Wheelchair back cushion

Abstract

The utility model provides a wheelchair back cushion. The wheelchair back cushion comprises a connecting part; the connecting part is used for being connected with a backrest of a wheelchair, and an automatic rewinding mechanism and a clamping mechanism are arranged on the connecting part; the automatic rewinding mechanism is arranged on one side of the connecting part, and the clamping mechanism is arranged on the other side of the connecting part; a binding belt is arranged in the automatic rewinding mechanism, and the automatic rewinding mechanism is used for automatically retracting the binding belt; the clamping mechanism is used for clamping the end part of the binding belt, so that the binding belt limits the head of the patient. By arranging the connecting part, the back cushion can be connected with a backrest of a wheelchair, by arranging the automatic rewinding mechanism and the clamping mechanism, a binding belt in the automatic rewinding mechanism can be pulled out and connected with the clamping mechanism in a clamped mode, the automatic rewinding mechanism continuously provides a pulling-back force, and therefore the back cushion can be connected with the wheelchair. Therefore, the head of the patient between the binding belt and the connecting part is limited, medical staff do not need to continuously support the head of the patient, and the medical staff or family members of the patient can use the device more conveniently.

Description

Technical Field

[0001] This utility model relates to the field of wheelchair accessories technology, specifically a wheelchair headrest. Background Technology

[0002] Wheelchairs are widely used in hospital clinical practice, especially for patients who have difficulty moving, such as those with hemiplegia or myasthenia gravis, as well as those with neurological diseases, who all require wheelchairs for mobility.

[0003] Currently, wheelchairs have a basically the same structure, consisting of a seat, backrest, handles, and wheels. For patients with leg problems, existing wheelchairs are sufficient for those with normal upper bodies. However, if a patient has neck weakness, they cannot use existing wheelchairs. Currently, such patients need family members or medical staff to support their heads while in a wheelchair to prevent them from shifting their heads and causing injury. This is inconvenient for medical staff or family members. Therefore, there is a need to propose an accessory that can be used in wheelchairs to help limit the position of the patient's head. Utility Model Content

[0004] The purpose of this invention is to provide a wheelchair headrest to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A wheelchair headrest includes: a connecting portion; the connecting portion is used to connect to the backrest of a wheelchair.

[0007] An automatic rewinding mechanism and a snap-fit ​​mechanism are provided on the connecting part;

[0008] The automatic rewinding mechanism is located on one side of the connecting part, and the snap-fit ​​mechanism is located on the other side of the connecting part;

[0009] The automatic rewinding mechanism is equipped with a strap, which is used to automatically retract the strap; the locking mechanism is used to lock the end of the strap, thereby limiting the strap to the patient's head.

[0010] Optionally, the connecting part is made of soft material, and a socket is provided on the connecting part, through which the connecting part is detachably connected to the back of the wheelchair.

[0011] Optionally, an arc-shaped cushion is provided on the connecting part, the automatic rewinding mechanism is provided on one side of the arc-shaped cushion, and the snap-fit ​​mechanism is provided on the other side of the arc-shaped cushion.

[0012] Optionally, a locking strap is provided on the side of the connecting part where the curved backrest is not installed. The locking strap is used to pull the connecting part closer and tie it after the connecting part is connected to the backrest of the wheelchair to lock the connecting part to the backrest of the wheelchair.

[0013] The locking band is elastic.

[0014] Optionally, the automatic rewinding mechanism includes: a side plate, a rotating shaft, and a rewinding spring;

[0015] The rotating shaft is rotatably connected to the side plate, and the end of the rotating shaft passes through the side plate and extends to the outside of the side plate; one end of the return spring is connected to the end of the rotating shaft, the return spring is fixed to the outside of the side plate and is arranged around the rotating shaft; the return spring is used to drive the rotating shaft to rotate and reset, and is used to automatically retract the binding strap.

[0016] Optionally, a connector is provided at the end of the binding strap; the connector is adapted to the snap-fit ​​mechanism, which is used to snap the connector.

[0017] Compared with the prior art, this utility model provides a wheelchair headrest, including: a connecting part; the connecting part is used to connect with the backrest of the wheelchair, and an automatic rewinding mechanism and a locking mechanism are provided on the connecting part; the automatic rewinding mechanism is located on one side of the connecting part, and the locking mechanism is located on the other side of the connecting part; a tightening strap is provided inside the automatic rewinding mechanism, and the automatic rewinding mechanism is used to automatically retract the tightening strap; the locking mechanism is used to lock the end of the tightening strap, thereby limiting the patient's head. By providing the connecting part, the headrest of this application can be connected to the backrest of the wheelchair. By providing the automatic rewinding mechanism and the locking mechanism, the tightening strap in the automatic rewinding mechanism can be pulled out and locked with the locking mechanism. The automatic rewinding mechanism continuously provides a pulling force, thereby limiting the patient's head located between the tightening strap and the connecting part. Medical staff do not need to continuously support the patient's head. When the patient's head tilts slightly, it can be straightened in time, making it more convenient for medical staff or the patient's family to use. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a wheelchair headrest.

[0019] Figure 2 This is a schematic diagram of the structure of a wheelchair headrest from another perspective.

[0020] Figure 3 This is a schematic diagram of another type of wheelchair headrest.

[0021] Figure 4 This is a schematic diagram of the internal structure of the automatic rewinding mechanism.

[0022] Figure 5 This is a schematic diagram of another automatic rewinding mechanism.

[0023] Figure 6 This is a schematic diagram of another type of automatic rewinding mechanism.

[0024] Figure 7 This is a schematic diagram of the external structure of the automatic rewinding mechanism.

[0025] In the diagram: 1. Connecting part; 2. Automatic rewinding mechanism; 3. Snap-fit ​​mechanism; 4. Binding strap; 5. Socket hole; 6. Curved backrest; 7. Locking strap; 8. Side plate; 9. Rotating shaft; 10. Rewinding spring; 11. Connecting piece. Detailed Implementation

[0026] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0027] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0028] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented without certain specific details. In some instances, methods, means, and elements well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0029] Please see Figure 1-7 In this embodiment of the present invention, a wheelchair headrest includes: a connecting part 1; the connecting part 1 is used to connect with the backrest of a wheelchair, and an automatic rewinding mechanism 2 and a locking mechanism 3 are provided on the connecting part 1; the automatic rewinding mechanism 2 is provided on one side of the connecting part 1, and the locking mechanism 3 is provided on the other side of the connecting part 1; a binding strap 4 is provided inside the automatic rewinding mechanism 2, and the automatic rewinding mechanism 2 is used to automatically retract the binding strap 4; the locking mechanism 3 is used to lock the end of the binding strap 4, thereby limiting the position of the binding strap 4 on the patient's head.

[0030] In this embodiment, the connecting part 1 can be a backrest, with a connecting strap on the back of the backrest. The backrest can be directly connected to the backrest of the wheelchair using the connecting strap. Alternatively, the connecting part 1 can be a cloth strap that can be directly attached to the backrest of the wheelchair. This application does not make specific limitations on the specific structure of the connecting part 1 or its connection with the backrest of the wheelchair. In this embodiment, any structure that can be connected to the backrest of the wheelchair can be used as the connecting part 1.

[0031] In this embodiment, the automatic rewinding mechanism 2 can be directly purchased from the existing car seat belt rewinding mechanism. In this application, the rewinding mechanism is used to rewind and recycle the strap 4. When the wheelchair cushion of this application is not in use, the strap 4 is completely rewound into the automatic rewinding mechanism 2, which makes it easier for users to store or place the wheelchair cushion of this embodiment.

[0032] Furthermore, the locking mechanism 3 can be the same structure as the car seat belt buckle. This application can directly adopt this structure without making any improvements. The improvement of this application is that, in clinical applications, some special patients cannot support their heads normally and need auxiliary support. In this case, the cushion in this embodiment is connected to the back of the wheelchair. Then, the binding strap 4 is used to restrict the patient's head to the side wall of the connecting part 1, avoiding the problem of medical staff having to constantly support the patient's head. Of course, during the use of the solution of this application, the patient's head may still shift. At this time, the medical staff can straighten the patient's head. However, using the technical solution of this application can greatly reduce the time that medical staff need to support the patient's head, thereby reducing the workload of medical staff and making the operation of medical staff more convenient.

[0033] As can be seen, in this embodiment, by setting the connecting part 1, the pillow in this application can be connected to the backrest of the wheelchair. By setting the automatic rewinding mechanism 2 and the locking mechanism 3, the binding strap 4 in the automatic rewinding mechanism 2 can be pulled out and locked with the locking mechanism 3. The automatic rewinding mechanism 2 continuously provides a pulling force, so that the patient's head located between the binding strap 4 and the connecting part 1 is restricted. Medical staff do not need to continuously support the patient's head. When the patient's head tilts slightly, it can be straightened in time, which is more convenient for medical staff or patients' families to use.

[0034] In one specific embodiment, the connecting part 1 is made of soft material, and a socket 5 is provided on the connecting part 1. The connecting part 1 is detachably connected to the backrest of the wheelchair through the socket 5.

[0035] See Figure 1 As shown, a socket 5 is provided, allowing medical staff or family members to adjust the position of the connecting part 1 on the back of the wheelchair according to the patient's actual height to match the position of the patient's head.

[0036] In one specific embodiment, an arc-shaped backrest 6 is provided on the connecting part 1, the automatic retraction mechanism 2 is provided on one side of the arc-shaped backrest 6, and the locking mechanism 3 is provided on the other side of the arc-shaped backrest 6. In this embodiment, in order to further improve the patient's comfort and better adjust the stability of the patient's head positioning, an arc-shaped backrest 6 is provided on the connecting part 1, such as... Figure 1 , Figure 2 As shown, firstly, the curved pillow 6 itself has a certain limiting function, and with the addition of the binding strap 4 in this application, the limiting stability of the patient's head can be further improved.

[0037] In one specific embodiment, a locking strap 7 is provided on the side of the connecting part 1 where the curved backrest 6 is not installed. The locking strap 7 is used to pull the connecting part 1 closer and tie it after the connecting part 1 is connected to the backrest of the wheelchair to lock the connecting part 1 onto the backrest of the wheelchair; the locking strap 7 is elastic.

[0038] In this embodiment, in order to improve the connection stability between the connecting part 1 and the wheelchair backrest, a locking strap 7 is provided on the side of the connecting part 1. After the connecting part 1 is connected to the wheelchair backrest, the locking strap 7 is tightened and knotted, so that the connecting part 1 can be firmly bound to the wheelchair backrest. It can be seen that the technical solution of this embodiment can further improve the connection stability between the connecting part 1 and the wheelchair backrest.

[0039] In one specific embodiment, the automatic rewinding mechanism 2 includes: a side plate 8, a rotating shaft 9, and a rewinding spring 10; the rotating shaft 9 is rotatably connected to the side plate 8, and the end of the rotating shaft 9 passes through the side plate 8 and extends to the outside of the side plate 8; one end of the rewinding spring 10 is connected to the end of the rotating shaft 9, the rewinding spring 10 is fixed to the outside of the side plate 8, and is arranged around the rotating shaft 9; the rewinding spring 10 is used to drive the rotating shaft 9 to rotate and reset, and to automatically retract the binding strap 4.

[0040] In this embodiment, see Figures 4-7 As shown, the function of the return spring 10 is to drive the rotating shaft 9 to rotate. Its outer end is fixed to the side plate 8 to limit the overall position of the return spring 10. The inner end of the return spring 10 is connected to the side of the rotating shaft 9. Specifically, a fixing groove can be opened on the side of the rotating shaft 9 to fix the end of the return spring 10 in the fixing groove. The specific fixing method can be snap-fit ​​or connection through auxiliary parts such as rivets. This application does not limit the method.

[0041] During use, one end of the strap 4 is fixed to the side wall of the rotating shaft 9, such as... Figure 4As shown, pulling the strap 4 extends the neck strap. Since the strap 4 is wrapped around the side wall of the rotating shaft 9, its movement pulls the rotating shaft 9 and rotates the side plate 8. At this time, the return spring 10 at the end of the rotating shaft 9 is compressed. When the end of the strap 4 is released, the return spring 10 automatically returns to its original position, thus rotating the rotating shaft 9 and allowing the strap 4 to continue wrapping around the side wall of the rotating shaft 9. The above principle is the same as the rewinding principle of a seat belt.

[0042] In one specific embodiment, a connector 11 is provided at the end of the binding strap 4; the connector 11 is adapted to the snap-fit ​​mechanism 3, and the snap-fit ​​mechanism 3 is used to snap the connector 11.

[0043] In this embodiment, the locking mechanism 3 and the connector 11 can directly use existing structures, such as the seat belt buckle and the seat belt locking mechanism 3, and this application is not limited thereto. Furthermore, in the technical solution of this application, the connecting mechanism can be a rope with a free end, and the connector 11 can also be a rope with a free end. Tying the two ropes together still achieves the function of using the tightening strap 4 to limit the patient's head, as described in this application. Therefore, the above embodiments only provide a preferred implementation method; users can choose the specific implementation method according to their actual needs.

[0044] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0045] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A wheelchair backrest, characterized in that include: Connecting part (1); the connecting part (1) is used to connect with the backrest of the wheelchair, An automatic rewinding mechanism (2) and a snap-fit ​​mechanism (3) are provided on the connecting part (1); The automatic rewinding mechanism (2) is located on one side of the connecting part (1), and the snap-fit ​​mechanism (3) is located on the other side of the connecting part (1); The automatic rewinding mechanism (2) is equipped with a binding strap (4), which is used to automatically retract the binding strap (4); the snap-fit ​​mechanism (3) is used to snap the end of the binding strap (4), thereby limiting the patient's head with the binding strap (4).

2. The wheelchair backrest according to claim 1, characterized in that The connecting part (1) is made of soft material, and a socket (5) is provided on the connecting part (1). The connecting part (1) is detachably connected to the backrest of the wheelchair through the socket (5).

3. The wheelchair backrest according to claim 1, characterized in that An arc-shaped pillow (6) is provided on the connecting part (1), the automatic rewinding mechanism (2) is provided on one side of the arc-shaped pillow (6), and the snap-fit ​​mechanism (3) is provided on the other side of the arc-shaped pillow (6).

4. The wheelchair backrest according to claim 3, characterized in that A locking strap (7) is provided on the side of the connecting part (1) where the curved backrest (6) is not installed. The locking strap (7) is used to pull the connecting part (1) closer and tie it after the connecting part (1) is connected to the back of the wheelchair to lock the connecting part (1) onto the back of the wheelchair. The locking band (7) is elastic.

5. The wheelchair backrest of claim 1, wherein, The automatic rewinding mechanism (2) includes: a side plate (8), a rotating shaft (9), and a rewinding spring (10); The rotating shaft (9) is rotatably connected to the side plate (8), and the end of the rotating shaft (9) passes through the side plate (8) and extends to the outside of the side plate (8); one end of the rewind spring (10) is connected to the end of the rotating shaft (9), the rewind spring (10) is fixed to the outside of the side plate (8) and is arranged around the rotating shaft (9); the rewind spring (10) is used to drive the rotating shaft (9) to rotate and reset, and is used to automatically retract the binding strap (4).

6. The wheelchair backrest of claim 1, wherein A connector (11) is provided at the end of the binding strap (4); the connector (11) is adapted to the snap-fit ​​mechanism (3), which is used to snap the connector (11).

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