Centrifugal adapter
By setting up an anti-detachment structure in the middle of the tube body of the centrifuge adapter, the coordination of the shrapnel and the clamping head is used to solve the problem of loosening and vibration of the adapter under ultra-high-speed centrifugation, and the safety and operation convenience are improved.
Patent Information
- Application Number
- CN202420397373.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-01
- Publication Date
- 2025-02-07
- Estimated Expiration
- 2034-03-01
AI Technical Summary
The existing centrifuge adapters are not safe enough when used in ultra-high speed centrifugation, which is prone to large vibrations up and down, and there is a risk of loosening from the rotor.
A centrifugal adapter including a pipe body and a convex ring is designed. The anti-detachment structure is provided in the middle of the pipe body. The anti-detachment structure includes a shrapnel and a clamp. The shrapnel is located in the movable groove. The clamping head protrudes radially when normal to prevent the pipe. Up and down movement of the body.
It effectively prevents the adapter from loosening and vibrating under ultra-high speed centrifugation, improves safety, avoids the risk of loosening from the rotor, and is simple to operate and is not blocked when taken out.
Smart Images
Figure CN222428259U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a centrifugal adapter. Background Art
[0002] In medical examinations, centrifuges are often used as instruments to separate serum, plasma, precipitate proteins or perform urine sediment tests. Centrifuges can be used to quickly precipitate suspended particles in a mixed solution, thereby separating the components of various substances with different specific gravities. Centrifuges are composed of motors, rotors, speed regulators, timers, and other components. Centrifuges need to be used for centrifugation of test tubes of different capacities when working, and adapters play a conversion role. Converting large capacity to small capacity through adapters is a common operation of centrifuges.
[0003] The existing conventional centrifuge adapter can be found in Figure 1 The adapter is a tube body 1, and a convex ring 1-1 is provided at the upper end of the tube body 1. Figure 2 When in use, the tube body 1 of the adapter is inserted into the test tube insertion hole 5-1 on the rotor 5, and the convex ring 1-1 is used to limit the insertion depth of the adapter. The existing adapter is found to have the following deficiencies when in use, which need to be improved:
[0004] First, the tube body of the existing adapter is inserted into the test tube insertion hole 5-1 of the rotor and cannot move downward, but can be loosened upward, which is not safe to use, especially under ultra-high-speed centrifugation conditions, and is prone to large-scale up and down vibrations, and the risk of loosening from the rotor;
[0005] Second, the convex ring 1-1 of the existing adapter is attached to the inner surface of the rotor 5, which is difficult to remove and apply force, resulting in the problem of inconvenience in pulling out. Utility Model Content
[0006] The utility model provides a centrifugal adapter to solve the problems that the existing adapter is not safe to use under ultra-high-speed centrifugal conditions, is prone to large-scale up and down vibrations, and has the risk of loosening from the rotor.
[0007] In order to achieve the above-mentioned purpose, the scheme of the utility model is: a centrifugal adapter, including a tube body, a convex ring is provided at the upper end of the tube body, and is characterized in that: an anti-slip structure is provided in the middle of the tube body; the anti-slip structure includes a spring sheet; a spring sheet movable groove is provided on the side wall in the middle of the tube body; the spring sheet is located in the spring sheet movable groove; the lower end of the spring sheet is a free end, and a clamp is provided on the free end; the upper end of the spring sheet is fixed to the tube body as a whole; and in normal state, the clamp radially protrudes from the outer wall of the tube body.
[0008] When the adapter of the present technical solution is in use, its tube body is inserted into the test tube insertion hole on the rotor, and its convex ring limits the downward movement of the tube body in the test tube insertion hole, and the clamp on the spring radially protrudes from the outer side wall of the tube body and is just clamped below the outer side of the lower end of the test tube insertion hole of the rotor, and the clamp will block and limit the upward movement of the tube body in the test tube insertion hole.
[0009] Therefore, the tube body of the adapter is inserted into the test tube insertion hole of the rotor and is restricted from moving up and down at the same time, preventing it from loosening upwards. This makes it safer to use under ultra-high-speed centrifugation conditions, prevents or reduces up and down vibrations, and avoids the risk of the adapter loosening from the rotor.
[0010] In addition, when removing, the clamp head is pressed and the spring sheet is deformed to accommodate the clamp head in the spring sheet movable groove. The clamp head no longer protrudes radially from the outer wall of the tube body and can be pulled upward normally. The operation is simple and convenient.
[0011] Furthermore, the clamp head has a front clamping surface and a side bevel; the front clamping surface is perpendicular to the center line of the tube body; and the radial distance between the side bevel and the center line of the tube body gradually decreases in the direction away from the front clamping surface.
[0012] Furthermore, the length of the spring piece along the axial direction of the tube body is mm; the thickness of the spring piece is .mm; and the width of the spring piece is 8mm.
[0013] Furthermore, two anti-slip structures are symmetrically arranged in the middle of the tube body.
[0014] Furthermore, the spring sheet movable groove radially penetrates the side wall of the tube body.
[0015] Furthermore, an elastic pull ring is provided on the convex ring.
[0016] Furthermore, the whole is made of metal or plastic.
[0017] Beneficial effects of the utility model:
[0018] First, the tube body of the centrifugal adapter of the utility model is inserted into the test tube insertion hole of the rotor and is restricted from moving up and down at the same time, preventing it from loosening upwards. This makes it safer to use under ultra-high-speed centrifugal conditions, and can prevent or reduce up and down vibrations, avoiding the risk of the adapter loosening from the rotor;
[0019] Second, the utility model presses the clamp head when taking it out, and the clamp head is stored in the movable groove of the spring piece through deformation of the spring piece, so that the clamp head no longer protrudes radially from the outer wall of the tube body, and then it can be pulled out upward normally, which is simple to operate and very convenient;
[0020] Thirdly, the utility model has a radial distance value between the side slope and the center line of the tube body that gradually decreases in the direction away from the front clamping surface. When the tube body is inserted downward into the test tube insertion hole of the rotor, the clamping head is guided and squeezed by the side slope, forcing the spring sheet to deform and move the clamping head into the spring sheet movable groove to avoid the position, so that the clamping head can be forced to avoid the position during the insertion of the tube body into the test tube insertion hole without any obstruction. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 The utility model is a structural schematic diagram of an existing centrifugal adapter.
[0022] Figure 2 The invention is a cross-sectional view of an existing centrifugal adapter when it is assembled on a rotor.
[0023] Figure 3-4 It is a structural schematic diagram of a centrifugal adapter in the first embodiment of the utility model.
[0024] Figure 5 It is a cross-sectional view of a centrifugal adapter in Embodiment 1 of the utility model when assembled on a rotor.
[0025] Figure 6 yes Figure 5 Enlarged view of point A in the middle.
[0026] Figure 7 It is a stereoscopic diagram of a centrifugal adapter in Embodiment 1 of the present utility model when assembled on a rotor.
[0027] Figure 8 It is a cross-sectional view of a centrifugal adapter in the second embodiment of the present utility model.
[0028] Fig. 9 It is a cross-sectional view of a centrifugal adapter in Embodiment 2 of the present utility model when assembled on a rotor.
[0029] Fig.10 yes Fig. 9 Enlarged view of point B in the middle.
[0030] Fig.11 It is a stereoscopic diagram of a centrifugal adapter in the third embodiment of the present utility model. DETAILED DESCRIPTION
[0031] The utility model is further described below in conjunction with the accompanying drawings and embodiments:
[0032] Example 1: See Figure 3-7 A centrifugal adapter comprises a tube body 1, wherein a convex ring 1-1 is provided at the upper end of the tube body 1; and an anti-slip structure 2 is provided in the middle of the tube body 1.
[0033] Among them, the anti-slip structure 2 includes a spring piece 2-1-1; a spring piece movable groove 2-2 is provided on the middle side wall of the tube body 1; the spring piece 2-1 is located in the spring piece movable groove 2-2; the lower end of the spring piece 2-1 is a free end, and a clamp 2-3 is provided on the free end; the upper end of the spring piece 2-1 is fixed to the tube body 1 as a whole; and in normal state, the clamp 2-3 radially protrudes from the outer wall of the tube body 1.
[0034] Specifically, the spring movable groove 2-2 is in a strip shape.
[0035] When the adapter of this embodiment is in use, its tube body 1 is inserted into the test tube insertion hole 5-1 on the rotor 5, and its convex ring 1-1 limits the downward movement of the tube body 1 in the test tube insertion hole 5-1, and the clamping head 2-3 on the spring piece 2-1 radially protrudes from the outer side wall of the tube body 1 and is just clamped below the outer side of the lower end of the test tube insertion hole 5-1 of the rotor 5. The clamping head 2-3 will block and limit the upward movement of the tube body 1 in the test tube insertion hole 5-1.
[0036] Therefore, the tube body of the adapter is inserted into the test tube insertion hole 5-1 of the rotor and is restricted from moving up and down at the same time, preventing it from loosening upwards. This makes it safer to use under ultra-high-speed centrifugation conditions, prevents or reduces up and down vibrations, and avoids the risk of the adapter loosening from the rotor.
[0037] In addition, when removing, the clamp head 2-3 is pressed, and the spring sheet 2-1 is deformed to accommodate the clamp head 2-3 in the spring sheet movable groove 2-2. The clamp head 2-3 no longer protrudes radially from the outer wall of the tube body 1, and can then be pulled upward normally, which is simple to operate and very convenient.
[0038] Furthermore, the clamp head 2-3 has a front clamp surface 2-31 and a side bevel 2-32; the front clamp surface 2-31 is perpendicular to the center line of the tube body 1; the radial distance between the side bevel 2-32 and the center line of the tube body 1 gradually decreases in the direction away from the front clamp surface 2-31. Since the radial distance between the side bevel 2-32 and the center line of the tube body 1 gradually decreases in the direction away from the front clamp surface 2-31. When the tube body 1 is inserted downward into the test tube insertion hole 5-1 of the rotor 5, the clamp head 2-3 is guided and squeezed by the side bevel 2-32, forcing the spring piece 2-1-1 to deform and the clamp head 2-3 to enter the spring piece movable groove 2-2 to avoid the position, so that the clamp head 2-3 is forced to avoid the position without any obstruction during the process of the tube body 1 being inserted into the test tube insertion hole 5-1.
[0039] Preferably, the length of the spring piece 2-1-1 along the axial direction of the tube body 1 is 15-25 mm; the thickness of the spring piece 2-1-1 is 1.5-2 mm; and the width of the spring piece 2-1-1 is 5-8 mm.
[0040] Furthermore, the spring-element movable groove 2-2 radially penetrates the side wall of the tube body 1. In this way, the inside of the spring-element movable groove 2-2 is easy to disinfect and clean, and the growth of bacteria is reduced.
[0041] Furthermore, the whole is made of metal or plastic. The product can be produced in batches by one-time injection of a mold, and the cost is low.
[0042] Embodiment 2: This embodiment is basically the same as Embodiment 1, except that:
[0043] like Figure 9-10 As shown, in this embodiment, two anti-slip structures 2 are symmetrically arranged in the middle of the tube body 1. When the tube body 1 of the adapter is inserted into the test tube insertion hole 5-1 on the rotor 5 and is in place, the clamps 2-3 of the two anti-slip structures 2 will radially protrude from the outer wall of the tube body 1 at the same time and just clamp on both sides of the lower end of the test tube insertion hole 5-1 of the rotor 5, so that bilateral blocking is achieved through the two clamps 2-3, which can double the resistance and thus double the safety factor.
[0044] Embodiment 3: This embodiment is basically the same as Embodiment 1 or 2, except that:
[0045] like Fig.11 As shown, in this embodiment, the convex ring 1-1 also has an elastic pull ring 1-2. Specifically, the elastic pull ring 1-2 is set to be thinner, such as 1.5-2mm, and has elasticity and can be automatically reset. When the adapter is pulled out, the elastic pull ring 1-2 is tilted up to buckle the finger, and then pulled out, which is easy to operate and very labor-saving. In normal state, the elastic pull ring 1-2 is elastically reset to be flush with the upper surface of the convex ring 1-1.
[0046] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.
Claims
1. A centrifugal adapter, comprising a tube body (1), wherein a convex ring (1-1) is provided at the upper end of the tube body (1), characterized in that: An anti-slip structure (2) is provided in the middle of the tube body (1); The anti-drop structure (2) comprises a spring sheet (2-1); a spring sheet movable groove (2-2) is provided on the middle side wall of the tube body (1); the spring sheet (2-1) is located in the spring sheet movable groove (2-2); the lower end of the spring sheet (2-1) is a free end, and a clamp (2-3) is provided on the free end; the upper end of the spring sheet (2-1) is fixed to the tube body (1) as a whole; and in a normal state, the clamp (2-3) radially protrudes from the outer side wall of the tube body (1).
2. A centrifugal adapter according to claim 1, characterized in that: The clamping head (2-3) comprises a front clamping surface (2-31) and a side inclined surface (2-32); the front clamping surface (2-31) and the center line of the tube body (1) are perpendicular to each other; and the radial distance between the side inclined surface (2-32) and the center line of the tube body (1) gradually decreases in the direction away from the front clamping surface (2-31).
3. A centrifugal adapter according to claim 1, characterized in that: The length of the spring piece (2-1) along the axial direction of the tube body (1) is 15-25 mm; the thickness of the spring piece (2-1) is 1.5-2 mm; and the width of the spring piece (2-1) is 5-8 mm.
4. A centrifugal adapter according to claim 1, characterized in that: Two anti-slip structures (2) are symmetrically arranged in the middle of the tube body (1).
5. A centrifugal adapter according to claim 1, characterized in that: The spring sheet movable groove (2-2) radially penetrates the side wall of the tube body (1).
6. A centrifugal adapter according to claim 1, characterized in that: An elastic pull ring (1-2) is provided on the convex ring (1-1).
7. A centrifugal adapter according to any one of claims 1 to 6, characterized in that: The whole is made of metal or plastic.