CN211706636U

CN211706636U - Disposable magnetic stirrer

Info

Publication number: CN211706636U
Application number: CN202020041472.2U
Authority: CN
Inventors: 李立; 胡宗强; 赵永恒; 刘其雨
Original assignee: Individual
Current assignee: Kunming No1 People's Hospital
Priority date: 2020-01-09
Filing date: 2020-01-09
Publication date: 2020-10-20
Anticipated expiration: 2030-01-09

Abstract

The utility model relates to a agitator technical field discloses a disposable magnetic stirrers. The impeller comprises an impeller and blades, wherein a sliding chute is arranged on the outer side surface of the impeller, a groove is arranged on the lower side surface of the sliding chute, and a rotatable rotating ring which extends into the sliding chute is arranged in the groove; a runner with an arc-shaped section and communicated with the sliding chute is coaxially arranged in the impeller and is vertical to the sliding chute, the regulating mechanism comprises a sliding block, a through groove for the rotating ring to pass through is arranged on the sliding block, a first inclined plane is arranged in the through groove, a connecting rod hinged on the blade is connected to the upper end surface of the sliding block, and a first spring positioned in the runner is sleeved on the connecting rod; a clamping groove is formed in the rotating ring corresponding to the sliding block, and a second inclined surface matched with the first inclined surface is arranged in the clamping groove; the blades are arranged on a mounting seat through a rotating shaft, and the mounting seat is arranged on the upper side surface of the impeller. Through the structure, the inclination angle of the blade mounted on the impeller can be adjusted, and the operation is simple.

Description

Disposable magnetic stirrer

Technical Field

The utility model relates to a stirrer technical field, specifically speaking relates to a disposable magnetic stirrers.

Background

Magnetic stirrers are laboratory instruments for mixing liquids, primarily for stirring or simultaneously heating and stirring low-viscosity liquids or solid-liquid mixtures. The basic principle is that magnetic stirrer inside container is driven by magnetic field to rotate circularly to stir liquid.

Patent application No. CN201721141273.3 discloses a disposable magnetic stirrer, which comprises an impeller, blades, a rotor, a disposable biological bag and a driving unit; wherein a plurality of permanent magnets which are mutually attracted are arranged in the impeller and the rotor; the impeller is sleeved on a welding disc at the bottom of the disposable biological bag; the blades are arranged in the disposable biological bag and are detachably arranged on the impeller; the rotor is arranged outside the disposable biological bag and fixed below the outside of a bottom welding disc of the disposable biological bag; the driving unit is connected with the rotor. Although the device has solved the problem such as current agitator low-speed stirring, mixer clean difficulty, clean long time, still has the inclination of blade installation on the impeller fixed, can't adjust the liquid that adapts to different viscosities to and the unable defect of adjusting of the area size of blade.

SUMMERY OF THE UTILITY MODEL

The defect that the blade inclination that exists can't change and blade area size can't be adjusted among the prior art, the utility model provides a disposable magnetic stirrers. The blade adjusting device can realize the functions of adjusting the inclination angle of the blade arranged on the impeller and adjusting the area of the blade.

In order to solve the above technical problem, the present invention solves the above technical problems.

The disposable magnetic stirrer comprises an impeller and blades, wherein a sliding chute coaxial with the impeller is arranged on the outer side surface of the impeller, a groove coaxial with the sliding chute is arranged on the lower side surface of the sliding chute, and a rotatable rotating ring extending into the sliding chute is arranged in the groove; a runner with an arc-shaped section and communicated with the sliding chute is coaxially arranged in the impeller and is vertical to the sliding chute, the regulating mechanism comprises a sliding block, a through groove for the rotating ring to pass through is arranged on the sliding block, a first inclined plane is arranged in the through groove, a connecting rod which extends out of the impeller and is hinged to the blade is connected to the upper end surface of the sliding block, and a first spring positioned in the runner is sleeved on the connecting rod; a clamping groove is formed in the rotating ring corresponding to the sliding block, and a second inclined surface which is matched with the first inclined surface and used for pushing the sliding block to move upwards is arranged in the clamping groove; the blades are arranged on a mounting seat through a rotating shaft, and the mounting seat is arranged on the upper side surface of the impeller.

Through the structure, the utility model, through the arrangement of the adjusting mechanism, the change of the inclination angle of the blade is more convenient to adjust; through the arrangement of the slide block and the slide channel, the slide block is hinged with the blade through the connecting rod, so that the slide block can move up and down in the slide channel to drive the blade to change the inclination angle; wherein, the setting of swivel becket, draw-in groove, second inclined plane, logical groove, first inclined plane and first spring for first spring provides elasticity and promotes the sliding block all the time and move down in the lane and make the laminating of first inclined plane on the second inclined plane, and when the swivel becket rotated in the recess, the second inclined plane can promote first inclined plane and make the sliding block reciprocate in the lane, thereby realizes reciprocating of sliding block and drives the change in the inclination of blade. The utility model discloses an foretell technical scheme makes the inclination that the blade was installed on the impeller can be adjusted, makes disposable agitator can stir the raw materials of different consistencies, simultaneously, adjusts the easy operation at blade inclination.

Preferably, a plurality of limiting clamping grooves communicated with the grooves are uniformly distributed on the lower side wall of the sliding groove along the circumferential direction of the sliding groove; a cavity is arranged in the rotating ring, a limiting chute communicated with the outer side of the rotating ring is arranged on the side wall of the cavity along the up-down direction, and an upright post is arranged in the cavity along the up-down direction; the cavity is internally provided with a moving block, the moving block is provided with a through hole for the stand column to pass through, the stand column is sleeved with a second spring positioned above the moving block, and the moving block is provided with a clamping column which stretches out of the limiting sliding groove and is clamped into the corresponding limiting clamping groove.

The utility model discloses an above-mentioned structure for stir the card post and shift up along spacing spout and can drive the movable block and shift up, at this moment, the card post breaks away from spacing draw-in groove and makes the rotating ring remove the restriction and can drive the inclination that the sliding block reciprocated adjusting blade in the lane at the recess internal rotation, when loosening the card post, the second spring provides elasticity and promotes the movable block all the time and drives the blade that makes the fixed position of rotating ring made in the card post card income corresponding spacing draw-in groove to the bottom of cavity and fix, is convenient for stir the raw materials.

Preferably, a movable cavity with a downward opening is arranged in the blade, an extension plate capable of extending out of the movable cavity is arranged in the movable cavity, and the contact area of the blade and the raw materials is increased better so that the stirring effect is better.

Preferably, a rotatable screw rod with one end extending out of the blade is arranged in the movable cavity; the extension plate is internally provided with a threaded hole for the screw rod to extend into and be in threaded fit with the screw rod, and the extension plate is preferably adjusted by rotating the screw rod to adjust the area of the extension plate in the movable cavity and adjust the blades in a telescopic manner, and the operation is simple.

Preferably, the side surfaces of the two ends of the movable cavity are relatively provided with limit grooves, and the end surface of the extension plate is provided with limit posts extending into the corresponding limit grooves, so that the extension plate is effectively prevented from being driven by the rotating screw rod to be separated from the movable cavity, and the blades cannot work better.

Preferably, the impeller is provided with an installation groove on the upper side surface for installing and fixing the installation seat, and the installation seat is preferably installed on the impeller.

Drawings

FIG. 1 is a schematic view of a disposable magnetic stirrer according to example 1;

FIG. 2 is a schematic view of an impeller in embodiment 1;

FIG. 3 is a schematic sectional view of an impeller at a street in embodiment 1;

FIG. 4 is a schematic sectional view of the rotary ring at the catch in embodiment 1;

fig. 5 is a schematic sectional view of the blade in embodiment 1.

The names of the parts indicated by the numerical references in the drawings are as follows: 100. an impeller; 110. a blade; 120. a mounting seat; 211. a chute; 212. a groove; 213. a lane; 214. a limiting clamping groove; 221. mounting grooves; 310. a slider; 311. a through groove; 312. a first inclined plane; 321. a connecting rod; 322. a first spring; 330. a rotating ring; 331. a card slot; 332. a second inclined plane; 411. a cavity; 412. a limiting chute; 421. a column; 422. a second spring; 430. a moving block; 431. a through hole; 432. clamping the column; 511. a movable cavity; 512. a limiting groove; 513. a screw rod; 520. an extension plate; 521. a threaded hole; 522. a limiting column; 531. a rotating shaft.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples. It is to be understood that the examples are illustrative of the invention only and are not limiting.

Example 1

As shown in fig. 1 to 5, the present embodiment provides a disposable magnetic stirrer, which includes an impeller 100 and a blade 110, wherein an outer side surface of the impeller 100 is provided with a sliding groove 211 coaxially arranged with the impeller 100, a lower side surface of the sliding groove 211 is provided with a groove 212 coaxially arranged with the sliding groove 211, and a rotating ring 330 which is rotatable and extends into the sliding groove 211 is arranged in the groove 212; a runner 213 which is arc-shaped in cross section and communicated with the chute 211 is coaxially arranged in the impeller 100 and is perpendicular to the chute 211 and is coaxial with the chute 211, an adjusting mechanism is arranged in the runner 213, the adjusting mechanism comprises a sliding block 310, a through groove 311 for the rotating ring 330 to pass through is arranged on the sliding block 310, a first inclined plane 312 is arranged in the through groove 311, a connecting rod 321 which extends out of the impeller 100 and is hinged on the blade 110 is connected on the upper end surface of the sliding block 310, and a first spring 322 which is positioned in the runner 213 is sleeved on the connecting rod 321; a clamping groove 331 is formed in the rotating ring 330 corresponding to the sliding block 310, and a second inclined surface 332 which is matched with the first inclined surface 312 to push the sliding block 310 to move upwards is arranged in the clamping groove 331; the vane 110 is mounted on a mounting seat 120 through a rotation shaft 531, and the mounting seat 120 is mounted on the upper side surface of the impeller 100.

With the structure of the present embodiment, since the blades 110 are installed on the impeller 100, the rotation of the impeller 100 can drive the blades 110 to rotate, so as to stir the raw material; since the blade 110 is disposed on a mounting base 120 through the rotating shaft 531, and the mounting base 120 is fixed on the impeller 100, the blade 110 can rotate on the mounting base 120 around the rotating shaft 531, so that the inclination angle between the blade 110 and the impeller 100 can be changed; through the arrangement of the adjusting mechanism, the change of the inclination angle of the blade 110 is more convenient to adjust; through the arrangement of the moving channel 213 and the sliding block 310, the connecting rod 321 connected to the sliding block 310 is hinged to the vane 100, so that the sliding block 310 can move up and down in the moving channel 213 to change the inclination angle of the vane 110; the rotating ring 330, the locking groove 331, the second inclined surface 332, the through groove 311, the first inclined surface 312 and the first spring 322 are arranged, so that the first spring 322 provides elastic force to always push the sliding block 310 to move downwards in the moving channel 213 to enable the first inclined surface 312 to be attached to the second inclined surface 332, when the rotating ring 330 rotates in the groove 212, the second inclined surface 312 can push the first inclined surface 331 to enable the sliding block to move upwards and downwards in the moving channel 213, and therefore the up-and-down movement of the sliding block 310 can drive the change of the inclination angle of the moving blade. According to the technical scheme, the inclination angle of the blade 110 arranged on the impeller 100 can be adjusted, so that the disposable stirrer can stir raw materials with different viscosities, and meanwhile, the operation of adjusting the inclination angle of the blade 110 is simple.

In this embodiment, a plurality of limiting slots 214 communicated with the grooves 212 are uniformly distributed on the lower side wall of the sliding groove 211 along the circumferential direction of the sliding groove 211; a cavity 411 is arranged in the rotating ring 330, a limiting sliding groove 412 communicated with the outer side of the rotating ring 330 is arranged on the side wall of the cavity 411 along the up-down direction, and an upright column 421 is arranged in the cavity 411 along the up-down direction; a moving block 430 is arranged in the cavity 411, a through hole 431 for the upright column 421 to pass through is arranged on the moving block 430, a second spring 422 located above the moving block 430 is sleeved on the upright column 421, and a clamping column 432 extending out of the limiting sliding groove 412 and clamped into the corresponding limiting clamping groove 214 is arranged on the moving block 430.

Through the structure in this embodiment, the moving block 430 can be driven to move upwards by moving the clamping column 432 upwards along the limiting sliding groove 412, at this time, the clamping column 432 is separated from the limiting clamping groove 412, so that the rotating ring 330 is free from limitation and can rotate in the groove 212 to drive the sliding block 310 to move upwards and downwards in the sliding groove 213 to adjust the inclination angle of the blade 110, when the clamping column 432 is loosened, the second spring 422 provides elastic force to always push the moving block 430 to move towards the bottom of the cavity 411 to drive the clamping column 432 to be clamped into the corresponding limiting clamping groove 412, so that the blade 110 of the rotating ring 330 is fixed in position, and the raw materials are stirred.

In this embodiment, the blade 110 is provided with a movable cavity 511 having a downward opening, and an extension plate 520 extending out of the movable cavity 511 is provided in the movable cavity 511.

Through the arrangement of the extension plate 520 in the embodiment, the extension plate 520 extends out of the movable cavity 511, so that the area of the blade 110 can be increased, and the contact area of the blade 110 and the raw material is increased, so that the stirring effect is better.

In this embodiment, a rotatable screw 513 with one end extending out of the blade 110 is disposed in the movable chamber 511; the extension plate 520 is provided with a threaded hole 521 for the screw rod 513 to extend into and be in threaded fit with the screw rod 513.

Through the structure in the embodiment, the square body of the movable cavity 511 can limit the square extending plate 520, so that the extending plate 520 cannot rotate in the movable cavity 511; due to the threaded fit of the screw 513 and the threaded hole 521, the screw 513 which is rotatably extended out of the vane 110 can drive the extension plate 520 to move in the movable chamber 511 to adjust the area of the vane 110, and the operation is simple.

In this embodiment, the side surfaces of the two ends of the movable cavity 511 are relatively provided with a limiting groove 512, and the end surface of the extending plate 520 is provided with a limiting post 522 extending into the corresponding limiting groove 512.

Through the arrangement of the limiting groove 512 and the limiting column 522 in this embodiment, the limiting groove 512 limits the limiting column 522, thereby effectively preventing the rotating screw 513 from driving the extending plate 520 to be separated from the movable cavity 511, so that the blade 110 cannot work better.

In this embodiment, the impeller 100 is provided with a mounting groove 221 for mounting and fixing the mounting seat 120 on the upper side surface thereof, and preferably, the mounting seat 120 is mounted on the impeller 100.

When the disposable magnetic stirrer of the embodiment is used specifically, according to the viscosity of the raw material to be stirred, the clamping column 532 is firstly shifted upwards to be separated from the limiting clamping groove 214, then the rotating ring 330 is rotated in the groove 212 to drive the sliding block 310 to move up and down in the runner 213 to change the inclination angle of the blade 110 to a proper range, and the clamping column 432 is loosened, at the moment, the second spring 422 pushes the moving block 430 to move downwards to clamp the clamping column 432 into the limiting clamping groove 214 to limit and fix the rotating ring 330, so that the raw material can be stirred conveniently; when the contact area of the blade 110 and the raw material needs to be increased, the extension plate 520 can be adjusted to extend out of the blade 110 by rotating the screw 513 to increase the area of the blade 110.

In short, the above description is only a preferred embodiment of the present invention, and all the equivalent changes and modifications made in accordance with the claims of the present invention should be covered by the scope of the present invention.

Claims

1. Disposable magnetic stirrer, comprising an impeller (100) and blades (110), characterized in that: a sliding groove (211) which is coaxial with the impeller (100) is arranged on the outer side surface of the impeller (100), a groove (212) which is coaxial with the sliding groove (211) is arranged on the lower side surface of the sliding groove (211), and a rotating ring (330) which can rotate and extends into the sliding groove (211) is arranged in the groove (212); a runner (213) which is arc-shaped in cross section and communicated with the sliding chute (211) is coaxially arranged in the impeller (100) and is vertical to the sliding chute (211), an adjusting mechanism is arranged in the runner (213), the adjusting mechanism comprises a sliding block (310), a through groove (311) for a rotating ring (330) to pass through is arranged on the sliding block (310), a first inclined plane (312) is arranged in the through groove (311), a connecting rod (321) which extends out of the impeller (100) and is hinged to the blade (110) is connected to the upper end surface of the sliding block (310), and a first spring (322) which is positioned in the runner (213) is sleeved on the connecting rod (321); a clamping groove (331) is formed in the rotating ring (330) corresponding to the sliding block (310), and a second inclined surface (332) which is matched with the first inclined surface (312) to push the sliding block (310) to move upwards is arranged in the clamping groove (331); the blade (110) is arranged on a mounting seat (120) through a rotating shaft (531), and the mounting seat (120) is arranged on the upper side surface of the impeller (100).

2. The disposable magnetic stirrer of claim 1, wherein: a plurality of limiting clamping grooves (214) communicated with the grooves (212) are uniformly distributed on the lower side wall of the sliding groove (211) along the circumferential direction of the sliding groove (211); a cavity (411) is arranged in the rotating ring (330), a limiting sliding groove (412) communicated with the outer side of the rotating ring (330) is arranged on the side wall of the cavity (411) along the up-down direction, and an upright column (421) is arranged in the cavity (411) along the up-down direction; a moving block (430) is arranged in the cavity (411), a through hole (431) for the stand column (421) to pass through is formed in the moving block (430), a second spring (422) located above the moving block (430) is sleeved on the stand column (421), and a clamping column (432) extending out of the limiting sliding groove (412) and clamped into the corresponding limiting clamping groove (214) is formed in the moving block (430).

3. The disposable magnetic stirrer of claim 1, wherein: a movable cavity (511) with a downward opening is arranged in the blade (110), and an extension plate (520) capable of extending out of the movable cavity (511) is arranged in the movable cavity (511).

4. The disposable magnetic stirrer of claim 3, wherein: a rotatable screw rod (513) with one end extending out of the blade (110) is arranged in the movable cavity (511); the extension plate (520) is internally provided with a threaded hole (521) for the screw rod (513) to extend into and to be in threaded fit with the screw rod (513).

5. The disposable magnetic stirrer of claim 4, wherein: the side surfaces of the two ends of the movable cavity (511) are relatively provided with a limiting groove (512), and the end surface of the extension plate (520) is provided with a limiting column (522) extending into the corresponding limiting groove (512).

6. The disposable magnetic stirrer of claim 1, wherein: the upper side surface of the impeller (100) is provided with a mounting groove (221) for mounting and fixing the mounting seat (120).