Electronic balance protection cover

Abstract

This utility model discloses a protective cover for an electronic balance used for weighing, belonging to the technical field of electronic balance protective covers. It includes a weighing unit, a sliding unit, and a limiting unit. The weighing unit includes a balance body and a base placed on the balance. Four vertical support rods are fixedly installed on the top of the base, and a cover plate is provided between each of the four support rods. The sliding unit includes a sliding groove opened on the side of the support rod facing the cover plate. A guide groove is provided on the inner wall of the sliding groove, and guide rods symmetrically installed on both sides of the cover plate are provided inside the guide groove. The limiting unit includes a fixing block installed on the outer wall of the cover plate. Movable grooves are opened at both ends of the fixing block, and a rotating rod is rotatably installed inside the movable groove. The rotating rod passes through a support plate located within the movable groove. This utility model has the advantage of allowing the top and one side openings of the overall protective cover to be opened, facilitating the storage and retrieval of medicines.

Description

Technical Field

[0001] This utility model relates to the field of electronic balance protective cover technology, specifically an electronic balance protective cover for weighing. Background Technology

[0002] Chemical reagents refer to chemical substances used in chemical experiments. When conducting chemical experiments, each chemical reagent needs to be accurately measured, so an electronic scale is needed to weigh the chemical reagents. Since dust can easily accumulate on the surface of the electronic scale over a long period of time, affecting the accuracy of the electronic scale, a protective cover is needed to cover the weighing platform of the electronic scale.

[0003] A transparent cover is usually placed directly on the electronic balance to cover it, which can protect the balance. When medicines or other substances need to be placed on it, the cover can be used directly without removing it.

[0004] However, most conventional covers can only be opened on one side, resulting in a limited contact surface with the electronic balance and making operation inconvenient.

[0005] Therefore, it is necessary to propose a protective cover with multi-faceted opening function. Utility Model Content

[0006] The purpose of this invention is to provide a protective cover for an electronic balance used for weighing, so as to solve the above-mentioned technical problems to a certain extent, and to facilitate the placement or removal of medicines by fully opening the cover.

[0007] To achieve the above objectives, this utility model provides the following technical solution: including a weighing unit, a sliding unit, and a limiting unit, wherein the weighing unit includes a balance body, a base placed on the balance, and four vertical support rods fixedly installed on the top of the base, with a cover plate provided between each of the four support rods;

[0008] The sliding unit includes a sliding groove opened on the side of the support rod facing the cover plate, a guide groove opened on the inner wall of the sliding groove, and guide rods symmetrically installed on both sides of the cover plate inside the guide groove;

[0009] The limiting unit includes a fixed block installed on the outer wall of the cover plate. The fixed block has movable grooves at both ends. A rotating rod is rotatably installed inside the movable groove and passes through a support plate located in the movable groove.

[0010] Preferably, a buffer unit is provided below the cover plate. The buffer unit includes a positioning groove formed on the base, a buffer spring is fixedly installed inside the positioning groove, and a buffer pad is fixedly installed on the top of the buffer spring.

[0011] Preferably, all the cover plates are transparent, and the top of the four support rods can be fitted with another transparent top cover plate.

[0012] Preferably, the cover plate is located within the slide groove, the guide rod is located within the guide groove, and several guide rods are symmetrically installed on both sides of the cover plate.

[0013] Preferably, when the support plate rotates to unfold within the movable groove, the support plate contacts the two cover plates.

[0014] Preferably, there are two limiting units, which are symmetrically installed on both sides of the cover plate.

[0015] Preferably, the upper surface area of ​​the positioning groove is greater than the upper surface area of ​​the buffer pad, and the upper surface area of ​​the buffer pad is greater than the upper surface area of ​​the cover plate.

[0016] Preferably, the cushioning pad and the bottom of the cover plate are arranged in a cross shape.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] In use, the cover plate at the top of the weighing unit is removed to open the top space. Then, the fixing block is grabbed and pulled upwards. The cover plate can move upwards through the sliding groove. The guide rod prevents the cover plate from shifting at an angle during movement, ensuring it can only move straight up and down. When the limiting unit moves higher than the support rod, the rotating rod rotates the support rod outwards until it contacts the inner wall of the movable groove. At this point, the support plate can no longer rotate. The two support plates are placed on the cover plates at both ends and supported, thus opening the space at the current cover plate. This allows the entire protective cover plate to open its top and one side openings, facilitating the storage and retrieval of medicines. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram showing the overall structure of this embodiment with an opening at the top;

[0021] Figure 2 This is an enlarged schematic diagram of the structure at point A in this embodiment;

[0022] Figure 3 This is a cross-sectional view of the overall structure of this embodiment with an opening at the top;

[0023] Figure 4This is an enlarged schematic diagram of the structure at point C in this embodiment;

[0024] Figure 5 This is a perspective view of the overall structure of this embodiment with an opening at the top;

[0025] Figure 6 This is an enlarged schematic diagram of the structure at point B in this embodiment.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 100. Weighing unit; 110. Balance body; 120. Base; 130. Support rod; 140. Cover plate;

[0028] 200, Sliding unit; 210, Slide groove; 211, Guide groove; 220, Guide rod;

[0029] 300, Limiting unit; 310, Fixing block; 311, Movable groove; 320, Rotating rod; 330, Support plate;

[0030] 400, Buffer unit; 410, Positioning groove; 420, Buffer spring; 430, Buffer pad. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figure 1-6 This utility model provides a technical solution: a protective cover for an electronic balance for weighing, including a weighing unit 100, a sliding unit 200 and a limiting unit 300. The weighing unit 100 includes a balance body 110 and a base 120 placed on the balance. Four vertical support rods 130 are fixedly installed on the top of the base 120. A cover plate 140 is provided between each of the four support rods 130. The cover plates 140 are all transparent. Another transparent top cover plate can be fitted onto the top of the four support rods 130.

[0033] The base 120 can be placed on the balance body 110 for support, serving to support other mechanisms. A rectangular support is formed by four support rods 130. The cover plate 140 is installed between the support rods 130. Excluding the base 120, there are five support blocks connected to the support rods 130. The cover plate 140 at the top of the support rod 130 is a cover plate that can be placed on to cover and removed. The other three cover plates 140 are fixed to the support rods 130. The only cover plate 140 can be raised and lowered between two support rods 130 to open or close.

[0034] See Figure 3 and Figure 4 In a preferred embodiment, a buffer unit 400 is provided below the cover plate 140. The buffer unit 400 includes a positioning groove 410 formed on the base 120. A buffer spring 420 is fixedly installed inside the positioning groove 410. A buffer pad 430 is fixedly installed on the top of the buffer spring 420. The upper surface area of ​​the positioning groove 410 is larger than the upper surface area of ​​the buffer pad 430. The upper surface area of ​​the buffer pad 430 is larger than the upper surface area of ​​the cover plate 140. The buffer pad 430 and the bottom of the cover plate 140 are arranged in a cross shape.

[0035] When the cover plate 140 falls downwards, sometimes the operator's hand may not grip the limit unit 300 tightly, causing the cover plate 140 to fall rapidly. At this time, the bottom of the cover plate 140 contacts the buffer pad 430. The buffer pad 430 prevents the cover plate 140 from directly contacting the base 120 and causing a collision. At this time, the buffer spring 420 can absorb the gravitational potential energy of the buffer pad 430 and cushion the cover plate 140 smoothly. The buffer pad 430 and the bottom of the cover plate 140 are in a cross shape, which can ensure that the bottom of the cover plate 140 will definitely contact the buffer pad 430. When the cover plate 140 lands completely on the base 120, the cover plate 140 will press down the buffer spring 420 and the buffer pad 430. At this time, the buffer pad 430 is in the positioning groove 410, which does not affect the installation of the cover plate 140 and reduces the amount of dust entering the balance body 110.

[0036] See Figure 1 , Figure 2 , Figure 5 and Figure 6 In a further preferred embodiment, the sliding unit 200 includes a sliding groove 210 opened on the side of the support rod 130 facing the cover plate 140. The inner wall of the sliding groove 210 is provided with a guide groove 211. The guide groove 211 is provided with guide rods 220 symmetrically installed on both sides of the cover plate 140. The cover plate 140 is located in the sliding groove 210, and the guide rods 220 are located in the guide groove 211. Several guide rods 220 are symmetrically installed on both sides of the cover plate 140.

[0037] The sliding groove 210 allows the movable cover plate 140 to move up and down on the support rod 130 along the sliding groove 210. The guide groove 211 and the guide rod 220 connected to the cover plate 140 prevent the cover plate 140 from shifting in position or angle during the up and down movement, making it easier to move straight up and down without getting stuck. On the other hand, by attaching pulleys to the guide rod 220, the sliding of the guide rod 220 can be made smoother.

[0038] See Figure 1 , Figure 5 In a further preferred embodiment, there are two limiting units 300, which are symmetrically installed on both sides of the cover plate 140. Each limiting unit 300 includes a fixing block 310 installed on the outer wall of the cover plate 140. The fixing block 310 has movable grooves 311 at both ends. A rotating rod 320 is rotatably installed inside the movable groove 311. The rotating rod 320 passes through a support plate 330 located in the movable groove 311. When the support plate 330 rotates in the movable groove 311 to unfold, the support plate 330 contacts the two cover plates 140.

[0039] When it is necessary to open the cover plate 140, first remove the top cover plate 140, then move the cover plate 140 upwards, and then rotate the support rod 130 outwards with the rotating rod 320 until it contacts the inner wall of the movable groove 311. At this time, the support plate 330 cannot continue to rotate. Place the two support plates 330 on the cover plates 140 at both ends for support, and the space at the current cover plate 140 can be opened. When it is necessary to close the cover plate 140, rotate the support plate 330 to a vertically downward state by rotating the rotating rod 320, that is, the length of the limiting unit 300 is less than the length of the cover plate 140 and will not be blocked, so that the cover plate 140 can move downwards normally.

[0040] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the 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.

[0041] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A protective cover for an electronic balance used for weighing, comprising a weighing unit (100), a sliding unit (200), and a limiting unit (300), characterized in that: The weighing unit (100) includes a balance body (110), a base (120) placed on the balance, and four vertical support rods (130) fixedly installed on the top of the base (120). A cover plate (140) is provided between each of the four support rods (130). The sliding unit (200) includes a sliding groove (210) opened on the side of the support rod (130) facing the cover plate (140), and a guide groove (211) is opened on the inner wall of the sliding groove (210). The guide groove (211) is provided with guide rods (220) symmetrically installed on both sides of the cover plate (140). The limiting unit (300) includes a fixing block (310) installed on the outer wall of the cover plate (140). The fixing block (310) has movable grooves (311) at both ends. A rotating rod (320) is rotatably installed inside the movable groove (311). The rotating rod (320) passes through a support plate (330) located in the movable groove (311).

2. The protective cover for an electronic balance used for weighing according to claim 1, characterized in that: A buffer unit (400) is provided below the cover plate (140). The buffer unit (400) includes a positioning groove (410) opened on the base (120). A buffer spring (420) is fixedly installed inside the positioning groove (410). A buffer pad (430) is fixedly installed on the top of the buffer spring (420).

3. The protective cover for an electronic balance used for weighing according to claim 1, characterized in that: All the cover plates (140) are transparent, and the tops of the four support rods (130) can be fitted with another transparent top cover plate.

4. The protective cover for an electronic balance used for weighing according to claim 1, characterized in that: The cover plate (140) is located in the slide groove (210), and the guide rod (220) is located in the guide groove (211). Several guide rods (220) are symmetrically installed on both sides of the cover plate (140).

5. A protective cover for an electronic balance used for weighing according to claim 1, characterized in that: When the support plate (330) rotates to unfold within the movable groove (311), the support plate (330) contacts the two cover plates (140).

6. The protective cover for an electronic balance used for weighing according to claim 1, characterized in that: There are two limiting units (300), and the two limiting units (300) are symmetrically installed on both sides of the cover plate (140).

7. A protective cover for an electronic balance used for weighing according to claim 2, characterized in that: The upper surface area of ​​the positioning groove (410) is greater than the upper surface area of ​​the buffer pad (430), and the upper surface area of ​​the buffer pad (430) is greater than the upper surface area of ​​the cover plate (140).

8. A protective cover for an electronic balance used for weighing according to claim 7, characterized in that: The buffer pad (430) and the bottom of the cover plate (140) are arranged in a cross shape.

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