Office chair

Abstract

The utility model relates to the technical field of office chairs, and discloses an office chair, which comprises an office chair body and a star-shaped wheel moving frame for supporting the office chair body, universal wheels for moving are respectively arranged at the end parts of the star-shaped wheel moving frame, an extension column extending downwards is arranged in the middle of the star-shaped wheel moving frame, and the star-shaped wheel moving frame is connected with the extension column. A supporting body with a sleeve is arranged on the extending column in a sleeved mode, two penetrating holes are symmetrically and fixedly formed in the abdomen portion of the supporting body and used for the telescopic rod to slide back and forth in a telescopic mode, a pedal used for treading is fixedly arranged at the front end of the telescopic rod, and the sleeve is fastened on the extending column through a bolt. And the mounting height of the supporting body can be adjusted according to actual requirements. During treading, the seat is lifted, then feet tread on the pedal and drag the pedal forwards, so that treading can be carried out, the pedal is located on the front side of the star-shaped wheel moving frame so that the shanks can tread on the pedal forwards conveniently, the posture facilitates leg relaxing, and compared with an existing pedal, the pedal is more scientific and reasonable.

Description

Technical Field

[0001] The utility model relates to the technical field of office chairs, in particular to an office chair. Background Art

[0002] The existing patent publication number is CN219699451U, which discloses a seat footrest and seat that can be adjusted up and down, and the seat footrest includes: a footrest body, including a foot pedal and a foot pedal support rod fixed to the bottom of the foot pedal; a foot pedal support seat, which has a slideway inside, and the foot pedal support rod can be slid up and down and installed in the slideway; a locking member, which is installed on the foot pedal support seat, and has a locking portion that can extend into the slideway and abut against the foot pedal support rod for sliding and locking. The seat footrest of the utility model adjusts the height of the foot pedal by adjusting the position of the foot pedal support rod in the slideway of the foot pedal support seat by sliding up and down, and the foot pedal support rod is slidably locked by the locking member to keep the foot pedal at the height to be adjusted. The seat footrest of this embodiment is installed on the seat, which can adapt to more age groups and more usage scenarios, and the adjustment method is simple and convenient, which is easy for users to operate and improves the user experience.

[0003] However, the pedal of the above patent cannot be stored inside the seat, so when there is no need to step on the seat, the heel and the back of the calf may scrape the pedal, so this case is filed. Utility Model Content

[0004] The technical problem to be solved by the utility model is: in order to overcome the above problems, an office chair is provided, which solves the above problems.

[0005] The utility model solves the technical problem by adopting the following technical solutions:

[0006] An office chair comprises an office chair body and a star-shaped wheel frame supporting the office chair body, wherein each end of the star-shaped wheel frame is provided with a universal wheel for movement;

[0007] In addition, an extension column extending downward is provided in the middle of the star-shaped shift wheel frame, a support body with a sleeve is mounted on the extension column, two through holes are symmetrically fixed on the abdomen of the support body for the telescopic rod to slide forward and backward, and a pedal for stepping on is fixed at the front end of the telescopic rod, the sleeve is fastened to the extension column by bolts, and the installation height of the support body can be adjusted according to actual needs.

[0008] Preferably, a linear sliding bearing is fixedly provided in the support body for engaging with the telescopic rod, so as to facilitate smooth sliding of the telescopic rod back and forth.

[0009] Preferably, in order to improve the load-bearing capacity of the pedal when stepped on, a universal stabilizing support wheel is bolted to the lower end surface of the front end of the pedal, and the universal stabilizing support wheel contacts the ground to effectively increase the load-bearing capacity of the pedal.

[0010] Preferably, an end cap is threadedly connected to the tail end of the telescopic rod, and a return spring is sleeved on the telescopic rod to retract the telescopic rod back to its original position, so that the telescopic rod can be automatically retracted when not stepped on.

[0011] Preferably, when the pedal is in the storage state, the pedal and the ends of the telescopic rod do not exceed the coverage of the star-shaped shifting wheel frame, which makes it easy to control the size of the chair and facilitates normal movement.

[0012] Preferably, in order to stably pull out the pedal, a herringbone anti-skid pattern is engraved on the upper end surface of the pedal, so that the pedal can be pulled forward by stepping on it, which is convenient for stepping on.

[0013] The advantages and positive effects of the utility model are: when pedaling, the seat is raised, and then the foot is stepped on the pedal and dragged forward, so that pedaling can be carried out, and the pedal is located on the front side of the star-shaped shifting wheel frame, so it is convenient for the calf to step forward, and this posture is convenient for relaxing the legs. Compared with the existing foot pedals, it is more scientific and reasonable and has a simple structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0015] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0016] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0017] The following is a further description of the embodiments of the present invention in conjunction with the accompanying drawings:

[0018] like Figure 1 As shown, an office chair according to the utility model comprises an office chair body 10 and a star-shaped wheel frame 11 supporting the office chair body 10, wherein each end of the star-shaped wheel frame 11 is provided with a universal wheel for movement;

[0019] In addition, an extension column 12 extending downward is provided in the middle of the star-shaped shift wheel frame 11, and a support body 14 with a sleeve 13 is mounted on the extension column 12. Two through holes are symmetrically fixed on the abdomen of the support body 14 for the telescopic rod 15 to telescope and slide forward and backward, and a pedal 16 for stepping on is fixed at the front end of the telescopic rod 15. The sleeve 13 is fastened to the extension column 12 by bolts, and the installation height of the support body 14 can be adjusted according to actual needs.

[0020] Preferably, a linear sliding bearing is fixedly provided in the support body 14 for inserting and cooperating with the telescopic rod 15 to facilitate smooth sliding of the telescopic rod 15 back and forth.

[0021] Preferably, in order to improve the load-bearing capacity of the pedal 16 when stepped on, a universal stabilizing support wheel 17 is bolted to the lower end surface of the front end of the pedal 16 , and the universal stabilizing support wheel 17 contacts the ground and effectively increases the load-bearing capacity of the pedal 16 .

[0022] Preferably, a sealing cap is threadedly connected to the tail end of the telescopic rod 15, and a return spring 18 is sleeved on the telescopic rod 15 for retracting the telescopic rod 15 back to its original position, so that the telescopic rod 15 can be automatically retracted when not stepped on.

[0023] Preferably, when the pedal 16 is in the storage state, the ends of the pedal 16 and the telescopic rod 15 do not exceed the coverage of the star-shaped shifting wheel frame 11, which makes it easy to control the size of the chair and facilitates normal movement.

[0024] Preferably, in order to stably pull out the pedal 16, a herringbone anti-skid pattern is engraved on the upper end surface of the pedal 16, so that the pedal 16 can be pulled forward by stepping on it, which is convenient for stepping on.

[0025] In specific implementation, when pedaling, the seat is raised, and then the foot is stepped on the pedal 16 and dragged forward, so that pedaling can be performed, and the pedal 16 is located on the front side of the star-shaped shifting wheel frame 11, so it is convenient for the calf to step forward. This posture is convenient for relaxing the legs, and is more scientific and reasonable than the existing foot pedals, and has a simple structure.

[0026] It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive. Therefore, the present invention is not limited to the embodiments described in the specific implementation manner. Any other implementation manner derived by those skilled in the art based on the technical solution of the present invention also falls within the scope of protection of the present invention.

Claims

1. An office chair, comprising an office chair body (10) and a star-shaped wheel frame (11) supporting the office chair body (10), wherein each end of the star-shaped wheel frame (11) is provided with a universal wheel for movement; characterized in that: In addition, an extension column (12) extending downward is provided in the middle of the star-shaped shifting wheel frame (11), a support body (14) with a sleeve (13) is mounted on the extension column (12), two through holes are symmetrically fixed on the abdomen of the support body (14) for the telescopic rod (15) to telescope and slide forward and backward, and a pedal (16) for stepping on is fixed at the front end of the telescopic rod (15), the sleeve (13) is fastened to the extension column (12) by bolts, and the installation height of the support body (14) can be adjusted according to actual needs.

2. An office chair according to claim 1, characterized in that: A linear sliding bearing is also fixedly arranged in the support body (14) for insertion and cooperation with the telescopic rod (15).

3. An office chair according to claim 2, characterized in that: A universal stabilizing support wheel (17) is bolted to the lower end surface of the front end of the pedal (16); the universal stabilizing support wheel (17) is in contact with the ground, thereby effectively increasing the load-bearing capacity of the pedal (16).

4. An office chair according to claim 3, characterized in that: An end cap is threadedly connected to the rear end of the telescopic rod (15), and a return spring (18) is sleeved on the telescopic rod (15) for retracting the telescopic rod (15) back to its original position.

5. An office chair according to claim 4, characterized in that: When the pedal (16) is in the retracted state, the ends of the pedal (16) and the telescopic rod (15) do not exceed the coverage range of the star-shaped shifting wheel frame (11).

6. An office chair according to claim 5, characterized in that: In order to stably pull out the pedal (16), a herringbone anti-slip pattern is engraved on the upper end surface of the pedal (16).

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