A cable drawn seat chassis

Abstract

The utility model discloses a kind of pull wire type seat chassis, including bottom cover, top frame, support, front cover and movable frame;Bottom cover is buckled in the below of support;Front cover is buckled in the front side of top frame;The front end of support is rotatably connected with the front end of top frame by first shaft body;The rear end of top frame is rotatably connected with the front end of movable frame by second shaft body;The rear end of support is equipped with fourth shaft body, fourth shaft body is equipped with torsion spring, the first end foot of torsion spring is connected with the rear end surface of support, the second end foot of torsion spring is connected with the third shaft body of movable frame;Further include angle adjusting mechanism.Angle adjusting mechanism realizes angle adjustment by first button, first pull rope, sliding block and pin column etc. structure, operation is more convenient;And, sliding block is guided by sliding slot and guide rail, plus pin column and guide hole cooperation, movement is more smooth.Angle adjusting mechanism and height adjusting mechanism are operated by pull line, 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 cable-operated seat chassis. Background Technology

[0002] The seat chassis allows for adjustment of the seat height and backrest angle. However, height or angle adjustments are often made by rotating or pulling a metal rod, which is inconvenient. Furthermore, the position of the metal rod can easily interfere with other structures, making design and assembly inconvenient. Utility Model Content

[0003] The purpose of this utility model is to provide a cable-operated seat chassis, in which the angle adjustment mechanism achieves angle adjustment through a first button, a first pull rope, a sliding mechanism, and a pin, making operation more convenient.

[0004] To achieve this objective, the present invention adopts the following technical solution: A cable-operated seat chassis includes a bottom cover, a top frame, a bracket, a front cover, and a movable frame; The bottom cover is fastened to the bottom of the bracket; the front cover is fastened to the front of the top frame. The front end of the bracket is rotatably connected to the front end of the top frame via the first shaft; The rear end of the top frame is rotatably connected to the front end of the movable frame via a second shaft; The rear end of the bracket is provided with a fourth shaft, and the fourth shaft is provided with a torsion spring. The first end of the torsion spring is connected to the rear end face of the bracket, and the second end of the torsion spring is connected to the third shaft of the movable frame. It also includes an angle adjustment mechanism, which comprises a first button, a first pull wire, a sliding block, and a pin. 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 sliding block; The sliding block is provided with a sliding groove, and the bracket is provided with a guide rail that matches the sliding groove; the sliding block is connected to the pin. The side wall of the movable frame is provided with multiple stop holes corresponding to the pins.

[0005] In some implementations, there are three gear holes; and two torsion springs.

[0006] In some embodiments, the bracket is further provided with a guide hole that mates with the pin, the guide hole extending out of the side wall of the bracket, so that the pin can extend out of the side wall of the bracket.

[0007] In some embodiments, a first return spring is sleeved on the pin, and the first return spring is located between the sliding block and the guide hole; The other end of the first pull wire is connected to the first latch of the sliding block, and the other end of the first pull wire is provided with a first buffer spring.

[0008] In some embodiments, a height adjustment mechanism is also included, which includes a base, an arm, a second button, and a second pull cable; The base is located on one side of the first shaft hole of the bracket; One end of the arm is rotatably connected to the base; The arm body is equipped with a second bayonet, and a touch block is provided in the middle of the arm body; The arm body is positioned above the first shaft hole; One end of the second pull cable is connected to the second button, and the other end of the second pull cable is connected to the second bayonet. The other end of the second pull wire is equipped with a second reset spring.

[0009] In some embodiments, the bottom cover is provided with an upwardly protruding first buckle, and the bottom wall of the bracket is provided with a first buckle groove that mates with the first buckle; The front cover is provided with a second protruding buckle, and the top frame is provided with a second buckle groove that mates with the second protruding buckle; The bottom cover has a front baffle at one end near the front cover. The front baffle is located between the front cover and the bracket. The front baffle has a pin, and the bottom cover has a slot that mates with the pin.

[0010] The beneficial effects of this utility model are as follows: the angle adjustment mechanism realizes angle adjustment through the first button, the first pull rope, the sliding block and the pin, making operation more convenient; in addition, the sliding block is guided by the slide groove and the guide rail, and the pin cooperates with the guide hole, making the movement smoother.

[0011] Both the angle adjustment mechanism and the height adjustment mechanism are operated by buttons and pull cables, making operation more convenient and position settings more flexible. Attached Figure Description

[0012] Figure 1 This is a structural diagram of a cable-operated seat chassis according to the present invention; Figure 2 This is one of the exploded views of a cable-operated seat chassis according to the present invention; Figure 3 This is the second exploded view of a cable-operated seat chassis according to the present invention; Figure 4 This is a structural diagram of the angle adjustment mechanism of this utility model; Figure 5 This is a structural diagram of the height adjustment mechanism of this utility model; Wherein: 1-bottom cover; 11-first protruding buckle; 13-slot; 12-front baffle; 121-insertion post; 2-top frame; 21-second buckle groove; 3-bracket; 31-first shaft hole; 32-elongated hole; 33-rear end face; 36-guide rail; 37-guide hole; 4-movable frame; 41-gear hole; 5-front cover; 51-second protruding buckle; 61-first shaft; 62-second shaft; 63-third shaft; 64-fourth shaft; 7-angle adjustment mechanism; 71-first button; 72-First pull cable; 73-First buffer spring; 74-Sliding block; 741-First bayonet; 742-Slide groove; 75-Pin; 76-First return spring; 77-First pull cable adjusting component; 8-Height adjustment mechanism; 81-Base; 82-Arm body; 821-Second bayonet; 822-Touch block; 83-Second button; 84-Second pull cable; 85-Second return spring; 86-Second pull cable adjusting component; 9-Torsion spring; 91-First end foot; 92-Second end foot. Detailed Implementation

[0013] The present invention will now be described in further detail with reference to the accompanying drawings.

[0014] refer to Figures 1 to 5 A cable-operated seat chassis includes a bottom cover 1, a top frame 2, a bracket 3, a front cover 5, and a movable frame 4; The bottom cover 1 is fastened to the bottom of the bracket 3; the front cover 5 is fastened to the front of the top frame 2. Thus, by setting the bottom cover 1 and the front cover 5, the bracket 3 and the top frame 2 are covered, improving aesthetics and safety.

[0015] The front end of the bracket 3 is connected to the front end of the top frame 2 through the first shaft 61; the front end of the bracket 3 is provided with an elongated hole 32 that mates with the first shaft 61, and the top frame 2 is provided with a corresponding shaft hole that mates with the first shaft 61. The rear end of the top frame 2 is connected to the front end of the movable frame 4 via the second shaft 62; both the top frame 2 and the movable frame 4 are provided with corresponding shaft holes that cooperate with the second shaft 62. The rear end of the bracket 3 is provided with a fourth shaft 64, and the fourth shaft 64 is provided with a torsion spring 9. The first end 91 of the torsion spring 9 is connected to the rear end face 33 of the bracket 3, and the second end 92 of the torsion spring 9 is connected to the third shaft 63 of the movable frame 4.

[0016] The top frame 2, the support frame 3, and the movable frame 4 form a rotating connection structure. The support frame 3 is provided with a first shaft hole 31, and the top of the gas spring is connected to the first shaft hole 31; the top frame 2 is connected to the seat, and the movable frame 4 is connected to the backrest; the torsion spring 9 has a certain buffering effect, which can also be understood as: the torsion spring 9 can adjust the angle appropriately according to the user's weight, and has a certain relaxation function.

[0017] It also includes an angle adjustment mechanism 7, which is used to adjust the angle of the movable frame 4, thereby adjusting the angle of the chair back. The angle adjustment mechanism 7 includes a first button 71, a first pull cable 72, a sliding block 74, and a pin 75; One end of the first pull wire 72 is connected to the first button 71, and the other end of the first pull wire 72 is connected to the slider 74; The sliding block 74 is provided with a sliding groove 742, and the bracket 3 is provided with a guide rail 36 that cooperates with the sliding groove 742, which helps to improve the smoothness of the movement of the sliding block 74; the sliding block 74 is connected to the pin 75; The side wall of the movable frame 4 is provided with multiple stop holes 41 corresponding to the pin 75.

[0018] Therefore, the first button 71 drives the first pull wire 72, which pulls the sliding block 74 to move, thereby causing the pin 75 to move closer to the gear hole 41 and insert into the corresponding gear hole 41, thereby realizing the angle adjustment of the movable frame 4. The operation is more convenient and the position design is more flexible.

[0019] refer to Figure 2 The gear position hole 41 has three holes, thus providing three adjustment angles. Of course, more gear position holes 41 can be adjusted as needed to meet different requirements.

[0020] refer to Figure 3 Two torsion springs 9 are provided, which provides better force distribution and greater stability.

[0021] refer to Figure 4 The bracket 3 is also provided with a guide hole 37 that cooperates with the pin 75, which helps to improve the smoothness of the movement of the pin 75; the guide hole 37 extends out of the side wall of the bracket 3, so that the pin 75 can extend out of the side wall of the bracket 3.

[0022] The pin 75 is fitted with a first return spring 76, which is located between the sliding block 74 and the guide hole 37; the first return spring 76 can push the sliding block 74 to perform a reset movement.

[0023] The other end of the first pull wire 72 is connected to the first latch 741 of the sliding block 74, and the other end of the first pull wire 72 is provided with a first buffer spring 73. The first buffer spring 73 helps to reduce the impact force and causes the first pull wire 72 to pull the sliding block 74 more evenly.

[0024] Therefore, the first button 71 is located on the side of the bracket 3 away from the gear position hole 41. The first pull cable 72 can be redirected by the first pull cable adjusting member 77. The 180-degree turn of the first pull cable adjusting member 77 causes the first pull cable 72 to turn 180 degrees, thereby pulling the sliding block 74 and the pin 75 to move towards the gear position hole 41.

[0025] refer to Figure 5 It also includes a height adjustment mechanism 8, which includes a base 81, an arm 82, a second button 83, and a second pull cable 84; The base 81 is located on one side of the first shaft hole 31 of the bracket 3; One end of the arm 82 is rotatably connected to the base 81, for example, by connecting the rotating shaft to the shaft hole; The arm body 82 is provided with a second bayonet 821, and the middle part of the arm body 82 is provided with a touch block 822; The arm body 82 is positioned above the first shaft hole 31; One end of the second pull wire 84 is connected to the second button 83, and the other end of the second pull wire 84 is connected to the second bayonet 821; The other end of the second pull wire 84 is provided with a second return spring 85.

[0026] Therefore, the second button 83 drives the second pull cable 84, which pulls the arm 82 downward, thereby driving the touch block 822 to press the switch of the air rod, driving the air rod to extend and retract, thus realizing height adjustment. The operation is more convenient and the position design is more flexible.

[0027] The second cable 84 can be redirected by the second cable directional component 86. The 90-degree turn of the second cable directional component 86 causes the second cable 84 to turn upward by 90 degrees, thereby pulling the arm 82 to rotate downward.

[0028] refer to Figure 2 and Figure 3 The bottom cover 1 is provided with an upward protruding first buckle 11, and the bottom wall of the bracket 3 is provided with a first buckle groove that cooperates with the first buckle 11, thereby realizing convenient disassembly and connection.

[0029] refer to Figure 2 and Figure 3 The front cover 5 is provided with a second protrusion 51, and the top frame 2 is provided with a second buckle groove 21 that cooperates with the second protrusion 51, thereby realizing convenient disassembly and connection.

[0030] refer to Figure 2 and Figure 3 The bottom cover 1 has a front baffle 12 at one end near the front cover 5. The front baffle 12 is located between the front cover 5 and the bracket 3. The front baffle 12 has a post 121, and the bottom cover 1 has a slot 13 that mates with the post 121. The front baffle 12 shields the bracket 3 and the like.

[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 cable-operated seat chassis, characterized in that, It includes a bottom cover (1), a top frame (2), a bracket (3), a front cover (5), and a movable frame (4); The bottom cover (1) is fastened to the bottom of the bracket (3); the front cover (5) is fastened to the front side of the top frame (2); The front end of the bracket (3) is rotatably connected to the front end of the top frame (2) via the first shaft (61); The rear end of the top frame (2) is rotatably connected to the front end of the movable frame (4) via a second shaft (62); The rear end of the bracket (3) is provided with a fourth shaft (64), the fourth shaft (64) is provided with a torsion spring (9), the first end (91) of the torsion spring (9) is connected to the rear end face (33) of the bracket (3), and the second end (92) of the torsion spring (9) is connected to the third shaft (63) of the movable frame (4). It also includes an angle adjustment mechanism (7), which includes a first button (71), a first pull wire (72), a sliding block (74), and a pin (75); One end of the first pull wire (72) is connected to the first button (71), and the other end of the first pull wire (72) is connected to the slider (74); The sliding block (74) is provided with a sliding groove (742), and the bracket (3) is provided with a guide rail (36) that cooperates with the sliding groove (742); the sliding block (74) is connected to the pin (75); The side wall of the movable frame (4) is provided with multiple stop holes (41) corresponding to the pin (75).

2. The cable-operated seat chassis according to claim 1, characterized in that, The gear shift hole (41) has three parts; Two torsion springs (9) are provided.

3. The cable-operated seat chassis according to claim 1, characterized in that, The bracket (3) is also provided with a guide hole (37) that cooperates with the pin (75). The guide hole (37) extends out of the side wall of the bracket (3), so that the pin (75) can extend out of the side wall of the bracket (3).

4. The cable-operated seat chassis according to claim 3, characterized in that, The pin (75) is fitted with a first return spring (76), which is located between the sliding block (74) and the guide hole (37). The other end of the first pull wire (72) is connected to the first bayonet (741) of the sliding block (74), and the other end of the first pull wire (72) is provided with a first buffer spring (73).

5. The cable-operated seat chassis according to claim 1, characterized in that, It also includes a height adjustment mechanism (8), which includes a base (81), an arm (82), a second button (83), and a second pull cable (84); The seat (81) is located on one side of the first shaft hole (31) of the bracket (3); One end of the arm (82) is rotatably connected to the base (81); The arm body (82) is provided with a second bayonet (821), and the middle part of the arm body (82) is provided with a pressing block (822); The arm body (82) is located above the first shaft hole (31); One end of the second pull wire (84) is connected to the second button (83), and the other end of the second pull wire (84) is connected to the second bayonet (821); The other end of the second pull wire (84) is provided with a second return spring (85).

6. The cable-operated seat chassis according to claim 1, characterized in that, The bottom cover (1) is provided with an upwardly protruding first buckle (11), and the bottom wall of the bracket (3) is provided with a first buckle groove that cooperates with the first buckle (11); The front cover (5) is provided with a second protruding buckle (51), and the top frame (2) is provided with a second buckle groove (21) that cooperates with the second protruding buckle (51); The bottom cover (1) is provided with a front baffle (12) at one end near the front cover (5). The front baffle (12) is located between the front cover (5) and the bracket (3). The front baffle (12) is provided with a pin (121). The bottom cover (1) is provided with a slot (13) that cooperates with the pin (121).

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