Rotary chair capable of automatically returning

Abstract

The utility model discloses an automatic return rotary chair which comprises a chair column, an automatic swing mechanism is arranged in the chair column, one end of a telescopic rod is fixedly connected with the inner wall of a first circular ring, the other end of the telescopic rod is fixedly connected with the middle of the outer wall of a semicircular ring, and a rhombic block is arranged between the two semicircular rings. Balls are symmetrically arranged at the front end and the rear end of the rhombic block. By arranging a rotating column, a rhombus block, a ball, a semicircular ring, a spring and a first circular ring, the rhombus block fixedly connected with the rotating column is driven to rotate, when a certain angle is reached, the ball makes contact with the inner wall of the semicircular ring to roll, and the two ends of the rhombus block push the semicircular ring in the direction close to the first circular ring; at the moment, the spring between the semicircular ring and the first circular ring is compressed; and when the force is removed, the spring can automatically restore to the original shape, the rhombic block can be extruded and forced to return to the initial state, and at the moment, the automatic return effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic return, and particularly relates to a rotatable chair capable of automatically returning to its original position. Background Art

[0002] A "chair" is a piece of furniture for daily use, a seat with a backrest and armrests. Modern chairs pursue beauty and fashion. Some chairs are no longer simply used as seats. With the combination of technology, human life has become more convenient.

[0003] Most of the existing chairs on the market are fixed or cannot return to their original positions after rotation. Technical personnel in this field have provided a rotatable chair capable of automatically returning to its original position to solve the problems raised in the above background art. Content of the Utility Model

[0004] The purpose of the utility model is to provide a rotatable chair capable of automatically returning to its original position, which can achieve the effect of automatic rotation.

[0005] To achieve the above purpose, a rotatable chair capable of automatically returning to its original position is provided, including: a chair column, an automatic rotation mechanism is arranged inside the chair column, the automatic rotation mechanism includes a rotating column, a first ring, a spring, a telescopic rod, a semi-circular ring, a rhombic block and a ball. The left and right sides of the inner wall of the first ring are symmetrically and fixedly connected with springs. One end of the spring away from the first ring is fixedly connected with a semi-circular ring. A telescopic rod is arranged inside the spring. One end of the telescopic rod is fixedly connected with the inner wall of the first ring, and the other end of the telescopic rod is fixedly connected with the middle part of the outer wall of the semi-circular ring. A rhombic block is arranged at the middle position between the two semi-circular rings. Balls are symmetrically arranged at the front and rear ends of the rhombic block. The middle part of the rhombic block is fixedly connected with a rotating column.

[0006] According to the rotatable chair capable of automatically returning to its original position, a connecting plate is fixedly connected to the top of the rotating column. A first through hole is opened at the edge of the connecting plate. A screw is arranged below the first through hole. A bottom plate is arranged above the connecting plate. A threaded hole is opened in the middle of the bottom plate. The screw passes through the first through hole and is threadedly connected with the threaded hole. A first groove is arranged at the edge of the bottom plate.

[0007] According to the rotatable chair capable of automatically returning to its original position, a reinforcement mechanism is arranged below the automatic rotation mechanism. The reinforcement mechanism includes a second ring, a connecting rod and a third ring. The inner wall of the second ring is fixedly connected with a connecting rod. One end of the connecting rod away from the second ring is fixedly connected with a third ring. The inner wall of the third ring is rotatably connected with the rotating column.

[0008] According to the described rotatable chair with automatic return, a second groove is provided in the inner wall at the bottom of the chair column, and chair legs are fixedly connected to the bottom outer wall of the chair column. The number of chair legs is three, and they are evenly arranged on the chair column.

[0009] According to the described rotatable chair with automatic return, the inner wall of the chair column is fixedly connected to the outer side walls of the first ring and the second ring, and the bottom end of the rotating column is rotatably connected to the second groove.

[0010] According to the described rotatable chair with automatic return, the number of threaded holes is multiple and they are evenly arranged on the bottom plate. The number of first through holes is multiple and they are evenly arranged on the connecting plate. The number of screws is multiple.

[0011] According to the described rotatable chair with automatic return, the connecting rod is square, and the number of connecting rods is multiple and they are evenly arranged.

[0012] Beneficial effects:

[0013] In the present utility model, by providing a rotating column, a diamond-shaped block, a ball, a semi-circular ring, a spring and a first ring, the diamond-shaped block fixedly connected to the rotating column is driven to rotate. When a certain angle is reached, the ball contacts and rolls on the inner wall of the semi-circular ring, and both ends of the diamond-shaped block push the semi-circular ring towards the direction close to the first ring. At this time, the spring between the semi-circular ring and the first ring is compressed; when the force is removed, since the spring will automatically return to its original state, the diamond-shaped block will be squeezed and forced to return to the initial state, and at this time, the automatic return effect is achieved.

[0014] The additional aspects and advantages of the present utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the present utility model. Description of the drawings

[0015] The following further describes the present utility model in conjunction with the drawings and embodiments;

[0016] Figure 1 It is a split view of the internal structure of a rotatable chair with automatic return according to the present utility model;

[0017] Figure 2 It is Figure 1 an enlarged view of part A of

[0018] Figure 3 It is an enlarged view of the automatic rotation mechanism of a rotatable chair with automatic return according to the present utility model;

[0019] Figure 4 It is an enlarged view of the bottom of the chair column of a rotatable chair with automatic return according to the present utility model;

[0020] Figure 5This is a structural combination display diagram of a rotatable chair with automatic return function according to the present utility model;

[0021] Figure 6 This is a seat display diagram of a rotatable chair with automatic return function according to the present utility model.

[0022] Legend:

[0023] 1. Chair column; 2. Chair leg; 3. Bottom plate; 4. First groove; 5. Threaded hole; 6. Connecting plate; 7. First through hole; 8. Screw; 9. Rotating column; 10. First ring; 11. Spring; 12. Telescopic rod; 13. Semi-circular ring; 14. Rhombic block; 15. Ball; 16. Second ring; 17. Connecting rod; 18. Third ring; 19. Second groove. Detailed implementation manners

[0024] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The function of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it should not be construed as a limitation on the protection scope of the present utility model.

[0025] Refer to Figures 1-6, in an embodiment of the present utility model, an automatically retractable rotating chair includes a chair column 1. An automatic rotation mechanism is provided inside the chair column 1. The automatic rotation mechanism includes a rotating column 9, a first ring 10, a spring 11, a telescopic rod 12, a semi-ring 13, a rhombic block 14, and a ball 15. Springs 11 are symmetrically and fixedly connected to the left and right sides of the inner wall of the first ring 10. The springs 11 play a role in rebounding. When the chair rotates, the springs 11 will be compressed. After removing the force on the chair, it is the rebounding of the springs 11 that enables the chair to automatically return to its original position. One end of the spring 11 away from the first ring 10 is fixedly connected to a semi-ring 13. A telescopic rod 12 is arranged inside the spring 11. The telescopic rod 12 plays a role in limiting. When the spring 11 is compressed, the telescopic rod is simultaneously compressed. One end of the telescopic rod 12 is fixedly connected to the inner wall of the first ring 10, and the other end of the telescopic rod 12 is fixedly connected to the middle of the outer wall of the semi-ring 13. A rhombic block 14 is arranged at the middle position between the two semi-rings 13. Balls 15 are symmetrically arranged at the front and rear ends of the rhombic block 14. The balls 15 can roll on the inner wall of the semi-ring 13. The middle of the rhombic block 14 is fixedly connected to a rotating column 9. The rotation of the rotating column 9 drives the rotation of the rhombic block 14. The top of the rotating column 9 is fixedly connected to a connecting plate 6. The rotation of the bottom plate 3 drives the rotation of the rotating column 9. A first through hole 7 is provided at the edge of the connecting plate 6. A screw 8 is arranged below the first through hole 7. A bottom plate 3 is arranged above the connecting plate 6. A threaded hole 5 is provided in the middle of the bottom plate 3. The screw 8 passes through the first through hole 7 and is threadedly connected to the threaded hole 5. The connecting plate 6 and the bottom plate 3 are fixedly connected through the screw 8 and the threaded hole 5, but they can also be flexibly disassembled. A first groove 4 is arranged at the edge of the bottom plate 3. The first groove 4 is inserted into the top end of the chair column 1. The chair column 1 can rotate therein and also plays a supporting role.

[0026] A reinforcement mechanism is arranged below the automatic rotation mechanism to play a role in strengthening and stabilizing the rotating column 9 during the working process. The reinforcement mechanism includes a second ring 16, a connecting rod 17, and a third ring 18. A connecting rod 17 is fixedly connected to the inner wall of the second ring 16. One end of the connecting rod 17 away from the second ring 16 is fixedly connected to a third ring 18. The inner wall of the third ring 18 is rotationally connected to the rotating column 9; a second groove 19 is arranged on the inner wall of the bottom of the chair column 1. Chair legs 2 are fixedly connected to the bottom of the outer wall of the chair column 1. The number of chair legs 2 is three and they are evenly arranged on the chair column 1; the inner wall of the chair column 1 is fixedly connected to the outer side walls of the first ring 10 and the second ring 16. The bottom end of the rotating column 9 is rotationally connected to the second groove 19; the number of threaded holes 5 is multiple and they are evenly arranged on the bottom plate 3. The number of first through holes 7 is multiple and they are evenly arranged on the connecting plate 6. The number of screws 8 is multiple; the connecting rod 17 is square and the number of them is multiple and they are evenly arranged.

[0027] Working principle: To achieve the automatic rotation function, when someone sits on the chair and rotates the chair, the rotating column 9 is driven to rotate by the base, and the diamond-shaped block 14 fixedly connected to the rotating column 9 is driven to rotate. When a certain angle is reached, the ball 15 contacts the inner wall of the semi-circular ring 13 and rolls therein. The two ends of the diamond-shaped block 14 push the semi-circular ring 13 towards the direction close to the first circular ring 10. At this time, the spring 11 between the semi-circular ring 13 and the first circular ring 10 is compressed; when the force on the chair is removed, since the spring 11 will automatically return to its original state, the diamond-shaped block 14 will be squeezed and forced to return to the initial state, and at this time, the chair realizes automatic rotation.

[0028] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art in the said technical field, various changes can be made without departing from the gist of the present invention.

Claims

1. An automatically retractable rotating chair, comprising: Chair column (1), characterized in that an automatic rotation mechanism is provided inside the chair column (1), and the automatic rotation mechanism includes a rotating column (9), a first ring (10), a spring (11), a telescopic rod (12), a semi-ring (13), a diamond block (14) and a ball (15). Symmetrically fixed connections of springs (11) are provided on the left and right sides of the inner wall of the first ring (10). One end of the spring (11) away from the first ring (10) is fixedly connected to a semi-ring (13). A telescopic rod (12) is provided inside the spring (11). One end of the telescopic rod (12) is fixedly connected to the inner wall of the first ring (10), and the other end of the telescopic rod (12) is fixedly connected to the middle of the outer wall of the semi-ring (13). A diamond block (14) is provided at the middle position between the two semi-rings (13). Balls (15) are symmetrically provided at the front and rear ends of the diamond block (14). The middle of the diamond block (14) is fixedly connected to a rotating column (9).

2. The automatic return rotary chair according to claim 1, wherein, A connecting plate (6) is fixedly connected to the top of the rotating column (9). A first through hole (7) is provided at the edge of the connecting plate (6). A screw (8) is provided below the first through hole (7). A bottom plate (3) is provided above the connecting plate (6). A threaded hole (5) is provided in the middle of the bottom plate (3). The screw (8) passes through the first through hole (7) and is threadedly connected to the threaded hole (5). A first groove (4) is provided at the edge of the bottom plate (3).

3. The automatically returnable rotating chair according to claim 1, characterized in that, A reinforcing mechanism is provided below the automatic rotation mechanism. The reinforcing mechanism includes a second ring (16), a connecting rod (17) and a third ring (18). A connecting rod (17) is fixedly connected to the inner wall of the second ring (16). One end of the connecting rod (17) away from the second ring (16) is fixedly connected to a third ring (18). The inner wall of the third ring (18) is rotatably connected to the rotating column (9).

4. The automatically-returnable rotating chair according to claim 3, wherein, A second groove (19) is provided on the bottom inner wall of the chair column (1). Chair legs (2) are fixedly connected to the bottom of the outer wall of the chair column (1). The number of chair legs (2) is three, and they are evenly arranged on the chair column (1).

5. The automatically returnable rotating chair according to claim 4, characterized in that, The inner wall of the chair column (1) is fixedly connected to the outer side walls of the first ring (10) and the second ring (16). The bottom end of the rotating column (9) is rotatably connected to the second groove (19).

6. The automatic return rotary chair according to claim 2, characterized in that The number of the threaded holes (5) is multiple, and they are evenly arranged on the bottom plate (3). The number of the first through holes (7) is multiple, and they are evenly arranged on the connecting plate (6). The number of the screws (8) is multiple.

7. The automatic return rotary chair according to claim 3, wherein The connecting rod (17) is square, and the number of the connecting rods is multiple and they are evenly arranged.

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