Connecting mechanism

Abstract

The utility model relates to the technical field of medical instruments, aims to solve the problem of how to improve the disassembly and assembly convenience of a rotating shaft of a motor and a centrifugal cylinder, and provides a connecting mechanism. The connecting mechanism comprises a first connecting piece and a second connecting piece. The first connecting piece comprises a tray and a first suction part, and the tray is connected with the centrifugal cylinder. The second connecting piece comprises a connecting disc and a second attraction part, one end of the connecting disc corresponds to the tray, the other end of the connecting disc is used for being connected with a rotating shaft of the motor, and the second attraction part and the first attraction part can attract each other so that the connecting disc can be detachably connected with the tray. According to the connecting mechanism provided by the embodiment, the connecting disc is connected with the tray through mutual attraction of the second attraction part and the first attraction part of the second connecting piece, so that the rotating shaft of the motor drives the connecting disc to rotate, the tray drives the centrifugal barrel to rotate, and the connecting disc and the tray can be stressed to move, so that the second attraction part is separated from the first attraction part; therefore, the effect of improving the disassembly and assembly convenience of the rotating shaft of the motor and the centrifugal cylinder is achieved.

Description

Technical Field

[0001] This application relates to the field of medical device technology, and more specifically, to connection mechanisms. Background Technology

[0002] Platelet-rich plasma (PRP) is plasma rich in platelets, obtained by centrifuging whole blood from animals or humans. PRP centrifuges are used for centrifuging blood and are widely used in the medical field. The centrifuge drum is fixedly connected to the motor shaft; the rotation of the motor shaft drives the centrifuge drum to rotate, thus performing the centrifugation process.

[0003] In existing technologies, the centrifuge drum is fixedly connected to the motor shaft, which makes it inconvenient to disassemble and assemble the motor shaft and the centrifuge drum. How to solve this technical problem is a question that those skilled in the art need to consider. Utility Model Content

[0004] This application provides a connection mechanism to address the issue of how to improve the ease of assembling and disassembling the motor shaft and the centrifuge drum.

[0005] Embodiments of this application provide a connecting mechanism for driving a centrifuge cylinder to rotate. The connecting mechanism includes a first connecting member and a second connecting member. The first connecting member includes a tray and a first suction portion, the first suction portion being disposed on the tray, and the tray being connected to the centrifuge cylinder. The second connecting member includes a connecting plate and a second suction portion, one end of the connecting plate corresponding to the tray and the other end being used to connect to the rotating shaft of a motor, the second suction portion being disposed on the connecting plate, and the second suction portion being able to attract the first suction portion to detachably connect the connecting plate to the tray.

[0006] Compared to existing technologies, the connecting mechanism provided in this embodiment has a first suction part on the tray, and a connecting plate of the second connector connects the tray and the motor shaft respectively. The second suction part of the second connector attracts the first suction part to connect the connecting plate to the tray, so that the motor shaft drives the connecting plate to rotate, thereby causing the tray to drive the centrifuge to rotate. Furthermore, the connecting plate and the tray can be moved under force to separate the second suction part from the first suction part, thereby disassembling the first connector and the second connector, thus improving the convenience of assembling and disassembling the motor shaft and the centrifuge.

[0007] In one possible implementation, the connecting disc is provided with a groove, the opening of the groove facing the tray, the periphery of the tray corresponding to the inner peripheral sidewall of the groove, and the inner peripheral sidewall of the groove is provided with the second suction portion.

[0008] In one possible implementation, a plurality of first suction portions are provided, and the plurality of first suction portions are distributed around the periphery of the tray; a plurality of second suction portions are provided, and the plurality of second suction portions are distributed on the sidewalls of the groove.

[0009] In one possible implementation, a plurality of first suction portions are evenly distributed around the central axis of the tray, and a plurality of second suction portions are evenly distributed around the central axis of the groove.

[0010] In one possible implementation, the central axis of the tray is coaxial with the central axis of the groove.

[0011] In one possible implementation, the inner peripheral sidewall of the groove is provided with a second placement groove, the second placement groove is provided with a second notch along the direction toward the central axis of the groove, and the second suction part is provided in the second placement groove.

[0012] In one possible implementation, the tray is provided with a first placement groove, the first placement groove having a first notch along a direction opposite to the central axis of the groove, and the first suction part being disposed in the first placement groove.

[0013] In one possible implementation, the first attracting part is a magnet, and the second attracting part is a magnet.

[0014] In one possible implementation, the first attraction part is a hook and loop fastener, and the second attraction part is a hook and loop fastener.

[0015] In one possible implementation, the first placement groove has a first notch along a direction away from the central axis of the groove, and / or the second placement groove has a second notch along a direction towards the central axis of the groove. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings in the embodiments will be briefly described below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a perspective view of the connecting mechanism and centrifuge tube according to an embodiment of this application;

[0018] Figure 2 This is a schematic diagram of the structure of a tray according to an embodiment of this application;

[0019] Figure 3 for Figure 1 A three-dimensional schematic diagram of the connecting mechanism and centrifuge cylinder from another perspective.

[0020] Explanation of key component symbols:

[0021] 1. Connecting mechanism; 11. First connecting member; 111. Tray; 112. First placement groove; 113. First notch; 114. First suction part; 12. Second connecting member; 121. Connecting plate; 122. Groove; 123. Second placement groove; 124. Second notch; 125. Second suction part; 126. Boss; 127. Connecting hole; 2. Centrifuge cylinder. Detailed Implementation

[0022] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0023] Some embodiments of this application are described in detail. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0024] Example

[0025] Please see Figure 1 and Figure 2 As shown, this embodiment provides a connecting mechanism 1 for driving the centrifuge cylinder 2 to rotate. The connecting mechanism 1 includes a first connecting member 11 and a second connecting member 12. The first connecting member 11 includes a tray 111 and a first suction part 114. The first suction part 114 is disposed on the tray 111, and the tray 111 is connected to the centrifuge cylinder 2. The second connecting member 12 includes a connecting plate 121 and a second suction part 125. One end of the connecting plate 121 corresponds to the tray 111, and the other end is used to connect to the rotating shaft of the motor. The second suction part 125 is disposed on the connecting plate 121, and the second suction part 125 can attract each other with the first suction part 114 so that the connecting plate 121 and the tray 111 are detachably connected.

[0026] The connecting mechanism 1 provided in this embodiment provides a first suction part 114 on the tray 111, and a connecting plate 121 of the second connecting member 12 connects the tray 111 and the motor shaft respectively. The second suction part 125 of the second connecting member 12 attracts the first suction part 114 to connect the connecting plate 121 and the tray 111. Thus, the motor shaft drives the connecting plate 121 to rotate, causing the tray 111 to drive the centrifuge cylinder 2 to rotate. Furthermore, the connecting plate 121 and the tray 111 can be moved under force to separate the second suction part 125 from the first suction part 114, thereby disassembling the first connecting member 11 and the second connecting member 12, thus improving the convenience of assembling and disassembling the motor shaft and the centrifuge cylinder 2.

[0027] In this embodiment, the first attraction part 114 and the second attraction part 125 are magnets. When the connecting plate 121 approaches the tray 111, the first attraction part 114 and the second attraction part 125 attract each other magnetically, thereby connecting the connecting plate 121 and the tray 111 together. The rotation of the motor shaft drives the connecting plate 121 to rotate, and the rotation of the connecting plate 121 drives the tray 111 and the centrifuge cylinder 2 to rotate, and the centrifuge cylinder 2 rotates to perform centrifugation. When it is necessary to disassemble the centrifuge cylinder 2, the connecting mechanism 1 separates the connecting plate 121 from the tray 111, and the first attraction part 114 and the second attraction part 125 move away from each other, thus weakening their magnetism, thereby separating the connecting plate 121 from the tray 111. This arrangement facilitates the disassembly and assembly of the motor shaft and the centrifuge cylinder 2.

[0028] In another possible embodiment, the first suction part 114 and the second suction part 125 are hook and loop fasteners. The first suction part 114 is located on the surface of the tray 111 near the connecting plate 121, and the second suction part 125 corresponds to the first suction part 114. The connecting mechanism 1 presses the connecting plate 121 and the tray 111 together, causing the first suction part 114 and the second suction part 125 to stick together. The rotation of the motor shaft drives the connecting plate 121 to rotate, which in turn drives the tray 111 and the centrifuge cylinder 2 to rotate, thus performing centrifugation. When it is necessary to disassemble the centrifuge cylinder 2, the connecting mechanism 1 separates the connecting plate 121 from the tray 111, causing the first suction part 114 and the second suction part 125 to be torn apart, so that the motor shaft can be easily attached to and detached from the centrifuge cylinder 2.

[0029] In one possible implementation, the connecting plate 121 is provided with a groove 122, the opening of the groove 122 faces the tray 111, the periphery of the tray 111 corresponds to the inner peripheral sidewall of the groove 122, and the inner peripheral sidewall of the groove 122 is provided with a second suction part 125.

[0030] In this embodiment, one end face of the connecting plate 121 is recessed to form a groove 122, and the other end face is protruded to form a boss 126. The boss 126 is provided with a connecting hole 127. The motor shaft extends into the connecting hole 127 of the boss 126, so that the connecting plate 121 is connected to the motor shaft through the boss 126. The motor shaft rotates to drive the connecting plate 121 to rotate.

[0031] The inner peripheral sidewall of the groove 122 surrounds the periphery of the tray 111, so that the periphery of the tray 111 corresponds to the inner peripheral sidewall of the groove 122. The connecting plate 121 engages with the tray 111 through the groove 122, thereby improving the stability of the tray 111 when placed on the connecting plate 121. This facilitates the stable rotation of the tray 111 and reduces vibration noise during the movement of the connecting mechanism 1. The tray 111 and the connecting plate 121 can be made of plastic, thereby further reducing friction noise between the tray 111 and the connecting plate 121 during movement.

[0032] The groove 122 of the connecting plate 121 is used to guide the periphery of the tray 111 to facilitate the installation and disassembly of the tray 111 and the connecting plate 121, thereby improving the ease of assembly and disassembly of the motor shaft and the centrifuge cylinder 2.

[0033] In one possible implementation, a plurality of first suction portions 114 are provided, and the plurality of first suction portions 114 are distributed around the periphery of the tray 111; a plurality of second suction portions 125 are provided, and the plurality of second suction portions 125 are distributed on the inner peripheral sidewall of the groove 122.

[0034] In this embodiment, multiple magnets are evenly distributed around the periphery of the tray 111, and the inner peripheral sidewall of the groove 122 is annular, with multiple magnets evenly distributed on the inner peripheral sidewall of the groove 122, thereby enhancing the magnetic attraction of the first attraction part 114 and the second attraction part 125, so that the connecting plate 121 and the tray 111 are tightly connected.

[0035] Multiple first suction parts 114 are evenly distributed around the central axis of the tray 111, and multiple second suction parts 125 are evenly distributed around the central axis of the groove 122. The central axis of the tray 111 and the central axis of the groove 122 are coaxially arranged, which is conducive to the second suction parts 125 driving the first suction parts 114 to rotate smoothly, so that the tray 111 drives the centrifuge cylinder 2 to rotate smoothly.

[0036] Optionally, the periphery of the tray 111 and the inner peripheral sidewall of the groove 122 are spaced apart, and the distance between the periphery of the tray 111 and the inner peripheral sidewall of the groove 122 is less than 15mm. This helps to reduce the frictional resistance between the periphery of the tray 111 and the inner peripheral sidewall of the groove 122, and facilitates the installation and disassembly of the tray 111 and the connecting plate 121.

[0037] Please see Figure 2 As shown, in one possible implementation, the tray 111 is provided with a first placement groove 112, and a first suction part 114 is provided in the first placement groove 112.

[0038] In this embodiment, the magnet is fixed to the first placement groove 112, so that the first placement groove 112 wraps around the first attraction part, thereby controlling the magnetic flux of the first attraction part 114 and preventing the first attraction part 114 from colliding with the second attraction part 125, so as to reduce collision noise.

[0039] Please see Figure 1 and Figure 3 As shown, in another possible embodiment, the first placement groove 112 is provided with a first notch 113 along the direction opposite to the central axis of the groove.

[0040] In this embodiment, the first placement groove 112 is provided with a first notch 113 along the direction away from the central axis of the groove, and the first notch 113 faces the second attraction part 125, thereby increasing the magnetic flux of the magnet along the direction away from the central axis of the groove, so as to enhance the magnetic attraction between the first attraction part 114 and the second attraction part 125.

[0041] In one possible implementation, the inner peripheral sidewall of the groove 122 is provided with a second placement groove 123, and the second attraction part 125 is provided in the second placement groove 123.

[0042] In this embodiment, the first attraction part 114 is disposed on the side of the tray 111 opposite to the connecting plate 121, and the second attraction part 125 corresponds to the first attraction part 114. A magnet is fixed to the second placement groove 123, so that the second placement groove 123 encloses the second attraction part 125, thereby controlling the magnetic flux of the second attraction part 125 and preventing collision between the first attraction part 114 and the second attraction part 125, thus reducing collision noise.

[0043] Please see Figure 1 and Figure 3 As shown, in another possible embodiment, the second placement groove 123 is provided with a second notch 124 along the direction of the central axis toward the groove.

[0044] In this embodiment, the second placement groove 123 is provided with a second notch 124 along the direction of the central axis toward the groove, and the second notch 124 faces the first attraction part 114, thereby increasing the magnetic flux of the magnet along the direction of the central axis toward the groove, so as to enhance the magnetic attraction between the first attraction part 114 and the second attraction part 125.

[0045] In other possible embodiments, the first placement groove 112 is provided with a first notch 113 along the direction away from the central axis of the groove, and the second placement groove 123 is provided with a second notch 124 along the direction towards the central axis of the groove.

[0046] In summary, the connecting mechanism 1 provided in this embodiment, by providing a first suction part 114 on the tray 111, and the connecting plate 121 of the second connecting member 12 connecting the tray 111 and the motor shaft respectively, allows the second suction part 125 of the second connecting member 12 to attract the first suction part 114 to connect the connecting plate 121 and the tray 111. This allows the motor shaft to drive the connecting plate 121 to rotate, causing the tray 111 to drive the centrifuge cylinder 2 to rotate. Furthermore, the connecting plate 121 and the tray 111 can be moved under force, causing the second suction part 125 to separate from the first suction part 114, thereby disassembling the first connecting member 11 and the second connecting member 12, thus improving the ease of assembling and disassembling the motor shaft and the centrifuge cylinder 2. The connecting plate 121 engages with the tray 111 through a groove 122, with the periphery of the tray 111 corresponding to the inner peripheral sidewall of the groove 122, thereby improving the stability of the tray 111 placed on the connecting plate 121. This facilitates stable rotation of the tray 111 and reduces vibration noise during the movement of the connecting mechanism 1. The tray 111 and the connecting plate 121 can be made of plastic, thereby further reducing friction noise of the tray 111 and the connecting plate 121 during movement.

[0047] The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the above preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions to the technical solutions of this application should not depart from the spirit and scope of the technical solutions of this application.

Claims

1. A connecting mechanism for driving a centrifuge cylinder to rotate, characterized in that, The connecting mechanism includes: The first connector includes a tray and a first suction part, the first suction part being disposed on the tray and the tray being connected to the centrifuge cylinder; The second connector includes a connecting plate and a second suction part. One end of the connecting plate corresponds to the tray and the other end is used to connect to the motor shaft. The second suction part is disposed on the connecting plate and can attract each other with the first suction part to detachably connect the connecting plate to the tray.

2. The connecting mechanism according to claim 1, characterized in that: The connecting plate is provided with a groove, the opening of the groove faces the tray, the periphery of the tray corresponds to the inner peripheral sidewall of the groove, and the inner peripheral sidewall of the groove is provided with the second suction part.

3. The connecting mechanism according to claim 2, characterized in that: The first suction part is provided in multiple portions, and the multiple first suction parts are distributed around the periphery of the tray; The second suction part is provided in multiple parts, and the multiple second suction parts are distributed on the sidewall of the groove.

4. The connecting mechanism according to claim 3, characterized in that: The inner peripheral sidewall of the groove is provided with a second placement groove, and the second suction part is provided in the second placement groove.

5. The connecting mechanism according to claim 3, characterized in that: A plurality of first suction portions are evenly distributed around the central axis of the tray, and a plurality of second suction portions are evenly distributed around the central axis of the groove.

6. The connecting mechanism according to claim 3, characterized in that: The central axis of the tray is coaxial with the central axis of the groove.

7. The connecting mechanism according to claim 4, characterized in that: The tray is provided with a first placement slot, and the first suction part is disposed in the first placement slot.

8. The connecting mechanism according to claim 1, characterized in that: The first attractive part is a magnet, and the second attractive part is a magnet.

9. The connecting mechanism according to claim 1, characterized in that: The first attraction part is a hook and loop fastener, and the second attraction part is a hook and loop fastener.

10. The connecting mechanism according to claim 7, characterized in that: The first placement groove has a first notch along the direction away from the central axis of the groove, and / or the second placement groove has a second notch along the direction towards the central axis of the groove.

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