Seat chassis

Abstract

A seat chassis comprises a base and a support capable of rotating relative to the base, the base is provided with a locking mechanism which is used for locking relative rotation of the base and the support and can be unlocked, the locking mechanism comprises a locking handle and a locking portion which are connected, the support is provided with a plurality of locking grooves matched with the locking portion, and the locking handle is connected with the locking portion. A stabilizing piece abutting against the base is arranged below the locking handle. Compared with the prior art, the locking mechanism has the advantages that the locking part of the locking mechanism is matched with the locking groove in the support, relative rotation between the base and the support is locked, meanwhile, the locking part is separated from the locking groove by pressing the locking handle, the locking state is unlocked, the locking structure is simple, installation is convenient, maintenance cost is low, and practicability is high. Unlocking can be achieved without complex operation, and the method is simple and convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of seat, concretely relates to a seat chassis. BACKGROUND

[0002] In modern furniture design, as an indispensable part of daily life, the comfort and functionality of the seat are increasingly valued by consumers. In order to meet the use requirements in different scenes, the design of the seat tends to be multifunctional, and the rotation function of the seat becomes one of the highlights in many designs. The rotating seat not only provides more flexible use experience for users, but also increases the utilization rate and aesthetic degree of space to a certain extent.

[0003] However, while the rotating seat brings convenience, it also faces some technical challenges. Among them, how to realize reliable locking of the seat rotation has become a problem to be solved. In actual application, if the rotating locking mechanism of the seat is designed improperly, it may cause the seat to shake and make noise during rotation, or even rotate accidentally when the user accidentally exerts force, thereby affecting the stability and safety of the seat.

[0004] Chinese patent with application number 202322019946.X discloses a rotating locking mechanism and a safety seat. The disclosed rotating locking mechanism includes a base, a rotating seat, and a locking assembly. The base is provided with a mounting table. The rotating seat is arranged on the base and can rotate. The bottom surface of the rotating seat is circumferentially spaced apart and provided with a plurality of locking holes. The locking assembly includes a knob, a transmission member, a spring, and a locking piece. The knob is rotationally connected to the base. The locking piece is arranged on the mounting table and can slide towards or away from the rotating seat. The spring is arranged in the mounting table to push the locking piece to insert the locking piece into the locking hole. The knob is connected to the locking piece through the transmission member. Rotating the knob can drive the locking piece to separate the locking piece from the locking hole. Chinese patent with application number 202120552348.7 discloses a rotating mechanism for a seat. The disclosed rotating mechanism includes a base and a rotating seat that can rotate relative to the base. The base or the rotating seat is provided with a lockable locking mechanism. The locking mechanism is used to lock the relative rotation between the base and the rotating seat.

[0005] The seat in the above-mentioned prior art is provided with a rotating locking mechanism to realize the rotation adjustment and fixing function of the seat. However, the traditional rotating locking mechanism has the following defects: first, the structure is complex, for example, the locking is realized through multiple linkage components, resulting in high assembly and maintenance costs; second, the unlocking operation is cumbersome, and users need to perform multiple steps of operation (such as pressing, rotating combination action) to unlock, resulting in poor user experience. UTILITY MODEL CONTENTS

[0006] The utility model discloses in order to overcome the defects in the prior art, provide a simple structure, convenient operation can realize the seat chassis of quick unlocking.

[0007] In order to realize the utility model purposes, the utility model adopts following technical schemes: a seat chassis, including base and the support of opposite rotatable with base, be equipped with the locking mechanism for locking base and support opposite rotatable and can be unlocked on base, locking mechanism includes the locking handle and locking portion of interconnection, be equipped with a plurality of locking groove with locking portion cooperation on support, locking handle below be equipped with with the abutment of base stable element.

[0008] As a preferred scheme of the utility model, the locking portion is arranged at the end of the locking handle, and the locking portion and the locking handle are an integral structure.

[0009] As a preferred scheme of the utility model, the base is provided with a mounting groove for mounting the locking handle, and mounting holes for connecting the locking handle are formed on the groove walls on both sides of the mounting groove.

[0010] As a preferred scheme of the utility model, the locking handle is provided with a rotating pin hinged to the mounting hole, and the rotating pin is arranged close to the locking portion.

[0011] As a preferred scheme of the utility model, the base is provided with a transition hole for facilitating the connection of the locking portion and the locking groove.

[0012] As a preferred scheme of the utility model, the plurality of locking grooves are arranged on the upper surface of the support, and the plurality of locking grooves are uniformly distributed along the circumferential direction of the support.

[0013] As a preferred scheme of the utility model, the locking handle is provided with a clamping groove on the lower side, and the stable element is clamped in the clamping groove.

[0014] As a preferred scheme of the utility model, the stable element is of an elastic structure, and the stable element is located directly below the rotating pin.

[0015] As a preferred scheme of the utility model, the lower surface of the base is provided with a connecting groove for connecting the support, the groove bottom of the connecting groove is provided with a connecting hole, and the middle of the support is formed with a mounting portion penetrating through the connecting hole.

[0016] As a preferred scheme of the utility model, the upper surface of the base is provided with a fixed groove in communication with the connecting hole, a fixed plate for fixing the mounting portion is connected in the fixed groove, and the diameter of the fixed plate is greater than the diameter of the connecting hole.

[0017] Compared with the prior art, the utility model has the beneficial effects that:

[0018] 1. The locking part of the locking mechanism cooperates with the locking groove on the support to realize the locking of the relative rotation between the base and the support, and the locking part is separated from the locking groove by pressing the locking handle, so that the unlocking of the locking state is realized, the locking structure is simple, convenient to install, low in maintenance cost, and can realize unlocking without complex operation, simple and convenient.

[0019] 2. Further, the stabilizing piece is provided below the locking handle and is of elastic structure, the locking handle is supported by the stabilizing piece, the locking part is prevented from being separated from the locking groove due to the downward rotation of the locking handle under the action of gravity, and the stability of the locking mechanism in the locking state is improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structural schematic view of the utility model;

[0021] Figure 2 is a structural schematic view of the locking mechanism of the utility model;

[0022] Figure 3 is a structural schematic view of the base of the utility model;

[0023] Figure 4 is a structural schematic view of the connecting groove

[0024] Drawing reference: base 1, connecting groove 101, transition hole 1011, mounting groove 102, mounting hole 1021, connecting hole 103, fixed groove 104, support 2, locking groove 201, mounting part 202, fixed plate 203, locking mechanism 3, locking handle 301, rotating pin 3011, clamping groove 3012, locking part 302, stabilizing piece 303, lifting adjusting handle 4. DETAILED DESCRIPTION

[0025] The utility model embodiment will be described in detail below with reference to the drawings.

[0026] As Figures 1-4 shown, a seat chassis comprises a base 1 and a support 2 relatively rotatable with the base 1, the base 1 is provided with a locking mechanism 3 for locking the relative rotation of the base 1 and the support 2 and being unlockable, the locking mechanism 3 comprises a locking handle 301 and a locking part 302 connected with each other, the support 2 is provided with a plurality of locking grooves 201 matched with the locking part 302, and the locking handle 301 is provided below with a stabilizing piece 303 abutting against the base 1.

[0027] Further, the base 1 is connected to the seat cushion of the seat, the support 2 is connected to the lifting structure of the seat bottom, the base 1 is rotatably connected to the support 2, the relative rotation between the base 1 and the support 2 can be realized, and then the rotation function of the seat can be realized. The locking mechanism 3 arranged on the base 1 locks the relative rotation between the base 1 and the support 2, realizes the limitation of the rotation of the seat, and the locking state between the base 1 and the support 2 can be released by unlocking the locking mechanism 3. Specifically, the locking mechanism 3 includes a locking handle 301 and a locking portion 302, the locking handle 301 is hinged to the base 1, the locking portion 302 is connected to the locking groove 201 of the support 2, the rotation between the base 1 and the support 2 is locked through the cooperation of the locking portion 302 and the locking groove 201, and the locking state is unlocked by pressing the locking handle 301 to make the locking portion 302 separate from the locking groove 201. The locking structure is simple, easy to install, low in maintenance cost, and can be unlocked without complex operation, which is simple and convenient. In addition, the stabilizing piece 303 is locked below the locking handle 301, and the stabilizing piece 303 abuts against the base 1. The stabilizing piece 303 supports the locking handle 301, so that the locking handle 301 is prevented from rotating downward under the action of gravity to make the locking portion 302 separate from the locking groove 201 in the locked state, and the stability of the locking mechanism 3 is improved.

[0028] In addition, the lifting adjusting handle 4 for cooperating with the lifting structure of the seat bottom to adjust the height of the seat is also arranged on the base 1. The lifting adjusting handle 4 is hinged to the base 1. The adjustment of the height of the seat is the prior art, and thus will not be described herein.

[0029] The locking portion 302 is arranged at the end of the locking handle 301, and the locking portion 302 and the locking handle 301 are an integral structure. Further, the locking portion 302 is a block-shaped structure matched with the locking groove 201, and the locking portion 302 is arranged at the end of the locking handle 301 and protrudes downward along the thickness direction of the locking handle 301. The locking portion 302 is inserted into the locking groove 201 to lock the relative rotation between the base 1 and the support 2.

[0030] The mounting groove 102 for mounting the locking handle 301 is arranged on the base 1, mounting holes 1021 for connecting the locking handle 301 are formed in the groove walls on both sides of the mounting groove 102. Further, the base 1 is a rectangular shell-shaped structure, the connecting surface of the base 1 to the seat cushion is open, that is, the inside of the base 1 is a hollow structure with an open top surface. The mounting groove 102 is arranged on the side edge of the base 1, and the mounting holes 1021 for mounting the locking handle 301 are arranged on the side edge.

[0031] In addition, the locking handle 301 is provided with a rotating pin 3011 hinged with the mounting hole 1021, and the rotating pin 3011 is arranged close to the locking portion 302. Further, the rotating pin 3011 is arranged on opposite sides of the locking handle 301, and the rotating pin 3011 is rotatably connected in the corresponding mounting hole 1021. Meanwhile, the rotating pin 3011 is arranged close to the locking portion 302, and the distance between the rotating pin 3011 and the locking portion 302 is much smaller than the distance between the rotating pin 3011 and the other end of the locking handle 3012. When the locking handle 301 is connected in the mounting hole 1021, the locking handle 301 is equivalent to a lever structure, and the rotating pin 3011 is taken as the rotating center of the lever. When the locking state is released, the locking portion 302 is separated from the locking groove 201 by pressing the locking handle 301. Therefore, the operation of the locking handle 301 is more convenient and labor-saving.

[0032] The base 1 is provided with a transition hole 1011 facilitating the connection between the locking portion 302 and the locking groove 201. Further, the transition hole 1011 is in communication with the mounting groove 102, and the locking portion 302 is inserted into the locking groove 201 through the transition hole 1011 to realize the locking of the base 1 and the support 2.

[0033] A plurality of locking grooves 201 are arranged on the upper surface of the support 2, and the plurality of locking grooves 201 are uniformly distributed along the circumferential direction of the support 2. Further, the plurality of locking grooves 201 are arranged at the edges of the upper surface of the support 2, and a certain spacing is arranged between adjacent locking grooves 201. The plurality of locking grooves 201 can realize the locking of the seat rotation in different directions.

[0034] The locking handle 301 is provided with a clamping groove 3012 on one end close to the locking portion 302, and the stabilizing piece 303 is clamped in the clamping groove 3012. Further, the stabilizing piece 303 is fixed through the clamping groove 3012. Meanwhile, the upper end of the stabilizing piece 303 is a flat structure, and the lower end is an outwardly protruding arc-shaped structure. The arc-shaped structure is abutted on the groove bottom of the mounting groove 102.

[0035] The stabilizing piece 303 is an elastic structure, and the stabilizing piece 303 is located directly below the rotating pin 3011, further, by setting the stabilizing piece 303 as an elastic structure, support to the locking handle 301 is realized, and when the locking handle 301 is pressed downward, the stabilizing piece 303 will not be damaged, and at the same time, it is ensured that after the locking handle 301 is released, the locking handle 301 can be reset under the action of the elasticity of the stabilizing piece 303; in addition, the stabilizing piece 303 is arranged directly below the rotating pin 3011, so that when the locking handle 301 is pressed downward, the locking handle 301 can completely separate the locking portion 302 from the locking groove 201 when the compression distance of the stabilizing piece 303 reaches the limit, avoiding the situation that the locking portion 302 cannot be completely separated from the locking groove 201 when the stabilizing piece 303 reaches the compression limit, and further causing the unlocking to be unable to be completed.

[0036] The lower surface of the base 1 is provided with a connecting groove 101 for connecting the support 2, the groove bottom of the connecting groove 101 is provided with a connecting hole 103, the middle part of the support 2 is formed with a mounting portion 202 penetrating through the connecting hole 103, further, the connecting groove 101 is in communication with the transition hole 1011, the structure of the connecting groove 101 is matched with the structure of the support 2, the support 2 is rotationally connected in the connecting groove 101, the mounting portion 202 is arranged at the middle part of the support 2, the connecting hole 103 is located at the middle part of the connecting groove 101, and the mounting portion 202 is arranged through the connecting hole 103.

[0037] The upper surface of the base 1 is provided with a fixed groove 104 in communication with the connecting hole 103, and the fixed groove 104 is connected with a fixed plate 203 for fixing the mounting portion 202, the diameter of the fixed plate 203 is greater than the diameter of the connecting hole 103, further, the fixed plate 203 is connected with the mounting portion 202 through bolts, specifically, the fixed plate 203 is rotationally connected in the fixed groove 104, and since the diameter of the fixed plate 203 is greater than the diameter of the connecting hole 103 and the diameter of the fixed plate 203 is smaller than the diameter of the fixed groove 104, the connection between the fixed plate 203 and the mounting portion 202 is realized, so as to realize the connection between the support 2 and the base 1.

[0038] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application; therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

[0039] Although the present application uses the terms: base 1, connecting groove 101, transition hole 1011, mounting groove 102, mounting hole 1021, connecting hole 103, fixing groove 104, support 2, locking groove 201, mounting portion 202, fixing plate 203, locking mechanism 3, locking handle 301, rotating pin 3011, clamping groove 3012, locking portion 302, stabilizing piece 303, lifting adjustment handle 4, etc. more in the drawings, but it does not exclude the possibility of using other terms. The use of these terms is only to facilitate the description and explanation of the essence of the present application; any additional limitation is contrary to the spirit of the present application.

Claims

1. A seat pan comprising a base (1) and a support (2) relatively rotatable with the base (1), characterized in that, The base (1) is provided with a locking mechanism (3) for locking the base (1) relative to the support (2) and being unlocked, the locking mechanism (3) comprises a locking handle (301) and a locking portion (302) connected with each other, the support (2) is provided with a plurality of locking grooves (201) matched with the locking portion (302), and the locking handle (301) is provided below with a stabilizing piece (303) abutting against the base (1).

2. A seat pan according to claim 1, wherein, The locking portion (302) is arranged at the end of the locking handle (301), and the locking portion (302) and the locking handle (301) are an integral structure.

3. A seat pan according to claim 1, wherein, The base (1) is provided with a mounting groove (102) for mounting the locking handle (301), and the groove wall on both sides of the mounting groove (102) is formed with a mounting hole (1021) for connecting the locking handle (301).

4. A seat pan according to claim 3, wherein, The locking handle (301) is provided with a rotating pin (3011) hinged with the mounting hole (1021), and the rotating pin (3011) is arranged close to the locking portion (302).

5. A seat pan according to claim 1, wherein, The base (1) is provided with a transition hole (1011) for facilitating the connection of the locking portion (302) and the locking groove (201).

6. A seat pan according to claim 1, wherein, A plurality of locking grooves (201) are arranged on the upper surface of the support (2), and the plurality of locking grooves (201) are uniformly distributed along the circumferential direction of the support (2).

7. A seat pan according to claim 1, wherein, The locking handle (301) is provided below with a clamping groove (3012), and the stabilizing piece (303) is clamped in the clamping groove (3012).

8. A seat pan according to claim 4, wherein, The stabilizing piece (303) is a resilient structure, and the stabilizing piece (303) is located directly below the rotating pin (3011).

9. A seat pan according to claim 1, wherein, The lower surface of the base (1) is provided with a connecting groove (101) for connecting the support (2), the groove bottom of the connecting groove (101) is provided with a connecting hole (103), and the middle portion of the support (2) is formed with a mounting portion (202) penetrating through the connecting hole (103).

10. A seat pan according to claim 9, wherein, The upper surface of the base (1) is provided with a fixed groove (104) in communication with the connecting hole (103), and the fixed groove (104) is connected with a fixing plate (203) for fixing the mounting portion (202), and the diameter of the fixing plate (203) is greater than the diameter of the connecting hole (103).

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