Ventilation cushion and ventilation cushion gasket

Abstract

The application relates to the technical field of seat cushions, in particular to a gasket for a ventilated seat cushion and a ventilated seat cushion. The gasket is of a cylindrical structure, a vertical through hole I is arranged in the center of the gasket, a limiting cylinder is coaxially arranged outside the through hole I, the limiting cylinder extends along the axial direction of the through hole I and surrounds the through hole I, a buried wire groove penetrating the thickness of the side wall of the limiting cylinder is arranged on the side wall of the limiting cylinder; a transition chamfer I is arranged on the contour edge of the gasket and is symmetrically arranged along a horizontal center axis; and a plurality of vertical wire grooves are arranged on the outer side edge of the gasket. The gasket structure is improved through design, the wear of the upper buckle is reduced, the limiting cylinder is directly pressed when the buckle is installed, the installation process is simplified, and the practicability of the seat cushion is optimized.

Description

Technical Field

[0001] This application relates to the field of seat cushion technology, specifically to a ventilated seat cushion pad and the ventilated seat cushion thereof. Background Technology

[0002] Seat cushions are indispensable items in daily life and work, widely used in homes, offices, automobiles, and other fields. Current seat cushion designs are generally based on single or double-layer structures, using materials such as foam, silicone, sponge, or fabric. These cushion structures often have poor ventilation and heat dissipation performance, especially during prolonged sitting, where heat accumulates and is difficult to dissipate. Although some car seats have ventilation functions, the vast majority of car seats lack ventilation and cooling capabilities.

[0003] Existing technology CN202221448570 describes a ventilated seat cushion. This cushion achieves ventilation through a three-layer structure design, and the ventilation effect can be further enhanced by cooperation with a fan. However, the gasket in this prior art is a cylindrical structure with a through hole in the vertical direction, onto which an upper clip is engaged. In actual use and installation, the upper part of the upper clip is directly exposed on the outside of the gasket. Under daily installation, displacement, or human pressure, it is easily subjected to external impact or friction, leading to deformation or breakage of the clip. Manual assembly of the upper clip into the through hole is time-consuming and laborious. In batch assembly, it is necessary to first squeeze the upper clip to insert it into the through hole, and then press the upper clip to align the groove on its side with the through hole. This process is prone to installation failure due to deformation of the elastic line, requiring high precision in manual assembly. The air intake and seat are still connected via a connector, elastic thread, and upper clip. In actual use, when this part wears down, the elastic thread is prone to loosening due to tension release during replacement, causing the mesh structure of the upper seat surface to become disorganized. This increases the difficulty of maintenance, especially for non-professionals, as replacing parts may damage the overall structure. Summary of the Invention

[0004] The purpose of this application is to address the aforementioned shortcomings of the prior art by providing a ventilated seat cushion pad and a ventilated seat cushion thereof. By designing and improving the pad structure, the upper buckle is protected and wear is reduced. When installing the buckle, it can be directly aligned with the limiting cylinder and pressed, which simplifies the installation process and optimizes the practicality of the seat cushion.

[0005] The technical solution of this application is as follows:

[0006] A ventilated seat cushion pad, characterized in that: the pad has a cylindrical structure, a vertical through hole I is provided in the center of the pad, a limiting cylinder is coaxially provided on the outside of the through hole I, the limiting cylinder extends along the axial direction of the through hole I and surrounds the through hole I, and a wire groove penetrating its thickness is provided on the side wall of the limiting cylinder; the outline edge of the pad is provided with a transition chamfer I mirrored along the horizontal central axis, and a plurality of vertical wire grooves are provided on the outer edge of the pad.

[0007] Preferably, the inner cavity of the limiting cylinder is a square cylindrical structure, and the side length of the limiting cylinder is equal to the inner diameter of the through hole I. Four embedded wire grooves are provided, each located at the center of one of the four sides of the limiting cylinder. The distribution of the embedded wire grooves ensures uniform stress on the mesh structure, enhancing the load-bearing stability of the cushion. The square limiting cylinder design also facilitates alignment with the connecting piece, improving modular efficiency.

[0008] Preferably, the limiting cylinder includes an upper limiting cylinder and a lower limiting cylinder respectively disposed on the upper and lower surfaces of the gasket; the upper and lower limiting cylinders have the same structure and are mirror images of each other offset by 90° around the vertical central axis of the gasket; a set of included angles of the cylinder walls of the upper limiting cylinder aligned with the vertical central axis of the gasket are provided with a transition chamfer II from the opening of the upper limiting cylinder to the upper edge of the through hole I; another set of included angles of the cylinder walls of the upper limiting cylinder aligned with the vertical central axis of the gasket are provided with a vertical chamfer III. This eliminates the need for forceful clamping, facilitating smooth insertion of the clamps, reducing installation difficulty and manual labor time, and decreasing the production error rate.

[0009] Preferably, the gasket also has several vertically oriented perforations, and an installation mark is provided on the gasket on the outer side of the included angle of the limiting cylinder wall. The perforations reduce weight and promote air circulation.

[0010] Preferably, the perforated holes are evenly distributed around the vertical central axis of the gasket, and the installation marks are set inside the perforated holes. Upper or lower marks can also be added to the installation marks to help installers determine the appropriate insertion angle for the gasket. Clips I and II can be inserted according to the instructions on the installation marks.

[0011] A ventilated seat cushion includes an upper seat surface layer, a lower seat surface layer, and a support layer. The support layer includes a ventilated seat cushion pad; the lower seat surface layer has the same structure as the upper seat surface layer; the upper seat surface layer includes several connecting pieces and elastic cords; each connecting piece has a lead-in hole I; the elastic cords pass through the lead-in holes I of the connecting pieces and are arranged in a rectangular mesh structure with the connecting pieces at intervals; the elastic cords pass through embedded grooves and converge above the pad; an upper limit cylinder has a buckle I; and a lower limit cylinder has a buckle II; buckles I and II are respectively engaged from above and below within the through-hole I of the pad, forming a cross-shaped structure within the through-hole I. Buckles I and II are inserted into the through-hole I from above and below the pad, respectively, so that the side plates of buckles I and II are engaged at a 90° offset within the through-hole I.

[0012] Preferably, buckle I and buckle II have the same structure and are both U-shaped buckles. Each U-shaped buckle includes a rectangular base plate and side plates fixed diagonally to the rectangular base plate. The rectangular base plate of buckle I fits into the opening of the limiting cylinder. The outer surface of the side plate has a groove, the width of which matches the depth of through hole I. The free end of the side plate has a rounded corner. When buckle I and buckle II align with the gasket, buckle II is oriented opposite to buckle I and offset by 90°. The side plates of buckle I and buckle II are respectively engaged in two sets of diagonal sections within the through hole I of the gasket. When buckle I is inserted, it contacts the chamfered edge of the limiting cylinder for compression. After buckle I is fully engaged, it provides a pure chamfered anti-detachment mechanism.

[0013] Preferably, the outer side of the grooving groove of the limiting cylinder at the edge of the upper and lower seat surfaces is provided with a locking buckle, and the locking buckle is provided with a lead wire hole II, and the end of the elastic wire is disposed in the lead wire hole II. By placing the end of the elastic wire in the lead wire hole II, the locking buckle I and the end of the elastic wire are locked and connected.

[0014] Preferably, several gaskets located at the edge of the support layer are connected to fixed inserts, each with a limiting protrusion. An air intake port is connected to the fixed insert of each gasket, sleeved around the fixed insert, and a fan is connected to the air intake port. A locking groove is provided within the air intake port; after the fixed insert is inserted into the air intake port, the limiting protrusion hooks into the locking groove to achieve limiting. Replacing the air intake port does not require untying the elastic cord, reducing maintenance complexity.

[0015] Preferably, the air intake interface is a shell-shaped structure with a concave cross-section. The upper and lower surfaces of the air intake interface are respectively sandwiched between the outer sides of the upper and lower seat surfaces. A locking groove is provided inside the air intake interface, and the side opening of the air intake interface connects to the air outlet of the fan. The air intake interface and the fan are fixed together by a snap-fit ​​rotating locking mechanism. This achieves active air delivery, and the user can adjust the airflow to adapt to different environments.

[0016] Preferably, the upper surface of the connecting piece of the upper seat layer is provided with a hook-and-loop fastener male surface, the upper surface of the upper seat layer is provided with a fabric surface, and the lower surface of the fabric surface is provided with a hook-and-loop fastener female surface, with the hook-and-loop fastener male surface contacting and fixing the hook-and-loop fastener female surface; the lower surface of the connecting piece of the lower seat layer is provided with a silicone anti-slip pad. This allows the fabric surface to be detachable and replaceable, facilitating cleaning or customization, and also helps to absorb sweat from the seat cushion, improving its softness.

[0017] The outer edge of the pad features a serrated anti-slip design with a transition. In actual use, when the connecting piece bends too much under the weight of the seat cushion, the edge of the connecting piece will be pressured and pulled into the seat cushion. The serrations allow the elastic cord to be caught in the serrations, preventing it from being cut by the edge of the pad. Otherwise, the vertical cutting force of the connecting piece downwards would cut the elastic cord. The purpose of this transition chamfer is that after the connecting piece is displaced under force, the tension of the elastic cord will pull the connecting piece back after it loses its weight. The transition chamfer makes this process smoother, reduces obstacles, prevents cord wear, and improves the ease of assembly and long-term reliability.

[0018] The beneficial effects of this application are:

[0019] This application features a novel and reasonable design that is convenient and effective to use. It creates an elevated space through a support layer, allowing heat to dissipate from the edges and promoting natural air convection.

[0020] (1) The limiting cylinder forms a protective layer on the buckle I, reducing the impact or friction of external forces on buckle I and improving the connection stability of the seat surface during long-term use.

[0021] (2) The chamfered transition design of the limiting cylinder and its inner corners simplifies the installation process of buckle I. You only need to align and press buckle I to connect to through hole I, which saves time and effort.

[0022] (3) The connection method between the air inlet and the support layer is convenient for disassembly and assembly, avoiding the trouble of replacing air inlet components that may damage the overall structure. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a three-dimensional structural diagram of the gasket in this application.

[0025] Figure 2 Figure b shows a three-dimensional structural diagram of the gasket in this application.

[0026] Figure 3 This is a schematic diagram of the main structure of the gasket in this application.

[0027] Figure 4 This is a schematic diagram of the installation structure of a ventilated seat cushion according to this application.

[0028] Figure 5 This is a schematic diagram of the structure of a ventilated seat cushion with fabric surface according to this application.

[0029] Figure 6 This is a schematic diagram (a) showing the arrangement of the pads and connecting pieces in a ventilated seat cushion according to this application.

[0030] Figure 7 This is a schematic diagram (b) showing the arrangement of the pads and connecting pieces in a ventilated seat cushion according to this application.

[0031] Figure 8 This is a partial explosion diagram of the corner of the upper seat surface of a ventilated seat cushion according to this application.

[0032] Figure 9 This is a schematic diagram of the structure of the air intake interface locking groove in this application.

[0033] Figure 10 This is a schematic diagram of the air intake interface of this application.

[0034] Figure 11 This is a schematic diagram of the structure of buckle I in this application.

[0035] Figure 12 This is a structural schematic diagram of the cross-section of the buckle I and the gasket in this application.

[0036] Among them, 1-gasket, 2-through hole I, 3-limiting cylinder, 4-embedded wire groove, 5-hollow hole, 6-upper seat surface layer, 7-lower seat surface layer, 8-support layer, 9-connecting piece, 10-elastic line, 11-lead wire hole I, 12-buckle I, 13-buckle II, 14-rectangular base plate, 15-side plate, 16-slot, 17-locking buckle, 18-lead wire hole II, 19-fixing insert plate, 20-limiting protrusion, 21-air inlet, 22-fan, 23-locking groove, 24-fabric surface, 25-buckle rotation locking mechanism, 26-hook and loop fastener male surface, 27-hook and loop fastener female surface, 28-silicone anti-slip pad, 29-installation mark, 30-upper end mark, 31-wire groove, 32-transition chamfer I, 33-transition chamfer II, 34-chamfer III. Detailed Implementation

[0037] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of this application.

[0038] A ventilated seat cushion pad 1 has a cylindrical structure. A vertical through hole I2 is provided in the center of the pad 1. A limiting cylinder 3 is coaxially provided on the outside of the through hole I2. The limiting cylinder 3 extends along the axial direction of the through hole I2 and surrounds the through hole I2. A wire groove 4 penetrating its thickness is provided on the side wall of the limiting cylinder 3. A transition chamfer I32 mirrored along the horizontal central axis is provided on the contour edge of the pad 1. Several vertical wire grooves 31 are provided on the outer side of the pad 1.

[0039] The inner cavity of the limiting cylinder 3 is a square cylindrical structure. The side length of the limiting cylinder 3 is equal to the inner diameter of the through hole I2. Four wire grooves 4 are provided, which are respectively set at the center of the four sides of the limiting cylinder 3.

[0040] The limiting cylinder 3 includes an upper limiting cylinder 3 and a lower limiting cylinder 3 respectively disposed on the upper and lower surfaces of the gasket 1; the upper limiting cylinder 3 and the lower limiting cylinder 3 have the same structure and are mirror images of each other with a 90° offset around the vertical central axis of the gasket 1; a set of cylinder wall angles aligned with the vertical central axis of the gasket 1 of the upper limiting cylinder 3 are provided with a transition chamfer II 33 from the opening of the upper limiting cylinder 3 to the upper edge of the through hole I 2; another set of cylinder wall angles aligned with the vertical central axis of the gasket 1 of the upper limiting cylinder 3 are provided with a vertical chamfer III 34.

[0041] The gasket 1 is also provided with several hollow holes 5 that are hollowed out in the vertical direction, and the gasket 1 on the outer side of the included angle of the cylinder wall of the limiting cylinder 3 is provided with an installation mark 29.

[0042] The perforated holes 5 are evenly distributed around the vertical central axis of the gasket 1, and the installation mark 29 is set inside the perforated holes 5.

[0043] The installation marks for the vertical center axis alignment of the gasket 1 are set with an upper mark 30.

[0044] A ventilated seat cushion includes an upper seat surface layer 6, a lower seat surface layer 7, and a support layer 8. The support layer 8 includes a ventilated seat cushion pad 1. The lower seat surface layer 7 has the same structure as the upper seat surface layer 6. The upper seat surface layer 6 includes several connecting pieces 9 and elastic cords 10. The connecting pieces 9 are provided with lead holes I11. The elastic cords 10 pass through the lead holes I11 of several connecting pieces 9 and are arranged in a rectangular mesh structure with the connecting pieces 9 as intervals. The elastic cords 10 pass through the embedded wire groove 4 and converge above the pad 1. The upper limit cylinder 3 is provided with a buckle I12, and the lower limit cylinder 3 is provided with a buckle II13. The buckles I12 and II13 are respectively engaged in the through hole I2 of the pad 1 from the top and bottom. The buckles I12 and II13 form a cross structure in the through hole I2.

[0045] Buckle I12 and buckle II13 have the same structure and are both U-shaped buckles. The U-shaped buckle includes a rectangular base plate 14 and a side plate 15 fixed at the diagonal position of the rectangular base plate 14. The rectangular base plate 14 of buckle I12 fits into the opening of the limiting cylinder 3. The outer side of the side plate 15 is provided with a groove 16. The width of the groove 16 matches the depth of the through hole I2. The free end of the side plate 15 is provided with a transition rounded corner.

[0046] A locking buckle 17 is provided on the outer side of the wire groove 4 of the limiting cylinder 3 at the edge of the upper seat surface layer 6 and the lower seat surface layer 7. A lead wire hole II 18 is provided on the locking buckle 17, and the end of the elastic wire 10 is placed in the lead wire hole II 18.

[0047] Several gaskets 1 located at the edge of the support layer 8 are connected to fixed insert plates 19, and fixed insert plates 19 are provided with limiting protrusions 20; an air inlet 21 is connected to the outside of the fixed insert plate 19 of the gasket 1, the air inlet 21 is sleeved on the outside of the fixed insert plate 19, and a fan 22 is connected to the air inlet 21; a locking groove 23 is provided in the air inlet 21, and after the fixed insert plate 19 is inserted into the air inlet 21, the limiting protrusion 20 hooks the locking groove 23 to achieve the limiting.

[0048] The air intake interface 21 is a shell-shaped structure with a concave cross section. The upper and lower surfaces of the air intake interface 21 are respectively sandwiched on the outside of the upper seat surface layer 6 and the lower seat surface layer 7. A locking groove 23 is provided inside the air intake interface 21. The side opening of the air intake interface 21 is connected to the air outlet of the fan 22.

[0049] The upper surface of the connecting piece 9 of the upper seat layer 6 is provided with a hook and loop fastener male surface 26, the upper surface of the upper seat layer 6 is provided with a fabric surface 24, the lower surface of the fabric surface 24 is provided with a hook and loop fastener female surface 27, and the hook and loop fastener male surface 26 and the hook and loop fastener female surface 27 are in contact and fixed; the lower surface of the connecting piece 9 of the lower seat layer 7 is provided with a silicone anti-slip pad 28.

[0050] The air intake port 21 and the fan 22 are fixed by a snap-lock mechanism 25.

[0051] The power cord of the fan 22 is connected to one end of the power cord via a magnetic connector. The power cord is equipped with a three-speed fan switch, and the other end of the power cord is equipped with a USB connector.

[0052] The snap-lock mechanism 25 can be configured as follows: a semi-circular protrusion is symmetrically distributed between the air inlet 21 and the fan 22. The protrusion is typically a semi-cylindrical or semi-frustum shape, with an outer annular sleeve. The inner wall of the sleeve has a guide groove or recess that matches the protrusion. After being fitted over the protrusion, the sleeve is rotated to allow the protrusion to slide into the locking position. Operating steps: Alignment and insertion: The semi-circular protrusions of the two components are aligned and inserted into the straight groove of the annular sleeve (at this time, the protrusion can move freely). Rotation locking: The annular sleeve is rotated 90°, and the protrusion slides along the guide groove into the transverse slot of the annular sleeve. The slot wall restricts the displacement of the protrusion, forming a mechanical interlock. Reverse unlocking: Rotating 90° in the opposite direction releases the lock, facilitating disassembly.

[0053] Connecting piece 9 is made of carbonized bamboo seed. Connecting piece 9 has a rectangular structure and 45° chamfered corners at its four corners. The chamfered corners of four adjacent connecting pieces 9 are joined together to form a square hole. The rectangular base plate 14 of buckle I12 has a square structure.

[0054] One part of the hook and loop fastener consists of webbing with small, rigid plastic hooks, called the hook and loop male side 26; the other part consists of webbing with corresponding soft nylon loops, called the hook and loop female side 27. When the male and female sides are attached, the rigid plastic hooks hook onto the soft nylon loops, thus forming a secure connection.

Claims

1. A ventilated seat cushion pad, characterized in that: The gasket has a cylindrical structure with a vertical through hole I at its center. A limiting cylinder is coaxially arranged outside the through hole I, extending along the axial direction of the through hole I and surrounding it. A wire groove penetrating its thickness is provided on the side wall of the limiting cylinder. The outline edge of the gasket has a transition chamfer I mirrored along the horizontal central axis, and several vertical wire grooves are provided on the outer edge of the gasket.

2. The ventilated seat cushion pad according to claim 1, characterized in that: The inner cavity of the limiting cylinder is a square cylindrical structure, and the side length of the limiting cylinder is equal to the inner diameter of the through hole I. There are four embedded wire grooves, which are respectively set at the center of the four sides of the limiting cylinder.

3. The ventilated seat cushion pad according to claim 2, characterized in that: The limiting cylinder includes an upper limiting cylinder and a lower limiting cylinder respectively disposed on the upper and lower surfaces of the gasket; the upper limiting cylinder and the lower limiting cylinder have the same structure and are mirror images of each other with a 90° offset around the vertical central axis of the gasket; a set of included angles of the cylinder walls of the upper limiting cylinder aligned with the vertical central axis of the gasket are provided with a transition chamfer II from the opening of the upper limiting cylinder to the upper edge of the through hole I; a vertical chamfer III is provided with another set of included angles of the cylinder walls of the upper limiting cylinder aligned with the vertical central axis of the gasket.

4. A ventilated seat cushion pad according to claim 3, characterized in that: The gasket is also provided with several hollow holes that extend vertically, and the gasket on the outer side of the included angle of the limiting cylinder wall is provided with installation marks.

5. A ventilated seat cushion pad according to claim 4, characterized in that: The perforated holes are evenly distributed around the vertical central axis of the gasket, and the installation marks are set inside the perforated holes.

6. A ventilated seat cushion, comprising an upper seat surface layer, a lower seat surface layer, and a support layer, characterized in that: The support layer includes the ventilated seat cushion pad as described in claim 5; the lower seat surface layer has the same structure as the upper seat surface layer, the upper seat surface layer includes several connecting pieces and elastic cords, the connecting pieces are provided with lead wire holes I, the elastic cords pass through the lead wire holes I of several connecting pieces and are arranged in a rectangular mesh structure with the connecting pieces as intervals; the elastic cords pass through the embedded wire grooves and converge above the pad, the upper limit cylinder is provided with buckle I, the lower limit cylinder is provided with buckle II, the buckle I and buckle II are respectively engaged in the through hole I of the pad from the top and bottom, and the buckle I and buckle II form a cross structure in the through hole I.

7. A ventilated seat cushion according to claim 6, characterized in that: The buckle I and buckle II have the same structure and are both U-shaped buckles. The U-shaped buckle includes a rectangular base plate and a side plate fixed at the diagonal position of the rectangular base plate. The rectangular base plate of buckle I fits into the opening of the limiting cylinder. The outer side of the side plate is provided with a groove. The width of the groove matches the depth of the through hole I. The free end of the side plate is provided with a transition rounded corner.

8. A ventilated seat cushion according to claim 6, characterized in that: The outer side of the limiting cylinder embedded groove at the edge of the upper seat surface and the lower seat surface is provided with a locking buckle, and the locking buckle is provided with a lead wire hole II, and the end of the elastic wire is placed in the lead wire hole II.

9. A ventilated seat cushion according to claim 6, characterized in that: Several gaskets located at the edge of the support layer are connected to fixed inserts, and the fixed inserts are provided with limiting protrusions; the fixed inserts of the gaskets are connected to air inlets, the air inlets are sleeved on the outside of the fixed inserts, and a fan is connected to the air inlets; a locking groove is provided in the air inlets, and the limiting protrusions and the locking grooves are used to limit the position after the fixed inserts are inserted into the air inlets.

10. A ventilated seat cushion according to claim 9, characterized in that: The air intake interface is a shell-shaped structure with a concave cross-section. The upper and lower surfaces of the air intake interface are respectively sandwiched on the outer sides of the upper and lower seat surfaces. A locking groove is provided inside the air intake interface, and the side opening of the air intake interface is connected to the air outlet of the fan.

11. A ventilated seat cushion according to claim 6, characterized in that: The upper surface of the connecting piece of the upper seat layer is provided with a hook and loop fastener male surface, the upper surface of the upper seat layer is provided with a fabric surface, the lower surface of the fabric surface is provided with a hook and loop fastener female surface, and the hook and loop fastener male surface and the hook and loop fastener female surface are in contact and fixed; the lower surface of the connecting piece of the lower seat layer is provided with a silicone anti-slip pad.

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