Seat and seat furniture

Abstract

The application provides a seat frame and a seat. According to an example of the application, the seat frame comprises: a fixed frame assembly comprising a fixed frame and a magnetic attraction piece fixed to the fixed frame; a sliding frame assembly comprising a sliding frame and a magnetic attraction matching piece, the sliding frame being slidably connected to the fixed frame along a first direction, and the magnetic attraction matching piece being fixed to the sliding frame; wherein the sliding frame has a retracted locking state and a sliding adjustable state, in the retracted locking state, the magnetic attraction piece and the magnetic attraction matching piece are in adsorptive connection, in the sliding adjustable state, the magnetic attraction piece and the magnetic attraction matching piece are in contact and adsorptive connection, and the sliding frame is freely slidable relative to the fixed frame along the first direction. The application can reduce the risk of accidental sliding of the sliding frame.

Description

Technical Field

[0001] This application relates to the field of furniture technology, and more particularly to a seat frame and seating. Background Technology

[0002] In the home seating industry, sliding frames are a common type of seat frame, primarily used to allow for horizontal and forward / backward adjustment of seat components such as cushions to optimize user comfort or spatial layout. Sliding frames typically consist of a fixed frame and a sliding bracket that connects to the seat cushion. The sliding bracket can slide relative to the fixed frame, thereby causing the seat cushion to slide.

[0003] When the sliding frame is fully retracted into the fixed frame, frequent getting up, sitting down, or moving around on the seat will exert a force on the cushion. Under the action of this force, the sliding frame is prone to sliding relative to the fixed frame, causing the cushion on the sliding frame to accidentally slide off. Summary of the Invention

[0004] This application provides a seat frame and seating that can reduce the risk of the sliding frame accidentally sliding out.

[0005] In a first aspect, this application provides a seat frame, comprising: A mounting bracket assembly includes a mounting bracket and a magnetic element fixed to the mounting bracket; A sliding frame assembly includes a sliding frame and a magnetic coupling component, wherein the sliding frame is slidably connected to the fixed frame along a first direction, and the magnetic coupling component is fixed to the sliding frame; The sliding frame has a retracted and locked state and a sliding adjustable state. In the retracted and locked state, the magnetic suction member is attracted to the magnetic suction engagement member. In the sliding adjustable state, the magnetic suction member is attracted to the magnetic suction engagement member. The sliding frame can slide freely relative to the fixed frame in a first direction.

[0006] Optionally, the sliding frame assembly further includes a rear limiting rod extending along a second direction, the rear limiting rod being fixed inside the sliding frame, the rear limiting rod being slidably connected to the fixed frame along a first direction, and the magnetic attraction component being fixed to the rear limiting rod; The second direction intersects with or is perpendicular to the first direction.

[0007] Optionally, the rear limiting rod is provided with a slot, and the magnetic coupling component is placed in the slot.

[0008] Optionally, the side wall of the rear limiting rod is provided with a threaded hole, which is directly opposite the slot. The seat frame also includes a threaded connector, which passes through the threaded hole and abuts against the side end of the magnetic coupling.

[0009] Optionally, the magnetic attractor includes a first part and a second part connected together, the first part being fixed to the fixing frame, the first part extending in a direction close to the magnetic attractor, and the second part extending in a vertical direction; And / or, the magnetic attracting element is a magnetically conductive material plate, and the magnetic attracting mating element is a permanent magnet.

[0010] Optionally, the fixing frame assembly further includes a shaft extending along a first direction, the shaft being fixed within the fixing frame, and a rear limiting slider being provided at the bottom of the rear limiting rod, the rear limiting slider being slidably connected to the shaft.

[0011] Optionally, there are multiple shafts and multiple rear limit sliders, with each rear limit slider corresponding to one of the multiple shafts, and each rear limit slider being slidably connected to the corresponding shaft.

[0012] Optionally, the sliding frame assembly further includes a front limiting rod and a front limiting slider. The front limiting rod is located on the side of the rear limiting rod away from the magnetic attractor. The front limiting rod extends along a second direction and is fixed inside the fixing frame. The front limiting slider is fixed to the bottom of the front limiting rod and is slidably connected to the shaft.

[0013] Optionally, both ends of the shaft are fitted with shock-absorbing pads; In the retracted and locked state, the rear limit slider abuts against the shock-absorbing pad near the magnetic attractor. In the sliding adjustable state, when the sliding frame slides to its maximum position, the front limit slider abuts against the shock-absorbing pad away from the magnetic attractor.

[0014] Optionally, the top of the fixed frame is provided with a guide rail extending along the first direction, and the bottom of the sliding frame is provided with a sliding member, which is slidably connected to the guide rail; wherein, the fixed frame assembly further includes a support wheel disposed on the top of the fixed frame, the support wheel being located at the end of the guide rail away from the magnetic member, and the support wheel being used to support the sliding frame; And / or, the number of the magnetic attracting element and the magnetic attraction mating element is multiple, and the multiple magnetic attracting elements and the multiple magnetic attraction mating elements correspond one-to-one.

[0015] Secondly, this application provides a seating fixture, comprising: A seating frame as described in any of the above; The base is fixedly connected to the fixing frame; and The seat cushion is fixedly connected to the sliding frame.

[0016] The seating and seat frame provided in this application have at least the following beneficial effects: In the adjustable sliding state, the magnetic attraction between the magnetic components and the magnetic mating parts is released, and the magnetic force between them is lost, allowing the sliding frame to slide freely relative to the fixed frame. Users can adjust the position of the sliding frame as needed. In the retracted and locked state, the sliding frame is fully retracted into the fixed frame, and the magnetic components and magnetic mating parts are magnetically connected, securing the sliding frame to the fixed frame with magnetic force, forming a magnetic lock. Thus, when the sliding frame slides out (i.e., when switching from the retracted and locked state to the adjustable sliding state), it needs to overcome the magnetic force between the magnetic components and the magnetic mating parts. Therefore, unless manually adjusted, the sliding frame is unlikely to slide out accidentally, thus reducing the risk of accidental sliding out. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this specification and, together with the description, serve to explain the principles of this specification.

[0018] Figure 1 This is a schematic diagram of the seat frame in the retracted and locked state, as shown in an exemplary embodiment of this application; Figure 2 yes Figure 1 Enlarged schematic diagram of part A; Figure 3 This is an exploded view of the magnetic attraction component and the front limiting rod shown in an exemplary embodiment of this application; Figure 4 yes Figure 3 Enlarged schematic diagram of part B.

[0019] Explanation of reference numerals in the attached figures: 10. Fixing frame; 11. Guide rail; 12. Front fixing beam; 13. Rear fixing beam; 14. Left fixing beam; 15. Right fixing beam; 16. Support wheel; 20. Magnetic attachment; 21. First part; 22. Second part; 30. Sliding frame; 31. Left sliding beam; 32. Right sliding beam; 33. Sliding component; 40. Magnetic attachment component; 51. Rear limit rod; 511. Slot; 512. Threaded connector; 5121. Threaded end; 513. Threaded hole; 52. Rear limit slider; 53. Front limit rod; 54. Front limit slider; 61. Shaft; 62. Shock-absorbing pad; Detailed Implementation

[0020] The technical solutions in the embodiments (or "implementations") of this application will be clearly and completely described herein with reference to the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0021] If the embodiments of this application contain terms relating to directional indications or positional relationships (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movement of the components in a specific posture (as shown in the attached figures); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, the terms "first" and "second" used in the embodiments of this application are only for descriptive convenience and should not be construed as indicating or implying relative importance.

[0022] This application provides a seat frame and seating arrangement. The seat frame and seating arrangement will be described in detail below with reference to the accompanying drawings. Unless otherwise specified, the features in the following embodiments and implementation methods can be combined with each other.

[0023] Please refer to Figures 1 to 4 This application provides a seat frame, which includes a fixed frame assembly and a sliding frame assembly.

[0024] The fixed frame assembly includes a fixed frame 10 and a magnetic suction member 20 fixed to the fixed frame 10. The sliding frame assembly includes a sliding frame 30 and a magnetic suction engagement member 40, with the magnetic suction engagement member 40 fixed to the sliding frame 30. It should be noted that the fixing here includes, but is not limited to, direct fixing and indirect fixing. The sliding frame 30 has a retracted locked state and a sliding adjustable state. In the retracted locked state, the magnetic suction member 20 and the magnetic suction engagement member 40 are magnetically connected. In the sliding adjustable state, the magnetic suction member 20 and the magnetic suction engagement member 40 are released from magnetic connection, and the sliding frame 30 can slide freely relative to the fixed frame 10 along a first direction. Here, "the magnetic suction member 20 and the magnetic suction engagement member 40 are released from magnetic connection" means: the distance between the magnetic suction member 20 and the magnetic suction engagement member 40 exceeds the effective magnetic attraction distance; or the magnetic attraction between the magnetic suction member 20 and the magnetic suction engagement member 40 fails; or the magnetic attraction weakens to a state that allows the sliding frame 30 to move freely.

[0025] As described above, in the adjustable sliding state, the sliding frame 30 can slide freely relative to the fixed frame 10 because the magnetic attraction between the magnetic attractor 20 and the magnetic mating member 40 is lost, allowing the user to adjust the position of the sliding frame 30 as needed. In the retracted and locked state, the sliding frame 30 is fully retracted into the fixed frame 10, and the magnetic attractor 20 and the magnetic mating member 40 are magnetically connected, fixing the sliding frame 30 to the fixed frame 10 by magnetic attraction, forming a magnetic lock. Thus, when the sliding frame 30 slides out (i.e., when switching from the retracted and locked state to the adjustable sliding state), it needs to overcome the magnetic attraction between the magnetic attractor 20 and the magnetic mating member 40. Therefore, unless manually adjusted, the sliding frame 30 is less likely to slide out accidentally, thus reducing the risk of accidental sliding out.

[0026] There are multiple magnetic attraction methods between the magnetic attractor 20 and the magnetic mating part 40.

[0027] For example, both the magnetic attractor 20 and the magnetic mating component 40 are permanent magnets, and the magnetic poles of the magnetic attractor 20 and the magnetic mating component 40 are opposite (e.g., the magnetic attractor 20 is N-pole, and the mating component is S-pole), achieving connection through the attraction of opposite poles. When the sliding frame 30 is in the retracted and locked state, the two permanent magnets are attracted and connected, locking the sliding frame 30 to the fixed frame 10. When it is necessary to switch to the sliding adjustable position, a certain external force is applied to disengage the two permanent magnets, thereby releasing the sliding freedom of the sliding frame 30, allowing the sliding frame 30 to slide freely relative to the fixed frame 10.

[0028] Alternatively, for example, one of the magnetic attractor 20 and the magnetic engaging component 40 may be a permanent magnet, and the other may be a magnetically conductive material. The permanent magnet is made of a permanent magnetic material and can maintain its magnetism for a long time, while the magnetically conductive material itself is non-magnetic but can be attracted by the permanent magnet. Similarly, when the sliding frame 30 is in the retracted and locked state, the permanent magnet and the magnetically conductive material are attracted and connected, locking the sliding frame 30 to the fixed frame 10. When it is necessary to switch to the sliding adjustable position, a certain external force is applied to disengage the permanent magnet and the magnetically conductive material, thereby releasing the sliding freedom of the sliding frame 30 and allowing the sliding frame 30 to slide freely relative to the fixed frame 10.

[0029] Alternatively, for example, one of the magnetic attractor 20 and the magnetic engaging component 40 may be an electromagnet, and the other may be a permanent magnet or a magnetically conductive material. The electromagnet consists of an iron core and windings; it generates magnetism when energized and loses magnetism when de-energized. When the sliding frame 30 is in the retracted locked state, the electromagnet can be energized to generate magnetism, thereby attracting and connecting with the permanent magnet or magnetically conductive material of the other component. When switching to the adjustable sliding state is required, the current to the electromagnet can be disconnected, the magnetic attraction between the electromagnet and the permanent magnet or magnetically conductive material of the other component disappears, thereby releasing the sliding freedom of the sliding frame 30, allowing the sliding frame 30 to slide freely relative to the fixed frame 10.

[0030] In some embodiments, the magnetic attractor 20 is a plate of magnetically conductive material, such as a plate made of iron, cobalt, nickel and their alloys (such as low-carbon steel, ferritic stainless steel, etc.), and the magnetic attractor 40 is a permanent magnet, such as neodymium iron boron, ferrite (low cost, moderate magnetism), AlNiCo, etc. However, it is not limited to these.

[0031] The installation method of the magnetic material plate is more flexible. It can be directly combined with the fixed frame 10 by welding, bolt fixing or other methods, and the connection strength is high. The permanent magnet, as a matching part, can be fixed on the sliding frame 30 by embedding, gluing or other methods. If it needs to be replaced later (such as when the magnetism weakens), only a small permanent magnet needs to be replaced. The maintenance cost is low and the operation is simple.

[0032] In some embodiments, the sliding frame assembly further includes a rear limiting rod 51 extending along a second direction Y. The rear limiting rod 51 is fixed within the sliding frame 30 and slidably connected to the fixing frame 10 along a first direction X. A magnetic coupling member 40 is fixed to the rear limiting rod 51, and the second direction Y is perpendicular to or intersects with the first direction X.

[0033] First, the rear limiting rod 51 is fixed within the sliding frame 30 along the second direction Y, effectively adding a lateral support structure to the sliding frame 30 and enhancing its overall rigidity. Second, the magnetic coupling component 40 is integrated into the rear limiting rod 51, rather than the sliding frame 30, simplifying its structure. Furthermore, since the sliding frame 30 itself needs to slide against the fixed frame 10, the magnetic coupling component 40 is integrated into the rear limiting rod 51 inside the sliding frame 30, rather than at the edge of the sliding frame 30. This allows for the use of the gap between the sliding frame 30 and the fixed frame 10 to arrange the structure, improving the overall structural compactness.

[0034] refer to Figure 3 and Figure 4 and combined Figure 1 The rear limiting rod 51 is provided with a slot 511, and the magnetic coupling part 40 is placed in the slot 511. The slot 511 provides a clear installation reference for the magnetic coupling part 40, making the installation process of the magnetic coupling part 40 more convenient. Workers do not need to repeatedly calibrate the position; they only need to insert the magnetic coupling part 40 into the slot 511.

[0035] There are several ways to fix the magnetic coupling part 40 in the card slot.

[0036] For example, the shape of the slot 511 can match the shape of the magnetic coupling 40. When the magnetic coupling 40 is placed in the slot 511, the side wall or bottom surface of the slot 511 will form a circumferential constraint on it, and the swaying amplitude of the magnetic coupling 40 can be limited without other fixing methods.

[0037] Alternatively, for example, the magnetic fastener 40 can be attached to the card slot 511 by applying glue or adhesive layer, thereby fixing the magnetic fastener 40.

[0038] In one specific embodiment, the side wall of the rear limiting rod 51 is provided with a threaded hole 513, which is directly opposite to the slot 511. The seat also includes a threaded connector 512, which passes through the threaded hole 513, and the threaded end 5121 of the threaded connector 512 abuts against the side end of the magnetic attraction component 40.

[0039] In this way, the threaded connector 512 (such as a screw, bolt, or threaded rod) can be precisely tightened against the side end of the magnetic coupling 40 by adjusting the screw-in depth. This eliminates the gap between the magnetic coupling 40 and the slot 511, preventing loosening, and also allows for fine-tuning the position of the magnetic coupling 40 within the slot 511, ensuring that the magnetic coupling 40 corresponds to the magnetic component 20, thus enabling better magnetic attraction and connection between them. Furthermore, when the magnetic coupling 40 needs to be replaced, simply loosen the threaded connector 512 to remove the old magnetic coupling 40, replace it with a new one, and then retighten the threaded connector 512 to secure it. The operation is simple and convenient, requiring no damage to the structure of the slot 511 or the rear limit rod 51, reducing maintenance difficulty and cost.

[0040] In some embodiments, the magnetic member 20 includes a first part 21 and a second part 22 connected together. The first part 21 is connected to the fixing frame 10 and extends in a direction close to the magnetic coupling member 40. The second part 22 extends in the vertical direction Z.

[0041] Thus, the first part 21 extends in the direction close to the magnetic coupling member 40, which can reduce the distance between the magnetic member 20 and the magnetic coupling member 40, and the second part 22 extends in the vertical direction Z, which can increase the connection area between the magnetic member 20 and the magnetic coupling member 40 and improve the reliability of the magnetic coupling.

[0042] In some embodiments, there are multiple magnetic suction elements 20 and multiple magnetic suction mating elements 40, with each magnetic suction element 20 and each magnetic suction mating element 40 corresponding to the other to improve the magnetic attraction effect and further reduce the risk of the sliding frame 30 accidentally sliding out.

[0043] like Figure 1 and Figure 2 In the embodiment shown, there are two magnetic attracting elements 20 and two magnetic attracting mating elements 40. The two magnetic attracting elements 20 and the two magnetic attracting mating elements 40 correspond one-to-one, and the two magnetic attracting elements 20 and the two magnetic attracting mating elements 40 are distributed at intervals along the second direction Y.

[0044] In some embodiments, the fixing frame assembly further includes a shaft 61 extending along a first direction X, the shaft 61 being fixed within the fixing frame 10, and a rear limiting slider 52 being provided at the bottom of the rear limiting rod 51, the rear limiting slider 52 being slidably connected to the shaft 61.

[0045] Through its sliding engagement with the rear limit slider 52, shaft 61 can guide the rear limit rod 51 to slide more accurately along the first direction X, and also support the rear limit rod 51, making the rear limit rod 51 more stable during the sliding process.

[0046] It should be noted that the aforementioned axis 61 is an optical axis, to make the sliding of the rear limit slider 52 on axis 61 smoother. However, it is not limited to this.

[0047] Furthermore, there are multiple shafts 61 and multiple rear limit sliders 52. Each rear limit slider 52 corresponds to one of the multiple shafts 61, and each rear limit slider 52 is slidably connected to the corresponding shaft 61.

[0048] Multiple axes 61 can provide support for the rear limit rod 51 at multiple points through the corresponding rear limit slider 52. At the same time, multiple axes 61 can play a guiding role, enabling the rear limit rod 51 to move more accurately along the first direction X.

[0049] In some embodiments, the sliding frame assembly further includes a front limiting rod 53 and a front limiting slider 54, with the front limiting rod 53 located on the side of the rear limiting rod 51 opposite to the magnetic attractor. In other words, as... Figure 1 As shown, the front limit rod 53 is located in front of the rear limit rod 51. The front limit rod 53 also extends along the second direction Y. The front limit rod 53 is fixed inside the sliding frame 30, and the front limit slider 54 is fixed to the bottom of the front limit rod 53. The front limit slider 54 is slidably connected to the shaft 61.

[0050] The front limit rod 53 and the rear limit rod 51 can jointly support the sliding frame 30, increasing the load-bearing capacity of the sliding frame 30. At the same time, since both the front limit rod 53 and the rear limit rod 51 are slidably connected to the shaft 61 along the first direction X, they can guide the sliding direction of the sliding frame 30, enabling the sliding frame 30 to slide more accurately along the first direction X.

[0051] like Figure 1 In the illustrated embodiment, the fixing frame 10 includes a front fixing beam 12 and a rear fixing beam 13 spaced apart in the front-to-back direction, and two shafts 61 inserted between the front fixing beam 12 and the rear fixing beam 13. The sliding frame 30 includes a left sliding beam 31 and a right sliding beam 32 spaced apart in the left-to-right direction. The rear limiting rod 51 and the front limiting rod 53 are both fixed between the left sliding beam 31 and the right sliding beam 32 by bolts (including but not limited to direct bolt connection and indirect connection through a connecting plate with threaded connection function). The rear limiting rod 51 is slidably connected to the two shafts 61 through a rear limiting slider 52, and the front limiting rod 53 is slidably connected to the two shafts 61 through a front limiting slider 54.

[0052] In some embodiments, both ends of the shaft 61 are fitted with shock-absorbing pads 62. When the sliding frame 30 is in the retracted and locked state, the rear limit slider 52 abuts against the shock-absorbing pad 62 near the magnetic attractor 20. When the sliding frame 30 is in the adjustable state, when the sliding frame 30 slides to the maximum position, the front limit slider 54 abuts against the shock-absorbing pad 62 away from the magnetic attractor 20.

[0053] The two damping pads 62 are positioned at the two extreme positions of the sliding frame 30 (the maximum sliding position in the retracted locked state and the adjustable sliding state). The damping pad 62 closer to the magnetic attractor 20 can abut against the rear limit slider 52 in the retracted locked state, thereby limiting the sliding frame 30 to the retracted locked position and preventing the sliding frame 30 from moving continuously. The damping pad 62 further away from the magnetic attractor can abut against the front limit slider 54 when the sliding frame 30 slides to the maximum position, thereby limiting the sliding frame 30 to the maximum position and preventing the sliding frame 30 from sliding without restriction. In addition, the damping pads 62 can also play a buffering and shock-absorbing role when in contact with the rear limit slider 52 and the front limit slider 54.

[0054] In some embodiments, the top of the fixed frame 10 is provided with a guide rail 11 extending along the first direction X, and the bottom of the sliding frame 30 is provided with a slider 33, which is slidably connected to the guide rail 11, so that the sliding frame 30 can slide relative to the fixed frame 10 along the first direction X.

[0055] The mounting bracket assembly also includes a support wheel 16 disposed on the top of the mounting bracket 10. The support wheel 16 is located at the end of the guide rail 11 away from the magnetic suction member 20, and the support wheel 16 is used to support the sliding bracket 30. Specifically, the support wheel 16 can be rotatably disposed on the top of the mounting bracket 10 via a support shaft, but is not limited thereto.

[0056] It is easy to understand that when the sliding frame 30 is pulled out of the fixed frame 10 to its maximum sliding position, the front end of the sliding frame 30 (the side away from the magnetic component) will form a "cantilever structure". Relying solely on the cooperation between the guide rail 11 and the sliding component 33, the front end may sag due to the excessive length of the cantilever (especially when bearing weight). The support wheel 16 is located at the end of the guide rail 11, which provides upward support to the bottom of the cantilever end of the sliding frame 30, offsetting part of the torque generated by gravity.

[0057] like Figure 1 In the embodiment shown, the fixing frame 10 further includes a left fixing beam 14 and a right fixing beam 15 spaced apart in the left-right direction, and the sliding frame 30 further includes a left sliding beam 31 and a right sliding beam 32 spaced apart in the left-right direction.

[0058] The left fixed beam 14 and the right fixed beam 15 are both equipped with guide rails 11 and support wheels 16 at their tops. The support wheels 16 are located at the end of the guide rail (i.e., the front end, which is away from the magnetic attractor). The left sliding beam 31 and the right sliding beam 32 are both equipped with sliding members 33 at their bottoms. The sliding member 33 of the left sliding beam 31 is slidably connected to the guide rail 11 of the left fixed beam 14, and the sliding member 33 of the right sliding beam 32 is slidably connected to the guide rail 11 at the top of the right fixed beam 15.

[0059] This application also provides a seating arrangement, comprising a seat frame, a seat cushion, and a base as described in any of the above embodiments or implementations. The fixed frame 10 is fixedly connected to the base, and the sliding frame 30 is fixedly connected to the seat cushion. This seating arrangement can be, but is not limited to, a sofa or chair. Based on the same inventive concept, the seating arrangement provided in this application can prevent the seat cushion from accidentally sliding off, which will not be elaborated further.

[0060] The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application shall be included within the scope of protection of this application.

Claims

1. A seating frame, characterized in that, include: A mounting bracket assembly includes a mounting bracket and a magnetic element fixed to the mounting bracket; A sliding frame assembly includes a sliding frame and a magnetic coupling component, wherein the sliding frame is slidably connected to the fixed frame along a first direction, and the magnetic coupling component is fixed to the sliding frame; The sliding frame has a retracted and locked state and a sliding and adjustable state. In the retracted and locked state, the magnetic suction member is attracted to the magnetic attraction member. In the sliding and adjustable state, the magnetic suction member is released from the magnetic attraction member, and the sliding frame can slide freely relative to the fixed frame along the first direction.

2. The seat frame according to claim 1, characterized in that, The sliding frame assembly further includes a rear limiting rod extending along a second direction, the rear limiting rod being fixed inside the sliding frame, the rear limiting rod being slidably connected to the fixed frame along a first direction, and the magnetic attraction component being fixed to the rear limiting rod; The second direction intersects with or is perpendicular to the first direction.

3. The seat frame according to claim 2, characterized in that, The rear limiting rod is provided with a slot, and the magnetic attraction component is placed in the slot.

4. The seat frame according to claim 3, characterized in that, The side wall of the rear limiting rod is provided with a threaded hole, which is directly opposite the slot. The seat also includes a threaded connector, which passes through the threaded hole and the threaded end of the threaded connector abuts against the side end of the magnetic coupling.

5. The seat frame according to any one of claims 2 to 4, characterized in that, The magnetic attractor includes a first part and a second part connected together. The first part is fixed to the fixing frame and extends in a direction close to the magnetic attractor. The second part extends in a vertical direction. And / or, the magnetic attracting element is a magnetically conductive material plate, and the magnetic attracting mating element is a permanent magnet.

6. The seat frame according to claim 2, characterized in that, The fixing frame assembly also includes a shaft extending along a first direction, the shaft being fixed within the fixing frame, and a rear limiting slider being provided at the bottom of the rear limiting rod, the rear limiting slider being slidably connected to the shaft.

7. The seat frame according to claim 6, characterized in that, There are multiple shafts and multiple rear limit sliders. Each rear limit slider corresponds to one of the multiple shafts, and each rear limit slider is slidably connected to the corresponding shaft.

8. The seat frame according to claim 6, characterized in that, The sliding frame assembly further includes a front limiting rod and a front limiting slider. The front limiting rod is located on the side of the rear limiting rod away from the magnetic suction member. The front limiting rod extends along the second direction and is fixed inside the fixing frame. The front limiting slider is fixed to the bottom of the front limiting rod and is slidably connected to the shaft.

9. The seat frame according to claim 8, characterized in that, Both ends of the shaft are fitted with shock-absorbing pads; In the retracted and locked state, the rear limit slider abuts against the shock-absorbing pad near the magnetic attractor. In the sliding adjustable state, when the sliding frame slides to its maximum position, the front limit slider abuts against the shock-absorbing pad away from the magnetic attractor.

10. The seat frame according to any one of claims 1 to 4, 6 to 9, characterized in that, The top of the fixed frame is provided with a guide rail extending along the first direction, and the bottom of the sliding frame is provided with a sliding member, which is slidably connected to the guide rail; wherein, the fixed frame assembly further includes a support wheel disposed on the top of the fixed frame, the support wheel being located at the end of the guide rail away from the magnetic member, and the support wheel being used to support the sliding frame; And / or, the number of the magnetic attracting element and the magnetic attraction mating element is multiple, and the multiple magnetic attracting elements and the multiple magnetic attraction mating elements correspond one-to-one.

11. A seating arrangement, characterized in that, include: The seat frame as described in any one of claims 1 to 10; The base is fixedly connected to the fixing frame; and The seat cushion is fixedly connected to the sliding frame.

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