Weighing device

Abstract

The utility model discloses a kind of weighing devices, comprising: bottom plate;Carrying platform is set above bottom plate;Weight sensor can be set between bottom plate and carrying platform, and the first end of weight sensor is fixedly installed with bottom plate;Lever can be set between weight sensor and carrying platform, and the first end of lever is rotatably connected with carrying platform, the second end of lever is rotatably connected with the second end of weight sensor, the third end of lever is between the first end of lever and the second end of lever, and the third end of lever is rotatably connected with bottom plate;Gasket can be set between carrying platform and lever first end and / or between lever third end and bottom plate.The utility model can reduce the situation of angle difference, reduce the situation of mechanical zero point deviation of weight sensor, improve the weighing reliability and accuracy of weighing device.

Description

Technical Field

[0001] This utility model belongs to the technical field of weighing equipment, and specifically relates to a weighing device. Background Technology

[0002] Existing weighing devices suffer from structural defects that significantly affect measurement accuracy in practical applications. Specifically, their support platform is prone to levelness deviation after installation or long-term use (i.e., the platform plane deviates from the ideal horizontal reference plane). This non-level state causes the load applied to the support platform to be unable to be evenly transmitted to the weight sensor below along the preset ideal path, resulting in angular difference problems. This angular difference phenomenon, directly caused by the non-levelness of the support platform, significantly reduces the weighing accuracy and reliability of the weighing device.

[0003] Furthermore, because the weight sensors in existing weighing devices are located below the platform, vibrations occur when the object to be measured is placed directly on the platform. These vibrations are transmitted directly to the weight sensors through the platform, causing high-frequency fluctuations or low-frequency oscillations in the sensor's output signal. This results in the displayed value on the weighing device's screen constantly fluctuating and failing to stabilize, making it difficult to obtain a stable and representative weight value. Long-term exposure to vibration can also cause the weight sensors' mechanical zero point to shift, requiring frequent calibration.

[0004] Therefore, it is necessary to provide a weighing device to address the aforementioned technical problems.

[0005] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0006] The purpose of this invention is to provide a weighing device that can reduce the occurrence of angular differences, reduce the mechanical zero-point offset of the weight sensor, and improve the weighing reliability and accuracy of the weighing device.

[0007] To achieve the above objectives, the technical solution provided by a specific embodiment of this utility model is as follows:

[0008] A weighing device, the weighing device comprising:

[0009] Base plate;

[0010] A support platform is disposed above the base plate;

[0011] A weight sensor is disposed between the base plate and the support platform, with the first end of the weight sensor fixedly installed to the base plate;

[0012] A lever is disposed between the weight sensor and the support platform. The first end of the lever is rotatably connected to the support platform, the second end of the lever is rotatably connected to the second end of the weight sensor, and the third end of the lever is located between the first end and the second end of the lever and is rotatably connected to the base plate.

[0013] A gasket is disposed between the support platform and the first end of the lever and / or between the third end of the lever and the base plate.

[0014] In one or more embodiments of the present invention, the weighing device further includes a connecting structure, the first end of the lever is rotatably connected to the support platform through the connecting structure, and the gasket is installed between the support platform and the connecting structure.

[0015] In one or more embodiments of the present invention, the connecting structure includes an upper support inserted into the support platform and a first connecting member rotatably connected to the upper support. The first connecting member is rotatably connected to the first end of the lever, and the gasket is disposed between the support platform and the upper support.

[0016] In one or more embodiments of this utility model, the support platform and / or the upper support are provided with a first guide limiting groove that cooperates with the gasket.

[0017] In one or more embodiments of the present invention, the weighing device further includes a third connecting member fixedly installed on the base plate, the third connecting member being rotatably connected to the third end of the lever, and the gasket being installed between the third connecting member and the base plate.

[0018] In one or more embodiments of this utility model, the base plate and / or the third connector are provided with a second guide limiting groove that cooperates with the gasket.

[0019] In one or more embodiments of the present invention, the base plate includes a plate body and a support seat fixedly installed on the plate body, the third connector is fixedly installed in the support seat, the gasket is installed between the third connector and the support seat, and the second guide limiting groove is disposed on the support seat and / or the third connector.

[0020] In one or more embodiments of the present invention, the weighing device further includes a second connecting member rotatably connected to the second end of the lever, and the second connecting member is rotatably connected to the second end of the weight sensor.

[0021] In one or more embodiments of the present invention, the weighing device further includes an installation structure fixedly installed with the base plate. The installation structure is disposed above the weight sensor, and the first end of the weight sensor is indirectly fixedly installed with the base plate through the installation structure.

[0022] In one or more embodiments of the present invention, the distance between the first end and the third end of the lever is less than the distance between the second end and the third end of the lever.

[0023] In one or more embodiments of the present invention, the weighing device further includes a support member, which is fixedly installed on the base plate and abuts against the second end of the lever.

[0024] Compared with the prior art, the weighing device of this utility model has the following advantages:

[0025] This invention provides a weighing device. The height of the second end of the lever can be adjusted using shims, ensuring that the weight sensors are on the same horizontal plane. This guarantees that the initial preload of the weight sensors is the same, thereby reducing angular differences. Simultaneously, by fixing the weight sensors to the base plate, vibrations from the support platform are prevented from being directly transmitted to the weight sensors, reducing mechanical zero-point offset and facilitating the measurement of object weight while reducing calibration frequency. This invention improves the weighing reliability and accuracy of the weighing device. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is an exploded structural diagram of the weighing device in one embodiment of the present invention;

[0028] Figure 2 This is a top view of the weighing device in one embodiment of the present invention;

[0029] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure at point AA;

[0030] Figure 4 This is a partial structural schematic diagram of the weighing device in one embodiment of the present invention;

[0031] Figure 5 for Figure 4 Enlarged view of the local structure at point A in the middle.

[0032] Explanation of key figure labels:

[0033] 1-Base plate; 11-Plate body; 12-Support base;

[0034] 2-Supporting platform; 21-Platform body; 22-Mounting column; 221-Through hole;

[0035] 301-First guide limiting groove; 302-Second guide limiting groove; 31-Lever; 32-Weight sensor; 33-Connecting structure; 331-Upper support; 332-First connector; 34-Second connector; 35-Third connector; 36-Support member; 37-Mounting structure; 371-Support plate; 372-Side plate;

[0036] 4-Gasket. Detailed Implementation

[0037] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0038] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0039] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0040] The technical solution of this utility model will now be described with reference to the accompanying drawings.

[0041] Reference Figures 1-4As shown, the weighing device in this application includes a base plate 1, a support platform 2, a weight sensor 32, a lever 31, and a pad 4. The support platform 2 is positioned above the base plate 1. The weight sensor 32 can be positioned between the base plate 1 and the support platform 2, with its first end fixedly mounted to the base plate 1. The lever 31 can be positioned between the weight sensor 32 and the support platform 2, with its first end rotatably connected to the support platform 2, its second end rotatably connected to the second end of the weight sensor 32, and its third end located between the first and second ends, rotatably connected to the base plate 1. The pad 4 can be positioned between the support platform 2 and the first end of the lever 31, and / or between the third end of the lever 31 and the base plate 1. The weight sensor 32 is positioned above the lever 31, and its second end is mounted on the second end of the lever 31. If multiple levers 31 are provided and the second ends of the levers 31 used to support the weight sensors 32 are not on the same horizontal plane, or if the heights of the levers 31 themselves differ, the bearing platform 2 will be tilted when unloaded, or the initial preload of each weight sensor 32 will be different when loaded, ultimately resulting in an angular difference, which will seriously affect the accuracy and reliability of weighing. For example, refer to Figures 1-3 As shown, the weighing device in this embodiment has four sets of levers 31 and weight sensors 32 respectively set on the four corners of the base. The second end of the four levers 31 supports the four weight sensors 32. Shims 4 are provided between the support platform 2 and the first end of the lever 31 in each set, and between the third end of the lever 31 and the base plate 1 in each set. By setting the shims 4, the height of the second end of the lever 31 can be adjusted, so that the second ends of each lever 31 supporting the weight sensor 32 are on the same horizontal plane, ensuring that the weight sensors 32 are at the same height, thus making the initial preload of the weight sensors 32 the same and reducing the occurrence of angular differences. At the same time, by fixing the weight sensors 32 to the base plate 1, the vibration of the support platform 2 is prevented from being directly transmitted to the weight sensors 32, reducing the occurrence of mechanical zero-point offset of the weight sensors 32, facilitating the measurement of object weight, and reducing the calibration frequency. This embodiment can improve the reliability and accuracy of the weighing device.

[0042] Of course, this application is not limited to this. In other embodiments, the base 1 is provided with multiple (at least three) mounting points, at least one of which is not collinear with the others, such that the at least three non-collinear mounting points can define a plane. At least one mounting point may be equipped with a lever 31 and a weight sensor, while the other mounting points may be directly equipped with a weight sensor 32. The lever 31 and weight sensor 32 may be in one, two, three, five, or six groups, etc. The shim 4 can be placed only between the support platform 2 and the first end of the lever 31 and the third end of the lever 31 and the base plate 1 in one set of levers 31 and weight sensors 32, or the shim 4 can be placed only between the support platform 2 and the first end of the lever 31 in one set of levers 31 and weight sensors 32, or the shim 4 can be placed only between the third end of the lever 31 and the base plate 1 in one set of levers 31 and weight sensors 32, or the shim 4 can be placed only between the support platform 2 and the first end of the lever 31 and the third end of the lever 31 and the base plate 1 in two sets of levers 31 and weight sensors 32, etc.

[0043] All of the above technical solutions fall within the protection scope of this application. As long as at least one installation location is provided with the weight sensor 32, lever 31 and shim 4 of this embodiment, and as long as the height of the second end of lever 31 can be adjusted by at least one shim 4 to ensure that each weight sensor 32 is on the same horizontal plane, the occurrence of angular difference can be reduced. This is something that those skilled in the art can understand and accept.

[0044] Specifically, in order to rotatably connect the first end of lever 31 to the support platform 2, refer to Figure 3 , Figure 4 As shown, the weighing device in this embodiment also includes a connecting structure 33. The first end of the lever 31 is rotatably connected to the support platform 2 through the connecting structure 33, and the shim 4 is installed between the support platform 2 and the connecting structure 33. It should be noted that, in order to avoid affecting the integrity of the upper surface of the support platform 2, and to facilitate the fixed installation of the connecting structure 33 onto the support platform 2, and to facilitate the adjustment of the shim 4, the support platform 2 in this embodiment includes a platform body 21 and a mounting post 22 located on the lower surface of the platform body 21. The mounting post 22 has a through hole 221 in the horizontal direction. The upper end of the connecting structure 33 extends into the through hole 221, and the upper end of the connecting structure 33 is fixedly installed in the mounting post 22 by a nut or other structure. The shim 4 is disposed between the mounting post 22 and the connecting structure 33 of the support platform 2.

[0045] Optionally, refer to Figures 3-5As shown, the connecting structure 33 in this embodiment includes an upper support 331 inserted into the support platform 2 and a first connecting member 332 rotatably connected to the upper support 331. The first connecting member 332 is rotatably connected to the first end of the lever 31, and a gasket 4 is disposed between the support platform 2 and the upper support 331. Of course, this application is not limited to this. In other embodiments, the connecting structure 33 can be an integral structure to facilitate processing and reduce processing steps. When an object to be weighed is placed on the support platform 2, the support platform 2 transmits gravity to the first end of the lever 31 through the first connecting structure 33. The first end of the lever 31 presses downward, the third end of the lever 31 acts as a fulcrum, the second end of the lever 31 tilts upward, and the lever 31 rotates along the third end of the lever 31. In this application, the connecting structure 33 is configured as an upper support 331 and a first connecting member 332. The two ends of the first connecting member 332 are rotatably connected to the upper support 331 and the first end of the lever 31, respectively. When the lever 31 rotates along the third end of the lever 31, it has a high degree of freedom of movement and is more flexible. It can absorb dynamic loads and reduce stress concentration. The first connecting member 332 can rotate relative to the lever 332, thereby reducing the peak stress at both ends of the first connecting member 332 and improving fatigue life.

[0046] Preferably, to facilitate installation and prevent the gasket 4 from detaching from the support platform 2 and the lever 31 during installation or use, refer to... Figure 3 , Figure 4 As shown, the support platform 2 and / or upper support 331 in this application are provided with a first guide limiting groove 301 that cooperates with the gasket 4. Exemplarily, the support platform 2 in this embodiment is provided with a first guide limiting groove 301. Since the support platform 2 in this application includes a platform body 21 and a mounting column 22, the first guide limiting groove 301 is located at the lower end of the mounting column 22. Of course, this application is not limited to this; in other embodiments, the first guide limiting groove 301 can be located on the upper support 331, with the first guide limiting groove 301 opposite to the lower end of the mounting column 22, so as to facilitate the installation of the gasket 4 between the lower end of the mounting column 22 and the upper support 331; or, in other embodiments, the mounting column 22 is provided with a first guide limiting sub-groove, and the upper support 331 is provided with a second guide limiting sub-groove. When the upper support 331 is fixedly installed in the mounting column 22, the first guide limiting sub-groove and the second guide limiting sub-groove are aligned to form a larger first guide limiting groove 301.

[0047] To facilitate auxiliary support for lever 31 during installation and prevent lever 31 from tilting, refer to... Figure 3 As shown, the weighing device in this embodiment also includes a support member 36, which is fixedly installed on the base plate 1 and abuts against the second end of the lever 31.

[0048] Specifically, in order to rotatably connect the third end of lever 31 to base plate 1, refer to Figures 3-5As shown, the weighing device in this embodiment also includes a third connecting member 35 fixedly installed on the base plate 1. The third connecting member 35 is rotatably connected to the third end of the lever 31, and a washer 4 is installed between the third connecting member 35 and the base plate 1. According to this design, the lever 31 can be rotated along the third end of the lever 31, thereby ensuring that when the gravity on the support platform 2 is transmitted from the first end of the lever 31 to the second end of the lever 31, no component force is generated at the third end of the lever 31.

[0049] To facilitate installation and prevent the gasket 4 from detaching from the lever 31 and the base plate 1 during installation or use, refer to... Figure 3 , Figure 4 As shown, the base plate 1 and / or the third connecting member 35 in this application are provided with a second guide limiting groove 302 that cooperates with the gasket 4. Exemplarily, the base plate 1 in this embodiment is provided with a second guide limiting groove 302. Of course, this application is not limited to this. In other embodiments, the second guide limiting groove 302 may be provided on the third connecting member 35; or, in other embodiments, the base plate 1 is provided with a third guide limiting sub-groove, and the third connecting member 35 is provided with a fourth guide limiting sub-groove. When the third connecting member 35 is fixedly installed in the base plate 1, the third guide limiting sub-groove and the fourth guide limiting sub-groove are aligned to form a larger second guide limiting groove 302.

[0050] Preferably, refer to Figure 3 , Figure 4 As shown, the base plate 1 in this application includes a plate body 11 and a support base 12 fixedly installed on the plate body 11. A third connector 35 is fixedly installed in the support base 12, a gasket 4 is installed between the third connector 35 and the support base 12, and a second guide limiting groove 302 is provided on the support base 12 and / or the third connector 35. For example, the second guide limiting groove 302 is provided at the upper end of the support base 12. Of course, this application is not limited to this. In other embodiments, the second guide limiting groove 302 can be provided on the third connector 35. The second guide limiting groove 302 is disposed opposite to the upper end of the support base 12 so as to install the gasket 4 between the upper end of the support base 12 and the third connector 35. Alternatively, in other embodiments, the support base 12 is provided with a third guide limiting sub-groove, and the third connector 35 is provided with a fourth guide limiting sub-groove. When the third connector 35 is fixedly installed in the support base 12, the third guide limiting sub-groove and the fourth guide limiting sub-groove are aligned to form a larger second guide limiting groove 302.

[0051] Specifically, in order to rotatably connect the second end of lever 31 to the second end of weight sensor 32, refer to Figures 3-5As shown, the weighing device in this embodiment also includes a second connecting member 34 rotatably connected to the second end of the lever 31, and the second connecting member 34 is rotatably connected to the second end of the weight sensor 32. When an object to be weighed is placed on the support platform 2, the support platform 2 transmits gravity to the first end of the lever 31 through the first connecting structure 33. The first end of the lever 31 presses downward, the third end of the lever 31 acts as a fulcrum, and the second end of the lever 31 tilts upward. The lever 31 rotates along the third end of the lever 31. Through the design of the second connecting member 34, the second end of the weight sensor 32 is subjected to the pressure transmitted by the second connecting member 34, thereby measuring the weight of the corresponding object to be weighed. It should be noted that in this application, the gravity on the support platform 2 is converted into a force in the opposite direction through the first end and the third end of the lever 31 and transmitted to the second end of the lever 31. Since the lever arm L1 from the first end to the third end of the lever 31 is much smaller than the lever arm L2 from the second end to the third end of the lever 31, the converted force becomes smaller through the scaling of the lever 31. Thus, the force on the weight sensor 32 is much smaller than the force transmitted by the support platform 2, thereby significantly reducing the impact force on the weight sensor 32 and protecting it. This reduces the peak stress on the weight sensor 32 during impact, improves its fatigue life, and enhances the measurement stability of the weighing device. For example, in this embodiment, the two ends of the second connector 34 are rotatably connected to the second end of the lever 31 and the second end of the weight sensor 32, respectively. This design ensures that when the gravity on the support platform 2 is transmitted from the first end of the lever 31 to the second end, no component force is generated at the second end of the lever 31.

[0052] Reference Figure 3 , Figure 4 As shown, the weighing device in this embodiment also includes a mounting structure 37 fixedly installed to the base plate 1. The mounting structure 37 is disposed above the weight sensor 32, and the second end of the weight sensor 32 is fixedly installed to the mounting structure 37. Compared with the scheme of directly fixing the first end of the weight sensor 32 to the lower surface of the support platform 2, this embodiment indirectly fixes the first end of the weight sensor 32 to the base plate 1 through the mounting structure 37, which can avoid the vibration of the support platform 2 from directly affecting the weight sensor 32, avoid weighing errors, and improve the accuracy of the weighing device.

[0053] Specifically, the mounting structure 37 includes a support plate 371 disposed between the support platform 2 and the base plate 1, and two side plates 372 disposed on both sides of the support plate 371. The support plate 371, the two side plates 372, and the base plate together form a receiving space for accommodating the lever 31 and the weight sensor 32. The first end of the weight sensor 32 is fixedly mounted on the support plate 371 to achieve the effect of indirect fixed mounting with the base plate 1.

[0054] Of course, in other embodiments, the weight sensor 32 can also be directly fixed to the base plate 1.

[0055] The following describes the specific application scenarios of the weighing device in the embodiments of this application.

[0056] Application Scenario 1

[0057] Typically, the weighing range of the weight sensor 32 is inversely proportional to the number of calibration graduations. For example, for a weight sensor 32 with a maximum weighing range of 1 ton, the number of calibration graduations is 6000e; if the maximum weighing range of the weight sensor 32 is 5000kg, the number of calibration graduations can reach 10000e. Therefore, it is impossible to simultaneously meet the dual requirements of large weighing range and high precision.

[0058] Weighing devices typically use four weight sensors 32. The maximum capacity accuracy of existing weight sensors 32 is C10. If four 4.4-ton C10 weight sensors 32 are selected, without lever 31 for scaling, the maximum rated load of the entire weighing device is 10 tons, and the verification division number is 10000e. This makes it impossible to guarantee an increase in rated load (e.g., 20 tons or higher) at the same verification division number, thus limiting its application range. To solve the above problem, refer to... Figures 1 to 5 In the weighing device shown, the distance between the first end and the third end of lever 31 is less than the distance between the second end and the third end of lever 31. When an object to be weighed is placed on the support platform 2, the support platform 2 transmits gravity to the first end of lever 31 through the first connecting structure 33. The first end of lever 31 presses downward, the third end of lever 31 acts as a fulcrum, the second end of lever 31 tilts upward, and lever 31 rotates along the third end. Through the design of the second connecting member 34, the second end of the weight sensor 32 is subjected to the pressure transmitted by the second connecting member 34, thereby measuring the weight of the corresponding object to be weighed.

[0059] In this embodiment, the distance between the first end and the third end of lever 31 is L1, and the distance between the second end and the third end of lever 31 is L2. The force acting on the first end of lever 31 is F1, and the force acting on the second end of lever 31 (the force acting on the weight sensor 32) is F2. Therefore, according to the principle of torque balance, F1L1 = F2L2. The lever ratio R = F2 / F1 = L1 / L2, which is the scaling factor of lever 31. In this embodiment, referring to... Figure 5As shown, since L1 is less than L2, the scaling factor R of lever 31 is less than 1. Therefore, when the support platform 2 bears a load, the pressure on the weight sensor 32 will decrease synchronously according to the change of the lever ratio, thereby achieving the effect of expanding the weighing range of the weighing device. At the same time, by scaling the lever, the impact force on the end of the weight sensor 32 can be reduced, which plays a good protective role for the weight sensor 32.

[0060] When using the same weight sensor 32, different lever ratios can be designed to achieve weighing device designs with different capacities, and the compatibility of these designs can be verified to meet metrological accuracy requirements. The capacity of the weighing device can be expanded by scaling lever 31, thus increasing the weighing range. For example, in this embodiment, the weight sensor 32 has a capacity of 4.4t-C10, and four weight sensors 32 are used. Different lever ratios can be set to achieve weighing systems with different ranges.

[0061] Application Scenario 2:

[0062] When a full-scale weight cannot be provided at the user's site, but the weighing system's metrological performance from zero to full scale must meet the error requirements stipulated by metrological regulations, the user can use the weighing device as described in Example 1 to simultaneously meet the requirements of a full scale of 6000e to 10000e, while also reducing the difficulty of on-site calibration and improving the user experience.

[0063] Application Scenario 3:

[0064] To address the issue of simultaneously meeting the dual requirements of large weighing range and high precision, four weight sensors 32 with different weighing ranges and precisions can be used. By adjusting the lever ratio, the weighing range of the weighing device can also be expanded.

[0065] Application Scenario 4:

[0066] After a period of time, the user may encounter a problem where one of the four weight sensors 32 malfunctions. In such cases, a weight sensor 32 with a different range can be used temporarily. By setting different lever ratios and adjusting shims, angle difference can be avoided, thereby enabling the weighing device to continue working.

[0067] It should be noted that the structures of the weight sensor 32 and other components not described in detail in this application, as well as the working principle of the weighing device, can all adopt existing solutions in the prior art, which can be understood and accepted by those skilled in the art, and therefore will not be elaborated further.

[0068] In the description of the embodiments of this utility model, it should be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used to facilitate the description of this utility model and simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0069] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set", "install", "rotatable connection", and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct rotatable connection or an indirect rotatable connection through an intermediate medium; and they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0070] In the description of the embodiments of this utility model, it should also be noted that the terms "first" and "second" used herein do not specifically refer to any order or sequence, nor are they intended to limit this case; they are merely used to distinguish components or operations described using the same technical terms.

[0071] It should be noted that, for the purpose of more clearly describing the structure, the term "distal end" is defined herein as the end furthest from the operator during operation, and "proximal end" as the end closest to the operator during operation. Unless otherwise defined, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0072] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0073] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A weighing device, characterized in that, The weighing device includes: Base plate; A support platform is disposed above the base plate; A weight sensor is disposed between the base plate and the support platform, with the first end of the weight sensor fixedly installed to the base plate; A lever is disposed between the weight sensor and the support platform. The first end of the lever is rotatably connected to the support platform, the second end of the lever is rotatably connected to the second end of the weight sensor, and the third end of the lever is located between the first end and the second end of the lever and is rotatably connected to the base plate. A gasket is disposed between the support platform and the first end of the lever and / or between the third end of the lever and the base plate.

2. The weighing device according to claim 1, characterized in that, The weighing device further includes a connecting structure, the first end of the lever is rotatably connected to the support platform through the connecting structure, and the gasket is installed between the support platform and the connecting structure.

3. The weighing device according to claim 2, characterized in that, The connection structure includes an upper support inserted into the support platform and a first connector rotatably connected to the upper support. The first connector is rotatably connected to the first end of the lever, and the gasket is disposed between the support platform and the upper support.

4. The weighing device according to claim 3, characterized in that, The support platform and / or the upper support are provided with a first guide limiting groove that cooperates with the gasket.

5. The weighing device according to claim 1, characterized in that, The weighing device further includes a third connector fixedly installed on the base plate, the third connector being rotatably connected to the third end of the lever, and the shim being installed between the third connector and the base plate.

6. The weighing device according to claim 5, characterized in that, The base plate and / or the third connector are provided with a second guide and limiting groove that mates with the gasket.

7. The weighing device according to claim 6, characterized in that, The base plate includes a plate body and a support base fixedly installed on the plate body. The third connector is fixedly installed in the support base. The gasket is installed between the third connector and the support base. The second guide limiting groove is provided on the support base and / or the third connector.

8. The weighing device according to claim 1, characterized in that, The weighing device further includes a second connector that is rotatably connected to the second end of the lever, and the second connector is rotatably connected to the second end of the weight sensor.

9. The weighing device according to claim 1, characterized in that, The weighing device also includes a mounting structure that is fixedly installed on the base plate. The mounting structure is located above the weight sensor, and the first end of the weight sensor is indirectly fixedly installed on the base plate through the mounting structure.

10. The weighing device according to claim 1, characterized in that, The distance between the first end and the third end of the lever is less than the distance between the second end and the third end of the lever.

11. The weighing device according to claim 1, characterized in that, The weighing device also includes a support member, which is fixedly installed on the base plate and abuts against the second end of the lever.

Images