Cover plate assembly, fluid delivery assembly, and care device

Abstract

The utility model relates to nursing equipment technical field provides a kind of cover plate assembly, fluid conveying assembly and nursing equipment.Cover plate assembly includes drive assembly, first transmission component, first cover plate, second transmission component and second cover plate.First transmission component and second transmission component are connected with drive assembly, first cover plate is connected with first transmission component, second cover plate is connected with second transmission component.First cover plate and second cover plate can synchronous motion, to cover one in first structure and second structure on relevant equipment, and make another exposed.Through using above design, only need to set a drive assembly, it can realize the synchronous motion of first cover plate and second cover plate, overall structure is simple and compact.And it is realized when one of first structure and second structure is exposed to perform relevant action, cover protection to another in first structure and second structure, to prevent one structure from causing influence to another structure when performing action.

Description

Technical Field

[0001] This utility model relates to the field of nursing equipment technology, and in particular to a cover plate assembly, a fluid delivery assembly, and a nursing device. Background Technology

[0002] Nursing care equipment is primarily used to provide care for elderly people with disabilities, people with limited self-care abilities, and other individuals. For example, nursing care equipment can move to a target location, collect the user's excrement, and then transport the excrement to a designated location such as a toilet, where it is discharged through sewage pipes, thus eliminating the need for the user to go to the toilet.

[0003] Related nursing equipment features a cover at the outlet of the sewage pipe to prevent leakage and odor spread when sewage is not being discharged. Additionally, a detection and positioning component, such as a TOF (Time of Flight) distance sensor, is typically installed near the outlet to pinpoint the discharge location before discharge, ensuring accuracy. This detection and positioning component is also protected by a cover to prevent contamination that could affect its accuracy. The outlet cover and the protective cover for the detection and positioning component are usually driven by different mechanisms, requiring multiple mechanisms on the sewage pipe and resulting in a large space requirement. Utility Model Content

[0004] In view of this, the present invention provides a cover plate assembly, a fluid delivery assembly, and a nursing device to solve the problem of large space occupation of sewage pipes in related nursing devices.

[0005] To solve the above problems, the technical solution of this utility model is implemented as follows:

[0006] A cover plate assembly includes: a drive assembly for outputting linear motion; a first transmission assembly connected to the drive assembly; a first cover plate connected to the first transmission assembly, the first cover plate being used to reciprocate to cover or expose a first structure; a second transmission assembly connected to the drive assembly; and a second cover plate connected to the second transmission assembly, the second cover plate being used to reciprocate to cover or expose a second structure; wherein the first cover plate and the second cover plate move synchronously to cover one of the first structure and the second structure, and expose the other of the first structure and the second structure.

[0007] In some embodiments, the drive assembly includes: a rotary motor having an output shaft capable of outputting rotational motion; a guide rod having one end connected to the output shaft and having an external thread; and a moving member having a threaded hole, the guide rod passing through the threaded hole and the external thread engaging with the threaded hole; wherein the first transmission assembly and the second transmission assembly are both connected to the moving member.

[0008] In some embodiments, the drive assembly includes: a linear motor having a mover capable of outputting linear motion; and a moving member connected to the mover; wherein both the first transmission assembly and the second transmission assembly are connected to the moving member.

[0009] In some embodiments, the first transmission assembly includes: a first rotating shaft connected to the moving member; a second rotating shaft connected to the first cover plate; a connecting rod with its two ends connected to the first rotating shaft and the second rotating shaft respectively; and a third rotating shaft connected to at least the first cover plate; wherein the first cover plate rotates about the axis of the third rotating shaft to cover the first structure or expose the first structure.

[0010] In some embodiments, the axes of the first rotating shaft, the second rotating shaft, and the third rotating shaft are parallel to each other and are all perpendicular to the direction of movement of the moving component.

[0011] In some embodiments, the second transmission component includes: a rack disposed on the moving member; a first gear meshing with the rack and connected to the second cover plate; wherein the second cover plate rotates synchronously with the first gear to cover the second structure or expose the second structure.

[0012] In some embodiments, the second transmission assembly further includes a second gear that meshes with the rack, and the first gear meshes with the second gear.

[0013] This utility model embodiment also provides a fluid delivery assembly, including: a housing; a delivery pipe, at least partially disposed within the housing, one end of the delivery pipe having an output port; a detection device, at least for detecting the distance between the output port and the delivery target position, the detection device being connected to the housing and disposed adjacent to the output port; and the aforementioned cover plate assembly; wherein, the first structure is the output port, the second structure is the detection device, and the orientation of the output port is the same as the detection direction of the detection device.

[0014] In some embodiments, the fluid delivery assembly further includes an elastic element, one end of which is connected to the second cover plate and the other end of which is connected to the housing, the elastic element applying a force to the second cover plate to hold the second cover plate in a position covering the detection device.

[0015] This utility model embodiment also provides a nursing device, including a device body and the above-mentioned fluid delivery assembly, at least the housing is connected to the device body.

[0016] This utility model provides a cover plate assembly, a fluid delivery assembly, and a care device. The cover plate assembly includes a drive assembly, a first transmission assembly, a first cover plate, a second transmission assembly, and a second cover plate. Both the first and second transmission assemblies are connected to the drive assembly. The first cover plate is connected to the first transmission assembly, and the second cover plate is connected to the second transmission assembly. When the drive assembly outputs linear motion, the first transmission assembly drives the first cover plate to move, and the second transmission assembly drives the second cover plate to move, thereby covering one of the first structure corresponding to the first cover plate and the second structure corresponding to the second cover plate, while exposing the other of the first and second structures. By adopting the above design, only one drive assembly is needed to achieve synchronous movement of the first and second cover plates. The overall structure is simple and compact, solving the problem of large product size caused by separately setting drive components to drive the first and second cover plates. Furthermore, the first and second cover plates move in opposite directions, thus enabling the other of the first and second structures to be covered and protected while one structure is exposed to perform a related action, preventing the other structure from being affected when one structure performs an action. Attached Figure Description

[0017] Figure 1 This is a perspective view of the fluid delivery assembly provided in an embodiment of the present utility model, showing the structure of the cover plate assembly;

[0018] Figure 2 This is a schematic diagram of the fluid transport assembly provided in an embodiment of the present invention from a first-view perspective;

[0019] Figure 3 This is a schematic diagram of the fluid transport assembly provided in this embodiment of the present invention from a second perspective, which is opposite to the first perspective;

[0020] Figure 4 This is a three-dimensional schematic diagram of the moving part provided in the embodiment of this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Drive assembly; 11. Moving part; 111. Threaded hole; 12. Rotary motor; 13. Guide rod; 2. First transmission assembly; 21. First shaft; 22. Second shaft; 23. Connecting rod; 24. Third shaft; 3. First cover plate; 4. Second transmission assembly; 41. Rack; 42. First gear; 43. Second gear; 5. Second cover plate; 6. Fluid conveying assembly; 61. Housing; 62. Conveying pipe; 63. Detection device; 64. Elastic element. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0024] The specific technical features described in the specific embodiments can be combined in any suitable manner without contradiction. For example, different combinations of specific technical features can form different embodiments and technical solutions. To avoid unnecessary repetition, the various possible combinations of the specific technical features in this utility model will not be described separately.

[0025] In the following description, the terms "first," "second," etc., are used merely to distinguish different objects and do not indicate that the objects have the sameness or relationship. It should be understood that the directional descriptions "above," "below," "outside," and "inside" refer to the orientation under normal use conditions, while "left" and "right" refer to the left and right directions shown in the corresponding diagrams, which may or may not be the left and right directions under normal use conditions.

[0026] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. "A plurality of" means two or more.

[0027] like Figures 1 to 3As shown, this embodiment of the present invention provides a cover plate assembly, including a drive assembly 1, a first transmission assembly 2, a first cover plate 3, a second transmission assembly 4, and a second cover plate 5. The first transmission assembly 2 is connected to the drive assembly 1, the first cover plate 3 is connected to the first transmission assembly 2, the second transmission assembly 4 is connected to the drive assembly 1, and the second cover plate 5 is connected to the second transmission assembly 4. The drive assembly 1 is used to output linear motion, and the first transmission assembly 2 is used to transmit the power of the drive assembly 1, driving the first cover plate 3 to reciprocate, thereby covering or exposing the first structure. Similarly, the second transmission assembly 4 drives the second cover plate 5 to reciprocate, thereby covering or exposing the second structure. The first cover plate 3 and the second cover plate 5 move synchronously under the drive of the same drive assembly 1, thereby covering one of the first and second structures and exposing the other of the first and second structures.

[0028] It should be noted that the synchronous movement of the first cover plate 3 and the second cover plate 5 specifically means that the first cover plate 3 and the second cover plate 5 move and stop at the same time, but does not mean that the first cover plate 3 and the second cover plate 5 necessarily have the same direction of movement. In fact, the movement states of the first cover plate 3 and the second cover plate 5 are opposite, that is, when the first cover plate 3 covers the first structure, the second cover plate 5 exposes the second structure.

[0029] The aforementioned first structure and second structure refer to two different structures in the external device connected to the cover assembly. The first structure and second structure can be openings in the external device, components on the external device, or other forms. The first structure and second structure are used to perform different actions in an exposed state, and the actions performed by the first structure and second structure do not need to be performed simultaneously. In this case, the cover assembly provided in this embodiment of the present invention is provided with a first cover 3 corresponding to the first structure and a second cover 5 corresponding to the second structure. This allows one of the first structure and the second structure to be exposed to perform a related action while simultaneously covering and protecting the other. For example, when the first structure performs a related action while the second structure does not, the first cover 3 exposes the first structure, and the second cover 5 simultaneously covers the second structure, thus preventing the first structure from affecting the second structure when performing an action. For a better understanding of the meaning of the first structure and the second structure, please refer to the part of the following embodiment where the cover assembly is applied to the fluid transport assembly 6.

[0030] Specifically, the drive assembly 1 is used to output linear motion, that is, the drive assembly 1 includes a moving part 11 that can reciprocate along a straight line. The first transmission assembly 2 and the second transmission assembly 4 are connected to the moving part 11, thereby obtaining the driving force provided by the moving part 11 to achieve motion. Depending on different transmission structure schemes, the first transmission assembly 2 and the second transmission assembly 4 can convert the linear motion of the moving part 11 into other forms of motion such as rotational motion or flipping motion, or they can change the direction of the linear motion, so as to drive the first cover plate 3 and the second cover plate 5 to perform the required motion.

[0031] To provide the power to cause the moving part 11 to perform linear motion, optionally, in one embodiment, such as Figure 3 As shown, the drive assembly 1 includes a rotary motor 12 and a guide rod 13. The rotary motor 12 has an output shaft capable of outputting rotational motion. One end of the guide rod 13 is connected to the output shaft, and the guide rod 13 is provided with an external thread. Figure 4 As shown, the moving part 11 has a threaded hole 111, and the guide rod 13 passes through the threaded hole 111 so that the external thread engages with the threaded hole 111. The guide rod 13 can be a lead screw. With this design, the guide rod 13 can rotate synchronously with the output shaft, and through the engagement of the external thread with the threaded hole 111, it transmits power to the moving part 11. Simultaneously, the characteristics of the thread convert the rotational motion of the guide rod 13 into the linear motion of the moving part 11.

[0032] In another embodiment, the drive assembly 1 includes a linear motor having a mover capable of outputting linear motion. The moving component 11 is connected to the mover, thereby enabling it to perform linear motion synchronously with the mover. The linear motor can also be replaced by a drive component such as a cylinder that can also output linear motion.

[0033] This utility model provides a cover plate assembly, including a drive assembly 1, a first transmission assembly 2, a first cover plate 3, a second transmission assembly 4, and a second cover plate 5. Both the first transmission assembly 2 and the second transmission assembly 4 are connected to the drive assembly 1, the first cover plate 3 is connected to the first transmission assembly 2, and the second cover plate 5 is connected to the second transmission assembly 4. By adopting this design, only one drive assembly 1 is needed to achieve synchronous movement of the first cover plate 3 and the second cover plate 5. The overall structure is simple and compact, solving the problem of large product size caused by using multiple drive components to drive the first and second cover plates separately. Furthermore, by reversing the movement states of the first cover plate 3 and the second cover plate 5, it is possible to cover and protect the other structure while one structure is exposed to perform a related action, thereby preventing the other structure from being affected when one structure is performing an action and ensuring the reliability of the equipment operation.

[0034] The cover assembly provided in this embodiment can be applied to the sewage discharge pipe in nursing equipment. For example, when the first cover 3 opens the outlet of the sewage discharge pipe, sewage discharge can be performed. When no sewage is being discharged, the first cover 3 can close the outlet to prevent sewage leakage and odor spread. Simultaneously, a detection and positioning component, such as a TOF sensor, is typically installed near the outlet to locate the discharge position before discharge, ensuring accurate alignment between the sewage discharge pipe and the sewage inlet for accurate discharge. During sewage discharge, the second cover 5 can cover the TOF sensor and other detection and positioning components near the outlet, preventing sewage from contaminating these components and affecting detection accuracy. Of course, this cover assembly can also be used in other applications with similar requirements, demonstrating wide applicability and practicality.

[0035] In some embodiments, such as Figure 1 and Figure 2 As shown, the first transmission assembly 2 includes a first rotating shaft 21, a second rotating shaft 22, a connecting rod 23, and a third rotating shaft 24. The first rotating shaft 21 is connected to the moving part 11, the second rotating shaft 22 is connected to the first cover plate 3, and the two ends of the connecting rod 23 are connected to the first rotating shaft 21 and the second rotating shaft 22, respectively. The third rotating shaft 24 is at least connected to the first cover plate 3, and the first cover plate 3 can rotate around the axis of the third rotating shaft 24 to cover the first structure or expose the first structure.

[0036] Specifically, when the moving part 11 moves in a straight line, the position of the first rotating shaft 21 changes accordingly, and causes the end of the connecting rod 23 connected to the first rotating shaft 21 to be displaced. At the same time, the main body of the connecting rod 23 rotates around the axis of the first rotating shaft 21 and the second rotating shaft 22, and causes the second rotating shaft 22 to be displaced, thereby causing the second rotating shaft 22 to drive the first cover plate 3 to move.

[0037] The third rotating shaft 24 is connected to the first cover plate 3 and can also be connected to an external device, so that the axis of the third rotating shaft 24 is relatively fixed with respect to the first structure. This allows the first cover plate 3 to either cover or expose the first structure when it rotates around the axis of the third rotating shaft 24. Optionally, the third rotating shaft 24 can be fixedly connected to an external device and movably connected to the first cover plate 3, or vice versa, as long as the axis of the third rotating shaft 24 is relatively fixed with respect to the first structure. It is understood that the connection method for the first rotating shaft 21 and the second rotating shaft 22 is similar to that for the third rotating shaft 24.

[0038] The above embodiment adopts the first transmission component 2 as a linkage mechanism, which realizes the conversion of the linear motion of the moving part 11 into the rotational motion of the first cover plate 3 around the third rotating shaft 24. The structure is ingeniously designed and has good transmission reliability.

[0039] In some embodiments, such as Figure 2 As shown, the axes of the first rotating shaft 21, the second rotating shaft 22, and the third rotating shaft 24 are parallel to each other and all perpendicular to the direction of movement of the moving member 11. For example, as... Figure 2 As shown, the axes of the first rotating shaft 21, the second rotating shaft 22, and the third rotating shaft 24 can all be set perpendicular to the plane of the paper, and the direction of movement of the moving part 11 is the up-down direction shown in the figure. By setting it in this way, the movement directions of the moving part 11, the first transmission assembly 2, and the first cover plate 3 can all be located in the same plane, resulting in good movement stability, improved power transmission efficiency, and reduced energy loss during transmission.

[0040] In some embodiments, such as Figure 3 As shown, the second transmission assembly 4 includes a rack 41 and a first gear 42. The rack 41 is mounted on the moving part 11, and the first gear 42 meshes with the rack 41 and is connected to the second cover plate 5. The second cover plate 5 rotates synchronously with the first gear 42 to cover the second structure or expose the second structure. Specifically, the rack 41 can be integrally formed or fixedly connected to the moving part 11, so that the rack 41 can move synchronously with the moving part 11. Through the meshing connection between the rack 41 and the first gear 42, the first gear 42 is driven to rotate, which in turn drives the second cover plate 5 to rotate. This converts the linear motion of the moving part 11 into the rotational motion of the second cover plate 5. To achieve synchronous rotation between the second cover plate 5 and the first gear 42, the first gear 42 can be fixedly connected to the second cover plate 5, or the first gear 42 can be integrally formed with the second cover plate 5.

[0041] In some embodiments, the second transmission assembly 4 further includes a second gear 43, which meshes with a rack 41, and a first gear 42 meshes with the second gear 43. In other words, the first gear 42 and the rack 41 can achieve indirect meshing transmission through the second gear 43. Furthermore, when only one second gear 43 is provided, the rotation directions of the first gear 42 and the second gear 43 are opposite, thereby allowing adjustment of the rotation direction of the first gear 42 so that the first gear 42 drives the second cover plate 5 to rotate in the desired direction.

[0042] For example, in one implementation, such as Figure 3 As shown, when the moving part 11 and the rack 41 move upward, the second gear 43 rotates counterclockwise, and the first gear 42 and the second cover plate 5 rotate clockwise, causing the second cover plate 5 to expose the second structure. Simultaneously, as... Figure 2As shown, the moving part 11 can drive the first rotating shaft 21 to move upward, ultimately causing the first cover plate 3 to rotate clockwise around the third rotating shaft 24 and cover the first structure. Conversely, when the moving part 11 moves downward, it can expose the first structure and cover the second structure. With this arrangement, the first cover plate 3 and the second cover plate 5 can move synchronously and have opposite movement states.

[0043] Of course, it is understandable that, depending on the design scheme, multiple second gears 43 can be provided, so that each second gear 43 meshes and connects sequentially. Along the arrangement direction of each second gear 43, the rack 41 meshes with the first second gear 43, and the first gear 42 meshes with the last second gear 43. The specific number can be determined according to actual needs. Furthermore, in addition to the scheme in the above embodiment, the first transmission component 2 and the second transmission component 4 can also adopt other design schemes that can realize the transmission function. The specific form of the first transmission component 2 and the second transmission component 4 is not unique, and the design is highly flexible.

[0044] like Figure 1 As shown, this embodiment of the present invention also provides a fluid conveying assembly 6, including a housing 61, a conveying pipe 62, a detection device 63, and the aforementioned cover plate assembly. The conveying pipe 62 is at least partially disposed within the housing 61, and one end of the conveying pipe 62 has an outlet. The detection device 63 is connected to the housing 61 and is disposed adjacent to the outlet. The detection device 63 is used at least to detect the distance between the outlet and the target conveying position. The first structure described above is the outlet of the conveying pipe 62, and the second structure described above is the detection device 63, with the outlet facing the same direction as the detection direction of the detection device 63.

[0045] Specifically, the fluid delivery assembly 6 can be used to transport fluids such as liquids and gases from one location to another. The fluid delivery assembly 6 delivers the fluid through a delivery pipe 62 and outputs the fluid to the outside through an outlet to perform location transfer or discharge treatment of the fluid. For example, when the fluid delivery assembly 6 is applied to nursing equipment, it can discharge waste such as excrement collected by the nursing equipment to a designated location such as a toilet.

[0046] To accurately locate the fluid output and improve output precision, this embodiment of the invention employs a detection device 63 positioned adjacent to the output port, with the output port facing the same direction as the detection device 63. The detection device 63 can utilize a distance-measuring device such as a TOF sensor to detect the distance between the output port and the target delivery location. Based on the detection results, the device can adjust the position and alignment of the output port to ensure it is at the optimal location for fluid output, guaranteeing accuracy and effectively preventing fluid splashing.

[0047] Specifically, before the fluid is output, the first cover plate 3 closes the output port, while the second cover plate 5 is positioned to expose the detection device 63, allowing the detection device 63 to detect the output position and adjust the position of the output port. Once the output position is determined, the drive assembly 1 is activated, causing the first cover plate 3 to move to open the output port, while simultaneously causing the second cover plate 5 to move to cover the detection device 63, thus initiating the fluid output operation.

[0048] This utility model provides a fluid conveying assembly 6, including a housing 61, a conveying pipe 62, a detection device 63, and the aforementioned cover plate assembly. During the process of detecting and determining the output position using the detection device 63, the first cover plate 3 seals the output port, preventing fluid leakage from the output port of the conveying pipe 62, ensuring reliable sealing of the output port, and preventing contamination of the detection device 63 in case of fluid leakage, thus ensuring reliable operation of the detection device 63. During fluid output, the second cover plate 5 covers the detection device 63, effectively preventing the fluid output from the outlet from contacting and contaminating the detection device 63 due to splashing or other reasons, thus preventing a decrease in the detection sensitivity or accuracy of the detection device 63, thereby ensuring the reliability of the detection device 63. Furthermore, only one drive assembly 1 is needed to achieve synchronous movement of the first cover plate 3 and the second cover plate 5, simplifying structural complexity, saving component space, reducing assembly errors, and improving transmission reliability.

[0049] In some embodiments, such as Figure 1 As shown, the fluid delivery assembly 6 also includes an elastic element 64. One end of the elastic element 64 is connected to the second cover plate 5, and the other end is connected to the housing 61. The elastic element 64 applies a force to the second cover plate 5 to keep the second cover plate 5 in a state that covers the detection device 63. The elastic element 64 can be in the form of a spring, a torsion spring, etc., and different connection methods can be used depending on the specific form of the elastic element 64. The only requirement is that the force generated by the elastic element 64 keeps the second cover plate 5 in the position of covering the detection device 63. This design enhances the stability of the second cover plate 5 when it covers the detection device 63, thereby improving the reliability of protecting the detection device 63.

[0050] This utility model embodiment also provides a nursing device, including a device body and the aforementioned fluid delivery component 6, with at least the housing 61 connected to the device body. Specifically, the device body can collect the user's excrement and other waste, and discharge the waste to a designated location such as a toilet through the delivery pipe 62, thereby reducing the user's movement and improving the convenience of toilet access for people with mobility impairments.

[0051] The nursing device provided in this embodiment of the invention, by employing the fluid delivery assembly 6 equipped with the aforementioned cover plate assembly, effectively prevents problems such as leakage of waste and diffusion of odors by sealing the output port of the delivery pipe 62 through the first cover plate 3 during detection and positioning of the detection device 63. It also avoids contamination of the detection device 63 by waste, thus preventing it from affecting the detection accuracy. This allows the detection device 63 to accurately locate the waste discharge position. Furthermore, during waste discharge with the output port open, the second cover plate 5 covers the output port, isolating the discharged waste from the outside of the second cover plate 5, ensuring that the detection device 63 is not contaminated. This allows the detection device 63 to stably perform its position positioning function during waste discharge, improving the reliability of the nursing device.

[0052] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cover plate assembly, characterized in that, include: Drive components are used to output linear motion; The first transmission component is connected to the drive component; A first cover plate is connected to the first transmission assembly, and the first cover plate is used to reciprocate to cover or expose the first structure. The second transmission component is connected to the drive component; The second cover plate is connected to the second transmission assembly and is used to reciprocate to cover or expose the second structure. The first cover plate and the second cover plate move synchronously to cover one of the first structure and the second structure, while exposing the other of the first structure and the second structure.

2. The cover plate assembly as claimed in claim 1, characterized in that, The driving component includes: A rotary motor having an output shaft capable of outputting rotary motion; A guide rod, one end of which is connected to the output shaft, and the guide rod is provided with an external thread; A moving part, wherein a threaded hole is provided on the moving part, the guide rod passes through the threaded hole, and the external thread is engaged with the threaded hole for connection; Both the first transmission component and the second transmission component are connected to the moving part.

3. The cover plate assembly as claimed in claim 1, characterized in that, The driving component includes: A linear motor has a mover that can output linear motion; The moving part is connected to the moving element; Both the first transmission component and the second transmission component are connected to the moving part.

4. The cover plate assembly as claimed in claim 2 or 3, characterized in that, The first transmission assembly includes: The first rotating shaft is connected to the moving part; The second rotating shaft is connected to the first cover plate; The connecting rod is connected at both ends to the first rotating shaft and the second rotating shaft, respectively; The third rotating shaft is at least connected to the first cover plate; The first cover plate rotates about the axis of the third pivot to cover the first structure or expose the first structure.

5. The cover plate assembly as claimed in claim 4, characterized in that, The axes of the first rotating shaft, the second rotating shaft, and the third rotating shaft are parallel to each other and are all perpendicular to the direction of movement of the moving part.

6. The cover plate assembly as claimed in claim 2 or 3, characterized in that, The second transmission assembly includes: A rack is disposed on the moving part; The first gear meshes with the rack and is connected to the second cover plate; The second cover plate rotates synchronously with the first gear to cover the second structure or expose the second structure.

7. The cover plate assembly as claimed in claim 6, characterized in that, The second transmission assembly further includes a second gear that meshes with the rack, and the first gear meshes with the second gear.

8. A fluid transport assembly, characterized in that, include: case; A delivery pipe is at least partially disposed within the housing, and one end of the delivery pipe has an outlet. A detection device, at least for detecting the distance between the output port and the target delivery position, the detection device being connected to the housing and disposed adjacent to the output port; The cover plate assembly as described in any one of claims 1-7; Wherein, the first structure is the output port, the second structure is the detection device, and the orientation of the output port is the same as the detection direction of the detection device.

9. The fluid delivery assembly as claimed in claim 8, characterized in that, The fluid delivery assembly further includes: An elastic element has one end connected to the second cover plate and the other end connected to the housing. The elastic element applies a force to the second cover plate to hold the second cover plate in a position that covers the detection device.

10. A nursing device, characterized in that, It includes a device body and a fluid delivery assembly as described in claim 8 or 9, with at least the housing connected to the device body.

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