Turnover structure and device

Abstract

The invention relates to a turnover structure and device. The device comprises a shell, a turning cover and a turning structure, the turning structure comprises a first connecting shaft, a second connecting shaft and a springback hinge, the first connecting shaft is connected to the shell, the second connecting shaft is connected to the turning cover, one part of the springback hinge is installed in the first connecting shaft, and the other part of the springback hinge is installed in the second connecting shaft. The springback hinge is configured to be used for providing pre-tightening force for preventing the second connecting shaft and the first connecting shaft from generating relative rotation. The springback hinge can be hidden in the first connecting shaft and the second connecting shaft as a whole, so that the appearance of the turnover structure is simple, and the consistency of the appearance can be kept. And the length of the springback hinge in the axial direction defined by the central axes of the first connecting shaft and the second connecting shaft is smaller than the length of the first mounting hole in the axial direction, so that the first connecting shaft and the second connecting shaft are convenient to disassemble and assemble, the mounting cost is reduced, and the use experience of a user is improved.

Description

Technical Field

[0001] The present application relates to the technical field of flipping equipment, and in particular to a flipping structure and a device having the flipping structure. Background Art

[0002] Extracorporeal membrane oxygenation (ECMO) is a new technology for saving the lives of critically ill patients. Its working principle is to draw venous blood out of the body, and then oxygenate it through an artificial heart-lung bypass made of special materials before injecting it into the patient's arterial or venous system, playing the role of extracorporeal respiratory support or cardiac support to maintain oxygenation and blood supply to human organs and tissues. It can be used to support various serious respiratory diseases and rescue heart failure such as acute myocardial infarction.

[0003] Existing extracorporeal membrane oxygenation systems usually include an intravascular cannula, a connecting tube, a power pump, an oxygenator, a supply tube and a host. The host is the core part of the entire system and is mainly used to control key parameters such as the flow rate and speed of the power pump. Usually, a flap is provided on the host that is rotatably connected to the shell of the host. When the user is using the device, the flap can be opened to operate the device, and the flap can be closed when the device is not in use to protect the control panel of the host or its internal core components from dust or liquid; and in order to enable the flap to automatically reset after opening, the shell and flap of the host are usually connected to each other through a flip structure with an elastic member. However, in the existing flip structure, the elastic member is usually exposed to the flip structure, and the elastic member and the rotating shaft need to be installed separately, and cannot form an independent module, so the overall size of the flip structure is large, the installation is complicated, and it is not suitable for use scenarios with smaller spaces. Summary of the invention

[0004] Based on this, it is necessary to provide a flip structure and a device including the flip structure to address the technical problem that the existing flip structure has a large overall size and is complicated to install, making it unsuitable for use in scenarios with smaller spaces.

[0005] According to one aspect of the present application, a flip structure is provided, comprising:

[0006] The first connecting shaft is provided with a first mounting hole;

[0007] A second connecting shaft is provided with a second mounting hole coaxially arranged with the first mounting hole;

[0008] a rebound hinge, part of which is installed in the first mounting hole and part of which is installed in the second mounting hole, wherein in an axial direction defined by central axes of the first connecting shaft and the second connecting shaft, a length of the rebound hinge is less than or equal to a length of the first mounting hole in the axial direction;

[0009] The second connecting shaft can rotate relative to the first connecting shaft around the central axis of the first connecting shaft and the second connecting shaft under the action of external force, and the rebound hinge is configured to provide a pre-tightening force for the second connecting shaft and the first connecting shaft to produce relative rotation, so that the second connecting shaft can automatically reset after rotating from an initial position to a desired angle.

[0010] In one embodiment, the rebound hinge includes a first rotating shaft, a second rotating shaft and an elastic member, one end of the elastic member is connected to the first rotating shaft, and the other end is connected to the second rotating shaft, the first rotating shaft is coaxially installed in the first mounting hole, at least part of the second rotating shaft is coaxially installed in the second mounting hole, and the second connecting shaft and the second rotating shaft can rotate together around the central axis of the first connecting shaft and the second connecting shaft relative to the first connecting shaft and the first rotating shaft, so that the elastic member undergoes a recoverable deformation.

[0011] In one embodiment, one end of the elastic member has a first connecting portion, and the other end of the elastic member has a second connecting portion, the first connecting portion is connected to the first rotating shaft, the second connecting portion is connected to the second rotating shaft, and the central axis of the first connecting portion and the central axis of the second connecting portion are parallel to the central axes of the first connecting shaft and the second connecting shaft respectively;

[0012] When the second rotating shaft rotates relative to the first rotating shaft from the initial position, the elastic member can undergo a restorable torsional deformation.

[0013] In one embodiment, the first rotating shaft has a accommodating cavity, a portion of the second rotating shaft is accommodated in the accommodating cavity and is rotatably connected to the first rotating shaft, another portion of the second rotating shaft is installed in the second mounting hole, and the elastic member is sleeved on the second rotating shaft.

[0014] In one embodiment, a through hole penetrating the first rotating shaft is formed on the bottom wall of the accommodating cavity, and one end of the second rotating shaft away from the second mounting hole passes through the through hole and is exposed on the first rotating shaft, and a limiting groove is formed on the outer peripheral surface of one end of the second rotating shaft away from the second mounting hole, and a limiting ring is provided on the limiting groove, and the limiting ring is used to limit the movement of the second rotating shaft relative to the first rotating shaft in the axial direction defined by its own center axis.

[0015] In one embodiment, one end of the elastic member has a wedge-shaped surface inclined relative to the central axis of the first connecting shaft and the second connecting shaft, and one end of the second rotating shaft can slidably abut against the wedge-shaped surface;

[0016] When the second rotating shaft rotates relative to the first rotating shaft from the initial position, the elastic member can undergo recoverable compressive deformation in the axial direction defined by the central axes of the first connecting shaft and the second connecting shaft.

[0017] In one embodiment, the outer circumferential surface profile of the first rotating shaft is a non-cylindrical surface that matches the inner circumferential surface profile of the first mounting hole; the outer circumferential surface profile of the second rotating shaft is a non-cylindrical surface that matches the inner circumferential surface profile of the second mounting hole.

[0018] In one embodiment, the flip structure also includes a third connecting shaft, which is coaxial with the second connecting shaft and is spaced apart, and the first connecting shaft is coaxially arranged between the second connecting shaft and the third connecting shaft and is rotatably connected to the second connecting shaft and the third connecting shaft.

[0019] In one embodiment, the flip structure also includes a limit pin, which is passed through the first connecting shaft and the third connecting shaft so that the first connecting shaft can be rotatably connected to the third connecting shaft; the second mounting hole has a step, one end of the rebound hinge abuts against the step of the second mounting hole, and the other end abuts against the limit pin.

[0020] In one embodiment, the third connecting shaft includes a shaft body and a cover body, the shaft body has an inner cavity, and the shaft body is provided with an opening connected to the inner cavity on one side in its radial direction, the cover body is detachably connected to the shaft body and closes the opening, and the cover body has a protrusion on the side facing the inner cavity, and the protrusion abuts against the end of the limit pin away from the rebound hinge.

[0021] According to another aspect of the present application, a device is provided, comprising a shell, a flip cover and the flip structure as described above, wherein a first connecting axis of the flip structure is connected to the shell, a second connecting axis of the flip structure is connected to the flip cover, and the flip cover can rotate relative to the shell around a central axis of the first connecting axis and the second connecting axis to open or close the shell.

[0022] The above-mentioned flip structure and the device including the flip structure are provided with a rebound hinge in the flip structure, a part of the rebound hinge is installed in the first mounting hole of the first connecting shaft, and the other part is installed in the second mounting hole of the second connecting shaft, so that the second connecting shaft can automatically reset to the initial position after rotating an angle relative to the first connecting shaft, and the rebound hinge can be hidden as a whole inside the first connecting shaft and the second connecting shaft, so that the appearance of the flip structure is simple, the consistency of the appearance of the device can be maintained, and it can be suitable for use scenarios with smaller space. Furthermore, by making the axial length of the rebound hinge defined by the central axis of the first mounting hole and the second mounting hole smaller than the length of the first mounting hole in the axial direction, the first connecting shaft and the second connecting shaft are easy to assemble and disassemble, thereby reducing the installation cost and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of a medical device provided in one embodiment of the present application.

[0024] Figure 2 This is a schematic diagram of a medical device apparatus provided in an embodiment of the present application when the flip cover is opened relative to the shell.

[0025] Figure 3 A schematic diagram of a flip structure provided in one embodiment of the present application.

[0026] Figure 4 An exploded schematic diagram of a flip structure provided in one embodiment of the present application.

[0027] Figure 5 A cross-sectional view of a flip structure provided in one embodiment of the present application.

[0028] Figure 6 A perspective view of a rebound hinge provided according to an embodiment of the present application.

[0029] Figure 7 A perspective view of a rebound hinge provided according to another embodiment of the present application.

[0030] Figure 8 A cross-sectional view of a rebound hinge provided in accordance with another embodiment of the present application.

[0031] Fig. 9 An exploded schematic diagram of a rebound hinge provided in another embodiment of the present application.

[0032] Description of reference numerals:

[0033] 10. Medical device; 100. Shell; 200. Flip cover; 300. Flip structure; 310. First connecting axis; 311. First mounting hole; 320. Second connecting axis; 321. Second mounting hole; 330. Rebound hinge; 331. First rotating axis; 3311. Accommodating cavity; 3312. Through hole; 332. Second rotating axis; 3321. Main body; 3322. Connecting rod; 333. Elastic member; 3331. Compression spring; 3332. Connecting block; 3332a. Wedge surface; 3333. First connecting part; 3334. Second connecting part; 334. Limiting ring; 340. Third connecting axis; 341. Shaft body; 3411. Inner cavity; 342. Cover body; 3421. Protrusion; 350. Limiting pin. DETAILED DESCRIPTION

[0034] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0035] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0036] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0037] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0038] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0039] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0040] The present application provides a flip structure and a device having the flip structure, wherein the flip structure is used to rotate a flip cover in the device relative to a shell to control the opening or closing of the shell, thereby protecting the control panel and core components inside the shell from being contaminated by dust or liquid when the above-mentioned device is not in use.

[0041] The following takes the device as a medical device, more specifically the host of the extracorporeal membrane oxygenation system described in the background technology as an example, and takes the flip structure used on the host as an example to illustrate the structure of the flip structure in the present application. It can be understood that in other embodiments, the flip structure of the present application is not limited to being used only in the host of the extracorporeal membrane oxygenation system, but can also be used in other medical devices, especially suitable for controlling the host of medical devices that require small space and easy operation. It can also be understood that the flip structure of the present application can also be used in any other device or any equipment that requires one of the components to be flipped relative to another component, without limitation here.

[0042] See also Figure 1 and Figure 2 , Figure 1 and Figure 2 A schematic diagram showing an embodiment of the present application in which a flip structure 300 is installed in a medical device 10 is shown. The medical device 10 provided in an embodiment of the present application includes a shell 100 and a flip cover 200, wherein a control panel and electronic components of the medical device 10 are installed in the shell 100, and the flip cover 200 is rotatably connected to the shell 100 through the flip structure 300. When a user needs to operate the medical device 10, the flip cover 200 can be rotated at an angle relative to the shell 100 under the action of an external force to open the shell 100. When the user does not use the medical device 10, the flip cover 200 can automatically reset to an initial position under the action of the flip structure 300 to close the shell 100.

[0043] See also Figure 3 and Figure 4 In one embodiment, the flip structure 300 includes a first connecting shaft 310, a second connecting shaft 320 and a rebound hinge 330, wherein the first connecting shaft 310 is connected to the housing 100, the second connecting shaft 320 is connected to the flip cover 200, and the first connecting shaft 310 and the second connecting shaft 320 are coaxially and rotatably connected to each other through the rebound hinge 330, so that the flip cover 200 and the second connecting shaft 320 can rotate together around the central axis of the rebound hinge 330 ( Figure 3 The dotted line shown in the figure, i.e., the central axis of the first connecting shaft 310 and the second connecting shaft 320) rotates relative to the shell 100 and the first connecting shaft 310, and the rebound hinge 330 is configured to provide a preload force for the second connecting shaft 320 and the first connecting shaft 310 to generate relative rotation, so that the second connecting shaft 320 can automatically reset after rotating from an initial position (i.e., the position where the flip cover 200 closes the shell 100) to a desired angle.

[0044] Please continue reading Figure 3 and Figure 4The flip structure 300 further includes a third connecting shaft 340 connected to the flip cover 200, the third connecting shaft 340 is coaxial with the second connecting shaft 320 and is arranged at an interval, the first connecting shaft 310 is coaxially arranged between the second connecting shaft 320 and the third connecting shaft 340, and the first connecting shaft 310 is rotatably connected to the second connecting shaft 320 and the third connecting shaft 340. In a specific embodiment, the flip structure 300 further includes a stop pin 350, the stop pin 350 is penetrated through the first connecting shaft 310 and the third connecting shaft 340, so that the first connecting shaft 310 is rotatably connected to the third connecting shaft 340 through the stop pin 350. And further, one end of the stop pin 350 abuts against one end of the rebound hinge 330, so that the rebound hinge 330 is fixedly penetrated and installed inside the first connecting shaft 310 and the second connecting shaft 320. It is understandable that the first connecting shaft 310 may also be rotatably connected to the third connecting shaft 340 via the rebound hinge 330, which is not limited here.

[0045] Preferably, in Figure 3 and Figure 4 In the illustrated embodiment, there are two first connecting shafts 310, two second connecting shafts 320, two rebound hinges 330, and two stop pins 350, one of which is spaced apart from one end of the third connecting shaft 340, and the other second connecting shaft 320 is spaced apart from the other end of the third connecting shaft 340. Correspondingly, one of the first connecting shafts 310 is disposed between a corresponding second connecting shaft 320 and the third connecting shaft 340, and the other first connecting shaft 310 is disposed between a corresponding other second connecting shaft 320 and the third connecting shaft 340. And one of the first connecting shafts 310 is connected to a corresponding second connecting shaft 320 through a corresponding rebound hinge 330, and is connected to a corresponding end of the third connecting shaft 340 through a corresponding stop pin 350; the other first connecting shaft 310 is connected to a corresponding other second connecting shaft 320 through a corresponding rebound hinge 330, and is connected to a corresponding other end of the third connecting shaft 340 through a corresponding other stop pin 350.

[0046] In this way, by providing the third connecting shaft 340 and by making the number of the first connecting shaft 310, the second connecting shaft 320, the rebound hinge 330 and the limit pin 350 two respectively, the connection between the flip cover 200 and the shell 100 is made more reliable and is not easy to separate from each other when rotating relative to each other.

[0047] It is understandable that the number of third connecting shafts 340 can be more than two, and the number of first connecting shafts 310, second connecting shafts 320, rebound hinges 330 and limit pins 350 is also not limited, and can be more. The specific setting can be based on the length of the flip cover 200, which is not limited here.

[0048] Further, see Figure 5 The first connecting shaft 310 is provided with a first mounting hole 311 in its axial direction, the second connecting shaft 320 is provided with a second mounting hole 321 coaxially arranged with the first mounting hole 311 in its axial direction, the second mounting hole 321 has a step, a part of the rebound hinge 330 is installed in the first mounting hole 311, and a part of the rebound hinge 330 is installed in the second mounting hole 321 by abutting against the step of the second mounting hole 321, and the center axis ( Figure 5 In the axial direction defined by the dotted line shown in (i.e., the central axis of the first connecting shaft 310 and the second connecting shaft 320), the length of the rebound hinge 330 is less than or equal to the length of the first mounting hole 311 in the above axial direction.

[0049] In this way, the rebound hinge 330 can be completely accommodated in the first mounting hole 311, so that when the first connecting shaft 310 is not connected to the second connecting shaft 320, the first connecting shaft 310 can be separated from the second connecting shaft 320. Under the push of the stop pin 350, the rebound hinge 330 can move a distance along its own axial direction, so that a part of the rebound hinge 330 is located in the first mounting hole 311, and the other part is located in the second mounting hole 321 and abuts against the step of the second mounting hole 321, so that the first connecting shaft 310 and the second connecting shaft 320 can be connected to each other, and the flip cover 200 and the housing 100 can be easily disassembled.

[0050] In a specific embodiment, in combination Figure 4 and Figure 5 As shown, the third connecting shaft 340 includes a shaft body 341 and a cover body 342. The shaft body 341 has an inner cavity 3411 that runs through both ends of the shaft body 341, and the shaft body 341 has an opening that communicates with the inner cavity 3411 on one side of the shaft body 341 in the radial direction. The cover body 342 is detachably connected to the shaft body 341 and closes the opening. After the cover body 342 closes the opening of the shaft body 341, the third connecting shaft 340 is cylindrical with the same outer diameter as the first connecting shaft 310 and the second connecting shaft 320, and the rebound hinge 330 is hidden as a whole inside the first connecting shaft 310 and the second connecting shaft 320, so that the appearance of the flip structure 300 is simple, and the rebound hinge 330 and its installation traces are not visible from the appearance, so that the consistency and integrity of the appearance of the medical device 10 can be maintained, and it can be applied to the use scene with a small space.

[0051] Based on the above embodiments, further reference is made to Figure 5The cover body 342 has a protrusion 3421 on the side facing the inner cavity 3411, and the protrusion 3421 abuts against the end of the limit pin 350 away from the rebound hinge 330, so that the limit pin 350 always abuts against the rebound hinge 330 and cannot move along its own axial direction, which not only realizes the simple appearance of the flip structure 300, but also realizes the axial limitation of the rebound hinge 330 and the limit pin 350.

[0052] See also Figure 5 and Figure 6 , is a structure of a specific embodiment of the rebound hinge 330. In this embodiment, the rebound hinge 330 includes a first rotating shaft 331, a second rotating shaft 332 and an elastic member 333. One end of the elastic member 333 is connected to the first rotating shaft 331, and the other end is connected to the second rotating shaft 332. The first rotating shaft 331 is coaxially installed in the first mounting hole 311, and the second rotating shaft 332 is coaxially installed in the second mounting hole 321. Since the flip cover 200 and the second connecting shaft 320 are connected to each other, when the flip cover 200 rotates relative to the shell 100 under the action of external force, the second connecting shaft 320 can drive the second rotating shaft 332 to rotate around the central axis of the rebound hinge 330 relative to the first connecting shaft 310 and the first rotating shaft 331, so that the elastic member 333 undergoes a recoverable deformation, so that the flip cover 200 can automatically return to the initial position after rotating an angle from the initial position and when the external force is eliminated.

[0053] More specifically, in this embodiment, the elastic member 333 includes a compression spring 3331 and a connecting block 3332 connected to each other, the first rotating shaft 331 is provided with an accommodating cavity 3311, the compression spring 3331 is arranged in the accommodating cavity 3311 and connected to the bottom wall of the accommodating cavity 3311, and the connecting block 3332 is located outside the accommodating cavity 3311 and slidably connected to the second rotating shaft 332. The connecting block 3332 has two wedge-shaped surfaces 3332a inclined relative to the central axis of the rebound hinge 330 at one end away from the compression spring 3331, and the distance between the two wedge-shaped surfaces 3332a gradually increases in the direction from the second rotating shaft 332 to the first rotating shaft 331, one end of the second rotating shaft 332 is slidably abutted against the wedge-shaped surface 3332a, and the end surface of the second rotating shaft 332 close to the connecting block 3332 has a shape matching the wedge-shaped surface 3332a. When the second connecting shaft 320 drives the second rotating shaft 332 to rotate, the second rotating shaft 332 can push the connecting block 3332 to move axially along the rebound hinge 330, and push the compression spring 3331 to undergo a recoverable compression deformation, so that when the second rotating shaft 332 rotates 0° to ±90° relative to the initial position under the action of external force, the second rotating shaft 332 can be reset to the initial position of 0° when the external force is eliminated; and when the second rotating shaft 332 rotates ±90° to ±180° relative to the initial position under the action of external force, the second rotating shaft 332 is reset to a position 180° relative to the initial position when the external force is eliminated.

[0054] It can be seen that in the above embodiment, the second rotating shaft 332 can only be reset to the initial position of 0° when it is rotated 0° to ±90° relative to the initial position, so that the rotation angle of the second rotating shaft 332 is limited, resulting in that the second rotating shaft 332 may not be able to reset to the initial position after rotating relative to the first rotating shaft 331.

[0055] In order to solve this problem, the inventor of the present application has improved the above embodiment. Figures 7 to 9 The structure of an improved embodiment of the rebound hinge 330 is shown below. In this embodiment, the rebound hinge 330 still includes a first rotating shaft 331, a second rotating shaft 332 and an elastic member 333, and the first rotating shaft 331 also has an accommodating cavity 3311. Unlike the previous embodiment, the second rotating shaft 332 includes a body 3321 and a connecting rod 3322 connected to each other, the body 3321 is installed in the second installation hole 321, the outer diameter of the body 3321 is larger than the outer diameter of the connecting rod 3322 and equal to the outer diameter of the first rotating shaft 331, one end of the connecting rod 3322 is connected to the body 3321, and the other end extends into the accommodating cavity 3311 and is rotatably connected to the first rotating shaft 331. The elastic member 333 in this embodiment is a torsion spring sleeved on the connecting rod 3322, and one end of the elastic member 333 is connected to the first rotating shaft 331, and the other end is connected to the second rotating shaft 332.

[0056] Specifically, see Figure 8 The bottom wall of the accommodating cavity 3311 is provided with a through hole 3312, one end of the connecting rod 3322 extending into the accommodating cavity 3311 is passed through the through hole 3312 and exposed to the first rotating shaft 331, and the outer peripheral surface of the connecting rod 3322 exposed to the first rotating shaft 331 (i.e., the end of the second rotating shaft 332 away from the second mounting hole 321) is provided with a limiting groove arranged along the circumference of the connecting rod 3322, and the outer peripheral surface of the limiting groove is sleeved with a C-shaped limiting ring 334, The outer diameter of the limit ring 334 is larger than the aperture of the through hole 3312, and the outer peripheral surface of the connecting rod 3322 also has a step arranged along the circumference of the connecting rod 3322, which abuts against the bottom wall of the accommodating cavity 3311, and the limit ring 334 abuts against the outer wall of the first rotating shaft 331 away from the end of the second rotating shaft 332, so that the axial displacement of the second rotating shaft 332 in the rebound hinge 330 is limited, and it can only rotate around the central axis of the rebound hinge 330.

[0057] Further, see Figure 7 and Fig. 9On the basis of this embodiment, one end of the elastic member 333 has a rod-shaped first connecting portion 3333, and the other end has a rod-shaped second connecting portion 3334, the first connecting portion 3333 is connected to the first rotating shaft 331, and the second connecting portion 3334 is connected to the main body 3321 of the second rotating shaft 332, and the central axis of the first connecting portion 3333 and the central axis of the second connecting portion 3334 are respectively parallel to the central axis of the rebound hinge 330 (that is, eccentrically arranged relative to the central axis of the rebound hinge 330), so that the first connecting portion 3333 is vertically inserted in the bottom wall of the accommodating cavity 3311, and the second connecting portion 3334 is vertically inserted in the bottom wall of the main body 3321 of the second rotating shaft 332 close to the first rotating shaft 331.

[0058] In this way, when the second connecting shaft 320 drives the second rotating shaft 332 to rotate relative to the first rotating shaft 331 and the first connecting shaft 310, the elastic member 333 can undergo a recoverable torsional deformation. No matter how many degrees the second rotating shaft 332 rotates from the initial position of 0° (for example, greater than 120°), the second rotating shaft 332 can automatically reset to the initial position of 0°, thereby solving the problem of limited rotation angle of the second rotating shaft 332 caused by the compression deformation generated by the elastic member 333 in the aforementioned embodiment.

[0059] At the same time, by setting the opposite ends of the elastic member 333 to be parallel to the central axis of the rebound hinge 330, compared with the manner in which the two ends of the elastic member 333 are not set parallel to the central axis of the rebound hinge 330, the two ends of the elastic member 333 are easier to install when they are respectively installed with the first rotating shaft 331 and the second rotating shaft 332, and the connection between the elastic member 333 and the first rotating shaft 331 and the second rotating shaft 332 is more secure and not easy to fall off. When the second rotating shaft 332 rotates relative to the first rotating shaft 331, the second rotating shaft 332 can also be automatically reset with the help of the elastic member 333 after rotating a larger angle relative to the first rotating shaft 331, thereby further improving the user experience when using the medical device 10.

[0060] In addition, preferably, see Fig. 9 The outer circumference of the first rotating shaft 331 is a non-cylindrical surface that matches the inner circumference of the first mounting hole 311. Similarly, the outer circumference of the second rotating shaft 332 is also a non-cylindrical surface that matches the inner circumference of the second mounting hole 321. Specifically, the cross-sectional shape of the body 3321 of the first rotating shaft 331 and the second rotating shaft 332 can be a non-circular shape such as a polygon or an ellipse. Thus, without using additional positioning parts, the first rotating shaft 331 can be prevented from rotating relative to the first connecting shaft 310, and the second rotating shaft 332 can be prevented from rotating relative to the second connecting shaft 320.

[0061] Please continue reading Figure 5The installation process of the above-mentioned flip structure 300 is as follows:

[0062] First, the rebound hinge 330 is installed into the first mounting hole 311 of the first connecting shaft 310 , so that the rebound hinge 330 is completely accommodated in the first mounting hole 311 .

[0063] Then, the first connecting shaft 310, the second connecting shaft 320, and the third connecting shaft 340 are coaxially aligned.

[0064] Afterwards, the limiting pin 350 is inserted through the third connecting shaft 340 and the first connecting shaft 310, and the limiting pin 350 is abutted against one end of the rebound hinge 330 and moves toward the rebound hinge 330 together with the rebound hinge 330. Figure 5 The spring hinge 330 moves in the left direction until the body 3321 of the second rotating shaft 332 of the rebound hinge 330 enters the second mounting hole 321 of the second connecting shaft 320 and abuts against the step of the second mounting hole 321 .

[0065] Finally, the cover body 342 of the third connecting shaft 340 is assembled and locked with the shaft body 341 of the third connecting shaft 340 by means of a buckle, and the protrusion 3421 on the cover body 342 abuts against the end of the limit pin 350 away from the rebound hinge 330 to prevent the limit pin 350 from moving toward Figure 5 The flip cover 200 moves in the right direction, thereby realizing the axial limitation of the rebound hinge 330 and the limiting pin 350, and then completing the installation of the flip structure 300, that is, completing the installation of the flip cover 200 and the housing 100.

[0066] When the flip cover 200 and the shell 100 need to be disassembled, it is only necessary to follow the order opposite to the above-mentioned installation steps, that is, first remove the cover body 342 from the shaft body 341, and then pull out the limit pin 350, so that the rebound hinge 330 is completely accommodated in the first installation hole 311 of the first connecting shaft 310, thereby completing the disassembly of the flip cover 200 and the shell 100.

[0067] It can be seen that when installing and disassembling the flip structure 300 provided in the present application, no additional auxiliary tools are needed to complete the installation and disassembly, thereby reducing the installation cost and improving the user experience.

[0068] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0069] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A flip structure, It is characterized in that include: The first connecting shaft is provided with a first mounting hole; A second connecting shaft is provided with a second mounting hole coaxially arranged with the first mounting hole; a rebound hinge, part of which is installed in the first mounting hole and part of which is installed in the second mounting hole, wherein in an axial direction defined by central axes of the first connecting shaft and the second connecting shaft, a length of the rebound hinge is less than or equal to a length of the first mounting hole in the axial direction; The second connecting shaft can rotate relative to the first connecting shaft around the central axis of the first connecting shaft and the second connecting shaft under the action of external force, and the rebound hinge is configured to provide a pre-tightening force for the second connecting shaft and the first connecting shaft to produce relative rotation, so that the second connecting shaft can automatically reset after rotating from an initial position to a desired angle.

2. The flip structure according to claim 1, It is characterized in that The rebound hinge includes a first rotating shaft, a second rotating shaft and an elastic member, one end of the elastic member is connected to the first rotating shaft, and the other end is connected to the second rotating shaft, the first rotating shaft is coaxially installed in the first mounting hole, at least part of the second rotating shaft is coaxially installed in the second mounting hole, and the second connecting shaft and the second rotating shaft can rotate together around the central axis of the first connecting shaft and the second connecting shaft relative to the first connecting shaft and the first rotating shaft, so that the elastic member undergoes a recoverable deformation.

3. The flip structure according to claim 2, It is characterized in that One end of the elastic member has a first connecting portion, and the other end of the elastic member has a second connecting portion, the first connecting portion is connected to the first rotating shaft, the second connecting portion is connected to the second rotating shaft, and the central axis of the first connecting portion and the central axis of the second connecting portion are parallel to the central axes of the first connecting shaft and the second connecting shaft respectively; When the second rotating shaft rotates relative to the first rotating shaft from the initial position, the elastic member can undergo a restorable torsional deformation.

4. The flip structure according to claim 2, It is characterized in that The first rotating shaft has a receiving cavity, a portion of the second rotating shaft is received in the receiving cavity and is rotatably connected to the first rotating shaft, another portion of the second rotating shaft is mounted in the second mounting hole, and the elastic member is sleeved on the second rotating shaft.

5. The flip structure according to claim 4, It is characterized in that A through hole penetrating the first rotating shaft is formed on the bottom wall of the accommodating cavity, and one end of the second rotating shaft away from the second mounting hole passes through the through hole and is exposed on the first rotating shaft, and a limiting groove is formed on the outer circumferential surface of one end of the second rotating shaft away from the second mounting hole, and a limiting ring is provided on the limiting groove, and the limiting ring is used to limit the movement of the second rotating shaft relative to the first rotating shaft in the axial direction defined by its own central axis.

6. The flip structure according to claim 2, It is characterized in that One end of the elastic member has a wedge-shaped surface inclined relative to the central axis of the first connecting shaft and the second connecting shaft, and one end of the second rotating shaft is slidably abutted against the wedge-shaped surface; When the second rotating shaft rotates relative to the first rotating shaft from the initial position, the elastic member can undergo recoverable compressive deformation in the axial direction defined by the central axes of the first connecting shaft and the second connecting shaft.

7. The flip structure according to any one of claims 1 to 6, It is characterized in that The flip structure also includes a third connecting shaft, which is coaxial with the second connecting shaft and arranged at an interval, and the first connecting shaft is coaxially arranged between the second connecting shaft and the third connecting shaft and is rotatably connected to the second connecting shaft and the third connecting shaft.

8. The flip structure according to claim 7, It is characterized in that The flip structure also includes a limit pin, which is passed through the first connecting shaft and the third connecting shaft so that the first connecting shaft can be rotatably connected to the third connecting shaft; the second mounting hole has a step, one end of the rebound hinge abuts against the step of the second mounting hole, and the other end abuts against the limit pin.

9. The flip structure according to claim 8, It is characterized in that The third connecting shaft includes a shaft body and a cover body, the shaft body has an inner cavity, and the shaft body has an opening connected to the inner cavity on one side in its radial direction, the cover body is detachably connected to the shaft body and closes the opening, and the cover body has a protrusion on the side facing the inner cavity, and the protrusion abuts against the end of the limit pin away from the rebound hinge.

10. A device, It is characterized in that It includes a shell, a flip cover and a flip structure as described in any one of claims 1 to 9, wherein the first connecting axis of the flip structure is connected to the shell, the second connecting axis of the flip structure is connected to the flip cover, and the flip cover can rotate relative to the shell around the central axis of the first connecting axis and the second connecting axis to open or close the shell.

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