Chair and chair seat rotation locking structure thereof

Abstract

The utility model discloses a chair and a chair seat rotation locking structure thereof, the chair seat rotation locking structure comprises a tray and a rotation assembly, the tray is installed on the rotation assembly and can rotate on the rotation assembly, the chair seat rotation locking structure further comprises a lock rod, the lock rod is installed on the tray in a sliding mode, one end of the lock rod is connected with the rotation assembly in a pluggable mode, and the other end of the lock rod extends out of the tray; the locking rod is inserted into the rotating assembly to lock the tray and the rotating assembly, so that the tray and the rotating assembly are fixed. Through the arrangement, a user can lock and unlock the tray and the rotating seat in a mode of pulling and pulling the lock rod, so that the operation means of the user is simpler; in addition, the structure needs fewer components, the manufacturing difficulty of the components is lower, the assembling difficulty of the structure is lower, and the whole structure is more compact and simpler.

Description

Technical Field

[0001] The utility model relates to the field of furniture, in particular to a chair and a seat rotation locking structure thereof. Background Art

[0002] A swivel chair is a type of seating that is widely used by people in scenarios such as work, study, and entertainment. The seat and backrest can rotate relative to the support legs to adjust the user's facing direction and make the user's movements smoother.

[0003] The prior art with publication number CN108968465A discloses a seat rotation locking mechanism, including a locking mechanism installed on a rotating disk in the seat rotation mechanism and at least one locking hole opened on the outer circumference of a fixed disk in the seat rotation mechanism, characterized in that the locking mechanism includes: a lock bracket fixed on the rotating disk; at least two or more locking pins horizontally movably arranged in the lock bracket, the first end of the locking pin is a conical cylindrical structure; the first end of the locking pin is inserted into the locking hole, and the conical cylindrical structure of the first end of the locking pin is wedged with the locking hole to achieve gapless locking.

[0004] In the prior art, the locking pin is separately provided in the seat and requires other mechanisms to drive the locking pin, which makes the structure of the locking mechanism more complicated and requires higher coordination of the various components. Utility Model Content

[0005] In order to solve the problem in the prior art that the structure for locking the rotation of the chair seat is relatively complex and the requirements for the coordination of the various components are high, the purpose of the present utility model is to provide a chair and a chair seat rotation locking structure thereof, which has a simpler structure and simpler requirements for the various components.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a seat rotation locking structure, including a tray and a rotating assembly, the tray is installed on the rotating assembly, the tray can rotate on the rotating assembly, and also includes a locking rod, the locking rod is slidably installed on the tray, one end of the locking rod is plugged in and connected to the rotating assembly, and the other end of the locking rod extends from the tray; the locking rod inserted into the rotating assembly can lock the tray and the rotating assembly, so that the tray and the rotating assembly are fixed.

[0007] Preferably, the rotating assembly includes a rotating seat, a pressure plate and a fixed seat. A neck is raised at the center of the rotating seat, and the fixed seat is sleeved on the neck. The neck of the rotating seat passes through the tray, and the tray presses the fixed seat. The fixed seat is clamped with the tray, and the pressure plate is fixedly connected to the neck. The pressure plate presses the tray, and the rotating seat and the pressure plate clamp the tray.

[0008] Preferably, a first bayonet is provided on the rotating seat, a second bayonet is provided on the fixed seat, and a first avoidance hole for avoiding movement of the locking rod is provided on the tray; one end of the locking rod can be inserted into the first bayonet and the second bayonet.

[0009] Preferably, a first sliding groove is provided in the tray, the locking rod is slidably engaged with the first sliding groove, and a reset member is provided between the tray and the locking rod, and the reset member is used to drive the locking rod to be plugged into the rotating assembly.

[0010] Preferably, the first slide groove includes a first limiting part and a second limiting part, and the distance between the two first limiting parts is smaller than the distance between the two second limiting parts; the locking rod includes an inserting part and a positioning part, the inserting part of the locking rod matches the first limiting part, and the positioning part of the locking rod matches the second limiting part.

[0011] Preferably, the reset assembly includes a positioning plate and an elastic member, the positioning plate is located above the first slide groove, the positioning plate is fixedly connected to the tray, and both ends of the elastic member are respectively connected to the locking rod and the positioning plate.

[0012] Preferably, the positioning plate is in sliding engagement with the locking rod.

[0013] Preferably, a driving portion is protruded downward from the end of the locking rod, and the driving portion is located outside the tray.

[0014] Preferably, a second avoidance hole is provided on the tray, and one end of the locking rod can extend out of the tray through the second avoidance hole; the second avoidance hole is located at the front of the tray.

[0015] A chair comprises the above-mentioned seat rotation locking structure.

[0016] The beneficial effects of the technical solution of the present invention are as follows: the user can lock and unlock the tray and the rotating seat by pulling out the locking rod, which makes the user's operation method simpler; and the above structure requires fewer components, the manufacturing difficulty of the components is lower, the structural assembly difficulty is lower, and the overall structure is more compact and simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the seat structure Figure 1 ;

[0018] Figure 2 Schematic diagram of the seat structure Figure 2 ;

[0019] Figure 3 Schematic diagram of the pallet structure Figure 1 ;

[0020] Figure 4 Schematic diagram of the pallet structure Figure 2 ;

[0021] Figure 5 Schematic diagram of the locking rod structure Figure 1 ;

[0022] Figure 6 Schematic diagram of the locking rod structure Figure 2 ;

[0023] Figure 7 Schematic diagram of the lock plate structure Figure 1 ;

[0024] Figure 8 Schematic diagram of the lock plate structure Figure 2 ;

[0025] Figure 9 Schematic diagram of the structure of the rotating component.

[0026] Reference numerals: 1, tray; 11, accommodating portion; 12, slot; 13, through hole; 14, first avoidance hole; 15, first slide groove; 151, first limiting portion; 152, second limiting portion; 16, second avoidance hole; 17, fifth limiting portion;

[0027] 2. Locking rod; 21. Second sliding groove; 22. Fourth limiting portion; 23. First positioning column; 24. Driving portion; 25. Connecting portion; 26. Positioning portion;

[0028] 3. Positioning plate; 31. Second accommodating groove; 32. Second positioning column; 33. Third limiting portion;

[0029] 4. Elastic parts;

[0030] 5. Rotating assembly; 51. Rotating seat; 52. Pressing plate; 53. Fixed seat; 54. Snap-on protrusion; 55. First snap-on socket; 56. Second snap-on socket. DETAILED DESCRIPTION

[0031] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.

[0032] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like to indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, unless otherwise specified, "plurality" means two or more, unless expressly limited otherwise.

[0034] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0035] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature. Example

[0036] like Figures 1 to 9The seat rotation locking structure shown includes a tray 1, a rotating component 5 and a locking rod 2. The tray 1 is installed on the rotating component 5, and the tray 1 can rotate on the rotating component 5. The locking rod 2 is slidably installed on the tray 1. One end of the locking rod 2 is plugged and unplugged into the rotating component 5, and the other end of the locking rod 2 extends from the tray 1; the insertion of the locking rod 2 into the rotating component 5 can lock the tray 1 and the rotating component 5, so that the tray 1 and the rotating component 5 are fixed.

[0037] This arrangement makes the structure required for locking the tray 1 from rotating simpler, and the user can lock and unlock the tray 1 and the rotating seat by pulling the locking rod 2, making the user's operation method simpler.

[0038] In this embodiment, Figure 1 and Figure 9 As shown, the rotating assembly 5 includes a fixed seat 53, a rotating seat 51 and a pressure plate 52. The rotating seat 51 has a raised neck at the center, and the fixed seat 53 is sleeved on the neck. The neck of the rotating seat 51 passes through the tray 1, and the tray 1 presses the fixed seat 53. The fixed seat 53 is clamped with the tray 1, and the pressure plate 52 is fixedly connected to the neck. The pressure plate 52 presses the tray 1, and the rotating seat 51 and the pressure plate 52 clamp the tray 1.

[0039] Furthermore, a through hole 13 is formed on the tray 1 , the neck of the rotating seat 51 extends into the through hole 13 of the tray 1 , and the pressing plate 52 is fixed to the top surface of the neck by fasteners.

[0040] In this embodiment, Figures 1 to 5 As shown, the top of the tray 1 is recessed downward to form an action space, and an accommodating portion 11 is protruded in the action space. A first accommodating groove 111 is provided at the bottom of the tray 1, and the first accommodating groove 111 is located in the accommodating portion 11. A plurality of card slots 12 are provided on the top wall of the first accommodating groove 111, and a through hole 13 passes through the accommodating portion 11; a plurality of card protrusions 54 are protruded on the fixing seat 53, and the rotating assembly 5 is arranged in the first accommodating groove 111, and the card protrusions 54 on the fixing seat 53 are plugged into the card slots 12 in the first accommodating groove 111.

[0041] Furthermore, a first avoidance hole 14 connected to the first accommodating groove 111 is provided on the accommodating portion 11, and a second avoidance hole 16 penetrating the tray 1 is provided on the inner wall of the action space. One end of the locking rod 2 can pass through the first avoidance hole 14 and be plugged into the rotating assembly 5, and the other end of the locking rod 2 can extend from the action space through the second avoidance hole 16.

[0042] In this embodiment, the second avoidance hole 16 is located at the front of the tray, which is convenient for user operation.

[0043] In this embodiment, Figure 9As shown, the rotating seat 51 is provided with a first slot 55, which is plugged into the locking rod 2. Furthermore, the fixed seat 53 is provided with a second slot 56, and one end of the locking rod 2 can be inserted into the first slot 55 and the second slot 56. This arrangement can more effectively restrict the rotation of the tray 1.

[0044] In this embodiment, Figure 1 As shown, a first slide groove 15 is provided in the movement space of the tray 1, and the lock rod 2 slides in the first slide groove 15. A reset member is provided between the tray 1 and the lock rod 2, and the reset member is used to drive the lock rod 2 to plug into the rotating assembly 5. This arrangement facilitates limiting the movement of the lock rod 2.

[0045] Further, such as Figures 1 to 6 As shown, the first slide 15 includes a first limiting portion 151 and a second limiting portion 152. The distance between the two first limiting portions 151 is smaller than the distance between the two second limiting portions 152. The lock lever 2 includes an inserting portion 25 and a positioning portion 26. The inserting portion 25 of the lock lever 2 matches the first limiting portion 151, and the positioning portion 26 of the lock lever 2 matches the second limiting portion 152. This arrangement can limit the range of movement of the lock lever 2 on the tray 1.

[0046] In this embodiment, Figure 1 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 As shown, the reset assembly includes a positioning plate 3 and an elastic member 4. The positioning plate 3 is located above the first slide groove 15 and is fixedly connected to the tray 1. The two ends of the elastic member 4 are respectively connected to the locking rod 2 and the positioning plate 3. This arrangement can effectively limit the movement of the locking rod 2.

[0047] Furthermore, the elastic member 4 is a spring, the ends of which respectively abut against the lock bar 2 and the positioning plate 3. A first positioning post 23 protrudes from the lock bar 2, and a second positioning post 32 protrudes from the positioning plate 3. The ends of the spring are respectively sleeved on the first positioning post 23 and the second positioning post 32. This arrangement can make the reset of the lock bar 2 more stable.

[0048] In this embodiment, the positioning plate 3 and the locking rod 2 are slidably matched. Figure 5 As shown, a second sliding groove 21 is provided on the top of the locking rod 2. Figure 7 and Figure 8 As shown, the positioning plate 3 has a downwardly protruding third stopper 33 that slidably engages with the second slide groove 21. The first positioning post 23 is disposed on the inner wall of the second slide groove 21. The third stopper 33 defines a second receiving groove 31 facing the first positioning post 23. The second positioning post 32 is disposed on the inner wall of the second receiving groove 31. This arrangement makes the structure more compact and the movement of the locking lever 2 more stable.

[0049] Further, such as Figure 5 and Figure 6 As shown, a fourth limiting portion 22 is protruded from the second sliding groove 21 . The fourth limiting portion 22 is located in the second accommodating groove 31 , and the first positioning column 23 is disposed on the fourth limiting portion 22 .

[0050] Furthermore, the fourth limiting portion 22 is U-shaped, the first positioning column 23 is located in the fourth limiting portion 22, and the spring extends into the fourth limiting portion 22. This arrangement makes the above structure more compact.

[0051] In this embodiment, Figure 3 As shown, a fifth limiting portion 17 is protruded from the bottom of the first chute 15, and the lock rod 2 is pressed on the fifth limiting portion 17. The fifth limiting portion 17 and the positioning plate 3 can limit the horizontal movement of the lock rod 2. This arrangement makes the unlocking action smoother and more accurate.

[0052] In this embodiment, Figure 5 and Figure 6 As shown, one end of the lock rod 2 protrudes downward with a driving portion 24, which is located outside the tray 1; a finger groove is provided on the driving portion 24 to support and match the user's fingers, making it easy for the user to pull the lock rod 2.

[0053] A seat includes the above-mentioned seat rotation locking result, and the seat also includes a seat back and a lifting gas rod. The telescopic end of the lifting gas rod is installed on the rotating seat 51 of the rotating assembly 5, the supporting foot is installed on the cylinder body of the lifting gas rod, the seat back is installed at the tail of the tray 1, and a seat plate is installed on the top of the tray 1, and the seat plate covers the movement space.

[0054] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0055] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention.

Claims

1. A seat rotation locking structure, comprising a tray (1) and a rotation assembly (5), wherein the tray (1) is mounted on the rotation assembly (5), and the tray (1) is capable of rotating on the rotation assembly (5), and is characterized in that: The utility model further comprises a locking rod (2), which is slidably mounted on the tray (1), one end of the locking rod (2) is plug-in-connected with the rotating assembly (5), and the other end of the locking rod (2) extends from the tray (1); the locking rod (2) is inserted into the rotating assembly (5) to lock the tray (1) and the rotating assembly (5), thereby fixing the tray (1) and the rotating assembly (5).

2. The seat rotation locking structure according to claim 1, characterized in that: The rotating assembly (5) includes a rotating seat (51), a pressure plate (52) and a fixed seat (53). A neck is raised at the central position of the rotating seat (51). The fixed seat (53) is sleeved on the neck. The neck of the rotating seat (51) passes through the tray (1). The tray (1) presses the fixed seat (53). The fixed seat (53) is clamped with the tray (1). The pressure plate (52) is fixedly connected to the neck. The pressure plate (52) presses the tray (1). The rotating seat (51) and the pressure plate (52) clamp the tray (1).

3. The seat rotation locking structure according to claim 2, characterized in that: A first bayonet (55) is provided on the rotating seat (51), a second bayonet (56) is provided on the fixed seat (53), and a first avoidance hole (14) for avoiding movement of the locking rod (2) is provided on the tray (1); one end of the locking rod (2) can be inserted into the first bayonet (55) and the second bayonet (56).

4. The seat rotation locking structure according to claim 1, characterized in that: A first slide groove (15) is provided in the tray (1), and the locking rod (2) is slidably engaged with the first slide groove (15). A reset member is provided between the tray (1) and the locking rod (2), and the reset member is used to drive the locking rod (2) to be plugged into the rotating assembly (5).

5. The seat rotation locking structure according to claim 4, characterized in that: The first slide groove (15) includes a first limiting portion (151) and a second limiting portion (152), and the distance between the two first limiting portions (151) is smaller than the distance between the two second limiting portions (152); the lock rod (2) includes an inserting portion (25) and a positioning portion (26), and the inserting portion (25) of the lock rod (2) matches the first limiting portion (151), and the positioning portion (26) of the lock rod (2) matches the second limiting portion (152).

6. The seat rotation locking structure according to claim 5, characterized in that: The reset assembly includes a positioning plate (3) and an elastic member (4), the positioning plate (3) is located above the first slide groove (15), the positioning plate (3) is fixedly connected to the tray (1), and the two ends of the elastic member (4) are respectively connected to the locking rod (2) and the positioning plate (3).

7. The seat rotation locking structure according to claim 6, characterized in that: The positioning plate (3) is slidably engaged with the locking rod (2).

8. The seat rotation locking structure according to claim 1, characterized in that: The end of the locking rod (2) protrudes downward to form a driving portion (24), which is located outside the tray (1).

9. The seat rotation locking structure according to claim 1, characterized in that: A second avoidance hole (16) is provided on the tray, and one end of the locking rod (2) can extend from the tray (1) through the second avoidance hole (16); the second avoidance hole (16) is located at the front of the tray.

10. A chair, characterized in that: A chair seat rotation locking structure comprising any one of claims 1 to 9.

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