Forward moving type supporting module and sofa

Abstract

The forward-moving type supporting module is independent of the sofa and comprises a base and a supporting assembly, the supporting assembly comprises a sliding assembly and a supporting rod, and the sliding assembly comprises a driving sliding piece and a driven sliding piece which are connected to the base in a sliding mode in the front-back direction; the sliding assembly on the base is in linkage connection with the supporting rod in a front-back rotating mode, so that when the sliding assembly slides forwards, the supporting rod is driven to be opened in place in a forward state; when the sofa is mounted on the sofa, the front support rod can be supported on the ground when the sofa is switched from a sitting posture to a TV posture, so that the stability of the sofa is improved.

Description

Technical Field

[0001] This utility model relates to the field of furniture, and in particular to a forward-moving support module and a sofa. Background Technology

[0002] Compared to traditional sofas with single functions, multifunctional sofas have become increasingly popular in recent years. Multifunctional sofas include a seat assembly, a backrest assembly, and a leg support assembly. Below the seat assembly is a mechanical extension assembly that enables the sofa to switch between different states. The mechanical extension assembly has a complex multi-link structure. When the mechanical extension assembly is in motion, the seat assembly, backrest assembly, and leg support assembly switch to different postures under the action of the entire mechanical extension assembly to meet the user's needs.

[0003] When the mechanical extension component is in motion, the sofa can switch between sitting, TV, and reclining positions. For example, in the initial state, the mechanical extension component is in the initial state, and the sofa is in a sitting position. When the mechanical extension component extends, it triggers the leg support component to rotate forward, thus transitioning the multi-functional sofa from a sitting position to a TV position. When the mechanical extension component continues to extend, it triggers the back support component to tilt backward, thus transitioning the multi-functional sofa from a TV position to a reclining position. However, during the process of the multi-functional sofa changing from a sitting position to a TV position, the forward rotation of the leg support component causes the sofa's center of gravity to shift forward, which can easily lead to forward tilting, affecting the safety of the sofa and the user's experience.

[0004] For example, the functional sofa extension device with an anti-tilting mechanism disclosed in CN218889475 includes a support mechanism, which includes a slider, a support sleeve, and a support rod. The movement of the leg support component drives the support rod to rotate and move closer to the ground. During the sofa opening process, the support rod is close to the ground. When the sofa tilts forward, it drives the support rod to support the ground. However, this support mechanism is fixed on the seat frame iron frame and is only applicable to specific mechanical extension components, with low versatility.

[0005] In the applicant's previous patent for an anti-tipping sofa (publication number CN117582085), a movable support component independent of the mechanical extension assembly was installed on the sofa armrest. The movable support component includes a mounting base, a movable part that moves along the mounting base, and a support leg that is linked with the movable part. A gear is rotatably connected to the mounting base, and the gear and the upper part of the support leg are relatively fixed in the circumferential direction. One end of the movable part is provided with a rack that meshes with the gear transmission. When triggered, the movable part moves along the mounting base and drives the gear to rotate, causing the support leg to open in the direction of supporting the ground. The movable support component is modularly designed, which allows it to be adapted to most multifunctional sofas without being affected by the structure of the mechanical extension assembly, thus improving the versatility of the movable support component.

[0006] However, the support legs open by rotating, and the support position of the rotating support legs is affected by the rotation radius, resulting in the support legs not contacting the ground forward enough after rotating, which affects the stability of the sofa; therefore, a support module with high versatility and a more forward support position needs to be developed. Summary of the Invention

[0007] This utility model provides a forward-moving support module and a sofa. The forward-moving support module is independent of the sofa. By making the sliding component on the base and the support rod form a linkage connection for front-to-back rotation, when the sliding component slides forward, it drives the support rod to open and be in place in a more forward position. When it is installed on the sofa, the forward support rod can be supported on the ground when the sofa is switched from a sitting position to a TV position, thus improving the stability of the sofa.

[0008] The technical solution of this utility model is implemented as follows:

[0009] A forward-moving support module includes a base and a support assembly. The support assembly includes a sliding assembly and a support rod. The sliding assembly includes an active sliding member and a driven sliding member that are slidably connected to the base in a front-back direction. The support rod is rotatably linked between the active sliding member and the driven sliding member. When relative displacement occurs between the active sliding member and the driven sliding member, the support rod can rotate back and forth in linkage.

[0010] The support rod can be switched sequentially from the initial state to the forward state and the open state. Under the action of external force, the sliding component slides forward and drives the support rod to move forward into place. At this time, the driven sliding component stops at the predetermined position and the support rod is in the forward state. Then, the active sliding component slides forward relative to the driven sliding component and rotates the support rod forward in conjunction with it, so that the support rod switches from the forward state to the open state.

[0011] Preferably, a sliding connection structure is provided between the driven sliding member and the support rod. The sliding connection structure includes a connector connected to the driven sliding member, and a groove extending along its own length is provided on the support rod. The connector and the groove form a sliding connection, and the connector has sliding resistance when sliding in the groove.

[0012] When the support rod moves forward, it remains relatively fixed to the connecting piece, causing the sliding assembly to slide forward while simultaneously moving the support rod forward. When the driven sliding piece slides to the predetermined position, the active sliding piece slides forward relative to the driven sliding piece, forcing the support rod in the forward-moving state to overcome the sliding resistance and rotate forward, switching to the open state. The sliding resistance generated by the connecting piece and the slide groove prevents the active sliding piece from moving relative to the driven sliding piece when the support rod has not moved forward to its final position, allowing the entire sliding assembly to slide forward and move the support rod forward. When the driven sliding piece stops sliding forward, the active sliding piece moves forward relative to the driven sliding piece, at which point the sliding resistance is overcome, allowing the support rod to rotate smoothly and open.

[0013] Preferably, the active sliding component is rotatably or slidably connected to the support rod.

[0014] Preferably, the active sliding component and the support rod are slidably connected; one of the active sliding component and the support rod is provided with a guide pin, and the other of the active sliding component and the support rod is provided with a first guide groove. The first guide groove extends vertically, and the guide pin is slidably connected in the first guide groove; this establishes a linkage between the support rod and the active sliding component, and at the same time, the vertical first guide groove also adapts to the position change in the vertical direction when the support rod rotates, so that the support rod can smoothly rotate forward and open.

[0015] Preferably, the driven sliding member is provided with a second guide groove extending in the front-rear direction, and the guide pin is slidably connected in the second guide groove; the guide pin, the first guide groove, and the second guide groove constitute a guiding structure, and the guide pin slides in the first guide groove and the second guide groove to guide the support rod to rotate forward and open; making the support rod rotate and open more smoothly.

[0016] Preferably, the front end of the second guide groove extends obliquely downward to form a locking groove. When the support rod rotates forward and opens to the position, the guide pin slides into the locking groove; this prevents the support rod from rotating in the opposite direction after it is opened, thus ensuring the stability of the sofa.

[0017] Preferably, the connector is rotatably connected to the driven sliding member, and the connector is provided with a mating part that matches the width of the slide groove. The mating part has a non-circular cross-sectional shape and is slidably connected in the slide groove, so that the support rod can rotate forward relative to the driven sliding member.

[0018] Preferably, a rotating support shaft is provided between the connecting member and the driven sliding member. The rotating support shaft extends out of the slide groove and forms an extension section. An adjusting nut is threaded onto the extension section. Rotating the adjusting nut causes the connecting member to contact and rub against the support rod, so that the connecting member has sliding resistance when sliding in the slide groove. The threaded adjusting nut can force the connecting member to contact the support rod and generate sliding friction. At the same time, the threaded connection also makes it easy to adjust the magnitude of the sliding friction.

[0019] Preferably, the connector has a mating part that matches the width of the slide groove, and the mating part has a circular cross-sectional shape. The mating part is slidably connected in the slide groove, so that the support rod can rotate forward relative to the driven sliding member.

[0020] Preferably, the mating part and the slide groove are slidably connected to form an interference fit, so that the connecting part has sliding resistance when sliding in the slide groove; after the interference fit, the mating part and the inner wall of the slide groove form a large friction force, forming a sliding resistance, so that the active sliding part and the driven sliding part can move back and forth simultaneously when moving forward.

[0021] Preferably, the outer side of the active sliding component is provided with an outwardly protruding pushing part for responding to external forces, so as to facilitate linkage with the leg support assembly of the sofa.

[0022] Preferably, a limiting structure is provided between the base and the driven sliding member, which can prevent the driven sliding member, which has slid forward to a predetermined position, from continuing to slide forward.

[0023] Preferably, the limiting structure includes a limiting surface disposed on the base, and a limiting block disposed on the driven sliding member facing the limiting surface. When the sliding assembly drives the support rod to move forward, the limiting block approaches the limiting surface; when the support rod moves forward to its position, the limiting block abuts against the limiting surface.

[0024] Preferably, the active sliding component and the driven sliding component are arranged side by side and slidably connected to the base; the structure of the forward-moving support module is optimized to save the space occupied by the sliding components on the base.

[0025] A sofa including the aforementioned forward-moving support module.

[0026] The beneficial effects of this utility model, which adopts the above technical solution, are as follows:

[0027] This invention establishes a linkage between the sliding component on the base and the support rod, allowing them to rotate back and forth. When the active sliding component slides forward, it drives the support rod to switch sequentially to a forward-moving state and an open state, allowing the support rod to open and be positioned further forward. When installed on a sofa and linked with the sofa's leg support assembly, the support rod in contact with the ground is positioned further forward when the sofa switches from a sitting position to a TV position, adapting to changes in the sofa's center of gravity and improving its stability.

[0028] To enable the support rod to switch sequentially between the forward-moving state and the open state, a sliding connection structure is set between the driven sliding member and the support rod. This allows the support rod to slide relative to the driven sliding member with resistance. The presence of this resistance prevents relative sliding between the active and driven sliding members when the support rod moves forward. When the support rod moves forward to its position and the driven sliding member stops sliding forward, this sliding resistance can be overcome while the active sliding member continues to move forward, thereby causing the forward-moving support rod to rotate forward in conjunction with the support rod. The structure is simple and the design is ingenious.

[0029] In the sliding connection structure, the adjusting nut is threadedly connected to the through section of the rotating support shaft. This ensures that sliding resistance is generated between the driven sliding part and the support rod, while allowing the user to adjust the sliding friction by turning the adjusting nut as needed. This avoids the phenomenon that the support rod is difficult to rotate and open due to excessive sliding friction, or that the support rod opens prematurely due to insufficient friction, thus ensuring that the forward-moving support module can work normally.

[0030] The active and passive sliding components are arranged side by side, which saves the space occupied by the sliding components on the base to the greatest extent, optimizes the structural layout, and makes the entire forward-moving support module more compact and simplified, reducing the volume and cost of the forward-moving support module. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the forward-moving support module in its initial state.

[0032] Figure 2 An exploded view of the forward-mounted support module;

[0033] Figure 3 This is a schematic diagram of the forward-moving support module structure in its initial state from another angle;

[0034] Figure 4 A schematic diagram of the forward-moving support module in its open state;

[0035] Figure 5 This is a schematic diagram of the forward-moving support module structure in the open state from another angle;

[0036] Figure 6 A cross-sectional view showing the location of the sliding connection structure;

[0037] Figure 7 A cross-sectional view showing the location of the guide pin;

[0038] Figure 8 A schematic diagram showing the installation of the forward-moving support module inside the sofa armrest;

[0039] Figure 9 This is a diagram illustrating how the support rod of a sofa rotates forward to open when the leg support assembly is in use.

[0040] Figure 10 This is a schematic diagram of the sliding connection structure in Example 2;

[0041] The reference numerals in the attached drawings are as follows: 1-base, 2-driven sliding member, 3-active sliding member, 4-support rod, 5-rotation support shaft, 6-guide pin, 7-linkage member, 8-handrail, 9-leg support assembly, 10-mechanical extension assembly, 11-guide member, 12-guide channel, 13-avoidance groove, 14-limiting surface, 21-second guide groove, 22-locking groove, 23-extension, 24-limiting member, 31-first guide groove, 32-pushing part, 41-slide groove, 42-protective sleeve, 51-connector, 511-fitting part, 52-washer, 53-elastic pad, 54-adjusting nut, 61-spacer, 62-washer, 63-connecting nut, 71-linkage groove. Detailed Implementation

[0042] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0043] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0044] This utility model has multiple embodiments, and the specific implementation methods are as follows:

[0045] Example 1: As Figure 1-9 As shown, this embodiment provides a forward-moving support module, including a base 1 and a support assembly. The support assembly includes a sliding assembly and a support rod 4. A protective sleeve 42 is connected to the bottom end of the support rod 4. The sliding assembly includes an active sliding member 3 and a driven sliding member 2 that are slidably connected to the base 1 in the front-back direction. Specifically, in this embodiment, the base 1, the active sliding member 3, and the driven sliding member 2 are all metal plate structures. Two rows of guide members 11 are installed on the base 1, and the guide members 11 are screws locked onto the base 1. The multiple guide members 11 in each row are spaced apart from each other, and a guide channel 12 is formed between the upper and lower rows of guide members 11. The active sliding member 3 and the driven sliding member 2 are slidably connected in the guide channel 12. The support rod 4 is rotatably linked between the active sliding member 3 and the driven sliding member 2. When a relative displacement occurs between the active sliding member 3 and the driven sliding member 2, the support rod 4 can rotate back and forth in linkage.

[0046] The support rod 4 can be switched sequentially from the initial state to the forward-moving state and the open state. Under the action of external force, the sliding component slides forward and drives the support rod 4 to move forward into place. At this time, the driven sliding component 2 stops at the predetermined position and the support rod 4 is in the forward-moving state. Then, the active sliding component 3 slides forward relative to the driven sliding component 2 and rotates the support rod 4 forward, so that the support rod 4 switches from the forward-moving state to the open state.

[0047] Furthermore, to ensure that support rod 4 can smoothly switch sequentially from its initial state to its forward-moving state and then to its open state, such as... Figure 6 As shown, a sliding connection structure is provided between the driven sliding member 2 and the support rod 4. The sliding connection structure includes a connector 51 connected to the driven sliding member 2. The support rod 4 is provided with a groove 41 extending along its own length direction. The connector 51 and the groove 41 form a sliding connection, and the connector 51 has sliding resistance when sliding in the groove 41.

[0048] When the support rod 4 moves forward, it remains relatively fixed to the connecting member 51, causing the sliding assembly to slide forward while simultaneously moving the support rod 4 forward. When the driven sliding member 2 slides to the predetermined position, the active sliding member 3 slides forward relative to the driven sliding member 2, forcing the support rod 4, which is in a forward-moving state, to overcome the sliding resistance and rotate forward, switching to the open state. The sliding resistance generated by the connecting member 51 and the slide groove 41 prevents the active sliding member 3 from moving relative to the driven sliding member 2 when the support rod 4 has not moved forward to its final position, allowing the entire sliding assembly to slide forward and move the support rod 4 forward. When the driven sliding member 2 stops sliding forward, the active sliding member 3 moves forward relative to the driven sliding member 2. At this time, the sliding resistance is overcome, allowing the support rod 4 to rotate and open smoothly. The design is simple and ingenious, allowing the support rod 4 to rotate and open after moving forward and be supported on the ground. While the support rod 4 rotates forward, it will first slide along its own length and move away from the ground to prevent the support rod 4 from interfering with the ground. As the support rod 4 continues to rotate forward, it will slide along its own length again and gradually move closer to the ground until the support rod 4 is opened and supported on the ground.

[0049] Furthermore, when the support rod 4 switches from the open state to the initial state, the main sliding member 3 is subjected to a backward force, causing the forward moving component and the support rod 4 to slide backward. When the secondary sliding member 2 resets backward and stops at the initial position, the main sliding member 3 continues to slide backward and, in conjunction with the support rod 4, rotates backward to retract.

[0050] Furthermore, to enable the support rod 4 to be rotatably linked between the active sliding member 3 and the driven sliding member 2, the active sliding member 3 is rotatably or slidably connected to the support rod 4, provided that the driven sliding member 2 and the support rod 4 are slidably connected. In this embodiment, the active sliding member 3 and the support rod 4 are slidably connected. One of the active sliding member 3 and the support rod 4 is provided with a guide pin 6, and the other of the active sliding member 3 and the support rod 4 is provided with a first guide groove 31. In this embodiment, the first guide groove 31 is provided on the active sliding member 3. The first guide groove 31 extends vertically, and the guide pin 6 is slidably connected in the first guide groove 31. This establishes a linkage between the support rod 4 and the active sliding member 3, and at the same time, the vertical first guide groove 31 also adapts to the vertical position change of the support rod 4 when it rotates, allowing the support rod 4 to smoothly rotate forward and open.

[0051] Furthermore, to make the rotation and opening of the support rod 4 smoother, the driven sliding member 2 is provided with a second guide groove 21 extending in the front-to-back direction, and the guide pin 6 is slidably connected in the second guide groove 21; the base 1 is provided with a clearance groove 13 to avoid the movement trajectory of the guide pin 6; such as Figure 1-3 As shown, the guide pin 6, the first guide groove 31, and the second guide groove 21 constitute a guiding structure. The guide pin 6 slides in the first guide groove 31 and the second guide groove 21 to guide the support rod 4 to rotate forward and open. The second guide groove 21 extends in the front-back direction to adapt to the position change of the support rod 4 in the front-back direction. Together with the first guide groove 31, it forms a trajectory guide for the support rod 4, ensuring that the support rod 4 can rotate forward and open smoothly.

[0052] Furthermore, after the support rod 4 is opened to the full position, in order to prevent the support rod 4 from accidentally rotating backward and affecting the stability of the sofa, the front end of the second guide groove 21 extends obliquely downward to form a locking groove 22. When the support rod 4 rotates forward and opens to the full position, the guide pin 6 slides into the locking groove 22; this prevents the support rod 4 from rotating in the opposite direction after it is opened, thus ensuring the stability of the sofa.

[0053] Furthermore, such as Figure 7 As shown, the guide pin 6 has a limiting cap at its head facing the driven sliding member 2, and a connecting nut 63 at the other end facing the support rod 4. The support rod 4 has a washer 62 for increasing the contact area with the connecting nut 63. The limiting cap and the connecting nut 63 restrict the guide pin 6 between the driven sliding member 2 and the support rod 4, preventing the guide pin 6 from moving along its own length. At the same time, to ensure that the guide pin 6 does not generate much noise when sliding, a spacer 61 is provided between the first guide groove 31 and the second guide groove 21. The spacer 61 is usually made of rubber material. The guide pin 6 passes through the spacer 61.

[0054] Furthermore, the specific sliding connection structure between the connector 51 and the support rod 4 is as follows: the driven sliding member 2 is provided with an upwardly extending portion 23. In the initial state, the extension portion 23 abuts against the guide member 11 at the frontmost end of the upper row, so that the driven sliding member 2 stops in the initial position and does not move backward; the connector 51 is rotatably connected to the extension portion 23. The connector 51 is provided with a mating portion 511 that matches the width of the slide groove 41, and the cross-sectional shape of the mating portion 511 is non-circular. The mating portion 511 is slidably connected to the support rod 41. Within the groove 41, the support rod 4 can rotate forward relative to the driven sliding member 2. Specifically, after the non-circular cross-section mating part 511 mates with the groove 41, only the mating part 511 is allowed to slide within the groove 41. However, the connecting member 51 is simultaneously rotatably connected to the driven sliding member 2. Therefore, when the active sliding member 3 slides forward relative to the driven sliding member 4, the support rod 4 can rotate relative to the driven sliding member 2 while simultaneously sliding relative to the driven sliding member 2, thus preventing the support rod 4 from jamming when it rotates forward to open.

[0055] Furthermore, in order to enable the mating part 511 to slide with resistance within the slide groove 41, a rotating support shaft 5 is provided between the connecting part 51 and the driven sliding part 2. The rotating support shaft 5 extends out of the slide groove 41 and forms an extension section. An adjusting nut 54 is threaded onto the extension section. Rotating the adjusting nut 54 causes the connecting part 51 to contact and rub against the support rod 4, so that the connecting part 51 has sliding resistance when sliding within the slide groove 41. The threaded adjusting nut 54 can force the connecting part 51 to contact the support rod 4 and generate sliding friction. At the same time, the threaded connection also makes it easy for the user to adjust the magnitude of the sliding friction, so that the sliding resistance is within a reasonable range.

[0056] Furthermore, in order to increase the force between the adjusting nut 54 and the support rod 4 and prevent the adjusting nut 54 from loosening, two washers 52 and an elastic washer 53 are provided between the adjusting nut 54 and the support rod 4. The elastic washer 53 is located between the two washers 52, and the adjusting nut 54 acts on the outer washer 52.

[0057] Furthermore, in this embodiment, the sliding of the mating part 511 within the groove 41 with resistance can also be achieved in another way. This means that while the mating part 511 and the groove 41 are slidingly connected, an interference fit is formed, giving the connecting member 51 sliding resistance within the groove 41. Specifically, the connecting member 51 can be made of a wear-resistant material, and the width of the mating part 511 can be slightly larger than the width of the groove 41, forming a sliding interference fit. After the interference fit, the mating part 511 contacts the inner wall of the groove 41 more tightly, generating greater friction and thus creating sliding resistance. This allows the active sliding member 3 and the driven sliding member 2 to move forward and backward simultaneously during the forward movement.

[0058] Furthermore, to facilitate linkage with the leg support assembly 9 of the sofa, the outer side of the active sliding component 3 is provided with an outwardly protruding pushing part 32 for responding to external forces.

[0059] Furthermore, when the support rod 4 moves forward to the predetermined position, in order to keep the driven sliding member 2 in the corresponding position, a limiting structure is provided between the base 1 and the driven sliding member 2. The limiting structure can prevent the driven sliding member 2, which has slid forward to the predetermined position, from continuing to slide forward. Specifically, the limiting structure includes a limiting surface 14 provided on the base 1, and a limiting block 24 on the driven sliding member 2 facing the limiting surface 14. When the sliding assembly drives the support rod 4 to move forward, the limiting block 24 approaches the limiting surface 14. When the support rod 4 moves forward to the predetermined position, the limiting block 24 abuts against the limiting surface 14.

[0060] Furthermore, the active sliding member 3 and the driven sliding member 2 can be arranged vertically at intervals or vertically staggered. However, this would make the sliding component occupy too much space on the base 1. Therefore, in this embodiment, the active sliding member 3 and the driven sliding member 2 are arranged side by side and slidably connected to the base 1. The side-by-side arrangement can reduce the longitudinal space occupied by the sliding component on the base 1, optimize the structure of the forward-moving support module, and save the space occupied by the sliding component on the base 1.

[0061] Furthermore, a sofa, such as Figure 8-9 As shown, including the aforementioned forward-moving support module, specifically, the sofa in this embodiment includes two armrests 8 and a seat assembly disposed between the two armrests 8. The front end of the seat assembly has a leg support assembly 9 that can open forward or retract backward. The leg support assembly 9 includes a leg support plate. The lower end of the seat support is provided with a mechanical extension assembly 10. The mechanical extension assembly 10 is composed of multiple connecting rods hinged together, which is a conventional existing mechanism, and its specific structure will not be described in detail. In this embodiment, the forward-moving support module is disposed on the inner side of at least one armrest 8 of the sofa, and a linkage 7 that moves back and forth is selected on the mechanical extension assembly 10. The linkage 7 is provided with The linkage groove 71 and the pushing part 32 of the active sliding component 3 are located in the linkage groove 71. In the initial state, the leg support plate tends to be in a vertical retracted state. When the mechanical extension component 10 extends, the leg support component 9 opens forward, the leg support plate gradually becomes horizontal, and the center of gravity of the entire sofa moves forward. At this time, the linkage component 7, through the pushing part 32, links the active sliding component 3, so that the support rod 4 gradually switches to the forward-moving state and the open state. At this time, the support rod 4 opens in a more forward state and supports the ground, effectively preventing instability caused by the forward movement of the sofa's center of gravity. This allows the forward-moving support module to adapt to the change in the center of gravity of the sofa and improves the stability of the sofa.

[0062] Example 2: As Figure 10As shown, the difference between this embodiment and the above embodiment is that the connector 51 in this embodiment is provided with a mating part 511 that matches the width of the slide groove 41, and the mating part 511 has a circular cross-sectional shape. The mating part 511 is slidably connected in the slide groove 41. In this embodiment, the connector 51 can be fixed to the driven sliding member 2 or rotatably connected to the driven sliding member 2. The mating part 511 has a circular cross-section, so that the mating part 511 can slide in the slide groove 41 or rotate in the slide groove 41, so that the support rod 4 can rotate forward relative to the driven sliding member 2, avoiding the support rod 4 from getting stuck when it rotates forward to open, achieving the same effect as in the above embodiment.

[0063] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A forward-moving support module, characterized in that, It includes a base (1) and a support assembly. The support assembly includes a sliding assembly and a support rod (4). The sliding assembly includes an active sliding member (3) and a driven sliding member (2) that are slidably connected to the base (1) in the front-back direction. The support rod (4) is rotatably linked between the active sliding member (3) and the driven sliding member (2). When a relative displacement occurs between the active sliding member (3) and the driven sliding member (2), the support rod (4) can rotate back and forth. The support rod (4) can be switched from the initial state to the forward state and the open state in sequence. Under the action of external force, the sliding component slides forward and drives the support rod (4) to move forward into place. At this time, the driven sliding component (2) stops at the predetermined position and the support rod (4) is in the forward state. Then the active sliding component (3) slides forward relative to the driven sliding component (2) and drives the support rod (4) to rotate forward, so that the support rod (4) switches from the forward state to the open state.

2. The forward-moving support module according to claim 1, characterized in that: A sliding connection structure is provided between the driven sliding member (2) and the support rod (4). The sliding connection structure includes a connector (51) connected to the driven sliding member (2). The support rod (4) is provided with a groove (41) extending along its own length direction. The connector (51) and the groove (41) form a sliding connection, and the connector (51) has sliding resistance when sliding in the groove (41). When the support rod (4) moves forward, the support rod (4) and the connecting piece (51) remain relatively fixed, so that the sliding component slides forward while driving the support rod (4) to move forward; when the driven sliding piece (2) slides to the predetermined position, the active sliding piece (3) slides forward relative to the driven sliding piece (2), and forces the support rod (4) in the forward state to overcome the sliding resistance and rotate forward and switch to the open state.

3. The forward-moving support module according to claim 1, characterized in that: The active sliding component (3) is rotatably or slidably connected to the support rod (4).

4. A forward-moving support module according to claim 3, characterized in that: The active sliding member (3) and the support rod (4) are slidably connected; one of the active sliding member (3) and the support rod (4) is provided with a guide pin (6), and the other of the active sliding member (3) and the support rod (4) is provided with a first guide groove (31). The first guide groove (31) extends in the vertical direction, and the guide pin (6) is slidably connected in the first guide groove (31).

5. A forward-moving support module according to claim 4, characterized in that: The driven sliding member (2) is provided with a second guide groove (21) extending in the front-rear direction. The guide pin (6) is slidably connected in the second guide groove (21). The guide pin (6), the first guide groove (31), and the second guide groove (21) constitute a guiding structure. The guide pin (6) slides in the first guide groove (31) and the second guide groove (21) to guide the support rod (4) to rotate forward and open.

6. A forward-moving support module according to claim 5, characterized in that: The front end of the second guide groove (21) extends obliquely downward to form a locking groove (22). When the support rod (4) rotates forward and opens into place, the guide pin (6) slides into the locking groove (22).

7. A forward-moving support module according to claim 2, characterized in that: The connector (51) is rotatably connected to the driven sliding member (2), and the connector (51) is provided with a mating part (511) that matches the width of the slide groove (41). The mating part (511) has a non-circular cross-sectional shape and is slidably connected in the slide groove (41), so that the support rod (4) can rotate forward relative to the driven sliding member (2).

8. A forward-moving support module according to claim 7, characterized in that: A rotating support shaft (5) is provided between the connector (51) and the driven sliding member (2). The rotating support shaft (5) extends out of the slide groove (41) and forms an extension section. An adjusting nut (54) is threaded onto the extension section. Rotating the adjusting nut (54) causes the connector (51) to contact and rub against the support rod (4), so that the connector (51) has sliding resistance when sliding in the slide groove (41).

9. A forward-moving support module according to claim 2, characterized in that: The connector (51) is provided with a mating part (511) that matches the width of the slide groove (41), and the mating part (511) has a circular cross-sectional shape. The mating part (511) is slidably connected in the slide groove (41), so that the support rod (4) can rotate forward relative to the driven sliding member (2).

10. A forward-moving support module according to claim 7 or 9, characterized in that: The mating part (511) and the slide groove (41) are slidably connected to form an interference fit, so that the connecting part (51) has sliding resistance when sliding in the slide groove (41).

11. A forward-moving support module according to claim 1, characterized in that: The active sliding member (3) has an outwardly protruding pushing part (32) on its outer side surface for responding to external forces.

12. A forward-moving support module according to claim 1, characterized in that: A limiting structure is provided between the base (1) and the driven sliding member (2). The limiting structure can prevent the driven sliding member (2) from sliding forward to the predetermined position and continuing to slide forward.

13. A forward-moving support module according to claim 12, characterized in that: The limiting structure includes a limiting surface (14) set on the base (1), and a limiting block (24) facing the limiting surface (14) on the driven sliding member (2). When the sliding component drives the support rod (4) to move forward, the limiting block (24) approaches the limiting surface (14); when the support rod (4) moves forward to the position, the limiting block (24) abuts against the limiting surface (14).

14. A forward-moving support module according to claim 1, characterized in that: The active sliding member (3) and the driven sliding member (2) are arranged side by side and slidably connected to the base (1).

15. A sofa, characterized in that: Includes the forward-moving support module as described in claim 1.

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