Precise electronic balance

Abstract

The utility model discloses a precise electronic balance, and aims to solve the problem that in the prior art, a glass plate needs to be repeatedly opened and closed for feeding operation, so that the weighing precision and efficiency are influenced. According to the technical scheme, the precision electronic balance comprises a base, a windproof cover arranged on the base and a weighing mechanism located in the windproof cover, the windproof cover comprises a support and glass plates installed on all faces of the support, a feeding opening is formed in one glass plate, and a shell is arranged on the glass plate and located on the outer side of the feeding opening; an opening is formed in the side, away from the feeding opening, of the shell. According to the precise electronic balance provided by the utility model, the electronic balance drives the annular plate to rotate by shifting the shifting sheet, and the annular plate drives the two baffle sheets to relatively slide through the linkage assembly, so that the charging port is opened and closed, and an operator can charge from the opened charging port; therefore, vibration and inconvenience possibly caused by repeatedly opening and closing the glass plate are avoided, and the weighing precision and efficiency are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of electronic balance technology, and more specifically, to a precision electronic balance. Background Technology

[0002] As a high-precision measuring instrument, an electronic balance determines the mass of an object by measuring the gravity acting on it and outputs the result in digital form. For some balances with higher precision requirements, a windproof cover is also provided. The windproof cover is usually composed of five transparent glass plates, including 2-3 sliding glass plates. This design allows users to easily open the glass plates to operate when adding material, while during the weighing process, the closed glass plates can form a relatively closed environment, effectively reducing errors caused by air flow.

[0003] However, in actual use, it was found that when weighing an item with a fixed weight, it is difficult to accurately weigh the required mass in one go. Users often need to repeatedly add material, which requires repeatedly pushing and pulling the glass plate. In order to avoid the electronic balance vibrating due to excessive pushing and pulling, thus affecting the accuracy of the weighing value, users need to operate gently. This undoubtedly reduces the weighing efficiency. Moreover, there are sometimes jams during the pushing and pulling process, and users often need to hold the electronic balance with one hand to keep it stable, which is inconvenient to operate. Utility Model Content

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide a precision electronic balance. When in use, this electronic balance only requires gently moving a lever on the outer shell of the glass plate to rotate the annular plate. The annular plate, through a linkage component, causes two baffles to slide relative to each other, thereby opening and closing the feeding port. The operator can then add materials through the opened feeding port, thus avoiding the vibration and inconvenience that may be caused by repeatedly opening and closing the glass plate, and ensuring the accuracy and efficiency of weighing.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a precision electronic balance, including a base, a windproof cover disposed on the base, and a weighing mechanism located inside the windproof cover. The windproof cover includes a bracket and glass plates installed on each surface of the bracket. A feeding port is provided on one of the glass plates. A housing is disposed outside the feeding port on the glass plate. An opening is provided on the side of the housing away from the feeding port. An annular plate is rotatably connected in the inner cavity of the housing. The annular plate, the opening, and the feeding port are arranged coaxially. A lever is provided on the edge of the annular plate. The lever extends to the outside of the housing, and a clearance groove for the lever to move is provided on the housing. Two baffles are symmetrically arranged inside the housing. A linkage component is provided between the annular plate and the two baffles, so that when the lever is moved, the two baffles can slide relative to each other to block or open the feeding port.

[0006] The present invention is further configured such that: the linkage component includes two drive slots eccentrically formed on the annular plate, the two drive slots are arranged in a circular array, a drive column is slidably connected in the drive slot, and the drive column is fixedly connected to the baffle.

[0007] The present invention is further configured such that a first magnetic attractor and a second magnetic attractor are respectively embedded on one side of the two baffles that are close to each other, and the first magnetic attractor and the second magnetic attractor attract each other.

[0008] The present invention is further configured such that: two protruding edges are arranged in an annular shape on the inner wall of the housing, and the edge of the annular plate is located between the two protruding edges and slides in contact.

[0009] The present invention is further configured such that: each of the two baffles is provided with a positioning block, each of the two positioning blocks is provided with a positioning hole, a positioning rod is slidably inserted into the positioning hole, and both ends of the positioning rod are fixedly connected to the inner wall of the housing.

[0010] In summary, this utility model has the following beneficial effects:

[0011] When using this electronic balance, simply move the lever on the outer shell of the glass plate to rotate the ring plate. The ring plate, through the linkage component, causes two baffles to slide relative to each other, thereby opening and closing the feeding port. The operator can then add material through the opened feeding port, thus avoiding the vibration and inconvenience that may be caused by repeatedly opening and closing the glass plate, and ensuring the accuracy and efficiency of weighing. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of the electronic balance of this utility model;

[0013] Figure 2 This is a schematic diagram of the structure of the annular plate, baffle, and linkage assembly of this utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the first magnetic suction component and the second magnetic suction component of this utility model;

[0015] Figure 4 This is a schematic diagram of the conductor plate of this utility model.

[0016] In the diagram: 1. Base; 2. Weighing mechanism; 3. Glass plate; 4. Feed port; 5. Housing; 6. Annular plate; 7. Paddle; 8. Relief groove; 9. Baffle; 10. Drive groove; 11. Drive column; 12. First magnetic suction component; 13. Second magnetic suction component; 14. Protruding edge; 15. Positioning block; 16. Positioning rod; 17. Guide plate. Detailed Implementation

[0017] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other.

[0018] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "set up / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] The present invention will now be described in detail with reference to the accompanying drawings.

[0021] Reference Figures 1-3A precision electronic balance includes a base 1, a windproof cover mounted on the base 1, and a weighing mechanism 2 located inside the windproof cover. The windproof cover includes a support and glass plates 3 mounted on various surfaces of the support. These are all mature existing technologies and will not be described in detail here. A feeding port 4 is provided on one of the glass plates 3. A housing 5 is fixedly mounted on the outside of the feeding port 4 on the glass plate 3. An opening is provided on the side of the housing 5 away from the feeding port 4. An annular plate 6 is rotatably connected in the inner cavity of the housing 5. The annular plate 6, the opening, and the feeding port 4 are arranged coaxially. A lever 7 is fixedly mounted on the edge of the annular plate 6. The lever 7 extends to the outside of the housing 5, and a clearance groove 8 is provided on the housing 5 for the lever 7 to move. Two baffles 9 are symmetrically arranged inside the housing 5. A linkage component is provided between the annular plate 6 and the two baffles 9, so that when the lever 7 is moved, the two baffles 9 can slide relative to each other to block or open the feeding port 4.

[0022] The linkage component includes two eccentrically positioned drive slots 10 on the annular plate 6, arranged in a circular array. A drive column 11 is slidably connected within each drive slot 10, and the drive column 11 is fixedly connected to the baffle 9. When the annular plate 6 is rotated, the inner wall of the drive slot 10 pushes the drive column 11 as the annular plate 6 rotates, thereby causing the two baffles 9 to slide away from each other, opening the feed port. When the feed port needs to be closed, the annular plate 6 can be rotated in the opposite direction. Through the cooperation of the eccentric drive slots 10 and drive column 11, the linkage between the rotation of the annular plate 6 and the sliding of the baffles 9 is realized, making the opening and closing of the feed port 4 smooth and reliable.

[0023] Additionally, a first magnetic 12 and a second magnetic 13 are respectively embedded on the side of the two baffles 9 that are close to each other. The first magnetic 12 and the second magnetic 13 attract each other. When the two baffles 9 are close to each other, the weak attraction between the first magnetic 12 and the second magnetic 13 can naturally attract the two baffles 9 to stick together, further ensuring the stability of the two baffles 9 in the closed state.

[0024] Two protruding edges 14 are fixed in a ring on the inner wall of the housing 5. The edge of the annular plate 6 slides between the two protruding edges 14. The two protruding edges 14 enable the annular plate 6 to slide stably between the two protruding edges 14 when driven.

[0025] Both baffles 9 are fixedly provided with positioning blocks 15, and both positioning blocks 15 are provided with positioning holes. Positioning rods 16 slide through the positioning holes. Both ends of the positioning rods 16 are fixedly connected to the inner wall of the housing 5. Through the cooperation of the setting limit blocks and the positioning rods 16, the sliding path and range of the baffles 9 are restricted.

[0026] Working principle: When using this precision electronic balance, if it is necessary to add material again to achieve the target quality, the operator does not need to repeatedly push and pull the entire glass plate 3 as in the traditional way. Instead, the operator only needs to gently move the lever 7 set on the outer shell 5 of the glass plate 3. The lever 7 is connected to the annular plate 6. When the lever 7 is moved, the annular plate 6 rotates accordingly. The annular plate 6 drives the two baffles 9 to slide in a direction away from each other through the linkage component, thereby opening the feeding port 4. At this time, the operator can insert a spatula or other feeding tool through the opened feeding port 4 to add material. After the material is added, by moving the lever 7 in the opposite direction, the annular plate 6 rotates and drives the baffles 9 to close the feeding port 4 again for weighing. This avoids the vibration and inconvenience that may be caused by repeatedly opening and closing the glass plate 3, and ensures the accuracy and efficiency of weighing.

[0027] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A precision electronic balance, comprising a base (1), a windproof cover disposed on the base (1), and a weighing mechanism (2) located within the windproof cover, the windproof cover comprising a support and glass plates (3) mounted on various surfaces of the support, characterized in that: A feeding port (4) is provided on a glass plate (3). A housing (5) is provided on the outside of the feeding port (4) of the glass plate (3). An opening is provided on the side of the housing (5) away from the feeding port (4). An annular plate (6) is rotatably connected in the inner cavity of the housing (5). The annular plate (6), the opening and the feeding port (4) are arranged on the same axis. A lever (7) is provided on the edge of the annular plate (6). The lever (7) extends to the outside of the housing (5). A clearance groove (8) is provided on the housing (5) for the lever (7) to move. Two baffles (9) are symmetrically arranged in the housing (5). A linkage component is provided between the annular plate (6) and the two baffles (9) so that when the lever (7) is moved, the two baffles (9) can slide relative to each other to block or open the feeding port (4).

2. The precision electronic balance according to claim 1, characterized in that: The linkage component includes two drive slots (10) eccentrically opened on the annular plate (6). The two drive slots (10) are arranged in a ring array. A drive column (11) is slidably connected in the drive slot (10), and the drive column (11) is fixedly connected to the baffle (9).

3. The precision electronic balance according to claim 1, wherein: The two baffles (9) are respectively provided with a first magnetic attractor (12) and a second magnetic attractor (13) on their sides that are close to each other, and the first magnetic attractor (12) and the second magnetic attractor (13) attract each other.

4. The precision electronic balance according to claim 1, wherein: The inner wall of the housing (5) is provided with two protruding edges (14) in a ring, and the edge of the annular plate (6) slides between the two protruding edges (14).

5. A precision electronic balance according to claim 1, characterized in that: Both baffles (9) are provided with positioning blocks (15), and both positioning blocks (15) are provided with positioning holes. A positioning rod (16) is slidably inserted in the positioning hole, and both ends of the positioning rod (16) are fixedly connected to the inner wall of the housing (5).

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