CN116983502A - Foldable transfusion chair - Google Patents

Abstract

The invention relates to the technical field of medical equipment, in particular to a foldable transfusion chair. The invention provides a safer foldable transfusion chair. The invention provides a foldable transfusion chair, which comprises: the device comprises a base and a fixing piece, wherein the right side of the base is connected with the fixing piece; the inner side of the fixing piece is connected with the telescopic infusion support in a sliding manner; the backrest is rotatably connected between the left side and the right side of the rear part of the base; the torsion springs are wound between the left side and the right side of the backrest and the base, and are wound on the backrest. According to the foldable infusion chair, the first unidirectional screw rod drives the friction block to move downwards through the engagement of the first gear and the second gear and is supported on the ground through the friction block, so that the backrest can be locked, the backrest is more stable and does not rotate, and the lifting device can be more stable and does not loosen through the extrusion fit between the clamping rod and the limiting frame and the lifting device, so that the foldable infusion chair is more stable and safer.

Description

Foldable transfusion chair

Technical Field

The invention relates to the technical field of medical equipment, in particular to a foldable transfusion chair.

Background

When people get ill, transfusion is needed, and the transfusion bottle is hung at a high place, so that the transfusion chair is a chair which can hang the transfusion bottle and is more suitable for patients to sit.

The patent with the publication number of CN206508335U discloses an infusion chair capable of being adjusted at will, which comprises an infusion chair body, wherein an infusion support is arranged on the infusion chair body, a lifting mechanism is arranged in the middle of the infusion chair body, and the outer end of the lifting mechanism is connected with a seat plate; one end of the infusion chair body is hinged with a back plate, and a torsion spring is also arranged at the joint of the back plate and the infusion chair body.

When the infusion chair is used, people can adjust the height of the seat board through the lifting mechanism, the angle of the back board can be adjusted through the torsion spring, the leg boards can be driven through the driving mechanism, feet of people can be placed conveniently, the patient can feel more comfortable, after the infusion chair is used for a long time, equipment aging, torsion of the torsion spring and the like can occur, the seat board can be suddenly loosened and slid down later, or the back board is too easy to rotate to stably support the condition of people, so that people are difficult to stably infuse, and the infusion chair has certain danger, and therefore, the safer foldable infusion chair is developed.

Disclosure of Invention

In order to overcome the defects that the prior infusion chair has the possibility of sudden loosening of a seat board and difficult supporting of people by a back board and is dangerous, the technical problem of the invention is that: provides a safer foldable transfusion chair.

The technical implementation scheme of the invention is as follows: a foldable transfusion chair, comprising:

the device comprises a base and a fixing piece, wherein the right side of the base is connected with the fixing piece;

the inner side of the fixing piece is connected with the telescopic infusion support in a sliding manner;

the backrest is rotatably connected between the left side and the right side of the rear part of the base;

torsion springs are wound between the left side and the right side of the backrest and the base, and are wound on the backrest;

the upper side of the base is uniformly connected with six lifting devices;

a cushion is connected between the upper sides of the lifting devices;

foot pads are rotatably connected between the left side and the right side of the front part of the base;

the front side of the lower part of the base is connected with an electric push rod, and the front side of the telescopic rod of the electric push rod is connected with a foot pad;

the back side of the base is provided with a supporting mechanism for supporting the backrest;

the base is provided with a clamping mechanism for clamping the limiting lifting device.

Further, the supporting mechanism includes:

the rotating frame is rotatably connected between the left side and the right side of the back of the backrest;

the inner side of the middle part of the rotating frame is rotationally connected with a nut;

the upper side of the nut is connected with a first gear;

the motor is connected to the left side of the rotating frame;

the lower side of the motor output shaft is connected with a second gear which is meshed with the first gear;

the first unidirectional screw rod is connected with the nut through internal threads;

the friction block is rotationally connected with the lower side of the first unidirectional screw;

the right side of the rotating frame is connected with a first guide rod in a sliding mode, the upper side of the first guide rod is connected with a first unidirectional screw in a rotating mode, and the first guide rod is matched with the backrest in an extrusion mode.

Further, the clamping mechanism comprises:

the right side of the base is rotatably connected with the first rotating piece;

the left side and the right side of the upper part of the base are symmetrically connected with the second slide rail in front-back mode;

the two second sliding rails at the right part are rotationally connected with the first bidirectional screw;

the first rotating rod is connected between one sides of the first bidirectional screw rods, which are close to each other;

the first belt is wound between the front side of the first rotating rod and the front side of the first rotating piece through a guide wheel;

the clamping rods are connected with the front side and the rear side of the first bidirectional screw in a threaded mode, the left side and the right side of the clamping rods are connected with similar second sliding rails in a sliding mode, and the clamping rods are matched with similar lifting devices in an extrusion mode;

the clamping rods are connected with limiting frames in a sliding mode, the limiting frames are in extrusion fit with similar lifting devices, and the limiting frames are in extrusion fit with the base.

Further, the utility model also comprises a locking mechanism for locking the backrest, and the locking mechanism comprises:

the lower side of the first guide rod is connected with a second guide rod;

the sliding frame is connected with the second guide rod;

the left side and the right side of the rear lower part of the base are connected with first sliding rails which are connected with the sliding frame in a sliding manner;

the left side and the right side of the rear part of the base are both connected with the first sliding part in a sliding way, one side, close to each other, of the first sliding part is provided with an inclined surface, and the inclined surfaces on the first sliding part are in extrusion fit with the sliding frame;

the friction pieces are connected to one sides, far away from each other, of the front parts of the first sliding pieces, and are matched with the backrest in a clamping manner, and the friction pieces are matched with the base in an extrusion manner;

and the first springs are wound on the similar first sliding parts.

Further, the anti-slip mechanism for preventing the telescopic infusion support from loosening and sliding down is also included, and the anti-slip mechanism comprises:

the right side of the upper part of the fixing piece is connected with a third sliding rail;

the second bidirectional screw rod is rotationally connected in the third sliding rail;

the anti-skid piece is connected with the front side and the rear side of the second bidirectional screw rod in a threaded manner, and is connected with the third sliding rail in a sliding manner, and is matched with the telescopic infusion support in an extrusion manner;

the front side of the second bidirectional screw rod is connected with a second rotating rod which is rotationally connected with a third sliding rail;

and a second belt is wound between the front side of the second rotating rod and the front side of the first rotating piece through a guide wheel.

Further, the utility model also comprises a display mechanism for providing a platform for placing articles, and the display mechanism comprises:

the left side of the rear upper part of the base is rotatably connected with the second rotating piece;

the second unidirectional screw rod is rotationally connected between the front side and the rear side of the right part of the second rotating piece;

the sliding plate is connected with the second unidirectional screw rod in a threaded manner and is connected with the second rotating piece in a sliding manner;

the left side of the upper rear part of the base is connected with a fixing frame which is matched with the second rotating piece in an extrusion mode.

Further, still including being used for letting the knocking mechanism of second rotating member vibrations, knocking mechanism includes:

the left side of the upper part of the base is connected with a fourth sliding rail;

the second sliding piece is connected with the second sliding piece in a sliding way in the fourth sliding rail, and the second sliding piece is matched with the second rotating piece in an extrusion way;

the second spring is connected between the rear side of the second sliding piece and the inner rear side of the fourth sliding rail;

an extrusion part is connected to the front lower side of the second sliding piece;

the fixed block, the front side of second rotating member is connected with two fixed blocks, and fixed block and extrusion piece all extrusion fit.

Further, the sides of the left parts of the anti-skid parts, which are close to each other, are rough surfaces.

The invention has the following advantages: 1. according to the foldable infusion chair, the first unidirectional screw rod drives the friction block to move downwards through the engagement of the first gear and the second gear and is supported on the ground through the friction block, so that the backrest can be locked, the backrest is more stable and does not rotate, and the lifting device can be more stable and does not loosen through the extrusion fit between the clamping rod and the limiting frame and the lifting device, so that the foldable infusion chair is more stable and safer.

2. According to the foldable infusion chair, the friction force can be increased when the backrest rotates through the extrusion fit between the friction piece and the base and the clamping fit between the friction piece and the backrest, so that the backrest is more stable, and the foldable infusion chair is more stable.

3. According to the foldable infusion chair, the second rotating rod drives the second bidirectional screw rod to rotate through the second belt, so that the anti-sliding piece moves to one side close to each other, the limiting telescopic infusion support can be clamped through the anti-sliding piece, the follow-up loose sliding is prevented, and the foldable infusion chair is stable and safe.

4. The invention is convenient for people to place articles through the second rotating piece, so that people can eat during transfusion.

5. According to the invention, through the extrusion fit between the fixed block and the extrusion piece and under the action of the second spring, the second sliding piece can strike the second rotating piece, so that impurities on the second rotating piece can be conveniently shaken off.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic view of a partial perspective structure of the present invention.

Fig. 3 is a schematic perspective view of a supporting mechanism according to the present invention.

Fig. 4 is a schematic perspective view of a supporting mechanism part of the present invention.

Fig. 5 is a schematic view showing a first perspective structure of the locking mechanism of the present invention.

Fig. 6 is a schematic view showing a second perspective structure of the locking mechanism of the present invention.

Fig. 7 is a schematic perspective view of a clamping mechanism according to the present invention.

Fig. 8 is a schematic view of a part of a clamping mechanism of the present invention in a perspective view.

Fig. 9 is a schematic perspective view of an anti-slip mechanism according to the present invention.

Fig. 10 is a schematic view of a first perspective structure of the display mechanism of the present invention.

Fig. 11 is a schematic view of a second perspective of the display mechanism of the present invention.

Fig. 12 is a schematic perspective view of a knocking mechanism according to the present invention.

Meaning of reference numerals in the drawings: 1: base, 2: fixing piece, 21: telescopic infusion support, 3: backrest, 31: torsion spring, 4: cushion, 41: lifting device, 42: foot pad, 43: electric putter, 5: support mechanism, 51: swivel mount, 52: nut, 53: first gear, 54: second gear, 55: motor, 56: first unidirectional screw, 57: first guide bar, 58: friction block, 6: locking mechanism, 61: second guide bar, 62: carriage, 63: first slide rail, 64: first slider, 65: friction member, 66: first spring, 7: clamping mechanism, 71: first rotating member, 72: first belt, 73: first rotary lever, 74: first bi-directional screw, 75: second slide rail, 76: clamping rod, 77: limit frame, 8: anti-slip mechanism, 81: third slide rail, 82: antiskid piece, 83: second bidirectional screw, 84: second rotary lever, 85: second belt, 9: a display mechanism, 91: second rotating member, 92: slide plate, 93: second unidirectional screw, 94: fixing frame, 10: knocking mechanism, 101: fourth slide rail, 102: second spring, 103: second slider, 104: extrusion, 105: and a fixed block.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Example 1

The utility model provides a can roll over infusion chair of exhibition, as shown in fig. 1 and 2, including base 1, mounting 2, flexible infusion support 21, back 3, torsional spring 31, cushion 4, lifting device 41, callus on the sole 42, electric putter 43, supporting mechanism 5 and clamping mechanism 7, the right side of base 1 is connected with mounting 2, the inboard slidingtype of mounting 2 is connected with flexible infusion support 21, the rotary type is connected with back 3 between the left and right sides at base 1 rear portion, all around being equipped with torsional spring 31 between the left and right sides of back 3 and the base 1, torsional spring 31 all twines on back 3, the upside of base 1 evenly is connected with six lifting device 41, be connected with cushion 4 between the upside of lifting device 41, the front side of base 1 is connected with electric putter 43 between the left and right sides at the front portion of base, electric putter 43 telescopic link's front side is connected with callus on the sole 42, the rear side of base 1 is equipped with supporting mechanism 5, supporting mechanism 5 is used for spacing back 3, prevent that back 3 from rotating at will, be equipped with clamping mechanism 7 on base 1 and be used for preventing that lifting device 41 from falling loose to make progress, lifting device 41.

As shown in fig. 1, 3 and 4, the supporting mechanism 5 comprises a rotating frame 51, a nut 52, a first gear 53, a second gear 54, a motor 55, a first unidirectional screw 56, a first guide rod 57 and a friction block 58, wherein the rotating frame 51 is rotatably connected between the left side and the right side of the rear part of the backrest 3, the inner side in the middle of the rotating frame 51 is rotatably connected with the nut 52, the upper side of the nut 52 is connected with the first gear 53, the left side of the rotating frame 51 is connected with the motor 55, the lower side of an output shaft of the motor 55 is connected with the second gear 54, the second gear 54 is meshed with the first gear 53, the nut 52 is internally threaded with the first unidirectional screw 56, the lower side of the first unidirectional screw 56 is rotatably connected with the friction block 58, the right side of the rotating frame 51 is slidably connected with the first guide rod 57, the upper side of the first guide rod 57 is rotatably connected with the first unidirectional screw 56, the first guide rod 57 is in extrusion fit with the backrest 3, the nut 52 is meshed with the second gear 54 through the motor 55, the nut 52 is driven to rotate, the first unidirectional screw 58 is driven to move downwards to the friction block 58 to lock the backrest 3, and the friction block can be locked on the ground surface by the friction block 51.

As shown in fig. 1, fig. 7 and fig. 8, the clamping mechanism 7 comprises a first rotating member 71, a first belt 72, a first rotating rod 73, a first bidirectional screw 74, a second sliding rail 75, clamping rods 76 and a limiting frame 77, the first rotating member 71 is rotationally connected to the right side of the base 1, the second sliding rails 75 are symmetrically connected to the left side and the right side of the upper portion of the base 1, the first bidirectional screw 74 is rotationally connected to the right side of the base 1, a first rotating rod 73 is connected between one sides of the first bidirectional screw 74, which are close to each other, the front side of the first rotating rod 73 and the front side of the first rotating member 71 are coiled with the first belt 72 through guide wheels, the front side and the rear side of the first bidirectional screw 74 are all in threaded connection with clamping rods 76 for clamping and limiting the front side and the rear side of the lower portion of the lifting device 41, the clamping rods 76 are all in sliding fit with the similar second sliding rails 75, the clamping rods 76 are all in sliding fit with the similar lifting device 41, the front side of the upper portion of the clamping device 41 is in sliding fit with the limiting frame 77, and the limiting frame 77 is matched with the limiting frame 1 in a sliding mode.

In the initial state, the backrest 3 is in a vertical state under the action of the torsion spring 31, when the foldable infusion chair is used, firstly, people can adjust the height of the cushion 4 according to the self requirement, when the people need the cushion 4 to be higher, the lifting device 41 can be started, the included angle between the front side and the rear side of the lifting device 41 is larger, namely, the height of the lifting device 41 is higher, so that the cushion 4 can move upwards, when the people need the cushion 4 to be lower, the lifting device 41 can be controlled to enable the included angle between the front side and the rear side of the lifting device 41 to be smaller, so that the height of the lifting device 41 is relatively lower, the cushion 4 can move downwards for reset, after the height of the cushion 4 is adjusted, the lifting device 41 is closed, then people can rotate the first rotating piece 71, the first belt 72 rotates along with the lifting device, the first rotating rod 73 rotates under the action of the first belt 72, the first two-way screw 74 is driven to rotate along with the first two-way screw 74, so that two adjacent clamping rods 76 can move towards one side close to each other, the corresponding limiting frames 77 are driven to move along with the clamping rods, until the clamping rods 76 can not move continuously under the action of the adjacent lifting devices 41, because the height of the lifting devices 41 is limited, namely the included angles of the front side and the rear side of the lifting devices 41 can be changed in a certain interval, the limiting frames 77 can be always positioned between the front side and the rear side of the upper parts of the adjacent lifting devices 41, when the limiting frames 77 contact the adjacent lifting devices 41, under the extrusion of the adjacent lifting devices 41, the limiting frames 77 can gradually move upwards, so that the clamping rods 76 can clamp and limit the front side and the rear side of the lower parts of the adjacent lifting devices 41, the clamping rods 77 clamp and limit the front side and the rear side of the upper parts of the adjacent lifting devices 41, so that the included angle between the front side and the rear side of the lifting device 41 can not be reduced any more, the lifting device 41 can keep the adjusted angle, the lifting device 41 can be more stable, the cushion 4 can be prevented from sliding down due to loosening of the subsequent lifting device 41, the foldable transfusion chair is more stable and safe, then people can sit on the cushion 4 and lean against the backrest 3 backwards, namely, people can press the backrest 3 backwards, the backrest 3 rotates backwards, the torsion spring 31 is properly twisted, the torsion force of the torsion spring 31 is relatively large, the backrest 3 can be tightly attached to the back of people through the torsion spring 31, when the backrest 3 rotates, the rotating frame 51 rotates along with the backrest, the rotating frame 51 rotates properly under the action of gravity of the people, the rotating frame 51 can keep a state parallel to the ground, the rotation of the rotating frame 51 drives the nut 52, the motor 55 and the first guide rod 57 to rotate, so that the first gear 53, the second gear 54, the first unidirectional screw 56 and the friction block 58 all rotate, namely, the first unidirectional screw 56 is in a state of being parallel to the ground, at the moment, people can start the motor 55, so that the output shaft of the motor 55 rotates to drive the second gear 54 to rotate, under the action of the second gear 54, the first gear 53 also rotates to drive the nut 52 to rotate, so that the first unidirectional screw 56 also rotates, the first unidirectional screw 56 moves downwards to drive the first guide rod 57 and the friction block 58 to also move downwards, and when the rotation angle of the backrest 3 is overlarge, the first unidirectional screw 56 is extruded to the first guide rod 57, so that the first guide rod 57 presents a certain inclination angle, and the rotating frame 51, the first unidirectional screw 56, the nut 52, the motor 55 and the friction block 58 are also inclined at a certain angle, so when the motor 55 is started, the first unidirectional screw 56 drives the first guide rod 57 to move leftwards and downwards, the first guide rod 57 is gradually far away from the backrest 3, the rotating frame 51 is gradually reversely rotated and reset, the first unidirectional screw 56, the first guide rod 57, the nut 52, the motor 55 and the friction block 58 are gradually reversely rotated and reset, when the first guide rod 57 is no longer contacted with the backrest 3, the first unidirectional screw 56 is rotated to be vertical to the ground, the first unidirectional screw 56 drives the first guide rod 57 and the friction block 58 to move downwards until the friction block 58 is contacted with the ground, the friction block 58 can not continuously move downwards under the blocking of the ground, the motor 55 is turned off, so that the friction block 58 can be supported on the ground, so that the friction block 58 can not move or rotate, the first unidirectional screw rod 56, the nut 52 and the rotating frame 51 can not move or rotate any more, the rotating frame 51 can be limited and locked, the backrest 3 can not rotate any more, the backrest 3 can keep the current state, the backrest 3 is more stable, the situation that the gravity center of people is unstable due to sudden rotation of the backrest 3 can be avoided, the foldable infusion chair is also beneficial to being safer and more stable, then people can start the electric push rod 43, the telescopic rod of the electric push rod 43 extends forwards, so that the foot pad 42 gradually rotates clockwise, people can put feet conveniently, then the electric push rod 43 is closed again, at the moment, people can carry out infusion, hang the infusion bottle on the telescopic infusion frame 21, and simultaneously people can move up and down to adjust the telescopic infusion frame 21, after the transfusion is finished, the motor 55 and the electric push rod 43 can be started, the output shaft of the motor 55 reversely rotates to drive the second gear 54 to reversely rotate, the first gear 53 drives the nut 52 reversely rotate under the action of the second gear 54, the first unidirectional screw 56 reversely rotates, the first unidirectional screw 56 moves upwards to reset, the first guide rod 57 and the friction block 58 are driven to move upwards to reset, the telescopic rod of the electric push rod 43 is retracted backwards to reset, the foot pad 42 reversely rotates to reset, then the motor 55 and the electric push rod 43 are closed again, the first rotary piece 71 reversely rotates to drive the first belt 72 reversely rotate, under the action of the first belt 72, the first rotating rod 73 also rotates reversely, so that the first bidirectional screw 74 can be driven to rotate reversely, the two clamping rods 76 which are close to each other drive the corresponding limiting frames 77 to move and reset to the side which is far away from each other, the limiting frames 77 are gradually far away from the lifting device 41, the limiting frames 77 move downwards and reset under the action of gravity of the limiting frames 77 until the limiting frames 77 cannot move downwards any more under the blocking of the base 1, then people leave the cushion 4 and the backrest 3, the backrest 3 rotates reversely and resets under the action of the torsion spring 31, and the rotating frame 51, the nut 52, the first gear 53, the second gear 54, the motor 55, the first unidirectional screw 56, the first guide rod 57 and the friction block 58 rotate reversely and reset.

Example 2

On the basis of embodiment 1, as shown in fig. 1, 5 and 6, the back support device further comprises a locking mechanism 6, the locking mechanism 6 comprises a second guide rod 61, a sliding frame 62, a first sliding rail 63, a first sliding piece 64, a friction piece 65 and a first spring 66, the lower side of the first guide rod 57 is connected with the second guide rod 61, the second guide rod 61 is connected with the sliding frame 62, the left side and the right side of the rear lower part of the base 1 are respectively connected with the first sliding rail 63, the first sliding rail 63 is respectively connected with the sliding frame 62 in a sliding mode, the left side and the right side of the rear part of the base 1 are respectively connected with the first sliding piece 64 in a sliding mode, one side, close to each other, of the first sliding piece 64 is respectively provided with an inclined surface, the inclined surface on the first sliding piece 64 is respectively in extrusion fit with the sliding frame 62, one side, far away from each other, of the front part of the first sliding piece 64 is respectively connected with the friction piece 65, the friction piece 65 is respectively in clamping fit with the backrest 3, the friction piece 65 is respectively in extrusion fit with the base 1, the friction piece 65 is used for increasing the friction force generated when the backrest 3 rotates, the backrest 3 is difficult to rotate, the backrest 3 is enabled to rotate, the backrest 3 is more stably and the first sliding piece 64 is wound around the first sliding piece 64, and the first spring 64, and the first sliding piece is respectively.

In the initial state, the first sliding part 64 is in a state of being pressed by the sliding frame 62, the first spring 66 is in a compressed state, when the first guide rod 57 moves downwards, the second guide rod 61 is driven to move downwards, so that the sliding frame 62 moves downwards, the sliding frame 62 is gradually far away from the first sliding part 64, the first sliding part 64 moves towards one side close to each other under the action of the corresponding first spring 66, the corresponding friction part 65 is driven to move along with the sliding frame until the friction part 65 cannot move continuously under the action of the base 1, at the moment, the friction part 65 is sleeved on the left side and the right side of the backrest 3 respectively, in this way, the friction part 65 can be propped against the base 1, and the left side and the right side of the backrest 3 can be clamped, so that the friction force during rotation of the backrest 3 can be increased through the friction part 65, the backrest 3 is more difficult to rotate, namely the backrest 3 can be more stable, the foldable transfusion chair is facilitated, when the first guide rod 57 moves upwards, the second guide rod 61 drives the sliding frame 62 to move upwards, the first sliding part 64 is driven to move along with the reset, and the sliding frame 64 is reset to move along with the reset, and the reset part 64 is driven to move along with the reset part, and the reset part is driven to move along with the sliding frame 64.

As shown in fig. 1 and 9, the infusion support further comprises an anti-slip mechanism 8, the anti-slip mechanism 8 comprises a third sliding rail 81, an anti-slip piece 82, a second bidirectional screw 83, a second rotating rod 84 and a second belt 85, the right side of the upper portion of the fixing piece 2 is connected with the third sliding rail 81, the second bidirectional screw 83 is rotatably connected in the third sliding rail 81, the anti-slip piece 82 is in threaded connection with the front side and the rear side of the second bidirectional screw 83, the anti-slip piece 82 is slidably connected with the third sliding rail 81, the anti-slip piece 82 is in press fit with the telescopic infusion support 21, the sides of the left portions of the anti-slip piece 82, which are close to each other, are rough surfaces, the front side of the second bidirectional screw 83 is connected with a second rotating rod 84, the second rotating rod 84 is rotatably connected with the third sliding rail 81, the second belt 85 is coiled between the front side of the second rotating rod 84 and the front side of the first rotating piece 71 through a guide wheel, the second bidirectional screw 83 is rotated through the second belt 85, the anti-slip piece 82 is close to and the telescopic infusion support 21 is clamped tightly, and the telescopic support 21 is stable.

After the telescopic infusion support 21 is used for a long time, the follow-up situation of loosening also possibly appears, thereby the telescopic infusion support 21 drives the infusion bottle to slide down suddenly and fall down when people infuse possibly, a certain danger exists, after the height of the cushion 4 that people adjusted, people can adjust the height of the telescopic infusion support 21 according to own demand later, after the height of the telescopic infusion support 21 is adjusted, people can rotate first rotating member 71, so that clamping rod 76 and limiting frame 77 carry out clamping limit to lifting device 41, when first rotating member 71 rotates, second belt 85 can be driven to rotate along with it, second rotating rod 84 also rotates along with the rotation of second belt 85, drive second bidirectional screw 83 to rotate along with it, so that anti-slip member 82 moves to one side close to each other, so that anti-slip member 82 can clamp limiting infusion support 21, prevent the sudden loosening of telescopic infusion support 21, and because one side close to each other of anti-slip member 82 left part is a rough surface, therefore, can increase anti-slip member 82 and infusion support 21 can also drive second belt 85 to rotate along with it, and the second rotating rod 82 can drive the second rotating rod to rotate along with it, so that the second rotating rod is more stable, and the second rotating rod is driven to rotate along with the second belt 85, so that the anti-slip member 82 moves towards one side close to each other, so that the anti-slip member 82 can clamp the side is more flexible infusion support 21.

As shown in fig. 1, 10 and 11, the display mechanism 9 further comprises a display mechanism 9, the display mechanism 9 comprises a second rotating member 91, a sliding plate 92, a second unidirectional screw 93 and a fixing frame 94, the left side of the rear upper portion of the base 1 is rotationally connected with the second rotating member 91 for facilitating the placement of articles by people, the second unidirectional screw 93 is rotationally connected between the front side and the rear side of the right portion of the second rotating member 91, the sliding plate 92 is connected with the second rotating member 91 in a threaded manner on the second unidirectional screw 93, the sliding plate 92 is connected with the second rotating member 91 in a sliding manner, the left side of the rear upper portion of the base 1 is connected with the fixing frame 94, and the fixing frame 94 is in press fit with the second rotating member 91.

Under the initial condition, second rotating member 91, sliding plate 92 and second unidirectional screw 93 shelter from in the upper left side of cushion 4 front side, so can influence people and accomplish on cushion 4, therefore, before people sit on cushion 4, people can anticlockwise rotate second rotating member 91, drive sliding plate 92 and second unidirectional screw 93 and rotate thereupon, until the rear side of second rotating member 91 can't continue to rotate under the stop of mount 94, second rotating member 91 has rotated 180 simultaneously, sliding plate 92 and second unidirectional screw 93 have also rotated 180 along with it, at this moment second rotating member 91, sliding plate 92 and second unidirectional screw 93 just no longer shelter from the upper left side of cushion 4 front side, be convenient for people to sit on cushion 4 after people sit on, and when people need place article or meal, people can reverse rotate second rotating member 91 reset thereupon, make sliding plate 92 and second unidirectional screw 93 all reverse rotation reset thereupon, until the rear side of second rotating member 91 again rotates under the stop of mount 94, at this moment second rotating member 92 and second unidirectional screw 93 continue to rotate along with it, at this moment, second rotating member 92 and second unidirectional screw 93 can's rotation, can make people more rotate through the sliding plate 92 more than need to rotate the sliding plate 92, can rotate the second unidirectional screw 93, when people need to place article to reset, can more than need to rotate the second unidirectional screw 93, can place article to rotate through the second rotating plate 92, can more than need to rotate the second unidirectional screw 93, can rotate the second rotating plate 92, can rotate more than can rotate, and more than can rotate the article, and can rotate through the second unidirectional screw 93.

As shown in fig. 1 and 12, the knocking mechanism 10 further comprises a knocking mechanism 10, the knocking mechanism 10 comprises a fourth sliding rail 101, a second spring 102, a second sliding member 103, an extrusion piece 104 and a fixing block 105, the left side of the upper portion of the base 1 is connected with the fourth sliding rail 101, the second sliding member 103 is connected in the fourth sliding rail 101 in a sliding manner, the second sliding member 103 is in extrusion fit with the second rotating member 91, the second spring 102 is connected between the rear side of the second sliding member 103 and the inner rear side of the fourth sliding rail 101, the extrusion piece 104 is connected to the front lower side of the second sliding member 103, the front side of the second rotating member 91 is connected with two fixing blocks 105, the fixing blocks 105 are in extrusion fit with the extrusion piece 104, and the second sliding member 103 is made to impact the second rotating member 91 through the extrusion fit between the fixing blocks 105, so that the second rotating member 91 can vibrate, and impurities on the second sliding member are convenient to shake down.

When people place objects on the second rotating member 91, a small amount of impurities may fall on the second rotating member 91, when the second rotating member 91 drives the sliding plate 92 and the second unidirectional screw 93 to rotate, the fixed block 105 is driven to rotate along with the sliding plate 92 and the second unidirectional screw 93, when the fixed block 105 rotates to contact the pressing piece 104, the pressing piece 104 is pressed backwards, the second sliding member 103 is driven to move backwards, the second spring 102 is compressed, when the fixed block 105 is not contacted with the pressing piece 104, the second sliding member 103 moves forwards under the action of the second spring 102 to reset, the second sliding member 103 impacts the second rotating member 91, the second rotating member 91 vibrates, when the next fixed block 105 rotates to contact the pressing piece 104, the steps are repeated, so that the second rotating member 91 vibrates again, and impurities remained on the second rotating member 91 are convenient to fall down, and accordingly the second rotating member 91 can be cleaned.

The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (8)

1. A foldable infusion chair, which is characterized by comprising:

the device comprises a base (1) and a fixing piece (2), wherein the fixing piece (2) is connected to the right side of the base (1);

the inner side of the fixing piece (2) is connected with the telescopic infusion support (21) in a sliding way;

the backrest (3) is rotatably connected between the left side and the right side of the rear part of the base (1);

the torsion springs (31) are wound between the left side and the right side of the backrest (3) and the base (1), and the torsion springs (31) are wound on the backrest (3);

the lifting device (41) is uniformly connected with six lifting devices (41) on the upper side of the base (1);

a cushion (4) is connected between the upper sides of the lifting devices (41);

a foot pad (42) is rotatably connected between the left side and the right side of the front part of the base (1), and the foot pad (42) is rotatably connected between the left side and the right side of the front part of the base;

the front side of the lower part of the base (1) is connected with the electric push rod (43), and the front side of the telescopic rod of the electric push rod (43) is connected with the foot pad (42);

the support mechanism (5) is arranged at the rear side of the base (1) and is used for supporting the support mechanism (5) of the backrest (3); the clamping mechanism (7) is arranged on the base (1), and the clamping mechanism (7) is used for clamping the limiting lifting device (41).

2. A collapsible infusion chair according to claim 1, wherein the support means (5) comprises:

a rotating frame (51), wherein the rotating frame (51) is rotatably connected between the left side and the right side of the back of the backrest (3);

the inner side of the middle part of the rotating frame (51) is rotatably connected with the nut (52);

a first gear (53), wherein the upper side of the nut (52) is connected with the first gear (53);

a motor (55), the left side of the rotating frame (51) is connected with the motor (55);

the lower side of the output shaft of the motor (55) is connected with a second gear (54), and the second gear (54) is meshed with the first gear (53);

the first unidirectional screw (56), the first unidirectional screw (56) is connected with the internal thread of the nut (52);

the friction block (58) is rotationally connected with the lower side of the first unidirectional screw (56);

the right side of the rotating frame (51) is connected with a first guide rod (57) in a sliding mode, the upper side of the first guide rod (57) is rotatably connected with a first one-way screw rod (56), and the first guide rod (57) is in extrusion fit with the backrest (3).

3. A collapsible infusion chair according to claim 2, wherein the clamping mechanism (7) comprises:

the right side of the base (1) is rotatably connected with the first rotating piece (71);

the left side and the right side of the upper part of the base (1) are symmetrically connected with the second slide rail (75) in front-back; the two second sliding rails (75) at the right part are respectively connected with the first bidirectional screw (74) in a rotating way;

a first rotating rod (73), wherein the first rotating rod (73) is connected between one sides of the first bidirectional screw rods (74) which are close to each other;

a first belt (72) wound between the front side of the first rotating lever (73) and the front side of the first rotating member (71) by a guide wheel;

the clamping rods (76) are connected with the clamping rods (76) in a threaded mode on the front side and the rear side of the first bidirectional screw rod (74), the left side and the right side of the clamping rods (76) are connected with similar second sliding rails (75) in a sliding mode, and the clamping rods (76) are in extrusion fit with similar lifting devices (41);

the limiting frames (77) are connected to the clamping rods (76) in a sliding mode, the limiting frames (77) are in extrusion fit with the similar lifting devices (41), and the limiting frames (77) are in extrusion fit with the base (1).

4. A collapsible infusion chair according to claim 3, further comprising a locking mechanism (6) for locking the backrest (3), the locking mechanism (6) comprising:

a second guide rod (61), wherein the second guide rod (61) is connected to the lower side of the first guide rod (57);

a sliding frame (62), wherein the sliding frame (62) is connected to the second guide rod (61);

the left side and the right side of the rear lower part of the base (1) are connected with the first slide rail (63), and the first slide rail (63) is connected with the slide frame (62) in a sliding way;

the left side and the right side of the rear part of the base (1) are both connected with the first sliding part (64) in a sliding way, one side, close to each other, of the first sliding part (64) is provided with an inclined plane, and the inclined planes on the first sliding part (64) are in extrusion fit with the sliding frame (62);

the friction pieces (65), one side of the front part of the first sliding piece (64) far away from each other is connected with the friction pieces (65), the friction pieces (65) are in clamping fit with the backrest (3), and the friction pieces (65) are in extrusion fit with the base (1);

and the first springs (66) are wound between the first sliding parts (64) and the base (1), and the first springs (66) are wound on the similar first sliding parts (64).

5. A collapsible infusion chair according to claim 4, further comprising an anti-slip mechanism (8) for preventing the telescopic infusion support (21) from slipping loose, the anti-slip mechanism (8) comprising:

the right side of the upper part of the fixing piece (2) is connected with a third sliding rail (81);

the second bidirectional screw (83) is rotationally connected with the second bidirectional screw (83) in the third sliding rail (81); the anti-skid member (82), the front and back sides of the second bidirectional screw (83) are connected with the anti-skid member (82) in a threaded manner, the anti-skid member (82) is connected with the third sliding rail (81) in a sliding manner, and the anti-skid member (82) is matched with the telescopic infusion support (21) in an extrusion manner;

the front side of the second bidirectional screw rod (83) is connected with a second rotary rod (84), and the second rotary rod (84) is rotatably connected with the third sliding rail (81);

and a second belt (85) is wound between the front side of the second rotating rod (84) and the front side of the first rotating member (71) through a guide wheel.

6. A collapsible infusion chair according to claim 5, further comprising a display mechanism (9) for providing a platform for placement of items, the display mechanism (9) comprising:

a second rotating member (91), wherein the left side of the rear upper part of the base (1) is rotatably connected with the second rotating member (91); the second unidirectional screw rod (93) is rotatably connected between the front side and the rear side of the right part of the second rotating piece (91);

the sliding plate (92) is connected with the sliding plate (92) through threads on the second unidirectional screw rod (93), and the sliding plate (92) is connected with the second rotating piece (91) in a sliding mode;

the left side of mount (94) upper portion behind base (1) is connected with mount (94), and mount (94) and second rotating member (91) extrusion fit.

7. A collapsible infusion chair according to claim 6, further comprising a striking mechanism (10) for vibrating the second rotatable member (91), the striking mechanism (10) comprising:

the left side of the upper part of the base (1) is connected with a fourth sliding rail (101);

the second sliding piece (103) is connected with the second sliding piece (103) in the fourth sliding rail (101) in a sliding way, and the second sliding piece (103) is matched with the second rotating piece (91) in an extrusion way;

a second spring (102), wherein the second spring (102) is connected between the rear side of the second sliding piece (103) and the inner rear side of the fourth sliding rail (101);

an extrusion part (104), wherein the extrusion part (104) is connected to the front lower side of the second sliding part (103);

the fixed block (105), the front side of second rotating member (91) is connected with two fixed blocks (105), and fixed block (105) and extrusion piece (104) all press fit.

8. A collapsible infusion chair according to claim 7, wherein the sides of the left portions of the anti-slip members (82) adjacent each other are roughened.