CN116350434A - Auxiliary rising seat - Google Patents

Abstract

The invention relates to an auxiliary sit-up seat which comprises a cushion frame, wherein one side of the cushion frame is provided with a bottom frame which is rotationally connected with the side edge of the cushion frame, the cushion frame is connected with the bottom frame through a rotating shaft, a first electric push rod which is used for driving the rotating shaft to rotate is arranged on the bottom frame, an arc-shaped traction block which rotates along with the rotation of the rotating shaft and can drive the cushion frame to synchronously rotate is arranged on the rotating shaft, and one side, opposite to the position of the bottom frame, of the cushion frame is provided with a backrest frame which is connected with the side edge of the cushion frame and can be turned over. The invention has the characteristics that the overturning angle of the cushion frame is not influenced by the length and the volume of the first electric push rod, the conversion efficiency of the driving force of the first electric push rod is increased, the input cost of a driving piece is reduced, the first electric push rod does not directly bear the acting force brought by the cushion frame, the pressure born by the first electric push rod is effectively reduced, the auxiliary lifting function of a patient can be realized, and the like.

Description

booster seat

technical field

The invention relates to an auxiliary stand-up seat, which belongs to the technical field of seat backs.

Background technique

For the patient with handicap, need to lie in bed for a long time or chair seat on the seat, when alone, without the help of others, the individual has greater difficulty to get up from the seat, even has certain danger.

In the Chinese patent application whose publication number is CN216603322U, a kind of multi-functional old people's getting up auxiliary chair for rehabilitation department is disclosed. Two connecting rods are symmetrically fixed at the end position, and two connecting angles are fixed on the upper side of the two brackets at one end position, and the upper side of the two brackets is connected with the seat board through the connecting angle rotation, so One side of the seat board is rotatably connected with a seat back.

The stand-up auxiliary chair adopts two adjustment electric cylinders to directly connect and drive the backrest and the seat board, and the conversion efficiency is extremely low. When the seat board is turned up to the maximum angle, if the seat board is perpendicular to the horizontal line, the length of the electric adjustment cylinder required is relatively large, the space occupation is relatively large, and the cost is high, and the gravity on the cushion frame is all controlled by the electric adjustment cylinder. The cylinder bears as a whole, making the adjustment electric cylinder easier to damage.

Contents of the invention

The object of the present invention is to provide an auxiliary stand-up seat, which solves the problems in the prior art that the inversion angle of the seat board is limited by the volume of the driving part, the driving part has high investment cost and is more easily damaged.

The above-mentioned technical purpose of the present invention is mainly solved by the following technical solutions: an auxiliary rising seat, comprising a cushion frame, one side of the cushion frame is provided with a bottom frame that is rotatably connected to the side of the cushion frame, and the cushion frame It is connected with the bottom frame through a rotating shaft. The bottom frame is provided with a first electric push rod for driving the rotating shaft to rotate. The rotating shaft is provided with a rotating shaft that rotates with the rotation of the rotating shaft and can drive the cushion frame to rotate synchronously. The arc-shaped traction block, the side of the cushion frame opposite to the position of the bottom frame is provided with a backrest frame that is connected to the side of the cushion frame and can be turned over; the first electric push rod is connected to the rotating shaft and the arc-shaped traction block transmission The first electric push rod only needs to drive the rotating shaft to rotate, and then the cushion frame can be turned over through the arc-shaped traction block. The first electric push rod is not directly connected to the cushion frame, and the flip of the cushion frame The angle is not affected by the length of the first electric push rod, which increases the conversion efficiency of the driving force of the first electric push rod, reduces the input cost of the driving parts, and the first electric push rod does not directly bear the action brought by the cushion frame The force effectively reduces the pressure to be borne by the first electric push rod, and the reversible cooperation between the reversible backrest frame and the cushion frame can support the patient and assist the patient to get up.

Preferably, the arc-shaped traction block is provided with an arc-shaped groove penetrating along the length direction of the rotating shaft, and the side wall of the cushion frame is provided with a The guide wheel; the above-mentioned arc groove and the guide wheel are arranged together, and the guide wheel can move in the arc groove when the cushion frame is turned over, so that the cushion frame is guided by the arc groove and driven by the turning of the arc traction block. , to realize the overturning of the cushion frame, thereby realizing the driving of the overturning of the cushion frame in a small space, and maintaining a sufficient overturning angle of the cushion frame to ensure practical use.

Preferably, the arc track of the arc groove accounts for a quarter to one third of the circular track where the arc slot is located; the arc track of the arc slot accounts for 1/4 of the circular track where the arc slot The setting of one quarter to one third can prevent the arc track of the arc groove from being too long and cause the cushion frame to shake when the arc traction block is turned over to the limit position, and avoid the arc track of the arc groove from being too long. It is short and reduces the reversible angle of the cushion frame, which ensures the stable reversing of the cushion frame. At the same time, it limits the reversible angle of the arc-shaped traction block, and then limits the rotation angle of the rotating shaft.

Preferably, the fixed end of the first electric push rod is rotatably connected to the base frame, the output end of the first electric push rod is connected to the rotating shaft through transmission, and the end of the first electric push rod connected to the rotating shaft is always high At one end of the first electric push rod connected to the chassis, the length direction of the first electric push rod is perpendicular to the axial direction of the rotation shaft; the end of the first electric push rod connected to the rotation shaft is always higher than the first electric push rod The setting of one end of the rod connected to the bottom frame makes the first electric push rod tilt upward on the bottom frame, so that the first electric push rod can always drive the rotating shaft to rotate, ensuring continuous driving of the first electric push rod.

As a preference, the middle section of the rotating shaft is provided with a U-shaped seat connected to the bottom frame corresponding to the position where the first electric push rod is located, and the top of the U-shaped seat is provided with a slot; the slot of the U-shaped seat It can make way for the output rod of the first electric push rod, avoid the interference of the rotating shaft on the work of the first electric push rod, and ensure the stable displacement of the first electric push rod.

As a preference, both sides of the U-shaped seat are provided with connecting rods parallel to each other and fixedly connected to the rotating shaft, and a rotatable connecting rod passing through the output end of the first electric push rod is provided between the ends of the two connecting rods. Coupling shaft; the setting of the above-mentioned connecting rod and connecting shaft enables the output end of the first electric push rod to be connected by the coupling shaft and the connecting rod to drive the rotating shaft to turn over, and convert the linear motion of the electric push rod into the rotation of the rotating shaft. Play the role of transmission.

Preferably, side baffles are respectively provided on both sides of the back frame, and the side baffles are connected to the side wall of the cushion frame through a rotating shaft. There is a baffle extending to the outer end of the side baffle, and the baffle is located on one side of the rotating shaft; the above-mentioned rotating shaft is used to support the turning of the backrest around the rotating shaft, and the setting of the baffle can limit the turning angle of the backrest, avoiding the backrest Rack overturned.

Preferably, a fixed column is provided between the two side baffles, and the fixed column is located on the side of the rotating shaft opposite to the position of the bar, and a second electric push rod is provided on the cushion frame. The output end of the two electric push rods is connected to the fixed column in rotation, and the fixed end of the second electric push rod is connected to the cushion frame in rotation; the above-mentioned second electric push rod is connected to the fixed column, and the back frame can be pulled by the fixed column to make the backrest The frame is turned over, and the backrest frame is flush with the cushion frame immediately, and the second electric push rod can pull the backrest frame for a second time to turn over again.

Therefore, the tilting angle of the cushion frame in the present invention is not affected by the length and volume of the first electric push rod, which increases the conversion efficiency of the driving force of the first electric push rod, reduces the input cost of the driving parts, and the first electric push rod It does not directly bear the force brought by the cushion frame, which effectively reduces the pressure to be borne by the first electric push rod, and at the same time can realize the features of assisting the patient to get up.

Description of drawings

Fig. 1 is a three-dimensional structure diagram of the present invention;

Fig. 2 is a partial structural schematic diagram of Fig. 1;

FIG. 3 is a structural schematic diagram of another viewing angle of FIG. 2 .

Detailed ways

The technical solutions of the present invention will be further specifically described below through the embodiments and in conjunction with the accompanying drawings.

As shown in Fig. 1-2, an auxiliary rising seat includes a cushion frame 1, one side of the cushion frame 1 is provided with a bottom frame 2 which is rotatably connected to the side of the cushion frame 1, and the seat between the cushion frame 1 and the bottom frame 2 Connected by the rotating shaft 21, the bottom frame 2 is provided with a first electric push rod 22 for driving the rotating shaft 21 to rotate, and the rotating shaft 21 is provided with an arc that rotates with the rotation of the rotating shaft 21 and can drive the cushion frame 1 to rotate synchronously. Shaped traction block 23, on the cushion frame 1 opposite to the position of the bottom frame 2 is provided with a backrest frame 3 that is connected to the side of the cushion frame 1 and can be turned over, and the arc-shaped traction block 23 is provided with a length along the rotation axis 21 The arc groove 231 that runs through the direction, the side wall of the cushion frame 1 is provided with the guide wheel 11 that is located in the arc groove 231 and can move along the arc trajectory of the arc groove 231, and the arc trajectory of the arc groove 231 occupies an arc. 1/4 to 1/3 of the circular locus where the shaped groove 231 is located.

When driving the cushion frame to turn over, the first electric push rod starts, and the output end of the first electric push rod stretches out or retracts, so that the rotating shaft rotates, and the rotation of the rotating shaft drives the arc-shaped traction block to rotate, and the rotation of the arc-shaped traction block The guide wheel moves in the arc-shaped groove, the guide wheel turns over synchronously with the cushion frame, the backrest moves along with the flipping of the cushion frame, and the backrest itself can be turned over to adjust the angle of the backrest and cushion frame to adjust the patient’s Help get up.

The above-mentioned back frame can be turned over to keep on the same horizontal line as the cushion frame, and when both the cushion frame and the backrest frame are turned over to the horizontal state, it is convenient for the patient to lie flat. When flipped upside down, it is easy for the patient to get up and even supports the patient to stand.

As shown in Figure 2, the fixed end of the first electric push rod 22 is connected to the bottom frame 2 in rotation, the output end of the first electric push rod 22 is connected to the rotating shaft 21 in transmission, and the first electric push rod 22 is connected to the rotating shaft 21. One end is always higher than the end where the first electric push rod 22 is connected to the chassis 2, the length direction of the first electric push rod 22 is perpendicular to the axial direction of the rotation shaft 21, and the middle section of the rotation shaft 21 corresponds to where the first electric push rod 22 is located. A U-shaped seat 24 connected to the bottom frame 2 is provided at the position of the U-shaped seat 24. A slot 241 is provided on the top of the U-shaped seat 24. Both sides of the U-shaped seat 24 are provided with connecting rods that are parallel to each other and fixedly connected with the rotating shaft 21. 25. A connecting shaft 26 that is rotatable and passes through the output end of the first electric push rod 22 is provided between the ends of the two connecting rods 25; when the first electric push rod is started, the output rod of the first electric push rod is located at U In the slot of the type seat, the fixed section of the first electric push rod is movably connected to the bottom frame. When the first electric push rod is started, it will swing as a whole with the expansion and contraction of the output rod. , drive the connecting rod to swing through the connecting shaft, when the connecting rod swings, it drives the rotating shaft to rotate, and the rotating shaft drives the arc-shaped traction block to rotate.

As shown in Figure 2-3, side baffles 31 are respectively provided on both sides of the backrest frame 3, and the side baffles 31 are connected with the side wall of the cushion frame 1 through a rotating shaft 32, and the side wall of the cushion frame 1 faces the first electric pusher. One side of the rod 22 is provided with a retaining bar 12 extending to the outer end of the side baffle 31, the retaining bar 12 is located on one side of the rotating shaft 32, and a fixed column 33 is arranged between the two side baffles 31, and the fixed column 33 is located on the rotating shaft 32 On the side opposite to the position of the stop bar 12, the cushion frame 1 is provided with a second electric push rod 13, the output end of the second electric push rod 13 is connected with the fixed post 33 in rotation, and the fixed end of the second electric push rod 13 is connected with the Cushion frame 1 is rotatably connected; when the backrest is turned over, the second electric push rod is activated, which will push or pull the fixed column, so that the fixed column drives the backrest to rotate around the axis of rotation, thereby realizing the overturn of the backrest. The second electric pushrod Displaced with the rotating shaft, the output end of the second electric push rod is located on one side of the rotating shaft, the rotation axis of the backrest is located on one side of the output end of the second electric push rod, and the fixing column is located on one side of the rotating shaft.

Claims (8)

1. An auxiliary seat, characterized in that: it includes a cushion frame (1), and one side of the cushion frame (1) is provided with a bottom frame (2) that is rotatably connected to the side of the cushion frame (1). The cushion frame (1) and the bottom frame (2) are connected by a rotating shaft (21), and the bottom frame (2) is provided with a first electric push rod (22) for driving the rotating shaft (21) to rotate, The rotating shaft (21) is provided with an arc-shaped traction block (23) that rotates with the rotation of the rotating shaft (21) and can drive the cushion frame (1) to rotate synchronously. (2) On the opposite side of the position, there is a reversible backrest frame (3) connected to the side of the cushion frame (1). 2. The auxiliary stand-up seat according to claim 1, characterized in that: the arc-shaped traction block (23) is provided with an arc-shaped groove (231) penetrating along the length direction of the rotating shaft (21), the The side wall of the cushion frame (1) is provided with a guide wheel (11) which is located in the arc groove (231) and can move along the arc track of the arc groove (231). 3. The auxiliary rising seat according to claim 2, characterized in that: the arc track of the arc slot (231) accounts for one quarter to one third of the circular track where the arc slot (231) is located one. 4. The assisted rising seat according to claim 1, characterized in that: the fixed end of the first electric push rod (22) is rotatably connected to the bottom frame (2), and the first electric push rod (22) The output end of the first electric push rod (22) is connected to the rotating shaft (21) in transmission, and the end connected to the rotating shaft (21) is always higher than the end connected to the bottom frame (2) of the first electric push rod (22). At one end, the length direction of the first electric push rod (22) is perpendicular to the axis direction of the rotation shaft (21). 5. The auxiliary rising seat according to claim 1, characterized in that: the middle section of the rotating shaft (21) is connected to the bottom frame (2) at the position corresponding to the first electric push rod (22). The U-shaped seat (24), the top of the U-shaped seat (24) is provided with a slot (241). 6. The auxiliary rising seat according to claim 5, characterized in that: both sides of the U-shaped seat (24) are provided with connecting rods (25) parallel to each other and fixedly connected to the rotating shaft (21), A connecting shaft (26) which is rotatable and passes through the output end of the first electric push rod (22) is arranged between the ends of the two connecting rods (25). 7. The auxiliary rising seat according to claim 1, characterized in that: the two sides of the backrest frame (3) are respectively provided with side baffles (31), and the side baffles (31) are connected with the cushion frame ( 1) The side walls are connected by a rotating shaft (32), and the side wall of the cushion frame (1) facing the first electric push rod (22) is provided with a bar extending to the outer end of the side baffle (31) ( 12), the bar (12) is located on one side of the rotating shaft (32). 8. The auxiliary stand-up seat according to claim 7, characterized in that: a fixed column (33) is provided between the two side baffles (31), and the fixed column (33) is located on the rotating shaft (32) On the side opposite to the position of the retaining bar (12), the cushion frame (1) is provided with a second electric push rod (13), and the output end of the second electric push rod (13) is connected to the fixed column ( 33) Rotational connection, the fixed end of the second electric push rod (13) is rotationally connected to the cushion frame (1).

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