Supine stool easy to adjust

Abstract

The utility model relates to an easy-to-adjust supine stool which is characterized in that the easy-to-adjust supine stool comprises a connecting beam, a connecting plate is fixed on the connecting beam, one end of the connecting plate extends outwards to serve as a connecting end, a cushion and a back lying plate are arranged above the connecting beam, one end of the cushion is fixed at the connecting end, and the other end of the cushion extends outwards horizontally. One end of the back-lying plate is rotatably connected to the connecting end, a rotatable lead screw is arranged below the back-lying plate, the periphery of the lead screw is sleeved with a connecting base capable of being in threaded fit with the lead screw, a connecting arm is arranged between the connecting base and the back-lying plate, one end of the connecting arm is rotatably connected to the connecting base, and the other end of the connecting arm is rotatably connected to the back-lying plate; the connecting arm moves in the direction of the lead screw through the connecting base so as to drive the back-lying plate to rotate with the connecting position of the back-lying plate and the connecting end as the rotating center, and the angle of the back-lying plate can be adjusted. The back lying plate has the advantages that the angle adjusting range of the back lying plate can be widened so as to adapt to differences of body structures of more people.

Description

Technical Field

[0001] This utility model relates to the field of fitness equipment technology, specifically to an easily adjustable supine bench. Background Technology

[0002] A dumbbell bench, also known as a dumbbell bench, is a type of bench that allows for training using bodyweight or added weights. The backrest angle can be adjusted to target different muscle groups. For example, when the backrest is parallel to the floor (flat), bench presses (weighted training) focus on overall chest development; when the backrest is at a 30-degree angle to the floor (incline), bench presses focus on the upper chest.

[0003] For example, Chinese patent document CN219721815U discloses a dumbbell bench, including a first support frame, a first base fixedly connected to one end of the first support frame, a second base fixedly connected to the other end of the first support frame, a second support frame fixedly connected to the top surface of the first support frame, a seat provided above the second support frame, a sit-up assist device provided on one side of the seat, a first backrest provided on the other side of the seat, a second backrest provided on the side of the first backrest away from the seat, a sliding sleeve fixedly connected to the bottom surface of the first backrest, a sliding rod slidably connected inside the opening of the sliding sleeve, a fixing frame fixedly connected to the bottom surface of the second backrest, and both the sliding rod and the fixing frame are rotatably connected to the first support frame.

[0004] In the above technical solution, the angle of the backrest board is adjusted mainly by the arc-shaped adjustment ruler set on the corresponding support frame. The backrest board can be fixed by inserting a pin into the adjustment hole through the preset adjustment hole on the arc-shaped adjustment ruler. In this way, the angle of the backrest board can be adjusted by inserting different adjustment holes.

[0005] However, in actual use, it was found that the minimum angle adjustment of the backrest board mainly depends on the angle difference between adjacent adjustment holes, which limits the range of backrest board angle adjustment and makes it unable to adapt to the body structure of different people. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an easily adjustable supine bench that can increase the range of backrest angle adjustment to accommodate the differences in body structure among more people.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an easily adjustable supine bench, comprising a connecting beam, a connecting plate fixed on the connecting beam, one end of the connecting plate extending outward as a connecting end, a seat cushion and a backrest board provided above the connecting beam, one end of the seat cushion fixed to the connecting end and the other end extending horizontally outward, one end of the backrest board rotatably connected to the connecting end, a rotatable lead screw provided below the backrest board, a connecting seat fitted around the outer periphery of the lead screw to form a threaded engagement with the lead screw, a connecting arm provided between the connecting seat and the backrest board, one end of the connecting arm rotatably connected to the connecting seat and the other end rotatably connected to the backrest board, the connecting arm moving along the direction of the lead screw through the connecting seat to drive the backrest board to rotate around the connection point with the connecting end as the rotation center, thereby adjusting the angle of the backrest board.

[0008] The present invention is further configured such that: a protruding connecting flange is fixed on the connecting beam, and the two ends of the lead screw are rotatably connected to the connecting flanges on both sides.

[0009] The present invention is further configured such that: one end of the lead screw extends outward as an extension end, and a handwheel is fixed to the extension end.

[0010] The present invention is further configured such that the connecting plates are symmetrically arranged on both sides of the connecting beam.

[0011] The present invention is further configured such that the connecting arms are symmetrically arranged on both sides of the connecting seat.

[0012] The present invention is further configured such that: the two ends of the connecting beam are fixed with support feet, and the two ends of the support feet extend to both sides respectively.

[0013] The present invention is further configured such that: a guide rail is fixed on the connecting beam, the guide rail is parallel to the lead screw, a slider is fixed at the bottom of the connecting seat, the slider is coupled to the guide rail, and a sliding fit is formed between the two.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] Because a connecting arm is installed between the backrest and the connecting beam, and one end of the connecting arm is connected to a connecting seat that can move along the lead screw, when the angle of the backrest needs to be adjusted, the connecting seat, which is fitted around the lead screw and has a threaded connection with it, can move along the lead screw. This allows the backrest to rotate around the connection point with the connecting end as the center of rotation. Therefore, the lead screw drives the connecting seat to move along the lead screw with higher precision, enabling linear angle adjustment of the backrest and thus increasing the range of backrest angle adjustment to accommodate the differences in body structure among more people. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model (I);

[0017] Figure 2 This is a schematic diagram of the overall structure of the present utility model (II);

[0018] Figure 3 This is a partially enlarged structural diagram of part A of this utility model. Detailed Implementation

[0019] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, 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 the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] like Figures 1 to 3 As shown, this utility model discloses an easily adjustable reclining stool, including a connecting beam 1. Vertically upward connecting plates 2 are symmetrically fixed on both sides of the connecting beam 1, with the upper ends of the connecting plates 2 extending outwards to form connecting ends. A seat cushion 3 and a backrest board 4 are provided above the connecting beam 1. One end of the seat cushion 3 is fixed to the connecting end by bolts, and the other end extends horizontally outwards to form a flat surface for the user to sit or lie on. One end of the backrest board 4 is hinged to the connecting end by a pin, allowing the backrest board 4 to be adjusted in tilt around the hinge point.

[0022] A lead screw 5 is located below the backrest board 4. Both ends of the lead screw 5 are rotatably connected to two connecting flanges 8 fixed on the connecting beam 1 via bearings. A connecting seat 6, which forms a threaded engagement with the lead screw 5, is fitted around the outer periphery of the lead screw 5. Connecting arms 7 are symmetrically arranged on both sides of the connecting seat 6. One end of the connecting arm 7 is rotatably connected to the connecting seat 6 via a pin, and the other end is rotatably connected to the outer side of the backrest board 4 via another pin. When the elevation angle of the backrest board 4 needs to be adjusted, rotating the lead screw 5 allows the connecting seat 6, fitted around the lead screw 5 and forming a threaded engagement with it, to move along the lead screw 5. This allows the backrest board 4 to rotate around its connection point via the connecting arm 7. Therefore, the drive via the lead screw 5 enables the connecting seat 6 to move with higher precision, allowing for linear angle adjustment of the backrest board 4 and increasing the range of angle adjustment to accommodate greater differences in body structure among different groups of people.

[0023] Furthermore, to facilitate the rotation of the lead screw 5, one end of the lead screw 5 is extended to the outside of the connecting flange 8 to form an extension end. A handwheel 9 is fixed on the extension end, allowing the user to drive the lead screw 5 by rotating the handwheel 9, thus improving the convenience of driving the lead screw 5. In addition, support feet 10 are welded to both ends of the bottom of the connecting beam 1, with the two legs of the support feet 10 extending to the left and right respectively to enhance the overall stability of the supine bench.

[0024] In addition, to ensure the stability of the connecting seat 6 during movement, a guide rail 11 parallel to the lead screw 5 is fixedly installed on the upper surface of the connecting beam 1. A slider 12 matching the guide rail 11 is welded to the bottom of the connecting seat 6. The slider 12 is coupled in the groove of the guide rail 11 and can slide along it. Through the cooperation of the guide rail 11 and the slider 12, the rotational freedom of the connecting seat 6 is restricted, ensuring that it moves smoothly only along the axis of the lead screw 5 under the drive of the lead screw 5, thereby avoiding deviation or jamming during the adjustment process.

[0025] Among them, the connecting plates 2 are symmetrically arranged on both sides of the connecting beam 1 and the connecting arms 7 are symmetrically arranged on both sides of the connecting seat 6, which can improve the overall load-bearing capacity of the supine bench.

[0026] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

Claims

1. An adjustable prone bench characterized in that, The utility model provides a kind of chair, including connecting beam, connecting plate is fixed on the connecting beam, connecting plate one end extends outward as connecting end, the upper of connecting beam is equipped with cushion and back board, one end of cushion is fixed to connecting end, one end extends horizontally outward, the lower of back board is equipped with rotatable lead screw, the outer periphery of lead screw is equipped with the connecting seat that can be threadedly engaged with lead screw, connecting arm is equipped between the connecting seat and back board, one end of connecting arm is rotatably connected to connecting seat, one end is rotatably connected to back board, connecting arm moves along the direction of lead screw by connecting seat, to drive back board to rotate with the connecting end connection as the center of rotation, so that back board is adjusted in angle.

2. An adjustable prone bench as claimed in claim 1, characterized in that The connecting beam is fixed with protruding connecting flanges, and the two ends of the lead screw are rotatably connected to the connecting flanges on both sides.

3. A reclining bench as claimed in claim 1 or 2, characterised in that, One end of the lead screw extends outward as an extension end, and the extension end is fixed with a hand wheel.

4. An adjustable prone bench as claimed in claim 1, wherein, The connecting plates are symmetrically arranged on both sides of the connecting beam.

5. An adjustable prone bench as claimed in claim 1, wherein, The connecting arms are symmetrically arranged on both sides of the connecting seat.

6. An adjustable prone bench as claimed in claim 1, wherein, The connecting beam is fixed with support feet at both ends, and the support feet extend to both sides at both ends, respectively.

7. An adjustable prone table as claimed in claim 2, wherein, The connecting beam is fixed with a guide rail, which is parallel to the lead screw. The bottom of the connecting seat is fixed with a sliding block, which is coupled to the guide rail and can form a sliding fit therebetween.

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