Novel automatic door stopper

Abstract

The utility model relates to the technical field of automatic door stoppers, in particular to a novel automatic door stopper, which comprises a multi-stage gear box, a pinch plate, a motor and a control panel, a plurality of gears which are mutually and internally meshed are respectively and rotatably connected in the multi-stage gear box through a plurality of rotating shafts, and the head gear and the tail gear in the multi-stage gear box are divided into an input gear and an output gear. According to the utility model, the gap of the door slot can be automatically adjusted according to various environments, so that the door is tighter, free from sloshing, external vibration or wind blowing after being closed, free from swinging and free from sloshing sound, the door can be automatically sucked tightly after being closed and automatically withdrawn after being opened, the door can be conveniently and smoothly closed next time, meanwhile, the current situation can be kept after the door is closed and power is off, and the service life of the door is prolonged. And meanwhile, the manual adjustment function is achieved, the device is used under the power-off condition, manual adjustment is stepless, the device can be freely adjusted within a certain gap range, and the state can be kept when the device is adjusted to any position and loosened.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic door catches, in particular to a novel automatic door catch. Background Art

[0002] A door suction device is a device that sucks and holds a door in place after it is opened or closed, to prevent it from moving due to wind or contact. In daily life, due to certain needs, it brings convenience to life, but there is still room for improvement. The areas that need improvement are: it cannot fix the door in the closed state, and it cannot automatically adjust the gap between the doors according to various environments, so that the door cannot be tighter after it is closed. It will be affected by external vibrations or wind, and the door will sway and make shaking sounds. It also cannot automatically suck the door tight after closing, and it does not automatically return after opening, so it is inconvenient to close the door smoothly next time. Utility Model Content

[0003] The purpose of the utility model is to provide a novel automatic door stopper to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A novel automatic door stopper comprises a multi-stage gearbox, a pinch plate, a motor and a control panel, wherein the interior of the multi-stage gearbox is connected with a plurality of gears meshing with each other through a plurality of rotating shafts, wherein the first and last gears in the multi-stage gearbox are divided into an input gear and an output gear, and the multi-stage gearbox is connected to the pinch plate through a plurality of groups of support columns, and an inclined tongue triggering assembly is arranged between the pinch plate and the multi-stage gearbox, wherein the inclined tongue triggering assembly comprises a U-shaped moving plate guide rail symmetrically embedded in the outer shell of the multi-stage gearbox, wherein a sliding connection is arranged between the U-shaped moving plate guide rails and the moving plate, and a notch is opened at the center of the moving plate, wherein a side wall of the notch is provided A rack is provided, and a side surface of the rack with teeth extends to the bottom of the movable plate and is meshed with the output gear of the multi-stage gear box. A scratch-proof sheet is fixedly provided on the end surface of the movable plate, and a scratch-proof sheet notch is provided on the buckle plate corresponding to the scratch-proof sheet. A trigger sheet is movably connected to the side wall opposite to the inner cavity of the scratch-proof sheet through a rotating shaft, wherein the trigger sheet moves downward when pressed downward through the scratch-proof sheet notch, and a torsion spring for triggering reset is provided between the trigger sheet and the inner wall of the scratch-proof sheet, and the torsion spring is sleeved on the rotating shaft of the trigger sheet connected to the side wall of the scratch-proof sheet, and a non-contact magnetic field sensor for detecting the movement of the trigger sheet is provided on the control board.

[0006] As a preferred solution of the utility model, a control panel is arranged between the buckle plate and the multi-stage gear box and on the right side of the inclined tongue trigger assembly, and a motor is installed on the right side wall of the multi-stage gear box, wherein the driving shaft of the motor passes through the interior of the multi-stage gear box and is fixedly connected to a worm, and a worm wheel is meshingly connected to the worm, and a cross-groove cylinder is fixedly arranged at the end face axis center of the worm wheel, wherein the other end of the cross-groove cylinder passes through the multi-stage gear box and the control panel in sequence from bottom to top, and extends to the top of the control panel, and the bottom of the worm wheel is fixedly connected to the end face of the input gear inside the multi-stage gear box.

[0007] As a preferred solution of the utility model, a bearing is embedded on the side wall of the multi-stage gear box and corresponds to the driving shaft of the motor, wherein the driving shaft of the motor is rotatably connected to the inside of the bearing.

[0008] As a preferred solution of the utility model, the cross groove cylinder is connected to the multi-stage gear box and the control board respectively by rotational connection, and a through hole for a screwdriver to rotate the cross groove cylinder is provided on the buckle plate and corresponding to the cross groove cylinder.

[0009] As a preferred solution of the utility model, the non-contact magnetic field sensor is a Hall sensor, and the non-contact magnetic field sensor is electrically connected to a control board, and the control board is electrically connected to a motor through a wire, and the motor is a forward and reverse motor.

[0010] As a preferred solution of the utility model, the initial state of the trigger plate is to stick to the side wall of the buckle plate through the torsion spring, and the movable plate and the rack are an integrally formed structure.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] In the utility model, a new type of automatic door suction is designed, which can automatically adjust the gap of the door seam according to various environments, so that the door is tighter after closing, without shaking, and the door will not swing or make shaking sounds when it is vibrated or blown by external wind. The door can be automatically sucked tight after closing and automatically retreated after opening, so that it is convenient to close the door smoothly next time. At the same time, the door will maintain the status quo when the power is cut off after closing, so that no electric energy needs to be consumed to maintain the status. At the same time, there is a manual adjustment function, which can be used when there is no electricity. The manual adjustment is stepless and can be adjusted arbitrarily within a certain gap range. This status can be maintained by adjusting to any position and releasing it. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 For this utility model Figure 1 Schematic diagram of some structures;

[0015] Figure 3 For this utility model Figure 2 Schematic diagram of some structures;

[0016] Figure 4 For this utility model Figure 3 Schematic diagram of some structures;

[0017] Figure 5 For this utility model Figure 4 Structural diagram;

[0018] Figure 6 It is a schematic diagram of the top view structure of the utility model 2.

[0019] In the figure: 1. multi-stage gearbox; 2. buckle plate; 3. motor; 4. control board; 5. U-shaped moving plate guide; 6. moving plate; 7. rack; 8. anti-scratch plate; 9. trigger plate; 10. non-contact magnetic field sensor; 11. worm; 12. worm wheel; 13. cross-slot cylinder, 14. torsion spring. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0021] To facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0022] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may also be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used in this article includes any and all combinations of one or more related listed items.

[0024] For examples, see Figure 1-6 , the utility model provides a technical solution:

[0025] A novel automatic door stopper comprises a multi-stage gearbox 1, a pinch plate 2, a motor 3 and a control panel 4. The interior of the multi-stage gearbox 1 is connected with a plurality of gears meshing with each other through a plurality of rotating shafts, wherein the first and last gears in the multi-stage gearbox 1 are divided into an input gear and an output gear, and the multi-stage gearbox 1 is connected to the pinch plate 2 through a plurality of support columns, and an inclined tongue triggering assembly is arranged between the pinch plate 2 and the multi-stage gearbox 1, wherein the inclined tongue triggering assembly comprises a U-shaped moving plate guide rail 5 symmetrically embedded in the outer shell of the multi-stage gearbox 1, wherein a moving plate 6 is slidably connected between the U-shaped moving plate guide rail 5, and a notch is opened at the center of the moving plate 6, wherein a rack is arranged on the side wall of the notch 7, a side surface of the rack 7 with teeth extends to the bottom of the movable plate 6 and is meshedly connected to the output gear of the multi-stage gear box 1, a scratch-proof sheet 8 is fixedly arranged on the end surface of the movable plate 6, a scratch-proof sheet notch is opened on the buckle plate 2 and corresponds to the scratch-proof sheet 8, a trigger sheet 9 is movably connected to the side wall opposite to the inner cavity of the scratch-proof sheet 8 through a rotating shaft, wherein the trigger sheet 9 moves downward when pressed downward through the scratch-proof sheet notch, and a torsion spring 14 for resetting the trigger sheet 9 is arranged between the trigger sheet 9 and the inner wall of the scratch-proof sheet 8, the torsion spring 14 is sleeved on the rotating shaft of the trigger sheet 9 connected to the side wall of the scratch-proof sheet 8, and a non-contact magnetic field sensor 10 for detecting the movement of the trigger sheet 9 is arranged on the control board 4.

[0026] As a preferred solution of the utility model, a control board 4 is arranged between the buckle plate 2 and the multi-stage gear box 1 and on the right side of the inclined tongue trigger assembly, and a motor 3 is installed on the right side wall of the multi-stage gear box 1, wherein the driving shaft of the motor 3 passes through the interior of the multi-stage gear box 1 and is fixedly connected to a worm 11, and a worm wheel 12 is meshingly connected to the worm 11, and a cross groove cylinder 13 is fixedly arranged at the end face axis center of the worm wheel 12, wherein the other end of the cross groove cylinder 13 passes through the multi-stage gear box 1 and the control board 4 from bottom to top in sequence, and extends to the top of the control board 4, and the bottom of the worm wheel 12 is fixedly connected to the end face of the input gear inside the multi-stage gear box 1.

[0027] As a preferred embodiment of the present invention: a bearing is embedded on the side wall of the multi-stage gearbox 1 and corresponds to the driving shaft of the motor 3, wherein the driving shaft of the motor 3 is rotatably connected inside the bearing.

[0028] As a preferred embodiment of the utility model: the cross groove cylinder 13 is connected to the multi-stage gear box 1 and the control board 4 respectively in a rotational connection, and a through hole for a screwdriver to rotate the cross groove cylinder 13 is opened on the buckle plate 2 and corresponds to the cross groove cylinder 13. By rotating the cross groove cylinder 13 at the upper end of the worm wheel 12 with a screwdriver, the rotation of the worm wheel 12 will have a certain resistance to push the worm 11 to rotate, and at the same time, the other end will also drive the output gear to rotate.

[0029] As a preferred embodiment of the present utility model: the non-contact magnetic field sensor 10 is a Hall sensor, and the non-contact magnetic field sensor 10 is electrically connected to the control board 4, the control board 4 is electrically connected to the motor 3 through a wire, the motor 3 is a forward and reverse motor, by powering on, the control board 4 is used to control the operation of the non-contact magnetic field sensor 10 and the motor 3 respectively according to work requirements.

[0030] As a preferred embodiment of the present invention: the initial state of the trigger plate 9 is that it is attached to the side wall of the buckle plate 2 through the torsion spring, and the moving plate 6 and the rack 7 are an integrally formed structure.

[0031] The working process of the utility model is as follows: under normal conditions, the trigger piece 9 is attached to the outer wall of the gusset plate 2 under the action of the torsion spring. When the inclined tongue on the lock body is locked, it will contact the trigger piece 9 and press it. Figure 1 , causing the trigger piece 9 to move downward. At this time, the movement of the trigger piece 9 is detected by the non-contact magnetic field sensor 10. When the movement of the trigger piece 9 is detected, the non-contact magnetic field sensor 10 transmits the detected signal to the control board 4, that is, the control board 4 will sense the movement of the trigger piece 9, power the motor 3, and let the motor 3 rotate. The rotation of the motor 3 drives the worm 11 to rotate, and the rotation of the worm 11 drives the worm wheel 12 to rotate, thereby driving the multi-stage gear transmission in the multi-stage gear box 1, and finally making the output gear rotate. The output gear rotates through the rack 7 on the moving plate 6 to drive the moving plate 6 to move laterally along the guide groove of the U-shaped moving plate guide rail 5, that is, drive the anti-scratch sheet 8 to move laterally. When the resistance to the lateral movement of the anti-scratch sheet 9 is greater than the set value, the control board 4 stops powering the motor and maintains the existing state of the anti-scratch sheet 8, thereby realizing automatic adjustment of the door gap.

[0032] When unlocking, the inclined tongue leaves the trigger plate 9, and the trigger plate 9 is reset under the action of the torsion spring 14 and sticks to the buckle plate 2 again. After the control board 4 senses that the trigger plate 9 is reset, it gives the motor 3 a reverse voltage, and the motor 3 rotates in the reverse direction. Through the transmission of the multi-stage gear box transmission and other mechanisms, the anti-scratch plate 8 moves in the reverse direction, so that the door gap becomes larger, which is convenient for smooth closing of the door next time.

[0033] Since the resistance of the worm 11 to the reverse push is very large, the anti-scraping sheet 8 cannot be pushed in the reverse direction no matter where it stops, thereby achieving self-locking in any state.

[0034] In the power-off state, the cross groove cylinder 13 at the upper end of the worm wheel 12 is rotated by a screwdriver. The rotation of the worm wheel 12 will have a certain resistance to push the worm 11 to rotate, and the other end will also drive the output gear to rotate, thereby realizing manual adjustment of the automatic door suction in the power-off state, etc., where A represents the downward pressing pressure.

[0035] Although the 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

1. A novel automatic door stopper, comprising a multi-stage gear box (1), a buckle plate (2), a motor (3) and a control panel (4), characterized in that: The multi-stage gearbox (1) has a plurality of gears that are rotatably connected to each other through a plurality of rotating shafts, wherein the first and last gears in the multi-stage gearbox (1) are divided into an input gear and an output gear, and the multi-stage gearbox (1) is connected to the buckle plate (2) through a plurality of support columns, and an inclined tongue triggering assembly is arranged between the buckle plate (2) and the multi-stage gearbox (1), wherein the inclined tongue triggering assembly comprises a U-shaped moving plate guide rail (5) symmetrically embedded in the outer shell of the multi-stage gearbox (1), wherein a moving plate (6) is slidably connected between the U-shaped moving plate guide rails (5), and a notch is opened at the center of the moving plate (6), wherein a rack (7) is arranged on the side wall of the notch, and a side surface of the rack (7) with teeth extends to the moving plate (6) ), and meshingly connected to the output gear of the multi-stage gear box (1), an anti-scratch sheet (8) is fixedly arranged on the end surface of the movable plate (6), an anti-scratch sheet notch is opened on the buckle plate (2) and corresponds to the anti-scratch sheet (8), a trigger sheet (9) is movably connected to the side wall opposite to the inner cavity of the anti-scratch sheet (8) through a rotating shaft, wherein the trigger sheet (9) moves downward when pressed downward through the anti-scratch sheet notch, and a torsion spring (14) for resetting the trigger sheet (9) is arranged between the trigger sheet (9) and the inner wall of the anti-scratch sheet (8), the torsion spring (14) is sleeved on the rotating shaft of the trigger sheet (9) connected to the side wall of the anti-scratch sheet (8), and a non-contact magnetic field sensor (10) for detecting the movement of the trigger sheet (9) is arranged on the control panel (4).

2. The new automatic door stopper according to claim 1 is characterized by: A control panel (4) is provided between the buckle plate (2) and the multi-stage gear box (1) and on the right side of the latch trigger assembly. A motor (3) is installed on the right side wall of the multi-stage gear box (1), wherein a drive shaft of the motor (3) penetrates into the interior of the multi-stage gear box (1) and is fixedly connected to a worm (11), and a worm wheel (12) is meshingly connected to the worm (11). A cross-grooved cylinder (13) is fixedly provided at the axis center of the end face of the worm wheel (12), wherein the other end of the cross-grooved cylinder (13) penetrates the multi-stage gear box (1) and the control panel (4) in sequence from bottom to top and extends to the top of the control panel (4), and the bottom of the worm wheel (12) is fixedly connected to the end face of an input gear inside the multi-stage gear box (1).

3. The new automatic door stopper according to claim 2 is characterized in that: A bearing is embedded in the side wall of the multi-stage gear box (1) and corresponds to the drive shaft of the motor (3), wherein the drive shaft of the motor (3) is rotatably connected inside the bearing.

4. The new automatic door stopper according to claim 2 is characterized in that: The cross groove cylinder (13) is connected to the multi-stage gear box (1) and the control panel (4) in a rotational manner, and a through hole for a screwdriver to rotate the cross groove cylinder (13) is provided on the buckle plate (2) and corresponding to the cross groove cylinder (13).

5. The new automatic door stopper according to claim 2 is characterized in that: The non-contact magnetic field sensor (10) is a Hall sensor, and the non-contact magnetic field sensor (10) is electrically connected to a control board (4), and the control board (4) is electrically connected to a motor (3) via a wire, and the motor (3) is a forward and reverse motor.

6. The new automatic door stopper according to claim 2 is characterized in that: The initial state of the trigger plate (9) is that it is attached to the side wall of the buckle plate (2) via a torsion spring, and the movable plate (6) and the rack (7) are an integrally formed structure.

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