CN213397293U

CN213397293U - Analytical balance for laboratory

Info

Publication number: CN213397293U
Application number: CN202022316388.XU
Authority: CN
Inventors: 朱虹
Original assignee: Hebei Chemical and Pharmaceutical College
Current assignee: Hebei Chemical and Pharmaceutical College
Priority date: 2020-10-16
Filing date: 2020-10-16
Publication date: 2021-06-08
Anticipated expiration: 2030-10-16

Abstract

The utility model provides an analytical balance is used in laboratory, this balance includes the balance main part. A display controller is arranged at the position, close to the front, of the upper surface of the balance body, and a level meter is arranged on the upper surface of the balance body and above the display controller. And a scale pan and a dust cover are arranged on the upper surface of the balance main body, a movable cover of the dust cover is arranged outside the scale pan, and a through hole for arranging a weighing funnel is arranged in the middle of the dust cover. In addition, a handle is arranged on the top of the dust cover in a sliding mode and can form the sealing of the through hole. The four corners of the balance main body are screwed with support rods penetrating through the balance main body, and the support rods can form a support for the balance main body. The utility model discloses an analytical balance is used in laboratory helps improving the accuracy of the pan of steelyard object of weighing, has avoided the dust to cause the pollution to the pan of steelyard.

Description

Analytical balance for laboratory

Technical Field

The utility model relates to a precision analytical balance technical field, in particular to analytical balance is used in laboratory.

Background

Analytical balance is the most important instrument when carrying out accurate weighing in the experiment, it can be divided into machinery class and electron class, machinery class analytical balance can be subdivided into ordinary analytical balance, air damping balance, semi-automatic photoelectric balance, full-automatic photoelectric balance and single tray balance etc, mechanical balance can satisfy general quantitative analysis's the degree of accuracy requirement, sensitivity is 0.1mg, the precision analytical balance that current laboratory was used is in the use, the staff of being not convenient for adjusts the balance main part into the horizontality, when not in use, can not avoid the dust to cause the pollution to the balance. In addition, when a powder or granular sample or medicine is weighed by an incremental method, if containers such as a 50ml ground conical flask, a 100ml ground test tube or a test tube with a round bottom and a narrow neck, a microwave digestion tank and the like are used, the problems that the sample or the medicine is hung on the wall and cannot be kept upright in a weighing chamber are avoided, the sample or the medicine cannot be directly weighed by an analytical balance, a method of weighing the sample or the medicine by using weighing paper and then transferring the weighed sample or the medicine into the container is often used, the condition of hanging the wall cannot be avoided, experimental steps are added, and the influence of human errors is increased.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing an analytical balance is used in laboratory helps improving the accuracy that the pan of steelyard weighed the object, has avoided the dust to cause the pollution to the pan of steelyard.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

an analytical balance for a laboratory comprises a balance body, wherein a display controller is arranged in front of the upper surface of the balance body, and a level gauge is arranged on the upper surface of the balance body and above the display controller; a scale pan and a dust cover are arranged on the upper surface of the balance main body, the dust cover is movably covered outside the scale pan, a through hole for placing a weighing funnel is formed in the middle of the dust cover, a lifting handle is slidably arranged at the top of the dust cover, and the lifting handle can form the sealing of the through hole; and support rods penetrating through the balance main body are screwed at four corners of the balance main body, and the support rods can form a support for the balance main body.

Furthermore, an operation part for hand operation is arranged at the top of the support rod.

Furthermore, a base is arranged at the bottom of the supporting rod.

Furthermore, the outer surface of the dust cover is made of transparent materials.

Further, an observation window is formed on the outer surface of the dust cover.

Furthermore, a dust suction device is arranged on the inner wall of the dust cover in a detachable mode.

Further, the dust suction apparatus is configured to be a charging type.

Compared with the prior art, the utility model discloses following advantage has:

the utility model discloses an analytical balance is used in laboratory, the utility model is characterized in that a level meter is fixedly arranged at the middle position of the front end outer surface of the balance main body, four chutes are arranged on the lower end outer surface of the balance main body, the cross sections of the four chutes are T-shaped, the four chutes are internally and evenly connected with sliding blocks in a sliding way, the lower end outer surfaces of the four sliding blocks are all fixedly provided with first supporting rods, the lower end outer surfaces of the four first supporting rods are all movably provided with second supporting rods, and the level meter is observed to determine whether the balance main body is in a horizontal state, when the balance main body is not in a horizontal state, a worker rotates the first support rod, the sliding block on the first support rod slides in the sliding groove, the first support rod is in threaded connection with the second support rod, and then adjust the horizontality of balance main part through the overall height of adjusting first bracing piece and second bracing piece, made things convenient for the staff to adjust the balance main part into horizontality.

Drawings

The accompanying drawings, which form a part of the present disclosure, are provided to provide a further understanding of the present disclosure, and the exemplary embodiments and descriptions thereof are provided to explain the present disclosure, wherein the related terms in the front, back, up, down, and the like are only used to represent relative positional relationships, and do not constitute an undue limitation of the present disclosure. In the drawings:

fig. 1 is a schematic structural view of an analytical balance for a laboratory according to an embodiment of the present invention;

fig. 2 is a top view of an analytical balance for a laboratory according to an embodiment of the present invention;

FIG. 3 is a schematic cross-sectional view taken along the direction A in FIG. 2;

fig. 4 is a schematic diagram of the usage state of the laboratory analytical balance in the process of adding the analytical balance according to the embodiment of the present invention;

description of reference numerals:

1-balance body, 101-support rod, 102-operation part, 103-base; 2-display controller, 3-scale, 4-dust cover, 401-observation window, 402-handle, 403-slide rail, 404-perforation; 5-a level meter, 6-a weighing funnel and 7-a dust suction device.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, terms of orientation such as left, right, up, down, and the like are used in the illustrated state for convenience of description, and should not be construed as limiting the structure of the present invention.

This embodiment relates to an analytical balance is used in laboratory can help improving the accuracy that the pan of steelyard weighed the object, has avoided the dust to cause the pollution to the pan of steelyard. The analytical balance for the laboratory comprises a balance main body, wherein a display controller is arranged at a position, close to the front, of the upper surface of the balance main body, and a level gauge is arranged on the upper surface of the balance main body and above the display controller; a scale pan and a dust cover are arranged on the upper surface of the balance main body, the dust cover is movably covered outside the scale pan, a through hole for placing a weighing funnel is formed in the middle of the dust cover, a lifting handle is slidably arranged at the top of the dust cover, and the lifting handle can form the sealing of the through hole; and support rods penetrating through the balance main body are screwed at four corners of the balance main body, and the support rods can form a support for the balance main body.

Based on the above general structural principles, the present invention will be described in detail with reference to the accompanying drawings in conjunction with embodiments. An exemplary configuration of the laboratory analytical balance of the present embodiment is shown in fig. 1, which mainly comprises a balance body 1. A display controller 2 is provided in a position in front of the upper surface of the balance main body 1, and a level 5 is provided on the upper surface of the balance main body 1 and above the display controller 2. In addition, support rods 101 penetrating the balance main body 1 are screwed at four corners of the balance main body 1, the support rods 101 can constitute a support for the balance main body 1, and an operation portion 102 for hand operation is provided at the top of the support rods 101. A base 103 is provided at the bottom of the support bar 101.

Further, a scale pan 3 and a dust cover 4 are provided on the upper surface of the balance main body 1. The dustproof cover 4 is movably covered outside the scale pan 3. Referring to fig. 2, a through hole 404 for placing the weighing funnel 6 is formed in the middle of the dust cover 4, a slide rail 403 is arranged on the top of the dust cover 4, a handle 402 is arranged on the slide rail 403, and the handle 402 can form a seal of the through hole 404. The outer surface of the dust cover 4 is made of a transparent material. The outer surface of the dust cover 4 is configured with a viewing window 401. As shown in fig. 3, a dust suction device 7 is attached to the inner wall of the dust cover 4. The dust suction device 7 is configured to be a charging type.

As shown in FIG. 4, when a sample or drug is to be weighed using an elongated container such as a round-bottom microwave digestion tank, the container is first placed on the scale 3, the weighing funnel 6 is placed in the aperture 404 in the top of the container, the neck of the weighing funnel 6 is inserted into the microwave digestion tank 86 and does not contact the microwave digestion tank 86 (see if the scale reading has changed), and after installation, the sample or drug can be dosed into the microwave digestion tank according to the incremental method. The weighing funnel 6 does not need to be wiped for the same sample or medicine, and after the sample or medicine is replaced, the weighing funnel 6 needs to be taken down before weighing and wiped clean by filter paper. It should be noted that when samples or medicines are weighed for narrow and long containers such as round bottom microwave digestion tanks, a box body with a matched height is selected for weighing.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Analytical balance for laboratories, comprising a balance body (1), characterized in that: a display controller (2) is arranged at a position, close to the front, of the upper surface of the balance main body (1), and a level gauge (5) is arranged on the upper surface of the balance main body (1) and above the display controller (2); a scale pan (3) and a dust cover (4) are arranged on the upper surface of the balance main body (1), the dust cover (4) is movably covered outside the scale pan (3), a through hole (404) for arranging a weighing funnel (6) is formed in the middle of the dust cover (4), a lifting handle (402) is slidably arranged at the top of the dust cover (4), and the lifting handle (402) can form the sealing of the through hole (404); support rods (101) penetrating through the balance main body (1) are connected at four corners of the balance main body (1) in a threaded mode, and the support rods (101) can form a support for the balance main body (1).

2. The laboratory analytical balance of claim 1 wherein: an operation part (102) for hand operation is arranged at the top of the support rod (101).

3. Analytical balance for laboratories according to claim 2, characterized in that: a base (103) is arranged at the bottom of the supporting rod (101).

4. The laboratory analytical balance of claim 1 wherein: the outer surface of the dust cover (4) is made of transparent materials.

5. The laboratory analytical balance of claim 1 wherein: an observation window (401) is formed on the outer surface of the dust cover (4).

6. Analytical balance for laboratories according to any of claims 4 to 5, characterized in that: and a dust suction device (7) is arranged on the inner wall of the dust cover (4) in a detachable way.

7. The laboratory analytical balance of claim 6 wherein: the dust suction device (7) is configured to be of a charging type.