A folding door

Abstract

The present invention relates to the technical field of folding doors, and in particular to a folding door, comprising an external frame installed at an inlet and outlet position and a top storage frame bolted to the upper end of the outer side surface of the external frame. A folding door of the present invention assembles and guides a folding windshield door plate and a folding multi-link guide mechanism on both sides through a combined side longitudinal guide rail and a combined side storage guide rail, so that the folding windshield door plate can be automatically flipped and separated during the lifting process, with a small flip angle, reduced energy consumption, a firm and stable structure, and no need to occupy a large amount of top space, which is convenient for assembly; the folding windshield door plate is composed of a multifunctional door frame and a folding multi-link guide mechanism on both sides thereof that is movably connected, and is guided and assembled by using three layers of independently composed combined side longitudinal guide rails, which can effectively improve the compressive strength of the folding windshield door plate, and the lifting stability is also greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of folding doors, in particular to a folding door. Background Art

[0002] Folding doors are mainly used for partitions in workshops, shopping malls, office buildings, showrooms, home decoration and other places. They can effectively play the role of heat insulation, dust prevention, noise reduction, sound insulation, shielding, etc. At present, the folding doors on the market have a simple structure, and the transmission method is mostly through the transmission belt, and then the adjacent folding boards are assembled by the movable brackets on both sides of the folding board connection end. This assembly and storage method requires the entire folding board to be turned over and folded at the top, resulting in a large storage space at the top, high energy consumption, and low stability. Summary of the invention

[0003] The technical problem to be solved by the present invention is: in order to solve the problems existing in the above-mentioned background technology, an improved folding door is provided to solve the problem that the folding doors currently on the market need to flip and fold the entire folding plate at the top for storage, resulting in a large top storage space, high energy consumption and low stability.

[0004] The technical solution adopted by the present invention to solve its technical problems is: a folding door, including an external frame installed at the inlet and outlet position and a top storage frame bolted to the upper end of the outer side surface of the external frame, the two ends of the outer side surface of the external frame are bolted with combined side longitudinal guide rails, and the inner walls on both sides of the top storage frame are bolted with combined side storage guide rails that match the combined side longitudinal guide rails. The inner side of the external frame is provided with a folding windshield door panel composed of multiple multifunctional door frames, and the folding windshield door panel is movably assembled with the combined side longitudinal guide rails and the combined side storage rails through folding multi-link guide mechanisms on both sides.

[0005] The combined side longitudinal guide rails include a first longitudinal slide rail, a second longitudinal slide rail and a third longitudinal slide rail fixed on the inner walls on both sides of the external frame; the combined side storage guide rails include a first transverse storage slide rail, a second transverse storage slide rail and a fan-shaped guide slide rail fixed on the inner walls on both sides of the top storage frame; the upper end of the first longitudinal slide rail is fixedly connected to the first transverse storage slide rail via a first arc-shaped guide rail; the upper end of the second longitudinal slide rail is fixedly connected to the second transverse storage slide rail via a second arc-shaped guide rail; the upper end of the third longitudinal slide rail is fixedly connected to the fan-shaped guide rail via a third arc-shaped guide rail.

[0006] A bottom movable assembly bracket is fixedly installed on the lower end of the front end side wall of the multifunctional door frame by bolts, and a top movable assembly bracket is fixedly installed on the upper end of the rear end side wall of the multifunctional door frame by bolts. The bottom movable assembly bracket and the top movable assembly bracket are both internally inserted with a lateral assembly shaft that is externally sleeved with a first guide wheel. The bottom movable assembly bracket is inserted into the first longitudinal slide rail through the first guide wheel and is movably connected to the first longitudinal slide rail. The top movable assembly bracket is inserted into the first longitudinal slide rail through the first guide wheel and is movably connected to the second longitudinal slide rail.

[0007] The folding multi-link guide mechanism includes an upper movable connecting rod and a lower movable connecting rod connected to the lower end of the upper movable connecting rod through a central lateral assembly shaft. The outer side of the central lateral assembly shaft is located inside the third longitudinal slide rail and is movably sleeved with a central guide wheel.

[0008] The upper end of the upper movable connecting rod and the lower end of the lower movable connecting rod are both coaxially fixedly connected with an integral structure movable assembly bracket that matches the top movable assembly bracket.

[0009] The multifunctional door frame comprises an outer frame of a U-shaped structure, a flexible roller blind adjusting mechanism movably mounted at an opening position inside the outer frame, and an elastic tightening mechanism elastically mounted at the opening position inside the outer frame.

[0010] An inner side wall of the external frame is provided with an internal storage transmission groove of a U-shaped structure for installing a flexible roller blind adjustment mechanism and an elastic tightening mechanism. The flexible roller blind adjustment mechanism includes an upper reel movably mounted on the top surface of the internal storage transmission groove, a lower reel movably mounted on the bottom surface of the internal storage transmission groove, and a roller blind film sleeved on the outside of the upper reel and the lower reel.

[0011] The elastic tightening mechanism is an elastic extrusion limiting piece fixed by bolts on the inner side of the internal receiving transmission groove.

[0012] An LED fill light tube for lighting is fixedly connected to the inner side surface of the internal storage transmission groove.

[0013] A top transmission shaft with main driving gears at both ends is movably assembled on the top surface of the top storage frame through a top bracket, and the outer side of the main driving gear is transmission-connected with a lateral lifting belt for controlling the lifting of the foldable windshield door panel.

[0014] The beneficial effects of the present invention are:

[0015] (1) A folding door of the present invention uses a combined side longitudinal guide rail and a combined side storage guide rail to assemble and guide the folding windshield door plate and the folding multi-link guide mechanism on both sides, so that the folding windshield door plate can be automatically flipped and separated during the lifting process, with a small flip angle, reduced energy consumption, a firm and stable structure, no need to occupy a large amount of top space, and easy assembly;

[0016] (2) The foldable windshield door panel is composed of a multifunctional door frame and two foldable multi-link guide mechanisms on both sides thereof that are movably connected. At the same time, it is guided and assembled using three layers of independently composed combined side longitudinal guide rails, which can effectively improve the compressive strength of the foldable windshield door panel and greatly improve the lifting stability;

[0017] (3) By installing a flexible roller shutter adjustment mechanism, an elastic tightening mechanism and an LED fill light tube in the internal storage transmission groove of the multifunctional door frame, the functionality and practicality of the entire folding door are greatly enhanced;

[0018] (4) The upper ends of the longitudinal slide rails are fixedly connected to the transverse storage slide rails through arc-shaped guide rails, and cooperate with the fan-shaped guide rails to facilitate the top guide flipping and reduce friction resistance;

[0019] (5) The main driving gear located at the top of the external frame drives the lateral lifting belt to control the lifting and lowering of the folding windshield door panel. The transmission mechanism has a reasonable structural layout, occupies a small space, and has direct and efficient driving. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0021] Figure 1 It is a structural schematic diagram of the present invention.

[0022] Figure 2 It is a side cross-sectional view of the present invention.

[0023] Figure 3 It is an internal sectional view of the multifunctional door frame of the present invention.

[0024] Figure 4 It is a cross-sectional view of the combined side longitudinal guide rail of the present invention. DETAILED DESCRIPTION

[0025] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0026] Figure 1 , Figure 2 and Figure 3A folding door shown in the figure comprises an external frame 1 installed at the inlet and outlet position and a top storage frame 2 bolted to the upper end of the outer side surface of the external frame 1, combined side longitudinal guide rails are bolted to the two ends of the outer side surface of the external frame 1, and combined side storage guide rails matching with the combined side longitudinal guide rails are bolted to the inner walls on both sides of the top storage frame 2, and a folding windshield door panel composed of three multifunctional door frames is arranged on the inner side of the external frame 1, and the folding windshield door panel is movably assembled with the combined side longitudinal guide rails and the combined side storage guide rails through folding multi-link guide mechanisms on both sides.

[0027] like Figure 2 and Figure 4 As shown, in order to cooperate with the connection and fixation of the upper and lower ends, the combined side longitudinal guide rails include a first longitudinal slide rail 4, a second longitudinal slide rail 5 and a third longitudinal slide rail 6 fixed on the inner walls on both sides of the external frame 1, and the combined side storage guide rails include a first transverse storage slide rail 7, a second transverse storage slide rail 8 and a fan-shaped guide slide rail 9 fixed on the inner walls on both sides of the top storage frame 2. The upper end of the first longitudinal slide rail 4 is fixedly connected to the first transverse storage slide rail 7 through the first arc guide rail 10, the upper end of the second longitudinal slide rail 5 is fixedly connected to the second transverse storage slide rail 8 through the second arc guide rail 11, and the upper end of the third longitudinal slide rail 6 is fixedly connected to the fan-shaped guide rail 9 through the third arc guide rail 12.

[0028] Furthermore, in order to cooperate with the movable guide, the lower end of the front end side wall of the multifunctional door frame is fixed with a bottom movable assembly bracket 13 by bolts, and the upper end of the rear end side wall of the multifunctional door frame is fixed with a top movable assembly bracket 14 by bolts. The bottom movable assembly bracket 13 and the top movable assembly bracket 14 are both internally connected with a lateral assembly shaft that is externally sleeved with a first guide wheel 15. The bottom movable assembly bracket 13 is inserted into the first longitudinal slide rail 4 through the first guide wheel 15 and is movably connected to the first longitudinal slide rail 4. The top movable assembly bracket 14 is inserted into the first longitudinal slide rail 4 through the first guide wheel 15 and is movably connected to the second longitudinal slide rail 5.

[0029] People control the lifting of the bottom multifunctional door frame, and then the bottom movable assembly bracket 13 of the bottom multifunctional door frame is introduced from the first longitudinal slide rail 4 to the first transverse storage slide rail 7 through the first guide wheel 15, and the top movable assembly bracket 14 of the multifunctional door frame is introduced from the second longitudinal slide rail 5 to the second transverse storage slide rail 8 through the first guide wheel 15.

[0030] Furthermore, in order to cooperate with the movable assembly and central guiding, the folding multi-link guiding mechanism includes an upper movable connecting rod 16 and a lower movable connecting rod 17 connected to the lower end of the upper movable connecting rod 16 through a central lateral assembly shaft, and the outer side of the central lateral assembly shaft is located on the inner side of the third longitudinal slide rail 6 and is movably sleeved with a central guide wheel 18.

[0031] The folding multi-link guide mechanism is introduced from the third longitudinal guide rail 6 to the fan-shaped guide rail 9 via the central guide wheel 18 .

[0032] Furthermore, in order to cooperate with the movable assembly, the upper end of the upper movable connecting rod 16 and the lower end of the lower movable connecting rod 17 are both coaxially fixedly connected with an integral structure movable assembly bracket 19 that cooperates with the top movable assembly bracket 14.

[0033] The movable assembly bracket 19 at the upper end of the upper movable connecting rod 16 is sleeved on the lateral assembly axis outside the top movable assembly bracket 14 of the upper external frame 20 and is movably assembled with the upper external frame 20. The movable assembly bracket 19 at the lower end of the lower movable connecting rod 17 is sleeved on the lateral assembly axis outside the top movable assembly bracket 14 of the lower external frame 20 and is movably assembled with the lower external frame 20.

[0034] Furthermore, in order to cooperate with the storage and closing of the internal opening on all sides, the multifunctional door frame includes an external frame 20 of a U-shaped structure, a flexible roller shutter adjustment mechanism movably assembled at the internal opening position of the external frame 20, and an elastic tightening mechanism elastically assembled at the internal opening position of the external frame 20. Further, in order to cooperate with the internal assembly and the flipping, an internal storage transmission groove of a U-shaped structure for installing the flexible roller shutter adjustment mechanism and the elastic tightening mechanism is opened on the inner side wall of the external frame 20. The flexible roller shutter adjustment mechanism includes an upper roller shaft 22 movably assembled on the top surface of the internal storage transmission groove, a lower roller shaft 23 movably assembled on the bottom surface of the internal storage transmission groove, and a roller shutter film 24 sleeved on the outer side of the upper roller shaft 22 and the lower roller shaft 23.

[0035] The rolling screen film 24 can be transparent, semi-transparent or advertising cloth.

[0036] Furthermore, in order to improve the sealing performance of the opening, the elastic tightening mechanism is an elastic extrusion limiting piece 25 fixed by bolts on the inner side surface of the internal receiving transmission groove.

[0037] The structure of the elastic extrusion limit plate 25 is an L-shaped structure assembly bracket fixed by bolts on the inner side of the internal storage transmission groove and an elastic extrusion strip fixed on the assembly bracket near the end of the rolling curtain film 24. The elastic extrusion strip is used to squeeze, limit and guide the rolling curtain film 24 on all sides. Limit strips can be set on both sides of the rolling curtain film 24, which can improve the sealing on both sides.

[0038] Furthermore, in order to cooperate with the internal fill light, the display effect can be improved at night, so that the folding door can have an advertising effect, improve the economic value, and facilitate popularization and promotion. An LED fill light tube 26 for lighting fill light is fixedly connected to the inner side of the internal storage transmission groove. Furthermore, in order to cooperate with the lateral adjustment and lifting, a top transmission shaft 29 with main drive gears 28 at both ends is movably assembled on the inner top surface of the top storage frame 2 through a top bracket 27, and the outer side of the main drive gear 28 is transmission-connected to a lateral lifting belt 30 for controlling the lifting of the folding windshield door panel.

[0039] A bottom lifting block for driving the lowermost multifunctional door frame to rise and fall is bolted on the outer side of the lateral lifting belt 30 .

[0040] The folding door of the present invention assembles and guides the folding windshield door plate and the folding multi-link guide mechanisms on both sides through the combined side longitudinal guide rails and the combined side storage guide rails, so that the folding windshield door plate can be automatically turned over and separated during the lifting process, the turning angle is small, the energy consumption is reduced, the structure is firm and stable, and a large amount of top space does not need to be occupied, which is convenient for assembly; the folding windshield door plate is composed of a multifunctional door frame and the folding multi-link guide mechanisms on both sides thereof are movably connected, and the combined side longitudinal guide rails composed of three layers are used to guide and assemble it, which can effectively improve the folding windshield door plate The compressive strength and lifting stability are also greatly improved; by installing a flexible roller shutter adjustment mechanism, an elastic tightening mechanism and an LED fill light tube 26 in the internal storage transmission groove of the multifunctional door frame, the functionality and practicality of the entire folding door are greatly enhanced; the upper ends of the longitudinal slide rails are fixedly connected to the horizontal storage slide rails through arc guide rails, and cooperate with the fan-shaped guide slide rails 9 to facilitate the top guide flipping and reduce friction resistance; the main driving gear 28 located at the top of the external frame 1 drives the lateral lifting belt 30 to control the lifting and lowering of the folding windshield door panel, the structural layout of the transmission mechanism is reasonable, the space occupied is small, and the drive is direct and efficient.

[0041] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A folding door, comprising an external frame (1) installed at an entrance and exit position and a top storage frame (2) bolted to the upper end of the outer surface of the external frame (1), characterized in that: The outer side surfaces of the external frame (1) are fixed with combined side longitudinal guide rails by bolts at both ends, and the inner walls of the top storage frame (2) are fixed with combined side storage guide rails that match the combined side longitudinal guide rails by bolts on both sides. The inner side of the external frame (1) is provided with a folding windshield door plate composed of multiple multifunctional door frames, and the folding windshield door plate is movably assembled with the combined side longitudinal guide rails and the combined side storage guide rails respectively through folding multi-link guide mechanisms on both sides. The combined side longitudinal guide rails include a first longitudinal slide rail (4), a second longitudinal slide rail (5) and a third longitudinal slide rail (6) fixed on the inner walls of both sides of the external frame (1); the combined side storage guide rails include a first transverse storage slide rail (7), a second transverse storage slide rail (8) and a fan-shaped guide slide rail (9) fixed on the inner walls of both sides of the top storage frame (2); the upper end of the first longitudinal slide rail (4) is fixedly connected to the first transverse storage slide rail (7) via a first arc-shaped guide rail (10); the upper end of the second longitudinal slide rail (5) is fixedly connected to the second transverse storage slide rail (8) via a second arc-shaped guide rail (11); the upper end of the third longitudinal slide rail (6) is fixedly connected to the fan-shaped guide slide rail (9) via a third arc-shaped guide rail (12); A bottom movable assembly bracket (13) is fixedly installed at the lower end of the front side wall of the multifunctional door frame by bolts, and a top movable assembly bracket (14) is fixedly installed at the upper end of the rear side wall of the multifunctional door frame by bolts. The bottom movable assembly bracket (13) and the top movable assembly bracket (14) are both internally plugged with a lateral assembly shaft that is externally sleeved with a first guide wheel (15). The bottom movable assembly bracket (13) is inserted into the first longitudinal slide rail (4) through the first guide wheel (15) and is movably connected to the first longitudinal slide rail (4). The top movable assembly bracket (14) is inserted into the first longitudinal slide rail (4) through the first guide wheel (15) and is movably connected to the second longitudinal slide rail (5). The multifunctional door frame comprises an outer frame (20) of a U-shaped structure, a flexible roller blind adjustment mechanism movably mounted at an opening position inside the outer frame (20), and an elastic tightening mechanism elastically mounted at the opening position inside the outer frame (20); The inner side wall of the outer frame (20) is provided with an internal storage transmission groove of a U-shaped structure for installing a flexible roller blind adjustment mechanism and an elastic tightening mechanism. The flexible roller blind adjustment mechanism comprises an upper roller (22) movably mounted on the top surface of the internal storage transmission groove, a lower roller (23) movably mounted on the bottom surface of the internal storage transmission groove, and a roller blind film (24) sleeved on the outer sides of the upper roller (22) and the lower roller (23).

2. A folding door according to claim 1, characterized in that: The folding multi-link guide mechanism comprises an upper movable connecting rod (16) and a lower movable connecting rod (17) connected to the lower end of the upper movable connecting rod (16) via a central lateral assembly shaft, wherein the outer side of the central lateral assembly shaft is located inside the third longitudinal slide rail (6) and is movably sleeved with a central guide wheel (18).

3. A folding door according to claim 2, characterized in that: The upper end of the upper movable connecting rod (16) and the lower end of the lower movable connecting rod (17) are both coaxially fixedly connected to an integrally structured movable assembly bracket (19) that matches the top movable assembly bracket (14).

4. A folding door according to claim 1, characterized in that: The elastic tightening mechanism is an elastic extrusion limiting piece (25) fixed by bolts on the inner side surface of the internal receiving transmission groove.

5. A folding door according to claim 1, characterized in that: An LED fill light tube (26) for lighting fill light is fixedly connected to the inner side surface of the internal storage transmission groove.

6. A folding door according to claim 1, characterized in that: A top transmission shaft (29) having main drive gears (28) at both ends is movably mounted on the inner top surface of the top storage frame (2) via a top bracket (27), and the outer side surface of the main drive gear (28) is transmission-connected to a lateral lifting belt (30) for controlling the lifting of the foldable windshield door panel.

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