Sectional type electric sliding door

By designing a segmented electric sliding door, the rack and pinion mechanism, along with a transmission roller, drives the rack to move horizontally. This solves the problems of jamming, noise, and stability associated with existing electric sliding doors, enabling smooth opening and closing and stable movement of the sliding door, while reducing maintenance costs.

CN224173930UActive Publication Date: 2026-04-28青岛福大科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
青岛福大科技有限公司
Filing Date
2025-05-19
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Existing electric sliding doors suffer from problems such as jamming, excessive noise, uneven speed, and door shaking in terms of smooth opening and closing and stable movement. Conventional maintenance and component replacement methods are costly and cannot fundamentally solve the problems of uneven guide rails or uneven weight distribution of the door.

Method used

It adopts a segmented design, including an upper door frame, rail frame, guide groove and segmented guiding components. It uses components such as rack, connecting seat, support frame, wheel seat and fixed seat to drive the rack to move horizontally through the transmission toothed roller, ensuring that the wheel seat slides synchronously with the guide groove, and the movable door and fixed door form a sealed connection, which enhances the movement efficiency and stability.

Benefits of technology

It enables smooth opening and closing and stable movement of sliding doors, improves the efficiency and stability of door movement during operation, reduces mechanical wear and noise, and lowers maintenance costs.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224173930U_ABST
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Abstract

The utility model provides a sectional type electric sliding door which comprises an upper door pocket, a sectional guide moving part and a transmission connector, two sets of rail frames used for conducting sliding guiding on a movable door are arranged in the upper door pocket, a first guide groove used for guiding the movable door is formed in the rail frame at the rear end, and a second guide groove used for conducting sliding guiding on the movable door is formed in the upper door pocket. Compared with the prior art, the movable door has the advantages that when the movable door is started, the motor drives the transmission tooth roller to rotate, the meshing rack drives the sectional guide components to horizontally move, the wheel seat synchronously slides along the first guide groove and the second guide groove, and the movable door is driven to horizontally move. The fixed seat transmits motion to the movable door to achieve translation, the movable door and the fixed door form sealing butt joint through an inclined section, the transmission tooth roller is designed to be overlong so that effective transmission in the whole process can be guaranteed, the supporting frame can keep the embedded state of the wheel seat and the guide groove in the operation process, and therefore the moving efficiency of the upper side and the lower side of the movable door is guaranteed.
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Description

Technical Field

[0001] This utility model belongs to the technical field of electric sliding doors, and relates to a segmented electric sliding door. Background Technology

[0002] The main shortcomings of existing electric sliding doors in terms of smooth opening and closing and stable movement are stuttering, noise, uneven speed, and door wobbling. These shortcomings arise from various causes, including wear and tear on mechanical parts, uneven guide rails, unstable motor performance, sensor malfunctions, and uneven weight distribution. For example, uneven guide rails can cause the door to stutter and wobble during movement; an aging or underpowered motor can result in uneven door speed; sensor malfunctions can affect the automatic opening and closing function, causing the door to stop or move unnecessarily. Conventional solutions include regular maintenance and replacement of worn parts. However, these methods also have drawbacks. While regular maintenance can prevent and reduce malfunctions, it requires continuous manpower and time costs; replacing worn parts can solve stuttering and noise problems, but it is costly and does not fundamentally address uneven guide rails or uneven weight distribution. Therefore, there is an urgent need for a segmented electric sliding door to solve these problems. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a segmented electric sliding door to solve the problems mentioned in the background technology.

[0004] This utility model is achieved through the following technical solution: a segmented electric sliding door, including: an upper door frame and a transmission joint, wherein the upper door frame is provided with two sets of rails for guiding the sliding of the movable door, and the rear rails are provided with a guide groove 1 for guiding the movable door, and the upper ends of the guide groove 1 and the guide groove 2 are provided with a set of segmented guiding components for controlling the sliding of the movable door.

[0005] The segmented guiding component includes a rack, a connecting seat, a support frame, wheel seats, and a fixed seat. The rack has a cross-sectional length greater than that of the movable door. A set of limiting blocks is provided on both the left and right sides of the rack to restrict its movement range. A set of connecting seats is provided at the lower ends of both the left and right sides of the rack to connect and fix to the support frame. The connecting seats are connected and fixed to the support frame by bolts. A set of wheel seats is provided at the lower end of the support frame to move and engage with guide groove one and guide groove two. The wheel seat on the left side is movable and engaged with guide groove one.

[0006] In a preferred embodiment, the wheel seat on the right side is movably fitted into the guide groove. Each set of wheel seats has a set of fixing seats at its lower end for fixed connection with the movable door. The fixing seats are fixed to the movable door by bolts.

[0007] As a preferred embodiment, the right side of the movable door and the left side of the fixed door are provided with inclined cross-sections of splicing structures, and the upper end of the rack is provided with a set of transmission toothed rollers for driving its left and right displacement. The length of the transmission toothed rollers in plan view is 2.5 times the length of the rack.

[0008] In a preferred embodiment, the transmission toothed roller is provided with a set of support seats on its front and rear sides for limiting its position. A set of limit bearings is provided at the connection between the support seats and the transmission toothed roller. A set of transmission joints for connecting with an external motor is provided on the front side of the transmission toothed roller. Before actual use, check the alignment of the inner rail frame of the upper door frame with the guide groove. Confirm that the transmission toothed roller is connected to the external motor through the limit bearings of the support seats and the transmission joint. When started, the motor drives the transmission toothed roller to rotate. The meshing rack drives the segmented guide component to move horizontally. The limit blocks on both sides of the rack limit the stroke range. The connecting seat rigidly connects the rack to the support frame. The wheel seat slides synchronously along the guide grooves one and two. The fixed seat transmits the motion to the movable door to achieve translation. The movable door and the fixed door form a sealed connection through the inclined cross-section. The extra-long design of the transmission toothed roller can ensure effective transmission throughout the entire process. During operation, its support frame can maintain the engagement state of the wheel seat and the guide groove. At the same time, the lower door frame assists in bearing the weight, thereby ensuring the moving efficiency of the upper and lower sides of the movable door.

[0009] As a preferred embodiment, the front rail frame is provided with a second guide groove. The first guide groove and the second guide groove are of the same specifications and are arranged in parallel. Both the first guide groove and the second guide groove are provided with a set of wheel grooves for engaging with the wheel seat in a movable limiting manner.

[0010] In a preferred embodiment, both the first guide groove and the second guide groove are provided with arc-shaped guide openings on their left sides. The depth of the arc-shaped guide openings is consistent with the thickness of the fixed door, and the distance between the first guide groove and the second guide groove is consistent with the thickness of the fixed door. A set of fixed doors is provided on the right side of the movable door.

[0011] In a preferred embodiment, the lower end of the sliding door is provided with a set of lower door sleeves for supporting its lower end. At the connection between the lower door sleeve and the sliding door, there is a set of ground rail grooves for guiding the movement of the sliding door. The top view cross-section of the ground rail groove has the same structural dimensions as the top view cross-section of the guide groove. In actual use, the sliding door is pushed to the side of the fixed door, so that the wheel seat is accurately embedded into the arc-shaped guide opening of the guide groove. After the motor is started, the transmission toothed roller drives the rack to move. The connecting seat pushes the support frame so that the wheel seat slides synchronously along the double guide grooves. The ground rail groove and the lower door sleeve work together to guide the lower edge of the sliding door, maintaining the vertical stability of the door body. During operation, the wheel seat moves linearly in the wheel groove. The depth of the arc-shaped guide opening matches the thickness of the fixed door to achieve seamless connection. The parallel layout of the double guide grooves ensures the translation accuracy, thereby ensuring smooth opening and closing of the sliding door and effectively improving the stability of the sliding door during movement.

[0012] After adopting the above technical solution, the beneficial effects of this utility model are as follows: when starting, the motor drives the transmission toothed roller to rotate, the meshing rack drives the segmented guide component to move horizontally, the limit blocks on both sides of the rack limit the stroke range, the connecting seat rigidly connects the rack and the support frame, the wheel seat slides synchronously along the first and second guide grooves, the fixed seat transmits the motion to the movable door to achieve translation, the movable door and the fixed door form a sealed docking through the inclined cross-section, the extra-long design of the transmission toothed roller can ensure effective transmission throughout the entire process, during operation its support frame can maintain the engagement state of the wheel seat and the guide groove, and at the same time the lower door sleeve assists in bearing the weight, thereby ensuring the moving efficiency of the upper and lower sides of the movable door;

[0013] In practical use, the sliding door is pushed to the side of the fixed door, so that the wheel seat is accurately embedded into the arc-shaped guide groove. After the motor is started, the transmission toothed roller drives the rack to move. The connecting seat pushes the support frame so that the wheel seat slides synchronously along the double guide groove. The ground rail groove and the lower door frame work together to guide the lower edge of the sliding door, maintaining the vertical stability of the door body. During operation, the wheel seat moves linearly in the wheel groove. The depth of the arc-shaped guide groove matches the thickness of the fixed door to achieve seamless connection. The parallel layout of the double guide groove ensures the translation accuracy, thereby ensuring smooth opening and closing of the sliding door and effectively improving the stability of the sliding door during movement. Attached Figure Description

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

[0015] Figure 1 This is a schematic diagram of the left oblique front tilt structure of a segmented electric sliding door according to this utility model;

[0016] Figure 2This is a rear-view top view of the guide groove one and guide groove two in a segmented electric sliding door according to this utility model.

[0017] Figure 3 This is a top view of the right oblique front side of the segmented guide component in a segmented electric sliding door according to the present invention;

[0018] Figure 4 This is a rear-view structural diagram of the segmented guide component in a segmented electric sliding door according to the present invention.

[0019] In the diagram: 100-Upper door frame, 110-Rail frame, 120-Guide groove one, 130-Support seat, 140-Transmission toothed roller, 150-Guide groove two, 160-Segmented guide component, 170-Moving door, 180-Fixed door, 190-Lower door frame, 200-Transmission joint;

[0020] 16a-Rack, 16b-Connecting seat, 16c-Support frame, 16d-Gear seat, 16e-Fixed seat. 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.

[0022] Please see Figures 1-4 As the first embodiment of this utility model:

[0023] A segmented electric sliding door includes: an upper door frame 100, segmented guide components 160, and a transmission joint 200. The upper door frame 100 has two sets of rail frames 110 for guiding the sliding of the movable door 170. The rear rail frame 110 has a guide groove 120 for guiding the movable door 170. The upper ends of the guide groove 120 and the guide groove 150 are provided with a set of segmented guide components 160 for controlling the sliding of the movable door 170.

[0024] The segmented guide component 160 includes a rack 16a, a wheel seat 16d, and a fixed seat 16e. The rack 16a has a cross-sectional length greater than that of the movable door 170. A set of limiting blocks is provided on the left and right sides of the rack 16a to limit its movement range. A set of connecting seats 16b is provided at the lower ends of the left and right sides of the rack 16a to connect and fix to the support frame 16c. The connecting seats 16b are connected and fixed to the support frame 16c by bolts. A set of wheel seats 16d is provided at the lower end of the support frame 16c to move and engage with the first guide groove 120 and the second guide groove 150. The left wheel seat 16d is movable and engaged inside the first guide groove 120.

[0025] The right wheel seat 16d is movably fitted into the guide groove 150. Each wheel seat 16d has a set of fixing seats 16e at its lower end for fixed connection with the movable door 170. The fixing seats 16e are fixed to the movable door 170 by bolts.

[0026] The right side of the movable door 170 and the left side of the fixed door 180 are both provided with inclined cross-sections of splicing structure. The upper end of the rack 16a is provided with a set of transmission toothed rollers 140 for driving its left and right displacement. The length of the transmission toothed rollers 140 in top view is 2.5 times the length of the rack 16a.

[0027] The transmission toothed roller 140 has a set of support seats 130 on its front and rear sides for limiting its position. A set of limit bearings is provided at the connection between the support seat 130 and the transmission toothed roller 140. A set of transmission joints 200 for connecting to an external motor is provided on the front side of the transmission toothed roller 140. Before actual use, check the alignment of the inner rail frame 110 of the upper door cover 100 with the guide groove 120, and confirm that the transmission toothed roller 140 is connected to the external motor through the limit bearings of the support seat 130 and the transmission joint 200. When started, the motor drives the transmission toothed roller 140 to rotate, and the meshing rack 16a drives the segmented guide component 160. Horizontal movement is achieved by limiting the travel range of the rack 16a on both sides by the limiting blocks on both sides. The connecting seat 16b rigidly connects the rack 16a to the support frame 16c. The wheel seat 16d slides synchronously along the guide grooves 120 and 120. The fixed seat 16e transmits the motion to the movable door 170 to achieve translation. The movable door 170 and the fixed door 180 form a sealed connection through the inclined cross-section. The extra-long design of the transmission toothed roller 140 can ensure effective transmission throughout the entire process. During operation, its support frame 16c can maintain the engagement state of the wheel seat 16d and the guide groove. At the same time, the lower door sleeve 190 assists in bearing the weight, thereby ensuring the moving efficiency of the movable door 170 on the upper and lower sides.

[0028] Please see Figures 1-4 As a second embodiment of this utility model: based on the description in the above embodiments, further,

[0029] The front rail frame 110 has a guide groove 2 150 inside. The guide groove 1 120 and the guide groove 2 150 have the same specifications and are arranged in parallel. Both the guide groove 1 120 and the guide groove 2 150 have a set of wheel grooves for engaging with the wheel seat 16d in a movable limiting position.

[0030] Both guide groove 120 and guide groove 2 150 have arc-shaped guide openings on their left sides. The depth of the arc-shaped guide openings is the same as the thickness of the fixed door 180, and the distance between guide groove 120 and guide groove 2 150 is the same as the thickness of the fixed door 180. A set of fixed doors 180 is provided on the right side of the movable door 170.

[0031] The lower end of the sliding door 170 is provided with a lower door sleeve 190 for supporting its lower end. At the connection between the lower door sleeve 190 and the sliding door 170, there is a set of ground rail grooves for guiding the movement of the sliding door 170. The top view cross-section of the ground rail groove is consistent with the top view cross-section of the guide groove 120. In actual use, the sliding door 170 is pushed to the side of the fixed door 180, so that the wheel seat 16d is accurately embedded into the arc-shaped guide opening of the guide groove. After the motor is started, the transmission toothed roller 140 drives the rack 16a to move. The connecting seat 16b pushes the support frame 16c so that the wheel seat 16d slides synchronously along the double guide grooves. The ground rail groove and the lower door sleeve 190 work together to guide the lower edge of the sliding door 170, maintaining the vertical stability of the door. During operation, the wheel seat 16d moves linearly in the wheel groove. The depth of the arc-shaped guide opening matches the thickness of the fixed door 180 to achieve seamless connection. The parallel layout of the double guide grooves ensures the translation accuracy, thereby ensuring smooth opening and closing of the sliding door and effectively improving the stability of the sliding door 170 during movement.

[0032] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A segmented electric sliding door, comprising: The upper door frame (100), the segmented guide component (160), and the transmission joint (200) are characterized in that: the upper door frame (100) is provided with two sets of rails (110) for guiding the movable door (170) to move horizontally, and the rear end of the rails (110) is provided with a guide groove (120) for guiding the movable door (170), and the upper end of the guide groove (120) and the guide groove (150) is provided with a set of segmented guide components (160) for controlling the movable door (170) to move horizontally; The segmented guide component (160) includes a rack (16a), a wheel seat (16d), and a fixed seat (16e). The rack (16a) has a top-view cross-sectional length greater than that of the movable door (170). The rack (16a) has a set of limiting blocks on its left and right sides to restrict its movement range. The rack (16a) has a set of connecting seats (16b) on its lower left and right sides to be connected and fixed to the support frame (16c). The connecting seats (16b) are fixed to the support frame (16c) by bolts. The support frame (16c) has a set of wheel seats (16d) on its lower end to be movable and interlocked with the first guide groove (120) and the second guide groove (150). The wheel seat (16d) on the left side is movable and interlocked with the inside of the first guide groove (120).

2. A segmented electric sliding door according to claim 1, characterized in that: The wheel seat (16d) on the right side is movably fitted into the guide groove (150). Each wheel seat (16d) has a set of fixing seats (16e) at its lower end for fixed connection with the movable door (170). The fixing seats (16e) are fixed to the movable door (170) by bolts.

3. A segmented electric sliding door according to claim 2, characterized in that: The right side of the movable door (170) and the left side of the fixed door (180) are provided with inclined cut surfaces of splicing structures. The upper end of the rack (16a) is provided with a set of transmission tooth rollers (140) for driving its left and right displacement. The length of the transmission tooth rollers (140) in plan view is 2.5 times the length of the rack (16a).

4. A segmented electric sliding door according to claim 3, characterized in that: The transmission toothed roller (140) is provided with a set of support seats (130) on the front and rear sides for limiting its position. A set of limit bearings is provided at the connection between the support seat (130) and the transmission toothed roller (140). A set of transmission joints (200) for connecting with an external motor is provided on the front side of the transmission toothed roller (140).

5. A segmented electric sliding door according to claim 1, characterized in that: The front rail frame (110) is provided with a second guide groove (150). The first guide groove (120) and the second guide groove (150) are of the same specifications and are arranged in parallel. The first guide groove (120) and the second guide groove (150) are each provided with a set of wheel grooves for moving and limiting the engagement with the wheel seat (16d).

6. A segmented electric sliding door according to claim 5, characterized in that: Both the first guide groove (120) and the second guide groove (150) are provided with arc-shaped guide openings on the left side. The depth of the arc-shaped guide openings is consistent with the thickness of the fixed door (180), and the distance between the first guide groove (120) and the second guide groove (150) is consistent with the thickness of the fixed door (180). A set of fixed doors (180) is provided on the right side of the movable door (170).

7. A segmented electric sliding door according to claim 6, characterized in that: The lower end of the movable door (170) is provided with a set of lower door sleeves (190) for supporting its lower end. At the connection between the lower door sleeve (190) and the movable door (170), there is a set of ground rail grooves for guiding the movable door (170) to move. The top view cross-section of the ground rail groove is consistent with the top view cross-section of the guide groove (120).