Springback assisting seat

Abstract

The utility model provides an auxiliary rebound seat which comprises a seat framework, a seat cushion and a seat back, at least three seat supporting legs are arranged on the lower portion of the seat framework, the seat cushion is located on the upper side of the upper end face of the seat framework, and the seat back is fixedly connected to the rear side of the upper end face of the seat framework. The seat framework and the seat cushion are connected through a rebounding assembly, the rebounding assembly comprises a rotating shaft and at least one torsional spring, the front portion of the seat cushion is hinged to the front side of the upper portion of the seat framework through the rotating shaft, the rotating shaft is sleeved with the torsional spring, and one end of the torsional spring abuts against the seat cushion. The auxiliary springback seat can provide certain lifting and buffering for legs and buttocks of a user in the sitting-down or getting-up process, and helps old people with disabled legs and patients with leg diseases to independently complete actions from standing to sitting down and from sitting posture to standing.

Description

Technical Field

[0001] The utility model relates to a seat, in particular to a seat with an auxiliary resilience function. Background Art

[0002] Seats are common sitting tools and are widely used in various occasions in life. Generally, a seat is composed of a skeleton, a seat surface, a backrest and armrests. Common seats can meet the needs of most users. However, for the elderly with inconvenient legs and feet and patients with leg diseases, these people may not be able to complete the actions of standing up and sitting down, or changing from a sitting position to a standing position independently. Ordinary seats cannot provide a certain lift and buffer for the user's legs and buttocks. At present, there is an urgent need in the market for a seat that can help the elderly with inconvenient legs and feet and patients with leg diseases complete the actions of sitting down or getting up independently.

[0003] The utility model with the application number CN202223123259.4 discloses a row of seats with a buffer structure, including: a base and a plurality of seats arranged side by side on the base. Each seat includes a seat board, a backrest, a buffer mechanism and a fixed box. The backrest is rotatably connected to the end of the seat board, and a cushion is installed on the surface of the backrest. The fixed box is installed at the bottom of the seat, and two fixing holes are opened on the back of the fixed box. Fixing blocks are embedded in the fixing holes, and a sleeve is fixedly connected to the surface of the fixing block. The sleeve is in an arc structure, and a movable rod is movably connected to the upper end. In the seat of the utility model, the backrest is rotatably connected to the seat board, and a movable rod and a sleeve that can buffer are installed on the back of the backrest. After the backrest is pressed, it can be buffered. A top plate is arranged on the seat board and is buffered by a rubber pad. A buffer mechanism is arranged at the bottom of the seat board to buffer the impact from top to bottom and avoid damage to the seat caused by external impact. However, like the prior art, only the backrest of the above patent can be flipped, and it cannot overcome and solve the technical problems existing in the prior art, nor can it assist the elderly with inconvenient legs and feet and patients with leg diseases to complete the actions of sitting down or getting up independently. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide an auxiliary resilience seat with reasonable structure and convenient use. This auxiliary resilience seat solves the problem of how to apply a certain force to the legs and buttocks when the user sits down or gets up, and helps the elderly with inconvenient legs and feet and patients with leg diseases complete the actions of standing up and sitting down, or changing from a sitting position to a standing position independently.

[0005] To solve the above technical problem, the utility model provides an auxiliary resilience seat, including a seat skeleton, a seat cushion and a seat backrest. At least three seat legs are arranged at the lower part of the seat skeleton. The seat cushion is located above the upper end surface of the seat skeleton. The seat backrest is fixedly connected to the rear side of the upper end surface of the seat skeleton;

[0006] The seat frame is connected to the seat cushion through a resilient component. The resilient component includes a rotating shaft and at least one torsion spring. The front part of the seat cushion is hinged between the upper front side of the seat frame through the rotating shaft. The torsion spring is sleeved on the rotating shaft, and one end of the torsion spring abuts against the seat cushion.

[0007] As an optimization of this auxiliary resilient seat, the other end of the torsion spring of the resilient component is fixedly connected to the rotating shaft.

[0008] As an optimization of this auxiliary resilient seat, at least one positioning piece is fixedly connected to the rotating shaft. The at least one positioning piece corresponds to the at least one torsion spring of the resilient component one by one. The other end of the torsion spring is fixedly connected to the corresponding positioning piece to realize the fixation between the other end of the torsion spring and the rotating shaft.

[0009] As an optimization of this auxiliary resilient seat, this auxiliary resilient seat further includes an adjusting component. The adjusting component includes a ratchet wheel, a pawl, and a reed. The ratchet wheel is fixedly installed on the rotating shaft. The starting end of the pawl is hinged outside the ratchet wheel. The end of the pawl abuts against the gear of the ratchet wheel. The starting end of the reed is fixed, and the end of the reed abuts against the side wall of the pawl on the side away from the ratchet wheel.

[0010] As an optimization of this auxiliary resilient seat, the rotating shafts of the resilient components are respectively supported on the left and right sides of the upper part of the seat frame, and the ends of the rotating shafts extend out of the side wall of the seat frame. The ratchet wheel of the adjusting component is installed at the end of the rotating shaft extending out of the side wall of the seat frame. The starting end of the pawl is hinged on the side wall of the seat frame outside the ratchet wheel. The starting end of the reed is fixed to the side wall of the seat frame.

[0011] As an optimization of this auxiliary resilient seat, a groove fitting the seat cushion is provided on the upper end surface of the seat frame.

[0012] As an optimization of this auxiliary resilient seat, a rotating hole is opened on the seat cushion. A riding stool is provided in the rotating hole. The riding stool is hinged between the two side hole walls of the rotating hole of the seat cushion. The rotation axis of the riding stool is consistent with the trend of the rotating shaft.

[0013] As an optimization of this auxiliary resilient seat, a connecting rod is provided between the riding stool and the seat frame. One end of the connecting rod is hinged to the seat frame, and the other end of the connecting rod is hinged to the riding stool. During the flipping process of the seat cushion, the riding stool always remains relatively horizontal under the action of the connecting rod.

[0014] As an optimization of this auxiliary resilient seat, the other end of the torsion spring of the resilient component abuts against the seat frame, and the torsion spring drives the rear part of the seat cushion to have a tendency to be away from the rear part of the upper end surface of the seat frame.

[0015] After adopting such a structure, when the user sits down, the seat cushion of this auxiliary rebound seat is affected by the torsion spring of the rebound component, and applies a reverse force to the user to prevent the user from being unable to control the sitting force during the process of sitting down and avoid causing damage to the user; similarly, when getting up, the seat cushion is affected by the torsion spring of the rebound component and applies a lifting force to the user to help the user get up. And during the process of the seat cushion flipping, the riding stool always remains relatively horizontal under the action of the connecting rod.

[0016] This auxiliary rebound seat can provide a certain amount of lifting and buffering to the user's legs and buttocks during the process of sitting down or getting up, helping the elderly with inconvenient legs and the patients with leg diseases to independently complete the actions from standing to sitting and from sitting position to standing. Description of the Drawings

[0017] Figure 1 It is a cross-sectional view of the right view of the first embodiment of this auxiliary rebound seat in the initial state.

[0018] Figure 2 is Figure 1 The enlarged view of part A of

[0019] Figure 3 It is the right view of the first embodiment of this auxiliary rebound seat in the sitting position state.

[0020] Figure 4 It is a cross-sectional view of the schematic diagram of the adjustment component in the first embodiment of this auxiliary rebound seat.

[0021] Figure 5 It is a cross-sectional view of the right view of the first embodiment of this auxiliary rebound seat in the sitting position state.

[0022] Figure 6 It is the right view of the third embodiment of this auxiliary rebound seat in the sitting position state.

[0023] Reference numerals in the drawings: seat frame - 1; seat leg - 11; groove - 12; seat cushion - 2; rotation hole - 21; riding stool - 22; connecting rod - 3; torsion spring - 41; rotating shaft - 42; positioning piece - 42a; housing - 51; ratchet - 52; stop claw - 53; adjusting shaft - 56; handle - 56a; reed - 54; knob - 55; seat back - 6; armrest - 7. Detailed Description of the Invention

[0024] To make the above objects, features, and advantages of the present utility model more apparent and understandable, the following will describe in detail the specific embodiments of the present utility model with reference to the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present utility model. However, the present utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0025] As used herein, the terms "vertical", "horizontal", "left", "right", and similar expressions are for illustrative purposes only and do not represent the only implementation.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which this utility model belongs. The terms used herein in the specification of the present utility model are for the purpose of describing specific embodiments only and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0027] Embodiment 1

[0028] Please refer to Figures 1 to 5 。

[0029] This auxiliary rebound seat includes a seat frame 1, a seat cushion 2, a seat backrest 6, two armrests 7 on both sides, and an adjustment component.

[0030] Four seat legs 11 are provided at the lower part of the seat frame 1, and the four seat legs 11 are distributed in a rectangle. The seat cushion 2 is located above the upper end surface of the seat frame 1, the seat backrest 6 is fixed at the rear side of the upper end surface of the seat frame 1, a groove 12 fitting the seat cushion 2 is provided on the upper end surface of the seat frame 1, and the two armrests 7 are fixed on the left and right sides of the upper end surface of the seat frame 1.

[0031] A rotation hole 21 is formed in the seat cushion 2, and a riding stool 22 is provided in the rotation hole 21. The riding stool 22 is hinged between the two side hole walls of the rotation hole 21 of the seat cushion 2, and the rotation axis of the riding stool 22 is consistent with the direction of the rotating shaft 42.

[0032] A connecting rod 3 is provided between the riding stool 22 and the seat frame 1. One end of the connecting rod 3 is hinged to the seat frame 1, and the other end of the connecting rod 3 is hinged to the riding stool 22. During the flipping process of the seat cushion 2, the riding stool 22 always remains relatively horizontal under the action of the connecting rod 3.

[0033] The seat frame 1 and the seat cushion 2 are connected by a resilient component. The resilient component includes a rotating shaft 42 and two torsion springs 41. The front part of the seat cushion 2 is hinged between the upper front side of the seat frame 1 through the rotating shaft 42. The rotating shaft 42 is respectively supported on the left and right sides of the upper part of the seat frame 1, and the end of the rotating shaft 42 extends out of the side wall of the seat frame 1.

[0034] Two positioning pieces 42a are welded on the side wall of the rotating shaft 42. The two positioning pieces 42a correspond to the two torsion springs 41 of the resilient component one by one. The torsion spring 41 is sleeved on the rotating shaft 42. One end of the torsion spring 41 abuts against the seat cushion 2, and the other end of the torsion spring 41 is welded and fixed to the corresponding positioning piece 42a, realizing the fixation between the other end of the torsion spring 41 and the rotating shaft 42.

[0035] The adjusting component includes a housing 51, a ratchet 52, a detent pawl 53 and a reed 54. The ratchet 52 is installed at the end of the rotating shaft 42 extending out of the side wall of the seat frame 1. The starting end of the detent pawl 53 is hinged on the side wall of the seat frame 1 outside the ratchet 52 through an adjusting shaft 56. The end of the detent pawl 53 abuts against the gear of the ratchet 52. The starting end of the reed 54 is fixed to the side wall of the seat frame 1, and the end of the reed 54 abuts against the side wall of the detent pawl 53 on the side far from the ratchet 52. The housing 51 covers the outside of the ratchet 52, and the housing 51 is welded and fixed to the side wall of the seat frame 1. The end of the rotating shaft 42 also extends out of the outside of the housing 51. A knob 55 is fixedly installed at the end of the rotating shaft 42 extending out of the outside of the housing 51. One end of the adjusting shaft 56 is supported on the housing 51, and the other end of the adjusting shaft 56 is supported on the side wall of the seat frame 1. The end of the adjusting shaft 56 also extends out of the outside of the housing 51. A handle 56a is installed at the end of the adjusting shaft 56 extending out of the outside of the housing 51.

[0036] In the initial state, the seat cushion 2 is acted on by the torsion spring 41 of the resilient component, and the rear part of the seat cushion 2 is turned upward along the rotating shaft 42, and the riding stool 22 is kept relatively horizontal under the action of the connecting rod 3.

[0037] When the user sits on this auxiliary resilient seat from the upright state, the user's buttocks first touch the riding stool 22, and then the user gradually sits down until fully seated, until the seat cushion 2 returns to the groove 12 on the upper end surface of the seat frame 1; during this process, the seat cushion 2 is acted on by the torsion spring 41 of the resilient component, and a reverse acting force is applied to the user to prevent the user from being unable to control the sitting-down force during the sitting-down process and avoid causing damage to the user. During the flipping process of the seat cushion 2, the riding stool 22 is kept relatively horizontal under the action of the connecting rod 3.

[0038] On the contrary, when the user gets up from this auxiliary resilient seat, the seat cushion 2 is acted on by the torsion spring 41 of the resilient component, and a lifting force is applied to the user to help the user get up. During the flipping process of the seat cushion 2, the riding stool 22 is kept relatively horizontal under the action of the connecting rod 3.

[0039] By rotating the knob 55 of the adjustment assembly, the rotation of the rotating shaft 42 relative to the seat cushion 2 can be realized. The rotation of the rotating shaft 42 drives the position change of both ends of the torsion spring 41, and the magnitude of the force exerted by the torsion spring 41 on the seat cushion 2 can be adjusted. For example, the force on the seat cushion 2 during the standing-up process is greater than that during the sitting-down process.

[0040] Embodiment 2

[0041] The difference between this embodiment and Embodiment 1 is only that: in this embodiment, there is no adjustment assembly, and one end of the torsion spring of the elastic return assembly abuts against the seat cushion, and the other end of the torsion spring abuts against the seat frame. The torsion spring drives the rear part of the seat cushion to have a tendency to move away from the rear part of the upper end face of the seat frame.

[0042] Lacking the adjustment assembly, this embodiment can only provide a certain degree of lifting and buffering for the user's legs and buttocks during both the sitting-down and standing-up processes, helping the elderly with inconvenient legs and patients with leg diseases to independently complete the actions from standing to sitting and from sitting position to standing, but cannot have the function of adjusting the strength of the seat cushion.

[0043] Embodiment 3

[0044] Please refer to Figure 6 。

[0045] The difference between this embodiment and Embodiment 1 is only that: a swing arm 57 is fixedly installed at the end of the rotating shaft 42 extending outside the housing 51. The swing arm 57 extends outward. Using the swing arm 57 instead of the knob can facilitate the adjustment of the position change of both ends of the torsion spring by the elderly or patients, so as to adjust the magnitude of the force exerted by the torsion spring on the seat cushion 2.

[0046] The above are only three implementation manners of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several variations and improvements can be made, and these should also be regarded as belonging to the protection scope of the present utility model.

Claims

1. An auxiliary rebound seat, comprising a seat frame (1), a seat cushion (2) and a seat backrest (6). At least three seat legs (11) are provided at the lower part of the seat frame (1). The seat cushion (2) is located on the upper side of the upper end surface of the seat frame (1), and the seat backrest (6) is fixedly connected to the rear side of the upper end surface of the seat frame (1). It is characterized in that: The seat frame (1) and the seat cushion (2) are connected by a rebound assembly. The rebound assembly includes a rotating shaft (42) and at least one torsion spring (41). The front part of the seat cushion (2) is hinged between the upper front side of the seat frame (1) through the rotating shaft (42). The torsion spring (41) is sleeved on the rotating shaft (42), and one end of the torsion spring (41) abuts against the seat cushion (2).

2. The auxiliary rebound seat according to claim 1, wherein: The other end of the torsion spring (41) of the rebound assembly is fixedly connected to the rotating shaft (42).

3. The auxiliary rebound seat according to claim 2, wherein: At least one positioning piece (42a) is fixedly connected to the rotating shaft (42). At least one positioning piece (42a) corresponds to at least one torsion spring (41) of the rebound assembly one by one. The other end of the torsion spring (41) is fixedly connected to the corresponding positioning piece (42a) to realize the fixation between the other end of the torsion spring (41) and the rotating shaft (42).

4. The auxiliary rebound seat according to claim 2, wherein: It further includes an adjusting assembly. The adjusting assembly includes a ratchet wheel (52), a pawl (53) and a reed (54). The ratchet wheel (52) is fixedly installed on the rotating shaft (42). The starting end of the pawl (53) is hinged on the outside of the ratchet wheel (52), and the end of the pawl (53) abuts against the gear of the ratchet wheel (52). The starting end of the reed (54) is fixed, and the end of the reed (54) abuts against the side wall of the pawl (53) on the side away from the ratchet wheel (52).

5. The auxiliary rebound seat according to claim 2, wherein: The rotating shafts (42) of the rebound assembly are respectively supported on the left and right sides of the upper part of the seat frame (1), and the ends of the rotating shafts (42) extend out of the side wall of the seat frame (1). The ratchet wheel (52) of the adjusting assembly is installed at the end of the rotating shaft (42) extending out of the side wall of the seat frame (1). The starting end of the pawl (53) is hinged on the side wall of the seat frame (1) outside the ratchet wheel (52), and the starting end of the reed (54) is fixed to the side wall of the seat frame (1).

6. The auxiliary rebound seat according to claim 1, wherein: A groove (12) matching the seat cushion (2) is provided on the upper end surface of the seat frame (1).

7. The auxiliary rebound seat according to claim 1, wherein: A rotating hole (21) is formed in the seat cushion (2). A riding stool (22) is arranged in the rotating hole (21). The riding stool (22) is hinged between the two side hole walls of the rotating hole (21) of the seat cushion (2). The rotation axis of the riding stool (22) is consistent with the direction of the rotating shaft (42).

8. The auxiliary rebound seat according to claim 7, wherein: A connecting rod (3) is provided between the riding stool (22) and the seat frame (1). One end of the connecting rod (3) is hinged to the seat frame (1), and the other end of the connecting rod (3) is hinged to the riding stool (22). During the flipping process of the seat cushion (2), the riding stool (22) always remains relatively horizontal under the action of the connecting rod (3).

9. The auxiliary rebound seat according to claim 1, wherein: The other end of the torsion spring (41) of the rebound assembly abuts against the seat frame (1), and the torsion spring (41) drives the rear part of the seat cushion (2) to have a tendency to move away from the rear part of the upper end face of the seat frame (1).

10. The auxiliary rebound seat according to claim 5, wherein: A swing arm (57) is fixedly installed at the end of the rotating shaft (42) extending outside the seat frame (1), and the swing arm (57) extends in the radial direction of the rotating shaft (42).

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