Seat jacking device and seat

Abstract

The utility model provides a seat jacking device and a seat, the seat jacking device comprises a base, a jacking assembly arranged on the base and located above an air cylinder, and a driving assembly arranged on the base and connected with the jacking assembly, the driving assembly comprises a deflector rod arranged on the base and a pull wire, one end of the pull wire is arranged on the deflector rod, and the other end of the pull wire is arranged on the jacking assembly; in the using process, the pulling wire is pulled through the shifting rod, then the jacking assembly is driven to move in the direction close to the air cylinder so as to cooperate with the air cylinder to adjust the ground clearance of the cushion, in the shifting rod shifting process of a user, direct contact between the shifting rod and the output end of the air cylinder can be effectively avoided, violent collision between the shifting rod and the output end of the air cylinder is avoided, and the service life of the jacking device is effectively prolonged; linkage is carried out through the pull wire, the damping feeling when a user pokes the poking rod is improved, the use experience of the user is remarkably improved, and the device has the advantages of being stable in structure, good in use experience, low in implementation cost and convenient to popularize and implement.

Description

Technical Field

[0001] The present application belongs to the technical field of seat production, and specifically relates to a seat lifting device and a seat. Background Art

[0002] In the prior art, with the improvement of living standards, people have higher and higher requirements for seats, and the comfort level during use is more valued by users;

[0003] In the prior art, office chairs, gaming chairs, and ergonomic chairs are common seats on the market. In order to meet the needs of users of different heights, existing seats are usually equipped with a lifting device that can adjust the height of the seat cushion from the ground. The existing seat lifting device usually includes a lever and a cylinder, wherein one end of the lever is a lever part, and the other end of the lever is a pressure part. The user can directly lever the lever part of the lever and use the lever principle to make the pressure part of the lever apply pressure to the output end of the cylinder, thereby raising or lowering the height of the seat cushion from the ground. During actual use, on the one hand, the user's adjustment force will affect the service life of the lifting device. When the lever force is large, the pressure part will collide violently with the cylinder output part, thereby damaging the cylinder. On the other hand, the use of the lever to directly apply pressure to the cylinder output part results in poor damping during operation, which reduces the user's experience. Therefore, improvements are urgently needed. Utility Model Content

[0004] The present application aims to solve the technical problem that in the prior art, a seat generally achieves its lifting function by means of a lever and a cylinder. When a user moves the lever, the lever directly contacts the output end of the cylinder, directly applying pressure to the output end of the cylinder, thereby adjusting the height of the seat cushion from the ground. During this adjustment process, the user's operating force will affect the service life of the lifting device. When the force of the movement is large, the lever and the output end of the cylinder will collide violently, posing a risk of damaging the cylinder. Furthermore, when the lever is directly used for adjustment, the damping feeling is poor during operation, resulting in a poor user experience. Therefore, a seat lifting device is proposed.

[0005] In order to solve the technical problem raised in the present application, the present application also proposes a seat, which includes the above-mentioned seat lifting device.

[0006] The present application adopts the following scheme: a seat lifting device, including a base, a lifting assembly arranged on the base and located above the cylinder, and a driving assembly arranged on the base and connected to the lifting assembly, the driving assembly being used to drive the lifting assembly to move toward the direction approaching the cylinder, the driving assembly including a shift rod arranged on the base, and a pull wire with one end arranged on the shift rod and the other end arranged on the lifting assembly, the shift rod being used to pull the pull wire to drive the lifting assembly to move toward the direction approaching the cylinder.

[0007] In one embodiment, the lifting assembly includes a first connecting assembly and a lifting rod rotatably provided on the first connecting assembly and located at a corresponding position above the cylinder. The pull wire is provided at the end of the lifting rod. When the shift rod pulls the pull wire, the pull wire drives the lifting rod to rotate toward the cylinder.

[0008] In one embodiment, the first connecting component includes a first connecting seat provided on the base, a rotating groove provided on the first connecting seat, and a rotating shaft provided on the lifting rod at a position corresponding to the rotating groove, the rotating shaft can be matched and extended into the rotating groove, the rotating shaft is provided on one end of the lifting rod, the pull wire is provided on the other end of the lifting rod, and the pull wire can drive the lifting rod to rotate around the axis of the rotating shaft.

[0009] In one embodiment, the first connecting assembly further includes a limiting assembly, and the limiting assembly is used to limit the movement of the rotating shaft in a direction away from the rotating groove.

[0010] In one embodiment, the limiting assembly includes limiting connecting holes provided on both ends of the rotating groove, and limiting bolts matched with the limiting connecting holes. When the rotating shaft moves away from the rotating groove, the limiting bolts abut against the rotating shaft to limit the rotating shaft from moving away from the rotating groove.

[0011] In one embodiment, a second connecting component is further included between the pull wire and the lifting rod, the second connecting component includes a second connecting groove provided on one end of the lifting rod, and a second connecting end provided on the end of the pull wire. When the second connecting end matches and extends into the second connecting groove, the pull wire can drive the lifting rod to rotate toward the cylinder.

[0012] In one embodiment, a damping winding assembly is further included between the pull wire and the second connecting assembly. After the pull wire is wound on the damping winding assembly, the second connecting end can be matched and extended into the second connecting groove.

[0013] In one embodiment, the damping winding assembly includes a fixed seat provided on the base, a winding groove provided on the fixed seat, and a winding roller that rotates in the winding groove. When the pull wire is matched and wound on the winding roller, the second connecting end can be matched and extended into the second connecting groove.

[0014] In order to solve the technical problem raised in this application, this application also provides a seat, including a seat lifting device as described above.

[0015] Compared with the prior art, this application has the following beneficial effects:

[0016] The present application provides a seat lifting device and a seat, which include a base, a lifting assembly arranged on the base and located above the cylinder, and a driving assembly arranged on the base and connected to the lifting assembly, wherein the driving assembly includes a shift rod arranged on the base, and a pull wire with one end arranged on the shift rod and the other end arranged on the lifting assembly. During use, the pull wire is pulled by the shift rod, thereby driving the lifting assembly to move toward the cylinder to cooperate with the cylinder to adjust the height of the seat cushion from the ground. When the user shifts the shift rod, direct contact between the shift rod and the cylinder output end can be effectively avoided, and violent collision between the shift rod and the cylinder output end can be avoided, thereby effectively extending the service life of the jacking device. The pull wire is used for linkage, which improves the damping feeling when the user shifts the shift rod, significantly improving the user experience. The device has the advantages of stable structure, good use experience, low implementation cost, and easy promotion and implementation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the main body of a chair in the present application.

[0018] Figure 2 This is a schematic diagram of the internal structure of the main body of a seat in the present application.

[0019] Figure 3 It is a structural schematic diagram of a seat lifting device of the present application.

[0020] Figure 4 This is a top view of a seat lifting device of the present application.

[0021] Figure 5 This application Figure 4 A partial enlarged view of point A in the middle.

[0022] Figure 6 This application Figure 4 Cross-sectional view at the middle BB.

[0023] Figure 7 This application Figure 6 A partial enlarged view of point C in the middle.

[0024] Figure 8 It is a structural diagram of the base of this application.

[0025] Figure 9 It is a structural diagram of the damping winding assembly of the present application. Specific embodiments

[0026] Combine Figure 1-9To further illustrate the technical solution, a seat lifting device includes a base 1, a lifting assembly 2 provided on the base 1 and located above the cylinder, and a driving assembly 3 provided on the base 1 and connected to the lifting assembly 2, wherein the driving assembly 3 is used to drive the lifting assembly 2 to move toward the cylinder, and the driving assembly 3 includes a shift rod 30 provided on the base 1, and a pull wire 31 with one end provided on the shift rod 30 and the other end provided on the lifting assembly 2, and the shift rod 30 is used to pull the pull wire 31 to drive the lifting assembly 2 to move toward the cylinder.

[0027] The present application provides a seat lifting device and a seat, which include a base, a lifting assembly arranged on the base and located above the cylinder, and a driving assembly arranged on the base and connected to the lifting assembly, wherein the driving assembly includes a shift rod arranged on the base, and a pull wire with one end arranged on the shift rod and the other end arranged on the lifting assembly. During use, the pull wire is pulled by the shift rod, thereby driving the lifting assembly to move toward the cylinder to cooperate with the cylinder to adjust the height of the seat cushion from the ground. When the user shifts the shift rod, direct contact between the shift rod and the cylinder output end can be effectively avoided, and violent collision between the shift rod and the cylinder output end can be avoided, thereby effectively extending the service life of the jacking device. The pull wire is used for linkage, which improves the damping feeling when the user shifts the shift rod, significantly improving the user experience. The device has the advantages of stable structure, good use experience, low implementation cost, and easy promotion and implementation.

[0028] During the actual implementation process, the pull wire is made of metal and has a high elasticity. The pull wire and the lever are detachably connected. When the user pulls the lever, the pull wire can drive the jacking assembly to move toward the cylinder work station to apply pressure to the cylinder output end. By using the pull wire as a driving assembly, the violent collision between the lever and the cylinder output end can be effectively avoided, and the service life of the jacking device can be effectively extended. The pull wire is used for linkage, which improves the damping feeling when the user pulls the lever, significantly improving the user experience. It has the advantages of stable structure, good user experience, low implementation cost, and easy promotion and implementation.

[0029] During the implementation of this embodiment, the lifting assembly 2 includes a first connecting assembly 20, and a lifting rod 21 that is rotatably arranged on the first connecting assembly 20 and located at a corresponding position above the cylinder. The pull wire 31 is arranged at the end of the lifting rod 21. When the shift rod 30 pulls the pull wire 31, the pull wire 31 drives the lifting rod 21 to rotate toward the direction close to the cylinder.

[0030] During the implementation of this embodiment, the first connecting component 20 includes a first connecting seat 22 provided on the base 1, a rotating groove 23 provided on the first connecting seat 22, and a rotating shaft 24 provided on the lifting rod 21 at a position corresponding to the rotating groove 23. The rotating shaft 24 can be matched and extended into the rotating groove 23. The rotating shaft 24 is provided on one end of the lifting rod 21, and the pull wire 31 is provided on the other end of the lifting rod 21. The pull wire 31 can drive the lifting rod 21 to rotate around the axis of the rotating shaft 24.

[0031] During the actual implementation process, the rotating shafts are respectively arranged on both sides of the lifting rod. Through the first connecting seat and the rotating groove arranged on the base, and the matching rotating shaft on the lifting rod, the lifting rod can rotate around the rotating shaft. Furthermore, the other end of the lifting rod is connected by a pull wire, and the pulling of the pull wire can drive the lifting rod to rotate, so that the device can apply uniform pressure to the cylinder output, avoid excessive pressure, effectively extend the service life of the cylinder, and improve the operating feel.

[0032] During the implementation of this embodiment, the first connecting component 20 further includes a limiting component 25 , and the limiting component 25 is used to limit the movement of the rotating shaft 24 in a direction away from the rotating groove 23 .

[0033] During the implementation of this embodiment, the limiting assembly 25 includes limiting connection holes 26 provided on both ends of the rotation groove 23, and limiting bolts 27 matching the limiting connection holes 26. When the rotation shaft 24 moves in the direction away from the rotation groove 23, the limiting bolts 27 abut against the rotation shaft 24 to limit the rotation shaft 24 from moving in the direction away from the rotation groove 23.

[0034] In actual implementation, the nut diameter of the limit bolt is larger than the width of the rotation slot. During the rotation of the jacking rod, the working stability of the jacking rod can be effectively improved by setting a limit assembly.

[0035] During the implementation of this embodiment, it also includes a second connecting component 4 arranged between the pull wire 31 and the lifting rod 21. The second connecting component 4 includes a second connecting groove 40 arranged on one end of the lifting rod 21, and a second connecting end 41 arranged on the end of the pull wire 31. When the second connecting end 41 matches and extends into the second connecting groove 40, the pull wire 31 can drive the lifting rod 21 to rotate toward the direction close to the cylinder.

[0036] During the implementation of this embodiment, a damping winding assembly 5 is further included between the pull wire 31 and the second connecting assembly 4. After the pull wire 31 is wound on the damping winding assembly 5, the second connecting end 41 can be matched and extended into the second connecting groove 40.

[0037] In the implementation process of the embodiment, the damping winding assembly 5 comprises a fixing seat 50 arranged on the base 1, a winding groove 51 arranged on the fixing seat 50, and a winding roller 52 arranged in the winding groove 51 and matched with rotation, when the pull wire 31 is matched with winding arranged on the winding roller 52, the second connecting end 41 can be matched with extending into the second connecting groove 40.

[0038] In order to solve the technical problems proposed in the application, the application also provides a seat, which comprises the seat jacking device as described above.

[0039] The application provides a seat jacking device and a seat, which comprise a base, a jacking assembly arranged on the base and above a cylinder, and a driving assembly arranged on the base and connected with the jacking assembly, wherein the driving assembly comprises a lever arranged on the base, and a pull wire with one end arranged on the lever and the other end arranged on the jacking assembly, in the use process, the jacking assembly is driven to move towards the cylinder by the lever pulling the pull wire, so as to adjust the ground clearance of the cushion in cooperation with the cylinder, in the process of pulling the lever, the user can effectively avoid the direct contact between the lever and the output end of the cylinder, and avoid the violent collision between the lever and the output end of the cylinder, thereby effectively prolonging the service life of the jacking device, through the linkage of the pull wire, the damping feeling of the user pulling the lever is improved, the user experience is significantly improved, and the application has the advantages of stable structure, good user experience, low implementation cost, and easy popularization and implementation.

[0040] The above is only an embodiment of the application, and is not used to limit the application, any modification, equivalent replacement and improvement made within the spirit and principle of the application should be included in the protection scope of the application.

Claims

1. A seat lifting device, characterized in that: The invention comprises a base (1), a lifting assembly (2) arranged on the base (1) and located above the cylinder, and a driving assembly (3) arranged on the base (1) and connected to the lifting assembly (2), wherein the driving assembly (3) is used to drive the lifting assembly (2) to move toward the cylinder, and the driving assembly (3) comprises a shifting rod (30) arranged on the base (1), and a pulling wire (31) with one end arranged on the shifting rod (30) and the other end arranged on the lifting assembly (2), wherein the shifting rod (30) is used to pull the pulling wire (31) to drive the lifting assembly (2) to move toward the cylinder.

2. A seat lifting device according to claim 1, characterized in that: The lifting assembly (2) includes a first connecting assembly (20), and a lifting rod (21) rotatably arranged on the first connecting assembly (20) and located at a corresponding position above the cylinder. The pull wire (31) is arranged at the end of the lifting rod (21). When the shifting rod (30) pulls the pull wire (31), the pull wire (31) drives the lifting rod (21) to rotate toward the cylinder.

3. A seat lifting device according to claim 2, characterized in that: The first connecting assembly (20) includes a first connecting seat (22) provided on the base (1), a rotating groove (23) provided on the first connecting seat (22), and a rotating shaft (24) provided on the lifting rod (21) at a position corresponding to the rotating groove (23), wherein the rotating shaft (24) can be matched and extended into the rotating groove (23), the rotating shaft (24) is provided on one end of the lifting rod (21), and the pull wire (31) is provided on the other end of the lifting rod (21), and the pull wire (31) can drive the lifting rod (21) to rotate around the axis of the rotating shaft (24).

4. A seat lifting device according to claim 3, characterized in that: The first connecting assembly (20) further comprises a limiting assembly (25), wherein the limiting assembly (25) is used to limit the movement of the rotating shaft (24) in a direction away from the rotating groove (23).

5. A seat lifting device according to claim 4, characterized in that: The limiting assembly (25) includes limiting connection holes (26) provided on both ends of the rotation groove (23), and limiting bolts (27) matched with the limiting connection holes (26). When the rotation shaft (24) moves in a direction away from the rotation groove (23), the limiting bolts (27) abut against the rotation shaft (24) to limit the movement of the rotation shaft (24) in a direction away from the rotation groove (23).

6. The seat lifting device according to claim 2, characterized in that: It also includes a second connecting component (4) arranged between the pull wire (31) and the lifting rod (21), the second connecting component (4) includes a second connecting groove (40) arranged on one end of the lifting rod (21), and a second connecting end (41) arranged on the end of the pull wire (31), when the second connecting end (41) matches and extends into the second connecting groove (40), the pull wire (31) can drive the lifting rod (21) to rotate toward the cylinder.

7. The seat lifting device according to claim 6, characterized in that: It also includes a damping winding assembly (5) arranged between the pull wire (31) and the second connecting assembly (4); after the pull wire (31) is wound on the damping winding assembly (5), the second connecting end (41) can be matched and extended into the second connecting groove (40).

8. The seat lifting device according to claim 7, characterized in that: The damping winding assembly (5) includes a fixed seat (50) provided on the base (1), a winding groove (51) provided on the fixed seat (50), and a winding roller (52) arranged in the winding groove (51) for matching rotation. When the pulling wire (31) is matched and wound on the winding roller (52), the second connecting end (41) can match and extend into the second connecting groove (40).

9. A seat, characterized in that: The invention comprises a seat lifting device according to any one of claims 1 to 8.

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