Sliding door with emergency door opening function

By introducing a movable rack and pinion mechanism and a lifting module into the sliding door, manual opening from the inside can be achieved, solving the safety hazard of the inability to open the door in an emergency in the existing technology and ensuring the safe evacuation of personnel in the event of a malfunction.

CN223647639UActive Publication Date: 2025-12-09CHINESE PEOPLES LIBERATION ARMY UNIT 96657
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Patent Information

Application Number
CN202423108147.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-16
Publication Date
2025-12-09
Estimated Expiration
2034-12-16

AI Technical Summary

Technical Problem

Existing rack and pinion sliding doors cannot be opened from the inside in case of malfunction, posing a safety hazard.

Method used

A movable rack and a lifting module are introduced into the drive mechanism of the sliding door. The movable rack moves up and down by manually operating the lifting module, causing it to disengage from the gear, thus enabling manual opening of the door.

Benefits of technology

This ensures that personnel can evacuate safely and quickly in the event of a malfunction, solves the problem of internal doors not being able to be opened in an emergency, and improves safety.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of sliding doors, in particular to a sliding door with an emergency door opening function, which comprises a door leaf, a door frame and a driving mechanism enabling the door leaf to move, the top and the bottom of the door leaf are both slidably connected with the door frame, the driving mechanism comprises a driving motor, and an output shaft of the driving motor is fixedly connected with a gear. The door leaf is provided with a movable rack matched with the gear, the movable rack is arranged in the horizontal direction, and the movable rack moves up and down along the door leaf through a lifting module. By arranging the movable rack, the lifting module is manually operated in the door leaf to drive the movable rack to move up and down, so that the movable rack is separated from the gear, internal manual door opening is achieved, entering and exiting of personnel are guaranteed, use safety of the sliding door under the emergency condition is guaranteed, and the personnel can safely and rapidly evacuate when a system breaks down; and the safety of personnel is effectively guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of sliding door technology, and in particular to a sliding door with an emergency opening function. Background Technology

[0002] Most existing rack and pinion sliding doors use a geared motor to drive a clutch, which rotates the gears and converts them into linear motion of the rack, thus achieving the sliding movement of the door panel. However, this type of drive mechanism is located on the outside of the door panel. In case of failure, the clutch can be unlocked mechanically from the outside, but the door cannot be opened in an emergency from the inside, creating a safety hazard. Utility Model Content

[0003] The purpose of this utility model is to provide a sliding door with an emergency opening function, which can solve the above-mentioned technical problems.

[0004] This utility model provides a sliding door with an emergency opening function, including a door leaf, a door frame, and a drive mechanism for moving the door leaf. The top and bottom of the door leaf are slidably connected to the door frame. The drive mechanism includes a drive motor, and the output shaft of the drive motor is fixedly connected to a gear. The door leaf is provided with a movable rack that matches the gear. The movable rack is arranged in a horizontal direction and moves up and down along the door leaf through a lifting module.

[0005] Furthermore, the top of the door leaf is provided with a slide bar, and the top of the door frame is provided with a slide groove that matches the slide bar. The slide bar is located in the slide groove and is slidably connected to it.

[0006] Furthermore, the bottom of the door leaf is provided with a pulley, and the bottom of the door frame is provided with a slide rail that matches the pulley.

[0007] Furthermore, the pulleys are spaced out in multiples.

[0008] Furthermore, the lifting module includes two guide rods fixedly connected to the side of the door leaf and spaced apart. A connecting plate is slidably connected to each guide rod, and the connecting plate is fixedly connected to the side of the movable rack. A screw jack, fixedly connected to the side of the door leaf, is located between the two guide rods. The screw of the screw jack passes through the connecting plate and is threadedly connected to it. The screw jack is a screw-nut jack; the screw rotates, and the nut (i.e., the connecting plate) on the screw moves axially.

[0009] Left and right guide rods are fixedly installed on the door leaf, and the movable rack can move up and down along the guide rods, effectively ensuring the stability of the rack's parallel movement.

[0010] Furthermore, a handwheel is fixedly provided at the end of the worm gear of the screw jack.

[0011] Furthermore, the two ends of the worm gear are located on the inner and outer sides of the door leaf, respectively.

[0012] Beneficial effects:

[0013] This utility model features a movable rack that moves up and down via a manual lifting module inside the door panel. This allows the rack to disengage from the gears, enabling manual opening of the door from the inside. This ensures safe entry and exit for personnel, guarantees the safety of the sliding door in emergency situations, and allows for the safe and rapid evacuation of personnel in case of system failure, effectively protecting their safety. Attached Figure Description

[0014] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram illustrating the structure of the slider and the groove of this utility model;

[0017] Figure 3 This is a schematic diagram illustrating the structure of the slide rail used in this utility model;

[0018] Figure 4 This is a side view of the structure of this utility model in operation.

[0019] Explanation of reference numerals in the attached diagram: 1-Door leaf, 2-Door frame, 3-Gear, 4-Moving rack, 5-Slide bar, 6-Slide groove, 7-Pulley, 8-Slide rail, 9-Guide rod, 10-Screw jack, 11-Rock arm, 12-Screw, 13-Handwheel, 14-Connecting plate, 15-Fixed rack, 16-Transfer drive motor and clutch, 17-Lifting module. Detailed Implementation

[0020] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Example 1

[0024] A sliding door with an emergency opening function includes a door leaf 1, a door frame 2, and a drive mechanism for moving the door leaf 1. The top and bottom of the door leaf 1 are slidably connected to the door frame 2. The drive mechanism includes a drive motor, and the output shaft of the drive motor is fixedly connected to a gear 3. The door leaf 1 is provided with a movable rack 4 that matches the gear 3. The movable rack 4 is arranged in a horizontal direction and moves up and down along the door leaf 1 through a lifting module 17.

[0025] The lifting module 17 includes two guide rods 9 fixedly connected to the side of the door leaf 1 and spaced apart. A connecting plate 14 is slidably connected to the guide rods 9. The connecting plate 14 is fixedly connected to the side of the movable rack 4. A screw jack 10 is provided between the two guide rods 9. The screw jack 10 is fixedly connected to the side of the door leaf 1. The screw 12 of the screw jack 10 passes through the connecting plate 14 and is threaded to it. The screw jack 10 is a screw-nut jack. The screw 12 rotates, and the nut on the screw 12 (i.e., the connecting plate 14) moves axially. Left and right guide rods are also fixedly provided on the door leaf. The movable rack can move up and down along the guide rods, effectively ensuring the stability of the rack's parallel movement. A handwheel 13 is fixedly provided at the end of the worm gear of the screw jack. A rocker arm 11 is fixedly provided on the surface of the handwheel 13. The two ends of the worm gear are located on the inner and outer sides of the door leaf, respectively.

[0026] The top of the door leaf 1 is provided with a sliding strip 5, the top of the door frame 2 is provided with a sliding groove 6 that matches the sliding strip 5, the sliding strip 5 is located in the sliding groove 6 and is slidably connected to it, the bottom of the door leaf 1 is provided with a pulley 7, the bottom of the door frame 2 is provided with a sliding rail 8 that matches the pulley 7, and multiple pulleys 7 are spaced apart.

[0027] Working and usage process:

[0028] It should be noted that the mechanism of this utility model is used as an emergency door in emergency situations, such as... Figure 4 As shown, the door leaf is relatively wide. The upper part of the door leaf is a movable rack 4, and the other part is fixedly connected to a fixed rack 15 on the side. Under normal conditions, when the door is opened and closed by electric means, the gears are driven to rotate by the translation drive motor and the clutch (drive motor linked clutch), thereby realizing the translational movement of the movable rack 4 and the fixed rack 15.

[0029] When the internal emergency door is opened, the lifting module is operated via the rocker arm 11, which drives the lead screw 12 to rotate. Simultaneously, the connecting plate 14 moves upward, causing the movable rack 4 to rise, thus disengaging the movable rack 4 from the gear 3. This means that a portion of the door leaf connected to the movable rack 4 is disengaged from gear control, allowing for manual emergency door opening from the inside. This emergency door opening allows for a doorway size large enough for one person to pass through. After personnel have evacuated from the inside, the gear can be disengaged from the drive motor by unlocking the external clutch, allowing the door leaf to fully open.

[0030] Any matters not covered in this utility model shall be governed by existing technologies.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A sliding door with an emergency opening function, characterized in that... The device includes a door leaf, a door frame, and a drive mechanism for moving the door leaf. The top and bottom of the door leaf are slidably connected to the door frame. The drive mechanism includes a drive motor, the output shaft of which is fixedly connected to a gear. The door leaf is provided with a movable rack that matches the gear. The movable rack is arranged in a horizontal direction and moves up and down along the door leaf via a lifting module.

2. The sliding door with emergency opening function according to claim 1, characterized in that, The top of the door leaf is provided with a sliding strip, and the top of the door frame is provided with a sliding groove that matches the sliding strip. The sliding strip is located in the sliding groove and is slidably connected to it.

3. The sliding door with emergency opening function according to claim 1, characterized in that, The bottom of the door leaf is provided with a pulley, and the bottom of the door frame is provided with a slide rail that matches the pulley.

4. The sliding door with emergency opening function according to claim 3, characterized in that, The pulleys are spaced in multiples.

5. The sliding door with emergency opening function according to claim 1, characterized in that, The lifting module includes two guide rods fixedly connected to the side of the door leaf and spaced apart. A connecting plate is slidably connected to the guide rod. The connecting plate is fixedly connected to the side of the movable rack. A screw jack is provided between the two guide rods and fixedly connected to the side of the door leaf. The screw of the screw jack passes through the connecting plate and is threadedly connected to it.

6. The sliding door with emergency opening function according to claim 5, characterized in that, A handwheel is fixedly installed at the end of the worm gear of the screw jack.

7. The sliding door with emergency opening function according to claim 6, characterized in that, The two ends of the worm gear are located on the inner and outer sides of the door leaf, respectively.