Seat pan of a vertical spring type freedom structure

Abstract

The utility model discloses a seat chassis of vertical spring formula carefree structure, including disc body, top plate, first spring and locking assembly, the middle part of disc body is equipped with horizontal shaft, and the middle part of top plate is rotatablely connected in horizontal shaft, and top plate is located the top of disc body, be equipped with a plurality of vertical first spring between top plate and disc body, and a plurality of first spring are equipped with the front and back two sides of horizontal shaft, the front side of top plate is equipped with locking plate, and locking plate is equipped with first locking hole, and disc body is equipped with second locking hole, locking assembly includes lock pin, and lock pin is in turn threaded in first locking hole and second locking hole to limit the relative angle between disc body and top plate. Locking assembly can switch carefree state and fixed state, satisfy the need of different user, different use scene. And, state switching and height adjustment are all through the operation of guy, and operation is more convenient, and the setting of position is more flexible.

Description

Technical Field

[0001] This utility model relates to the field of seat accessories technology, and in particular to a seat chassis with a vertical spring-type sway structure. Background Technology

[0002] Existing seat chassis often feature a swayback mechanism, which uses springs or torsion springs to adapt to the user's weight and allows for adjustment of the swayback force according to the user's needs. However, some users do not wish to use the swayback function in certain scenarios, and this function cannot be disabled or deactivated, resulting in limited flexibility. Furthermore, existing swayback and height adjustment functions are mostly operated via metal posts, which is inconvenient to operate, and the position of these posts can easily interfere with other structures, leading to design and assembly difficulties. Utility Model Content

[0003] The purpose of this utility model is to provide a seat chassis with a vertical spring-type reclining structure, which is equipped with a locking component and can switch between reclining and fixed states.

[0004] To achieve this objective, the present invention adopts the following technical solution: A seat chassis with a vertical spring-type swayback structure includes a chassis body, a top plate, a first spring, and a locking assembly; A horizontal shaft is provided in the middle of the disc body, and the middle of the top plate is rotatably connected to the horizontal shaft, with the top plate located above the disc body; Multiple vertically arranged first springs are provided between the top plate and the disc body, and the multiple first springs are located on the front and rear sides of the horizontal axis; A locking plate is provided on the front side of the top plate, the locking plate has a first locking hole, and the disc body has a second locking hole; The locking assembly includes a locking pin, which passes through the first locking hole and the second locking hole in sequence, thereby limiting the relative angle between the disc body and the top plate.

[0005] In some embodiments, the top plate has a downwardly extending sidewall in the middle, and the sidewall has a second shaft hole that mates with the transverse axis; Two first springs are provided on both the front and rear sides of the horizontal axis.

[0006] In some embodiments, the upper end of the first spring is connected to the pin of the top plate, and the lower end of the first spring is connected to the protrusion of the disc body.

[0007] In some embodiments, the locking assembly further includes a first button, a first pull cable, and a sliding seat; One end of the first pull wire is connected to the first button, and the other end of the first pull wire is connected to the bayonet of the sliding seat; The sliding seat is connected to the locking pin.

[0008] In some embodiments, the sliding seat is provided with a sliding groove, and the disc body is provided with a guide rail that mates with the sliding groove; The disc body is also provided with guide holes that cooperate with the locking pin.

[0009] In some embodiments, a first buffer spring is provided between the other end of the first pull wire and the sliding seat; The locking pin sleeve is equipped with a return spring, which is located between the sliding seat and the guide hole.

[0010] In some embodiments, the disc body is also provided with pads, and pads are provided on both the front and rear sides of the horizontal axis.

[0011] In some embodiments, a height adjustment mechanism is also included, which includes a second button, a second pull cable, a pressure plate component, and a bracket; The support is located above the first shaft hole of the disc body, and the tablet pressing component is rotatably connected to the support; One end of the second pull wire is connected to the second button, and the other end of the second pull wire is connected to the tablet press. The tablet press is equipped with a torsion spring, which can drive the tablet press to reset.

[0012] The beneficial effects of this invention are: the locking component can switch between a relaxed state and a fixed state, meeting the needs of different users and different usage scenarios. Furthermore, both state switching and height adjustment are operated via buttons and a pull cord, making operation more convenient and position settings more flexible. Attached Figure Description

[0013] Figure 1 This is a structural diagram of a seat chassis with a vertical spring-type swaying structure according to the present invention; Figure 2 This is an exploded view of a seat chassis with a vertical spring-type swaying structure according to the present invention; Figure 3 This is a structural diagram of the top plate of this utility model; Figure 4 This is a structural diagram of a seat chassis with a vertical spring-type swaying structure according to the present invention, omitting the top plate; Figure 5 This is a structural diagram of the locking component of this utility model; Figure 6 This is a structural diagram of the height adjustment mechanism of this utility model; Wherein: 1-Disc body; 11-First shaft hole; 12-Second locking hole; 13-Side hole; 14-Guide rail; 15-Guide hole; 16-Protrusion; 2-Horizontal shaft; 3-Top plate; 31-Side wall; 32-Second shaft hole; 33-Pin; 4-First spring; 5-Locking plate; 51-First locking hole; 6-Locking assembly; 61-First button; 62-First pull wire; 63-Sliding seat; 631-Slide groove; 632-Bayonet; 64-Locking pin; 65-First buffer spring; 66-First reset spring; 7-Height adjustment mechanism; 71-Second button; 72-Second pull wire; 73-Pressure plate; 74-First torsion spring; 75-Bracket; 8-Padded block. Detailed Implementation

[0014] The present invention will now be described in further detail with reference to the accompanying drawings.

[0015] refer to Figures 1 to 6 A seat chassis with a vertical spring-type swaying structure, comprising a disc body 1, a top plate 3, a first spring 4, and a locking assembly 6; The middle part of the disc body 1 is provided with a horizontal shaft 2, and the middle part of the disc body 1 is provided with a side hole 13 for assembling the horizontal shaft 2. The middle part of the top plate 3 is rotatably connected to the horizontal shaft 2, and the top plate 3 is located above the disc body 1, so that the top plate 3 can rotate in the front and back directions.

[0016] Multiple vertically arranged first springs 4 are provided between the top plate 3 and the disc body 1. The multiple first springs 4 are located on the front and rear sides of the horizontal axis 2, that is, the front and rear sides of the horizontal axis 2 are provided with first springs 4.

[0017] A gas spring is provided below the disc body 1, and the top of the gas spring is connected to the first shaft hole 11 of the disc body 1. A chair body is provided above the top plate 3. When the user sits on the chair body, the top plate 3 can rotate back and forth according to the user's sitting posture or weight, and automatically adapt to or adjust the angle of the chair body under the action of the first spring 4 to realize the reclining function and meet the needs of different users or different sitting postures.

[0018] refer to Figure 3 The top plate 3 has a downwardly extending side wall 31 in the middle, and the side wall 31 has a second shaft hole 32 that cooperates with the horizontal shaft 2, thereby realizing a rotatable connection.

[0019] refer to Figure 2 Two first springs 4 are provided on both the front and rear sides of the horizontal axis 2. The distance between each spring and the horizontal axis 2 is approximately the same, forming two sets of springs arranged in a roughly symmetrical manner.

[0020] refer to Figure 2 and Figure 3The upper end of the first spring 4 is connected to the nail post 33 of the top plate 3. The nail post 33 can be welded, riveted or screwed to the top plate 3. The lower end of the first spring 4 is connected to the boss 16 of the disc body 1. The cooperation between the nail post 33 and the boss 16 realizes the fixation of the first spring 4.

[0021] refer to Figure 3 and Figure 4 A locking plate 5 is provided on the front side of the top plate 3. The locking plate 5 has a first locking hole 51, and the disc body 1 has a second locking hole 12. The upper end of the locking plate 5 is welded to the top plate 3, and the lower end of the locking plate 5 has a first locking hole 51.

[0022] The locking assembly 6 includes a locking pin 64. When the locking pin 64 is sequentially inserted into the first locking hole 51 and the second locking hole 12, the relative angle or position between the disc body 1 and the top plate 3 is limited. At this time, the top plate 3 cannot rotate and does not have a free-roaming function. When the locking pin 64 disengages from the first locking hole 51 and the second locking hole 12, the top plate 3 can rotate freely and has a free-roaming function. Thus, the locking assembly 6 can switch between a fixed state and a free-roaming state to meet the needs of different users and different usage scenarios, making it more flexible in use.

[0023] refer to Figure 5 The locking assembly 6 also includes a first button 61, a first pull cable 62, and a sliding base 63. One end of the first pull cable 62 is connected to the first button 61, and the other end is connected to the bayonet 632 of the sliding base 63. The sliding base 63 is connected to the locking pin 64. Thus, by pulling the first pull cable 62 with the first button 61, the sliding base 63 is driven to move, which in turn drives the locking pin 64 to move. The state switching is achieved through the cooperation of the first button 61 and the first pull cable 62, making operation more convenient and the position setting more flexible.

[0024] The sliding seat 63 is provided with a sliding groove 631, and the disc body 1 is provided with a guide rail 14 that cooperates with the sliding groove 631, thereby improving the smoothness of sliding of the sliding seat 63; two sliding grooves 631 and two guide rails 14 are provided opposite to each other.

[0025] The disc body 1 is also provided with a guide hole 15 that cooperates with the locking pin 64, thereby improving the smoothness of the movement of the locking pin 64.

[0026] A first buffer spring 65 is provided between the other end of the first pull wire 62 and the sliding seat 63, which helps to reduce the impact force and promote a more uniform movement of the sliding seat 63.

[0027] The locking pin 64 is fitted with a return spring, which is located between the sliding seat 63 and the guide hole 15. The return spring drives the locking pin 64 to return to its original position, for example, by disengaging the locking pin 64 from the first locking hole 51 and the second locking hole 12.

[0028] refer to Figure 2The disc body 1 is also provided with pads 8, and pads 8 are provided on both the front and rear sides of the horizontal shaft 2. The pads 8 can be made of materials such as plastic or rubber, and play a role in buffering and limiting, limiting the rotation angle of the top plate 3, and preventing the top plate 3 from rotating and hitting the disc body 1 under a large external force.

[0029] refer to Figure 2 and Figure 6 It also includes a height adjustment mechanism 7, which includes a second button 71, a second pull wire 72, a pressing piece 73, and a bracket 75; The bracket 75 is located above the first shaft hole 11 of the disc body 1, and the pressing component 73 is rotatably connected to the bracket 75. The bracket 75 is fixed by screws. One end of the second pull wire 72 is connected to the second button 71, and the other end of the second pull wire 72 is connected to the tablet press 73. The tablet press 73 is equipped with a torsion spring, which can drive the tablet press 73 to reset.

[0030] Therefore, the height adjustment mechanism 7 is used to activate the switch of the gas spring, driving the gas spring to extend and retract, thereby adjusting the height of the chair. The second button 71 is used to pull the second cable 72, which in turn drives the pressure plate component 73 to rotate and activate the switch of the gas spring. The pressure plate component 73 can be a cam-type structure or a crankshaft-type structure. Furthermore, the height adjustment through the cooperation of the second button 71 and the second cable 72 makes operation more convenient and the position setting more flexible.

[0031] The above description only discloses some embodiments of this utility model. For those skilled in the art, various modifications and improvements can be made without departing from the inventive concept of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A seat chassis with a vertical spring-type swaying structure, characterized in that, It includes a disc body (1), a top plate (3), a first spring (4), and a locking assembly (6); The middle part of the disc body (1) is provided with a horizontal shaft (2), the middle part of the top plate (3) is rotatably connected to the horizontal shaft (2), and the top plate (3) is located above the disc body (1). Multiple vertically arranged first springs (4) are provided between the top plate (3) and the disc body (1), and the multiple first springs (4) are located on the front and rear sides of the horizontal axis (2); The top plate (3) is provided with a locking plate (5) on the front side, the locking plate (5) is provided with a first locking hole (51), and the disc body (1) is provided with a second locking hole (12). The locking assembly (6) includes a locking pin (64) which can be sequentially inserted into the first locking hole (51) and the second locking hole (12) to limit the relative angle between the disc body (1) and the top plate (3).

2. The seat chassis with a vertical spring-type reclining structure according to claim 1, characterized in that, The top plate (3) has a downwardly extending sidewall (31) in the middle, and the sidewall (31) has a second shaft hole (32) that cooperates with the horizontal shaft (2); Two first springs (4) are provided on both the front and rear sides of the horizontal axis (2).

3. The seat chassis with a vertical spring-type reclining structure according to claim 2, characterized in that, The upper end of the first spring (4) is connected to the nail post (33) of the top plate (3), and the lower end of the first spring (4) is connected to the protrusion (16) of the disc body (1).

4. The seat chassis with a vertical spring-type reclining structure according to claim 1, characterized in that, The locking assembly (6) further includes a first button (61), a first pull wire (62), and a sliding base (63); One end of the first pull wire (62) is connected to the first button (61), and the other end of the first pull wire (62) is connected to the bayonet (632) of the sliding seat (63); The sliding seat (63) is connected to the locking pin (64).

5. The seat chassis with a vertical spring-type reclining structure according to claim 4, characterized in that, The sliding seat (63) is provided with a sliding groove (631), and the disc body (1) is provided with a guide rail (14) that cooperates with the sliding groove (631); The disc body (1) is also provided with a guide hole (15) that cooperates with the locking pin (64).

6. The seat chassis with a vertical spring-type reclining structure according to claim 5, characterized in that, A first buffer spring (65) is provided between the other end of the first pull wire (62) and the sliding seat (63); The locking pin (64) is fitted with a return spring, which is located between the sliding seat (63) and the guide hole (15).

7. A seat chassis with a vertical spring-type reclining structure according to any one of claims 1-6, characterized in that, The disc body (1) is also provided with pads (8), and pads (8) are provided on both the front and rear sides of the horizontal axis (2).

8. A seat chassis with a vertical spring-type reclining structure according to any one of claims 1-6, characterized in that, It also includes a height adjustment mechanism (7), which includes a second button (71), a second pull wire (72), a pressing piece (73), and a bracket (75); The bracket (75) is located above the first shaft hole (11) of the disc body (1), and the pressing component (73) is rotatably connected to the bracket (75); One end of the second pull wire (72) is connected to the second button (71), and the other end of the second pull wire (72) is connected to the tablet press (73); The tablet press (73) is provided with a torsion spring, which can drive the tablet press (73) to reset.

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