weighing base

Abstract

The application relates to the weighing technology field and provides a weighing base. The weighing base comprises a base, a load-bearing piece, a transmission assembly and a communication module. The input end of the transmission assembly is arranged on the load-bearing piece. The output end of the transmission assembly is connected with a resistance value regulator of a sliding rheostat. The output end is configured to move synchronously when the input end moves, to drive the resistance value regulator to move and adjust the resistance value of the sliding rheostat. The communication module is configured to acquire the resistance value change of the sliding rheostat and transmit the resistance value change to a terminal, so that the terminal determines the weight borne by the load-bearing piece according to the resistance value change. The weighing base provided by the application embodiment does not have the problem that the zero point drifts due to the long-term pressure on the gravity sensor during the long-term bearing of the liquefied gas tank, that is, the detection accuracy of the weighing base provided by the application embodiment is better during the long-term bearing and use.

Description

Technical Field

[0001] This application relates to the field of weighing technology, and in particular to a weighing base. Background Technology

[0002] A liquefied petroleum gas (LPG) tank is a storage tank used to store liquefied petroleum gas (LPG). When the LPG is inside, the pressure is very high. It is a special equipment and has the advantages of strong airtightness, safety and reliability, no pollution, easy transportation and convenient movement. Therefore, it is widely used in various fields.

[0003] When using liquefied petroleum gas (LPG) cylinders in homes, it's necessary to monitor their weight in real time to ensure timely replacement with a new, fully refilled cylinder when the LPG is low. The primary technology for determining the remaining LPG level is by measuring the weight. However, placing the cylinder directly on a gravity sensor for extended periods can cause zero-point drift, affecting the accuracy of LPG cylinder monitoring. Utility Model Content

[0004] The purpose of this application is to provide a weighing base that addresses the problem in related technologies where the accuracy of gravity sensors is affected when heavy objects are placed on the weighing device for a long period of time.

[0005] To achieve the above objectives, the technical solution adopted in the embodiments of this application is as follows: This application provides a weighing base, including a base, a load-bearing component, a transmission assembly, and a communication module. An elastic support and a sliding rheostat are mounted on the base. The load-bearing component is used to place a liquefied gas tank and is mounted on the elastic support. The transmission assembly is mounted on the base and has an input end and an output end. The input end is mounted on the load-bearing component, and the output end is connected to the resistance adjuster of the sliding rheostat. The output end is configured to move synchronously with the input end, driving the resistance adjuster to move and adjusting the resistance value of the sliding rheostat. The communication module is electrically connected to the sliding rheostat and is configured to acquire the resistance change of the sliding rheostat and transmit it to a terminal, so that the terminal can determine the weight borne by the load-bearing component based on the resistance change.

[0006] The beneficial effects of this application embodiment are as follows: The weighing base provided in this application embodiment is used for long-term placement of the object to be weighed. Simultaneously, the load-bearing component, under the force of the object to be weighed, compresses the elastic support, causing the load-bearing component to displace relative to the base. This causes the input end of the transmission component to move under the action of the load-bearing component, thereby causing the output end of the transmission component to move synchronously and drive the resistance regulator to move and adjust the resistance value of the sliding rheostat. Thus, the communication module can acquire the resistance change of the sliding rheostat and transmit it to the terminal, allowing the terminal to determine the weight carried by the load-bearing component based on the resistance change. The weighing base provided in this application embodiment can monitor the weight change of the load-bearing object. Furthermore, during long-term use, the weighing base does not experience the problem of zero-point drift caused by long-term pressure on the gravity sensor. Therefore, the weighing base provided in this application embodiment has superior detection accuracy during long-term use.

[0007] In some embodiments, the input stroke of the input terminal is m, and the output stroke of the output terminal corresponding to the input stroke m is n; where m < n.

[0008] In some embodiments, the transmission assembly includes an input rack, a multi-stage gear set, and an output rack; the input rack is movably mounted on the base along the direction of gravity, with the end of the input rack facing the load-bearing member being the input end, which is connected to the load-bearing member; the output rack forms an output end, which is connected to a resistance regulator; the input rack is meshed with the input gear of the multi-stage gear set, and the output rack is meshed with the output gear of the multi-stage gear set.

[0009] In some embodiments, the multi-stage gear set includes a first rotating shaft, an input gear and a first intermediate gear disposed on the first rotating shaft, a second rotating shaft, an output gear and a second intermediate gear disposed at intervals on the second rotating shaft, the first intermediate gear meshing with the second intermediate gear, an input rack meshing with the input gear, and an output rack meshing with the output gear; wherein, the pitch circle diameter of the first intermediate gear is larger than the pitch circle diameter of the input gear, the pitch circle diameter of the output gear is larger than the pitch circle diameter of the second intermediate gear, and the pitch circle diameter of the first intermediate gear is larger than the pitch circle diameter of the second intermediate gear.

[0010] In some embodiments, the multi-stage gear set further includes a third rotating shaft and a third intermediate gear and a fourth intermediate gear disposed on the third rotating shaft. The third intermediate gear meshes with the first intermediate gear, and the fourth intermediate gear meshes with the second intermediate gear. The pitch circle diameter of the fourth intermediate gear is larger than that of the third intermediate gear, the pitch circle diameter of the first intermediate gear is larger than that of the third intermediate gear, and the pitch circle diameter of the fourth intermediate gear is larger than that of the second intermediate gear.

[0011] In some embodiments, a groove is provided on the base along the direction of gravity, and the input rack is slidably inserted into the groove; the output rack is configured to slide in the horizontal direction, and the sliding direction of the output rack is parallel to the adjustment direction of the resistance regulator.

[0012] In some embodiments, the transmission assembly further includes a connector that connects both the output terminal and the resistance regulator.

[0013] In some embodiments, the transmission assembly includes a transmission rod hinged to a base, with the two opposite ends of the transmission rod at the hinge forming an input end and an output end, respectively. The input end is connected to a load-bearing component, and the output end is connected to a resistance regulator. The length of the transmission rod between the input end and the hinge is less than the length of the transmission rod between the output end and the hinge.

[0014] In some embodiments, there are multiple elastic supports, which are equidistantly arranged around the center of the load-bearing member.

[0015] In some embodiments, a plurality of limiting grooves are provided on the base along the direction of gravity, and at least a portion of the elastic support is accommodated in the corresponding limiting groove. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the weighing base provided in the embodiments of this application; Figure 2 This is a schematic diagram of the internal structure of the base provided in an embodiment of this application; Figure 3 A schematic diagram of the connection structure of the multi-stage gear set, input rack, and output rack provided in the embodiments of this application; Figure 4 A schematic diagram of the connection structure of the multi-stage gear set, input rack, and output rack provided in an embodiment of this application; Figure 5 This is a schematic diagram of the structure of the transmission assembly provided in the embodiments of this application when a transmission rod is used.

[0018] The following are the labeling elements in the figure: 1000. Weighing base; 100. Base; 110. Slide groove; 120. Limiting groove; 200. Load-bearing components; 300. Transmission assembly; 301. Input end; 302. Output end; 310. Input rack; 320. Multi-stage gear set; 321. First rotating shaft; 322. Input gear; 323. First intermediate gear; 324. Second rotating shaft; 325. Output gear; 326. Second intermediate gear; 327. Third rotating shaft; 328. Third intermediate gear; 329. Fourth intermediate gear; 330. Output rack; 340. Connector; 350. Transmission rod; 400. Elastic support components; 500. Sliding rheostat; 510. Resistance adjuster; G, direction of gravity. Detailed Implementation

[0019] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0020] In the description of this application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0022] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0023] A liquefied petroleum gas (LPG) tank is a storage tank used to store LPG. It operates at high pressure when filled with LPG and is classified as special equipment. It boasts advantages such as high airtightness, safety, reliability, no pollution, ease of transport, and convenient mobility, making it widely used in various fields. In household use, it's necessary to monitor the weight of the LPG tank regularly to ensure timely replacement when the gas is low. The primary technology for determining the remaining LPG level is by measuring its weight. However, placing the tank directly on a gravity sensor for extended periods can cause zero-point drift, affecting the accuracy of LPG tank monitoring.

[0024] Based on the above considerations, in order to solve the problem that the detection accuracy of gravity sensors is easily affected when the weight to be weighed (such as liquefied gas tanks, industrial gas cylinders, etc.) is placed on the gravity sensor for long-term weight monitoring, a weighing base is designed. The weighing base is used for long-term placement of the weight to be weighed. At the same time, the load-bearing component, under the force of the weight to be weighed, compresses the elastic support, causing the load-bearing component to displace relative to the base. This causes the input end of the transmission component to move under the action of the load-bearing component, and then the output end of the transmission component moves synchronously, driving the resistance regulator to move and adjust the resistance value of the sliding rheostat. Thus, the communication module can obtain the resistance change of the sliding rheostat and transmit it to the terminal, so that the terminal can determine the weight carried by the load-bearing component based on the resistance change. The weighing base provided in this application embodiment can not only monitor the weight change of the load-bearing component, but also avoids the problem of zero-point drift caused by long-term pressure on the gravity sensor during long-term use. That is, the weighing base provided in this application embodiment has better detection accuracy during long-term use.

[0025] Below, for ease of understanding, we will take a liquefied gas tank as an example and provide a detailed description of the weighing base provided in this application based on specific embodiments.

[0026] Please refer to Figures 1 to 4This application provides a weighing base 1000, including a base 100, a load-bearing component 200, a transmission assembly 300, and a communication module (not shown in the figure). An elastic support 400 and a sliding rheostat 500 are disposed on the base 100. The load-bearing component 200 is used to place a liquefied gas tank and is disposed on the elastic support 400. The transmission assembly 300 is disposed on the base 100 and has an input terminal 301 and an output terminal 302. 1. A load-bearing component 200 is installed on the load-bearing component 200. The output terminal 302 is connected to the resistance regulator 510 of the sliding rheostat 500. The output terminal 302 is configured to move synchronously with the input terminal 301 and drive the resistance regulator 510 to move and adjust the resistance value of the sliding rheostat 500. The communication module is electrically connected to the sliding rheostat 500. The communication module is configured to acquire the resistance change of the sliding rheostat 500 and transmit it to the terminal so that the terminal can determine the weight borne by the load-bearing component 200 based on the resistance change.

[0027] The base 100 refers to the seat portion of the weighing base 1000, which is used to place on the ground to provide support. Optionally, the shape of the base 100 may be, but is not limited to, a circle, a rectangle, or other polygons.

[0028] The load-bearing component 200 refers to the part used to support the weight to be weighed, such as a liquefied gas tank; optionally, the load-bearing component 200 may be, but is not limited to, a plate structure, a support structure, a cover structure, a block structure, etc.

[0029] An elastic support member 400 is provided on the base 100, and a load-bearing member 200 is disposed on the elastic support member 400; the elastic support member 400 refers to an elastic structure used to support the load-bearing member 200 and having elastic restoring energy. Exemplarily, in some embodiments, the elastic support member 400 can be a support spring; the number of elastic support members 400 can be one or more.

[0030] One end of the elastic support 400 can abut against the base 100, or one end of the elastic support 400 can be connected to the base 100 by means of bonding, welding, snap-fitting, etc. Similarly, the other end of the elastic support 400 can abut against the load-bearing member 200, or the other end of the elastic support 400 can be connected to the load-bearing member 200 by means of bonding, welding, snap-fitting, etc.

[0031] The elastic support 400 is used to support the load-bearing member 200, so that the load-bearing member 200 can bear the liquefied gas tank and apply pressure to the elastic support 400, so that the elastic support 400 is compressed, thereby causing the load-bearing member 200 to be displaced relative to the base 100.

[0032] The base 100 is also equipped with a sliding rheostat 500. The sliding rheostat 500 is a component whose resistance value can be adjusted by sliding and adjusting the position of its resistance adjuster 510. The sliding rheostat 500 is mounted on the base 100; optionally, the sliding rheostat 500 can be assembled on the base 100 by means of fastener connection, locking connection, adhesive bonding, snap-fit, etc.

[0033] The transmission assembly 300 refers to the assembly used to transmit the amount of movement of the load-bearing component 200 relative to the base 100 to the mechanism that drives the sliding rheostat 500 to move. Exemplarily, the transmission assembly 300 includes, but is not limited to, a rack and pinion transmission assembly 300, a transmission link, a transmission lever, a transmission gear, etc.

[0034] The transmission assembly 300 has an input end 301 and an output end 302. The input end 301 refers to the end that acts on the load-bearing member 200, while the output end 302 refers to the other end used to connect the resistance adjuster 510 of the sliding rheostat 500. The input end 301 is disposed on the load-bearing member 200. Optionally, the input end 301 can be connected to the load-bearing member 200 by means of adhesion, snap-fit ​​connection, locking connection, or abutment. The output end 302 connects to the resistance adjuster. Optionally, the output end 302 can be directly connected to the resistance adjuster 510, or indirectly connected to the resistance adjuster 510 through a connecting structure such as a connecting rod or connecting plate. Thus, the transmission assembly 300 can convert the displacement of the load-bearing member 200 relative to the base 100 after carrying the liquefied gas tank into the displacement of the resistance adjuster 510 of the sliding rheostat 500, thereby changing the resistance value of the sliding rheostat 500 accordingly.

[0035] The displacement of the resistance regulator 510, which is converted into the sliding rheostat 500, can be a displacement along the horizontal direction or the direction of gravity, or it can be an angular displacement caused by rotation, to adapt to sliding rheostats with different adjustment methods.

[0036] Understandably, the aforementioned resistance adjuster 510 can be a resistance adjustment lever, resistance adjustment rotary lever, or other similar structures.

[0037] The communication module refers to the module used to acquire and transmit the resistance change of the sliding rheostat 500 to the terminal. Optionally, the communication module can be, but is not limited to, a 4G module, a 5G module, a Wi-Fi module, or other network module. The communication module enables the transmission of the resistance change of the sliding rheostat 500. It should be understood that 4G modules, 5G modules, Wi-Fi modules, and other network modules are common modules on the market; therefore, their working principles and specific structures are not described in detail in this application.

[0038] The communication module is electrically connected to the sliding rheostat 500, thus enabling the communication module to acquire the resistance value of the sliding rheostat 500 in real time and send it synchronously to the terminal. It is understood that the aforementioned terminal can be, but is not limited to, a control platform, a mobile phone, or a computer.

[0039] The communication module is configured to acquire and transmit the resistance change of the sliding rheostat 500 to the terminal, enabling the terminal to determine the weight carried by the load-bearing component 200 based on the resistance change. In application, a first correlation can be established between different resistance values ​​and the corresponding weight of the liquefied gas tank carried by the load-bearing component 200. This first correlation can be a mapping relationship, which can exist in the form of a first correlation table. The correlation table can be a look-up table (LUT), or it can exist in a form where the corresponding search result is output based on other input data, facilitating querying and retrieval. By establishing the correlation beforehand, when it is necessary to query and retrieve the weight of the liquefied gas tank carried by the load-bearing component 200, only the instantaneous resistance value sent by the communication module to the terminal needs to be used to query and retrieve the weight of the associated liquefied gas tank carried by the load-bearing component 200, thereby achieving the purpose of real-time monitoring of the liquefied gas tank's gravity.

[0040] The weighing base 1000 provided in this embodiment is used for long-term placement of liquefied gas cylinders. Simultaneously, the load-bearing component 200, under the force of the liquefied gas cylinder, compresses the elastic support component 400, causing displacement of the load-bearing component 200 relative to the base 100. This causes the input end 301 of the transmission component 300 to move under the action of the load-bearing component 200, thereby causing the output end 302 of the transmission component 300 to move synchronously, driving the resistance regulator 510 to move and adjust the resistance value of the sliding rheostat 500. Thus, the communication module can acquire the resistance change of the sliding rheostat 500 and transmit it to the terminal, allowing the terminal to determine the weight borne by the load-bearing component 200 based on the resistance change. The weighing base 1000 provided in this embodiment can monitor the weight change of the liquefied gas cylinder it carries. Furthermore, during long-term use of the liquefied gas cylinder, the weighing base 1000 does not experience the problem of zero-point drift caused by long-term pressure on the gravity sensor. Therefore, the weighing base 1000 provided in this embodiment has superior detection accuracy during long-term use.

[0041] Please refer to Figures 1 to 4 In some embodiments, the input stroke of input terminal 301 is m, and the output stroke of output terminal 302 corresponding to input stroke m is n; where m < n.

[0042] Understandably, the input stroke m refers to the displacement formed by the load-bearing component 200 compressing the elastic support component 400 under the gravity of the liquefied gas tank; the output stroke n refers to the displacement formed synchronously by the input end 301 when moving the input stroke m.

[0043] In this embodiment, the input stroke m of the input terminal 301 is set to be less than the output stroke n of the corresponding input stroke m of the output terminal 302. Thus, the displacement of the resistance regulator 510 driven by the output terminal 302 is greater than the displacement of the input terminal 301 driven by the load-bearing component 200. This amplification effect is achieved, and the displacement formed by the load-bearing component 200 carrying the liquefied gas tank and compressing the elastic support 400 is amplified and reflected in the resistance change of the sliding rheostat 500. This allows the communication module to obtain the corresponding resistance change and send it to the terminal, thereby effectively improving the accuracy of the terminal in determining the weight carried by the load-bearing component 200 based on the resistance change. This, in turn, improves the accuracy of the weighing base 1000 in monitoring the weight of the liquefied gas tank.

[0044] Please refer to Figures 1 to 4 In some embodiments, the transmission assembly 300 includes an input rack 310, a multi-stage gear set 320, and an output rack 330. Along the direction of gravity G, the input rack 310 is movably mounted on the base 100. The end of the input rack 310 facing the load-bearing member 200 is the input end 301, which is connected to the load-bearing member 200. An output end 302 is formed on the output rack 330, which is connected to the resistance regulator 510. The input rack 310 is meshed with the input gear of the multi-stage gear set 320, and the output rack 330 is meshed with the output gear of the multi-stage gear set 320.

[0045] The end of the input rack 310 facing the load-bearing member 200 is the input end 301. The input rack 310 is movably mounted on the base 100 along the direction of gravity G. Thus, when the load-bearing member 200 is displaced relative to the base 100, the load-bearing member 200 can act on the input end 301 of the input rack 310 and drive the input rack 310 to move synchronously along the direction of gravity G.

[0046] The input end 301 is connected to the load-bearing component 200. Optionally, the input end 301 can be connected to the load-bearing component 200 by means of screwing, locking, bonding, snapping, or abutting.

[0047] The multi-stage gear set 320 refers to a gear transmission system composed of multiple different gears cascaded together. The amplification effect is achieved through the combination of multiple gears. That is, the rotation input by the input rack 310 is smaller, while the rotation output from the multi-stage gear set 320 to the output rack 330 is larger, so that the movement of the output rack 330 is greater than the movement of the input rack 310.

[0048] The output terminal 302 is connected to the resistance regulator 510; optionally, the output terminal 302 of the output rack 330 can be connected to the resistance regulator 510 through intermediate structures such as connecting rods and connecting plates.

[0049] With this configuration, the displacement of the load-bearing component 200 can be input to the multi-stage gear set 320 through the input rack 310, and then amplified by the multi-stage gear set 320 and output to the output rack 330, so that the output rack 330 can drive the resistance regulator 510 to generate a larger movement.

[0050] Please refer to Figures 1 to 4 In some embodiments, the multi-stage gear set 320 includes a first rotating shaft 321, an input gear 322 and a first intermediate gear 323 disposed on the first rotating shaft 321, a second rotating shaft 324, an output gear 325 and a second intermediate gear 326 disposed at intervals on the second rotating shaft 324, the first intermediate gear 323 meshing with the second intermediate gear 326; an input rack 310 meshing with the input gear 322, and an output rack 330 meshing with the output gear 325; wherein, the pitch circle diameter of the first intermediate gear 323 is larger than the pitch circle diameter of the input gear 322, the pitch circle diameter of the output gear 325 is larger than the pitch circle diameter of the second intermediate gear 326, and the pitch circle diameter of the first intermediate gear 323 is larger than the pitch circle diameter of the second intermediate gear 326.

[0051] The first intermediate gear 323 and the input gear 322 are mounted on the first rotating shaft 321, meaning that the first intermediate gear 323 and the input gear 322 can rotate synchronously with the first rotating shaft 321. Understandably, the opposite ends of the first rotating shaft 321 are rotatably mounted on the base 100, thereby allowing the first rotating shaft 321, the first intermediate gear 323, and the input gear 322 to rotate freely relative to the base 100.

[0052] The second intermediate gear 326 and the output gear 325 are mounted on the second rotating shaft 324, meaning that the second intermediate gear 326 and the output gear 325 can rotate synchronously with the second rotating shaft 324. Understandably, the opposite ends of the second rotating shaft 324 are rotatably mounted on the base 100, allowing the second rotating shaft 324, the second intermediate gear 326, and the output gear 325 to rotate freely relative to the base 100.

[0053] The first intermediate gear 323 is engaged with the second intermediate gear 326; the input rack 310 is engaged with the input gear 322, and the output rack 330 is engaged with the output gear 325. Thus, when the load-bearing member 200 drives the input rack 310 to move, the input rack 310 can drive the input gear 322 to rotate. When the input gear 322 rotates, it will cause the first rotating shaft 321 and the first intermediate gear 323 to rotate synchronously, thereby causing the first intermediate gear 323 to drive the second intermediate gear 326 to rotate. When the second intermediate gear 326 rotates, it will cause the second rotating shaft 324 and the output gear 325 to rotate synchronously, thereby causing the output gear 325 to drive the output rack 330 to move, so that the output rack 330 drives the resistance adjuster 510 to move synchronously, thus achieving the effect of adjusting the resistance value of the sliding rheostat 500.

[0054] The pitch circle diameter of the first intermediate gear 323 is larger than that of the input gear 322, resulting in a greater linear velocity output by the first intermediate gear 323 than the linear velocity of the input gear 322 under the action of the input rack 310. The pitch circle diameter of the first intermediate gear 323 is larger than that of the second intermediate gear 326, allowing the second intermediate gear 326 to maintain the same linear velocity when meshing with the first intermediate gear 323, while the second intermediate gear 326, with its smaller pitch circle diameter, rotates at a higher speed. The pitch circle diameter of the output gear 325 is larger than that of the second intermediate gear 326, resulting in a greater linear velocity output by the output gear 325 than that of the second intermediate gear 326. Therefore, the linear velocity of the output gear 325 is greater than that of the input gear 322. When the input rack 310 moves and drives the input gear 322 to rotate, the output gear 325 rotates synchronously under the transmission action, causing a larger displacement of the output rack 330, thus achieving an amplification effect.

[0055] Please refer to Figures 1 to 4 In some embodiments, the multi-stage gear set 320 further includes a third rotating shaft 327 and a third intermediate gear 328 and a fourth intermediate gear 329 disposed on the third rotating shaft 327. The third intermediate gear 328 meshes with the first intermediate gear 323, and the fourth intermediate gear 329 meshes with the second intermediate gear 326. The pitch circle diameter of the fourth intermediate gear 329 is larger than that of the third intermediate gear 328, the pitch circle diameter of the first intermediate gear 323 is larger than that of the third intermediate gear 328, and the pitch circle diameter of the fourth intermediate gear 329 is larger than that of the second intermediate gear 326.

[0056] The third intermediate gear 328 and the fourth intermediate gear 329 are mounted on the third rotating shaft 327, meaning that the third intermediate gear 328 and the fourth intermediate gear 329 can rotate synchronously with the third rotating shaft 327. It can be understood that the opposite ends of the third rotating shaft 327 are rotatably mounted on the base 100, thereby allowing the third rotating shaft 327, the third intermediate gear 328, and the fourth intermediate gear 329 to rotate freely relative to the base 100.

[0057] The third intermediate gear 328 meshes with the first intermediate gear 323, and the fourth intermediate gear 329 meshes with the second intermediate gear 326. Thus, when the load-bearing member 200 drives the input rack 310 to move, the input rack 310 can drive the input gear 322 to rotate. When the input gear 322 rotates, it will cause the first rotating shaft 321 and the first intermediate gear 323 to rotate synchronously, thereby causing the first intermediate gear 323 to drive the third intermediate gear 328 to rotate. The rotation of the third intermediate gear 328 will cause the third rotating shaft 327 and the fourth intermediate gear 329 to rotate synchronously, thereby causing the fourth intermediate gear 329 to drive the second intermediate gear 326 to rotate. When the second intermediate gear 326 rotates, it will cause the second rotating shaft 324 and the output gear 325 to rotate synchronously, thereby causing the output gear 325 to drive the output rack 330 to move, so that the output rack 330 drives the resistance adjuster 510 to move synchronously, thus achieving the effect of adjusting the resistance value of the sliding rheostat 500.

[0058] Specifically, the pitch circle diameter of the first intermediate gear 323 is larger than that of the input gear 322, resulting in a higher linear velocity output by the first intermediate gear 323 compared to the linear velocity formed by the input gear 322 under the action of the input rack 310. The pitch circle diameter of the first intermediate gear 323 is larger than that of the third intermediate gear 328, allowing the third intermediate gear 328 to maintain the same linear velocity when meshing with the first intermediate gear 323, while the third intermediate gear 328, with its smaller pitch circle diameter, rotates at a higher speed. The pitch circle diameter of the fourth intermediate gear 329 is larger than that of the third intermediate gear 328, resulting in a higher linear velocity output by the fourth intermediate gear 329 compared to the linear velocity formed by the third intermediate gear 328 under the action of the third rotating shaft 327. The pitch circle diameter of the fourth intermediate gear 329 is larger than that of the second intermediate gear 326, allowing the second intermediate gear 326 to maintain the same linear velocity when meshing with the fourth intermediate gear 329, while the second intermediate gear 326, with its smaller pitch circle diameter, rotates at a higher speed. The pitch circle diameter of the output gear 325 is larger than that of the second intermediate gear 326, resulting in a greater linear velocity output by the output gear 325 than that of the second intermediate gear 326. Consequently, the linear velocity of the output gear 325 is greater than that of the input gear 322. When the input rack 310 moves and drives the input gear 322 to rotate, the output gear 325 rotates synchronously under the transmission action, causing a larger displacement of the output rack 330, thus further amplifying the effect.

[0059] Optionally, in some embodiments, only one third shaft 327 may be provided on the base 100, so that further amplification can be achieved by utilizing the third intermediate gear 328 and the fourth intermediate gear 329 in the manner described above.

[0060] Alternatively, in other embodiments, two, three, or any number of third rotating shafts 327 can be provided on the base 100, with the multiple third rotating shafts 327 sequentially arranged between the first rotating shaft 321 and the second rotating shaft 324. In this way, on the first and last third rotating shafts 327 along the transmission path, the third intermediate gear 328 on the first third rotating shaft 327 can be engaged with the first intermediate gear 323, and the fourth intermediate gear 329 on the last third rotating shaft 327 can be engaged with the second intermediate gear 326, as described above. Between adjacent third rotating shafts 327, the fourth intermediate gear 329 of one third rotating shaft 327 closer to the first rotating shaft 321 along the transmission path can be engaged with the third intermediate gear 328 of another third rotating shaft 327 closer to the second rotating shaft 324 along the transmission path. This achieves a magnification effect of multiple times.

[0061] Please refer to Figures 1 to 4In some embodiments, a groove 110 is provided on the base 100 along the direction of gravity G, and the input rack 310 is slidably inserted into the groove 110; the output rack 330 is configured to slide in the horizontal direction, and the sliding direction of the output rack 330 is parallel to the adjustment direction of the resistance adjuster 510.

[0062] The slide groove 110 may be, but is not limited to, a hole structure, a groove structure, etc., formed on the base 100. For example, in some embodiments, the base 100 is provided with a columnar slide rail, and the slide rail has a slide groove 110 formed inside along the gravity direction G. The input rack 310 can be inserted into the slide groove 110 along the gravity direction G. At the same time, the slide rail has an opening, so that the tooth structure of the input rack 310 located inside can be exposed and meshed with the multi-stage gear set 320.

[0063] In this embodiment, the output rack 330 is configured to slide in the horizontal direction, that is, the output rack 330 can be meshed with the output gear 325 of the multi-stage gear set 320 in the horizontal direction, so that the output rack 330 can move in the horizontal direction under the transmission action of the multi-stage gear set 320.

[0064] Meanwhile, the sliding direction of the output rack 330 is parallel to the adjustment direction of the resistance regulator 510; thus, when the output rack 330 moves in the horizontal direction, the output rack 330 can drive the resistance regulator 510, which moves in the same direction, to move synchronously, so as to realize the resistance change of the sliding rheostat 500.

[0065] Please refer to Figures 1 to 4 In some embodiments, the transmission assembly 300 further includes a connector 340, which connects both the output terminal 302 and the resistance regulator 510.

[0066] Optionally, the connector 340 may be, but is not limited to, a connecting plate, a connecting rod, a connecting block, a connecting bracket, etc.; the connector 340 is used to connect the output terminal 302 and the resistance regulator 510 at the same time, so that when the output terminal 302 moves relative to the unit, it can synchronously drive the resistance regulator 510 to move.

[0067] For example, in some embodiments, the connector 340 may be a connecting plate, which is connected to the output end 302 of the output rack 330 and the resistance regulator 510 simultaneously by means of bonding, locking, snapping, etc., so that the resistance regulator 510 can move synchronously with the output end 302 of the output rack 330.

[0068] Please refer to Figure 1 and Figure 5In some embodiments, the transmission assembly 300 includes a transmission rod 350, which is hinged to the base 100. The two opposite ends of the transmission rod 350 at the hinge point form an input end 301 and an output end 302, respectively. The input end 301 is connected to the load-bearing member 200, and the output end 302 is connected to the resistance regulator 510. The length of the transmission rod 350 between the input end 301 and the hinge point is less than the length of the transmission rod 350 between the output end 302 and the hinge point.

[0069] The transmission rod 350 refers to a rod-shaped structure capable of transmitting power. The transmission rod 350 is hinged to the base 100, thus forming a lever structure.

[0070] In this embodiment, the length of the transmission rod 350 between the input end 301 and the hinge is set to be less than the length of the transmission rod 350 between the output end 302 and the hinge. Thus, when the input end 301 moves under the action of the load-bearing member 200, the output end 302 can move synchronously and move a greater distance. This can achieve an amplification effect, thereby increasing the resistance change of the sliding rheostat 500, making the weight parameters obtained by comparing the resistance change of the sliding rheostat 500 more accurate.

[0071] Please refer to Figures 1 to 4 In some embodiments, there are multiple elastic support members 400, which are equidistantly arranged around the center of the load-bearing member 200.

[0072] In this embodiment, the number of elastic support members 400 is set to multiple, such as two, three, four, or more. Multiple elastic support members 400 are equidistantly arranged around the center of the load-bearing member 200. Thus, multiple elastic support members 400 can work together to support the load-bearing member 200, resulting in better stability of the load-bearing member 200 when carrying the liquefied gas tank or compressing the elastic support members 400.

[0073] For example, in some embodiments, the number of elastic support members 400 can be four. The four elastic support members 400 can be arranged diagonally and equidistantly around the center of the load-bearing member 200. The use of four elastic support members 400 can effectively improve the stability of the load-bearing member, and when the load-bearing member no longer supports the liquefied gas tank, the load-bearing member can return to its original position under the action of the elastic support members 400.

[0074] Please refer to Figures 1 to 4 In some embodiments, along the direction of gravity G, the base 100 is provided with a plurality of limiting grooves 120, and at least a portion of the elastic support 400 is accommodated in the corresponding limiting groove 120.

[0075] In this embodiment, a plurality of limiting grooves 120 are provided on the base 100 along the gravity direction G. In this way, at least a portion of the elastic support 400 can be accommodated in the corresponding limiting groove 120. The limiting groove 120 can limit the movement position of the elastic support 400, which can effectively reduce the probability of the elastic support 400 shifting.

[0076] For example, in some embodiments, the number of limiting grooves 120 can be four, the number of elastic support members 400 can also be four, and the elastic support members 400 can be respectively inserted into the corresponding limiting grooves 120 for assembly.

[0077] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A weighing base, characterized in that: include A base, on which an elastic support and a sliding rheostat are provided; A load-bearing component for placing a liquefied gas tank, the load-bearing component being mounted on the elastic support component; A transmission assembly is disposed on the base. The transmission assembly has an input end and an output end. The input end is disposed on the load-bearing member. The output end is connected to the resistance adjuster of the sliding rheostat. The output end is configured to move synchronously with the input end when it moves, thereby driving the resistance adjuster to move and adjusting the resistance value of the sliding rheostat. as well as A communication module is electrically connected to the sliding rheostat. The communication module is configured to acquire the resistance change of the sliding rheostat and transmit it to a terminal, so that the terminal can determine the weight borne by the load-bearing component based on the resistance change.

2. The weighing base according to claim 1, characterized in that: The input stroke of the input terminal is m, and the output stroke of the output terminal corresponding to the input stroke m is n; where m < n.

3. The weighing base according to claim 2, characterized in that: The transmission assembly includes an input rack, a multi-stage gear set, and an output rack. Along the direction of gravity, the input rack is movably mounted on the base, with the end of the input rack facing the load-bearing member being the input end, which is connected to the load-bearing member. The output rack forms the output end, which is connected to the resistance regulator. The input rack is meshed with the input gear of the multi-stage gear set, and the output rack is meshed with the output gear of the multi-stage gear set.

4. The weighing base according to claim 3, characterized in that: The multi-stage gear set includes a first rotating shaft, an input gear and a first intermediate gear disposed on the first rotating shaft, a second rotating shaft, an output gear and a second intermediate gear disposed at intervals on the second rotating shaft, wherein the first intermediate gear meshes with the second intermediate gear; an input rack meshes with the input gear, and an output rack meshes with the output gear; wherein the pitch circle diameter of the first intermediate gear is larger than the pitch circle diameter of the input gear, the pitch circle diameter of the output gear is larger than the pitch circle diameter of the second intermediate gear, and the pitch circle diameter of the first intermediate gear is larger than the pitch circle diameter of the second intermediate gear.

5. The weighing base according to claim 4, characterized in that: The multi-stage gear set further includes a third rotating shaft and a third intermediate gear and a fourth intermediate gear disposed on the third rotating shaft. The third intermediate gear meshes with the first intermediate gear, and the fourth intermediate gear meshes with the second intermediate gear. The pitch circle diameter of the fourth intermediate gear is larger than that of the third intermediate gear, the pitch circle diameter of the first intermediate gear is larger than that of the third intermediate gear, and the pitch circle diameter of the fourth intermediate gear is larger than that of the second intermediate gear.

6. The weighing base according to any one of claims 3 to 5, characterized in that: Along the direction of gravity, a groove is provided on the base, and the input rack is slidably inserted into the groove; the output rack is configured to slide in the horizontal direction, and the sliding direction of the output rack is parallel to the adjustment direction of the resistance regulator.

7. The weighing base according to any one of claims 3 to 5, characterized in that: The transmission assembly also includes a connector that connects both the output terminal and the resistance regulator.

8. The weighing base according to claim 2, characterized in that: The transmission assembly includes a transmission rod hinged to the base. The two opposite ends of the transmission rod at the hinge point respectively form the input end and the output end. The input end is connected to the load-bearing component, and the output end is connected to the resistance regulator. The length of the transmission rod between the input end and the hinge point is less than the length of the transmission rod between the output end and the hinge point.

9. The weighing base according to any one of claims 1 to 5 and 8, characterized in that: The number of elastic support members is multiple, and the multiple elastic support members are arranged equidistantly around the center of the load-bearing member.

10. The weighing base according to claim 9, characterized in that: Along the direction of gravity, the base is provided with a plurality of limiting grooves, and at least a portion of the elastic support is accommodated in the corresponding limiting groove.

Images