Chair seat

By introducing elastic parts into the seat, dispersing the pressure on the mesh, the problems of poor comfort and easy deformation of the mesh seat are solved, and higher comfort and service life are achieved.

CN222764970UActive Publication Date: 2025-04-18SHENZHEN MICROTOUCH ERGONOMIC TECH
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Patent Information

Application Number
CN202421701353.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-17
Publication Date
2025-04-18
Estimated Expiration
2034-07-17

AI Technical Summary

Technical Problem

The existing mesh seats are prone to lose their rebound force after long-term use, permanent deformation or collapse, and have poor comfort and high maintenance and replacement costs.

Method used

A seat including a support body, a seat body and an elastic member is designed. The seat body consists of a seat frame and a mesh wrapped around one side of the seat frame. The seat frame is movably connected to the support body. The elastic member is arranged between the support body and the mesh, and elastic deformation can occur to disperse the pressure on the mesh.

Benefits of technology

The elastic deformation of the elastic member disperses the pressure on the mesh, reducing the tension of the mesh, improving the comfort of the chair; at the same time, reducing the deformation of the mesh, preventing permanent deformation and collapse, and extending the service life of the chair.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a chair seat. The chair seat comprises a support body, a seat body and an elastic piece, the seat body comprises a seat frame and screen cloth covering one side of the seat frame; the seat frame is movably connected to the support body and has an open position and a closed position relative to the support body. The elastic piece is arranged between the supporting body and the screen cloth so as to generate elastic deformation to disperse pressure on the screen cloth. The screen cloth and the elastic piece can provide supporting force, and after the elastic piece deforms under stress, the pressure of the screen cloth can be dispersed, so that the tightening degree of the screen cloth is reduced, and the comfort level of the chair seat is improved; meanwhile, when the pressure borne by the screen cloth is reduced, the deformation quantity of the screen cloth is correspondingly reduced, so that the deformation quantity of the screen cloth is kept within the elastic limit, the screen cloth cannot be permanently deformed or even collapsed due to loss of resilience force after being used for a long time, the reliability of the chair seat is improved, and the service life of the chair seat is prolonged.
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Description

Technical Field

[0001] The utility model relates to the field of seats, in particular to a chair seat. Background Art

[0002] Since the air permeability of sponge chair seats is poor, many people have designed different mesh chair seats. The mesh chair seat structures in the prior art include the following two types: one mesh chair seat includes a plastic support frame fixed on the functional chassis of the chair, an inner frame arranged inside the plastic support frame, a taut mesh fabric is fixed around the inner frame, and then the inner frame with the mesh fabric fixed is placed in the plastic support frame and fixedly connected by buckles or screws; the other mesh chair seat includes a plastic support frame fixed on the functional chassis of the chair, a circle of grooves of a specific width is arranged around the plastic support frame, and then a rubber strip of a specific thickness is sewn around the mesh of a corresponding shape, and the rubber strip sewn with the mesh is embedded in the grooves around the plastic support frame and fixed.

[0003] The advantage of the above two mesh seat structures is that they are more breathable than traditional sponge seats, but the disadvantages are also obvious:

[0004] 1. The comfort of the mesh seat needs to be improved. When the user sits on the sponge seat, the weight of the body is dispersed from top to bottom on the sponge in contact. However, for the mesh seat mentioned above, the weight of the upper part of the user's body is pressed on the suspended mesh fixed around the seat, causing the mesh to be evenly tightened, which not only reduces the force-bearing area but also increases the pressure on the unit force-bearing part. At the same time, the user sits on a tight hard material, and the comfort is naturally not very good;

[0005] 2. The suspended mesh fabrics of these mesh chair seats are prone to lose resilience and become permanently deformed or even collapsed after long-term use, especially when the user is heavy.

[0006] 3. Since the mesh and plastic support frame of the mesh seat are fixedly connected, if the seat needs to be replaced after sales after the mesh is deformed or collapsed, the entire seat including the plastic support frame needs to be replaced. Not only is the after-sales material cost high, the freight is also expensive, and the disassembly and assembly is also complicated. Utility Model Content

[0007] Based on this, it is necessary to provide a chair seat to address the above-mentioned problems of the mesh chair seat in the prior art.

[0008] The technical solution is as follows:

[0009] In one aspect, a chair seat is provided, comprising:

[0010] Supporting the body;

[0011] The seat body comprises a seat frame and a mesh covering one side of the seat frame; the seat frame is movably connected to the support body and has an open position and a closed position relative to the support body; and

[0012] An elastic member, disposed between the supporting body and the mesh, capable of elastically deforming to disperse the pressure on the mesh;

[0013] Wherein, when the seat frame is in an open position, the seat frame is opened relative to the support body to form a receiving and placing opening for taking and placing the elastic member; when the seat frame is in a closed position, the seat frame is closed relative to the support body and together with the mesh cloth forms a receiving cavity for accommodating the elastic member.

[0014] In the chair seat of the above embodiment, when the user sits on the chair seat, the mesh and the elastic member can both provide support force, and after the elastic member is deformed by force, it can disperse the pressure of the mesh, so that the tension of the mesh is reduced, and the comfort of the chair seat is improved; at the same time, when the pressure on the mesh is reduced, its deformation is also reduced accordingly, so that the deformation of the mesh is kept within the elastic limit, thereby ensuring that the mesh will not cause permanent deformation or even collapse due to loss of resilience after long-term use, thereby improving the reliability and service life of the chair seat. When the user needs to adjust the comfort of the chair seat, the seat frame is switched from the closed position to the open position to form a take-in and put-out port. The user can replace or adjust the elastic member according to his or her own situation (such as weight and sitting posture habits) and through the take-in and put-out port, so that the elastic member can disperse different pressures, ensure that the pressure on the mesh is kept within a comfortable range, and improve the practicality of the chair seat. After the replacement or adjustment of the elastic member is completed, the seat frame is reset to the closed position, and the seat frame, the mesh and the support body together form a accommodating cavity for accommodating the elastic member, which is simple and convenient to operate.

[0015] The technical solution is further described below:

[0016] In one embodiment, the seat frame is rotatably connected to the support body and can be switched between an open position and a closed position relative to the support body.

[0017] In one embodiment, a first mounting portion and a second mounting portion are respectively provided at the positions where the seat frame and the support body are connected to each other, the first mounting portion is provided with a first mounting hole, the second mounting portion is provided with a second mounting hole, the second mounting hole is provided with a corresponding arrangement to the first mounting hole, and the seat further includes a rotating shaft, the rotating shaft passes through the first mounting hole and the second mounting hole, and rotatably connects the first mounting portion with the second mounting portion.

[0018] In one embodiment, a third mounting portion is further provided at the position where the seat frame is connected to the support body. The third mounting portion and the first mounting portion are spaced apart on both sides of the second mounting portion along the axial direction of the first mounting hole. A blind hole corresponding to the second mounting hole is provided on one side of the third mounting portion close to the second mounting portion. The rotating shaft extends into the blind hole and cooperates with the inner wall of the blind hole.

[0019] In one embodiment, the chair seat further comprises a locking member, and the locking member is used to lock the seat frame and the support body when the seat frame is in the closed position.

[0020] In one embodiment, the locking member is mounted on the supporting body, the seat frame is provided with a plug-in portion extending toward the supporting body, the supporting body is provided with a first slot corresponding to the plug-in portion, when the seat frame is in a closed position, the plug-in portion is plugged into and matched with the first slot, and the locking member is used to lock the plug-in portion into and match with the supporting body.

[0021] In one embodiment, the plug-in portion is provided with a second slot, the inner side wall of the first slot is provided with a locking hole, and the locking member is slidably matched with the support body so as to be able to pass through the locking hole and extend into the second slot when the seat frame is in the closed position.

[0022] In one of the embodiments, the locking member is provided with an operating portion, and the operating portion is used to receive a driving force that causes the locking member to slide relative to the supporting body along the axial direction of the locking hole.

[0023] In one of the embodiments, the support body is provided with at least one air vent, and each of the air vents is configured to communicate with the accommodating cavity when the seat frame is in the closed position.

[0024] In one embodiment, the elastic member includes a spring layer;

[0025] And / or, the elastic member comprises a TPE material layer;

[0026] And / or, the elastic member includes a sponge layer;

[0027] And / or, the elastic member comprises a 3D breathable material layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application.

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 The figure is a schematic structural diagram of a chair seat in a closed state according to an embodiment.

[0031] Figure 2 for Figure 1 Schematic diagram of the structure of the chair seat when it is in an open state.

[0032] Figure 3 for Figure 1 Exploded view of the chair seat.

[0033] Description of reference numerals:

[0034] 10. Seat; 100. Support body; 111. Air vent; 112. Second mounting portion; 113. Second mounting hole; 114. First slot; 115. Locking hole; 200. Seat body; 210. Seat frame; 211. First mounting portion; 212. First mounting hole; 213. Rotating shaft; 214. Third mounting portion; 215. Blind hole; 216. Plug-in portion; 217. Second slot; 220. Mesh; 300. Elastic member; 410. Removal and take-out port; 420. Accommodation cavity; 500. Locking member; 510. Operating portion. DETAILED DESCRIPTION

[0035] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0036] like Figure 1 , Figure 2 and Figure 3As shown, in one embodiment, a chair seat 10 is provided, comprising a support body 100, a seat body 200 and an elastic member 300. The seat body 200 comprises a seat frame 210 and a mesh 220 covering one side of the seat frame 210; the seat frame 210 is movably connected to the support body 100 and has an open position and a closed position relative to the support body 100. The elastic member 300 is arranged between the support body 100 and the mesh 220 so as to be able to undergo elastic deformation to disperse the pressure on the mesh 220. When the seat frame 210 is in the open position, the seat frame 210 is open relative to the support body 100 to form a take-in and take-out opening 410 for taking and putting the elastic member 300; when the seat frame 210 is in the closed position, the seat frame 210 is closed relative to the support body 100, and together with the mesh 220, forms a receiving cavity 420 for accommodating the elastic member 300.

[0037] In the chair seat 10 in the above embodiment, when the user sits on the chair seat 10, the mesh 220 and the elastic member 300 can both provide supporting force, and after the elastic member 300 is deformed by the force, it can disperse the pressure of the mesh 220, so that the tension of the mesh 220 is reduced, thereby improving the comfort of the chair seat 10; at the same time, when the pressure on the mesh 220 is reduced, its deformation is also reduced accordingly, so that the deformation of the mesh 220 is kept within the elastic limit, thereby ensuring that the mesh 220 will not cause permanent deformation or even collapse due to loss of resilience after long-term use, thereby improving the reliability and service life of the chair seat 10. When the user needs to adjust the comfort of the seat 10, the seat frame 210 is switched from the closed position to the open position to form the access opening 410. The user can replace or adjust the elastic member 300 according to his or her own situation (such as weight and sitting posture habits) through the access opening 410, so that the elastic member 300 can disperse pressures of different sizes, ensuring that the pressure on the mesh 220 remains within a comfortable range, thereby improving the practicality of the seat 10. After the replacement or adjustment of the elastic member 300 is completed, the seat frame 210 is reset to the closed position, and the seat frame 210, the mesh 220 and the support body 100 together form a receiving cavity 420 for receiving the elastic member 300, which is simple and convenient to operate.

[0038] The support body 100 may be configured as a support frame, a support plate or other support structures, and the mesh 220 may be wrapped around one side of the seat frame 210 by any method in the prior art, which is not limited here.

[0039] like Figure 2 and Figure 3 As shown, optionally, the support body 100 is provided with at least one vent hole 111, and each vent hole 111 is configured to communicate with the accommodating cavity 420 when the seat frame 210 is in the closed position. In this way, the accommodating cavity 420 can communicate with the external environment through the vent hole 111, thereby improving the air permeability of the seat 10.

[0040] Specifically in this embodiment, each of the air holes 111 penetrates from the top wall of the support body 100 to the bottom wall of the support body 100. All the air holes 111 are arranged on the support body 100 in an array.

[0041] The elastic member 300 can be configured as any elastic structure in the prior art, such as a single-layer structure, a double-layer structure or a multi-layer structure.

[0042] Optionally, the elastic member 300 includes a spring layer. The elastic layer includes a plurality of springs arranged vertically. All the springs are arranged in an array.

[0043] Optionally, the elastic member 300 includes a TPE (Thermoplastic elastomers) material layer, which is in a honeycomb shape.

[0044] Optionally, the elastic member 300 includes a sponge layer. The sponge layer can be a common sponge layer or a memory sponge layer. The sponge layer is perforated.

[0045] Optionally, the elastic member 300 includes a 3D breathable material layer.

[0046] Specifically in this embodiment, the elastic member 300 is clamped between the mesh 220 and the support body 100. In this way, the position of the elastic member 300 relative to the mesh 220 remains fixed so as to stably disperse the pressure and improve the reliability of the seat 10.

[0047] like Figure 1 , Figure 2 and Figure 3 As shown, in one embodiment, the seat frame 210 is rotatably connected to the support body 100 and can be switched between an open position and a closed position relative to the support body 100. In this way, the seat frame 210 can be quickly and accurately switched between the open position and the closed position, thereby improving the practicality of the seat 10.

[0048] Specifically in this embodiment, one side of the seat frame 210 is rotatably connected to one side of the support body 100. The seat frame 210 is detachable from the support body 100. In other embodiments, the seat frame 210 can also be slidably connected to the support body 100 and can be switched between an open position and a closed position relative to the support body 100.

[0049] like Figure 3As shown, further, the first mounting portion 211 and the second mounting portion 112 are respectively provided at the positions where the seat frame 210 and the support body 100 are connected to each other, the first mounting portion 211 is provided with a first mounting hole 212, the second mounting portion 112 is provided with a second mounting hole 113, and the second mounting hole 113 is provided corresponding to the first mounting hole 212, and the seat 10 further includes a rotating shaft 213, the rotating shaft 213 is passed through the first mounting hole 212 and the second mounting hole 113, and the first mounting portion 211 is rotatably connected to the second mounting portion 112. In this way, the first mounting portion 211, the second mounting portion 112 and the rotating shaft 213 are detachable, so that the seat frame 210 and the support body 100 can be replaced separately according to the actual use needs, which is convenient for the maintenance and after-sales of the seat 10, and reduces the after-sales cost of the seat 10.

[0050] like Figure 3 As shown, optionally, a third mounting portion 214 is further provided at the position where the seat frame 210 is connected to the supporting body 100. The third mounting portion 214 and the first mounting portion 211 are spaced apart on both sides of the second mounting portion 112 along the axial direction of the first mounting hole 212. A blind hole 215 corresponding to the second mounting hole 113 is provided on one side of the third mounting portion 214 close to the second mounting portion 112. The rotating shaft 213 extends into the blind hole 215 and is limitedly engaged with the inner wall of the blind hole 215. In this way, the blind hole 215 can play a role in positioning the rotating shaft 213, ensuring that the rotating shaft 213 can be quickly and accurately installed to the preset position, and is rotationally engaged with the first mounting portion 211, the second mounting portion 112 and the third mounting portion 214, thereby improving the convenience of assembling the seat 10.

[0051] Specifically in this embodiment, the first mounting portion 211 and the third mounting portion 214 are both correspondingly disposed on the seat frame 210, and the second mounting portion 112 is correspondingly disposed on the support body 100. In other embodiments, the first mounting portion 211 and the third mounting portion 214 may also be correspondingly disposed on the support body 100, and the second mounting portion 112 is correspondingly disposed on the seat frame 210.

[0052] like Figure 2 and Figure 3 As shown, in one embodiment, the seat 10 further includes a locking member 500, which is used to lock the seat frame 210 and the support body 100 when the seat frame 210 is in the closed position. In this way, the locking member 500 can lock the seat frame 210 and the support body 100 into one, ensuring that the seat frame 210 and the support body 100 will not move relative to each other during use, thereby improving the reliability of the seat 10.

[0053] The locking member 500 may be a clamp, a lock, a bolt or other locking structures. The locking member 500 may be installed on any side of the support body 100. Specifically in this embodiment, the locking member 500 is installed on a side of the support body 100 away from the second mounting portion 112.

[0054] like Figure 2 and Figure 3 As shown, further, the locking member 500 is installed on the support body 100, the seat frame 210 is provided with a plug-in portion 216 extending toward the support body 100, and the support body 100 is provided with a first slot 114 corresponding to the plug-in portion 216. When the seat frame 210 is in the closed position, the plug-in portion 216 is plugged and matched with the first slot 114, and the locking member 500 is used to lock the plug-in portion 216 with the support body 100. In this way, the locking member 500 can lock the seat frame 210 and the support body 100 as a whole through the plug-in portion 216, thereby improving the convenience of assembling the seat 10.

[0055] In other embodiments, the locking member 500 and the first slot 114 may also be correspondingly arranged on the seat frame 210, and the plug-in portion 216 may be correspondingly arranged on the support body 100. The structure and working principle thereof are the same or similar to those described above and will not be described in detail here.

[0056] like Figure 2 and Figure 3 As shown, optionally, the plug-in portion 216 is provided with a second slot 217, the inner side wall of the first slot 114 is provided with a locking hole 115, and the locking member 500 is slidably matched with the support body 100 so as to be able to pass through the locking hole 115 and extend into the second slot 217 when the seat frame 210 is in the closed position. In this way, the locking member 500 is integrated with the support body 100, which is convenient for locking the seat frame 210 with the support body 100, while reducing the installation space of the locking member 500 and improving the practicality of the seat 10.

[0057] Specifically in this embodiment, the plug-in portion 216 can be configured as an insert block. The plug-in portion 216 is integrally formed with the seat frame 210. The second slot 217 passes through the plug-in portion 216.

[0058] like Figure 2 and Figure 3 As shown, the locking member 500 is optionally provided with an operating portion 510, and the operating portion 510 is used to receive a driving force that causes the locking member 500 to slide relative to the support body 100 along the axial direction of the locking hole 115. In this way, the operating portion 510 can receive an external driving force to drive the locking member 500 to slide back and forth relative to the support body 100 along the axial direction of the locking hole 115, thereby improving the practicality of the seat 10.

[0059] Specifically in this embodiment, the operating portion 510 can be configured as an operating handle.

[0060] In one embodiment, a chair is provided, comprising a chair frame and a seat 10 in any one of the above embodiments, wherein the seat 10 is mounted on the chair frame.

[0061] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0062] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0063] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0064] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0065] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0066] It should also be understood that when explaining the connection relationship or positional relationship of elements, although not explicitly described, the connection relationship and positional relationship are interpreted as including an error range, which should be within the acceptable deviation range of a specific value determined by those skilled in the art. For example, "approximately", "approximately" or "substantially" may mean within one or more standard deviations, which are not limited here.

[0067] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0068] The above embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A chair seat, characterized in that: include: Supporting the body; The seat body comprises a seat frame and a mesh covering one side of the seat frame; The seat frame is movably connected to the support body and has an open position and a closed position relative to the support body; and An elastic member, disposed between the supporting body and the mesh, capable of elastically deforming to disperse the pressure on the mesh; Wherein, when the seat frame is in the open position, the seat frame is opened relative to the support body to form a receiving and placing opening for taking and placing the elastic member; When the seat frame is in the closed position, the seat frame is closed relative to the support body and is enclosed together with the mesh cloth to form a receiving cavity for receiving the elastic member.

2. The chair seat according to claim 1, characterized in that: The seat frame is rotatably connected to the support body and can be switched between an open position and a closed position relative to the support body.

3. The chair seat according to claim 2, characterized in that: The first mounting portion and the second mounting portion are respectively provided at the positions where the seat frame and the support body are connected to each other. The first mounting portion is provided with a first mounting hole, and the second mounting portion is provided with a second mounting hole. The second mounting hole is arranged corresponding to the first mounting hole. The seat also includes a rotating shaft, which passes through the first mounting hole and the second mounting hole and rotatably connects the first mounting portion with the second mounting portion.

4. The chair seat according to claim 3, characterized in that: A third mounting portion is also provided at the position where the seat frame is connected to the support body. The third mounting portion and the first mounting portion are spaced apart on both sides of the second mounting portion along the axial direction of the first mounting hole. A blind hole corresponding to the second mounting hole is provided on one side of the third mounting portion close to the second mounting portion. The rotating shaft extends into the blind hole and cooperates with the inner wall of the blind hole.

5. The chair seat according to claim 2, characterized in that: The seat further comprises a locking member, which is used for locking the seat frame and the support body when the seat frame is in a closed position.

6. The chair seat according to claim 5, characterized in that: The locking piece is mounted on the supporting body, the seat frame is provided with a plug-in portion extending toward the supporting body, the supporting body is provided with a first slot corresponding to the plug-in portion, when the seat frame is in a closed position, the plug-in portion is plugged into and matched with the first slot, and the locking piece is used to lock the plug-in portion into and match with the supporting body.

7. The chair seat according to claim 6, characterized in that: The plug-in portion is provided with a second slot, the inner side wall of the first slot is provided with a locking hole, and the locking member is slidably matched with the support body so as to pass through the locking hole and extend into the second slot when the seat frame is in the closed position.

8. The chair seat according to claim 7, characterized in that: The locking member is provided with an operating portion, and the operating portion is used to receive a driving force that causes the locking member to slide relative to the supporting body along the axial direction of the locking hole.

9. The chair seat according to any one of claims 1 to 8, characterized in that: The support body is provided with at least one air vent, and each of the air vents is configured to communicate with the accommodating cavity when the seat frame is in the closed position.

10. The chair seat according to any one of claims 1 to 8, characterized in that: The elastic member comprises a spring layer; And / or, the elastic member comprises a TPE material layer; And / or, the elastic member includes a sponge layer; And / or, the elastic member comprises a 3D breathable material layer.