CN219836526U - Automatic liquid feeding device in laboratory - Google Patents

Abstract

The utility model relates to an automatic liquid adding device for a laboratory, which adopts a mode that three parts of structures of a liquid adding unit, a lifting unit and a tray moving unit are matched to work, wherein the liquid adding unit is responsible for automatic liquid adding, the tray moving unit is responsible for transporting a tray, and the lifting unit controls a liquid adding head to lift to assist liquid adding; the continuous automatic liquid feeding of a plurality of triangular flasks can be realized, the problem that the experimenter is heavy and labor is heavy to cause physical fatigue is solved, and the problem that the experimenter is contacted with reagents which are frequently used with strong acid, strong base and volatile are easy to cause physical discomfort is solved.

Description

Automatic liquid feeding device in laboratory

Technical Field

In quantitative chemical analysis experiments on textiles, reagent solutions need to be poured into a Erlenmeyer flask.

Background

In practice, an experimenter manually pours the reagent in the reagent bottle into the Erlenmeyer flask.

The following problems are found during the actual operator process:

1. the experimenter performs experiments on hundreds of samples every day, and hundreds of triangular flasks are filled with liquid manually, so that a great deal of repeated labor exists, and the problem that physical fatigue of the experimenter is easily caused.

2. Strong acid, strong alkali and volatile reagent can be frequently used in the experimental process, and the problem that human body discomfort can be caused by long-term contact exists.

It is therefore necessary to design an automatic liquid feeding device to solve the above-mentioned problems.

Disclosure of Invention

The utility model aims to solve the problems, and the automatic liquid adding device for the laboratory is mainly characterized by comprising a liquid adding unit (1), a lifting unit (2) and a tray moving unit (3); the liquid adding unit (1) consists of a liquid adding head (12), a liquid adding pipe (16), a liquid adding pump (14), an electromagnetic valve (17) and a reagent barrel (15); the lifting unit (2) consists of a top plate (27), a partition plate (24), a linear bearing (26), a linear shaft (21), a liquid adding headstock (22), a solenoid valve frame (25) and a push rod motor (23); the tray moving unit (3) consists of a bottom plate (31), a support column (37), a tray (36), a tray guide rail (34), a tray motor (35), a tray sliding block (33), a support guide rail (38) and a support sliding block (32); one end of the liquid adding pipe (16) is connected with the reagent barrel (15), and the other end is connected with the liquid adding head (12), and sequentially passes through the liquid adding pump (14) and the electromagnetic valve (17); the liquid adding head (12) is fixed on the liquid adding head frame (22), and the electromagnetic valve (17) is fixed on the electromagnetic valve frame (25); the bottom of the push rod motor (23) is connected with the partition board (24), the top of the push rod motor (23) is connected with the top board (27), the liquid adding headstock (22) and the electromagnetic valve frame (25) are fixedly installed below the top board (27), the linear shaft (21) is fixedly installed on the partition board (24), the linear bearing (26) is fixedly installed on the top board (27), and the linear shaft (21) penetrates through the linear bearing (26); a tray guide rail (34) is fixed in the middle of the bottom plate (31), a tray sliding block (33) is mounted on the tray guide rail (34), one end of the tray guide rail (34) is connected with an output shaft of a tray motor (35), the tray sliding block (33) can move along the tray guide rail (34), and the tray sliding block (33) is connected with the bottom of a tray (36); one end of the strut (37) is vertically arranged on the outermost side of the bottom plate; the other end of the pillar (37) is fixedly arranged at the bottom of the partition board (24).

Drawings

Fig. 1 is a schematic perspective view of the structure of the present utility model.

Fig. 2 is a schematic front view of the structure of the present utility model.

Fig. 3 is a schematic structural view of the liquid adding unit of the present utility model.

Fig. 4 is a schematic structural view of the lifting unit of the present utility model.

Fig. 5 is a schematic structural view of the tray moving unit of the present utility model.

Detailed Description

Other advantages and effects of the present utility model will become apparent to those skilled in the art from the following disclosure of the present utility model, which is to be read by the following specific examples. The utility model may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present utility model.

Please refer to fig. 1, 2, 3, 4, and 5.

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

The utility model relates to an automatic liquid adding device for a laboratory, which is characterized by mainly comprising a liquid adding unit (1), a lifting unit (2) and a tray moving unit; the liquid adding unit (1) consists of a liquid adding head (12), a liquid adding pipe (16), a liquid adding pump (14), an electromagnetic valve (17) and a reagent barrel (15); the lifting unit (2) consists of a top plate (27), a partition plate (24), a linear bearing (26), a linear shaft (21), a liquid adding headstock (22), a solenoid valve frame (25) and a push rod motor (23); the tray moving unit (3) consists of a bottom plate (31), a support column (37), a tray (36), a tray guide rail (34), a tray motor (35), a tray sliding block (33), a support guide rail (38) and a support sliding block (32); one end of the liquid adding pipe (16) is connected with the reagent barrel (15), and the other end is connected with the liquid adding head (12), and sequentially passes through the liquid adding pump (14) and the electromagnetic valve (17); the liquid adding head (12) is fixed on the liquid adding head frame (22), and the electromagnetic valve (17) is fixed on the electromagnetic valve frame (25); the liquid adding pump (14) is fixed on the partition board (24), a splash cover plate (13) is arranged on the liquid adding head (12) beside the liquid adding head (12), and a transparent glass sensor (11) is fixedly arranged on the top board and used for detecting whether an Erlenmeyer flask is arranged below the liquid adding head (12); the bottom of the push rod motor (23) is connected with the partition board (24), the top of the push rod motor (23) is connected with the top board (27), the liquid adding headstock (22) and the electromagnetic valve frame (25) are fixedly arranged below the top board (27), the partition board (24) is provided with the linear shaft (21), and the axial direction of the linear shaft (21) is mutually perpendicular to the plane of the partition board (24); the top plate (27) is fixedly provided with a linear bearing (26), and the linear shaft (21) passes through the linear bearing (26); when the push rod motor rises, the liquid adding headstock (22) can be driven to move up and down along the axial direction of the linear shaft (21); the liquid adding head (22) and the splash cover plate (13) on the liquid adding head frame (22) can move up and down, so that the splash cover plate (13) can be lowered to the bottle mouth of the Erlenmeyer flask in each liquid adding process, and the reagent is prevented from splashing out of the bottle mouth in the liquid adding process; one end of the strut (37) is vertically arranged on the outermost side of the bottom plate; the other end of the pillar (37) is fixedly arranged at the bottom of the partition board (24); the height of the baffle plate (24) is larger than that of a tray (36) on which the triangular flask is placed; a tray guide rail (34) is fixed in the middle of the bottom plate (31), support guide rails (38) are fixed on two sides of the bottom plate (31), the support guide rails (38) and the tray guide rail (34) are parallel to each other, a tray sliding block (33) is installed on the tray guide rail (34), one end of the tray guide rail (34) is connected with an output shaft of a tray motor (35), the tray sliding block (33) can move along the tray guide rail (34), a support sliding block (32) is installed on the support guide rail (38), and the support sliding block (32) and the tray sliding block (33) are connected with the bottom of a tray (36); the tray sliding blocks (33) are fixed at the middle position of the bottom of the tray (36), the supporting sliding blocks (32) are fixed on tray motors (35) at two sides to drive the tray sliding blocks (33) to move along the tray guide rails (34), and the two side supporting sliding blocks (32) move along the tray sliding blocks (33) on the supporting guide rails (38), so that the tray (36) can run more stably and rollover is prevented; the tray (36) is capable of passing under the partition (24) along the tray guide (34).

The tray (36) of the embodiment is provided with 25 triangular flask stations which are arranged in a 5x5 square array, the liquid feeding head frame (22) is provided with 5 liquid feeding heads (22), the distance is the same as that of the triangular flasks on the tray (36), and when the tray (36) passes under the partition plate (24), the upper triangular flask also passes right under the liquid feeding heads (22).

The operation process of the automatic liquid adding device in the laboratory is as follows:

the method comprises the steps that an Erlenmeyer flask is placed on a tray (36), a tray motor (35) is started, a tray sliding block (33) is driven to move along a tray guide rail (34) towards a liquid adding head (12), and a supporting sliding block (32) fixed with the tray (36) moves synchronously along with the tray guide rail (38); when the first row of 5 triangular flasks on the tray (36) move to the position below the liquid adding head, the tray motor (35) stops, and the tray (36) stops moving along with the stopping of the tray motor; the push rod motor (23) starts to descend to drive the liquid adding head (12) to descend, when the splash cover plate (13) on the liquid adding head (12) just covers the bottle mouth of the Erlenmeyer flask, the push rod motor (23) stops, when the transparent glass sensor (11) beside the liquid adding motor senses the high glass bottle mouth, the liquid adding pump (14) starts, the electromagnetic valve (17) is opened, the reagent in the reagent bucket (15) flows to the liquid adding head (12) through the liquid adding pipe (16) and then flows into the Erlenmeyer flask from the liquid adding head (12), and liquid adding is started; when the liquid is added to the specified dosage, the electromagnetic valve (17) is closed, and the liquid adding pump (14) stops adding the liquid; the push rod motor (23) is started to drive the liquid adding head (12) to ascend, when the push rod motor (23) is stopped and the tray motor (35) is started, the whole device repeats the steps, and liquid adding of the residual Erlenmeyer flask is completed; after all the Erlenmeyer flasks completed the liquid addition, the tray motor (35) test was completed.

The automatic liquid adding device in the laboratory adopts the tray moving unit to drive the tray to move, the liquid adding unit extracts the reagent, and simultaneously, the lifting unit and the liquid adding unit are matched to realize continuous automatic liquid adding of a plurality of triangular flasks, so that compared with the traditional mode, the automatic liquid adding device solves the following problems:

1. reduces the workload of the experimenters and solves the problem of easy physical fatigue.

2. The contact probability of the experimenter with strong acid, strong alkali and volatile reagent is reduced, and the problem that the long-term frequent use of chemical reagent can generate uncomfortable body is solved.

Finally, it should be noted that: the foregoing examples are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims (1)

1. An automatic liquid adding device for a laboratory is characterized by comprising a liquid adding unit, a lifting unit and a tray moving unit; the liquid adding unit consists of a liquid adding head, a liquid adding pipe, a liquid adding pump, an electromagnetic valve and a reagent barrel; the lifting unit consists of a top plate, a partition plate, a linear bearing, a linear shaft, a liquid feeding headstock, a solenoid valve frame and a push rod motor; the tray moving unit consists of a bottom plate, a support column, a tray guide rail, a tray motor, a tray sliding block, a support guide rail and a support sliding block; one end of the liquid adding pipe is connected with the reagent barrel, the other end of the liquid adding pipe is connected with the liquid adding head, and the middle of the liquid adding pipe sequentially passes through the liquid adding pump and the electromagnetic valve; the liquid adding head is fixed on the liquid adding head frame, and the electromagnetic valve is fixed on the electromagnetic valve frame; the bottom of the push rod motor is connected with the partition plate, the top of the push rod motor is connected with the top plate, the liquid feeding headstock and the electromagnetic valve frame are fixedly arranged below the top plate, the linear shaft is arranged on the partition plate, the top plate is fixedly provided with the linear bearing, and the linear shaft penetrates through the linear bearing; a tray guide rail is fixed in the middle of the bottom plate, a tray slide block is mounted on the tray guide rail, one end of the tray guide rail is connected with an output shaft of a tray motor, the tray slide block can move along the tray guide rail, and the tray slide block is connected with the bottom of the tray; one end of the support column is vertically arranged on the outermost side of the bottom plate; the other end of the pillar is fixedly arranged at the bottom of the partition board.