Folding sliding type training chair

Abstract

A folding sliding type training chair comprises a front supporting leg, a rear supporting leg, a seat plate and a backrest, the top of the rear supporting leg is hinged to the front supporting leg, an abutting rod is arranged at the bottom of the seat plate, a guide pin is arranged at the front end of the abutting rod, a guide groove is formed in the inner side of the front supporting leg, the guide pin is arranged in the guide groove in a sliding fit mode, and when the guide pin slides upwards along the guide groove, the seat plate rotates upwards around a connecting shaft; and meanwhile, the rear supporting leg is driven to rotate forwards to be folded with the front supporting leg to finish folding. Armrest parts are arranged at the tops of the front supporting legs, the front end contours of the armrest parts are matched with the rear end contours of the armrest parts, and a plurality of training chairs can be laminated and stacked front and back. Elastic pulley devices are arranged at the bottoms of the front supporting legs and support the front supporting legs away from the ground in a normal state, and the weight of a human body overcomes elastic force to enable the front supporting legs to be supported on the bottom face during use. The folding operation is simplified, the space utilization rate is improved, the convenience of movement is considered, and the use stability is ensured.

Description

Technical Field

[0001] This utility model relates to the field of training chair technology, specifically to a folding sliding training chair. Background Technology

[0002] Folding training chairs are widely used in various settings such as education and training, conferences, and exhibitions due to their portability and high space utilization. However, existing folding training chairs still present many inconveniences in terms of stacking and transportation, which to some extent limits their efficiency and user experience.

[0003] Referring to the utility model patent disclosed in patent application number 202321273355.9, a foldable training chair, while possessing a folding function, does not fully consider the ease of folding. Its legs, seat, and backrest need to be folded separately, making the folding process cumbersome and undoubtedly increasing the burden on staff. Furthermore, its folding and unfolding mechanism requires the use of connecting ropes for restraint, resulting in a complex structure that is prone to damage, affecting the chair's durability and lifespan.

[0004] In addition, it has casters installed at the bottom of the chair legs, which can move multiple chairs at the same time when transporting them, solving the problem of transportation. However, in terms of practicality, since all four chair legs are equipped with casters, it is difficult to fix the chair, which makes the chair easy to move and rotate. This is not good for training or learning environments that require long-term focus. Students may be distracted by the movement of the chair and unable to concentrate on listening to lectures or learning. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, this utility model provides a folding sliding training chair.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] A folding sliding training chair includes symmetrically arranged front and rear support legs on both sides, and a seat and backrest installed between the front and rear support legs. The top of the rear support leg is hinged to the rear end of the upper part of the front support leg to form a support. The two sides of the backrest are fixedly connected to the top of the front support leg. The bottom of the seat plate is provided with a pressure rod on both sides. The rear end of the pressure rod is provided with a connecting shaft extending outward. The connecting shaft is rotatably mounted on the rear support leg. The front end of the pressure rod is provided with a guide pin extending outward. The inner side of the front support leg is provided with a guide groove. The guide pin slides in the guide groove. The guide groove extends arc-shaped from bottom to top. When the guide pin slides upward along the guide groove, the seat plate rotates upward around the connecting shaft, and at the same time drives the rear support leg to rotate forward until it is joined with the front support leg to complete the folding.

[0008] Furthermore, a rotating sleeve is fitted onto the guide pin, and the width of the guide groove is adapted to the diameter of the guide pin after the rotating sleeve is fitted.

[0009] Furthermore, when the guide pin is at the bottom of the guide groove, the seat plate is in a horizontal state, and the front support legs on both sides are connected by a support rod. The support rod is located below the guide groove. When the seat plate is in a horizontal state, the front end of the pressing rod presses against the support rod to form support.

[0010] Furthermore, the bottom end of the guide groove is also provided with a limiting groove. The limiting groove is connected to the guide groove in an arc shape and extends horizontally to the rear. When the guide pin slides to the bottom of the limiting groove, the front support leg and the rear support leg continue to open, so that the guide pin slides into the limiting groove to form an upper and lower limit.

[0011] In this invention, the top of the front support leg is provided with an armrest. The armrest extends diagonally forward and then backward to form a corner structure. The diagonally forward portion supports the arm, and the backward portion connects to the backrest.

[0012] Furthermore, the contours of the front and rear ends of the armrests are adapted to allow multiple training chairs to be folded and stacked together.

[0013] In this invention, pulley devices are provided at the bottom of the front support legs on both sides. The pulley devices are elastic, and the elastic force of the pulley devices is greater than the weight of the training chair. Under normal conditions, the pulley devices will support the front support legs and keep them away from the ground through the elastic force. When in use, the weight of the human body overcomes the elastic force and makes the front support legs support the bottom surface.

[0014] Furthermore, the pulley device is installed on the outside of the front support leg, and the outside of the bottom of the front support leg is provided with a mounting groove. The pulley device is fitted into the mounting groove and slides up and down. The pulley device includes a slider that is slidably fitted in the mounting groove, a rotating shaft that is fixedly connected to the slider, a roller that is rotatably mounted on the rotating shaft, and a support spring connected to the slider. The rotating shaft extends to the outside of the mounting groove, the roller is rotatably mounted on the outer end of the rotating shaft, one end of the support spring abuts against the top of the slider, and the other end abuts against the end face of the mounting groove. The support spring pushes the slider towards the bottom surface through its elastic force, thereby supporting the front support leg.

[0015] Furthermore, the pulley device also includes a limiting piece for limiting the slider in the mounting groove, the bottom end of the mounting groove extends downward to the bottom surface of the front support leg to form an opening, and the limiting piece is fixed at the side opening and the bottom opening of the mounting groove.

[0016] This utility model has the following advantages and beneficial effects:

[0017] The seat and rear support legs can be folded with a single click using guide pins and guide grooves, simplifying the operation. Meanwhile, the stable support structure and limiting groove design ensure the chair's stability during use. The folded training chair can be stacked front to back, greatly improving space utilization.

[0018] The casters at the bottom of the front support legs make the chair easier to move, and the flexible design ensures it automatically stabilizes on the ground during use. Furthermore, the folding and unfolding mechanism of this training chair does not rely on easily damaged parts, enhancing its durability and lifespan. The overall design considers both ease of movement and stability during use, adapting to the needs of different scenarios. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0020] Figure 1 This is a schematic diagram of the training chair in this embodiment;

[0021] Figure 2 This is a schematic diagram of the seat plate in this embodiment;

[0022] Figure 3 This is a schematic diagram of the front support leg in this embodiment;

[0023] Figure 4 This is a schematic diagram of the pulley device in this embodiment;

[0024] Figure 5 This is a schematic diagram of the stacked state of multiple training chairs in this embodiment. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. However, this utility model is not limited to the following embodiments.

[0026] It should be noted that if any directional indication (such as up, down, left, right, front, back, top, bottom, inside, outside, vertical, horizontal, longitudinal, counterclockwise, clockwise, circumferential, radial, axial, etc.) is involved in the embodiments of this utility model, the directional indication is only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0027] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," such descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0028] like Figures 1 to 5 As shown, this embodiment discloses a folding sliding training chair, including a front support leg 1 and a rear support leg 2 symmetrically arranged on the left and right sides, and a seat plate 3 and a backrest 4 installed between the front and rear support legs 1 and 2. The front support leg 1 is inclined to the rear, and the top of the rear support leg 2 is hinged to the rear end of the upper part of the front support leg 1 to form a support. The lower part of the front support leg 1 and the rear support leg 2 form an inverted "V" shaped support structure. The rear part of the seat plate 3 is hinged to the upper part of the rear support leg 2, and the front part of the seat plate 3 is movably fitted to the inner side of the front support leg 1. When the seat plate 3 is in a horizontal state, it forms an "A" shaped support structure with the front support leg 1 and the rear support leg 2. The two sides of the backrest 4 are fixedly connected to the top of the front support leg 1. Specifically, the bottom of the seat plate 3 is provided with a pressure rod 31 on both sides, and the rear end of the pressure rod 31 is provided with a connecting shaft 3 extending outward. 2. The front support 1 is rotatably mounted on the rear support leg 2 via the connecting shaft 32. The front end of the pressure rod 31 is provided with a guide pin 33 extending outward. The inner side of the front support leg 1 is provided with a guide groove 11. The guide pin 33 is slidably engaged in the guide groove 11. In order to make the sliding of the sliding pin and the guide groove 11 smoother, a rotating sleeve 34 is fitted on the guide pin 33. This can convert the sliding friction between the guide pin 33 and the guide groove 11 into rolling friction. It should be noted that the width of the guide groove 11 is adapted to the diameter of the guide pin 33 after the rotating sleeve 34 is fitted. In addition, the guide groove 11 extends arc-shaped from bottom to top. When the guide pin 33 slides upward along the guide groove 11, the seat plate 3 rotates upward around the connecting shaft 32, and at the same time drives the rear support leg 2 to rotate forward to join the front support leg 1, thereby completing the folding.

[0029] Furthermore, when the guide pin 33 is at the bottom of the guide groove 11, the seat plate 3 is in a horizontal state. In order to provide stable support for the seat plate 3, a support rod 12 is connected between the front support legs 1 on both sides. The support rod 12 is located below the guide groove 11. When the seat plate 3 is in a horizontal state, the front end of the pressing rod 31 presses against the support rod 12 to form support, which can ensure the support effect of the seat plate 3 and improve stability.

[0030] Furthermore, in order to keep the seat plate 3 horizontal and prevent it from being flipped up by external force, a limiting groove 110 is provided at the bottom of the guide groove 11. The limiting groove 110 is connected to the guide groove 11 in an arc shape and extends horizontally to the rear. When the guide pin 33 slides to the bottom of the limiting groove 110, the front support leg 1 and the rear support leg 2 continue to open, so that the guide pin 33 slides into the limiting groove 110 to form an upper and lower limit. This ensures that the seat plate 3 of the training chair will not be flipped up at will when it is unfolded.

[0031] In this embodiment, the top of the front support leg 1 is provided with an integrally formed armrest 13. The armrest 13 extends diagonally forward and then backward to form a corner structure. The part extending diagonally forward can be used to support the arm, and the part extending backward is used to connect the backrest 4. Furthermore, the contour of the front end of the armrest 13 is adapted to the contour of the rear end. When the training chair is folded, multiple training chairs can be stacked together, thereby reducing storage space.

[0032] Furthermore, when multiple training chairs are stacked, to facilitate transportation, pulley devices 5 are respectively provided at the bottom of the front support legs 1 on both sides. The pulley devices 5 are elastic, and the elastic force of the pulley devices 5 is greater than the weight of the training chair. Under normal conditions, the pulley devices 5 will support the front support legs 1 and keep them away from the ground through the elastic force. In this way, when the training chair is folded, it can be moved through the pulley devices 5 at the bottom. When the training chair is unfolded, the weight of the human body will overcome the elastic force and support the front support legs 1 on the bottom surface. Together with the rear support legs 2, it can be placed stably on the bottom surface and will not move easily.

[0033] Furthermore, the pulley device 5 is installed on the outside of the front support leg 1. Specifically, a mounting groove 14 is provided on the outside of the bottom of the front support leg 1. The pulley device 5 is fitted in the mounting groove 14 and slides up and down. The pulley device 5 includes a slider 51 that is slidably fitted in the mounting groove 14, a rotating shaft 52 fixedly connected to the slider 51, a roller 53 rotatably mounted on the rotating shaft 52, and a support spring 54 connected to the slider 51 to provide elastic force. The rotating shaft 52 extends outward from the mounting groove 14. The roller 53 is rotatably mounted on the outer end of the rotating shaft 52. One end of the support spring 54 abuts against the top of the slider 51, and the other end abuts against the end face of the mounting groove 14. The support spring 54 pushes the slider 51 towards the bottom surface through elastic force, thereby supporting the front support leg 1.

[0034] Furthermore, the pulley device 5 also includes a limiting piece 55 for limiting the slider 51 within the mounting groove 14. It should be noted that, for ease of processing, the bottom end of the mounting groove 14 extends downward to the bottom surface of the front support leg 1 to form an opening, and the limiting piece is fixed at the side opening and the bottom opening of the mounting groove 14.

[0035] The above description in this specification is merely an illustrative example of the present invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the specific embodiments described or adopt similar methods to replace them, as long as they do not deviate from the content of this specification or exceed the scope defined in the claims, they shall all fall within the protection scope of this invention.

Claims

1. A folding sliding training chair, comprising a front support leg (1) and a rear support leg (2) symmetrically arranged on the left and right sides, and a seat plate (3) and a backrest (4) installed between the front and rear support legs (1, 2), characterized in that: The top of the rear support leg (2) is hinged to the rear end of the front support leg (1) to form a support. The two sides of the backrest (4) are fixedly connected to the top of the front support leg (1). The bottom of the seat plate (3) is provided with a pressure rod (31) on both sides. The rear end of the pressure rod (31) is provided with a connecting shaft (32) extending outward. The connecting shaft (32) is rotatably mounted on the rear support leg (2). The front end of the pressure rod (31) is provided with a guide pin (33) extending outward. The inner side of the front support leg (1) is provided with a guide groove (11). The guide pin (33) slides in the guide groove (11). The guide groove (11) extends arc-shaped from bottom to top. When the guide pin (33) slides upward along the guide groove (11), the seat plate (3) rotates upward around the connecting shaft (32), and at the same time drives the rear support leg (2) to rotate forward until it is joined with the front support leg (1) to complete the folding.

2. A folding sliding training chair according to claim 1, characterized in that: A rotating sleeve (34) is mounted on the guide pin (33), and the width of the guide groove (11) is adapted to the diameter of the guide pin (33) after the rotating sleeve (34) is mounted.

3. A folding sliding training chair according to claim 2, characterized in that: When the guide pin (33) is at the bottom of the guide groove (11), the seat plate (3) is in a horizontal state, and the front support legs (1) on both sides are connected by a support rod (12). The support rod (12) is located below the guide groove (11). When the seat plate (3) is in a horizontal state, the front end of the pressing rod (31) presses against the support rod (12) to form support.

4. A folding sliding training chair according to claim 3, characterized in that: The bottom end of the guide groove (11) is also provided with a limiting groove (110). The limiting groove (110) is connected to the guide groove (11) in an arc shape and extends horizontally to the rear. When the guide pin (33) slides to the bottom of the limiting groove (110), the front support leg (1) and the rear support leg (2) continue to open so that the guide pin (33) slides into the limiting groove (110) to form upper and lower limits.

5. A folding sliding training chair according to claim 1, characterized in that: The front support leg (1) is provided with a handrail (13) at the top. The handrail (13) extends diagonally forward and then backward to form a corner structure. The part extending diagonally forward is used to support the arm, and the part extending backward is used to connect the backrest (4).

6. A folding sliding training chair according to claim 5, characterized in that: The front and rear contours of the armrest (13) are adapted to fit together so that multiple training chairs can be folded and stacked together.

7. A folding sliding training chair according to any one of claims 1-6, characterized in that: The bottom of the front support legs (1) on both sides is provided with pulley devices (5). The pulley devices (5) are elastic and the elastic force of the pulley devices (5) is greater than the weight of the training chair. Under normal conditions, the pulley devices (5) will support the front support legs (1) and keep them away from the ground through the elastic force. When in use, the weight of the human body overcomes the elastic force and makes the front support legs (1) support the bottom surface.

8. A folding sliding training chair according to claim 7, characterized in that: The pulley device (5) is installed on the outside of the front support leg (1). The outside of the bottom of the front support leg (1) is provided with a mounting groove (14). The pulley device (5) is mounted in the mounting groove (14) and slides up and down. The pulley device (5) includes a slider (51) that slides in the mounting groove (14), a rotating shaft (52) that is fixedly connected to the slider (51), a roller (53) that is rotatably installed on the rotating shaft (52), and a support spring (54) that is connected to the slider (51). The rotating shaft (52) extends to the outside of the mounting groove (14). The roller (53) is rotatably installed on the outer end of the rotating shaft (52). One end of the support spring (54) abuts against the top of the slider (51), and the other end abuts against the end face of the mounting groove (14). The support spring (54) pushes the slider (51) towards the bottom surface through elastic force, thereby supporting the front support leg (1).

9. A folding sliding training chair according to claim 8, characterized in that: The pulley device (5) further includes a limiting piece (55) for limiting the slider (51) in the mounting groove (14), the bottom end of the mounting groove (14) extends downward to the bottom surface of the front support (1) to form an opening, and the limiting piece is fixed at the side opening and the bottom opening of the mounting groove (14).

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