CN220046322U - Wheelchair for pregnant and lying-in women - Google Patents

Abstract

The utility model discloses a wheelchair for pregnant and lying-in women, which comprises a wheelchair body; the wheelchair body is provided with a shoulder fixing device; the shoulder fixing device comprises a U-shaped safety rod, and the U-shaped safety rod is connected with a backrest of the wheelchair body through a rotating shaft, so that the U-shaped safety rod can be turned up and down; the rotating shaft is fixedly sleeved with a ratchet wheel, and the rotating shaft also comprises a pawl which is arranged on the backrest and matched with the ratchet wheel to enable the ratchet wheel to rotate unidirectionally, so that the U-shaped safety rod can only overturn forwards; the handle is connected with the tail end of the pawl through a stay wire, and when the handle is pulled, the pawl is separated from the ratchet wheel. The pregnant and lying-in women wheelchair with the structure changes the abdomen safety fixing device of the traditional wheelchair into the shoulder safety fixing device, thereby avoiding the compression on the abdomen of the pregnant and lying-in women. Compared with the original abdomen binding, the shoulder pressing fixing mode is better in safety and comfort, and is more suitable for pregnant women with abdomen bulge or puerpera who just makes a caesarean operation.

Description

Wheelchair for pregnant and lying-in women

Technical Field

The utility model relates to the technical field of medical appliances for obstetrics and gynecology, in particular to a wheelchair for pregnant and lying-in women.

Background

The traditional wheelchair is simple in structure and generally comprises a chair back, a seat cushion, wheels, pedals and the like which are perpendicular to the seat cushion, and is commonly applied to various crowds, so that the problems that walking is inconvenient or cannot be performed due to various reasons are solved.

Chinese utility model patent: the publication number is CN204744690U, which discloses a wheelchair for pregnant and lying-in women, comprising a widened seat, an adjustable chair back, a chair back adjusting handle, an adjustable foot pedal, a foot pedal adjusting handle, a rotary small table plate, an infusion support and a storage box; the chair back adjusting handle is located at the joint of the chair back and the seat cushion, the foot pedal adjusting handle is located at the joint of the seat cushion and the foot pedal connecting rod, the rotary small table plate is placed on the armrest when in use, and can rotate to one side of the seat when not in use, the infusion support is located on one side of the seat, and the storage box is located below the seat. The utility model can make the user feel more comfortable, and is convenient to use and simple to operate, thereby being more suitable for pregnant women and lying-in women.

In practical use it has been found that the above-described wheelchair is devoid of safety fixtures, i.e. no safety belt-like devices are used to secure the maternal in the wheelchair. While other wheelchairs generally use a means of binding the abdomen to secure the user, the abdomen is not pressed for pregnant and parturients (especially for the caesarean section), and therefore the existing safety measures are not applicable.

Disclosure of Invention

In view of the above, the present utility model provides a wheelchair for pregnant and lying-in women, which secures the pregnant and lying-in women by a safety lever pressed against the shoulders of a user, avoiding the extrusion of the abdomen of the pregnant and lying-in women.

In order to solve the technical problems, the technical scheme of the utility model is that the wheelchair for pregnant and lying-in women comprises a wheelchair body; the wheelchair body comprises a seat plate and a backrest; the bottom of the wheelchair body is provided with a pair of travelling wheels and a pair of steering wheels, and the travelling wheels are provided with brakes; the wheelchair body is provided with a shoulder fixing device;

the shoulder fixing device comprises a U-shaped safety rod, and the U-shaped safety rod is connected with a backrest of the wheelchair body through a rotating shaft, so that the U-shaped safety rod can be turned up and down; the rotating shaft is fixedly sleeved with a ratchet wheel, and the rotating shaft also comprises a pawl which is arranged on the backrest and matched with the ratchet wheel to enable the ratchet wheel to rotate unidirectionally, so that the U-shaped safety rod can only overturn forwards; the handle is connected with the tail end of the pawl through a stay wire, and when the handle is pulled, the pawl is separated from the ratchet wheel.

As an improvement, the rotating shaft is sleeved with a torsion spring, and the pretightening force of the torsion spring is opposite to the unidirectional movement direction of the ratchet wheel. The torsion spring provides a damping for the U-shaped safety rod, so that the user is prevented from forcefully pressing too hard. Meanwhile, when the pawl is separated from the ratchet wheel, the U-shaped safety rod automatically turns backwards and is automatically separated.

As a further improvement, the U-shaped safety bar is provided with a handrail. The user can hold the armrest while being pushed to maintain the body balance.

As another further improvement, the U-shaped safety rod is sleeved with a soft bag. Improving comfort.

As an improvement, a torsion spring for pressing the pawl against the ratchet is also included. Avoiding the accidental disengagement of the pawl from the ratchet.

As an improvement, the U-shaped safety rod is provided with a detachable table plate. After the U-shaped safety rod is pressed down, articles can be placed on the table board.

As an improvement, a limiting device is arranged on the rotating shaft. The U-shaped safety rod is prevented from turning over backwards.

The utility model has the advantages that: the pregnant and lying-in women wheelchair with the structure changes the abdomen safety fixing device of the traditional wheelchair into the shoulder safety fixing device, thereby avoiding the compression on the abdomen of the pregnant and lying-in women. Compared with the original abdomen binding, the shoulder pressing fixing mode is better in safety and comfort, and is more suitable for pregnant women with abdomen bulge or puerpera who just makes a caesarean operation.

Drawings

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a front view of the U-shaped safety lever.

Fig. 3 is a schematic structural view of the rotating shaft.

The marks in the figure: 1 seat board, 2 back, 3 pushing handle, 4 travelling wheels, 5 steering wheels, 6 pedals, 7 connecting rods, 8 rotating shafts, 9U-shaped safety bars, 10 armrests, 11 table boards, 12 handles, 13 ratchet wheels, 14 pawls, 15 pull wires and 16 pulleys.

Description of the embodiments

In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the following specific embodiments.

As shown in fig. 1 and 2, the wheelchair comprises a wheelchair body; the wheelchair body comprises a seat board 1 and a backrest 2; the bottom of the wheelchair body is provided with a pair of travelling wheels 4 and a pair of steering wheels 5, and the travelling wheels 4 are provided with brakes; similar to the existing wheelchair, a push handle 3 which is convenient for pushing is arranged behind the backrest 2, and a pedal 6 is arranged below and in front of the seat board 1. The above structure is not the focus of the present utility model, and the structure thereof is not repeated.

The wheelchair body is provided with a shoulder fixing device; the shoulder fixing device comprises a U-shaped safety rod 9, and the U-shaped safety rod 9 is connected with the backrest 2 of the wheelchair body by utilizing a rotating shaft 8, so that the U-shaped safety rod 9 can be turned up and down; in the utility model, in order to reserve a space between the U-shaped safety bar 9 and the backrest 2, the U-shaped safety bar 9 is connected with the rotating shaft 8 by the connecting rod 7. Of course, the two ends of the U-shaped safety bar 9 may be bent and then connected to the rotating shaft 8, which is not limited by the present utility model.

The rotating shaft 8 is fixedly sleeved with a ratchet wheel 13, and the rotating shaft also comprises a pawl 14 which is arranged on the backrest 2 and matched with the ratchet wheel 13 to enable the ratchet wheel 13 to rotate unidirectionally, so that the U-shaped safety rod 9 can only turn forwards; also comprises a handle 12, wherein the handle 12 is connected with the tail end of the pawl 14 by a pull wire 15, and the pawl 14 is separated from the ratchet 13 when the handle 12 is pulled.

When the pawl 14 is disengaged from the ratchet 13, the ratchet 13 can be rotated in the reverse direction so that the U-shaped safety lever 9 can be turned backward. However, it is inconvenient to manually use the device, so in this embodiment, the rotating shaft 8 is sleeved with a torsion spring (not shown in the figure), and the pretightening force of the torsion spring is opposite to the unidirectional movement direction of the ratchet 13. The torsion spring has two functions, one is that when the pawl 14 is separated from the ratchet wheel 13, the whole U-shaped safety rod 9 can automatically turn backwards, and the use is more convenient. Secondly, a damping is provided for the forward overturning of the U-shaped safety rod 9, and the situation that the U-shaped safety rod is too hard to press is avoided.

Of course, in order to avoid that the U-shaped safety bar 9 is turned too far back under the action of the torsion spring to hurt the pushing person at the rear, a limiting device can be further arranged to limit the turning angle of the U-shaped safety bar 9.

In addition, in the present embodiment, the pawl 14 is also connected to the backrest 2 by a rotation shaft, so that the pawl 14 can be turned over. And a torsion spring is sleeved on the same rotating shaft to press the pawl 14 on the ratchet wheel 13. The acting end of the pawl 14 and the connecting end of the pull wire 15 are respectively arranged at two sides of the rotating shaft, so that the acting end can be separated from the ratchet wheel 13 only by pulling the pull wire 15 downwards.

In order to improve the comfort, the U-shaped safety rod 9 is sleeved with a soft bag. For convenience of use, a detachable table plate 11 can be arranged on the U-shaped safety bar 9. Of course, in order to facilitate the holding of the pregnant and lying-in women, an armrest 10 may also be provided on the U-shaped safety bar 9.

When the safety device is used, the U-shaped safety rod 9 is turned backwards, and after a pregnant and lying-in woman sits well, the U-shaped safety rod 9 is turned forwards until the shoulder of the pregnant and lying-in woman is pressed (the pregnant and lying-in woman feels uncomfortable due to the fact that the safety rod cannot be too tight). Due to the effect of the ratchet wheel 13 and the pawl 14, the U-shaped safety rod 9 can not turn backwards, so that the pregnant and lying-in women are ensured to be fixed on the wheelchair body.

When the wheelchair is required to leave, the pawl 14 is separated from the ratchet 13 only by pulling the handle 12, and the U-shaped safety rod 9 can automatically turn backwards under the action of the torsion spring.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that the above-mentioned preferred embodiment should not be construed as limiting the utility model, and the scope of the utility model should be defined by the appended claims. It will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the spirit and scope of the utility model, and such modifications and adaptations are intended to be comprehended within the scope of the utility model.

Claims (7)

1. A wheelchair for pregnant and lying-in women, which is characterized in that: comprises a wheelchair body; the wheelchair body comprises a seat plate and a backrest; the bottom of the wheelchair body is provided with a pair of travelling wheels and a pair of steering wheels, and the travelling wheels are provided with brakes; the wheelchair body is provided with a shoulder fixing device;

the shoulder fixing device comprises a U-shaped safety rod, and the U-shaped safety rod is connected with a backrest of the wheelchair body through a rotating shaft, so that the U-shaped safety rod can be turned up and down; the rotating shaft is fixedly sleeved with a ratchet wheel, and the rotating shaft also comprises a pawl which is arranged on the backrest and matched with the ratchet wheel to enable the ratchet wheel to rotate unidirectionally, so that the U-shaped safety rod can only overturn forwards; the handle is connected with the tail end of the pawl through a stay wire, and when the handle is pulled, the pawl is separated from the ratchet wheel.

2. A maternal wheelchair according to claim 1, characterized in that: the rotating shaft is sleeved with a torsion spring, and the pretightening force of the torsion spring is opposite to the unidirectional movement direction of the ratchet wheel.

3. A maternal wheelchair according to claim 1, characterized in that: and the U-shaped safety rod is provided with an armrest.

4. A maternal wheelchair according to claim 1, characterized in that: a torsion spring is also included for urging the pawl against the ratchet.

5. A maternal wheelchair according to claim 1, characterized in that: the U-shaped safety rod is sleeved with a soft bag.

6. A maternal wheelchair according to claim 1, characterized in that: the detachable table plate is arranged on the U-shaped safety rod.

7. A maternal wheelchair according to claim 1, characterized in that: and a limiting device is arranged on the rotating shaft.