixed seat 6, and anti-slip grooves 21 are also opened on the lower surfaces of the middle hanging box 7 and the end hanging box 8, and the buffer springs 20 are arranged as spoon-shaped structures, and the buffer springs 20 and the corresponding anti-slip grooves 21 are mutually engaged.

When the folding door is closed, the extrusion baffle 17 above the end hanging box 8 squeezes the damping buffer 18 at the end inside the fixed slide 1, thereby utilizing the damping effect of the damping buffer 18 to achieve the purpose of buffering. When the folding door is opened, the middle hanging box 7, the end hanging box 8 and the starting fixed seat 6 are close to each other. At this time, the rubber pad 19 is used for buffering protection, and finally the corresponding buffer spring sheet 20 corresponds to the anti-skid groove 21. The elastic effect of the buffer spring sheet 20 is also achieved, and the buffer spring sheet 20 and the anti-skid groove 21 are engaged with each other to prevent the door panel from rebounding.

Embodiment 3: Please refer to Figures 7 to 10. In order to solve the problem of poor lubrication effect and jamming of the traditional device for a long time, this embodiment provides the following technical solutions: a lubrication mechanism is arranged inside the fixed slide 1, and the movable roller 10 is automatically lubricated when the door is opened and closed. Specifically, a storage box 22 fixedly installed with the fixed slide 1 is arranged on the inner side of the side guard plate 2, and lubricating oil is stored in the storage box 22, and a smear sponge 23 corresponding to the movable roller 10 is fixedly installed on the outer surface of the rear side of the storage box 22, and a connecting sponge 23 is fixedly installed below the smear sponge 23. A first connecting pipe 24 leads to the interior of the storage box 22, a blower airbag 25 is fixedly installed on the front end of the outer surface of the rear side of the storage box 22, and an extrusion plate 26 rotatably connected to the storage box 22 is fixedly installed on the outside of the blower airbag 25, and the extrusion plate 26 is set to a magnetic material that repel the moving roller 10, and a second connecting pipe 27 connected to the interior of the storage box 22 is fixedly installed above the blower airbag 25, and a one-way valve 28 that only allows outflow but not inflow is set on the outside of the second connecting pipe 27, and a piston plate 29 for squeezing air is slidably installed inside the storage box 22.

When opening and closing the folding door, when the moving roller 10 moves to the position corresponding to the squeezing plate 26, the squeezing plate 26 is rotated by utilizing the magnetic repulsion, and the squeezing plate 26 is utilized to squeeze the airbag 25. When the airbag 25 is squeezed, the air inside enters the storage box 22 through the second connecting pipe 27 (under the action of the one-way valve 28, the air can only flow into the storage box 22 in one direction). At this time, the air pressure inside the storage box 22 increases, and the piston plate 29 is pushed to move under the action of the air pressure. The piston plate 29 is utilized to transport the lubricating oil inside the storage box 22 through the first connecting pipe 24 to the smear sponge 23, and the lubricating oil is smeared on the surface of the moving roller 10 by utilizing the smear sponge 23. At this time, the lubricating oil enters the groove position of the moving roller 10 through the through hole 1001, thereby achieving effective lubrication.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims (10)

1. A folding door, comprising a fixed slideway (1) made of aluminum alloy and fixedly installed in a wall, wherein the fixed slideway (1) is provided with side guard plates (2) mounted on both the front and rear sides thereof, and characterized in that it further comprises: A starting door panel (3), a middle door panel (4) and a terminal door panel (5) are arranged below the fixed slideway (1); a starting fixed seat (6) fixedly mounted inside the fixed slideway (1) is arranged directly above the starting door panel (3); a middle hanging box (7) is arranged directly above the middle door panel (4); and a terminal hanging box (8) is arranged directly above the terminal door panel (5); A rotating structure is formed by connecting bolts (9) between the starting door panel (3) and the starting fixed seat (6), between the middle door panel (4) and the middle hanging box (7), and between the end door panel (5) and the end hanging box (8), and a connecting hinge (11) is installed at the connecting position between the starting door panel (3), the middle door panel (4) and the end door panel (5), and a protective mechanism for reducing opening and closing resistance is arranged inside the connecting hinge (11); A buffer mechanism for protecting the door when opening and closing is arranged inside the fixed slideway (1), and the buffer mechanism comprises a damping buffer (18) fixedly mounted inside the fixed slideway (1). 2. A folding door according to claim 1, characterized in that: the protective mechanism comprises a connecting bearing (12) installed inside the connecting hinge (11), and the connecting hinge (11) is divided into two parts, an upper hinge (1101) and a lower hinge (1102), and the upper hinge (1101) and the lower hinge (1102) are connected by a fixing bolt (15). 3. A folding door according to claim 2, characterized in that a dustproof pad (13) and a gasket (14) are installed between the connection position between the upper hinge (1101) and the lower hinge (1102), and auxiliary magnetic blocks (16) are fixedly installed on the outer surfaces of the upper hinge (1101) and the lower hinge (1102). 4. A folding door according to claim 3, characterized in that: the corresponding surfaces of the auxiliary magnetic blocks (16) have opposite magnetic properties and are attracted to each other, and the upper hinge (1101) and the lower hinge (1102) are fixedly connected to adjacent door panels. 5. A folding door according to claim 1, characterized in that: movable rollers (10) are rotatably mounted on the sides of the middle hanging box (7) and the end hanging box (8), and sliding friction occurs between the movable rollers (10) and the slots inside the fixed slideway (1), and through holes (1001) are opened on the sides of the movable rollers (10) at equal intervals. 6. A folding door according to claim 1, characterized in that: the buffer mechanism further comprises an extrusion baffle (17) fixedly mounted above the middle hanging box (7) and the end hanging box (8), and the extrusion baffle (17) and the damping buffer (18) are mutually squeezed and buffered. 7. A folding door according to claim 6, characterized in that: the middle hanging box (7), the end hanging box (8) and the starting fixed seat (6) are all fixedly installed with buffer springs (20) and rubber pads (19) on the outside, and the lower surfaces of the middle hanging box (7) and the end hanging box (8) are also provided with anti-skid grooves (21), and the buffer springs (20) are arranged as spoon-shaped structures, and the buffer springs (20) and the corresponding anti-skid grooves (21) are mutually engaged. 8. A folding door according to claim 1, characterized in that: a storage box (22) fixedly mounted to the fixed slide (1) is arranged on the inner side of the side guard plate (2), and lubricating oil is stored inside the storage box (22), and a smear sponge (23) corresponding to the movable roller (10) is fixedly mounted on the outer surface of the rear side of the storage box (22), and a first connecting pipe (24) connected to the interior of the storage box (22) is fixedly mounted below the smear sponge (23). 9. A folding door according to claim 8, characterized in that: an airbag (25) is fixedly mounted on the front end of the rear outer surface of the storage box (22), and an extrusion plate (26) rotatably connected to the storage box (22) is fixedly mounted on the outside of the airbag (25), and the extrusion plate (26) is configured to be a magnetic material that repel the moving roller (10). 10. A folding door according to claim 9, characterized in that: a second connecting pipe (27) connected to the interior of the storage box (22) is fixedly installed above the inflation airbag (25), and a one-way valve (28) that can only output but not input is arranged outside the second connecting pipe (27), and a piston plate (29) for squeezing air is slidably installed inside the storage box (22).