Heavy-duty door operator drive mechanism

Abstract

The utility model relates to door opener technical field, especially heavy door opener drive mechanism, including drive motor, power transmission box and output rod, power transmission box is connected with drive motor, output rod is connected with power transmission box, the output shaft of drive motor is concentric connection has worm, power transmission box includes primary worm wheel subassembly, secondary gear component and tertiary gear component, primary worm wheel subassembly is engaged with the connection with worm, secondary gear component is engaged with the connection with primary worm wheel subassembly, tertiary gear component is engaged with the connection with secondary gear component, output rod is connected with tertiary gear component, primary worm wheel subassembly includes first transmission shaft, and first transmission shaft is fixedly connected with a worm wheel, and the worm wheel is detachably connected with first gear on the worm wheel, and the worm wheel is engaged with the connection with worm, and first gear is engaged with the connection with secondary gear component. Compared with the prior art, the heavy door opener drive mechanism of the utility model has the power clutch function, and when the power device cannot be used, the door can be easily opened and closed manually through the clutch function, which is beneficial to the user's use experience.

Description

[Technical Field]

[0002] This utility model relates to the field of door opener technology, and in particular to a heavy-duty door opener drive mechanism. [Background Technology]

[0004] Existing door opening power devices typically transmit power through simple gears and lack a power clutch function. When the power device is unavailable, it causes inconvenience in manually opening and closing the door, which is detrimental to the user experience. [Utility Model Content]

[0006] To overcome the above problems, this utility model proposes a heavy-duty door opener drive mechanism that can effectively solve the above problems.

[0007] The present invention provides a technical solution to the above-mentioned technical problems: a heavy-duty door opener drive mechanism, including a drive motor, a power transmission box, and an output rod. The power transmission box is connected to the drive motor, and the output rod is connected to the power transmission box. A worm gear is concentrically connected to the output shaft of the drive motor. The power transmission box includes a primary worm gear assembly, a secondary gear assembly, and a tertiary gear assembly. The primary worm gear assembly meshes with the worm gear, the secondary gear assembly meshes with the primary worm gear assembly, and the tertiary gear assembly meshes with the secondary gear assembly. The output rod is connected to the tertiary gear assembly. The primary worm gear assembly includes a first transmission shaft, on which a worm gear is fixedly connected. A first gear is detachably connected to the worm gear, meshing with the worm gear. The first gear meshes with the secondary gear assembly.

[0008] Preferably, the bottom of the worm gear has a groove that matches the first gear, the center of the first drive shaft has a through hole, a pressure rod passes through the through hole, and a return spring is provided between the worm gear and the first gear.

[0009] Preferably, the power transmission box includes a housing, the first-stage worm gear assembly, the second-stage gear assembly and the third-stage gear assembly are disposed inside the housing, and one end of the pressure rod extends out from the housing.

[0010] Preferably, a triangular key rotating rod is provided on the outside of the outer shell of the box, and a clearance groove is formed on the triangular key rotating rod, which is located above the end of the pressure rod.

[0011] Preferably, the end of the triangular key lever is provided with a triangular protrusion.

[0012] Preferably, an absolute encoder is provided at the end of the output rod.

[0013] Preferably, the drive motor is a low-voltage DC 24V motor with a power of 400W.

[0014] Preferably, the reduction ratio of the power transmission box is 1:762.

[0015] Compared with the prior art, the heavy-duty door opener drive mechanism of this utility model transmits power through worm gears and multi-stage gears. The special structural design of the first-stage worm gear assembly enables it to have a power clutch function. When the power unit is unavailable, the door can be easily opened and closed manually through the clutch function, which is beneficial to the user experience. [Attached Image Description]

[0017] Figure 1 This is a perspective view of the heavy-duty door opener drive mechanism of this utility model;

[0018] Figure 2 This is a diagram showing the internal structure of the heavy-duty door opener drive mechanism of this utility model;

[0019] Figure 3 This is a perspective view of the first-stage worm gear assembly of the heavy-duty door opener drive mechanism of this utility model.

Detailed Implementation Methods

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of this utility model.

[0022] It should be noted that in this embodiment of the invention, all directional indications (such as up, down, left, right, front, back, etc.) are limited to relative positions on the specified view, rather than absolute positions.

[0023] Furthermore, in this utility model, the use of terms such as "first," "second," etc., is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0024] Please see Figures 1 to 3 The heavy-duty door opener drive mechanism of this utility model includes a drive motor 10, a power transmission box 20 and an output rod 30. The power transmission box 20 is connected to the drive motor 10, and the output rod 30 is connected to the power transmission box 20.

[0025] The output shaft of the drive motor 10 is concentrically connected to a worm gear 11. The power transmission box 20 includes a first-stage worm gear assembly 21, a second-stage gear assembly 22, and a third-stage gear assembly 23. The first-stage worm gear assembly 21 is meshed with the worm gear 11, the second-stage gear assembly 22 is meshed with the first-stage worm gear assembly 21, the third-stage gear assembly 23 is meshed with the second-stage gear assembly 22, and the output rod 30 is connected to the third-stage gear assembly 23.

[0026] The first-stage worm gear assembly 21 includes a first drive shaft 211, on which a worm gear 212 is fixedly connected. A first gear 214 is detachably connected to the worm gear 212. The worm gear 212 meshes with the worm 11, and the first gear 214 meshes with the second-stage gear assembly 22.

[0027] During operation, the drive motor 10 drives the worm gear 11 to rotate, which in turn drives the worm wheel 212 to rotate. The worm wheel 212 then drives the first gear 214 to rotate, which in turn drives the second-stage gear assembly 22 to rotate. The second-stage gear assembly 22 then drives the third-stage gear assembly 23 to rotate, and the third-stage gear assembly 23 finally drives the output rod 30 to rotate. The output rod 30 is connected to the door body via two rotating sections to open and close the door. When the drive mechanism malfunctions, the first gear 214 can be separated from the worm wheel 212, thus disconnecting the power transmission chain and allowing for easy manual opening and closing of the door.

[0028] The heavy-duty door opener drive mechanism of this utility model transmits power through a worm gear and multi-stage gears. The special structural design of the first-stage worm gear assembly 21 enables it to have a power clutch function. When the power unit is unavailable, the door can be easily opened and closed manually through the clutch function, which is beneficial to the user experience.

[0029] The worm gear 212 has a slot at its bottom that matches the first gear 214. The first drive shaft 211 has a through hole at its center, through which a pressure rod 213 passes. A return spring 215 is provided between the worm gear 212 and the first gear 214. When the pressure rod 213 presses down on the first gear 214, the first gear 214 can disengage from the worm gear 212, thereby disconnecting the power transmission chain. After the pressing stops, the first gear 214 re-enters the slot of the worm gear 212 under the restoring force of the return spring 215, thus achieving connection.

[0030] The power transmission box 20 includes a box shell 29, the first-stage worm gear assembly 21, the second-stage gear assembly 22 and the third-stage gear assembly 23 are disposed inside the box shell 29, and one end of the pressure rod 213 extends out from the box shell 29.

[0031] The outer shell 29 of the box is provided with a triangular key rotating rod 50. A clearance groove 51 is opened on the triangular key rotating rod 50. The clearance groove 51 is located above the end of the pressure rod 213. The position of the clearance groove 51 can be adjusted by rotating the pressure rod 213. When the end of the pressure rod 213 is located in the clearance groove 51, the pressure rod 213 is in a state of no pressure. When the triangular key rotating rod 50 is rotated so that the rod without the clearance groove 51 presses against the pressure rod 213, it is equivalent to pressing the clutch.

[0032] The end of the triangular key lever 50 is provided with a triangular protrusion 52 for turning the key.

[0033] An absolute encoder 40 is provided at the end of the output rod 30, making rotation positioning more precise.

[0034] The drive motor 10 is a low-voltage DC 24V motor with a power of 400W.

[0035] The reduction ratio of the power transmission box 20 is 1:762.

[0036] Compared with the prior art, the heavy-duty door opener drive mechanism of this utility model transmits power through worm gears and multi-stage gears. The special structural design of the first-stage worm gear assembly 21 enables it to have a power clutch function. When the power unit is unavailable, the door can be easily opened and closed manually through the clutch function, which is beneficial to the user experience.

[0037] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any modifications, equivalent substitutions and improvements made within the concept of the present utility model should be included within the patent protection scope of the present utility model.

Claims

1. A heavy-duty door opener drive mechanism, characterized in that, It includes a drive motor, a power transmission box, and an output rod, wherein the power transmission box is connected to the drive motor, and the output rod is connected to the power transmission box; The output shaft of the drive motor is concentrically connected to a worm gear. The power transmission box includes a first-stage worm gear assembly, a second-stage gear assembly, and a third-stage gear assembly. The first-stage worm gear assembly is meshed with the worm gear, the second-stage gear assembly is meshed with the first-stage worm gear assembly, the third-stage gear assembly is meshed with the second-stage gear assembly, and the output rod is connected to the third-stage gear assembly. The first-stage worm gear assembly includes a first drive shaft, on which a worm gear is fixedly connected. A first gear is detachably connected to the worm gear. The worm gear meshes with a worm, and the first gear meshes with a second-stage gear assembly.

2. The heavy-duty door opener drive mechanism as described in claim 1, characterized in that, The bottom of the worm gear has a groove that matches the first gear. The center of the first drive shaft has a through hole, and a pressure rod passes through the through hole. A return spring is provided between the worm gear and the first gear.

3. The heavy-duty door opener drive mechanism as described in claim 2, characterized in that, The power transmission box includes a housing, the first-stage worm gear assembly, the second-stage gear assembly and the third-stage gear assembly are disposed inside the housing, and one end of the pressure rod extends out from the housing.

4. The heavy-duty door opener drive mechanism as described in claim 3, characterized in that, The outer shell of the box is provided with a triangular key rotating rod, and a clearance groove is opened on the triangular key rotating rod, which is located above the end of the pressure rod.

5. The heavy-duty door opener drive mechanism as described in claim 4, characterized in that, The end of the triangular key lever is provided with a triangular protrusion.

6. The heavy-duty door opener drive mechanism as described in claim 1, characterized in that, An absolute encoder is provided at the end of the output rod.

7. The heavy-duty door opener drive mechanism as described in claim 1, characterized in that, The drive motor is a low-voltage DC 24V motor with a power of 400W.

8. The heavy-duty door opener drive mechanism as described in claim 1, characterized in that, The reduction ratio of the power transmission box is 1:762.

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