Weighing device

Abstract

Weighing device, characterized in that it comprises: a surface shell (1); an interactive component (2) that is arranged on the surface shell (1); a support plate (5) located below the interactive component (2), wherein the support plate (5) is provided with a first recess (51), the first recess (51) being located below the interactive component (2); a flat plate (6) which is arranged on a side of the support plate (5) facing away from the surface shell (1), wherein the flat plate (6) is provided with a limiting hole (61), wherein the limiting hole (61) is in conjunction with the first recess (51); and a first sensor (10) which is arranged on a side of the flat plate (6) facing away from the support plate (5), wherein the first sensor (10) has a strain gauge (12) which is arranged at least partially facing the limiting hole (61) and can deform through the limiting hole (61) in the first recess (51).

Description

TECHNICAL AREA

[0001] The present utility model relates to the field of weighing technology, in particular a weighing device. STATE OF THE ART

[0002] In weighing systems with interactive components and sensors, the area where the interactive components are located is generally not designed for the placement of the object to be weighed. Therefore, the sensors are usually not located in the same area as the interactive components. This results in a less compact structure and a less small and lightweight design for the weighing system. Furthermore, the uneven load distribution across all sensors leads to inaccurate weighing results.

[0003] Currently, providing a weighing device with a small and lightweight design and precise weighing accuracy presents an urgent technical problem for the expert to solve. DISCLOSURE OF THE USE PATTERN

[0004] In view of this, the purpose of the present utility model is to provide a weighing device characterized by a smaller and lighter design and high weighing accuracy.

[0005] To solve the aforementioned problem, the present utility model provides the following technical solution:

[0006] A weighing system will be provided, which includes: a surface shell; an interactive component that is located on the surface shell; a support plate located below the interactive component, wherein the support plate is provided with a first recess, the first recess being located below the interactive component; a flat plate arranged on a side of the support plate facing away from the surface shell, wherein the flat plate is provided with a limiting hole, the limiting hole being in conjunction with the first recess; and a first sensor located on a side of the flat plate facing away from the support plate, wherein the first sensor has a strain gauge which is at least partially directed towards the limiting hole and which can deform through the limiting hole in the first recess.

[0007] In another aspect, it is provided that the first sensor further comprises a first support section, wherein the first support section is connected to the strain gauge within the first sensor; and that a first locking element is provided on a side of the flat plate facing away from the support plate, wherein the first locking element is arranged on the outer circumference of the limiting hole and the first locking element rests against the first support section, thereby fixing the first support section on the side of the flat plate facing away from the support plate.

[0008] In another aspect, it is provided that the weighing device further comprises a printed circuit board, the printed circuit board being located on a side of the flat plate facing away from the support plate; and that a second locking element is provided on a side of the flat plate facing away from the support plate, wherein the second locking element rests against the circuit board, thereby fixing the circuit board on the side of the flat plate facing away from the support plate.

[0009] In another aspect, it is stipulated that the area of ​​the flat plate is smaller than that of the supporting plate; that the weighing device further comprises a second sensor which is arranged on the side of the support plate facing away from the surface shell; and that the support plate is provided with a second recess, wherein the second sensor has a strain gauge which is at least partially directed towards the second recess and can deform in the second recess.

[0010] In another aspect, it is provided that the second sensor further comprises a second support section, wherein the second support section is connected to the strain gauge within the second sensor; and that the support plate is provided with an insertion hole, the insertion hole being arranged on the outer circumference of the second recess, so that a third locking element provided on the surface shell rests against the second support section through the insertion hole, thereby fixing the second support section to the side of the support plate facing away from the surface shell.

[0011] In another aspect, it is provided that several stops are provided on the side of the support plate facing away from the surface shell, with the several stops enclosing the outer circumference of the second sensor.

[0012] In another aspect, it is provided that in one or two corner positions of the support plate, the first recess is provided in its width direction, while in another corner position of the support plate, the second recess is provided.

[0013] In another aspect, it is provided that the surface shell is divided lengthwise into a display area and a weighing area, with the display area being located on a left side of the surface shell, while the weighing area is located on a right side of the surface shell; that the weighing device further comprises a battery, wherein the battery is arranged on the side of the support plate facing away from the surface shell; and that, in the direction of gravity, the support plate is located below the display area and the weighing area, the flat plate is positioned below the display area, and the battery is located below the weighing area.

[0014] Another aspect is that the flat plate is made of insulating material.

[0015] In another aspect, the weighing device further comprises a lower shell and support feet, wherein the lower shell and the surface shell are interlocked to form a receiving space, the support feet being arranged so that they are guided through the lower shell, and the first sensor and the second sensor being located in the receiving space with their respective strain gauges mounted on different support feet.

[0016] The weighing device of the present utility model has the following advantageous aspects: (1) The interactive component is arranged on the surface shell, and the support plate is arranged below the interactive component. The flat plate is positioned on a side of the support plate facing away from the surface shell, i.e., the flat plate is positioned below the interactive component. The first sensor can be mounted on a side of the flat plate facing away from the support plate, below the interactive component. This prevents the interactive component and the first sensor below it from interfering with each other during assembly, thus enabling the first sensor to be positioned below the interactive component. This allows for a compact internal structure of the weighing device with a small and lightweight design. (2) The flat plate is arranged on the side of the support plate facing away from the surface tray, and the first sensor is arranged on the side of the flat plate facing away from the support plate; that is, the support plate is positioned between the surface tray and the first sensor. Therefore, when the object is placed on the surface tray for weighing, the support plate can counterbalance the weight of the object and transfer it to the first sensor. This ensures a uniform force load on the sensor of the weighing device, thus guaranteeing weighing accuracy. (3) The mounting plate is provided with the first recess, which is located below the interactive component. The flat plate is provided with the limiting hole, which is connected to the first recess. The strain gauge of the first sensor faces the limiting hole, so that the strain gauge of the first sensor can deform, at least partially, in the first recess after the first sensor has deformed under force. This prevents the mounting plate from impeding the deformation of the strain gauge and affecting the sensor's measurement results. Thus, weighing accuracy is ensured. BRIEF DESCRIPTION OF THE DRAWING

[0017] To better illustrate the embodiments according to the present utility model or the embodiments in the prior art, the accompanying drawings used in the embodiments are briefly described below. It is understood that the following drawings merely represent the embodiments of the present utility model and that it is possible for a person skilled in the art in this field to obtain further drawings from the provided drawings without inventive activity. These drawings show: Fig. 1 an exploded view of a structure of a weighing device according to the present utility model; Fig. 2 a section of the assembly of the weighing device according to the present utility model; Fig. 3 a representation of the positional relationship between a support plate, a first sensor and a second sensor according to the present utility model; Fig. 4 a front view of the surface shell according to the present utility model; Fig. 5 a bottom view of the surface shell according to the present utility model; as well as Fig. 6 a structural representation of the first sensor and the second sensor according to the present utility model. Reference symbol list:

[0018] 1 - Surface shell, 2 - Interactive component, 3 - Elastic support element, 4 - Connector, 5 - Support plate, 51 - First recess, 52 - Second recess, 53 - Insertion hole, 54 - Stop, 55 - Insertion opening, 56 - Battery groove, 57 - Charging plate groove, 6 - Flat plate, 61 - Limiting hole, 62 - First locking element, 63 - Second locking element, 7 - Circuit board, 8 - Charging plate, 9 - Battery, 10 - First sensor; 101 - first support section, 11 - second sensor, 111 - second support section, 12 - strain gauge, 13 - support foot, 14 - lower shell, 141 - through hole, 15 - third locking element, 151 - support rod, 152 - locking block, 16 - screw, 17 - display area, 18 - weighing area, 19 - first mounting hole, 20 - second mounting hole. DETAILED DESCRIPTION

[0019] In connection with the figures in the embodiments of this utility model, the technical solutions in these embodiments are described clearly and completely below. Obviously, the embodiments described do not represent all embodiments, but only a subset of the embodiments of this utility model. Based on the embodiments of the utility model, all other embodiments that could be obtained by a person skilled in the art without creative effort should fall within the scope of protection of the utility model.

[0020] The core of the present utility model is to provide a weighing device that is characterized by a smaller and lighter design and delivers precise weighing results.

[0021] It should be noted that in the exemplary embodiments, the orientation or position relationship indicated by terms such as "top," "bottom," "left," "right," etc., is based on the orientation or position relationship shown in the drawings and serves only to facilitate and simplify the description of the present application. It does not indicate or imply that the designated device or component must have a specific orientation or be designed and operated in a specific orientation. Therefore, the aforementioned terms cannot be understood as limitations of the present application. Furthermore, the terms "first," "second," and "third" serve solely for descriptive purposes, without implicitly or explicitly indicating their relative importance.

[0022] With reference to Fig. 1 The present application provides a weighing device comprising a surface tray 1, an interactive component 2, a support plate 5, a flat plate 6 and a first sensor 10.

[0023] The interactive component 2 is located on the surface shell 1.

[0024] The support plate 5 is located below the interactive component 2, wherein the support plate 5 is provided with a first recess 51, the first recess 51 being located below the interactive component 2.

[0025] The flat plate 6 is arranged on a side of the support plate 5 facing away from the surface shell 1, wherein the flat plate 6 is provided with a limiting hole 61, the limiting hole 61 being in conjunction with the first recess 51.

[0026] The first sensor 10 is arranged on a side of the flat plate 6 facing away from the support plate 5, wherein the first sensor 10 has a strain gauge 12 which is arranged at least partially facing the limiting hole 61 and can deform through the limiting hole 61 in the first recess 51.

[0027] It should be noted that the interactive component 2 can either include a separate touch panel for user touch input to perform corresponding operations, or a separate screen for displaying numerical data, images, and other content. Alternatively, it can use a touch-sensitive display screen that integrates the touch and display functions.

[0028] The interactive component 2 is located on the back side of the surface shell 1. An elastic support element 3 is located on the side of the interactive component 2 facing away from the surface shell 1, with the elastic support element 3 resting against the support plate 5. The elastic support element 3 supports the interactive component 2 and simultaneously serves to isolate the interactive component 2 from the support plate 5, thus preventing the support plate 5 from compressing and damaging the interactive component 2. The elastic support element 3 can be made of foam or rubber padding.

[0029] The mounting plate 5 serves not only to secure and mount the flat plate 6, the first sensor 10, or other electronic components (such as the battery 9 and the charging plate 8), but also to balance the weight of the object and transfer it to the individual sensors. Therefore, the mounting plate 5 is made of materials with high structural strength, giving it high load-bearing capacity and resistance to deformation. This ensures improved support for the components and effective weight distribution.

[0030] It should also be noted that during the weighing process, the force of gravity exerted by the object causes elastic deformation of the sensor's strain gauge. The degree of deformation of the strain gauge under force is directly proportional to the object's weight. This deformation of the strain gauge is converted into an electrical signal via a physical mechanism, which is then amplified, filtered, and digitally processed before being output to the interactive component 2. The support plate 5 is provided with a first recess 51, and the flat plate 6 is provided with a limiting hole 61, the limiting hole 61 and the first recess 51 being connected and located below the interactive component 2.The first sensor 10, located below the interactive component 2, is positioned on the side of the flat plate 6 facing away from the support plate 5. The strain gauge 12 of the first sensor 10 is at least partially oriented towards the limiting hole 61 and can deform within the first recess 51 through the limiting hole 61. This prevents the support plate 5 from obstructing the deformation of the strain gauge and impairing the sensor's readings. Thus, weighing accuracy is ensured.

[0031] The weighing device in the embodiments of the present utility model has the following advantageous aspects:

[0032] First: The interactive component 2 is arranged on the surface shell 1, and the support plate 5 is arranged below the interactive component 2. The flat plate 6 is arranged on a side of the support plate 5 facing away from the surface shell 1; that is, the flat plate 6 is positioned below the interactive component 2. The first sensor 10 can be mounted on a side of the flat plate 6 facing away from the support plate 5, below the interactive component 2. This prevents the interactive component 2 and the first sensor 10 positioned below it from interfering with each other during assembly, thus achieving the position of the first sensor 10 below the interactive component 2. This allows for a compact internal structure of the weighing device with a small and lightweight design.

[0033] Secondly: On the side of the support plate 5 facing away from the surface tray 1, the flat plate 6 is arranged, and on the side of the flat plate 6 facing away from the support plate 5, the first sensor 10 is arranged; that is, the support plate 5 is positioned between the surface tray 1 and the first sensor 10. Therefore, when the object is placed on the surface tray 1 for weighing, the support plate 5 can counterbalance the weight of an object and transfer it to the first sensor 10. This ensures a uniform force load on the sensor of the weighing device, thus guaranteeing weighing accuracy.

[0034] Thirdly: The support plate 5 is provided with the first recess 51, which is located below the interactive component 2. The flat plate 6 is provided with the limiting hole 61, which is connected to the first recess 51. The strain gauge 12 of the first sensor 10 faces the limiting hole 61, so that the strain gauge of the first sensor 10 can deform, at least partially, in the first recess 51 after the first sensor 10 has deformed under force. This prevents the support plate 5 from hindering the deformation of the strain gauge 12 and impairing the sensor's measurement results. Thus, the weighing accuracy is ensured.

[0035] With reference to Fig. In the embodiment described above, the first sensor 10 further comprises a first support section 101, wherein the first support section 101 is connected to the strain gauge 12 within the first sensor 10. A first locking element 62 is provided on the side of the flat plate 6 facing away from the support plate 5, wherein the first locking element 62 is arranged on the outer circumference of the limiting hole 61 and bears against the first support section 101, thereby fixing the first support section 101 to the side of the flat plate 6 facing away from the support plate 5.

[0036] In particular, the first support section 101 is used as a support structure for the first sensor 10 to support and connect the strain gauge 12. The first locking element 62 is provided on the side of the flat plate 6 facing away from the support plate 5. The first locking element 62 is arranged on the outer circumference of the limiting hole 61 and rests against the first support section 101 of the first sensor 10, thereby fixing the first support section 101 to the side of the flat plate 6 facing away from the support plate 5 and positioning it below the limiting hole 61. At least a portion of the strain gauge 12 connected to the first support section 101 faces the limiting hole 61.

[0037] As can be seen from the structure described above, the first sensor 10 is fixed to the side of the flat plate 6 facing away from the support plate 5 by means of the first locking element 62. Compared to conventional fasteners such as screws, this mounting method is simpler and allows for easier removal and installation of the first sensor 10. Additionally, the first locking element 62 rests against the first support section 101 within the first sensor 10 and presses the first support section 101 firmly against the flat plate 6. This ensures that the first support section 101 and the flat plate 6 are in close contact. After the object's gravity has been balanced via the support plate 5, it can be effectively transferred to the first support section 101 via the flat plate 6.The first support section 101 then exerts the force of gravity in the opposite direction on the strain gauge 12, so that the degree of deformation of the strain gauge 12 precisely reflects the gravity of the object. This ensures weighing accuracy.

[0038] At least two first locking elements 62 are provided, wherein at least two first locking elements 62 are arranged evenly distributed around the outer circumference of the limiting hole 61 in order to improve the stability of the mounting of the first sensor 10.

[0039] With reference to Fig. 2 is based on the above embodiment, in which the weighing device further comprises a printed circuit board 7, wherein the printed circuit board 7 is located on the side of the flat plate 6 facing away from the support plate 5, and in which a second locking element 63 is provided on the side of the flat plate 6 facing away from the support plate 5, wherein the second locking element 63 rests against the printed circuit board 7, thereby fixing the printed circuit board 7 on the side of the flat plate 6 facing away from the support plate 5.

[0040] As can be seen from the structure described above, attaching the circuit board 7 to the side of the flat plate 6 facing away from the support plate 5 using the second locking element 63 achieves the following effects: On the one hand, this allows for full utilization of the installation space on the side of the flat plate 6 facing away from the support plate 5, enabling the circuit board 7 and the first sensor 10 to be arranged compactly, thus improving the compactness of the internal structure of the weighing device. On the other hand, the use of the second locking element 63 for attaching the circuit board 7 allows for a simpler assembly process as well as easier removal and installation of the circuit board 7 compared to conventional fasteners such as screws.

[0041] At least two second locking elements 63 are provided, wherein at least two second locking elements 63 are arranged evenly around the circuit board 7 to improve stability during the assembly of the circuit board 7.

[0042] It should also be noted that circuit board 7 is responsible for receiving and processing the weight signals transmitted by the sensors. When the object is placed on the surface tray 1, the sensors convert its weight into electrical signals. These signals are then received and processed by circuit board 7, with the final signal being transmitted to interactive component 2 to display the object's precise weight. As shown in Fig. 1 to Fig. As shown in Figure 3, the interactive component 2 is connected to a connector 4. The connector 4 is guided through a insertion opening 55 in the mounting plate 5 and then connected to the circuit board 7, thus enabling signal interaction between the interactive component 2 and the circuit board 7. Furthermore, the first sensor 10 is connected to the circuit board 7 via a signal connection to enable signal interaction between the first sensor 10 and the circuit board 7.

[0043] With reference to Fig. 2 is based on the above embodiment, in that the area of ​​the flat plate 6 is smaller than that of the support plate 5, that the weighing device further comprises a second sensor 11 which is arranged on the side of the support plate 5 facing away from the surface shell 1, and that the support plate 5 is provided with a second recess 52, wherein the second sensor 11 has a strain gauge 12 which is arranged at least partially facing the second recess 52 and can deform in the second recess 52.

[0044] Because the surface area of ​​the flat plate 6 is smaller than that of the support plate 5, the flat plate 6 is positioned in such a way that it does not need to cover the side of the support plate 5 facing away from the surface shell 1. This is possible as long as the flat plate 6 can only be positioned below the interactive component 2 in order to fix and mount the first sensor 10 below the interactive component 2. This arrangement simplifies the machining of the flat plate 6 and reduces its machining costs. Furthermore, by attaching the circuit board 7 to the flat plate 6, the circuit board 7 and the first sensor 10 can be positioned centrally below the interactive component 2. This increases the compactness of the internal structure of the weighing device.

[0045] A second sensor 11 is also arranged on the side of the support plate 5 facing away from the surface shell 1. This second sensor 11 operates simultaneously with the first sensor 10, so that the weight of the object can be distributed more effectively and thus the weighing accuracy can be increased. Furthermore, the support plate 5 is provided with a second recess 52, the second sensor 11 having a strain gauge 12 that is at least partially oriented towards the second recess 52 and can deform within it. This prevents the support plate 5 from impeding the deformation of the strain gauge 12 and thus preventing it from affecting the sensor's readings. This ensures the weighing accuracy.

[0046] With reference to Fig. 2, Fig. 3 and Fig. Based on the above embodiment, it is provided that the second sensor 11 further comprises a second support section 111, wherein the second support section 111 is connected to the strain gauge 12 inside the second sensor 11; and that the support plate 5 is provided with an insertion hole 53, wherein the insertion hole 53 is arranged on the outer circumference of the second recess 52, so that a third locking element 15, which is provided on the surface shell 1, bears against the second support section 111 through the insertion hole 53, thereby fixing the second support section 111 to the side of the support plate 5 facing away from the surface shell 1.

[0047] In particular, the second support section 111 is used as a support structure for the second sensor 11 to support and connect the strain gauge 12. The mounting plate 5 is provided with the insertion hole 53, which is located on the outer circumference of the second recess 52. The third locking element 15 is arranged in a position on the surface shell 1 corresponding to the insertion hole 53, with the third locking element 15 bearing against the second support section 111 through the insertion hole 53, thus fixing the second support section 111 to the side of the mounting plate 5 facing away from the surface shell 1.

[0048] As can be seen from the structure described above, the second sensor 11 is fixed to the side of the support plate 5 facing away from the surface shell 1 by means of the third locking element 15. Compared to conventional fasteners such as screws, this mounting method is simpler and allows for easier removal and installation of the second sensor 11. Additionally, the third locking element 15 rests against the second support section 111 within the second sensor 11 and presses the second support section 111 firmly against the support plate 5. This ensures that the second support section 111 and the support plate 5 are in close contact. Once the object's gravity has been balanced via the support plate 5, it can be effectively transferred to the second support section 111 via the support plate 5.The second support section 111 then exerts the force of gravity in the opposite direction on the strain gauge 12, so that the degree of deformation of the strain gauge 12 precisely reflects the gravity of the object. This ensures weighing accuracy.

[0049] Referring to Fig. The third locking element 15 comprises a support rod 151 and a locking block 152. The support rod 151 is arranged vertically on the surface shell 1. The end of the support rod 151 furthest from the surface shell 1 is connected to the locking block 152. The locking block 152 passes through the insertion hole 53 in the mounting plate 5 and rests against the second support section 111 of the second sensor 11. The third locking element 15 uses the structure described above, so that when attaching the second sensor 11, the vertical support rod 151 of the third locking element 15 simultaneously serves as a guide during the assembly of the mounting plate 5, thus facilitating correct assembly of the mounting plate 5.

[0050] With reference to Fig. 2, based on the above embodiment, provides that several stops 54 are provided on the side of the support plate 5 facing away from the surface shell 1, wherein the several stops 54 enclose the outer circumference of the second sensor 11. This allows the several stops 54 to effectively limit the displacement of the second sensor 11.

[0051] With reference to Fig. 1 and Fig. 3 is provided based on the above embodiment that in one or two corner positions of the support plate 5 in its width direction the first recess 51 is provided, while in another corner position of the support plate 5 the second recess 52 is provided.

[0052] Because the first recess 51 is provided in one or two corner positions of the support plate 5 in its width direction, the flat plate 6 is arranged in the width direction corresponding to one or two corner positions of the support plate 5, since the flat plate 6 has the limiting hole 61, which is connected to the first recess 51. Furthermore, since the first sensor 10 is arranged on the flat plate 6 and at least a portion of the strain gauge 12 of the first sensor 10 faces the limiting hole 61, it can be easily deduced that the first sensor 10 is arranged in the width direction of the support plate 5 in one or both corner positions.Because the second recess 52 is provided in a different corner position of the support plate 5, it can be easily deduced that the second sensor 11 is also located in this other corner position. This is because the second sensor 11 is positioned on the support plate 5, and at least part of the strain gauge 12 of the second sensor 11 faces the second recess 52. Thus, sensors are arranged at all four corner positions of the support plate 5. During weighing, the weight of the object, regardless of its position on the surface plate 1, can be distributed evenly across the four sensors, thereby improving weighing accuracy.

[0053] Furthermore, the flat plate 6 is positioned according to one or two corner positions of the support plate 5 in its width direction. Since the interactive component 2 is located above the flat plate 6 and the circuit board 7 is located on the flat plate 6, the interactive component 2 and the circuit board 7 can be arranged centrally within the interior on one side along the width direction of the weighing device, thus fully utilizing the space in the width direction and making the internal structure of the weighing device more compact.

[0054] With reference to Fig. 1 and Fig. Figure 4, based on the above embodiment, provides that the surface shell 1 is divided longitudinally into a display area 17 and a weighing area 18, with the display area 17 being located on the left side of the surface shell 1 and the weighing area 18 being located on the right side of the surface shell 1. The weighing device further comprises a battery 9, the battery 9 being arranged on the side of the support plate 5 facing away from the surface shell 1. In the direction of gravity, the support plate 5 is located below the display area 17 and the weighing area 18, the flat plate 6 is positioned below the display area 17, and the battery 9 is located below the weighing area 18.

[0055] In particular, the surface shell 1 is divided lengthwise into the display area 17 and a weighing area 18. The display area 17 primarily serves to display weighing data, while the weighing area 18 primarily serves for placing objects to be weighed. The support plate 5 is located below the display area 17 and the weighing area 18, and the flat plate 6 is located below the display area 17. Since the interactive component 2 is located between the surface shell 1 and the support plate 5, and the circuit board 7 is arranged on a side of the flat plate 6 facing away from the surface shell 1, the interactive component 2 and the circuit board 7 are located sequentially below the display area 17 in the direction of gravity, while the battery 9 is located in the weighing area 18. This reduces the thickness of the display area 17 and thus also the overall thickness of the weighing device.

[0056] Additionally, the interactive component 2 below the display area 17 can be connected to external devices (e.g., a mobile phone) for information exchange. The display area 17 is located on the left side of the surface tray 1, while the weighing area 18 is located on the right side of the surface tray 1. This arrangement allows the user to operate the mobile phone with their right hand and the interactive component 2 of the weighing device with their left hand.

[0057] The specific installation method of battery 9 is shown based on the Fig. 1 to 3 explained. The support plate 5 below the weighing area 18 is equipped with a battery groove 56, the battery groove 56 engaging with the battery 9 to facilitate the mounting of the battery 9 on the support plate 5.

[0058] Based on the above embodiment, the flat plate 6 consists of an insulating material, for example, a plastic sheet or a resin sheet. The flat plate 6 uses an insulating layer to prevent the risk of short circuits that could be caused by contact between the flat plate 6 and the printed circuit board 7.

[0059] With reference to Fig. Based on the above embodiment, the weighing device further comprises a lower shell 14 and support feet 13, wherein the lower shell 14 and the surface shell 1 are interlocked to form a receiving space, the support feet 13 being arranged so that they are guided through the lower shell 14, and the first sensor 10 and the second sensor 11 are located in the receiving space and their respective strain gauges 12 are mounted on different support feet 13.

[0060] In particular, the circumference of the surface shell 1 is provided with several first snap-in sections, while the circumference of the lower shell 14 has several second snap-in sections. These several first snap-in sections correspond one-to-one with the several second snap-in sections and interlock via a snap connection, thereby snapping the lower shell 14 and the surface shell 1 together. This assembly method facilitates disassembly and assembly. The lower shell 14 and the surface shell 1 form a receiving space in which the interactive component 2, the support plate 5, the flat plate 6, the circuit board 7, the battery 9, the first sensor 10, and the second sensor 11 are housed.

[0061] The lower shell 14 is provided with through-holes 141 at positions corresponding to both the first sensor 10 and the second sensor 11. The support feet 13 extend through these through-holes 141 in the lower shell 14 and project beyond the receiving space to support the weighing device. Furthermore, the strain gauges 12 are mounted on separate support feet 13 within the first sensor 10 and the second sensor 11. This arrangement allows the strain gauges 12 to fully utilize the interior space of the support feet 13, thus facilitating a reduction in the thickness of the weighing device.

[0062] It should also be noted that, as in Fig.As shown in Figure 6, the first support section 101 of the first sensor 10 is connected to a support foot 13, and the second support section 111 of the second sensor 11 is also connected to a support foot 13. Thus, each sensor maintains stable contact with the ground or support platform via the support foot 13 during weighing. The weight of the object is distributed evenly across the support sections of each sensor via the support plate 5. That is, the support plate 5 exerts pressure on the support sections of each sensor. Since these support sections are integrally connected to the support feet 13, the support feet 13 exert pressure on the ground or support platform. The support feet 13 then experience an upward reaction force. Because the support feet 13 are connected to the

[0063] When the strain gauges 12 of the individual sensors are connected, these strain gauges 12 are displaced upwards and deformed. The weighing device determines the mass of the object by measuring this deformation of the strain gauges.

[0064] Regarding the mounting method of the support plate 5, several first mounting holes 19 are provided on the side of the surface shell 1 facing the lower shell 14. Several second mounting holes 20 are provided on the support plate 5, with each of the several second mounting holes 20 corresponding one-to-one to the several first mounting holes 19. The screws 16 are inserted through the second mounting holes 20 on the support plate 5 and fastened in the corresponding first mounting holes 19 on the surface shell 1, thereby fixing the support plate 5 to the surface shell 1.

[0065] The weighing device also includes a loading platform 8. The support plate 5 below the weighing area 18 is provided with a loading platform groove 57, the opening of which faces the lower tray 14. The lower tray 14 is equipped with a charging port that connects to the loading platform groove 57. The loading platform 8 is secured in the loading platform groove 57, and the charging port allows for the connection of an external power supply to charge the weighing device.

[0066] It should be noted that the relational terms such as "first" and "second" are used in the present description merely to distinguish one object from another, without asserting or implying any actual relationship or order between these objects.

[0067] Each embodiment in this description is described step by step, and each embodiment focuses on the differences from other embodiments, and the same or similar parts of each embodiment can be related to each other.

[0068] The weighing device according to the present utility model is described in more detail above. Specific examples have been used to illustrate the concepts and embodiments of the present utility model, and the above embodiments serve only to facilitate a better understanding of the solutions and core ideas of the present utility model. It should be noted that a person skilled in the art can make several improvements and modifications to the present utility model without deviating from its fundamental principle. Such improvements and modifications also fall within the scope of protection of the claims of the present utility model.

Claims

[1] Weighing device, characterized by that it includes: a surface shell (1); an interactive component (2) that is arranged on the surface shell (1); a support plate (5) located below the interactive component (2), wherein the support plate (5) is provided with a first recess (51), the first recess (51) being located below the interactive component (2); a flat plate (6) which is arranged on a side of the support plate (5) facing away from the surface shell (1), wherein the flat plate (6) is provided with a limiting hole (61), wherein the limiting hole (61) is in conjunction with the first recess (51); and a first sensor (10) which is arranged on a side of the flat plate (6) facing away from the support plate (5), wherein the first sensor (10) has a strain gauge (12) which is arranged at least partially facing the limiting hole (61) and can deform through the limiting hole (61) in the first recess (51). [2] Weighing device according to claim 1, characterized by, that the first sensor (10) further comprises a first support section (101), wherein the first support section (101) is connected to the strain gauge (12) within the first sensor (10); and that a first locking element (62) is provided on a side of the flat plate (6) facing away from the support plate (5), wherein the first locking element (62) is arranged on the outer circumference of the limiting hole (61) and the first locking element (62) bears against the first support section (101), thereby fixing the first support section (101) to the side of the flat plate (6) facing away from the support plate (5). [3] Weighing device according to claim 1, characterized by, that the weighing device further comprises a printed circuit board (7), wherein the printed circuit board (7) is located on a side of the flat plate (6) facing away from the support plate (5); and that a second locking element (63) is provided on a side of the flat plate (6) facing away from the support plate (5), wherein the second locking element (63) rests against the printed circuit board (7), thereby fixing the printed circuit board (7) to the side of the flat plate (6) facing away from the support plate (5). [4] Weighing device according to claim 1, characterized by , that the area of ​​the flat plate (6) is smaller than that of the support plate (5); that the weighing device further comprises a second sensor (11) which is arranged on the side of the support plate (5) facing away from the surface shell (1); and that the support plate (5) is provided with a second recess (52), wherein the second sensor (11) has a strain gauge (12) which is arranged at least partially facing the second recess (52) and can deform in the second recess (52). [5] Weighing device according to claim 4, characterized by , that the second sensor (11) further comprises a second support section (111), wherein the second support section (111) is connected to the strain gauge (12) within the second sensor (11); and that the support plate (5) is provided with an insertion hole (53), wherein the insertion hole (53) is arranged on the outer circumference of the second recess (52), such that a third locking element (15) provided on the surface shell (1) bears against the second support section (111) through the insertion hole (53), thereby fixing the second support section (111) to the side of the support plate (5) facing away from the surface shell (1). [6] Weighing device according to claim 4, characterized by , that several stops (54) are provided on the side of the support plate (5) facing away from the surface shell (1), wherein the several stops (54) enclose the outer circumference of the second sensor (11). [7] Weighing device according to claim 4, characterized by , that in one or two corner positions of the support plate (5) the first recess (51) is provided in its width direction, while in another corner position of the support plate (5) the second recess (52) is provided. [8] Weighing device according to claim 4, characterized by , that the surface shell (1) is divided in the longitudinal direction into a display area (17) and a weighing area (18), wherein the display area (17) is located on a left side of the surface shell (1), while the weighing area (18) is located on a right side of the surface shell (1); that the weighing device further comprises a battery (9), wherein the battery (9) is arranged on the side of the support plate (5) facing away from the surface shell (1); and that in the direction of gravity the support plate (5) is located below the display area (17) and the weighing area (18), the flat plate (6) is positioned below the display area (17) and the battery (9) is located below the weighing area (18). [9] Weighing device according to claim 1, characterized by , that the flat plate (6) consists of insulating material. [10] Weighing device according to any one of claims 4 to 9, characterized by, that the weighing device further comprises a lower shell (14) and support feet (13), wherein the lower shell (14) and the surface shell (1) are interlocked to form a receiving space, wherein the support feet (13) are arranged to be guided through the lower shell (14), and the first sensor (10) and the second sensor (11) are located in the receiving space and their respective strain gauges (12) are mounted on different support feet (13).

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