Electronic balance windshield

Abstract

The utility model relates to the technical field of auxiliary equipment of measuring instruments, in particular to a windshield of an electronic balance. The electronic balance windproof cover comprises a cover body, the cover body is arranged above an electronic balance and used for covering a weighing area of the electronic balance, a closed cavity is formed above the electronic balance, a container is arranged in the cover body, a containing cavity used for containing a drying medium is formed in the container, and vent holes are formed in the inner wall of the containing cavity. And the container is configured to communicate the closed cavity in the cover body with the placing cavity through the vent holes, so that the drying medium adsorbs water vapor in the gas in the cover body. According to the electronic balance windproof cover, the container is arranged in the cover body, and the vent holes are communicated with the closed cavity in the cover body, so that water vapor in gas in the cover body can be adsorbed, the environment in the cover body is ensured to be dry, the measurement accuracy of the electronic balance is effectively prevented from being influenced by the water vapor, and the weighing measurement reliability of the electronic balance is improved.

Description

Technical Field

[0001] This utility model relates to the field of auxiliary equipment for measuring instruments, specifically to a windproof cover for an electronic balance. Background Technology

[0002] Electronic balances, used for precise weighing, are typically equipped with a windproof shield. This shield isolates the weighing area from the outside air, effectively blocking gas flow and improving weighing accuracy and stability. Furthermore, the windproof shield protects the balance from dust and debris, preventing them from entering and settling on the sensors and tray, thus ensuring the normal operation of the electronic balance.

[0003] Existing windproof covers for electronic balances merely provide physical isolation for the weighing area and do not possess dehumidification or moisture absorption capabilities. When ambient humidity is high, they cannot effectively manage moisture inside the cover. Prolonged exposure to high humidity can cause components of the electronic balance to become damp and rust, and the circuitry can be affected, leading to inaccurate weighing. Especially when the windproof cover is poorly sealed, humid air from the outside environment can enter the cover through gaps between the cover and the electronic balance, causing condensation inside and affecting the weighing accuracy. Summary of the Invention

[0004] The purpose of this invention is to provide a windproof cover structure for the use of electronic balances, so as to facilitate the placement of a drying medium inside the windproof cover, reduce the humidity inside the windproof cover, and avoid the influence of ambient humidity on the weighing accuracy of the electronic balance.

[0005] To achieve the above objectives, this utility model proposes an electronic balance windproof cover, including a cover body, which is arranged above the electronic balance to cover the weighing area of ​​the electronic balance and form a closed cavity above the electronic balance. A container is provided inside the cover body.

[0006] The container is provided with a placement cavity for containing the drying medium. The inner wall of the placement cavity is provided with a vent hole. The container is constructed to connect the closed cavity inside the cover with the placement cavity through the vent hole, so that the drying medium adsorbs water vapor in the gas inside the cover.

[0007] The container has a cavity for placing a drying medium, which is connected to a closed cavity inside the cover through a vent. This allows it to absorb moisture from the gas inside the cover, ensuring a dry environment inside the cover. This effectively prevents moisture from affecting the measurement accuracy of the electronic balance and improves the reliability of the electronic balance's weighing measurement.

[0008] Preferably, the top of the cover is provided with a mounting hole, and the container is configured to enter the closed cavity through the mounting hole at the top of the cover.

[0009] Preferably, the side wall of the enclosure is provided with an opening, and the container is configured to enter the closed cavity through the opening in the side wall of the enclosure.

[0010] Preferably, a boss is provided on the side wall of the container, and the container is configured to use the side wall of the boss to contact the inner wall of the mounting hole to support the container, so that the placement cavity is suspended on the top of the closed cavity.

[0011] Preferably, the container is a drawer box type.

[0012] Preferably, a sealing ring is provided between the boss and the mounting hole.

[0013] Preferably, the container has a placement opening at the top, and a cover is provided at the placement opening.

[0014] Preferably, the vent is located at the bottom of the placement cavity.

[0015] Preferably, the cover is screwed onto the placement opening by threads.

[0016] Preferably, the drying medium is a bagged desiccant.

[0017] Compared with existing technologies, the windproof cover for an electronic balance provided by this utility model has the following substantial features and advancements: By setting a container inside the cover, the difficulty of placing the drying medium inside the cover is greatly reduced. Especially when the drying medium reaches saturation from absorbing moisture, it is easy to disassemble the container and replace it with a new drying medium, maintaining the effectiveness of its drying function. The container connects the placement chamber to the closed cavity inside the cover through a vent, enabling gas circulation within the cover. This allows the drying medium to fully contact the gas in the closed cavity, improving drying efficiency, reducing humidity inside the cover, avoiding the influence of ambient humidity on the weighing accuracy of the electronic balance, and improving the accuracy and reliability of the electronic balance's weighing measurement. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of a top-embedded electronic balance windproof cover according to Embodiment 1 of this utility model.

[0019] Figure 2 yes Figure 1 A schematic diagram of the internal structure of the windproof cover for the electronic balance.

[0020] Figure 3 This is a schematic diagram of the container structure in Embodiment 1 of this utility model.

[0021] Figure 4 This is a schematic diagram of the assembly structure of the top-embedded electronic balance windproof cover in Embodiment 1 of this utility model.

[0022] Figure 5 This is a schematic diagram of the assembly structure of a side-wall pull-out electronic balance windproof cover in Embodiment 2 of this utility model.

[0023] Figure 6 This is a three-dimensional structural diagram of the side-wall pull-out electronic balance windproof cover in Embodiment 2 of this utility model.

[0024] Reference numerals: 1. Cover; 2. Container; 3. Placement cavity; 4. Vent hole; 5. Boss; 6. Placement opening; 7. Cover; 8. Mounting hole; 9. Opening; 10. Edge guard. Detailed Implementation

[0025] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0026] This invention proposes an electronic balance windproof cover, which aims to reduce the difficulty of placing a drying medium inside the windproof cover, effectively reduce the humidity inside the windproof cover, and avoid the influence of ambient humidity on the weighing accuracy of the electronic balance.

[0027] An electronic balance windproof cover proposed in this embodiment includes a cover body, which is arranged above the electronic balance to cover the weighing area of ​​the electronic balance and form a closed cavity above the electronic balance.

[0028] The container is set inside the cover, and the container is set inside the placement cavity for holding the drying medium. The inner wall of the placement cavity is provided with vent holes. The container is constructed to connect the closed cavity inside the cover with the placement cavity through the vent holes, so that the drying medium adsorbs the water vapor in the gas inside the cover.

[0029] The container is equipped with a cavity for placing a drying medium, and it is connected to a closed cavity inside the enclosure through a vent. This allows it to absorb moisture from the gas inside the enclosure, ensuring a dry environment and effectively preventing moisture from affecting the measurement accuracy of the electronic balance, thus improving the reliability of the electronic balance's weighing measurement. Example

[0030] like Figure 1 As shown, an electronic balance windproof cover includes a cover body 1, and a container 2 is disposed inside the cover body 1. For example... Figure 2 As shown, container 2 has a placement cavity 3 for containing the drying medium. Ventilation holes 4 are provided on the inner wall of placement cavity 3. Container 2 is configured to connect the enclosed cavity inside the cover 1 with placement cavity 3 via the vent holes 4, allowing the drying medium to adsorb moisture from the gas inside the cover 1.

[0031] like Figure 4As shown, the top of the cover 1 is provided with a mounting hole 8. The side wall of the container 2 is provided with a boss 5. The container 2 is configured to enter the closed cavity of the cover 1 through the mounting hole 8 at the top of the cover 1. The side wall of the boss 5 contacts the inner wall of the mounting hole 8 to support the container 2, so that the placement cavity 3 is suspended at the top of the closed cavity.

[0032] like Figure 4 As shown, container 2 enters through the top mounting hole 8 and is supported by the contact between the boss 5 and the inner wall of the mounting hole 8, requiring no complicated tools or cumbersome steps. When the drying medium needs to be replaced, container 2 can be easily removed directly from the top, greatly reducing maintenance difficulty, improving operational efficiency, and saving time and labor costs. For example, when the drying medium absorbs water vapor to a saturated state, container 2 can be easily removed from the top of the cover 1 to replace it with a new drying medium, maintaining the effectiveness of its drying function.

[0033] Meanwhile, by placing container 2 on top of cover 1 through mounting hole 8, the placement cavity 3 is suspended above the closed cavity, effectively utilizing the upper space of cover 1, avoiding container 2 from occupying the weighing area, and reserving sufficient operating space for the electronic balance and the measured item, making the internal layout of the windproof cover more reasonable.

[0034] like Figure 2 Combination Figure 3 As shown, container 2 has a placement port 6 on its top. A cover 7 is provided at the placement port 6. Thus, with the placement port 6 and cover 7 on the top of container 2, after the drying medium becomes saturated with moisture, the drying medium can be quickly replaced through the placement port 6 without disassembling the entire container 2. This greatly simplifies the maintenance process, improves operational efficiency, and ensures the continuous effectiveness of the drying function of the windproof cover.

[0035] For example, the cover 7 is screwed onto the placement port 6 via a thread. This threaded engagement is simple and easy to understand; no additional tools are needed, and operators can easily install and remove the cover 7 by manually rotating it. Even with frequent changes of the drying medium, good connection performance is maintained. Furthermore, the threaded engagement ensures a tight connection between the cover 7 and the placement port 6, forming an effective sealing structure. When the container 2 is in operation, it prevents external humid air from entering through the placement port 6, ensuring that the drying medium fully absorbs moisture inside the windproof cover in a relatively enclosed environment, maintaining a stable dry environment inside the cover.

[0036] To further improve the sealing performance inside the cover 1, a sealing ring is provided between the boss 5 and the mounting hole 8. The sealing ring is used to fill the tiny gaps between the boss 5 and the mounting hole 8, forming a tight sealing structure that prevents external ambient gases from entering the interior of the windproof cover, thus further ensuring the drying effect.

[0037] like Figure 3As shown, vent 4 is located at the bottom of the placement chamber 3. This allows gas in the sealed chamber to freely enter from the bottom of the placement chamber 3, which is beneficial for the drying medium to fully absorb water vapor.

[0038] For example, a first through-hole is located at the center of the bottom of the placement chamber 3, and multiple second through-holes are arranged in a circle around the first through-hole. Thus, the multiple second through-holes work in conjunction with the central first through-hole, increasing the total airflow area, reducing airflow resistance, and allowing humid air to enter the placement chamber 3 more quickly and come into contact with the drying medium. At the same time, the reasonable through-hole layout helps to form an orderly airflow channel, reducing air turbulence within the chamber and improving airflow efficiency within the container 2. The number of second through-holes can be selected from 6 to 8, depending on the drying requirements.

[0039] To further improve the convenience of changing the drying medium, a bagged desiccant can be selected. This bagged desiccant seals the desiccant particles inside the bag, effectively preventing them from scattering within container 2. For example, depending on the specific application and drying requirements, either silica gel or montmorillonite desiccant can be selected. Example

[0040] The difference between the electronic balance windproof cover proposed in Embodiment 2 of this utility model and Embodiment 1 is that the container 2 is configured to enter the closed cavity of the cover 1 from the opening 9 on the side wall of the cover 1. Figure 5 and Figure 6 As shown, an opening 9 is provided on the side wall of the cover 1. The container 2 is a drawer-type container, and a retaining edge 10 is provided on the side wall of the container 2.

[0041] like Figure 5 and Figure 6 As shown, the container 2 is configured to enter the closed cavity of the cover 1 from the opening 9 on the side wall of the cover 1, such that the placement cavity 3 is suspended at the top of the closed cavity, and the opening 9 of the cover 1 is sealed by the baffle 10.

[0042] In this embodiment of the invention, an electronic balance windproof cover is provided. By placing a container 2 inside the cover 1, the difficulty of placing the drying medium inside the cover 1 is greatly reduced. Especially when the drying medium absorbs water vapor and reaches saturation, it is easy to disassemble the container 2 and replace it with a new drying medium, maintaining the effectiveness of its drying function. The container 2 connects the placement cavity 3 to the closed cavity inside the cover 1 through the vent 4, realizing the circulation of gas inside the cover 1. This allows the drying medium to fully contact the gas inside the closed cavity, improving drying efficiency, reducing humidity inside the cover 1, avoiding the influence of ambient humidity on the weighing accuracy of the electronic balance, and improving the accuracy and reliability of the electronic balance's weighing measurement.

[0043] This utility model is not limited to the specific technical solutions described in the above embodiments. Besides the above embodiments, this utility model may have other implementation methods. For those skilled in the art, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A windproof cover for an electronic balance, comprising a cover body (1), characterized in that: The cover (1) is arranged above the electronic balance to cover the weighing area of ​​the electronic balance and form a closed cavity above the electronic balance. A container (2) is provided inside the cover (1). The container (2) is provided with a placement cavity (3) for containing the drying medium. The inner wall of the placement cavity (3) is provided with a vent hole (4). The container (2) is configured to use the vent hole (4) to connect the closed cavity inside the cover (1) with the placement cavity (3), so that the drying medium adsorbs the water vapor in the gas inside the cover (1).

2. The windproof cover for the electronic balance according to claim 1, characterized in that, The top of the cover (1) is provided with a mounting hole (8), and the container (2) is configured to enter the closed cavity through the mounting hole (8) at the top of the cover (1).

3. The windproof cover for the electronic balance according to claim 1, characterized in that, The cover (1) has an opening (9) on its side wall, and the container (2) is configured to enter the closed cavity through the opening (9) on the side wall of the cover (1).

4. The windproof cover for the electronic balance according to claim 2, characterized in that, The container (2) is provided with a boss (5) on its side wall. The container (2) is configured to use the side wall of the boss (5) to contact the inner wall of the mounting hole (8) to support the container (2) so that the placement cavity (3) is suspended at the top of the closed cavity.

5. The windproof cover for the electronic balance according to claim 3, characterized in that, The container (2) is a drawer box type.

6. The windproof cover for the electronic balance according to claim 4, characterized in that, A sealing ring is provided between the boss (5) and the mounting hole (8).

7. The windproof cover for the electronic balance according to claim 1, characterized in that, The container (2) has a placement opening (6) on its top, and a cover (7) is provided at the placement opening (6).

8. The windproof cover for the electronic balance according to claim 1, characterized in that, The ventilation hole (4) is located at the bottom of the placement cavity (3).

9. The windproof cover for the electronic balance according to claim 7, characterized in that, The cover (7) is screwed onto the placement opening (6) by threads.

10. The windproof cover for the electronic balance according to claim 1, characterized in that, The drying medium is a bagged desiccant.

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