Single sofa base rotation locking mechanism

Abstract

The utility model relates to the technical field of sofa accessories, and discloses a single sofa base rotation locking mechanism which comprises a loading ring seat, a supporting frame is fixedly connected in the loading ring seat, the top end of the supporting frame is detachably connected with a fixed base, the middle of the fixed base is rotatably connected with a rotating shaft, and the rotating shaft is fixedly connected with the loading ring seat. A mounting seat is fixedly connected to the top end of the rotating shaft, a circular fluted disc is fixedly connected to the bottom end of the mounting seat, a plurality of positioning blocks are fixedly connected to the top end of the fixed base, telescopic rods are fixedly connected to the sides, close to the circular fluted disc, of the positioning blocks, and circular rods are fixedly connected to the sides, close to the circular fluted disc, of the telescopic rods. According to the utility model, the sofa can be self-locked after being rotated to a proper angle, so that damage to a user caused by sudden rotation of the sofa is avoided, in addition, the user can easily separate or mount the sofa base and the sofa main body, and the sofa can be quickly carried and reassembled according to different spatial layout requirements.

Description

TECHNICAL FIELD

[0001] The utility model relates to sofa accessory technical field especially relates to a single sofa base rotation locking mechanism. BACKGROUND

[0002] In modern home life, as a common furniture, the functionality and comfort of the sofa are attracting more and more attention. Single sofa is widely used in various home and office places due to its flexibility and independence.

[0003] Single sofa has been widely used in many families and office places due to its independent design and convenient moving and placing. With the change of lifestyle, people often need to adjust the orientation of the sofa according to different scenes and use requirements, for example, in the office rest area, it can be turned to different directions at any time to get a better view or sunlight angle. This makes the rotation function of single sofa gradually become a popular design element.

[0004] Some existing single sofa rotation parts use relatively simple bearing connection, but this connection lacks effective locking function. When the user does not need the sofa to rotate, the sofa may be randomly rotated due to slight external force, affecting the stability and safety of use, especially in the family environment with children or old people, this unstable factor may bring potential danger. In addition, during daily home decoration, house cleaning or temporary change of furniture arrangement, single sofa often needs to be moved or disassembled. However, the traditional single sofa base and sofa body are usually connected in a fixed way, the connection structure is complex and difficult to disassemble, which makes the disassembly process of the sofa cumbersome, time-consuming and laborious, often requiring professional tools and professional operation, which brings great inconvenience to the user. Therefore, in view of the above problems, a single sofa base rotation locking mechanism is proposed to solve the above problems. CONTENT OF THE UTILITY MODEL

[0005] In order to make up for the above shortcomings, the utility model provides a single sofa base rotation locking mechanism, which aims to improve the problems of lack of locking structure in sofa base rotation part and difficulty in disassembling sofa base rotation part in the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A single sofa base rotating locking mechanism, comprising a load ring seat, the inside of the load ring seat is fixedly connected with a support frame, the top end of the support frame is detachably connected with a fixed base, the middle of the fixed base is rotatably connected with a rotating shaft, the top end of the rotating shaft is fixedly connected with a mounting seat, the bottom end of the mounting seat is fixedly connected with a circular tooth disc, the top end of the fixed base is fixedly connected with a plurality of positioning blocks, the side close to the circular tooth disc of the positioning block is fixedly connected with an extension rod, the side close to the circular tooth disc of the extension rod is fixedly connected with a circular rod, the top end of the mounting seat is fixedly connected with a limiting cylinder at four corners, the top end of the limiting cylinder is fixedly connected with a clamping rod, the inside of the clamping rod is provided with a threaded groove, and the outside of the clamping rod is provided with a fixed assembly for assisting the mounting seat to be mounted at the bottom end of the single sofa;

[0008] As a further description of the above technical scheme:

[0009] The fixed assembly comprises three through holes, the three through holes are arranged on the outside of the top end of the clamping rod, and the inside of the through hole is movably connected with a movable ball;

[0010] As a further description of the above technical scheme:

[0011] The middle of the limiting cylinder is slidably connected with an abutting rod, the middle of the outer surface of the abutting rod is fixedly connected with a limiting ring, the top end of the outer surface of the abutting rod is provided with a threaded groove, the top end of the abutting rod is fixedly connected with a clamping ball, the outside of the clamping ball is clamped with the outside of the movable ball, and the outside of the abutting rod is sleeved with a spring one;

[0012] As a further description of the above technical scheme:

[0013] The middle inner wall of the circular tooth disc is fixedly connected to the outside of the rotating shaft, and the outside of the circular rod is clamped with the outside of the circular tooth disc;

[0014] As a further description of the above technical scheme:

[0015] The outside of the extension rod is sleeved with a spring two, the side close to the circular tooth disc of the spring two is fixedly connected to the outside of the circular rod, and the end away from the circular tooth disc of the spring two is fixedly connected to the side close to the circular tooth disc of the positioning block;

[0016] As a further description of the above technical scheme:

[0017] The bottom end of the circular rod is slidably connected to the top end of the fixed base, and the bottom end of the circular tooth disc is movably connected to the top end of the fixed base;

[0018] As a further description of the above technical scheme:

[0019] The external thread connection of the thread profile is connected to the inner wall of the thread groove, and the external sliding connection of the limiting ring is connected to the inner wall of the limiting cylinder.

[0020] Further description of the above technical solution:

[0021] The bottom end of the spring one is fixedly connected to the bottom end of the inner wall of the limiting cylinder, and the top end of the spring one is fixedly connected to the bottom end of the limiting ring.

[0022] The utility model has the advantages of the following:

[0023] 1. In the utility model, the rotation of the sofa connecting mounting seat drives the rotation of the circular tooth disc, the circular tooth disc extrudes the outside of the circular rod through the externally protruding circular block, the circular rod is retracted after being extruded, and is clamped in the external groove of the circular tooth disc after being resisted by the elastic force of the spring two, so that the sofa is self-locked after being rotated to the appropriate angle, the sofa is prevented from being excessively rotated, unnecessary shaking is avoided, and the user is prevented from being hurt by the sudden rotation of the sofa.

[0024] 2. In the utility model, the thread profile of the abutting rod is screwed in the thread groove of the clamping rod by twisting the abutting rod handle, the external curved surface of the clamping ball can extrude the movable ball, the movable ball is clamped in the single sofa clamping groove, the sofa base and the sofa main body can be separated or installed by the user, the different space layout requirements are met, and the sofa is quickly carried and reassembled. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 A three-dimensional schematic view of a single sofa base rotary locking mechanism is provided for the utility model;

[0026] Figure 2 A structural schematic view of a single sofa base rotary locking mechanism mounting seat is provided for the utility model;

[0027] Figure 3 A structural schematic view of a single sofa base rotary locking mechanism circular tooth disc is provided for the utility model;

[0028] Figure 4 For Figure 2 An enlarged view of A in the middle;

[0029] Figure 5 An exploded view of a single sofa base rotary locking mechanism abutting rod is provided for the utility model.

[0030] LEGEND:

[0031] 1. Load-bearing ring seat; 2. Support frame; 3. Fixed base; 4. Rotating shaft; 5. Mounting seat; 6. Gear disc; 7. Positioning block; 8. Telescopic rod; 9. Spring II; 10. Round rod; 11. Limiting cylinder; 12. Clamping rod; 13. Threaded groove; 14. Through hole; 15. Moving ball; 16. Abutment rod; 17. Limiting ring; 18. Threaded pattern; 19. Clamping ball; 20. Spring I. Detailed Implementation

[0032] 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.

[0033] Reference Figures 1 to 3 This utility model provides an embodiment of a rotating locking mechanism for a single sofa base, comprising a load-bearing ring seat 1. The load-bearing ring seat 1 is made of steel and has a certain weight, enabling it to be stably placed on the ground without displacement or tipping. A support frame 2 is fixedly connected inside the load-bearing ring seat 1. The support frame 2 is cross-shaped. A fixed base 3 is detachably connected to the top of the support frame 2, and the fixed base 3 is bolted to the four corners of the support frame 2.

[0034] A rotating shaft 4 is rotatably connected to the center of the fixed base 3. A hole matching the rotating shaft 4 is provided at the center of the fixed base 3 to ensure smooth rotation of the rotating shaft 4. A mounting base 5 is fixedly connected to the top of the rotating shaft 4, which connects the individual sofa unit and the base's rotation locking mechanism. A toothed disc 6 is fixedly connected to the bottom of the mounting base 5. The toothed disc 6 is a circular disc structure with evenly distributed protruding circular teeth on its outer edge. The inner wall of the toothed disc 6 is fixedly connected to the outside of the rotating shaft 4, and the center of the toothed disc 6 is fixedly connected to the rotating shaft 4 to ensure synchronous rotation during rotation. The bottom end of the toothed disc 6 is movably connected to the top of the fixed base 3. When the toothed disc 6 rotates, its bottom surface contacts the top of the fixed base 3, sliding and rotating simultaneously.

[0035] refer to Figure 2 , Figure 3 Multiple positioning blocks 7 are fixedly connected to the top of the fixed base 3. The positioning blocks 7 are L-shaped plates, which are bolted in a circular shape and fixed to the top of the fixed base 3. A telescopic rod 8 is fixedly connected to the side of the positioning blocks 7 near the toothed disc 6. The telescopic rod 8 consists of two nested tubular components. The inner tube can slide inside the outer tube to achieve the telescopic function. A round rod 10 is fixedly connected to the side of the telescopic rod 8 near the toothed disc 6. The round rod 10 is a long, circular rod with a length equal to the thickness of the toothed disc 6.

[0036] The outer sleeve of the telescopic rod 8 is provided with a spring 9, which provides elastic force for the round rod 10, so that it can be quickly clamped with the clamping groove between the teeth after the round tooth disc 6 stops rotating, realizing the automatic locking function of the sofa. The side of the spring 9 close to the round tooth disc 6 is fixedly connected to the outside of the round rod 10, and the end of the spring 9 away from the round tooth disc 6 is fixedly connected to the side of the positioning block 7 close to the round tooth disc 6. One end of the spring 9 is fixedly connected to the round rod 10, and the other end is fixedly connected to the positioning block 7, so as to ensure that the spring 9 can maintain stable elastic performance during compression and extension.

[0037] The bottom end of the round rod 10 is slidingly connected to the top end of the fixed base 3, and the round rod 10 will be extruded by the teeth of the round tooth disc 6 when the round tooth disc 6 rotates, and will be driven to slide on the surface of the fixed base 3 by the telescopic rod 8 and the spring 9. The outer part of the round rod 10 is clamped with the outer part of the round tooth disc 6, and the outer shape of the round rod 10 is designed according to the requirements of the tooth groove matching with the round tooth disc 6, so that the outer shape of the round rod 10 can be clamped with the outer clamping groove of the round tooth disc 6.

[0038] Reference Figure 4 、 Figure 5 The top end of the mounting seat 5 is fixedly connected with a limiting cylinder 11, and the upper and lower surfaces of the limiting cylinder 11 are provided with holes with a diameter smaller than the inner diameter of the inner wall. The top end of the limiting cylinder 11 is fixedly connected with a clamping rod 12, the inner diameter of the clamping rod 12 is equal to the diameter of the holes provided on the upper and lower surfaces of the limiting cylinder 11, and the outer part is a circular long rod. The inner part of the clamping rod 12 is provided with a threaded groove 13, which is designed to facilitate the user to rotate the stop rod 16. The outer part of the clamping rod 12 is provided with a fixing assembly for assisting the mounting seat 5 to be mounted on the bottom end of the single sofa, which includes three through holes 14 provided on the outer part of the top end of the clamping rod 12. The through holes 14 are the installation channels and active spaces of the movable balls 15. The movable balls 15 are movably connected in the through holes 14, and can protrude out of the through holes 14 and be clamped in the mounting holes on the bottom end of the single sofa, realizing the quick installation and fixing function of the sofa and the base. The middle part of the limiting cylinder 11 is slidingly connected with a stop rod 16, and the bottom end of the stop rod 16 is provided with a rotating handle for easy rotation.

[0039] The outer middle of the abutting rod 16 is fixedly connected with a limiting ring 17, the outer limiting ring 17 is slidably connected with the inner wall of the limiting cylinder 11, the limiting ring 17 is abutted against the top end position of the inner wall of the limiting cylinder 11, the correct position of the abutting rod 16 in the installation process and the working state of the fixed assembly are ensured, the abutting rod 16 is prevented from moving excessively, and the stability of the connection between the sofa and the base is affected. The outer top end of the abutting rod 16 is provided with a threaded groove 18, the threaded groove 18 is threadedly connected with the inner wall of the threaded groove 13, the threaded groove 18 is matched with the threaded groove 13 in the clamping rod 12, the threaded rotation and rotation movement of the abutting rod 16 in the clamping rod 12 are realized. The top end of the abutting rod 16 is fixedly connected with a clamping ball 19, the outer part of the clamping ball 19 is clamped with the outer part of the movable ball 15, the clamping ball 19 is fixedly connected with the top end of the abutting rod 16, in the process of upward movement of the abutting rod 16, the clamping ball 19 extrudes the movable ball 15, the movable ball 15 is protruded from the through hole 14 and clamped in the mounting hole at the bottom end of the single sofa, and the firm connection between the sofa and the base is realized.

[0040] The outer part of the abutting rod 16 is sleeved with a spring 20, the bottom end of the spring 20 is fixedly connected with the inner wall of the bottom end of the limiting cylinder 11, the top end of the spring 20 is fixedly connected with the bottom end of the limiting ring 17, the spring 20 provides elastic recovery force for the abutting rod 16, when the abutting rod 16 moves upward, the spring 20 is stretched, and the elastic potential energy is stored. After the sofa is installed, the elastic force of the spring 20 acts on the limiting ring 17, so that the abutting rod 16 has a downward movement tendency, so that the movable ball 15 always maintains the state of protruding from the through hole 14 and being clamped in the mounting hole at the bottom end of the sofa under the extrusion of the clamping ball 19, the movable ball 15 is prevented from loosening due to external force vibration or other factors, and the stability and reliability of the connection between the sofa and the base are further enhanced.

[0041] Working principle: when in use, the four mounting holes at the bottom end of the single sofa are aligned with the outer part of the clamping rod 12, the clamping rod 12 is inserted into the mounting hole at the bottom end of the single sofa, the abutting rod 16 is rotated, the threaded groove 18 provided on the outer part of the abutting rod 16 is aligned with the threaded groove 13 in the clamping rod 12, the threaded rotation is upward, until the limiting ring 17 on the outer part of the abutting rod 16 abuts against the top end position of the inner wall of the limiting cylinder 11, and the spring 20 is in the stretched state position. At this time, the clamping ball 19 is driven by the abutting rod 16 to extrude the movable ball 15 at the through hole 14 position through the outer curved surface, so that the movable ball 15 protrudes from the through hole 14 and is larger than the diameter of the clamping rod 12, the movable ball 15 is clamped in the mounting hole at the bottom end of the single sofa, and the base mechanism can be stably installed at the bottom end of the sofa.

[0042] After the base mechanism is installed, when the user needs to rotate the sofa, the fixed mounting seat 5 of the sofa can directly drive the gear disc 6 to rotate around the rotating shaft 4, at this time the gear disc 6 will extrude the outside of the round rod 10 with the external protruding round teeth, so that the round rod 10 is extruded to drive the telescopic rod 8 and the spring 9 to be compressed. When the sofa is rotated to the appropriate angle, the gear disc 6 stops rotating, at this time the round rod 10 will be clamped in the clamping groove between the external teeth of the gear disc 6 under the elastic force of the spring 9 and the telescopic rod 8, realizing that the sofa can be self-locked after being rotated to any angle, effectively preventing the sofa from being excessively rotated and unnecessarily shaken.

[0043] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the foregoing embodiments of the present application are described in detail, for those skilled in the art, it still can be modified for the technical solutions recorded in the foregoing embodiments, or for some of the technical features of the equivalent replacement, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A single sofa base swivel locking mechanism comprising a load ring seat (1), characterized in that: The inside of the load ring seat (1) is fixedly connected with a support frame (2), the top end of the support frame (2) is detachably connected with a fixed base (3), the middle part of the fixed base (3) is rotatably connected with a rotating shaft (4), the top end of the rotating shaft (4) is fixedly connected with a mounting seat (5), the bottom end of the mounting seat (5) is fixedly connected with a circular tooth disc (6), the top end of the fixed base (3) is fixedly connected with a plurality of positioning blocks (7), one side of the positioning block (7) close to the circular tooth disc (6) is fixedly connected with a telescopic rod (8), one side of the telescopic rod (8) close to the circular tooth disc (6) is fixedly connected with a circular rod (10), the top end of the mounting seat (5) is fixedly connected with a limiting cylinder (11) at four corners, the top end of the limiting cylinder (11) is fixedly connected with a clamping rod (12), the inside of the clamping rod (12) is provided with a threaded groove (13), and the outside of the clamping rod (12) is provided with a fixed assembly for assisting the mounting of the mounting seat (5) on the bottom end of the single sofa.

2. A single sofa base swivel locking mechanism according to claim 1, characterized in that: The fixed assembly comprises three through holes (14), and the three through holes (14) are arranged on the outside of the top end of the clamping rod (12), and the inside of the through hole (14) is movably connected with a movable ball (15).

3. A single sofa base swivel locking mechanism according to claim 2, wherein: The middle part of the limiting cylinder (11) is slidably connected with an abutting rod (16), the outer middle part of the abutting rod (16) is fixedly connected with a limiting ring (17), the outer top end of the abutting rod (16) is provided with a threaded pattern (18), the top end of the abutting rod (16) is fixedly connected with a clamping ball (19), the outside of the clamping ball (19) is clamped with the outside of the movable ball (15), and the outside of the abutting rod (16) is sleeved with a spring (20).

4. A single sofa base swivel locking mechanism according to claim 1, characterized in that: The middle inner wall of the circular tooth disc (6) is fixedly connected to the outside of the rotating shaft (4), and the outside of the circular rod (10) is clamped with the outside of the circular tooth disc (6).

5. A single sofa base swivel locking mechanism according to claim 1, characterized in that: The outside of the telescopic rod (8) is sleeved with a spring (9), one side of the spring (9) close to the circular tooth disc (6) is fixedly connected to the outside of the circular rod (10), and the other end of the spring (9) away from the circular tooth disc (6) is fixedly connected to one side of the positioning block (7) close to the circular tooth disc (6).

6. A single sofa base swivel locking mechanism according to claim 1, characterized in that: The bottom end of the circular rod (10) is slidably connected to the top end of the fixed base (3), and the bottom end of the circular tooth disc (6) is movably connected to the top end of the fixed base (3).

7. A single sofa base swivel locking mechanism according to claim 3, wherein: The outside of the threaded pattern (18) is threadedly connected to the inner wall of the threaded groove (13), and the outside of the limiting ring (17) is slidably connected to the inner wall of the limiting cylinder (11).

8. A single sofa base swivel locking mechanism according to claim 3, wherein: The bottom end of the spring (20) is fixedly connected to the inner wall of the limiting cylinder (11), and the top end of the spring (20) is fixedly connected to the bottom end of the limiting ring (17).

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