Seat rotating mechanism

Abstract

The utility model discloses a seat rotating mechanism which comprises a fixed part and a rotating part, the rotating part is movably connected with the fixed part; the fixing part comprises a first locking piece; the rotating part comprises a second locking piece; after being pressed, the second locking piece is meshed with the first locking piece after being contacted and extruded, so that the circumferential locking of the rotating part and the locking part is realized; according to the seat rotating mechanism provided by the utility model, the seat can be rotated at any angle relative to the seat legs through the rotating mechanism, and the position is locked after the seat is rotated, so that the practicability of the rotating seat is improved.

Description

Technical Field

[0001] This utility model relates to the field of seat accessories technology, and in particular to a seat rotation mechanism. Background Technology

[0002] A swivel chair is a chair with a rotating seat. By setting a rotating mechanism between the seat and the legs, the seat can rotate relative to the legs, thereby changing the orientation of the seat.

[0003] In the field of shower chairs, a rotating mechanism is also needed to enable the seat to rotate. For users with mobility impairments, a more convenient operation is required to enable the seat to rotate.

[0004] In existing seat rotation mechanisms, a fixed angle adjustment method is usually used to lock the seat after rotation. That is, it is generally only equipped with two sitting posture orientations, making it difficult to achieve seat rotation and locking at any angle. Utility Model Content

[0005] This utility model addresses the shortcomings of existing technologies by providing a seat rotation mechanism.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a seat rotation mechanism, comprising a fixed part and a rotating part;

[0007] The rotating part is movably connected to the fixed part;

[0008] The fixing part includes a first locking element;

[0009] The rotating part includes a second locking element;

[0010] When the second locking member is pressed, it contacts and engages with the first locking member, thereby achieving circumferential locking between the rotating part and the fixed part.

[0011] In the above scheme, preferably, the first locking member is provided with a plurality of first protrusions distributed in a circle and a first recess adjacent to the first protrusions.

[0012] The second locking member is provided with a second protrusion and a second recess adjacent to the first locking member, which are arranged facing each other and distributed circumferentially.

[0013] The first locking member and the second locking member are coaxially arranged.

[0014] In the above scheme, preferably, the rotating part is provided with a rotating shaft that is rotatably connected to the fixed part, and the fixed part is provided with a sliding hole that cooperates with the rotating shaft.

[0015] In the above scheme, preferably, the second locking member is guided and slidably disposed on the rotating shaft, and a reset member is provided between the second locking member and the fixing part.

[0016] In the above scheme, preferably, the second locking member includes a base plate, the base plate is provided with a plurality of guide grooves, and the rotating shaft is provided with a guide block that cooperates with the guide grooves.

[0017] In the above scheme, preferably, the rotating part includes a cover that restricts the displacement of the second locking member away from the first locking member.

[0018] In the above scheme, preferably, an adjustment unit is provided between the cover and the second locking member, and the adjustment unit includes an adjustment plate rotatably mounted on a rotating shaft;

[0019] The adjustment plate is provided with a plurality of first adjustment blocks that cooperate with the second locking member, and the second locking member is provided with a second adjustment block that contacts the first adjustment block after rotation.

[0020] In the above scheme, preferably, the adjusting plate is provided with an adjusting handle;

[0021] The cover is provided with an adjustment groove for the adjustment handle to move.

[0022] In the above scheme, preferably, one end of the rotating shaft is connected to the cover, and the other end is provided with a limiting plate after passing through a sliding hole.

[0023] In the above scheme, preferably, the first locking member is fixed on the fixed part, and the cover is provided to cover the first locking member.

[0024] The beneficial effects of this utility model are as follows: This utility model provides a seat rotation mechanism, through which the seat can be rotated at any angle relative to the seat legs, and the position is locked after rotation, thereby improving the practicality of the rotating seat; at the same time, the end-face contact locking method greatly improves the convenience and effectiveness of locking, and improves the locking accuracy. Attached Figure Description

[0025] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0026] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0027] Figure 3 This is an exploded perspective view of the present invention.

[0028] Figure 4 This is a three-dimensional structural diagram of the second locking component of this utility model. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments: See below Figures 1-4 A seat rotation mechanism includes a fixed part 1 and a rotating part 2. The fixed part 1 can be fixed on the chair leg frame, and the rotating part 2 can be fixed on the chair seat. The rotating part 2 is movably connected to the fixed part 1. Specifically, the rotating part 2 can rotate on the fixed part 1. When the chair seat and the chair leg frame are assembled, the rotation of the chair seat can be achieved through the cooperation of the rotating part 2 and the fixed part 1.

[0030] Furthermore, the mounting positions of the fixing part 1 and the rotating part 2 can be interchanged, that is, the fixing part 1 is fixed to the chair seat, and the rotating part 2 is fixed to the chair leg frame, which can also realize the rotation of the chair seat relative to the chair leg frame.

[0031] The fixing part 1 includes a base plate 11, which is used to fix and connect with the chair seat or chair leg frame. A first locking member 101 is fixedly provided on the base plate 11. The first locking member 101 is a ring-shaped member, one end face of which is fixedly connected to the base plate 11 by welding or other means. The other side is evenly provided with a plurality of first protrusions 102 and first recesses 103 in the circumferential direction. The first protrusions 102 and the first recesses 103 are adjacent to each other and continuously connected to form a continuous annular undulating surface, such as... Figure 3 As shown.

[0032] The first locking member 101 is hollow in the center, and the base plate 11 is provided with a sliding hole 104 at the center. The sliding hole 104 is concentric with the center of the first locking member 101.

[0033] The rotating part 2 includes a rotating shaft 3 and a second locking member 201 slidably disposed on the rotating shaft 3. The lower end of the rotating shaft 3 is provided with a sliding hole 104 and a limiting plate 302 is fixed thereon. The upper end is provided with a cover 4. The second locking member 201 is slidably disposed between the cover 4 and the first locking member 101. As can be seen from the above, the rotating part 2 can rotate relative to the fixed part 1 and slide relative to it to a certain extent after the rotating shaft 3 passes through the center hole and the sliding hole 104 of the first locking member 101 in sequence.

[0034] The second locking member 201 is placed inside the cover 4 and is guided and slidably disposed on the rotating shaft 3. The second locking member 201 includes a base plate 204 facing the upper end face of the cover 4. A plurality of guide grooves 205 are provided around the circumference on the inner wall of the base plate 204. A guide block 301 that cooperates with the guide grooves 205 is provided on the axial surface of the rotating shaft 3. Thus, the second locking member 201 cooperates with the guide block 301 through the guide grooves 205 of the base plate 204 to achieve its guided sliding relative to the rotating shaft 3.

[0035] The second locking member 201 has a plurality of second protrusions 202 and second recesses 203 evenly distributed around its circumference on the side facing the first locking member 101. The first locking member 101 and the second locking member 201 are coaxially arranged. The second protrusions 202 and the second recesses 203 are adjacent to each other and continuously connected end to end to form a concave-convex surface, and the concave-convex surface corresponds to the first locking member 101. The size of the second protrusions 202 and the second recesses 203 is preferably the same as that of the first protrusions 102 and the first recesses 103. Since the sizes of 03 are the same, when the second locking member 201 slides toward one end of the first locking member 101, when the second protrusion 202 engages with the first recess 103, the first locking member 101 and the second locking member 201 are locked in the circumferential direction, so that the rotating part 2 is locked in the circumferential direction of the fixed part 1 and cannot rotate; when the second locking member 201 slides away from the end of the first locking member 101, the second protrusion 202 disengages from the first recess 103, and the rotating part 2 can rotate relative to the fixed part 1.

[0036] As can be seen from the above, after the second locking member 201 is pressed, it contacts and engages with the first locking member 101, thereby achieving circumferential locking between the rotating part 2 and the locking part 1.

[0037] A reset member is provided between the second locking member 201 and the fixing part 1, specifically, as follows: Figure 2 As shown, a reset member is provided between the lower end face of the base plate 204 of the second locking member 201 and the upper end face of the base plate 11. The reset member is a spring. In the initial state, when the rotating part 2 is not compressed, the second locking member 201 moves away from the first locking member 101 under the spring force of the reset member. At this time, the rotating part 2 is in a state where it can rotate relative to the fixed part 1.

[0038] The cover 4 is configured to cover the first locking member 101. Specifically, when the reset member is in a free state, that is, when the first locking member 101 is disengaged from the second locking member 201, the lower end face of the cover 4 is a certain distance away from the upper end face of the base plate 11, so that the cover 4 can drive the rotating part 2 to press down. The outer edge of the cover 4 is wider than the first locking member 101. When the cover 4 is pressed down, it can cover the first locking member 101 to prevent interference with the first locking member 101.

[0039] An adjustment unit 5 is provided between the cover 4 and the second locking member 201. The adjustment unit 5 includes an adjustment plate 501 rotatably mounted on the rotating shaft 3. The upper end face of the adjustment plate 501 abuts against the inner end face of the cover 4, and the lower end face is provided with a plurality of first adjustment blocks 502 that cooperate with the second locking member 201. The first adjustment block 502 is a protrusion protruding to one side of the second locking member 201.

[0040] The upper surface of the base plate 204 of the second locking member 201 is provided with a second adjusting block 206 that contacts the first adjusting block 502 after rotation. The second adjusting block 206 is an upwardly protruding protrusion, such as... Figure 3 As shown; when the second adjusting block 206 and the first adjusting block 502 are adjusted and interleaved by the adjusting plate 501, the pressure of the reset member is released. At this time, when the rotating part 2 is not under pressure, it can rotate freely relative to the fixed part 1. When the adjusting plate 501 rotates, the first adjusting block 502 and the second adjusting block 206 abut against each other. At this time, the second locking member 201 slides down to compress the reset member, so that the reset member is subjected to initial pressure. At this time, the second protrusion 202 of the second locking member 201 engages with the first recess 103 of the first locking member 101, so that the rotating part 2 is fixed relative to the fixed part 1 and cannot rotate freely.

[0041] The adjusting plate 501 is provided with an adjusting handle 503; the side wall of the cover 4 is provided with an adjusting groove 401 for the adjusting handle 503 to move laterally, and the adjusting groove 401 is a transverse arc groove; in this embodiment, two first adjusting blocks 502 are preferably provided, and two second adjusting blocks 206 are provided at the same position on the circumference, so that after the adjusting plate 501 rotates, the two pairs of first adjusting blocks 502 and second adjusting blocks 206 simultaneously abut against each other to achieve stable adjustment; one end of the adjusting groove 401 is a locking position, and the other end is a releasing position, such as Figure 3 As shown, when the adjusting handle 503 is moved to the locked position, the first adjusting block 502 and the second adjusting block 206 abut against each other, so that the second locking member 201 engages and locks with the first locking member 101, thereby locking the rotating part 2 relative to the fixed part 1; conversely, when the adjusting handle 503 is moved to the released position, the first adjusting block 502 and the second adjusting block 206 are interleaved, the reset member is reset, so that the first locking member 101 and the second locking member 201 are disengaged, and the rotating part 2 rotates relative to the fixed part 1.

[0042] In this embodiment, the base plate 11 can be fixed to the chair leg frame, and the cover 4 can be fixed to the chair seat. Then, the chair seat is installed on the chair leg frame through the cooperation of the rotating part 2 and the fixing part 1. In use, the adjustment handle 503 is moved to the loose position. Then, when the human body makes slight contact with the chair seat without putting force on it, the angle of the chair seat can be adjusted by rotating the body. After the adjustment is completed, the human body sits on the chair seat, the reset part is compressed, and the first locking part 101 and the second locking part 201 engage and lock. In addition, the rotating part 2 is relatively fixed and cannot be rotated. Then, after the adjustment handle 503 is moved to the locked position, when the human body stands up, the chair seat can still be locked and cannot be rotated. After the adjustment handle 503 is moved to the loose position again, the chair seat resumes its rotation adjustment function relative to the chair leg frame.

[0043] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A seat rotation mechanism, characterized in that: It includes a fixed part (1) and a rotating part (2); The rotating part (2) is movably connected to the fixed part (1); The fixing part (1) includes a first locking member (101); The rotating part (2) includes a second locking member (201); After being pressed, the second locking member (201) contacts and engages with the first locking member (101) to achieve circumferential locking between the rotating part (2) and the fixed part (1).

2. The seat rotation mechanism according to claim 1, characterized in that: The first locking member (101) is provided with a plurality of first protrusions (102) distributed in a circle and a first recess (103) adjacent to the first protrusions (102). The second locking member (201) is provided with a second protrusion (202) that is arranged facing the first locking member (101) and distributed circumferentially, and a second recess (203) adjacent to the second protrusion (202). The first locking member (101) and the second locking member (201) are coaxially arranged.

3. The seat rotation mechanism according to claim 1, characterized in that: The rotating part (2) is provided with a rotating shaft (3) that is rotatably connected to the fixed part (1), and the fixed part (1) is provided with a sliding hole (104) that cooperates with the rotating shaft (3).

4. A seat rotation mechanism according to claim 3, characterized in that: The second locking member (201) is guided and slidably disposed on the rotating shaft (3), and a reset member is provided between the second locking member (201) and the fixing part (1).

5. A seat rotation mechanism according to claim 3, characterized in that: The second locking member (201) includes a base plate (204), on which a plurality of guide grooves (205) are provided, and on the rotating shaft (3) a guide block (301) that cooperates with the guide grooves (205).

6. A seat rotation mechanism according to any one of claims 1-5, characterized in that: The rotating part (2) includes a cover (4) that restricts the displacement of the second locking member (201) away from the first locking member (101).

7. A seat rotation mechanism according to claim 6, characterized in that: An adjustment unit (5) is provided between the cover (4) and the second locking member (201), and the adjustment unit (5) includes an adjustment plate (501) rotatably mounted on the rotating shaft (3). The adjusting plate (501) is provided with a plurality of first adjusting blocks (502) that cooperate with the second locking member (201), and the second locking member (201) is provided with a second adjusting block (206) that contacts the first adjusting block (502) after rotation.

8. A seat rotation mechanism according to claim 7, characterized in that: The adjusting plate (501) is provided with an adjusting handle (503); The cover (4) is provided with an adjustment groove (401) for the adjustment handle (503) to move.

9. A seat rotation mechanism according to claim 3, characterized in that: One end of the rotating shaft (3) is connected to the cover (4), and the other end is provided with a sliding hole (104) and a limiting plate (302).

10. A seat rotation mechanism according to claim 6, characterized in that: The first locking member (101) is fixed on the fixing part (1), and the cover (4) is provided to cover the first locking member (101).

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