A sofa frame mechanism with cable drive and backrest reclining function

Abstract

The present invention discloses a sofa frame mechanism that is compatible with cable drive and backrest lying function, which includes a seat cushion frame and a backrest frame, a shaft body passing through the backrest frame, and cable assemblies at opposite ends of the shaft body, the cable assemblies including a U-shaped guide rail, a transmission cable and a sprocket, a protective pad is arranged between the two transmission cables, and the sprocket is sleeved on the shaft body and can rotate relative to the shaft body, and also includes a swing arm and a rotating shaft rotatably arranged on the seat cushion frame, a transmission gear is provided on the rotating shaft, and the transmission cable is conveniently sleeved through the cable support frame, and the protective pad can be driven to be electrically adjusted by rotating the electric drive sprocket, so that the protective pad can be covered on the massage movement when the user is lying down, which helps the user to rest, and the backrest frame can be driven to be adjusted in angle by the swing arm, so that it is suitable for lying, lying, sitting or performing reverse bow training, and the two sets of adjustment mechanisms are compatible and do not interfere with each other, the structural layout is relatively reasonable, and the practicality is stronger.

Description

Technical Field

[0001] The present invention relates to the technical field of massagers, and in particular to a sofa frame mechanism that is compatible with cable drive and backrest reclining functions. Background Art

[0002] In the prior art, massage chairs are provided with a moving massage mechanism, which can be placed against the human body to perform kneading or tapping massage when in use. When the massage function is not in use, the user lies flat on the massage chair, and the massage mechanism will press against the human body, making the user less comfortable when lying flat. Therefore, a protective pad is required to cover the massage mechanism to prevent the massage mechanism from being pressed against the human body during rest. However, most of the protective pads currently on the market are manually adjusted, which has limitations and is inconvenient to use. Summary of the Invention

[0003] The purpose of the present invention: In order to overcome the defects of the prior art, the present invention provides a sofa frame mechanism that is compatible with cable drive and backrest lying function. The cable support frame is used to facilitate the transmission of the cable for installation, and the electric drive sprocket is rotated to drive the pad for electric adjustment, so that the pad can be covered on the massage movement when lying down, which helps the user to rest, and the swing arm can drive the backrest frame to adjust the angle, making it suitable for lying, sitting or performing reverse bow training, and the two sets of adjustment mechanisms are compatible and do not interfere with each other, the structural layout is relatively reasonable, and the practicality is stronger.

[0004] The present invention discloses a sofa frame mechanism that is compatible with cable drive and backrest lying function, comprising a seat cushion frame and a backrest frame, the backrest frame being rotatably arranged on the seat cushion frame, and being characterized in that: an axis body is passed through the backrest frame, and cable assemblies are provided at opposite ends of the axis body, the cable assemblies each comprising a U-shaped guide rail, a transmission cable and a sprocket for driving the transmission cable movement, the sprocket and the corresponding U-shaped guide rail cooperate to form a cable support frame, the transmission cable is sleeved on the corresponding cable support frame, a pad is provided between the two transmission cables, the pad is fixed on the transmission cable and moves synchronously with the transmission cable, and the sprocket is sleeved on the axis body and can rotate relative to the axis body, and the mechanism also comprises a swing arm and a rotating shaft rotatably arranged on the seat cushion frame, the swing arm comprises a rotating end sleeved on the rotating shaft and capable of rotating relative to the rotating shaft, and a swing end provided on the axis body and capable of driving the axis body to swing, the swing arm can drive the backrest frame to flip backward to form an anti-arch training frame, and the rotating shaft is also provided with a transmission gear that rotates synchronously with the transmission cable and is used to drive the sprocket to rotate.

[0005] By adopting the above technical solution, the rotating shaft can be driven to rotate by the motor. At this time, the rotating end of the swing arm rotates relative to the rotating shaft, so the swing arm does not move. Then the sprocket is driven to rotate by the transmission gear, thereby driving the transmission cable to transmit the movement, thereby driving the pad to be adjusted. The pad can be adjusted to move electrically, and no manual adjustment is required. It is more convenient and can also prevent the pad from falling or being forgotten. It is also more stable when used. When the backrest needs to be adjusted for lying or reverse arch training, the swing arm can be driven by the motor to rotate relative to the rotating shaft. At this time, the swing end will swing, thereby driving the shaft to swing, which can drive the entire backrest to be adjusted. By adopting this structure, the backrest can be driven to swing and adjust the position while the transmission cable is transmitting. It can be controlled by two independently set motors. The two sets of mechanisms do not interfere with or affect each other. Its structural layout is relatively reasonable, and the backrest can also be flipped to the reverse arch state for sit-up training or waist stretching.

[0006] The present invention is further provided with: a guide rail groove is provided on the U-shaped guide rail, the guide rail groove is a through groove, and a movable part is provided on the guide rail groove for guiding and sliding. Two adjacent movable parts are connected by a transmission cable to form a cable unit. A plurality of caliper grooves are formed by recesses at intervals on the circumference of the sprocket. A caliper is telescopically provided on each caliper groove. An elastic part is provided at the bottom of the caliper groove for pushing the caliper outward to resist the movable part so that the transmission cable is tensioned. At this time, the rotation of the sprocket can drive the movable part to move through the caliper, so that the transmission cable drives the guard pad to move. It also includes a limiting structure for limiting the caliper from detaching from the caliper groove.

[0007] By adopting the above technical solution, the elastic part pushes the caliper out and tensions it on the movable part, so that the entire transmission cable can be tensioned. At this time, the sprocket rotates, and the friction force between the sprocket and the movable part can drive the movable part to rotate around the sprocket, thereby driving the transmission cable to perform a circular motion, which can drive the protective pad to be electrically adjusted.

[0008] The present invention is further provided with: the limiting structure includes blocking members located on opposite sides of the sprocket for limiting the sideslip of the caliper, and an extension rod provided on the caliper. The extension rod passes through one of the blocking members to limit the caliper from falling out of the caliper slot. The blocking member is also provided with an avoidance space for the extension rod to move around.

[0009] By adopting the above technical solution, the blocking member can block the left and right sides of the caliper slot to prevent the caliper from sliding sideways, and then an extension rod is passed through the blocking member to prevent the caliper from being popped out of the caliper slot by the elastic member, making it more stable when in use, and the avoidance space is set to allow the caliper to extend and retract normally without obstruction.

[0010] The present invention is further configured as follows: a roller is provided at the bottom of the movable part, the roller is rotatably arranged on the guide rail groove, the U-shaped guide rail is further provided with an avoidance groove for the movable part to extend and slide, the notch of the avoidance groove is smaller than the outer diameter of the roller, and the caliper is further provided with a U-shaped abutting surface for abutting against the roller, when the roller rolls out of the guide rail groove from the outlet end, the elastic member can drive the U-shaped abutting surface of the caliper to abut against the roller.

[0011] By adopting the above technical solution, the friction between the movable part and the U-shaped guide rail can be reduced by setting a roller, thereby preventing the movable part from slipping relative to the caliper, making it more stable when in use. In addition, the notch of the avoidance groove is smaller than the outer diameter of the roller, which can prevent the movable part from falling out of the notch of the avoidance groove. The U-shaped abutment surface can increase the contact area with the roller, making it easier to drive the movable part to rotate.

[0012] The present invention is further provided with a spring plate seat arranged beside the blocking member, the spring plate seat is provided with spring plates for pushing the extension rod outward at intervals along the circumferential direction, the spring plates are provided in a one-to-one correspondence with the extension rods, and a limiter for limiting the outward sliding of the spring plate seat is provided, the extrusion member is located between the limiter and the blocking member, each extension rod is provided with a snap-fit groove, and the spring plate is provided with a hook corresponding to the snap-fit groove

[0013] By adopting the above technical solution, the spring sheet cooperates with the elastic part to prevent the caliper from tilting due to the resetting of the elastic part, making the caliper more stable when in use and not getting stuck. In addition, the spring sheet can be prevented from detaching from the extension rod by cooperating with the hook and the clamping groove.

[0014] The present invention is further configured as follows: a bearing is sleeved on the rotating shaft, the rotating end of the swing arm is sleeved on the bearing and rotates synchronously with the outer ring of the bearing, a swing arm driving gear is rotatably arranged on the rotating shaft, and the swing arm driving gear is linked to the rotating end.

[0015] By adopting the above technical solution, the rotating end can rotate relatively. When the swing arm driving gear rotates, the rotating end can be driven to rotate relative to the rotating shaft. At this time, the swing end can be driven to swing, thereby driving the backrest frame to swing.

[0016] A further configuration of the present invention is that it also includes an extrusion member for extruding the extension rod so that the caliper is retracted into the caliper groove. The extrusion member is arranged in an arc shape and is located on the outside of the extension rod, and both ends of the extrusion member are provided with an arc-shaped transition section, one of the transition sections corresponds to the inlet end, and the other transition section corresponds to the outlet end.

[0017] The above technical solution can facilitate the connection between the caliper and the roller, making it more stable during use.

[0018] The present invention is further provided with a threading ring on the top of each movable part, and the transmission cable is a whole cable, which passes through each threading ring and is bound thereto.

[0019] By adopting the above technical solution, a cable is used for threading, which makes it more stable when in use, and a threading ring is provided to facilitate the transmission of the cable for binding and installation.

[0020] The present invention is further provided with a gear hole arranged along the swing trajectory of the shaft, the shaft is inserted into the gear hole, and a limit switch for limiting the swing angle of the shaft is provided on the gear hole.

[0021] By adopting the above technical solution, the gear hole can facilitate the gear adjustment of the backrest frame, and the limit switch can limit the swing angle of the backrest frame to prevent it from rotating at an excessive angle.

[0022] The present invention is further provided with a movable member guide rail arranged on the outer side of the sprocket along the circumferential direction for limiting the deflection of the movable member, wherein one end of the movable member guide rail is connected to the inlet end, and the other end is connected to the outlet end.

[0023] With the above technical solution, when the roller rolls out of the guide groove from the outlet end, it is easy to fall over, making the mechanism unable to operate. By having the movable part pass through the movable part guide rail, it can prevent it from falling over, making it more stable during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the overall flat-lying structure of the present invention;

[0025] Figure 2 This is a schematic structural diagram of the present invention when the protective pad is moved to the rear side of the backrest;

[0026] Figure 3 Schematic diagram of the internal structure of the present invention;

[0027] Figure 4 Schematic diagram of the internal structure of the present invention;

[0028] Figure 5 This is a diagram showing the coordination of the components on the sprocket of the present invention;

[0029] Figure 6 for Figure 5 Section view along AA;

[0030] Figure 7 for Figure 5 Stereogram;

[0031] Figure 8 for Figure 7 Remove a caliper structure diagram;

[0032] Figure 9 This is a schematic diagram of the caliper structure of the present invention;

[0033] Figure 10 This is a diagram showing the coordination of the shrapnel and the shrapnel seat of the present invention;

[0034] Figure 11 for Figure 2 Enlarged view of part a;

[0035] Figure 12 for Figure 3 Part b enlarged view;

[0036] Figure 13 for Figure 4 Enlarged view of local c;

[0037] Figure 14 The U-shaped guide rail of the present invention has an abutment guide rail;

[0038] Figure 15 The U-shaped guide rail of the present invention does not have an abutment guide rail.

[0039] Cushion frame 1, backrest frame 2, protective pad 4, transmission cable 5, movable part 51, roller 511, threading ring 512, sprocket 6, caliper groove 61, caliper 7, U-shaped abutment surface 71, elastic part 8, blocking part 91, extension rod 92, snap-on groove 921, avoidance space 911, swing arm 10, rotating end 101, swing end 102, rotating shaft 20, shaft body 30, U-shaped guide rail 40, guide groove 401, movable part guide rail 402, shrapnel seat 50, shrapnel 501, hook 5011, extrusion part 60, transition section 601, bearing 70, swing arm drive gear 80, gear hole 90, limit switch 100, transmission gear 200, and limit part 300. DETAILED DESCRIPTION

[0040] The following describes the specific embodiments of the present invention in detail with reference to the accompanying drawings:

[0041] In the description of the present invention, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "back", "inside", "outside", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention.

[0042] The present invention discloses a sofa frame mechanism that is compatible with cable drive and backrest reclining function, which includes a seat cushion frame 1 and a backrest frame 2. The backrest frame 2 is rotatably arranged on the seat cushion frame 1. In the embodiment of the present invention, a shaft body 30 is passed through the backrest frame 2. Both opposite ends of the shaft body 30 are provided with a cable assembly. The cable assembly includes a U-shaped guide rail 40, a transmission cable 5 and a sprocket 6 for driving the transmission cable 5 to move. The sprocket 6 cooperates with the corresponding U-shaped guide rail 40 to form a cable support frame. The transmission cable 5 is sleeved on the corresponding cable support frame. The two transmission cables 5 are connected A protection pad 4 is provided, which is fixed on the transmission cable 5 and moves synchronously with it, and the sprocket 6 is mounted on the shaft 30 and can rotate relative to the shaft 30. It also includes a swing arm 10 and a rotating shaft 20 rotatably arranged on the seat cushion frame 1. The swing arm 10 includes a rotating end 101 mounted on the rotating shaft 20 and can rotate relative to the rotating shaft 20, and a swing end 102 provided on the shaft 30 and can drive the shaft 30 to swing. The swing arm 10 can drive the backrest frame 2 to flip backward to form an anti-bow training frame. The rotating shaft 20 is also provided with a transmission gear 200 that rotates synchronously with it and is used to drive the sprocket 6 to rotate.

[0043] By adopting the above technical solution, the rotating shaft 20 can be driven to rotate by the motor. At this time, the rotating end 101 of the swing arm 10 rotates relative to the rotating shaft 20, so the swing arm 10 does not move, and then the sprocket 6 is driven to rotate by the transmission gear, thereby driving the transmission cable 5 to transmit the movement, thereby driving the pad 4 to be adjusted. The pad 4 can be adjusted to move by an electric method, and no manual adjustment is required. It is more convenient and can also prevent the pad 4 from falling or being forgotten. It is also more stable when used. When it is necessary to adjust the backrest 2 for lying down or reverse arch training, the swing arm 10 can be driven by the motor to rotate relative to the rotating shaft 20. At this time, the swing end 102 will swing, thereby driving the shaft body 20 to swing, which can drive the backrest 2 as a whole to be adjusted. By adopting this structure, the backrest 2 can be driven to swing and adjust the position while the transmission cable 5 transmits. It can be controlled by two independently arranged motors. The two sets of mechanisms do not interfere with or affect each other. Its structural layout is relatively reasonable, and the backrest can also be flipped to the reverse arch state for sit-up training or waist stretching.

[0044] It also includes a movable part guide rail 402 arranged along the circumferential direction on the outside of the sprocket 6 for limiting the deflection of the movable part 51. One end of the movable part guide rail 402 is connected to the inlet end, and the other end is connected to the outlet end. When the roller 511 rolls out of the guide groove 401 from the outlet end, it is easy to deflect, thereby making the mechanism unable to operate. The movable part 51 is inserted into the movable part guide rail 402 to prevent it from tipping over, making it more stable during operation. It is most preferred that a guide hole is provided on the movable part guide rail 402, and the movable part 51 is partially located in the guide hole and passes through the guide hole, so that it can be guided and slid in the guide hole.

[0045] The U-shaped guide rail 40 is provided with a guide rail groove 401, which is a through groove, and a movable member 51 is provided on the guide rail groove 401 for guiding and sliding. Two adjacent movable members 51 are connected via the transmission cable 5 to form a cable unit. A plurality of caliper grooves 61 are formed by recesses at intervals on the circumference of the sprocket 6. A caliper 7 is telescopically provided on each caliper groove 61. An elastic member 8 is provided at the bottom of the caliper groove 61 for pushing the caliper 7 outward to resist the movable member 51 so as to tighten the transmission cable 5 (the elastic member 8 is most preferably a spring, but can also be a retaining spring or a spring clip). ), at this time, the rotation of the sprocket 6 can drive the movable part 51 to move through the caliper 7, so that the transmission cable 5 drives the pad to move, and also includes a limiting structure that limits the caliper 7 from disengaging from the caliper groove 61. The elastic part 8 pushes the caliper 7 out and tensions it on the movable part 51, so that the entire transmission cable 5 can be tensioned. At this time, through the rotation of the sprocket 6, the friction force between the sprocket 6 and the movable part 51 can drive the movable part 51 to rotate around the sprocket 6, thereby driving the transmission cable 5 to perform a circular motion, which can drive the pad 4 to be electrically adjusted.

[0046] The limiting structure includes a blocking member 91 located on opposite sides of the sprocket 6 for limiting the side sliding of the caliper 7 and an extension rod 92 provided on the caliper 7. The extension rod 92 passes through one of the blocking members 91 to form a limit for the caliper 7 to fall out of the notch of the caliper groove 61. The blocking member 91 is also provided with an avoidance space 911 for the extension rod 92 to move around. The blocking member 91 can block the left and right sides of the caliper groove 61 to prevent the caliper 7 from sliding sideways, and then the extension rod 92 passes through the blocking member 91 to prevent the caliper 7 from being ejected from the caliper groove 61 by the elastic member 8, so that it is relatively stable when in use, and the avoidance space 911 is provided to allow the caliper 7 to extend and retract normally without being hindered. It is most preferred that one of the blocking members 91 is a toothed disc, which is meshed with the transmission gear 200.

[0047] The U-shaped abutting surface 71 can increase the contact area with the roller 511, thereby driving the movable part 51 to rotate.

[0048] The shrapnel seat 50 is provided with shrapnel 501 for pushing the extension rod 92 outward at intervals along the circumferential direction of the shrapnel seat 50. The shrapnel 501 is provided in a one-to-one correspondence with the extension rod 92. The shrapnel 501 also includes a limiter 300 for limiting the outward sliding of the shrapnel seat 50. Each extension rod 92 is provided with a snap-in groove 921. The shrapnel 501 is provided with a hook 5011 corresponding to the snap-in groove 921. The shrapnel 501 cooperates with the elastic member 8 to prevent the caliper 7 from tilting due to the reset of the elastic member 8, so that the caliper 7 is more stable during use and will not get stuck. The shrapnel 501 can be prevented from detaching from the extension rod 92 by cooperating with the snap-in groove 921. The shrapnel 501 can be prevented from detaching from the extension rod 92 by cooperating with the snap-in groove 921.

[0049] A bearing 70 is provided on the rotating shaft 20, and the rotating end 101 of the swing arm 10 is provided on the bearing 70 and rotates synchronously with the outer ring of the bearing 70. A swing arm driving gear 80 is rotatably provided on the rotating shaft 20, and the swing arm driving gear 80 is linked with the rotating end 101 so that the rotating end 101 can rotate relative to the rotating shaft 20. When the swing arm driving gear 80 rotates, the rotating end 101 can be driven to rotate relative to the rotating shaft 20. At this time, the swing end 102 can be driven to swing, thereby driving the backrest frame 2 to swing.

[0050] It also includes an extrusion member 60 for squeezing the extension rod 92 so that the caliper 7 is retracted into the caliper groove 61. The extrusion member 60 is located between the limit member 300 and the blocking member 91. The extrusion member 60 is arranged in an arc shape and is located on the outside of the extension rod 92, and both ends of the extrusion member 60 are provided with an arc-shaped transition section 601, one of the transition sections 601 corresponds to the inlet end, and the other transition section 601 corresponds to the outlet end, which can facilitate the connection between the caliper 7 and the roller 511, making it more stable when in use.

[0051] A threading ring 512 is provided on the top of each movable part 51. The transmission cable 5 is a whole cable. The transmission cable 5 is passed through each threading ring 512 and is bound to it. Using one cable for threading makes it more stable when in use, and the threading ring 512 is provided to facilitate the binding and installation of the transmission cable 5.

[0052] The seat cushion frame 1 is also provided with a gear hole 90 arranged along the swing trajectory of the shaft body 30. The shaft body 30 is inserted into the gear hole 90, and the gear hole 90 is provided with a limit switch 100 for limiting the swing angle of the shaft body 30. The gear hole 90 can facilitate the gear adjustment of the backrest frame 2, and the limit switch 100 can limit the swing angle of the backrest frame to prevent its rotation angle from being too large.

Claims

1. A sofa frame mechanism compatible with cable drive and backrest reclining function, comprising a seat cushion frame (1) and a backrest frame (2), wherein the backrest frame (2) is rotatably arranged on the seat cushion frame (1), characterized in that: The backrest frame (2) is provided with a shaft (30), and opposite ends of the shaft (30) are provided with cable assemblies, and the cable assemblies include a U-shaped guide rail (40), a transmission cable (5) and a sprocket (6) for driving the transmission cable (5) to move. The sprocket (6) cooperates with the corresponding U-shaped guide rail (40) to form a cable support frame, and the transmission cable (5) is sleeved on the corresponding cable support frame. A pad (4) is provided between the two transmission cables (5), and the pad (4) is fixed. The invention relates to a seat cushion frame (1) and a seat cushion frame (2) which is provided with a swing arm (10) and a rotating shaft (20) which is provided on the seat cushion frame (1) and can rotate relative to the rotating shaft (20). The swing arm (10) includes a rotating end (101) which is provided on the rotating shaft (20) and can rotate relative to the rotating shaft (20) and a swing end (102) which is provided on the seat cushion frame (30) and can drive the seat cushion frame (30) to swing. The frame (2) is turned backward to form an anti-bow training frame, and a transmission gear (200) is provided on the rotating shaft (20) for rotating synchronously with the rotating shaft and for driving the sprocket (6) to rotate. A guide rail groove (401) is provided on the U-shaped guide rail (40), and the guide rail groove (401) is a through groove. A movable member (51) is provided on the guide rail groove (401) for guiding and sliding. Two adjacent movable members (51) are connected by a transmission cable (5) to form a cable unit. The circumference of the sprocket (6) is spaced apart by recessed grooves. A plurality of caliper grooves (61) are formed by the depression, and a caliper (7) is telescopically provided on each caliper groove (61). An elastic member (8) is provided at the bottom of the caliper groove (61) for pushing the caliper (7) outward to abut against the movable member (51) so as to tighten the transmission cable (5). At this time, the sprocket (6) rotates through the caliper (7) to drive the movable member (51) to move, so that the transmission cable (5) drives the pad to move. A limiting structure is also included for limiting the caliper (7) from leaving the caliper groove (61).

2. The sofa frame mechanism with cable drive and backrest reclining function according to claim 1, characterized in that: The limiting structure includes blocking members (91) located on opposite sides of the sprocket (6) for limiting the sideways sliding of the caliper (7) and an extension rod (92) provided on the caliper (7). The extension rod (92) passes through one of the blocking members (91) to form a limit for the caliper (7) to fall out of the notch of the caliper slot (61). The blocking member (91) is also provided with an avoidance space (911) for the extension rod (92) to move around.

3. A sofa frame mechanism with cable drive and backrest reclining function according to claim 1 or 2, characterized in that: A roller (511) is provided at the bottom of the movable member (51), and the roller (511) is rotatably arranged on the guide rail groove (401). The U-shaped guide rail (40) is also provided with an avoidance groove for the movable member (51) to extend and slide, and the notch of the avoidance groove is smaller than the outer diameter of the roller (511). The caliper (7) is also provided with a U-shaped abutting surface (71) for abutting against the roller (511). When the roller (511) rolls out of the guide rail groove (401) from the outlet end, the elastic member (8) can drive the U-shaped abutting surface (71) of the caliper (7) to abut against the roller (511).

4. The sofa frame mechanism with cable drive and backrest reclining function according to claim 3, characterized in that: The invention also includes a spring plate seat (50) arranged beside the blocking member (91), and spring plates (501) for pushing the extension rod (92) outward are arranged at intervals along the circumferential direction on the spring plate seat (50), and the spring plates (501) and the extension rods (92) are arranged in a one-to-one correspondence. The invention also includes a limiting member (300) for limiting the outward sliding of the spring plate seat (50), and each extension rod (92) is provided with a clamping groove (921), and the spring plate (501) is provided with a hook (5011) corresponding to the clamping groove (921).

5. The sofa frame mechanism with cable drive and backrest reclining function according to claim 4, characterized in that: The rotating shaft (20) is provided with a bearing (70), the rotating end (101) of the swing arm (10) is provided on the bearing (70) and rotates synchronously with the outer ring of the bearing (70), and a swing arm driving gear (80) is rotatably provided on the rotating shaft (20), and the swing arm driving gear (80) is linked with the rotating end (101).

6. The sofa frame mechanism with cable drive and backrest reclining function according to claim 5, characterized in that: The invention also includes an extrusion member (60) for extruding the extension rod (92) so that the caliper (7) is retracted into the caliper groove (61), the extrusion member (60) is located between the limiting member (300) and the blocking member (91), the extrusion member (60) is arranged in an arc shape and is located outside the extension rod (92), and both ends of the extrusion member (60) are provided with an arc-shaped transition section (601), one of the transition sections (601) corresponds to the inlet end, and the other transition section (601) corresponds to the outlet end.

7. The sofa frame mechanism with cable drive and backrest reclining function according to claim 6, characterized in that: A threading ring (512) is provided on the top of each movable part (51), and the transmission cable (5) is a whole cable. The transmission cable (5) is passed through each threading ring (512) and is bound thereto.

8. The sofa frame mechanism with cable drive and backrest reclining function according to claim 7, characterized in that: The cushion frame (1) is further provided with a gear hole (90) arranged along the swing trajectory of the shaft body (30), the shaft body (30) is inserted into the gear hole (90), and a limit switch (100) for limiting the swing angle of the shaft body (30) is provided on the gear hole (90).

9. The sofa frame mechanism with cable drive and backrest reclining function according to claim 1, characterized in that: It also includes a movable member guide rail (402) arranged along the circumferential direction on the outside of the sprocket (6) for limiting the tilting of the movable member (51), wherein one end of the movable member guide rail (402) is connected to the inlet end, and the other end is connected to the outlet end.

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