Weighing spoon and weighing system
By designing a weighing spoon with a controllable lid that connects or separates from the spoon head opening, the problem of spilled chemical reagents is solved, achieving the effects of reducing waste and improving efficiency.
Patent Information
- Application Number
- CN202520438540.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-12
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-12
AI Technical Summary
In chemical experiments, when weighing chemical reagents, the weighing spoon can easily spill during movement, causing waste and increasing experimental costs.
A weighing spoon has been designed, comprising a handle, a head, a drive unit, a cover, and control buttons. The drive unit controls the connection or separation of the cover and the opening of the head to form a receiving cavity to reduce reagent spillage.
It effectively reduces chemical reagent spillage, lowers experimental costs, improves scooping efficiency, and avoids reagent contamination.
Smart Images
Figure CN223888054U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of experimental instrument technology, specifically to a weighing spoon and weighing system. Background Technology
[0002] In chemical experiments, using a balance to weigh chemical reagents to obtain a certain mass is an important step.
[0003] In the process of weighing chemical reagents, a weighing spoon is generally used to scoop the chemical reagent from the reagent container, then the weighing spoon is held and moved to the pan of the balance, and then the chemical reagent in the weighing spoon is poured onto the pan for weighing.
[0004] However, the process of moving the weighing spoon can cause chemical reagents to spill, resulting in waste and increasing experimental costs. Utility Model Content
[0005] This application provides a weighing spoon and a weighing system. When using this weighing spoon to transfer chemical reagents, the amount of chemical reagent spillage can be reduced, thereby reducing the waste of chemical reagents and thus reducing experimental costs.
[0006] To achieve the above objectives, this application adopts the following technical solution:
[0007] In a first aspect, this application provides a weighing spoon, comprising: a handle, a head, a drive component, a cover, and a control button. The head has an opening. Both the head and the drive component are connected to the handle. The edge of the cover is connected to the drive component. The drive component is used to drive the cover to be switchably connected to or separated from the side of the head with the opening. The control button is disposed on the handle; the control button is electrically connected to the drive component and is used to control the opening or closing of the drive component.
[0008] As an optional implementation, the driving component is a motor, and the edge of the cover plate is fixedly connected to the rotating shaft of the motor.
[0009] As an optional implementation, the spoon head and the driving component are both connected to the first end of the spoon handle, and the control button is located at the second end of the spoon handle.
[0010] As an optional implementation, when the cover plate is connected to the side of the spoon head with the opening, the cover plate completely covers the opening.
[0011] As an optional implementation, the cover plate has a flexible layer on the side that connects to the opening.
[0012] As an optional implementation, a baffle plate is provided at the edge of the opening.
[0013] As an optional implementation, the included angle α between the surface of the baffle plate and the axis of the opening is in the range of 15°≤α≤30°.
[0014] As an optional implementation, the spoon handle is provided with a first suction element, which is detachably connected to a second suction element provided on the base of the balance.
[0015] As an optional implementation, the spoon handle is a telescopic structure.
[0016] Secondly, this application provides a weighing system, the weighing system including a balance and a weighing spoon as described in any of the first aspects above, the weighing spoon being used to add reagents to the pan of the balance.
[0017] Compared with the prior art, the beneficial effects of this application are at least as follows:
[0018] Because the measuring spoon has an open end, and the end is connected to the handle, this constitutes the basic structure of a measuring spoon. The end is used to scoop up chemical reagents, and the handle is used to hold and transfer the chemical reagents.
[0019] Because the driving component is connected to the spoon handle, and the edge of the cover plate is connected to the driving component, the driving component is used to switch the cover plate to connect or disconnect from the open side of the spoon head. When the experimenter needs to scoop up chemical reagents, the driving component can drive the cover plate to disconnect from the open side of the spoon head, allowing for normal scooping of the chemical reagents. When the chemical reagents have been scooped up and need to be transferred, the driving component can drive the cover plate to connect to the open side of the spoon head. At this time, the spoon head and cover plate form a receiving cavity, and the scooped chemical reagents are located within this cavity. This reduces the amount of chemical reagents spilled when the experimenter transfers the chemical reagents by holding the spoon handle, thus reducing waste and lowering experimental costs.
[0020] Because the control buttons are electrically connected to the drive mechanism, they are used to control the opening and closing of the drive mechanism. This allows the experimenter to control the drive mechanism via the control buttons, thereby controlling the lid to switchably connect or disconnect from the open side of the spoon head. This eliminates the need for external objects to move the lid, thus improving the efficiency of scooping chemical reagents. Furthermore, it prevents the lid from being contaminated by external objects during movement, thus avoiding contamination of the scooped chemical reagents. Attached Figure Description
[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0022] Figure 1 This is a schematic diagram of the structure of a weighing spoon provided in an embodiment of this application;
[0023] Figure 2 for Figure 1 A schematic diagram of the weighing spoon when the cover plate and the opening of the spoon head are separated;
[0024] Figure 3 for Figure 1 Cross-sectional view of the middle cover plate;
[0025] Figure 4 for Figure 2 Cross-sectional view of DD in the middle;
[0026] Figure 5 for Figure 1 A schematic diagram of the structure of the middle spoon handle;
[0027] Figure 6 This is a schematic diagram of a weighing system provided in an embodiment of this application.
[0028] Explanation of reference numerals in the attached figures:
[0029] 100-Weighing system, 120-Balance, 121-Base, 1211-Second adsorption element, 122-Tray, 110-Weighing spoon, 111-Spoon handle, 1111-First adsorption element, 1112-Telescopic joint, 112-Spoon head, 1121-Opening, 1122-Baffle plate, 113-Driver, 114-Cover plate, 1141-Flexible layer, 115-Control button, 116-Receiving cavity. Detailed Implementation
[0030] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Unless otherwise specified, the following embodiments and features can be combined with each other.
[0031] In chemical experiments, using a balance to weigh chemical reagents to obtain a certain mass is an important step. The process typically involves using a weighing spoon to scoop the reagent from the container, holding the spoon and moving it to the balance pan, then pouring the reagent from the spoon onto the pan for weighing.
[0032] However, when researchers move a weighing spoon filled with chemical reagents, their hands sometimes tremble, and sometimes the angle at which they hold the spoon is not standard. When these situations occur, the chemical reagents may spill onto the laboratory floor or workbench. Furthermore, if the chemical reagents are in powder form, the researcher's breathing can also blow them away. This results in waste of chemical reagents and increases experimental costs.
[0033] To address the aforementioned technical problems, the weighing spoon provided by this utility model solves these problems by incorporating a cover plate. Specifically, the weighing spoon includes a handle, a spoon head, a drive component, a cover plate, and control buttons. Since the spoon head has an opening, it is connected to the handle. This constitutes the basic structure of a weighing spoon, where the spoon head is used to scoop up chemical reagents, and the handle is used to clamp and transfer the chemical reagents.
[0034] Because the driving component is connected to the spoon handle, and the edge of the cover plate is connected to the driving component, the driving component is used to switch the cover plate to connect or disconnect from the open side of the spoon head. When the experimenter needs to scoop up chemical reagents, the driving component can drive the cover plate to disconnect from the open side of the spoon head, allowing for normal scooping of the chemical reagents. When the chemical reagents have been scooped up and need to be transferred, the driving component can drive the cover plate to connect to the open side of the spoon head. At this time, the spoon head and cover plate form a receiving cavity, and the scooped chemical reagents are located within this cavity. This reduces the amount of chemical reagents spilled when the experimenter transfers the chemical reagents by holding the spoon handle, thus reducing waste and lowering experimental costs.
[0035] Because the control buttons are electrically connected to the drive mechanism, they are used to control the opening and closing of the drive mechanism. This allows the experimenter to control the drive mechanism via the control buttons, thereby controlling the lid to switchably connect or disconnect from the open side of the spoon head. This eliminates the need for external objects to move the lid, thus improving the efficiency of scooping chemical reagents. Furthermore, it prevents the lid from being contaminated by external objects during movement, thus avoiding contamination of the scooped chemical reagents.
[0036] The contents of this application will now be described in detail with reference to the accompanying drawings, so that those skilled in the art can have a clearer and more detailed understanding of the contents of this application.
[0037] The following provides a detailed description of the specific structure of the weighing spoon and various possible implementation methods.
[0038] Figure 1 This is a schematic diagram of the structure of a weighing spoon 110 provided in an embodiment of this application. Figure 2 for Figure 1 A schematic diagram of the structure of the weighing spoon 110 when the cover plate 114 is separated from the opening 1121 of the spoon head 112.
[0039] See Figure 1 and Figure 2 The weighing spoon 110 includes a handle 111, a spoon head 112, a drive unit 113, a cover plate 114, and a control button 115. The spoon head 112 has an opening 1121. Both the spoon head 112 and the drive unit 113 are connected to the handle 111. The edge of the cover plate 114 is connected to the drive unit 113. The drive unit 113 is used to drive the cover plate 114 to be switched between connected to or separated from the side of the spoon head 112 with the opening 1121. The control button 115 is located on the handle 111; the control button 115 is electrically connected to the drive unit 113 and is used to control the opening or closing of the drive unit 113.
[0040] In this embodiment, the weighing spoon 110 has an opening 1121 in its spoon head 112, which is connected to the spoon handle 111. This constitutes the basic structure of a weighing spoon 110, where the spoon head 112 is used to scoop up chemical reagents and the spoon handle 111 is used to hold and transfer chemical reagents.
[0041] Since the driving component 113 is connected to the spoon handle 111 and the edge of the cover plate 114 is connected to the driving component 113, the driving component 113 is used to drive the cover plate 114 to switchably connect or separate from the side of the spoon head 112 with the opening 1121. Thus, when the experimenter needs to scoop chemical reagents, the driving component 113 can drive the cover plate 114 to separate from the side of the spoon head 112 with the opening 1121, at which point the chemical reagent can be scooped normally. When the chemical reagent has been scooped and needs to be transferred, the driving component 113 can drive the cover plate 114 to connect with the side of the spoon head 112 with the opening 1121. At this time, the spoon head 112 and the cover plate 114 form a receiving cavity 116, and the scooped chemical reagent is located in the receiving cavity 116. This reduces the amount of chemical reagent spilled when the experimenter holds the spoon handle 111 to transfer the chemical reagent, thereby reducing chemical reagent waste and lowering experimental costs.
[0042] Since the control button 115 is electrically connected to the drive unit 113, it is used to control the opening or closing of the drive unit 113. This allows the experimenter to control the drive unit 113 via the control button 115, thereby controlling the cover plate 114 to be switched on or off from the side of the spoon head 112 with the opening 1121. This eliminates the need for external objects to move the cover plate 114, thus improving the efficiency of scooping chemical reagents. Furthermore, it prevents the cover plate 114 from being contaminated by external objects during movement, thus avoiding contamination of the scooped chemical reagents.
[0043] It should be noted that the aforementioned spoon handle 111 can be curved, straight, or other shapes, and this application embodiment does not limit this.
[0044] It should also be noted that the spoon head 112 can be round or oval, or other shapes, and this application embodiment does not limit this.
[0045] It should also be noted that the cover plate 114 mentioned above can be a flat plate or a curved plate, or a cover plate 114 of other shapes. This application embodiment does not limit this.
[0046] It should also be noted that the materials of the spoon handle 111, spoon head 112 and cover plate 114 can be metal or plastic, or other types of materials. This application embodiment does not limit this.
[0047] It should also be noted that the control button 115 mentioned above can be a physical button or a virtual button set on the touch screen, and this application embodiment does not limit it in this way.
[0048] It should also be noted that the control button 115 can be located on the spoon handle 111 or on an external device; this application embodiment does not limit this.
[0049] As an optional implementation, in some embodiments, see [link to relevant documentation]. Figure 1 and Figure 2 The driving component 113 is a motor, and the edge of the cover plate 114 is fixedly connected to the motor shaft.
[0050] When the motor shaft rotates, it can drive the cover plate 114 to rotate relative to the spoon handle 111, thereby connecting or separating the cover plate 114 from the side of the spoon head 112 with the opening 1121. Since the motor is a common driving component 113, its technology is relatively mature and its failure rate is low, thus the performance of the weighing spoon 110 is more stable, thereby improving experimental efficiency.
[0051] When using the weighing spoon 110 to scoop and transfer chemical reagents, first hold the spoon handle 111 and bring the spoon head 112 close to the container of chemical reagents; then press the control button 115, at which time the motor shaft rotates and drives the cover plate 114 to separate from the side of the spoon head 112 with the opening 1121; then use the spoon head 112 to scoop a certain amount of chemical reagents; then press the control button 115, at which time the motor shaft rotates in the opposite direction and drives the cover plate 114 to connect with the side of the spoon head 112 with the opening 1121; then move the weighing spoon 110 to the position where the chemical reagents need to be poured out; finally press the control button 115, at which time the motor shaft rotates and drives the cover plate 114 to separate from the side of the spoon head 112 with the opening 1121, at which point the chemical reagents can be poured out.
[0052] It should be noted that the above motor is a bidirectional motor, and its shaft can rotate in both the forward and reverse directions.
[0053] As an optional implementation, in some embodiments, see [link to relevant documentation]. Figure 1 and Figure 2 The spoon head 112 and the drive unit 113 are both connected to the first end of the spoon handle 111, and the control button 115 is located at the second end of the spoon handle 111.
[0054] In this embodiment, the control button 115 is connected to the second end of the spoon handle 111. This allows the experimenter to hold the second end of the handle 111 while simultaneously pressing the control button 115 with the same hand when using the weighing spoon 110. This enables one-handed control of the weighing spoon 110, making it more convenient to use and improving experimental efficiency.
[0055] Since both the spoon head 112 and the driving component 113 are connected to the first end of the spoon handle 111, the distance between the spoon head 112 and the hand is maximized when the experimenter holds the second end of the spoon handle 111. This allows the spoon head 112 to be inserted deeper into the chemical reagent container when scooping chemical reagents, making it more convenient and further improving experimental efficiency. Furthermore, it minimizes contamination of the spoon head 112 and the cover plate 114 by hand, ensuring the purity of the scooped chemical reagents.
[0056] As an optional implementation, in some embodiments, see [link to relevant documentation]. Figure 1 and Figure 2 When the cover plate 114 is connected to the side of the spoon head 112 with the opening 1121, the cover plate 114 will completely cover the opening 1121.
[0057] When the cover plate 114 is connected to the side of the spoon head 112 with the opening 1121, the receiving cavity 116 formed by the spoon head 112 and the cover plate 114 is a closed cavity. The scooped chemical reagent is located in this closed cavity. In this way, when the experimenter holds the spoon handle 111 to transfer the chemical reagent, the chemical reagent will not spill, thus avoiding waste of chemical reagent and further reducing the experimental cost.
[0058] As an optional implementation, in some embodiments, see [link to relevant documentation]. Figure 1 , Figure 2 and Figure 3 The cover plate 114 has a flexible layer 1141 on the side for connecting with the opening 1121.
[0059] When the flexible layer 1141 is subjected to pressure, it will undergo elastic deformation. Thus, when the cover plate 114 is connected to the side of the spoon head 112 with the opening 1121, the flexible layer 1141 will be subjected to pressure generated by the weight of the cover plate 114. At this time, the flexible layer 1141 will undergo elastic deformation, thereby making the cover plate 114 and the side of the spoon head 112 with the opening 1121 fit tightly together, thus improving the sealing performance of the receiving cavity 116.
[0060] It should be noted that the flexible layer 1141 mentioned above can be a rubber layer or a silicone layer, or other types of flexible layer 1141. This application embodiment does not limit this.
[0061] As an optional implementation, in some embodiments, see [link to relevant documentation]. Figure 1 , Figure 2 and Figure 4 A baffle plate 1122 is provided at the edge of the opening 1121.
[0062] Specifically, the baffle plate 1122 extends along the edge of the opening 1121, so that when the scooping head 112 is used to scoop up the chemical reagent, the baffle plate 1122 can prevent the chemical reagent from overflowing from the edge of the scooping head 112 with the opening 1121, thereby reducing the waste of chemical reagent and thus reducing the cost of the test.
[0063] It should be noted that the baffle plate 1122 mentioned above can be an annular plate, which can seal the edge of the opening 1121, thereby preventing chemical reagents from spilling to the greatest extent.
[0064] As an optional implementation, in some embodiments, see [link to relevant documentation]. Figure 1 , Figure 2 and Figure 4 The included angle α between the surface of the baffle plate 1122 and the axis of the opening 1121 is in the range of 15°≤α≤30°.
[0065] When the angle α between the surface of the baffle plate 1122 and the axis of the opening 1121 is in the range of 15°≤α≤30°, it can prevent chemical reagents from overflowing from the edge of the spoon head 112 with the opening 1121 to the greatest extent. In addition, when the test personnel transfer chemical reagents, the baffle plate 1122 can guide the chemical reagents to fall onto the tray 122 of the balance 120, thereby preventing the chemical reagents from spilling during the process of entering the tray 122 from the spoon head 112, thus further reducing the waste of chemical reagents.
[0066] It should be noted that the baffle plate 1122 mentioned above can be a guide lip or other structures with the same function. This application embodiment does not limit this.
[0067] As an optional implementation, in some embodiments, see [link to relevant documentation]. Figure 1 , Figure 2 and Figure 6 The spoon handle 111 is provided with a first suction element 1111, and the first suction element 1111 is detachably connected to a second suction element 1211 provided on the base 121 of the balance 120.
[0068] After using the weighing spoon 110 and before performing any weighing operations, the operator can easily attach the handle 111 of the weighing spoon 110 to the base 121 of the balance 120. At this time, the spoon head 112 is suspended in the air, which prevents it from touching other objects and causing contamination, and also facilitates the storage of the weighing spoon 110. When the operator needs to use the weighing spoon 110 again, it can be directly removed from the base 121.
[0069] The balance 120 has a second adsorption element 1211 on its base 121, which is specifically designed to adsorb the spoon handle 111. This prevents the spoon head 112 from contacting the side wall of the base 121, thus preventing the spoon head 112 from being contaminated by the side wall of the base 121.
[0070] It should be noted that the first adsorption element 1111 mentioned above can be a magnetic element or a suction cup, or other first adsorption elements 1111 with the same function. This application embodiment does not limit this. When the first adsorption element 1111 is a magnetic element, the second adsorption element 1211 is also a magnetic element.
[0071] As an optional implementation, in some embodiments, see [link to relevant documentation]. Figure 1 , Figure 2 and Figure 5 The spoon handle 111 is a telescopic structure.
[0072] In this embodiment, the telescopic structure includes multiple telescopic joints 1112 connected in sequence, with adjacent telescopic joints 1112 slidably connected. This allows the tester to adjust the length of the spoon handle 111 according to actual needs, making the weighing spoon 110 more convenient to use. Specifically, when it is necessary to scoop chemical reagents from a deeper part of the container, the spoon handle 111 can be extended; when it is necessary to scoop chemical reagents from a shallower part of the container, the spoon handle 111 can be appropriately shortened. This makes scooping chemical reagents more convenient.
[0073] It should be noted that the number of the aforementioned expansion joints 1112 can be three or four, or other numbers, and this application embodiment does not limit this.
[0074] See Figure 1 , Figure 2 and Figure 6 This application embodiment also provides a weighing system 100, which includes a balance 120 and any of the above-mentioned weighing spoons 110, the weighing spoons 110 being used to add reagents into the tray 122 of the balance 120.
[0075] In this embodiment, the ladle head 112 of the weighing ladle 110 has an opening 1121, and the ladle head 112 is connected to the ladle handle 111. This constitutes the basic structure of a weighing ladle 110, where the ladle head 112 is used to scoop up chemical reagents, and the ladle handle 111 is used to be clamped to transfer the chemical reagents to the tray 122 of the balance 120.
[0076] Since the driving component 113 is connected to the spoon handle 111 and the edge of the cover plate 114 is connected to the driving component 113, the driving component 113 is used to drive the cover plate 114 to switchably connect or separate from the side of the spoon head 112 with the opening 1121. Thus, when the experimenter needs to scoop chemical reagents, the driving component 113 can drive the cover plate 114 to separate from the side of the spoon head 112 with the opening 1121, at which point the chemical reagent can be scooped normally. When the chemical reagent has been scooped and needs to be transferred, the driving component 113 can drive the cover plate 114 to connect with the side of the spoon head 112 with the opening 1121. At this time, the spoon head 112 and the cover plate 114 form a receiving cavity 116, and the scooped chemical reagent is located in the receiving cavity 116. This reduces the amount of chemical reagent spilled when the experimenter holds the spoon handle 111 to transfer the chemical reagent, thereby reducing chemical reagent waste and lowering experimental costs.
[0077] Since the control button 115 is electrically connected to the drive unit 113, it is used to control the opening or closing of the drive unit 113. This allows the experimenter to control the drive unit 113 via the control button 115, thereby controlling the cover plate 114 to be switched on or off from the side of the spoon head 112 with the opening 1121. This eliminates the need for external objects to move the cover plate 114, thus improving the efficiency of scooping chemical reagents. Furthermore, it prevents the cover plate 114 from being contaminated by external objects during movement, thus avoiding contamination of the scooped chemical reagents.
[0078] The balance 120 has a second adsorption element 1211 on its base 121, which is specifically designed to adsorb the spoon handle 111. This prevents the spoon head 112 from contacting the side wall of the base 121, thus preventing the spoon head 112 from being contaminated by the side wall of the base 121.
[0079] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.
[0080] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.
[0081] It should be readily understood that the terms “on,” “above,” and “on top of” in this application should be interpreted in the broadest possible sense, such that “on” means not only “directly on something,” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “above something” or “on top of something,” but also “on something” or “on top of something” without an intermediate feature or layer therebetween, i.e., directly on something.
[0082] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations rotated 90° or be in other orientations, and the spatially relative descriptive terms used herein may be interpreted accordingly.
[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. A weighing spoon, characterized in that, include: Spoon handle (111); A spoon head (112) having an opening (1121); The driving component (113) is connected to the spoon handle (111), and both the spoon head (112) and the driving component (113) are connected to the spoon handle (111). A cover plate (114), the edge of which is connected to the drive member (113); the drive member (113) is used to drive the cover plate (114) to be switched to or separated from the side of the spoon head (112) having the opening (1121); A control button (115) is provided on the spoon handle (111); the control button (115) is electrically connected to the drive unit (113) and is used to control the opening or closing of the drive unit (113).
2. The weighing spoon according to claim 1, characterized in that, The driving component (113) is a motor, and the edge of the cover plate (114) is fixedly connected to the rotating shaft of the motor.
3. The weighing spoon according to claim 1, characterized in that, The spoon head (112) and the driving component (113) are both connected to the first end of the spoon handle (111), and the control button (115) is located at the second end of the spoon handle (111).
4. The weighing spoon according to claim 1, characterized in that, When the cover plate (114) is connected to the side of the spoon head (112) with the opening (1121), the cover plate (114) completely covers the opening (1121).
5. The weighing spoon according to claim 1, characterized in that, The cover plate (114) has a flexible layer (1141) on the side that is connected to the opening (1121).
6. The weighing spoon according to any one of claims 1-5, characterized in that, A baffle plate (1122) is provided at the edge of the opening (1121).
7. The weighing spoon according to claim 6, characterized in that, The included angle α between the surface of the baffle plate (1122) and the axis of the opening (1121) is in the range of 15°≤α≤30°.
8. The weighing spoon according to any one of claims 1-5, characterized in that, The spoon handle (111) is provided with a first adsorption element (1111), and the first adsorption element (1111) is detachably connected to a second adsorption element (1211) provided on the base (121) of the balance (120).
9. The weighing spoon according to any one of claims 1-5, characterized in that, The spoon handle (111) is a telescopic structure.
10. A weighing system, characterized in that, Includes a balance (120) and a weighing spoon as described in any one of claims 1-9, the weighing spoon being used to add reagents to the tray (122) of the balance (120).