A massage sofa with a carbon brush-type electrically driven side-tooth meshing mobile carrier vehicle
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-01
- Publication Date
- 2026-08-11
AI Technical Summary
[0005]上述结构中，齿条和齿轮之间通常是在前后方向上进行啮合的，这种啮合方式易受导轨变形影响，当按摩沙发和人体姿态发生变化时（例如从坐立姿态变成躺卧姿态时），导轨的受力发生变化，容易产生形变，使齿轮和齿条之间的间隙增大，进而出现跳齿、滑齿、脱齿等情况，容易造成移动载体车出现移动卡顿、位置偏移、抖动、齿部磨损、过载等问题
[0017]导轨的下端具有向前弯曲延伸至座部下方或向后弯曲延伸至靠背部下方的弯曲段，在不需要使用功能部件时，载体车可搭载功能部件移动至靠背部或座部下方隐藏收纳，相对于原本需要拆卸的功能部件，例如头枕、腰垫而言，可节省沙发周边空间，对于按摩机芯等会对身体后部造成突兀感的功能部件而言，可提高身体后靠时的舒适性。
Smart Images
Figure CN224612246U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a massage sofa with a carbon brush-type electrically driven side-tooth meshing mobile carrier vehicle. Background Technology
[0002] As people's quality of life improves, massage sofas have become widely used equipment in homes and leisure venues.
[0003] The mobile carrier is the core component of the massage sofa. It is usually located behind the user's body and can move up and down along the back of the body. It can be used with functional components such as headrests, lumbar cushions, massage mechanisms, and sensors to achieve functions such as support, massage, and body condition detection for different parts of the body.
[0004] The existing massage sofas that involve the movement of the mobile carrier typically include two guide rails on the back of the massage sofa and guide wheels on both sides of the mobile carrier. The guide rails include racks arranged along the length direction, and gears are provided on both sides of the mobile carrier. The mobile carrier includes a motor that drives the gears to rotate. The movement direction of the mobile carrier is guided by the cooperation of the guide wheels and guide rails, and the movement of the mobile carrier along the guide rails is driven by the cooperation of the gears and racks.
[0005] In the above structure, the rack and pinion typically mesh in the front-to-back direction. This meshing method is susceptible to deformation of the guide rail. When the massage sofa and the human body's posture change (for example, from a sitting position to a lying position), the force on the guide rail changes, which can easily cause deformation. This increases the gap between the gear and the rack, leading to issues such as skipped teeth, slipped teeth, and tooth loss. This can easily cause problems such as movement jamming, positional deviation, vibration, tooth wear, and overload in the mobile carrier vehicle.
[0006] Furthermore, the mobile carrier relies on a motor for movement, which requires electricity to operate. This electricity is typically transmitted via power lines connected to the mobile carrier. To ensure sufficient range of movement, the power lines need to be of a certain length. During the reciprocating motion of the mobile carrier, the power lines are prone to interference, friction, and entanglement with surrounding components, leading to poor contact or breakage, and consequently, power outages or malfunctions. When the mobile carrier carries a massage mechanism, the massage mechanism also requires a power supply, and its power lines are susceptible to the same problems. Summary of the Invention
[0007] To address the shortcomings of existing technologies, this utility model provides a massage sofa with a carbon brush-type electric drive side gear meshing mobile carrier vehicle, which has a more stable and reliable movement and power supply effect.
[0008] This utility model discloses a massage sofa with a carbon brush-type electrically driven side-gear meshing mobile carrier carriage, comprising a sofa body and a carrier carriage. The sofa body includes a backrest and a seat. Two guide rails are laterally distributed on the backrest, and each guide rail includes a rack arranged along its length. The carrier carriage includes travel gears on both sides and a motor that drives the travel gears to rotate in opposite directions. The travel gears and racks on both sides of the carrier carriage mesh with each other. The racks of the two guide rails are located on the inner side of the two guide rails laterally, and the tips of the racks on the two guide rails are oriented towards the middle of the two guide rails. The travel gears on both sides of the carrier carriage mesh with the racks of the guide rails in the lateral direction. A first limiting mechanism is provided between the sides of the carrier carriage and the guide rails to prevent the travel gears from disengaging from the racks in the front-rear direction. At least one guide rail has a conductive strip arranged along its length. A carbon brush that makes conductive contact with the conductive strip is provided on the corresponding side of the carrier carriage, and a spring that drives the carbon brush to press against the conductive strip. The motor is electrically connected to the carbon brush.
[0009] The traveling gear and rack engage laterally, and a first limiting mechanism prevents the traveling gear from disengaging from the rack in the front-rear direction, ensuring reliable meshing between them. This reduces the impact of guide rail deformation on the meshing between the gear and rack, improving the stability of the vehicle's movement. Furthermore, the conductive contact between the carbon brush and the conductive strip provides a stable power supply to the vehicle, avoiding interference, tangling, and breakage issues caused by traditional wire connections, thus improving power supply reliability. The provided power can power the vehicle's motor, enabling the vehicle to move, and can also power other electrical equipment mounted on the vehicle, such as massage mechanisms and sensors.
[0010] Furthermore, the first limiting mechanism includes an annular guide groove disposed on the outer periphery of the traveling gear and a guide protrusion disposed on the guide rail and arranged along its length direction. The guide protrusion is inserted into the annular guide groove, and the inner walls on both sides of the annular guide groove along the axial direction can cooperate with the front and rear sides of the guide protrusion to limit the movement, thereby preventing the traveling gear and the rack from separating.
[0011] Furthermore, both sides of the carrier vehicle are provided with extensions, and the outer side of the extensions is provided with recesses. The travel gear is located at the inner end of the recesses. The inner side of the guide rail (the side corresponding to the other guide rail) is inserted into the recesses, and its rack meshes with the travel gear in the recesses. The recess design of the extensions allows the inner side of the guide rail to be embedded, forming a semi-enclosed structure, which can protect the gear and rack meshing area from external interference and prevent contact with the fabric of the massage sofa or the user's hands.
[0012] Furthermore, a second limiting mechanism is provided between the front / rear inner wall of the notch and the front / rear side of the guide rail to restrict the lateral relative movement of the carrier vehicle and the guide rail. The second limiting mechanism includes a slider and a groove respectively provided on the extension and the guide rail. The cooperation between the slider and the groove restricts the lateral relative movement of the carrier vehicle and the guide rail, avoids misalignment of the gear and rack meshing due to lateral offset, and improves the stability of the carrier vehicle movement.
[0013] Furthermore, a first magnet is provided on the front / rear side of one of the guide rail ends, and a Hall sensor that cooperates with the first magnet is provided on the front / rear inner wall of the notch. When the carrier vehicle moves to the end position of the guide rail, it can be identified, thereby enabling the motor to stop or reverse, preventing the carrier vehicle from running beyond its range, and enabling the carrier vehicle to change direction when it moves to the end position of the guide rail.
[0014] Furthermore, the conductive strip is embedded in a shallow groove on the front / rear side of the guide rail. Multiple stops are connected to the sides of the shallow groove by snap-fit. The multiple stops are arranged along the length of the shallow groove. The stops cooperate with the conductive strip to limit its movement and prevent it from coming out of the shallow groove. This helps to ensure stable contact between the carbon brush and the conductive strip, while also facilitating the installation and maintenance of the conductive strip and extending its service life.
[0015] Furthermore, the conductive strip is movably inserted into the recess, and the carbon brush is movably disposed on the inner wall of the recess, making the overall structure more compact.
[0016] Furthermore, the motor includes a horizontally positioned output shaft, with both ends of the output shaft transmitting power to the travel gears on both sides of the carrier vehicle via a gear set. The gear set includes at least one transmission gear, and a second magnet is mounted on the transmission gear. The carrier vehicle includes a counter that engages with the second magnet. The dual-head motor synchronously drives the gears on both sides via the gear set, ensuring consistent movement speed on both sides of the carrier vehicle and preventing jamming or deviation. The interaction between the second magnet and the counter allows for precise control of the carrier vehicle's reciprocating movement within a small travel range. When the carrier vehicle is equipped with a massage mechanism, the massage techniques of the massage mechanism can be made more varied and comfortable.
[0017] The lower end of the guide rail has a curved section that bends forward to extend below the seat or backward to extend below the backrest. When the functional components are not needed, the carrier can carry the functional components and move them to the backrest or under the seat for hidden storage. Compared to functional components that originally need to be disassembled, such as headrests and lumbar cushions, this can save space around the sofa. For functional components such as massage mechanisms that would cause an abrupt feeling to the back of the body, this can improve the comfort when leaning back. Attached Figure Description
[0018] Figure 1 This is a usage state diagram of an embodiment of the present utility model; Figure 2 This is a cross-sectional view of the present invention in its usage state. Figure 3 The usage state of the carrier vehicle in this embodiment of the utility model Figure 1 ; Figure 4 The usage state of the carrier vehicle in this embodiment of the utility model Figure 2 ; Figure 5 This is an assembly diagram of the carrier vehicle and functional components according to an embodiment of the present utility model; Figure 6 This is a schematic diagram illustrating the cooperation between the carrier vehicle and the guide rail in an embodiment of this utility model. Figure 7 The structure of the carrier vehicle in this embodiment of the utility model Figure 1 ; Figure 8 The structure of the carrier vehicle in this embodiment of the utility model Figure 2 ; Figure 9 This is an internal structural diagram of the carrier vehicle according to an embodiment of the present utility model; Figure 10 This is a structural diagram of the traveling gear according to an embodiment of the present utility model; Figure 11 This is a schematic diagram of the meshing point of the traveling gear and rack in an embodiment of this utility model. Detailed Implementation
[0019] This utility model discloses an embodiment of a massage sofa with a carbon brush-type electrically driven side-tooth meshing mobile carrier vehicle, such as... Figure 1-11 As shown, the sofa includes a main body 1, a carrier trolley 2, and functional components 3. The main body 1 includes a backrest 11 and a seat (not shown in the figure). Two guide rails 4 are horizontally distributed on the backrest 11, extending vertically along the backrest 11. Each guide rail 4 includes a rack 41 arranged along its length. The carrier trolley 2 includes two traveling gears 21 on both sides and a motor 22 that drives the traveling gears 21 to rotate in opposite directions. The traveling gears 21 and racks 41 on both sides of the carrier trolley 2 mesh with each other. The racks 41 of the two guide rails 4 are located on the inner side of the two guide rails 4 laterally, and the tips of the racks 41 of the two guide rails 4 are oriented towards the middle of the two guide rails 4 (e.g., ...). Figure 4 , Figure 6As shown in the figure, the traveling gears 21 on both sides of the carrier vehicle 2 and the racks 41 of the guide rail 4 mesh in the lateral direction. A first limiting mechanism is provided between the two sides of the carrier vehicle 2 and the guide rail 4 to prevent the traveling gears 21 from disengaging from the racks 41 in the front-rear direction. One of the guide rails 4 is provided with a conductive strip 42 along its length (in other embodiments, both guide rails 4 may be provided with conductive strips). A carbon brush 22 is provided on the corresponding side of the carrier vehicle 2 to make conductive contact with the conductive strip 42, and a spring (not shown in the figure) is provided to drive the carbon brush 22 to press against the conductive strip 42. The motor 22 is electrically connected to the carbon brush 22. During the movement of the carrier vehicle 2, the carbon brush 22 always maintains contact with the conductive strip 42 under the action of the spring to realize current transmission. There are at least two conductive strips 42, which correspond to the positive and negative poles of current transmission respectively. In addition to powering the motor 22, the conductive strips 42 can also realize the transmission of electrical signals.
[0020] In this embodiment, the functional component 3 is an inflatable lumbar support. In other embodiments, it can also be a headrest, a massage mechanism, a detection device, etc. The functional component 3 is covered with a cloth cover, and the functional component 3 is connected to the carrier vehicle 2 through the cloth cover. For functional components 3 that require power operation, they can also be powered by a conductive strip 42. For example, in this embodiment, the air pump and solenoid valve that cooperate with the inflatable lumbar support can be powered and controlled by the conductive strip.
[0021] The traveling gear 21 and the rack 41 are engaged laterally, and the first limiting mechanism prevents the traveling gear 21 from disengaging from the rack 41 in the front-rear direction, ensuring reliable meshing between the traveling gear 21 and the rack 41. This reduces the impact of guide rail 4 deformation on the meshing between the gear and the rack 41, improving the stability of the carrier vehicle 2's movement. In addition, the conductive contact between the carbon brush 22 and the conductive strip 42 provides stable power to the carrier vehicle 2, avoiding interference, tangling, and breakage problems caused by traditional wire connections, improving power supply reliability. The provided power can be used to power the motor 22 of the carrier vehicle 2, enabling the carrier vehicle 2 to move.
[0022] The first limiting mechanism includes an annular guide groove 211 disposed on the outer periphery of the traveling gear 21 and a guide protrusion 43 disposed on the guide rail 4 and arranged along its length. The guide protrusion 43 is inserted into the annular guide groove 211. The inner walls of the two sides of the annular guide groove 211 along the axial direction can cooperate with the front and rear sides of the guide protrusion 43 to limit the movement, thereby preventing the traveling gear 21 and the rack 41 from separating. Both sides of the carrier vehicle 2 are provided with extensions 20. The outer side of the extension 20 is provided with a notch 201. The traveling gear 21 is located at the inner end of the notch 201. The inner side of the guide rail 4 (the side corresponding to the other guide rail 4) is inserted into the notch 201. Its rack 41 meshes with the traveling gear 21 in the notch 201. The notch 201 of the extension 20 is designed so that the inner side of the guide rail 4 is embedded, forming a semi-enclosed structure, which can protect the meshing area of the gear rack 41 from external interference and prevent it from touching the fabric of the massage sofa or the user's hand.
[0023] like Figure 8 As shown, the conductive strip 42 is movably inserted into the recess 201, and the carbon brush 22 is movably disposed on the inner wall of the recess 201.
[0024] A second limiting mechanism is provided between the front / rear inner wall of the recess 201 and the front / rear side of the guide rail 4 to restrict the lateral relative movement of the carrier vehicle 2 and the guide rail 4. The second limiting mechanism includes a slider 23 and a groove 44 respectively provided on the extension 20 and the guide rail 4. The cooperation between the slider 23 and the groove 44 restricts the lateral relative movement of the carrier vehicle 2 and the guide rail 4, avoids misalignment of the gear rack 41 due to lateral offset, and improves the stability of the movement of the carrier vehicle 2.
[0025] A first magnet 44 is provided on the front side of the end of one of the guide rails 4. In other embodiments, it can also be provided on the rear side of the guide rail. A Hall sensor is provided on the inner wall of the front side of the notch 201 to cooperate with the first magnet 44. When the carrier vehicle 2 moves to the end position of the guide rail 4, it can be identified, so as to stop the motor 22 or make the motor 22 reverse, avoid the carrier vehicle 2 from running beyond its range, and enable the carrier vehicle 2 to change direction when it moves to the end position of the guide rail 4.
[0026] The conductive strip 42 is embedded in a shallow groove on the rear side of the guide rail 4. In other embodiments, it can also be set in a shallow groove on the front side of the guide rail 4. Multiple stops 5 are connected to the side of the shallow groove by snap-fit. The multiple stops 5 are arranged along the length of the shallow groove. The stops 5 cooperate with the conductive strip 42 to limit its movement and prevent it from falling out of the shallow groove. This helps to ensure stable contact between the carbon brush 22 and the conductive strip 42, and at the same time facilitates the installation and maintenance of the conductive strip 42, extending the service life of the conductive strip 42.
[0027] like Figure 6 , Figure 9As shown, the motor 22 includes a horizontally positioned output shaft 23. The two ends of the output shaft 23 are driven by a speed-changing gear set to drive the traveling gears 21 on both sides of the carrier 2. The speed-changing gear set includes multiple transmission gears connected to the output shaft 23. One of the transmission gears 24 is equipped with a second magnet 241. The carrier 2 includes a counter 25 (using the Hall effect principle) that works in conjunction with the second magnet 241. The dual-head motor 22 drives the gears on both sides synchronously through the speed-changing gear set to ensure the consistency of the movement speed on both sides of the carrier 2 and avoid jamming or deviation. The cooperation between the second magnet 241 and the counter 25 can accurately control the carrier 2 to reciprocate within a small stroke range. When the functional component 3 massages the massage mechanism, it can make the massage techniques of the massage mechanism more diverse and comfortable.
[0028] In this embodiment, as Figure 10 As shown, the traveling gear 21 includes a first gear part 212 and a second gear part 213 that are separately arranged. The first gear part 212 and the second gear part 213 are coaxially connected and fixed. The first gear part 212 meshes with the rack 41, and the second gear part 213 meshes with the transmission gear 24. The annular guide groove 211 is formed by the first gear part 212 and the second gear part 213 at intervals. In other embodiments, the first gear part 212, the second gear part 213 and the annular guide groove 211 can be integrally formed.
[0029] The lower end of the guide rail 4 has a curved section 40 that bends backward and extends below the backrest 11. When the functional component 3 is not needed, the carrier vehicle 2 can carry the functional component 3 and move it to be hidden and stored below the backrest 11 (e.g., Figure 2 As shown, compared to functional components 3 that would otherwise need to be disassembled, such as headrests and lumbar cushions, this design saves space around the sofa and improves comfort when leaning back, especially for functional components 3 such as massage mechanisms that might cause discomfort to the back of the body. In other embodiments, the curved section 40 may also bend forward and extend below the seat.
[0030] The above embodiments are merely one preferred embodiment of the present utility model. Ordinary changes and substitutions made by those skilled in the art within the scope of the present utility model's technical solution are all included within the protection scope of the present utility model.
Claims
1. A massage sofa with a carbon brush-type electrically driven side-gear meshing mobile carrier carriage, comprising a sofa body and a carrier carriage, the sofa body including a backrest and a seat, two guide rails laterally distributed on the backrest, each guide rail including a rack arranged along its length, the carrier carriage including travel gears on both sides and a motor driving the travel gears to rotate in opposite directions, the travel gears and racks on both sides of the carrier carriage meshing with each other, characterized in that: The racks of the two guide rails are located on the inner side of the two guide rails laterally, and the tips of the racks of the two guide rails are set towards the middle of the two guide rails. The traveling gears on both sides of the carrier vehicle mesh with the racks of the guide rails in the lateral direction. A first limiting mechanism is provided between the two sides of the carrier vehicle and the guide rails to prevent the traveling gears from disengaging from the racks in the front-back direction. At least one of the guide rails has a conductive strip arranged along its length. A carbon brush that makes conductive contact with the conductive strip is provided on the corresponding side of the carrier vehicle, and a spring that drives the carbon brush to press against the conductive strip. The motor is electrically connected to the carbon brush.
2. The massage sofa with a carbon brush-type electrically driven side-tooth meshing mobile carrier vehicle according to claim 1, characterized in that: The first limiting mechanism includes an annular guide groove disposed on the outer periphery of the traveling gear and a guide protrusion disposed on the guide rail and arranged along its length direction, wherein the guide protrusion is inserted into the annular guide groove.
3. The massage sofa with a carbon brush-type electrically driven side-tooth meshing mobile carrier vehicle according to claim 1, characterized in that: Both sides of the carrier vehicle are provided with extensions, and the outer side of the extensions is provided with notches. The travel gear is located at the inner end of the notch, and the inner side of the guide rail is inserted into the notch, with its rack meshing with the travel gear in the notch.
4. The massage sofa with a carbon brush-type electrically driven side-tooth meshing mobile carrier vehicle according to claim 3, characterized in that: A second limiting mechanism is provided between the inner wall of the front / rear side of the notch and the inner wall of the front / rear side of the guide rail to restrict the lateral relative movement of the carrier vehicle and the guide rail. The second limiting mechanism includes a slider and a groove respectively provided on the extension and the guide rail.
5. A massage sofa with a carbon brush-type electrically driven side-tooth meshing mobile carrier vehicle according to claim 3, characterized in that: A first magnet is provided on the front / rear side of one of the guide rails, and a Hall sensor that cooperates with the first magnet is provided on the front / rear inner wall of the notch.
6. A massage sofa with a carbon brush-type electrically driven side-tooth meshing mobile carrier vehicle according to claim 3, characterized in that: The conductive strip is embedded in a shallow groove on the front / rear side of the guide rail. Multiple stops are connected to the side of the shallow groove by snap-fit. The multiple stops are arranged along the length of the shallow groove. The stops cooperate with the conductive strip to limit its movement and prevent it from coming out of the shallow groove.
7. A massage sofa with a carbon brush-type electrically driven side-tooth meshing mobile carrier vehicle according to claim 3, characterized in that: The conductive strip is movably inserted into the recess, and the carbon brush is movably disposed on the inner wall of the recess.
8. A massage sofa with a carbon brush-type electrically driven side-tooth meshing mobile carrier vehicle according to claim 1, characterized in that: The motor includes a horizontally positioned output shaft. The two ends of the output shaft are driven by a speed-changing gear set and the travel gears on both sides of the carrier vehicle. The speed-changing gear set includes at least one transmission gear. A second magnet is provided on the transmission gear. The carrier vehicle includes a counter that cooperates with the second magnet to sense the speed.
9. A massage sofa with a carbon brush-type electrically driven side-tooth meshing mobile carrier vehicle according to claim 1, characterized in that: The lower end of the guide rail has a curved section that bends forward to extend below the seat or bends backward to extend below the backrest.