U-shaped pillow for hyperbaric oxygen chamber

Abstract

This utility model discloses a U-shaped pillow for hyperbaric oxygen chambers, including a pillow body, a headrest, a rear beam, an extension plate, a swing arm, a connecting bolt, a slider, an adjusting plate, bolts, a spring, and a cotton pillowcase. The pillow body has a rear beam inside, with extension plates connected to both ends. An adjustable swing arm is installed between the extension plates, and the swing arm is connected to the extension plates via a connecting bolt. The connecting bolt and the slider are locked at an angle via teeth and grooves. A spring is installed between the slider and the adjusting plate, and the spring's clamping force is adjusted via bolts. The headrest surface has cushioning and ventilation holes. The pillow body is covered with a cotton pillowcase and filled with sponge. This structure, through the adjustable swing arm and locking mechanism, improves head and neck fit and support stability. The cushioning and ventilation holes and the cotton pillowcase enhance comfort and alleviate stuffiness. The structure is rationally designed, adaptable, and safe.

Description

Technical Field

[0001] This utility model belongs to the field of U-shaped pillow technology, specifically relating to a U-shaped pillow for use in hyperbaric oxygen chambers. Background Technology

[0002] Hyperbaric oxygen chambers are widely used as an adjunct treatment for various hypoxic diseases, improving tissue oxygenation efficiency by providing pure oxygen in a high-pressure environment. During hyperbaric oxygen therapy, patients typically need to remain in a supine position for extended periods, making head and neck support comfort crucial for the treatment experience and safety. Therefore, hyperbaric oxygen chambers are generally equipped with neck pillows, headrests, and other support devices to help stabilize head and neck posture, reduce pressure concentration, and enhance overall comfort.

[0003] Most existing hyperbaric oxygen chamber pillows adopt a one-piece molded ring or U-shaped structure, providing some support for the head and neck through the softness of the material or the wrapping shape. However, the following problems still exist in actual use: First, some structures cannot be effectively adjusted according to the size of the patient's head or neck, resulting in insufficient fit, easy to cause pressure or support position displacement, affecting stability and comfort during treatment; Second, some adjustment mechanisms are simple in structure and lack a stable locking device, which is easy to loosen under head movement or pressure; Third, the breathability and cushioning performance are insufficient, especially in the closed chamber environment, which can easily cause local stuffiness or discomfort. Utility Model Content

[0004] To address the problems existing in the prior art, the purpose of this utility model is to provide a U-shaped pillow for hyperbaric oxygen chambers. This pillow is structurally stable, angle adjustable, and has good fit and cushioning breathability, thus solving the problems of existing pillows in terms of adjustability, fit, and comfort.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a U-shaped pillow for a hyperbaric oxygen chamber, comprising a pillow body, a headrest provided on the rear side of the upper surface of the pillow body, an arc-shaped groove recessed downwards on the top of the headrest, a rear beam embedded in the rear side of the interior of the pillow body, extension plates symmetrically provided at both ends of the rear beam, and a swing arm rotatably installed between the two extension plates on the same side.

[0006] The rear beam has bosses at both ends at the bottom, and the bosses penetrate the lower surface of the pillow body. The inner wall of the rotating mounting hole of the swing arm has symmetrically arranged protrusions. A connecting bolt passes through the swing arm and the extension plate. The surface of the connecting bolt has symmetrically opened grooves that match the protrusions. The angle of the swing arm is limited by controlling the connecting bolt.

[0007] Furthermore, a cotton pillowcase is fitted on the outer side of the rear beam and the limiting swing arm, and the inner side of the cotton pillowcase is filled with sponge.

[0008] Furthermore, the lower end face of the connecting bolt is evenly provided with toothed grooves centered on its axis, the toothed grooves are placed inside the boss, and the top of the connecting bolt is fixed to the swing arm by a snap ring.

[0009] Furthermore, a slider is slidably installed inside the boss, and a groove is symmetrically opened on the inner wall of the boss along the axis. A first convex plate that matches the groove is symmetrically arranged on both sides of the slider surface. The upper end face of the slider is uniformly provided with convex teeth with its axis as the center. The cross-section of the convex teeth is arc-shaped, and the convex teeth correspond to the tooth grooves.

[0010] Furthermore, a bolt is rotatably passed through the bottom of the boss, the bottom of the bolt is flush with the boss, an adjusting plate is screwed onto the surface of the bolt, the adjusting plate is placed inside the boss, and second protruding plates are symmetrically arranged on both sides of the adjusting plate, the second protruding plates sliding inside the groove.

[0011] Furthermore, a spring is placed inside the boss, and the spring is positioned between the slider and the adjusting plate. The spring applies a pushing force to the slider towards the connecting bolt.

[0012] Furthermore, the surface of the headrest is provided with buffer ventilation holes.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention features a headrest attached to the pillow body with cushioning and ventilation holes on its surface. This provides soft support for the head while the patient is lying down. At the same time, the ventilation and heat exchange function of the cushioning and ventilation holes effectively alleviates the stuffiness and discomfort caused by prolonged contact in a hyperbaric oxygen chamber, improves head support comfort, and solves the problems of poor breathability and scalp sweating and dampness caused by long-term use of existing pillows.

[0015] This invention features an adjustable swing arm structure inside the rear beam, combined with the cooperation of connecting bolts, grooves, and protrusions, allowing the swing arm to be stably locked at a specified angle after adjustment. The stable fixation of the swing arm angle is achieved through the cooperation of the protruding teeth and grooves between the slider and the connecting bolt, as well as the spring thrust maintaining the cooperation relationship, preventing loosening and displacement due to external forces during use. This solves the problems of poor stability and easy loosening of the adjustment structure in the prior art.

[0016] This invention, by setting an adjusting plate and a rotating bolt, combined with a sliding groove to restrict its rotational freedom, can precisely adjust the distance between the adjusting plate and the slider, thereby controlling the spring's clamping force and locking tightness. This allows the locking system to meet different force requirements while maintaining flexible adjustment performance, solving the problems of small adjustment range and uncontrollable locking force in traditional devices.

[0017] This invention features a cotton pillowcase on the outer side of the rear beam and swing arm, with sponge filling inside. The cotton fabric is soft, skin-friendly, and breathable, while the sponge filling layer has high elasticity and cushioning properties. It can provide support for the user's head and neck while also reducing pressure, effectively alleviating discomfort caused by prolonged fixed postures and solving the problems of high support hardness and poor fit of existing pillows. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a schematic diagram of the bottom structure of this utility model;

[0020] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0021] Figure 4 This is a schematic diagram of the internal exploded structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the cross-sectional structure of the boss of this utility model;

[0023] Figure 6 This is a schematic diagram of the connecting bolt limiting structure of this utility model.

[0024] The components represented by each number in the attached diagram are listed below: 1. Pillow body; 11. Headrest; 12. Buffer ventilation hole; 2. Rear beam; 21. Extension plate; 22. Boss; 221. Slide groove; 3. Cotton pillowcase; 4. Swing arm; 41. Protrusion; 5. Connecting bolt; 51. Groove; 52. Tooth groove; 6. Slider; 61. Protrusion tooth; 62. First protrusion plate; 7. Bolt; 8. Adjusting plate; 81. Second protrusion plate; 9. Spring. Detailed Implementation

[0025] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0026] refer to Figures 1-6As shown, a U-shaped pillow for a hyperbaric oxygen chamber includes a pillow body 1. A headrest 11 is provided on the rear side of the upper surface of the pillow body 1. The top of the headrest 11 has a downwardly recessed arc-shaped groove. The arc-shaped groove is used to support the occipital bone area of ​​the user to enhance the fit and stability of the pillow body 1. The pillow body 1 has an overall U-shaped structure, with both ends of the U-shaped structure extending around the sides of the user's neck to provide lateral support. A rear beam 2 is embedded in the rear side of the pillow body 1. The rear beam 2 is a load-bearing frame component used to enhance the overall structural strength of the pillow body 1. Extension plates 21 are symmetrically provided at both ends of the rear beam 2. The extension plates 21 extend horizontally towards both sides of the pillow body 1 to form the mounting base of the support mechanism. A swing arm 4 is rotatably installed between the two extension plates 21 on the same side. The swing arm 4 can adjust the opening width to adapt to the support needs of people with different head and neck sizes.

[0027] The bottom ends of the rear beam 2 are provided with bosses 22, which penetrate the lower surface of the pillow body 1. The bosses 22 are used to accommodate the internal sliding and rotating mechanisms for adjustment and locking. The inner wall of the rotating mounting hole of the swing arm 4 is symmetrically provided with protrusions 41, which are positioning structures for controlling the synchronous rotation. A connecting bolt 5 passes through between the swing arm 4 and the extension plate 21, which is used to form a stable rotation axis. The surface of the connecting bolt 5 is symmetrically provided with grooves 51 that are adapted to the protrusions 41. Through the interlocking of the grooves 51 and the protrusions 41, the swing arm 4 can rotate synchronously with the connecting bolt 5 during rotation, preventing the swing arm 4 from spinning freely during adjustment. By controlling the connecting bolt 5 to limit the angle of the swing arm 4, the opening angle of the U-shaped pillow can be effectively adjusted.

[0028] refer to Figure 3 As shown, a cotton pillowcase 3 is fitted on the outer side of the rear beam 2 and the limiting swing arm 4, covering the entire surface of the pillow body 1; the inner side of the cotton pillowcase 3 is filled with sponge, which is used to cushion the pressure on the head and provide a soft touch; the cotton material has good breathability and skin-friendly properties, which can effectively improve the problems of high ambient temperature and easy sweating in the hyperbaric oxygen chamber, and improve the comfort during long-term use.

[0029] Furthermore, the lower end face of the connecting bolt 5 is evenly provided with toothed grooves 52 with its axis as the center; the toothed grooves 52 are located inside the boss 22 and are used to engage with the protruding teeth 61 on the slider 6 for limiting engagement; the engagement structure can stabilize the angle position of the swing arm 4 in the non-adjustment state and prevent angle deviation due to collision or head movement during use; the top of the connecting bolt 5 is fixed to the swing arm 4 by a snap ring; the snap ring structure can prevent the connecting bolt 5 from axial displacement due to vibration or external force during adjustment, thereby improving the overall stability and safety of the structure.

[0030] refer to Figures 4-6As shown, a slider 6 is slidably installed inside the boss 22; the slider 6 is the core structural component for adjustment and locking, which can slide along the axial direction to switch between locked and unlocked states; the inner wall of the boss 22 is symmetrically provided with a sliding groove 221 along the axis, and the two sides of the slider 6 are symmetrically provided with a first protruding plate 62 that matches the sliding groove 221; through the guiding effect of the first protruding plate 62 and the sliding groove 221, the slider 6 can only move along the axial direction during the movement, preventing it from rotating or misaligning; the upper end face of the slider 6 is uniformly provided with protruding teeth 61 with its axis as the center, and the cross-section of the protruding teeth 61 is arc-shaped. The arc-shaped fit allows the connecting bolt 5 to achieve forced disengagement between the tooth groove 52 and the protruding teeth 61 under a specific torque, thereby facilitating the user to manually adjust the angle of the swing arm 4.

[0031] refer to Figures 4-6 As shown, a bolt 7 is rotatably inserted through the bottom of the boss 22. The bolt 7 is the power input component of the adjustment assembly. The bottom of the bolt 7 is flush with the boss 22 to prevent external protrusion from affecting safety. An adjustment plate 8 is screwed onto the surface of the bolt 7. The adjustment plate 8 is placed inside the boss 22 and is used to adjust the distance between it and the slider 6. Second protrusions 81 are symmetrically arranged on both sides of the adjustment plate 8. The second protrusions 81 slide inside the slide groove 221. The slide groove 221 guides and restricts the second protrusions 81, ensuring that the adjustment plate 8 can only move axially. Thus, the locking or releasing operation of the slider 6 can be achieved by rotating the bolt 7, thereby adjusting the locking force of the swing arm 4.

[0032] refer to Figure 6 As shown, a spring 9 is placed inside the boss 22. The spring 9 is an energy element that applies the initial locking thrust. The spring 9 is placed between the slider 6 and the adjusting plate 8. When the structure is closed, it generates elastic force through compression. The direction of the elastic force is towards the connecting bolt 5. The spring 9 applies a thrust to the slider 6 towards the connecting bolt 5, so that the protrusion 61 on the slider 6 and the tooth groove 52 at the lower end of the connecting bolt 5 maintain a continuous meshing state, ensuring that the position of the adjusted swing arm 4 is not easy to loosen, and enhancing the stable support effect of the head and neck during hyperbaric oxygen therapy.

[0033] refer to Figure 1 and Figure 2 As shown, the headrest 11 has buffer ventilation holes 12 on its surface. The buffer ventilation holes 12 are set through the sponge filling layer inside the headrest 11, which can effectively improve the temperature accumulation phenomenon on the surface of the headrest 1. In the high temperature and high humidity environment of the hyperbaric oxygen chamber, the buffer ventilation holes 12 can provide a good air convection channel and improve the heat and moisture exchange capacity. At the same time, the buffer ventilation holes 12 have a certain elastic recovery capacity when the sponge is compressed, thereby providing better pressure relief and cushioning performance, reducing the discomfort of the head caused by continuous pressure.

[0034] The working principle of this utility model is as follows: the pillow body 1 is placed inside the hyperbaric oxygen chamber, the user's head rests on the headrest 11, the buffer ventilation hole 12 can play a buffering and ventilation effect, the two sides of the pillow body 1 are placed on the sides of the head and reach the neck, and the swing angle of the two swing arms 4 is adjusted according to the size of the user's head and neck to control the size of the opening of the U-shaped structure of the pillow body 1, so as to fit the user better.

[0035] The swing arm 4 and the rear beam 2 are connected by a connecting bolt 5. The swing arm 4 and the connecting bolt 5 rotate together through the cooperation of the groove 51 and the convex strip 41. The length of the groove 51 is the same as the thickness of the swing arm 4. The two ends of the connecting bolt 5 are respectively installed on the extension plate 21, and the upper end is fixed by a snap ring so that the connecting bolt 5 can only rotate and prevent it from falling off. Due to the presence of the spring 9, the slider 6 has a pushing force in the direction of the connecting bolt 5. Since the first convex plate 62 slides inside the slide groove 221, the slider 6 cannot rotate as a whole and can only move axially. Then, the connecting bolt 5 is fixed by the cooperation of the convex tooth 61 and the tooth groove 52. When adjusting, the swing arm 4 is turned forcefully. Since the convex tooth 61 is semi-circular, when a large rotational force occurs between the connecting bolt 5 and the slider 6, the tooth groove 52 and the convex tooth 61 can be forced to disengage, thereby realizing the adjustment of the angle of the swing arm 4.

[0036] Since the second convex plate 81 also slides inside the slide groove 221, the adjusting plate 8 cannot rotate. The rotating bolt 7 can adjust the distance between the adjusting plate 8 and the slider 6, thereby adjusting the squeezing force on the spring 9 to control the engagement force between the connecting bolt 5 and the slider 6.

[0037] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A U-shaped pillow for hyperbaric chambers, comprising a pillow body (1), characterized in that: A headrest (11) is provided on the rear side of the upper surface of the pillow body (1). The headrest (11) has a downwardly recessed arc groove at the top. A rear beam (2) is embedded in the rear side of the inside of the pillow body (1). Extension plates (21) are symmetrically provided at both ends of the rear beam (2). A swing arm (4) is rotatably installed between the two extension plates (21) on the same side. The rear beam (2) has bosses (22) at both ends of its bottom. The bosses (22) penetrate the lower surface of the pillow body (1). The inner wall of the rotating mounting hole of the swing arm (4) is symmetrically provided with ridges (41). A connecting bolt (5) passes through the swing arm (4) and the extension plate (21). The surface of the connecting bolt (5) is symmetrically provided with grooves (51) that are adapted to the ridges (41). The angle of the swing arm (4) is limited by controlling the connecting bolt (5).

2. The U-shaped pillow for hyperbaric oxygen chambers according to claim 1, characterized in that: The rear beam (2) and the limiting swing arm (4) are covered with cotton pillowcases (3), and the inside of the cotton pillowcases (3) is filled with sponge.

3. The U-shaped pillow for hyperbaric oxygen chambers according to claim 1, characterized in that: The lower end face of the connecting bolt (5) is evenly provided with toothed grooves (52) with its axis as the center. The toothed grooves (52) are placed inside the boss (22). The top of the connecting bolt (5) is fixed to the swing arm (4) by a snap ring.

4. A U-shaped pillow for a hyperbaric oxygen chamber according to claim 3, characterized in that: The boss (22) has a slider (6) slidably installed inside. The inner wall of the boss (22) is symmetrically provided with a groove (221) along the axis. The slider (6) has a first convex plate (62) symmetrically provided on both sides of the surface that matches the groove (221). The upper end face of the slider (6) is uniformly provided with convex teeth (61) with its axis as the center. The cross section of the convex teeth (61) is arc-shaped. The convex teeth (61) correspond to the tooth groove (52).

5. The U-shaped pillow for hyperbaric oxygen chambers according to claim 4, characterized in that: The bottom of the boss (22) is rotatably penetrated by a bolt (7), the bottom of the bolt (7) is flush with the boss (22), and an adjusting plate (8) is screwed onto the surface of the bolt (7). The adjusting plate (8) is placed inside the boss (22), and a second protruding plate (81) is symmetrically arranged on both sides of the adjusting plate (8). The second protruding plate (81) slides inside the groove (221).

6. The U-shaped pillow for hyperbaric oxygen chambers according to claim 5, characterized in that: A spring (9) is placed inside the boss (22). The spring (9) is positioned between the slider (6) and the adjusting plate (8). The spring (9) applies a pushing force to the connecting bolt (5) on the slider (6).

7. The U-shaped pillow for hyperbaric oxygen chambers according to claim 1, characterized in that: The surface of the headrest (11) is provided with buffer ventilation holes (12).

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