An adjustable chair suitable for a standing position

Abstract

The utility model provides a kind of adjustable chair suitable for station posture, including base, support frame and backrest, the support frame includes fixed frame and connecting frame, the fixed frame is fixed on the base, the connecting frame is assembled on the fixed frame and can be adjusted relative to fixed frame lifting, the backrest is assembled on the connecting frame;So as to realize the lifting adjustment of backrest, to better adapt to different height of user population.

Description

Technical Field

[0001] This utility model relates to the field of daily and office supplies, specifically to an adjustable chair suitable for standing posture. Background Technology

[0002] A chair is a piece of furniture that provides a place to sit, and existing chairs are usually associated with sitting posture. However, prolonged sitting at work or in daily life is detrimental to health, and appropriate activity or changing posture can provide good relief. But, especially in busy work environments, people have to work continuously for long periods, and to alleviate discomfort, they often choose to stand up while working. Utility model patent CN222929451U discloses a chair suitable for standing posture, providing good support for standing people to distribute leg pressure. However, this chair has the following shortcomings: 1. The height is not adjustable, making it unsuitable for people of different heights; 2. The angle of the buttocks backrest (i.e., the seat) is not adjustable, failing to accommodate different leaning angles. Utility Model Content

[0003] Therefore, this utility model provides an adjustable chair suitable for standing posture, mainly to solve the above-mentioned problem of the inability to adjust the height.

[0004] To achieve the above objectives, the technical solution provided by this utility model is as follows: An adjustable chair suitable for standing includes a base, a support frame, and a backrest. The support frame includes a fixed frame and a connecting frame. The fixed frame is fixed to the base, and the connecting frame is mounted on the fixed frame and can be adjusted up and down relative to the fixed frame. The backrest is mounted on the connecting frame.

[0005] Furthermore, the fixing frame has two vertically arranged fixing tubes, and the connecting frame has two sleeves. The two sleeves of the connecting frame are respectively fitted into the two fixing tubes of the fixing frame to achieve height adjustment.

[0006] Furthermore, the fixing tube is provided with multiple limiting holes in the vertical direction, and the sleeve is provided with an elastic pin. The sleeve is fixed to the fixing tube by inserting the elastic pin into one of the limiting holes of the fixing tube.

[0007] Furthermore, the two sleeves of the connecting frame are connected by a handle, and the handle is provided with a control key, which is used to control the retraction of the elastic pin on the sleeve.

[0008] Furthermore, the control key is a push button, and a drive rod is provided inside the sleeve. The top end of the drive rod is fixedly connected to the control key, and the bottom end of the drive rod forms an oblique guide engagement with the elastic pin. Pressing the control key causes the drive rod to descend, thereby driving the elastic pin to retract.

[0009] Furthermore, the two fixing tubes of the fixing frame are connected by at least two connecting tubes.

[0010] Furthermore, the fixing frame is detachably fixed to the base; the base is provided with a foot pedal for stepping on.

[0011] Furthermore, the support is rotatable and can be mounted on the connecting frame.

[0012] Furthermore, a hinge frame is mounted on the connecting frame, and the support is fixed to the hinge frame.

[0013] Furthermore, the hinge frame includes a U-shaped frame and two fixing members, which are respectively hinged to both ends of the U-shaped frame. The backrest is fixed on the U-shaped frame, and both fixing members are assembled on the connecting frame. The hinge structure between the fixing members and the U-shaped frame is a damped hinge structure; or the fixing members and the U-shaped frame are hinged by an angle adjuster.

[0014] The technical solution provided by this utility model has the following beneficial effects: 1. The support frame's fixing frame and connecting frame are equipped with adjustable height, thereby enabling the seat to be adjusted in height to better accommodate users of different heights.

[0015] 2. The backrest is mounted on the connecting frame in a flip-up manner, allowing for angle adjustment to accommodate different leaning angles. Attached Figure Description

[0016] Figure 1 The figure shown is a three-dimensional schematic diagram of an adjustable chair suitable for standing posture in the embodiment. Figure 2 The image shown is in Figure 1 The diagram shows the seat after it has been raised, based on the previous design. Figure 3 The image shown is a side view of an adjustable chair suitable for standing posture in the embodiment. Figure 4 The image shown is in Figure 3 This is a diagram illustrating the adjustment of the seat angle backwards. Figure 5 A cross-sectional view of an adjustable chair suitable for standing posture in the illustrated embodiment; Figure 6 As shown Figure 5 Enlarged view of region A in the middle; Figure 7 The diagram shown is a partial structural exploded view of the adjustable chair suitable for standing posture in the embodiment. Figure 8 The diagram shown is a schematic of the adjustable chair suitable for standing posture in the embodiment in its stowed state. Detailed Implementation

[0017] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. Components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0018] In the description of this utility model, terms such as "upper", "lower", "left", "right", "front", and "rear" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0020] Reference Figures 1 to 7 As shown, this embodiment provides an adjustable chair suitable for standing posture, including a base 10, a support frame 1, and a backrest 40. The base 10 is used for ground support; the support frame 1 includes a fixed frame 2 and a connecting frame 3. The fixed frame 2 is fixed to the base 10 and also serves a supporting function; the connecting frame 3 is mounted on the fixed frame 2 and can be adjusted up and down relative to the fixed frame 2; the backrest 40 is mounted on the connecting frame 3 and is used to rest against the buttocks or waist of the human body; thus, by adjusting the height of the connecting frame 3, the backrest 40 can be adjusted in the height direction, such as... Figure 1 and Figure 2 The images show the backrest 40 at different heights to better accommodate users of different heights.

[0021] In this embodiment, the specific connection structure of the fixing frame 2 and the connecting frame 3 is as follows: the fixing frame 2 has two vertically arranged fixing tubes 21, which are connected by at least two (two in this embodiment) connecting tubes 22 to form a structurally stable fixing frame 2; the connecting frame 30 has two sleeves 31, which are respectively fitted into the two fixing tubes 21 of the fixing frame 2 to achieve height adjustment. Meanwhile, the fixing tubes 21 are provided with multiple limiting holes 211 along the vertical direction, and the sleeves 31 are provided with elastic pins 35. The sleeves 31 are fixed to the fixing tubes 21 by inserting the elastic pins 35 into one of the limiting holes 211 of the fixing tubes 21. That is, each of the two fixed tubes 21 is provided with multiple limiting holes 211, and each of the two sleeves 31 is provided with elastic pins 35. The two sleeves 31 are respectively fixed to the two fixed tubes 21 by elastic pins 35, and are securely fixed.

[0022] Furthermore, the two sleeves 31 of the connecting frame 3 are connected by a handle 32. The handle 32 is equipped with a control key 33, which controls the retraction of the elastic pin 35 on the sleeve 31. Specifically, the control key 33 is a push-button button. A drive rod 34 is installed inside the sleeve 31. The top end of the drive rod 34 is fixedly connected to the control key 33, and the bottom end of the drive rod 34 forms an oblique guide engagement with the elastic pin 35. Figure 6 As shown. When the control key 33 is not pressed, the control key 33 protrudes upward under the action of the bottom spring, and drives the drive rod 34 to move upward without acting on the elastic pin 35. The elastic pin 35 remains in the extended state under its own elasticity. At this time, the elastic pin 35 is inserted into the corresponding limiting hole 211 of the fixed tube 21, realizing the fixed connection between the connecting frame 3 and the fixed frame 2. When the height adjustment is required, the user holds the handle 32 and presses the control key 33. The control key 33 is pressed down and simultaneously drives the drive rod 34 to descend. The downward movement of the drive rod 34 causes the bottom to insert into the elastic pin 35, and the elastic pin 35 is driven to retract through the oblique guide structure. This causes the elastic pin 35 to exit the limiting hole 211 of the fixed tube 21, and the connecting frame 3 and the fixed frame 2 are unlocked. At this time, the connecting frame 3 can be raised and lowered. After adjusting the connecting frame 3 to a suitable height, the handle 32 can be released. The control key 33 automatically resets, and the elastic pin 35 also automatically inserts into the corresponding limiting hole 211 to achieve locking. This setup makes operation simple and quick.

[0023] Of course, in other embodiments, other fixing structures can also be used to fix the sleeve 31 and the fixing tube 21. For example, if the structure of the fixing tube 21 remains unchanged, a through hole can also be made on the sleeve 31. After the connecting bracket 3 is adjusted to the height position, the through hole of the sleeve 31 corresponds to one of the limiting holes 211 of the fixing tube 21. At this time, a pin is inserted into the corresponding limiting hole 211 and the through hole to achieve fixation.

[0024] Furthermore, the base 10 is provided with a footrest 11 for stepping on. When in use, the user's feet can step on the footrest 11 to enhance the support of the chair by using the user's weight.

[0025] The fixing frame 2 is detachably fixed to the base 10. In this embodiment, for example, the two fixing tubes 21 of the fixing frame 2 are detachably inserted into the base 10 to achieve detachable fixing. With this configuration, when storing or packing, the base 10 and the fixing frame 2 can be separated, and then the base 10 and the support frame 1 can be stacked, as shown below. Figure 8 As shown, this can reduce the floor space or packaging volume.

[0026] More preferably, the backrest 40 is rotatably mounted on the connecting frame 3, such as in the attached... Figure 3 Flip it backwards from the base Figure 4 As shown, the backrest 40 can be tilted upwards or backwards, thus adjusting the angle of the backrest 40 to better suit different leaning angles.

[0027] Specifically, a hinge frame 50 is mounted on the connecting frame 3, and the backrest 40 is fixed to the hinge frame 50. More specifically, the hinge frame 50 includes a U-shaped frame 51 and two fixing members 52. The two fixing members 52 are respectively hinged to both ends of the U-shaped frame 51, and the backrest 40 is fixed to the U-shaped frame 51 to achieve stable installation of the backrest. Both fixing members 52 are mounted on the connecting frame 3, that is, the two fixing members 52 are inserted into the top of the two sleeves 31 of the connecting frame 3 to achieve assembly. Further, in this embodiment, the fixing members 52 and the U-shaped frame 51 are hinged together by an angle adjuster, allowing the U-shaped frame 51 and the backrest 40 to rotate back and forth relative to the connecting frame 3. Specifically, the angle adjuster is a standard component in the prior art, commonly used for adjusting the angle of the chair back and armrests, and its specific structure will not be detailed here. Of course, in other embodiments, the fixing member 52 and the U-shaped frame 51 can also be connected in other ways to achieve the function of angle adjustment. For example, the hinge structure between the fixing member 52 and the U-shaped frame 51 is a damped hinge structure, that is, the U-shaped frame 51 and the backrest 40 on it are fixed by the static friction at the hinge, and the static friction must also meet the requirement that the backrest 40 remains fixed when the user leans against it; or the fixing member 52 and the U-shaped frame 51 are adjusted by a tension adjustment knob. When the angle needs to be adjusted, the tension adjustment knob is loosened to adjust the angle normally. After the adjustment is completed, the tension adjustment knob is tightened to fix the backrest 40; or a ratchet adjustment mechanism such as that disclosed in CN213921512U is used to achieve multi-level adjustment, etc.

[0028] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.

Claims

1. An adjustable chair suitable for standing posture, comprising a base, a support frame, and a backrest, characterized in that: The support frame includes a fixed frame and a connecting frame. The fixed frame is fixed to the base, and the connecting frame is assembled on the fixed frame and can be adjusted up and down relative to the fixed frame. The backrest is assembled on the connecting frame. The fixed frame has two vertically arranged fixed tubes, and the connecting frame has two sleeves. The two sleeves of the connecting frame are respectively fitted into the two fixed tubes of the fixed frame to achieve height adjustment. The fixed tube is provided with multiple limiting holes in the vertical direction, and the sleeve is provided with an elastic pin. The sleeve is fixed to the fixed tube by inserting the elastic pin into one of the limiting holes of the fixed tube. The two sleeves of the connecting frame are connected by a handle, and the handle is equipped with a control key, which is used to control the retraction of the elastic pin on the sleeve. The control key is a push button. A drive rod is provided inside the sleeve. The top end of the drive rod is fixedly connected to the control key. The bottom end of the drive rod forms an oblique guide engagement with the elastic pin. Pressing the control key causes the drive rod to descend, thereby driving the elastic pin to retract.

2. The adjustable chair suitable for sitting position according to claim 1, characterized in that: The two fixing tubes of the fixing frame are connected by at least two connecting tubes.

3. The adjustable chair for a sitting position according to claim 1, characterized in that: The fixing frame is detachably fixed to the base; the base is provided with a foot pedal for stepping on.

4. An adjustable chair for a sitting position according to any one of claims 1 to 3, characterized in that: The support is mounted on the connecting frame in a flip-up configuration.

5. The adjustable chair suitable for sitting position according to claim 4, characterized in that: The connecting frame is equipped with a hinge frame, and the support is fixed to the hinge frame.

6. The chair of claim 5, wherein: The hinge frame includes a U-shaped frame and two fixing members, which are respectively hinged to both ends of the U-shaped frame. The backrest is fixed on the U-shaped frame, and both fixing members are assembled on the connecting frame. The hinge structure between the fixing members and the U-shaped frame is a damped hinge structure; or the fixing members and the U-shaped frame are hinged by an angle adjuster.

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