A down-turning transmission device for a shelter door
By combining components such as worm gear reducers, helical gear reducers, and wire rope coils, along with dual-input shaft motors and limit sensors, the problems of large installation space and difficult manual operation of the cabin door tilting transmission device have been solved, achieving the effects of space saving, convenient operation, and precise control.
Patent Information
- Application Number
- CN202521671691.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-07
- Publication Date
- 2026-07-10
- Estimated Expiration
- 2035-08-07
AI Technical Summary
The existing modular shelter door tilting transmission device requires a large installation space and lacks convenient manual operation function.
It adopts components such as worm gear reducer, helical gear reducer, wire rope coil and support arm, combined with dual input shaft motor and limit sensor to realize electric and manual drive, and the support ring and clamping soft pad support limit to ensure stable opening and closing of the door.
It reduces the installation space requirements of the device, provides convenient manual operation options, reduces the labor intensity of staff, and achieves precise door position control through limit sensors.
Smart Images

Figure CN224478824U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of modular cabin door transmission devices, specifically a downward-folding transmission device for modular cabin doors. Background Technology
[0002] The downward-tilting transmission device of the modular shelter door is the core drive and transmission system of the door body. It is mainly used to control the downward tilting and opening of the door body around the bottom hinge. Its function is to convert power into the rotational motion of the door body, while ensuring that the opening angle, stability and load capacity meet the usage requirements. It is a key component for the rapid response and flexible operation of the modular shelter.
[0003] Most existing modular doors use electric push rods and linkage mechanisms for their downward tilting mechanism, which require a large installation space.
[0004] Therefore, this utility model provides a downward tilting transmission device for a modular door to solve the above-mentioned problems. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides a downward-tilting transmission device for a modular door, which solves the aforementioned problems.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a downward-tilting transmission device for a modular cabin door, comprising a drive motor, a worm gear reducer fixedly connected to the bottom of the drive motor, a transmission shaft rotatably connected to the side wall of the worm gear reducer, a helical gear reducer fixedly connected to one end of the transmission shaft, a wire rope coil fixedly connected to the side wall of the transmission shaft, a guide wheel slidably connected to the wire rope coil via the wire rope, a support arm rotatably connected to the side wall of the guide wheel, a pull rod slidably connected to the inner wall of the support arm, a fixed base plate rotatably connected to the bottom of the pull rod, the top of the fixed base plate rotatably connected to the bottom of the support arm, and a support mechanism provided on the side wall of the transmission shaft.
[0007] Preferably, the support mechanism includes a clamping pad, the inner wall of which is rotatably connected to the side wall of the drive shaft, and a support ring is fixedly connected to the side wall of the clamping pad.
[0008] Preferably, a limiting baffle is fixedly connected to the side wall of the helical gear reducer, and the longitudinal section of the limiting baffle is rectangular.
[0009] Preferably, the drive motor is a dual-input shaft motor, and a rotating vertical rod is fixedly connected to the top of the drive motor.
[0010] Preferably, a rotating ring is fixedly connected to the side wall of the rotating vertical rod, and a rotating handle is fixedly connected to the top of the rotating ring.
[0011] Preferably, a first gear is fixedly connected to the side wall of the transmission shaft, a second gear is rotatably connected to the side wall of the first gear, a rotating rod is fixedly connected to the inner wall of the second gear, and multiple limit sensors are fixedly connected to the side wall of the rotating rod. Beneficial effects
[0012] This utility model provides a downward-tilting transmission device for a modular cabin door. Compared with the prior art, it has the following advantages:
[0013] (1) The downward-flipping transmission device of the cabin door, when the door needs to be opened, starts the drive motor, drives the transmission shaft to rotate through the worm gear reducer, drives the wire rope coil to rotate through the helical gear reducer to wind the wire rope, and when the wire rope coil winds the wire rope, it drives the support arm to move and open the door through the guide wheel. After the door is opened to the position, the support arm plays the role of moving the rope support point outward, thereby reducing the force acting on the door when closing the door. When the drive motor drives the transmission shaft to rotate, the transmission shaft is supported and limited by the cooperation of the support ring and the clamping soft pad. When the wire rope coil drives the wire rope to rotate, the wire rope is limited by the setting of the limit baffle to prevent the wire rope from scattering when rotating.
[0014] (2) The downward-flipping transmission device of this kind of cabin door, through the setting of dual input shaft motor, allows the staff to manually control the start of the drive motor by rotating the vertical rod, so that the equipment can be manually driven. When the staff needs to manually drive the drive motor, the cooperation of rotating ring and rotating handle makes it more convenient for the staff to drive the drive motor and reduce the labor intensity of the staff. When the drive motor drives the transmission shaft to rotate, the transmission shaft drives the first gear to rotate. The first gear drives the limit sensor to rotate through the second gear, corresponding to 90 degrees, 180 degrees, and the door is closed. The door is controlled by setting three limit sensors. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of a downward-tilting transmission device for a modular door according to this utility model;
[0016] Figure 2 This is a utility model Figure 1 Enlarged view of point A in the image;
[0017] Figure 3 This is a utility model Figure 1 Enlarged view of point B in the image;
[0018] Figure 4 This is a schematic diagram of the position and structure of the support arm of this utility model;
[0019] Figure 5 This is a schematic diagram of the position structure of the limit sensor of this utility model.
[0020] In the diagram: 1. Drive motor; 2. Worm gear reducer; 3. Drive shaft; 4. Support ring; 5. Clamping pad; 6. Helical gear reducer; 7. Limiting baffle; 8. Wire rope coil; 9. Fixed base plate; 10. Tie rod; 11. Support arm; 12. Guide wheel; 13. First gear; 14. Second gear; 15. Rotating rod; 16. Limit sensor; 17. Rotating vertical rod; 18. Rotating ring; 19. Rotating handle. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example
[0022] Please see Figure 1 - Figure 5 A downward-tilting transmission device for a modular cabin door includes a drive motor 1, a worm gear reducer 2 fixedly connected to the bottom of the drive motor 1, a drive shaft 3 rotatably connected to the side wall of the worm gear reducer 2, a helical gear reducer 6 fixedly connected to one end of the drive shaft 3, a wire rope coil 8 fixedly connected to the side wall of the drive shaft 3, a guide wheel 12 slidably connected to the wire rope coil 8 via the wire rope, a support arm 11 rotatably connected to the side wall of the guide wheel 12, a pull rod 10 slidably connected to the inner wall of the support arm 11, a fixed base plate 9 rotatably connected to the bottom of the pull rod 10, and a support mechanism provided on the side wall of the drive shaft 3.
[0023] It should be noted that when the door needs to be opened, the drive motor 1 is started. The drive motor 1 drives the transmission shaft 3 to rotate through the worm gear reducer 2. The transmission shaft 3 drives the wire rope coil 8 to rotate through the helical gear reducer 6 to wind up the wire rope. When the wire rope coil 8 winds up the wire rope, it drives the support arm 11 to move and open the door through the guide wheel 12. After the door is opened to the correct position, the support arm 11 moves the rope support point outward, thereby reducing the force acting on the door when closing it later.
[0024] In an optional embodiment: the support mechanism includes a clamping pad 5, the inner wall of the clamping pad 5 is rotatably connected to the side wall of the drive shaft 3, and a support ring 4 is fixedly connected to the side wall of the clamping pad 5.
[0025] It should be noted that when the drive motor 1 drives the transmission shaft 3 to rotate, the transmission shaft 3 is supported and limited by the cooperation of the support ring 4 and the clamping pad 5.
[0026] In an optional embodiment: a limiting baffle 7 is fixedly connected to the side wall of the helical gear reducer 6, and the longitudinal section of the limiting baffle 7 is rectangular.
[0027] It should be noted that when the wire rope coil 8 drives the wire rope to rotate, the limit baffle 7 is set to limit the wire rope and prevent it from scattering when rotating.
[0028] In an optional embodiment: the drive motor 1 is a dual-input shaft motor, and a rotating vertical rod 17 is fixedly connected to the top of the drive motor 1.
[0029] It should be noted that the dual-input shaft motor configuration allows operators to manually control the drive motor 1 by rotating the vertical rod 17, enabling the equipment to be manually driven.
[0030] In an optional embodiment: a rotating ring 18 is fixedly connected to the side wall of the rotating vertical rod 17, and a rotating handle 19 is fixedly connected to the top of the rotating ring 18.
[0031] It should be noted that when the staff needs to manually drive the drive motor 1, the cooperation between the rotating ring 18 and the rotating handle 19 makes it more convenient for the staff to drive the drive motor 1, reducing the labor intensity of the staff.
[0032] In an optional embodiment: a first gear 13 is fixedly connected to the side wall of the drive shaft 3, a second gear 14 is rotatably connected to the side wall of the first gear 13, a rotating rod 15 is fixedly connected to the inner wall of the second gear 14, and a plurality of limit sensors 16 are fixedly connected to the side wall of the rotating rod 15.
[0033] It should be noted that when the drive motor 1 drives the transmission shaft 3 to rotate, the transmission shaft 3 drives the first gear 13 to rotate, and the first gear 13 drives the limit sensor 16 to rotate through the second gear 14, corresponding to 90 degrees, 180 degrees, and the door being closed. The door is controlled by setting three limit sensors 16.
[0034] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.
[0035] When the door needs to be opened during operation, the drive motor 1 is started. The drive motor 1 drives the transmission shaft 3 to rotate through the worm gear reducer 2. The transmission shaft 3 drives the wire rope coil 8 to rotate through the helical gear reducer 6 to wind up the wire rope. When the wire rope coil 8 winds up the wire rope, it drives the support arm 11 to move and open the door through the guide wheel 12. After the door is opened to the correct position, the support arm 11 moves the rope support point outward, thereby reducing the force acting on the door when closing it later.
[0036] When the drive motor 1 drives the transmission shaft 3 to rotate, the transmission shaft 3 is supported and limited by the cooperation of the support ring 4 and the clamping pad 5.
[0037] When the wire rope coil 8 drives the wire rope to rotate, the limit baffle 7 is set to limit the wire rope and prevent it from scattering when rotating.
[0038] With the dual-input shaft motor configuration, the operator can manually control the drive motor 1 to start by rotating the vertical rod 17, thus enabling the equipment to be manually driven.
[0039] When the staff needs to manually drive the drive motor 1, the cooperation between the rotating ring 18 and the rotating handle 19 makes it more convenient for the staff to drive the drive motor 1 and reduces the labor intensity of the staff.
[0040] When the drive motor 1 drives the transmission shaft 3 to rotate, the transmission shaft 3 drives the first gear 13 to rotate. The first gear 13 drives the limit sensor 16 to rotate through the second gear 14, corresponding to 90 degrees, 180 degrees, and the door being closed. The door is controlled by setting three limit sensors 16.
[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A downward-tilting transmission device for a modular cabin door, comprising a drive motor (1), characterized in that: The drive motor (1) is fixedly connected to a worm gear reducer (2) at its bottom. The worm gear reducer (2) is rotatably connected to a drive shaft (3) on its side wall. One end of the drive shaft (3) is fixedly connected to a helical gear reducer (6). The drive shaft (3) is fixedly connected to a wire rope coil (8) on its side wall. The wire rope coil (8) is slidably connected to a guide wheel (12) via a wire rope. The guide wheel (12) is rotatably connected to a support arm (11) on its side wall. The inner wall of the support arm (11) is slidably connected to a pull rod (10). The bottom of the pull rod (10) is rotatably connected to a fixed base plate (9). The top of the fixed base plate (9) is rotatably connected to the bottom of the support arm (11). The drive shaft (3) is provided with a support mechanism on its side wall.
2. The downward-tilting transmission device for a modular door according to claim 1, characterized in that: The support mechanism includes a clamping pad (5), the inner wall of which is rotatably connected to the side wall of the drive shaft (3), and a support ring (4) is fixedly connected to the side wall of the clamping pad (5).
3. The downward-tilting transmission device for a modular door according to claim 1, characterized in that: The helical gear reducer (6) has a fixedly connected limit baffle (7) on its side wall, and the longitudinal section of the limit baffle (7) is rectangular.
4. The downward-tilting transmission device for a modular door according to claim 1, characterized in that: The drive motor (1) is a dual-input shaft motor, and a rotating vertical rod (17) is fixedly connected to the top of the drive motor (1).
5. The downward-tilting transmission device for a modular door according to claim 4, characterized in that: A rotating ring (18) is fixedly connected to the side wall of the rotating vertical rod (17), and a rotating handle (19) is fixedly connected to the top of the rotating ring (18).
6. The downward-tilting transmission device for a modular door according to claim 1, characterized in that: The transmission shaft (3) is fixedly connected to a first gear (13) on its side wall. The first gear (13) is rotatably connected to a second gear (14) on its side wall. The inner wall of the second gear (14) is fixedly connected to a rotating rod (15). The rotating rod (15) is fixedly connected to a plurality of limit sensors (16) on its side wall.