Automatic door opener

Abstract

The utility model provides an automatic door opener which comprises a driving piece, a transmission assembly, a rocker arm and an angle detection control assembly, and the input end of the transmission assembly is connected with the driving piece; one end of the rocker arm is connected with the output end of the transmission assembly, and the other end is connected with a door frame; the rocker arm is configured to be driven by the transmission assembly to rotate around the joint of the rocker arm and the output end of the transmission assembly so as to drive a door leaf to be opened and closed. The angle detection control assembly comprises an angle detection piece connected with the transmission assembly and a control piece electrically connected with the driving piece, the angle detection piece and the control piece are arranged in a magnetic induction mode so that angle signals can be synchronously output to the control piece at any time to accurately control the number of rotation turns of the driving piece, and therefore the door opening angle of the door leaf can be accurately controlled. The rocker arm can rotate within the range of 360 degrees, so that when the door is opened and closed by violent force, due to the fact that a stroke limiting device for the rocker arm does not exist, the situation that the transmission assembly structure is damaged due to over-stroke caused by the violent force opening and closing is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent home furnishing, in particular to a fully adaptable large-torque automatic door opener. Background Art

[0002] The door opener is a driver used to realize automatic opening or closing of the door. With the advancement of science and technology and the improvement of living standards, it is becoming more and more widely used: especially for some occasions with heavier doors, its role is particularly important.

[0003] Chinese patent CN112727301A discloses an automatic door opener. When the door needs to be opened, the power device controls the driving disk to rotate counterclockwise, and the two sets of gear segments are respectively meshed with the first gear and the transition gear. During the rotation of the driving disk, the first active pulley drives the first driven pulley to rotate, thereby controlling one of the door bodies to rotate and open; at the same time, the transition gear drives the second gear to rotate, and the second active pulley drives the second driven pulley to rotate, thereby controlling the other door body to rotate and open. Due to the setting of the transition gear, the two door bodies have different directions and can be opened to both sides respectively; when closing the door body, the power device controls the driving disk to rotate in the opposite direction by the same angle. The above method realizes the synchronous opening of the two door bodies, and only one power system is required.

[0004] However, the above-mentioned automatic door opener cannot accurately control the rotation angle of the door leaf during the process of opening or closing the door. Utility Model Content

[0005] Therefore, the technical problem to be solved by the present invention is that the automatic door opener in the prior art cannot accurately control the rotation angle of the door leaf, has low torque and poor noise experience during the process of opening or closing the door.

[0006] To this end, the utility model provides an automatic door opener, comprising:

[0007] Driving parts;

[0008] A transmission assembly, an input end of which is connected to the driving member;

[0009] A rocker arm, one end of which is connected to the output end of the transmission assembly, and the other end of which is suitable for connecting to the door frame; the rocker arm is configured to be driven by the transmission assembly to rotate around the connection between it and the output end of the transmission assembly to drive the door leaf to open and close;

[0010] The angle detection control component includes an angle detection component connected to the transmission component and a control component electrically connected to the driving component. The angle detection component and the control component are magnetically inductively configured to synchronously output angle signals to the control component at all times to accurately control the number of rotations of the driving component.

[0011] Optionally, the transmission assembly includes a first-stage helical gear shaft, a second-stage helical gear shaft, a third-stage helical gear shaft, a fourth-stage helical gear shaft and a fifth-stage gear transmission shaft that are meshed with each other, and a transmission member connected to the fifth-stage gear transmission shaft;

[0012] The first-stage helical gear shaft is connected to the output end of the driving member, and the fifth-stage gear transmission shaft is connected to the rocker arm via the transmission member.

[0013] Optionally, the driving member amplifies the torque through the transmission assembly.

[0014] Optionally, a slot is provided on the five-stage gear transmission shaft, and the end of the transmission member is clamped in the slot for fixation.

[0015] Optionally, the slot has at least two side walls arranged parallel to each other, and the end of the transmission member is correspondingly provided with a wall surface that fits with the two parallel side walls.

[0016] Optionally, the angle detection control component further includes:

[0017] Control box lower cover;

[0018] The control box upper cover is buckled with the control box lower cover to form a placement cavity inside the two;

[0019] The angle detection component and the control component are arranged in the placement cavity.

[0020] Optionally, it also includes:

[0021] Transmission box cover;

[0022] A transmission box lower box, which is buckled with the transmission box upper cover to form a placement cavity for placing the transmission assembly;

[0023] Wherein, a positioning structure is provided between the transmission box lower box and the control box upper cover.

[0024] Optionally, the positioning structure is a square groove arranged on the lower side of the transmission box lower box and a square protrusion arranged on the upper side of the control box upper cover and adapted to the square groove.

[0025] Optionally, the transmission box upper cover is provided with a through hole for connecting the rocker arm; the transmission box lower box is provided with through holes for connecting the angle detection control component and the driving member respectively;

[0026] The transmission box upper cover and the transmission box lower box are both provided with oil seals at their respective through holes.

[0027] The automatic door opener provided by the utility model has the following advantages:

[0028] 1. The utility model provides an automatic door opener, including a driving member, a transmission assembly, a rocker arm and an angle detection control assembly, wherein the input end of the transmission assembly is connected to the driving member; one end of the rocker arm is connected to the output end of the transmission assembly, and the other end of the rocker arm is suitable for connecting to a door frame; the rocker arm is configured to be driven by the transmission assembly to rotate around the connection between it and the output end of the transmission assembly to drive the door leaf to open and close; the angle detection control assembly includes an angle detection member connected to the transmission assembly, and a control member electrically connected to the driving member, wherein the angle detection member and the control member are magnetically inductively arranged to synchronously output angle signals to the control member at all times to accurately control the number of rotations of the driving member.

[0029] The automatic door opener of this structure is provided with an angle detection control component, in which an angle detection component is provided with an angle detection component connected to the transmission component, and a control component electrically connected to the drive component. The angle detection component is used to detect the rotation data of the transmission component connected thereto, and then transmit the rotation data to the control component in real time. The control component is electrically connected to the drive component so that the data is processed and used to control the number of rotations of the drive component, so as to achieve accurate control of the door opening angle.

[0030] 2. The utility model provides an automatic door opener, wherein the transmission assembly comprises a first-stage helical gear shaft, a second-stage helical gear shaft, a third-stage helical gear shaft, a fourth-stage helical gear shaft and a fifth-stage gear transmission shaft that mesh with each other, and a transmission member connected to the fifth-stage gear transmission shaft; the first-stage helical gear shaft is connected to the output end of the driving member, and the fifth-stage gear transmission shaft is connected to the rocker arm via the transmission member. The driving member amplifies the torque via the transmission assembly.

[0031] The automatic door opener of this structure realizes the amplification of torque by arranging a transmission assembly connected between the driving member and the rocker arm.

[0032] 3. The utility model provides an automatic door opener with a fully enclosed mechanical box body. Three transmission ports are equipped with oil seals to reduce noise and prevent oil. Specifically, the torque output port is sealed by a five-stage gear transmission shaft, a transmission box upper cover, and a first oil seal; the drive member end is sealed by the drive member output shaft, a transmission box lower box, and a third oil seal; the angle detection control component end is sealed by the transmission box lower box, a five-stage gear transmission shaft, and a second oil seal. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 A schematic diagram of the internal structure of the automatic door opener provided in an embodiment of the utility model;

[0035] Figure 2 It is an overall schematic diagram of the automatic door opener provided in the embodiment of the utility model;

[0036] Figure 3 A schematic structural view of a transmission member provided in an embodiment of the utility model;

[0037] Figure 4 A schematic structural view of a five-stage gear transmission shaft provided in an embodiment of the utility model;

[0038] Description of reference numerals:

[0039] 1- driving member;

[0040] 2- Transmission box lower box;

[0041] 3- Transmission box cover;

[0042] 4- Rocker arm;

[0043] 5-First-stage helical gear shaft;

[0044] 6-Secondary helical gear shaft;

[0045] 7-three-stage helical gear shaft;

[0046] 8-four-stage helical gear shaft;

[0047] 9-Five-stage gear transmission shaft;

[0048] 10- transmission parts;

[0049] 11-Compression screw;

[0050] 12-tightening spring washer;

[0051] 13-first oil seal;

[0052] 14- first bearing;

[0053] 15- rotating shaft;

[0054] 16-rotating shaft fixing seat;

[0055] 17-Control box cover;

[0056] 18-control parts;

[0057] 19-Control box lower cover;

[0058] 20- second oil seal;

[0059] 21- third oil seal;

[0060] 22- second bearing;

[0061] 23-Oil paper. DETAILED DESCRIPTION

[0062] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0063] In the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. In addition, the technical features involved in the different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0064] Example

[0065] This embodiment provides an automatic door opener, such as Figures 1 to 4 As shown, it includes a driving member 1, a transmission box lower box 2, a transmission box upper cover 3, a transmission assembly, a rocker arm 4 and an angle detection control assembly. The transmission box lower box 2 and the transmission box upper cover 3 are buckled together to form a placement cavity for placing the transmission assembly.

[0066] In this embodiment, the housing formed by the transmission box lower box 2 and the transmission box upper cover 3 is used to connect with the door leaf. The driving member 1 is connected with the input end of the transmission assembly, one end of the rocker arm 4 is connected with the output end of the transmission assembly, and the other end of the rocker arm 4 is suitable for connecting with the door frame; the rocker arm 4 is configured to be driven by the transmission assembly to rotate around the connection between it and the output end of the transmission assembly to drive the door leaf to open and close.

[0067] specific Figure 1 In the embodiment shown, the transmission assembly includes a first-stage helical gear shaft 5, a second-stage helical gear shaft 6, a third-stage helical gear shaft 7, a fourth-stage helical gear shaft 8 and a fifth-stage gear transmission shaft 9 that are meshed with each other, and a transmission member 10 connected to the fifth-stage gear transmission shaft 9. The first-stage helical gear shaft 5 is connected to the output end of the driving member 1, and the fifth-stage gear transmission shaft 9 is connected to the rocker arm 4 via the transmission member 10. The driving member 1 amplifies the torque through the transmission assembly.

[0068] During operation, the driving member 1 provides power, which acts on the rocker arm 4 after being transmitted by the transmission assembly, driving the rocker arm 4 to rotate around the connection between the rocker arm 4 and the transmission member 10, thereby driving the door leaf to open and close.

[0069] In the above structure, the rocker arm 4 can rotate within a range of 360°. Therefore, when the door is opened and closed violently, since there is no stroke limiting device for the rocker arm 4, the transmission component structure will not be damaged due to overtravel caused by violent opening and closing. The transmission component is a structure composed of a primary helical gear shaft 5, a secondary helical gear shaft 6, a tertiary helical gear shaft 7, a quaternary helical gear shaft 8 and a five-stage gear transmission shaft 9. It is a four-stage parallel helical gear structure with increased displacement coefficient, high strength, long life, combined with a high-torque motor (driving part 1), to meet the stable high-torque automatic door opening and closing function.

[0070] In this embodiment, a slot is provided on the five-stage gear transmission shaft 9 , and the end of the transmission member 10 is fixed in the slot to enable the five-stage gear transmission shaft 9 to drive the rocker arm 4 to rotate through the transmission member 10 .

[0071] Specific as Figure 3 and Figure 4 As shown, the slot has two side walls arranged in parallel with each other, and the end of the transmission member 10 is correspondingly provided with a wall surface that fits with the two parallel side walls, which serves as a matching surface for torque transmission.

[0072] During installation, if Figure 1 As shown, a threaded hole is provided at the bottom of the slot of the five-stage gear transmission shaft 9, and a through hole is provided along the axial direction of the transmission member 10, and the through hole is coaxially arranged with the threaded hole. During installation, a clamping screw 11 is inserted into the through hole of the transmission member 10 to fix the transmission member 10 in the slot of the five-stage gear transmission shaft 9. A tightening spring washer 12 is provided at the contact surface between the clamping screw 11 and the transmission member 10.

[0073] exist Figure 1 In the embodiment shown, in order to realize that the top end of the five-stage gear transmission shaft 9 is connected to the rocker arm 4 through the transmission member 10, a through hole for penetrating the top end of the five-stage gear transmission shaft 9 is provided on the transmission box upper cover 3. The top end of the five-stage gear transmission shaft 9 cooperates with the through hole at the transmission box upper cover 3, and a first bearing 14 is provided between the five-stage gear transmission shaft 9 and the through hole to reduce friction during rotation. In order to achieve a sealing effect, a first oil seal 13 is also provided between the five-stage gear transmission shaft 9 and the through hole, and the first oil seal 13 is arranged in close contact with the first bearing 14 and is located outside the first bearing 14.

[0074] Still see Figure 1, the driving end of the driving member 1 is extended into the lower box 2 of the transmission box and connected with the primary helical gear shaft 5. The lower box 2 of the transmission box is also provided with a through hole for penetrating the driving end of the driving member 1. As above, a second bearing 22 is provided between the driving end of the driving member 1 and the wall of the through hole on the lower box 2 of the transmission box. The driving end of the driving member 1 is also matched with the second bearing 22 in the box body formed by the lower box 2 of the transmission box and the upper cover 3 of the transmission box to improve the coaxiality between the output shaft of the driving member 1 and the primary helical gear shaft 5. In order to achieve sealing, a third oil seal 21 is provided between the driving end of the driving member 1 and the wall of the through hole on the lower box 2 of the transmission box. Among them, the housing formed by the driving member 1, the lower box 2 of the transmission box and the upper cover 3 of the transmission box can be installed by loosening or tightening four screws to achieve linkage after positioning.

[0075] It can be understood that the upper end of the first-stage helical gear shaft 5, as well as the second-stage helical gear shaft 6, the third-stage helical gear shaft 7 and the fourth-stage helical gear shaft 8 are all provided with a third bearing at their respective ends to reduce friction during rotation.

[0076] In order to further improve the sealing of the cavity between the transmission box upper cover 3 and the transmission box lower box 2, oil paper 23 is provided at the abutment between the transmission box upper cover 3 and the transmission box lower box 2 to improve the airtightness of the abutment between the transmission box upper cover 3 and the transmission box lower box 2.

[0077] In this embodiment, the angle detection control component includes an angle detection member connected to the transmission component, and a control member 18 electrically connected to the driving member 1. The angle detection member and the control member 18 are magnetically inductively arranged to synchronously output an angle signal to the control member 18 at all times to precisely control the number of rotations of the driving member 1. Specifically, the angle detection member is preferably an angle sensor, and the control member 18 is preferably a PCB board, and the angle sensor is arranged on the PCB board.

[0078] specific Figure 1In the illustrated embodiment, the angle detection control assembly further includes a control box upper cover 17 and a control box lower cover 19, and the angle detection member includes a rotating shaft 15 and a rotating shaft fixing seat 16. The control box upper cover 17 and the control box lower cover 19 are buckled to form a placement cavity inside the two, and the rotating shaft 15, the rotating shaft fixing seat 16 and the control member 18 are all placed inside the placement cavity between the control box upper cover 17 and the control box lower cover 19. The rotating shaft 15 is located at the lower side of the five-stage gear transmission shaft 9. The lower end of the five-stage gear transmission shaft 9 passes through the through hole on the lower box 2 of the transmission box and is connected to the rotating shaft 15, and the two keep synchronous movement. The rotating shaft fixing seat 16 is fixedly connected to the upper cover 17 of the control box by screws and other fasteners. A through hole for placing the rotating shaft 15 is set in the middle of the rotating shaft fixing seat 16. The bottom end of the rotating shaft 15 passes through the middle through hole of the rotating shaft fixing seat 16 and is set corresponding to the control member 18. Then the control member 18 can measure the number of rotations of the five-stage gear transmission shaft 9 through the rotating shaft 15. After transmitting this data to the control member 18, the number of rotations of the driving member 1 can be accurately controlled to control the opening and closing angle of the door leaf. Specifically, a magnet is provided on the rotating shaft 15, and the magnet senses the detection chip embedded in the control member 18, and an angle signal is given through magnetic induction. This is a direct application of existing components, so its working principle will not be described in detail here.

[0079] In order to improve the sealing performance of the cavity between the transmission box lower box 2 and the transmission box upper cover 3, a second oil seal 20 is provided between the lower end of the five-stage gear transmission shaft 9 and the through hole on the transmission box lower box 2.

[0080] In order to facilitate the installation of the angle detection control assembly, a positioning structure is provided between the transmission box lower box 2 and the control box upper cover 17 in this embodiment.

[0081] like Figure 1 As shown, the positioning structure is a square groove arranged on the lower side of the transmission box lower box 2 and a square protrusion adapted to the square groove arranged on the upper side of the transmission box upper cover 3. When installing, after the square protrusion and the square groove are positioned together, the installation can be completed by simply tightening the screws.

[0082] The automatic door opener provided in this embodiment combines software and hardware, and the system algorithm controls the opening angle. For doors with limited opening space, the opening angle can be adjusted accordingly: by adjusting the signal parameters of the control component 18 in the control box, the number of rotations of the drive component 1 is controlled, and then the five-stage gear transmission shaft 9 in the transmission assembly outputs the actual rotation angle to the transmission component 10, thereby controlling the opening angle of the rocker arm 4.

[0083] During operation, the door opening angle and the signal are transmitted synchronously at all times, and the signal is accurately collected and controlled: the transmission member 10, the rotating shaft 15 and the five-stage gear transmission shaft 9 are an integrated structure, that is, the upper end of the five-stage gear transmission shaft 9 outputs a large torque through the transmission member 10 (linking the rocker arm 4 to determine the actual door opening angle), and the lower end is linked to the rotating shaft 15 in the control box, and the angle signal is synchronously output to the control member 18 at all times for accurate signal transmission, collection and calculation.

[0084] The automatic door opener provided in this embodiment has a fully enclosed structure of the mechanical box body, and three transmission ports are equipped with oil seals to reduce noise and prevent oil. Specifically, the torque output port is sealed via the five-stage gear transmission shaft 9, the transmission box upper cover 3, and the first oil seal 13; the drive member 1 end is sealed by the drive member 1 output shaft, the transmission box lower box 2 and the third oil seal 21; the angle detection control component end is sealed by the transmission box lower box 2, the five-stage gear transmission shaft 9 and the second oil seal 20.

[0085] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. An automatic door opener, characterized in that: include: A driving member (1); A transmission assembly, the input end of which is connected to the driving member (1); A rocker arm (4), one end of which is connected to the output end of the transmission assembly, and the other end of which is suitable for being connected to the door frame; the rocker arm (4) is configured to be driven by the transmission assembly to rotate around the connection between it and the output end of the transmission assembly, so as to drive the door leaf to open and close; The angle detection control component comprises an angle detection component connected to the transmission component, and a control component (18) electrically connected to the drive component (1), wherein the angle detection component and the control component (18) are arranged by magnetic induction to synchronously output an angle signal to the control component (18) at all times to accurately control the number of rotations of the drive component (1).

2. The automatic door opener according to claim 1, characterized in that: The transmission assembly comprises a first-stage helical gear shaft (5), a second-stage helical gear shaft (6), a third-stage helical gear shaft (7), a fourth-stage helical gear shaft (8) and a fifth-stage gear transmission shaft (9) which are meshed with each other, and a transmission member (10) connected to the fifth-stage gear transmission shaft (9); The first-stage helical gear shaft (5) is connected to the output end of the driving member (1), and the fifth-stage gear transmission shaft (9) is connected to the rocker arm (4) via the transmission member (10).

3. The automatic door opener according to claim 2, characterized in that: The driving member (1) amplifies the torque through the transmission assembly.

4. The automatic door opener according to claim 2 or 3, characterized in that: The five-stage gear transmission shaft (9) is provided with a slot, and the end of the transmission member (10) is fixedly mounted in the slot.

5. The automatic door opener according to claim 4, characterized in that: The clamping groove has at least two side walls arranged in parallel with each other, and the end of the transmission member (10) is correspondingly provided with a wall surface that fits with the two parallel side walls.

6. The automatic door opener according to claim 1, characterized in that: The angle detection control component also includes: Control box lower cover (19); The control box upper cover (17) is buckled with the control box lower cover (19) to form a placement cavity inside the two; The angle detection component and the control component (18) are arranged in the placement cavity.

7. The automatic door opener according to claim 6, characterized in that: Also includes: Transmission box upper cover (3); A transmission box lower box (2) is buckled with the transmission box upper cover (3) to form a placement cavity for placing the transmission assembly; Wherein, a positioning structure is provided between the transmission box lower box (2) and the control box upper cover (17).

8. The automatic door opener according to claim 7, characterized in that: The positioning structure is a square groove arranged on the lower side of the transmission box lower box (2) and a square protrusion arranged on the upper side of the control box upper cover (17) and adapted to the square groove.

9. The automatic door opener according to claim 7, characterized in that: The transmission box upper cover (3) is provided with a through hole for connecting the rocker arm (4); the transmission box lower box (2) is provided with through holes for connecting the angle detection control component and the driving member (1) respectively; The transmission box upper cover (3) and the transmission box lower box (2) are both provided with oil seals at their respective through holes.

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