Foldable sofa transport support

Abstract

The utility model discloses a kind of foldable sofa transport support, including frame, roller body mechanism, position fixing mechanism and fixed auxiliary mechanism, the roller body mechanism includes roller stand and clamping rod, the position fixing mechanism includes carousel and embedded block, the fixed auxiliary mechanism includes threaded tube and spring top pin, roller body mechanism includes roller stand, clamping rod and the adjusting hole cooperation with frame, it can be fixed in different positions by clamping rod through adjusting hole to roller stand, to facilitate the position of support flexible adjustment according to the size of sofa or transport demand, position fixing mechanism is composed of carousel, embedded block and the like component, carousel is designed by limiting rotation and guide slot, so that embedded block can accurately embed or away from clamping rod, realize the adjustment of multiple gears, so that support can be firmly fixed on different positions, and it is convenient to adjust, ensure that sofa remains stable during transport, avoid the unsafe problem caused by improper position.

Description

Technical Field

[0001] This utility model relates to the field of transportation technology, and more specifically, to a foldable sofa transport support. Background Technology

[0002] While existing foldable sofa transport brackets have achieved some degree of portability and temporary support for sofas, they still have many shortcomings and urgently need further optimization. One prominent issue is the inconvenience of loading sofas onto vehicles. Due to the relatively fixed design of existing bracket structures and the lack of flexible adjustment or guiding mechanisms, operators often need to align and adjust the position repeatedly when placing the sofa on the bracket. This is not only time-consuming and labor-intensive, but also prone to operational errors in practical applications, affecting transport efficiency.

[0003] Furthermore, existing transport racks rely on a limited range of fixing methods, typically using bolts and pins for mechanical locking. This lack of scalability and multi-level positioning makes it difficult to precisely adjust the height and angle of the racks under different transport needs or scenarios, impacting the stability of the sofa and the overall safety of transport. Additionally, the inconvenience of rack adjustment during loading, unloading, or storage can lead to structural jamming and cumbersome operations, reducing the equipment's applicability and user experience. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] In view of the problems existing in the prior art, this utility model provides a foldable sofa transport bracket to solve the technical problems mentioned in the background art, such as the inconvenience of loading sofas onto vehicles and the difficulty in adjusting the fixed position of the support frame.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution: a foldable sofa transport bracket, comprising a frame, a roller mechanism, a position fixing mechanism, and a fixing auxiliary mechanism. The roller mechanism includes a roller frame and a locking rod. A mounting plate is symmetrically installed at the bottom end of the roller frame, and the roller frame is symmetrically installed at the top end of the frame. Multiple sets of adjustment holes are provided on the frame. A locking tube is installed on the mounting plate. The locking rod can pass through different adjustment holes and the frame to engage with the locking tube. The position fixing mechanism includes a turntable and an embedding block. The turntable is rotatably mounted on the outer wall of the locking tube, and an embedding block is rotatably mounted on the inner side wall of the locking tube. A bottom guide groove is provided on the turntable, and the bottom end of the embedding block is rotatably guided by the bottom guide groove. The rotation of the turntable causes the embedding block to engage with or move away from the locking rod. A driving plate is installed on the outer wall of the turntable, and a support ring is installed at the bottom end of the driving plate.

[0008] The present invention is further configured such that the fixing auxiliary mechanism includes a threaded tube and spring-loaded pins. The threaded tube is threadedly connected to the outer wall of the clamping tube. A directional ring is slidably installed on the outer wall of the clamping tube, and a thrust bearing is installed between the directional ring and the threaded tube. Multiple sets of spring-loaded pins are slidably installed on the directional ring in an annular shape. The spring-loaded pins can push against the support ring step by step, so that the support ring and the driving plate can stably drive the turntable to rotate.

[0009] The present invention is further configured such that side frames are installed on both sides of the frame, and limiting rods are detachably installed on the side frames. The combination of the side frames and the limiting rods is used to laterally limit the sofa or items, prevent them from tilting and slipping, and ensure transportation safety.

[0010] The present invention is further configured such that connecting frames and tie rod frames are installed on the front and rear ends of the frame, and roller shafts are installed on the roller frame. The design of the connecting frames and tie rod frames provides a stable support for the connection of multiple components, while improving foldability and overall structural strength.

[0011] The present invention is further provided that a connecting plate is installed at the bottom end of the side wall of the clamping tube, and the connecting plate is fixedly installed on the mounting plate. The setting of the connecting plate facilitates the stable installation of the clamping tube.

[0012] The present invention is further configured such that a spring top groove is provided at the bottom end of the support ring, and the support spring can extend into different spring top grooves in stages, or the support spring can be fixedly extended into the spring top groove. The step-by-step cooperation between the spring top pin and the spring top groove provides multi-level limiting and buffering functions, which can effectively prevent the structure from loosening due to vibration or transportation impact and enhance the stability of the device.

[0013] The present invention is further configured such that a top guide groove is provided in the side wall of the card tube, and guide blocks are installed at the top and bottom ends of the embedded block, and the guide blocks are rotated and guided in cooperation with the top guide groove and the bottom guide groove.

[0014] The present invention is further configured such that limiting plates are symmetrically installed on both sides of the front and rear ends of the frame, and bottom wheels are installed around the bottom of the frame. The symmetrical arrangement of the limiting plates enhances the anti-slip function in the front and rear directions and effectively fixes the sofa being transported.

[0015] (III) Beneficial Effects

[0016] Compared with the prior art, the present invention provides a foldable sofa transport bracket, which has the following advantages:

[0017] This utility model features a roller mechanism, which includes a roller frame, a locking rod, and an adjustment hole that cooperates with the frame. The roller frame can be fixed in different positions by passing the locking rod through the adjustment hole, making it easy to flexibly adjust the position of the bracket according to the size of the sofa or transportation needs, thus improving the convenience of loading and handling. Through the cooperation of the locking rod and the locking tube, the roller frame can be stably installed on the top of the frame and provide support, ensuring the stability of the sofa during transportation and preventing the sofa from tilting or slipping due to loose brackets.

[0018] This invention features a position-fixing mechanism comprised of a turntable, an insert block, and other components. The turntable, through its limited rotation and guide groove design, allows the insert block to precisely engage or disengage from the locking rod, enabling multi-position adjustment. This ensures the support frame is firmly fixed in different positions and is easily adjustable, guaranteeing the sofa's stability during transport and preventing safety issues caused by improper positioning. The rotation of the turntable allows the insert block to gradually engage or disengage from the locking rod, thus precisely controlling the support frame's position. This design effectively prevents the support frame from loosening due to vibration or impact during transport, enhancing the device's reliability.

[0019] This invention incorporates a fixing auxiliary mechanism, which includes components such as a threaded tube, a spring-loaded pin, a directional ring, and a thrust bearing. The connection between the threaded tube and the clamping tube allows for more stable adjustment of the support frame. Through the progressively pushing action of the spring-loaded pin and spring-loaded spring, the support ring stably drives the turntable to rotate, ensuring that the support frame does not loosen during adjustment. The progressive adjustment function provided by the spring-loaded spring ensures that each adjustment setting is stably locked, preventing the sofa from loosening due to vibration or impact. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the device in the unused state of this utility model;

[0021] Figure 2 This is a schematic diagram of the roller frame installation method in this utility model;

[0022] Figure 3 This is a schematic diagram of the position fixing mechanism in this utility model;

[0023] Figure 4 This is a schematic diagram of the position fixing mechanism and the fixing auxiliary mechanism in this utility model;

[0024] Figure 5 This is a schematic diagram of the internal structure of the position fixing mechanism and the fixing auxiliary mechanism in this utility model.

[0025] In the diagram: 1. Frame; 2. Roller frame; 3. Clip rod; 4. Mounting plate; 5. Adjustment hole; 6. Turntable; 7. Embedded block; 8. Bottom guide groove; 9. Drive plate; 10. Support ring; 11. Threaded pipe; 12. Spring pin; 13. Orienting ring; 14. Thrust bearing; 15. Side frame; 16. Limiting rod; 17. Connecting frame; 18. Tie rod frame; 19. Roller shaft; 20. Connecting plate; 21. Spring groove; 22. Top guide groove; 23. Guide block; 24. Limiting plate; 25. Bottom wheel; 101. Clip pipe. Detailed Implementation

[0026] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0027] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0028] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0029] Please see Figures 1-5 A foldable sofa transport bracket includes a frame 1, a roller mechanism, a position fixing mechanism, and a fixing auxiliary mechanism. The roller mechanism includes a roller frame 2 and a locking rod 3. The bottom end of the roller frame 2 is symmetrically equipped with a mounting plate 4, and the roller frame 2 is symmetrically installed at the top end of the frame 1. The frame 1 has adjustment holes 5, and multiple sets of adjustment holes 5 are provided. The locking tube 101 is installed on the mounting plate 4. The locking rod 3 can pass through different adjustment holes 5 and the frame 1 to engage with the locking tube 101. The position fixing mechanism includes a turntable 6 and an embedding block 7. The turntable 6 is rotatably mounted on the outer wall of the locking tube 101. The side wall of the locking tube 101 is rotatably mounted with the embedding block 7. The turntable 6 has a bottom guide groove 8. The bottom end of the embedding block 7 is rotatably guided in conjunction with the bottom guide groove 8. The rotation of the turntable 6 causes the embedding block 7 to be embedded in or away from the locking rod 3. The outer wall of the turntable 6 is equipped with a driving plate 9, and the bottom end of the driving plate 9 is equipped with a support ring 10.

[0030] In this embodiment, the roller mechanism is mainly responsible for the position adjustment and basic support functions of the roller frame 2. During operation, the roller frame 2 is symmetrically installed on the top of the frame 1, and a retaining tube 101 is fixed on the mounting plate 4 at the bottom. By passing the retaining rod 3 through the adjustment holes 5 at different positions on the frame 1 and then engaging with the retaining tube 101, multi-level adjustment of the position of the roller frame 2 can be achieved, allowing the roller frame 2 to adapt to sofas of different sizes, thus enhancing the adaptability and practicality of the equipment. The roller shaft 19 installed on the roller frame 2 facilitates the loading and movement of the sofa, reducing the manual burden during the handling process. The position fixing mechanism is... The locking function of the locking rod 3 and the locking tube 101 is as follows: During operation, the turntable 6 installed on the outer wall of the locking tube 101 is rotated. The bottom guide groove 8 on the turntable 6 cooperates with the bottom of the embedded block 7 to form a rotation guide. As the turntable 6 rotates, the embedded block 7 in the side wall of the locking tube 101 will rotate accordingly, thereby embedding into or moving away from the slot on the locking rod 3. When the embedded block 7 is fully embedded in the slot of the locking rod 3, the locking rod 3 and the locking tube 101 form a firm mechanical lock, ensuring the stability after position adjustment. The drive plate 9 on the outer wall of the turntable 6 and the support ring 10 at the bottom facilitate the operator to apply force to rotate.

[0031] The fixed auxiliary mechanism includes a threaded tube 11 and spring-loaded pins 12. The threaded tube 11 is threadedly connected to the outer wall of the clamping tube 101. A directional ring 13 is slidably installed on the outer wall of the clamping tube 101, and a thrust bearing 14 is installed between the directional ring 13 and the threaded tube 11. Multiple sets of spring-loaded pins 12 are slidably installed on the directional ring 13 in annular shape. The spring-loaded pins can push against the support ring 10 step by step, so that the support ring 10 and the driving plate 9 can stably drive the turntable 6 to rotate.

[0032] In this embodiment, the fixing auxiliary mechanism further enhances the reliability of locking. In the initial state, the multiple sets of spring-loaded pins 12 on the directional ring 13 are in a relaxed state. By rotating the threaded tube 11 on the outer wall of the retaining pipe 101, the thrust bearing 14 pushes the directional ring 13 to move, so that the spring-loaded pins 12 push against the spring-loaded groove 21 of the support ring 10 step by step. When the spring-loaded pins 12 are fully inserted into the spring-loaded groove 21, the support ring 10 and the driving plate 9 are stably fixed, preventing the turntable 6 from rotating accidentally, thereby ensuring that the embedded block 7 always stays in the locked position, which greatly improves the safety during the transportation of the sofa.

[0033] Please see Figures 1-5As a supplementary embodiment of a foldable sofa transport bracket for the roller body mechanism, position fixing mechanism and fixing auxiliary mechanism: Side frames 15 are installed on both sides of the frame 1, and limiting rods 16 are detachably installed on the side frames 15. Connecting frames 17 and pull rod frames 18 are installed on the front and rear ends of the frame 1. Roller shafts 19 are installed on the roller frame 2. Connecting plates 20 are installed at the bottom end of the side wall of the clamping tube 101, and the connecting plates 20 are fixedly installed on the mounting plate 4. The bottom end of the support ring 10 has a spring top groove 21. The support spring can extend into different spring top grooves 21 in stages, or the support spring can be fixedly extended into the spring top groove 21. The side wall of the clamping tube 101 has a top guide groove 22. The top end and bottom end of the embedded block 7 are equipped with guide blocks 23, and the guide blocks 23 are rotated and guided in cooperation with the top guide groove 22 and the bottom guide groove 8. Limiting plates 24 are symmetrically installed on both sides of the front and rear ends of the frame 1. Bottom wheels 25 are installed around the bottom end of the frame 1.

[0034] More specifically, firstly, adjust the position of the locking rod 3 on the frame 1 according to the sofa size, pass the locking rod 3 through the appropriate adjustment hole 5 and engage with the locking tube 101. Then, rotate the turntable 6 to make the insert block 7 embed into the locking groove of the locking rod 3, achieving initial locking. Next, rotate the threaded tube 11 to push the directional ring 13, so that the spring pin 12 extends into the spring groove 21 of the support ring 10, further fixing the position of the turntable 6. Finally, use the bottom wheels 25 at the bottom of the frame 1 to move the entire bracket, and use the roller shaft 19 on the roller frame 2 to assist in loading the sofa. When it is necessary to adjust the fixed position of the roller frame 2, simply reverse the operation of the fixing auxiliary mechanism and the position fixing mechanism to quickly disassemble and adjust the position of the roller frame 2. The limiting rods 16 on both sides of the frame 1, the limiting plates 24 at the front and rear ends, and the connecting frame 17 and the pull rod frame 18 together provide additional structural support and limiting functions to ensure that the sofa will not shift during transportation.

[0035] In summary, during the use or operation of the overall equipment: when the roller mechanism is required to operate, the roller mechanism is mainly responsible for the position adjustment and basic support functions of the roller frame 2. During operation, the roller frame 2 is symmetrically installed on the top of the frame 1, and the mounting plate 4 at the bottom is fixed with the clamping tube 101. By passing the clamping rod 3 through the adjustment holes 5 at different positions on the frame 1 and then engaging with the clamping tube 101, multi-level adjustment of the position of the roller frame 2 can be achieved, allowing the roller frame 2 to adapt to sofas of different sizes, thus enhancing the adaptability and practicality of the equipment. The roller shaft 19 installed on the roller frame 2 facilitates the loading and movement of sofas, reducing the manpower burden during the handling process.

[0036] When the position fixing mechanism is in operation, it locks the locking rod 3 to the locking tube 101. During operation, the turntable 6 installed on the outer wall of the locking tube 101 is rotated. The bottom guide groove 8 on the turntable 6 cooperates with the bottom of the embedded block 7 to form a rotation guide. As the turntable 6 rotates, the embedded block 7 in the side wall of the locking tube 101 will rotate accordingly, thereby embedding into or moving away from the slot on the locking rod 3. When the embedded block 7 is fully embedded in the slot of the locking rod 3, the locking rod 3 and the locking tube 101 form a firm mechanical lock, ensuring the stability after position adjustment. The drive plate 9 on the outer wall of the turntable 6 and the support ring 10 at the bottom facilitate the operator to apply force to rotate.

[0037] When the auxiliary mechanism is required to operate, it further enhances the reliability of locking. In the initial state, the multiple sets of spring-loaded pins 12 on the directional ring 13 are in a relaxed state. By rotating the threaded tube 11 on the outer wall of the retaining pipe 101, the thrust bearing 14 pushes the directional ring 13 to move, so that the spring-loaded pins 12 push against the spring-loaded groove 21 of the support ring 10 step by step. When the spring-loaded pins 12 are fully inserted into the spring-loaded groove 21, the support ring 10 and the driving plate 9 are stably fixed, preventing the turntable 6 from rotating accidentally, thereby ensuring that the embedded block 7 always remains in the locked position, which greatly improves the safety during the transportation of the sofa.

[0038] First, adjust the position of the locking rod 3 on the frame 1 according to the size of the sofa. Pass the locking rod 3 through the appropriate adjustment hole 5 and engage it with the locking tube 101. Then, rotate the turntable 6 to make the insert block 7 engage in the slot of the locking rod 3, achieving initial locking. Next, rotate the threaded tube 11 to push the directional ring 13, so that the spring pin 12 extends into the spring groove 21 of the support ring 10, further fixing the position of the turntable 6. Finally, use the bottom wheels 25 at the bottom of the frame 1 to move the entire bracket. The roller shaft 19 on the roller frame 2 assists in loading the sofa. When it is necessary to adjust the fixed position of the roller frame 2, simply reverse the operation of the fixing auxiliary mechanism and the position fixing mechanism to quickly disassemble and adjust the position of the roller frame 2. The limiting rods 16 on both sides of the frame 1, the limiting plates 24 at the front and rear ends, and the connecting frame 17 and the pull rod frame 18 together provide additional structural support and limiting functions to ensure that the sofa will not shift during transportation.

[0039] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

[0040] In all the solutions mentioned above, those involving the operation of electrical components, unless otherwise explicitly described, are controlled by a controller. Since the devices matched with the controllers are common devices, their control principles and circuit connections are existing, well-known, and mature technologies, and their specific circuit structures will not be elaborated here. In all the solutions mentioned above, those involving motors can be used with a reducer if necessary. The connection structure and working principle between the motor and the reducer are existing, well-known technologies, and will not be elaborated here.

Claims

1. A foldable sofa transport support, comprising a frame (1), a roller mechanism, a position fixing mechanism, and a fixing auxiliary mechanism, characterized in that: The roller mechanism includes a roller frame (2) and a locking rod (3). The bottom end of the roller frame (2) is symmetrically equipped with a mounting plate (4), and the roller frame (2) is symmetrically installed on the top end of the frame (1). The frame (1) has adjustment holes (5), and multiple sets of adjustment holes (5) are provided. The locking tube (101) is installed on the mounting plate (4). The locking rod (3) can pass through different adjustment holes (5) and the frame (1) to engage with the locking tube (101). The position fixing mechanism includes a turntable (6) and an embedded block. (7) The turntable (6) is installed on the outer wall of the clamping pipe (101) for limiting rotation. An embedded block (7) is installed on the inner side wall of the clamping pipe (101) for limiting rotation. A bottom guide groove (8) is provided on the turntable (6). The bottom end of the embedded block (7) is coordinated with the bottom guide groove (8) for rotational guidance. The rotation of the turntable (6) causes the embedded block (7) to be embedded in or away from the clamping rod (3). A driving plate (9) is installed on the outer wall of the turntable (6). A support ring (10) is installed at the bottom end of the driving plate (9).

2. The foldable sofa transport bracket according to claim 1, characterized in that: The fixed auxiliary mechanism includes a threaded tube (11) and spring pins (12). The threaded tube (11) is threadedly connected to the outer wall of the clamping tube (101). A directional ring (13) is slidably installed on the outer wall of the clamping tube (101), and a thrust bearing (14) is installed between the directional ring (13) and the threaded tube (11). Multiple sets of spring pins (12) are slidably installed on the directional ring (13). The spring springs can push against the support ring (10) step by step, so that the support ring (10) and the driving plate (9) can stably drive the turntable (6) to rotate.

3. The foldable sofa transport bracket according to claim 1, characterized in that: Side frames (15) are installed on both sides of the frame (1), and a limiting rod (16) is detachably installed on the side frame (15).

4. The foldable sofa transport bracket according to claim 1, characterized in that: The frame (1) is equipped with a connecting frame (17) and a tie rod frame (18) on both the front and rear ends, and a roller shaft (19) is installed on the roller frame (2).

5. A foldable sofa transport bracket according to claim 1, characterized in that: A connecting plate (20) is installed at the bottom of the side wall of the card tube (101), and the connecting plate (20) is fixedly installed on the mounting plate (4).

6. A foldable sofa transport bracket according to claim 1, characterized in that: The bottom end of the support ring (10) is provided with a spring top groove (21), and the support spring can be extended into different spring top grooves (21) in stages, or the support spring can be fixedly extended into the spring top groove (21).

7. A foldable sofa transport bracket according to claim 1, characterized in that: The side wall of the card tube (101) is provided with a top guide groove (22), and the top and bottom ends of the embedded block (7) are provided with guide blocks (23), and the guide blocks (23) are rotated and guided in cooperation with the top guide groove (22) and the bottom guide groove (8).

8. A foldable sofa transport bracket according to claim 1, characterized in that: The frame (1) is symmetrically equipped with limiting plates (24) on both sides of the front and rear ends, and bottom wheels (25) are installed around the bottom of the frame (1).

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