Sofa chair seat frame rotating device

Abstract

The utility model relates to a sofa chair, in particular to a sofa chair seat frame rotating device which comprises a base, a rotating support and a seat, the rotating support is rotatably connected in the base, the top of the rotating support is fixedly connected with the seat, the sofa chair seat frame rotating device further comprises a reset spring, a movable plate, a bearing, a main shaft and a convex block, and the bearing is arranged at the bottom of the rotating support. A reset spring is connected between the movable plate and the bottom of the inner cavity of the base, a main shaft is arranged in the middle of the rotating support, a protruding block is fixedly connected to the side face of the main shaft in the radial direction, a clamping groove is formed in the inner wall of the upper portion of the base, and the protruding block can be embedded in the clamping groove in a sliding mode. When a user sits on the seat, the rotating support is pressed downwards, the protruding block is separated from the clamping groove, the rotating support and the seat rotate freely, after the user stands up, the protruding block is embedded into the clamping groove, and therefore the rotating support is fixed and cannot rotate.

Description

Technical Field

[0001] The utility model relates to a sofa chair, in particular to a sofa chair seat frame rotating device. Background Art

[0002] As a common element in modern furniture design, the swivel sofa chair is deeply loved by people for its unique swivel feature. This kind of seat is usually equipped with one or more swivel axes, which allows the seat to rotate freely within a certain range, providing users with a more flexible and convenient use experience. Whether in homes, offices or public places, swivel sofa chairs are popular for their convenience and comfort.

[0003] However, existing swivel sofa chairs are prone to unnecessary rotation when a person stands up. This is mainly because the seat's rotation mechanism is designed to be relatively flexible and lacks an effective locking mechanism to fix the seat's position. When a user stands up from the seat, a slight touch or other external force may cause the seat to rotate, especially in a crowded or busy environment, where this rotation phenomenon is more common.

[0004] When a chair rotates after a user leaves, it often causes inconvenience to the person who sits down again. Imagine that when you are about to return to your seat, you find that the chair has deviated from its original position. This will not only make you confused and embarrassed, but may also cause you to lose your balance when sitting down, and there is a risk of falling. Especially in places that require concentration, such as offices or meeting rooms, this unexpected deflection and fall may interrupt your train of thought and even cause injury.

[0005] Therefore, we need to find a solution to the problem that the existing swivel sofa chair is prone to rotate after a person stands up. Utility Model Content

[0006] In order to overcome the disadvantage that the existing rotating sofa chair is prone to disorderly rotation after the user stands up, causing the user to deviate and fall when sitting down again, the technical problem of the utility model is to provide a sofa chair seat frame rotating device that limits rotation by compressing the height.

[0007] The technical implementation scheme of the utility model is: a sofa chair seat frame rotating device, including a base, a rotating support and a seat, the rotating support is rotatably connected in the base, the seat is fixedly connected to the top of the rotating support, and also includes a reset spring, a movable plate, a bearing, a main shaft and a protrusion, a bearing is arranged at the bottom of the rotating support, a movable plate is rotatably sleeved on the outside of the bearing, a reset spring is connected between the movable plate and the bottom of the inner cavity of the base, a main shaft is arranged in the middle of the rotating support, a protrusion is radially fixedly connected to the side of the main shaft, a slide groove is provided on the inner wall in the middle of the base, the slide groove can slide and limit the movable plate, a card slot is provided on the upper inner wall of the base, the protrusion can be slidably embedded in the card slot, when the rotating support moves downward, the protrusion is disengaged from the card slot, the rotating support can rotate freely, and when the rotating support moves up and resets, the protrusion will be embedded in the card slot, and the rotating support is in a restricted rotation state.

[0008] Furthermore, it also includes a movable warehouse, the main axis of the rotating support is set to be a telescopic rod, and the telescopic part is provided with the movable warehouse, and the movable warehouse is a closed air cavity.

[0009] Furthermore, it also includes a rubber ring, and a rubber ring is added to the side of the movable bin.

[0010] Furthermore, a protective sleeve is also included, which is fixed to the upper part of the rotating support by bolts, specifically located outside the base.

[0011] Furthermore, a buffer rod is also included, and the buffer rod is fixed in the movable bin.

[0012] Furthermore, a guide wheel is included, which is connected between the rotating support and the base. The guide wheel can effectively reduce the friction coefficient between the two and improve the smoothness of the rotating support when rotating.

[0013] The beneficial effect is that when the user sits on the seat, the swivel support is pressed downward, the protrusion will be disengaged from the slot, and the swivel support and the seat will rotate freely; when the user stands up and leaves the seat, the swivel support moves upward under the resetting action of the resetting spring, and the protrusion will be embedded in the slot, so that the swivel support is fixed and cannot rotate, thereby solving the problem that after the user leaves the sofa chair, the sofa chair continues to rotate due to inertia, making it inconvenient for the user to sit down again. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0015] Figure 2 It is a schematic diagram of the three-dimensional structure of the buffer rod, the guide wheel and the guide wheel of the utility model.

[0016] Figure 3 It is a three-dimensional structural schematic diagram of the reset spring and the protrusion of the utility model.

[0017] Figure 4It is a three-dimensional structural schematic diagram of the movable bin, rubber ring and air cavity of the utility model.

[0018] In the above drawings: 1-base, 2-rotating support, 3-seat, 4-reset spring, 5-slide, 6-movable plate, 7-bearing, 8-spindle, 9-slot, 10-bump, 11-movable warehouse, 12-rubber ring, 13-air cavity, 14-protective cover, 15-buffer rod, 16-guide wheel. DETAILED DESCRIPTION

[0019] The embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0020] Embodiment: A sofa chair seat frame rotating device, such as Figure 1-Figure 4 As shown, it includes a base 1, a rotating support 2 and a seat 3. The rotating support 2 is rotatably connected in the base 1, and the seat 3 is fixedly connected to the top of the rotating support 2. It also includes a reset spring 4, a movable plate 6, a bearing 7, a main shaft 8 and a protrusion 10. A bearing 7 is arranged at the bottom of the rotating support 2, and a movable plate 6 is rotatably sleeved on the outside of the bearing 7. A reset spring 4 is connected between the movable plate 6 and the bottom of the inner cavity of the base 1. A main shaft 8 is arranged in the middle of the rotating support 2, and a protrusion 10 is radially fixedly connected to the side of the main shaft 8. A slide groove 5 is provided on the inner wall of the middle part of the base 1, and the slide groove 5 can slide and limit the movable plate 6. A card slot 9 is provided on the upper inner wall of the base 1, and the protrusion 10 can be slidably embedded in the card slot 9. When the rotating support 2 moves downward, the protrusion 10 disengages from the card slot 9, and the rotating support 2 can rotate freely. When the rotating support 2 moves up and resets, the protrusion 10 will be embedded in the card slot 9. At this time, the rotating support 2 is in a restricted rotation state.

[0021] like Figure 2 As shown, it also includes a movable warehouse 11. The main shaft 8 of the rotating support 2 is set to a telescopic rod shape, and the telescopic part is provided with the movable warehouse 11. The movable warehouse 11 is a closed air cavity 13. A rubber ring 12 is added to the side of the movable warehouse 11. The buffer rod 15 is fixedly connected in the movable warehouse 11. The rubber ring 12 and the buffer rod 15 are provided to improve the impact resistance of the movable warehouse 11.

[0022] like Figure 1 and Figure 2 As shown, a protective sleeve 14 is also included. The protective sleeve 14 is fixed to the upper part of the rotating support 2 by bolts, specifically located outside the base 1.

[0023] like Figure 2 As shown, a guide wheel 16 is also included. The guide wheel 16 is connected between the rotating support 2 and the base 1. The guide wheel 16 can effectively reduce the friction coefficient between the two and improve the smoothness of the rotating support 2 when rotating.

[0024] Instructions for use: In the initial state, the protrusion 10 is embedded in the slot 9, and the seat 3 cannot be rotated at this time. When the user sits on the seat 3, the user's weight presses the rotating support 2 downward, the return spring 4 is compressed, and the protrusion 10 will be out of the slot 9. Since the movable plate 6 is limited and rotated in the slide groove 5, the rotating support 2 can rotate freely at this time. The guide wheel 16 can effectively reduce the friction coefficient between the rotating support 2 and the base 1, and improve the smoothness of the rotating support 2 when rotating. A movable warehouse 11 with buffering function is provided to improve the user's sitting feeling and comfort. The rubber ring 12 and the buffer rod 15 are arranged in the movable warehouse 11 to improve its impact resistance. When the user stands up, the rotating support 2 moves upward under the action of the return spring 4, and then the movable plate 6 moves to the uppermost end of the slide groove 5 and stops at a limited position. At this time, the protrusion 10 will slide into the slot 9, and the rotating support 2 cannot be rotated. Therefore, the problem that the sofa chair continues to rotate due to inertia after the user leaves the sofa chair, making it inconvenient for the user to sit down again is solved.

[0025] Although the utility model is described in detail with reference to the above embodiments, it is obvious to those skilled in the art through this disclosure that various changes or modifications can be made to the utility model without departing from the principle and spirit of the utility model defined by the claims. Therefore, the detailed description of the embodiments of the present disclosure is only used to explain, not to limit the utility model, but the scope of protection is limited by the content of the claims.

Claims

1. A sofa chair seat frame rotating device, comprising a base (1), a rotating support (2) and a seat (3), wherein the rotating support (2) is rotatably connected in the base (1), and the seat (3) is fixedly connected to the top of the rotating support (2), wherein: The invention also comprises a return spring (4), a movable plate (6), a bearing (7), a main shaft (8) and a projection (10). The bottom of the rotating support (2) is provided with a bearing (7). The outer side of the bearing (7) is rotatably sleeved with a movable plate (6). A return spring (4) is connected between the movable plate (6) and the bottom of the inner cavity of the base (1). The middle of the rotating support (2) is provided with a main shaft (8). The side of the main shaft (8) is radially fixed with a projection (10). The inner wall of the middle of the base (1) is provided with a slide groove (5). The slide groove (5) can slide and limit the movable plate (6). The upper inner wall of the base (1) is provided with a clamping groove (9). The projection (10) can be slidably embedded in the clamping groove (9). When the rotating support (2) moves downward, the projection (10) is separated from the clamping groove (9), and the rotating support (2) can rotate freely. When the rotating support (2) moves upward and resets, the projection (10) will be embedded in the clamping groove (9). At this time, the rotating support (2) is in a restricted rotation state.

2. A sofa chair seat frame rotating device according to claim 1, characterized in that: It also includes a movable bin (11), the main shaft (8) of the rotating support (2) is configured as a telescopic rod, and the telescopic portion is provided with the movable bin (11), and the movable bin (11) is a closed air cavity (13).

3. A sofa chair seat frame rotating device according to claim 2, characterized in that: It also includes a rubber ring (12), and a rubber ring (12) is additionally provided on the side of the movable bin (11).

4. A sofa chair seat frame rotating device according to claim 3, characterized in that: It also includes a protective sleeve (14), which is fixed to the upper part of the rotating support (2) by means of bolts, and is specifically located outside the base (1).

5. A sofa chair seat frame rotating device according to claim 4, characterized in that: It also includes a buffer rod (15), which is fixedly connected to the movable bin (11).

6. A sofa chair seat frame rotating device according to claim 5, characterized in that: It also includes a guide wheel (16), which is connected between the rotating support (2) and the base (1).

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