CN212730190U

CN212730190U - Seat cushion with head and neck fixing device

Info

Publication number: CN212730190U
Application number: CN202020240623.7U
Authority: CN
Inventors: 陈晓敏; 肖娅娟
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-02
Filing date: 2020-03-02
Publication date: 2021-03-19
Anticipated expiration: 2030-03-02

Abstract

The utility model relates to the technical field of medical equipment, a seatpad with neck fixing device is disclosed, including bottom plate and backplate, bottom plate one side is located to the backplate, constitutes the seat after backplate bottom is connected with the bottom plate, in addition, this seatpad still includes neck fixing device, neck fixing device includes first elevating system, second elevating system, neck fixing device and head fixing device, the dorsal part of backplate is located to first elevating system, vertical direction reciprocating motion is followed to first elevating system's output drive neck fixing device, head fixing device is located neck fixing device's top, head fixing device follows vertical direction reciprocating motion under second elevating system's drive. The utility model realizes the fixation and protection of the neck of the human body by adding the neck fixing device, thereby improving the safety of the patient when sitting; meanwhile, the height positions of the neck fixing device and the head fixing device can be adjusted as required, so that the seat cushion can be suitable for different patients to use.

Description

Seat cushion with head and neck fixing device

Technical Field

The utility model relates to the technical field of medical equipment, particularly, relate to a seatpad with neck fixing device.

Background

Many critical patients, such as botanicals, tracheotomies, or cerebral palsy patients, are often seated in wheelchairs or special chairs when out of bed. However, since the general serious patient does not have his own consciousness or mobility, the patient may swing or even fall down while sitting, and the head may be impacted again, which aggravates the condition of the patient. The existing wheelchairs or chairs do not have special fixing devices, and patients are often directly bound by using binding bands, which may cause extreme discomfort to the patients.

Therefore, the patent document with the publication number "204734631U" discloses a wheelchair with a head fixing device, which comprises a wheelchair body, wherein a backrest and two handrails are arranged on the wheelchair body, two rollers are arranged below the wheelchair body, the head fixing device is arranged above the backrest and comprises a backup plate fixed above the backrest, a transverse sliding groove is formed in the backup plate, two clamping plates capable of sliding along the transverse sliding groove are arranged in the transverse sliding groove, a fixing belt is arranged on one clamping plate, a supporting column for binding the fixing belt is arranged on the other clamping plate, and a fixing mechanism for fixing the clamping plate on the backup plate is further arranged on each clamping plate. Although the patent can solve the problems, in practical application, the patient is found that the neck of the patient is easily twisted when the body of the patient swings or falls down by only fixing the head of the patient.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a seatpad with neck fixing device through addding neck fixing device and being used for fixed human neck, realizes protecting patient's head and neck simultaneously, ensures patient's personal safety.

The embodiment of the utility model discloses a realize through following technical scheme:

a seat cushion with a head and neck fixing device comprises a bottom plate and a back plate, wherein the back plate is arranged on one side of the bottom plate, and the bottom of the back plate is connected with the bottom plate to form a seat surface;

in addition, this seatpad still includes neck fixing device, neck fixing device includes first elevating system, second elevating system, neck fixing device and head fixing device, first elevating system locates the dorsal part of backplate, the output drive of first elevating system neck fixing device is along vertical direction reciprocating motion, head fixing device is located neck fixing device's top, head fixing device is in along vertical direction reciprocating motion under the drive of second elevating system.

Optionally, the neck fixing device comprises a fixing seat and two clamping assemblies, and the two clamping assemblies are symmetrically arranged on two sides of the fixing seat;

the centre gripping subassembly includes first rocking arm, second rocking arm and arc piece, the one end of first rocking arm with the lateral wall of fixing base rotates to be connected, the other end of first rocking arm with the one end of second rocking arm is articulated to be connected, the other end of second rocking arm with arc piece fixed connection, be equipped with connecting portion on the arc piece, two the arc piece passes through connecting portion fixed connection.

Optionally, the arc piece includes clamping state and non-clamping state at least, and under clamping state, two the arc piece constitutes the clamping area who is used for the human neck of centre gripping, and the front side of human neck not with the inner wall of arc piece contacts.

Optionally, the head fixing device includes a supporting block, an arc-shaped concave portion is arranged on the front side of the supporting block, grooves corresponding to human ears are arranged on two sides of the concave portion, a fastening head band is further arranged on the front side of the supporting block, one end of the fastening head band is fixedly connected with one side of the supporting block, and the other end of the fastening head band is detachably connected with the other side of the supporting block.

Optionally, first elevating system includes driving seat and screw rod, the driving seat with backplate fixed connection, the driving seat along vertical direction be equipped with the screw hole of screw rod looks adaptation, the one end of screw rod is passed behind the screw hole with neck fixing device rotates and is connected, the other end of screw rod is equipped with the drive division, the drive division drive the screw rod rotates.

Optionally, a pair of guide cylinders is symmetrically arranged on two sides of the transmission seat, guide rods are inserted into the guide cylinders, and one ends of the guide rods are fixedly connected with the neck fixing device.

Optionally, the second lifting mechanism comprises at least one adjustable telescopic rod, the fixed end of the adjustable telescopic rod is fixedly connected with the neck fixing device, and the other end of the adjustable telescopic rod is fixedly connected with the head fixing device.

Optionally, the bottom plate further comprises a first rotating shaft, the first rotating shaft can be freely rotated and is arranged on one side of the bottom plate, the bottom of the back plate is fixedly connected with the first rotating shaft, and the first rotating shaft is provided with a fixing pin for limiting the first rotating shaft to freely rotate.

Optionally, the shoe further comprises a pedal, the pedal is arranged on one side of the bottom plate far away from the back plate, a pair of transmission units are symmetrically arranged on two sides of the pedal, the transmission unit comprises a rotating arm, a second rotating shaft, a first gear, a second gear, a rack and a transition seat, one end of the rotating arm is hinged with the side wall of the pedal, the other end of the first gear is hinged with the side wall of the bottom plate through the second rotating shaft, the first gear is sleeved on the first rotating shaft, and rotates coaxially with the first rotating shaft, the second gear is sleeved on the second rotating shaft and rotates coaxially with the second rotating shaft, the transition seat is arranged on the side wall of the bottom plate, one end of the rack is meshed with the first gear, the other end of the gear is meshed with the second gear after penetrating through the transition seat, and the rack is connected with the transition seat in a sliding manner.

Optionally, a fastening waistband is arranged on the front side of the back plate, one end of the fastening waistband is fixedly connected with one side of the back plate, and the other end of the fastening waistband is detachably connected with the other side of the back plate.

The utility model discloses technical scheme has following advantage and beneficial effect at least:

1. the utility model provides a seatpad is through addding neck fixing device for prior art, realizes fixing the protection to the neck of human body to improve the security when the patient sits, ensure patient's personal safety.

2. The utility model discloses a set up first elevating system and drive the lift of neck fixing device, set up second elevating system and drive the lift of head fixing device, when using to the patient of difference, can adjust neck fixing device and head fixing device's high position as required for this seatpad can be applicable to different patients and use, improves its self practicality.

3. The utility model discloses a backplate rotates with the bottom plate to be connected, can adjust to the optimal condition with the inclination of the relative bottom plate of backplate according to patient's demand when in-service use for the patient sits and stands more comfortablely, add the footboard simultaneously and supply the patient to put the foot, and the backplate can drive the footboard motion through drive unit in the pivoted, realize the position of automatically regulated footboard, rotate to be in same horizontal plane with the bottom plate when the backplate, the footboard also rotates to be parallel with the bottom plate, make the patient can directly lay flat on this cushion.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a seat cushion according to an embodiment of the present invention;

fig. 2 is a top view of a neck fixing device according to an embodiment of the present invention;

fig. 3 is a front view of a head fixation device according to an embodiment of the present invention;

fig. 4 is a rear view of a first lifting mechanism provided in an embodiment of the present invention;

fig. 5 is a front view of a transmission unit according to an embodiment of the present invention;

fig. 6 is a schematic structural view of the seat cushion according to another state provided by the embodiment of the present invention.

Icon: 1-bottom plate, 2-back plate, 3-first lifting mechanism, 301-transmission seat, 302-screw rod, 303-driving part, 304-guide cylinder, 305-guide rod, 4-second lifting mechanism, 5-neck fixing device, 501-fixing seat, 502-first rotating arm, 503-second rotating arm, 504-arc block, 505-connecting part, 6-head fixing device, 601-supporting block, 602-inner concave part, 603-groove, 604-fastening head band, 7-first rotating shaft, 8-pedal, 9-rotating arm, 10-second rotating shaft, 11-first gear, 12-second gear, 13-rack, 14-transition seat and 15-fastening belt.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, the description is only for convenience of description and simplification, but the indication or suggestion that the device or element to be referred must have a specific position, be constructed and operated in a specific position, and thus, cannot be understood as a limitation of the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not require that the components be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Examples

referring to fig. 1, the seat cushion with a head and neck fixing device includes a bottom plate 1 and a back plate 2, the back plate 2 is disposed on one side of the bottom plate 1, the bottom of the back plate 2 is connected with the bottom plate 1 to form a seat, and armrests can be disposed on two sides of the top surface of the bottom plate 1, which will not be described in detail in the prior art;

in addition, the seat cushion also comprises a head and neck fixing device for fixing the head and the neck of a human body, the head and neck fixing device comprises a first lifting mechanism 3, a second lifting mechanism 4, a neck fixing device 5 for fixing the neck of the human body and a head fixing device 6 for fixing the head of the human body, the first lifting mechanism is arranged on the back side of the back plate 2, the output end of the first lifting mechanism 3 drives the neck fixing device 5 to move in a reciprocating mode along the vertical direction, the head fixing device 6 is located above the neck fixing device 5, and the head fixing device 6 is driven by the second lifting mechanism 4 to move in a reciprocating mode along the vertical direction;

through the arrangement, when different patients are actually used, the patients sit on the bottom plate 1 firstly, the back of the patients keeps in an upright state, medical staff or family members of the patients can adjust the height positions of the head fixing device 6 and the neck fixing device 5 through the first lifting mechanism 3 and the second lifting mechanism 4 to enable the head fixing device and the neck fixing device to be aligned with the head and the neck of the patients respectively, the heads of the patients can be fixed through the head fixing device 6, the neck of the patients can be fixed through the neck fixing device 5, the whole operation process is simple, the heads and the necks of the patients can be fixed simultaneously, the personal safety of the patients in sitting and standing is guaranteed, meanwhile, the height positions of the head fixing device 6 and the neck fixing device 5 are adjusted through the first lifting mechanism 3 and the second lifting mechanism 4, the cushion can meet the use requirements of different patients, and is strong in practicability.

In this embodiment, referring to fig. 2, specifically, the neck fixing device 5 includes a fixing base 501 and two clamping assemblies for clamping the neck of the patient, and the two clamping assemblies are symmetrically disposed on two sides of the fixing base 501;

the clamping assembly comprises a first rotating arm 502, a second rotating arm 503 and arc-shaped blocks 504, one end of the first rotating arm 502 is rotatably connected with the side wall of the fixed seat 501, so that the first rotating arm 502 can freely rotate in a horizontal plane, the other end of the first rotating arm 502 is hinged with one end of the second rotating arm 503, so that the second rotating arm 503 can also freely rotate in the horizontal plane, the other end of the second rotating arm 503 is fixedly connected with the arc-shaped blocks 504, the arc-shaped blocks 504 are provided with connecting parts 505, the two arc-shaped blocks 504 are fixedly connected through the connecting parts 505, and the connecting modes of the connecting parts 505 are various, such as bolt connection, buckle connection and the like, and are not limited herein; the arc-shaped block 504 is driven to freely move in the horizontal plane by arranging the first rotating arm 502 and the second rotating arm 503, so that the arc-shaped block 504 can move more flexibly and conveniently; simultaneously, two arc pieces 504 can counterpoint when the centre gripping for arc piece 504 includes clamping condition and non-clamping condition at least, under clamping condition, two arc pieces 504 counterpoint, and two arc pieces 504 constitute the clamping zone who is used for the human neck of centre gripping, the realization is in this clamping zone with patient's neck centre gripping, and the front side of human neck does not contact with the inner wall of arc piece 504, promptly under clamping condition, the throat part of patient's neck front side does not contact with the inner wall of arc piece 504 in, and all the other positions of patient's neck all contact with the inner wall of arc piece 504, can fix patient's neck like this, still can not cause the interference to patient's normal breathing or feed simultaneously, improve patient's comfort level.

In this embodiment, referring to fig. 3, the head fixing device 6 includes a supporting block 601, an arc-shaped concave portion 602 adapted to the back side of the head of the human body is disposed on the front side of the supporting block 601, and grooves 603 corresponding to the ears of the human body are disposed on both sides of the concave portion 602, so that when the head of the patient leans against the concave portion 602 of the supporting block 601, the ears of the patient are just located in the grooves 603, and the ears of the patient are prevented from directly contacting the inner wall of the concave portion 602, so as to be squeezed or even scratched to the ears of the patient, thereby causing discomfort to the patient; meanwhile, the front side of the supporting block 601 is also provided with a fastening head band 604, the fastening head band 604 can directly adopt an elastic band, one end of the fastening head band 604 is fixedly connected with one side of the supporting block 601, the other end of the fastening head band 604 is detachably connected with the other side of the supporting block 601, when the head of a patient leans against the inner concave part 602, the head of the patient can be fixed directly through the fastening head band 604, and preferably, the fixing position of the fastening head band 604 is located in the forehead area of the head of the patient, so that the comfort level of the patient is.

In this embodiment, referring to fig. 4, in order to improve stability and adjustment accuracy during the moving process, the first lifting mechanism 3 includes a transmission seat 301 and a screw 302, the transmission seat 301 is fixedly connected to the back plate 2, the transmission seat 301 is provided with a threaded hole adapted to the screw 302 along a vertical direction, one end of the screw 302 passes through the threaded hole and then is rotatably connected to the neck fixing device 5 through a bearing, the other end of the screw 302 is provided with a driving portion 303, the driving portion 303 drives the screw 302 to rotate, specifically, the driving portion 303 can drive the screw 302 to rotate in an electric or manual manner, such as a manner of providing a motor, a rotating handle, etc., in this embodiment, taking the rotating handle as an example, when the height of the neck driving device 5 needs to be adjusted, the rotating handle is manually rotated to drive the screw 302 to rotate, and the screw 302 moves upward along the vertical direction while rotating, therefore, the fixing seat 501 of the neck fixing device 5 is pushed upwards to realize the lifting of the height of the neck fixing device 5, otherwise, the handle is rotated manually in a reverse rotation mode, and the screw 302 moves downwards to drive the neck fixing device 5 to descend; meanwhile, in order to improve the stability of the neck fixing device 5 in the height adjustment process, a pair of guide cylinders 304 is symmetrically arranged on two sides of the transmission seat 301, guide rods 305 are inserted into the guide cylinders 304, one ends of the guide rods 305 are fixedly connected with the neck fixing device 5, and the guide rods 305 freely move in the guide cylinders 304 while the neck fixing device 5 is lifted.

In this embodiment, with reference to fig. 1, considering that the head fixing device often only needs to be finely adjusted in practical application, in order to adjust the head fixing device, the second lifting mechanism 4 includes at least one adjustable telescopic rod, preferably two in this embodiment, and two adjustable telescopic rods are arranged at intervals, a fixed end of the adjustable telescopic rod is fixedly connected with the neck fixing device 5, and the other end of the adjustable telescopic rod is fixedly connected with the head fixing device 6, so that the height of the head fixing device 6 can be adjusted by the adjustable telescopic rod, and the adjustment is convenient and fast.

In this embodiment, referring to fig. 1, 5 and 6, in order to further improve the practicability of the seat cushion, the seat cushion further includes a first rotating shaft 7, the first rotating shaft 7 is disposed on one side of the bottom plate 1 in a freely rotatable manner, and the bottom of the back plate 2 is fixedly connected to the first rotating shaft 7, so that the back plate 2 can freely turn over relative to the bottom plate 1, thereby adjusting an included angle between the back plate 2 and the bottom plate 1 to meet the use requirement of a patient; in addition, the cushion also includes a pedal 8 for the patient to put feet, the pedal 8 is disposed on one side of the bottom plate 1 far from the back plate 2, a pair of transmission units are symmetrically disposed on two sides of the pedal 8, the transmission units include a rotating arm 9, a second rotating shaft 10, a first gear 11, a second gear 12, a rack 13 and a transition seat 14, one end of the rotating arm 9 is hinged with the side wall of the pedal 8, the hinge mode is specifically that the rotating arm 9 is hinged with the pedal 8 through the rotating shaft, the rotating shaft is fixedly connected with the rotating arm 9 and hinged with the pedal 8, it is ensured that the top surface of the pedal 8 can be adjusted to be horizontal state all the time when the position of the pedal 8 is changed, the other end of the rotating arm 9 is hinged with the side wall of the bottom plate 1 through the second rotating shaft 10, the first gear 11 is sleeved on the first rotating shaft 7 and rotates coaxially with the first rotating shaft 7, the second gear 12 is, the transition seat 14 is used for supporting the rack 13 and is arranged on the side wall of the bottom plate 1, one end of the rack 13 is meshed with the first gear 11, the other end of the rack passes through the transition seat 14 and then is meshed with the second gear 12, and the rack 13 is connected with the transition seat 14 in a sliding manner; through the arrangement, when the backboard 2 turns from a vertical state to a horizontal state, the first rotating shaft 7 also rotates, the first rotating shaft 7 rotates to drive the first gear 11 to rotate, the first gear 11 rotates to drive the rack 13 to move towards the pedal 8, the rack 13 moves to drive the second gear 12 to rotate, the second gear 12 drives the second rotating shaft 10 to rotate, the second rotating shaft 10 rotates to drive the rotating arm 9 to rotate, the position of the pedal 8 is adjusted, the position of the pedal 8 changes along with the turning of the backboard 2 all the time, until the top surface of the backboard 2 and the top surface of the bottom board 1 are in the same horizontal plane, the pedal 8 is driven by the rotating arm 9, the top surface of the backboard is also in the same horizontal plane as the top surface of the bottom board 1, the patient is in a lying state, and the practicability of the seat cushion is improved; it should be noted that, because the rotating arm 9 is adopted in the present embodiment, the moving path of the pedal 8 is an arc line in the actual adjusting process, so to avoid interference between the pedal 8 and the base plate 1 when the position of the pedal 8 changes, the distance between the pedal 8 and the base plate 1 should be ensured to be in a proper position, and meanwhile, the two ends of the rack 13 may be provided with a limiting column to prevent the rack 13 from being disengaged from the first gear 11 or the second gear 12.

In this embodiment, with reference to fig. 1, in order to prevent the body of the patient from swinging or falling down when sitting or standing, a fastening waistband 15 may be further disposed on the front side of the back plate 2, the fastening waistband 15 may also be an elastic tape, one end of the fastening waistband 15 is fixedly connected to one side of the back plate 2, and the other end of the fastening waistband is detachably connected to the other side of the back plate 2, after the patient sits, the position between the abdomen top and the chest bottom of the patient is fixed by the fastening waistband 15, so as to improve the stability of the patient and ensure the comfort of the patient.

It should be noted that, the seat cushion provided in the embodiment may be applied to a common seat or a wheelchair in practical application, and the specific application scenario is not limited herein.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a seatpad with neck fixing device, includes bottom plate and backplate, the backplate is located bottom plate one side, the backplate bottom with constitute the seat after the bottom plate is connected, its characterized in that:

still include neck fixing device, neck fixing device includes first elevating system, second elevating system, neck fixing device and head fixing device, first elevating system locates the dorsal part of backplate, the output drive of first elevating system neck fixing device is along vertical direction reciprocating motion, head fixing device is located neck fixing device's top, head fixing device is in along vertical direction reciprocating motion under second elevating system's the drive.

2. The seat cushion with a whiplash fixation device of claim 1, wherein: the neck fixing device comprises a fixed seat and two clamping components, and the two clamping components are symmetrically arranged on two sides of the fixed seat;

3. The seat cushion with a whiplash fixation device of claim 2, wherein: the arc piece includes clamping state and non-clamping state at least, and under clamping state, two the clamping area that is used for the human neck of centre gripping is constituteed to the arc piece, and the front side of human neck not with the inner wall of arc piece contacts.

4. The seat cushion with a whiplash fixation device of claim 1, wherein: the head fixing device comprises a supporting block, an arc-shaped inward concave part is arranged on the front side of the supporting block, grooves corresponding to human ears are formed in two sides of the inward concave part, a fastening head band is further arranged on the front side of the supporting block, one end of the fastening head band is fixedly connected with one side of the supporting block, and the other end of the fastening head band is detachably connected with the other side of the supporting block.

5. The seat cushion with a whiplash fixation device of claim 1, wherein: first elevating system includes driving seat and screw rod, the driving seat with backplate fixed connection, the driving seat along vertical direction be equipped with the screw hole of screw rod looks adaptation, the one end of screw rod is passed behind the screw hole with neck fixing device rotates and is connected, the other end of screw rod is equipped with the drive division, the drive division drive the screw rod rotates.

6. The seat cushion with a whiplash fixation device of claim 5, wherein: the two sides of the transmission seat are symmetrically provided with a pair of guide cylinders, guide rods are inserted into the guide cylinders, and one ends of the guide rods are fixedly connected with the neck fixing device.

7. The seat cushion with a whiplash fixation device of claim 1, wherein: the second lifting mechanism comprises at least one adjustable telescopic rod, the fixed end of the adjustable telescopic rod is fixedly connected with the neck fixing device, and the other end of the adjustable telescopic rod is fixedly connected with the head fixing device.

8. The seat cushion with a whiplash fixation device of claim 1, wherein: still include first pivot, but first pivot free rotation set up in bottom plate one side, the bottom of backplate with first pivot fixed connection, be equipped with the restriction on the first pivot the fixed pin of first pivot free rotation.

9. The seat cushion with a whiplash fixation device of claim 8, wherein: the pedal is arranged on one side of the bottom plate far away from the back plate, a pair of transmission units are symmetrically arranged on two sides of the pedal, the transmission unit comprises a rotating arm, a second rotating shaft, a first gear, a second gear, a rack and a transition seat, one end of the rotating arm is hinged with the side wall of the pedal, the other end of the first gear is hinged with the side wall of the bottom plate through the second rotating shaft, the first gear is sleeved on the first rotating shaft, and rotates coaxially with the first rotating shaft, the second gear is sleeved on the second rotating shaft and rotates coaxially with the second rotating shaft, the transition seat is arranged on the side wall of the bottom plate, one end of the rack is meshed with the first gear, the other end of the gear is meshed with the second gear after penetrating through the transition seat, and the rack is connected with the transition seat in a sliding manner.

10. The seat cushion with a whiplash fixation device of claim 1, wherein: the front side of the back plate is provided with a fastening waistband, one end of the fastening waistband is fixedly connected with one side of the back plate, and the other end of the fastening waistband is detachably connected with the other side of the back plate.