A centrifugal apparatus for use in a hospital laboratory

By improving the design of the centrifuge and oscillation components, the problem of easy leakage of test tubes at high speeds was solved, achieving stable sealing and effective centrifugation of test tubes, and ensuring the blood separation effect.

CN117983424BActive Publication Date: 2026-08-25THE 980TH HOSPITAL OF THE CHINESE PEOPLES LIBERATION ARMY JOINT LOGISTICS SUPPORT FORCE
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Patent Information

Application Number
CN202410367651.8
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-03-28
Publication Date
2026-08-25
Estimated Expiration
2044-03-28

AI Technical Summary

Technical Problem

At high speeds, the test tube may easily break free from the rubber sleeve or the stopper may separate from the test tube, causing blood to spill out and affecting the centrifugation environment inside the apparatus.

Method used

A centrifuge device for hospital testing, comprising a centrifuge assembly, a sealing baffle, and a oscillation assembly, was designed. By cooperating with an annular block and a hollow clamping block, and utilizing the squeezing and friction forces of the rubber baffle and the concave hollow rubber sleeve, the test tubes are kept sealed. Furthermore, the design of the spring rod and the clamping rod reduces vibration and displacement, ensuring the stability of the test tubes during the centrifugation process.

Benefits of technology

It effectively avoids leakage and damage to test tubes during centrifugation, ensures the separation effect of blood in the test tubes, and improves the stability and cleanliness of centrifugation operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to the technical field of inspection equipment, and more particularly to a centrifugal equipment for hospital inspection department. The technical scheme comprises: a centrifugal equipment for hospital inspection department, which comprises a centrifuge assembly, a sealing baffle hinged on one side of the centrifuge assembly, and an oscillation assembly arranged in the centrifuge assembly. The hollow clamping block is gradually close to the concave hollow rubber sleeve along the track of the rotating groove by the annular block. The side of the rubber baffle towards the concave hollow rubber sleeve is outwardly convex arc-shaped. The arc-shaped positioning block extrudes the concave hollow rubber sleeve. The cavity in the concave hollow rubber sleeve expands outward. The lower part of the concave hollow rubber sleeve is more attached to the surface of the test tube after being extruded by the air pressure. The upper part of the concave hollow rubber sleeve is elongated upward. The elongated part extrudes and limits the position of the stopper. Therefore, when a large number of test tubes are simultaneously subjected to the centrifugal step, the test tubes always maintain a good sealing state, and leakage of the test tubes is avoided.
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Description

Technical Field

[0001] This invention relates to the field of testing equipment technology, and in particular to a centrifuge for testing in a hospital laboratory. Background Technology

[0002] Centrifuges play a crucial role in medical testing within hospital laboratories. They are primarily used to separate and concentrate components such as cells, proteins, and nucleic acids from biological samples. Common applications include blood separation, urine analysis, and virus detection. Centrifuges are used in hospital laboratories to rapidly separate various components from samples, aiding in disease diagnosis, health monitoring, and drug screening. Patent document CN213792239U discloses a centrifuge for laboratory testing in a hospital. The centrifuge includes a housing, a water pump fixedly installed on the bottom side of the housing, a heater fixedly installed on one side of the water pump, and a cooling fan fixedly installed on the other side of the heater. A first partition is fixedly installed on the top of the housing near the cooling fan, and a second partition is fixedly installed on the top of the housing near the first partition. The heater and the second partition have internal pipes connected to each other. A rotating shaft passes through the middle of the first and second partitions, and a through-hole bearing on the shaft connects to both partitions. The bottom end of the rotating shaft is connected to a motor via a coupling. A rotating frame is fixedly installed on the top of the rotating shaft, and several test tube mounting slots are fixedly installed inside the rotating frame. This centrifuge for laboratory testing in a hospital has a simple and reasonable structure and is easy to use.

[0003] When using the above devices, the centrifugation efficiency of the test tubes is improved. However, the test tubes are positioned by conventional rubber sleeves. At high speeds, the test tubes are prone to break free from the grip of the rubber sleeves or the stopper of the test tube may separate from the test tube, which can cause blood to spill out and affect the centrifugation environment inside the device.

[0004] Therefore, this application proposes a centrifuge device for laboratory testing in a hospital laboratory. Summary of the Invention

[0005] The purpose of this invention is to address the problem in the prior art where, under high rotation speed, test tubes are prone to slipping out of the rubber sleeve or the stopper of the test tube separates from the test tube, causing blood to spill out and affecting the centrifugation environment inside the device. This invention proposes a centrifuge device for hospital laboratory departments.

[0006] The technical solution of the present invention: a centrifuge device for testing in a hospital laboratory, comprising a centrifuge assembly, a sealing baffle hinged to one side of the centrifuge assembly, and an oscillation assembly disposed inside the centrifuge assembly; The centrifuge assembly includes a centrifuge frame, a centrifuge chamber is fixedly connected to the inner side of the centrifuge frame, a forward and reverse motor is fixedly connected to the bottom of the centrifuge frame, a rotating rod is fixedly connected to the output end of the forward and reverse motor, a sandwich block is fixedly connected to the outer side of the rotating rod, a plurality of sandwich plates are fixedly connected to the outer side of the sandwich block, a centrifuge tube placement block is slidably connected between every two sandwich plates through an opening, and a plurality of centrifuge tube slots are provided on the surface of the centrifuge tube placement block; The centrifuge tube placement block has three rotating grooves on its surface. Three annular blocks are slidably connected to the centrifuge tube placement block through the three rotating grooves. Hollow locking blocks, matching the number of centrifuge tube slots, are fixedly connected to the top of the three annular blocks. Arc-shaped positioning blocks are slidably connected to the inside of the hollow locking blocks through spring rods. The spring rods are fixedly connected to the inner side of the hollow locking blocks. Rubber baffles, matching the number of hollow locking blocks, are fixedly connected to the top of the centrifuge tube placement block. A concave hollow rubber sleeve with telescopic threads on its surface is fixedly connected to the inside of the centrifuge tube slot.

[0007] Optionally, multiple centrifuge tube slots, rubber baffles, and hollow locking blocks are arranged in a circular array about the center of the rotating rod. Test tubes are inserted into the interior of the concave hollow rubber sleeve. The hollow locking block slides between the rubber baffle and the concave hollow rubber sleeve via a ring block, with one side of the hollow locking block abutting the center of the rubber baffle and the other side abutting the center of the concave hollow rubber sleeve. The concave hollow rubber sleeve is configured to clamp the test tubes.

[0008] Optionally, the centrifuge assembly includes a built-in spring block, which is fixedly installed at the bottom of the centrifuge tube placement block, and a plurality of positioning springs located in the centrifuge tube slots are fixedly connected at the connection between the built-in spring block and the centrifuge tube placement block.

[0009] Optionally, the oscillation assembly includes a hollow guide rod, which is slidably mounted on the centrifuge frame via an annular groove on the inner wall of the centrifuge frame. Two positioning rods are fixedly connected to both sides of the hollow guide rod, and an equal number of bidirectional clamping sleeves are fixedly connected to both sides of the two positioning rods. A clamping rod is slidably connected between the two bidirectional clamping sleeves via a hollow sleeve rod, and the clamping rod is fixedly mounted at the bottom end of the centrifuge tube placement block.

[0010] Optionally, a guide rod is rotatably connected to one end of the hollow guide rod away from the centrifuge frame, a second bevel gear is fixedly connected to one side of the guide rod, a first bevel gear is fixedly connected to the outer surface of the forward and reverse motor, and the second bevel gear meshes with the outer surface of the first bevel gear.

[0011] Optionally, a cross-shaped positioning block is fixedly connected to the hollow guide rod, an eccentric rotating block is fixedly connected to the guide rotating rod inside the cross-shaped positioning block, an internal annular groove block adapted to the eccentric rotating block is fixedly connected to the bottom end of the clamping rod, and an auxiliary spring is fixedly connected to one end of the clamping rod that passes through the hollow sleeve rod, and the auxiliary spring is fixedly installed on the hollow sleeve rod.

[0012] Optionally, a sealing baffle is hinged to one side of the centrifuge assembly, adjustment and positioning components are fixedly connected to both ends of the centrifuge assembly, and a double-slotted table is attached to the bottom of the centrifuge assembly.

[0013] Optionally, the adjustment and positioning assembly includes a positioning plate, an L-shaped positioning plate fixedly connected to the top of the positioning plate, a hollow tube fixedly connected to one end of the L-shaped positioning plate, a threaded push rod slidably connected inside the hollow tube, the threaded push rod being threadedly connected to the double-slotted tabletop, and a return spring fixedly connected inside the hollow tube, the return spring being fixedly installed on the outside of the threaded push rod.

[0014] Compared with the prior art, the present invention has the following beneficial technical effects: 1. The staff grasps the ring block, causing it to move the hollow block along the track of the rotating groove closer to the concave hollow rubber sleeve. The side of the rubber baffle facing the concave hollow rubber sleeve is an outward convex arc shape. The arc-shaped positioning block squeezes the concave hollow rubber sleeve, causing the cavity inside the concave hollow rubber sleeve to expand outward. The concave hollow rubber sleeve gradually straightens from its corrugated shape. The air pressure below the concave hollow rubber sleeve compresses it more closely to the surface of the test tube. The upper part of the concave hollow rubber sleeve extends upward, and the extended part squeezes and limits the position of the bottle stopper. Thus, when a large number of test tubes are centrifuged simultaneously, the test tubes always maintain a good sealing state, avoiding leakage of the test tubes, and at the same time, facilitating the installation and disassembly of the test tubes. 2. The friction between the two blocks keeps the hollow block in a stable position, while the rubber baffle reduces the vibration of the hollow block as it rotates with the centrifuge tube placement block. At the same time, the spring rod limits the arc-shaped positioning block and uses its own elasticity to prevent excessive pressure on the concave hollow rubber sleeve, thus preventing the test tube from being damaged due to excessive pressure. 3. The holding rod moves the centrifuge tube placement block and test tube upwards via the built-in spring block until the side with the larger diameter of the eccentric rotating block slides out of the built-in annular groove. Under the limit and buffer of the auxiliary spring, the holding rod moves downwards by gravity. The built-in annular groove block fits against the side with the smaller diameter of the eccentric rotating block. At this time, the blood inside the test tube moves slightly up and down, thus completing the up and down cyclic movement. The blood inside the test tube shakes slightly due to inertia, thereby preventing particles inside the test tube from adhering to the test tube and failing to achieve good blood separation. It also avoids difficulties in cleaning the test tube later. 4. After the worker passes through the mounting holes of the double-slotted tabletop, they rotate the nut at one end through the mounting hole. At this time, the other set of adjustment and positioning components also aligns and completes the same operation, thereby improving the stability of the equipment during centrifugation, preventing the equipment from shifting along the table during centrifugation, and eliminating the need for the worker to pay attention to adjusting the position. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the centrifuge device for laboratory testing in a hospital laboratory department according to the present invention; Figure 2 This is a schematic diagram of the structure of the positioning adjustment component of the present invention; Figure 3 This is a schematic diagram of the rotating rod of the present invention; Figure 4 This is the present invention. Figure 3 Enlarged view of part A in the middle; Figure 5 This is a schematic diagram of the concave hollow rubber sleeve of the present invention; Figure 6 This is a schematic diagram of the rotating rod of the present invention; Figure 7 This is the present invention. Figure 6 Enlarged view of part B in the middle; Figure 8 This is a schematic diagram of the hollow card block in this invention; Figure 9 This is a schematic diagram of the cross-shaped positioning block of the present invention; Figure 10 This is a schematic diagram of the hollow sleeve rod of the present invention; Figure 11 This is the present invention. Figure 10 Enlarged view of part C in the middle.

[0016] Reference numerals: 1. Double-slotted tabletop; 2. Centrifuge assembly; 201. Centrifuge chamber; 202. Centrifuge frame; 203. Rotating rod; 204. Interlayer block; 205. Interlayer plate; 206. Centrifuge tube placement block; 207. Centrifuge tube slot; 208. Rubber baffle; 209. Concave hollow rubber sleeve; 210. Rotating groove; 211. Hollow locking block; 212. Built-in spring block; 213. Arc-shaped positioning block; 214. Annular block; 215. Spring rod; 216. Forward and reverse motor; 217. First conical tooth 3. Vibration assembly; 301. Clamping rod; 302. Hollow guide rod; 303. Auxiliary spring; 304. Two-way clamping sleeve; 305. Hollow sleeve rod; 306. Cross-shaped positioning block; 307. Second bevel gear; 308. Positioning insert rod; 309. Guide rotating rod; 310. Built-in annular groove block; 311. Eccentric rotating block; 4. Adjustment and positioning assembly; 401. Positioning plate; 402. L-shaped positioning plate; 403. Hollow tube; 404. Threaded push rod; 405. Return spring; 5. Sealing baffle. Detailed Implementation

[0017] The technical solution of the present invention will be further described below with reference to the accompanying drawings and specific embodiments. Example 1

[0018] like Figures 1-8 As shown, the present invention proposes a centrifuge device for testing in a hospital laboratory, including a centrifuge assembly 2, a sealing baffle 5 hinged to one side of the centrifuge assembly 2, and an oscillation assembly 3 disposed inside the centrifuge assembly 2.

[0019] The centrifuge assembly 2 includes a centrifuge frame 202, a centrifuge chamber 201 fixedly connected to the inner side of the centrifuge frame 202, a forward and reverse motor 216 fixedly connected to the bottom of the centrifuge frame 202, a rotating rod 203 fixedly connected to the output end of the forward and reverse motor 216, a sandwich block 204 fixedly connected to the outer side of the rotating rod 203, a plurality of sandwich plates 205 fixedly connected to the outer side of the sandwich block 204, and a centrifuge tube placement block 206 slidably connected between every two sandwich plates 205 through a sliding opening, and a plurality of centrifuge tube slots 207 are provided on the surface of the centrifuge tube placement block 206.

[0020] In this embodiment, the surface of the centrifuge tube placement block 206 is provided with three rotating grooves 210. Three annular blocks 214 are slidably connected to the centrifuge tube placement block 206 via the three rotating grooves 210. Hollow locking blocks 211, matching the number of centrifuge tube slots 207, are fixedly connected to the top of the three annular blocks 214. An arc-shaped positioning block 213 is slidably connected to the inside of the hollow locking block 211 via a spring rod 215. The spring rod 215 is fixedly connected to the inner side of the hollow locking block 211. Rubber baffles 208, matching the number of hollow locking blocks 211, are fixedly connected to the top of the centrifuge tube placement block 206. The tube slot 207 is internally fixedly connected to a concave hollow rubber sleeve 209 with a telescopic thread on its surface. Workers insert multiple test tubes one by one into the concave hollow rubber sleeve 209. As the test tubes are inserted, the diameter of the concave hollow rubber sleeve 209 expands. Due to the corrugated nature of the telescopic thread of the concave hollow rubber sleeve 209, the test tubes contact the corrugations of the sleeve, generating significant friction for the first step of positioning. Next, the worker grasps the outer annular block 214, which drives the hollow locking block 211 to gradually move along the track of the rotating groove 210. The concave hollow rubber sleeve 209 has a rubber baffle 208 that convexes outwards on the side facing it. The shortest distance between the rubber baffle 208 and the concave hollow rubber sleeve 209 is located at the center of this arc. The side of the hollow locking block 211 closest to the rubber baffle 208 contacts the center of the baffle 208. After the end of the arc-shaped positioning block 213 closest to the concave hollow rubber sleeve 209 contacts it, the arc-shaped positioning block 213 slides inside the hollow locking block 211, and the spring rod 215 is compressed. After being compressed, the cavity inside the concave hollow rubber sleeve 209 expands outward, and the concave hollow rubber sleeve 209 gradually straightens from its corrugated shape. The air pressure below the concave hollow rubber sleeve 209 compresses it and makes it fit more closely to the surface of the test tube. The upper part of the concave hollow rubber sleeve 209 extends upward, and the extended part compresses and limits the position of the stopper. Then, the same operation is performed on the middle annular block 214 and the inner annular block 214. Thus, when a large number of test tubes are centrifuged simultaneously, the test tubes always maintain a good sealing state, avoiding leakage of the test tubes, and at the same time facilitating the installation and disassembly of the test tubes. Example 2

[0021] like Figures 3-8As shown, based on Embodiment 1, multiple centrifuge tube slots 207, rubber baffles 208, and hollow locking blocks 211 are arranged in a circular array about the center of the rotating rod 203. Test tubes are inserted into the concave hollow rubber sleeve 209. The hollow locking block 211 slides between the rubber baffle 208 and the concave hollow rubber sleeve 209 via an annular block 214. One side of the hollow locking block 211 abuts against the center of the rubber baffle 208, and the other side abuts against the center of the concave hollow rubber sleeve 209. The concave hollow rubber sleeve 209 clamps the test tubes. When the hollow locking block 211 is not in contact, the concave hollow rubber sleeve 209 functions as a conventional rubber sleeve mechanism, facilitating the placement of the test tubes. When the hollow locking block 211 is in contact with the concave hollow rubber sleeve 209 and the rubber baffle 208, the hollow locking block 211 and the arc-shaped positioning block 213 are subjected to the pressure of the rubber baffle 208 and the concave hollow rubber sleeve 209. While using the friction between the two to keep the hollow locking block 211 in a stable position, the rubber baffle 208, being made of rubber, can reduce the vibration of the hollow locking block 211 as it rotates with the centrifuge tube placement block 206. At the same time, the spring rod 215 not only limits the arc-shaped positioning block 213, but also uses its own elasticity to prevent excessive pressure on the concave hollow rubber sleeve 209 and squeeze the test tube, thus preventing the test tube from being damaged due to excessive pressure. Example 3

[0022] like Figures 3-11 As shown, based on the above embodiment 1 or 2, the centrifuge assembly 2 includes a built-in spring block 212, which is fixedly installed at the bottom of the centrifuge tube placement block 206. Multiple positioning springs located within the centrifuge tube slots 207 are fixedly connected at the connection between the built-in spring block 212 and the centrifuge tube placement block 206. The test tube slides along the concave hollow rubber sleeve 209 from the centrifuge tube placement block 206 to the positioning spring at the bottom of the built-in spring block 212. The number of positioning springs is consistent with the number of test tubes, and the contact between the positioning springs and the bottom of the test tubes improves the stability of the test tube installation. The oscillation assembly 3 includes a hollow guide rod 302, which is slidably installed on the centrifuge outer frame 202 via an annular groove on the inner wall of the centrifuge frame 202. On the centrifuge outer frame 202, two positioning rods 308 are fixedly connected to both sides of the hollow guide rod 302. An equal number of bidirectional clamping sleeves 304 are fixedly connected to both sides of the two positioning rods 308. A clamping rod 301 is slidably connected between the two bidirectional clamping sleeves 304 through a hollow sleeve rod 305. The clamping rod 301 is fixedly installed at the bottom end of the centrifuge tube placement block 206. A guide rod 309 is rotatably connected to the end of the hollow guide rod 302 away from the centrifuge outer frame 202. A second bevel gear 307 is fixedly connected to one side of the guide rod 309. A first bevel gear 217 is fixedly connected to the outer surface of the forward and reverse motor 216. The second bevel gear 307 meshes with the outer surface of the first bevel gear 217.

[0023] In this embodiment, a cross-shaped positioning block 306 is fixedly connected to the hollow guide rod 302, and an eccentric rotating block 311 is fixedly connected to the guide rotating rod 309 located inside the cross-shaped positioning block 306. An internal annular groove block 310 adapted to the eccentric rotating block 311 is fixedly connected to the bottom end of the holding rod 301. An auxiliary spring 303 is fixedly connected to one end of the holding rod 301 that passes through the hollow sleeve rod 305. The auxiliary spring 303 is fixedly installed on the hollow sleeve rod 305. The forward and reverse motor 216 outputs... The shaft drives the rotating rod 203 to rotate. The rotating rod 203 drives multiple centrifuge tube placement blocks 206 to rotate and centrifuge under the clamping of the sandwich plate 205. As the first bevel gear 217 contacts the second bevel gear 307, causing the second bevel gear 307 to rotate, the second bevel gear 307 rotates along the clamping of the hollow guide rod 302. The guide rod 309 drives the eccentric rotating block 311 to rotate along the cavity of the cross-shaped positioning block 306. The eccentric rotating block 311, due to... With different diameters, the larger diameter side of the eccentric rotating block 311 moves upward along the top of the groove of the built-in annular groove block 310, causing the retaining rod 301 to move upward along the hollow sleeve rod 305. The retaining rod 301, through the built-in spring block 212, moves the centrifuge tube placement block 206 and the test tube upward until the larger diameter side of the eccentric rotating block 311 slides out of the built-in annular groove block 310. Under the limitation and buffering of the auxiliary spring 303, the retaining rod 301 moves downward by gravity. The built-in annular groove block 310 fits against the smaller diameter side of the eccentric rotating block 311. At this time, the blood inside the test tube moves slightly up and down. After the centrifuge tube placement block 206 completes its up and down cyclic movement, the blood inside the test tube shakes slightly due to inertia, flushing the inner wall of the test tube. Heavier particles cannot remain at the bottom and cannot be separated well, thus avoiding particles from adhering to the test tube and failing to achieve good blood separation. It also avoids difficulties in cleaning the test tube later. Example 4

[0024] like Figures 1-2 As shown, based on embodiments 1 or 3 above, a sealing baffle 5 is hinged to one side of the centrifuge assembly 2, and adjustment and positioning components 4 are fixedly connected to both ends of the centrifuge assembly 2. A double-slotted tabletop 1 is attached to the bottom of the centrifuge assembly 2. When the doctor centrifuges the blood collection tubes, the tubes are symmetrical. After starting the centrifuge, the speed slowly increases until the set speed is reached. The centrifuge then starts a countdown. When the set time is reached, the centrifuge will stop running and slowly decelerate until zero. After the centrifuge stops running, the sealing baffle 5 should not be opened immediately. It should only be opened when the speed displayed on the centrifuge screen is zero. After centrifugation, it is necessary to observe whether the serum and blood cells are separated into layers to understand the specific centrifugation situation inside the tube.

[0025] In this embodiment, the positioning adjustment assembly 4 includes a positioning plate 401. An L-shaped positioning plate 402 is fixedly connected to the top of the positioning plate 401. A hollow tube 403 is fixedly connected to one end of the L-shaped positioning plate 402. A threaded push rod 404 is slidably connected inside the hollow tube 403. The threaded push rod 404 is threadedly connected to the double-slotted table 1. A return spring 405 is fixedly connected inside the hollow tube 403. The return spring 405 is fixedly installed on the outside of the threaded push rod 404. Before the centrifugation step, the operator first places the centrifuge assembly 2 on the double-slotted table 1. The double-slotted table 1 can be a standard... For the four-corner template table, first align the positioning plate 401 on one side with the mounting hole of the double-grooved table 1, then press down the threaded push rod 404. The threaded push rod 404 moves downward along the inside of the hollow tube 403. When the threaded push rod 404 is directly above the mounting hole of the double-grooved table 1, the worker passes through the mounting hole of the double-grooved table 1 and rotates the nut at the end that passes through the mounting hole. At this time, the other set of adjustment and positioning components 4 also aligns and completes the same operation, thereby improving the stability of the equipment during centrifugal operation, avoiding the equipment from shifting along the table during centrifugal operation, and requiring the worker to pay attention to adjusting the position.

[0026] It should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "including," "Include" or any other variation thereof is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] The above specific embodiments are merely several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A centrifuge for laboratory testing in a hospital laboratory, comprising a centrifuge assembly (2), a sealing baffle (5) hinged to one side of the centrifuge assembly (2), and an oscillation assembly (3) disposed inside the centrifuge assembly (2), characterized in that: The centrifuge assembly (2) includes a centrifuge frame (202), a centrifuge chamber (201) is fixedly connected to the inner side of the centrifuge frame (202), a forward and reverse motor (216) is fixedly connected to the bottom of the centrifuge frame (202), a rotating rod (203) is fixedly connected to the output end of the forward and reverse motor (216), a sandwich block (204) is fixedly connected to the outer side of the rotating rod (203), a plurality of sandwich plates (205) are fixedly connected to the outer side of the sandwich block (204), and a centrifuge tube placement block (206) is slidably connected between every two sandwich plates (205) through a sliding opening, and a plurality of centrifuge tube slots (207) are provided on the surface of the centrifuge tube placement block (206). The centrifuge tube placement block (206) has three rotating grooves (210) on its surface. Three annular blocks (214) are slidably connected to the centrifuge tube placement block (206) through the three rotating grooves (210). Hollow locking blocks (211) are fixedly connected to the top of the three annular blocks (214) in the same number as centrifuge tube slots (207). Arc-shaped positioning blocks (213) are slidably connected to the inside of the hollow locking blocks (211) through spring rods (215). The spring rods (215) are fixedly connected to the inside of the hollow locking blocks (211). Rubber baffles (208) are fixedly connected to the top of the centrifuge tube placement block (206) in the same number as the hollow locking blocks (211). A concave hollow rubber sleeve (209) with telescopic threads is fixedly connected to the inside of the centrifuge tube slots (207). Multiple centrifuge tube slots (207), rubber baffles (208), and hollow locking blocks (211) are arranged in a circular array about the center of the rotating rod (203). Test tubes are inserted into the concave hollow rubber sleeve (209). The hollow locking block (211) slides between the rubber baffle (208) and the concave hollow rubber sleeve (209) through the ring block (214). One side of the hollow locking block (211) abuts against the center of the rubber baffle (208), and the other side abuts against the center of the concave hollow rubber sleeve (209). The concave hollow rubber sleeve (209) is set in a clamping state for the test tube. The centrifuge assembly (2) includes a built-in spring block (212), which is fixedly installed at the bottom end of the centrifuge tube placement block (206). At the connection between the built-in spring block (212) and the centrifuge tube placement block (206), a plurality of positioning springs located in the centrifuge tube slot (207) are fixedly connected. The oscillation assembly (3) includes a hollow guide rod (302), which is slidably mounted on the centrifuge frame (202) through an annular groove on the inner wall of the centrifuge frame (202). Two positioning rods (308) are fixedly connected to both sides of the hollow guide rod (302). An equal number of bidirectional clamping sleeves (304) are fixedly connected to both sides of the two positioning rods (308). A clamping rod (301) is slidably connected between the two bidirectional clamping sleeves (304) through a hollow sleeve rod (305). The clamping rod (301) is fixedly mounted at the bottom end of the centrifuge tube placement block (206). The hollow guide rod (302) is rotatably connected to a guide rod (309) at one end away from the centrifuge frame (202). A second bevel gear (307) is fixedly connected to one side of the guide rod (309). A first bevel gear (217) is fixedly connected to the outer surface of the forward and reverse motor (216). The second bevel gear (307) meshes with the outer surface of the first bevel gear (217). A cross-shaped positioning block (306) is fixedly connected to the hollow guide rod (302). An eccentric rotating block (311) is fixedly connected inside the cross-shaped positioning block (306). An internal annular groove block (310) that matches the eccentric rotating block (311) is fixedly connected to the bottom end of the clamping rod (301). An auxiliary spring (303) is fixedly connected to one end of the clamping rod (301) that passes through the hollow sleeve rod (305). The auxiliary spring (303) is fixedly installed on the hollow sleeve rod (305).

2. The centrifuge for laboratory testing in a hospital laboratory according to claim 1, characterized in that, A sealing baffle (5) is hinged to one side of the centrifuge assembly (2), and an adjustment and positioning assembly (4) is fixedly connected to both ends of the centrifuge assembly (2). A double-grooved table (1) is attached to the bottom of the centrifuge assembly (2).

3. A centrifuge for laboratory testing in a hospital laboratory according to claim 2, characterized in that, The adjustment and positioning component (4) includes a positioning plate (401), an L-shaped positioning plate (402) is fixedly connected to the top of the positioning plate (401), a hollow tube (403) is fixedly connected to one end of the L-shaped positioning plate (402), a threaded push rod (404) is slidably connected inside the hollow tube (403), the threaded push rod (404) is threadedly connected to the double slotted table (1), and a return spring (405) is fixedly connected inside the hollow tube (403), the return spring (405) is fixedly installed on the outside of the threaded push rod (404).

Citation Information

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