Household appliance weight accurate weighing device using gravity sensing

Abstract

The invention relates to the technical field of household appliance weighing, and discloses a household appliance weight accurate weighing device applying gravity sensing, which comprises two support frames, the top of each sliding block and two corners of the tops of the two support frames are connected with connecting gaskets in a penetrating manner, and the bottom of each connecting gasket is fixedly provided with a first spring. A mounting base plate is mounted among the four limiting strips, a pressure sensor is fixedly mounted in the middle of the top of the mounting base plate, and a second spring is fixedly arranged at the position, located on the outer edge of the pressure sensor, of the top of the mounting base plate. The distance between the two supporting frames is increased, when the bearing plate and the mounting base plate are kept in situ and are away from each other by a certain distance, a larger household appliance can be conveniently supported for weight measurement, a larger weighing device is not needed, the weighing cost is reduced, meanwhile, the household appliance is fully supported, and the accuracy of the equipment weighing value is improved.

Description

Technical Field

[0001] This invention belongs to the technical field of household appliance weighing, and specifically relates to a precise weighing device for household appliances that utilizes gravity sensing. Background Technology

[0002] Appliance weight testing refers to the process of measuring and evaluating the weight of household appliances (such as washing machines, refrigerators, and air conditioners) to ensure that products meet design specifications, safety standards, and consumer expectations. This testing plays a crucial role in quality control, safety certification, and user experience optimization. For example, by measuring the weight of a washing machine, the washing program can be automatically adjusted to improve energy efficiency and cleaning effect. As the variety of household appliances increases, the frequency of weight testing also increases. To facilitate the weighing and testing of different appliances, the functions and types of precise appliance weight measuring devices are constantly expanding, making them more efficient and convenient to use.

[0003] However, existing precise weighing devices for household appliances that use gravity sensors still have the following drawbacks during use: 1. Existing precision weighing devices for home appliances cannot adequately support large appliances during weighing operations. This severely affects the final weighing value of such appliances, necessitating the replacement with a weighing device that can support a larger area. This not only increases weighing costs but also reduces the accuracy of the weighing values. 2. When weighing appliances of various sizes, existing weighing devices need to maintain a sufficiently large load-bearing area at the top to ensure accurate measurement. If this load-bearing area does not have a fixed function after storage, the device will occupy a large space and be inconvenient to transport. Furthermore, when the weighed appliance needs to be moved, staff will need to manually move the device, increasing their workload and reducing the ease of use of the device.

[0004] Therefore, it is necessary to invent a precise weighing device for household appliances that uses gravity sensing to solve the above problems. Summary of the Invention

[0005] To address the aforementioned problems, this invention provides a precise weighing device for household appliances that utilizes gravity sensing, thereby resolving the issues raised in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a precise weighing device for household appliances using gravity sensing, comprising two support frames, four mounting rails and four first sliding grooves, wherein a size adjustment mechanism and a push-pull fixing integrated assembly are respectively installed between the two support frames, wherein the four mounting rails are respectively fixedly installed on both sides of the top of the two support frames, and the four first sliding grooves are respectively opened on the top of the four mounting rails. The size adjustment mechanism includes eight sliders slidably connected in four first slide grooves, with two sliders slidably connected to the inner wall of each first slide groove. Connecting gaskets are inserted at the top of each slider and at two corners of the tops of the two support frames. A first spring is fixedly mounted at the bottom of each connecting gasket, and the bottom of each first spring is fixedly connected to the top of each slider and the top of the two support frames. Limiting strips are fixedly mounted on both sides of the inner walls of the two support frames. Mounting pads are installed between the four limiting strips. Second slide grooves are formed on both sides of each mounting pad, and the four limiting strips... The outer wall of each end is slidably connected to the inner wall of each end of the two second sliding grooves. A pressure sensor is fixedly installed at the middle position of the top of the mounting pad. A second spring is fixedly installed at the outer edge of the pressure sensor on the top of the mounting pad. Connecting grooves are opened at both ends of the two support frames. A connecting rod is rotatably connected between the inner walls of the four connecting grooves. A connecting frame is rotatably connected at the middle position of the outer wall of the two connecting rods. An electric push rod is fixedly installed on the top of each of the two connecting frames. A bearing plate is fixedly installed on the top of the four connecting pads. One end of each of the two electric push rods is fixedly connected to the two sides of the bottom of the bearing plate. Preferably, a third sliding groove is provided at the middle position of both ends of the bearing plate, and a first sliding strip is inserted and connected to the inner wall of each of the four third sliding grooves. Two first adjusting plates are fixedly connected to one end of each of the four first sliding strips, and a fourth sliding groove is provided on the inner wall of both ends of the two first adjusting plates.

[0007] Preferably, the inner walls of the four fourth slide grooves are all connected with second slide bars, one end of each of the four second slide bars is fixedly connected to two second adjusting plates, and the two first adjusting plates and the two second adjusting plates are respectively fixedly connected to the top of the other four connecting pads. A contact block is fixedly provided on the inner wall of the second spring at the middle position of the bottom of the bearing plate.

[0008] Preferably, the push-pull fixed integrated assembly includes a first connecting cylinder rotatably connected to one side of one of the support frames, an extension rod being inserted through the inner wall of the first connecting cylinder, and a second connecting cylinder being fixedly provided at one end of the extension rod.

[0009] Preferably, a limiting handle is fixedly provided at one end of the second connecting cylinder, and a third spring is fixedly installed at the edge of one end of the first connecting cylinder, with one end of the third spring fixedly connected to the edge of one end of the second connecting cylinder.

[0010] Preferably, a fifth sliding groove is provided at both ends of the bottom of one of the support frames, and an extension strip is fixed at the lower edge of both ends of the other support frame, and the outer wall of the two extension strips is slidably connected to the inner wall of the two fifth sliding grooves respectively.

[0011] Preferably, rollers are rotatably connected to both sides of the bottom of the two support frames, and a fixing bolt is threaded to one side of each of the two support frames. The outer wall of one end of each fixing bolt passes through the inner wall of the two support frames and contacts one side of one of the rollers.

[0012] Preferably, a control panel is installed on one side of the outer wall of one of the support frames, and the pressure sensor and the electric push rod are electrically connected to an external power source through the control panel.

[0013] The technical effects and advantages of this invention are as follows: 1. In this invention, the electric push rod is activated to extend and push the connecting frame, causing the connecting rod to rotate within the inner wall of the connecting frame. This, in turn, unfolds and pushes the two support frames to move, increasing the distance between them. As the support frames move away from each other, the bearing plate at the top of the mounting pad is connected to the mounting pad via a second spring, keeping the bearing plate and mounting pad in their original positions. When they move away from each other to a certain distance, the four second slide bars are blocked by the inner walls of the four fourth slide grooves, which pulls the two first adjustment plates to slide through the sliders connected to them at the bottom in the first slide grooves, also moving away from the bearing plate. This increases the bearing area of ​​the top bearing plate area of ​​the device, making it easier to support larger appliances for weight measurement. When the appliance is placed on top, it compresses the first spring at the top of the slider and the second spring at the top of the mounting pad, causing the contact block to contact the pressure sensor to achieve gravity sensing and complete the weight measurement. This eliminates the need for a larger weighing device, reducing weighing costs, while also providing sufficient support for the appliance and improving the accuracy of the weighing values. 2. In this invention, when using the weighing device, if it needs to be moved to the location where different household appliances are placed, simply rotate the first connecting cylinder to tilt the limiting handle for easy gripping by the staff. The staff can then pull the limiting handle to move the entire weighing device without having to lift it. When not using the device, the two support frames can be combined, and then the limiting handle can be pulled to change the length between the first and second connecting cylinders by stretching the third spring. The limiting handle can then be rotated to the side of the other support frame, thus firmly fixing the two support frames in place. During transportation, the two frames are less likely to detach and occupy more space, and they can remain stable, which not only reduces the burden on the staff but also improves the convenience of using the equipment.

[0014] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description, claims and drawings. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the entire invention; Figure 2 This is a schematic diagram of the inner sides of the two support frames of the present invention; Figure 3 This is an appendix to the specification of this invention. Figure 2 An enlarged schematic diagram of point A in the middle; Figure 4 This is a schematic diagram showing the unfolded ends of the support plate of the present invention; Figure 5 This is a schematic diagram of the bottom of the support plate of the present invention; Figure 6 This is a schematic diagram of the two support frames of the present invention being combined and fixed together; Figure 7 This is a schematic diagram of the bottom of the present invention.

[0017] In the diagram: 1. Support frame; 2. Mounting rail; 3. First slide rail; 4. Size adjustment mechanism; 401. Slider; 402. Connecting washer; 403. First spring; 404. Limiting strip; 405. Mounting pad; 406. Second slide rail; 407. Pressure sensor; 408. Second spring; 409. Connecting groove; 410. Connecting rod; 411. Connecting frame; 412. Electric push rod; 413. Bearing plate; 414. 415. Third slide groove; 416. First slide bar; 417. First adjusting plate; 418. Fourth slide groove; 419. Second slide bar; 420. Contact block; 5. Push-pull fixed integrated assembly; 501. First connecting cylinder; 502. Extension rod; 503. Second connecting cylinder; 504. Limiting grip; 505. Third spring; 506. Fifth slide groove; 507. Extension bar; 6. Roller; 7. Fixing bolt. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] This invention provides, for example Figure 1-7 The device shown is a precise weighing device for home appliances using gravity sensing, including two support frames 1, four mounting rails 2 and four first slide grooves 3. A size adjustment mechanism 4 and a push-pull fixing integrated assembly 5 are respectively installed between the two support frames 1. The four mounting rails 2 are respectively fixedly installed on both sides of the top of the two support frames 1, and the four first slide grooves 3 are respectively opened on the top of the four mounting rails 2. The size adjustment mechanism 4 includes eight sliders 401 slidably connected in four first slide grooves 3, with two sliders 401 slidably connected to the inner wall of each first slide groove 3. Connecting pads 402 are inserted and connected to the top of each slider 401 and to the two corners of the top of the two support frames 1. A first spring 403 is fixedly installed at the bottom of each connecting pad 402, and the bottom of each first spring 403 is fixedly connected to the top of each slider 401 and the top of the two support frames 1. Limiting strips 404 are fixedly installed on both sides of the inner wall of the two support frames 1. Mounting pads 405 are installed between the four limiting strips 404. Second slide grooves 406 are opened on both sides of the mounting pads 405, and one end of each of the four limiting strips 404... The outer walls of the two support frames 1 are slidably connected to the inner walls of the two second slide grooves 406 at both ends. A pressure sensor 407 is fixedly installed at the middle position of the top of the mounting pad 405. A second spring 408 is fixedly installed at the outer edge of the pressure sensor 407 on the top of the mounting pad 405. A connecting groove 409 is opened at both ends of the two support frames 1. A connecting rod 410 is rotatably connected between the inner walls of the four connecting grooves 409. A connecting frame 411 is rotatably connected at the middle position of the outer wall of the two connecting rods 410. An electric push rod 412 is fixedly installed on the top of the two connecting frames 411. A bearing plate 413 is fixedly installed on the top of the four connecting pads 402. One end of the two electric push rods 412 is fixedly connected to the two sides of the bottom of the bearing plate 413.

[0020] A third sliding groove 414 is provided at the middle position of both ends of the bearing plate 413. A first sliding strip 415 is inserted and connected to the inner wall of each of the four third sliding grooves 414. Two first adjusting plates 416 are fixedly connected to one end of each of the four first sliding strips 415. A fourth sliding groove 417 is provided on the inner wall of both ends of each of the two first adjusting plates 416, as shown in the attached instruction manual. Figure 4As shown, one end of the inner wall of the fourth groove 417 has a limiting effect on both ends of the second slide bar 418, so that the end of the second slide bar 418 cannot be disengaged from the inner wall of the fourth groove 417.

[0021] The inner walls of the four fourth slide grooves 417 are all connected with second slide bars 418. One end of each of the four second slide bars 418 is fixedly connected to two second adjustment plates 419. The two first adjustment plates 416 and the two second adjustment plates 419 are respectively fixedly connected to the top of the other four connecting pads 402. The inner wall of the second spring 408 is fixedly provided with a contact block 420 at the middle position of the bottom of the bearing plate 413. When the bearing plate 413 is squeezed, the contact block 420 will cause the bearing plate 413 to compress the second spring 408, thereby causing the contact block 420 to release the pressure sensor 407 to realize gravity sensing, and then measure the weight of the home appliance. When weighing appliances of different sizes, especially large appliances, the electric push rod 412 is first activated to extend it, which in turn pushes the connecting frame 411, causing the connecting rod 410 to rotate within the inner wall of the connecting frame 411. This, in turn, unfolds and pushes the two support frames 1 to move, increasing the distance between them. As the support frames 1 move away from each other, the two limiting strips 404 on their inner sides slide in the second sliding grooves 406 on both sides of the mounting pad 405, ensuring that the position of the mounting pad 405 does not change. At the same time, the upper bearing plate 413 is connected to the mounting pad 405 via the second spring 408, keeping the bearing plate 413 and the mounting pad 405 in their original positions. As the support frames 1 move away, the outermost second adjusting plate 419 moves away from the bearing plate 413. The upper second slide bar 418 slides in the fourth slide groove 417 at both ends of the first adjusting plate 416. When it moves away from a certain distance, the four second slide bars 418 are blocked by the inner walls of the four fourth slide grooves 417, which in turn pulls the two first adjusting plates 416 to slide in the first slide groove 3 through the slider 401 connected to it at the bottom, and also moves away from the support plate 413, which increases the bearing area of ​​the support plate 413 area at the top of the device, making it easier to support larger household appliances for weight measurement. After the household appliance is placed on top, it will compress the first spring 403 at the top of the slider 401 and the second spring 408 at the top of the mounting pad 405, which will cause the contact block 420 to contact the pressure sensor 407 to realize gravity sensing and complete the weight measurement. There is no need to rely on a larger weighing device, reducing weighing costs, while fully supporting the household appliance and improving the accuracy of the weighing value of the equipment. Furthermore, the push-pull fixed integrated assembly 5 includes a first connecting cylinder 501 rotatably connected to one side of one of the support frames 1. An extension rod 502 is inserted through the inner wall of the first connecting cylinder 501. A second connecting cylinder 503 is fixedly provided at one end of the extension rod 502. The first connecting cylinder 501 and the second connecting cylinder 503 are connected by the extension rod 502, so that the rod body composed of the two can be freely stretched to change its length.

[0022] A limiting handle 504 is fixedly provided at one end of the second connecting cylinder 503, and a third spring 505 is fixedly installed at the edge of one end of the first connecting cylinder 501, and one end of the third spring 505 is fixedly connected to the edge of one end of the second connecting cylinder 503.

[0023] One of the support frames 1 has a fifth sliding groove 506 at both ends of its bottom, and the other support frame 1 has an extension strip 507 fixed at the lower edge of both ends. The outer walls of the two extension strips 507 are slidably connected to the inner walls of the two fifth sliding grooves 506 respectively. When using this weighing device, if it needs to be moved to the location of different household appliances, simply rotate the first connecting cylinder 501 to rotate the limiting handle 504 to an inclined state for easy gripping by the operator. See the attached instruction manual for details. Figure 1 As shown, the operator can pull the limit handle 504 to move the entire weighing device without lifting it. When not in use, the two support frames 1 can be combined, as detailed in the instruction manual. Figure 6 As shown, the limit handle 504 is then pulled so that the length between the first connecting cylinder 501 and the second connecting cylinder 503 is changed by stretching the third spring 505. The limit handle 504 is then rotated to the side of another support frame 1, thereby firmly fixing the two support frames 1. During transportation, the two are not easy to separate and occupy a large space, and can remain stable, which not only reduces the burden on the staff, but also improves the convenience of using the equipment. Furthermore, rollers 6 are rotatably connected to both sides of the bottom of the two support frames 1, and fixing bolts 7 are threadedly connected to one side of the two support frames 1. The outer wall of one end of the two fixing bolts 7 passes through the inner wall of the two support frames 1 and contacts one side of one of the rollers 6. When the device is pulled by the limiting handle 504, the device can move smoothly through the rollers 6. When weighing household appliances, tightening the fixing bolts 7 fixes the rollers 6, making it difficult for them to move when bearing household appliances, thus preventing the household appliances from collapsing and being damaged.

[0024] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A precise weighing device for household appliances using gravity sensing, comprising two support frames (1), four mounting rails (2), and four first sliding grooves (3), characterized in that: A size adjustment mechanism (4) and a push-pull fixing integrated assembly (5) are respectively installed between the two support frames (1). The four mounting rails (2) are respectively fixedly installed on both sides of the top of the two support frames (1), and the four first sliding grooves (3) are respectively opened on the top of the four mounting rails (2). The size adjustment mechanism (4) includes eight sliders (401) slidably connected in four first slide grooves (3), and two sliders (401) are slidably connected to the inner wall of each first slide groove (3). Connecting pads (402) are inserted into the top of each slider (401) and at the two corners of the top of the two support frames (1). A first spring (403) is fixedly provided at the bottom of each connecting pad (402), and the bottom of each first spring (403) is fixedly connected to the top of each slider (401) and the top of the two support frames (1). Limiting strips (404) are fixedly provided on both sides of the inner wall of the two support frames (1). An installation pad (405) is installed between the four limiting strips (404). Second slide grooves (406) are opened on both sides of the installation pad (405), and the four limiting strips (404) are connected in a... The outer wall of the end is slidably connected to the inner wall of the two second slide grooves (406) respectively. A pressure sensor (407) is fixedly installed at the middle position of the top of the mounting pad (405). A second spring (408) is fixedly installed at the outer edge of the pressure sensor (407) on the top of the mounting pad (405). A connecting groove (409) is opened at both ends of the two support frames (1). A connecting rod (410) is rotatably connected between the inner walls of the four connecting grooves (409). A connecting frame (411) is rotatably connected at the middle position of the outer wall of the two connecting rods (410). An electric push rod (412) is fixedly installed on the top of the two connecting frames (411). A bearing plate (413) is fixedly installed on the top of the four connecting pads (402), and one end of the two electric push rods (412) is fixedly connected to the two sides of the bottom of the bearing plate (413) respectively.

2. The precise weighing device for household appliances using gravity sensing according to claim 1, characterized in that: The bearing plate (413) has a third slide groove (414) at the middle position of both ends. The inner walls of the four third slide grooves (414) are connected with first slide bars (415). One end of the four first slide bars (415) is fixedly connected to two first adjustment plates (416). The inner walls of both ends of the two first adjustment plates (416) are provided with a fourth slide groove (417).

3. A precise weighing device for household appliances using gravity sensing as described in claim 2, characterized in that: The inner walls of the four fourth slide grooves (417) are all connected with second slide bars (418). One end of each of the four second slide bars (418) is fixedly connected to two second adjusting plates (419). The two first adjusting plates (416) and the two second adjusting plates (419) are respectively fixedly connected to the top of the other four connecting pads (402). The inner wall of the second spring (408) is fixedly provided with a contact block (420) at the middle position of the bottom of the bearing plate (413).

4. A precise weighing device for household appliances using gravity sensing as described in claim 1, characterized in that: The push-pull fixed integrated assembly (5) includes a first connecting cylinder (501) rotatably connected to one side of one of the support frames (1), an extension rod (502) is inserted through the inner wall of the first connecting cylinder (501), and a second connecting cylinder (503) is fixedly provided at one end of the extension rod (502).

5. A precise weighing device for household appliances using gravity sensing according to claim 4, characterized in that: A limiting handle (504) is fixedly provided at one end of the second connecting cylinder (503), and a third spring (505) is fixedly installed at the edge of one end of the first connecting cylinder (501), and one end of the third spring (505) is fixedly connected to the edge of one end of the second connecting cylinder (503).

6. A precise weighing device for household appliances using gravity sensing as described in claim 1, characterized in that: One of the support frames (1) has a fifth groove (506) at both ends of its bottom, and the other support frame (1) has an extension strip (507) fixed at the lower edge of both ends, and the outer wall of the two extension strips (507) is slidably connected to the inner wall of the two fifth grooves (506).

7. A precise weighing device for household appliances using gravity sensing according to claim 1, characterized in that: Rollers (6) are rotatably connected to both sides of the bottom of the two support frames (1), and fixing bolts (7) are threaded to one side of the two support frames (1). The outer wall of one end of the two fixing bolts (7) passes through the inner wall of the two support frames (1) and contacts one side of the two rollers (6).

8. A precise weighing device for household appliances using gravity sensing according to claim 1, characterized in that: One of the support frames (1) has a control panel installed on one side of its outer wall, and the pressure sensor (407) and the electric push rod (412) are electrically connected to an external power source through the control panel.

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