Sofa convenient to move

Abstract

The utility model discloses a sofa convenient to move, which relates to the field of furniture sofas, and comprises a sofa body, a long table device arranged in the left-right direction is fixedly arranged at the center of the lower end face of the sofa body, the long table device comprises a long table, rotating supports are arranged on the front side and the rear side of the center of the long table, and the rotating supports are rotatably connected with driving gear shafts. An installation sliding groove is formed in the long table, installation supports arranged in a bilateral symmetry mode are fixedly connected to the front side and the rear side of the long table, supporting wheel devices are hinged to the installation supports, a main shaft device is rotationally connected between the installation supports which are symmetrical in the front-back direction, and the supporting wheel devices are fixedly connected with the main shaft device. A driving rack device is slidably connected into the mounting sliding groove, the driving rack device is in transmission connection with the main shaft device and the driving gear shaft, the supporting wheel device can be conveniently adjusted, multidirectional movement can be carried out in a time-saving and labor-saving manner, and the applicability of the sofa is greatly improved.

Description

Technical Field

[0001] This utility model belongs to the field of furniture and sofas, and specifically relates to a sofa that is easy to move. Background Technology

[0002] A sofa is a type of furniture typically used in living rooms or relaxation areas, primarily for sitting or reclining. It usually consists of a soft seat cushion and backrest, and sometimes armrests. Sofas come in various designs, including single, double, triple, or larger units, and are made from a wide variety of materials, including fabric, leather, and synthetic materials. Sofas are generally quite heavy, making repositioning them inconvenient.

[0003] Patent application CN201921413986.X discloses a movable sofa, including a sofa body, legs, an adjustment mechanism, and a limiting component. The legs are respectively installed at the four corners of the bottom of the sofa body, and the adjustment mechanism is also installed at the four corners of the bottom of the sofa body, located inside the legs. The adjustment mechanism is fixedly connected to the bottom of the sofa body via the limiting component. This device facilitates sofa movement through the movable component and limits the movement of the casters by the legs, ensuring the legs contact the ground to prevent the sofa from moving and damaging the casters. However, this device only allows movement in one direction, severely restricting mobility. Furthermore, adjusting the movable component requires separate adjustments, which is time-consuming and laborious, making it still quite inconvenient to use. Utility Model Content

[0004] To address the problems mentioned in the background section, this invention provides a sofa that is easy to move, allowing for multi-directional movement with minimal time and effort, thus greatly improving the sofa's versatility.

[0005] To achieve the above objectives, the specific technical solution of this utility model is as follows:

[0006] A movable sofa includes a sofa body. A long platform device arranged in a left-right direction is fixedly installed at the center of the lower end surface of the sofa body. The long platform device includes a long platform, and rotating brackets are provided on the front and rear sides of the center of the long platform. A drive gear shaft is rotatably connected to the rotating brackets. An installation groove is opened on the long platform. A left-right symmetrically arranged installation bracket is fixedly connected to the front and rear sides of the long platform. A support wheel device is hinged to the installation bracket. A main shaft device is rotatably connected between the front and rear symmetrical installation brackets. The support wheel device is fixedly connected to the main shaft device. A drive rack device is slidably connected in the installation groove. The drive rack device is drively connected to the main shaft device and the drive gear shaft.

[0007] As a further feature of the above scheme, one end of the drive gear shaft is connected to a drive motor, and the left and right ends of the long platform are fixedly connected to limit plates.

[0008] As a further feature of the above scheme, the drive rack device includes a first drive plate and a second drive plate, which are slidably connected in a mounting groove. The left end of the first drive plate is connected to a first rack, and the right end is connected to a first driven plate. A driven tooth is formed at the center of the upper surface of the first driven plate, and a first guide groove is formed on the right side of the upper surface of the first drive plate.

[0009] As a further feature of the above scheme, a second rack is connected to the right end of the second drive plate, and a second driven plate is connected to the left end of the second drive plate. The second driven plate is slidably connected to the first guide groove. A second guide groove is opened on the left end face of the second drive plate, and the second guide groove is slidably connected to the first driven plate. A driven tooth is opened at the center of the lower end face of the second driven plate, and the driven teeth arranged above and below are simultaneously connected to the drive gear shaft for transmission.

[0010] As a further provision of the above scheme, the spindle device includes a spindle, a drive gear is fixedly connected to the center of the spindle, the drive gear is connected to the first rack and the second rack respectively, locking rings are provided at both ends of the spindle, and the spindle is rotatably connected to the mounting bracket.

[0011] As a further provision of the above solution, the support wheel device includes a connecting bracket, which is hinged to the mounting bracket. A support platform is fixedly connected to the lower end of the connecting bracket, and a fixing plate is fixedly connected to the outer side of the connecting bracket. A roller is rotatably connected to the outer side of the support platform, with the central axis of the roller parallel to the main shaft. A fixing bracket is fixedly connected to the fixing plate, and a support roller is rotatably connected to the fixing bracket. The support roller is located above the roller, and the central axis of the support roller is perpendicular to the central axis of the roller.

[0012] This utility model has the following beneficial effects:

[0013] By installing a drive rack device on the mounting groove of the long platform, the drive motor drives the drive rack device to move in opposite directions through the drive gear shaft. The drive rack device drives the two main shaft devices to rotate synchronously in opposite directions. The two main shaft devices drive the two symmetrical support wheel devices to rotate synchronously in opposite directions, causing the support platform to disengage from the ground. The rollers and support rollers on the left and right sides then contact the ground. The rollers ensure the sofa body can move left and right, and the support rollers ensure the sofa body can move back and forth. This device allows for convenient adjustment of the support wheel devices, enabling time-saving and labor-saving multi-directional movement, greatly improving the sofa's versatility. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the appearance of this utility model;

[0015] Figure 2 This is a schematic diagram of the sofa body of this utility model;

[0016] Figure 3 This is a schematic diagram of the drive rack and pinion device of this utility model;

[0017] Figure 4 This is a schematic diagram of the spindle device of this utility model;

[0018] Figure 5 This is a schematic diagram of the support wheel device of this utility model.

[0019] 1. Sofa body; 2. Long platform assembly; 3. Drive rack assembly; 4. Main shaft assembly; 5. Support wheel assembly; 101. Mounting bracket; 201. Long platform; 202. Mounting slide; 203. Rotating bracket; 204. Drive gear shaft; 205. Drive motor; 206. Limiting plate; 301. First drive plate; 3011. First rack; 3012. First guide groove; 3013. First driven plate; 3014. Driven gear; 302. Second drive plate; 3021. Second rack; 3022. Second guide groove; 3023. Second driven plate; 401. Main shaft; 402. Drive gear; 403. Locking ring; 501. Connecting bracket; 502. Support platform; 503. Roller; 504. Fixing plate; 505. Fixing bracket; 506. Support roller. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0021] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The following will refer to the appendix... Figures 1-5 This application will be described in detail with reference to the embodiments.

[0022] like Figure 1 , Figure 2As shown, a movable sofa has a long platform device 2 fixedly installed at the center of the lower end face of the sofa body 1, which is arranged in a left-right direction. The long platform device 2 includes a long platform 201. Rotating brackets 203 are provided on the front and rear sides of the center of the long platform 201. A drive gear shaft 204 is rotatably connected to the rotating brackets 203. The long platform 201 has a mounting groove 202. The front and rear sides of the long platform 201 are fixedly connected to mounting brackets 101 arranged symmetrically on the left and right. Support wheel devices 5 are hinged to the mounting brackets 101. A main shaft device 4 is rotatably connected between the front and rear symmetrical mounting brackets 101. The support wheel device 5 is fixedly connected to the main shaft device 4. A drive rack device 3 is slidably connected in the mounting groove 202. The drive rack device 3 is connected to the main shaft device 4 and the drive gear shaft 204 in a transmission connection.

[0023] One end of the drive gear shaft 204 is connected to the drive motor 205, and the left and right ends of the long platform 201 are fixedly connected to the limit plates 206.

[0024] like Figure 3 As shown, the drive rack device 3 includes a first drive plate 301 and a second drive plate 302. The first drive plate 301 and the second drive plate 302 are slidably connected in the mounting groove 202. The left end of the first drive plate 301 is connected to a first rack 3011, and the right end is connected to a first driven plate 3013. A driven tooth 3014 is opened at the center of the upper end surface of the first driven plate 3013, and a first guide groove 3012 is opened on the right side of the upper end surface of the first drive plate 301.

[0025] The second drive plate 302 is connected to the right end of the second rack 3021 and to the left end of the second drive plate 302. The second driven plate 3023 is slidably connected to the first guide groove 3012. The second drive plate 3022 is opened on the left end face of the second drive plate 302 and is slidably connected to the first driven plate 3013. The driven tooth 3014 is opened at the center of the lower end face of the second driven plate 3023. The driven tooth 3014 arranged above and below is simultaneously connected to the drive gear shaft 204 for transmission.

[0026] like Figure 4 , Figure 5As shown, the spindle device 4 includes a spindle 401, with a drive gear 402 fixedly connected to the center of the spindle 401. The drive gear 402 is connected to the first rack 3011 and the second rack 3021 respectively. Locking rings 403 are provided at both ends of the spindle 401. The spindle 401 is rotatably connected to the mounting bracket 101. The support wheel device 5 includes a connecting bracket 501, which is hinged to the mounting bracket 101. A support platform 502 is fixedly connected to the lower end of the connecting bracket 501. A fixing plate 504 is fixedly connected to the outer side of the connecting bracket 501. A roller 503 is rotatably connected to the outer side of the support platform 502. The central axis of the roller 503 is parallel to the spindle 401. A fixing bracket 505 is fixedly connected to the fixing plate 504. A support roller 506 is rotatably connected to the fixing bracket 505. The support roller 506 is located above the roller 503, and the central axis of the support roller 506 is perpendicular to the central axis of the roller 503.

[0027] The working process of this utility model is as follows: When the sofa body 1 is in its normal state, the first driven plate 3013 is completely located within the second guide groove 3022, the second driven plate 3023 is completely located within the first guide groove 3012, and the drive rack device 3 is completely located within the mounting slide groove 202. The drive rack device 3 is locked. At this time, the support platform 502 is in contact with the ground to support the sofa body 1, while the rollers 503 and support rollers 506 are not in contact with the ground to avoid damage to the rollers 503 and support rollers 506. When it is necessary to move the sofa body 1, the drive motor 205 drives the drive gear shaft 204 to rotate. The drive gear shaft 204 drives the two first drive plates 301 and the second drive plate 302 to move outward to the left and right sides synchronously through the driven gear 3014. The first rack 3011 and the second rack 3021 synchronously drive the two main shafts 40 1. The two main shafts 401 drive the two sets of symmetrical support wheel devices 5 to rotate synchronously in opposite directions, causing the support platform 502 to disengage from the ground. The rollers 503 first contact the ground, ensuring the sofa body 1 moves left and right. The main shafts 401 continue to rotate, and the first rack 3011 and the second rack 3021 abut against the limiting plate 206, locking the drive rack device 3. At this time, the support rollers 506 contact the ground, ensuring the sofa body 1 moves back and forth. After the movement is completed, the main shafts 401 reverse, causing the first driven plate 3013 to fully abut against the second guide groove 3022 again, and the second driven plate 3023 to fully abut against the first guide groove 3012 again. The drive rack device 3 locks again, and the support platform 502 re-contacts the ground to support the sofa body 1.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model.

[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A movable sofa, comprising a sofa body, characterized in that, A long platform device arranged in a left-right direction is fixedly installed at the center of the lower end face of the sofa body. The long platform device includes a long platform, and rotating brackets are provided on the front and rear sides of the center of the long platform. A drive gear shaft is rotatably connected to the rotating brackets. An installation groove is opened on the long platform. A mounting bracket is fixedly connected to the front and rear sides of the long platform and is symmetrically arranged on the left and right. A support wheel device is hinged to the mounting bracket. A main shaft device is rotatably connected between the symmetrical mounting brackets. The support wheel device is fixedly connected to the main shaft device. A drive rack device is slidably connected in the installation groove. The drive rack device is drively connected to the main shaft device and the drive gear shaft.

2. The movable sofa according to claim 1, characterized in that, One end of the drive gear shaft is connected to a drive motor, and the left and right ends of the long platform are fixedly connected to limit plates.

3. The movable sofa according to claim 2, characterized in that, The drive rack device includes a first drive plate and a second drive plate, which are slidably connected in a mounting groove. The left end of the first drive plate is connected to a first rack, and the right end is connected to a first driven plate. A driven tooth is opened at the center of the upper surface of the first driven plate, and a first guide groove is opened on the right side of the upper surface of the first drive plate.

4. The movable sofa according to claim 3, characterized in that, The second drive plate is connected to a second rack on its right end and a second driven plate on its left end. The second driven plate is slidably connected to the first guide groove. A second guide groove is opened on the left end face of the second drive plate. The second guide groove is slidably connected to the first driven plate. A driven tooth is opened at the center of the lower end face of the second driven plate. The driven teeth arranged above and below are simultaneously connected to the drive gear shaft for transmission.

5. The movable sofa according to claim 3, characterized in that, The spindle assembly includes a spindle, a drive gear is fixedly connected to the center of the spindle, the drive gear is connected to the first rack and the second rack respectively, and locking rings are provided at both ends of the spindle. The spindle is rotatably connected to the mounting bracket.

6. The movable sofa according to claim 5, characterized in that, The support wheel device includes a connecting bracket hinged to a mounting bracket. A support platform is fixedly connected to the lower end of the connecting bracket, and a fixing plate is fixedly connected to the outer side of the connecting bracket. A roller is rotatably connected to the outer side of the support platform, with the central axis of the roller parallel to the main shaft. A fixing bracket is fixedly connected to the fixing plate, and a support roller is rotatably connected to the fixing bracket. The support roller is located above the roller, and the central axis of the support roller is perpendicular to the central axis of the roller.

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