A chair leg structure with double air pressure rods and foldable foot plates

Abstract

The utility model discloses a kind of chair leg structures with double air pressure rods and foldable foot pedals, including the first air pressure rod and the second air pressure rod outer sleeve are provided in seat chair leg center telescopic support, seat chair leg center is formed with the mounting hole compatible with telescopic support, seat chair leg is connected to the outside of telescopic support by mounting hole sleeve, foot pedal is movably connected with seat chair leg, and can be stored on seat chair leg, wherein, seat chair leg is installed on seat function base through the telescopic end sleeve connection of second air pressure rod;The utility model can be sleeved on the seat function base of the bottom with sleeve hole that consumer already has by the non-telescopic end sleeve connection of second air pressure rod, so that the chair leg of the chair is replaced with the chair leg structure of the utility model, make the chair of consumer become the chair that can stand and lean, simultaneously also have foldable foot pedal, not only save space, also avoid the inconvenience and security risk caused when not using, also retain the sliding convenience brought by ordinary chair leg and gyro wheel.

Description

Technical Field

[0001] This utility model relates to the field of seating technology, and in particular to a chair leg structure with dual gas springs and a foldable foot pedal. Background Technology

[0002] Scientific research shows that prolonged sitting is extremely harmful to human health, affecting the entire body, including increasing the risk of cardiovascular and cerebrovascular diseases, metabolic abnormalities, musculoskeletal injuries, and even lifespan. In the current trend of social development, people's work and lifestyles are increasingly inclined to sitting for long periods of time. As a result, different types of office chairs have gradually emerged, such as chairs with standing and leaning functions. Users can stand on the footrest of the chair and lean against the seat cushion to maintain a standing posture for working.

[0003] The Chinese utility model patent number is CN206380985U, entitled "A Lifting and Adjusting Structure for a Standing and Backrest Chair". It discloses a structure including a footboard, a support tube, and a backrest. Users can adjust the height of the backrest through the support tube, then stand on the footboard and lean against the backrest to form a standing and backrest posture. Although the above product can solve the user's need for standing and backrest, because its bottom is entirely a footboard instead of a normal chair with casters, and it cannot be stored, its actual application scenarios are limited and it is difficult to apply in most office scenarios.

[0004] Chinese utility model patent number CN211632469U, entitled "A Dual Gas Lever Lifting Adjustment Device", discloses a device including a first gas lever, a second gas lever, and a base connected to the end of the second gas lever. When in use, the user can adjust the height of the base through the first and second gas levers. The dual gas lever structure can cover the needs of most users with different height requirements. However, since it does not have a structure with a related standing and leaning function, it cannot meet the needs when the user wants to maintain a standing or leaning posture.

[0005] None of the aforementioned patents possess a structure that can transform a user's existing chair into one with standing and backing functions and dual gas springs. Consumers generally need to purchase a chair with standing and backing functions and dual gas springs separately, resulting in the original chair being idle and wasted. Therefore, there is an urgent need for a chair leg structure that can transform a consumer's existing chair with a functional chassis into one with standing and backing functions and dual gas springs. Utility Model Content

[0006] In view of the shortcomings of the above-mentioned technologies, such as the inability to cooperate with the functional chassis of the user's original seat through the gas spring and the lack of storage function of the foot pedal, which occupies unnecessary space, this utility model provides a chair leg structure with dual gas springs and a foldable foot pedal.

[0007] To achieve the above objectives, this utility model provides a chair leg structure with dual gas springs and a foldable footrest, comprising:

[0008] Seat legs;

[0009] A first pneumatic rod and a second pneumatic rod are provided, and a telescopic bracket is provided on the outer sleeve of the first pneumatic rod and the second pneumatic rod. The telescopic bracket is located at the center of the seat leg, and a mounting hole adapted to the telescopic bracket is formed at the center of the seat leg. The seat leg is sleeved on the outside of the telescopic bracket through the mounting hole. An adjustment component for controlling the raising and lowering of the first pneumatic rod is provided on one side of the telescopic bracket.

[0010] A foot pedal, which is movably connected to the seat leg and can be stored on the seat leg;

[0011] The seat legs are connected to the seat functional chassis with a hole at the bottom via the telescopic end of the second gas spring, and the raising and lowering of the second gas spring is controlled by the seat functional chassis.

[0012] As an improvement of this utility model, it also includes a storage mechanism, which is fixedly connected to the seat leg or the telescopic bracket. The foot pedal is flipped and connected to the storage mechanism. The foot pedal can be folded and stored on the seat leg through the storage mechanism. One end of the foot pedal connected to the storage mechanism is provided with a storage slot. In the stored state, the foot pedal fits against the telescopic bracket through the storage slot.

[0013] As an improvement of this utility model, the storage mechanism includes a fixed connector, a first folding member, and a second folding member. One end of the fixed connector is fixedly connected to the telescopic bracket or the seat leg, and the other end is hinged to one end of the first folding member. The other end of the first folding member is hinged to one end of the second folding member, and the other end of the second folding member is hinged to the foot pedal.

[0014] As an improvement of this utility model, the chair legs are five-star legs.

[0015] As an improvement of this utility model, the bottom of the seat legs is provided with rollers.

[0016] As an improvement of this utility model, the telescopic bracket includes a first sleeve, a second sleeve, and a third sleeve that are slidably fitted together in sequence. The first sleeve is fitted into the mounting hole. The non-telescopic ends of the first pneumatic rod and the second pneumatic rod are fixedly disposed inside the second sleeve. The telescopic end of the first pneumatic rod is fixedly connected to the first sleeve, and the telescopic end of the second pneumatic rod is fixedly connected to the third sleeve. When the telescopic ends of the first pneumatic rod and the second pneumatic rod extend or retract, they drive the second sleeve and the third sleeve to slide.

[0017] As an improvement of this utility model, the end face of the telescopic end is provided with a pressure release button, one end of the adjusting member abuts against the pressure release button, the side of the telescopic bracket is provided with a hinge part, and the adjusting member is hinged to the hinge part so that the adjusting member can flip relative to the telescopic bracket to press the pressure release button.

[0018] As an improvement of this utility model, the outer wall surface of the telescopic ends of the first pneumatic rod and the second pneumatic rod are both formed with external threads, and the first sleeve and the third sleeve are both provided with threaded openings. The telescopic ends of the first pneumatic rod and the second pneumatic rod are respectively connected to the first sleeve and the third sleeve by the external threads of the telescopic ends and the threaded openings to achieve a fixed connection.

[0019] As an improvement of this utility model, the first sleeve and the second sleeve are respectively provided with a first limiting groove and a second limiting groove. The second sleeve and the third sleeve are respectively provided with a first limiting block that fits into the first limiting groove and a second limiting block that fits into the second limiting groove. When the second sleeve and the third sleeve slide and extend to the limit position, the first limiting block and the second limiting block are respectively embedded into the first limiting groove and the second limiting groove.

[0020] The beneficial effects of this utility model are as follows: Compared with the prior art, this utility model provides a chair leg structure with dual gas springs and a foldable foot pedal. It includes a first gas spring and a second gas spring, with a telescopic bracket mounted on the center of the chair leg. The center of the chair leg has a mounting hole adapted to the telescopic bracket. The chair leg is fitted onto the outside of the telescopic bracket through the mounting hole. The foot pedal is movably connected to the chair leg and can be stored on it. The chair leg is mounted on the seat base via the telescopic end of the second gas spring. This utility model allows the non-telescopic end of the second gas spring to be fitted onto an existing seat base with a mounting hole at the bottom, thus replacing the chair leg with the structure of this utility model. This transforms the chair into a chair that can be used for standing and leaning, while also providing a foldable foot pedal. This not only saves space but also avoids inconvenience and safety hazards when not in use, while retaining the sliding convenience of ordinary chair legs and casters. Attached Figure Description

[0021] Figure 1 This is a first perspective view of the present invention;

[0022] Figure 2 This is a second perspective view of the present invention;

[0023] Figure 3 This is a schematic diagram of the first storage state of this utility model;

[0024] Figure 4 This is a schematic diagram of the second storage state of this utility model;

[0025] Figure 5 This is an exploded view of the telescopic support of this utility model;

[0026] Figure 6 This is a third perspective view of the present invention;

[0027] Figure 7 This is a diagram showing the usage state of this utility model;

[0028] Figure 8 This is a schematic diagram of the foot pedal of this utility model.

[0029] The symbols for the main components are explained below:

[0030] 1. Seat legs; 2. First gas spring; 3. Second gas spring; 4. Foot pedal; 41. Storage slot; 5. Telescopic bracket; 51. First sleeve; 511. First limiting slot; 52. Second sleeve; 521. Second limiting slot; 522. First limiting block; 53. Third sleeve; 531. Second limiting block; 6. Adjustment component; 7. Gas pressure release button; 8. Storage mechanism; 81. Fixed connector; 82. First folding component; 83. Second folding component; 9. Seat functional chassis; 10. Threaded opening; 11. External thread; 12. Hinge; 13. Telescopic end; 14. Roller. Detailed Implementation

[0031] To more clearly illustrate this utility model, the following description, in conjunction with the accompanying drawings, will provide a further picture.

[0032] In the following description, specific examples are given to provide a more in-depth understanding of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of them. It should be understood that the specific embodiments described are only used to explain the present invention and are not intended to limit the present invention.

[0033] It should be understood that when the terms “comprising” and / or “including” are used in this specification, they indicate the presence of the said feature, integral, step, operation, element, or component, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, or combinations thereof.

[0034] Please see Figures 1-8 The present invention relates to a chair leg structure having dual gas springs and a foldable foot pedal, comprising:

[0035] Seat legs 1;

[0036] The first gas spring and the second gas spring are covered with a telescopic bracket. The telescopic bracket is located at the center of the seat leg. The center of the seat leg has a mounting hole that matches the telescopic bracket. The seat leg is fitted onto the outside of the telescopic bracket through the mounting hole. One side of the telescopic bracket is provided with an adjustment component for controlling the raising and lowering of the first gas spring.

[0037] The foot pedal is movably connected to the seat leg and can be stored on the seat leg.

[0038] The seat legs are connected to the seat function chassis with holes at the bottom via the telescopic end of the second gas spring, and the raising and lowering of the second gas spring is controlled by the seat function chassis.

[0039] The chair leg structure provided by this utility model has a dual pneumatic rod lifting structure and a retractable footrest 4. In practical applications, the chair leg structure can be quickly assembled onto the seat of the seat functional chassis 9 with a sleeve hole at the bottom via the telescopic end 13 of the second pneumatic rod 3. It can also be installed in the seat functional chassis 9 of the consumer's existing seat via the telescopic end 13 of the second pneumatic rod 3. The telescopic end can be understood as the push rod of the second pneumatic rod 3, with the end of the push rod away from the second pneumatic rod 3 engaging with the sleeve hole of the seat functional chassis 9. This is equivalent to the second pneumatic rod 3 being fixedly connected to the seat functional chassis 9 via the telescopic end 13, thus achieving a fixed connection between the chair leg structure and the seat. This gives the seat a dual pneumatic rod and footrest 4 component. The user can adjust the height of the seat by adjusting the extension and retraction of the first pneumatic rod 2 via the adjusting component 6, and can also adjust the height of the seat by controlling the extension and retraction of the second pneumatic rod 3 via the seat functional chassis 9. This is in contrast to the adjustment via a single pneumatic rod. The dual gas springs of this invention have a higher height adjustment limit and a longer adjustment stroke. In actual operation, users can freely choose to adjust the extension and retraction of the first gas spring 2 through the adjusting component 6 to achieve a fine adjustment of the seat height according to their height and needs, or control the extension and retraction of the second gas spring 3 through the seat function chassis 9 to achieve a larger range of seat height adjustment. In addition, when users need to rest and relax after sitting for a long time or need to continue working, they can unfold the footrest 4 from the seat leg 1, place their feet on the footrest 4, and then rest their buttocks on the seat cushion to effectively relieve leg fatigue. When users do not need to use the footrest 4, it can be easily stored on the seat leg 1 to avoid taking up extra space, making the overall seat look more concise and beautiful. It not only meets the user's needs for seat height adjustment, but also provides extra comfort and greatly improves the user experience.

[0040] In this embodiment, a storage mechanism 8 is also included. The storage mechanism 8 is fixedly connected to the seat leg 1 or the telescopic bracket 5. The foot pedal 4 is flipped and connected to the storage mechanism 8. The foot pedal 4 can be folded and stored on the seat leg 1 through the storage mechanism 8. The end of the foot pedal 4 connected to the storage mechanism 8 is provided with a storage slot 41. In the stored state, the foot pedal 4 fits against the telescopic bracket 5 through the storage slot 41. The storage mechanism 8 is fixedly connected to the seat leg 1, and the foot pedal 4 is flipped and connected to the storage mechanism 8. The storage slot 41 fits against the telescopic bracket 5 to save space occupied by the foot pedal 4. When the user uses it, it can also be unfolded through the storage mechanism 8 to provide the user with a convenient user experience.

[0041] In this embodiment, the chair leg 1 is a five-pointed star base. The five-pointed star base design makes the entire chair leg structure more stable and able to withstand greater weight. Specifically, the five-pointed star base consists of five legs arranged in a five-pointed star shape. The shape of the five-pointed star base also helps to distribute pressure and improve the stability and safety of the chair. The bottom of the chair leg 1 is equipped with casters 14. The design of the casters 14 allows the chair to be moved easily, making it convenient for users to work or rest in different positions. When the user needs to move the chair, they only need to gently push the chair, and the casters 14 will roll smoothly to move the chair to the desired position. The flexibility of the casters 14 not only improves the convenience of the chair, but also makes the user more comfortable and free when using the chair.

[0042] In this embodiment, the storage mechanism 8 includes a fixed connector 81, a first folding member 82, and a second folding member 83. One end of the fixed connector 81 is fixedly connected to the telescopic bracket 5 or the seat leg 1, and the other end is hinged to one end of the first folding member 82. The other end of the first folding member 82 is hinged to one end of the second folding member 83, and the other end of the second folding member 83 is hinged to the foot pedal 4. When the user folds and stores the foot pedal 4, the foot pedal 4 must first be flipped over and folded onto the second folding member 83. Subsequently, the second folding member 83... The foot pedal 4 is then flipped and folded onto the first folding piece 82, at which point it is fully stowed. There are also stops on both sides of the first folding piece 82, which are mainly used to limit the first folding piece 82 and prevent it from over-flipping after it is unfolded. There is also a storage slot 41 on the foot pedal 4 that is adapted to the second folding piece 83. When the second folding piece 83 is in the folded storage state, it can be placed into the storage slot 41 to save space occupied by the storage mechanism 8.

[0043] In this embodiment, the telescopic bracket 5 includes a first sleeve 51, a second sleeve 52, and a third sleeve 53 that are slidably fitted together in sequence. The first sleeve 51 is fitted into the mounting hole. The non-telescopic ends of the first pneumatic rod 2 and the second pneumatic rod 3 are fixedly disposed inside the second sleeve 52. The telescopic end of the first pneumatic rod 2 is fixedly connected to the first sleeve 51, and the telescopic end of the second pneumatic rod 3 is fixedly connected to the third sleeve 53. When the telescopic ends of the first pneumatic rod 2 and the second pneumatic rod 3 extend or retract, they drive the second sleeve 52 and the third sleeve 53 to slide. By fixing the non-telescopic ends of the first pneumatic rod 2 and the second pneumatic rod 3 in the second sleeve 52, the non-telescopic ends can also be understood as pneumatic rods. The cylinder body is then constructed, and the telescopic ends of the first gas spring 2 and the second gas spring 3 are fixedly connected to the first sleeve 51 and the third sleeve 53, respectively. Since the first sleeve 51 is fixedly connected to the seat leg 1, when the first gas spring 2 and the second gas spring 3 extend or retract, the first gas spring 2 drives the second sleeve 52 and the third sleeve 53 to slide upward relative to the first sleeve 51, thereby disengaging from the first sleeve 51 and raising the height of the seat. Conversely, it lowers the height of the seat. Similarly, the second gas spring 3 drives the third sleeve 53 to slide upward, thereby disengaging from the first sleeve 51 and the second sleeve 52. Users can adjust the first gas spring 2 and the second gas spring 3 in sequence to achieve a higher upper limit for their needs.

[0044] In this embodiment, the end face of the telescopic end is provided with a pressure release button 7, one end of the adjusting member 6 abuts against the pressure release button 7, and the side of the telescopic bracket 5 is provided with a hinge part 12. The adjusting member 6 is hinged to the hinge part 12 so that the adjusting member 6 can flip relative to the telescopic bracket 5 to press the pressure release button 7. When the user wants to adjust the telescopic extension of the first gas rod 2, he only needs to press the adjusting member 6 to press the pressure release button 7, thereby releasing the air pressure inside the first gas rod 2, and thus allowing the first gas rod 2 to be adjusted telescopically. Similarly, the second gas rod 3 is also provided with the same pressure release button 7, and its telescopic adjustment is also adjusted by pressing the adjusting member 6 on the seat function chassis 9, so that the user can adjust the telescopic extension of the second gas rod 3 independently. The user can easily adjust the height of the seat according to his own needs, improving the convenience and comfort of use.

[0045] In this embodiment, the outer wall surface of the telescopic ends of the first gas spring 2 and the second gas spring 3 are both formed with external threads 11. The first sleeve 51 and the third sleeve 53 are both provided with threaded openings 10. The telescopic ends of the first gas spring 2 and the second gas spring 3 are fixedly connected to the first sleeve 51 and the third sleeve 53 respectively through the threaded engagement of the external threads 11 and the threaded openings 10 of the telescopic ends. The threaded engagement design not only enhances the stability of the connection between the gas spring and the sleeve, but also helps to ensure the smooth operation of the gas spring during the telescopic process. When the gas spring is telescopic, the tight engagement between the external threads 11 and the threaded openings 10 can effectively prevent the gas spring from shaking or falling off, thereby improving the overall stability and safety of the seat. In addition, the threaded connection method also makes it easy for users to disassemble and install. When it is necessary to maintain or replace the gas spring or the sleeve, it is only necessary to simply unscrew the threaded connection, which greatly improves the convenience of use.

[0046] In this embodiment, the first sleeve 51 and the second sleeve 52 are respectively provided with a first limiting groove 511 and a second limiting groove 521. The second sleeve 52 and the third sleeve 53 are respectively provided with a first limiting block 522 that fits into the first limiting groove 511 and a second limiting block 531 that fits into the second limiting groove 521. When the second sleeve 52 and the third sleeve 53 slide and extend to the limit position, the first limiting block 522 and the second limiting block 531 are respectively embedded into the first limiting groove 511 and the second limiting groove 521, thereby realizing the limiting and fixing of the second sleeve 52 and the third sleeve 53. When a user needs to make fine adjustments to the seat height, they can press the gas spring on the adjusting component 6 of the seat's functional chassis 9. At this time, the second sleeve 52 and the third sleeve 53 will slide and extend under the action of the gas spring until the desired height is reached. When the second sleeve 52 and the third sleeve 53 slide to their limit positions, the first limiting block 522 and the second limiting block 531 will respectively engage with the first limiting groove 511 and the second limiting groove 521, effectively preventing the second sleeve 52 and the third sleeve 53 from continuing to slide, ensuring the stability and safety of the seat height. Furthermore, this limiting design also prevents the second sleeve 52 and the third sleeve 53 from accidentally sliding due to external force when the gas spring suddenly retracts, further enhancing the stability and safety of the seat.

[0047] The advantages of this utility model are:

[0048] 1. The chair leg structure of this utility model can be quickly assembled by cooperating with the seat function chassis of the consumer's existing seat through the second gas spring, so that the seat has two gas springs and a foot pedal. The seat has the dual gas springs to adjust the height of the seat, which meets the height adjustment needs of different users. At the same time, it can be used with the foot pedal to realize flexible height adjustment function.

[0049] 2. Through the cooperation of the storage mechanism and the foot pedal, the foot pedal can be conveniently stored and unfolded, effectively saving space and improving the practicality and flexibility of the seat. When the foot pedal is not in use, users can easily fold it up and store it through the storage mechanism, avoiding the drawback of traditional foot pedals taking up too much space when not in use. At the same time, the design of the storage mechanism makes the folding process smoother, reducing the difficulty of operation for users and improving the user experience.

[0050] The above-disclosed embodiments are only a few specific examples of this utility model. However, this utility model is not limited thereto. Any variations that can be conceived by those skilled in the art should fall within the protection scope of this utility model.

Claims

1. A chair leg structure comprising dual gas springs and a foldable footrest, characterized in that, include: Seat legs; A first pneumatic rod and a second pneumatic rod are provided, and a telescopic bracket is provided on the outer sleeve of the first pneumatic rod and the second pneumatic rod. The telescopic bracket is located at the center of the seat leg, and a mounting hole adapted to the telescopic bracket is formed at the center of the seat leg. The seat leg is sleeved on the outside of the telescopic bracket through the mounting hole. An adjustment component for controlling the raising and lowering of the first pneumatic rod is provided on one side of the telescopic bracket. A foot pedal, which is movably connected to the seat leg and can be stored on the seat leg; The seat legs are connected to the seat functional chassis with a hole at the bottom via the telescopic end of the second gas spring, and the raising and lowering of the second gas spring is controlled by the seat functional chassis.

2. The chair leg structure with dual gas springs and a foldable footrest according to claim 1, characterized in that, It also includes a storage mechanism, which is fixedly connected to the seat leg or the telescopic bracket. The foot pedal is flipped and connected to the storage mechanism. The foot pedal can be folded and stored on the seat leg through the storage mechanism. One end of the foot pedal connected to the storage mechanism is provided with a storage slot. In the stored state, the foot pedal fits against the telescopic bracket through the storage slot.

3. A chair leg structure with dual gas springs and a foldable footrest according to claim 2, characterized in that, The storage mechanism includes a fixed connector, a first folding member, and a second folding member. One end of the fixed connector is fixedly connected to the telescopic bracket or the seat leg, and the other end is hinged to one end of the first folding member. The other end of the first folding member is hinged to one end of the second folding member, and the other end of the second folding member is hinged to the foot pedal.

4. A chair leg structure with dual gas springs and a foldable footrest according to claim 3, characterized in that, The chair legs are five-star legs.

5. A chair leg structure with dual gas springs and a foldable footrest according to claim 4, characterized in that, The seat legs are equipped with casters at the bottom.

6. A chair leg structure with dual gas springs and a foldable footrest according to claim 1, characterized in that, The telescopic bracket includes a first sleeve, a second sleeve, and a third sleeve that are slidably fitted together in sequence. The first sleeve is fitted into the mounting hole. The non-telescopic ends of the first pneumatic rod and the second pneumatic rod are fixedly disposed inside the second sleeve. The telescopic end of the first pneumatic rod is fixedly connected to the first sleeve, and the telescopic end of the second pneumatic rod is fixedly connected to the third sleeve. When the telescopic ends of the first pneumatic rod and the second pneumatic rod extend or retract, they drive the second sleeve and the third sleeve to slide.

7. A chair leg structure with dual gas springs and a foldable footrest according to claim 6, characterized in that, The telescopic end is provided with a pressure release button, one end of the adjusting member abuts against the pressure release button, the side of the first sleeve is provided with a hinge part, and the adjusting member is hinged to the hinge part so that the adjusting member can be flipped relative to the first sleeve to press the pressure release button.

8. A chair leg structure with dual gas springs and a foldable footrest according to claim 7, characterized in that, Both the first and second pneumatic rods have external threads on the outer wall of their telescopic ends. Both the first and third sleeves have threaded openings. The telescopic ends of the first and second pneumatic rods are fixedly connected to the first and third sleeves respectively through the threaded engagement of the external threads of the telescopic ends with the threaded openings.

9. A chair leg structure with dual gas springs and a foldable footrest according to claim 8, characterized in that, The first sleeve and the second sleeve are respectively provided with a first limiting groove and a second limiting groove. The second sleeve and the third sleeve are respectively provided with a first limiting block that engages with the first limiting groove and a second limiting block that engages with the second limiting groove. When the second sleeve and the third sleeve slide and extend to the limit position, the first limiting block and the second limiting block are respectively embedded in the first limiting groove and the second limiting groove.

Images