CN116078232A - An oscillator for hospital pharmaceutical experiments - Google Patents

Abstract

An oscillator for hospital pharmacy experiments has the problems that the prior oscillator has single function and poor oscillation effect, and can not be used for mixing different types of experimental containers respectively or simultaneously; the device comprises a shell, wherein a fixed block is fixedly connected to the upper end of the shell, a groove is formed in the fixed block, a continuous uneven guide surface is arranged at the edge of the groove, a turntable is arranged in the groove, a plurality of guide grooves which are uniformly distributed on the circumference are formed in the turntable, the central axes of the guide grooves meet the center of the turntable, a sliding block is connected in each guide groove in a sliding manner, a first spring is fixedly connected between the sliding block and the guide groove, an adjustable positioning seat is arranged in the shell, a driving shaft is rotationally connected to the positioning seat, the driving shaft is fixedly connected with the turntable, a driving structure capable of driving the driving shaft is fixedly connected to the positioning seat, and a placing rack is arranged on each sliding block; the device avoids the workload brought to the staff by hand shaking, saves time and labor, has better mixing effect and improves the working efficiency of the medical staff.

Description

An oscillator for hospital pharmaceutical experiments

technical field

The invention belongs to the technical field of medical auxiliary equipment, in particular to an oscillator for hospital pharmacy experiments.

Background technique

In pharmaceutical experiments, dissolving solid reagents is a common operation process. Most of the technologies currently used are to add solid reagents into conical flasks with lysing solutions, and then manually shake the solid reagents to speed up the dissolution. It is very inconvenient, inefficient, time-consuming and labor-intensive for the frequently-operated pharmaceutical experiment process, which increases the difficulty of work for the experimenters and reduces the efficiency of the pharmaceutical experiment. waste of liquid medicine;

In addition, the test tube is also an instrument used in the chemical laboratory. It is used as a reaction container for a small amount of reagents. In order to fully mix the reagents, the test tube often needs to be shaken. At present, the shaking of the test tube is carried out by medical workers, which is also time-consuming and laborious. , although at present there are also some oscillators for use by medical personnel, but their functions are single, and medical personnel sometimes simultaneously mix and oscillate containers such as test tubes or Erlenmeyer flasks at the same time to improve work efficiency.

Contents of the invention

Aiming at the above technical problems, the present invention provides an oscillator for hospital pharmacy experiments, which solves the problem that the current oscillator has single function, poor oscillation effect, and cannot mix different types of experimental containers separately or simultaneously.

In order to achieve the above object, the present invention provides the following technical solutions: including a housing, the upper end of the housing is fixedly connected with a fixed block, the fixed block is provided with a groove, and the edge of the groove is provided with a continuous concave-convex shape On the guide surface, a turntable is arranged inside the groove, and a plurality of evenly distributed guide grooves are arranged on the turntable. There is a slider, the first spring is fixedly connected between the slider and the guide groove so that the outer edge of the slider is always in contact with the edge of the groove, and the inside of the housing is provided with a positioning seat that can reciprocate left and right , the positioning seat is rotatably connected with a drive shaft, the drive shaft is fixedly connected with the turntable, the positioning seat is fixedly connected with a drive structure that can drive the drive shaft, and each slider is provided with a placement frame, so A moving rod is vertically slidably connected to the slider, a second spring is fixedly connected between the moving rod and the slider, the upper end of the moving rod is fixedly connected to a placement frame, and a top shaft is fixedly connected to the placement frame , the center of the turntable is provided with an end cam fixedly connected with the positioning seat, and the top shaft is in contact with the end cam.

Preferably, a placement platform is provided above the housing, four guide rods are fixedly connected to the bottom of the placement platform, and four sliding rods are slidingly connected to the left and right of the housing, and the sliding rods are connected to the guide rods. There is one-to-one correspondence between the rods, and the sliding connection between the guide rod and its corresponding sliding rod is fixed. The connected guide block, the upper end surface of the guide block is a curved surface, the limit block is fixedly connected to the guide rod, and the limit block and the slide bar are fixedly connected with a sleeve sleeved on the guide rod. third spring.

Preferably, the front end of the placing platform is provided with a notch, and the upper end surface of the placing platform is provided with a placing groove, and a plurality of elastic ropes fixedly connected with the placing platform are arranged in the placing groove, and the plurality of elastic ropes are in the form of a grid. status settings.

Preferably, the drive structure includes a first bevel gear fixedly connected to the drive shaft, a second bevel gear meshed with the first bevel gear is rotatably connected to the positioning seat, and the second bevel gear is fixedly connected with a The first driving motor on the positioning seat, the first driving disc is fixedly connected to the driving shaft, and the first connecting rod is hinged on the eccentric position of the first driving disc, and the first connecting rod is far away from the first driving disc One end is hinged to the housing.

Preferably, the drive mechanism includes a drive gear fixedly connected to the drive shaft, the drive gear is meshed with a fixed rack, the fixed rack can be slid left and right inside the housing, and the housing is fixedly connected with a second rack. Two driving motors, the output end of the second driving motor is fixedly connected with the second driving disc, the eccentric position of the second driving disc is hinged with a second connecting rod, and the second connecting rod is away from the second driving disc One end is hinged with the positioning seat.

Preferably, an adjusting lead screw is threadedly connected to the fixed rack, and the adjusting lead screw is rotatably connected to the housing, and a reciprocatingly rotatable driven gear is fixedly connected to the adjusting lead screw, and the driven gear engages There is a driven rack that is slidably connected to the housing, and a third driving motor is fixedly connected to the inside of the housing, and the output end of the third driving motor is fixedly connected to a third driving disc. A driving pin is fixedly connected to the eccentric position, and a driven block is fixedly connected to the driven rack, and a guide groove slidingly connected with the driving pin is provided on the driven block.

Preferably, a connecting rod is fixedly connected to the positioning seat, a moving block is fixedly connected to the upper end of the connecting rod, the moving block is slidably connected to the placement table, and a limit screw is threaded on the moving block.

Preferably, it also includes a storage rack, and the storage rack is fixedly connected with a placement box and a hanging rod.

Preferably, the outer surface and arc surface of the slider, the placement frame are fan-shaped, and slots are provided on the placement frame.

Compared with the prior art, the beneficial effect of the present invention is that the device can drive the rotation of the slider through the rotation of the turntable, and at the same time the slider can cooperate with the guide surface to make reciprocating motion on the turntable, thereby realizing the adjustment of the placement rack. Shake the utensils on the table, avoiding the workload caused by manual shaking, saving time and effort, and the effect of reagent mixing is better; in addition, the position of the turntable can be adjusted so that the slider can reciprocate in the guide groove The change of the movement stroke, the top shaft on the rack can cooperate with the end face cam to make it move and mix in the vertical direction, speed up the speed of reagent mixing, and improve the work efficiency of medical staff; Put it on the placing table for positioning by elastic rope, and follow the shaking of the placing table to mix the reagents; the device has various functions, and can simultaneously mix the reagents in various instruments, which improves the work efficiency.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the description, and are used together with the embodiments of the present invention to explain the present invention, and do not constitute a limitation to the present invention. In the attached picture:

Fig. 1 is a schematic diagram of the overall structure of the oscillator used in conjunction with the shelf in the present invention.

Fig. 2 is a schematic diagram of the overall structure of the oscillator in the present invention.

Fig. 3 is a schematic exploded view of the structure of the placing frame for oscillation in the present invention.

Fig. 4 is a schematic diagram of the structure of the turntable in the present invention, which can be rotated independently or rotated while moving left and right.

FIG. 5 is an enlarged schematic view of part A in FIG. 4 .

Fig. 6 is a structural schematic diagram of cooperation between the turntable and the slider in the present invention.

FIG. 7 is an enlarged schematic diagram of part B in FIG. 6 .

Fig. 8 is a front view of the structure in which the table is placed to vibrate in the present invention.

FIG. 9 is an enlarged schematic view of part C in FIG. 8 .

Fig. 10 is a structural schematic diagram of the detachable connection between the connecting rod and the placing table in the present invention.

FIG. 11 is an enlarged schematic diagram of part D in FIG. 10 .

Fig. 12 is a schematic diagram of another embodiment in which the turntable can move left and right when rotating in the present invention.

Fig. 13 is a schematic diagram of the overall structure of the placing rack in the present invention.

In the figure: 1-shell, 2-fixed block, 3-groove, 4-guiding surface, 5-turntable, 6-guiding groove, 7-slider, 8-first spring, 9-locating seat, 10 -Drive shaft, 11-placement frame, 12-moving rod, 13-second spring, 14-top shaft, 15-end face cam, 16-placement table, 17-guide rod, 18-sliding rod, 19-guide Head, 20-guiding block, 21-curved surface, 22-limiting block, 23-third spring, 24-notch, 25-placement groove, 26-elastic rope, 27-first bevel gear, 28-second Bevel gear, 29-first drive motor, 30-first drive disc, 31-first connecting rod, 32-drive gear, 33-fixed rack, 34-second drive motor, 35-second drive disc, 36 -second connecting rod, 37-adjusting screw, 38-driven gear, 39-driven rack, 40-third drive motor, 41-third drive plate, 42-drive pin, 43-driven block, 44-guiding groove, 45-connecting rod, 46-moving block, 47-limiting screw, 48-shelf, 49-placement box, 50-hanging rod, 51-slot.

Detailed ways

The present invention is described in further detail now in conjunction with accompanying drawing. The accompanying drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the components related to the present invention.

1-13, the present invention includes a housing 1, the upper end of the housing 1 is fixedly connected with a fixed block 2, the fixed block 2 is provided with a groove 3, and the edge of the groove 3 is provided with A continuous concave-convex guide surface 4, the inside of the groove 3 is provided with a turntable 5, and the turntable 5 is provided with a plurality of guide grooves 6 evenly distributed around the circumference, and the central axes of all guide grooves 6 converge on the turntable 5 The center of each guide groove 6 is slidably connected with a slider 7, and a first spring 8 is fixedly connected between the slider 7 and the guide groove 6 so that the outer edge of the slider 7 can be connected to the edge of the groove 3 Always in contact, the inside of the housing 1 is provided with a positioning seat 9 that can reciprocate left and right, the positioning seat 9 is rotatably connected with a drive shaft 10, and the drive shaft 10 is fixedly connected with the turntable 5, and the positioning seat 9 The top is fixedly connected with a drive structure that can drive the drive shaft 10, and each slide block 7 is provided with a placement frame 11, and the slide block 7 is vertically slidably connected with a moving bar 12, and the moving bar 12 is connected to the slide block. 7 is fixedly connected with a second spring 13, the upper end of the moving rod 12 is fixedly connected with the placement frame 11, the top shaft 14 is fixedly connected with the placement frame 11, and the center of the turntable 5 is provided with a positioning seat 9 The end face cam 15 is fixedly connected, and the top shaft 14 is in contact with the end face cam 15 .

When the medical personnel need to vibrate or mix the experimental blood, body fluid or fusion reagent, put the blood collection tube or test tube on the placement rack 11, and then drive the drive shaft 10 to rotate through the drive structure, and the rotation of the drive shaft 10 will drive The turntable 5 fixedly connected with it rotates. When the turntable 5 rotates, it will drive all the sliders 7 to rotate. When the slider 7 rotates, it cooperates with the guide surface 4 to make the slider 7 reciprocate in the guide groove 6. When the guide When the contact surface between the surface 4 and the slider 7 changes from concave to convex, the slider 7 moves to the center of the turntable 5 along the corresponding guide groove 6. At this time, the first spring 8 is continuously compressed and under the action of the first spring 8 The slider 7 is always in contact with the guide surface 4; when the contact surface between the guide surface 4 and the slider 7 changes from a convex surface to a concave surface, at this time, under the action of the first spring 8, the slider 7 moves along its corresponding The guide groove 6 moves away from the center of the turntable 5, so reciprocating, the blood collection tubes on the placement frame 11 can be reciprocated to shake or mix more fully while rotating, and the reciprocating stroke of the slider 7 can be adjusted according to the position of the positioning seat. 9 position adjustment, when the position of the positioning seat 9 is adjusted, the turntable 5 is not at the same center as the groove 3, at this time, the reciprocating stroke range of the slider 7 is no longer always equal, and each time the slider 7. When cooperating with the guide surface 4, the strokes of reciprocating motion are not equal, which improves the effect of blood mixing.

In order to make the placement rack 11 move up and down to further mix the blood or reagents, when the slider 7 rotates and drives the placement rack 11 to rotate, the top shaft 14 on the placement rack 11 will cooperate with the end face cam 15 Make the placement frame 11 reciprocate up and down on the corresponding slider 7, that is, when the contact point between the end face cam 15 and the top shaft 14 moves from a low point to a high point, the placement frame 11 moves upwards, and the second spring 13 is stretched , when the contact point between the end face cam 15 and the top shaft 14 moves from a high point to a low point, under the action of the second spring 13, the placement frame 11 moves downward, and so reciprocating, the vertical movement of the placement frame 11 can be realized. The mixing effect of the reciprocating motion on the blood or the reagent is further improved.

As shown in Figures 2 and 8, in order to place and fix irregular containers and carry out vibration mixing, a placing platform 16 is provided above the housing 1, and four guides are fixedly connected to the bottom of the placing platform 16. Moving rod 17, four sliding rods 18 are slidingly connected to the left and right on the housing 1, and the sliding rods 18 correspond to the guiding rods 17 one by one, and the sliding connection between the guiding rods 17 and the corresponding sliding rods 18 , the guide rod 17 penetrates downward through the slide bar 18 and is fixedly connected with a guide head 19, and a guide block 20 fixedly connected with the housing 1 is provided below the guide head 19, and the guide block 20 The upper end surface is a curved surface 21 , a limiting block 22 is fixedly connected to the guiding rod 17 , and a third spring 23 sleeved on the guiding rod 17 is fixedly connected between the limiting block 22 and the sliding rod 18 .

When it is necessary to oscillate a large bottle container or a container with irregular rules, the container can be placed in the placing table 16 for fixing. Tilting occurs during the moving process. In addition, during the left and right movement of the placement frame 11, the placement table 16 will vibrate up and down through the action of the third spring 23, and the guide rod 17 will slide in the slide bar 18 at this time; The guide blocks 20 can be distributed in a rectangular shape or in a non-rectangular shape to achieve different oscillation effects.

Further, in order to realize the fixing of irregular containers, the front end of the placement platform 16 is provided with a notch 24, and the upper end surface of the placement platform 16 is provided with a placement groove 25, and the placement groove 25 is provided with a plurality of The platform 16 is fixedly connected with elastic cords 26 , and a plurality of elastic cords 26 are arranged in a grid shape.

The setting of notch 24 is convenient for medical staff to take and place the container on the placement rack 11, and by stretching the elastic cord 26, the area larger than the irregular container can be pulled out. After the irregular container is placed in the placement groove 25, Unclamp the pulling of the elastic rope 26, and the irregular container can be positioned by the elasticity of the elastic rope 26.

Wherein, in order to realize that the turntable 5 can be rotated while reciprocating left and right, the driving structure includes a first bevel gear 27 fixedly connected with the drive shaft 10, and the positioning seat 9 is rotatably connected with the first bevel gear 27 meshing. The second bevel gear 28, the second bevel gear 28 is fixedly connected with the first drive motor 29 installed on the positioning seat 9, the drive shaft 10 is fixedly connected with the first drive disc 30, the first drive A first connecting rod 31 is hinged on the eccentric position of the disk 30 , and the end of the first connecting rod 31 away from the first driving disk 30 is hinged to the housing 1 .

When rotating disk 5 is driven, at first start the first drive motor 29, the output end of the first drive motor 29 drives the second bevel gear 28 to rotate, and the second bevel gear 28 drives the first bevel gear 27 that is fixedly connected with it to rotate, The first bevel gear 27 drives the drive shaft 10 fixedly connected with it to rotate, and the drive shaft 10 drives the turntable 5 and the first drive disc 30 fixedly connected therewith to rotate. The first drive disc 30, the first connecting rod 31 and the housing 1 A slider crank structure is formed, and when the first driving disc 30 rotates, the turntable 5 can be reciprocated left and right, so that the turntable 5 can be rotated when it reciprocates left and right.

In addition, in order to realize the rotation of the turntable 5 while reciprocating left and right, the drive mechanism includes a drive gear 32 fixedly connected to the drive shaft 10, the drive gear 32 is engaged with a fixed rack 33, and the fixed rack 33 It can be slid left and right inside the casing 1, and the inside of the casing 1 is fixedly connected with a second drive motor 34, and the output end of the second drive motor 34 is fixedly connected with a second drive disk 35, and the second drive disk A second connecting rod 36 is hinged at the eccentric position of 35 , and the end of the second connecting rod 36 away from the second driving disc 35 is hinged with the positioning seat 9 .

When starting the second driving motor 34, the output end of the second driving motor 34 can drive the second driving disc 35 to rotate, and the second driving disc 35, the second connecting rod 36 and the positioning seat 9 constitute the drive slider mechanism. When the two driving discs 35 rotated, the positioning seat 9 would drive the rotating disk 5 to move left and right, and when the positioning seat 9 reciprocated, the driving gear 32 and the fixed rack 33 would cooperate to drive the driving gear 32 to rotate reciprocatingly, and the driving gear 32 would drive the drive gear fixedly connected with it. The drive shaft 10 rotates, and the drive shaft 10 drives the turntable 5 fixedly connected therewith to rotate.

Specifically, in order to realize the left and right movement or locking of the fixed rack 33 , the fixed rack 33 is threadedly connected with an adjusting screw 37 , the adjusting screw 37 is rotationally connected with the housing 1 , and the adjusting screw 37 is A driven gear 38 capable of reciprocating rotation is fixedly connected, and the driven gear 38 is meshed with a driven rack 39 slidingly connected with the housing 1, and a third drive motor 40 is fixedly connected to the inside of the housing 1. The output end of the third drive motor 40 is fixedly connected with a third drive disc 41, the eccentric position of the third drive disc 41 is fixedly connected with a drive pin 42, and the driven rack 39 is fixedly connected with a driven block 43 , the driven block 43 is provided with a guide groove 44 slidably connected with the driving pin 42 .

Fixed rack 33 and adjusting leading screw 37 have constituted leading screw nut structure, and leading screw nut structure has self-locking property, and when adjusting leading screw 37 does not rotate, fixed rack 33 is in positioning state, when positioning seat 9 moves left and right, The turntable 5 can not only move left and right but also rotate. When the second driving motor 34 was not started, the positioning seat 9 would not move left and right. The left and right reciprocating movement of the rack 33 will drive the drive rack 32 fixedly connected to it to rotate reciprocally, thereby realizing the independent rotation of the turntable 5 .

As shown in Figure 10, in order to realize the detachable connection between the connecting rod 45 and the placement table 16, the positioning seat 9 is fixedly connected with a connecting rod 45, and the upper end of the connecting rod 45 is fixedly connected with a moving block 46, the The moving block 46 is slidably connected with the placement table 16 , and the moving block 16 is threaded with a limit screw 47 .

Connecting rod 45 is telescopic rod, when placing table 16 and connecting rod 45 separations, when rotating disk 5 moves left and right, placing table 16 can not carry out left and right movement and vibrate, when placing table 16 and connecting rod 45 fixed connection, rotating disk 5 left and right When moving, the placing table 16 will move left and right along with the connecting rod 45, and when moving left and right, the placing table 16 will vibrate up and down under the action of the end face cam 15.

In order to facilitate the temporary placement of some utensils, a storage rack 48 is also included, and a placement box 49 and a hanging rod 50 are fixedly connected to the storage rack 48 .

Wherein, the outer surface and arc surface of the slider 7 , the placement frame 11 is fan-shaped, and the placement frame 11 is provided with a slot 51 .

Finally, it should be noted that: the above is only a preferred embodiment of the present invention, and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still The technical solutions recorded in the foregoing embodiments may be modified, or some technical features thereof may be equivalently replaced. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (9)

1. The utility model provides an oscillator for hospital pharmacy experiments, includes casing (1), its characterized in that, the upper end fixedly connected with fixed block (2) of casing (1), be equipped with recess (3) on fixed block (2), the edge of recess (3) is equipped with continuous concave-convex guide surface (4), the inside of recess (3) is equipped with carousel (5), be equipped with a plurality of circumference evenly distributed's guide slot (6) on carousel (5), the axis of all guide slots (6) is assembled in the center of carousel (5), all sliding connection has slider (7) in every guide slot (6), fixedly connected with first spring (8) between slider (7) and guide slot (6) make the outward flange of slider (7) and can contact with the edge of recess (3) all the time, the inside of casing (1) is equipped with reciprocating motion's positioning seat (9) about can, be connected with drive shaft (10) on positioning seat (9) rotation, drive shaft (10) and carousel (5) fixed connection, fixedly connected with slider (7) on each drive shaft (7) is equipped with on the drive rack (12) of sliding connection, the movable rod (12) is fixedly connected with a second spring (13) between the movable rod (12) and the sliding block (7), the upper end of the movable rod (12) is fixedly connected with the placing frame (11), a top shaft (14) is fixedly connected to the placing frame (11), an end face cam (15) fixedly connected with the positioning seat (9) is arranged in the center of the rotary table (5), and the top shaft (14) is in contact fit with the end face cam (15).

2. The oscillator for hospital pharmacy experiments according to claim 1, characterized in that a placing table (16) is arranged above the shell (1), four guide rods (17) are fixedly connected to the lower side of the placing table (16), four slide rods (18) are connected to the shell (1) in a left-right sliding mode, the slide rods (18) are in one-to-one correspondence with the guide rods (17), the guide rods (17) are in sliding connection with the slide rods (18) corresponding to the slide rods, guide heads (19) penetrate through the slide rods (18) downwards, guide blocks (20) fixedly connected with the shell (1) are arranged below the guide heads (19), curved surfaces (21) are arranged on the upper end faces of the guide blocks (20), limiting blocks (22) are fixedly connected to the guide rods (17), and third springs (23) sleeved on the guide rods (17) are fixedly connected between the limiting blocks (22) and the slide rods (18).

3. The oscillator for hospital pharmacy experiments according to claim 2, characterized in that the front end of the placement table (16) is provided with a notch (24), the upper end surface of the placement table (16) is provided with a placement groove (25), a plurality of elastic ropes (26) fixedly connected with the placement table (16) are arranged in the placement groove (25), and the plurality of elastic ropes (26) are arranged in a grid shape.

4. The oscillator for hospital pharmacy experiments according to claim 1, characterized in that the driving structure comprises a first bevel gear (27) fixedly connected with a driving shaft (10), a second bevel gear (28) meshed with the first bevel gear (27) is rotatably connected on the positioning seat (9), a first driving motor (29) installed on the positioning seat (9) is fixedly connected on the second bevel gear (28), a first driving disc (30) is fixedly connected on the driving shaft (10), a first connecting rod (31) is hinged on the eccentric position of the first driving disc (30), and one end, far away from the first driving disc (30), of the first connecting rod (31) is hinged with the shell (1).

5. The oscillator for hospital pharmacy experiments according to claim 1, characterized in that the driving mechanism comprises a driving gear (32) fixedly connected with the driving shaft (10), a fixed rack (33) is meshed with the driving gear (32), the fixed rack (33) can be adjusted in a sliding mode left and right in the shell (1), a second driving motor (34) is fixedly connected to the inside of the shell (1), a second driving disc (35) is fixedly connected to the output end of the second driving motor (34), a second connecting rod (36) is hinged to the eccentric position of the second driving disc (35), and one end, far away from the second driving disc (35), of the second connecting rod (36) is hinged to the positioning seat (9).

6. The oscillator for hospital pharmacy experiments according to claim 5, characterized in that an adjusting screw (37) is connected to the fixed rack (33) in a threaded manner, the adjusting screw (37) is rotationally connected to the housing (1), a driven gear (38) capable of reciprocally rotating is fixedly connected to the adjusting screw (37), a driven rack (39) slidably connected to the housing (1) is meshed with the driven gear (38), a third driving motor (40) is fixedly connected to the inside of the housing (1), a third driving disc (41) is fixedly connected to the output end of the third driving motor (40), a driving pin (42) is fixedly connected to the eccentric position of the third driving disc (41), a driven block (43) is fixedly connected to the driven rack (39), and a guide groove (44) slidably connected to the driving pin (42) is formed in the driven block (43).

7. The oscillator for hospital pharmacy experiments according to claim 4 or 6, characterized in that a connecting rod (45) is fixedly connected to the positioning seat (9), a moving block (46) is fixedly connected to the upper end of the connecting rod (45), the moving block (46) is slidably connected to the placing table (16), and a limit screw (47) is connected to the moving block (46) in a threaded manner.

8. The oscillator for hospital pharmacy experiments according to claim 7, further comprising a shelf (48), wherein a placement box (49) and a hanging rod (50) are fixedly connected to the shelf (48).

9. The oscillator for hospital pharmacy experiments according to claim 8, characterized in that the outer side surface and the circular arc surface of the sliding block (7) are sector-shaped, and the placing frame (11) is provided with a slot (51).

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