Compact weighing module of clothes airing machine

Abstract

The utility model discloses a weighing module of a compact clothes airing machine. The weighing module comprises a fixed frame, a pulley frame, a pulley and a strain gauge integrated with a detection sheet, the fixing frame comprises side plates and a top plate. The strain gauge is fixed on the lower side of the top plate; the pulley yoke is fixed on the lower side of the strain gauge; the pulley is mounted in the pulley yoke through a wheel shaft; a protection frame is installed on the inner side of the side plate and comprises two vertical walls, vertical kidney-shaped holes are formed in the vertical walls, and the two ends of the wheel shaft are located in the kidney-shaped holes in a suspended mode. After the steel wire rope extending from the driving device bypasses the pulley, the lower end of the steel wire rope is connected with the airing rod; due to the compact structural layout, the whole weighing module occupies a small space and can be conveniently mounted in a limited space of the clothes airing machine; meanwhile, the protection frame provides extra supporting and protection functions, and the space layout of the protection frame and other parts is very reasonable, so that the whole module is more compact.

Description

Technical Field

[0001] This utility model relates to a weighing module, and more particularly to a compact weighing module for clothes drying racks, which is easy to install. Background Technology

[0002] A weighing system is installed on the clothes drying rack to weigh the clothes on the drying rod and display the weight, which can prevent the clothes drying rack from being overloaded or partially overloaded.

[0003] The existing technology involves mounting the weighing system on the main unit, including the weighing module and display, and connecting it to the steel wire rope that bears the weight of the drying rack. The weighing system consists of two weighing modules, installed at opposite ends of the main unit.

[0004] CN2110699934B discloses a drying control system based on the weight change of clothes during drying, which includes a weighing module, including a fixed frame, a pulley assembly, and a gravity sensor. The fixed frame includes a U-shaped groove formed by a base plate and two side plates. The gravity sensor and the pulley assembly are located in the U-shaped groove of the fixed frame, and the axis of the U-shaped groove is at a 45-degree angle to the horizontal direction.

[0005] This technology has the following problems: 1. The specific angle setting requires high precision in the machining of the fixing frame and high precision in the installation of the gravity sensor and pulley assembly. 2. The weighing module occupies a large installation space. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a compact clothes drying rack weighing module that is easy to install.

[0007] The technical solution of this utility model to solve the above-mentioned technical problems is as follows: a compact clothes drying rack weighing module, including a fixed frame, a pulley frame, a pulley, and a strain gauge integrated with a detection plate; the fixed frame includes a side plate and a top plate; the strain gauge is fixed to the lower side of the top plate; the pulley frame is fixed to the lower side of the strain gauge; the pulley is installed in the pulley frame through a wheel axle; a protective frame is installed on the inner side of the side plate, the protective frame includes two vertical walls, the vertical walls are provided with vertical waist-shaped holes, and the two ends of the wheel axle are suspended in the waist-shaped holes; a steel wire rope extending from the drive device passes around the pulley, and the lower end of the steel wire rope is connected to the drying rod.

[0008] A further preferred embodiment of this utility model is as follows: the strain gauge includes a fixing part and a deformation part, and the top plate is provided with a avoidance hole corresponding to the deformation part.

[0009] A further preferred embodiment of this utility model is: the strain gauge includes an outer arc-shaped groove and an inner arc-shaped groove, and the outer arc-shaped groove and the inner arc-shaped groove are arranged in opposite directions;

[0010] The central area of ​​the inner arc-shaped groove is provided with a first fixing hole;

[0011] The pulley frame includes a first side wall, a second side wall, and a top wall, and the top wall is provided with a second fixing hole;

[0012] The first screw passes through the first fixing hole and connects to the second fixing hole.

[0013] A further preferred embodiment of this utility model is: two limiting protrusions are provided on the top wall, and the limiting protrusions are inserted into the inner arc-shaped groove.

[0014] A further preferred embodiment of this utility model is as follows: the protective frame includes two L-shaped fixing pieces, each L-shaped fixing piece including a vertical wall and a connecting wall, the connecting wall being fixed to the side plate by a second screw.

[0015] Another topic: a compact clothes drying rack weighing module, including a fixed frame, pulley frame, pulleys, and strain gauges with integrated detection plates;

[0016] The mounting frame includes side plates and a base plate;

[0017] The strain gauge is fixed to the upper side of the base plate;

[0018] The pulley bracket is fixed to the upper side of the strain gauge;

[0019] The pulley is mounted inside the pulley frame via an axle;

[0020] A protective frame is installed on the inner side of the side plate. The protective frame includes two vertical walls and vertical waist-shaped holes on the vertical walls. The two ends of the wheel axle are suspended in the waist-shaped holes.

[0021] The steel wire rope extending from the drive unit passes over the pulley, and its lower end is connected to the drying rod.

[0022] A further preferred embodiment of this utility model is as follows: the strain gauge includes a fixing part and a deformation part, and the base plate is provided with a corresponding avoidance hole for the deformation part.

[0023] A further preferred embodiment of this utility model is: the strain gauge includes an outer arc-shaped groove and an inner arc-shaped groove, and the outer arc-shaped groove and the inner arc-shaped groove are arranged in opposite directions;

[0024] The central area of ​​the inner arc-shaped groove is provided with a first fixing hole;

[0025] The pulley frame includes a first side wall, a second side wall, and a bottom wall, and the bottom wall is provided with a second fixing hole;

[0026] The first screw passes through the first fixing hole and connects to the second fixing hole.

[0027] A further preferred embodiment of this utility model is: two limiting protrusions are provided on the bottom wall, and the limiting protrusions are inserted into the inner arc-shaped groove.

[0028] A further preferred embodiment of this utility model is as follows: the protective frame includes two vertical walls integrally connected to the side plate, the two vertical walls extend outward for a certain distance and have the vertical waist-shaped hole at the outer end, and the two vertical walls are spaced apart to form an accommodating area.

[0029] Compared with existing technologies, the advantages of this utility model are: the compact clothes drying rack weighing module achieves efficient space utilization through optimized layout and structure of its components. By fixing the strain gauges to the top or bottom plate and the pulley bracket to the underside or top side of the strain gauges, this compact structural layout minimizes the space occupied by the entire weighing module, making it easy to install within the limited space of a clothes drying rack. Simultaneously, the protective frame provides additional support and protection, and its spatial arrangement with other components is highly rational, making the entire module even more compact. Therefore, it can be more flexibly adapted to various models of clothes drying racks, better meeting the needs of the production process chain for this type of integrated module.

[0030] The compact clothes drying rack weighing module achieves efficient weight transfer from the drying rod to the strain gauge through the orderly connection of steel wire rope, pulleys, pulley frames, and strain gauges. The steel wire rope extends from the drive unit, passes over the pulleys, and is securely connected to the drying rod. When clothes are hung on the rod, their weight is transferred to the steel wire rope, which, under gravity, generates tension, which is then transmitted to the pulleys. The pulleys are mounted in the pulley frame via axles. As the steel wire rope passes over the pulleys, the pulleys rotate accordingly based on the tension in the rope. The pulley frame is fixed to the underside or top side of the strain gauge; when the pulley frame is subjected to tension from the steel wire rope, this force is transmitted to the strain gauge.

[0031] This compact structure not only ensures efficient and stable force transmission, reducing energy loss, but also improves the detection accuracy of the weighing module. Simultaneously, the compact layout makes the entire system more stable, reducing measurement errors caused by external forces or vibrations. Therefore, the compact structure of this module does not compromise its intended function; on the contrary, it enhances the effectiveness of the target function.

[0032] In summary, the two technical solutions of the compact clothes drying rack weighing module achieve accurate weighing and real-time display of the weight of clothes hanging on the drying rack through efficient and precise force transmission and signal conversion. Simultaneously, the synergistic effect of the protective frame significantly improves the system's stability and reliability, providing strong protection for the safe operation of the clothes drying rack and the user's convenience. Attached Figure Description

[0033] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present invention. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0034] Figure 1 This is a schematic diagram of a clothes drying rack with a compact weighing module installed in Example 1;

[0035] Figure 2 This is a schematic diagram of the installation structure of the compact weighing module in Example 1. Figure 1 ;

[0036] Figure 3 This is a schematic diagram of the installation structure of the compact weighing module in Example 1. Figure 2 ;

[0037] Figure 4 This is Embodiment 1 of the present utility model. Figure 3 A magnified view of a section at point A in the middle;

[0038] Figure 5 This is a schematic diagram of the structure of a fixing frame according to an embodiment of the present utility model;

[0039] Figure 6 This is a schematic diagram of the installation structure of the compact weighing module in Example 2. Figure 1 ;

[0040] Figure 7 This is a schematic diagram of the installation structure of the compact weighing module in Example 2. Figure 2 ;

[0041] Figure 8 This is a structural disassembly diagram of the compact weighing module in Embodiment 2;

[0042] Figure 9 Example 2 Figure 6 Enlarged view of the local structure at point B;

[0043] Figure 10 Example 2 Figure 7 Enlarged view of the local structure at point C. Detailed Implementation

[0044] The preferred embodiments of the present invention will now be described in detail 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.

[0045] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it will not be further defined and explained in subsequent figures.

[0046] Example 1

[0047] like Figures 1 to 5 As shown, the compact clothes drying rack weighing module 100 is a high-precision, compact weighing system designed to improve the safety and reliability of the clothes drying rack by accurately detecting the weight of the clothes on the drying rod, thus preventing the clothes drying rack from being overloaded or partially overloaded.

[0048] This weighing module features easy installation, small footprint, and compact structure, making it suitable for various types of clothes drying racks. It mainly consists of a fixed frame 10, a pulley frame 20, pulleys 30, and a strain gauge 40 integrated with a detection plate.

[0049] The fixing frame 10 is composed of a side plate 11 and a top plate 12. The strain gauge 40 is fixed on the lower side of the top plate 12, and the pulley frame 20 is fixed on the lower side of the strain gauge 40. The pulley 30 is installed in the pulley frame 20 through the wheel axle 31.

[0050] Additionally, a protective frame 50 is installed on the inner side of the side plate 11. The protective frame 50 includes two vertical walls e1, and vertical waist-shaped holes e3 are provided on the vertical walls e1. The two ends of the wheel axle 31 are suspended in the waist-shaped holes e3. The steel wire rope s extending from the drive device 101 passes around the pulley 30 and the lower end of the steel wire rope s is connected to the drying rod 102.

[0051] In the actual repositioning and transmission process, the steel wire rope s extends from the drive device 101, passes around the pulley 30, and is firmly connected to the drying rod 102. When clothes are hung on the drying rod 102, the weight of the clothes is transmitted to the steel wire rope s through the drying rod 102. The steel wire rope s generates tension under the action of gravity and transmits this tension to the pulley 30.

[0052] Pulley 30 is mounted inside pulley frame 20 via axle 31. When wire rope s passes over pulley 30, pulley 30 rotates accordingly based on the tension of wire rope s. Pulley frame 20 is fixed to the underside of strain gauge 40. When pulley frame 20 is subjected to tension from wire rope s, this force is transmitted to strain gauge 40. Strain gauge 40 is the core component of the weighing module; it senses the magnitude of the force through deformation detected by its deformation section 42.

[0053] The strain gauge 40 integrates a detection element. When the deformation part 42 deforms, the detection element detects this deformation and preferably converts it into an electrical signal. This electrical signal is directly proportional to the weight of the clothes on the drying rod 102; that is, the greater the weight of the clothes, the greater the deformation of the strain gauge 40, and the stronger the detected electrical signal. The electrical signal generated by the detection element is transmitted to the control system of the clothes dryer. The control system processes and calculates the received electrical signal and finally displays the weight of the clothes in digital form on the display of the clothes dryer, allowing the user to intuitively understand the weight of the clothes on the drying rod 102.

[0054] When the weight of the clothes hanging on the drying rod 102 exceeds the detection threshold of the strain gauge 40, the vertical waist-shaped hole e3 of the protective frame 50 can effectively support the axle 31 and prevent the pulley frame 20 from moving down excessively. This technique avoids damage to the deformation part 42 of the strain gauge 40 due to excessive deformation, ensuring the stability and reliability of the weighing module under overload conditions.

[0055] More specifically, the strain gauge 40 consists of a fixing part 41 and a deformation part 42, wherein the fixing part 41 is used to securely mount the strain gauge 40 on the lower side of the top plate 12. To accommodate the vertical floating of the deformation part 42 under force, a corresponding avoidance hole 13 is specially provided on the top plate 12. When the weight of the clothes on the drying rod 102 is transmitted to the pulley 30 through the wire rope s and finally acts on the strain gauge 40, the deformation part 42 will deform accordingly under the force. At this time, the presence of the avoidance hole 13 provides sufficient space for the deformation part 42 to float freely in the vertical direction.

[0056] The strain gauge 40 not only includes a fixing part 41 for installation and a deformation part 42 for sensing weight changes, but also features an outer arc-shaped groove d1 and an inner arc-shaped groove d2. These two arc-shaped grooves are oriented opposite to each other, allowing the strain gauge 40 to deform more flexibly under stress, thus enabling more accurate detection of weight changes. A first fixing hole d3 is provided in the central area of ​​the inner arc-shaped groove d2, which is used for connection with the pulley frame 20.

[0057] The pulley frame 20 consists of a first side wall 21, a second side wall 22, and a top wall 23. A second fixing hole 24 is correspondingly provided on the top wall 23. A first screw t1 passes through the first fixing hole d3 and connects to the second fixing hole 24, achieving a stable connection between the strain gauge 40 and the pulley frame 20. Furthermore, two limiting protrusions 25 are provided on the top wall 23. These protrusions insert into the inner arc-shaped groove d2, ensuring more precise and efficient force transmission.

[0058] The protective frame 50 also provides strong protection for the safety and stability of the entire weighing module. The protective frame 50 consists of two L-shaped fixing plates 51, each of which includes a vertical wall e1 and a connecting wall e2.

[0059] The connecting wall e2 is fixed to the side plate 11 by the second screw t2. This fixing method is not only firm and reliable, but also easy to install and maintain.

[0060] The vertical wall e1 is provided with vertical waist-shaped holes e3, and the two ends of the wheel axle 31 are suspended in these waist-shaped holes. This technical means not only ensures the stable operation of the wheel axle 31, but also reduces wear caused by friction and extends the service life of the wheel axle 31.

[0061] When the weight of the clothes on the drying rod 102 is transferred to the pulley 30 via the steel wire rope s, the protective frame 50 effectively supports the axle 31, preventing the pulley frame 20 from falling excessively, thereby avoiding damage to the deformation part 42 of the strain gauge 40 due to excessive deformation. In the event of accidental detachment of the pulley frame 20, the protective frame 50 can also provide final support, preventing the drying rod 102 from suddenly falling and ensuring the safe operation of the entire clothes drying system.

[0062] Example 2

[0063] The basic technical means in this embodiment are the same as those in Embodiment 1, except that:

[0064] like Figures 6 to 10 As shown, the compact clothes drying rack weighing module 100 is a highly integrated and ingeniously designed device. Its core components include a mounting frame 10, a pulley frame 20, pulleys 30, and a strain gauge 40 with integrated detection plates. The mounting frame 10, as the basic structure of the entire module, consists of a side plate 11 and a base plate 12, providing a stable mounting platform for other components.

[0065] The strain gauge 40 is fixed to the upper side of the base plate 12, and its position ensures accurate sensing of weight changes from the drying rod 102. The pulley bracket 20 is fixed to the upper side of the strain gauge 40, providing stable support for the pulley 30. The pulley 30 is mounted in the pulley bracket 20 via an axle 31, which allows the wire rope s to smoothly pass over the pulley 30, thereby effectively transferring the weight of the drying rod 102 to the strain gauge 40.

[0066] A protective frame 50 is specially installed on the inner side of the side plate 11 of the fixed frame 10. This technical means significantly enhances the stability and safety of the entire weighing module. The protective frame 50 consists of two vertical walls e1, each of which is provided with a vertical waist-shaped hole e3.

[0067] Both ends of the axle 31 are suspended within these waist-shaped holes e3, providing sufficient room for movement and ensuring the flexibility and stability of the pulley 30 during operation. The steel wire rope s extending from the drive unit 101 passes around the pulley 30 and its lower end is securely connected to the drying rod 102.

[0068] When clothes are hung on the drying rod 102, the weight of the clothes is transmitted to the pulley 30 via the steel wire rope s, and then to the strain gauge 40 via the pulley frame 20. The deformation part 42 of the strain gauge 40 deforms under the action of force, and the detection plate integrated inside it can sensitively detect this deformation and convert it into an electrical signal, thereby realizing accurate measurement and real-time display of the weight of the clothes on the drying rod 102.

[0069] Specifically, the strain gauge 40 consists of a fixing part 41 and a deformation part 42. The fixing part 41 is used to securely mount the strain gauge 40 on the upper side of the base plate 12, while the deformation part 42 is responsible for sensing weight changes. To ensure that the deformation part 42 can deform freely under stress, a corresponding avoidance hole 13 is specially provided on the base plate 12. The avoidance hole 13 provides sufficient space for the deformation part 42 to float freely in the vertical direction, thereby ensuring that the strain gauge 40 can accurately sense and measure the weight of the clothes on the drying rod 102.

[0070] The strain gauge 40 also has an outer arc-shaped groove d1 and an inner arc-shaped groove d2, which are oriented opposite to each other. This allows the strain gauge 40 to deform more flexibly when subjected to force, thereby more accurately detecting weight changes. A first fixing hole d3 is provided in the central area of ​​the inner arc-shaped groove d2, which is used to connect with the pulley frame 20.

[0071] The pulley frame 20 consists of a first side wall 21, a second side wall 22, and a bottom wall 23. A second fixing hole 24 is correspondingly provided on the bottom wall 23. A first screw t1 passes through the first fixing hole d3 and connects to the second fixing hole 24, achieving a stable connection between the strain gauge 40 and the pulley frame 20. Furthermore, two limiting protrusions 25 are cleverly designed on the bottom wall 23. These protrusions insert into the inner arc-shaped groove d2, ensuring more precise and efficient force transmission.

[0072] The protective frame 50 provides strong protection for the safety and stability of the entire weighing module. The protective frame 50 consists of two vertical walls e1 integrally connected to the side plate 11. These two vertical walls e1 extend outwards and have vertical oblong holes e3 at their outer ends. A space is formed between the two vertical walls e1, creating a receiving area specifically for accommodating the pulley 30 and pulley frame 20. When the weight of the clothes on the drying rod 102 is transmitted to the pulley 30 via the wire rope s, in case of overload, the protective frame 50 can effectively support the axle 31, preventing the pulley frame 20 from excessively descending, thereby avoiding damage to the deformation portion 42 of the strain gauge 40 due to excessive deformation. Moreover, in the event of accidental detachment of the pulley frame 20, the protective frame 50 can also provide final support, preventing the drying rod 102 from suddenly falling and ensuring the safe operation of the entire clothes drying system.

[0073] In the description of this utility model, it should be noted that the terms "upper," "lower," "front," "rear," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model. Similarly, "first" and "second" are only for ease of understanding and have no other directional meaning, and cannot be considered as limitations on this utility model.

[0074] This paper introduces the compact clothes drying rack weighing module provided by this utility model. Specific examples are used to illustrate the principle and implementation of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand this utility model and its core ideas. It should be noted that those skilled in the art can make various improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A compact clothes drying rack weighing module, characterized in that: Includes a fixed frame, pulley frame, pulleys, and strain gauges with integrated detection gauges; The mounting frame includes side plates and a top plate; The strain gauge is fixed to the lower side of the top plate; The pulley bracket is fixed to the lower side of the strain gauge; The pulley is mounted inside the pulley frame via an axle; A protective frame is installed on the inner side of the side plate. The protective frame includes two vertical walls and vertical waist-shaped holes on the vertical walls. The two ends of the wheel axle are suspended in the waist-shaped holes. The steel wire rope extending from the drive unit passes over the pulley, and its lower end is connected to the drying rod.

2. The compact clothes drying rack weighing module according to claim 1, characterized in that: The strain gauge includes a fixed part and a deformation part, and the top plate has a corresponding avoidance hole for the deformation part.

3. The compact clothes drying rack weighing module according to claim 1, characterized in that: The strain gauge includes an outer arc-shaped groove and an inner arc-shaped groove, and the outer arc-shaped groove and the inner arc-shaped groove are arranged with their orientations opposite to each other; The central region of the inner arc-shaped groove is provided with a first fixing hole; The pulley frame includes a first side wall, a second side wall, and a top wall, and the top wall is provided with a second fixing hole; The first screw passes through the first fixing hole and connects to the second fixing hole.

4. The compact clothes drying rack weighing module according to claim 3, characterized in that: The top wall is provided with two limiting protrusions, which are inserted into the inner arc-shaped groove.

5. The compact clothes drying rack weighing module according to claim 1, characterized in that: The protective frame includes two L-shaped fixing plates, each L-shaped fixing plate including a vertical wall and a connecting wall, the connecting wall being fixed to the side plate by a second screw.

6. A compact clothes drying rack weighing module, characterized in that: Includes a fixed frame, pulley frame, pulleys, and strain gauges with integrated detection gauges; The mounting frame includes side plates and a base plate; The strain gauge is fixed to the upper side of the base plate; The pulley bracket is fixed to the upper side of the strain gauge; The pulley is mounted inside the pulley frame via an axle; A protective frame is installed on the inner side of the side plate. The protective frame includes two vertical walls and vertical waist-shaped holes on the vertical walls. The two ends of the wheel axle are suspended in the waist-shaped holes. The steel wire rope extending from the drive unit passes over the pulley, and its lower end is connected to the drying rod.

7. The compact clothes drying rack weighing module according to claim 6, characterized in that: The strain gauge includes a fixed part and a deformation part, and the base plate has a corresponding avoidance hole for the deformation part.

8. The compact clothes drying rack weighing module according to claim 6, characterized in that: The strain gauge includes an outer arc-shaped groove and an inner arc-shaped groove, and the outer arc-shaped groove and the inner arc-shaped groove are arranged with their orientations opposite to each other; The central area of ​​the inner arc-shaped groove is provided with a first fixing hole; The pulley frame includes a first side wall, a second side wall, and a bottom wall, and the bottom wall is provided with a second fixing hole; The first screw passes through the first fixing hole and connects to the second fixing hole.

9. The compact clothes drying rack weighing module according to claim 8, characterized in that: The bottom wall is provided with two limiting protrusions, which are inserted into the inner arc-shaped groove.

10. The compact clothes drying rack weighing module according to claim 6, characterized in that: The protective frame includes two vertical walls integrally connected to the side plate. The two vertical walls extend outward for a certain distance and have the vertical waist-shaped hole at their outer ends. The two vertical walls are spaced apart to form an accommodating area.

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