Adjustable neck anteflexion pillow support device

Abstract

The invention discloses an adjustable neck anteflexion pillow support device which comprises a body position pillow and a built-in frame, and the body position pillow comprises a neck pillow part and a limiting head pillow part connected with the neck pillow part; the built-in frame comprises a base, a limiting frame and an unlocking piece, and the base is arranged in the neck pillow part; the limiting frame is pivotally arranged on the base around a horizontal axis, can rotate within a preset angle range and can be selectively locked and fixed at a required position; the unlocking piece is configured to selectively release the locking state between the limiting frame and the base so as to enable the limiting frame to rotate relative to the base shell; the limiting frame is sleeved with the limiting headrest part, so that the angle between the limiting headrest part and the horizontal plane where the neck pillow part is located is adjusted through rotation of the limiting frame. According to the pillow supporting device, the forward bending degree of the neck of a patient can be accurately adjusted, and the postoperative nursing and rehabilitation effects of the patient are improved.

Description

Technical Field

[0001] The invention relates to a medical posture auxiliary device, in particular to an adjustable cervical flexion pillow supporting device. Background Art

[0002] Partial tracheectomy or tracheal reconstruction is a complex surgical procedure mainly used to treat tracheal stenosis, tumors or other airway diseases. This type of surgery involves important structures of the airway, and postoperative management is crucial for the patient's recovery. Among them, maintaining the flexed neck position is a key part of postoperative care and is of great significance for the patient's recovery. The main purpose of the flexed neck position is to reduce tension on the surgical site, promote wound healing, and reduce the risk of anastomotic dehiscence.

[0003] However, although the flexed neck position is essential for the patient's recovery, it is a very challenging task for most patients to maintain this position for a long time. Patients may experience discomfort, pain or muscle fatigue, all of which affect their ability to maintain the correct position. Maintaining the same position for a long time may also lead to other problems, such as neck muscle soreness and back discomfort.

[0004] In order to help patients adapt to the postoperative body position requirements, it is common to perform neck flexion position training before surgery. The purpose of this preoperative training is to make patients familiar with and adapt to this posture, while also enhancing the endurance of related muscle groups. During the training, medical staff will guide patients in the correct posture and gradually increase the time they can maintain this posture. Despite preoperative training, many patients still find it difficult to fully adapt to the postoperative body position requirements. This may be due to a variety of factors, including individual differences, psychological factors, pain levels, and postoperative recovery. Summary of the invention

[0005] The present invention aims to solve one of the technical problems in the related art at least to a certain extent. To this end, the purpose of the present invention is to provide an adjustable cervical flexion pillow support device.

[0006] To achieve the above object, an adjustable cervical flexion pillow support device according to an embodiment of the present invention includes:

[0007] A body positioning pillow, the body positioning pillow comprising a neck pillow portion and a position limiting headrest portion connected to the neck pillow portion;

[0008] A built-in frame, the built-in frame comprising a base, a limit frame and an unlocking member, the base being arranged inside the neck pillow portion;

[0009] The limiting frame is pivotally arranged on the base around a horizontal axis, and is configured to be able to rotate within a predetermined angle range and selectively lock and fix at a desired position;

[0010] The unlocking member is configured to selectively release the locking state between the limiting frame and the base, so that the limiting frame can rotate relative to the base shell;

[0011] Wherein, the position-limiting headrest portion is sleeved on the outside of the position-limiting frame, so that the angle between the position-limiting headrest portion and the horizontal plane where the neck rest portion is located can be adjusted by rotating the position-limiting frame.

[0012] The adjustable cervical flexion pillow support device provided according to an embodiment of the present invention comprises a body position pillow and a built-in frame, wherein the body position pillow is composed of a cervical pillow part and a limiting headrest part, and the built-in frame is composed of a base, a limiting frame and an unlocking member. The limiting frame can be rotated and locked within a predetermined angle range, and its position can be flexibly adjusted by the unlocking member. This design enables the limiting headrest part to change the angle between it and the horizontal plane where the cervical pillow part is located as the limiting frame rotates, thereby realizing the precise adjustment of the degree of cervical flexion of the patient. This not only improves the patient's ability and comfort to maintain the correct body position, but also allows the flexion angle to be flexibly adjusted according to the rehabilitation process, greatly improving the patient's postoperative care and rehabilitation effect. At the same time, this adjustability also enables the device to adapt to the physical characteristics and rehabilitation stages of different patients, improving the universality and effectiveness of its clinical application. It provides a more humane and scientific solution for the body position management after tracheal surgery, which can improve the patient's rehabilitation quality and quality of life.

[0013] In addition, the adjustable cervical flexion pillow support device according to the above embodiment of the present invention may also have the following additional technical features:

[0014] According to one embodiment of the present invention, the limiting frame comprises:

[0015] Two arms, one of the two arms is pivotally connected to one end of the base, and the other of the two arms is pivotally connected to the other end of the base;

[0016] A connecting rod is connected between the two supporting arms and is located in the position limiting headrest portion to provide support for the position limiting headrest portion.

[0017] According to one embodiment of the present invention, two ends of the base are respectively provided with horizontally extending pivot holes, the pivot holes have a first tooth surface, and the first tooth surface has a plurality of first tooth portions arranged at intervals around the axis of the pivot hole;

[0018] The unlocking member includes two end face gears and a pushing member, the two end face gears correspond to the two pivot holes one by one, each end face gear is coaxially arranged in the corresponding pivot hole, and the end face gear has a second tooth surface facing the first tooth surface, the second tooth surface is provided with a plurality of second tooth portions arranged at intervals around the axis of the pivot hole, and the second tooth portions are meshed with the first tooth portions, so that the end face gear and the base are relatively fixed in the circumferential direction;

[0019] The pushing member is movably disposed on the base and can be operated by a user to push the end face gear to move along the axis direction of the pivot hole in a direction away from the first tooth surface, so that the second tooth surface is separated from the first tooth surface;

[0020] The support arm has a rotating shaft portion, which is pivotally connected to the pivot hole and fixed relative to the end face gear in the circumferential direction.

[0021] According to one embodiment of the present invention, the unlocking member also includes two first elastic members, and the two first elastic members correspond one-to-one to the two pivot holes. Each first elastic member is arranged in the corresponding pivot hole, and one end of the first elastic member is against the rotating shaft portion, and the other end of the first elastic member is opposite to the end face gear, so that the second tooth surface remains meshed with the first tooth surface.

[0022] According to one embodiment of the present invention, the base further has a connecting hole and a sliding hole, the connecting hole is located between the two pivot holes and is coaxially arranged to connect the two pivot holes, and the sliding hole intersects the connecting hole perpendicularly;

[0023] Each of the end face gears has a rod portion, the rod portion extends into the connecting hole and is slidable, and one end of the rod portion away from the second tooth surface is provided with a conical surface;

[0024] The pushing member includes a push rod, which is slidably disposed in the slide hole, and one end of the push rod is located at the neck pillow portion for operation by the user, and the other end of the rod portion extends into the connecting hole and has a symmetrical first driving inclined surface and a second driving inclined surface;

[0025] When the push rod is pressed and moves into the connecting hole, the first driving bevel is pressed against the conical surface of the rod of one of the two end face gears, and the second driving bevel is pressed against the conical surface of the rod of the other of the two end face gears, so that the two rods respectively push the two end face gears away from the first tooth surface.

[0026] According to one embodiment of the present invention, the pushing member also includes a second elastic member, which is arranged between the base and the push rod to provide an elastic force to force the push rod to stay away from the connecting hole when there is no other external force involved, so that the first driving bevel and the second driving bevel are separated from the cone.

[0027] According to one embodiment of the present invention, the base is also provided with a pin hole, the push rod is provided with a strip hole, a limit pin is provided in the pin hole, and the limit pin extends into the strip hole to limit the sliding distance of the push rod through the cooperation between the limit pin and the strip hole.

[0028] According to an embodiment of the present invention, the face gear is provided with a plug hole coaxially arranged with the pivot hole, and the plug hole is a non-circular hole;

[0029] The support arm is provided with an inserting portion, which is inserted into the inserting hole and matched with the inserting hole, so that the support arm and the end face gear are relatively fixed in the circumferential direction.

[0030] According to one embodiment of the present invention, the rotating shaft portion is formed as a hollow annular structure, and the end of the annular structure away from the support arm has a radially protruding clamping edge, and the inner wall of the pivot hole is provided with an annular clamping groove, and the clamping edge is clamped in the annular clamping groove and can rotate circumferentially.

[0031] According to an embodiment of the present invention, the annular platform structure has an axially cut cutout, so that the annular platform structure can be deformed in the radial direction and inserted into the pivot hole.

[0032] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0034] Figure 1 2 is a schematic structural diagram of an adjustable cervical flexion pillow support device according to an embodiment of the present invention;

[0035] Figure 2 is an exploded view of an adjustable cervical flexion pillow support device according to an embodiment of the present invention;

[0036] Figure 31 is a schematic structural diagram of an adjustable cervical flexion pillow support device (including internal structure) according to an embodiment of the present invention;

[0037] Figure 4 is a side view of a built-in frame in an adjustable cervical flexion pillow support device according to an embodiment of the present invention;

[0038] Figure 5 yes Figure 4 Sectional view at AA in the middle;

[0039] Figure 6 yes Figure 4 Sectional view at the middle BB (rotated 90°);

[0040] Figure 7 It is an exploded view of the built-in frame in the adjustable cervical flexion pillow support device according to an embodiment of the present invention.

[0041] Reference numerals:

[0042] 10. Posture pillow;

[0043] 101, cervical occipital region;

[0044] 102. Position-limiting headrest;

[0045] 20. Built-in shelf;

[0046] 201, base;

[0047] 2011, first tooth section;

[0048] H201, pivot hole;

[0049] H202, sliding hole;

[0050] H203, pin hole;

[0051] H204, connecting hole;

[0052] S201, first tooth surface;

[0053] 202, limit frame;

[0054] 2021, shaft part;

[0055] 2022, plug-in unit;

[0056] 2023, card edge;

[0057] 203. Unlocking parts;

[0058] 2031, face gear;

[0059] 2031a, rod;

[0060] 2031b, second tooth portion;

[0061] S203, second tooth surface;

[0062] S2031, conical surface;

[0063] H2031, socket;

[0064] 2032, putter;

[0065] H2032, strip hole;

[0066] S2032, first driving inclined surface;

[0067] S2033, second driving inclined surface;

[0068] 2033, a first elastic member;

[0069] 2034, a second elastic member;

[0070] 204. Metal shaped hose.

[0071] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0072] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but are not to be construed as limiting the present invention. All other embodiments obtained by ordinary technicians in the field without creative work based on the embodiments of the present invention are within the scope of protection of the present invention.

[0073] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “circumferential”, “radial”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0074] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0075] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0076] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0077] The adjustable cervical flexion pillow support device according to an embodiment of the present invention will be described in detail below with reference to the accompanying drawings.

[0078] Reference Figures 1 to 7 As shown, the adjustable cervical flexion pillow support device provided according to an embodiment of the present invention includes a body positioning pillow 10 and a built-in frame 20.

[0079] Specifically, the positioning pillow 10 includes a cervical pillow portion 101 and a limiting headrest portion 102 connected to the cervical pillow portion 101. The cervical pillow portion 101 is designed as an ergonomic arc structure and can be worn around the patient's neck. The cervical pillow portion 101 can be made of soft materials such as high-density memory foam and latex, and the surface is covered with soft and breathable medical-grade fabric. This design can not only provide comfortable support for the patient's neck, but also effectively disperse pressure and reduce the discomfort that may be caused by long-term use. The limiting headrest portion 102 is connected to the cervical pillow portion 101 and can be made of the same or similar material as the cervical pillow portion 101. Preferably, its hardness is slightly higher than that of the cervical pillow portion 101 to provide a better head limiting and fixing effect. The surface of the limiting headrest portion 102 is also covered with soft and breathable medical-grade fabric, and anti-allergic treatment is used in the area in direct contact with the skin to ensure safety and comfort for long-term use.

[0080] The built-in frame 20 includes a base 201, a limit frame 202 and an unlocking member 203. The base 201 is arranged inside the neck pillow 101. The base 201 can be made of an engineering plastic material with a certain structural strength to ensure overall strength and stability. Preferably, the base 201 is embedded in the neck pillow 101 by injection molding to form a whole with the neck pillow 101 to ensure that no relative displacement occurs during use.

[0081] The limit frame 202 is pivotally arranged on the base 201 around a horizontal axis, and is configured to be able to rotate within a predetermined angle range and selectively lock and fix at a desired position. The limit frame 202 is made of a lightweight material such as plastic or aluminum alloy with a certain structural strength. The limit frame 202 is pivotally connected to the base 201, and can freely rotate around the horizontal axis. In addition, the limit frame 202 and the base 201 can form a multi-angle positioning, so that the limit frame 202 can be rotated to different angle positions.

[0082] The unlocking member 203 is configured to selectively release the locking state between the limiting frame 202 and the base 201, so that the limiting frame 202 can rotate relative to the base 201. In other words, the unlocking member 203 can realize the control of the pivoting state between the limiting frame 202 and the base 201. When the angle needs to be adjusted, the locking state can be temporarily released by operating the unlocking member 203, so that the limiting frame 202 can rotate relative to the base 201.

[0083] The position-limiting headrest 102 is sleeved on the outside of the position-limiting frame 202, so as to adjust the angle between the position-limiting headrest 102 and the horizontal plane where the neck pillow 101 is located by rotating the position-limiting frame 202. For example, a groove matching the shape of the position-limiting frame 202 is provided inside the position-limiting headrest 102, and the position-limiting frame 202 can be accurately embedded in the groove. This ensures that the position-limiting headrest 102 and the position-limiting frame 202 are combined into one body, and can change the angle as the position-limiting frame 202 rotates.

[0084] When the flexion angle of the neck needs to be adjusted, the user only needs to operate (e.g., press) the unlocking member 203 with one hand, and use the other hand to hold the limiting headrest 102 to adjust the angle. Once the desired angle is reached, the unlocking member 203 is released, and the limiting frame 202 is automatically fixed at the current position.

[0085] The following briefly describes the use process of the adjustable cervical flexion pillow support device.

[0086] First, the medical staff will determine the initial cervical flexion angle according to the patient's specific conditions and nursing requirements. Press the unlocking member 203 and adjust the angle of the limiting headrest 102 until the preset angle is reached. After the adjustment is completed, release the unlocking member 203 to lock the limiting frame 202 in this position.

[0087] After the adjustment is completed, the adjustable cervical flexion pillow support device is worn on the patient's neck, wherein the cervical pillow portion 101 is sleeved on the patient's neck, and the patient's head is placed on the position-limiting headrest portion 102. At this time, under the restriction of the position-limiting headrest portion 102, the patient's neck will naturally form a preset flexion angle.

[0088] As the patient's recovery progresses, the angle of the neck flexion can be gradually adjusted. Medical staff will regularly evaluate the patient's condition to determine whether the angle needs to be adjusted. If adjustment is required, repeat the initial adjustment steps to adjust the limited headrest portion 102 to a new angle, such as gradually increasing the angle between the limited headrest portion 102 and the horizontal plane where the neck pillow portion 101 is located.

[0089] Medical staff will conduct an assessment. If the patient has achieved the recovery expectations and no longer needs position restrictions, the device can be stopped and the patient can return to the normal position.

[0090] The adjustable cervical flexion pillow support device provided according to an embodiment of the present invention comprises a body position pillow 10 and a built-in frame 20, wherein the body position pillow 10 is composed of a cervical pillow portion 101 and a limiting headrest portion 102, and the built-in frame 20 is composed of a base 201, a limiting frame 202 and an unlocking member 203. The limiting frame 202 can be rotated and locked within a predetermined angle range, and its position can be flexibly adjusted by the unlocking member 203. This design enables the limiting headrest portion 102 to change the angle between it and the horizontal plane where the cervical pillow portion 101 is located as the limiting frame 202 rotates, thereby achieving precise adjustment of the degree of cervical flexion of the patient. This not only improves the patient's ability and comfort to maintain the correct body position, but also allows the flexion angle to be flexibly adjusted according to the rehabilitation process, greatly improving the patient's postoperative care and rehabilitation effect. At the same time, this adjustability also enables the device to adapt to the physical characteristics and rehabilitation stages of different patients, improving the universality and effectiveness of its clinical application. It provides a more humane and scientific solution for the body position management after tracheal surgery, which can improve the patient's rehabilitation quality and quality of life.

[0091] Reference Figure 7 As shown, in one embodiment of the present invention, the limiting frame 202 includes two arms and a connecting rod, one of the two arms is pivotally connected to one end of the base 201, and the other of the two arms is pivotally connected to the other end of the base 201. The connecting rod is connected between the two arms, and the connecting rod is located in the limiting headrest portion 102 to provide support for the limiting headrest portion 102.

[0092] In this embodiment, the limiting frame 202 is composed of two arms and a connecting rod, for example, the connecting rod is connected to the top of the two arms to form a U-shaped frame. The limiting frame 202 of this structure can not only play a good supporting and limiting role, but also reduce the internal space occupied by the limiting headrest 102, ensuring the softness and comfort of the limiting headrest 102. In addition, the two arms are pivotally connected to the two ends of the base 201 respectively, which ensures the reliability and stability of the pivoting of the limiting frame 202, thereby achieving more precise and stable angle adjustment.

[0093] Reference Figures 5 to 7 As shown, in some embodiments of the present invention, a horizontally extending pivot hole H201 is respectively provided at both ends of the base 201, and the pivot hole H201 has a first tooth surface S201 therein, and the first tooth surface S201 has a plurality of first tooth portions 2011 arranged at intervals around the axis of the pivot hole H201. For example, the pivot hole H201 is a blind hole, and one end of the pivot hole H201 passes through the end surface of the base 201, and the first tooth surface S201 is located at the bottom surface of the hole at the other end of the pivot hole H201.

[0094] The unlocking member 203 includes two end face gears 2031 and a pushing member. The two end face gears 2031 correspond to the two pivot holes H201 one by one. Each end face gear 2031 is coaxially arranged in the corresponding pivot hole H201, and the end face gear 2031 has a second tooth surface S203 facing the first tooth surface S201. The second tooth surface S203 is provided with a plurality of second tooth portions 2031b arranged at intervals around the axis of the pivot hole H201. The second tooth portion 2031b is meshed with the first tooth portion 2011 to fix the end face gear 2031 relative to the base 201 in the circumferential direction.

[0095] The end face gear 2031 is made of high-strength engineering plastic or metal material. The second tooth surface S203 on the end face gear 2031 is used to cooperate with the first tooth surface S201. A plurality of second tooth portions 2031b are distributed on the second tooth surface S203, and the design of these second tooth portions 2031b is completely matched with the first tooth portion 2011 on the first tooth surface S201. When the first tooth portion 2011 on the first tooth surface S201 is meshed with the second tooth portion 2031b on the second tooth surface S203, the end face gear 2031 forms a circumferential fixed state with the base 201, thereby realizing the locking function.

[0096] The pusher is movably disposed on the base 201, and can be operated by a user to push the end face gear 2031 to move in a direction away from the first tooth surface S201 along the axis direction of the pivot hole, so that the second tooth surface S203 is separated from the first tooth surface S201. The pusher can be connected to the end face gear 2031 through a linkage structure, for example, a linkage relationship is formed between the pusher and the end face gear 2031 through a wedge structure. When the user presses the pusher, the wedge structure will act on the two end face gears 2031 at the same time, pushing them away from the first tooth surface S201 along the axis direction of the pivot hole H201, ensuring that the gears on both sides can be unlocked synchronously.

[0097] The support arm has a shaft portion 2021, which is pivotally connected to the pivot hole H201 and fixed relative to the end face gear 2031 in the circumferential direction. The shaft portion 2021 is precisely matched with the pivot hole H201 to form a pivot connection. At the same time, the shaft portion 2021 can also be fixed relative to the end face gear 2031 in the circumferential direction by using a keyway or other fixing method. This design ensures that when the end face gear 2031 is locked with the base 201, the support arm is also fixed at the same time; when unlocked, the support arm can rotate freely.

[0098] The entire locking and unlocking process is as follows: Under normal use, the second tooth surface S203 of the end face gear 2031 is tightly meshed with the first tooth surface S201 in the pivot hole H201 of the base 201, and the support arm is maintained at the set angle position by being fixed to the end face gear 2031. When the angle needs to be adjusted, the user only needs to lightly press the pusher, and the pusher will drive the two end face gears 2031 to move outward at the same time, so that the second tooth surface S203 is separated from the first tooth surface S201. At this time, the support arm can rotate freely, and the user can adjust to the desired new angle. Reset the pusher, and the end face gear 2031 will return to its original position and re-mesh with the first tooth surface S201 of the base 201, thereby locking the support arm in the new position.

[0099] The above structural design provides extremely high adjustment accuracy. The first tooth surface S201 and the second tooth surface S203 allow each adjustment to be accurate to a small angle increment. Moreover, the meshing between the first tooth surface S201 and the second tooth surface S203 provides a strong fixing force to keep the angle stable. In addition, the unlocking operation is simple and intuitive, and only requires operating the pusher to complete it. The design of the entire mechanism is compact and can be well integrated into the entire pillow support device without affecting the appearance and comfort.

[0100] Reference Figures 5 to 7 As shown, in one embodiment of the present invention, the unlocking member 203 also includes two first elastic members 2033, and the two first elastic members 2033 correspond to the two pivot holes H201 one by one. Each of the first elastic members 2033 is arranged in the corresponding pivot hole H201, and one end of the first elastic member 2033 is against the rotating shaft portion 2021, and the other end of the first elastic member 2033 is opposite to the end face gear 2031, so that the second tooth surface S203 remains meshed with the first tooth surface S201.

[0101] In actual operation, when the user needs to adjust the angle, he only needs to press the pusher. The pusher will overcome the force of the first elastic member 2033 and push the end face gear 2031 away from the first tooth surface S201. Once the desired angle is adjusted and the pusher is released, the first elastic member 2033 will immediately push the end face gear 2031 back to its original position, so that the second tooth surface S203 re-engages with the first tooth surface S201, thereby locking the new angle position. The whole process is fast and smooth, and no additional operating steps are required.

[0102] In this embodiment, the design of the first elastic member 2033 ensures that the second tooth surface S203 and the first tooth surface S201 always maintain a tight meshing state when there is no other external force involved. This continuous meshing pressure greatly reduces the risk of accidental unlocking due to vibration or external force, and improves the safety and reliability of the entire device during use. At the same time, the presence of the first elastic member 2033 makes the locking and unlocking process smoother and more controllable. When the user operates the push member to unlock, the first elastic member 2033 will generate a moderate reaction force, which will not make unlocking difficult, but also provide clear tactile feedback for the operation, which can help the user accurately judge whether the unlocking action is completed.

[0103] Reference Figure 6 to Figure 7 As shown, in one embodiment of the present invention, the base 201 further has a connecting hole H204 and a sliding hole H202, wherein the connecting hole H204 is located between the two pivot holes H201 and is coaxially arranged to connect the two pivot holes H201 to form a channel that runs through the base 201. The sliding hole H202 intersects the connecting hole H204 perpendicularly to form a "T"-shaped internal channel structure, and this structural design allows the pusher to move in a direction perpendicular to the connecting hole H204.

[0104] Each of the end face gears 2031 has a rod portion 2031a, and the rod portion 2031a extends into the connecting hole H204 and is slidable. A conical surface S2031 is provided at one end of the rod portion 2031a away from the second tooth surface S203.

[0105] The push member includes a push rod 2032, which is slidably disposed in the slide hole H202, and one end of the push rod 2032 is located in the neck pillow portion 101 for user operation. For example, one end of the push rod 2032 forms a button or handle that is easy to operate, and the user can easily press or pull it. The other end of the rod portion 2031a extends into the connecting hole H204 and has a symmetrical first driving inclined surface S2032 and a second driving inclined surface S2033. The angles of the first driving inclined surface S2032 and the second driving inclined surface S2033 match the angle of the conical surface S2031 of the rod portion 2031a on the end gear 2031, forming a precise wedge-shaped mechanism.

[0106] When the push rod 2032 is pressed and moves into the connecting hole H204, the first driving bevel S2032 is pressed against the conical surface S2031 of the rod portion 2031a of one of the two end face gears 2031, and the second driving bevel S2033 is pressed against the conical surface S2031 of the rod portion 2031a of the other of the two end face gears 2031, so that the two rod portions 2031a respectively push the two end face gears 2031 away from the first tooth surface S201.

[0107] In actual use, when the user needs to adjust the angle of the device, he only needs to press the push rod 2032. As the push rod 2032 moves into the connecting hole H204, the first driving inclined surface S2032 and the second driving inclined surface S2033 at its end will contact the conical surface S2031 of the rod portion 2031a of the two end face gears 2031 at the same time. Due to the design of the inclined surface, this contact will generate a component force to both sides, pushing the two end face gears 2031 to move outward at the same time. This movement causes the second tooth surface S203 of the end face gear 2031 to separate from the first tooth surface S201 of the base 201, thereby achieving unlocking.

[0108] The above structural design realizes the unlocking action of both sides in full synchronization, and through the wedge mechanism, a small input force can generate a large output force, making the unlocking operation easy and simple. At the same time, the wedge mechanism is completely encapsulated inside the base 201, which greatly improves the safety and durability of the device, and also makes the appearance more concise and beautiful. In addition, the wedge mechanism has a simple structure and reliable and stable driving.

[0109] Reference Figure 6 to Figure 7 As shown, in one embodiment of the present invention, the pushing member also includes a second elastic member 2034, which is arranged between the base 201 and the push rod 2032 to provide an elastic force to force the push rod 2032 to stay away from the connecting hole H204 when there is no other external force involved, so that the first driving bevel S2032 and the second driving bevel S2033 are separated from the cone.

[0110] When no external force acts on the push rod 2032, the second elastic member 2034 will always generate a force to push the push rod 2032 away from the connecting hole H204. This design ensures that in normal use, the first driving inclined surface S2032 and the second driving inclined surface S2033 of the push rod 2032 can maintain a separation state from the conical surface S2031 of the rod portion 2031a of the end face gear 2031. This separation state ensures the reliability and stability of the locking between the end face gear 2031 and the base 201.

[0111] When the angle needs to be adjusted, the force of the second elastic member 2034 needs to be overcome to push the push rod 2032. This design provides a clear tactile feedback, and the user can clearly feel that he is performing the unlocking operation. At the same time, once the push rod 2032 is released, the second elastic member 2034 will immediately restore it to its initial position. This rapid reset action facilitates the rapid switching between unlocking and locking, improves the convenience of operation, and improves the reliability of the locked state.

[0112] Reference Figure 7 As shown, in one embodiment of the present invention, the base 201 is further provided with a pin hole H203, the push rod 2032 is provided with a strip hole H2032, a limit pin is provided in the pin hole H203, and the limit pin extends into the strip hole H2032 to limit the sliding distance of the push rod 2032 through the cooperation between the limit pin and the strip hole H2032.

[0113] With the above structure, the push rod 2032 can reciprocate within a limited distance under the guidance of the limit pin. The length of the bar hole H2032 determines the maximum distance that the push rod 2032 can slide, and the limit pin ensures that the push rod 2032 always remains within the predetermined motion trajectory. In this way, by limiting the sliding distance of the push rod 2032, functional failure caused by excessive operation can be effectively prevented. In addition, this design improves the accuracy of operation. The operator can clearly perceive the starting point and end point of the movement of the push rod 2032. This clear tactile feedback helps to more accurately control the unlocking and locking states, and improve the reliability and accuracy of the operation control.

[0114] Reference Figures 5 to 7 As shown, in one embodiment of the present invention, the end face gear 2031 is provided with a plug hole H2031 coaxially arranged with the pivot hole H201, and the plug hole H2031 is a non-circular hole. The support arm is provided with a plug portion 2022, and the plug portion 2022 is inserted into the plug hole H2031 and matched with the plug hole H2031, so that the support arm and the end face gear 2031 are relatively fixed in the circumferential direction.

[0115] When the plug-in portion 2022 is inserted into the plug-in hole H2031, the close fit between the two ensures that the support arm and the end face gear 2031 are relatively fixed in the circumferential direction. This design of the non-circular plug-in structure can make the assembly between the support arm and the end face gear 2031 simpler and more convenient. At the same time, due to the characteristics of the non-circular shape, this connection method has a strong torsion resistance, ensuring that the support arm and the end face gear 2031 are relatively fixed in the circumferential direction more reliably.

[0116] Reference Figure 7As shown, in one embodiment of the present invention, the shaft portion 2021 is formed as a hollow annular structure, and the end of the annular structure away from the support arm has a radially protruding clamping edge 2023, and the inner wall of the pivot hole H201 is provided with an annular clamping groove, and the clamping edge 2023 is clamped in the annular clamping groove and can rotate circumferentially.

[0117] In this embodiment, the engagement of the clamping edge 2023 and the annular clamping groove forms a rotating structure. The clamping edge 2023 is firmly locked in the annular clamping groove. This design ensures that the rotating shaft portion 2021 will not be disengaged when bearing a load, while allowing it to rotate freely in the clamping groove. This design achieves a balance between stability and flexibility, allowing the arm to easily adjust the angle in all directions while remaining stable at any position. In addition, this pivot connection structure has a simple structure and is easy to maintain and disassemble.

[0118] Preferably, the ring stage structure has an axial cutout so that the ring stage structure can deform radially and be inserted into the pivot hole H201. When installing, the operator can slightly compress the ring stage to temporarily reduce its diameter so that it can be smoothly inserted into the pivot hole H201. Once the insertion is completed, the ring stage will return to its original shape due to its own elasticity and fit tightly against the inner wall of the pivot hole H201. The clamping edge 2023 can cooperate with the clamping groove to achieve pivotal connection assembly. By allowing the ring stage structure to deform, the assembly process is greatly simplified.

[0119] Reference Figures 2 to 4 and Figure 7 As shown, in some embodiments of the present invention, a metal shaping hose 204 is further provided at the bottom of the base 201, and the metal shaping hose 204 is located in the neck pillow portion 101 and extends along the extension direction of the neck pillow portion 101. Such a metal shaping hose 204 can facilitate the user to bend and adjust the curvature of the neck pillow portion 101, so that it has a better fit with the user's neck, thereby improving the wearing comfort. In addition, the metal shaping hose 204 can also enhance the integrity and combination reliability between the entire built-in frame 20 and the body pillow 10.

[0120] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0121] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. An adjustable cervical flexion pillow support device, the other features of which are: A body positioning pillow, the body positioning pillow comprising a neck pillow portion and a position limiting headrest portion connected to the neck pillow portion; A built-in frame, the built-in frame comprising a base, a limit frame and an unlocking member, the base being arranged inside the neck pillow portion; The limiting frame is pivotally arranged on the base around a horizontal axis, and is configured to be able to rotate within a predetermined angle range and selectively lock and fix at a desired position; The unlocking member is configured to selectively release the locking state between the limiting frame and the base, so that the limiting frame can rotate relative to the base shell; Wherein, the position-limiting headrest portion is sleeved on the outside of the position-limiting frame, so that the angle between the position-limiting headrest portion and the horizontal plane where the neck rest portion is located can be adjusted by rotating the position-limiting frame.

2. The adjustable cervical flexion pillow support device according to claim 1, characterized in that: The limiting frame comprises: Two arms, one of the two arms is pivotally connected to one end of the base, and the other of the two arms is pivotally connected to the other end of the base; A connecting rod is connected between the two supporting arms and is located in the position limiting headrest portion to provide support for the position limiting headrest portion.

3. The adjustable cervical flexion pillow support device according to claim 2, characterized in that: The two ends of the base are respectively provided with horizontally extending pivot holes, the pivot holes have a first tooth surface, and the first tooth surface has a plurality of first tooth portions arranged at intervals around the axis of the pivot hole; The unlocking member includes two end face gears and a pushing member, the two end face gears correspond to the two pivot holes one by one, each end face gear is coaxially arranged in the corresponding pivot hole, and the end face gear has a second tooth surface facing the first tooth surface, the second tooth surface is provided with a plurality of second tooth portions arranged at intervals around the axis of the pivot hole, and the second tooth portions are meshed with the first tooth portions, so that the end face gear and the base are relatively fixed in the circumferential direction; The pushing member is movably disposed on the base and can be operated by a user to push the end face gear to move along the axis direction of the pivot hole in a direction away from the first tooth surface, so that the second tooth surface is separated from the first tooth surface; The support arm has a rotating shaft portion, which is pivotally connected to the pivot hole and fixed relative to the end face gear in the circumferential direction.

4. The adjustable cervical flexion pillow support device according to claim 3, characterized in that: The unlocking member also includes two first elastic members, and the two first elastic members correspond to the two pivot holes one by one. Each first elastic member is arranged in the corresponding pivot hole, and one end of the first elastic member is against the rotating shaft portion, and the other end of the first elastic member is opposite to the end face gear, so that the second tooth surface remains meshed with the first tooth surface.

5. The adjustable cervical flexion pillow support device according to claim 3, characterized in that: The base also has a connecting hole and a sliding hole, wherein the connecting hole is located between the two pivot holes and is coaxially arranged to connect the two pivot holes, and the sliding hole intersects the connecting hole perpendicularly; Each of the end face gears has a rod portion, the rod portion extends into the connecting hole and is slidable, and one end of the rod portion away from the second tooth surface is provided with a conical surface; The pushing member includes a push rod, which is slidably disposed in the slide hole, and one end of the push rod is located at the neck pillow portion for operation by the user, and the other end of the rod portion extends into the connecting hole and has a symmetrical first driving inclined surface and a second driving inclined surface; When the push rod is pressed and moves into the connecting hole, the first driving bevel is pressed against the conical surface of the rod of one of the two end face gears, and the second driving bevel is pressed against the conical surface of the rod of the other of the two end face gears, so that the two rods respectively push the two end face gears away from the first tooth surface.

6. The adjustable cervical flexion pillow support device according to claim 5, characterized in that: The push member also includes a second elastic member, which is arranged between the base and the push rod to provide an elastic force to force the push rod to stay away from the connecting hole when there is no other external force involved, so that the first driving bevel and the second driving bevel are separated from the cone.

7. The adjustable cervical flexion pillow support device according to claim 5, characterized in that: The base is also provided with a pin hole, the push rod is provided with a strip hole, a limit pin is provided in the pin hole, and the limit pin extends into the strip hole to limit the sliding distance of the push rod through the cooperation between the limit pin and the strip hole.

8. The adjustable cervical flexion pillow support device according to claim 3, characterized in that: The end face gear is provided with a plug hole coaxially arranged with the pivot hole, and the plug hole is a non-circular hole; The support arm is provided with an inserting portion, which is inserted into the inserting hole and matched with the inserting hole, so that the support arm and the end face gear are relatively fixed in the circumferential direction.

9. The adjustable cervical flexion pillow support device according to claim 8, characterized in that: The rotating shaft portion is formed as a hollow annular structure, and the end of the annular structure away from the support arm has a radially protruding clamping edge, and the inner wall of the pivot hole is provided with an annular clamping groove, and the clamping edge is clamped in the annular clamping groove and can rotate circumferentially.

10. The adjustable cervical flexion pillow support device according to claim 9, characterized in that: The ring stage structure has an axially cut cutout so that the ring stage structure can be deformed in the radial direction and inserted into the pivot hole.

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