CN112044608B - Laboratory centrifuge rotor balance locking device, centrifuge rotor and centrifuge - Google Patents
Laboratory centrifuge rotor balance locking device, centrifuge rotor and centrifuge Download PDFInfo
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- CN112044608B CN112044608B CN202011084361.0A CN202011084361A CN112044608B CN 112044608 B CN112044608 B CN 112044608B CN 202011084361 A CN202011084361 A CN 202011084361A CN 112044608 B CN112044608 B CN 112044608B
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- 230000000149 penetrating effect Effects 0.000 claims abstract description 4
- 230000003287 optical effect Effects 0.000 claims description 16
- 230000000903 blocking effect Effects 0.000 claims description 5
- 238000011084 recovery Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 8
- 230000009286 beneficial effect Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 240000005002 Erythronium dens canis Species 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 210000003781 tooth socket Anatomy 0.000 description 4
- 230000017105 transposition Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005119 centrifugation Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B9/00—Drives specially designed for centrifuges; Arrangement or disposition of transmission gearing; Suspending or balancing rotary bowls
- B04B9/14—Balancing rotary bowls ; Schrappers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
- B04B—CENTRIFUGES
- B04B5/00—Other centrifuges
- B04B5/04—Radial chamber apparatus for separating predominantly liquid mixtures, e.g. butyrometers
- B04B5/0407—Radial chamber apparatus for separating predominantly liquid mixtures, e.g. butyrometers for liquids contained in receptacles
Abstract
The invention discloses a balance locking device for a laboratory centrifuge rotor, which comprises a shell, wherein a balance positioning hole is formed in the shell, a balance motor shaft is arranged in the balance positioning hole in a penetrating manner, positioning convex teeth and positioning tooth grooves are formed on the outer side of the balance motor shaft and the inner side of the balance positioning hole, the balance motor shaft and the shell are used for realizing absolute balance, a locking component is arranged in the shell, when the locking component is positioned in a locking position, the axial movement of the balance motor shaft can be limited, and when the locking component is positioned in an unlocking position, the shell can be installed or detached, and a triggering component is used for controlling the locking component to switch between the locking position and the unlocking position.
Description
Technical Field
The invention relates to the technical field of laboratory centrifuges, in particular to a laboratory centrifuge rotor balance locking device, a centrifuge rotor and a centrifuge.
Background
Centrifuges are mainly used for separating components of different sizes and masses from a liquid sample, separating individual cells from the molecules, such centrifugation techniques are usually achieved by laboratory centrifuges comprising two rotating parts, one being the drive motor shaft associated with motor means for rotation, and the other being the rotor, mounted on the drive motor shaft mentioned above, for receiving a sample container in which the liquid sample to be centrifuged is provided, which conventionally requires not only special tools for mounting the rotor, but also ensuring the absolute balance of the rotor, otherwise causing the robot to be destroyed.
In practice, the balancing of the rotor is inconvenient and not very ergonomic, the current rotor is provided with grooves at the bottom of the centre, the drive motor shaft is provided with protrusions cooperating with the grooves, a relatively large force is usually required to be applied during assembly to obtain the displacement of these grooves, the alignment of the grooves is balanced, this force is only due to the ends of the fingers, and furthermore, the manipulation of these grooves requires precise positioning of the fingers, so that the operator has to verify their orientation before manipulating them, which is a certain difficulty.
At present, when a laboratory worker performs centrifugal machine operation, different samples are required to use different rotors, so that the centrifugal machine rotors are required to be replaced frequently, a special tool is required to replace the rotors, the operation of replacing the rotors is complex, sample leakage is easy to occur, and even the laboratory worker is injured.
Therefore, how to solve the problems of complicated and difficult operation of the centrifuge in the prior art, which requires a special tool to replace the rotor and to achieve absolute balance of the rotor, is a technical problem that needs to be solved by those skilled in the art.
Disclosure of Invention
The invention aims to provide a laboratory centrifuge rotor balance locking device, a centrifuge rotor and a centrifuge, which are used for solving the problems that in the prior art, a special tool is needed to be used when the centrifuge is replaced, and the operation of absolutely balancing the rotor is complicated and difficult.
The preferred technical solutions of the technical solutions provided by the present invention can produce a plurality of technical effects described below.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the invention provides a balance locking device for a rotor of a laboratory centrifuge, which comprises a shell, a balance motor shaft, a locking assembly and a triggering assembly, wherein:
the balance motor shaft is arranged in the balance positioning hole in a penetrating mode, one of the inner wall of the balance positioning hole and the outer wall of the motor shaft is provided with positioning convex teeth, the other is provided with positioning tooth grooves matched with the positioning convex teeth, the part of the balance motor shaft, located in the hollow area of the shell, is an optical axis, and the outer diameter of the optical axis is equal to the outer diameter of the tooth root of the positioning convex teeth of the balance motor shaft or the outer diameter of the groove bottom of the positioning tooth grooves;
the locking assembly is arranged in the shell and comprises two locking pieces which are symmetrically arranged on two sides of the balance motor shaft, the two locking pieces can be mutually close to or mutually far away from each other, when the two locking pieces are positioned in unlocking positions, the distance between the two locking pieces is larger than the outer diameter of the tooth tops of the positioning teeth or the outer diameter of the top positions of the grooves of the positioning tooth sockets of the balance motor shaft, and when the two locking pieces are positioned in locking positions, the distance between the two locking pieces is smaller than the outer diameter of the tooth tops of the positioning teeth or the outer diameter of the top positions of the grooves of the positioning tooth sockets of the balance motor shaft;
the trigger assembly is used for controlling the locking assembly to switch between a locking position and an unlocking position, when the trigger assembly is located at an empty position, the locking piece is located at the unlocking position, and when the trigger assembly is located at the triggering position, the locking piece is located at the locking position.
Preferably, a sliding connection structure is arranged between the two locking pieces and the inner wall of the shell or between the two locking pieces, a first elastic piece is arranged between the two locking pieces, and the sliding direction is along the direction in which the two locking pieces are close to or far from each other.
Preferably, the two sides that the retaining member kept away from each other all are provided with the arc protruding, the trigger assembly is including setting up rotatory lid at the casing top and setting up rotatory lid bottom just penetrates two trigger bars of casing inside, two the trigger bars are located two respectively the both sides that the retaining member kept away from each other rotate rotatory lid drives the trigger bar reaches the trigger position, two the trigger bar extrusion the arc protruding, two the retaining member is close to each other, reaches the locking position, first elastic component holds the power, reverse rotation rotatory lid, two the trigger bar returns to the empty position, first elastic component resumes deformation, promotes two the retaining member is kept away from each other, returns to the unlocking position, rotatory lid with be provided with between the casing top and stop the structure, when the structure is located the transposition, rotatory lid can drive the trigger bar is rotatory between trigger position and empty position, when the structure is located the transposition, can prevent rotatory lid, when the retaining structure is located the transposition, the structure is located the transposition and is located the locking position.
Preferably, the rotation stopping structure comprises a clamping hook arranged at the bottom of the rotating cover, a clamping groove arranged at the top of the shell and a second elastic piece arranged between the rotating cover and the shell, wherein the clamping groove comprises a rotating groove close to one side of the shell and a limiting groove perpendicular to the top of the shell, the bottom of the limiting groove is communicated with the rotating groove, the rotating cover is pressed downwards, the rotation stopping structure is located at a rotation position, the bottom of the clamping hook is located in the rotating groove, the rotating cover is rotatable, the second elastic piece stores force, when the bottom of the clamping hook is aligned with the limiting groove, the rotating cover is loosened, the second elastic piece is restored to deform and pushes the rotating cover to move upwards, the rotating hook is clamped into the limiting groove, and the rotation stopping structure is located at the rotation stopping position.
Preferably, the first elastic member and the second elastic member are both springs.
Preferably, two ends of one side of the locking piece, which is close to each other, are provided with sliding holes, a sliding rod is arranged between the two opposite sliding holes, and the spring is sleeved on the outer side of the sliding rod.
Preferably, blocking rods are arranged at two end positions of one side, away from each other, of the locking pieces in the shell.
Preferably, the thickness of the locking member is equal to the length of the optical axis.
A second aspect of the invention provides a centrifuge rotor comprising a rotor body and a laboratory centrifuge rotor balance lock device as described in any of the preceding claims.
A third aspect of the present invention provides a centrifuge comprising a centrifuge body and a centrifuge rotor as described above.
The invention provides a rotor balance locking device of a laboratory centrifuge, which has the beneficial effects that:
the invention provides a rotor balance locking device of a laboratory centrifuge, which comprises a shell, a balance motor shaft, a locking component and a triggering component, wherein the shell is hollow, balance positioning holes are formed in the shell at the top and the bottom of a hollow area, the balance positioning holes at the bottom of the hollow area penetrate through the shell, the top end of the balance motor shaft is penetrated in the balance positioning holes, one of the inner side wall of the balance positioning holes and the outer side wall of the motor shaft is provided with positioning convex teeth, the other is provided with positioning tooth grooves matched with the positioning convex teeth, the part of the balance motor shaft in the hollow area in the shell is an optical axis, and the outer diameter of the optical axis is equal to the outer diameter of the tooth root of the positioning convex teeth of the balance motor shaft or the outer diameter of the groove bottom of the positioning tooth grooves; the locking assembly is arranged in a hollow area in the shell and comprises two locking pieces which are symmetrically arranged at two sides of the balance motor shaft, the two locking pieces can move towards directions which are close to each other or far away from each other, when the two locking pieces are positioned in unlocking positions, the distance between the two locking pieces is larger than the outer diameter of the tooth tops of the positioning convex teeth or the outer diameter of the tops of the grooves of the positioning tooth grooves of the balance motor shaft, and when the two locking pieces are positioned in locking positions, the distance between the two locking pieces is smaller than the outer diameter of the tooth tops of the positioning convex teeth or the outer diameter of the tops of the grooves of the positioning tooth grooves of the balance motor shaft; the trigger component is used for controlling the locking component to switch between a locking position and an unlocking position, when the trigger component is positioned at an empty position, the locking piece is positioned at an unlocking position, and when the trigger component is positioned at the trigger position, the locking piece is positioned at the locking position; the operation process of the laboratory centrifuge rotor balance locking device provided by the application is as follows: the trigger assembly is operated to be positioned at an empty position, the locking piece is positioned at an unlocking position, the balance motor shaft can penetrate into the shell from the balance positioning hole at the bottom of the shell, after passing through the area between the two locking pieces, the top end of the balance motor shaft is inserted into the balance positioning hole at the top of the shell, and then the trigger assembly is operated to be positioned at a trigger position, and the locking piece reaches the locking position to prevent the balance motor shaft from moving along the axial direction of the shell; in this application owing to be provided with location dogtooth and location tooth's socket between balance motor shaft and the balance locating hole, make the balance motor shaft insert and be balanced state after the balance locating hole, convenient operation is quick, can accomplish the operation to the retaining member through triggering the subassembly moreover, makes it switch between locking position and unblock position, need not specialized tool.
The second aspect of the invention provides a centrifuge rotor, which has the beneficial effects that:
the centrifugal rotor comprises a rotor main body and the laboratory centrifugal rotor balance locking device, and has the same beneficial effects as the laboratory centrifugal rotor balance locking device because the laboratory centrifugal rotor balance locking device disclosed by the invention is used, and the effects of automatic balance and quick replacement under the condition of not using a special tool can be realized.
The centrifugal machine provided by the third aspect of the invention has the beneficial effects that:
the centrifugal machine provided by the invention comprises the centrifugal machine main body and the centrifugal machine rotor, and has the same beneficial effects as the centrifugal machine rotor due to the use of the centrifugal machine rotor disclosed by the invention, and the effects of automatic balancing of the rotor and rapid replacement without using special tools can be realized.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a diagram of the external construction of a rotor balance lock of a laboratory centrifuge according to an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a laboratory centrifuge rotor balance lock-up device shown in an embodiment of the present invention;
FIG. 3 is a block diagram of a locking assembly, trigger assembly and positioning motor shaft shown in an embodiment of the present invention;
FIG. 4 is a diagram illustrating the internal structure of a rotation stopping structure according to an embodiment of the present invention;
FIG. 5 is a diagram illustrating the internal structure of a rotor balance lock of a laboratory centrifuge according to an embodiment of the present invention;
FIG. 6 is a diagram of the balance motor shaft illustrating an embodiment of the present invention;
FIG. 7 is a view showing the construction of the outside of the housing according to the embodiment of the present invention;
FIG. 8 is a view showing the construction of the inside of the housing according to the embodiment of the present invention;
FIG. 9 is a block diagram of a locking assembly shown in an embodiment of the present invention;
FIG. 10 is a diagram illustrating a first construction of a rotor of a conventional centrifuge in accordance with an embodiment of the present invention;
FIG. 11 is a diagram illustrating a second prior art centrifuge rotor configuration in accordance with an embodiment of the present invention.
In the figure: 1. a housing; 2. balancing a motor shaft; 3. balance positioning holes; 4. positioning the convex teeth; 5. positioning tooth grooves; 6. an optical axis; 7. a locking member; 8. a first elastic member; 10. a slide bar; 11. arc-shaped bulges; 12. a rotary cover; 13. a trigger lever; 14. an arc-shaped through hole; 15. a hook; 16. a second elastic member; 17. a rotary groove; 18. a limit groove; 19. a blocking lever; 20. an arc chute.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, based on the examples herein, which are within the scope of the invention as defined by the claims, will be within the scope of the invention as defined by the claims.
Hereinafter, embodiments will be described with reference to the drawings. Furthermore, the embodiments shown below do not limit the summary of the invention described in the claims. The whole contents of the constitution shown in the following examples are not limited to the solution of the invention described in the claims.
Referring to fig. 1 to 11, a first aspect of the present invention discloses a balancing and locking device for a laboratory centrifuge rotor, comprising a housing 1, a balancing motor shaft 2, a locking assembly and a triggering assembly, wherein the interior of the housing 1 is of a hollow structure, the housing 1 positioned at the top and the bottom of the hollow structure is provided with a balancing and positioning hole 3 with a collinear axis, the balancing and positioning hole 3 positioned at the bottom of the hollow region penetrates through the housing 1, the top end of the balancing motor shaft 2 is penetrated in the balancing and positioning hole 3, one of the inner side wall of the balancing and positioning hole 3 and the outer side wall of the motor shaft is provided with a positioning convex tooth 4, the other is provided with a positioning tooth socket 5 matched with the positioning convex tooth 4, the part of the balancing motor shaft 2 positioned in the hollow region inside the housing 1 is an optical axis 6, and the outer diameter of the optical axis 6 is equal to the outer diameter of the tooth root of the positioning convex tooth 4 of the balancing motor shaft 2 or the outer diameter of the groove bottom of the positioning tooth socket 5; the locking assembly is arranged at a hollow position in the shell 1 and comprises two locking pieces 7 symmetrically arranged at two sides of the balance motor shaft 2, the two locking pieces 7 can move towards directions close to each other or away from each other, when the two locking pieces 7 are positioned in unlocking positions, the distance between the two locking pieces 7 is larger than the outer diameter of the tooth tops of the positioning convex teeth 4 or the outer diameter of the top positions of the grooves of the positioning tooth grooves 5 of the balance motor shaft 2, and when the two locking pieces 7 are positioned in locking positions, the distance between the two locking pieces 7 is smaller than the outer diameter of the tooth tops of the positioning convex teeth 4 or the outer diameter of the tops of the grooves of the positioning tooth grooves 5 of the balance motor shaft 2; the trigger component is used for controlling the locking component to switch between a locking position and an unlocking position, when the trigger component is positioned at an empty position, the locking piece 7 is positioned at an unlocking position, and when the trigger component is positioned at the trigger position, the locking piece 7 is positioned at the locking position; the application provides a balancing and locking device for a rotor of a laboratory centrifuge, which comprises the following operation processes: operating the trigger assembly to enable the trigger assembly to be in an empty position, enabling the locking pieces 7 to be located at Jie Suowei, enabling the balance motor shaft 2 to penetrate into the shell 1 through the balance positioning holes 3 at the bottom of the shell 1, enabling the top end of the balance motor shaft 2 to be inserted into the balance positioning holes 3 at the top of the shell 1 after passing through the area between the two locking pieces 7, and then operating the trigger assembly to enable the trigger assembly to be located at the trigger position, enabling the locking pieces 7 to reach the locking positions when the trigger assembly is located at the trigger position, and preventing the balance motor shaft 2 from moving along the axial direction of the shell 1; in this application, owing to be provided with location dogtooth 4 and location tooth's socket 5 between balanced motor shaft 2 and the balanced locating hole 3, make balanced motor shaft 2 insert and be balanced state after the balanced locating hole 3, convenient operation is quick, can accomplish the operation to retaining member 7 through triggering the subassembly moreover, makes it switch between locking position and unblock position, need not specialized tool.
In practice, the above-mentioned housing 1 may be a cylindrical housing 1, the interior is hollow, the hollow portion is also in a cylindrical structure, balance positioning holes 3 are provided at the top of the housing 1 and the bottom of the housing 1, the balance positioning holes 3 at the bottom penetrate the housing 1, or the balance positioning holes 3 at the bottom and the top penetrate the housing 1, the balance positioning holes 3 are all provided at the center position of the housing 1, the axis of the balance positioning holes 3 coincides with the axis of the housing 1, a plurality of positioning teeth 4 may be provided on the inner wall of the balance positioning holes 3, the plurality of positioning teeth 4 are uniformly provided along the circumferential direction of the balance positioning holes 3, and each of the positioning teeth 4 extends in the radial direction of the balance positioning holes 3, positioning tooth grooves 5 engaged with the positioning protrusions are provided at the positions corresponding to the balance positioning holes 3 on the outer side of the balance motor shaft 2, the positions corresponding to the hollow portion of the housing 1 are optical axes 6, the outer diameter of the optical axis 6 is equal to the outer diameter of the bottom of the positioning tooth groove 5, the locking piece 7 can be in an omega-shaped structure, the groove part on the inner side of the omega-shaped structure can be a rectangular groove, the width of the rectangular groove is larger than or equal to the outer diameter of the tooth crest of the positioning convex tooth 4 on the balance positioning shaft, the depth of the rectangular groove is smaller than the radius of the optical axis 6, when the two locking pieces 7 are positioned in unlocking positions, the distance between the depth directions of the two rectangular grooves is larger than the outer diameter of the tooth crest of the positioning convex tooth 4, at the moment, the top end of the balance motor shaft 2 can be inserted into the balance positioning hole 3 from the bottom of the shell 1 upwards, the insertion of the balance motor shaft 2 cannot be blocked due to the locking piece 7 positioned in unlocking positions, the top end of the balance motor shaft 2 is inserted into the balance positioning hole 3 on the top of the shell 1 after passing through the positions of the locking piece 7, the absolute balance state is just after inserting, when two retaining members 7 are located the locking position, and the distance between two rectangular groove depth directions is less than the external diameter of the tooth top department of location dogtooth 4, and retaining member 7 card is in optical axis 6 department this moment, owing to there is location dogtooth 4's existence, can restrict the axial displacement of balanced motor shaft 2 along casing 1, accomplishes the locking action, and retaining member 7 switches between locking position and unblock position and is controlled by the trigger subassembly, and the concrete structure of trigger subassembly is described below.
In the preferred embodiment, the two locking members 7 move in the directions approaching or separating from each other to inevitably slide, the two locking members 7 can slide with the inner wall of the hollow portion of the housing 1 by means of a sliding connection structure, or the two locking members 7 can be connected by means of sliding connection by means of a sliding connection structure, a first elastic member 8 can be arranged between the two locking members 7, the first elastic member 8 can be a spring or a disc spring, etc., when the trigger assembly is located at the trigger position, the two locking members 7 are located at locking positions approaching to each other, the spring is pressed and accumulated at the moment, and when the trigger assembly is located at the idle position, the spring pushes the two locking members 7 away in the directions separating from each other under the elastic action of the spring, so that the two locking members are far away from each other and return to the unlocking position.
Specifically, the sliding connection structure may be disposed between two locking members 7, sliding holes along the sliding direction may be disposed at two ends of one side of the two locking members 7, the sliding holes may be blind holes, a sliding rod 10 is disposed in two sliding holes at one end of the sliding holes, two ends of the sliding rod 10 are inserted into the sliding holes, and the spring may be sleeved outside the sliding rod 10, and two ends of the spring are in contact with the locking members 7; or the sliding connection structure can be arranged between the locking pieces 7 and the shell 1, a linear chute can be arranged on the surface, which is in contact with the locking pieces 7, of the shell 1, a sliding protrusion is arranged at the position, which corresponds to the linear chute, of the locking pieces 7, the sliding protrusion and the chute are matched to slide, and a spring can be arranged between the two locking pieces 7 or between the locking pieces 7 and the shell 1.
Preferably, the two locking pieces 7 mentioned above may be in an Ω -shaped structure, the outer side is in an arc-shaped structure protruding outwards, namely an arc-shaped protrusion 11, the trigger assembly may include a rotating cover 12 disposed at the top of the housing 1 and two trigger rods 13 disposed at the bottom of the rotating cover 12, two arc-shaped through holes 14 are disposed at positions corresponding to the two trigger rods 13 at the top of the housing 1, an arc-shaped chute 20 is disposed at positions corresponding to the trigger rods 13 at the bottom of the hollow region of the housing 1, the bottoms of the trigger rods 13 are inserted into the arc-shaped chute 20, one end of the trigger rods 13 is fixedly connected with the rotating cover 12, the other end penetrates into the hollow part inside the housing 1 through the arc-shaped through holes 14, the trigger rods 13 can rotate in the arc-shaped through holes 14, the two trigger rods 13 are respectively disposed at two sides of the two locking pieces 7, when the trigger rods 13 are in the empty setting, the trigger rods 13 are in contact with the bottoms of the arc-shaped protrusions 11, when the trigger rods 13 are in the empty setting, the two trigger rods 13 are driven to rotate, the two trigger rods 13 are gradually move from the two trigger rods 11 to the top of the 13 to the 13, the two trigger rods are gradually move to the opposite directions, the two trigger rods 11 reach the top of the 13, and the 13 are gradually move to the opposite directions, and the two trigger rods are in the opposite directions, and the 13 reach the 13, and the 13 are moved to the opposite directions, and move to the top 13, and reach the opposite directions, and the 13, and the opposite directions, and the 13 and move to the trigger rod 13 and move to the trigger assembly and 11, and move to the trigger assembly through the trigger assembly and move to the trigger assembly and move. When the trigger lever 13 moves to the bottom of the arc-shaped protrusion 11, the trigger lever 13 returns to the empty position, the locking member 7 returns to the unlocking position, and in order to fix the trigger lever 13 when rotating to the trigger position, a rotation stopping structure may be disposed between the rotary cover 12 and the top of the housing 1, when the rotation stopping structure is located at the rotation position, the rotary cover 12 may drive the trigger lever 13 to rotate between the trigger position and the empty position, when the rotation stopping structure is located at the rotation stopping position, the rotation of the rotary cover 12 may be prevented, and when the locking member 7 is located at the locking position, the rotation stopping structure is located at the rotation stopping position.
Specifically, the above-mentioned rotation stopping structure may include a hook 15 disposed at the bottom of the rotary cover 12, a slot disposed at the top of the housing 1, and a second elastic member 16 disposed between the rotary cover 12 and the housing 1, where the hook 15 may be an L-shaped hook, the L-shaped hook includes a vertical portion and a horizontal portion, one end of the vertical portion is fixedly connected with the rotary cover 12, the other end of the vertical portion is connected with one end of the horizontal portion, the other end of the horizontal portion extends horizontally in a direction away from the center of the rotary cover 12, the slot includes two portions, one portion is a rotary slot 17 near one side of the housing 1, the other portion is a vertical limiting slot 18 with a bottom communicating with the rotary slot 17, the rotary slot 17 may be an annular slot, the bottom radius of the annular slot is greater than or equal to the radius of rotation of the overhanging end of the horizontal portion of the L-shaped hook, the top radius of the annular slot is smaller than the radius of the overhanging end of the horizontal portion of the L-shaped hook, when the horizontal part of the L-shaped hook is positioned in the annular groove, the horizontal part can only rotate in the annular groove and can not move along the axial direction of the vertical part of the L-shaped hook, the limit groove 18 is a straight groove, the extending direction is vertical to the top of the shell 1, the bottom of the limit groove 18 is communicated with the annular groove, when the horizontal part is positioned in the limit groove 18, the horizontal part can only slide up and down along the limit groove 18 and can not rotate around the axis of the vertical part, the second elastic piece 16 can be a spring, when the rotary cover 12 is required to rotate, the rotary cover 12 is pressed downwards to enable the horizontal part of the L-shaped hook to be positioned in the annular groove, at the moment, the rotation stopping structure is positioned at the rotation position, the rotary cover 12 can rotate, the spring is pressed by the pressure, when the rotary cover 12 is required to be locked, the horizontal part is rotated to a position aligned with the limit groove 18, the rotary cover 12 is released, the pressed spring releases elasticity, the rotary cover 12 is pushed upwards, and the horizontal part slides into the limit groove 18, the rotation of the rotary cover 12 may be restricted at this time.
Preferably, blocking rods 19 can be arranged at two ends of one side, away from each other, of the two locking pieces 7 in the shell 1, when the locking pieces 7 are located in the unlocking position, the outer sides of the two locking pieces 7 are in contact with the blocking rods 19, and a spring located between the two locking pieces 7 can be in a compressed state, so that the two locking pieces 7 can be prevented from being uncontrollably moved in opposite directions for a large distance, and the spring can be always in the compressed state, so that the two locking pieces 7 can reliably reach the unlocking position.
To prevent longitudinal vibrations from occurring between the housing 1 and the positioning motor shaft during use, the thickness of the locking member 7 is equal to the length of the optical axis 6, and when the locking member 7 is in the locked position, both the top and bottom of the locking member 7 are in close contact with the positioning motor shaft.
The centrifugal rotor disclosed in the second aspect of the invention comprises a rotor main body and the laboratory centrifugal rotor balance locking device, and the laboratory centrifugal rotor balance locking device disclosed in the second aspect of the invention has the same beneficial effects as the laboratory centrifugal rotor balance locking device because the laboratory centrifugal rotor balance locking device disclosed in the second aspect of the invention is used, and the effects of automatic balance and quick replacement without using special tools can be realized.
The centrifugal machine disclosed by the third aspect of the invention comprises a centrifugal machine main body and the centrifugal machine rotor, and the centrifugal machine has the same beneficial effects as the centrifugal machine rotor because the centrifugal machine rotor disclosed by the invention is used, so that the effects of automatic balancing of the rotor and quick replacement without using special tools can be realized.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. The utility model provides a laboratory centrifuge rotor balance locking device which characterized in that, includes casing (1), balance motor shaft (2), locking subassembly and trigger assembly, wherein:
the balance motor is characterized in that the inside of the shell (1) is hollow, balance positioning holes (3) with collinear axes are formed in the top and the bottom of a hollow area, the balance positioning holes (3) located at the bottom of the hollow area penetrate through the shell (1), a balance motor shaft (2) is arranged in the balance positioning holes (3) in a penetrating mode, one of the inner wall of the balance positioning holes (3) and the outer wall of the motor shaft is provided with positioning teeth (4), the other one of the inner wall of the balance positioning holes and the outer wall of the motor shaft is provided with positioning tooth grooves (5) matched with the positioning teeth (4), the part of the balance motor shaft (2) located in the hollow area of the shell (1) is an optical axis (6), and the outer diameter of the optical axis (6) is equal to the outer diameter of the tooth root of the positioning teeth (4) of the balance motor shaft (2) or the outer diameter of the bottom of a groove of the positioning tooth groove (5);
the locking assembly is arranged in a hollow area of the shell (1) and comprises two locking pieces (7) symmetrically arranged on two sides of the balance motor shaft (2), the two locking pieces (7) can be mutually close to or mutually far away from each other, when the two locking pieces (7) are positioned in an unlocking position, the distance between the two locking pieces (7) is larger than the outer diameter of the tooth tops of the positioning convex teeth (4) or the outer diameter of the positions of the tops of the grooves of the positioning tooth grooves (5) of the balance motor shaft (2), and when the two locking pieces (7) are positioned in a locking position, the distance between the two locking pieces (7) is smaller than the outer diameter of the tooth tops of the positioning convex teeth (4) or the outer diameter of the positions of the tops of the grooves of the positioning tooth grooves (5) of the balance motor shaft (2);
the trigger assembly is used for controlling the locking assembly to switch between the locking position and the unlocking position, when the trigger assembly is positioned at the empty position, the locking piece (7) is positioned at the unlocking position, and when the trigger assembly is positioned at the triggering position, the locking piece (7) is positioned at the locking position;
a sliding connection structure is arranged between the two locking pieces (7) and the inner wall of the shell (1) or between the two locking pieces (7), a first elastic piece (8) is arranged between the two locking pieces (7), and the sliding direction is along the direction in which the two locking pieces (7) are close to each other or far from each other;
the two sides of the two locking pieces (7) which are far away from each other are respectively provided with an arc-shaped bulge (11), the triggering assembly comprises a rotating cover (12) arranged at the top of the shell (1) and two triggering rods (13) arranged at the bottom of the rotating cover (12) and penetrating into the shell (1), the two triggering rods (13) are respectively positioned at the two sides of the two locking pieces (7) which are far away from each other, the rotating cover (12) drives the triggering rods (13) to reach a triggering position, the two triggering rods (13) squeeze the arc-shaped bulge (11), the two locking pieces (7) are mutually close to each other to reach a locking position, the first elastic piece (8) stores force, reversely rotates the rotating cover (12), the two triggering rods (13) return to an empty position, the first elastic piece (8) is deformed in a recovery manner, the two locking pieces (7) are pushed to be far away from each other and return to an unlocking position, a rotating structure is arranged between the rotating cover (12) and the top of the shell (1), and when the rotating structure is positioned at the rotating cover (12) and the rotating structure is in the locking position, and the rotating structure is stopped when the rotating cover (12) is in the rotating structure is in the empty position, and the rotating structure is stopped when the rotating cover (12) is in the rotating structure is at the locking position;
the anti-rotation structure comprises a clamping hook (15) arranged at the bottom of the rotary cover (12), a clamping groove arranged at the top of the shell (1) and a second elastic piece (16) arranged between the rotary cover (12) and the shell (1), wherein the clamping groove comprises a rotary groove (17) close to one side of the shell (1) and a limiting groove (18) perpendicular to the top of the shell (1), the bottom of the limiting groove (18) is communicated with the rotary groove (17), the rotary cover (12) is pressed downwards, the anti-rotation structure is positioned in a rotation position, the bottom of the clamping hook (15) is positioned in the rotary groove (17), the rotary cover (12) is rotatable, the second elastic piece (16) stores force, when the bottom of the clamping hook (15) is aligned with the limiting groove (18), the rotary cover (12) is loosened, the second elastic piece (16) is restored to deform, the rotary cover (12) is pushed to move upwards, the rotary hook is clamped into the rotary groove (18), and the anti-rotation structure is positioned in the rotation position;
both ends of the shell (1) which are positioned at one side of the two locking pieces (7) which are far away from each other are provided with blocking rods (19).
2. The laboratory centrifuge rotor balance locking device according to claim 1, characterized in that the first elastic element (8) and the second elastic element (16) are both springs.
3. The balance locking device of the laboratory centrifuge rotor according to claim 2, wherein sliding holes are formed at both ends of one side of the two locking pieces (7) which are close to each other, a sliding rod (10) is arranged between the two opposite sliding holes, and the spring is sleeved outside the sliding rod (10).
4. Laboratory centrifuge rotor balance locking device according to claim 1, characterized in that the thickness of the locking piece (7) is equal to the length of the optical axis (6).
5. A centrifuge rotor comprising a rotor body and the laboratory centrifuge rotor balance lock device of any one of claims 1 to 4.
6. A centrifuge comprising a centrifuge body and the centrifuge rotor of claim 5.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011084361.0A CN112044608B (en) | 2020-10-12 | 2020-10-12 | Laboratory centrifuge rotor balance locking device, centrifuge rotor and centrifuge |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011084361.0A CN112044608B (en) | 2020-10-12 | 2020-10-12 | Laboratory centrifuge rotor balance locking device, centrifuge rotor and centrifuge |
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| CN112044608A CN112044608A (en) | 2020-12-08 |
| CN112044608B true CN112044608B (en) | 2024-04-16 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0195321A2 (en) * | 1985-03-19 | 1986-09-24 | Abbott Laboratories | Automatic centrifugal balancing mechanism |
| CN1041891A (en) * | 1988-07-18 | 1990-05-09 | 莫斯科生物物理仪器科学生产联合公司 | Centrifuge |
| JP2016002512A (en) * | 2014-06-16 | 2016-01-12 | 株式会社久保田製作所 | Centrifugal separator and rotor body |
| CN106111353A (en) * | 2015-04-02 | 2016-11-16 | 希格玛实验室离心机有限公司 | laboratory centrifuge and operation method thereof |
| CN106856657A (en) * | 2014-08-29 | 2017-06-16 | 安德烈斯黑蒂希股份有限公司 | The centrifuge of quick closedown |
| CN106902995A (en) * | 2015-08-20 | 2017-06-30 | 安德烈斯黑蒂希股份有限公司 | Centrifuge rotor |
| CN212524576U (en) * | 2020-10-12 | 2021-02-12 | 武汉成名仪器有限公司 | Balance locking device for rotor of laboratory centrifuge, centrifuge rotor and centrifuge |
-
2020
- 2020-10-12 CN CN202011084361.0A patent/CN112044608B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0195321A2 (en) * | 1985-03-19 | 1986-09-24 | Abbott Laboratories | Automatic centrifugal balancing mechanism |
| CN1041891A (en) * | 1988-07-18 | 1990-05-09 | 莫斯科生物物理仪器科学生产联合公司 | Centrifuge |
| JP2016002512A (en) * | 2014-06-16 | 2016-01-12 | 株式会社久保田製作所 | Centrifugal separator and rotor body |
| CN106856657A (en) * | 2014-08-29 | 2017-06-16 | 安德烈斯黑蒂希股份有限公司 | The centrifuge of quick closedown |
| CN106111353A (en) * | 2015-04-02 | 2016-11-16 | 希格玛实验室离心机有限公司 | laboratory centrifuge and operation method thereof |
| CN106902995A (en) * | 2015-08-20 | 2017-06-30 | 安德烈斯黑蒂希股份有限公司 | Centrifuge rotor |
| CN212524576U (en) * | 2020-10-12 | 2021-02-12 | 武汉成名仪器有限公司 | Balance locking device for rotor of laboratory centrifuge, centrifuge rotor and centrifuge |
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| Publication number | Publication date |
|---|---|
| CN112044608A (en) | 2020-12-08 |
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