Electric folding door integrating limiting adjustment

Abstract

The utility model discloses an electric folding door integrating limiting adjustment, and relates to the technical field of folding doors, in particular to the electric folding door integrating limiting adjustment. Comprising a door plate, a hinge, a power supply, a fuse, a main controller, a wire harness, a motor, a speed reducer, a chain belt, a pulley, a reflection type sensor, a reflection plate, a reed switch and a neodymium magnet. According to the utility model, through double limiting protection of light path detection and magnetic induction, neodymium magnet adsorption closing retention and an optimized power transmission system, the problems of single limiting function, non-adjustability and insufficient safety protection in the prior art are fundamentally solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of folding door, specifically is a kind of integrated limit adjustment electric folding door. BACKGROUND

[0002] Electric folding door is widely used in residential, commercial and industrial sites due to its space-saving, convenient operation and other characteristics. However, the prior art has obvious deficiencies in the design of the limiting function. The precise control and stable holding function when the door panel runs to the open / close limit position is deficient in the following aspects. The existing hidden automatic folding door (publication number: CN208024194U) has some drawbacks and needs to be further improved.

[0003] The existing electric folding door in the prior art uses mechanical limiting device or simple electrical limiting device to realize limiting control, but has obvious deficiencies. The mechanical limiting device relies on fixed contacts for limiting, and the position cannot be flexibly adjusted. Long-term use can cause precision to decrease or trigger position to deviate due to mechanical wear, thereby causing the door panel to run out of position or exceed the limit. In addition, the traditional equipment only relies on a single limiting device to realize open / close control, lacks multiple protection mechanisms and redundant design, and once the device fails, the door panel may run out of limit, causing equipment damage or safety accidents. At the same time, it is also impossible to dynamically adjust the limiting point according to the door panel load or scene demand, which significantly limits its applicability and operation safety. Therefore, there is an urgent need for an integrated limiting adjustment electric folding door. SUMMARY

[0004] The main purpose of the utility model is to provide an integrated limiting adjustment electric folding door, which can effectively solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows: an integrated limiting adjustment electric folding door.

[0006] The door panel is internally provided with a hinge, and the door panel is provided with a power supply on one side. The power supply is provided with a fuse on one side. The fuse is provided with a main controller on one side. The main controller is provided with a wire harness above. The wire harness is provided with a motor at one end. The motor is provided with a speed reducer above. The speed reducer is provided with a chain belt on one side. The chain belt is provided with a pulley below.

[0007] The door body is internally provided with a reflective sensor, a reflective plate, a driving reed switch, a driven reed switch, a driving neodymium magnet and a driven neodymium magnet.

[0008] Preferably, the hinge is made of stainless steel, connected to the inner edge of the door panel, and fixed to the door panel by M6 bolts, and the inner edge of the door panel is provided with a hinge mounting hole with a hole diameter of 6.5mm.

[0009] Preferably, the motor is connected to the speed reducer through a flange, the flange is fixed to the output shaft of the motor by four M5 bolts, and the speed reducer is connected to the chain belt through a sprocket with 30 teeth.

[0010] Preferably, the reflective sensor and the reflective plate interact through an optical path, and a continuous optical path is formed when the door panel is in a closed state, the sensing distance of the reflective sensor is 30mm to 50mm, the closing signal of the optical path is triggered by the main controller to stop the motor, the perpendicular error of the optical path between the reflective sensor and the reflective plate is not more than ±2°, and the surface reflectivity of the reflective plate is greater than or equal to 85%.

[0011] Preferably, the active spring switch and the driven spring switch interact through a magnetic field, and the driven neodymium magnet triggers the driven spring switch when the door panel is in a closed state, the magnetic induction intensity of the driven neodymium magnet is 10mT to 15mT, and the induction range is 5mm to 10mm.

[0012] Preferably, the active neodymium magnet and the driven neodymium magnet are attracted to each other by magnetism, and when the door panel is in a completely closed state, the magnetic attraction range between the active neodymium magnet and the driven neodymium magnet is 50N to 80N, and the attraction distance is 2mm to 4mm; the surfaces of the active neodymium magnet and the driven neodymium magnet are treated by nickel plating.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] The device is composed of a door panel and a hinge to ensure the stability and flexibility of the door panel; the power supply and the fuse provide safe and reliable power support to prevent overload damage; the main controller connects the motor, the speed reducer, the chain belt and the pulley through a wire harness to realize precise power transmission and stable operation of the door panel.

[0015] The reflective sensor and the reflective plate detect through an optical path to provide high-precision limit control and ensure that the door panel is accurately stopped at a set position, and obstacles are detected to prevent safety accidents. The active spring switch and the driven spring switch cooperate with the active neodymium magnet and the driven neodymium magnet to realize magnetic induction limit and closing retention, provide a multiple protection mechanism, and prevent limit failure and door panel loosening. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is a whole structure schematic view of the utility model;

[0017] Fig. 2The overall structure of the utility model is shown in the top view.

[0018] Fig. 3 The overall structure flow chart of the utility model is shown in the figure.

[0019] In the figure: 1, door panel; 2, hinge; 3, power supply; 4, fuse; 5, main controller; 6, wiring harness; 7, motor; 8, speed reducer; 9, chain belt; 10, pulley; 1101, reflective sensor; 1102, reflector plate; 1201, active spring switch; 1202, driven spring switch; 1301, active neodymium magnet; 1302, driven neodymium magnet. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0021] In the description of the utility model, it should be pointed out that the orientation or position relationship indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0022] In the description of the utility model, it should be pointed out that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be broadly understood, for example, "connection" can be fixed connection, can also be detachable connection, or integral connection, can be mechanical connection, can also be electrical connection, can be directly connected, can also be indirectly connected through an intermediate medium, and can be the communication between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0023] EMBODIMENT

[0024] Please refer to Figs. 1-3 The utility model provides a technical scheme:

[0025] The door plate 1 is internally mounted with a hinge 2, one side of the door plate 1 is mounted with a power supply 3, one side of the power supply 3 is mounted with a fuse 4, one side of the fuse 4 is mounted with a main controller 5, the main controller 5 is mounted with a wire harness 6, one end of the wire harness 6 is mounted with a motor 7, the motor 7 is mounted with a speed reducer 8, one side of the speed reducer 8 is mounted with a chain belt 9, the chain belt 9 is mounted below a pulley 10;

[0026] The door plate 1 is internally mounted with a reflective sensor 1101, a reflective plate 1102, a main driven spring switch 1201, a driven spring switch 1202, a main driven neodymium magnet 1301, and a driven neodymium magnet 1302.

[0027] The folding door includes a door plate 1, which is flexibly connected by a hinge 2, the hinge 2 is fixed on the inner side edge of the door plate by M6 bolts and embedded in the mounting hole with a reserved hole diameter of 6.5mm to enhance stability and smooth operation. The driving force is provided by the power supply 3, the fuse 4, the main controller 5, the motor 7 connected by the wire harness 6, the motor 7 is fixed with the speed reducer 8 through the flange plate, and the chain belt 9 drives the pulley 10, the pulley is embedded in the guide rail to ensure the smooth operation of the door plate in the track. During the operation of the door plate, the reflective sensor 1101 and the reflective plate 1102 form a light path with an inductive distance of 30mm to 50mm, the light path closure signal triggers the motor 7 to stop running through the main controller 5, the vertical error of the light path is controlled within ±2°, and the limit accuracy is guaranteed. The component interacts with the pulley 10 to make the door plate stop accurately when reaching the set position.

[0028] The power transmission part drives the pulley 10 to run by the chain belt 9, the pulley and the guide rail adopt rolling contact design, the pulley has an outer diameter of 50mm and an inner diameter of 15mm, and the running resistance is reduced by ball bearings to ensure the smooth sliding of the door plate. The reflective sensor 1101 and the reflective plate 1102 are installed in the middle area of the guide rail to form a light path detection system, and the limit signal of the closed state is provided by allowing the error of the accurate light path alignment to be ≤±2°. In addition, the chain belt 9 is adjusted by the tensioning block, interacts with the sprocket of the speed reducer 8, provides power transmission, and ensures the reliable operation of the door plate.

[0029] The controller 5 is in series with the power supply 3 and the fuse 4, controlling the start and stop of the motor 7. The reflective sensor 1101 and the reflective plate 1102 interact through the light path to provide a switching signal, and the active spring switch 1201 and the driven spring switch 1202 cooperate with the active neodymium magnet 1301 and the driven neodymium magnet 1302 through magnetic field induction to provide a second layer of position limiting protection for the device. When the door panel runs to the closed state, the driven neodymium magnet 1302 induces the driven spring switch 1202, triggering the main controller signal to stop the motor 7 from running. At the same time, the active neodymium magnet 1301 and the driven neodymium magnet 1302 hold the door panel in the closed position through a magnetic attraction force of 50N to 80N, preventing loosening caused by external interference.

[0030] The light path detection provides the main limiting function, and its signal triggers the main controller to directly stop the motor from running. The magnetic induction signal serves as a redundant protection, and when the light path signal is not triggered, the main controller takes over the operation control through the time sequence priority logic, ensuring accurate stopping of the door body. Through the design of time window synchronization, the conflict rate of the two signals has been verified to be reduced to 0% through experiments.

[0031] Attractive force range 50N to 80N:

[0032] When the attractive force is less than 50N, the magnetic attraction force is not enough to resist the loosening of the door body caused by external force or vibration in the closed state.

[0033] When the attractive force is greater than 80N, the excessive attractive force will generate additional resistance to the folding operation of the door body, affecting the operation efficiency.

[0034] Through experiments, it is determined that a magnetic attraction force of about 70N achieves a balance between stable closure and operation efficiency.

[0035] Attractive distance 2mm to 4mm:

[0036] When the attractive distance is less than 2mm, the gap between the neodymium magnets is too small, which may cause mechanical interference during closure.

[0037] When the attractive distance is greater than 4mm, the magnetic attraction force decays significantly and cannot provide effective holding force.

[0038] The attractive force range is selected to be 50N to 80N, and the attractive distance is set to be 2mm to 4mm, among which the combination of 70N and 3mm achieves the best balance between door body closure stability and operation efficiency. Too small attractive force cannot stabilize the door body, and too large attractive force will increase the running resistance.

[0039] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. An integrated limit adjustment electric folding door, comprising a door panel (1), characterized in that: a hinge (2) is installed inside the door panel (1), a power supply (3) is installed on one side of the door panel (1), a fuse (4) is installed on one side of the power supply (3), a main controller (5) is installed on one side of the fuse (4), a wire harness (6) is installed above the main controller (5), a motor (7) is installed at one end of the wire harness (6), a speed reducer (8) is installed above the motor (7), a chain belt (9) is installed on one side of the speed reducer (8), and a pulley (10) is installed below the chain belt (9); a reflective sensor (1101) is installed inside the door panel (1), a reflector (1102) is installed inside the door panel (1), a main spring switch (1201) is installed inside the door panel (1), a driven spring switch (1202) is installed inside the door panel (1), a main neodymium magnet (1301) is installed inside the door panel (1), and a driven neodymium magnet (1302) is installed inside the door panel (1).

2. The integrated limit-adjustable electric folding door according to claim 1, characterized in that: The hinge (2) is made of stainless steel, connects the inner edge of the door panel (1), and is fixed to the door panel (1) by M6 bolts. The inner edge of the door panel (1) is provided with a hinge (2) mounting hole with a hole diameter of 6.5mm.

3. The integrated limit-adjustable electric folding door according to claim 1, characterized in that: The motor (7) is connected to the speed reducer (8) through a flange, which is fixed to the output shaft of the motor (7) by 4 M5 bolts. The speed reducer (8) is connected to the chain belt (9) through a sprocket, and the sprocket has 30 teeth.

4. The integrated limit-adjustable electric folding door according to claim 1, characterized in that: The reflective sensor (1101) and the reflector (1102) interact through an optical path, forming a continuous optical path when the door panel (1) is in a closed state. The sensing distance of the reflective sensor (1101) is 30mm to 50mm, and the closure signal of the optical path triggers the motor (7) to stop running through the main controller (5). The optical path of the reflective sensor (1101) and the reflector (1102) has a perpendicular error of not more than ±2°, and the reflectivity of the surface of the reflector (1102) is not less than 85%.

5. The integrated limit-adjustable electric folding door according to claim 1, characterized in that: The main spring switch (1201) and the driven spring switch (1202) interact through a magnetic field, and the driven neodymium magnet (1302) triggers the driven spring switch (1202) when the door panel (1) is in a closed state. The magnetic induction intensity of the driven neodymium magnet (1302) is 10mT to 15mT, and the induction range is 5mm to 10mm.

6. The integrated limit-adjustable electric folding door according to claim 1, characterized in that: The main neodymium magnet (1301) and the driven neodymium magnet (1302) are attracted to each other through magnetism. When the door panel (1) is in a fully closed state, the magnetic attraction force between the main neodymium magnet (1301) and the driven neodymium magnet (1302) is 50N to 80N, and the attraction distance is 2mm to 4mm. The surfaces of the main neodymium magnet (1301) and the driven neodymium magnet (1302) are treated by nickel plating.

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