32 results about "Laboratory centrifuge" patented technology

The utility model relates to the technical field of sample detection, in particular to a sample separation device for human serum kynurenine substance detection, which comprises a laboratory centrifuge and a fixing mechanism, the fixing mechanism comprises a mounting seat fixedly connected to an output shaft of the laboratory centrifuge, the top of the mounting seat is provided with an insertion groove and a positioning cavity, and the insertion groove is communicated with the positioning cavity. A connecting block is inserted into the positioning cavity; the centrifugal test tube can be locked in all directions by matching the insertion grooves with the positioning blocks, so that the centrifugal test tube can be more stably centrifuged, and the centrifugal test tube cannot be extruded by adopting a contact positioning mode, so that the probability that the centrifugal test tube is extruded is effectively reduced, and the effect of protecting the centrifugal test tube is achieved; in addition, the detection personnel can complete the positioning operation of all the centrifugal test tubes only through one-step insertion operation, so that the burden of fixing the centrifugal test tubes by the detection personnel can be reduced, and the working intensity of the detection personnel is also reduced.

A flexible drive shaft (10) for transmitting torque from a motor (4) to a high-speed rotor (2), particularly for a laboratory centrifuge (1), wherein the material of the drive shaft (10) has a defined yield strength and a defined modulus of elasticity. To create a new drive unit, for example for a laboratory centrifuge, that retains the necessary flexibility at critical speeds but exhibits higher strength with respect to bending stresses, it is proposed that a material be used for the drive shaft (10) in which the yield strength of the material is expressed in N / mm². 2 divided by the material's modulus of elasticity in N / mm 2 takes on a value > 0.0045.

The application relates to a centrifuge, in particular a laboratory centrifuge (1; 21) having a rotor (7) inside the centrifuge housing (3) for receiving and centrifuging the centrifuged material. The centrifuge housing (3) has a top side, a bottom side, a front side and a rear side. The centrifuge has an electronic unit (5) with a plurality of electronic components for implementing electronic functions for the operation of the centrifuge. The centrifuge is designed such that the electronics unit (5) can be removed from the centrifuge housing (3) from the front side.

The invention relates to the technical field of online detection of experimental instruments, in particular to an automatic detection method and system for a laboratory centrifugal machine component, and the method specifically comprises the steps: collecting centrifugal cavity data of a centrifugal machine in the whole working process in real time, calculating to obtain a centrifugal comprehensive risk value, and obtaining actual rotating speed data of the centrifugal machine in a full-load stage; calculating a centrifugal machine rotating speed state evaluation factor; obtaining actual temperature data in a centrifugal cavity; calculating a centrifugal machine temperature state evaluation factor; carrying out fusion evaluation on a centrifugal mass balance coefficient of the centrifugal machine, and carrying out fault mode identification on the centrifugal machine according to the centrifugal risk value and the centrifugal mass balance coefficient. And the fault processing suggestions of the centrifugal machine are output in a targeted manner according to different fault modes of the centrifugal machine. The problems that in the prior art, the automatic detection range of the centrifugal machine is limited, and faults of the centrifugal machine are difficult to detect are solved, meanwhile, fault modes and operation suggestions are output in time, followed guidelines are provided, and the operation risk is reduced.

The invention relates to a laboratory centrifuge rotor (1). The laboratory centrifuge rotor (1) has a rotor arm (4) with an integrally formed swing-out chamber pin (6). A swing-out chamber (8) is pivotably mounted on the swing-out chamber pin (6). According to the invention, a stress relief notch (12) is provided in the transition area between the swing-out chamber pin (6) and the rotor arm (4). This stress relief notch (12) reduces the amount of material required and advantageously influences the stress distribution, thereby increasing the strength.

The application relates to the technical field of sewage treatment experiment equipment, and provides a sludge dewatering experiment device for simulating a horizontal screw centrifuge, which comprises a pipe body assembly with a specific pipe cavity; an extrusion piston assembly is slidably arranged in the pipe cavity and divides the pipe cavity into a sludge storage area and a moisture storage area, and the outer periphery of the extrusion piston assembly is in sealing sliding fit with the inner wall of the pipe body assembly; a flow guide channel is arranged on the extrusion piston, the inlet end of the flow guide channel faces the sludge storage area, and the outlet end of the flow guide channel faces the moisture storage area; a filter is arranged at the inlet end of the flow guide channel; a one-way flow guide piece is arranged at the outlet end of the flow guide channel and is configured to open the flow guide channel when the fluid pressure of the sludge storage area is greater than that of the moisture storage area and to cut off the flow guide channel when the fluid pressure of the moisture storage area is greater than that of the sludge storage area. The application accurately simulates the centrifugal and extrusion coupling dewatering mechanism of the horizontal screw centrifuge, and the structure is simple and suitable for a conventional laboratory centrifuge.

The utility model provides an anti-deformation laboratory centrifuge tube under a high-speed rotation working condition, which comprises a centrifuge tube body, a plurality of side wall support rings are fixedly arranged on the side surface of the centrifuge tube body, and the adjacent side wall support rings are horizontally arranged. The centrifugal tube has the advantages that the side wall supporting rings are arranged on the side face of the centrifugal tube body, so that in the centrifugal process of the centrifugal tube, the side wall supporting rings can enhance the pressure resistance of the side face of the centrifugal tube, and when liquid exerts pressure on the side face of the tube body, the supporting rings can effectively resist the pressure; meanwhile, the supporting ring can also play a role in positioning, so that the centrifugal tube is more stable in the centrifugal tube rack, and the displacement in the centrifugal process is reduced; in addition, the centrifugal tube with the base can be independently placed on the experiment table without the help of external force or a centrifugal tube rack, so that the experiment space is saved, and the operation of experimenters is also facilitated.

Locking mechanism for a lid of a rotor of a centrifuge, wherein the locking mechanism secures the lid on a rotor body in an axial direction, wherein the locking mechanism has at least one locking member slidable in a radial direction within a locking section of the lid, wherein the at least one locking member has a radially outward protruding locking portion in respect to the rotor body, wherein the locking portion is engageably connectable to a recess in the rotor body and rotor for a laboratory centrifuge with such a locking mechanism.

The invention relates to a centrifuge, in particular a laboratory centrifuge (1; 21), which has a rotor (7) inside a centrifuge housing (3) for receiving and centrifuging material to be centrifuged, wherein the centrifuge housing (3) has a top, a bottom, a front and a back, and wherein the centrifuge has an electronic unit (5) with a plurality of electronic components for implementing electronic functions for operating the centrifuge. The centrifuge is designed such that the electronic unit (5) can be removed from the front of the centrifuge housing (3).

The invention discloses a pathological experiment centrifugal machine, and particularly relates to the technical field of centrifugal machines, the pathological experiment centrifugal machine comprises a centrifugal machine box, a box cover is rotatably mounted at the top of the centrifugal machine box through a hinge, a centrifugal machining area is formed in the centrifugal machine box, a quick release unit is mounted in the centrifugal machining area, and a centrifugal unit is correspondingly mounted on the quick release unit; a plurality of clamping units are uniformly distributed on the centrifugal unit, and the clamping units are used for clamping and fixing the test tubes at different inclination angles. The safety and stability of the centrifugal process are guaranteed by means of the limiting part in the centrifugal process, meanwhile, the test tubes are adjusted to be at different inclination angles on the centrifugal disc under the cooperation of the clamping unit, the test tubes can be centrifuged at different inclination angles, the flexibility is high, the test tubes can be adjusted and used according to different working environments, and the practicability is high. And under the assistance of the quick disassembly unit, the centrifugal unit can be quickly taken out from the centrifugal machine box, and subsequent disassembly and maintenance are facilitated.

The present invention relates to a rotor assembly equipped with a cover, intended to equip laboratory apparatus of the centrifuge type, mainly with a vertical rotation axis, characterized in that the rotor is crossed from one side to the other by an axial orifice and offers no possibility of connection with the drive motor shaft of the centrifuge. A lock assembly is associated with this rotor, comprising in particular a part placed at the interface between the rotor and the drive motor shaft, having external shapes capable of cooperating in rotation with said rotor and internal shapes capable of cooperating in rotation with said drive motor shaft. The lock assembly also comprises means of fixing with the rotor, means of fixing with the motor shaft and possibly a sealed cover.The present invention also comprises the centrifuge equipped with this rotor, equipped with means for recognizing whether said rotor is correctly locked and not allowing the centrifugation cycle to start if so. Figure for abstract: Figure 2.

1. Name of the design product: Centrifugal separator. 2. Use of the design product: For the separation of substances in a laboratory. 3. Key design feature of this design product: Its shape. 4. Figure or photograph that best illustrates the key design feature: Perspective view in Figure 4.1. 4.1) Perspective view; 4.2) Front view; 4.3) Left side view; 4.4) Right side view; 4.5) Rear view; 4.6) Top view; 4.7) Bottom view

The present invention is a means for securing the translational locking of a rotor on a drive shaft of a centrifuge, comprising at least one part having the characteristic of moving simultaneously with the active locking elements and having a window displaying differentiated information depending on the position of said active locking elements: for example, a green surface when these locking elements are in their assigned position as that of effective rotor locking, and a red surface in other operating conditions. The information thus displayed ensures that the operator can confirm the locking of their accessory when it is effective. (See Figure 2 for abbreviations.)

The invention relates to a centrifuge (10), in particular a laboratory centrifuge, comprising a) a rotor (32) for accommodating a container of material to be centrifuged, b) a drive shaft (42), on which the rotor (32) is supported, c) a motor (18), which drives the rotor (32) via the drive shaft (42), d) a bearing unit (44) having a bearing (20, 22, 24; 46, 48, 50, 52, 54, 56; 64, 66, 68), which has a damping element (20a, 22a, 24a; 46a, 48a, 50a; 52a, 54a, 56a; 64a, 66a, 68a) comprising a spring axis (20e, 22e, 24e; 46e, 48e, 50e; 52e, 54e, 56e; 64e, 66e, 68e), and e) a carrier element (16) for fastening the motor (18) in the centrifuge (10) via the bearing unit (44). The invention is characterized in that at least one damping element is completely composed of metal and is configured as a metal lining (46a, 48a, 50a; 52a, 54a, 56a; 64a, 66a, 68a), which comprises a wire mesh having elastic properties.

The invention relates to the technical field of centrifugal machines, in particular to a rapid detection device for a laboratory centrifugal machine assembly and a working method thereof.The rapid detection device comprises a transmission line, a solution tank and a rotary table, and at least one set of rotatable clamping assembly is arranged on the lower side of the rotary table; the clamping assembly is used for clamping the spiral pusher to move back and forth between the solution tank and the transmission line; a plurality of second electric telescopic rods are arranged between the clamping assembly and the rotary table, the second electric telescopic rods drive the clamping assembly to ascend and descend, and the spiral pusher descends and immerses into the solution tank so as to carry out corrosion resistance testing; a liftable cylinder baffle is arranged on the inner side of the solution tank, the cylinder baffle ascends to be away from the solution tank along with the spiral pusher, the clamping assembly drives the spiral pusher to rotate for spin-drying, and the automatic continuous testing function is conveniently, rapidly and efficiently achieved.

1. Name of the design product: Centrifugal separator. 2. Use of the design product: For the separation of substances in a laboratory. 3. Key design feature of this design product: Its shape. 4. Figure or photograph that best illustrates the key design feature: Perspective view in Figure 1.7. 1.1) Front view; 1.2) Left side view; 1.3) Right side view; 1.4) Top view; 1.5) Rear view; 1.6) Bottom view; 1.7) Perspective view

The utility model discloses a laboratory centrifuge safety protection structure which comprises an equipment support, an equipment body is fixedly connected to the equipment support, the equipment body comprises an equipment shell, a sealing cover is rotatably connected to the equipment shell, one side of the sealing cover is fixedly connected with a shifting piece, and the shifting piece is fixedly connected with a rotating shaft. A controller is fixedly connected to the side, close to the sealing cover, of the equipment shell, a shifting rod is movably connected to the controller, and the shifting rod is matched with the shifting piece. Through the equipment, the rotor can be kept horizontally moving downwards, the rotor and the rotating shaft can be automatically clamped, the situation that the rotating shaft cannot rotate due to the fact that the rotor deviates on the rotating shaft is avoided, abrasion between the rotating shaft and the equipment shell can be reduced under the action of the protective cover and the bearing pedestal, and the service life of the equipment is prolonged. And it can be guaranteed that no large vibration is generated during internal work, and when centrifugation is finished, the purpose of speed reduction can be achieved by pressing the pressing plate at the bottom.

The utility model discloses a sterilizing pot for a laboratory centrifuge tube. The sterilization pot comprises a pot body, a pot cover, a fixing assembly used for connecting the pot body and the pot cover, a centrifugal tube bearing structure arranged in the pot body, a storage plate located above the centrifugal tube bearing structure and a mounting assembly. The centrifugal tube bearing structure comprises a supporting plate, a plurality of centrifugal tube inserting holes I and a plurality of centrifugal tube inserting holes II, wherein the centrifugal tube inserting holes I and the centrifugal tube inserting holes II penetrate through the supporting plate and are evenly distributed. The centrifugal tube insertion hole I is positioned on one side of the centrifugal tube insertion hole II, and the sizes of the centrifugal tube insertion hole I and the centrifugal tube insertion hole II are different. According to the utility model, the centrifugal tubes of multiple specifications can be orderly placed, so that the adjacent centrifugal tubes do not interfere with each other during sterilization and are fully exposed, the sterilization quality is improved, the problem that the centrifugal tubes or samples are placed disorderly is solved, and articles are conveniently taken and placed due to the detachable design.

The subject of the application is a method for obtaining homogeneous amniotic membrane homogenates, which consists in collecting the amniotic membrane using known methods, then decontaminating it and rinsing it in an antibiotic bath using known methods, collecting samples for microbiological and histopathological examination, placing the tissue in sterile containers with a PBS solution, and all activities are performed in a sterile manner under laminar flow beds with class A air supply in class B clean rooms, then the samples are cryopreserved by placing them at a temperature of -20°C for 24 hours, and then cooling them in a low-temperature freezer at a temperature of -80°C in a thermally insulating packaging surrounded by dry ice, and immediately after being removed from the low-temperature freezer, the sample is crushed in PBS without Ca and Mg and placed in dry ice and stored in glass containers or sterile disposable chambers in dry ice,and then the samples are placed in liquid nitrogen and homogenized in a batch mill with impact-shearing action and ground with dry ice for 2 to 15 minutes, placed in a glass vessel or sterile disposable chambers and stored at a temperature of -55°C until the dry ice sublimates, then weighed and centrifuged for 2 to 5 minutes, preferably 3 minutes in a ratio of 1:1 to 1:1.5, preferably 1:1 homogenate with dry ice, then the homogenate is placed in a laboratory centrifuge at a temperature of +4°C and centrifuged for 1 to 3 minutes, preferably 2 minutes at a speed of 3000 rpm to 8000 rpm, preferably 5000 rpm and a relative centrifugal force of 1000 g to 1800 g, preferably 1400 g, and then cooled at a temperature of -30 to -10, preferably -20°C for 15 to 48 hours, preferably 24 hours, then the homogenates are centrifuged by placing them in a low-temperature freezer at -20°C, adding 5 ml of cooled PBS solution without Ca and Mg,the mixture is vortexed for 30 seconds, then subjected to another centrifugation at +4°C for 2 minutes at a speed of 5000 rpm and a relative centrifugal force of 1400 g, then the sample is purified using sterile syringe filters with a pore size of 0.22 µm, after which the supernatant is transferred to sterile tubes, from which 1 ml of supernatant is then taken and the supernatant is subjected to ultracentrifugation at +4°C for 5 minutes at a speed of 14,000 rpm and a relative centrifugal force of 14,000 g, after which it is cooled in a laboratory freezer at -80°C.,

The present invention relates to a rotor (1) closed by a cover (2), intended to equip laboratory devices of the centrifuge type, mainly with a vertical rotation axis, characterized in that the cover (2) comprises a single part (11) (hood) intended to close the chamber (3) arranged in the rotor (1) where the samples to be centrifuged are placed, free to rotate relative to the operating means (10) and locking means (14) of said cover (2) and that the sealing joints (12, 13) are only in contact with the rotor (2) and this single part (11).Since this cover (11) is free to rotate on the operating means (10) of the cover (2), the rotation by the user of said operating means (10) of said cover (2) to lock or unlock said cover (2) on said rotor (1) does not cause any relative movement between said cover (11) and said rotor (1), and as a positive consequence, no frictional force between the seals (12 and 13) and the rotor (1) or the cover (11). Figure for abstract: Figure 3.

The utility model discloses a small centrifugal machine for a laboratory, and belongs to the technical field of medical intermediates. The small-sized centrifugal machine for the laboratory comprises a centrifugal machine body and further comprises a rotating disc rotationally arranged in the centrifugal machine body; the limiting ring is fixedly arranged in the centrifugal machine body, and the limiting ring is arranged on the lower side of the rotating disc; the motor is fixedly arranged in the centrifugal machine body, and the output end of the motor is fixedly connected with the rotating disc; the placing box is arranged on the upper side of the rotating disc; the protective layer is arranged on the inner wall of the placing box; the top plate is fixedly arranged at the upper end of the placing box; the plurality of test tube racks are arranged on the top plate in a circumferential rotation manner; the controller is arranged on the centrifugal machine body; the test tube can be conveniently taken out, the centrifugal efficiency is effectively improved, and meanwhile, the centrifugal tube is suitable for centrifugal operation at different inclination angles.

The invention relates to a flexible drive shaft (10) for transmitting a torque from a motor (4) to a high-speed rotor (2), in particular for a laboratory centrifuge (1), wherein the material of the drive shaft (10) has a defined yield strength and a defined modulus of elasticity. In order to provide a novel drive unit, for example for a laboratory centrifuge, which at least maintains the necessary flexibility at critical rotational speeds but has a higher strength with regard to the bending stresses, according to the invention a material is used for the drive shaft (10) in which a quotient of the yield strength of the material in N / mm² divided by the modulus of elasticity of the material in N / mm² assumes a value > 0.0045.

The invention relates to a laboratory centrifuge container assembly (20) with a laboratory centrifuge container lid (18). The laboratory centrifuge container lid (18) has a lid body (1) and a coupling ring (8) made of an elastomeric material, in particular silicone. The coupling ring (8) is secured to the lid body (1) on one side by a lid snap connection (19) and to a laboratory centrifuge container (21) on the other side by means of a container snap connection (29). The elasticity of the elastomeric material of the coupling ring (8) is used to achieve the securing effect.

The utility model discloses a centrifuge tube waste liquid recovery structure for a laboratory centrifuge, which comprises a collection box, a lifting part is arranged above the collection box, a flow guide cover is arranged above the lifting part, a recovery screen plate is fixedly arranged at the top end of the flow guide cover, a filter assembly is arranged below the flow guide cover, and a filter screen is arranged below the filter assembly. A connecting pipe is arranged below the filtering assembly, the bottom end of the connecting pipe is fixedly communicated with a telescopic hose, and the bottom end of the telescopic hose is fixedly communicated with the upper surface of the collecting box. According to the utility model, the electric cylinder drives the lifting sliding plate to slide in the supporting cover, so that the lifting of the overall height of the flow guide cover and the recovery screen plate can be realized, the collection height can be flexibly adjusted, and the device can easily adapt to laboratory tables with different heights; solid impurities in the waste liquid can be intercepted and filtered by utilizing the filter screen plate in the filter cover, so that the interference of the impurities on the subsequent treatment link is reduced.

The laboratory centrifugal machine with the damping device comprises a centrifugal machine box body, a box cover movably installed on the rear side of the upper end of the centrifugal machine box body and a centrifugal motor used for providing centrifugal force, a reserved cavity is formed in the middle of the upper end of the centrifugal machine box body, and a centrifugal cavity is installed in the reserved cavity. The centrifugal motor is installed at the bottom of the centrifugal cavity, the output end of the centrifugal motor is fixedly connected with a centrifugal tray, a plurality of sets of evenly-distributed holding mechanisms are inserted into the upper portion of the centrifugal tray, each holding mechanism comprises a containing pipe, and a plurality of sets of holding blocks used for holding centrifugal pipes are installed in an inner cavity of each containing pipe; a locking cover is movably installed in the middle of the upper end of the centrifugal tray, by arranging the holding mechanism, a user can conveniently insert centrifugal tubes with different thicknesses into the containing tubes for centrifugation, the larger the downward force of the centrifugal tubes is, the tighter the centrifugal tubes are held by the holding mechanism, and the situation that the centrifugal tubes shake during centrifugation is prevented.

The invention discloses a monitoring device used in an aquaculture environment, which belongs to the field of laboratory centrifuges, and is characterized in that a switching bracket mechanism is mounted in an inner cylinder cavity, and a switching bottom plate can be pulled back and forth in the inner cylinder cavity, so that three rotor disc bodies on the switching bottom plate can stay in the inner cylinder cavity respectively; when samples loaded in the test tube bodies located in the inner cylinder cavity and on the rotor disc bodies are rotationally separated, the test tube bodies can be synchronously taken down or mounted on the inclined slots in the other two rotor disc bodies located on the outer side of the inner cylinder cavity, the waiting time for taking down or mounting the test tube bodies during separation of a large number of samples is shortened, and the working efficiency is improved.

The utility model relates to the technical field of centrifuge tubes, and provides a laboratory centrifuge tube for filtering samples, which comprises a tube body, a first filter part and a second filter part, the first filter part comprises a lantern ring and a first filter part, the lantern ring is sleeved at the port of the tube body, the first filter part comprises a first mesh enclosure and an ultrafiltration separation membrane, and the second filter part comprises a second mesh enclosure. The ultrafiltration separation membrane is arranged in the inner side of the first mesh enclosure, the lantern ring and the first mesh enclosure are integrally formed, the second filtering piece comprises a second mesh enclosure and a microfiltration separation membrane, the microfiltration separation membrane is arranged in the inner side of the second mesh enclosure, and the second mesh enclosure is connected with the first mesh enclosure; the radial gap value between the first mesh enclosure and the inner wall of the pipe body and the radial gap value between the second mesh enclosure and the ultrafiltration separation membrane on the inner side of the first mesh enclosure are both 5 mm, and the axial gap value between the second mesh enclosure and the ultrafiltration separation membrane at the bottom of the first mesh enclosure is both 10 mm. And solid substances in the first filtering piece and the second filtering piece can be conveniently obtained and independently detected.