Free rotating seat for door body

By using the rotational design of the upper and lower helical bodies, combined with the inclined surface of the annular tangent and the reset ring, the problems of complex structure and large space occupation of existing door rebound devices are solved, realizing automatic door panel reset and simplifying the structure, making it easier to install and maintain.

CN223647628UActive Publication Date: 2025-12-09NINGBO OWNIC TECH CO LTD
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Patent Information

Application Number
CN202422964529.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-02
Publication Date
2025-12-09
Estimated Expiration
2034-12-02

AI Technical Summary

Technical Problem

Existing door spring-loaded mechanisms are complex and space-consuming, making them unsuitable for doors with simple structures, such as those in bedrooms or toilets.

Method used

The design employs an upper and lower spiral body, which rotates to achieve automatic door panel reset. Combined with the inclined surface design of the circumferential surface and reset ring, the door panel is automatically closed by gravity and guided by the circumferential surface.

Benefits of technology

It enables automatic door panel reset, simplifies the structure, reduces space occupation, facilitates installation and maintenance, and reduces maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a door body free rotating seat which comprises an upper fixing seat fixedly connected with a door frame, a lower fixing seat fixedly connected with a door plate, and an upper spiral body fixedly connected with the upper fixing seat. A control block is integrally generated on the upper spiral body, the end of the control block can be inserted into the upper fixing base, and a matching cavity penetrating through the control block is formed in the control block. The lower spiral body is fixedly connected with the lower fixed seat; an embedding rod is integrally generated on the lower spiral body, a reset ring is integrally generated on the embedding rod, one end, close to the upper spiral body, of the reset ring is annularly cut to form an annular tangent plane, the annular tangent plane is an inclined plane, and the annular tangent plane faces the direction of the upper spiral body; the embedding rod and the reset rod can be embedded into the matching cavity, and the free end of the embedding rod penetrates out of the control block. When the upper spiral body rotates to be in contact with the highest position of the annular tangent plane, the upper spiral body is perpendicular to the lower spiral body; and when the upper spiral body rotates to be in contact with the lowest position of the annular tangent plane, the upper spiral body and the lower spiral body are overlapped. The door has the effects of being simple in design and facilitating springback of the door.
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Description

Technical Field

[0001] This application relates to the field of door fittings, and more particularly to a door body free-swivel seat. Background Technology

[0002] Currently, doors, a type of furniture that every household must install, come in various structures and have a wide range of uses.

[0003] Regarding the aforementioned technologies, there are still some drawbacks: many doors currently use floor spring devices, which allow the door to automatically spring back after being opened, making them convenient to use. However, existing spring-loaded devices have complex structures, take up too much space, and are not suitable for simple doors such as those in bedrooms or bathrooms. Utility Model Content

[0004] For the sake of a simple design and to facilitate the rebound of the door, this application provides a door free-swivel seat.

[0005] This application provides a door body free-rotating seat, which adopts the following technical solution:

[0006] A door free-rotating seat includes an upper fixed seat fixedly connected to the door frame and a lower fixed seat fixedly connected to the door panel.

[0007] The upper helix is ​​fixedly connected to the upper fixed seat; the upper helix is ​​integrally formed with a control block, the end of the control block can be inserted into the upper fixed seat, and the control block has a mating cavity penetrating the control block;

[0008] The lower helix is ​​fixedly connected to the lower fixed seat; the lower helix has an integrally formed fitting rod facing the upper helix, and a reset ring is integrally formed on the fitting rod. The end of the reset ring near the upper helix has a circumferential cut surface, which is an inclined surface facing the upper helix; the fitting rod and the reset rod can be embedded in the mating cavity, and the free end of the fitting rod protrudes from the control block;

[0009] When the upper helix rotates and contacts the highest point of the circumferential surface, the upper helix and the lower helix are arranged perpendicularly; when the upper helix rotates and contacts the lowest point of the circumferential surface, the upper helix and the lower helix overlap.

[0010] By adopting the above technical solution, as the user rotates the door panel, causing it to open and become misaligned with the door frame, the length of the locking rod extending beyond the control block decreases. Meanwhile, the portion of the upper spiral that contacts the reset ring will move and come into close contact with the highest point of the ring's cross-section.

[0011] When the user stops contacting the door panel, under the influence of gravity and guided by the annular sectional surface, the upper spiral will rotate towards the lower spiral until the sides of the upper and lower spirals are in close contact. At this time, the length of the locking rod protruding from the control block will gradually increase as the door panel resets. As the upper and lower spirals come into close contact, the portion of the upper spiral that contacts the reset ring will come into contact with the lowest point of the annular sectional surface.

[0012] Optionally, the lower fixed seat and the lower helical body are integrally formed.

[0013] By adopting the above technical solution, the lower fixing seat and the lower spiral body are integrally formed. This integrated design results in lower costs and a more compact structure. Furthermore, it facilitates the simultaneous installation of both the lower fixing seat and the lower spiral body onto the door panel, simplifying operation and installation for workers.

[0014] Optionally, the lower fixed seat and the lower spiral body are fixedly connected by bolts.

[0015] By adopting the above technical solution, the lower fixed seat and the lower spiral body can be detachably connected. When the lower fixed seat or the lower spiral body fails or is damaged, the staff can disassemble and replace the lower fixed seat or the lower spiral body separately, reducing the later maintenance cost.

[0016] Optionally, the lower fixed seat includes a base and a connecting seat, the base being fixedly connected to the lower helical body, and the connecting seat being parallel to the length direction of the fitting rod.

[0017] By adopting the above technical solution, the lower fixed seat includes a base and a connecting seat. The base contacts and is fixedly connected to the lower spiral body, while the connecting seat is parallel to the length direction of the fitting rod. When the upper spiral body rotates, it contacts the connecting seat during the rotation process. At this time, the connecting seat plays a role in limiting the rotation of the upper spiral body, preventing the door panel from rotating arbitrarily in one direction without restriction.

[0018] Optionally, the end of the fitting rod is provided with a rounded corner.

[0019] By adopting the above technical solution, the rounded corner design of the fitting rod facilitates the insertion of the fitting rod into the mating cavity, thereby realizing the connection between the upper and lower helical bodies.

[0020] Optionally, an oil mineral oil layer is applied to the circumferential surface.

[0021] By adopting the above technical solution, the mineral oil layer has lubricity, and the oily substances in the mineral can also inhibit the moisture in the mineral, thereby preventing the mineral from becoming damp and deteriorating. In addition, the oily substances in the mineral can also inhibit the oxidation reaction of the mineral, thereby preventing mineral corrosion.

[0022] In summary, the beneficial technical effect of this application is that the rotation of the upper and lower helical bodies enables the door panel to move within the door frame, and after the door panel is opened, the door panel will automatically reset under the action of the upper and lower helical bodies, so that the door panel can close the door frame again. Attached Figure Description

[0023] Figure 1 This is a structural schematic diagram of the door panel and door frame in an embodiment of this application.

[0024] Figure 2 This is a schematic diagram highlighting the structure of the resetter in the embodiments of this application.

[0025] Figure 3 This is an exploded structural diagram of the resetter in the embodiments of this application.

[0026] Figure 4 This is an exploded structural diagram of the resetter in another embodiment of the application.

[0027] Reference numerals in the attached drawings: 1. Upper fixed seat; 2. Lower fixed seat; 3. Upper helix; 4. Lower helix; 5. Control block; 6. Mating cavity; 7. Fitting rod; 8. Reset ring; 9. Ring section; 10. Bolt; 11. Door frame; 12. Door panel; 13. Base; 14. Connecting seat. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0029] This application discloses a door body free-rotating seat. (Refer to...) Figure 1 , Figure 2 A door frame 11 resetter includes an upper fixing seat 1 fixedly connected to the door frame 11 and a lower fixing seat 2 fixedly connected to the door panel 12.

[0030] Reference Figure 2 , Figure 3 An upper spiral 3 and a lower spiral 4 for automatically resetting the door panel 12 are connected between the upper fixed seat 1 and the lower fixed seat 2.

[0031] The upper spiral body 3 is fixedly connected to the upper fixed seat 1, and a control block 5 is integrally formed on the upper spiral body 3. The end of the control block 5 can be inserted into the upper fixed seat 1, and the upper spiral body 3 and the upper fixed seat 1 are fixedly connected by bolts 10.

[0032] A cavity 6 is also provided on the upper spiral 3 to allow the lower spiral 4 to be inserted through the control block 5.

[0033] Reference Figure 2 , Figure 3The lower helix 4 is fixedly connected to the lower fixed base 2. A fitting rod 7, integrally formed with the lower helix 4, is provided at one end of the lower helix 4 facing the upper helix 3. This fitting rod 7 can be inserted into the mating cavity 6. The end of the fitting rod 7 has a rounded corner design to guide it into the mating cavity 6, facilitating the insertion of the fitting rod 7 into the mating cavity 6 and realizing the connection between the upper helix 3 and the lower helix 4.

[0034] A reset ring 8 is integrally formed on the fitting rod 7. The inner ring of the reset ring 8 is in close contact with the fitting rod 7, but the end of the reset ring 8 is also circumferentially cut to form a circumferential cut surface 9. The circumferential cut surface 9 is an inclined surface, but it is also a plane. The circumferential cut surface 9 faces the direction of the upper helical body 3. A mineral oil layer is applied to the circumferential cut surface 9. The mineral oil layer has lubricating properties, and the oily substances in the mineral can also inhibit the moisture in the mineral, thereby preventing the mineral from becoming damp and deteriorating. In addition, the oily substances in the mineral can also inhibit the oxidation reaction of the mineral, thereby preventing mineral corrosion.

[0035] Reference Figure 2 , Figure 3 When the fitting rod 7 and the reset rod are simultaneously inserted into the mating cavity 6, the free end of the fitting rod 7 will protrude outside the control block 5.

[0036] As the user rotates the door panel 12, causing it to open and become misaligned with the door frame 11, the length of the locking rod 7 extending out of the control block 5 decreases. Meanwhile, the portion of the upper spiral 3 that contacts the reset ring 8 will press tightly against the highest point of the annular tangent 9 as the door panel 12 moves.

[0037] When the user no longer contacts the door panel 12, under the influence of gravity and guided by the annular surface 9, the upper spiral 3 will rotate towards the lower spiral 4 until the sides of the upper spiral 3 and the lower spiral 4 are in close contact. At this time, the length of the locking rod 7 extending out of the control block 5 will gradually increase as the door panel 12 resets. As the upper spiral 3 and the lower spiral 4 become in close contact, the part of the upper spiral 3 that contacts the reset ring 8 will come into contact with the lowest point of the annular surface 9.

[0038] Reference Figure 2 , Figure 3 The lower fixed seat 2 includes a base 13 and a connecting seat 14. The base 13 contacts and is fixedly connected to the lower spiral body 4, while the connecting seat 14 is parallel to the length direction of the fitting rod 7. When the upper spiral body 3 rotates, it will contact the connecting seat 14 during the rotation process. At this time, the connecting seat 14 plays a role in limiting the rotation of the upper spiral body 3, so that the door panel 12 will not rotate arbitrarily in one direction without restriction.

[0039] In the embodiments of this application, reference is made to Figure 2 , Figure 3The lower fixing seat 2 and the lower spiral body 4 are integrally formed. Integrating the lower spiral body 4 with the lower fixing seat 2 results in lower cost and a more compact structure. It also facilitates the simultaneous installation of both the lower fixing seat 2 and the lower spiral body 4 onto the door panel 12, simplifying operation and installation for workers.

[0040] In another embodiment of the application, reference is made to... Figure 2 , Figure 4 The lower fixed seat 2 and the lower spiral body 4 are fixedly connected by bolts 10. The lower fixed seat 2 and the lower spiral body 4 are detachably connected. If the lower fixed seat 2 or the lower spiral body 4 malfunctions or is damaged, the staff can disassemble and replace the lower fixed seat 2 or the lower spiral body 4 separately, reducing the later maintenance cost.

[0041] The implementation principle of a door frame 11 resetter disclosed in this application embodiment is as follows: the rotation of the upper spiral 3 and the lower spiral 4 realizes the movement of the door panel 12 within the door frame 11, and after the door panel 12 is opened, the door panel 12 will automatically reset under the action of the upper spiral 3 and the lower spiral 4, so that the door panel 12 recloses the door frame 11.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A door free-rotating seat, comprising an upper fixed seat (1) fixedly connected to a door frame (11) and a lower fixed seat (2) fixedly connected to a door panel (12), characterized in that: Also includes The upper helical body (3) is fixedly connected to the upper fixed seat (1); the upper helical body (3) is integrally formed with a control block (5), the end of the control block (5) can be inserted into the upper fixed seat (1), and the control block (5) has a mating cavity (6) that passes through the control block (5); The lower helix (4) is fixedly connected to the lower fixed seat (2); the lower helix (4) has an integrally formed fitting rod (7) facing the upper helix (3), and a reset ring (8) is integrally formed on the fitting rod (7). The reset ring (8) has an annular cut surface (9) at one end near the upper helix (3). The annular cut surface (9) is an inclined surface and faces the upper helix (3); the fitting rod (7) and the reset rod can be embedded in the mating cavity (6), and the free end of the fitting rod (7) protrudes out of the control block (5); When the upper helix (3) rotates and contacts the highest point of the circumferential surface (9), the upper helix (3) and the lower helix (4) are arranged perpendicularly; when the upper helix (3) rotates and contacts the lowest point of the circumferential surface (9), the upper helix (3) and the lower helix (4) overlap.

2. The door body free-rotating seat according to claim 1, characterized in that: The lower fixed seat (2) and the lower spiral body (4) are integrally formed.

3. A door body free-rotating seat according to claim 1, characterized in that: The lower fixed seat (2) and the lower spiral body (4) are fixedly connected by bolts (10).

4. A door body free-rotating seat according to claim 2 or 3, characterized in that: The lower fixed seat (2) includes a base (13) and a connecting seat (14). The base (13) is fixedly connected to the lower spiral body (4), and the connecting seat (14) is parallel to the length direction of the fitting rod (7).

5. A door body free-rotating seat according to claim 1, characterized in that: The end of the fitting rod (7) is rounded.

6. A door body free-rotating seat according to claim 1, characterized in that: A mineral oil layer is applied to the circumferential surface (9).