Mini weighing device
By designing the support plate and rotary connection structure of the mini weighing device, the problem of inaccurate weighing of coffee handles in the prior art is solved, and the weighing effect with high accuracy and convenient use is achieved.
Patent Information
- Application Number
- CN202421275129.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-04
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-06-04
AI Technical Summary
When used to weigh coffee handles, the accuracy of the weighing is affected and it is inconvenient to use because the rear end of the handle comes into contact with the countertop.
A mini weighing device is designed, including a base, a weighing base and a support plate, which has a rotating connection structure, which is capable of rotating about the rotational axis and is used to support the weighing article when standing on the weighing base.
It achieves high-precision weighing, avoids errors caused by the end of the handle touching the tabletop, and is more convenient to use.
Smart Images
Figure CN222460832U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a weighing technology, in particular to a mini weighing device. Background Art
[0002] Usually when using a coffee handle to make coffee, the user will use an electronic scale to weigh the coffee powder to better control the concentration of the brewed coffee. Because it involves the user's exquisite experience, the electronic scale used is relatively small and the weighing accuracy is required to be relatively high. However, since the coffee handle is relatively large, the tail end of the coffee handle usually touches the countertop, affecting the accuracy of the weighing and making it inconvenient to use. Utility Model Content
[0003] Based on the deficiencies of the prior art, the purpose of the invention is to provide a mini weighing device, which is provided with a support plate and a support part, so as to facilitate supporting the items to be weighed, has high accuracy, is easy to use, and meets user needs.
[0004] In order to achieve the above-mentioned purpose, the utility model provides a mini weighing device, including a base, a scale seat and a support plate, the support plate including a support portion and a first connecting portion, the support portion and the first connecting portion are arranged opposite to each other, the scale seat has a horizontally arranged rotating shaft, the first connecting portion is rotatably connected to the scale seat, the support plate rotates around the rotating shaft between being buckled with the scale seat and standing on the scale seat, and when the support plate stands on the scale seat, the support portion is located above the scale seat and is used to support the items to be weighed.
[0005] As an improvement of the mini weighing device of the utility model, the scale base includes a flat scale plate, the scale plate has a notch, the notch extends from the edge of the scale plate toward the center of the scale plate, a second connecting portion is provided on the side of the notch close to the center of the scale plate, the second connecting portion is rotatably connected to the first connecting portion, and when the support plate is buckled on the scale base, the support plate is accommodated in the notch.
[0006] As an improvement of the mini weighing device of the utility model, the mini weighing device of the utility model further comprises a limit fastener, wherein the limit fastener is fixed on the scale base, the limit fastener has a stop portion, and the stop portion abuts against the support portion in a direction away from the notch.
[0007] As an improvement of the mini weighing device of the utility model, the support plate is also provided with a limit column, and the limit column is located below the scale plate. When the support plate stands on the scale base, the limit column abuts against the scale plate in a direction away from the notch.
[0008] As an improvement of the mini weighing device of the utility model, the position-limiting fastener of the mini weighing device of the utility model is a self-locking hinge, and at least one self-locking hinge is connected between the first connecting part and the second connecting part.
[0009] As an improvement of the mini weighing device of the utility model, the support part of the mini weighing device of the utility model is an arc-shaped groove formed by being depressed along its supporting direction. When the support plate is accommodated in the notch, the support part separates the notch to form a space-avoiding groove. The space-avoiding groove is suitable for manually pulling the support part to rotate the support plate in a direction away from the notch.
[0010] As an improvement of the mini weighing device of the utility model, the limit fastener of the mini weighing device of the utility model is C-shaped, the two ends of the limit fastener can move elastically relative to each other, the opening of the limit fastener is set toward the center of the scale plate, one end of the limit fastener is buckled to the support plate, and the other end of the limit fastener is buckled to the scale plate. The connecting line between the two ends of the limit fastener and the limit fastener are surrounded to form a receiving space. When the rotating shaft is located outside the receiving space, the limit fastener drives the support plate to rotate toward the direction approaching the notch so that the support plate is buckled in the notch. When the rotating shaft is located in the receiving space, the limit fastener drives the support plate to rotate toward the direction away from the notch so that the support plate stands on the scale base.
[0011] As an improvement of the mini weighing device of the utility model, the limiting fastener of the mini weighing device of the utility model is a torsion spring, the rotating shaft is cylindrical, the first connecting part, the second connecting part and the torsion spring are all sleeved on the rotating shaft, and the torsion spring has the stop part and the abutting part. When the stop part abuts against the supporting part in the direction away from the groove, the abutting part abuts against the scale plate in the direction opposite to the rotation of the support plate.
[0012] As an improvement of the mini weighing device of the utility model, the limiting fastener is a spring sheet, which includes a fixing part and an elastic arm extending upward and in a direction away from the fixing part from both ends of the fixing part, the fixing part is fixed in the notch, the two elastic arms are respectively inserted into the support plate along the direction in which the rotating axis extends, and the elastic arms provide an elastic force to rotate the support plate in a direction away from the notch.
[0013] As an improvement of the mini weighing device of the utility model, the scale base of the mini weighing device of the utility model also includes a bottom plate, the scale plate cover is arranged on the bottom plate, the notch penetrates downward to the bottom plate, the bottom plate is provided with a mounting groove and a sliding groove, and also includes a button, a first elastic member, a buckle and a second elastic member, the button is provided with a receiving groove, one side of the button is provided with a first mating surface, the button is installed in the mounting groove and extends into the notch, one end of the first elastic member abuts against the bottom wall of the receiving groove, and the other end abuts against the mounting groove, the buckle includes a sliding portion, a first buckle protrudes upward from the sliding portion, and the first buckle extends into the notch , a blocking portion is provided in the sliding groove, the sliding portion is provided in the sliding groove and can slide along the sliding groove in a direction close to or away from the key, the sliding portion close to the key is provided with a second mating surface at one end thereof and abutting against the first mating surface, the second elastic member is sleeved on the sliding portion, and the end of the second elastic member away from the second mating surface abuts against the blocking portion, the support plate is provided with a second buckle, when the support plate is accommodated in the missing groove, the first buckle is buckled with the second buckle in a direction close to the key, and when the key moves downward along the mounting groove, the sliding portion is driven to slide in a direction away from the key, driving the first buckle to disengage from the second buckle.
[0014] As an improvement of the mini weighing device of the utility model, the support part of the mini weighing device of the utility model is an arc-shaped groove formed by being recessed along its supporting direction. When the support plate is accommodated in the notch, the support part separates the notch into a space-avoiding groove, and the button is located in the space-avoiding groove.
[0015] As an improvement of the mini weighing device of the utility model, the support plate of the mini weighing device of the utility model is provided with a first magnet at one end close to the support part, and the bottom plate is provided with a second magnet corresponding to the first magnet. When the support plate is accommodated in the groove, the first magnet and the second magnet are attracted to each other.
[0016] As an improvement of the mini weighing device of the utility model, the mini weighing device of the utility model also includes an operation panel, which is arranged on the base, the operation panel is arranged adjacent to the scale plate, and the notch is arranged on the side of the scale plate adjacent to the operation panel; or also includes an operation panel, which is arranged on the base, the operation panel is arranged adjacent to the scale plate, and the notch is arranged on the side of the scale plate opposite to the operation panel.
[0017] As an improvement of the mini weighing device of the utility model, the notch of the mini weighing device of the utility model passes through the scale plate along the extension direction of the rotating axis, and the width of the notch along the extension direction of the rotating axis is the same as the width of the support plate.
[0018] As an improvement of the mini weighing device of the utility model, the mini weighing device of the utility model further comprises an hour hand dial, wherein the hour hand dial is arranged adjacent to the scale base, and the hour hand dial is used to display the weight parameters weighed by the mini weighing device.
[0019] Compared with the prior art, the mini weighing device of the utility model has the following beneficial effects: it is provided with a support plate and a support part, which is convenient for supporting the items to be weighed, has high accuracy, is easy to use, and meets user needs. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 This is a schematic diagram of a state in which a support plate of a preferred embodiment of the mini weighing device of the utility model is buckled onto a scale base.
[0021] Figure 2 This is a schematic diagram of the state in which the support plate of the preferred embodiment of the mini weighing device of the utility model stands on the scale base.
[0022] Figure 3 The schematic diagram is a structural diagram of a self-locking hinge of a preferred embodiment of the mini weighing device of the utility model.
[0023] Figure 4 This is a schematic diagram of the rear view of the scale seat of a preferred embodiment of the mini weighing device of the utility model.
[0024] Figure 5 It is a three-dimensional schematic diagram of another embodiment (I) of the mini weighing device of the utility model.
[0025] Figure 6 The mini weighing device of the utility model is another embodiment (I) Figure 5 Section view.
[0026] Figure 7 Other embodiments of the mini weighing device of the utility model (I) Figure 6 Enlarged schematic diagram of circle A.
[0027] Figure 8 This is a schematic diagram of the state in which the support plate of another embodiment (II) of the mini weighing device of the present invention is buckled onto the scale base.
[0028] Fig. 9 This is a schematic diagram of the state in which the support plate of another embodiment (II) of the mini weighing device of the utility model stands on the scale base.
[0029] Fig.10 The mini weighing device of the utility model is another embodiment (II) Figure 8 sectional view of .
[0030] Fig.11 The mini weighing device of the utility model is another embodiment (II) Fig.10 Enlarged schematic diagram of circle B.
[0031] Fig.12 This is a schematic diagram of the connection structure between the support plate and the limiting fastener of another embodiment (II) of the mini weighing device of the utility model.
[0032] Fig.13 It is a structural schematic diagram of another embodiment (three) of the mini weighing device of the utility model.
[0033] Fig.14 It is a structural schematic diagram of another embodiment (fourth) of the mini weighing device of the utility model.
[0034] Fig.15 It is a schematic diagram of the structure of the spring piece of another embodiment (fourth) of the mini weighing device of the utility model.
[0035] Fig.16 It is a structural schematic diagram of another embodiment (fifth) of the mini weighing device of the utility model.
[0036] Fig.17 This is a schematic diagram of the state of the coffee machine handle during weighing according to the preferred embodiment of the mini weighing device of the utility model. DETAILED DESCRIPTION
[0037] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 , Fig.13 , Fig.14 , Fig.15 , Fig.16 and Fig.17 , describe in detail the preferred embodiment, other embodiment (one), other embodiment (two), other embodiment (three), other embodiment (four) and other embodiment (five) of the mini weighing device of the utility model.
[0038] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Fig.17 In this embodiment, the mini weighing device of the utility model includes a base 1, a scale seat 2 and a support plate 3, the support plate 3 includes a support portion 31 and a first connection portion 32, the support portion 31 and the first connection portion 32 are arranged opposite to each other, the scale seat 2 has a horizontally arranged rotation axis a, the first connection portion 32 is rotatably connected to the scale seat 2, the support plate 3 rotates around the rotation axis a between being buckled in the scale seat 2 and standing on the scale seat, when the support plate 3 stands on the scale seat 2, the support portion 31 is located above the scale seat 2 and is used to support the weighed object, when the coffee handle 100 is usually used to brew coffee, the coffee handle 100 includes The handle 102 and the powder bowl 101 for placing coffee powder, the user receives the ground coffee powder in the powder bowl 101, the user needs to control the brewing concentration of the coffee, and the entire coffee handle 100 needs to be weighed. At this time, the user can place the handle 102 and the powder bowl 101 on the support part for positioning, so that the weighing is stable and accurate, does not touch the table, and is easy to use. Of course, the support plate 3 can also be used to position other items for weighing. For example, the coffee basket in the drip coffee machine also needs to be weighed when the coffee powder is placed. The coffee basket is cone-shaped and is not easy to place. It can be positioned through the support plate 3. In this embodiment, the mini weighing device is an electronic scale. In other embodiments, the mini weighing device is a mechanical scale.
[0039] For further reference, Figure 1 , Figure 2 , Figure 3 and Figure 4 In this embodiment, the scale base 2 of the mini weighing device of the utility model includes a flat plate 21, the scale plate 21 has a notch 211, the notch 211 extends from the edge of the scale plate 21 toward the center of the scale plate 21, and the notch 211 is provided with a second connecting portion 212 on one side of the notch 211 close to the center of the scale plate 21, the second connecting portion 212 is rotatably connected to the first connecting portion 32, and when the support plate 3 is buckled on the scale base 2, the support plate 3 is accommodated in the notch 211. When the user needs to use the support plate 3 to assist in weighing, the support plate 3 can be opened to stand on the scale base 2, and when the user does not need to use it, the support plate 3 can be accommodated in the notch 211.
[0040] For further reference, Figure 2 , Figure 3 and Figure 4 In this embodiment, the mini weighing device of the utility model further includes a limit fastener 4, which is fixed on the scale base 2, and has a stop portion 41, which abuts against the support portion 31 in a direction away from the notch 211.
[0041] For further reference, Figure 2 , Figure 3 and Figure 4 , and the support plate 3 is also provided with a limiting column 34, and the limiting column 34 is located below the scale plate 21. When the support plate 3 stands on the scale base 2, the limiting column 34 abuts against the scale plate 21 in a direction away from the notch 211, thereby preventing the support plate 3 from tipping toward the scale plate 21.
[0042] In other embodiments, the support plate 3 of the mini weighing device of the utility model is provided with a first magnet at one end close to the support portion 31, and the bottom plate 22 is provided with a second magnet corresponding to the first magnet. When the support plate 3 is received in the slot 211, the first magnet and the second magnet are attracted to each other and positioned.
[0043] For further reference, Figure 2 , Figure 3 and Figure 4 In this embodiment, the limiting fastener 4 of the mini weighing device of the utility model is a self-locking hinge, and at least one self-locking hinge 4 is connected between the first connecting part 32 and the second connecting part 212. In this embodiment, two of the self-locking hinges 4 are arranged side by side between the first connecting part 32 and the second connecting part 212 along the direction extending from the rotation axis a.
[0044] For further reference, Figure 1 In this embodiment, the support portion 31 of the mini weighing device of the utility model is an arc-shaped groove formed by being recessed along its supporting direction. When the support plate 3 is accommodated in the notch 211, the support portion 31 separates the notch into a space-avoiding groove 2111. The space-avoiding groove 2111 can be used for manually pulling the support portion 31 to rotate the support plate 3 in a direction away from the notch 211.
[0045] For further reference, Figure 1 and Figure 2 In this embodiment, the mini weighing device of the utility model also includes an operation panel 9, which is arranged on the base 1. The operation panel 9 is arranged adjacent to the scale plate 21, and the notch 211 is arranged on a side of the scale plate 21 adjacent to the operation panel 9. The operation panel 9 includes a reset key, an on / off key and a display screen, and the display screen can display the weighed weight in real time.
[0046] In other embodiments, an operation panel 9 is further included. The operation panel 9 is disposed on the base 1 . The operation panel 9 is disposed adjacent to the scale plate 21 . The notch 211 is disposed on the side of the scale plate 21 opposite to the operation panel 9 .
[0047] refer to Figures 5 to 7In other embodiments (I), the limit fastener 4 of the mini weighing device of the utility model is C-shaped, and the two ends of the limit fastener 4 can move elastically relative to each other. The opening of the limit fastener 4 is set toward the center of the scale plate 21, one end of the limit fastener 4 is buckled to the support plate 3, and the other end of the limit fastener 4 is buckled to the scale plate 21. The connecting line between the two ends of the limit fastener 4 and the limit fastener 4 form a receiving space b. When the rotating axis a is located outside the receiving space b, the limit fastener 4 drives the support plate 3 to rotate toward the direction close to the notch 211 so that the support plate 3 is buckled in the notch 211. When the rotating axis a is located in the receiving space b, the limit fastener 4 drives the support plate 3 to rotate toward the direction away from the notch 211 so that the support plate 3 stands on the scale base 2.
[0048] refer to Figures 8 to 12 In other embodiments (two), the limit fastener 4 of the mini weighing device of the utility model is a torsion spring, the rotating axis a is cylindrical, the first connecting part 31, the second connecting part 212 and the torsion spring 4 are all sleeved on the rotating axis a, and the torsion spring 4 has the stop part 41 and the abutment part 42. When the stop part 41 abuts against the support part 31 in the direction away from the groove 211, the abutment part 42 abuts against the scale plate 21 in the direction opposite to the rotation of the support plate 3.
[0049] For further reference, Figures 8 to 12The scale base 2 of the mini weighing device of the utility model also includes a bottom plate 22, the scale plate 21 is covered on the bottom plate 22, the notch 211 penetrates downward to the bottom plate 22, the bottom plate 22 is provided with a mounting groove 221 and a sliding groove 222, and also includes a button 5, a first elastic member 7, a snap member 6 and a second elastic member 8, the button 5 is provided with a receiving groove 51, one side of the button 5 is provided with a first matching surface 52, the button 5 is installed in the mounting groove 221, and extends The first elastic member 7 is inserted into the notch 211, one end of the first elastic member 7 abuts against the bottom wall of the receiving groove 51, and the other end abuts against the installation groove 221. The buckle 6 includes a sliding portion 61, and a first buckle 62 protrudes upward from the sliding portion 61. The first buckle 62 extends into the notch 221. A stopper 223 is provided in the sliding groove 222. The sliding portion 61 is provided in the sliding groove 222 and can move along the sliding groove 222 toward or away from the key 5. When the button 5 is pressed downwardly, the first engaging surface 52 abuts against the second engaging surface 52, and the second elastic member 8 is sleeved on the sliding portion 61. The end of the second elastic member 8 away from the second engaging surface 52 abuts against the blocking portion 223. The support plate 3 is provided with a second buckle 33. When the support plate 3 is received in the notch 211, the first buckle 62 is buckled with the second buckle 33 in the direction close to the button 5. The button 5 is pressed downwardly. When the button 5 moves downwardly along the mounting groove 221, the first engaging surface 52 abuts against the second engaging surface 52, driving the sliding portion 61 to slide in the direction away from the button 5, driving the first buckle 62 to disengage from the second buckle 33. When the button 5 is released, the first elastic member 7 abuts against the button 5 upwardly, and the button 5 moves upwardly to reset. One end of the second elastic member 8 abuts against the blocking portion 223, and the other end of the second elastic member 8 abuts against the sliding portion 61, so that the buckle 6 is reset. In other embodiments, when the support plate 3 is closed in the scale base 2, the support plate 3 covers the top of the pressing button 5, and the pressing button 5 is in a stress-free state. When the weighing device needs to be used, the support plate 3 is pressed downward, and the support plate 3 squeezes the button 5 downward, and the first buckle 62 disengages from the second buckle 33, thereby releasing the constraint on the support plate 3, and the pressing support plate 3 can rotate in a direction away from the notch 211.
[0050] refer to Fig.13 In other embodiment (three), the lengths of the notch 211, the scale plate 21 and the support plate 3 of the mini weighing device of the utility model along the direction of the rotation axis a are the same.
[0051] refer to Fig.14 and Fig.15In other embodiments (four), the difference from embodiment (two) is that the limiting fastener 4 and the way in which the limiting fastener 4 is connected to the first connecting portion 32 and the second connecting portion 212 are different. Specifically, the limiting fastener 4 is a spring sheet, and the spring sheet 4 includes a fixing portion 43 and an elastic arm 41 extending upward and away from the two ends of the fixing portion 43 in a direction away from the fixing portion 43, respectively. The fixing portion 43 is fixed in the notch 211, that is, the bottom plate 22 has a fixing seat 224 protruding upward, and the fixing seat 224 is located in the notch 211, and the fixing portion 43 is clamped on the fixing seat 224, that is, the fixing seat 224 is the second connecting portion 212, and the two elastic arms 41 are respectively inserted into the support plate 3 along the direction in which the rotation axis a extends, that is, the elastic arm 21 is inserted into the first connecting portion 32, and the elastic arm 41 provides an elastic force to rotate the support plate 3 in a direction away from the notch 211, that is, the elastic arm 41 is a stopper 41. When the spring sheet 4 is assembled on the support plate 3, the external force causes the two elastic arms 41 to elastically move in a direction close to each other. When the two elastic arms 41 are aligned with the first connecting portion 32 along the direction extending from the rotation axis a, the external force is removed, and the two elastic arms 41 return to a natural state and are plugged into the first connecting portion 32.
[0052] refer to Fig.16 In other embodiments (five), the mini weighing device of the utility model further includes an hour hand dial c, which is arranged adjacent to the scale base 2, and the hour hand dial c is used to display the weight parameters weighed by the mini weighing device.
[0053] Compared with the prior art, the utility model has the following beneficial effects: it is provided with a support plate and a support part, which is convenient for supporting the items to be weighed, has high accuracy, is easy to use, and meets user needs.
[0054] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Therefore, equivalent changes made according to the scope of the patent application of the present invention are still within the scope covered by the present invention.
Claims
1. A mini weighing device, characterized in that: It includes a base, a scale base and a support plate, the support plate includes a support portion and a first connection portion, the support portion and the first connection portion are arranged opposite to each other, the scale base has a horizontally arranged rotating shaft, the first connection portion is rotatably connected to the scale base, the support plate rotates around the rotating shaft between being buckled in the scale base and standing on the scale base, and when the support plate stands on the scale base, the support portion is located above the scale base and is used to support the items to be weighed.
2. The mini weighing device according to claim 1, characterized in that: The scale base includes a flat scale plate, which has a notch extending from the edge of the scale plate toward the center of the scale plate. A second connecting portion is provided on the side of the notch close to the center of the scale plate, and the second connecting portion is rotatably connected to the first connecting portion. When the support plate is buckled on the scale base, the support plate is accommodated in the notch.
3. The mini weighing device according to claim 2, characterized in that: It also includes a limit fastener, which is fixed on the scale base and has a stopper, and the stopper abuts against the support part in a direction away from the notch.
4. The mini weighing device according to claim 3, characterized in that: The support plate is also provided with a limiting column, and the limiting column is located below the scale plate. When the support plate stands on the scale base, the limiting column abuts against the scale plate in a direction away from the notch.
5. The mini weighing device according to claim 3, characterized in that: The position-limiting fastener is a self-locking hinge, and at least one self-locking hinge is connected between the first connecting portion and the second connecting portion.
6. The mini weighing device according to claim 3, characterized in that: The support portion is an arc-shaped groove formed by being recessed along its supporting direction. When the support plate is accommodated in the notch, the support portion separates the notch into an escape groove. The escape groove is suitable for manually pulling the support portion to rotate the support plate in a direction away from the notch.
7. The mini weighing device according to claim 3, characterized in that: The limit fastener is C-shaped, and the two ends of the limit fastener can move elastically relative to each other. The opening of the limit fastener is set toward the center of the scale plate, one end of the limit fastener is buckled to the support plate, and the other end of the limit fastener is buckled to the scale plate. The connecting line between the two ends of the limit fastener and the limit fastener form a receiving space. When the rotating shaft is located outside the receiving space, the limit fastener drives the support plate to rotate toward the direction approaching the notch so that the support plate is buckled in the notch. When the rotating shaft is located in the receiving space, the limit fastener drives the support plate to rotate toward the direction away from the notch so that the support plate stands on the scale base.
8. The mini weighing device according to claim 3, characterized in that: The limiting fastener is a torsion spring, the rotating shaft is cylindrical, the first connecting part, the second connecting part and the torsion spring are all sleeved on the rotating shaft, and the torsion spring has the stop part and the abutment part. When the stop part abuts against the supporting part in the direction away from the groove, the abutment part abuts against the scale plate in the direction opposite to the rotation of the support plate.
9. The mini weighing device according to claim 3, characterized in that: The limiting fastener is a spring sheet, which includes a fixing portion and an elastic arm extending upward and in a direction away from the fixing portion from both ends of the fixing portion, the fixing portion is fixed in the notch, and the two elastic arms are respectively inserted into the support plate along the direction in which the rotating axis extends, and the elastic arms provide an elastic force to rotate the support plate in a direction away from the notch.
10. The mini weighing device according to claim 8 or 9, characterized in that: The scale base also includes a bottom plate, the scale plate cover is arranged on the bottom plate, the notch extends downward to the bottom plate, the bottom plate is provided with a mounting groove and a sliding groove, and also includes a button, a first elastic member, a buckle member and a second elastic member, the button is provided with a receiving groove, one side of the button is provided with a first matching surface, the button is installed in the mounting groove and extends into the notch, one end of the first elastic member abuts against the bottom wall of the receiving groove, and the other end abuts against the mounting groove, the buckle member includes a sliding portion, a first buckle protrudes upward from the sliding portion, the first buckle extends into the notch, a blocking portion is provided in the sliding groove, and the sliding The movable part is arranged in the sliding groove and can slide along the sliding groove in a direction close to or away from the key. The end of the sliding part close to the key is provided with a second matching surface abutting against the first matching surface. The second elastic member is sleeved on the sliding part, and the end of the second elastic member away from the second matching surface abuts against the blocking part. The support plate is provided with a second buckle. When the support plate is accommodated in the missing groove, the first buckle is buckled with the second buckle in a direction close to the key. When the key moves downward along the installation groove, the sliding part is driven to slide in a direction away from the key, driving the first buckle to disengage from the second buckle.
11. The mini weighing device according to claim 10, characterized in that: The support portion is an arc-shaped groove formed by being recessed along its supporting direction. When the support plate is received in the notch, the support portion separates the notch into a space-avoiding groove, and the button is located in the space-avoiding groove.
12. The mini weighing device according to claim 10, characterized in that: The support plate is provided with a first magnet at one end close to the support portion, and the bottom plate is provided with a second magnet corresponding to the first magnet. When the support plate is received in the slot, the first magnet and the second magnet are attracted to each other.
13. The mini weighing device according to claim 2, characterized in that: It also includes an operation panel, which is arranged on the base, the operation panel is arranged adjacent to the scale plate, and the notch is arranged on the side of the scale plate adjacent to the operation panel; or it also includes an operation panel, which is arranged on the base, the operation panel is arranged adjacent to the scale plate, and the notch is arranged on the side of the scale plate opposite to the operation panel.
14. The mini weighing device according to claim 2, characterized in that: The lengths of the notch, the scale plate and the support plate along the direction of the rotation axis are the same.
15. The mini weighing device according to claim 1, characterized in that: It also includes an hour hand dial, which is arranged adjacent to the scale base and is used to display the weight parameters weighed by the mini weighing device.