Seat frame and seat with same

Abstract

The utility model discloses a seat frame and a seat with the seat frame, the seat frame comprises a seat frame body, the seat frame further comprises a limiting assembly arranged on the seat frame body and a controller connected with the limiting assembly, and the controller is provided with a containing position and an exposed position relative to the seat frame body. The limiting assembly is configured to limit the controller to be switched between the storage position and the exposure position when the controller is located at the storage position and the exposure position. The controller is configured to be capable of overcoming the limiting effect of the limiting assembly to be switched between the containing position and the exposed position after being subjected to the set pressure effect. When the controller is not used, the controller can be adjusted to the storage position, when the controller needs to be used, the controller is adjusted to the exposed position, and user operation is facilitated. And an overlong wire harness does not need to be arranged, the transverse size of the seat frame is not increased, and the risk of mistaken touch or falling can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of seats, in particular to a seat frame and a seat having the same. Background Art

[0002] With the development of technology, the functions of seats are becoming more and more abundant. For example, the seats in the related art can massage different parts of the whole body with different intensities, and there are also various massage methods. Or, the backrest, seat cushion, etc. in the seat can be cooled or heated according to needs. The above various functions are inseparable from the cooperation of various electric components. Correspondingly, the start and stop of the electric components need to be controlled by a controller. The installation methods of the controllers in the related art are generally divided into a fixed-position type and a wired type. Among them, the fixed-position type means that the controller is placed at a fixed position on the seat and cannot be moved. This solution is not convenient for users to pick up the controller for operation. At the same time, for the convenience of user operation, the side of the controller with the operation interface needs to be facing up. Generally, a specific area needs to be set on the seat frame for installing the controller to display the operation interface, which will increase the lateral size of the seat frame, making it not only unsightly but also prone to misoperation. The wired type means that the movable range of the controller is extended by using wires. Although it is convenient for users to operate, the external wire harness affects the appearance, and the controller may also fall and be damaged. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a seat frame and a seat having the same, which can adjust the controller to the storage position when the controller is not in use and adjust the controller to the exposed position when the controller is needed for operation, facilitating user operation.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A seat frame, including a seat frame body, the seat frame further includes a limiting component arranged on the seat frame body and a controller connected to the limiting component. The controller has a storage position and an exposed position relative to the seat frame body. The limiting component is configured to limit the controller from switching between the storage position and the exposed position when the controller is in the storage position and the exposed position; the controller is configured to be able to overcome the limiting effect of the limiting component and switch between the storage position and the exposed position after being subjected to a set pressure.

[0006] Preferably, the controller is swingably arranged relative to the seat frame body.

[0007] Preferably, the limiting component includes: a mounting base fixedly arranged on the seat frame body; a locking wheel arranged on the mounting base, and the locking wheel is configured to be circumferentially positioned on the mounting base along a set axis and can slide axially relative to the mounting base along the set axis; a synchronous wheel fixedly arranged on the controller and coaxially arranged with the locking wheel; and an elastic member that presses on the locking wheel so that the locking wheel has a tendency to move towards the synchronous wheel; wherein, the controller is swingably connected to the mounting base around the set axis, a meshing structure is arranged between the locking wheel and the synchronous wheel, and the locking wheel presses on the controller circumferentially along the set axis when the controller is in the storage position and the exposed position, so as to limit the swing of the controller between the storage position and the exposed position.

[0008] Preferably, the meshing structure includes four limiting protrusions arranged on the locking wheel and two bumps arranged on the synchronous wheel. The four limiting protrusions are circumferentially spaced on the locking wheel, and the two bumps are circumferentially spaced on the synchronous wheel; the two bumps are meshed with two of the limiting protrusions when the controller is in the storage position, and the two bumps are meshed with the other two limiting protrusions when the controller is in the exposed position.

[0009] Preferably, the mounting base is formed with a connection hole, and the inner wall of the connection hole is formed with a limiting chute extending axially along the set axis. The outer ring of the locking wheel is formed with a slider adapted to the limiting chute, and the locking wheel is slidably arranged in the connection hole by the cooperation of the slider and the limiting chute.

[0010] Preferably, the limiting component further includes a locking member. The locking member includes a long locking section and a limiting flange formed on the locking section. The locking section sequentially passes through the locking wheel and the synchronous wheel and is locked and fixed to the controller. The locking wheel is slidably matched with the locking section; the elastic member is arranged between the limiting flange and the locking wheel, and both ends of the elastic member are respectively abutted against the limiting flange and the locking wheel.

[0011] Preferably, the locking member is a screw. The screw rod of the screw forms the locking section and the nut forms the limiting flange. The controller is provided with a threaded hole, and the central axis of the threaded hole coincides with the set axis. The screw is screwed into the threaded hole.

[0012] Preferably, the seat frame body includes a bottom wall and side walls that slope upward and outward from the four sides of the bottom wall. The seat frame body is provided with a receiving groove extending from the side walls to the bottom wall. The controller is provided with a pressure-receiving portion for the user to apply pressure. When the controller is in the storage position, it is received in the receiving groove and its pressure-receiving portion extends outside the receiving groove. When the controller is in the exposed position, it is located outside the receiving groove.

[0013] Preferably, the side wall and the bottom wall cooperate to form a concave cavity. The limiting component is located in the concave cavity and is arranged close to the receiving groove. The limiting component is formed with a first limiting portion, and the first limiting portion is used to limit the controller from swinging away from the exposed position when the controller is in the storage position; the side wall is formed with a second limiting portion, and the first limiting portion is used to limit the controller from swinging away from the storage position when the controller is in the exposed position.

[0014] In addition, to achieve the above object, the present utility model also adopts the following technical solutions:

[0015] A seat includes a chassis. The seat further includes a seat frame as described in any one of the above technical solutions, and the seat frame is arranged on the chassis.

[0016] Compared with the prior art, the beneficial effect of the present utility model is that by providing a limiting component, the limiting component is used to limit the switching of the controller between the storage position and the exposed position. When the user needs to use the controller, the user applies a force to the controller to switch the controller from the storage position to the exposed position; when the user does not need to use the controller, the user applies a force to the controller to switch the controller from the exposed position to the storage position. There is no need to set a too long wire harness, nor will it increase the lateral dimension of the seat frame, and it can also reduce the risk of accidental touch or dropping. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 FIG. 15 is a schematic structural diagram of a seat frame when the controller is in the storage position provided by an embodiment of the present application;

[0018] Figure 2 FIG. 19 is a schematic structural diagram of the seat frame when the controller is in the exposed position;

[0019] Figure 3 FIG. 23 is a schematic structural diagram of the seat frame from another perspective when the controller is in the storage position;

[0020] Figure 4 FIG. 27 is an exploded view of the seat frame;

[0021] Figure 5 FIG. Figure 4 is an enlarged schematic view of part A in FIG.

[0022] Figure 6 FIG. 37 is a cross-sectional view of the limiting component and the controller;

[0023] Figure 7 FIG. 41 is an assembly schematic diagram of the locking wheel and the synchronous wheel when the controller is in the storage position;

[0024] Figure 8 FIG. 45 is an assembly schematic diagram of the locking wheel and the synchronous wheel when the controller is in the exposed position;

[0025] Figure 9 Explosion diagram of the locking wheel and the synchronous wheel;

[0026] Figure 10 Explosion diagram of the locking wheel and the synchronous wheel from another perspective;

[0027] Figure 11 Schematic diagram of the mounting base and the controller when the controller is in the storage position.

[0028] Among them, 1. Seat frame body; 10. Bottom wall; 11. Side wall; 12. Connecting column; 13. Accommodating groove; 130. Second limiting part; 2. Controller; 20. Compressed part; 21. Operating part; 22. Threaded hole; 3. Mounting base; 30. Connecting block; 300. First limiting part; 31. Connecting sleeve; 310. Connecting hole; 311. Limiting sliding groove; 4. Locking wheel; 40. Limiting protrusion; 41. Slide block; 42. Limiting ring; 5. Synchronous wheel; 50. Protrusion; 51. Positioning column; 6. Elastic member; 7. Locking member; 70. Locking section; 71. Limiting flange; 8. Gasket. Detailed implementation manners

[0029] Next, in combination with the accompanying drawings and specific implementation manners, the present utility model will be further described. It should be noted that, on the premise of no conflict, the following-described embodiments or technical features can be arbitrarily combined to form new embodiments. Except for special instructions, the materials and equipment used in this embodiment can be purchased from the market. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be construed as a limitation to the present application.

[0030] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application. In the description of the present application, the meaning of "a plurality" is two or more, unless otherwise specifically defined.

[0031] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, or it can be connected through an intermediary medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0032] This embodiment provides a seat frame, such as Figure 1 and Figure 2 As shown in , the seat frame includes a seat frame body 1, a limit assembly and a controller 2. The limit assembly is arranged on the seat frame body 1, and the limit assembly is connected to the controller 2. The controller 2 has a storage position and an exposed position relative to the seat frame body 1, and the limit assembly is configured to limit the controller 2 from switching between the storage position and the exposed position when the controller 2 is in the storage position and the exposed position. The controller 2 is configured to overcome the limit action of the limit assembly and switch between the storage position and the exposed position after being acted upon by a set pressure. Therefore, when the controller 2 is in the storage position and the exposed position, it will not switch between the two positions if there is no external force.

[0033] By setting a limit component, the limit component is used to limit the controller 2 from switching between the storage position and the exposed position. When the user needs to use the controller 2, the user applies a force to the controller 2 to switch the controller 2 from the storage position to the exposed position; when the user does not need to use the controller 2, the user applies a force to the controller 2 to switch the controller 2 from the exposed position to the storage position. There is no need to set an excessively long wire harness, nor will the lateral size of the seat frame be increased, and the risk of accidental touch or falling can be reduced.

[0034] It is easy to understand that different seats have different functions, and accordingly, the controller 2 has different settings. But in general, the controller 2 must have an operating unit 21, which can be a mechanical control button, an electronic touch screen, or a control knob. Figure 2 As shown in , the exposed position refers to a position where the operating part 21 can be displayed and oriented for easy operation by the user. Specifically in this embodiment, when the controller 2 is in the exposed position, the controller 2 is in a horizontal state as a whole, and the operating part 21 on the controller 2 faces upward. The "upper" mentioned here means that when the seat frame is applied to a seat, the direction toward the horizontal ground is down, and the direction away from the horizontal ground is up.

[0035] like Figure 3As shown in the figure, the seat frame body 1 in this embodiment includes a bottom wall 10 and side walls 11 that extend obliquely upward and outward from the four sides of the bottom wall 10, whereby the seat frame body 1 can form a concave cavity, which can be used to place a seat cushion. The structure of the seat frame body 1 can also adopt the seat frame body 1 of other shapes in the related art, which will not be elaborated here. In this embodiment, the seat frame body 1 is provided with a receiving groove 13 that extends from the side wall 11 to the bottom wall 10. When the controller 2 is in the storage position, it is received in the receiving groove 13, and when the controller 2 is in the exposed position, it is located outside the receiving groove 13.

[0036] When applying the seat frame provided in this embodiment to a seat, since the receiving groove 13 in the seat frame extends from the side wall 11 of the seat frame body 1 to the bottom wall 10, and the side wall 11 is inclined upward and outward relative to the bottom wall 10, the controller 2 is in an inclined state relative to the horizontal ground. After the seat is assembled, a seat cushion is provided in the concave cavity of the seat frame body 1. Under the occlusion of the seat cushion, the user will not see the controller 2 when observing from top to bottom, so that the controller 2 has a good hiding effect. At the same time, the controller 2 is received in the receiving groove 13 and will not increase the lateral dimension of the seat frame body 1.

[0037] In addition, the controller 2 is provided with a pressure-receiving part 20 for the user to apply pressure. When the controller 2 is in the storage position, the pressure-receiving part 20 can extend outside the receiving groove 13. This facilitates applying pressure to the pressure-receiving part 20 to drive the controller 2 to switch positions.

[0038] The controller 2 in this embodiment is swingably arranged relative to the seat frame body 1, that is, the controller 2 in this embodiment switches between the storage position and the exposed position through a swinging motion. Further, as shown in Figure 4 、 Figure 5 and Figure 6 In this embodiment, the limiting component includes a mounting seat 3, a locking wheel 4, a synchronous wheel 5 and an elastic member 6. Among them, the mounting seat 3 is fixedly arranged on the seat frame body 1, the locking wheel 4 is arranged on the mounting seat 3, and the locking wheel 4 is configured to be circumferentially positioned on the mounting seat 3 along a set axis and can slide axially relative to the mounting seat 3 along the set axis. The synchronous wheel 5 is fixedly arranged on the controller 2 and is coaxially arranged with the locking wheel 4. The elastic member 6 presses on the locking wheel 4 so that the locking wheel 4 has a tendency to move towards the synchronous wheel 5. Both the locking wheel 4 and the synchronous wheel 5 have round holes, and the set axis is the central axis of the above-mentioned round holes, and the controller 2 is swingably connected to the mounting seat 3 around the set axis. That is, the above-mentioned components have the following connection relationships: The synchronous wheel 5 is fixed to the controller 2 and the central axis of the round hole of the synchronous wheel 5 is the set axis. Therefore, the synchronous wheel 5 can rotate relative to the mounting seat 3 around the set axis synchronously with the controller 2. The locking wheel 4 is circumferentially fixed relative to the mounting seat 3 along the set axis (the two cannot rotate relative to each other), but the locking wheel 4 can slide axially relative to the mounting seat 3 along the set axis.

[0039] Meanwhile, an engaging structure is provided between the locking wheel 4 and the synchronous wheel 5. The locking wheel 4 presses on the controller 2 circumferentially along the set axis when the controller 2 is in the storage position and the exposed position through the engaging structure, so as to limit the controller 2 from swinging between the storage position and the exposed position.

[0040] Specifically in this embodiment, in combination with Figure 7 , Figure 8 , Figure 9 and Figure 10 as shown in, the above-mentioned engaging structure includes four limiting protrusions 40 provided on the locking wheel 4 and two bumps 50 provided on the synchronous wheel 5. The four limiting protrusions 40 are distributed circumferentially along the locking wheel 4. Preferably, the four limiting protrusions 40 are evenly distributed circumferentially along the locking wheel 4. The two bumps 50 are distributed circumferentially along the synchronous wheel 5. Preferably, the two bumps 50 are distributed at 180° circumferentially along the synchronous wheel 5. The two bumps 50 are engaged with two of the limiting protrusions 40 when the controller 2 is in the storage position, and the two bumps 50 are engaged with the other two limiting protrusions 40 when the controller 2 is in the exposed position.

[0041] In this way, under the action of the elastic member 6, axially along the set axis, the locking wheel 4 presses on the synchronous wheel 5. At the same time, through the meshing action of the limiting protrusions 40 and the bumps 50, the synchronous wheel 5 and the controller 2 can be restricted from swinging relative to the mounting base 3 circumferentially along the set axis (at this time, the relative position relationship between the locking wheel 4 and the synchronous wheel 5 is as Figure 7 shown in). When the user applies pressure to the pressure-receiving portion 20 on the controller 2 from the outside, specifically, when manually pulling the pressure-receiving portion 20, a part of the force applied to the controller 2 circumferentially along the set axis can be converted into a force applied to the locking wheel 4 axially along the set axis through the engaging structure. Thus, the elastic force of the elastic member 6 is overcome, and the locking wheel 4 slides axially relative to the mounting base 3 along the set axis (during this process, the elastic member 6 is further compressed), and finally the synchronous wheel 5 rotates relative to the locking wheel 4 (the rotation direction is as Figure 7 indicated by the arrow in), until the bump 50 is engaged with the other two limiting protrusions 40 (at this time, the relative position relationship between the locking wheel 4 and the synchronous wheel 5 is as Figure 8 shown in), and at the same time, under the action of the restoring deformation of the elastic member 6, the locking wheel 4 slides back to its original position.

[0042] In the mounting base 3 of this embodiment, a connection hole 310 is formed. On the inner wall of the connection hole 310, a limiting chute 311 extending along the axial direction of the set axis is formed. On the outer ring of the locking wheel 4, a slider 41 adapted to the limiting chute 311 is formed. The locking wheel 4 is slidably disposed in the connection hole 310 through the cooperation of the slider 41 and the limiting chute 311. Specifically in this embodiment, the mounting base 3 includes a connection block 30 and a connection sleeve 31 disposed on the connection block 30, and the aforementioned connection hole 310 is formed on the connection sleeve 31. It is easy to understand that a groove structure can also be formed on the outer ring surface of the locking wheel 4. Correspondingly, a slider structure adapted to the above groove structure is formed on the inner wall of the connection hole 310, and the assembly of the locking wheel 4 and the mounting base 3 can also be achieved.

[0043] The limiting component in this embodiment further includes a locking member 7. The purpose of setting the locking member 7 is to assemble the aforementioned elastic member 6. The locking member 7 in this embodiment includes a strip-shaped locking section 70 and a limiting flange 71 formed on the locking section 70. The locking section 70 sequentially passes through the locking wheel 4 and the synchronous wheel 5 and is locked and fixed to the controller 2. The locking wheel 4 is slidably engaged with the locking section 70. The elastic member 6 is disposed between the limiting flange 71 and the locking wheel 4, and both ends of the elastic member 6 respectively abut against the limiting flange 71 and the locking wheel 4. Through the above settings, the locking member 7 can swing relative to the mounting base 3 following the synchronous wheel 5 and the controller 2. Specifically, as shown in Figure 5 and Figure 6 In this embodiment, the locking member 7 is a screw. The screw rod of the screw forms the locking section 70 and the nut forms the limiting flange 71. The controller 2 is provided with a threaded hole 22, and the central axis of the threaded hole 22 coincides with the set axis. The screw is screwed into the threaded hole 22.

[0044] In other alternative embodiments, the locking member 7 can also be a pin shaft. The aforementioned limiting flange 71 can be formed by extending radially along the end of the pin shaft, and a part of the pin shaft can be used as the locking section 70. The threaded hole 22 provided on the controller 2 can be changed to a jack adapted to the pin shaft. During assembly, the pin shaft can be inserted through the locking wheel 4 and the synchronous wheel 5 and then tightly inserted into the aforementioned jack to realize the fixed installation of the pin shaft and the controller 2. At the same time, the elastic member 6 is disposed between the limiting flange 71 and the locking wheel 4.

[0045] As described above, the limiting component can limit the switching of the controller 2 between the storage position and the exposed position when the controller 2 is in the storage position and the exposed position. However, when the controller 2 is in the storage position, without other limiting structures, the controller 2 can swing away from the exposed position; similarly, when the controller 2 is in the exposed position, without other limiting structures, the controller 2 can swing away from the storage position. Although the above situations do not affect the use of the controller 2 and can achieve the purpose of this application, in order to make the controller 2 more stable in the storage position and the exposed position, the following design is also carried out in this embodiment:

[0046] Combined with Figure 3 and Figure 11 As shown in, in this embodiment, the side wall 11 and the bottom wall 10 cooperate to form a concave cavity, the limiting component is located in the concave cavity and is arranged close to the receiving groove 13, and the limiting component is formed with a first limiting portion 300, and the first limiting portion 300 is used to limit the controller 2 from swinging away from the exposed position when the controller 2 is in the storage position. The side wall 11 is formed with a second limiting portion 130, and the first limiting portion 300 is used to limit the controller 2 from swinging away from the storage position when the controller 2 is in the exposed position.

[0047] Specifically, in this embodiment, the mounting base 3 is provided with two connecting sleeves 31 on a connecting block 30, and an avoidance groove is formed at a position between the two connecting sleeves 31 on the connecting block 30. The housing portion of the controller 2 extends into the aforementioned avoidance groove, and the inner wall surface of the avoidance groove forms the first limiting portion 300. The top of the receiving groove 13 is located on the side wall 11, and the top inner wall of the receiving groove 13 forms the second limiting portion 130. Combined with Figure 1 , Figure 2 , Figure 3 and Figure 11 As shown in, when the controller 2 is in the storage position, the controller 2 cannot swing towards the exposed position under the meshing action of the locking wheel 4 and the synchronous wheel 5. At the same time, under the action of the first limiting portion 300, the controller 2 cannot continue to swing away from the exposed position. When the controller 2 is in the exposed position, the controller 2 cannot swing towards the storage position under the meshing action of the locking wheel 4 and the synchronous wheel 5. At the same time, under the action of the first limiting portion 300, the controller 2 cannot continue to swing away from the storage position.

[0048] Combined with Figure 4 , Figure 5 , Figure 6 , Figure 9 and Figure 10As shown in , in order to facilitate assembly, in this embodiment, a connecting column 12 is formed on the inner wall of the seat frame body 1, and a socket matching the connecting column 12 is formed on the mounting seat 3. The socket on the mounting seat 3 is aligned with the connecting column 12 and tightly plugged to achieve the fixed installation of the mounting seat 3 and the seat frame body 1. A positioning column 51 is formed on the synchronous wheel 5, and a socket matching the positioning column 51 is provided on the controller 2. The positioning column 51 on the synchronous wheel 5 is aligned with the socket on the controller 2 and tightly plugged to achieve the fixed installation of the synchronous wheel 5 and the controller 2. The locking wheel 4 is placed in the connecting hole 310 of the connecting sleeve 31, and the slider 41 on the locking wheel 4 is placed in the limiting slide groove 311 in the connecting hole 310. A limiting ring 42 is formed on the side surface of the locking wheel 4 away from the limiting protrusion 40. The elastic member 6 in this embodiment is a compression spring, and one end of the compression spring is inserted into the limiting ring 42 so that the compression spring can stably abut against the locking wheel 4. Finally, the locking section 70 of the locking member 7 passes through the compression spring, the locking wheel 4 and the synchronous wheel 5 and is locked in the threaded hole 22 of the controller 2, thereby completing the assembly of the controller 2, the limiting assembly and the seat frame body 1.

[0049] Preferably, a gasket 8 may be provided between the limiting flange 71 and the compression spring, and during assembly, the locking section 70 may be passed through the gasket 8. In addition, in some optional embodiments, the elastic member 6 may also be an elastic structure such as a metal spring.

[0050] The seat frame provided in this embodiment can be applied to a seat, wherein the seat comprises a chassis, and the seat frame is arranged on the chassis. Other structures of the seat are the same as those in the prior art, and will not be described in detail herein.

[0051] When the user uses the above-mentioned chair, when the user needs to use the controller 2, the user manually pulls the pressure-receiving part 20 of the controller 2 to overcome the pressure of the elastic member 6 on the locking wheel 4, so that the synchronous wheel 5 follows the controller 2 and rotates relative to the locking wheel 4 until the controller 2 swings to the exposed position. At this time, under the limiting action of the second limiting part 130, the controller 2 can no longer continue to swing in the direction away from the storage position, and at the same time, the protrusion 50 on the synchronous wheel 5 re-engages with the limiting protrusion 40 on the locking wheel 4, and the controller 2 cannot swing to the storage position without the action of external force. After completing the control operation, the user presses the pressure-receiving part 20 on the controller 2 to make the controller 2 swing to the storage position, until it can no longer swing in the direction away from the exposed position under the limiting action of the first limiting part 300, and at the same time, the protrusion 50 on the synchronous wheel 5 re-engages with the limiting protrusion 40 on the locking wheel 4, and the controller 2 will not swing to the exposed position without the action of external force.

[0052] Finally, it should be noted that the above embodiments are only optional embodiments of the present utility model, and the protection scope of the present utility model cannot be limited thereby. Any non-substantive changes and substitutions made by those skilled in the art based on the present utility model fall within the protection scope required by the present utility model.

Claims

1. Seat frame, including a seat frame body, characterized in that, The seat frame further includes a limiting component disposed on the seat frame body and a controller connected to the limiting component. The controller has a receiving position and an exposed position relative to the seat frame body. The limiting component is configured to limit the switching of the controller between the receiving position and the exposed position when the controller is in the receiving position and the exposed position; The controller is configured to overcome the limiting effect of the limiting component and switch between the receiving position and the exposed position when subjected to a set pressure.

2. The seat frame according to claim 1, characterized in that, The controller is swingably disposed relative to the seat frame body.

3. The seat frame according to claim 2, characterized in that, The limiting component includes: A mounting seat fixedly disposed on the seat frame body; A locking wheel disposed on the mounting seat, and the locking wheel is configured to be circumferentially positioned on the mounting seat along a set axis and can slide axially relative to the mounting seat along the set axis; A synchronous wheel fixedly disposed on the controller and coaxially arranged with the locking wheel; and, An elastic member that presses on the locking wheel so that the locking wheel has a tendency to move towards the synchronous wheel; Wherein, the controller is swingably connected to the mounting seat around the set axis, a meshing structure is provided between the locking wheel and the synchronous wheel, and the locking wheel presses on the controller circumferentially along the set axis when the controller is in the receiving position and the exposed position to limit the swinging of the controller between the receiving position and the exposed position.

4. The seat frame according to claim 3, characterized in that, The meshing structure includes four limiting protrusions provided on the locking wheel and two bumps provided on the synchronous wheel. The four limiting protrusions are circumferentially spaced on the locking wheel, and the two bumps are circumferentially spaced on the synchronous wheel; The two bumps are meshed with two of the limiting protrusions when the controller is in the receiving position, and the two bumps are meshed with the other two limiting protrusions when the controller is in the exposed position.

5. The seat frame according to claim 3, characterized in that The mounting seat forms a connection hole, and the inner wall of the connection hole forms a limiting chute extending axially along the set axis. The outer ring of the locking wheel forms a slider adapted to the limiting chute, and the locking wheel is slidably disposed in the connection hole through the cooperation of the slider and the limiting chute.

6. The seat frame according to claim 3, characterized in that, The limiting component further includes a locking member. The locking member includes a long locking section and a limiting flange formed on the locking section. The locking section sequentially passes through the locking wheel and the synchronous wheel and is locked and fixed to the controller. The locking wheel is slidably engaged with the locking section; The elastic member is disposed between the limiting flange and the locking wheel, and both ends of the elastic member are respectively abutted against the limiting flange and the locking wheel.

7. The seat frame according to claim 6, characterized in that, The locking member is a screw. The screw rod of the screw forms the locking section and the nut forms the limiting flange. The controller is provided with a threaded hole, and the central axis of the threaded hole coincides with the set axis. The screw is threadedly tightened into the threaded hole.

8. The seat frame according to any one of claims 1 to 7, characterized in that, The seat frame body includes a bottom wall and side walls that slope upward and outward from the four sides of the bottom wall. The seat frame body is provided with a receiving groove extending from the side walls to the bottom wall. The controller is provided with a pressure-receiving part for the user to apply pressure. When the controller is in the storage position, it is received in the receiving groove and its pressure-receiving part extends outside the receiving groove. When the controller is in the exposed position, it is located outside the receiving groove.

9. The seat frame according to claim 8, wherein, The side walls and the bottom wall cooperate to form a concave cavity. The limiting component is located in the concave cavity and is disposed close to the receiving groove. The limiting component forms a first limiting part, which is used to limit the controller from swinging in a direction away from the exposed position when the controller is in the storage position. The side wall forms a second limiting part, which is used to limit the controller from swinging in a direction away from the storage position when the controller is in the exposed position.

10. A seat, comprising a chassis, characterized in that, The seat further includes the seat frame as described in any one of claims 1 to 9, and the seat frame is disposed on the chassis.

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