Folding assembly capable of saving transportation cost, seat framework and seat

Abstract

The invention belongs to the field of seats, and particularly relates to a folding assembly capable of saving transportation cost, a seat framework and a seat. The folding assembly comprises at least two sets of folding parts, each set of folding parts comprises a limiting hinge part, a linkage part, an operation end linkage part and a fixed end linkage part, the four parts are linked in a hinged mode, and hinge shafts are a first axis, a second axis, a third axis and a fourth axis which are parallel to one another. Wherein the third axis and the fourth axis are located on the folding reference plane. In the movable state, the first axis and the second axis are located on the two sides of the folding reference face respectively. In the locking state, the first axis and the second axis are located on the same side of the folding reference face, or any one of the first axis and the second axis falls on the folding reference face. According to the foldable assembly capable of being locked, after the foldable assembly is assembled on a seat framework and a seat, the seat framework and the seat have regular packaging shapes, and the transportation space is saved; the assembly is stable in structure, and packaging material consumption and bumping goods damage can be reduced.

Description

Technical Field

[0001] The invention belongs to the field of seats, and in particular relates to a folding assembly, a seat frame and a seat which can save transportation costs. Background Art

[0002] In traditional seats, the backrest, seat and legs are a fixed-shape whole, which requires a large storage space and has a high transportation cost. In order to save transportation costs, many patents have proposed various foldable or detachable seat structures to improve the utilization of transportation space by reducing the volume. Summary of the invention

[0003] The inventors analyzed and found that in addition to the low utilization rate of transportation space, foldable seats still have other types of transportation costs. In the production and sales process of seats, each component is usually produced by different factories first, assembled and then transported to sellers, and finally shipped to consumers by sellers. On the one hand, the seat frame is irregular in shape, and the outer packaging is worn and punctured during transportation, requiring reinforcement and packaging; on the other hand, the foldable seat frame usually has a large number of movable connection devices, and the squeezing and collision during transportation can easily cause its structure to be dislocated or deformed and collapsed, resulting in cargo damage. In view of this, the present invention hopes to propose a foldable seat that can not only improve the utilization rate of transportation space, but also reduce the transportation costs caused by packaging materials and bumpy cargo damage. Furthermore, the present invention hopes to solve the transportation cost problems of both accessory assembly and finished product sales at one time.

[0004] The present invention is achieved through the following technical solutions: A folding assembly for a seat, comprising at least two groups of folding parts arranged side by side, each group of folding parts comprising: The position-limiting hinge has an operating end hinge part and a fixed end hinge part which are arranged at intervals, wherein the operating end hinge part is provided with a first axis of the operating end hinged activity, and the fixed end hinge part is provided with a second axis of the fixed end hinged activity; The linkage part comprises an operating end linkage part and a fixed end linkage part which are arranged at intervals, wherein the operating end linkage part is provided with a third axis of the operating end hinged activity, and the fixed end linkage part has a fourth axis of the fixed end hinged activity; An operating end linkage member connected to the operating end; the operating end linkage member is hinged to the operating end hinged portion through the first axis, and is hinged to the operating end linkage portion through the third axis; A fixed end linkage member connected to the fixed end; the fixed end linkage member is hinged to the fixed end hinged portion through the second axis, and is hinged to the fixed end linkage portion through the fourth axis; The folding assembly also includes: The limiting hinge is provided with an operating end limiting groove and a fixed end limiting groove at intervals, the operating end linkage member has an operating end sliding portion slidably connected to the operating end limiting groove, and the fixed end linkage member has a fixed end sliding portion slidably connected to the fixed end limiting groove; The two ends of the operating end limit groove cooperate with the operating end sliding part to form a limit structure for the trajectory of the hinged activity of the operating end; the two ends of the fixed end limit groove cooperate with the fixed end sliding part to form a limit structure for the trajectory of the hinged activity of the fixed end; The first axis, the second axis, the third axis, and the fourth axis are parallel to each other, and the third axis and the fourth axis are located on a folding reference plane; In the movable state, the first axis and the second axis are respectively located on both sides of the folding reference surface; in the locked state, the first axis and the second axis are located on the same side of the folding reference surface, or either of them falls on the folding reference surface.

[0005] The folding member proposed in the present invention includes four accessories connected in a hinged manner, and uses two different sets of limiting principles to maintain the stability of the folding member. The first set of principles is mainly aimed at the hinged activities around the first axis and the second axis, and the hinged activity range is controlled by setting the operating end limiting groove and the fixed end limiting groove. The two end states of the activity range correspond to the complete unfolding and complete folding of the folding member respectively. The second set of principles is mainly aimed at the hinged activities around the third axis and the fourth axis. When the first axis and the second axis are located on the same side of the folding reference surface, the positions of the linkage member and the limiting hinge member are intertwined, which can cooperate with the positions of the operating end linkage member and the fixed end linkage member to advance and retreat complementarily, so as to maintain the mobility of the folding member; applying external force to push the first axis or the second axis to the folding reference surface, the four axes will form a triangle on the common vertical plane, the triangle has stability, and the folding member loses its mobility; continuing to apply the aforementioned external force, the first axis or the second axis will be located on the same side of the folding reference surface; if you want to return to the initial movable state, you must use the force opposite to the aforementioned external force. In summary, the folding component can only achieve the conversion of the active state through external force in a specific direction. The present invention utilizes the stability of the folding component to make it anti-squeezing and anti-bumping during transportation, thereby achieving the purpose of reducing transportation costs.

[0006] Preferably, the third axis has a first rotation trajectory around the first axis, and the fourth axis has a second rotation trajectory around the second axis. When folding and unfolding, the first rotation trajectory and the second rotation trajectory have opposite rotation directions. During transportation, when the operating end linkage and the fixed end linkage are squeezed in the same direction at the same time, since the first rotation trajectory is opposite to the second rotation trajectory, the dynamics of the two offset each other, and the folding part continues to maintain structural stability. In addition, for assemblers or users, if it is necessary to unfold or fold the seat frame or folding part equipped with the folding part, they can pry it outward with both hands or squeeze it with both hands relative to each other. This way of applying force is ergonomic and has a labor-saving effect.

[0007] Preferably, the operating end sliding part has a third rotation track around the first axis, and the shape of the operating end limit groove is adapted to the third rotation track; the fixed end sliding part has a fourth rotation track around the second axis, and the shape of the fixed end limit groove is adapted to the fourth rotation track. The shape of the limit groove is adapted to the corresponding rotation track, ensuring that the corresponding sliding part, regardless of the direction of the external force, always conforms to the unfolding and folding movement law set by the inventor, preventing the folding part from structural dislocation, deformation and collapse, or component detachment during bumps.

[0008] Preferably, the limit hinge is a rigid rod-shaped member, and the operating end hinge and the fixed end hinge are respectively located at two ends; the linkage member is a rigid rod-shaped member, and the operating end linkage and the fixed end linkage are respectively located at two ends. The limit hinge and the linkage member are located in the middle section of the folding member, which is the core force-bearing area, and need to have a material and shape suitable for bearing pressure. When the operating end hinge, the fixed end hinge, the operating end linkage, and the fixed end linkage are located at the end positions, it is equivalent to the hinge positions of the operating end linkage and the fixed end linkage being located at the end points of the limit hinge and the linkage member. At this time, the rod-shaped member has a maximum pressure-bearing length, and each hinge can be connected and smoothly transitioned, so that the shape after packaging is more regular, avoiding damage to external packaging materials. Furthermore, adjusting the length of the limit hinge and the linkage member can make the assembled seat frame adapt to fillers of different thicknesses.

[0009] Preferably, the folding assembly comprises two groups of folding parts arranged side by side, respectively located on both sides of the seat.

[0010] Preferably, in the folded state, an accommodation space is formed between the operating end linkage member and the fixed end linkage member. The existence of the accommodation space makes the shape of the folding member itself close to a square in the folded state, which is convenient for packaging. When the folding member is assembled into the seat frame and the seat, the accommodation space can serve as a buffer area in the folded state to accommodate the protruding structure that may exist on the seat frame or the filler on the surface of the seat product, so that the seat frame and the seat product in transportation also have the properties of anti-extrusion and anti-bumping.

[0011] The present invention also provides a foldable seat frame, comprising an operating end and a fixed end, characterized in that: The connection structure between the operating end and the fixed end includes any one of the folding components described above; The operating end is connected to the operating end linkage member to drive the folding component to perform folding and unfolding activities; the fixed end is connected to the fixed end linkage member to drive the folding component to perform folding and unfolding activities.

[0012] Preferably, the operating end at least includes a hard frame connected to the operating end linkage member; the fixed end at least includes a hard frame connected to the fixed end linkage member.

[0013] Preferably, protection rods are provided on both sides of the fixed end and the operating end, and the protection rods are arranged on the outer sides of the corresponding folding parts to prevent the folding components from being directly exposed at the edge positions.

[0014] The present invention also proposes a foldable seat product, including a cover wrapped around the surface of the seat product and detachable chair legs, characterized in that it also includes the seat frame described in any one of the above items; the chair legs are detachably connected to the operating end or the fixed end.

[0015] Compared with the prior art, the technical effects of the present invention are: 1. The folded state of the folding component can be locked to achieve the effect of reinforcing the shape, and the locking operation can be completed during the assembly process of the folding component, without the need for additional packaging and reinforcement steps, saving manpower and material costs.

[0016] 2. The folding assembly only includes four movable connecting devices, and the rotation axes of the four movable connecting devices are parallel to each other, with fewer movement dimensions and simple mechanical design, which reduces the risk of cargo damage caused by structural dislocation or deformation and collapse.

[0017] 3. The folding component is a long strip like a straight rod when unfolded, and is close to a square when folded. The appropriate transportation shape can be adjusted according to the specifications of the packaging box; the seat frame and the finished seat are close to a regular square body after folding; the shapes of the folding component, the seat frame and the finished seat are easy to stack, which can maximize the use of transportation space.

[0018] 4. The seat frame is equipped with a protective rod on the outside of the folding component to prevent the folding component from directly contacting the outside. This makes the seat frame and the folding component in the finished seat still not easily damaged by bumps and collisions, and the shape is stable, which solves the transportation cost problem of the two stages of accessory assembly and finished product sales at one time; 5. Since the locked folding parts can only be opened through the operating end linkage parts, correspondingly, the finished seat can only be opened through the backrest after being folded. Consumers who receive the finished seat only need to fix the seat below and unfold the upper backrest, which is simple, in line with usage habits and easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the side of the limit hinge member when a single set of folding members is in a movable state; Figure 2 It is a schematic diagram of the linkage part side when a single set of folding parts is in a movable state; Figure 3 It is a schematic diagram of the side of the limit hinge member when a single set of folding members is in a folded and locked state; Figure 4 It is a schematic diagram of the linkage member side when a single set of folding members is in a folded and locked state; Figure 5 This is a schematic diagram of the seat frame.

[0020] Legend: 1. Limit hinge; 1.1. Operating end hinge; a. First axis; 1.2. Fixed end hinge; b. Second axis; 1.3. Operating end limit groove; 1.4. Fixed end limit groove; e. Folding reference surface; f. Folding reference surface; 2. Operating end linkage; 2.1. Operating end sliding part; 3. Fixed end linkage; 3.1. Fixed end sliding part; 4. Linkage parts; 4.1. Linkage part at the operating end; c. Third axis; 4.2. Linkage part at the fixed end; d. Fourth axis; 5. Accommodation space; 6. Fixed end; 7. Operation terminal; 8. Protective rod. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments of the specification. Those of ordinary skill in the art will be able to implement the present invention based on these descriptions. In addition, the embodiments of the present invention involved in the following description are generally only embodiments of a part of the present invention, rather than all embodiments. Therefore, based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative work should fall within the scope of protection of the present invention.

[0022] Example 1 See also Figure 1 and Figure 2 A single set of folding parts in the folding assembly includes a limiting hinge part 1, an operating end linkage part 2, a fixed end linkage part 3, and a linkage part 4.

[0023] The limiting hinge 1 is a rigid rod-shaped member, one end of which is connected to the operating end linkage member 2 through the operating end hinge part 1.1, and the hinge point is the first axis a; the other end is connected to the fixed end linkage member 3 through the fixed end hinge part 1.2, and the hinge point is the second axis b; the first axis a is parallel to the second axis b, and the two axes are simultaneously located on the folding reference plane f.

[0024] The linkage member 4 is a rigid rod-shaped member, one end of which is hinged to the operating end linkage member 2 through the operating end linkage part 4.1, and the hinge is the third axis c; the other end is hinged to the fixed end linkage member 3 through the fixed end linkage part 4.2, and the hinge is the fourth axis d; the third axis c is parallel to the fourth axis d, and the two axes are simultaneously located on the folding reference surface e. The third axis c has a first rotation trajectory around the first axis a, and the fourth axis d has a second rotation trajectory around the second axis b.

[0025] The limiting hinge 1 and the linkage 4 are located in the middle section of the folding part, which is the core stress-bearing area and needs to have a material and shape suitable for bearing pressure. When the operating end hinge 1.1, the fixed end hinge 1.2, the operating end linkage 2.1, and the fixed end linkage 3.1 are located at both ends, it is equivalent to the operating end linkage 2 and the fixed end linkage 3 being hinged at the end points of the limiting hinge 1 and the linkage 4. At this time, the rod-shaped member has the maximum pressure-bearing length, and each hinge can be connected and smoothly transitioned, making the shape after packaging more regular and avoiding damage to external packaging materials. Furthermore, adjusting the length of the limiting hinge 1 and the linkage 4 can make the assembled seat frame adapt to fillers of different thicknesses.

[0026] See also Figure 1 and Figure 3, the range of movement of unfolding and folding of a single set of folding parts is limited by a specific structure. An operating end sliding part 2.1 is provided on the operating end linkage part 2. In the alternative embodiment, the operating end sliding part 2.1 is a round pin that penetrates the operating end linkage part 2 and the operating end limiting groove 1.3, and the round pin has a third rotation trajectory around the first axis a; the two ends of the operating end limiting groove 1.3 respectively correspond to the starting position and the end position of the third rotation trajectory, and the operating end sliding part 2.1 can slide freely in the operating end limiting groove 1.3. A fixed end sliding part 3.1 is provided on the fixed end linkage part 3. In the alternative embodiment, the fixed end sliding part 3.1 is a round pin that penetrates the fixed end linkage part 3 and the fixed end limiting groove 1.4, and the round pin has a fourth rotation trajectory around the second axis b; the two ends of the fixed end limiting groove 1.4 respectively correspond to the starting position and the end position of the fourth rotation trajectory, and the fixed end sliding part 3.1 can slide freely in the operating end limiting groove 1.3. In a preferred embodiment, the overall shape of the operating end limit groove 1.3 is adapted to the third rotation trajectory, and the overall shape of the fixed end limit groove 1.4 is adapted to the fourth rotation trajectory, ensuring that the corresponding sliding part in the limit groove is always in accordance with the unfolding and folding movement rules set by the inventor regardless of the direction of the external force, thereby preventing the folding parts from structural dislocation, deformation and collapse, or component detachment during bumps.

[0027] See also Figure 2 and Figure 4 , the mobility of a single set of folding parts is limited by the positional relationship of the four axes. In the movable state, the operating end linkage part 2 or the fixed end linkage part 3 can be used alone as an active part to drive the activity of the folding parts. In this group of embodiments, the counterclockwise rotation of the operating end linkage part 2 around the first axis a and the clockwise rotation of the fixed end linkage part 3 around the second axis b correspond to the folding action of the folding part, while the clockwise rotation of the operating end linkage part 2 around the first axis a and the counterclockwise rotation of the fixed end linkage part 3 around the second axis b correspond to the unfolding direction of the folding part; in short, the first rotation trajectory and the second rotation trajectory have opposite rotation directions. Taking the case where the fixed-end linkage 3 is used as the active member as an example, when the fixed-end linkage 3 rotates counterclockwise around the second axis b, the fixed-end hinge 3.1 and the fourth axis d on the fixed-end linkage 3 both have the dynamics of rotating counterclockwise around the second axis b; wherein, the dynamics of the fourth axis d are transmitted to the third axis c located on the other side of the folding reference plane f through the linkage 4, and the third axis c has a rotation trajectory opposite to that of the fourth axis d, that is, the third axis c will rotate clockwise around the first axis a, and at this time, the operating-end linkage 2 becomes the driven member of the fixed-end linkage 3, and the two jointly complete the folding action of the folding member. During transportation, when the operating-end linkage 2 and the fixed-end linkage 3 are squeezed in the same direction at the same time, since the first rotation trajectory is opposite to the second rotation trajectory, the dynamics of the two cancel each other out, and the folding member continues to maintain structural stability.

[0028] See also Figure 3 and Figure 4 , the single set of folding parts is in a completely folded state and also in a locked state. Due to the existence of the accommodating space 5, the folding part is square as a whole. The operating end sliding part 2.1 has slid to the edge of the operating end limit groove 1.3, and the counterclockwise rotation of the operating end linkage part 2 is blocked; the fixed end sliding part 3.1 has also slid to the edge of the fixed end sliding part 1.4, and the clockwise rotation of the fixed end linkage part 3 is blocked. A stable accommodating space 5 is formed between the operating end linkage part 2 and the fixed end linkage part 3.

[0029] In a preferred embodiment, the first axis a is located on the folding reference plane e, that is, the first axis a, the third axis c and the fourth axis d are on the same plane, and the four axes will form a triangle with the connecting line on the common vertical plane. At this time, if the fixed end linkage member 3 attempts to rotate counterclockwise, the rotational force generated by the fourth axis d will be transmitted to the first axis a along the third axis c, and the linkage of the operating end linkage member 2 cannot be caused. In an alternative embodiment, the first axis a and the second axis b are located on the same side of the folding reference plane e, and the corresponding third axis c and fourth axis d are also located on the same side of the folding reference plane f. At this time, if the fixed end linkage member 3 attempts to rotate counterclockwise, the linkage member 4 transmits the dynamics of the fourth axis d to the third axis c on the same side of the folding reference plane f, and the third axis c will also rotate counterclockwise, and the operating end linkage member 2 will have a folding tendency instead; the fixed end linkage member 3 can neither drive the operating end linkage member 2 to unfold, nor can it independently unfold, and the active state of the folding member will be stuck.

[0030] In these two types of embodiments, if the operating end linkage 2 attempts to rotate clockwise, the third axis c on the same side also rotates clockwise, and the operating end linkage 2 is temporarily blocked; due to the tolerance between the mechanical parts, the third axis c can immediately return to the opposite side of the fourth axis d after overcoming the resistance. At this time, the third axis c has a rotation trajectory opposite to the fourth axis d again, the fixed end linkage 3 can rotate counterclockwise, and the operating end linkage 2 can rotate clockwise, so that the folding part can be easily unfolded. In other words, the folding state in this preferred embodiment has a stable self-locking effect, and only the operating end linkage 2 can serve as the active part of the unfolding activity.

[0031] Example 2 See also Figure 5, a seat frame, including an operating end 6 and a fixed end 7. The fixed end frame and the operating end frame are connected by a set of folding components in Example 1, and each set of folding components includes two groups of folding parts described in Example 1, and the folding parts are arranged side by side on both sides of the seat frame. The operating end linkage part 2 of the folding part is connected to the frame of the operating end 6, and the fixed end linkage part 3 is connected to the frame of the fixed end 7; through the connection relationship, the dynamic movement of the folding part is transmitted to the operating end 6 and the fixed end 7, and the seat frame can perform folding and unfolding activities similar to the folding part. When the folding part is in a fully folded state, the folding part temporarily loses its activity, and the seat frame also remains in a folded state. The accommodating space 5 between the operating end linkage part 2 and the fixed end linkage part 3 is extended, and there is also a distance between the operating end 6 and the fixed end 7 to accommodate the protruding structure that may exist in the seat frame.

[0032] In a preferred embodiment, the operating end 6 corresponds to the chair back, and the fixed end 7 corresponds to the chair seat, so that the operator places the chair seat at the bottom and the chair seat at the top when unfolding or folding, which is in line with usage habits.

[0033] In a preferred embodiment, protective rods 8 are provided on both side frames of the operating end 6 and the fixed end 7. The protective rods 8 are located on the outside of the corresponding folding parts, which can not only prevent the folding components from being directly exposed to the edge position, but also widen the seat and backrest after being assembled into the seating product to increase comfort.

[0034] Example 3 A seat product comprises detachable chair legs, the seat frame described in Example 2, a filler wrapped around the seat frame, and a cover wrapped around the filler.

[0035] During the production and assembly of the seat products, the seat frame can be stably in the unfolded state, which is convenient for the assembly workers to operate. When it is necessary to ship, the assembly workers can first stabilize the seat, then press down the backrest to complete the folding. The folded backrest and seat are nearly parallel, and the overall shape of the seat is regular, which is convenient for packing, shipping, etc. After the consumer receives the seat product, he first places the soft chair in the direction of use, first presses the seat, and at the same time unfolds the backrest upwards; there will be resistance in the initial stage of unfolding, and after a little force to overcome the resistance, the operating end can be smoothly unfolded and restored to the state of use.

Claims

1. A folding assembly for a seat, comprising at least two groups of folding members arranged side by side, each group of folding members comprising: The position-limiting hinge (1) comprises an operating end hinge part (1.1) and a fixed end hinge part (1.2) which are arranged at intervals, wherein the operating end hinge part (1.1) is provided with a first axis (a) for operating end hinged activity, and the fixed end hinge part (1.2) is provided with a second axis (b) for fixed end hinged activity; The linkage member (4) comprises an operating end linkage portion (4.1) and a fixed end linkage portion (4.2) which are arranged at intervals, wherein the operating end linkage portion (4.1) is provided with a third axis (c) for hinged movement of the operating end, and the fixed end linkage portion (4.2) has a fourth axis (d) for hinged movement of the fixed end; An operating end linkage member (2) is connected to the operating end (6); the operating end linkage member (2) is hingedly connected to the operating end hinged portion (1.1) via the first axis (a), and is hingedly connected to the operating end linkage portion (4.1) via the third axis (c); A fixed end linkage member (3) connected to the fixed end (7); the fixed end linkage member (3) is hingedly connected to the fixed end hinged portion (1.2) via the second axis (b), and is hingedly connected to the fixed end linkage portion (4.2) via the fourth axis (d); The folding assembly also includes: An operating end limiting groove (1.3) and a fixed end limiting groove (1.4) are arranged at intervals on the limiting hinge (1); the operating end linkage member (2) has an operating end sliding portion (2.1) slidably connected to the operating end limiting groove (1.3); and the fixed end linkage member (3) has a fixed end sliding portion (3.1) slidably connected to the fixed end limiting groove (1.4); The two ends of the operating end limit groove (1.3) cooperate with the operating end sliding part (2.1) to form a limit structure for the trajectory of the hinged activity of the operating end; the two ends of the fixed end limit groove (1.4) cooperate with the fixed end sliding part (3.1) to form a limit structure for the trajectory of the hinged activity of the fixed end; The first axis (a), the second axis (b), the third axis (c), and the fourth axis (d) are parallel to each other, and the third axis (c) and the fourth axis (d) are located on the folding reference surface (e); In the movable state, the first axis (a) and the second axis (b) are respectively located on both sides of the folding reference surface (e); in the locked state, the first axis (a) and the second axis (b) are located on the same side of the folding reference surface (e), or either of them falls on the folding reference surface (e).

2. The folding assembly according to claim 1, characterized in that: The third axis (c) has a first rotation track around the first axis (a), and the fourth axis (d) has a second rotation track around the second axis (b). When folding and unfolding, the first rotation track and the second rotation track have opposite rotation directions.

3. The folding assembly according to claim 1, characterized in that: The fixed end sliding portion (3.1) has a third rotation track around the first axis (a), and the shape of the fixed end limit groove (1.4) is compatible with the third rotation track; the operating end sliding portion (2.1) has a fourth rotation track around the second axis (b), and the shape of the operating end limit groove (1.3) is compatible with the fourth rotation track.

4. The folding assembly according to claim 1, characterized in that: The position-limiting hinge (1) is a rigid rod-shaped member, and the operating end hinge part (1.1) and the fixed end hinge part (1.2) are respectively located at two ends; the linkage member (4) is a rigid rod-shaped member, and the operating end linkage part (4.1) and the fixed end linkage part (4.2) are respectively located at two ends.

5. The folding assembly according to claim 1, characterized in that: The folding assembly comprises two groups of folding parts arranged side by side, which are respectively located on both sides of the seat.

6. The folding assembly according to claim 1, characterized in that: In the folded state, an accommodating space (5) is formed between the operating end linkage member (2) and the fixed end linkage member (3).

7. A foldable seat frame, comprising an operating end and a fixed end, characterized in that: The connection structure between the operating end (6) and the fixed end (7) comprises a folding assembly as described in any one of claims 1 to 6; The operating end (6) is connected to the operating end linkage member (2) to drive the folding component to perform folding and unfolding activities; the fixed end (7) is connected to the fixed end linkage member (3) to drive the folding component to perform folding and unfolding activities.

8. The seat frame according to claim 7, characterized in that: The operating end (6) comprises at least a hard frame connected to the operating end linkage member (2); and the fixed end (7) comprises at least a hard frame connected to the fixed end linkage member (3).

9. The seat frame according to claim 7, characterized in that: Protection rods (8) are provided on the peripheries of the frames on both sides of the operating end (6) and the fixed end (7).

10. A foldable seat product, comprising a cover wrapped around the surface of the seat product and detachable chair legs, characterized in that: It also comprises the seat frame as claimed in any one of claims 7 to 9; the chair legs are detachably connected to the operating end (6) or the fixed end (7).

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