Guiding and limiting moving structure of arc door
By using a dual-track system and a guide wheel design that adapts to changes in the curvature of the arc track, the problems of efficiency and stability in the movement of the arc-shaped door are solved, achieving smooth opening and closing and efficient movement.
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
- 2025-06-03
- Publication Date
- 2026-05-08
AI Technical Summary
Existing circular arched gates suffer from low efficiency and poor stability during movement, mainly due to the limited flexibility and stability caused by their requirement to follow a circular arc path.
The system employs a dual-track system, including a top track and a ground track. Through components such as a fixed frame, adjusting slide, curved track, limit block, and movable seat, it ensures that the door moves smoothly along the curved track. The guide wheel adapts to changes in the curvature of the curved track, the limit block prevents derailment, and the adjusting slide allows for fine-tuning of the height, thus enhancing the overall rigidity.
It improves the moving efficiency and stability of the arched door, ensures smooth opening and closing of the door, reduces the burden on the drive device, and lowers costs.
Smart Images

Figure CN224214039U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of arc door technology and relates to an arc door guide and limiting movement structure. Background Technology
[0002] Existing curved doors have several drawbacks in terms of movement efficiency and stability. Due to their structural characteristics, curved doors must move along a specific curved trajectory when opening and closing, resulting in a longer movement path than straight doors, thus reducing efficiency. Furthermore, changes in the center of gravity during movement can cause instability at certain points. These drawbacks primarily stem from the curved door's movement trajectory and structural design, which necessitates following a fixed, curved path, limiting its flexibility and stability. Conventional solutions include increasing the door's counterweight, using higher-quality materials to enhance rigidity, and designing more sophisticated guide rail systems to ensure smooth movement along the predetermined trajectory. However, these methods also have limitations. While increasing counterweight improves stability, it also increases the door's overall mass, requiring a more powerful drive mechanism, which not only increases cost but may further reduce movement efficiency. Therefore, a guiding and limiting movement structure for curved doors is urgently needed to address these issues. Utility Model Content
[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a circular arc door guide and limiting movement structure to solve the problems mentioned in the background technology.
[0004] This utility model is achieved through the following technical solution: a circular arc door guide limiting and moving structure, including: a door frame and a second door body, the top of the door frame is provided with a set of top rails for limiting the movement of the first door body and the second door body, the bottom of the door frame is provided with a set of ground rails for limiting the movement of the first door body and the second door body, and the left and right sides of the door frame are respectively provided with a set of fixed frames for limiting and connecting with the top rails, the front cross-section of the fixed frame is a rectangular structure;
[0005] The top rail includes a fixing frame and a limiting block. There are four sets of fixing frames, which are distributed in pairs and connected to a fixing frame on one side by bolts. On the front side of each pair of fixing frames, there is a support back frame for fixing and supporting the rear side of the adjusting rail. On the front side of each set of support back frames, there is an adjusting slide for adjusting the height of the arc rail. On the rear side of the adjusting slide, there is an adjusting rail for providing movement guidance for the adjusting slide. The adjusting rail has an I-shaped cross-section when viewed from above.
[0006] In a preferred embodiment, the front side of the adjusting rail is provided with a set of adjusting slides for adjusting the height of the curved rail. The front cross-section of the adjusting slides is a rectangular structure, and each set of external corners has a set of bolt holes for connecting and fixing with the support frame. During installation, the fixing frame is first symmetrically fixed to both sides of the fixing frame with bolts. The support frame and the adjusting rail are fitted with an I-shaped structure to ensure vertical accuracy. When the adjusting slides move up and down along the adjusting rail, the relative position of the support frame and the curved rail is fixed through the bolt holes. When the door is running, the guide wheel rolls along the curved surface of the curved rail. The limit block and the limit layer cooperate to prevent derailment. The ground rail and the top rail guide the door to move synchronously. The movable seat adapts to the curvature change of the curved rail through the guide wheel. The above structure is supported by four sets of fixed frames in a distributed manner. The adjusting slides realize the fine adjustment of the height of the curved rail. The dual-track system ensures the smooth opening and closing of the door, thereby effectively improving the movement efficiency of the curved door.
[0007] In a preferred embodiment, the rear end of the adjusting slide is provided with two rows of movable wheels for moving and engaging with the inner side of the arc rail, and the center of the front side of the adjusting slide is provided with a set of inner engagement grooves for engaging and connecting with the left and right sides of the arc rail.
[0008] In a preferred embodiment, the two sets of adjusting slides are respectively fitted and connected to the left and right sides of the arc rail, and are fixed by bolts passing through the left and right sides. The arc rail has a semi-circular cross-section when viewed from above.
[0009] In a preferred embodiment, a set of limiting layers for limiting the movement of the movable seat is provided on the outer side of the center position of the arc rail. The limiting layers wrap around the outer side of the arc rail, and a set of limiting blocks for limiting the position of the movable seat is provided on the left and right sides of the limiting layers.
[0010] In a preferred embodiment, a set of movable seats for moving door one or door two is provided on the outer side of the middle position of the arc rail, and several sets of guide wheels for moving in conjunction with the arc rail and the limiting layer are provided on the inner side of the movable seats.
[0011] In a preferred embodiment, the movable seat is provided in two sets, and the tops of the two sets of movable seats are respectively connected and fixed by bolts to the door body one and the door body two. A set of internal fixed support rods is provided between the movable seats to improve the support strength.
[0012] In a preferred embodiment, the top-view cross-section of the ground track is identical to that of the arc track. Each of the two door bodies (door 1 and door 2) has a set of movable bases at its lower end for engaging with the ground track. These two sets of movable bases are bolted to the bottom of door 1 and door 2 respectively. In actual use, the adjusting slides form a rolling engagement with the inner side of the arc track via two rows of rear-end moving wheels. Simultaneously, the front inner engagement groove is positioned and connected to the left and right sides of the arc track. After engaging with the arc track from the left and right sides respectively, the two sets of adjusting slides are fixed with through bolts, forming a semi-circular track structure. The movable seats move along the arc track and the outer limiting layer via multiple sets of inner guide wheels. The limiting blocks prevent the movable seats from derailing. The two sets of movable seats are connected to the top of door 1 and door 2 respectively, and the overall rigidity is enhanced by internal fixed support rods. The movable base at the bottom of the door engages with the ground track, and its cross-sectional structure is identical to that of the arc track, forming a synchronous upper and lower guiding system, further stabilizing the movement of door 1 and door 2.
[0013] After adopting the above technical solution, the beneficial effects of this utility model are as follows: During installation, the fixed frame is first symmetrically fixed to both sides of the fixed frame with bolts. The support back frame and the adjustment rail are fitted with an I-shaped structure to ensure vertical accuracy. When the adjustment slide moves up and down along the adjustment rail, the relative position of the support back frame and the arc rail is fixed through bolt holes. When the door is running, the guide wheel rolls along the curved surface of the arc rail. The limit block and the limit layer cooperate to prevent derailment. The ground rail and the top rail guide the door to move horizontally in sync. The movable seat adapts to the curvature change of the arc rail through the guide wheel. The above structure is supported by four sets of fixed frames in a distributed manner. The adjustment slide realizes the fine adjustment of the arc rail height. The dual track system ensures the smooth opening and closing of the door, thereby effectively improving the movement efficiency of the arc door.
[0014] The adjusting slides are rolled into the inner side of the arc rail by two rows of moving wheels at the rear end. At the same time, the inner groove on the front side is positioned and connected to the left and right sides of the arc rail. After the two sets of adjusting slides are engaged with the arc rail from the left and right sides respectively, they are fixed by through bolts to form a semi-circular track structure. The movable seat moves along the arc rail and the outer limiting layer by multiple sets of guide wheels on the inner side. The limiting block can prevent the movable seat from derailing. The two sets of movable seats are connected to the top of door body one and door body two respectively, and the overall rigidity is enhanced by the internal fixed support rod. The movable base at the bottom of the door body is engaged with the ground rail. Its cross-sectional structure is consistent with the arc rail, forming a synchronous upper and lower guiding system, and further stabilizing the movement of door body one and door body two. Attached Figure Description
[0015] 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.
[0016] Figure 1 This is a top view of the front structure of the arc-shaped door guide and limiting movement structure of this utility model;
[0017] Figure 2 This is a top view of the front side of the top rail in the arc-shaped door guide and limiting moving structure of this utility model;
[0018] Figure 3 This is a schematic diagram of the adjusting rail, adjusting slide, and left oblique side structure of the arc-shaped door guide limiting and moving structure of this utility model;
[0019] Figure 4 for Figure 3 Enlarged schematic diagram of the structure at point A in the middle;
[0020] In the diagram: 100 - door frame, 110 - top track, 120 - bottom track, 130 - door body one, 140 - door body two;
[0021] 11a-Fixed frame, 11b-Support back frame, 11c-Adjusting rail, 11d-Adjusting slide, 11e-Arc rail, 11f-Limiting layer, 11g-Modible seat, 11h-Guide wheel, 11i-Limiting block. Detailed Implementation
[0022] 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.
[0023] Please see Figures 1-4 As the first embodiment of this utility model:
[0024] A circular arc door guide and limiting movement structure includes: a door frame 100, a top rail 110, and a second door body 140. The top of the door frame 100 is provided with a set of top rails 110 for limiting the movement of the first door body 130 and the second door body 140. The bottom of the door frame 100 is provided with a set of bottom rails 120 for limiting the movement of the first door body 130 and the second door body 140. The left and right sides of the door frame 100 are respectively provided with a set of fixed frames for limiting connection with the top rails 110. The front cross-section of the fixed frame is a rectangular structure.
[0025] The top rail 110 includes a fixed frame 11a, an adjusting slide 11d, an arc rail 11e, and a limiting block 11i. The fixed frame 11a is provided in four sets, which are distributed in pairs and connected to the fixed frame on one side by bolts. On the front side of each of the two sets of fixed frames 11a, there is a support back frame 11b for fixing and supporting the rear side of the adjusting rail 11c. On the front side of each support back frame 11b, there is an adjusting slide 11d for adjusting the height of the arc rail 11e. On the rear side of the adjusting slide 11d, there is an adjusting rail 11c for providing movement guidance for the adjusting slide 11d. The cross-section of the adjusting rail 11c in plan view is an I-shaped structure.
[0026] The front side of the adjusting rail 11c is provided with a set of adjusting slides 11d for adjusting the height of the arc rail 11e. The front cross-section of the adjusting slide 11d is a rectangular structure, and each set of external corners has a set of bolt holes for connecting and fixing with the support frame 11b. During installation, the fixing frame 11a is first symmetrically fixed to both sides of the fixing frame with bolts. The support frame 11b and the adjusting rail 11c are fitted with an I-shaped structure to ensure vertical accuracy. When the adjusting slide 11d moves up and down along the adjusting rail 11c, the support frame is fixed through the bolt holes. The relative positions of frame 11b and curved track 11e are such that when the door is running, guide wheel 11h rolls along the curved surface of curved track 11e, limit block 11i and limit layer 11f cooperate to prevent derailment, ground track 120 and top track 110 synchronously guide the door to move horizontally, and movable seat 11g adapts to the curvature change of curved track 11e through guide wheel 11h. The above structure is supported by four sets of fixed frames 11a in a distributed manner, and the height of curved track 11e can be finely adjusted by adjusting slide 11d. The dual track system ensures that the door opens and closes smoothly, thereby effectively improving the movement efficiency of the curved door.
[0027] Please see Figures 1-4 As a second embodiment of this utility model: based on the description in the above embodiments, further,
[0028] The rear end of the adjusting slide 11d is provided with two rows of movable wheels for moving and engaging with the inner side of the arc rail 11e. The center of the front side of the adjusting slide 11d is provided with a set of inner fitting grooves for engaging and connecting with the left and right sides of the arc rail 11e.
[0029] Two sets of adjusting slides 11d are respectively fitted and connected to the left and right sides of the arc rail 11e, and are fixed by bolts through the left and right sides. The arc rail 11e has a semi-circular cross-section when viewed from above.
[0030] A set of limiting layers 11f is provided on the outer side of the center position of the arc rail 11e to limit the movement of the movable seat 11g. The limiting layers 11f wrap around the outer side of the arc rail 11e, and a set of limiting blocks 11i are provided on the left and right sides of the limiting layers 11f to limit the position of the movable seat 11g.
[0031] A set of movable seats 11g is provided on the outer side of the middle position of the arc rail 11e for moving the door body 130 or the door body 140. Several sets of guide wheels 11h are provided on the inner side of the movable seats 11g for moving in conjunction with the arc rail 11e and the limiting layer 11f.
[0032] The movable seat 11g is provided in two sets. The two sets of movable seats 11g are fixed to the top of door body 130 and door body 2 140 respectively by bolts. A set of internal fixed support rods is provided between the movable seats 11g to improve the support strength.
[0033] The top-view cross-section of the ground track 120 is identical to that of the curved track 11e. Each of the door bodies 130 and 140 has a set of movable bases at its lower end for movably engaging with the ground track 120. These two sets of movable bases are bolted to the bottom of door bodies 130 and 140 respectively. In actual use, the adjusting slide 11d forms a rolling engagement with the inner side of the curved track 11e via two rows of rear-end moving wheels. Simultaneously, the front inner engagement groove is positioned and connected to the left and right sides of the curved track 11e. After the two sets of adjusting slides 11d engage with the curved track 11e from the left and right sides respectively, [the movement is controlled by...]. The movable seat 11g is fixed by through bolts to form a semi-circular track structure. The movable seat 11g moves along the arc track 11e and the outer limiting layer 11f through multiple sets of inner guide wheels 11h. The limiting block 11i can prevent the movable seat 11g from derailing. The two sets of movable seats 11g are respectively connected to the top of the first door body 130 and the second door body 140, and the overall rigidity is enhanced by the internal fixed support rod. The movable base at the bottom of the door body is fitted with the ground track 120. Its cross-sectional structure is consistent with the arc track 11e, forming a synchronous upper and lower guiding system, and further stabilizing the movement of the first door body 130 and the second door body 140.
[0034] 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 circular arc door guide and limiting movement structure, comprising: The door frame (100), top rail (110), and door body two (140) are characterized in that: the top of the door frame (100) is provided with a set of top rail (110) for limiting the movement of door body one (130) and door body two (140); the bottom of the door frame (100) is provided with a set of bottom rail (120) for limiting the movement of door body one (130) and door body two (140); and the left and right sides of the door frame (100) are respectively provided with a set of fixed frames for limiting connection with the top rail (110), and the front cross-section of the fixed frame is a rectangular structure. The top rail (110) includes a fixed frame (11a), an adjusting slide (11d), an arc rail (11e), and a limiting block (11i). The fixed frame (11a) is provided in four sets. The four sets of fixed frames (11a) are distributed in pairs and connected and fixed to a fixed frame on one side by bolts. Each side has a set of support back frames (11b) on the front side of the two sets of fixed frames (11a) for fixing and supporting the rear side of the adjusting rail (11c). Each set of support back frames (11b) has a set of adjusting slides (11d) on the front side for adjusting the height of the arc rail (11e). The adjusting slides (11d) have a set of adjusting rails (11c) on the rear side for providing movement guidance for the adjusting slides (11d). The adjusting rails (11c) have an I-shaped cross-section when viewed from above.
2. The arc-shaped door guide and limiting movement structure according to claim 1, characterized in that: The front side of the adjustment rail (11c) is provided with a set of adjustment slides (11d) for adjusting the height of the arc rail (11e). The front cross-section of the adjustment slides (11d) is a rectangular structure, and each set of external corners is provided with a set of bolt holes for connecting and fixing with the support frame (11b).
3. The arc-shaped door guide and limiting movement structure according to claim 2, characterized in that: The rear end of the adjusting slide (11d) is provided with two rows of movable wheels for moving and engaging with the inner side of the arc rail (11e). The center of the front side of the adjusting slide (11d) is provided with a set of inner fitting grooves for engaging and connecting with the left and right sides of the arc rail (11e).
4. The arc-shaped door guide and limiting movement structure according to claim 3, characterized in that: The two sets of adjusting slides (11d) are respectively fitted and connected to the left and right sides of the arc rail (11e), and are fixed by bolts through the left and right sides. The arc rail (11e) has a semi-circular cross-section when viewed from above.
5. The arc-shaped door guide and limiting movement structure according to claim 4, characterized in that: The outer side of the center position of the arc rail (11e) is provided with a set of limiting layers (11f) for limiting the movement of the movable seat (11g). The limiting layers (11f) wrap around the outer side of the arc rail (11e), and the left and right sides of the limiting layers (11f) are respectively provided with a set of limiting blocks (11i) for limiting the position of the movable seat (11g).
6. The arc-shaped door guide and limiting movement structure according to claim 5, characterized in that: The outer side of the middle position of the arc rail (11e) is provided with a set of movable seats (11g) for moving the door body one (130) or the door body two (140). The inner side of the movable seat (11g) is provided with several sets of guide wheels (11h) for moving in conjunction with the arc rail (11e) and the limiting layer (11f).
7. The arc-shaped door guide and limiting movement structure according to claim 6, characterized in that: The movable seat (11g) is provided in two sets. The two sets of movable seats (11g) are respectively connected and fixed to the top of door body one (130) and door body two (140) by bolts. A set of internal fixed support rods for improving the support strength is provided between the movable seats (11g).
8. The arc-shaped door guide and limiting movement structure according to claim 1, characterized in that: The top view cross section of the ground rail (120) is the same as that of the arc rail (11e). The lower ends of the first door body (130) and the second door body (140) are respectively provided with a set of movable bases for movably fitting with the ground rail (120). The two sets of movable bases are respectively connected and fixed to the bottom of the first door body (130) and the second door body (140) by bolts.