Balance for experimental detection

Abstract

The utility model discloses a balance for experimental detection, which comprises an electronic balance shell, four supporting pieces are symmetrically arranged at the bottom of the electronic balance shell at equal intervals, a protective cover is fixedly connected to the top of the electronic balance shell, and ventilation grooves are formed in the opposite interiors of the two sides of the protective cover. A filtering assembly is arranged in each ventilation groove; the filter assembly comprises a mounting frame inserted in the ventilation groove, a dustproof cotton plate and an activated carbon plate, wherein the dustproof cotton plate and the activated carbon plate are mounted in the mounting frame, and the dustproof cotton plate is close to the outer side of the protective cover. Through the above structure, the protective cover can protect the weighing disc so as to reduce interference of dust and other tiny particulate matters in the environment on a detection result, and the ventilation slot can ensure good ventilation in the protective cover so as to prevent a detection environment from being influenced by a humid environment in the sealed protective cover. And dust and moisture can be prevented from entering under the filtering action of the dustproof cotton plate and the activated carbon plate, so that the detection environment can be kept clean.

Description

Technical Field

[0001] The utility model relates to the technical field of experimental detection instruments, in particular to a balance for experimental detection. Background Art

[0002] In experimental testing, a balance is one of the commonly used measuring equipment. It is an instrument used for precise measurement in the laboratory, usually used to weigh the mass of a substance. According to its accuracy and purpose, experimental testing balances can be divided into many types, such as pan balances, analytical balances, precision electronic balances, etc.

[0003] In the prior art, after searching, it was found that a Chinese patent disclosed a balance for experimental detection, and its application number is 201720950152.7. The patent mainly includes an electronic balance shell and an electronic balance body. The bottom of the electronic balance shell is equipped with a base, and the bottom of the base is provided with casters. The electronic balance body is fixedly installed in the electronic balance shell, and a weighing pan is provided on the electronic balance body. A glass cover is fixedly installed on the top of the electronic balance shell, and a dryer is installed on the two corresponding side walls in the glass cover. A temperature and humidity sensor is installed on the left side wall in the glass cover, and the temperature and humidity sensor is located between the two dryers on the left side wall. Although the above utility model also takes into account various influencing factors that may be encountered during laboratory testing, the glass cover contains a temperature and humidity sensor, which detects the temperature at any time and displays it on the temperature and humidity display screen. However, the glass cover set on the top of the above balance is a closed environment after use, and the ventilation environment is poor, which is easy to cause the internal environment of the precision balance to be humid, affecting the weighing effect, especially when weighing powdered solids, the humid environment will make the test data inaccurate. Therefore, those skilled in the art provide a balance for experimental detection to solve the problems raised in the above background technology. Utility Model Content

[0004] The utility model aims to provide a balance for experimental detection, which can protect the weighing pan through the protective cover to reduce the interference of tiny particulate matter such as dust in the environment on the detection result, and at the same time, the ventilation slot can ensure good ventilation inside the protective cover to prevent the internal environment of the sealed protective cover from being humid and affecting the detection environment, and when air circulates to the inside of the protective cover, the entry of dust and moisture can be reduced under the filtering effect of the dustproof cotton board and the activated carbon board, which is conducive to keeping the detection environment clean and clean, and ensuring the accuracy and stability of the balance.

[0005] To achieve the above object, a balance for experimental detection is provided, comprising an electronic balance housing, four supporting members are symmetrically and equidistantly mounted on the bottom of the electronic balance housing, a protective cover is fixedly connected to the top of the electronic balance housing, ventilation slots are provided on opposite sides of the protective cover, and filter components are provided inside the ventilation slots;

[0006] The filter assembly comprises a mounting frame inserted in the ventilation slot and a dustproof cotton plate and an activated carbon plate mounted in the mounting frame, wherein the dustproof cotton plate is close to the outer side of the protective cover.

[0007] According to the described balance for experimental detection, the support member includes a connecting column fixedly connected to the bottom of the electronic balance housing, two clamping plates arranged at the bottom of the connecting column, a buffer pad arranged between the two clamping plates and a screw inserted into the buffer pad, the clamping plate located above the buffer pad is fixedly connected to the bottom of the connecting column, the other clamping plate is fixedly connected to the bottom of the screw, and the top of the screw passes through the upper clamping plate and is threadedly connected to the inside of the connecting column.

[0008] According to the experimental detection balance, glass plates are embedded on the top and both sides of the protective cover, and the glass plates on both sides of the protective cover are located below the ventilation slots.

[0009] According to the experimental detection balance, an operation port is provided inside the glass plate located at the top of the protective cover, and the top of the operation port is covered with an upper cover.

[0010] According to the experimental detection balance, the buffer pad is made of rubber material.

[0011] According to the experimental detection balance, one side of the mounting frame close to the outer side of the protective cover is fixedly connected with a folded edge structure that fits the outer side of the protective cover.

[0012] According to the experimental detection balance, the bottom of the clamping plate below the buffer pad is provided with anti-slip texture.

[0013] The utility model has the following beneficial effects:

[0014] 1. Compared with the prior art, the protective cover arranged at the bottom of the electronic balance housing can protect the weighing pan to reduce the interference of dust and other tiny particles in the environment on the test results. At the same time, the ventilation slot can ensure good ventilation inside the protective cover to prevent the sealed protective cover from being humid and affecting the test environment. When the air circulates inside the protective cover, the dust and moisture can be reduced under the filtering effect of the dustproof cotton board and the activated carbon board, which is conducive to keeping the test environment clean and clean, and ensuring the accuracy and stability of the balance.

[0015] 2. Compared with the prior art, the experimental detection balance has a support member including a buffer pad at the bottom of the electronic balance housing. The good elasticity and shock absorption performance of the buffer pad can effectively reduce the interference of the balance when it is subjected to external impact or vibration, so as to improve the stability and measurement accuracy of the balance, and the use effect is good.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0018] Figure 1 This is a schematic diagram of the first overall structure of a balance for experimental detection according to the utility model;

[0019] Figure 2 This is a second overall structural diagram of a balance for experimental detection according to the utility model;

[0020] Figure 3 This is a third overall structural diagram of a balance for experimental detection of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of a protective cover and a mounting frame of a balance for experimental detection according to the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the installation frame, dustproof cotton board and activated carbon board of a balance for experimental detection of the utility model;

[0023] Figure 6 The utility model is a schematic structural diagram of a support member of a balance for experimental detection.

[0024] Legend:

[0025] 1. Electronic balance housing; 2. Protective cover; 3. Glass plate; 4. Mounting frame; 5. Ventilation slot; 6. Dustproof cotton plate; 7. Activated carbon plate; 8. Operation port; 9. Upper cover; 10. Connecting column; 11. Buffer pad; 12. Clamp; 13. Screw. DETAILED DESCRIPTION

[0026] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0027] Reference Figure 1 , Figure 2 , Figure 4 and Figure 5The utility model embodiment is a balance for experimental detection, which includes an electronic balance housing 1. The bottom of the electronic balance housing 1 is provided with four equidistant and symmetrical support members to ensure stability. A protective cover 2 is fixedly connected to the top of the electronic balance housing 1 to protect the internal components. Ventilation slots 5 are provided at relative positions inside both sides of the protective cover 2 to achieve air circulation. The ventilation slot 5 is equipped with a filter assembly, which includes a mounting frame 4 inserted in the ventilation slot 5, and a dustproof cotton plate 6 and an activated carbon plate 7 installed in the mounting frame 4. The dustproof cotton plate 6 is closer to the outside of the protective cover 2, effectively blocking external dust. Specifically, the protective cover 2 arranged at the bottom of the electronic balance housing 1 can protect the weighing pan to reduce the interference of tiny particulate matter such as dust in the environment on the test results. At the same time, the ventilation slots 5 can ensure good ventilation inside the protective cover 2 to prevent the internal environment of the sealed protective cover 2 from being humid and affecting the test environment. When air circulates to the inside of the protective cover 2, the entry of dust and moisture can be reduced under the filtering action of the dustproof cotton plate 6 and the activated carbon plate 7, which is conducive to keeping the test environment clean and clean, and ensuring the accuracy and stability of the balance.

[0028] Reference Figure 1 , Figure 2 , Figure 3 and Figure 6 The support member includes a connecting column 10 firmly connected to the bottom of the electronic balance housing 1, two clamping plates 12 installed at the bottom of the connecting column 10, a buffer pad 11 located between the two clamping plates 12, and a screw 13 inserted into the buffer pad 11. The clamping plate 12 located above the buffer pad 11 is fixed to the bottom of the connecting column 10, and the other clamping plate 12 is fixedly connected to the bottom of the screw 13. The top of the screw 13 passes through the clamping plate 12 above and forms a threaded connection with the inside of the connecting column 10. Specifically, after the screw 13 is inserted into the inside of the buffer pad 11, the clamping plate 12 at the bottom is rotated so that the screw 13 is connected to the connecting column 10. The buffer pad 11 is installed between the two clamping plates 12, has good elasticity and shock absorption performance, and can effectively reduce the interference of the balance when it is subjected to external shock or vibration, so as to improve the stability and measurement accuracy of the balance.

[0029] Reference Figure 1 , Figure 2 and Figure 3 The top and both sides of the protective cover 2 are embedded with glass plates 3, wherein the glass plates 3 on both sides are placed under the ventilation slots 5. The transparent glass plates 3 allow the user to observe the internal conditions of the protective cover 2 while ensuring good lighting inside the protective cover 2. An operation port 8 is provided inside the top glass plate 3, and a cover 9 is closed above the operation port 8 to ensure its airtightness. The operation port 8 is opened to facilitate the user to operate the experimental instrument on the weighing pan without opening the protective cover 2, thereby ensuring the convenience of operation.

[0030] The buffer pad 11 is made of rubber material and has excellent buffering and shock absorbing effects.

[0031] Reference Figure 5 A side of the mounting frame 4 close to the outer side of the protective cover 2 is fixedly connected with a folding structure that fits tightly with the outer side of the protective cover 2. The folding protruding from the outer side of the protective cover 2 facilitates the operation of the mounting frame 4 for removal.

[0032] Reference Figure 2 The bottom of the splint 12 located below the buffer pad 11 is provided with an anti-slip texture to ensure that it is not easy to slide during use and ensure safety and stability.

[0033] Working principle: The protective cover 2 arranged at the bottom of the electronic balance housing 1 can protect the weighing pan to reduce the interference of dust and other tiny particles in the environment on the test results. At the same time, the ventilation slots 5 can ensure good ventilation inside the protective cover 2 to prevent the sealed protective cover 2 from being humid and affecting the test environment. When air flows into the protective cover 2, the dust and moisture can be reduced under the filtering effect of the dustproof cotton board 6 and the activated carbon board 7, which is conducive to keeping the test environment clean and ensure the accuracy and stability of the balance.

[0034] Meanwhile, a support member including a buffer pad 11 is arranged at the bottom of the electronic balance housing 1. The good elasticity and shock absorption performance of the buffer pad 11 can effectively reduce the interference of the balance when it is subjected to external impact or vibration, so as to improve the stability and measurement accuracy of the balance.

[0035] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A balance for experimental detection, characterized in that: It comprises an electronic balance housing (1), wherein four supporting members are symmetrically and equidistantly mounted on the bottom of the electronic balance housing (1), a protective cover (2) is fixedly connected to the top of the electronic balance housing (1), ventilation slots (5) are provided in opposite interiors of two sides of the protective cover (2), and filter components are provided in the interiors of the ventilation slots (5); The filter assembly comprises a mounting frame (4) inserted inside the ventilation slot (5) and a dustproof cotton plate (6) and an activated carbon plate (7) mounted inside the mounting frame (4), wherein the dustproof cotton plate (6) is close to the outside of the protective cover (2).

2. A balance for experimental detection according to claim 1, characterized in that: The support member comprises a connecting column (10) fixedly connected to the bottom of the electronic balance housing (1), two clamping plates (12) arranged at the bottom of the connecting column (10), a buffer pad (11) arranged between the two clamping plates (12), and a screw rod (13) inserted into the buffer pad (11), wherein the clamping plate (12) located above the buffer pad (11) is fixedly connected to the bottom of the connecting column (10), the other clamping plate (12) is fixedly connected to the bottom of the screw rod (13), and the top of the screw rod (13) passes through the upper clamping plate (12) and is threadedly connected to the inside of the connecting column (10).

3. A balance for experimental detection according to claim 2, characterized in that: Glass plates (3) are embedded on the top and both sides of the protective cover (2), and the glass plates (3) located on both sides of the protective cover (2) are located below the ventilation slots (5).

4. A balance for experimental detection according to claim 3, characterized in that: An operating opening (8) is provided inside the glass plate (3) located at the top of the protective cover (2), and the top of the operating opening (8) is covered with an upper cover (9).

5. A balance for experimental detection according to claim 2, characterized in that: The buffer pad (11) is made of rubber material.

6. A balance for experimental detection according to claim 5, characterized in that: One side of the installation frame (4) close to the outside of the protective cover (2) is fixedly connected to a folded edge structure that fits in place with the outside of the protective cover (2).

7. A balance for experimental detection according to claim 6, characterized in that: The bottom of the clamping plate (12) located below the buffer pad (11) is provided with an anti-slip texture.

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