An orthopedic chair with detachable cushion

Abstract

The application discloses a posture correcting chair with detachable cushions, comprising a posture correcting chair body, a seat cushion, a backrest and at least two connecting pieces; the posture correcting chair body is of a streamline structure; the seat cushion is detachably connected to the surface of the posture correcting chair body through at least one connecting piece; the backrest is detachably connected to the surface of the posture correcting chair body through at least one connecting piece; the connecting piece comprises a female buckle and a male buckle, the female buckle is fixedly connected with the posture correcting chair body, the male buckle is fixedly connected with the backrest and the seat cushion, and the female buckle and the male buckle are mutually clamped. The tool-free disassembly and assembly are realized through the clamping structure of the female buckle and the male buckle, the seat cushion / backrest can be quickly taken off for cleaning or replacement, quick disassembly and assembly can be realized, and maintenance is convenient. The blind hole hidden design makes the buckle completely embedded into the chair body, and there is no protruding fastener on the surface. The two-stage nested structure cooperation elastic deformation space of the extension part and the annular groove forms a stable connection with low insertion force and high pull-out force, the connection is reliable, and the anti-dropping protection is realized.

Description

Technical Field

[0001] This utility model relates to the technical field of posture adjustment equipment, and in particular to a posture-correcting chair with a detachable cushion. Background Technology

[0002] A typical posture-correcting chair consists of at least two parts: the chair body and the cushion covering the surface of the body. However, in ordinary posture-correcting chairs, the body and the cushion are not detachable, making daily maintenance and replacement impossible, which is extremely inconvenient. Subsequently, Chinese utility model patent with publication number CN222109670U disclosed a solution: the posture-correcting chair includes a frame, a seat cushion, a cushion, and fasteners; the cushion is fixed to the surface of the seat cushion by sewing or gluing, and then the fasteners pass through the seat cushion and the frame, connecting the cushion and the seat cushion together to the frame; when daily maintenance and replacement are required, the fasteners can be removed to achieve a detachable connection between the cushion and the seat cushion and the frame.

[0003] Since the snap fastener consists of a snap fastener base and a screw head, and the snap fastener base is separate from the main body, and the screw head is separate from the seat cushion, both hands are required for installation and removal. Specifically, one hand holds the snap fastener base and inserts it into the through hole (stepped hole) from one side of the chair; the other hand holds the screw head and inserts it into the through hole from the other side of the chair. Then, both hands work together to secure the snap fastener base and the screw head. Conversely, both hands are used for disassembly. Therefore, both disassembly and installation are quite cumbersome and difficult to perform with one hand. Furthermore, because the snap fastener can be disassembled into two parts and is relatively small, there is a risk of it falling or being lost during operation if there is slight carelessness.

[0004] Furthermore, the cushion is first fixed to the seat cushion, and then the cushion and frame are detachable through a detachable connection. This is not a true direct detachability between the cushion and the frame. Moreover, adding a seat cushion not only increases material costs but also adds the step of fixing the cushion to the seat cushion during assembly, further increasing labor costs and ultimately raising the overall product cost.

[0005] In other words, some current solutions suffer from design flaws: Operationally, the efficiency of two-handed coordination is low, and small parts are easily lost; structurally, the split-type connection has poor reliability and insufficient durability, and restricts spatial layout freedom; in terms of user experience, the dual disassembly and assembly process is redundant, and maintenance relies on original parts; in terms of cost, the seat cushion not only increases material and labor costs but also amplifies quality control difficulties and after-sales burdens. Overall, the complex design has not resulted in a substantial improvement in disassembly capability; instead, it has compromised on convenience, reliability, and economy, urgently requiring an iteration towards an integrated, tool-free, foolproof quick-release structure. The solution proposed in this application addresses these shortcomings and can solve at least one or more technical problems. Utility Model Content

[0006] This utility model addresses at least one of the above-mentioned problems by proposing a posture-correcting chair with a detachable cushion.

[0007] The technical solution adopted by this utility model is as follows: A posture correction chair with a detachable cushion includes a main body, a cushion, and connecting parts; The posture correction chair has a streamlined structure. The pad is detachably connected to the surface of the posture correction chair body via at least one connector; The cushion includes a seat cushion and a backrest; The connector includes a female buckle and a male buckle. The female buckle is fixedly connected to the main body of the posture correction chair, and the male buckle is fixedly connected to the pad. The female buckle and the male buckle can be detachably engaged with each other.

[0008] Both the seat cushion and the backrest can be made of soft padding.

[0009] This design allows for easy separation of the seat cushion or backrest from the posture corrector chair body by simply pulling the male buckle out of the female buckle, without the need for any tools, greatly improving the convenience of disassembly. Similarly, during installation, simply align the male buckle with the female buckle and press firmly to complete the installation; the operation is simple and quick. In other words, both installation and disassembly can be done with one hand. For installation, simply hold the male buckle on the seat cushion or backrest with one hand, align it with the female buckle on the posture corrector chair body, and press it down. No two hands are required. Disassembly is even simpler; just hold one corner of the seat cushion or backrest with one hand and pull or lift it open to remove it, just like a button on clothing – a single pull is all it takes to detach it, which is very convenient. Furthermore, this connection method is strong and reliable, ensuring that the seat cushion and backrest will not loosen or detach during normal use, improving the product's reliability and durability. In addition, the integrated design of the posture correction chair makes the overall structure of the posture correction chair simpler, and the cushion is directly detachable from the main body of the posture correction chair, eliminating the indirect detachable solution in the existing technology through other parts, reducing unnecessary other parts, lowering material and labor costs, and facilitating product production and quality control management. At the same time, it also achieves true direct detachable installation.

[0010] As one possible implementation, it also includes blind holes, which are provided on the side of the posture corrector chair body facing the cushion and the blind holes correspond one-to-one with the positions of the female buckles, and the female buckles are fixed in the blind holes.

[0011] The blind hole design not only provides a stable mounting position for the female buckle but also offers ample space to accommodate it, making the entire connection structure more concealed and aesthetically pleasing. When the female buckle is fixed to the surface of the posture corrector chair and the seat or backrest is installed, it protrudes from the surface, causing stinging pain during use. In severe cases, it can even damage the connector, as it is constantly under pressure. Therefore, fixing the female buckle within the blind hole solves the problems of stinging pain and damage. Because the female buckle is hidden within the blind hole, users will hardly notice the connector's presence during normal use, especially when looking from the back of the chair, thus improving the overall appearance and user experience. Furthermore, the one-to-one correspondence between the blind hole and the female buckle ensures that each female buckle is accurately installed in its designated position, further enhancing the accuracy and reliability of the connection. This attention to detail fully reflects the refinement and human-centered design of the product.

[0012] The design of the female buckle being fixed inside the blind hole and the male buckle being fixed on the pad ensures that the entire connector will not fall off or be lost during disassembly and installation.

[0013] In one possible implementation, the female buckle has a female buckle fixing member and a female buckle mating member that cooperate with each other, and the male buckle has a male buckle fixing member and a male buckle mating member that cooperate with each other; One end of the female buckle fastener is fixed in the blind hole, and the other end is engaged with the female buckle mating part. One end of the male fastener is fixed to the pad, and the other end engages with the male fastener. The other end of the female fastener and the other end of the male fastener are detachably engaged with each other.

[0014] This interlocking design not only ensures the stability of the connection between the seat cushion or backrest and the posture corrector chair body, but also allows for easy separation by applying appropriate external force to the female and male interlocking parts when disassembly is needed. This greatly facilitates the removal, cleaning, and replacement of the seat cushion or backrest. Furthermore, this detachable design provides users with more personalized options, allowing them to change the seat cushion and backrest to different styles, colors, or materials according to their preferences and needs, meeting diverse usage requirements. In addition, this interlocking structure simplifies the structural form as much as possible while ensuring connection strength, reducing manufacturing difficulty and costs, and improving the product's cost-effectiveness and market competitiveness.

[0015] In one possible implementation, the other end of the female buckle fastener is provided with a first annular groove, and one end of the female buckle mating part is provided with a first annular protrusion, the first annular protrusion and the first annular groove engaging with each other.

[0016] In actual operation, the first annular groove and the first annular protrusion can be formed by first placing the female fastener towards the end of the female fastener mating part, passing through the hollow part of the first annular protrusion, and then flattening or knocking the end of the female fastener towards the end of the female fastener mating part to form the first annular groove, thereby achieving the mutual engagement of the first annular groove and the first annular protrusion.

[0017] This design further enhances the connection stability between the female fastener and the female mating component. The precise fit between the first annular groove and the first annular protrusion effectively prevents loosening or detachment during use. Moreover, this locking method ensures a stable connection while also providing a degree of tolerance; even with some installation errors, the connection can still be successfully achieved, improving assembly efficiency and success rate. Simultaneously, the simple structure of the first annular groove and the first annular protrusion makes them easy to manufacture, significantly improving the overall performance and reliability of the product without adding excessive production costs.

[0018] In one possible implementation, the other end of the male fastener extends to the outside of the pad and is provided with a second annular groove, and one end of the male fastener has a second annular protrusion, which extends into the second annular groove and engages with each other; The female fastener has an extension at one end, and the male fastener has an annular groove at the other end. When the female and male fasteners are engaged, the extension extends into the annular groove and engages with each other detachably.

[0019] The principle of the engagement between the second annular groove and the second annular protrusion is the same as that of the engagement between the first annular groove and the first annular protrusion.

[0020] The female fastener has an extension at one end, and the male fastener has an annular groove at the other end. When the female and male fasteners are engaged, the extension extends into the annular groove and engages with each other detachably.

[0021] The double-locking structure of the male and female buckles further enhances the stability of the connection between the seat cushion or backrest and the main body of the posture corrector chair. The groove extending outward from the male buckle fastener interlocks with the protrusion of the male buckle mating part, forming the first layer of stable connection; while the extension of the female buckle mating part extends into the annular groove of the male buckle mating part, forming the second layer of stable protection.

[0022] This double-locking design not only effectively prevents the seat cushion or backrest from loosening or falling off during use, but also greatly enhances the overall structural load-bearing capacity and service life. At the same time, this design maintains its simple structure and ease of manufacturing, without significantly increasing production costs, while significantly improving the overall product performance and user experience.

[0023] As one possible implementation, the extension includes a first structure and a second structure, with a gap between the first structure and the second structure to form a deformation space; The first structure has a wedge-shaped structure, and the external dimension of the wedge-shaped structure is smaller than the internal dimension. When the female and male buckles are engaged, the maximum dimension of the wedge-shaped structure abuts against the edge of the blind hole. The second structure has a raised edge, and the raised edge cooperates with the annular groove.

[0024] The deformation space between the first and second structures allows the extension to undergo a certain elastic deformation when subjected to external forces, thereby better adapting to the shape of the annular groove and achieving a tight fit.

[0025] During the engagement of the female and male buckles, the wedge-shaped structure, with its unique dimensional design, provides precise guidance, ensuring the entire extension smoothly enters the correct position. Simultaneously, because its external dimensions are smaller than its internal dimensions, when compressed by the sidewall of the annular groove, the first structure undergoes a certain degree of elastic deformation within the deformation space, generating an outward elastic force. This force ensures that the maximum size of the wedge-shaped structure firmly abuts against the edge of the blind hole, enhancing the tightness and stability of the engagement. The raised edge of the second structure, in conjunction with the annular groove, further strengthens the engagement, preventing wobbling or detachment, and further restricts the relative displacement between the female and male buckles, preventing loosening in the horizontal direction. This ingenious design, utilizing the characteristics of both the first and second structures and their synergistic effect, ensures both ease of engagement and stability after engagement, providing a reliable and durable connection between the seat cushion or backrest and the main body of the posture corrector chair.

[0026] This ingenious design, through the synergy of the first and second structures, reinforces the engagement of the female and male buckles from multiple directions and angles, making the connection between the seat cushion or backrest and the main body of the posture corrector chair more reliable. Even under prolonged use or under significant external force, it is less likely to loosen or fall off, effectively improving the overall quality and safety of the posture corrector chair.

[0027] As one possible implementation, the depth of the blind hole is not less than the thickness of the female buckle.

[0028] This design ensures that the female buckle can be fully inserted into the blind hole, resulting in a more secure connection between the seat cushion and the posture corrector chair. It prevents the female buckle from being exposed or the connection from becoming loose due to insufficient blind hole depth. At the same time, the depth of the blind hole is also designed to account for wear and tear during actual use, allowing for a certain margin to extend the lifespan of the entire connector.

[0029] As one possible implementation, the thickness of the connector, i.e., the total thickness of the female and male fasteners combined, is not less than the depth of the blind hole.

[0030] During the mating process, the connectors fully fill the blind hole space, preventing instability or wobbling due to insufficient thickness. This dimensional design also reduces the amount of the male buckle protruding beyond the blind hole, minimizing any discomfort caused by it. When the female and male buckles are combined, their overall thickness matches the depth of the blind hole, resulting in a tighter and more secure connection between the seat cushion and the posture corrector chair. Furthermore, the appropriate thickness design also distributes the pressure on the connection points to some extent, reducing the risk of damage caused by excessive localized stress, further enhancing the reliability and durability of the connection structure.

[0031] As one possible implementation, the depth of the blind hole is not less than the thickness of the connector, i.e., the total thickness of the female and male fasteners after they are combined.

[0032] This design ensures a stable connection from a structural perspective. During actual installation, the sufficient depth of the blind holes allows the female buckle to fit smoothly and completely, laying the foundation for a reliable connection between the seat cushion and the posture corrector chair. Furthermore, this depth setting maintains a good connection even under different usage scenarios and frequent disassembly and assembly operations, effectively preventing wear and tear on the blind holes caused by repeated disassembly and assembly, thus greatly enhancing the product's practicality and stability. The entire connector is contained within the blind holes and does not protrude beyond them. The entire connector is painless, including the male buckle.

[0033] In one possible implementation, the female buckle is fixed inside the blind hole by pasting, bonding, or snapping.

[0034] When using the adhesive method, a high-strength, aging-resistant special adhesive can be used to ensure a tight fit between the nut and the inner wall of the blind hole, preventing it from easily falling off during prolonged use. The bonding method utilizes a special adhesive that not only achieves a stable connection but also provides some cushioning, reducing the impact of vibration and other factors on the connection area. The snap-fit ​​method uses the nut's special snap-fit ​​structure to engage with the groove in the blind hole, or an interference fit, achieving quick, convenient, and secure installation. This method is particularly advantageous when frequent seat cushion removal and installation are required, offering simple and effortless operation while ensuring reliable connection. Regardless of the fixing method used, the nut remains stable within the blind hole, providing a reliable guarantee for the connection between the seat cushion and the posture corrector chair.

[0035] The beneficial effects of this utility model are: 1. Tool-free disassembly and assembly are achieved through the interlocking structure of female and male buckles. Seat cushions / backrests can be quickly removed for cleaning or replacement, improving maintenance efficiency by more than 60%, significantly optimizing the user experience, and enabling quick disassembly and assembly for convenient maintenance.

[0036] 2. The blind hole concealed design allows the buckles to be fully embedded in the chair body, with no protruding fasteners on the surface. This maintains the integrity of the streamlined appearance and avoids scratching clothes or skin, making it safer for children to use.

[0037] 3. The two-stage nested structure of the extension and the annular groove, combined with the elastic deformation space, forms a stable connection with low insertion force and high pull-out force, which enhances the resistance to impact and lateral force, making it less prone to loosening during long-term use, ensuring reliable connection and preventing detachment protection.

[0038] 4. Both the female and male buckles adopt a separate structure of fasteners and mating parts. If a part is damaged, it can be replaced individually without scrapping the whole unit, reducing maintenance costs by about 40%. At the same time, it can be used with soft pads of different thicknesses, making it highly versatile.

[0039] 5. The female buckle offers three fixing methods: adhesive, glue, and snap-fit. The optimal process can be selected according to the chair body material (plastic / wood / metal), reducing manufacturing costs by 15%-20%. The snap-fit ​​method also supports later maintenance and replacement, making the process flexible and highly adaptable.

[0040] Most importantly, while maintaining the streamlined and aesthetically pleasing design of the posture corrector chair, it achieves reliable and quick-release of the cushions, solving industry pain points such as difficult maintenance with traditional screw fixings, poor safety of exposed parts, and weak versatility. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the unengaged connector of this utility model; Figure 3 This is a structural schematic diagram of the male buckle of this utility model; Figure 4 This is a schematic diagram of the female buckle of this utility model and its structure in conjunction with the blind hole; Figure 5 This is a detailed structural diagram of the female buckle of this utility model; Figure 6 This is a schematic diagram of the structure of the female and male buckles engaging in this utility model. Figure 7 This is a structural schematic diagram of a specific embodiment of the present invention.

[0042] The labels for the attached figures are as follows: 1. Posture-correcting chair body; 2. Seat cushion; 3. Backrest; 4. Connector; 11. Blind hole; 41. Female buckle; 42. Male buckle; 411. Female buckle fixing piece; 412. Female buckle mating piece; 413. First annular groove; 414. First annular protrusion; 415. Extension; 416. First structure; 417. Second structure; 418. Deformation space; 419. Wedge structure; 4111. Protruding edge; 421. Male buckle fixing piece; 422. Male buckle mating piece; 423. Second annular groove; 424. Second annular protrusion; 425. Annular groove. Detailed Implementation

[0043] The present invention will now be described in detail with reference to the accompanying drawings. Example

[0044] like Figure 1 As shown, a posture correction chair with a detachable cushion includes a posture correction chair body 1, a cushion, and a connector 4; The posture correction chair body 1 has a streamlined structure; The pad is detachably connected to the surface of the posture correction chair body by at least one connector 4; The cushion body includes a seat cushion 2 and a backrest 3; The connector 4 includes a female buckle 41 and a male buckle 42. The female buckle 41 is fixedly connected to the posture correction chair body 1, and the male buckle 42 is fixedly connected to the cushion body. The female buckle 41 and the male buckle 42 are detachably engaged with each other.

[0045] Both the seat cushion 2 and the backrest 3 can be soft cushions.

[0046] This design allows for easy separation of the seat cushion 2 or backrest 3 by simply pulling the male snap 42 out of the female snap 41, without the need for any tools, greatly improving the convenience of disassembly. Similarly, during installation, simply align the male snap 42 with the female snap 41 and press firmly to complete the process; the operation is simple and quick. In other words, both installation and disassembly can be completed with one hand. (See attached diagram.) Figure 2 , Figure 6 or Figure 7As shown, during installation, simply hold the male buckle 42 on the seat cushion 2 or backrest 3 with one hand, align it with the female buckle 41 on the posture correction chair body 1, and press it down to complete the installation. No hands are required. Disassembly is even simpler; just hold one corner of the seat cushion 2 or backrest 3 with one hand and pull or lift it open to remove it, just like a button on clothing—a single pull is all it takes to detach it, which is very convenient. Furthermore, this connection method is strong and reliable, ensuring that the seat cushion 2 and backrest 3 will not loosen or fall off during normal use, improving the product's reliability and durability. In addition, the integrated design of the posture correction chair body 1 makes the overall structure of the posture correction chair simpler, and the cushion is directly and detachably installed to the posture correction chair body 1, eliminating the indirect detachment scheme of existing technologies that rely on other components. This reduces unnecessary additional parts, lowers material and labor costs, facilitates product production and quality control management, and achieves truly direct and detachable installation.

[0047] In one embodiment, such as Figure 4 As shown, it also includes blind holes 11, which are located on the side of the posture corrector chair body facing the cushion and correspond one-to-one with the position of the female buckle. The female buckle is fixed in the blind hole 11.

[0048] The design of the blind hole 11 not only provides a stable installation position for the female buckle 41, but also provides space for it, making the entire connection structure more concealed and aesthetically pleasing. When the female buckle 41 is fixed to the surface of the posture correction chair body 1 and the seat cushion 2 or backrest 3 is installed, the female buckle 41 protrudes from the surface of the body, which can cause stinging pain to the user during use. In severe cases, it can even damage the connector because it will be under constant pressure. Therefore, fixing the female buckle 41 within the blind hole 11 solves the problems of stinging pain and damage. Because the female buckle 41 is hidden within the blind hole 11, the user will hardly notice the existence of the connector 4 when using the posture correction chair normally, especially when looking from the back of the posture correction chair body, thus improving the overall appearance and user experience of the product. At the same time, the one-to-one correspondence between the blind hole 11 and the female buckle 41 ensures that each female buckle 41 can be accurately installed in the predetermined position, further enhancing the accuracy and reliability of the connection. This attention to detail fully reflects the refinement and human-centered considerations of the product design.

[0049] The design of the female buckle 41 being fixed inside the blind hole 11 and the male buckle 42 being fixed on the pad ensures that the entire connector will not fall off or be lost during disassembly and installation.

[0050] In a more specific embodiment, such as Figure 2 , Figure 6 and Figure 7As shown, the female buckle 41 has a female buckle fixing member 411 and a female buckle mating member 412 that cooperate with each other, and the male buckle 42 has a male buckle fixing member 421 and a male buckle mating member that cooperates with each other; One end of the female buckle fastener 411 is fixed in the blind hole 11, and the other end is engaged with the female buckle mating part 412. One end of the male buckle fastener 421 is fixed to the cushion body, i.e., the seat cushion 2 or the backrest 3, and the other end is engaged with the male buckle 42 mating part; The other end of the female buckle 41 and the other end of the male buckle 42 are detachably engaged with each other.

[0051] This interlocking structure design not only ensures the stability of the connection between the seat cushion 2 or backrest 3 and the posture-correcting chair body 1, but also allows for easy separation when disassembly is required. Simply apply appropriate external force to the female snap fastener 412 and male snap fastener 42 to facilitate disassembly, cleaning, and replacement. Furthermore, this detachable design provides users with more personalized options, allowing them to replace the seat cushion 2 and backrest 3 with different styles, colors, or materials according to their preferences and needs, meeting diverse usage requirements. In addition, this interlocking structure simplifies the structural form as much as possible while ensuring connection strength, reducing manufacturing difficulty and costs, and improving the product's cost-effectiveness and market competitiveness.

[0052] In addition, for a more stable connection, such as Figure 5 As shown, the other end of the female buckle fixing member 411 is provided with a first annular groove 413, and one end of the female buckle mating member 412 is provided with a first annular protrusion 414. The first annular protrusion 414 and the first annular groove 413 engage with each other.

[0053] In actual operation, the first annular groove 413 and the first annular protrusion 414 can be formed by first passing the end of the female fastener 411 facing the female fastener 412 through the hollow part of the first annular protrusion 414, and then flattening or knocking the end of the female fastener 411 facing the female fastener 412 to form the first annular groove 413, thereby realizing the mutual engagement of the first annular groove 413 and the first annular protrusion 414.

[0054] This design further enhances the connection stability between the female fastener 411 and the female fastener mating part 412. The precise fit between the first annular groove 413 and the first annular protrusion 414 effectively prevents loosening or detachment during use. Moreover, this locking method ensures a stable connection while also providing a certain degree of tolerance; even with some installation errors, locking can still be achieved smoothly, improving assembly efficiency and success rate. Simultaneously, the simple structure of the first annular groove 413 and the first annular protrusion 414 makes them easy to manufacture, without significantly increasing production costs, while significantly improving the overall performance and reliability of the product.

[0055] As one possible implementation method, such as Figure 3 As shown, the other end of the male fastener 421 extends to the outside of the seat cushion 2 or the backrest 3 and is provided with a groove 423. One end of the male fastener 42 mating part has a protrusion 424, which extends into the groove 423 and engages with each other. The female fastener 412 has an extension 415 at one end, and the male fastener 42 has an annular groove 425 at the other end. When the female fastener 41 and the male fastener 42 are engaged, the extension 415 extends into the annular groove 425 and is detachably engaged with each other.

[0056] The double-locking structure of the male buckle 42 and the female buckle 41 further enhances the stability of the connection between the seat cushion 2 or backrest 3 and the posture correction chair body 1. The groove 423 extending outward from the male buckle fastener 421 engages with the protrusion 424 of the male buckle 42 mating part, forming the first layer of stable connection; while the extension 415 of the female buckle mating part 412 extends into the annular groove 425 of the male buckle 42 mating part, thus forming the second layer of stable protection.

[0057] This double-locking mechanism not only effectively prevents the seat cushion 2 or backrest 3 from loosening or falling off during use, but also greatly enhances the overall structural load-bearing capacity and service life. At the same time, this design maintains its simple structure and ease of manufacturing, without significantly increasing production costs, while significantly improving the overall product performance and user experience.

[0058] In a specific embodiment, such as Figure 5 As shown, the extension 415 includes a first structure 416 and a second structure 417, and there is a gap between the first structure 416 and the second structure 417 to form a deformation space 418. The first structure 416 has a wedge-shaped structure 419, and the outer dimension of the wedge-shaped structure 419 is smaller than the inner dimension. When the female buckle 41 and the male buckle 42 are engaged with each other, the maximum dimension of the wedge-shaped structure 419 abuts against the edge of the blind hole 11. The second structure 417 has a raised edge 4111, and the raised edge 4111 cooperates with the annular groove 425.

[0059] The deformation space 418 between the first structure 416 and the second structure 417 allows the extension 415 to undergo a certain elastic deformation when subjected to external force, thereby better adapting to the shape of the annular groove 425 and achieving a tight fit.

[0060] During the engagement of the female buckle 41 and male buckle 42, the wedge-shaped structure 419, with its unique dimensional design, plays a precise guiding role, directing the entire extension 415 smoothly into the appropriate position. Simultaneously, because its external dimensions are smaller than its internal dimensions, when compressed by the sidewall of the annular groove 425, the first structure 416 undergoes a certain degree of elastic deformation within the deformation space 418, generating an outward elastic force. This force causes the maximum size of the wedge-shaped structure 419 to tightly abut against the edge of the blind hole 11, enhancing the tightness and stability of the engagement. Furthermore, the protruding edge 4111 of the second structure 417 cooperates with the annular groove 425, further enhancing the tightness of the engagement, preventing wobbling or disengagement, and further limiting the relative displacement between the female buckle 41 and male buckle 42, preventing loosening in the horizontal direction. This ingenious design utilizes the characteristics of the first structure 416 and the second structure 417, as well as their synergistic effect, to ensure both the ease of engagement and the stability after engagement, providing a reliable and durable connection between the seat cushion 2 or backrest 3 and the posture corrector chair body 1.

[0061] This ingenious design, through the synergistic effect of the first structure 416 and the second structure 417, reinforces the engagement of the female buckle 41 and the male buckle 42 from multiple directions and angles, making the connection between the seat cushion 2 or backrest 3 and the posture correction chair body 1 more reliable. Even under prolonged use or under the influence of large external forces, it is not easy for it to loosen or fall off, effectively improving the overall quality and safety of the posture correction chair.

[0062] In one embodiment, the depth of the blind hole 11 is not less than the thickness of the female buckle 41. For example... Figure 4 As shown, the blind hole depth H1 is greater than or equal to the female buckle thickness H2, and the female buckle will not protrude outside the blind hole.

[0063] This design ensures that the female buckle 41 can be fully inserted into the blind hole 11, thus making the connection between the seat cushion 2 and the posture corrector chair more secure and preventing the female buckle 41 from being exposed or the connection from becoming loose due to insufficient depth of the blind hole 11. At the same time, the depth of the blind hole 11 is also designed to take into account wear factors in actual use, leaving a certain margin to extend the service life of the entire connector 4.

[0064] In another embodiment, the thickness of the connector 4, i.e., the total thickness of the female buckle 41 and the male buckle 42 combined, is not less than the depth of the blind hole 11. That is, as... Figure 7 As shown, the thickness H3 of connector 4 is greater than the depth H1 of blind hole 11 and the thickness H2 of female buckle 41.

[0065] During the interaction, connector 4 fully fills the space of blind hole 11, preventing instability or wobbling due to insufficient thickness. This size design also reduces the portion of male buckle 42 protruding beyond blind hole 11, minimizing any stinging sensation. When female buckle 41 and male buckle 42 are combined, their overall thickness matches the depth of blind hole 11, resulting in a tighter and more secure connection between seat cushion 2 and posture corrector chair. Furthermore, the reasonable thickness design also distributes the pressure on the connection points to some extent, reducing the risk of damage due to excessive localized stress, further enhancing the reliability and durability of the connection structure.

[0066] In another embodiment, the depth of the blind hole 11 is not less than the thickness of the connector 4, that is, the total thickness of the female buckle 41 and the male buckle 42 after they are combined, that is, the depth H1 of the blind hole 11 is greater than or equal to the thickness H3 of the connector 4.

[0067] This design ensures the stability of the connection from a structural perspective. During actual installation, the sufficient depth of the blind hole 11 allows the female buckle 41 to be smoothly and completely inserted, laying the foundation for a reliable connection between the seat cushion 2 and the posture corrector chair. Furthermore, this depth setting maintains a good connection even under different usage scenarios and frequent disassembly and assembly operations, effectively preventing wear on the blind hole 11 caused by repeated disassembly and assembly, thus greatly enhancing the product's practicality and stability. The entire connector 4 is contained within the blind hole 11 and does not protrude beyond it. The entire connector 4 does not cause any stinging sensation, meaning the male buckle 42 also does not cause any stinging sensation.

[0068] Finally, in all embodiments, the female buckle 41 is fixed in the blind hole 11 by pasting, bonding, or snapping.

[0069] When using the adhesive method, a high-strength, aging-resistant special adhesive can be used to ensure a tight fit between the female buckle 41 and the inner wall of the blind hole 11, preventing it from easily falling off during long-term use. The bonding method utilizes a special adhesive, which not only achieves a stable connection but also provides a certain degree of cushioning, reducing the impact of vibration and other factors on the connection area. The snap-fit ​​method uses the special snap-fit ​​structure of the female buckle 41 to engage with the slot within the blind hole 11, or an interference fit, achieving quick, convenient, and secure installation. This installation method is particularly advantageous when frequent disassembly and reassembly of the seat cushion 2 is required, offering simple and labor-saving operation while ensuring reliable connection. Regardless of the fixing method used, the female buckle 41 remains stable within the blind hole 11, providing a reliable guarantee for the connection between the seat cushion 2 and the posture corrector chair.

[0070] The above description is only a preferred embodiment of the present utility model and does not limit the scope of patent protection of the present utility model. Any equivalent structural transformations made based on the content of the present utility model specification and drawings, whether directly or indirectly applied to other related technical fields, are similarly included within the scope of protection of the present utility model.

Claims

1. A posture-correcting chair with a detachable cushion, characterized in that, Includes the main body of the posture correction chair, the cushion, and the connecting parts; The posture correction chair has a streamlined structure. The pad is detachably connected to the surface of the posture correction chair body via at least one connector; The cushion includes a seat cushion and a backrest; The connector includes a female buckle and a male buckle. The female buckle is fixedly connected to the main body of the posture correction chair, and the male buckle is fixedly connected to the pad. The female buckle and the male buckle can be detachably engaged with each other.

2. The posture-correcting chair with a detachable cushion as described in claim 1, characterized in that, It also includes blind holes, which are located on the side of the posture corrector chair body facing the cushion and correspond one-to-one with the position of the female buckle, and the female buckle is fixed in the blind hole.

3. The posture-correcting chair with a detachable cushion as described in claim 2, characterized in that, The female buckle has a female buckle fixing component and a female buckle mating component that cooperate with each other; the male buckle has a male buckle fixing component and a male buckle mating component that cooperate with each other. One end of the female buckle fastener is fixed in the blind hole, and the other end is engaged with the female buckle mating part. One end of the male fastener is fixed to the pad, and the other end engages with the male fastener. The other end of the female fastener and the other end of the male fastener are detachably engaged with each other.

4. The posture-correcting chair with a detachable cushion as described in claim 3, characterized in that, The other end of the female buckle fastener is provided with a first annular groove, and one end of the female buckle mating part is provided with a first annular protrusion, the first annular protrusion and the first annular groove engaging with each other.

5. The posture correction chair with a detachable cushion as described in claim 3, characterized in that, The other end of the male fastener extends to the outside of the pad and is provided with a second annular groove. One end of the male fastener has a second annular protrusion, and the second annular protrusion extends into the second annular groove and engages with each other. The female fastener has an extension at one end, and the male fastener has an annular groove at the other end. When the female and male fasteners are engaged, the extension extends into the annular groove and engages with each other detachably.

6. The posture-correcting chair with a detachable cushion as described in claim 5, characterized in that, The extension includes a first structure and a second structure, with a gap between the first structure and the second structure to form a deformation space; The first structure has a wedge-shaped structure, and the external dimension of the wedge-shaped structure is smaller than the internal dimension. When the female and male buckles are engaged, the maximum dimension of the wedge-shaped structure abuts against the edge of the blind hole. The second structure has a raised edge, and the raised edge cooperates with the annular groove.

7. The posture-correcting chair with a detachable cushion as described in claim 2, characterized in that, The depth of the blind hole is not less than the thickness of the female buckle.

8. The posture-correcting chair with a detachable cushion as described in claim 7, characterized in that, The thickness of the connector, i.e., the total thickness of the female and male fasteners combined, shall not be less than the depth of the blind hole.

9. A posture-correcting chair with a detachable cushion as described in claim 2, characterized in that, The depth of the blind hole is not less than the thickness of the connector, i.e., the total thickness of the female and male fasteners combined.

10. A posture-correcting chair with a detachable cushion as described in claim 2, characterized in that, The female buckle is fixed inside the blind hole by pasting, adhesive, or snapping.

Images