TW201542186A - Multifunctional care bed - Google Patents

Abstract

A multifunctional care bed mainly comprises: a primary support base having left and right sides configured with a lifting structure and a secondary support base disposed on the lifting structure; a front support rod and a rear support rod axially connected with the secondary support base respectively for driving the swinging motion of the support rods; a multi-link independent suspension having a front end and a rear end respectively pivoted with the front support rod and the rear support rod; an angle adjusting device linked with the front and rear support rods for driving the support rods lifting and descending the multi-link independent suspension; and a support surface which is a considerable width breathable fabric and connected with two multi-link independent suspensions. The present invention may provide suitable support to the human body weight, so the reaction force by the bed to human body is a minimum. It is also compliant with the human body profile to achieve the most comfortable and excellent ergonomic support.

Description

Multifunctional nursing bed

The invention relates to a multifunctional nursing bed, in particular to a natural ventilation, which can relieve the pressure of the musculoskeletal joints, obtain appropriate support for the body weight, minimize the reaction force of the bed to the human body, and conform to the human body curve. A multi-functional care bed for maximum comfort.

Since 1993, Taiwan has reached the aging society defined by the World Health Organization. With the continuous aging of the population and social changes, the government's investment in welfare measures for the elderly has been growing year by year. The rapid growth of various service achievements has also reflected disability. The urgent need for services for the elderly.

Severely ill users or disabled elderly people who are old and dysfunctional often have difficulty in getting up from the bed alone. They must rely on other assistive devices to get up. If they are serious users or disabled elderly people who have to stay in bed for a long time, All of them need to be assisted by family members or caregivers at the bedside to perform activities such as turning over and recovering, getting up and dining, and making notes. Therefore, the multi-functional nursing bed they are lying on should have the function of assisting to get up or turn over, so that the user or the disabled old person can take care of life alone, it is more convenient, labor-saving, or make it easier for family members and caregivers to take care of themselves. Long-term bedridden life for critically ill users.

However, it is customary to assist the user or the disabled person to get up. In addition, only the special multifunctional nursing bed used in the hospital passes through the rotating screw under the bed, so that the screw pushes up the front half of the bed, so that the user or the disabled old person can sit up. This type of multi-purpose nursing bed commonly used in hospitals is not suitable for home users or disabled elderly people, especially for users who care for their own lives or disabled elderly people.

In addition, in the care of the disabled elderly and the care of the users, The most troublesome family and nursing staff is the problem of bathing and cleaning, and it is also the most difficult to implement. Especially the disabled elderly are inconvenient to move, and the users at the end of the cancer mostly have symptoms such as breathing, pain in the affected part, osteoporosis, etc. Medical facilities such as drip and intubation make it one of the most difficult tasks for the user to clean the body or take a shower.

If the user or the disabled elderly can properly clean the body, In terms of pathological treatment, the benefits are numerous. For example, the patient's stimulation through the shower can increase blood circulation and increase muscle tension. By changing posture during bathing to promote breathing, and cleaning can also reduce the chance of infection. To maintain the normal function of the skin and excretion, the body feels more comfortable, relieves pain, and at the same time satisfies self-esteem, enhances interaction with others, and achieves psychological care. Therefore, it is a very important task.

Therefore, how to create a home-made auxiliary bed Pads to assist the user or the disabled old man to get up, turn over, take a bath in the original multi-functional care bed, or assist the family or caretaker It is easier for the staff to manage the bed activities of the critically ill users, which will be improved by the present invention.

The object of the present invention is to provide a multifunctional nursing bed which has the function of assisting to get up or turn over, in order to achieve convenience and labor saving when assisting the user or the elderly to take care of the life alone.

A second object of the present invention is to provide a multifunctional nursing bed, which enables the support rod to push up or level a multi-link independent suspension, thereby assisting the user or the elderly to get up alone, and can also assist the family or the caregiver. It is easy for people to take care of the activities of the elderly in bed.

Another object of the present invention is to provide a multifunctional nursing bed, which is composed of the multi-link independent suspension and a supporting surface, which can be easily laid and fixed by the multi-link independent suspension. To enable the user or the disabled elderly to perform bathing on the original support surface, so as to save a lot of laborious and dangerous care work.

The multifunctional nursing bed capable of achieving the above-mentioned creation purpose comprises: a main support, which is provided with a front vertical lifting mechanism and a rear vertical lifting mechanism in parallel on the left and right sides, and a front support member disposed on the lifting structure; a front support rod and a rear support rod, the bottom ends of which are respectively pivotally connected between the front and rear ends of the auxiliary support, each having a main pole and a a secondary pole and a middle pole positioned between the primary pole and the secondary pole;

1‧‧‧ main support

11‧‧‧ bottom member

12‧‧‧ Telescopic bracket

13‧‧‧Rotary wheel

14‧‧‧Drive motor

15‧‧‧Steering motor

16‧‧‧Front vertical lifting mechanism

17‧‧‧ Rear vertical lifting mechanism

18‧‧‧ Deputy Support

21‧‧‧Front support rod

22‧‧‧ Rear support rod

23‧‧‧ main pole

24‧‧‧Auxiliary

25‧‧‧中杆

3‧‧‧Multi-link independent suspension

31‧‧‧ front end

32‧‧‧ Backend

33‧‧‧ Turning to the pivot

4‧‧‧ Angle adjustment device

41‧‧‧ screw

42‧‧‧Motor set

43‧‧‧ screw fittings

5‧‧‧Support surface

51‧‧‧s

52‧‧‧ Back

53‧‧‧ legs

54‧‧‧flat long holes

6‧‧‧Computer Toilet Seat

7‧‧‧Waterproof canvas

71‧‧‧Drain valve

72‧‧‧ shower head

73‧‧‧Dryer

8‧‧‧Control unit

1 is a schematic view showing the recovery level of the first embodiment of the multifunctional nursing bed of the present invention; FIG. 2 is a front elevation view of the first embodiment of the multifunctional nursing bed; FIG. 3 is a first embodiment of the multifunctional nursing bed. FIG. 4 is a front elevation view of the second embodiment of the multifunctional nursing bed; FIG. 5 is a schematic diagram of the recovery level of the second embodiment of the multifunctional nursing bed; FIG. FIG. 7 is a schematic diagram showing the recovery level of the third embodiment of the multifunctional nursing bed; FIG. 8A and FIG. 8B are schematic cross-sectional views and exploded views of the angle adjusting device; FIG. a top view of the support surface of the multifunctional nursing bed; FIG. 9A is an enlarged schematic cross-sectional view of the back of the support surface; FIG. 9B is an enlarged schematic cross-sectional view of the seat portion of the support surface; 9C is an enlarged schematic cross-sectional view of the leg portion of the support surface; FIG. 9D is an enlarged schematic cross-sectional view showing the flat long hole separation by the external force generating deformation action of the seat surface of the support surface; FIG. 10 is used for the multifunctional nursing bed. Schematic diagram of the toilet; FIG. 11 is a schematic diagram of the multifunctional nursing bed providing the user to take a bath; FIG. 12 is a schematic diagram of the multifunctional nursing bed providing the user to dry; and FIG. 13 and FIG. 14 are provided for the multifunctional nursing bed. A schematic diagram of the person turning over and working.

Referring to FIG. 1 , the multifunctional nursing bed provided by the present invention mainly comprises: a main support 1, a front support rod 21 and a rear support rod 22, two multi-link independent suspensions 3, and an angle adjusting device. 4. A control unit 8 and a support surface 5 are formed.

The main support 1 is provided with a front vertical lifting mechanism 16 and a rear vertical lifting mechanism 17 and a lifting structure disposed on the lifting structure. 18; the lifting structure disposed on the main support 1 and the auxiliary support 18 pivotally connected to one end of the lifting structure away from the main support 1.

The front support rod 21 and the rear support rod 22 are respectively pivotally connected between the front and rear ends of the auxiliary support 18

The two-link independent suspension 3 (multi-link independent Suspension) two front ends 31 and two rear ends 32 having two links, respectively pivotally connected to the top ends of the second rods 24 and the middle rods 25 to form two tilting pivot points 33 at the front end 31 and the rear end 32 ( Pitch over fulcrum), the multi-link independent suspension 3 can be deflected relative to the main support 1 such that the angles of the connecting lines of the front and rear ends thereof are changed with respect to the ground; the angle adjusting device 4 is coupled to the front support The rod 21 and the rear support rod 22 provide the power thereof; the control unit 8 is the start and stop of the device controlled angle adjusting device 4 and the lifting structure; the supporting surface 5 is a breathable fabric connecting the two multi-link independent suspension 3, a hole having a relatively wide and regular or irregular arrangement thereon.

For a more detailed description of the invention, please refer to Figure 2, the main support 1 A bottom member 11 and a telescopic support 12 projecting from the bottom member 11 are included. The two ends of the telescopic support 12 extend in parallel to the two rotating wheels 13 , and the telescopic support 12 can adjust the distance between the two rotating wheels 13 and the center of the main support 1 as a change value from the main support One end of the end of the two slewing wheels 13 is gradually enlarged to one end of the end of the slewing wheel 13 remote from the main pedestal 1, so that the stability of the main pedestal 1 can be increased; for example, the two slewing wheels 13 are shortened. The relative distance between them can improve the mobile function of the multifunctional nursing bed. Moreover, the relative distance between the two telescopic brackets 12 is relatively small, and can be set according to the required length. The lifting structure includes the front vertical lifting mechanism 16 and the rear vertical lifting mechanism 17 disposed in parallel, and pivoting the front hanging The straight lifting mechanism 16 and the rear vertical lifting mechanism 17 are remote from the auxiliary bearing 18 at the other end of the main support 1.

The lifting structure is coupled to the angle adjusting device 4 to make the corner The degree adjusting device 4 is a driving motor 14 and a steering motor 15, and is powered by the driving motor 14 and the steering motor 15. In order to make the multifunctional nursing bed move in a limited space, the multi-purpose nursing has a turning wheel 13 at each end, so that the multifunctional nursing bed has a more stable and non-swaying effect during the turning and turning motion, and can be combined with the turning wheel. 13 Synchronously maneuvering free turn and limit straight line, the slewing wheel 13 is also controlled by the control unit 8 to drive the drive motor 14, and the drive motor 14 is also pivotally connected to the steering motor 15, which is controlled by the control unit 8 Turn the turning wheel 13. In addition to the straight-through control of the slewing wheel 13, the present invention increases the stability of the traveling direction of the multifunctional nursing bed, and can also improve the flexibility and easiness of turning of the multifunctional nursing bed due to the reversible action of the slewing wheel 13.

As shown in FIG. 1 , the front support bar 21 and the rear support bar 22, the bottom end of which is respectively pivotally moved between the front and rear ends of the auxiliary support 18; as shown in FIG. 2, the front support rod 21 and the rear support rod 22 each have a main rod 23 and a The auxiliary rod 24 and a center rod 25 located between the main rod 23 and the auxiliary rod 24. The overall shape of the sub-mount 18 is substantially rectangular, and the two long sides of the two sub-mounts 18 are on the left and right sides of the main support 1, and the two ends of the long-axis respectively form a front end of the sub-mount and A rear end of the support. The auxiliary support 18 pivotally connects the front end of the auxiliary support to the rear end of the auxiliary support in the left and right axial direction. The straight lifting mechanism 16 and the rear vertical lifting mechanism 17 can thereby be deflected by raising or lowering the front end of the sub-mount and the rear end of the sub-mount.

As shown in FIG. 1, the angle adjusting device 4 is coupled to the front branch The strut 21 and the rear support bar 22 provide power thereof; and the angle between the sub-support 18 and the front support bar 21 and the rear support bar 22 is adjustable and fixed to the inclination angle of the sub-mount 18 The adjusting device 4 is a motor speed reducing group that can rotate the front support rod 21 when the front support rod 21 and the rear support rod 22 are driven to rotate forward or reverse in situ. And the rear support bar 22 to achieve a first angle at which the sub-mount 18 can be close to the ground at the bottom, and the multi-link independent suspension 3 is also kept close to a horizontal state; or as shown in FIG. 2, the front end 31 is high Rotating between a second angle of the predetermined height of the rear end 32, such that the two front ends 31 of the multi-link independent suspension 3 rise to assume a posture of sitting posture; or as shown in FIG. 32 is rotated between a third angle higher than a predetermined height of the front end 31, such that the two rear ends 32 of the multi-link independent suspension 3 are raised to reach the posture of lifting the legs.

Further, the angle adjusting device 4 includes a speed reducing device, and The output shaft of the reduction gear is coupled to the main rod 23 in contact with the sub-mount shaft.

For another embodiment, please refer to FIG. 4 to FIG. 5, which is the main pole 23 An angle adjusting device 4 for adjusting and fixing the inclination angle of the main rod 23 is disposed between the auxiliary support 18; the third embodiment refers to FIG. 6 to FIG. 7 , and the middle rod 25 and the auxiliary support 18 are provided. The angle between the rotation points is provided with an angle adjusting device 4 for adjusting and fixing the inclination angle of the main rod 23. As shown in Figure 8, the angle The adjusting device 4 mainly comprises a screw 41, a motor unit 42 and a screwing member 43. The screw 41 is pivotally disposed between the main rod 23 and the sub-mount 18, and an axis thereof and the main rod 23 and the sub-mount 18 form a long axis of a triangle. The main rod 23 is elongated or shortened relative to the sub-mount 18. The motor unit 42 is also disposed behind the screw 41 and is composed of a motor and a reduction gear box that can be driven by the motor. The output shaft of the reduction gear box is engaged with the screw 41, whereby the motor group 42 can drive the screw 41 to rotate in place for a predetermined number of weeks at a low rotation speed and a high torque. The screw member 43 is provided with a through screw hole and is screwed onto the screw 41 by the screw hole.

Therefore, when the screw 41 is driven by the motor unit 42 to rotate forward or reverse in place, because the screw member 43 is urged by the thread of the screw 41, the screw 41 is driven along the screw 41. The axial end is rotationally displaced toward the front end 31 or the rear end 32 of the main rod 23. Since the length of the screw 41 is fixed and the bottom end is pivotally connected to the sub-mount 18, when the screw 41 and the screw member 43 are gradually shortened in length, the main rod 23 is raised higher, even if The main rod 23 is gradually steeply inclined; on the contrary, when the screw 41 and the screwing member 43 are gradually extended, the lower the main rod 23 is pulled down, even if the front support rod 21 and the rear support are The rod 22 and the multi-link independent suspension 3 are gradually lying flat. When the motor unit 42 is stopped, the screw 41 can stably support the front support rod 21 and the rear support rod 22 at the current angle through the thread engagement relationship between the screw 41 and the screw member 43 without slipping. Take off or loose. Obviously, the present embodiment provides a left-right pair between the screw member 43 and the sub-mount 18 The two screws 41 are referred to in order to enhance the stability and balance during support and push-pull.

As shown in FIG. 9, the support surface 5 of the present invention is further packaged. The seat portion 51, the back portion 52 and the leg portion 53 of the multi-link type independent suspension 3 are included, wherein the seat portion 51, the back portion 52 and the leg portion 53 are supported by the front support rod 21 under the seat surface, the rear support rod 22 and the angle adjustment device 4 are operatively supported on the multi-link independent suspension 3 as a synchronous movement of the back 52 lying. In the lying position, the front support bar 21, the rear support bar 22 and the angle adjusting device 4 move forward and lift the leg portion 53, so that the back 52 automatically provides a weight reaction when lying down The back 52 supports the seat 51 and the back 52. The relatively heavy weight user advantageously receives the greater support of the back 52 as the back 52 support.

Please refer to FIG. 9A for a cross-sectional view of the back 52, when the back The portion 52 is inclined so that the user leans against the support surface 5 which is inclined on the back 52, wherein the seat portion 51 of the support surface 5 reacts by gravity to make a partial or irregular partial thickened surface of the support surface 5, The support surface 5 can be made to have a horizontal force; please refer to FIG. 9B is a schematic cross-sectional view of the seat portion 51. The back portion 52 and the seat portion 51 are formed by a partial thickening comfort of the support surface 5, and the back portion 52 is adjusted. The shape of the seat 51 is varied and the ergonomic support required by the user is provided for the user to be in a horizontally lying and lying state at any time. Especially when the support surface 5 varies in part thickness, or the size of the hole, or the hole Maintaining the user's comfortably lying on the support surface 5 and providing an optimal local ergonomic support to the user's anatomy as the user's pelvis rotates during lying down type. Please refer to FIG. 9C as a schematic cross-sectional view of the leg portion 53. In addition, the support surface 5 can prevent the user's knees and thighs from being in an uncomfortable lifting force, so that the force is well distributed on the knee or dispersed by bending. In the area of the leg 53. Moreover, the support surface 5 of the seat portion 51 and the back portion 52 produces a varying shape of the bucket while actively distributing the pressure of the surrounding partial area so that the user feels comfortable maintaining the back portion 52.

If the user needs to go to the toilet, the user can go through the controller, Or a smart phone, or a tablet computer and other control devices to issue commands, which are controlled by external buttons (or touch interfaces) of the control device, or by touch screen control via the control device, as shown in FIG. 10, when controlling When the device receives the command, the left and right sets of rear support bars 22 are driven to rise, the leg portions 53 of the support surface 5 are raised, and then the left and right sets of front support bars 21 are driven to rise, and the back 52 of the support surface 5 is at the same rate. As shown in FIG. 9D, the seat portion 51 defines a flat long hole 54 which is held in a closed state by using a strong magnet, and the flat long hole 54 is applied to the seat portion 51 with the weight of the user's buttocks. The flat long hole 54 is separated by the external force to cause the flat portion 54 to be deformed, and the flat long hole 54 is automatically enlarged, and the front vertical lifting mechanism 16 and the rear vertical are both sides on the left and right sides without changing the sitting direction of the body. Lifting mechanism 17 synchronously descends to the computer toilet Above the seat 6, the user is provided with a toilet. When the user completes the toilet, the computer toilet seat 6 automatically cleans and dries the user's toilet part, and the user can then give instructions to the control device to maintain the lying position or the sitting position, and maintain the sitting posture of the multifunctional nursing bed. Integrity, both hygienic and safe, is a good helper for people with reduced mobility.

Please refer to Figure 11 for the multifunctional nursing bed to provide the user with a bath or Another function of the spa is that when the front end 31, the rear end 32 and the pitch over fulcrum of the multi-link independent suspension 3 are in a horizontal state, a water-shield canvas 7 is fixed to the multi-connection. The front end 31 of the rod-type independent suspension 3 or the rear end 32, and the water-shielding canvas 7 is pivotally connected to the two-link independent suspension 3 to provide an accommodating space formed on a support surface. 5 below, and the water-repellent canvas 7 has a drain valve at the bottom, and the drain valve is connected with a drain pipe (not shown). When the water-repellent canvas 7 is unfolded and fixed on the bottom side of the multi-link independent suspension 3 of the multifunctional nursing bed, the space on the two-link independent suspension 3 forms a shower area range, when the user passes through a shower head 72. The sewage after washing the body in the shower area is in a low trap shape to the drain valve, and the water supply and drainage is quickly and smoothly discharged out of the water-blocking canvas 7 or discharged into the computer toilet seat 6.

In addition, referring to FIG. 12, the back 52 and the leg 53 are both A dryer 73 is provided. When the user finishes bathing, a warm gas is discharged from the dryer to dry the surface of the user's body to keep the body dry.

Please refer to Figure 13 and Figure 14, for general long-term bed users, because Partial compression of the body leads to poor circulation system. In order to reduce the long-term compression of the body part, it is necessary to periodically turn the user around to make the user change from lying to the weak part of the leg and waist. The control unit 8 of the present invention drives the front vertical lifting mechanism 16 or the rear vertical lifting mechanism 17 to lie on the seat portion 51 and the back portion 52 while preventing the rolling of the user's buttocks. The present invention further adopts a lifting structure and is coupled to The angle adjusting device 4 sequentially controls the tilting device design of the multi-link independent suspension 3, and controls the multi-link independent by raising and lowering the front vertical lifting mechanism 16 or the rear vertical lifting mechanism 17 on the left and right sides. The amount of tilt of the suspension 3 is changed to change the position of the body to the pressing point. When the lifting structure of the left side is raised or lowered, the front vertical lifting mechanism 16 or the rear vertical lifting mechanism 17 of the left side can drive the multi-link of the left side. The independent suspension 3 is turned over and restored to the level; when the lifting structure of the right side is raised or lowered, the front vertical lifting mechanism 16 or the rearward side of the right side can be made The lift mechanism 17 drives the right of the multi-link independent suspension 3 and inversion recovery level, thereby changing the contact position of the local body, reducing the generation of poor circulation.

In summary, this case is not only innovative in terms of space type, It can enhance the above-mentioned multiple functions compared with the conventional articles. It should fully comply with the statutory new patent requirements for novelty and progressiveness. If you apply for it according to law, you are requested to approve the new patent application case for your creation.

1‧‧‧ main support

11‧‧‧ bottom member

12‧‧‧ Telescopic bracket

13‧‧‧Rotary wheel

14‧‧‧Drive motor

15‧‧‧Steering motor

16‧‧‧Front vertical lifting mechanism

17‧‧‧ Rear vertical lifting mechanism

18‧‧‧ Deputy Support

21‧‧‧Front support rod

22‧‧‧ Rear support rod

23‧‧‧ main pole

24‧‧‧Auxiliary

25‧‧‧中杆

31‧‧‧ front end

32‧‧‧ Backend

33‧‧‧ Turning to the pivot

4‧‧‧ Angle adjustment device

5‧‧‧Support surface

73‧‧‧Dryer

Claims (8)

A multifunctional nursing bed comprising: a main support, a front vertical lifting mechanism and a rear vertical lifting mechanism lifting structure are arranged in parallel on the left and right sides, and a sub-support provided on the lifting structure; a support rod and a rear support rod, wherein bottom ends thereof are respectively pivotally moved between the front and rear ends of the auxiliary support, each having a main rod, a sub rod, and the main rod and the sub rod a middle pole; a two-link independent suspension having a front end and a rear end of the double link, respectively pivoted with the top of the secondary rod and the middle rod to form at the front end and the rear end a two-rotation independent pivot, the multi-link independent suspension can be deflected relative to the main support, so that the angles of the connecting lines of the front and rear ends are changed with respect to the ground; an angle adjusting device is coupled to the front supporting rod and The rear support bar provides its power; the control unit controls the start and stop of the angle adjustment device and the lifting structure by the device; a support surface is connected to the two multi-link independent suspension by a ventilating fabric, Quite wide and regular or not The arrangement of the holes. The multi-functional care bed of claim 1, wherein the main support comprises a bottom member and a telescopic support projecting from the bottom member. The multifunctional nursing bed according to claim 2, wherein the expansion and contraction The two ends of the bracket extend parallel to the two rotating wheels, and the telescopic bracket can adjust a distance between the two rotating wheels and the center of the main bearing, and the distance is from the end of the two rotating wheels of the main bearing One end of the end of the turning wheel away from the main support gradually becomes larger, thereby increasing the stability of the main support. The multi-functional care bed of claim 1, wherein the lifting structure comprises the front vertical lifting mechanism and the rear vertical lifting mechanism disposed in parallel, pivoting the front vertical lifting mechanism and the rear vertical lifting mechanism away from the The sub-mount at the other end of the main support. The lifting structure is coupled to an angle adjusting device to provide the power to the angle adjusting device. The multi-functional care bed of claim 1, wherein the overall shape of the auxiliary support is substantially rectangular, and the two long sides of the second support are on the left and right sides of the main support. The two ends of the long shaft respectively form a front end of the auxiliary support and a rear end of the auxiliary support. The auxiliary support pivotally connects the front end of the auxiliary support and the rear end of the auxiliary support to the front vertical lifting mechanism and the rear vertical lifting mechanism according to the left and right axial direction, whereby the front end of the auxiliary bearing and the auxiliary branch can be The rear end of the seat is deflected by raising or lowering the axis. The multi-functional care bed of claim 1, wherein the auxiliary support and the front support bar and the rear support bar are provided with the angle adjusting device for adjusting and fixing the inclination angle of the auxiliary support. The angle adjusting device is a motor speed reducing group, and the angle adjusting device can rotate the front support bar and the rear support when driving the front support bar and the rear support bar to rotate forward or reverse in situ The rod is configured to achieve a first angle that the sub-mount can be close to the ground at the bottom, and the multi-link independent suspension of the multi-functional care bed, wherein the support surface further comprises the multi-link independent suspension a seat, a back, and a leg, wherein the seat, the back, and the leg are operatively supported by the multi-link independent by the front support bar, the rear support bar, and the angle adjustment device under the seat surface On the suspension, it moves synchronously as the back rests. The multifunctional nursing bed according to claim 7, wherein the seat portion is formed by a partial thickening and comfortable support surface, and the shape of the seat is changed and the ergonomic support required by the user is adjusted. , so that the user can be lying horizontally and lying down at any time. The multifunctional nursing bed according to claim 1, further comprising a water-blocking canvas, the tarpaulin connecting the two-link independent suspension, having at least one water inlet and outlet.