High-stability care equipment

Abstract

The utility model discloses care equipment which comprises a supporting base, an electric driving mechanism, a driving piece, a bearing frame and a limiting piece, the electric driving mechanism is arranged on the supporting base and is in transmission connection with the driving piece, the driving piece is connected with the bearing frame and supports the bearing frame, and the limiting piece is arranged in a sliding mode relative to the supporting base. When the electric driving mechanism drives the driving piece to drive the bearing frame to do circular motion or arc motion on the vertical face relative to the supporting base, the driving piece slides relative to the limiting piece, and meanwhile the limiting piece slides relative to the supporting base. According to the care equipment, circular motion or arc motion of the bearing frame can be achieved, stability and balance are high, the structure is simple, and cost is low.

Description

Technical Field

[0001] This utility model relates to the field of care products technology, and in particular to a care device with high stability. Background Technology

[0002] Chinese Patent 2023226721858 discloses an infant rocking device that uses a linkage to limit the movement trajectory of the seat body. A drive mechanism can drive the seat body to perform circular motion, enabling horizontal and vertical movement of the seat body. The motion process is as follows: the linkage cycles from vertical upward → horizontal → vertical downward → horizontal → vertical upward to achieve the lifting and lowering of the seat body. However, when the seat body stops at a mid-position and leans to one side, the linkage is horizontally positioned. At this time, the load force of the seat body is transferred to the linkage, which forms a cantilever support, generating a downward overturning force. This easily causes the seat body to sway, resulting in poor balance and stability. Moreover, during the circular motion of the seat body, especially during descent, the seat body is prone to shaking, exhibiting poor stability. Utility Model Content

[0003] In order to overcome at least one of the defects of the prior art, the present invention provides a care device that can realize the circular or arc motion of the support frame, with high stability and balance, and has a simple structure and low cost.

[0004] The technical solution adopted by this utility model to solve its problem is:

[0005] A highly stable care device includes a support base, an electric drive mechanism, a drive component, a support frame, and a limiting component. The electric drive mechanism is disposed on the support base and is connected to the drive component. The drive component is connected to the support frame and supports the support frame. The limiting component is slidably disposed relative to the support base, and the drive component is slidably disposed relative to the limiting component. When the electric drive mechanism drives the drive component, along with the support frame, to perform circular or arc-shaped motion relative to the support base on a vertical plane, the drive component slides relative to the limiting component, and simultaneously the limiting component slides relative to the support base.

[0006] Furthermore, the direction in which the limiting member slides relative to the support base intersects the direction in which the driving member slides relative to the limiting member.

[0007] Furthermore, the direction in which the limiting member slides relative to the support base is perpendicular to the direction in which the driving member slides relative to the limiting member.

[0008] Furthermore, the limiting member slides vertically relative to the supporting base, and the driving member slides horizontally relative to the limiting member.

[0009] Furthermore, the driving component and the limiting component are each provided in two sets, and are respectively arranged on two opposite sides of the electric drive mechanism.

[0010] Furthermore, both ends of the limiting member are slidably mounted on the support base, and the driving member is slidably mounted between the two ends of the limiting member.

[0011] Furthermore, the limiting component includes a slide rod and two sliders, the two sliders are arranged at intervals, the two ends of the slide rod are respectively connected to the two sliders, the driving component and the slide rod are slidably connected, the support base is provided with two guides, and the sliders are provided with mating parts that slidably engage with the guides.

[0012] Furthermore, the guide member is provided with a sliding guide groove and one of a plurality of first rollers, and the mating part includes the sliding guide groove and another of a plurality of first rollers. The first roller rolls in contact with the sliding guide groove, the inner sidewall of the sliding guide groove is V-shaped or arc-shaped, and the circumferential shape of the first roller matches the shape of the sliding guide groove.

[0013] Furthermore, two sliding guide grooves are provided, which are arranged opposite to each other, and each sliding guide groove is fitted with at least two first rollers at intervals.

[0014] Furthermore, the slide rod is in the shape of a cylindrical tube and passes through the drive member. The drive member is provided with several second rollers, and at least two second rollers are arranged opposite each other on the radial sides of the slide rod. The circumference of the second rollers is an arc shape that matches the shape of the slide rod.

[0015] Furthermore, the drive component is provided with a through hole for the slide rod to pass through, at least two first rollers are located at one end of the through hole and are used to clamp the slide rod, and at least two first rollers are located at the other end of the through hole and are used to clamp the slide rod.

[0016] Furthermore, it also includes an auxiliary spring for providing upward assist force, one end of which is connected to the guide and the other end of which is connected to the slider.

[0017] Furthermore, the extension direction of the auxiliary spring is the same as the extension direction of the guide member.

[0018] In summary, the care device provided by this utility model has at least the following technical effects:

[0019] The system utilizes a driving component to move the support frame in a circular or arc-shaped motion relative to the supporting base. A limiting component is incorporated, allowing it to slide relative to the supporting base and the driving component to slide relative to the limiting component. Thus, the load force of the support frame is applied to the limiting component through the driving component, while the limiting component slides on the supporting base. This prevents the support frame from generating a downward overturning force when it stops at a position biased to one side, minimizing wobbling and avoiding vibration during circular or arc-shaped motion. The system exhibits high stability and balance, and its overall structure is simple and low-cost. Other beneficial effects will be demonstrated in the specific implementation details. Attached Figure Description

[0020] Figure 1 This is a partial explosion diagram of the care equipment of this utility model;

[0021] Figure 2 This is a schematic diagram of the care equipment of this utility model after removing the outer shell, frame and supporting legs;

[0022] Figure 3 for Figure 2 A partial explosion diagram of the structure shown;

[0023] Figure 4 This is a schematic diagram showing the connection between the driving component, limiting component, and guiding component of this utility model;

[0024] Figure 5 for Figure 4 An exploded view of the structure shown.

[0025] Figure 6 This is an exploded view of the electric drive mechanism of this utility model.

[0026] The meanings of the reference numerals in the attached figures are as follows:

[0027] 1. Support base; 11. Guide component; 111. Sliding guide groove; 2. Electric drive mechanism; 21. Motor; 22. Drive wheel; 23. Transmission belt; 24. Driven wheel; 25. Worm gear; 26. Worm wheel; 27. Rotating component; 28. Pivot shaft; 3. Drive component; 31. Second roller; 32. Through hole; 33. Bearing; 34. Mounting groove; 4. Bearing frame; 41. Frame body; 42. Mounting seat; 5. Limiting component; 51. Slide rod; 52. Slider; 53. Mating part; 531. First roller; 6. Auxiliary spring; 7. Housing; 8. Dustproof sliding cover. Detailed Implementation

[0028] To better understand and implement this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings.

[0029] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0031] See Figures 1 to 6 This utility model discloses a care device that can be used to care for infants and children, as well as adults. Specifically, it can be used as a lift bed or a lift chair. The following will provide a detailed description using a lift bed for infant care as an example.

[0032] The care equipment includes a support base 1, an electric drive mechanism 2, a drive component 3, a support frame 4, a limiting component 5, and an auxiliary spring 6.

[0033] See Figure 1 , Figure 2 and Figure 6 In this embodiment, the electric drive mechanism 2 is disposed on the support base 1 and is connected to the drive component 3. The electric drive mechanism 2 can drive the drive component 3 to perform circular or arc-shaped motion relative to the support base 1 on the vertical plane. The limiting component 5 can be combined with the electric drive mechanism 2 to control the drive component 3 to prevent deflection during circular or arc-shaped motion. The drive component 3 is connected to the support frame 4 and supports the support frame 4. The drive component 3 can move the support frame 4 together with the support frame 4. The support frame 4 is usually equipped with a soft cloth cover to support the infant's body lying inside the support frame 4. The drive component 3 and the support frame 4 can be indirectly or directly connected. In this embodiment, it is preferable that the two drive components 3 are connected through the support frame 4. After the mounting base 42 is connected, the frame 41 of the support frame 4 is then installed in the mounting base 42. In addition, since the support frame 4 can perform circular or arc motion, it also includes a housing 7 and a dustproof sliding cover 8. The dustproof sliding cover 8 is located on the upper part of the housing 7, and the mounting base 42 passes through the dustproof cover and slides up and down relative to the dustproof cover. The limiting member 5 is slidably arranged relative to the support base 1, and the driving member 3 is slidably arranged relative to the limiting member 5. In this way, the limiting member 5 is combined with the electric drive mechanism 2 to control the driving member 3 to prevent deflection. When the electric drive mechanism 2 drives the driving member 3 to perform circular or arc motion relative to the support base 1 on the vertical plane, the driving member 3 slides relative to the limiting member 5, and at the same time, the limiting member 5 slides relative to the support base 1.

[0034] The drive component 3 and the limiting component 5 are each provided in two sets and are respectively arranged on the two opposite sides of the electric drive mechanism 2, which can improve the stability of the support frame 4 in the width direction of the support base 1 and make the support frame 4 bear the force evenly.

[0035] The limiting member 5 and the supporting base 1 can be directly or indirectly slidably connected; similarly, the driving member 3 and the limiting member 5 can be directly or indirectly slidably connected.

[0036] It should be noted that the innovation of this utility model does not lie in the specific structure of the electric drive mechanism 2. The electric drive mechanism 2 can adopt any structure as long as it can drive the driving component 3 to perform circular or arc-shaped motion relative to the supporting base 1. Therefore, the specific structure of the electric drive mechanism 2 is not limited. For ease of understanding, a preferred embodiment of the electric drive mechanism 2 is as follows: (See reference) Figure 6 The electric drive mechanism 2 includes a motor 21, a drive pulley 22, a transmission belt 23, a driven pulley 24, a worm 25, a worm wheel 26, and a rotating component 27. The motor 21 is fixedly mounted on the support base 1. The drive pulley 22 is fixedly connected to the output shaft of the motor 21. The worm 25 and worm wheel 26 are pivotally connected to the support base 1 and mesh with each other. The driven pulley 24 is fixedly connected to the rotating shaft of the worm 25. The drive pulley 22 and the driven pulley 24 are connected by a drive mechanism. Preferably, the drive pulley 22 and the driven pulley 24 are pulleys, and the diameter of the driven pulley 24 is larger than that of the drive pulley 22. The diameter of the transmission belt 23 is wound around the driving wheel 22 and the driven wheel 24. One end of the rotating part 27 is fixed to the shaft of the worm gear 26, and the other end of the rotating part 27 is pivotally connected to the driving part 3, so that the pivot point between the rotating part 27 and the driving part 3 is offset from the axis of the worm gear 26. Specifically, a pivot shaft 28 can be fixedly set at the other end of the rotating part 27. The driving part 3 is provided with a bearing 33 that cooperates with the pivot shaft 28. In this way, when the motor 21 drives the rotating part 27 to rotate, the rotating part 27 drives the driving part 3 to make circular or arc motion relative to the support base 1.

[0037] In this embodiment, the circular motion of the driving component 3 relative to the supporting base 1 means that the movement trajectory of the driving component 3 is circular, including simultaneous lifting and horizontal movements. The limiting component 5 is limited by the sliding of the supporting base 1 and driven by the sliding of the driving component 3. The sliding of the limiting component 5 is synchronized with the circular motion of the driving component 3. Since the driving component 3 supports the carrier frame 4, the carrier frame 4 also moves in a circular motion when the driving component 3 moves in a circular motion relative to the supporting base 1. Depending on the requirements, the driving component 3 can carry the carrier frame 4 in a complete circular motion or in an arc-shaped arc motion.

[0038] In one specific example, the direction in which the driving member 3 slides relative to the limiting member 5 is different from the direction in which the limiting member 5 slides relative to the support base 1, and these two directions intersect; preferably, these two directions are perpendicular to each other, and even more preferably, the limiting member 5 slides relative to the support base 1 in the vertical direction, and the driving member 3 slides relative to the limiting member 5 in the horizontal direction, so as to improve the stability of the support frame when it makes circular or arc movements.

[0039] Based on the horizontal sliding of the driving component 3 relative to the limiting component 5, one circular motion cycle of the driving component 3 will be equal to one lifting cycle of the limiting component 5. When the driving component 3 is at the lowest position, the limiting component 5 will also be at the lowest position. When the driving component 3 is at the left or right side of the circular trajectory, the limiting component 5 will be at the middle position during the rising or falling process. When the driving component 3 is at the highest position, the limiting component 5 will also be at the highest position.

[0040] In another specific example, the trajectory of the relative sliding between the driving element 3 and the limiting element 5 can also be arc-shaped or curved.

[0041] In another specific example, the limiting member 5 can slide horizontally relative to the supporting base 1, while the driving member 3 slides vertically relative to the limiting member 5. Alternatively, the limiting member 5 can also slide tilted relative to the supporting base 1, and the driving member 3 can slide tilted relative to the limiting member 5.

[0042] In the above scheme, the driving component 3 carries the support frame 4 to make circular or arc-shaped movements relative to the support base 1, and a limiting component 5 is set so that the limiting component 5 slides relative to the support base 1 and the driving component 3 slides relative to the limiting component 5. In this way, the load force of the support frame 4 is applied to the limiting component 5 through the driving component 3, and the limiting component 5 slides on the support base 1. This prevents the support frame 4 from generating a downward overturning force when it moves or stops at a position biased to one side. The support frame 4 is not easy to shake, and it can avoid the vibration of the support frame 4 during circular or arc-shaped movements. It has high stability and high balance, and the overall structure is simple and low cost.

[0043] See Figures 2 to 6 In this embodiment, the limiting member 5 includes two sliders 52 and a sliding rod 51. The two sliders 52 are arranged at intervals, and the sliding rod 51 preferably extends in the horizontal direction. The two ends of the sliding rod 51 are respectively connected to the two sliders 52. The driving member 3 and the sliding rod 51 are slidably connected. The sliders 52 are used to slide relative to the support base 1. In this way, both ends of the limiting member 5 are slidably mounted on the support base 1, and the driving member 3 is slidably mounted on the sliding rod 51. The driving member 3 is slidably mounted between the two ends of the limiting member 5, which helps to improve the stability and balance of the support frame 4 and avoid the support frame 4 from shaking or vibrating.

[0044] Preferably, the support base 1 is provided with two guide members 11, which are arranged at intervals and extend vertically. The positions of the guide members 11 correspond to the positions of the slider 52. The slider 52 is provided with a mating part 53, which slides with the guide members 11 to allow the slider 52 to slide relative to the support base 1 under the action of the guide members 11. Since the guide members 11 extend vertically, the slider 52 moves up and down with the sliding rod 51. Sliding guide grooves 111 are provided on opposite sides of the guide members 11. The extension direction of the sliding guide grooves 111 is the same as the extension direction of the guide members 11. The mating part 53 includes four first rollers 531. Specifically, four first rollers 531 are provided on the side of the slider 52 facing the guide members 11. The four first rollers 531 roll in pairs in the two sliding guide grooves 111 on opposite sides of the guide members 11. The first rollers 531 in each sliding guide groove 111 are arranged at intervals to reduce friction during the lifting and lowering movement, thereby saving effort. Since the driving member 3 is slidably disposed between the two ends of the limiting member 5, it can also be considered that the driving member 3 is located between the two guide members 11.

[0045] Of course, in other examples, each guide 11 may also have only one sliding guide groove 111.

[0046] It should be noted that in other preferred embodiments, the limiting member 5 may also adopt other structures such as the cooperation of a sliding rod and a fixed rod to realize the function of the movement trajectory of the limiting member 5 relative to the supporting base 1.

[0047] In the above scheme, the driving member 3 moves in the area between the two sliders 52, that is, the driving member 3 moves in the area between the two ends of the limiting member 5. On the one hand, the space in the length direction of the support base 1 can be fully utilized, and the size in the width direction of the support base 1 can be saved. On the other hand, the two sliders 52 are arranged at intervals. When the driving member 3 rotates, the driving member 3 slides relative to the sliding rod 51 and drives the sliding rod 51 to rise and fall. The sliding rod 51 drives the sliders 52 at both ends to rise and fall together. The two sliders 52 are restricted by the two guide members 11. That is to say, the force point of the driving member 3 acting on the limiting member 5 is always located between the two guide members 11. In this way, the force tilt caused by the driving member 3 rotating to the horizontal lateral position can be avoided, which can further improve the stability and balance of the support frame 4 and prevent the support frame 4 from shaking or vibrating.

[0048] Understandably, in order to further enhance the overall strength of the limiting component 5, a reinforcing rod can be fixed between the two sliders 52, or the two sliders 52 can be made into a single structure.

[0049] To enhance the stability of the slider 52 when sliding relative to the guide member 11, in this embodiment, the preferred and optional solutions include at least the following:

[0050] (1) The inner wall of the sliding guide groove 111 is V-shaped, and the peripheral shape of the first roller 531 is also V-shaped. That is, the peripheral shape of the first roller 531 matches the shape of the sliding guide groove 111, so that the peripheral side of the first roller 531 can be embedded in the V-shaped sliding guide groove 111.

[0051] (2) The inner wall of the sliding guide groove 111 is arc-shaped, and the circumferential shape of the first roller 531 is also arc-shaped. That is, the circumferential shape of the first roller 531 matches the shape of the sliding guide groove 111, so that the circumferential shape of the first roller 531 can be embedded in the arc-shaped sliding guide groove 111.

[0052] (3) Change the shape of the guide 11, such as making the opposite sides of the guide 11 into a V-shaped or arc-shaped protrusion, while the periphery of the first roller 531 into a V-shaped or arc-shaped concave ring, so as to keep the periphery shape of the first roller 531 matching the shape of the guide part of the guide 11.

[0053] All three schemes described above can form a lateral constraint between the first roller 531 and the guide member 11, thus preventing the bearing frame 4 from swaying or shaking due to uneven or non-centered load forces on the bearing frame 4.

[0054] It is understandable that the objects on which the sliding guide groove 111 and the first roller 531 are set can be interchanged. For example, the guide member 11 is provided with the first roller 531, and the mating part 53 includes the sliding guide groove 111, that is, the sliding guide groove 111 can be set on the slider 52.

[0055] To enhance the stability of the drive component 3 when sliding relative to the slide bar 51, at least the following solutions are available:

[0056] (4) The slide rod 51 is in the shape of a cylindrical tube and passes through the drive member 3. The drive member 3 is provided with four second rollers 31. The four second rollers 31 are arranged opposite to each other on the radial sides of the slide rod 51. Preferably, the drive member 3 is provided with a through hole 32 for the slide rod 51 to pass through and two mounting grooves 34 for accommodating the second rollers 31. The two mounting grooves 34 are respectively connected to the two sides of the through hole 32. Two second rollers 31 (installed in one of the mounting grooves 34) are located at one end of the through hole 32 and roll against the upper and lower sides of the slide rod 51 respectively. The other two second rollers 31 (installed in the other mounting groove 34) are located at the other end of the through hole 32 and roll against the upper and lower sides of the slide rod 51 respectively. That is, the four second rollers 31 are arranged in a matrix. The periphery of the second rollers 31 is an arc shape that matches the shape of the slide rod 51.

[0057] (5) The slide bar 51 is diamond-shaped. The drive component 3 can also be provided with a through hole 32 and four second rollers 31. The periphery of the second rollers 31 is V-shaped to match the shape of the slide bar 51.

[0058] (6) The slide bar 51 can also be provided with a V-shaped or arc-shaped groove. Correspondingly, the periphery of the second roller 31 is a concave V-shape or concave arc shape that matches the shape of the slide bar 51.

[0059] All three schemes described above can create a lateral constraint between the second roller 31 and the slide bar 51, which can also prevent the bearing frame 4 from swaying or shaking due to uneven or non-centered load forces on the bearing frame 4.

[0060] It should be noted that other known structures capable of forming lateral constraint forces may also be used between the slider 52 and the guide member 11; and / or, other known structures capable of forming lateral constraint forces may also be used between the drive member 3 and the slide rod 51, which will not be elaborated here.

[0061] The above-mentioned matching schemes of slider 52 and guide 11, and matching schemes of drive 3 and slide rod 51 can be used individually or in combination.

[0062] It should also be noted that the number of the first roller 531 and the second roller 31 can vary according to design requirements. That is, the number of the first roller 531 on each slider 52 can be two, three, etc., and the number of the second roller 31 on the drive component 3 can be two, three, etc. There is no limitation on the number of the first roller 531 and the second roller 31 here.

[0063] See Figures 2 to 5 In this embodiment, the auxiliary spring 6 is used to provide an upward assist force. One end of the auxiliary spring 6 is connected to the guide member 11, and the other end of the auxiliary spring 6 is connected to the slider 52, so as to realize the connection between the auxiliary spring 6, the support base 1, and the limiting member 5. Preferably, the extension direction of the auxiliary spring 6 is the same as the extension direction of the guide member 11, that is, the extension direction of the auxiliary spring 6 is also vertical. In this way, the auxiliary spring 6 can provide an upward assist force when driving the support frame 4 to rise, and the direction of the upward assist force is the same as the lifting direction of the slider 52, so that the effect of the upward assist force is better, and it plays a role in saving effort, making it easier for the electric drive mechanism 2 to drive the support frame 4 to rise. In addition, because of the upward assist force of the auxiliary spring 6, the cooperation between the sliding guide groove 111 and the first roller 531 can be made tighter, so that the electric drive mechanism 2 drives the support frame 4 to rise and fall more smoothly and stably, with less energy loss, and the support frame 4 is more stable.

[0064] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A highly stable care device, characterized in that, Includes a support base, electric drive mechanism, drive components, load-bearing frame, and limiting components. The electric drive mechanism is disposed on the support base and is connected to the drive component. The drive component is connected to the support frame and supports the support frame. The limiting component is slidably disposed relative to the support base and the drive component is slidably disposed relative to the limiting component. When the electric drive mechanism drives the drive component to move in a circular or arc motion relative to the support base on the vertical plane, the drive component slides relative to the limiting component, and the limiting component slides relative to the support base at the same time.

2. The highly stable care equipment according to claim 1, characterized in that, The direction in which the limiting member slides relative to the support base intersects the direction in which the driving member slides relative to the limiting member.

3. The highly stable care equipment according to claim 2, characterized in that, The direction in which the limiting member slides relative to the support base is perpendicular to the direction in which the driving member slides relative to the limiting member.

4. The highly stable care equipment according to claim 3, characterized in that, The limiting member slides vertically relative to the support base, and the driving member slides horizontally relative to the limiting member.

5. The highly stable care equipment according to claim 1, characterized in that, The driving component and the limiting component are each provided in two sets, and are respectively arranged on two opposite sides of the electric drive mechanism.

6. The highly stable care device according to any one of claims 1 to 5, characterized in that, Both ends of the limiting member are slidably mounted on the support base, and the driving member is slidably mounted between the two ends of the limiting member.

7. The highly stable care equipment according to claim 6, characterized in that, The limiting component includes a slide rod and two sliders, the two sliders being arranged at intervals, the two ends of the slide rod being respectively connected to the two sliders, the driving component and the slide rod being slidably connected, the support base being provided with two guides, and the sliders being provided with mating parts that slidably engage with the guides.

8. The highly stable care equipment according to claim 7, characterized in that, The guide member is provided with a sliding guide groove and one of a plurality of first rollers. The mating part includes the sliding guide groove and the other of a plurality of first rollers. The first roller rolls into the sliding guide groove. The inner sidewall of the sliding guide groove is V-shaped or arc-shaped. The circumferential shape of the first roller matches the shape of the sliding guide groove.

9. The highly stable care equipment according to claim 8, characterized in that, Two sliding guide grooves are provided, and the two sliding guide grooves are arranged opposite to each other. At least two first rollers are fitted on each sliding guide groove at intervals.

10. The highly stable care equipment according to claim 8, characterized in that, The slide rod is in the shape of a cylindrical tube and passes through the driving member. The driving member is provided with a plurality of second rollers, at least two of which are arranged opposite each other on the radial sides of the slide rod. The circumference of the second rollers is an arc shape that matches the shape of the slide rod.

11. The highly stable care equipment according to claim 10, characterized in that, The drive member is provided with a through hole for the slide rod to pass through, at least two first rollers are located at one end of the through hole and are used to clamp the slide rod, and at least two first rollers are located at the other end of the through hole and are used to clamp the slide rod.

12. The highly stable care equipment according to claim 7, characterized in that, It also includes an auxiliary spring for providing an upward assist force, one end of which is connected to the guide and the other end of which is connected to the slider.

13. The highly stable care equipment according to claim 12, characterized in that, The extension direction of the auxiliary spring is the same as the extension direction of the guide member.

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