Air path structure with protective sleeve and mattress

Abstract

The utility model relates to a kind of air path structure and mattress with protective sleeve.The existing air pipe exists unreliable connection situation.The utility model includes with the air nozzle of preset space intercommunication and with the air pipe of air nozzle connection, the protective sleeve of twistable deformation is sleeved on the air pipe, the port of the protective sleeve is equipped with snap ring, the protective sleeve is sleeved on the air pipe, the snap ring is clamped with the air nozzle the corresponding pipe mouth of the air pipe, to make air pipe and air nozzle firmly connected and keep unobstructed.In air pipe, the protective sleeve is sleeved, and the corresponding pipe mouth of air pipe is clamped by snap ring and corresponding air nozzle cooperation, both can improve the connection reliability of pipe mouth and air nozzle, and also can use protective sleeve to bear deformation force, prevent air pipe from being stretched, also can use protective sleeve to maintain air pipe profile, ensure air flow unobstructed, improve use experience.

Description

Technical Field

[0001] This utility model relates to the field of bedding, specifically to an air circuit structure and a mattress. Background Technology

[0002] Existing mattresses include a mattress body with built-in airbags and a control box that regulates the air pressure within the airbags. The control box adjusts the air pressure within the airbags to enable them to perform their corresponding functions. The control box needs to be connected to the airbags and adjacent airbags via air tubes to ensure that the air pressure within the airbags can be regulated by the control box. Because the mattress body is a deformable flexible component, it has a greater range of deformation when used with an electric bed frame. This causes the air tubes to be easily stretched and deformed due to the mattress body's deformation. This can easily lead to the air tube ends detaching from their corresponding connectors, or the air tubes being compressed and flattened, resulting in blocked airflow and affecting the user experience. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an air passage structure and mattress with a protective sleeve. The protective sleeve is placed on the air tube, and the port of the protective sleeve is clamped to the corresponding air nozzle through a retaining ring. This not only improves the reliability of the connection between the air tube and the air nozzle, but also uses the protective sleeve to maintain the outline of the air tube, ensuring smooth airflow and improving the user experience.

[0004] This utility model is achieved through the following method: an air passage structure with a protective sleeve, including an air nozzle communicating with a preset space and an air tube connected to the air nozzle. A twistable and deformable protective sleeve is fitted onto the air tube. A retaining ring is provided at the end of the protective sleeve. The protective sleeve is fitted onto the air tube, and the retaining ring cooperates with the air nozzle to clamp the corresponding opening of the air tube, ensuring a secure connection between the air tube and the air nozzle and maintaining unobstructed airflow. By fitting the protective sleeve onto the air tube, and having the retaining ring clamp the corresponding opening of the air tube to the corresponding air nozzle, the connection reliability between the opening and the air nozzle is improved. The protective sleeve also withstands deformation forces, preventing the air tube from being stretched, and maintains the air tube's contour, ensuring smooth airflow and improving the user experience.

[0005] Preferably, the middle section of the protective sleeve is formed by spirally twisting a long strip of sheet material to create a tubular cavity within the sleeve for the trachea to pass through. The spiral-shaped protective sleeve has both good radial shaping properties, ensuring that the trachea will not be flattened or blocked, and good bending properties, allowing it to bend and deform synchronously with the trachea, thus protecting it.

[0006] Preferably, a deformation space is reserved between each turn in the middle section of the protective sleeve, and the relative position of adjacent turns can be changed by utilizing the deformation space, so that the protective sleeve can be bent and deformed.

[0007] Preferably, the sheet material is an elastic plastic or metal sheet to reduce the radial deformation of the accommodating cavity. Using a plastic or metal sheet effectively reduces costs, facilitates processing, and allows the material to return to its original position after deformation, effectively extending the service life of the protective sleeve and providing effective protection for the trachea.

[0008] Preferably, the retaining ring is C-shaped and has a notch for expansion and contraction. The retaining ring is fitted onto the corresponding air port of the air nozzle and forms a pre-tightening force to clamp the tube opening. The retaining ring uses the notch to expand and contract to reset, ensuring that the retaining ring can be fastened onto the corresponding air port of the air nozzle and firmly clamp the tube opening, ensuring that the tube opening is securely fitted and connected to the corresponding air port.

[0009] Preferably, the outer wall of the air port is provided with a limiting annular groove, and the inner wall of the retaining ring is provided with a limiting protrusion. The limiting protrusion engages with the limiting annular groove and tightly clamps the pipe opening. The retaining ring is sleeved on the air port, and the limiting protrusion is radially engaged in the limiting annular groove along the air port. This not only clamps the pipe opening radially but also prevents axial displacement of the limiting protrusion and the limiting annular groove, thereby preventing the retaining ring from axially disengaging from the air port.

[0010] Preferably, a limiting protrusion is provided at the outer edge of the air port, the limiting protrusion abutting against a limiting protrusion to prevent the retaining ring from disengaging from the air port. The limiting protrusion abuts against the limiting protrusion and prevents the retaining ring from disengaging from the air port. The retaining ring expands, allowing the limiting protrusion to pass over the limiting protrusion, and then retracts to reset, allowing the limiting protrusion to engage with the limiting ring groove.

[0011] Preferably, the side wall of the limiting protrusion facing the limiting ring groove is a vertical abutment surface, and the other side wall is an inclined guide surface. The vertical abutment surface can abut and limit the limiting protrusion, preventing the retaining ring from disengaging from the air port. The inclined guide surface can convert the force of the retaining ring moving axially along the air port into a force that drives the retaining ring to expand radially, ensuring that the limiting protrusion can pass over the limiting protrusion and be locked in the limiting ring groove.

[0012] A mattress includes a mattress body with an internal airbag assembly. The airbag assembly comprises a plurality of closely arranged airbags, each airbag having an air nozzle on the same side. Corresponding air ports of the air nozzles are connected via an air passage structure, allowing the airbags within the airbag assembly to synchronously adjust air pressure. Adjacent airbags within the same airbag assembly are connected via the air passage structure to ensure reliable communication between adjacent airbags.

[0013] Preferably, there are at least two airbag assemblies arranged along the front-to-back direction of the cushion. The air pressure inside each airbag assembly can be adjusted independently. By setting multiple sets of airbag assemblies, multiple independently adjustable areas can be obtained, thereby improving adjustment accuracy and enhancing the user experience.

[0014] Preferably, the pad body is provided with a control box for adjusting the air pressure inside each airbag assembly. The control box is used to adjust the air pressure inside the airbag assembly, thereby realizing the adjustment of the pad body's hardness.

[0015] Preferably, the pad body has a surrounding edge, and the pad body and the surrounding edge are wrapped by an outer cover. The surrounding edge plays a role in shaping, limiting and supporting the periphery of the pad body. The outer cover completely wraps the pad body and the surrounding edge, which is convenient for disassembly and cleaning, and provides suitable decoration.

[0016] Preferably, the nozzle is T-shaped, including an inner interface communicating with the capsule body and two coaxial, oppositely arranged air ports. The capsule body is connected to adjacent capsule bodies on both sides through the T-shaped nozzle, which simplifies the structure, facilitates airflow delivery, and improves air delivery efficiency.

[0017] The beneficial effects of this utility model are as follows: A protective sleeve is placed on the trachea, and the port of the protective sleeve is clamped to the corresponding opening of the trachea by a retaining ring. This not only improves the reliability of the connection between the opening and the nozzle, but also allows the protective sleeve to withstand deformation forces and prevent the trachea from being stretched. Furthermore, the protective sleeve can maintain the contour of the trachea, ensuring smooth airflow and improving the user experience. Attached Figure Description

[0018] Figure 1 This is a disassembled structural diagram of the gas path structure described in Embodiment 1;

[0019] Figure 2 This is a schematic diagram of the assembly structure of the gas passage structure described in Embodiment 1;

[0020] Figure 3 This is a partial cross-sectional view of the gas path structure described in Embodiment 1;

[0021] Figure 4 This is a cross-sectional view of the gas path structure described in Embodiment 1 when it is in a bent state;

[0022] Figure 5 This is a schematic diagram of the structure of the protective sleeve described in Embodiment 1;

[0023] Figure 6 This is a schematic diagram of the disassembled structure of the mattress described in Example 2;

[0024] Figure 7 This is a schematic diagram of the airbag assembly described in Embodiment 2;

[0025] In the diagram: 1. Air nozzle, 2. Air tube, 3. Protective sleeve, 4. Clamping ring, 5. Notch, 6. Limiting ring groove, 7. Limiting protrusion, 8. Limiting protrusion ring, 9. Airbag assembly, 10. Airbag body, 11. Control box, 12. Surrounding edge. Detailed Implementation

[0026] The essential features of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0027] Example 1:

[0028] This embodiment provides a gas path structure.

[0029] like Figure 1 and 2 The illustrated air passage structure includes an air nozzle communicating with a preset space and an air tube connected to the air nozzle. A twistable protective sleeve is fitted onto the air tube, and a retaining ring is provided at the end of the protective sleeve. The protective sleeve is fitted onto the air tube, and the retaining ring cooperates with the air nozzle to clamp the corresponding opening of the air tube, ensuring a secure connection between the air tube and the air nozzle and maintaining unobstructed airflow. By fitting the protective sleeve onto the air tube, and having the retaining ring at the end of the protective sleeve clamp the corresponding opening of the air tube to the corresponding air nozzle, the connection reliability between the tube opening and the air nozzle is improved. The protective sleeve also helps to withstand deformation forces, preventing the air tube from being stretched, and maintains the air tube's contour, ensuring smooth airflow and improving the user experience.

[0030] In this embodiment, the trachea and the protective sleeve have the same length. The trachea is inserted into the tubular cavity inside the protective sleeve. The two ends of the trachea are respectively positioned by retaining rings located at both ends of the protective sleeve. This not only uses the retaining rings to clamp the trachea openings in cooperation with the corresponding air nozzles to prevent the openings from detaching from the air nozzles, but also uses the structural strength of the protective sleeve itself to prevent local pressure on the middle section of the trachea, ensuring that the cross-sectional profile of each section of the trachea meets the airflow delivery requirements. Furthermore, the structural strength of the protective sleeve ensures that the trachea will not be stretched, further ensuring that the openings will not detach from the air nozzles.

[0031] In this embodiment, the retaining ring is C-shaped and has a notch for adjustment. The retaining ring is fitted onto the corresponding air port of the air nozzle and forms a pre-tightening force to secure the pipe opening. During installation, as... Figure 3 As shown, firstly, the trachea is inserted into the receiving cavity, with the trachea opening corresponding to the retaining ring of the protective sleeve; then, the trachea opening is fitted onto the corresponding air port of the air nozzle, and the opening deforms to fit tightly against the limiting ring groove and the limiting protrusion; finally, the retaining ring is fitted onto the air port and tightly clamps the opening, ensuring a firm connection between the opening and the air port, which improves both the anti-detachment performance and the sealing performance.

[0032] In this embodiment, a limiting annular groove is provided on the outer wall of the air port, and a limiting protrusion is provided on the inner wall of the retaining ring. The limiting protrusion engages with the limiting annular groove and tightly clamps the pipe opening. A limiting convex ring is provided at the end edge of the outer wall of the air port, and the limiting convex ring abuts against the limiting protrusion to prevent the retaining ring from disengaging from the air port. The limiting annular groove and the limiting convex ring on the outer wall of the air port have a radial dimension difference, giving the outer wall of the air port a concave-convex contour, effectively improving the clamping reliability. During assembly, the retaining ring can expand and contract to reset using the notch. Specifically, the retaining ring is fitted along the axis of the air inlet. The retaining ring will first abut against the inclined guide surface of the limiting protrusion, converting the axial force on the retaining ring into a radial expansion force, so that the retaining ring expands and ensures that the limiting protrusion can smoothly pass over the limiting protrusion. When the limiting protrusion moves to the limiting ring groove, the retaining ring will contract to reset and drive the limiting protrusion to be radially locked in the limiting ring groove, and cooperate with the limiting ring groove to clamp the air inlet of the air tube.

[0033] After assembly, as Figure 4 As shown, the limiting protrusion can simultaneously engage with the bottom and side walls of the limiting ring groove to clamp the inlet of the air tube, which not only improves clamping reliability but also limits the retaining ring, effectively preventing it from detaching from the air nozzle. Furthermore, the vertical abutment surface on the limiting protrusion also provides abutment and limiting effect on the retaining ring, ensuring that the limiting protrusion is reliably engaged within the limiting ring groove.

[0034] In this embodiment, the middle section of the protective sleeve is formed by spirally twisting a long strip of sheet material to create a tubular cavity within the protective sleeve through which a trachea can pass (e.g., Figure 5 (As shown). Deformation space is reserved between the turns in the middle section of the protective sleeve. The middle section of the protective sleeve is formed by twisting an elastic plastic or metal sheet, thus reserving deformation space between adjacent turns. During use, the protective sleeve can bend and deform synchronously with the air tube, and plays a shaping role in the cross-sectional profile of the air tube, reducing the radial deformation amplitude of the accommodating cavity, ensuring that the cross-section of the air tube maintains a circular profile and meets the airflow delivery requirements.

[0035] In this embodiment, the limiting protrusion faces the side wall of the limiting ring groove as a vertical contact surface, and the other side wall is an inclined guide surface. Multiple limiting protrusions can be present and distributed along the axial direction of the air port, providing multiple limiting functions for the retaining ring and forming a concave-convex surface on the outer wall of the air port, thus improving the anti-detachment performance of the pipe opening.

[0036] In this embodiment, the two ends of the air tube are respectively connected to the corresponding air nozzles by corresponding retaining rings set at both ends of the protective sleeve, so that the corresponding air nozzles of adjacent air nozzles can be sealed and connected.

[0037] Example 2:

[0038] Compared to Embodiment 1, this embodiment provides a mattress.

[0039] like Figure 6 The mattress shown includes a mattress body with an internal airbag assembly. The airbag assembly comprises multiple closely arranged airbags, each with an air nozzle on the same side. Corresponding air ports on the air nozzles are connected via an air passage structure, allowing for synchronized pressure adjustment of the airbags within the assembly. Each airbag within the assembly has an air nozzle, and adjacent air nozzles are connected via the air passage structure. This facilitates synchronized pressure adjustment of the airbags within the same assembly, effectively improving adjustment efficiency, and also simplifies assembly and maintenance, enhancing the user experience.

[0040] In this embodiment, the nozzle is T-shaped, including an inner interface communicating with the capsule body and two coaxial and oppositely arranged air ports. The bottom vertical end of the nozzle communicates with the corresponding capsule body, and the two ends of the horizontal part communicate with the corresponding air ports of adjacent nozzles, ensuring that adjacent capsule bodies can be connected through the air passage structure (e.g., Figure 7 (As shown).

[0041] In this embodiment, there are at least two sets of airbag components, which are arranged along the front and back of the pad. The air pressure in each airbag component can be adjusted independently, so that the softness and hardness of each airbag component can be adjusted independently, providing differentiated support for different parts of the user's body and effectively improving support comfort.

[0042] In this embodiment, the cushion body is provided with a control box for adjusting the air pressure in each airbag assembly. The control box is provided with an air pump assembly and a solenoid valve assembly. The air pump assembly is used to generate high-pressure air, and the solenoid valve assembly is used to guide the high-pressure air to be delivered to each airbag assembly independently, so that the air pressure in each airbag assembly can be adjusted independently.

[0043] In this embodiment, the pad body has a perimeter edging, and the pad body and the edging are covered by an outer cover. The edging serves to shape, limit, and support the perimeter of the pad body, while the outer cover completely covers the pad body and the edging, facilitating disassembly and cleaning, and providing suitable decoration.

[0044] The other structures and effects of the gas path structure described in this embodiment are the same as those in Embodiment 1, and will not be repeated here.

Claims

1. A pneumatic structure with a protective sleeve, comprising an air nozzle (1) communicating with a preset space and an air pipe (2) connected to the air nozzle (1), characterized in that, A twistable protective sleeve (3) is fitted on the air tube (2). A retaining ring (4) is provided at the end of the protective sleeve (3). The protective sleeve (3) is fitted on the air tube (2). The retaining ring (4) cooperates with the air nozzle (1) to clamp the corresponding opening of the air tube (2) so that the air tube (2) and the air nozzle (1) are firmly connected and remain unobstructed.

2. The air passage structure with a protective sleeve according to claim 1, characterized in that, The middle section of the protective sleeve (3) is formed by spirally twisting a long strip of sheet material to form a tubular cavity inside the protective sleeve (3) through which the air tube (2) can pass.

3. The air passage structure with a protective sleeve according to claim 2, characterized in that, Deformation space is reserved between the turns in the middle section of the protective sleeve (3).

4. The air passage structure with a protective sleeve according to claim 2, characterized in that, The sheet material is an elastic plastic sheet or metal sheet to reduce the radial deformation of the receiving cavity.

5. The air passage structure with a protective sleeve according to claim 1, characterized in that, The retaining ring (4) is C-shaped and has a notch (5) for deformation. The retaining ring (4) is fitted onto the corresponding air port of the air nozzle (1) and forms a pre-tightening force to tighten the pipe opening.

6. The air passage structure with a protective sleeve according to claim 5, characterized in that, The outer wall of the air inlet is provided with a limiting ring groove (6), and the inner wall of the retaining ring (4) is provided with a limiting protrusion (7). The limiting protrusion (7) is inserted into the limiting ring groove (6) and tightly clamps the pipe opening.

7. The air passage structure with a protective sleeve according to claim 6, characterized in that, A limiting protrusion (8) is provided at the outer edge of the air port. The limiting protrusion (8) abuts against the limiting protrusion (7) to prevent the retaining ring (4) from disengaging from the air port.

8. The air passage structure with a protective sleeve according to claim 7, characterized in that, The limiting protrusion (8) has a vertical contact surface facing the side wall of the limiting ring groove (6), and the other side wall is an inclined guide surface.

9. A mattress comprising a mattress body having an internal airbag assembly (9), the airbag assembly (9) comprising a plurality of closely arranged airbags (10), characterized in that, Each of the bladder bodies (10) is provided with an air nozzle (1) on the same side. The corresponding air ports of the air nozzles (1) are connected by the air passage structure described in any one of claims 1-8, so that the air pressure of the bladder body (10) in the airbag assembly (9) can be adjusted synchronously.

10. A mattress according to claim 9, characterized in that, The airbag assembly (9) is at least two sets and is arranged along the front and back of the pad body; or, the pad body is provided with a control box (11) for adjusting the air pressure in each airbag assembly (9); or, the pad body is provided with a perimeter edge (12), and the pad body and the perimeter edge (12) are covered by an outer cover; or, the air nozzle (1) is T-shaped and includes an inner interface communicating with the bladder body (10) and two coaxial and oppositely arranged air ports.

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