Variable-speed centrifugal machine for pharmacy and control method of variable-speed centrifugal machine

Abstract

The invention discloses a variable-speed centrifugal machine for pharmacy and a control method thereof.The variable-speed centrifugal machine comprises a centrifugal machine shell and a sealing cover, the sealing cover is rotationally arranged between the two sides of an inner cavity of the centrifugal machine shell through a rotating shaft, and a driving motor is fixedly connected to the bottom of the inner cavity of the centrifugal machine shell. According to the variable-speed centrifugal machine for pharmacy and the control method of the variable-speed centrifugal machine for pharmacy, the space deformation mechanism, the pre-discharging mechanism and the positioning and compacting mechanism are arranged among the centrifugal machine shell, the sealing cover and the driving motor, so that when sample bottles need to be taken, the device can be used for taking the sample bottles through cooperation of the space deformation mechanism, the pre-discharging mechanism and the positioning and compacting mechanism; and the plurality of arc-shaped inclined blocks are subjected to automatic position lifting and dispersive concentric displacement, so that the sampling space and position among the plurality of arc-shaped inclined blocks are expanded and improved, and an operator can take and place the sample manually and conveniently.

Description

Technical Field

[0001] The invention relates to the technical field of centrifuges, in particular to a variable-speed centrifuge for pharmaceutical manufacturing and a control method thereof. Background Art

[0002] In the process of drug development, in order to accurately obtain a certain drug component, centrifuges are usually used for centrifugal operation. The centrifuge uses multi-frequency speed regulation to make the mixed drug solution centrifuged at high speed, and the drug solution inside is separated into different components of various substances by specific gravity.

[0003] In the prior art, although the multi-frequency centrifugal control of the centrifuge can facilitate the separation of the components of the mixed liquid, it is inevitable that there are still some shortcomings in the actual use process. For example, the device lacks a deformation mechanism, so that the taking and placing of the sample tube will be limited by the fixed taking and placing space of the sample tray, resulting in a relatively narrow taking and placing space, which is inconvenient to take and place samples comfortably. In order to avoid such problems, a variable speed centrifuge for pharmaceutical manufacturing and a control method thereof are proposed to solve the existing problems. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a variable-speed centrifuge for pharmaceutical manufacturing and a control method thereof, which solves the problem that the device lacks a deformation mechanism, resulting in the inconvenience of deforming the sample plate according to the usage status, resulting in a relatively narrow and limited space for taking samples.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A variable speed centrifuge for pharmaceutical manufacturing, comprising a centrifuge housing and a cover, the cover is rotatably arranged between the two sides of the inner cavity of the centrifuge housing through a rotating shaft, a driving motor is fixedly connected to the bottom of the inner cavity of the centrifuge housing, the output shaft of the driving motor is fixedly connected to a polygonal shaft through a coupling, a movable plate is slidably connected to the interior of the centrifuge housing, an inner polygonal sleeve used in conjunction with the polygonal shaft is rotatably arranged inside the movable plate through a bearing, a plurality of first limiting sleeves are equidistantly and fixedly connected to the surface of the inner polygonal sleeve, a first limiting rod is slidably connected to the interior of the first limiting sleeve, and a first return spring is fixedly connected between the first limiting rod and the first limiting sleeve, one end of the first limiting rod is fixedly connected to an arc-shaped inclined block, a sample bottle tube sleeve is installed inside the arc-shaped inclined block, a sample bottle is placed inside the sample bottle tube sleeve, a space deformation mechanism is arranged on the cover and the centrifuge housing, a pre-discharging mechanism is arranged on the centrifuge housing and the sample bottle tube sleeve, and a positioning and compacting mechanism is arranged on the cover.

[0006] Preferably, the spatial deformation mechanism comprises a U-shaped bracket with a handle, which is fixedly arranged on the front side of the inner cavity of the centrifuge housing, and the top of the U-shaped bracket with a handle is respectively fixedly provided with a small-aperture ring and a large-aperture ring through a vertical rod, the bottom of the first limiting rod is fixedly connected with a Z-shaped movable rod used in conjunction with the small-aperture ring and the large-aperture ring, the top of the cover is fixedly connected with a mounting frame, a pressure rod is rotatably arranged between the two sides of the inner cavity of the mounting frame through a bearing, a toothed splicing plate is slidably arranged on the rear side of the centrifuge housing, the top of the toothed splicing plate is fixedly connected with an inclined plate used in conjunction with the pressure rod, a rotating rod is rotatably arranged on the rear side of the centrifuge housing through a bearing, a gear meshing with the toothed splicing plate is fixedly connected to the surface of the rotating rod, one end of the rotating rod extends to the interior of the centrifuge housing, and the end of the rotating rod extending to the interior of the centrifuge housing is fixedly connected with a cam used in conjunction with a movable plate.

[0007] Preferably, the pre-discharge mechanism includes an inner conical annular liner, which is fixedly arranged on the inner wall of the centrifuge housing, and the inner wall of the sample bottle tube sleeve is slidably provided with a sliding pad by opening a sliding groove, and the bottom of the sliding pad is fixedly connected to a push rod, and the bottom end of the push rod is provided with a ball that is used in conjunction with the inner conical annular liner.

[0008] Preferably, the positioning and compacting mechanism includes a T-handle, which is slidably arranged inside the cover, and the front and rear sides of both sides of the T-handle are provided with receiving grooves, and the receiving grooves are communicated with the inner cavity of the cover, and the inside of the receiving groove is slidably connected with a card block, and a second spring is fixedly connected between the card block and the receiving groove, and both sides of the inner cavity of the centrifuge housing are provided with card slots for matching with the card block, and there are several card slots, one end of the card block is fixedly connected with a Z-type displacement plate, and one end of the Z-type displacement plate extends to the interior of the cover, the front and rear sides of both sides of the T-handle are fixedly connected with a handle inclined block, the top of the Z-type displacement plate is rotatably provided with a rotating column for matching with the handle inclined block through a bearing, and the bottom of the cover is rotatably provided with an outer conical ring gasket for matching with the arc-shaped inclined block through a bearing.

[0009] Preferably, a limiting groove is provided on the rear side of the centrifuge housing, the limiting groove is internally slidably connected to a limiting slider, a first spring is fixedly connected between the limiting slider and the limiting groove, and the rear side of the limiting slider is fixedly connected to the front side of the tooth splicing plate.

[0010] Preferably, a first rotating sleeve for use with a large-aperture ring is rotatably provided on the surface of the Z-shaped movable rod, and a second rotating sleeve for use with a small-aperture ring is rotatably provided on the surface of the Z-shaped movable rod and located at the bottom of the first rotating sleeve.

[0011] Preferably, a second limiting sleeve is fixedly connected to both sides of the bottom of the inner cavity of the centrifuge housing, a second limiting rod is slidably connected inside the second limiting sleeve, and the top end of the second limiting rod is fixedly connected to the bottom of the movable plate, and a second return spring is fixedly connected between the second limiting rod and the second limiting sleeve.

[0012] Preferably, guide slots are provided on both sides of the inner cavity of the centrifuge housing, guide sliders are slidably connected inside the guide slots, and opposite sides of the two guide sliders are fixedly connected to both sides of the movable plate respectively.

[0013] The present invention also discloses a control method for a variable speed centrifuge for pharmaceutical production, which specifically comprises the following steps:

[0014] S1. When in use: multiple sample bottles containing sample solutions are placed in the interior of several sample bottle sleeves in sequence, and then the caps are covered and the drive motor is started. The drive motor starts to drive the multi-faceted shaft to rotate, and the multi-faceted shaft drives the inner multi-faceted sleeve and several sample bottle sleeves to rotate, thereby centrifuging the sample bottles containing the medicine. Before the drive motor is started, the speed of the drive motor needs to be adjusted through the control panel on the front side of the centrifuge housing;

[0015] S2. When taking out the sample bottle:

[0016] Step 1, sample bottle release: the operator first turns off the drive motor, and then simultaneously grips the front handle and T-handle of the cap, and as the T-handle moves closer to the handle, the T-handle will simultaneously drive the inclined block with handle to move forward, and the inclined block with handle moves forward and its inclined surface simultaneously tightens and squeezes the rotating column, causing the rotating column to drive the Z-type displacement plate to move horizontally, and the Z-type displacement plate moves horizontally to drive the card block to retract to the storage slot, causing multiple card blocks to synchronously disengage from the limit fit with the card slot, and then keep the current grip and flip the cap backward. After the cap is flipped 180 degrees, release the T-handle, causing the card block to rely on the second spring for elastic reset. When the card block originally on the rear side is flipped with the cap and relies on the second spring for elastic reset, it will be limited with the rearmost card slot, thereby causing the cap to flip and be fixed on the top of the centrifuge housing, and then release the cap. After the cap is flipped, the outer conical ring gasket and several arc-shaped oblique blocks are synchronously driven to disengage from the tight fit;

[0017] Step 2. Deformation of the sample bottle extraction range: During the above-mentioned capping flipping process, the capping synchronously drives the mounting frame and the pressure rod to flip. During the period when the pressure rod changes from the flipping state of 90 degrees to 180 degrees, the pressure rod will squeeze the inclined plate by flipping downward, causing the inclined plate to drive the toothed splicing plate to descend. The descending toothed splicing plate will mesh with the gear, causing the rotating rod to drive the cam to rotate. After the inclined plate and the toothed splicing plate are forced to fall into place, the corresponding rotating rod will drive the cam to rotate 90 degrees. The rotation of the cam 90 degrees will lift the movable plate upward, and the movable plate will synchronously lift the inner polygonal sleeve, and the inner polygonal sleeve will drive several first limit positions The sleeve, the first limiting rod, the first return spring, the arc-shaped inclined block and the sample bottle tube sleeve rise, and the first limiting rod rises synchronously to drive the Z-shaped movable rod to rise. The end of the Z-shaped movable rod rises and moves out of the coverage range of the small-aperture ring, and continues to rise, prompting the inclined surface of the Z-shaped movable rod to be squeezed and matched with the large-aperture ring. During the process of squeezing the large-aperture ring with the Z-shaped movable rod that has left the coverage range of the small-aperture ring, the Z-shaped movable rod will continuously drive the first limiting rod, the arc-shaped inclined block, the sample bottle tube sleeve and the sample bottle to move outward concentrically, thereby prompting the multiple arc-shaped inclined blocks to carry the sample bottle tube sleeve and the sample bottle to be lifted and spread out concentrically.

[0018] Step three, the sample bottle is partially extended automatically: in the process of the sample bottle sleeve being lifted and concentrically expanded along with the arc-shaped inclined block, the sample bottle sleeve synchronously drives the sliding pad and the push rod to move, and in the process of the push rod synchronously rising and expanding, the push rod will drive the ball to stick to the inner wall of the inclined surface of the inner conical annular liner, and be squeezed and approached by the inner wall of the inclined surface of the inner conical annular liner, so that the ball drives the push rod and the sliding pad to advance into the sample bottle sleeve, and the sliding pad pushes inside the sample bottle sleeve, and will push the sample bottle partially to the top of the sample bottle sleeve.

[0019] Preferably, in step three, two slide grooves are symmetrically provided on the inner wall of the sample bottle tube sleeve, and a sliding block corresponding to the slide groove is fixedly connected to the surface of the sliding pad.

[0020] Beneficial Effects

[0021] The present invention provides a variable speed centrifuge for pharmaceutical production and a control method thereof. Compared with the prior art, it has the following beneficial effects:

[0022] (1) The variable speed centrifuge and control method for pharmaceutical preparation, by arranging a space deformation mechanism, a pre-discharging mechanism and a positioning and compacting mechanism between the centrifuge housing, the sealing cap and the driving motor, enables the device to automatically lift and disperse the concentric displacement of a plurality of arc-shaped inclined blocks by relying on the coordinated cooperation of the space deformation mechanism, the pre-discharging mechanism and the positioning and compacting mechanism when the sample bottle needs to be taken, thereby expanding and improving the sampling space and position between the plurality of arc-shaped inclined blocks, further facilitating the operator to manually take and place the sample, and synchronously adjusting the position of the arc-shaped inclined blocks during the process of the arc-shaped inclined blocks rising and concentric displacement. The sample bottle inside the sample bottle tube sleeve is partially ejected to enhance the convenience of taking the sample bottle, and the different opening and closing states of the cover and the centrifuge shell are limited and fixed by the positioning and compacting mechanism at the same time, so that when sampling, the positioning and compacting mechanism can provide stable support for the rise and concentric displacement of the arc-shaped inclined block by limiting the cover and the centrifuge shell in the expanded state, and when centrifuging the sample, the positioning and compacting mechanism can promote the simultaneous concentric closure and restoration of several arc-shaped inclined blocks by limiting the closing of the cover and the centrifuge shell, and simultaneously press and fix several restored arc-shaped inclined blocks to ensure that the sample bottle will not be thrown out by centrifugation.

[0023] (2) The variable speed centrifuge for pharmaceutical production and the control method thereof are characterized in that the first rotating sleeve and the second rotating sleeve are respectively rotatably arranged on the top and the bottom of the surface of the Z-shaped movable rod, so that when a plurality of Z-shaped movable rods are within the common coverage of the small-aperture ring and the large-aperture ring, and the Z-shaped movable rods rotate along with the first limiting rod and the arc-shaped inclined block, the Z-shaped movable rods can perform circumferential rolling with the inner walls of the small-aperture ring and the large-aperture ring through the first rotating sleeve and the second rotating sleeve, thereby avoiding the problem of easy wear caused by hard friction.

[0024] (3) The variable speed centrifuge and control method for pharmaceutical production, by arranging a ball at the end of the push rod, enables the push rod to be squeezed and fitted with the inner conical annular liner, so that when the push rod carries a sliding pad to partially eject the sample bottle, the push rod can roll and squeeze on the inner wall of the inner conical annular liner with the help of the ball, making the extrusion displacement of the sliding pad smoother.

[0025] (4) The variable speed centrifuge and control method for pharmaceutical production, by rotating the pressure rod inside the mounting frame, enables the pressure rod to rotate and squeeze the inclined plate during the process of cooperative capping, thereby facilitating the smooth downward movement of the inclined plate and the tooth joint plate, thereby avoiding hard friction between the pressure rod and the inclined plate, which would cause a large friction coefficient. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the external structure of the present invention;

[0027] Figure 2 It is a rear view of the centrifuge housing structure of the present invention;

[0028] Figure 3 A side view of the internal structure of the centrifuge housing of the present invention;

[0029] Figure 4 is a cross-sectional view of the centrifuge housing structure of the present invention;

[0030] Figure 5 It is an expanded view of the polygonal shaft and inner polygonal sleeve structure of the present invention;

[0031] Figure 6 It is an expanded view of the internal structure of the second limiting sleeve of the present invention;

[0032] Figure 7 A schematic diagram of the internal structure of the sample bottle sleeve of the present invention;

[0033] Figure 8 It is a schematic diagram of the small-aperture collar and the large-aperture collar structure of the present invention;

[0034] Fig. 9 For the present invention Figure 3 A partial enlarged view of the middle A;

[0035] Fig.10 It is a schematic diagram of the structure of the spatial deformation mechanism of the present invention;

[0036] Fig.11 It is a cross-sectional view of the inner conical annular liner structure of the present invention;

[0037] Fig.12 A top view of the internal structure of the cover of the present invention;

[0038] Fig.13 For the present invention Fig.12 A partial enlarged view of point B in the middle;

[0039] Fig.14 For the present invention Fig.12 A partial enlarged view of point C in the middle.

[0040] In the figure: 1, centrifuge housing; 2, cover; 3, drive motor; 4, polygonal shaft; 5, movable plate; 6, inner polygonal sleeve; 7, spatial deformation mechanism; 701, U-shaped bracket with handle; 702, small aperture collar; 703, large aperture collar; 704, Z-shaped movable rod; 705, mounting frame; 706, pressure rod; 707, tooth splicing plate; 708, inclined plate; 709, rotating rod; 710, gear; 711, cam; 712, limit slide; 713, limit slider; 714, first spring; 715, first rotating sleeve; 716, second rotating sleeve; 8, pre-discharging mechanism; 801, inner conical ring shaped inner liner; 802, sliding pad; 803, pushing rod; 804, ball bearing; 9, positioning and compacting mechanism; 901, T-handle; 902, storage slot; 903, clamping block; 904, second spring; 905, clamping slot; 906, Z-type displacement plate; 907, inclined block with handle; 908, rotating column; 909, outer conical ring gasket; 10, first limiting sleeve; 11, first limiting rod; 12, first return spring; 13, arc-shaped inclined block; 14, sample bottle tube sleeve; 15, sample bottle; 16, second limiting sleeve; 17, second limiting rod; 18, second return spring; 19, guide slide groove; 20, guide slider. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0042] See also Figure 1-14 The present invention provides a technical solution: a variable-speed centrifuge for pharmaceutical preparation, comprising a centrifuge housing 1 and a cover 2, the cover 2 is rotatably arranged between the two sides of the inner cavity of the centrifuge housing 1 through a rotating shaft, a driving motor 3 is fixedly connected to the bottom of the inner cavity of the centrifuge housing 1, the output shaft of the driving motor 3 is fixedly connected to a polygonal shaft 4 through a coupling, a movable plate 5 is slidably connected inside the centrifuge housing 1, an inner polygonal sleeve 6 used in conjunction with the polygonal shaft 4 is rotatably arranged inside the movable plate 5 through a bearing, a plurality of first limiting sleeves 10 are equidistantly and fixedly connected around the surface of the inner polygonal sleeve 6, a first limiting rod 11 is slidably connected inside the first limiting sleeve 10, and a first reset spring 12 is fixedly connected between the first limiting rod 11 and the first limiting sleeve 10, one end of the first limiting rod 11 is fixedly connected to an arc-shaped inclined block 13, a sample bottle tube sleeve 14 is installed inside the arc-shaped inclined block 13, and a sample bottle 15 is placed inside the sample bottle tube sleeve 14;

[0043] As a detailed explanation: a second limiting sleeve 16 is fixedly connected to both sides of the bottom of the inner cavity of the centrifuge housing 1, a second limiting rod 17 is slidably connected inside the second limiting sleeve 16, and the top of the second limiting rod 17 is fixedly connected to the bottom of the movable plate 5, a second return spring 18 is fixedly connected between the second limiting rod 17 and the second limiting sleeve 16, and a guide groove 19 is opened on both sides of the inner cavity of the centrifuge housing 1, and a guide slider 20 is slidably connected inside the guide groove 19, and the opposite sides of the two guide sliders 20 are fixedly connected to the two sides of the movable plate 5 respectively.

[0044] As a preferred embodiment: in order to facilitate the automatic lifting of the height of the arc-shaped inclined block 13 and to concentrically disperse the positions of several arc-shaped inclined blocks 13 to expand the space for manual sample extraction, a space deformation mechanism 7 is provided on the cover 2 and the centrifuge housing 1, and the space deformation mechanism 7 includes a U-shaped handle bracket 701, and the U-shaped handle bracket 701 is fixedly arranged on the front side of the inner cavity of the centrifuge housing 1, and the top of the U-shaped handle bracket 701 is respectively fixedly provided with a small-aperture collar 702 and a large-aperture collar 703 through a vertical rod, and the bottom of the first limiting rod 11 is fixedly connected with a Z-shaped movable rod 704 used in conjunction with the small-aperture collar 702 and the large-aperture collar 703, and the top of the cover 2 is fixedly connected with a mounting frame 705, and a pressure rod 706 is rotatably provided between the two sides of the inner cavity of the mounting frame 705 through a bearing, and a tooth splicing plate 707 is slidably provided on the rear side of the centrifuge housing 1, and the top of the tooth splicing plate 707 is fixedly connected with an inclined plate 708 used in conjunction with the pressure rod 706. A rotating rod 709 is rotatably provided on the rear side of the centrifuge housing 1 through a bearing, a gear 710 meshing with the tooth splicing plate 707 is fixedly connected to the surface of the rotating rod 709, one end of the rotating rod 709 extends to the interior of the centrifuge housing 1, and one end of the rotating rod 709 extending to the interior of the centrifuge housing 1 is fixedly connected to a cam 711 used in conjunction with the movable plate 5, a limited sliding groove 712 is provided on the rear side of the centrifuge housing 1, and a limited sliding block 713 is slidably connected inside the limited sliding groove 712, and a first spring 714 is fixedly connected between the limited sliding block 713 and the limited sliding groove 712, and the rear side of the limited sliding block 713 is fixedly connected to the front side of the tooth splicing plate 707, a first rotating sleeve 715 used in conjunction with the large aperture ring 703 is rotatably provided on the surface of the Z-shaped movable rod 704, and a second rotating sleeve 716 used in conjunction with the small aperture ring 702 is rotatably provided on the surface of the Z-shaped movable rod 704 and located at the bottom of the first rotating sleeve 715.

[0045] As a preferred embodiment: in order to facilitate the partial pushing out of the sample bottle 15 so as to make the extraction more convenient, a pre-discharge mechanism 8 is provided on the centrifuge housing 1 and the sample bottle tube sleeve 14, and the pre-discharge mechanism 8 includes an inner conical annular liner 801, and the inner conical annular liner 801 is fixedly arranged on the inner wall of the centrifuge housing 1, and the inner wall of the sample bottle tube sleeve 14 is provided with a sliding pad 802 by opening a sliding groove for sliding, and the bottom of the sliding pad 802 is fixedly connected with a push rod 803, and the bottom end of the push rod 803 is provided with a ball 804 used in conjunction with the inner conical annular liner 801.

[0046] As a preferred embodiment: In order to facilitate the lifting and concentric displacement of the arc-shaped inclined block 13 and provide a stable support, and to facilitate the compaction of the arc-shaped inclined block 13 in the closed state, a positioning and compacting mechanism 9 is provided on the cover 2, and the positioning and compacting mechanism 9 includes a T-shaped handle 901, and the T-shaped handle 901 is slidably arranged inside the cover 2, and the front and rear sides of both sides of the T-shaped handle 901 are provided with a receiving groove 902, and the receiving groove 902 is connected to the inner cavity of the cover 2, and the inside of the receiving groove 902 is slidably connected with a clamping block 903, and a second spring 90 is fixedly connected between the clamping block 903 and the receiving groove 902. 4. Both sides of the inner cavity of the centrifuge housing 1 are provided with card slots 905 used in conjunction with the card block 903, and a plurality of card slots 905 are provided. One end of the card block 903 is fixedly connected with a Z-type displacement plate 906, and one end of the Z-type displacement plate 906 extends to the interior of the cover 2. The front and rear sides of both sides of the T-shaped handle 901 are fixedly connected with a handle inclined block 907. The top of the Z-type displacement plate 906 is rotatably provided with a rotating column 908 used in conjunction with the handle inclined block 907 through a bearing. The bottom of the cover 2 is rotatably provided with an outer conical ring gasket 909 used in conjunction with the arc-shaped inclined block 13 through a bearing.

[0047] The present invention also discloses a control method for a variable speed centrifuge for pharmaceutical production, which specifically comprises the following steps:

[0048] S1. When in use: multiple sample bottles 15 containing sample solutions are sequentially placed inside several sample bottle sleeves 14, and then the cover 2 is covered and the drive motor 3 is started. The drive motor 3 starts to drive the multi-faceted shaft 4 to rotate, and the multi-faceted shaft 4 drives the inner multi-faceted sleeve 6 and several sample bottle sleeves 14 to rotate, thereby centrifuging the sample bottles 15 containing the medicine. Before the drive motor 3 is started, the speed of the drive motor 3 needs to be adjusted through the control panel on the front side of the centrifuge housing 1;

[0049] S2, when the sample bottle 15 is taken out:

[0050] Step 1, sample bottle 15 is released: the operator first turns off the drive motor 3, and then simultaneously holds the front handle of the cap 2 and the T-handle 901, and as the T-handle 901 moves closer to the handle, the T-handle 901 will simultaneously drive the inclined block 907 with handle to move forward, and the inclined block 907 with handle moves forward and its inclined surface simultaneously tightens and squeezes the rotating column 908, causing the rotating column 908 to drive the Z-type displacement plate 906 to move horizontally, and the Z-type displacement plate 906 moves horizontally to drive the card block 903 to retract to the storage slot 902, causing multiple card blocks 903 to synchronously break away from the card slot 905. The cover 2 is then turned back to the original position, and the cover 2 is then turned back to the original position. After the cover 2 is turned back 180 degrees, the T-shaped handle 901 is released to cause the block 903 to be elastically reset by the second spring 904. When the block 903 originally at the rear side is turned over with the cover 2 and elastically reset by the second spring 904, it will be limited with the last side slot 905, thereby causing the cover 2 to be turned over and fixed on the top of the centrifuge housing 1. Then the cover 2 can be released. After the cover 2 is turned over, the outer conical ring gasket 909 and the plurality of arc-shaped inclined blocks 13 are simultaneously driven to be out of the tight fit.

[0051] Step 2, deformation of the extraction range of the sample bottle 15: during the above-mentioned flipping process of the cover 2, the cover 2 synchronously drives the mounting frame 705 and the pressure rod 706 to flip, and during the period when the pressure rod 706 changes from the flipping state of 90 degrees to 180 degrees, the pressure rod 706 will squeeze the inclined plate 708 by flipping downward, causing the inclined plate 708 to drive the tooth splicing plate 707 to descend, and the tooth splicing plate 707 will mesh with the gear 710 when it descends, causing the rotating rod 709 to drive the cam 711 to rotate, and after the inclined plate 708 and the tooth splicing plate 707 are forced to fall into place, the corresponding rotating rod 709 will drive the cam 711 to rotate 90 degrees, and the cam 711 will rotate 90 degrees to lift the movable plate 5 upward, and the movable plate 5 will synchronously lift the inner polygonal sleeve 6, and the inner polygonal sleeve 6 will drive a number of first limiting plates The positioning sleeve 10, the first limiting rod 11, the first return spring 12, the arc-shaped inclined block 13 and the sample bottle tube sleeve 14 rise, and the first limiting rod 11 rises and synchronously drives the Z-shaped movable rod 704 to rise. The end of the Z-shaped movable rod 704 rises and moves out of the coverage range of the small-aperture collar 702, and continues to lift, prompting the inclined surface of the Z-shaped movable rod 704 to be squeezed and matched with the large-aperture collar 703. During the process of squeezing the large-aperture collar 703, the Z-shaped movable rod 704 that has escaped the coverage range of the small-aperture collar 702 will continuously drive the first limiting rod 11, the arc-shaped inclined block 13, the sample bottle tube sleeve 14 and the sample bottle 15 to move outward concentrically, thereby prompting the multiple arc-shaped inclined blocks 13 to carry the sample bottle tube sleeve 14 and the sample bottle 15 to be lifted and spread out concentrically.

[0052] Step three, the sample bottle 15 is partially extended automatically: the sample bottle sleeve 14 is lifted and expanded concentrically along with the arc-shaped inclined block 13, and the sample bottle sleeve 14 synchronously drives the slide pad 802 and the push rod 803 to move. During the synchronous rise and expansion of the push rod 803, the push rod 803 will drive the ball 804 to stick to the inner wall of the inner cavity of the inner conical annular liner 801, and be squeezed and approached by the inner wall of the inner conical annular liner 801, so that the ball 804 drives the push rod 803 and the slide pad 802 to advance into the sample bottle sleeve 14. The slide pad 802 is pushed inside the sample bottle sleeve 14, and the sample bottle 15 is partially pushed out to the top of the sample bottle sleeve 14, wherein the inner wall of the sample bottle sleeve 14 is symmetrically provided with two slide grooves, and the surface of the slide pad 802 is fixedly connected with a slider corresponding to the slide groove.

Claims

1. A variable speed centrifuge for pharmaceutical production, comprising a centrifuge housing (1) and a cover (2), wherein the cover (2) is rotatably arranged between two sides of an inner cavity of the centrifuge housing (1) via a rotating shaft, and characterized in that: A driving motor (3) is fixedly connected to the bottom of the inner cavity of the centrifuge housing (1); the output shaft of the driving motor (3) is fixedly connected to a polygonal shaft (4) via a coupling; a movable plate (5) is slidably connected to the interior of the centrifuge housing (1); an inner polygonal sleeve (6) used in conjunction with the polygonal shaft (4) is rotatably arranged inside the movable plate (5) via a bearing; a plurality of first limiting sleeves (10) are fixedly connected to the surface of the inner polygonal sleeve (6) at equal intervals; a first limiting rod (11) is slidably connected to the interior of the first limiting sleeve (10); and the first limiting rod (11) is slidably connected to the interior of the first limiting sleeve (10). A first return spring (12) is fixedly connected between the rod (11) and the first limiting sleeve (10); one end of the first limiting rod (11) is fixedly connected to an arc-shaped inclined block (13); a sample bottle sleeve (14) is installed inside the arc-shaped inclined block (13); a sample bottle (15) is placed inside the sample bottle sleeve (14); a space deformation mechanism (7) is provided on the cover (2) and the centrifuge housing (1); a pre-discharging mechanism (8) is provided on the centrifuge housing (1) and the sample bottle sleeve (14); and a positioning and compacting mechanism (9) is provided on the cover (2).

2. A variable speed centrifuge for pharmaceutical production according to claim 1, characterized in that: The spatial deformation mechanism (7) comprises a U-shaped bracket with a handle (701), the U-shaped bracket with a handle (701) is fixedly arranged on the front side of the inner cavity of the centrifuge housing (1), a small-aperture collar (702) and a large-aperture collar (703) are fixedly arranged on the top of the U-shaped bracket with a handle through a vertical rod, a Z-shaped movable rod (704) matched with the small-aperture collar (702) and the large-aperture collar (703) is fixedly connected to the bottom of the first limiting rod (11), a mounting frame (705) is fixedly connected to the top of the cover (2), and a pressure rod (706) is rotatably arranged between the two sides of the inner cavity of the mounting frame (705) through a bearing, A toothed splicing plate (707) is slidably provided on the rear side of the centrifuge housing (1); a slanted plate (708) matched with the pressure rod (706) is fixedly connected to the top of the toothed splicing plate (707); a rotating rod (709) is rotatably provided on the rear side of the centrifuge housing (1) via a bearing; a gear (710) meshing with the toothed splicing plate (707) is fixedly connected to the surface of the rotating rod (709); one end of the rotating rod (709) extends into the interior of the centrifuge housing (1); and one end of the rotating rod (709) extending into the interior of the centrifuge housing (1) is fixedly connected to a cam (711) matched with the movable plate (5).

3. A variable speed centrifuge for pharmaceutical production according to claim 1, characterized in that: The pre-discharge mechanism (8) comprises an inner conical annular liner (801), the inner conical annular liner (801) is fixedly arranged on the inner wall of the centrifuge housing (1), the inner wall of the sample bottle tube sleeve (14) is slidably provided with a sliding pad (802) by opening a sliding groove, the bottom of the sliding pad (802) is fixedly connected to a push rod (803), and the bottom end of the push rod (803) is provided with a ball (804) used in conjunction with the inner conical annular liner (801).

4. A variable speed centrifuge for pharmaceutical production according to claim 1, characterized in that: The positioning and compacting mechanism (9) comprises a T-shaped handle (901), the T-shaped handle (901) being slidably arranged inside the cover (2), the front side and the rear side of both sides of the T-shaped handle (901) being provided with a receiving groove (902), and the receiving groove (902) being communicated with the inner cavity of the cover (2), the interior of the receiving groove (902) being slidably connected with a clamping block (903), and a second spring (904) being fixedly connected between the clamping block (903) and the receiving groove (902), and both sides of the inner cavity of the centrifuge housing (1) being provided with a clamping groove (905) matched with the clamping block (903) ), and a plurality of card slots (905) are provided, one end of the card block (903) is fixedly connected to a Z-shaped displacement plate (906), and one end of the Z-shaped displacement plate (906) extends to the interior of the cover (2), the front and rear sides of both sides of the T-shaped handle (901) are fixedly connected to a handle-bearing inclined block (907), the top of the Z-shaped displacement plate (906) is rotatably provided with a rotating column (908) used in conjunction with the handle-bearing inclined block (907), and the bottom of the cover (2) is rotatably provided with an outer conical ring gasket (909) used in conjunction with the arc-shaped inclined block (13) through a bearing.

5. A variable speed centrifuge for pharmaceutical production according to claim 2, characterized in that: A limiting slide groove (712) is provided on the rear side of the centrifuge housing (1); a limiting slider (713) is slidably connected inside the limiting slide groove (712); a first spring (714) is fixedly connected between the limiting slider (713) and the limiting slide groove (712); and the rear side of the limiting slider (713) is fixedly connected to the front side of the tooth splicing plate (707).

6. A variable speed centrifuge for pharmaceutical production according to claim 2, characterized in that: A first rotating sleeve (715) for use with a large-aperture collar (703) is rotatably provided on the surface of the Z-shaped movable rod (704), and a second rotating sleeve (716) for use with a small-aperture collar (702) is rotatably provided on the surface of the Z-shaped movable rod (704) and located at the bottom of the first rotating sleeve (715).

7. A variable speed centrifuge for pharmaceutical production according to claim 1, characterized in that: A second limiting sleeve (16) is fixedly connected to both sides of the bottom of the inner cavity of the centrifuge housing (1), a second limiting rod (17) is slidably connected inside the second limiting sleeve (16), and the top end of the second limiting rod (17) is fixedly connected to the bottom of the movable plate (5), and a second return spring (18) is fixedly connected between the second limiting rod (17) and the second limiting sleeve (16).

8. A variable speed centrifuge for pharmaceutical production according to claim 1, characterized in that: Guide grooves (19) are provided on both sides of the inner cavity of the centrifuge housing (1), and guide sliders (20) are slidably connected inside the guide grooves (19), and opposite sides of the two guide sliders (20) are fixedly connected to the two sides of the movable plate (5) respectively.

9. A control method for a variable speed centrifuge for pharmaceutical production, characterized in that: The specific steps include: S1. When in use: a plurality of sample bottles (15) containing sample solutions are sequentially placed inside a plurality of sample bottle tube sleeves (14), and then the sealing cap (2) is covered and the driving motor (3) is started. The driving motor (3) starts to drive the multi-faceted shaft (4) to rotate, and the multi-faceted shaft (4) drives the inner multi-faceted sleeve (6) and a plurality of sample bottle tube sleeves (14) to rotate, thereby centrifuging the sample bottles (15) containing the medicine. Before the driving motor (3) is started, the speed of the driving motor (3) needs to be adjusted through the control panel on the front side of the centrifuge housing (1); S2. When the sample bottle (15) is taken out: Step 1, releasing the fixation of the sample bottle (15): the operator first turns off the drive motor (3), and then simultaneously tightly grasps the front handle of the cover (2) and the T-handle (901). As the T-handle (901) moves closer to the handle, the T-handle (901) will simultaneously drive the inclined block with handle (907) to move forward. The inclined surface of the inclined block with handle (907) moves forward to simultaneously tighten and squeeze the rotating column (908), causing the rotating column (908) to drive the Z-type displacement plate (906) to move horizontally. The Z-type displacement plate (906) moves horizontally to drive the card block (903) to retract to the storage slot (902), causing multiple card blocks (903) to synchronously disengage from the card slot (905). The cover (2) is then turned backwards while maintaining the tight grip. After the cover (2) is turned 180 degrees, the T-shaped handle (901) is released, prompting the clamping block (903) to be elastically reset by relying on the second spring (904). The clamping block (903) originally at the rear side is turned along with the cover (2) and elastically reset by relying on the second spring (904), and it will be limited with the rearmost clamping groove (905), thereby prompting the cover (2) to be turned and fixed on the top of the centrifuge housing (1). The cover (2) is then released. After the cover (2) is turned, it simultaneously drives the outer conical ring gasket (909) and the plurality of arc-shaped inclined blocks (13) to be released from the tight fit. Step 2: Deformation of the extraction range of the sample bottle (15): During the above-mentioned flipping of the cover (2), the cover (2) synchronously drives the mounting frame (705) and the pressure rod (706) to flip. During the period when the pressure rod (706) flips from 90 degrees to 180 degrees, the pressure rod (706) will flip downward to squeeze the inclined plate (708), causing the inclined plate (708) to drive the tooth splicing plate (707) to descend, and the tooth splicing plate (707) ) descends and meshes with the gear (710), prompting the rotating rod (709) to drive the cam (711) to rotate. After the inclined plate (708) and the tooth splicing plate (707) are forced to descend to their proper positions, the corresponding rotating rod (709) drives the cam (711) to rotate 90 degrees. The cam (711) rotates 90 degrees to lift the movable plate (5) upward. The movable plate (5) simultaneously lifts the inner polygonal sleeve (6). The inner polygonal sleeve (6) drives a plurality of first The limiting sleeve (10), the first limiting rod (11), the first return spring (12), the arc-shaped inclined block (13) and the sample bottle tube sleeve (14) rise, and the rising of the first limiting rod (11) synchronously drives the Z-shaped movable rod (704) to rise. When the Z-shaped movable rod (704) rises, its end moves out of the coverage range of the small-aperture collar (702), and by continuing to rise, the inclined surface of the Z-shaped movable rod (704) and the large-aperture collar (703) are squeezed. In the process of press-fitting, when the Z-shaped movable rod (704) that has escaped from the coverage of the small-aperture collar (702) is pressed against the large-aperture collar (703), the Z-shaped movable rod (704) will continuously drive the first limit rod (11), the arc-shaped inclined block (13), the sample bottle tube sleeve (14) and the sample bottle (15) to move outward concentrically, thereby causing the multiple arc-shaped inclined blocks (13) to carry the sample bottle tube sleeve (14) and the sample bottle (15) to be lifted and spread out concentrically; Step 3, the sample bottle (15) is partially extended automatically: when the sample bottle sleeve (14) is lifted and coaxially unfolded along with the arc-shaped inclined block (13), the sample bottle sleeve (14) simultaneously drives the sliding pad (802) and the push rod (803) to move. When the push rod (803) is synchronously lifted and unfolded, the push rod (803) drives the ball (804) to contact the inner wall of the inner conical annular liner (801) and squeeze the inner wall of the inner conical annular liner (801) to approach the ball (804), so that the ball (804) drives the push rod (803) and the sliding pad (802) to advance into the sample bottle sleeve (14). When the sliding pad (802) is pushed into the sample bottle sleeve (14), the sample bottle (15) is partially pushed out to the top of the sample bottle sleeve (14).

10. The control method of a variable speed centrifuge for pharmaceutical production according to claim 9, characterized in that: In step three, two slide grooves are symmetrically provided on the inner wall of the sample bottle tube sleeve (14), and a sliding block corresponding to the slide grooves is fixedly connected to the surface of the sliding pad (802).

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