Seat air pressure rod

Abstract

The utility model provides a kind of seat air pressure stick, comprising: air pressure stick body;Support foot, air pressure stick body is connected with support foot;Buffering component, buffering component includes buffer part and adjusting part, adjusting part is movably set relative to air pressure stick body, buffer part is connected with air pressure stick body and support foot respectively, by setting the first baffle of fixed on air pressure stick body, movable second baffle and at least two first grade buffer spring distributed along circumference interval, buffer part is jointly constituted, this scheme utilizes the arrangement of multiple first grade buffer spring, can provide uniform and sufficient buffer force, effectively disperses and absorbs impact load from each direction, avoids the structural instability or premature failure possibly caused by single-point buffering, ensures the stability and reliability of buffering process.

Description

Technical Field

[0001] This utility model relates to the field of gas spring technology, specifically to a seat gas spring. Background Technology

[0002] Seat gas springs are the core lifting components of modern office chairs, gaming chairs and other height-adjustable chairs. Their typical structure includes a cylinder, a piston rod and a sleeve at the bottom. The sleeve is usually fixed to the five-star base by plug-in or threaded connection to form a rigid connection, thereby transferring the user's weight to the ground.

[0003] Currently, research on seat comfort mainly focuses on the upper structure such as the seat surface, lumbar support, and armrests, while insufficient attention is paid to the transmission path of vibration from the ground to the human body. In existing technologies, the gas spring and the five-star base generally use a rigid connection, which ensures connection stability but has obvious defects: when the seat is lowered to the lowest position, the piston rod contacts the bottom of the cylinder, causing the gas spring to completely lose its cushioning function. When a heavier user sits down, the impact force is directly transmitted through the rigid structure, which not only significantly reduces riding comfort but also easily causes potential damage to the seat structure.

[0004] Existing solutions to this problem have significant shortcomings. For example, installing a simple cushioning structure on a five-star caster may provide some cushioning, but its cushioning performance is limited, cannot be adjusted, and cannot meet the personalized needs of users of different weights for cushioning, thus lacking universality.

[0005] Therefore, existing technologies need further development. Utility Model Content

[0006] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and provide a seat gas spring to solve the problem that the simple shock-absorbing structure installed on the five-star casters in the related technology has a certain shock-absorbing effect, but its shock-absorbing performance is limited, cannot be adjusted, and cannot meet the personalized needs of users of different weights for shock-absorbing softness and hardness, thus lacking universality.

[0007] To achieve the above technical objectives, the present invention adopts the following technical solution: a seat gas spring is provided, comprising: a gas spring body; a support leg, the gas spring body being connected to the support leg; and a buffer assembly, the buffer assembly comprising a buffer part and an adjustment part, the adjustment part being movably disposed relative to the gas spring body, and the buffer part being connected to the gas spring body and the support leg respectively.

[0008] Furthermore, the buffer assembly includes: a first baffle disposed on the pneumatic rod body; a second baffle movably disposed on the pneumatic rod body, the second baffle and the first baffle being spaced apart along the height direction of the pneumatic rod body; at least two primary buffer springs, each primary buffer spring being connected to the first baffle and the second baffle respectively, each primary buffer spring being spaced apart along the periphery of the first baffle; wherein, the first baffle, the second baffle, and each primary buffer spring constitute a buffer section.

[0009] Furthermore, the buffer assembly also includes: a first drive plate, a first threaded section on the body of the pneumatic rod, the first drive plate being threadedly engaged with the first threaded section to move through the thread direction of the first threaded section to push the second baffle toward the first baffle, wherein the first drive plate constitutes an adjustment part.

[0010] Furthermore, the buffer assembly also includes: at least two telescopic members, each telescopic member being configured in a one-to-one correspondence with each primary buffer spring, and each primary buffer spring being sleeved on each telescopic member; each telescopic member being connected to the first baffle and the second baffle respectively.

[0011] Furthermore, the telescopic component includes: a sliding cylinder connected to the side of the second baffle near the first baffle; and a sliding rod slidably disposed inside the sliding cylinder, the sliding rod abutting against the first baffle.

[0012] Furthermore, the buffer assembly also includes a secondary buffer spring, the two ends of which abut against the sliding cylinder and the sliding rod, respectively.

[0013] Furthermore, it also includes a sleeve, which is fitted onto the outside of the pneumatic rod body. The sleeve is connected to the second baffle and is located between the second baffle and the first baffle. The sleeve is used to separate each primary buffer spring from the first threaded section.

[0014] Furthermore, it also includes: a limiting plate, a second threaded section on the pneumatic rod body, the second threaded section and the first threaded section being spaced apart along the height direction of the pneumatic rod body, the limiting plate being threadedly connected to the second threaded section, and the limiting plate being located on the side of the support leg away from the buffer assembly.

[0015] Beneficial effects: 1. The buffer section is formed by setting a first baffle fixed on the body of the pneumatic rod, a movable second baffle, and at least two primary buffer springs distributed at intervals along the periphery. This scheme utilizes the arrangement of multiple primary buffer springs to provide uniform and sufficient buffering force, effectively disperse and absorb impact loads from all directions, avoid structural instability or premature failure that may be caused by single-point buffering, and ensure the smoothness and reliability of the buffering process.

[0016] 2. By adopting a specific telescopic component structure consisting of a sliding cylinder and a sliding rod slidably disposed therein, this solution provides a simple, low-cost, and efficient guiding mechanism. The sliding rod abuts against the first baffle, and the sliding cylinder is connected to the second baffle, so that the relative movement between the first baffle and the second baffle is precisely limited to linear sliding, effectively preventing the baffle from tilting during the buffering process and ensuring uniform force transmission.

[0017] 3. A secondary buffer mechanism is formed inside the telescopic component. When the stroke of the main buffer (first-level buffer spring) is large, the sliding rod will further compress the second-level buffer spring. This provides a gradual and additional buffer stage for the absorption of impact energy, forming a two-level buffer effect, which significantly improves the ability to cope with large impact loads and completely avoids rigid collisions that may occur inside the mechanism. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the seat gas spring used in this embodiment of the utility model; Figure 2 This is a partial structural schematic diagram of the seat gas spring used in this embodiment of the utility model; Figure 3 This is a cross-sectional view of the cushioning assembly of the seat gas spring used in this embodiment of the utility model.

[0019] The above figures include the following reference numerals: 1. Pneumatic rod body; 2. Second threaded section; 3. Buffer assembly; 4. First baffle; 5. Second baffle; 6. Primary buffer spring; 7. First drive plate; 8. First threaded section; 9. Miniature damper; 10. Sliding cylinder; 11. Sliding rod; 12. Secondary buffer spring; 13. Sleeve; 14. Limiting plate. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0021] According to an embodiment of this utility model, a seat gas spring is provided; please refer to [link / reference]. Figures 1 to 3 It includes: a pneumatic rod body 1; a support leg, the pneumatic rod body 1 being connected to the support leg; and a buffer assembly 3, the buffer assembly 3 including a buffer part and an adjustment part, the adjustment part being movably disposed relative to the pneumatic rod body 1, and the buffer part being connected to the pneumatic rod body 1 and the support leg respectively.

[0022] By adopting the above technical solution, an independent and adjustable mechanical buffer is introduced between the gas spring body 1 and the five-star foot (support leg), so that even when the seat is lowered to the lowest position and the internal buffer of the gas spring fails, the buffer component 3 can still effectively absorb the impact energy when the user sits down, significantly improving the riding comfort and protecting the seat structure.

[0023] Please refer to Figure 2 The buffer assembly 3 includes: a first baffle 4, which is disposed on the pneumatic rod body 1; a second baffle 5, which is movably disposed on the pneumatic rod body 1, and the second baffle 5 and the first baffle 4 are spaced apart along the height direction of the pneumatic rod body 1; at least two primary buffer springs 6, each primary buffer spring 6 being connected to the first baffle 4 and the second baffle 5 respectively, and each primary buffer spring 6 being spaced apart along the periphery of the first baffle 4; wherein, the first baffle 4, the second baffle 5 and each primary buffer spring 6 constitute a buffer section.

[0024] By adopting the above technical solution, a buffer section is formed by setting a first baffle 4 fixed on the pneumatic rod body 1, a movable second baffle 5, and at least two primary buffer springs 6 distributed at intervals along the periphery. This solution utilizes the arrangement of multiple primary buffer springs 6 to provide uniform and sufficient buffering force, effectively disperse and absorb impact loads from all directions, avoid structural instability or premature failure that may be caused by single-point buffering, and ensure the smoothness and reliability of the buffering process.

[0025] Please refer to Figure 2 The buffer assembly 3 also includes: a first drive plate 7, a first threaded section 8 on the air pressure rod body 1, the first drive plate 7 and the first threaded section 8 are threadedly engaged so as to move through the thread direction of the first threaded section 8 to push the second baffle 5 toward the first baffle 4, wherein the first drive plate 7 constitutes an adjustment part.

[0026] By adopting the above technical solution, and by setting a first drive plate 7 that is threadedly engaged with the first threaded section 8 on the gas bar body 1 as an adjustment part, this solution allows the user to drive the first drive plate 7 to move along the thread by rotating it, thereby precisely pushing the second baffle 5 toward the first baffle 4, realizing stepless adjustment of the pre-compression amount of the first-stage buffer spring 6. By adjusting the pre-compression amount, the initial stiffness and buffer stroke of the buffer system can be changed, thereby adapting to the personalized needs of users with different weights and achieving a high degree of customizability.

[0027] Please refer to Figure 2 The buffer assembly 3 also includes: at least two telescopic members, each telescopic member being configured in a one-to-one correspondence with each primary buffer spring 6, and each primary buffer spring 6 being sleeved on the telescopic member; each telescopic member being connected to the first baffle 4 and the second baffle 5 respectively.

[0028] By adopting the above technical solution and setting telescopic components that correspond one-to-one with each primary buffer spring 6, this solution provides a rigid internal support and guide structure for each spring. This design can effectively prevent the primary buffer springs 6 from radially bending, buckling, or entangled when compressed, ensuring that each primary buffer spring 6 always undergoes stable linear compression and rebound along the axial direction, thereby greatly improving the stability and reliability of the buffering process and extending the service life of the springs.

[0029] Please refer to Figure 3 The telescopic component includes: a sliding cylinder 10, which is connected to the side of the second baffle 5 near the first baffle 4; and a sliding rod 11, which is slidably disposed inside the sliding cylinder 10 and abuts against the first baffle 4.

[0030] By adopting the above technical solution, and by using a specific telescopic component structure consisting of a sliding cylinder 10 and a sliding rod 11 slidably disposed therein, this solution provides a simple, low-cost, and efficient guiding mechanism. The sliding rod 11 abuts against the first baffle 4, and the sliding cylinder 10 is connected to the second baffle 5, so that the relative movement between the first baffle 4 and the second baffle 5 is precisely limited to linear sliding, effectively preventing the baffle from tilting during the buffering process and ensuring the uniform transmission of force.

[0031] It also includes a micro damper 9, which is disposed between the first baffle 4 and the second baffle 5.

[0032] By adopting the above technical solution, and by independently setting the micro damper 9 between the first baffle 4 and the second baffle 5, this solution separates the damping function from the guiding function of the spring, optimizes the structural layout, and the micro damper 9 can efficiently absorb the energy generated by impact vibration, quickly dissipate the excess kinetic energy generated during the compression and release of the first-stage buffer spring 6, effectively suppress the oscillation of the entire buffer system, make the buffering action more gentle and crisp, and eliminate the uncomfortable bouncing sensation.

[0033] Please refer to Figure 3 The buffer assembly 3 also includes a secondary buffer spring 12, the two ends of which abut against the sliding cylinder 10 and the sliding rod 11, respectively.

[0034] By adopting the above technical solution, a secondary buffer mechanism is formed inside the telescopic component. When the stroke of the main buffer (first-level buffer spring 6) is large, the sliding rod 11 will further compress the second-level buffer spring 12. This provides a gradual and additional buffer stage for the absorption of impact energy, forming a two-level buffer effect, which significantly improves the ability to cope with large impact loads and completely avoids rigid collisions that may occur inside the mechanism.

[0035] Please refer to Figure 3 It also includes a sleeve 13, which is sleeved on the outside of the air pressure rod body 1. The sleeve 13 is connected to the second baffle 5 and is located between the second baffle 5 and the first baffle 4. The sleeve 13 is used to separate each primary buffer spring 6 from the first threaded section 8.

[0036] By adopting the above technical solution, the first baffle 4, the second baffle 5, and the first-stage buffer spring 6 are spatially separated from the first threaded section 8 and the first drive plate 7 by setting the sleeve 13. This solution effectively prevents the movement of the spring and telescopic parts from interfering with the operation of the threaded transmission pair during the buffering process. It also avoids the contamination of the buffer parts by lubricating oil stains or wear debris in the threaded part, thus protecting the internal precision structure and maintaining long-term stable operation.

[0037] Please refer to Figure 2 It also includes: a limiting plate 14, a second threaded section 2 on the air pressure rod body 1, the second threaded section 2 and the first threaded section 8 are spaced apart along the height direction of the air pressure rod body 1, the limiting plate 14 is threadedly connected to the second threaded section 2, and the limiting plate 14 is located on the side of the support leg away from the buffer assembly 3.

[0038] By adopting the above technical solution, by setting a second threaded section 2 on the sleeve of the gas spring body 1 and installing an adjustable limiting plate 14, and placing it below the support foot, this solution provides a mechanical hard stop for the entire downward stroke of the gas spring. The minimum height of the seat can be finely adjusted by rotating the limiting plate 14. More importantly, it ensures that the buffer assembly 3 always works within its designed stroke range, preventing damage to the buffer element due to excessive compression, and playing a role in safety protection.

[0039] The pneumatic rod body 1 includes a piston rod, a cylinder, and a sleeve. The piston rod is movably disposed inside the cylinder. The first threaded section 8 is disposed on the cylinder. The first baffle 4 is disposed on the cylinder. The sleeve is provided with a second threaded section 2 and a limiting plate 14 threadedly connected to the second threaded section 2.

[0040] This application can be applied to most gas springs on the market, and has nothing to do with the internal structure of the gas spring. Its internal structure does not affect the implementation of this application.

[0041] Working principle: The working process of this seat gas spring begins with the impact load generated when the user sits down, which is transmitted to the cushioning assembly 3 through the support legs. The impact force first acts on the second baffle 5, pushing it to move along the cylinder of the gas spring body 1 towards the first baffle 4. This movement forces the primary cushioning spring 6, which is sleeved on each telescopic component (composed of a sliding cylinder 10 and a sliding rod 11), to be compressed. At the same time, the piston rod of the miniature damper 9, located between the first baffle 4 and the second baffle 5, moves accordingly, generating damping force to dissipate energy. The telescopic components provide precise guidance for spring compression throughout the process, preventing instability. If the impact force is large, causing the primary cushioning spring 6 to compress to a certain stroke, the sliding rod 11 will begin to slide further within the sliding cylinder 10, compressing the secondary cushioning spring placed therein. Spring 12 enters the secondary buffering stage; through the progressive compression of these two springs and the coordinated energy dissipation of the micro damper 9, most of the impact energy is effectively absorbed and attenuated, and converted into mild elastic potential energy and thermal energy, thus providing a smooth and gentle buffering process; after the buffering ends, the compressed spring releases energy, pushing each component to reset, ready to cope with the next impact; the user can move the second baffle 5 by rotating the first drive plate 7 that cooperates with the first threaded section 8 on the cylinder, thereby changing the pre-compression of the primary buffer spring 6, so as to personalize the stiffness and initial softness of the buffering system; in addition, by rotating the limiting plate 14 that cooperates with the second threaded section 2 on the sleeve, the minimum height of the seat can be mechanically set, and the buffer assembly 3 can be prevented from being over-compressed.

[0042] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0043] Optionally, specific examples in this embodiment can refer to the examples described in the above embodiments, and will not be repeated here.

[0044] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0045] In the above embodiments of this application, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0046] The above description is only a preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications should also be considered within the scope of protection of this application.

Claims

1. A seat gas spring, characterized in that, include: Gas rod body (1); Support legs, the air pressure rod body (1) is connected to the support legs; The buffer assembly (3) includes a buffer section and an adjustment section. The adjustment section is movably disposed relative to the pneumatic rod body (1). The buffer section is connected to the pneumatic rod body (1) and the support leg, respectively.

2. The seat gas spring according to claim 1, characterized in that, The buffer component (3) includes: The first baffle (4) is disposed on the air pressure rod body (1); The second baffle (5) is movably disposed on the air pressure rod body (1), and the second baffle (5) and the first baffle (4) are spaced apart along the height direction of the air pressure rod body (1); At least two primary buffer springs (6), each of the primary buffer springs (6) is connected to the first baffle (4) and the second baffle (5) respectively, and each of the primary buffer springs (6) is spaced apart along the periphery of the first baffle (4); The first baffle (4), the second baffle (5), and each of the first-stage buffer springs (6) constitute the buffer section.

3. The seat gas spring according to claim 2, characterized in that, The buffer component (3) further includes: The first drive plate (7) has a first threaded section (8) on the air pressure rod body (1). The first drive plate (7) is threadedly engaged with the first threaded section (8) so as to move through the thread direction of the first threaded section (8) to push the second baffle (5) toward the first baffle (4). The first drive plate (7) constitutes the adjustment part.

4. The seat gas spring according to claim 2, characterized in that, The buffer component (3) further includes: At least two telescopic components are provided, each of which is corresponding to each of the first-level buffer springs (6), and each of the first-level buffer springs (6) is sleeved on each of the telescopic components; each of the telescopic components is connected to the first baffle (4) and the second baffle (5) respectively.

5. The seat gas spring according to claim 4, characterized in that, The telescopic component also includes: A sliding cylinder (10) is connected to the side of the second baffle (5) near the first baffle (4); A sliding rod (11) is slidably disposed inside the sliding cylinder (10), and the sliding rod (11) abuts against the first baffle (4).

6. The seat gas spring according to claim 5, characterized in that, The buffer assembly (3) further includes a secondary buffer spring (12), the two ends of which abut against the sliding cylinder (10) and the sliding rod (11) respectively.

7. The seat gas spring according to claim 3, characterized in that, It also includes a sleeve (13), which is sleeved on the outside of the air pressure rod body (1). The sleeve (13) is connected to the second baffle (5) and is located between the second baffle (5) and the first baffle (4). The sleeve (13) is used to separate each of the first-stage buffer springs (6) from the first threaded section (8).

8. The seat gas spring according to claim 3, characterized in that, Also includes: The limiting plate (14) has a second threaded section (2) on the air pressure rod body (1). The second threaded section (2) and the first threaded section (8) are spaced apart along the height direction of the air pressure rod body (1). The limiting plate (14) is threadedly connected to the second threaded section (2). The limiting plate (14) is located on the side of the support leg away from the buffer assembly (3).

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