Dual-protection anti-collision mechanism and massage chair
By designing a double-protected anti-collision mechanism, using guide wheels and mechanical switch components, the problems of low adaptability of the existing massage chair anti-collision mechanism and Hall induction failure are solved, and effective anti-collision and high adaptability under different motion trajectories are achieved.
Patent Information
- Application Number
- CN202420853080.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-23
- Publication Date
- 2025-04-18
- Estimated Expiration
- 2034-04-23
AI Technical Summary
The existing massage chairs have low adaptability to the anti-collision mechanism and need to be re-adjusted and installed according to the movement trajectory of different slide rails and movements, and Hall induction may fail, resulting in movement collision.
A double-protected anti-collision mechanism is designed, including a first anti-collision assembly and a second anti-collision assembly, which are respectively connected to an adjacent movement, and the induction and triggering mechanism is realized through the guide wheel and the mechanical switch assembly to ensure that the movement collision is effectively prevented under different motion trajectories.
The adaptability of the anti-collision mechanism is improved, and it can adapt to the movement trajectory of a variety of slide rails and movements without the need to readjust the part position. It also provides double protection through mechanical switch components when Hall induction fails to prevent movement collisions.
Smart Images
Figure CN222765436U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of massage chairs, in particular to a double-protection anti-collision mechanism and a massage chair. Background Art
[0002] The dual-movement massage chair has two upper and lower movements in the iron frame of the backrest. The two movements slide towards or away from each other along the slide rail of the iron frame to massage different parts of the human body. A magnet and a Hall sensor circuit board are usually arranged between the two movements. Hall sensing is used to control the dual movements to stop when they slide towards each other to prevent the two movements from colliding.
[0003] At present, the anti-collision mechanism of massage chairs on the market mainly adopts a fixed sensing device. The fixed sensing device includes a fixed part and a moving part. The fixed part is fixedly installed on the iron frame of the backrest, and the moving part is fixedly installed on the movement. It moves with the movement. When the distance between the two parts is reduced to a certain distance, induction is generated and a stop signal is sent to the control circuit of the movement. Since the track is not linear, the angle of the movement will change during the movement. During the assembly process, it is also necessary to ensure that the fixed part and the moving part can form a specific angle in the limit area to prevent induction. Therefore, for slides with different motion trajectories, the assembly position and angle of the parts of the fixed sensing device are also different. This results in the low adaptability of the fixed sensing device. For different slides and movements, they need to be readjusted and installed. In addition, it is also possible that the Hall sensor fails and the control stop cannot be triggered in time.
[0004] In view of this, the applicant filed this application after studying the existing technology. Utility Model Content
[0005] The utility model provides a double-protection anti-collision mechanism and a massage chair, aiming to improve at least one of the above technical problems.
[0006] In order to solve the above technical problems, the utility model provides a double-protection anti-collision mechanism for a multi-movement massage chair, comprising: a first anti-collision component and a second anti-collision component arranged opposite to each other, wherein the first anti-collision component and the second anti-collision component are respectively connected to two adjacent movements and can move with the movement;
[0007] The first anti-collision component includes a collision fixing seat, a Hall sensor circuit board and a guide wheel. The collision fixing seat is provided with a hinge part for being hinged with the movement. The Hall sensor circuit board is arranged at one end of the collision fixing seat close to the second anti-collision component. The guide wheel is adapted to the slide rail of the massage chair and is connected to one side of the collision fixing seat and away from the hinge part through a rotating shaft, so as to guide the movement of the first anti-collision component.
[0008] The second anti-collision component includes a magnet fixing seat and a mechanical switch component. The magnet fixing seat is fixedly connected to the movement and is provided with a magnet at one end close to the first anti-collision component. The mechanical switch component is connected to one side of the magnet fixing seat and can send a stop signal to the movement control circuit when it is hit.
[0009] As a further optimization, one end of the collision fixing seat close to the second anti-collision component is arc-shaped, and the Hall sensing circuit board is arranged on the side of the collision fixing seat away from the slide rail, and is provided with a plurality of arc-shaped Hall sensing elements.
[0010] As a further optimization, the end of the magnet fixing seat close to the first anti-collision component is arc-shaped, and is provided with a plurality of arc-shaped magnet embedded grooves, and magnets are installed in the magnet embedded grooves.
[0011] As a further optimization, the mechanical switch assembly includes an outer cover, and a touch sensing member and a mechanical travel switch disposed in the outer cover, the touch sensing member being slidably disposed on the rear side of the magnet embedded groove, the mechanical travel switch being disposed on the rear side of the touch sensing member, and having a spring sheet on the side close to the touch sensing member, the mechanical switch assembly being configured to move toward the mechanical travel switch and press the spring sheet to trigger the mechanical travel switch when the touch sensing member is impacted.
[0012] As a further optimization, the touch fixing seat, the outer cover and the touch sensing component are all plastic parts.
[0013] The present application further provides a massage chair, comprising an iron backrest frame, two movements and a double protection anti-collision mechanism as described in any one of the above items, wherein the iron backrest frame is provided with slide rails on both sides, and racks are provided on the sides of the slide rails, and the two movements are provided with motors, and driven wheels and driving wheels are connected on both sides through rotating shafts, and a gear matched with the racks is provided on the rotating shaft of the driving wheel, and the motor is electrically connected to the gear.
[0014] As a further optimization, the first anti-collision component is hinged to the rotating shaft of the driven wheel of one of the movements through a hinged portion.
[0015] By adopting the above technical solution, the utility model can achieve the following technical effects:
[0016] A double-protection anti-collision mechanism of the present application is used for a multi-movement massage chair, including a first anti-collision component and a second anti-collision component arranged opposite to each other, the two anti-collision components are directly connected to two adjacent movements respectively and can move with the movements, and the first anti-collision component is also connected to a guide wheel for guiding the movement of the first anti-collision component, which can ensure that when two adjacent movements move toward each other, the sensing ends of the two anti-collision components can also approach each other. Therefore, it can be adapted to different slide rails and movements, and there is no need to recalculate and adjust the layout position of parts according to slide rails with different motion trajectories, and the adaptability is high.
[0017] In addition, the anti-collision mechanism of the present application designs a mechanical switch component on the second anti-collision component. When the mechanical switch component is hit, it can send a stop signal to the control circuit. When the Hall sensor fails, the mechanical switch component can be used to control the stop of the movement to prevent the two movements from colliding, thereby playing a double protection role. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the drawings required for use in the implementation mode will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.
[0019] Figure 1 This is a schematic diagram of the installation structure of a double protection anti-collision mechanism of the utility model;
[0020] Figure 2 It is a structural schematic diagram of a double protection anti-collision mechanism of the utility model;
[0021] Figure 3 is an exploded view of the second anti-collision component;
[0022] Figure 4 and Figure 5 is a schematic diagram of the installation structure of the first anti-collision component;
[0023] Figure 6 yes Figure 4 The enlarged schematic diagram of point A in the middle;
[0024] Markings in the figure: 1-first movement; 2-second movement; 3-first anti-collision component; 4-second anti-collision component; 5-backrest iron frame; 51-slide rail; 52-rack; 31-touch fixing seat; 32-guide wheel; 33-Hall sensing circuit board; 331-Hall sensing element; 34-hinge; 41-mechanical switch component; 42-magnet fixing seat; 421-magnet embedded groove; 411-touch sensing part; 412-magnet; 413-outer cover; 414-mechanical travel switch; 415-shrapnel; 61-gear; 62-driving wheel; 63-driven wheel; 7-slide rail; 8-rack. DETAILED DESCRIPTION
[0025] In order to make the purpose, technical scheme and advantages of the implementation mode of the utility model clearer, the technical scheme in the implementation mode of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation mode of the utility model. Obviously, the described implementation mode is a part of the implementation mode of the utility model, not all of the implementation modes. Based on the implementation mode in the utility model, all other implementation modes obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Therefore, the following detailed description of the implementation mode of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected implementation mode of the utility model. Based on the implementation mode in the utility model, all other implementation modes obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0026] Example
[0027] Depend on Figures 1 to 6As shown, an embodiment of the utility model provides a double-protection anti-collision mechanism for a multi-movement massage chair, comprising: a first anti-collision component 3 and a second anti-collision component 4, the first anti-collision component 3 and the second anti-collision component 4 are respectively connected to two adjacent movements and can move with the random movements; for the convenience of explanation, the two adjacent movements are represented as the first movement 1 and the second movement 2 below, the first anti-collision component 3 is hinged to the first movement 1, and the second anti-collision component 4 is fixedly connected to the second movement 2. The first anti-collision component 3 includes a collision fixing seat 31, a guide wheel 32 and a Hall sensor circuit board 33. The collision fixing seat 31 is provided with a hinge part 34 for being hinged with the first movement. The Hall sensor circuit board 33 is arranged on the end of the collision fixing seat 31 close to the second anti-collision component 4. The guide wheel 32 is connected to the side of the end of the collision fixing seat 31 away from the hinge part 34 through a rotating shaft. The guide wheel 32 is adapted to the slide rail of the massage chair and is used to guide the first anti-collision component 31 when it moves with the first movement 1, so that the first anti-collision component 31 can always move along the slide rail of the massage chair to ensure that the Hall sensor is installed. One end of the circuit board 33 faces the second anti-collision component 4 and will not be offset. In addition, the guide wheel 32 can also serve as a force fulcrum, playing a role of force support when the first anti-collision component 3 and the second anti-collision component 4 collide, thereby increasing the stability of the structure; the second anti-collision component 4 includes a magnet fixing seat 42 and a mechanical switch assembly 41. The magnet fixing seat 42 is fixedly connected to the second movement 2, and a magnet 412 is provided at one end thereof close to the first anti-collision component 3. The mechanical switch assembly 41 is connected to one side of the magnet fixing seat 42, and can send a stop signal to the movement control circuit when it is hit.
[0028] In this embodiment, the first anti-collision component 3 is hinged on the first movement 1, the second anti-collision component 4 is fixedly connected to the second movement 2, and the two anti-collision components are arranged opposite to each other. When the first movement 1 and the second movement 2 move toward each other along the slide rail of the massage chair, the first anti-collision component 3 and the second anti-collision component 4 also move toward each other. When they are close to a certain distance, the Hall sensing circuit board 33 and the magnet 412 generate Hall sensing and send a stop signal to the control circuit of the movement to stop the two movements from moving toward each other to prevent collision. The guide wheel 32 on the first anti-collision component 3 enables the collision fixing seat 31 to always move along the slide rail, ensuring that the end of the Hall sensing circuit board 33 installed faces the second anti-collision component 4 and will not deviate. Therefore, the anti-collision mechanism of the present application can be adapted to slide rails and movements with a variety of moving trajectories. During installation, there is no need to adjust the installation position of the parts according to the moving trajectory of the slide rail. In addition, a mechanical switch component 41 is also provided on the second anti-collision component 4. When the mechanical switch component 41 is hit, it can send a stop signal to the control circuit of the movement. Therefore, when the Hall sensor fails, the two anti-collision components can control the movement towards each other through contact, thereby preventing the movement from colliding and providing double anti-collision protection.
[0029] Depend on Figure 2 , Figure 3 and Figure 6 As shown, the end of the collision fixing seat 31 close to the second anti-collision component 4 is arc-shaped, and the Hall sensing circuit board 33 is arranged on the side of the collision fixing seat 31 away from the slide rail, and is provided with a plurality of arc-shaped Hall sensing elements 331; the end of the magnet fixing seat 42 close to the first anti-collision component 3 is arc-shaped, and is provided with a plurality of arc-shaped magnet embedded grooves 421, and magnets 412 are installed in the magnet embedded grooves 421. By arranging a plurality of arc-shaped Hall sensing elements 331 and magnets 412, the sensing area can be increased to prevent the lack of sensing due to different moving trajectories or changes in the angle of the movement at different positions. The mechanical switch assembly 41 is connected to the side of the magnet fixing seat 42 close to the slide rail, and includes an outer cover 413, a touch sensor 411 and a mechanical travel switch 414. The touch sensor 411 is slidably arranged at the rear side of the magnet embedded groove 421, so that the magnet and the Hall circuit board can be preferentially sensed. The distance between the touch sensor 411 and the slide rail is the same as the distance between the touch fixing seat 31 and the slide rail. The end of the touch sensor 411 close to the touch fixing seat 31 is arc-shaped. The arc-shaped arrangement can increase the force-bearing area during collision and improve the bearing capacity of the parts. The mechanical travel switch 414 is arranged at the rear side of the touch sensor 411. A spring sheet 415 is provided on the side close to the touch sensing element. When the two anti-collision components move toward each other to a certain distance, the Hall sensing circuit board and the magnet generate induction first. If the induction fails, the two anti-collision components continue to move toward each other, and the touch fixing seat 31 hits the touch sensing element 411. The touch sensing element 411 slides backward under the force, pressing the spring sheet 415, so that the spring sheet 415 triggers the mechanical travel switch 414, so that it sends a stop message to the control circuit of the movement. After the two anti-collision components are separated, the spring sheet 415 is reset under the action of the elastic force, and pushes the touch sensing element 411 to reset. The outer cover 413 is arranged on the outside of the touch sensing element 411 and the mechanical travel switch 414 to fix and protect the touch sensing element 411 and the mechanical travel switch 414. Preferably, the touch fixing seat, the outer cover and the touch sensing element are all made of plastic parts to save costs.
[0030] Depend on Figure 1 and Figure 4 As shown, the present application further provides a massage chair, including a backrest iron frame 5, two movements and the above-mentioned double protection anti-collision mechanism, the backrest iron frame 5 is provided with slide rails 51 on both sides, the slide rails 51 are provided with racks 52 on the sides, the two movements are provided with motors, and the driven wheels 63 and the driving wheels 62 are connected on both sides through the rotating shaft, the driven wheels 63 and the driving wheels 62 are adapted to the slide rails 51, and the rotating shaft of the driving wheel 62 is provided with a gear 61 adapted to the rack 52, the motor is electrically connected to the gear 61, the motor drives the gear 61 to rotate, and then the movement is driven to move along the slide rail through the meshing transmission of the gear 61 and the rack 52. The first anti-collision component 3 is hinged on the rotating shaft of the driven wheel of one of the movements through the hinge part 34.
[0031] The above description is only the preferred implementation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A double protection anti-collision mechanism for a multi-movement massage chair, characterized in that: include: A first anti-collision component and a second anti-collision component are arranged facing each other, wherein the first anti-collision component and the second anti-collision component are respectively connected to two adjacent cores and can move with the core; The first anti-collision component includes a collision fixing seat, a Hall sensor circuit board and a guide wheel. The collision fixing seat is provided with a hinge part for being hinged with the movement. The Hall sensor circuit board is arranged at one end of the collision fixing seat close to the second anti-collision component. The guide wheel is adapted to the slide rail of the massage chair and is connected to one side of the collision fixing seat and away from the hinge part through a rotating shaft, so as to guide the movement of the first anti-collision component. The second anti-collision component includes a magnet fixing seat and a mechanical switch component. The magnet fixing seat is fixedly connected to the movement and is provided with a magnet at one end close to the first anti-collision component. The mechanical switch component is connected to one side of the magnet fixing seat and can send a stop signal to the movement control circuit when it is hit.
2. A double protection anti-collision mechanism according to claim 1, characterized in that The end of the collision fixing seat close to the second anti-collision component is arc-shaped, and the Hall sensing circuit board is arranged on the side of the collision fixing seat away from the slide rail, and is provided with a plurality of arc-shaped Hall sensing elements.
3. A double protection anti-collision mechanism according to claim 1, characterized in that The end of the magnet fixing seat close to the first anti-collision component is arc-shaped, and is provided with a plurality of arc-shaped magnet embedded grooves, and magnets are installed in the magnet embedded grooves.
4. A double protection anti-collision mechanism according to claim 3, characterized in that The mechanical switch assembly includes an outer cover, a touch sensing member and a mechanical travel switch disposed in the outer cover, the touch sensing member is slidably disposed on the rear side of the magnet embedded groove, the mechanical travel switch is disposed on the rear side of the touch sensing member, and a spring sheet is disposed on a side close to the touch sensing member. The mechanical switch assembly is configured so that when the touch sensing member is impacted, it can move toward the mechanical travel switch and press the spring sheet to trigger the mechanical travel switch.
5. A double protection anti-collision mechanism according to claim 4, characterized in that The touch fixing seat, the outer cover and the touch sensing element are all plastic parts.
6. A massage chair, characterized in that , including an iron backrest frame, two movements and a double protection anti-collision mechanism as described in any one of claims 1-5, wherein the iron backrest frame is provided with slide rails on both sides, racks are provided on the sides of the slide rails, the two movements are provided with motors, and driven wheels and driving wheels are connected on both sides through rotating shafts, and a gear matched with the racks is provided on the rotating shaft of the driving wheel, and the motor is electrically connected to the gears.
7. A massage chair according to claim 6, characterized in that The first anti-collision component is hinged on the rotating shaft of the driven wheel of one of the movements through a hinged part.