Weighing system installed on host bottom plate and weighing method

Abstract

The invention discloses a weighing system mounted on a host bottom plate and a weighing method. The weighing system comprises a bottom plate, a controller and a winding device, the first fixed pulley is mounted on the side plate; a steel wire rope led out from the winding device bypasses the first fixed pulley; a weighing module is mounted on the bottom plate between the winding device and the first fixed pulley; the weighing module comprises a strain type weighing sensor, a thrust column and a movable pulley, wherein the thrust column and the movable pulley are installed on a rotating support. The middle of the rotating bracket is rotatably mounted on the inner side of the bottom plate; the movable pulley is installed at the first end of the rotating support. The thrust column is installed at the second end of the rotating support. The steel wire rope passes through the movable pulley to enable the thrust column on the rotating support to abut against the strain type weighing sensor. The strain type weighing sensor is connected with the controller; the weight of a heavy object hung on the clothes airing machine is converted into the pressure corresponding to the strain type weighing sensor, and the pressure is only 1 / 4 of the gravity of the heavy object, so that the measurement sensitivity and precision of the system are remarkably improved.

Description

Technical Field

[0001] The present invention relates to a weighing system for a clothes dryer, and particularly to a weighing system installed on the main body bottom plate. Background Art

[0002] A weighing system is equipped on the clothes dryer, which can accurately weigh the clothes hung on the drying rod and visually display the weight, so as to effectively prevent the clothes dryer from being overweight or locally overweight. The current common practice is to install the inductive strain gauge inside the drying rod at the lower end of the wire rope or on the side plate of the main body.

[0003] However, this installation method has the following several significant problems:

[0004] The control circuit and the display of the weighing system are usually arranged in the main body part, and a long wire needs to be wired and connected between this and the inductive strain gauge, which not only increases the complexity of wiring, but also may affect the stability of signal transmission.

[0005] The installation space at the drying rod and the side plate of the main body is extremely narrow, which brings great inconvenience to the installation of the inductive strain gauge and related components. Moreover, the installation process may have an adverse impact on the overall appearance of the product and damage the aesthetics of the product. Generally speaking, based on the traction at both ends of the wire rope, taking the drying rod with a load-bearing capacity of 10 kg as an example, the inductive strain gauge must have an equivalent load-bearing capacity of 5 kg. In this way, the performance requirements for the strain gauge are greatly improved, resulting in a high cost of the inductive strain gauge and increasing the overall manufacturing cost of the product. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a weighing system and a weighing method installed on the main body bottom plate. Through a clever pulley block and a lever mechanism of a rotating bracket, the weight of the heavy object hung on the clothes dryer is converted into the pressure on a strain type weighing sensor, and this pressure can be only 1 / 4 of the gravity of the heavy object, thereby significantly improving the measurement sensitivity and accuracy of the system. At the same time, an automatic reset function is realized by using a floating gap, enhancing the reliability and stability of the system.

[0007] The technical solution of the present invention to solve the above technical problem is: a weighing system installed on the main body bottom plate, including a bottom plate, a controller and a winding device, and the controller and the winding device are installed in the middle area of the bottom plate;

[0008] It further includes a first fixed pulley installed on the side plate, and a weighing module is arranged on the bottom plate between the first fixed pulley and the winding device. The weighing module includes a strain type weighing sensor, a rotating bracket, and a thrust column and a movable pulley respectively installed at both ends of the rotating bracket;

[0009] The middle position of the rotating bracket is installed on the bottom plate through an N-shaped bracket. The N-shaped bracket includes a top plate and two side plates, and a floating gap is formed between the top wall of the rotating bracket and the top plate;

[0010] In the first state, the steel wire rope passes through the movable pulley. The force on the movable pulley will drive the rotating bracket to rotate in the first direction. The floating gap on the first side of the rotating bracket decreases, and the floating gap on the second side of the rotating bracket increases; until the thrust column on the rotating bracket triggers the strain type weighing sensor;

[0011] In the second state, the force applied to the movable pulley gradually becomes smaller. The rotating bracket will rotate in the second direction. The floating gap on the first side of the rotating bracket increases, the floating gap on the second side of the rotating bracket decreases, and the thrust column leaves the strain type weighing sensor until both ends of the rotating bracket return to the balanced state.

[0012] A further preferred technical solution of the present invention is that a second fixed pulley is installed in the middle of the rotating bracket. The steel wire rope led out from the winding device passes through the bottom of the second fixed pulley and then obliquely upward through the movable pulley and then horizontally extends to the upper side of the first fixed pulley.

[0013] A further preferred technical solution of the present invention is that a deformation window is opened on the bottom plate;

[0014] The elastic deformation part of the strain type weighing sensor is located at the position of the deformation window;

[0015] The thrust column acts on the elastic deformation part of the strain type weighing sensor.

[0016] A reinforcing bottom plate is provided outside the bottom plate. The thickness of the bottom plate is 0.5 - 0.8 mm, and the thickness of the reinforcing bottom plate is 1.2 - 1.5 mm.

[0017] Another technical theme: A weighing system installed on the main machine bottom plate, including a bottom plate, with a controller and a winding device installed in the middle position;

[0018] A first fixed pulley, installed on the side plate, and the steel wire rope led out from the winding device bypasses the first fixed pulley;

[0019] A weighing module is installed on the bottom plate between the winding device and the first fixed pulley;

[0020] The weighing module includes a strain type weighing sensor, and a thrust column and a movable pulley installed on the rotating bracket;

[0021] The middle of the rotating bracket is rotatably installed on the inner side of the bottom plate;

[0022] The movable pulley is installed at the first end of the rotating bracket, and the thrust column is installed at the second end of the rotating bracket;

[0023] The steel wire rope passes through the movable pulley so that the thrust column on the rotating bracket presses against the strain type weighing sensor;

[0024] The strain type weighing sensor is connected to the controller.

[0025] A further preferred technical solution of the present invention is that: the rotating bracket is installed inside the bottom plate through an n-shaped bracket; the n-shaped bracket includes a top plate and two side plates, and the top plate is connected to the bottom plate through a first screw assembly;

[0026] The middle part of the rotating bracket is connected between the two side plates through a first rotating shaft.

[0027] A further preferred technical solution of the present invention is that: the movable pulley is arranged in a through hole at the first end of the rotating bracket through a second pin;

[0028] The thrust column is arranged in a through hole at the second end of the rotating bracket through a third pin.

[0029] A further preferred technical solution of the present invention is that: a second fixed pulley is installed in the middle of the rotating bracket, and the steel wire rope led out from the winding device passes through the bottom of the second fixed pulley and then obliquely upward through the movable pulley and then horizontally extends to the upper side of the first fixed pulley.

[0030] A further preferred technical solution of the present invention is that: the strain type weighing sensor is installed in the base, and the second screw assembly fixes the strain type weighing sensor in the base;

[0031] The third screw assembly fixes the base to the inner side of the bottom plate;

[0032] A deformation window is opened on the bottom plate;

[0033] The elastic deformation part of the strain type weighing sensor is located at the position of the deformation window;

[0034] The thrust column acts on the elastic deformation part of the strain type weighing sensor.

[0035] A further preferred technical solution of the present invention is that: a reinforced bottom plate is provided on the outer side of the bottom plate, the thickness of the bottom plate is 0.5 - 0.8 mm, and the thickness of the reinforced bottom plate is 1.2 - 1.5 mm.

[0036] Another technical theme: The weighing method of the weighing system includes the following steps:

[0037] (1) The steel wire rope is led out from the winding device and passes through the second fixed pulley, the movable pulley and the first fixed pulley in sequence, so that the steel wire rope is connected to the drying rod, wherein the movable pulley is installed at the first end of the rotating bracket, the second end of the rotating bracket is installed with a thrust column, and the middle of the rotating bracket is rotatably installed on the inner side of the main machine bottom plate;

[0038] (2) When the weight of the clothes on the clothes drying rod is transmitted to the movable pulley through the steel wire rope, the movable pulley is driven by the force to drive the rotating bracket to rotate around the first rotating shaft, so that the thrust column presses the elastic deformation part of the strain type weighing sensor;

[0039] (3) After the strain type weighing sensor detects the deformation of the elastic deformation part, it converts the deformation signal into an electrical signal and transmits the electrical signal to the controller;

[0040] (4) The controller processes the received electrical signal, calculates the weight of the clothes on the clothes drying rod, and displays the weight information on a display screen of the clothes drying machine;

[0041] (5) When the force on the movable pulley gradually decreases and becomes less than a preset value, the rotating bracket rotates in the opposite direction, and the thrust column leaves the elastic deformation part of the strain type weighing sensor until the rotating bracket returns to an initial equilibrium state.

[0042] Compared with the prior art, the advantages of the present invention are: by installing the weighing module on the mainframe bottom plate, the space of the mainframe bottom plate is fully utilized, and the space limitation problem caused by installing the traditional clothes drying machine weighing system on the clothes drying rod or the mainframe side plate is avoided. This technical means not only reduces the occupation of the clothes drying rod and the side plate space, but also improves the overall compactness of the system, making the overall structure of the clothes drying machine more concise and beautiful. At the same time, by reasonably arranging the controller, winding device and weighing module, the system can achieve efficient force transmission and signal transmission during operation, further improving the performance and reliability of the clothes drying machine.

[0043] Furthermore, through the principle of pulleys and levers, the tension of the wire rope is converted into pressure on the strain gauge weighing sensor, and the pressure can be only one-fourth of the weight of the weight. Moreover, in actual use, the distance between the movable pulley and the fixed pulley (the second fixed pulley) can be adjusted to adjust the angle formed between the wire rope and the movable pulley, thereby achieving the purpose of adjusting the ratio of pressure to the weight of the weight. This technical means not only improves the sensitivity of the system, but also achieves higher measurement accuracy by narrowing the range of measurement force.

[0044] In addition, the design of the floating gap enables the rotating bracket to automatically adjust its position when subjected to force, ensuring uniform force transmission, further improving the measurement accuracy and stability of the system. This high-precision measurement function provides users with a reliable clothes drying experience and effectively prevents the clothes drying machine from being overweight or partially overweight.

[0045] In actual use, when the force on the movable pulley is less than the preset value, the rotating bracket will rotate in the reverse direction towards the second direction until its two ends return to the balanced state again. This automatic reset function not only improves the reliability of the system, but also extends the service life of the sensor and reduces system failures caused by external force impacts or misoperations. In addition, through the double fixation method of the screw assembly and the floating gap, the system can maintain stable performance during long-term use and will not deform or be damaged even under large external forces. This high-reliability technical solution makes this weighing system more advantageous in practical applications and can meet the user's requirements for the long-term stable operation of the drying machine. Description of the Drawings

[0046] The present invention will be further described in detail below in conjunction with the drawings and preferred embodiments. However, those skilled in the art will appreciate that these drawings are only drawn for the purpose of explaining the preferred embodiments and should not be construed as limiting the scope of the present invention. In addition, unless otherwise specified, the drawings only schematically show the composition or structure of the described object and may include exaggerated displays, and the drawings are not necessarily drawn to scale.

[0047] Figure 1 Schematic diagram of a drying machine equipped with a weighing system on the base plate;

[0048] Figure 2 Assembly schematic of the weighing system installed on the base plate Figure 1 ;

[0049] Figure 3 Assembly schematic of the weighing system installed on the base plate Figure 2 ;

[0050] Figure 4 Overall structure schematic diagram of the weighing system of the present invention;

[0051] Figure 5 Side view schematic of the weighing system installed on the base plate;

[0052] Figure 6 Partial enlarged view of the side structure of the weighing system;

[0053] Figure 7 Partial enlarged view of the thrust column and the strain type weighing sensor;

[0054] Figure 8 Cooperation schematic diagram of the elastic deformation part and the deformation window. Detailed Description of the Preferred Embodiments

[0055] Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary, and should not be construed as limiting the scope of protection of the present invention.

[0056] It should be noted that like reference numerals denote like elements in the following drawings. Therefore, once an element is defined in one drawing, it will not be further defined and explained in subsequent drawings.

[0057] As Figures 1 to 3 shown, a weighing system 100 mounted on the main board of a host includes a main board 10, on which a controller and a winding device 30 are installed at the middle position. This weighing system 100 is an innovative weighing solution for a clothes dryer, and its core components are installed on the main board 10 of the clothes dryer. This technical solution makes full use of the space of the main board 11, avoiding many problems brought by the installation of the traditional clothes dryer weighing system on the drying rod or the side board of the host, such as narrow installation space, complex wiring, and damaged appearance.

[0058] The main board 10 serves as the bearing foundation of the entire system, and the layout of the various components installed on it is optimized to ensure sufficient strength and stability. Specifically, at the middle position of the main board 10, a controller and a winding device 30 are installed. The controller is responsible for receiving signals from the weighing module and processing and analyzing them, so as to achieve precise control of the weighing function of the clothes dryer. The winding device 30 is a key component for the clothes dryer to achieve the lifting function. It controls the up and down movement of the drying rod by winding and unwinding the steel wire rope s, providing convenience for the clothes drying process.

[0059] In addition, a first fixed pulley r1 is installed on the side board 40, whose function is to guide the direction of the steel wire rope s, ensuring that the steel wire rope can smoothly and steadily transmit power during operation. After the steel wire rope s is led out from the winding device 30, it bypasses the first fixed pulley r1 and continues to extend forward. This cooperation mode between the pulley and the steel wire rope not only helps to optimize the mechanical structure of the clothes dryer, but also improves the operating efficiency and reliability of the system.

[0060] Furthermore, a weighing module 50 is installed on the main board 10 between the winding device 30 and the first fixed pulley r1. The weighing module 50 is the core part of this system. It ingeniously integrates the strain type weighing sensor 51 with the rotating bracket 52, the thrust column 53 and the movable pulley 54 to achieve precise measurement of the weight of the clothes hanging on the drying rod.

[0061] More specifically: As Figures 4 to 7As shown, the rotating bracket 52 is one of the key components of the weighing module, and its middle part is rotatably installed on the inner side of the bottom plate 10. This rotatable structure provides the basis for the transmission and conversion of forces during the weighing process. The movable pulley 54 is installed at the first end of the rotating bracket 52, while the thrust post 53 is installed at the second end of the rotating bracket 52. Such a layout enables the steel wire rope s to drive the rotating bracket 52 to rotate when passing through the movable pulley 54, thereby causing the thrust post 53 to produce corresponding movements.

[0062] When clothes are hung on the drying rod, the steel wire rope s is subjected to the pulling force of the heavy object. This pulling force is transmitted to the rotating bracket 52 through the movable pulley 54, causing the rotating bracket 52 to rotate around its central axis. As the rotating bracket 52 rotates, the thrust post 53 presses against the strain type weighing sensor 51.

[0063] By installing the weighing module on the main machine bottom plate, this weighing system cleverly solves many problems existing in the traditional drying machine weighing system. It not only simplifies the wiring, improves the stability of signal transmission, but also makes full use of the space of the main machine bottom plate, avoiding the problem of insufficient space for the drying rod and side plates. In addition, this technical means also reduces the impact on the appearance of the drying machine and improves the overall aesthetics of the product.

[0064] At the same time, by optimizing the mechanical structure and adopting high-precision strain type weighing sensors, this system can accurately measure the weight of the clothes hung on the drying rod, providing users with a more reliable and convenient drying experience. This innovative weighing system undoubtedly provides a new idea and solution for the development of the drying machine industry, with broad application prospects and market potential.

[0065] More specifically, the rotating bracket 52 is installed on the inner side of the bottom plate 10 through the n-shaped bracket 60; the n-shaped bracket 60 includes a top plate 61 and two side plates 62. The n-shaped bracket 60 is a key component in the weighing system for supporting and fixing the rotating bracket 52. Its overall shape is "n", consisting of the top plate 61 and two side plates 62. This structure not only ensures sufficient strength but also provides a stable support and flexible rotation space for the rotating bracket 52.

[0066] The top plate 61 is the upper structure of the n-shaped bracket. Its main function is to be connected to the bottom plate 10 through the first screw assembly, thereby firmly fixing the entire n-shaped bracket on the bottom plate 10. This connection method not only provides sufficient fixing strength but also facilitates installation and disassembly, making it convenient for system maintenance and repair.

[0067] The two side plates 62 are respectively located on both sides of the top plate 61. Their main function is to provide support and rotation fulcrums for the rotating bracket 52. A pin hole is provided on the inner side of the side plate 62 for installing the first pin a1, thereby realizing the rotatable connection of the rotating bracket 52.

[0068] In addition, the rotating bracket 52 is one of the core components of the weighing system. The key point of its structure is to allow it to rotate around the central axis when subjected to external force, thereby realizing the transmission and conversion of force. The middle part of the rotating bracket 52 is connected between the two side plates 62 of the n-type bracket 60 through the first shaft pin a1. The first shaft pin a1 passes through the shaft pin hole of the side plate 62 and the center hole of the rotating bracket 52, so that the rotating bracket 52 can rotate freely on the shaft pin.

[0069] A certain floating gap f is formed between the top wall 521 of the rotating bracket 52 and the top plate 61 of the n-type bracket 60. The floating gap f allows the rotating bracket 52 to have a certain degree of freedom during the rotation process, so that it can automatically adjust its position when subjected to force, ensure uniform force transmission, and automatically reset when no force is applied.

[0070] The movable pulley 54 is installed at the first end of the rotating bracket 52, and is inserted into the through hole of the first end of the rotating bracket 52 through the second shaft pin a2. The main function of the movable pulley 54 is to change the force direction of the steel wire rope s and transmit the tension of the steel wire rope to the rotating bracket 52. When the steel wire rope s is subjected to tension, the movable pulley 54 will drive the rotating bracket 52 to rotate around the first shaft pin a1.

[0071] The thrust column 53 is installed at the second end of the rotating bracket 52, and is inserted into the through hole of the second end of the rotating bracket 52 through the third shaft pin a3. The function of the thrust column 53 is to convert the rotation of the rotating bracket 52 into the pressure of the weighing sensor 51. When the rotating bracket 52 rotates, the thrust column 53 will vertically press the elastic deformation part v of the strain type weighing sensor 51 upward, thereby triggering the sensor and generating a corresponding electrical signal.

[0072] During the weighing process, after the steel wire rope s is drawn out from the winding device 30, it passes through the bottom of the second fixed pulley r2, passes through the movable pulley 54 obliquely upward, and finally extends horizontally to the upper side of the first fixed pulley r1.

[0073] In addition, the strain gauge weighing sensor 51 is the core measuring element of the entire weighing system, and its installation structure is crucial, which must ensure that the sensor is stable and reliable during operation and that the force can be accurately transmitted to the elastic deformation part v of the sensor.

[0074] The strain gauge load cell 51 is installed in a specially designed base g. The main function of the base g is to provide a stable supporting platform for the sensor and protect the sensor from external environmental influences such as dust, vibration, etc.

[0075] The shape and size of the base g are specifically set to perfectly fit the shape of the strain gauge load cell 51, ensuring that the sensor can maintain a correct posture and position after installation.

[0076] The strain gauge load cell 51 is fixed in the base g by a second screw assembly. This screw connection not only provides sufficient fixing strength, but also ensures that the sensor will not be displaced or loosened during operation.

[0077] The base g is fixed to the inner side of the bottom plate 10 by a third screw assembly. This double fixing structure (the sensor is fixed in the base and the base is fixed to the bottom plate) further enhances the overall stability of the system, ensuring that the sensor remains stable even when subjected to a large external force during the operation of the clothes drying machine.

[0078] Furthermore, if Figure 8 As shown, a deformation window h is provided on the bottom plate 10, which is an important detail in the entire weighing system. The position and size of the deformation window h are precisely calculated to ensure that the elastic deformation portion v of the strain type weighing sensor 51 can be accurately located in the window position.

[0079] The deformation window h provides enough space for the elastic deformation part v of the strain type weighing sensor 51, so that it can deform freely when subjected to force. This technical means avoids the constraint of the bottom plate 10 on the elastic deformation part v of the sensor, thereby ensuring that the sensor can accurately measure the pressure applied by the thrust column 53.

[0080] Preferably, a reinforced bottom plate 11 is provided on the outer side of the bottom plate 10, and the thickness of the bottom plate 10 is 0.5-0.8 mm. This thinner design helps to reduce the weight of the entire system while reducing material costs. The thickness of the reinforced bottom plate 11 is 1.2-1.5 mm, which is thicker than the bottom plate 10. Its main function is to provide additional structural strength. By combining plate layers of different thicknesses, a balance between lightweight and high strength is achieved. By arranging the reinforced bottom plate 11 on the outer side of the bottom plate 10, the compression and bending resistance of the entire structure are significantly improved. Moreover, the addition of the reinforced bottom plate 11 can effectively prevent the bottom plate 10 from deforming when subjected to force, especially during the weighing process, and can ensure the stability of the installation position of the weighing sensor.

[0081] In the weighing system, a floating gap f is provided between the top wall 521 of the rotating bracket 52 and the top plate 61 of the n-type bracket. The existence of this gap provides necessary space for the dynamic movement of the rotating bracket 52, so that it can flexibly adjust its position when subjected to force.

[0082] When the steel wire rope s passes through the movable pulley 54, the movable pulley 54 will be subjected to the pulling force from the steel wire rope. This pulling force will drive the rotating bracket 52 to rotate in the first direction around its central axis (the first pin a1). During the rotation process, the floating gap f on the first side of the rotating bracket 52 will gradually decrease, while the floating gap f on the second side will correspondingly increase. This dynamic change enables the rotating bracket 52 to automatically adjust its posture according to the force-bearing situation, ensuring a more stable and uniform force transmission. In the present technical solution, the first side of the rotating bracket 52 refers to the side where the thrust column 53 is located, and the second side of the rotating bracket 52 refers to the side where the movable pulley 54 is located.

[0083] As the rotating bracket 52 continues to rotate, the thrust column 53 thereon will gradually approach the elastic deformation part v of the strain type weighing sensor 51 and finally apply pressure. When the thrust column 53 triggers the strain type weighing sensor 51, the sensor will convert the received pressure into an electrical signal, thereby realizing the accurate measurement of the weight of the suspended heavy object.

[0084] Preferably, in the present invention, based on the self-weight of the drying rod, the thrust column 53 will always keep the elastic deformation part v in a compressed state.

[0085] This design of the floating gap f not only improves the flexibility and adaptability of the system, but also enhances the overall stability and reliability of the weighing system.

[0086] When the force applied to the movable pulley 54 decreases to below the preset threshold value, the rotating bracket 52 will automatically rotate in the reverse direction in the second direction. During this process, the floating gap f on the first side (the side where the thrust column 53 is located) of the rotating bracket 52 gradually increases, while the floating gap f on the second side (the side where the movable pulley 54 is located) correspondingly decreases.

[0087] This technical means not only realizes the automatic reset function of the system, but also effectively improves the reliability and service life of the weighing system, ensuring high precision and high stability during multiple measurements.

[0088] Moreover, it should be emphasized that in the actual use process of this technical solution, the traditional weighing system usually directly measures the total gravity F of the heavy object 重 . The weighing ratio described here specifically refers to the weighing system at one end of the steel wire rope, rather than the entire clothes drying system, and the following descriptions are all based on this.

[0089] And this system, through the pulley block and lever principle, reduces the actually measured force to 1 / 4 of F weight. This technical means enables the strain type weighing sensor 51 to detect more subtle force changes within the same strain range, thereby significantly improving the sensitivity of the system.

[0090] This technical concept of reducing the measuring force is not only an optimization of the traditional weighing system, but also an innovative breakthrough in the weighing sensor technology. By reducing the measuring force to 1 / 4 of the gravity of the heavy object, this weighing system not only significantly improves the sensitivity and measurement accuracy of the system, but also achieves higher reliability and stability through optimizing the structural design and mechanical principles. This innovation not only has important technical significance, but also provides a new direction for the development of the weighing sensor technology.

[0091] Preferably, as Figures 2 to 4 shown, snap rings m are arranged outside the first rotating shaft a1, the second rotating shaft a2, and the third rotating shaft a3. The setting of the snap rings m provides reliable axial limit for each rotating shaft. During the operation of the weighing system, the tension of the steel wire rope and the dynamic movement of the rotating bracket will generate complex torques and vibrations. The snap rings m can effectively prevent the rotating shafts from axially displacing under the action of these forces, thus ensuring the stable operation of the movable pulley, the thrust column, and the rotating bracket. This axial fixation not only improves the reliability of the system, but also extends the service life of each component.

[0092] In addition, it is necessary to describe the weighing method of the weighing system in this technical solution, including the following steps: (1) First, lead out the steel wire rope s from the winding device 30, and pass it through the second fixed pulley r2, the movable pulley 54, and the first fixed pulley r1 in sequence, and finally connect it to the drying rod. This arrangement ensures that the steel wire rope s can smoothly transmit the tension when the drying rod is stressed. Among them, the movable pulley 54 is installed at the first end of the rotating bracket 52, the second end of the rotating bracket 52 is installed with a thrust column 53, and the middle of the rotating bracket 52 is rotatably installed inside the main machine base plate 10 through the first rotating shaft a1. This technical concept lays the foundation for the subsequent force transmission and weighing process.

[0093] (2) When clothes are hung on the drying rod, the weight of the clothes is transmitted to the movable pulley 54 through the steel wire rope s. After the movable pulley 54 is subjected to a downward oblique pull, it will drive the rotating bracket 52 to rotate around the first rotating shaft a1. As the rotating bracket 52 rotates, the thrust column 53 at its second end gradually approaches the elastic deformation part v of the strain type weighing sensor 51 and finally presses against the elastic deformation part. This process converts the weight of the clothes into the pressure on the strain type weighing sensor, providing a physical basis for the subsequent signal detection and processing.

[0094] (3) The strain-type weighing sensor 51 is a high-precision measurement component of this system, and its core component is the elastic deformation part v. When the thrust column 53 presses against the elastic deformation part v, the elastic deformation part v will undergo a tiny deformation. The strain gauges inside the strain-type weighing sensor 51 can detect this deformation and convert it into an electrical signal. Subsequently, this electrical signal is transmitted to the controller through the output terminal of the sensor. This signal conversion process is a key link in achieving high-precision weighing, ensuring that the system can accurately capture the changes in the weight of the clothes.

[0095] (4) After the controller receives the electrical signal transmitted by the strain-type weighing sensor 51, it will process this signal through the built-in algorithm. Specifically, the controller will calculate the actual weight of the clothes on the drying rod according to the intensity and change law of the electrical signal. The calculation result will be displayed in digital form on the display screen of the clothes dryer for the user to view intuitively. This process not only realizes the real-time measurement of weight but also improves the measurement accuracy and reliability of the system through the intelligent processing of the controller.

[0096] (5) When the clothes on the drying rod are removed or the weight gradually decreases, the tension on the movable pulley 54 will gradually shrink and finally be less than the preset value. At this time, the rotating bracket 52 will rotate in the reverse direction under the action of its own elastic restoring force or other auxiliary mechanisms. As the rotating bracket 52 rotates in the reverse direction, the thrust column 53 gradually moves away from the elastic deformation part v of the strain-type weighing sensor 51 until the rotating bracket 52 returns to the initial equilibrium state. This reset process not only prepares for the next weighing operation but also improves the stability and service life of the system through the automatic reset function.

[0097] This weighing system realizes the high-precision measurement of the weight of the clothes on the drying rod through the strain-type weighing sensor 51 and the precise force transmission structure, with an extremely small error range. This high-precision measurement function provides users with a reliable clothes drying experience and effectively prevents the clothes dryer from being overweight or partially overweight. At the same time, the design of the movable pulley 54 and the rotating bracket 52 converts the weight of the clothes into the pressure on the strain-type weighing sensor, and this pressure is only 1 / 4 of the gravity of the heavy object. This innovative design not only significantly improves the sensitivity of the system but also further improves the measurement accuracy by reducing the range of the measured force.

[0098] In addition, the system has an automatic reset function. When the force on the movable pulley 54 gradually decreases, the rotating bracket 52 can automatically rotate in the reverse direction and return to the initial balance state. This automatic reset function not only improves the reliability of the system, but also extends the service life of the sensor and reduces system failures caused by external force impacts or incorrect operations. The entire weighing module is installed on the main body base plate 10, with a compact structure, making full use of the space of the base plate and avoiding problems such as insufficient space for the drying rod and side plate. Through the double fixation method of the screw assembly and the snap spring m, the system can maintain stable performance during long-term use and will not deform or be damaged even under large external forces.

[0099] Finally, after processing the received signals, the controller intuitively displays the weight information on the display screen of the drying machine. This intelligent display method is not only convenient for users to view, but also further improves the measurement accuracy and stability of the system through the algorithm optimization of the controller.

[0100] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the present invention is usually placed during use. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. The terms "first" and "second" are only for the convenience of description and have no other directional meanings, and should not be construed as a limitation of the present invention.

[0101] A weighing system and a weighing method installed on the main body base plate provided by the present invention have been introduced. In this article, specific examples are used to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only for helping to understand the present invention and its core idea. It should be pointed out that for those of ordinary skill in the art of this technology, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A weighing system installed on the bottom plate of a host, characterized in that: It includes a bottom plate, a controller and a winding device, wherein the controller and the winding device are installed in the middle area of ​​the bottom plate; It also includes a first fixed pulley mounted on the side plate, a weighing module is arranged on the bottom plate between the first fixed pulley and the winding device, and the weighing module includes a strain gauge weighing sensor, a rotating bracket, and a thrust column and a movable pulley respectively mounted on both ends of the rotating bracket; The middle position of the rotating bracket is installed on the bottom plate through an n-type bracket, and the n-type bracket includes a top plate and two side plates, and a floating gap is formed between the top wall of the rotating bracket and the top plate; In the first state, the steel wire rope passes through the movable pulley, and the movable pulley is subjected to force to drive the rotating bracket to rotate in the first direction, the floating gap on the first side of the rotating bracket is reduced, and the floating gap on the second side of the rotating bracket is expanded; until the thrust column on the rotating bracket triggers the strain gauge weighing sensor; In the second state, the force applied to the movable pulley gradually decreases, the rotating bracket will rotate in the second direction, the floating gap on the first side of the rotating bracket will expand, and the floating gap on the second side of the rotating bracket will shrink, and the thrust column will leave the strain type weighing sensor until the two ends of the rotating bracket return to a balanced state.

2. A weighing system installed on the bottom plate of a host according to claim 2, characterized in that: A second fixed pulley is installed in the middle of the rotating bracket. The wire rope drawn out from the winding device passes through the bottom of the second fixed pulley, then tilts upward and passes through the movable pulley, and then extends horizontally to the upper side of the first fixed pulley.

3. A weighing system installed on the bottom plate of a host according to claim 2, characterized in that: A deformation window is provided on the bottom plate; The elastic deformation part of the strain type weighing sensor is located at the deformation window position; The thrust column acts on the elastic deformation part of the strain type weighing sensor. A reinforced bottom plate is arranged on the outer side of the bottom plate, the thickness of the bottom plate is 0.5-0.8 mm, and the thickness of the reinforced bottom plate is 1.2-1.5 mm.

4. A weighing system installed on the bottom plate of a host, characterized in that: include The bottom plate, in the middle of which a controller and a winding device are installed; A first fixed pulley is mounted on the side plate, and the wire rope led out of the winding device passes around the first fixed pulley; a weighing module is mounted on the bottom plate between the winding device and the first fixed pulley; The weighing module includes a strain gauge weighing sensor, a thrust column and a movable pulley mounted on a rotating bracket; The middle of the rotating bracket is rotatably mounted on the inner side of the bottom plate; The movable pulley is mounted on the first end of the rotating bracket, and the thrust column is mounted on the second end of the rotating bracket; The steel wire rope passes through the movable pulley to make the thrust column on the rotating bracket press the strain type weighing sensor; The strain gauge load cell is connected to the controller.

5. A weighing system installed on the bottom plate of a host according to claim 4, characterized in that: The rotating bracket is installed on the inner side of the bottom plate through an n-shaped bracket; The n-type bracket includes a top plate and two side plates, and the top plate is connected to the bottom plate by a first screw assembly; The middle part of the rotating bracket is connected between the two side plates through a first rotating shaft.

6. A weighing system installed on the bottom plate of a host according to claim 4, characterized in that: The movable pulley is inserted into the through hole of the first end portion of the rotating bracket through a second shaft pin; The thrust column is inserted into the passage of the second end of the rotating bracket through a third shaft pin.

7. A weighing system installed on a mainframe bottom plate according to claim 4, characterized in that: A second fixed pulley is installed in the middle of the rotating bracket. The wire rope drawn out from the winding device passes through the bottom of the second fixed pulley, then tilts upward and passes through the movable pulley, and then extends horizontally to the upper side of the first fixed pulley.

8. A weighing system installed on a mainframe bottom plate according to claim 4, characterized in that: The strain gauge load cell is installed in the base, and the second screw assembly fixes the strain gauge load cell in the base; the third screw assembly fixes the base to the inner side of the bottom plate; A deformation window is provided on the bottom plate; The elastic deformation part of the strain type weighing sensor is located at the deformation window position; The thrust column acts on the elastic deformation part of the strain type weighing sensor.

9. A weighing system installed on a mainframe bottom plate according to claim 4, characterized in that: A reinforced bottom plate is arranged on the outer side of the bottom plate, the thickness of the bottom plate is 0.5-0.8 mm, and the thickness of the reinforced bottom plate is 1.2-1.5 mm.

10. A weighing method, characterized in that The steps include: (1) The steel wire rope is led out from the winding device and passes through the second fixed pulley, the movable pulley and the first fixed pulley in sequence, so that the steel wire rope is connected to the drying rod, wherein the movable pulley is installed at the first end of the rotating bracket, the second end of the rotating bracket is installed with a thrust column, and the middle of the rotating bracket is rotatably installed on the inner side of the main machine bottom plate; (2) When the weight of the clothes on the clothes drying rod is transmitted to the movable pulley through the steel wire rope, the movable pulley is driven by the force to drive the rotating bracket to rotate around the first rotating shaft, so that the thrust column presses the elastic deformation part of the strain type weighing sensor; (3) After the strain type weighing sensor detects the deformation of the elastic deformation part, it converts the deformation signal into an electrical signal and transmits the electrical signal to the controller; (4) The controller processes the received electrical signal, calculates the weight of the clothes on the clothes drying rod, and displays the weight information on a display screen of the clothes drying machine; (5) When the force on the movable pulley gradually decreases and becomes less than a preset value, the rotating bracket rotates in the opposite direction, and the thrust column leaves the elastic deformation part of the strain type weighing sensor until the rotating bracket returns to an initial equilibrium state.

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