CN220743927U

CN220743927U - Telescopic turntable for microwave digestion instrument

Info

Publication number: CN220743927U
Application number: CN202322474103.9U
Authority: CN
Inventors: 江成德; 陈昊伦; 倪晨杰
Original assignee: Preekem Scientific Instruments Co ltd
Current assignee: Preekem Scientific Instruments Co ltd
Priority date: 2023-09-12
Filing date: 2023-09-12
Publication date: 2024-04-09
Anticipated expiration: 2033-09-12

Abstract

A telescopic turntable for a microwave digestion instrument belongs to the field of microwave digestion. A group of guide rails are arranged in a cavity of the microwave digestion instrument, a tray is arranged on the guide rails, and a turntable is arranged on the tray; a driven gear coaxial with the turntable is arranged on the lower end surface of the tray; a second driving gear connected with the driven gear is arranged, and the second driving gear drives the turntable to rotate; a rack and a first driving gear connected with the rack are arranged on the lower end face of the tray; the first driving gear rotates to drive the rack to move, and drives the tray and the turntable to horizontally stretch and retract. By simultaneously arranging two sets of gear transmission mechanisms, one set of gear transmission mechanism normally controls the rotation of the turntable, and the other set of gear transmission mechanism can push out or retract the turntable into the inner cavity of the instrument; the operation of getting to put digestion tank and frame outside digestion instrument box body can be convenient for the operating personnel, operating personnel's intensity of labour can be alleviateed by a wide margin. Can be widely used in the field of design and manufacture of microwave digestion devices.

Description

Telescopic turntable for microwave digestion instrument

Technical Field

The utility model belongs to the field of microwave digestion devices, and particularly relates to a telescopic turntable for a microwave digestion instrument.

Background

Microwave digestion is one type of wet digestion. The method is a method for heating the digestion liquid and the sample in a container (generally a sealed container) by utilizing microwaves so as to achieve the purpose of destroying organic matters or reducing substances in the sample and provide good sample pretreatment for subsequent detection.

With the continuous increase of the detection amount of the sample and the continuous improvement of the requirements of the detection precision, the repeatability, the reliability and the like. The microwave digestion device also derives various digestion principles to accommodate different requirements.

At present, the single batch digestion quantity of the digestion equipment is different from 6 tanks to 48 tanks, and although the digestion quantity of the single batch (taking the number of the digestion tanks contained in each batch as a sign) is greatly improved, the digestion quantity is quite troublesome to replace after each batch is completed, the number of digestion equipment is small, the digestion equipment needs to be manually taken in and out for replacement, and if the digestion quantity is large, the turntable needs to be pulled out by means of a trolley for replacement. The labor intensity of operators is increased continuously, and some sites have no special trolley, so that the problems of time and labor consumption are solved.

The authorized bulletin day is 2020.09.25, the authorized bulletin number is CN 211576749U, which is an utility model patent, and discloses a novel microwave digestion instrument turntable structure, which comprises a turntable body, wherein the turntable body is arranged in a digestion instrument box body, a supporting plate for placing the turntable body is arranged in the digestion instrument box body, and a rotary supporting part is arranged between the supporting plate and the turntable body; the turntable body is provided with a boss, and a plurality of connecting parts for fixing the tank frame are arranged on the circumference of the boss; one side of the turntable body far away from the boss is provided with an annular groove coaxial with the turntable body, a driven fluted disc is coaxially fixed in the annular groove, one side of the driven fluted disc is provided with a driving gear meshed with the driven fluted disc, the driving gear is fixed on the output end of a driving motor, and the driving motor is fixedly arranged at the bottom of the supporting plate. According to the technical scheme, the driving load of the driving motor can be effectively reduced, and the service life of the driving motor is prolonged. However, the technical scheme does not relate to the problem of replacing the digestion tank in the rotary table, and the replacement of the digestion tank in the rotary table still needs to be carried out by an operator stretching hands into the digestion instrument box body, so that the labor intensity of operators can not be reduced.

If a device can be designed, the rotary disc can be pushed out or retracted into the inner cavity of the digestion instrument box body, so that an operator can conveniently take and put the digestion tank and the frame outside the digestion instrument box body, and the labor intensity of the operator can be greatly reduced.

Disclosure of Invention

The utility model aims to provide a telescopic turntable for a microwave digestion instrument. The telescopic turntable for the microwave digestion instrument is provided with two sets of gear transmission mechanisms, one set of gear transmission mechanism can normally control the rotation of the turntable, and the other set of gear transmission mechanism can push out or retract the turntable into the inner cavity of the instrument; after adopting above-mentioned structure, can be convenient for operating personnel to get outside the digestion instrument box and put the operation of digestion tank and frame, alleviate operating personnel's intensity of labour by a wide margin.

The technical scheme of the utility model is as follows: the utility model provides a scalable carousel for microwave digestion instrument, including the tray and be located the carousel on the tray, characterized by:

a group of guide rails are horizontally arranged in an inner cavity of the microwave digestion instrument, a tray is arranged on the guide rails, and a turntable is arranged on the tray;

a driven gear coaxial with the turntable is arranged on the back surface/lower end surface of the tray;

a second driving gear is arranged and connected with the driven gear, and the second driving gear drives the driven gear to rotate so as to drive the turntable to rotate;

a rack and a first driving gear connected with the rack are arranged on the back surface/lower end surface of the tray;

when the first driving gear rotates, the rack is driven to move, and the tray and the turntable are driven to horizontally stretch and retract along the plane where the pair of guide rails are positioned;

the telescopic rotary table of the microwave digestion instrument is simultaneously provided with a second driving gear for driving the rotary table to rotate and a first driving gear for driving the rack to move.

Specifically, the turntable is coaxial with a driven gear arranged on the back of the tray; the driven gear is fixedly connected with the turntable into a whole.

Further, the first driving gear, the second driving gear, the rack and the driven gear are all arranged on the back surface/the lower end surface of the tray.

Specifically, the first driving gear and the second driving gear are respectively and correspondingly connected with the output shafts of the first driving motor and the second driving motor.

Further, the left side and the right side of the tray are provided with sliding edges, the sliding edges are matched with sliding grooves on the side surfaces of the guide rails, and the tray can slide along the plane where the guide rails are located.

Furthermore, a sliding groove is formed in the side face of the guide rail, and the sliding groove is matched with the sliding edge of the tray to enable the tray to slide.

The telescopic turntable is provided with the guide rail, the rack and the first driving gear, so that the turntable has a horizontally moving movement mode, and the turntable and the tray can be telescopic in the horizontal direction.

Further, sliding edges are arranged on the left side and the right side of the tray and matched with the sliding grooves of the guide rail to slide back and forth; the upper top surface of the tray is provided with a second groove, and balls can be paved in the second groove; the second groove on the upper top surface of the tray corresponds to the setting position of the first groove on the lower bottom surface of the turntable.

Specifically, a mounting surface is arranged on the lower bottom surface of the tray, and the mounting surface is of a concave structure; the first driving gear, the second driving gear, the rack and the driven gear are all arranged in the concave structure; the mounting surface is provided with a mounting hole for fixing the rack, and the rack is fixedly connected to the mounting surface and is fixed with the lower bottom surface of the tray into a whole.

Further, a first groove is formed in the lower bottom surface of the turntable, balls are paved in the first groove, and the balls are placed on the tray; and a mounting hole for fixing the driven gear is arranged at the center of the turntable.

Compared with the prior art, the utility model has the advantages that:

1. according to the technical scheme, two sets of gear transmission mechanisms are arranged, one set of gear transmission mechanism can control the turntable to rotate, the other set of gear transmission mechanism can push the turntable out of the cavity of the digestion instrument, an operator can take and put the digestion tank and the frame outside the digestion instrument box body, and the operation is simple and convenient;

2. according to the technical scheme, the automatic sending-out function of the turntable is realized, so that heavy operations of holding the digestion tank and the frame out by an operator can be omitted;

3. according to the technical scheme, the mechanical arm can be matched for replacing the digestion tank and the frame (tank body for short), so that full automation of the sample making and replacing process is realized, the working efficiency is greatly improved, and operators are liberated from the complex and dangerous chemical working environment.

Drawings

FIGS. 1a and 1b are schematic views of the telescopic turntable mechanism of the present utility model;

FIGS. 2a and 2b are schematic views of the structure of the turntable of the present utility model;

fig. 3a to 3c are schematic structural views of the tray of the present utility model;

fig. 4a to 4c are schematic structural views of the guide rail of the present utility model;

FIGS. 5a and 5b are schematic views showing the structure of a first driving gear/a second driving gear according to the present utility model;

FIG. 6 is a schematic view of the structure of the rack of the present utility model;

FIG. 7 is a schematic view of the structure of the driven gear of the present utility model;

FIGS. 8a and 8b are schematic views of the tray and turntable after "retraction" of the instrument cavity;

FIGS. 9a and 9b are schematic views of the tray and turntable in an "extended" state;

FIG. 10 is a schematic illustration of the tray and carousel "sticking" out of the instrument cavity;

FIG. 11 is a schematic view of the tray and turntable "retracting" into the instrument cavity.

In the figure, 1 is a turntable, 2 is a tray, 3 is a guide rail, 4 is a first driving gear, 5 is a second driving gear, 6 is a rack, and 7 is a driven gear; 8 is a first groove, 9 is a ball, 10 is a mounting hole, 11 is a second groove, 12 is a sliding edge, 13 is a mounting hole, 14 is a mounting surface, 15 is a chute, 16 is a guide rail mounting hole, and 17 is an instrument inner cavity.

Detailed Description

The utility model is further described below with reference to the drawings and examples.

As shown in fig. 1a and 1b (fig. 1a is a top view structure of the retractable dial mechanism, and fig. 1b is a bottom view structure of the retractable dial mechanism), a schematic structural diagram of the retractable dial mechanism in the present embodiment is given.

The telescopic turntable mechanism mainly comprises the following parts: turntable 1, tray 2, guide rail 3, first driving gear 4, second driving gear 5, rack 6, driven gear 7.

Specifically, a group of guide rails 3 are horizontally arranged in a cavity of the microwave digestion instrument, a tray 2 is arranged on the guide rails, and a turntable 1 is arranged on the tray; the turntable is coaxial with a driven gear 7 arranged on the back of the tray.

On the back (i.e. lower end face) of the tray, the driven gear 7 is coaxial with the turntable (or the driven gear is fixedly connected with the turntable into a whole); the second driving gear 5 is connected with the driven gear, and the second driving gear drives the driven gear to rotate so as to drive the turntable to rotate.

A rack 6 is arranged on the back (namely the lower end face) of the tray and is connected with the first driving gear 4, and when the first driving gear rotates, the rack is driven to move, and the tray and the turntable are driven to horizontally move along the plane where the pair of guide rails are located.

As shown in fig. 2a and 2b, the turntable 1 is made of PP, etc., so long as corrosion resistance, temperature resistance, strength and microwave penetrability meet the use requirements.

The lower bottom surface of the turntable is provided with a first groove 8, a ball 9 is paved in the first groove, and the ball is placed on the tray 2.

The center of the turntable is provided with a mounting hole 13 for fixing the driven gear.

As shown in fig. 3a to 3c (fig. 3a is a top view structure of the tray, fig. 3b is a cross-sectional structure of the tray of the guide rail, and fig. 3c is a bottom view structure of the tray), the tray 2 is made of PP or the like, so long as corrosion resistance, temperature resistance, strength, and microwave penetrability meet the use requirements.

The top surface is equipped with second recess 11 on the tray, can lay the ball in the second recess.

The second recess of the upper top surface of the tray corresponds to the position of the first recess of the lower bottom surface of the turntable (see fig. 2 b) and corresponds to the turntable 1.

The ball material is usually PTFE, PEEK, or the like.

The tray is provided with sliding edges 12 on the left and right sides, which cooperate with sliding grooves 15 (see fig. 4 c) of the guide rail 3 to enable sliding.

The lower bottom surface of the tray is provided with a mounting surface 14 which is a concave structure;

the first driving gear 4, the second driving gear 5, the rack 6 and the driven gear 7 are all arranged in the concave structure, and the mounting holes 13 on the mounting surface are used for fixing the rack 6.

As shown in fig. 4a to 4c (fig. 4a is a bottom view structure of the guide rail, fig. 4b is a side view structure of the guide rail, and fig. 4c is a transverse cross-sectional structure of the guide rail), the guide rail 3 is made of PP or the like, so long as corrosion resistance, temperature resistance, strength, and microwave penetrability meet the use requirements.

A sliding groove 15 is arranged on the side surface of the guide rail, and is matched with the sliding edge 12 of the tray to slide.

A rail mounting hole 16 is provided in the bottom of the rail to secure it within the instrument cavity.

As shown in fig. 4a to 4c, the guide rail is made of PP or other materials, so long as corrosion resistance, temperature resistance, strength and microwave penetrability meet the use requirements. The side surface of the guide rail is provided with a sliding groove which is matched with the sliding edge of the tray (2) and can slide. The bottom of the guide rail is provided with a mounting hole which can be fixed in the inner cavity of the instrument.

Fig. 5a and 5b show a schematic of the structure of the first driving gear 4/second driving gear 5 according to the present utility model.

Wherein the first driving gear/the second driving gear are driven by a first/a second driving motor (not shown), respectively.

Specifically, the two driving gears are made of PEEK and the like, and the requirements of corrosion resistance, temperature resistance, strength and microwave penetrability are met.

At the bottom of the first driving gear/the second driving gear, a mounting hole 10 is provided for connection with an output shaft of the motor and is disposed on a mounting surface of the tray 2.

The first driving gear is matched with the rack 6, and the second driving gear is matched with the driven gear 7.

In fig. 6, the rack 6 is made of PEEK or the like, so long as corrosion resistance, temperature resistance, strength, and microwave penetrability meet the use requirements.

At the bottom of the rack, there is provided a mounting hole 10 for fixing the rack to the mounting surface of the tray 2.

The rack is matched with the first driving gear 4, the rotation of the first driving gear is changed into the forward and backward movement of the rack, and then the tray fixedly connected with the rack is driven to horizontally move along the plane where the pair of guide rails are positioned.

In the technical scheme, the guide rail, the rack and the first driving gear are arranged, so that the turntable has a horizontally moving movement mode besides the existing rotation function, and the telescopic function of the turntable and the tray in the horizontal direction is realized.

As shown in fig. 7, the driven gear 7 is made of PEEK or the like, so long as corrosion resistance, temperature resistance, strength, and microwave penetration satisfy the use requirements.

The center of the driven gear is provided with a mounting hole which can be connected with the mounting hole of the turntable 1 and is configured on the mounting surface of the tray 2.

The driven gear is matched with the second driving gear 5 to drive the turntable to rotate.

The working principle of the technical scheme is as follows:

as shown in fig. 8a, 8b, 9a, 9b, 10 and 11;

before the experiment starts, referring to fig. 8a, 8b and 10, the whole turntable mechanism is in a retracted state in the instrument cavity 17, firstly, a motor connected with the first driving gear 4 can be started through a programmable push-out command, the first driving gear rotates to drive the rack 6, the tray 2 and the turntable 1 are slowly pushed out to a designated position and then stopped, and the whole turntable mechanism is in a push-out static state, as shown in fig. 9a, 9b and 11.

Then an operator can put the frame on the turntable 1 and put the digestion tanks on one by one; alternatively, the entire frame with the digestion tank mounted thereon may be placed on the turntable 1 by means of a robotic arm.

Referring to fig. 9a, 9b, and 11, the motor connected to the first driving gear 4 is then started by a programmed "retract" command, and the first driving gear rotates to drive the rack 6 to slowly retract the tray 2 together with the turntable 1 to a designated position and then stop, and during the retraction, the second driving gear 5 is slowly engaged with the driven gear 7.

When the experiment is started, a motor connected with the second driving gear 5 is started through a program 'sample starting' command, the second driving gear rotates to drive the driven gear 7, and the turntable is driven by the driven gear to rotate, so that the sample in the digestion tank can be heated uniformly.

When the experiment is finished, the operation at the beginning can be repeated, and after the tray 2 and the turntable 1 are pushed out, digestion tanks on the tray 2 can be replaced one by one; alternatively, the entire assembled frame of the disaggregation tank is replaced by a robotic arm.

The operation mode can save heavy operations of holding in and holding out the frame by an operator, reduces accidents, does not need to use a trolley when replacing the tank body frame with large quantity, can be matched with a mechanical arm if the conditions exist, realizes full automation of the sample making and replacing process, and greatly improves the working efficiency.

According to the technical scheme, on the basis of the conventional rotary driving assembly of the rotary table, a group of driving assemblies capable of driving the tray and the rotary table to move horizontally are additionally arranged, the first driving gear rotates to drive the rack, the tray and the rotary table are pushed out or retracted together, the tray and the rotary table have a horizontally moving motion mode, and therefore the telescopic function of the rotary table and the tray in the horizontal direction is achieved.

According to the technical scheme, through realizing the telescopic function of the turntable, an operator can take and put the digestion tank and the frame outside the digestion instrument box body, so that heavy operations of holding the digestion tank in a holding manner and taking the digestion tank out of the frame by the operator can be omitted; the manipulator can be matched for replacing the digestion tank and the frame, so that full automation of the sample making and replacing process is realized, the working efficiency is greatly improved, and operators are liberated from the complex and dangerous chemical working environment.

The utility model can be widely used in the field of design and manufacture of microwave digestion devices.

Claims

1. A scalable carousel for microwave digestion instrument, including tray and the carousel that is located the tray, characterized by:

2. The retractable turntable for a microwave digestion instrument according to claim 1, wherein the turntable is coaxial with a driven gear provided on the back of the tray; the driven gear is fixedly connected with the turntable into a whole.

3. The retractable dial for a microwave digestion instrument according to claim 1, wherein the first driving gear, the second driving gear, the rack and the driven gear are all disposed on the back/lower end face of the tray.

4. The retractable dial for a microwave digestion instrument according to claim 1, wherein the first driving gear and the second driving gear are respectively connected with output shafts of the first driving motor and the second driving motor.

5. The retractable turntable for a microwave digestion instrument according to claim 1, wherein the left and right sides of the tray are provided with sliding edges which are matched with sliding grooves on the side surfaces of the guide rails, and the tray can slide along the plane of the guide rails.

6. The retractable turntable for a microwave digestion instrument according to claim 1, wherein a chute is formed on the side of the guide rail, and is matched with the sliding edge of the tray to slide.

7. The retractable turntable for a microwave digestion instrument according to claim 1, wherein the retractable turntable is provided with a guide rail, a rack and a first driving gear, so that the turntable has a horizontally moving movement mode, and the retractable turntable and the tray are retractable in the horizontal direction.

8. The retractable turntable for a microwave digestion instrument according to claim 1, wherein sliding edges are arranged on the left side and the right side of the tray and are matched with sliding grooves of the guide rail to slide back and forth;

the upper top surface of the tray is provided with a second groove, and balls can be paved in the second groove;

the second groove on the upper top surface of the tray corresponds to the setting position of the first groove on the lower bottom surface of the turntable.

9. The retractable turntable for a microwave digestion instrument according to claim 1, wherein a mounting surface is arranged on the lower bottom surface of the tray, and the mounting surface is a concave structure;

the first driving gear, the second driving gear, the rack and the driven gear are all arranged in the concave structure;

the mounting surface is provided with a mounting hole for fixing the rack, and the rack is fixedly connected to the mounting surface and is fixed with the lower bottom surface of the tray into a whole.

10. The retractable turntable for a microwave digestion instrument according to claim 1, wherein a first groove is formed in the lower bottom surface of the turntable, balls are paved in the first groove, and the balls are placed on a tray;

and a mounting hole for fixing the driven gear is arranged at the center of the turntable.