Novel office chair with protective structure

Abstract

The utility model discloses a novel office chair with a protective structure, which relates to the technical field of office chairs and comprises a seat plate frame and a backrest frame, the backrest frame is integrally bent and arranged on the upper side of the seat plate frame, a seat plate main body is mounted above the seat plate frame, a backrest main body is fixedly arranged on one side, close to a seat plate, of the backrest frame, and the backrest main body is fixedly arranged on the other side of the backrest frame. A vertical supporting leg is arranged on the lower portion of the side, away from the backrest frame, of the seat plate frame in a bent mode, a U-shaped supporting leg is fixedly arranged on the upper side of the backrest frame, a strip-shaped groove is formed in the rear side of the lower end of the U-shaped supporting leg, an auxiliary supporting leg is arranged on the inner side of the strip-shaped groove, and a rotating rod is fixedly connected into the upper side of the auxiliary supporting leg in a sleeved mode. The two ends of the rotating rod are rotationally connected with the inner walls of the corresponding strip-shaped grooves correspondingly, and limiting mechanisms for limiting the rotating angle of the auxiliary supporting leg are arranged on the outer walls of the two ends of the U-shaped supporting leg. According to the anti-toppling chair, the auxiliary supporting legs can automatically stretch out for supporting when the chair inclines backwards, and good anti-toppling protection can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to office chair technical field, concretely relates to a novel office chair with protection structure. BACKGROUND

[0002] In modern office environment, office chair is the seat that people commonly use, in order to meet different use demand, many office chairs are designed into tiltable style, and the user can recline the body to relax, however, when the office chair reclines the angle too big, the danger of toppling over is easy to occur, especially for some higher center of gravity or poor stability office chair, this toppling over risk is more prominent, and the office chair on the market mostly lacks effective anti-toppling protection structure, cannot provide reliable support when the chair reclines, which brings potential threat to the safety of the user. SUMMARY

[0003] In view of the above existing problems of the novel office chair with protection structure, the utility model is provided.

[0004] Therefore, the utility model aims at providing a novel office chair with protection structure, which solves the problems in the background art.

[0005] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] A novel office chair with protection structure, including seat plate frame and backrest frame, the backrest frame is integrally bent and arranged on the upper side of the seat plate frame, the upper side of the seat plate frame is provided with a seat plate main body, the side of the backrest frame close to the seat plate is fixedly provided with a backrest main body, the side of the seat plate frame away from the backrest frame is provided with a vertical support leg, the upper side of the backrest frame is fixedly provided with a U-shaped support leg, the lower end rear side of the U-shaped support leg is provided with a strip-shaped groove, the inner side of the strip-shaped groove is provided with a vice support leg, the upper side of the vice support leg is internally fixedly sleeved with a rotating rod, the two ends of the rotating rod are rotatably connected with the inner wall of the corresponding strip-shaped groove, the outer wall of the two ends of the U-shaped support leg is provided with a limiting mechanism for limiting the rotation angle of the vice support leg.

[0007] The limiting mechanism includes an arc-shaped plate and a stopper, one end of the rotating rod extends to the outer side of the strip-shaped groove, the stopper is fixedly arranged on the outer side one end rod wall of the rotating rod, the arc-shaped plate is abuttingly arranged on the outer wall of the U-shaped support leg, the arc-shaped plate is concentrically arranged with the rotating rod, a plurality of through holes are formed in the surface of the arc-shaped plate, threaded rods are inserted into the through holes on one end and the middle end surface of the arc-shaped plate, threaded holes are formed in the outer wall of the U-shaped support leg and the positions corresponding to the two threaded rods, and the two threaded rods are threadedly connected with the corresponding threaded holes.

[0008] Preferably, a knob is fixedly sleeved with the outer side one end of the threaded rod.

[0009] Preferably, the lower ends of both the vertical support leg and the U-shaped support leg are fixedly provided with anti-slip pads.

[0010] Preferably, both the seat body and the backrest body are made of memory foam board.

[0011] Preferably, a counterweight is provided at the lower end of each of the two auxiliary support legs.

[0012] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0013] 1. This utility model, when the user leans back and the office chair tilts backward, the secondary support leg will automatically rotate downward around the rotating rod and extend under the gravity of the counterweight. After contacting the ground, it adds an extra support point to the office chair, expands the support area, significantly improves the support stability of the office chair, effectively reduces the risk of the office chair tipping backward, and protects the personal safety of the user.

[0014] 2. This utility model allows for easy adjustment of the position of the arc plate by rotating the knob at one end of the threaded rod, thereby flexibly adjusting the maximum rotation angle of the secondary support leg. This adjustability enables the office chair to adapt to the usage habits of different users and various usage scenarios, improving the versatility and applicability of the office chair. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1 This is a structural diagram of a novel office chair with a protective structure proposed in this utility model.

[0017] Figure 2 for Figure 1 Internal structure diagram;

[0018] Figure 3 for Figure 2 A magnified schematic diagram of part A in the middle section.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Seat frame; 2. Seat body; 3. Backrest frame; 4. Backrest body; 5. Vertical support leg; 6. U-shaped support leg; 7. Rotating rod; 8. Stop block; 9. U-shaped plate; 10. Threaded rod; 11. Secondary support leg. Detailed Implementation

[0021] In order to make the technical personnel of the prior art better understand the technical scheme of the utility model, the utility model will be described in further detail below with reference to the drawings.

[0022] The utility model discloses a novel office chair with protection structure.

[0023] Referring to Figures 1-3 A novel office chair with protection structure, including seat plate frame 1 and backrest frame 3, backrest frame 3 is integrally bent and set on the upside of seat plate frame 1, the upside of seat plate frame 1 is installed with seat plate main body 2, and the side close to the seat plate of backrest frame 3 is fixedly provided with backrest main body 4, seat plate main body 2 and backrest main body 4 are all memory sponge boards, improve the comfort of use, the lower side of the side away from backrest frame 3 of seat plate frame 1 is bent and provided with vertical support leg 5, the upside of backrest frame 3 is fixedly provided with U type support leg 6, and the lower end of vertical support leg 5 and U type support leg 6 is fixedly provided with antiskid foot pad, improve the antiskid performance of office chair, the lower end rear side of U type support leg 6 is provided with strip slot, the inner side of strip slot is provided with auxiliary support leg 11, the upper side inside of auxiliary support leg 11 is fixedly sleeved with rotating rod 7, and the both ends of rotating rod 7 are rotatably connected with the inner wall of corresponding strip slot, and the lower end of two auxiliary support legs 11 is provided with counterweight, so that auxiliary support leg 1 can be stably turned out.

[0024] Referring to Figures 1-3 The outer wall of both ends of U type support leg 6 is provided with limiting mechanism for limiting the rotation angle of auxiliary support leg 11, the limiting mechanism includes arc plate 9 and stopper 8, one end of rotating rod 7 extends to the outer side of strip slot, stopper 8 is fixedly arranged on the outer side one end rod wall of rotating rod 7, arc plate 9 is abuttingly arranged on the outer wall of U type support leg 6, arc plate 9 is concentrically arranged with rotating rod 7, a plurality of through holes are formed in the surface of arc plate 9, threaded rod 10 is inserted into the through hole in the one end and the middle end surface of arc plate 9, threaded hole is formed in the outer wall of U type support leg 6 and the position corresponding to two threaded rods 10, two threaded rods 10 are screw-connected with corresponding threaded holes, and the outer side one end of threaded rod 10 is fixedly sleeved with knob, which is convenient for rotating threaded rod 10.

[0025] In this invention, when the user is sitting normally in the office chair and does not apply any backward tilting force, the office chair is supported by the vertical support leg 5 below the seat frame 1 and the U-shaped support leg 6 on the upper side of the backrest frame 3. The anti-slip pads at the lower ends of the vertical support leg 5 and the U-shaped support leg 6 are in close contact with the ground, increasing friction and ensuring the horizontal stability of the office chair and preventing slippage. At this time, the auxiliary support leg 11 is stored in the strip groove at the lower rear end of the U-shaped support leg 6 and is in an inactive state. In this configuration, the memory foam panels used in the seat body 2 and backrest body 4 conform to the user's body curves, providing a comfortable sitting experience. When the user leans back, causing the office chair to tilt backward, the two auxiliary support legs 11, equipped with counterweights at their lower ends, automatically rotate downward around the rotating rod 7 and extend into the slot under the influence of gravity. The two ends of the rotating rod 7 are rotatably connected to the inner wall of the slot, providing flexible support points for the rotation of the auxiliary support legs 11. As the auxiliary support legs 11 rotate and extend, their... The lower end gradually contacts the ground, adding an extra support point for the office chair, expanding the support area and stability, and effectively reducing the risk of the office chair tipping backward. During the rotation of the secondary support leg 11, when the secondary support leg 11 rotates to a certain angle, the stop block 8 will abut against the arc plate 9, limiting the secondary support leg 11 from continuing to rotate, thus ensuring that the secondary support leg 11 provides support within a suitable angle range, avoiding excessive rotation or improper angle affecting the support effect. At the same time, by rotating the knob at one end of the threaded rod 10, the position of the arc plate 9 can be easily adjusted, thereby adjusting the maximum rotation angle of the secondary support leg 11 to adapt to different usage needs and scenarios. When the user no longer leans back and the office chair returns to an upright position, the secondary support leg 11, because its upper end is fixedly connected to the rotating rod 7, will rotate upward around the rotating rod 7 under the action of gravity and its own structure, and retract into the strip groove at the lower end of the U-shaped support leg 6, returning to the initial retracted state, without affecting the normal use and movement of the office chair.

[0026] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A novel office chair with a protective structure, comprising a seat frame (1) and a backrest frame (3), characterized in that, The backrest frame (3) is integrally bent and set on the upper side of the seat frame (1). The seat frame (1) is equipped with a seat body (2) on the upper side. The backrest frame (3) is fixedly set with a backrest body (4) on the side close to the seat. The seat frame (1) is bent and set with a vertical support leg (5) on the lower side away from the backrest frame (3). The upper side of the backrest frame (3) is fixedly set with a U-shaped support leg (6). The lower rear side of the U-shaped support leg (6) is provided with a strip groove. The inner side of the strip groove is provided with a secondary support leg (11). The upper side of the secondary support leg (11) is fixedly sleeved with a rotating rod (7). The two ends of the rotating rod (7) are respectively rotatably connected to the inner wall of the corresponding strip groove. The outer walls of the two ends of the U-shaped support leg (6) are provided with a limiting mechanism to limit the rotation angle of the secondary support leg (11). The limiting mechanism includes an arc plate (9) and a stop block (8). One end of the rotating rod (7) extends to the outside of the strip groove. The stop block (8) is fixedly set on the outer end of the rotating rod (7). The arc plate (9) is abutted against the outer wall of the U-shaped support leg (6). The arc plate (9) and the rotating rod (7) are concentrically set. The surface of the arc plate (9) is provided with multiple through holes. Threaded rods (10) are inserted into the through holes on one end and the middle end of the arc plate (9). Threaded holes are provided on the outer wall of the U-shaped support leg (6) at positions corresponding to the two threaded rods (10). The two threaded rods (10) are threadedly connected to the corresponding threaded holes.

2. The novel office chair with a protective structure according to claim 1, characterized in that, A knob is fixedly sleeved on one side of the threaded rod (10).

3. The novel office chair with a protective structure according to claim 1, characterized in that, The lower ends of the vertical support leg (5) and the U-shaped support leg (6) are both fixedly equipped with anti-slip pads.

4. The novel office chair with a protective structure according to claim 1, characterized in that, Both the seat body (2) and the backrest body (4) are memory foam boards.

5. The novel office chair with a protective structure according to claim 1, characterized in that, The lower ends of the two auxiliary support legs (11) are each provided with a counterweight.

Images