A quick emergency opening device for a motor home electric window

By designing a structure that combines a worm gear and permanent magnet with a manual rotating rod and sleeve pull rope, the RV's electric windows can be quickly opened in an emergency during a power outage. This solves the problem of unstable operation in emergency situations and ensures convenient escape and easy switching after power is restored.

CN224496186UActive Publication Date: 2026-07-14FULHAM (NINGBO) AUTOMOBILE TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FULHAM (NINGBO) AUTOMOBILE TECH CO LTD
Filing Date
2025-08-19
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing emergency window opening devices for motorhomes are unstable in emergency situations, making it difficult to start quickly and accurately, thus affecting escape efficiency.

Method used

A rapid emergency opening device was designed, which includes components such as a worm gear, worm wheel, permanent magnet, rotating rod, sleeve and pull rope. It uses a combination of motor drive and manual operation to achieve rapid opening and closing of the car window.

Benefits of technology

In the event of a power outage, the car windows can be opened quickly by manual operation without tools, providing a reliable escape guarantee, and the convenience of electronic operation is restored after power is restored.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224496186U_ABST
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Abstract

The utility model discloses a kind of motor car electric window quick emergency opening devices, it is related to the technical field of motor car electric window glass emergency escape, including shell, the shell is fixed with vehicle body, the left side bottom of shell is equipped with motor, the output end of motor is connected with worm, the right side of worm is engaged with worm wheel, the middle part of worm wheel is equipped with the power output shaft of electric window, the right side front end of shell is connected with rotating lever, the inside middle part of rotating lever is rotatably connected with sleeve, the outside of sleeve is wound with pull rope, the outside of pull rope is connected with clamping block, the clamping block is engaged with clamping groove. The motor car electric window quick emergency opening device is installed together with existing device in use process, in the emergency of power failure, vehicle window can be opened quickly and conveniently by manual operation, one-key trigger single-hand operation without tool can be provided, and fast, reliable emergency escape guarantee is provided for motor car user.
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Description

Technical Field

[0001] This utility model relates to the field of emergency escape technology for electric windows in automobiles, specifically a quick emergency opening device for electric windows in RVs. Background Technology

[0002] As a mobile space that integrates "accommodation + transportation", the window system of a motorhome not only serves the functions of lighting and ventilation, but is also an important escape route in emergencies. If the electric windows cannot be opened normally when the vehicle body is deformed or the circuit is damaged in a collision, it will hinder the escape of passengers.

[0003] To address the aforementioned deficiencies, existing technology (Chinese patent CN206035203U, published on March 22, 2017) describes a lifting drive device for an electric car window with an emergency unlocking mechanism. In practical use, the electric window regulator, consisting of a window lifting mechanism and a drive unit that drives the window lifting, is a known technology. Under normal operating conditions, it raises and lowers the window. At this time, the steel ball of the clutch unlocking mechanism engages with the inner wall of the worm gear via a drive keyway, and the inner wall of the steel ball contacts the outer wall of the pressure rod. When the car encounters an emergency... In certain situations, such as circuit failure or battery depletion, the pressure lever can be pressed. When the groove on the pressure lever aligns with the position of the steel ball, the steel ball slides into the groove, thus unlocking the window. At this time, the power output shaft and the worm gear can idle. With the glass's own weight or by manually applying a downward force, the glass will quickly slide down, opening the window. When the lever is released, the pressure lever moves outward under the action of the return spring, and the steel ball engages with the drive keyway again, without affecting the normal use of the electric window regulator next time.

[0004] The above solution operates the power window by aligning and misaligning the groove and the steel ball. However, it lacks stability during operation and relies on manual control to align the groove and the steel ball. This makes it difficult to quickly and accurately activate the emergency opening mechanism in an emergency when people are flustered, thus affecting its use. Utility Model Content

[0005] The purpose of this utility model is to provide a quick emergency opening device for motorhome electric windows, in order to solve the problem mentioned in the background art. In the process of use, the existing quick emergency opening devices for motorhome electric windows operate by aligning and misaligning the groove and the steel ball. However, the stability during operation is insufficient. It relies on manual control to align the groove and the steel ball, which makes it difficult to quickly and accurately activate the emergency opening mechanism in an emergency when people are flustered, thus affecting the use.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a quick emergency opening device for a motor vehicle window, comprising a housing, the housing being fixed to the vehicle body, a motor being installed at the bottom left side of the housing, a worm gear being connected to the output end of the motor, a worm wheel being meshed with the right side of the worm gear, the worm wheel being rotatably connected to the inside of the right side of the housing, and a power output shaft for the motor vehicle window being sleeved in the middle of the worm wheel;

[0007] A rotating rod is rotatably connected to the right front end of the housing. The rear side of the rotating rod is rotatably connected to the front middle of the power output shaft. A sleeve is rotatably connected to the inner middle of the rotating rod. A pull rope is wound around the outer side of the sleeve. A locking block is connected to the outside of the pull rope. The locking block is slidably connected to the right side outside of the rotating rod. The locking block engages with a locking groove, which is correspondingly opened on the inner wall of the power output shaft.

[0008] Furthermore, a magnetic ring is fixed on the contact surface between the middle part of the worm gear and the power output shaft, and the power output shaft is configured as a permanent magnet.

[0009] Furthermore, the rotating rod is configured as a "T" shaped structure, and the end of the rotating rod is rectangular, with the rectangular portion located inside the power output shaft.

[0010] Furthermore, a movable rod is slidably connected through the middle of the sleeve, the movable rod is located in front of the rotating rod, and a first spring is installed between the movable rod and the inside of the sleeve.

[0011] Furthermore, a protrusion is fixed to the outer side of the movable rod, and the protrusion is slidably connected in the spiral groove. The spiral groove is correspondingly opened on the inner wall of the sleeve, and the sleeve forms a rotating structure through the protrusion and the spiral groove.

[0012] Furthermore, the sleeve is pulled by a rope to synchronously extend and retract the locking block, and a second spring is installed between the locking block and the rotating rod.

[0013] Furthermore, the positions of the locking block and the locking slot are correspondingly set, and the rotating rod, through the locking block and the locking slot, forms an emergency opening component with the power output shaft.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This RV electric window quick emergency opening device is installed together with the existing device. In the event of a power outage, the window can be opened quickly and conveniently by manual operation. No tools are required and it can be activated with one button and operated with one hand, providing RV users with a fast and reliable emergency escape guarantee.

[0016] Furthermore, when there are no malfunctions, when the windows are activated, the motor is started, which drives the worm gear to rotate synchronously. The worm gear rotates synchronously with the meshing worm wheel. After the worm wheel is energized through the magnetic ring, it attracts the power output shaft, thereby driving the power output shaft to rotate synchronously and opening and closing the RV's electric windows.

[0017] Furthermore, when the power system malfunctions and the motor cannot operate, pressing the movable rod on the front side of the lever compresses the first spring and causes it to slide within the sleeve. Simultaneously, the sliding rod causes the protrusion to slide within the spiral groove, which in turn rotates the sleeve. Once the sleeve rotates, the pull rope is released. This releases the initially compressed second spring, pushing the locking block out and engaging with the slot on the inner wall of the power output shaft. This allows manual rotation of the lever to control the rotation of the power output shaft, enabling the opening and closing of the RV windows. In emergency situations involving power system failures, releasing the movable rod causes the second spring to automatically reset, separating the locking block from the slot. Once the power system is restored, the electric control can be directly switched, making operation convenient. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall novel structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the overall rear view structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the internal cross-sectional structure of the shell of this utility model;

[0021] Figure 4 This is a cross-sectional view of the worm and worm wheel of this utility model;

[0022] Figure 5 This is a schematic diagram of the front section structure of the connection between the power output shaft and the rotating rod of this utility model;

[0023] Figure 6 This is a cross-sectional view of the connection between the rotating rod, sleeve, and movable rod of this utility model.

[0024] In the diagram: 1. Housing; 2. Motor; 3. Worm; 4. Worm Gear; 5. Power Output Shaft; 6. Magnetic Ring; 7. Rotating Rod; 8. Sleeve; 9. Movable Rod; 10. First Spring; 11. Protrusion; 12. Spiral Groove; 13. Pull Rope; 14. Locking Block; 15. Second Spring; 16. Locking Slot. Detailed Implementation

[0025] 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.

[0026] Example 1: Please refer to Figures 1-3 The present invention provides the following technical solution: a quick emergency opening device for a motor vehicle window, comprising a housing 1, the housing 1 being fixed to the vehicle body, a motor 2 being installed at the bottom left side of the housing 1, a worm gear 3 being connected to the three-dimensional output end of the motor 2, a worm wheel 4 being meshed with the right side of the worm gear 3, the worm wheel 4 being rotatably connected to the inside of the right side of the housing 1, a power output shaft 5 for the motor vehicle window being sleeved in the middle of the worm wheel 4, a magnetic ring 6 being fixed on the contact surface between the middle of the worm wheel 4 and the power output shaft 5, and the power output shaft 5 being a permanent magnet.

[0027] When in use, the housing 1 is fixed to the vehicle body. When the window needs to be opened, the motor 2 is started. The motor 2 will drive the worm gear 3 to run. The worm gear 3 will drive the meshing worm wheel 4 to rotate synchronously. After the worm wheel 4 is energized through the magnetic ring 6, it will attract the power output shaft 5, thereby driving the power output shaft 5 to run synchronously, opening and closing the motor vehicle window of the RV.

[0028] Example 2:

[0029] Based on Embodiment 1, the movable rod 9 and the first spring 10 are also disclosed. Please refer to [reference needed]. Figures 4-6 As shown, its specific structure is as follows: A rotating rod 7 is rotatably connected through the right front end of the housing 1. The rear side of the rotating rod 7 is connected through the middle of the front side of the power output shaft 5. The rotating rod 7 is set as a "T" shaped structure. The end of the rotating rod 7 is set as a rectangle, and the rectangular part is located inside the power output shaft 5. A movable rod 9 is slidably connected through the middle of the sleeve 8. The movable rod 9 is located in front of the rotating rod 7. A first spring 10 is installed between the movable rod 9 and the inside of the sleeve 8.

[0030] During use, the rotating rod 7 is connected to the power output shaft 5. When the power system fails and the motor 2 cannot work, pressing the movable rod 9 on the front side of the rotating rod 7 will compress the first spring 10 and slide it in the sleeve 8.

[0031] Example 3:

[0032] Based on Embodiment 2, an emergency opening mechanism is also disclosed; please refer to [reference needed]. Figures 5-6As shown, its specific structure is as follows: A sleeve 8 is rotatably connected to the inner middle of the rotating rod 7. A pull rope 13 is wound around the outer side of the sleeve 8. A locking block 14 is connected to the outside of the pull rope 13. The locking block 14 is slidably connected to the right side of the rotating rod 7. The locking block 14 is engaged with the locking groove 16. The locking groove 16 is correspondingly opened on the inner wall of the power output shaft 5. A protrusion 11 is fixed on the outer side of the movable rod 9. The protrusion 11 is slidably connected in the spiral groove 12. The spiral groove 12 is correspondingly opened on the inner wall of the sleeve 8. The sleeve 8 forms a rotating structure through the protrusion 11 and the spiral groove 12. The sleeve 8 drives the locking block 14 to move in and out synchronously through the pull rope 13. A second spring 15 is installed between the locking block 14 and the rotating rod 7. The positions of the locking block 14 and the locking groove 16 are correspondingly set. The rotating rod 7 forms an emergency opening component with the power output shaft 5 through the locking block 14 and the locking groove 16.

[0033] During use, as the movable rod 9 slides, it causes the protrusion 11 to slide in the spiral groove 12, which in turn causes the sleeve 8 to rotate. After the sleeve 8 rotates, it loosens the pull rope 13. After the pull rope 13 is loosened, the second spring 15, which is initially compressed, pushes the locking block 14 to slide out and engage with the slot 16 on the inner wall of the power output shaft 5. Thus, the power output shaft 5 can be rotated manually by rotating the rotating rod 7, and the RV windows can be opened and closed. In case of emergency when the power system fails, after releasing the movable rod 9, the second spring 15 causes it to automatically reset, and the locking block 14 separates from the slot 16. After the power system is restored, the electric control can be switched directly, making the operation convenient.

[0034] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A quick emergency opening device for a motor vehicle window, comprising a housing (1), the housing (1) being fixed to the vehicle body, a motor (2) being installed at the bottom left side of the housing (1), a worm gear (3) being connected to the output end of the motor (2), a worm wheel (4) being meshed with the right side of the worm gear (3), the worm wheel (4) being rotatably connected to the inside of the right side of the housing (1), and a power output shaft (5) for the motor vehicle window being sleeved in the middle of the worm wheel (4). Its features are: A rotating rod (7) is rotatably connected to the right front end of the housing (1). The rear side of the rotating rod (7) is rotatably connected to the front middle of the power output shaft (5). A sleeve (8) is rotatably connected to the inner middle of the rotating rod (7). A pull rope (13) is wound around the outer side of the sleeve (8). A locking block (14) is connected to the outside of the pull rope (13). The locking block (14) is slidably connected to the right side outside of the rotating rod (7). The locking block (14) is engaged with a slot (16). The slot (16) is correspondingly opened on the inner wall of the power output shaft (5).

2. The RV electric window quick emergency opening device according to claim 1, characterized in that: A magnetic ring (6) is fixed on the contact surface between the middle part of the worm gear (4) and the power output shaft (5), and the power output shaft (5) is set as a permanent magnet.

3. The RV electric window quick emergency opening device according to claim 2, characterized in that: The rotating rod (7) is configured as a "T" shaped structure, and the end of the rotating rod (7) is rectangular, with the rectangular part located inside the power output shaft (5).

4. The RV electric window quick emergency opening device according to claim 3, characterized in that: A movable rod (9) is slidably connected through the middle of the sleeve (8). The movable rod (9) is located in front of the rotating rod (7). A first spring (10) is installed between the movable rod (9) and the inside of the sleeve (8).

5. The RV electric window quick emergency opening device according to claim 4, characterized in that: A protrusion (11) is fixed on the outside of the movable rod (9). The protrusion (11) is slidably connected in the spiral groove (12). The spiral groove (12) is correspondingly opened on the inner wall of the sleeve (8). The sleeve (8) forms a rotating structure through the protrusion (11) and the spiral groove (12).

6. The RV electric window quick emergency opening device according to claim 5, characterized in that: The sleeve (8) drives the locking block (14) to move in and out synchronously via the pull rope (13), and a second spring (15) is installed between the locking block (14) and the rotating rod (7).

7. The RV electric window quick emergency opening device according to claim 6, characterized in that: The positions of the locking block (14) and the locking slot (16) are correspondingly set, and the rotating rod (7) forms an emergency opening component with the power output shaft (5) through the locking block (14) and the locking slot (16).