Weighing device and gas stove
By designing a weighing device including an elastic support column and a limit structure on the gas stove, the problem of easy damage to the weighing device in the prior art is solved, and effective protection of the gravity sensor and stability of the device are achieved.
Patent Information
- Application Number
- CN202422175826.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-04
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-09-04
AI Technical Summary
The weighing devices on existing gas stoves are prone to damage under overload conditions, resulting in damage to the gravity sensor.
A weighing device is designed, including a weighing disc, elastic support column, gravity sensor, limit structure and mounting plate. Through the buffering effect of the elastic support column and the stop function of the limit structure, the gravity sensor will be prevented from falling during overload and protect it from damage.
It effectively prevents damage to the gravity sensor by overload, ensures the stability and reliability of the device, and avoids unnecessary losses.
Smart Images
Figure CN222978922U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of cookers, in particular to a weighing device and a gas stove. Background Art
[0002] In the prior art, a weighing module is arranged on a gas stove, and whether dry burning occurs in the pot is judged by the change of the weight of the pot, so as to cut off the fire source in time. The weighing module usually converts the strain of the strain gauge caused by the weight of an object into a resistance value, and reflects the weight of the object by collecting current or voltage information.
[0003] However, in the actual working process, if the strain of the strain gauge is too large or exceeds the range, the gravity sensor will be damaged. Content of the Utility Model
[0004] The purpose of the utility model is to provide a weighing device and a gas stove, so as to alleviate the technical problem that the gravity sensor of the weighing device on the existing gas stove is easily damaged after overloading.
[0005] In a first aspect, a weighing device provided by the utility model includes: a weighing pan, an elastic support column, a gravity sensor, a limiting structure and a mounting plate; the gravity sensor is connected to the mounting plate;
[0006] The elastic support column includes an upper column, a buffer spring and a lower column which are sequentially connected in the vertical direction. The upper end of the buffer spring is connected to the lower end of the upper column, and the lower end of the buffer spring is connected to the upper end of the lower column; the top end of the upper column supports the weighing pan, and the lower end of the lower column is connected to the gravity sensor;
[0007] A limiting member is arranged on the upper column; the limiting structure is connected to the mounting plate and is located below the limiting member. When the weighing pan is not loaded, there is a vertical gap between the limiting member and the limiting structure, and the limiting structure is used for stopping the lower column when it descends to a preset height position to prevent it from continuing to move downward.
[0008] Further, the gravity sensor is connected to the lower surface of the mounting plate, and a through hole penetrating the upper and lower surfaces of the mounting plate is arranged on the mounting plate, and the lower column penetrates through the through hole and abuts against the gravity sensor.
[0009] Further, a limiting column coaxial with the upper column is arranged on the lower end surface of the upper column, and the diameter of the limiting column is smaller than the diameter of the lower end surface of the upper column;
[0010] The upper end of the buffer spring is sleeved outside the limiting column and abuts against the lower end surface of the upper column.
[0011] Further, a mounting hole is arranged on the limiting member, the mounting hole is sleeved on the limiting column, the lower surface of the limiting member abuts against the upper end of the buffer spring, and the upper surface of the limiting member abuts against the lower end surface of the upper column.
[0012] Further, the limiting structure includes a cylinder body sleeved outside the lower column, and the upper port of the cylinder body is used to limit the limiting member.
[0013] Further, the weighing device further includes an alarm. Contact switch assemblies are correspondingly arranged on the limiting member and the limiting structure, and the contact switch assemblies are connected to the alarm, so that after the limiting member contacts the limiting structure, the alarm sends out an alarm message.
[0014] Further, the alarm message includes a sound prompt message and / or a light prompt message.
[0015] Further, the number of elastic support columns and the number of gravity sensors are both multiple and correspond one by one.
[0016] Further, a limiting member is arranged on each upper column, and a limiting structure is arranged below each limiting member.
[0017] In a second aspect, a gas stove provided by the present utility model includes the above-mentioned weighing device.
[0018] The present utility model at least has the following advantages or beneficial effects:
[0019] The weighing device provided by the present utility model includes: a weighing pan, elastic support columns, gravity sensors, a limiting structure and a mounting plate; the gravity sensors are connected to the mounting plate; the elastic support columns include an upper column, a buffer spring and a lower column connected in sequence vertically, the upper end of the buffer spring is connected to the lower end of the upper column, and the lower end of the buffer spring is connected to the upper end of the lower column; the top of the upper column supports the weighing pan, and the lower end of the lower column is connected to the gravity sensor; a limiting member is arranged on the upper column; the limiting structure is connected to the mounting plate and is located below the limiting member. When the weighing pan is not loaded, there is a vertical gap between the limiting member and the limiting structure, and the limiting structure is used to stop the lower column when it descends to a preset height position to prevent it from continuing to move downward.
[0020] When using the gas stove with this weighing device, by placing a heavy object on the weighing pan, through the support and force of the elastic support columns, the upper column moves downward in the vertical direction, and then the buffer spring is compressed and stressed to buffer, so that it has a certain weighing limit. When the weighing is overloaded, that is, when the limiting member on the upper column descends and abuts against the limiting structure, the upper column cannot continue to descend, the pressure of the lower column on the gravity sensor reaches the maximum and will not increase any more. This structure can ensure that the downward stroke range of the upper column is fixed and will not damage the gravity sensor after the overload heavy object is loaded on the weighing pan. This design has a simple structure and is easy to install, and can effectively prevent the damage of the gravity sensor caused by overload and cause unnecessary losses.
[0021] The gas stove provided by the present utility model includes the above-mentioned weighing device. Since the gas stove provided by the present utility model incorporates the above-mentioned weighing device, the gas stove provided by the present utility model also has the advantages of the weighing device. Brief Description of the Drawings
[0022] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0023] Figure 1 Schematic diagram of the weighing device provided in Embodiment 1 of the present utility model;
[0024] Figure 2 Schematic diagram of the weighing device provided in Embodiment 2 of the present utility model;
[0025] Figure 3 Schematic diagram of the gas stove provided in the embodiment of the present utility model.
[0026] Reference numerals: 1 - weighing pan; 2 - upper column; 3 - buffer spring; 4 - lower column; 5 - gravity sensor; 6 - limiting structure; 7 - limiting member; 8 - mounting plate; 9 - surrounding edge; 12 - pot rack; 13 - display screen; 14 - chassis. Detailed Description of the Embodiments
[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Usually, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.
[0028] Therefore, the following detailed description of the embodiments of the present utility model provided in the drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.
[0029] It should be noted that: similar reference numerals and letters indicate similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.
[0030] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "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 this utility model is customarily placed during use. It is only for the convenience of describing the present utility model 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 cannot be construed as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used for differential description and cannot be construed as indicating or implying relative importance.
[0031] In addition, terms such as "horizontal" and "vertical" do not mean that the components are required to be absolutely horizontal or hanging vertically, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.
[0032] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0033] Embodiment 1
[0034] As Figure 1 and Figure 2 As shown, the weighing device provided by the present utility model includes: a weighing pan 1, elastic support columns, a gravity sensor 5, a limiting structure 6, and a mounting plate 8. The pot rack 12 is placed on the weighing pan 1, and the cooking pot is placed on the pot rack 12. Among them, the mounting plate 8 can be installed on the gas stove chassis 14, or the chassis 14 of the gas stove forms the above-mentioned mounting plate 8.
[0035] The elastic support columns include an upper column 2, a buffer spring 3, and a lower column 4 that are sequentially connected in the vertical direction. The upper end of the buffer spring 3 is connected to the lower end of the upper column 2, and the lower end of the buffer spring 3 is connected to the upper end of the lower column 4. The top of the upper column 2 supports the weighing pan 1, and the lower end of the lower column 4 is connected to the gravity sensor 5. The gravity sensor 5 can be connected to the lower surface of the mounting plate 8, and the lower column 4 passes through the mounting plate 8 from above the mounting plate 8 and abuts against the gravity sensor 5.
[0036] The pressure exerted by the heavy object on the weighing pan 1 can be transmitted to the gravity sensor 5 through the elastic support columns, so as to obtain the weight information. The weighing device further includes a display screen 13 connected to the gravity sensor 5, which can display the weight information.
[0037] A limiting member 7 is provided on the upper column 2, and the upper column 2 and the limiting member 7 are relatively fixed. The limiting structure 6 is connected to the mounting plate 8, and the two are relatively fixed. The limiting structure 6 is located below the limiting member 7. When the weighing pan 1 is not loaded, there is a vertical gap between the limiting member 7 and the limiting structure 6, and the vertical gap is the maximum range within which the limiting member 7 can move. The limiting structure 6 is used to stop the lower column 4 when it descends to a preset height position to prevent it from continuing to move downward. Among them, the preset height position is related to the maximum load-bearing weight of the height sensor.
[0038] When using the gas stove with this weighing device, by placing the heavy object on the weighing pan 1, through the elastic support columns for force bearing, the upper column 2 moves downward in the vertical direction, and then the buffer spring 3 is compressed to bear the force for buffering, so that it has a certain weighing limit. When the weighing is overloaded, that is, when the limiting member 7 on the upper column 2 descends and abuts against the limiting structure 6, the upper column 2 cannot continue to descend, and the pressure of the lower column 4 on the gravity sensor 5 reaches the maximum and will not increase any more. This structure can ensure that the downward stroke range of the upper column 2 is fixed and will not damage the gravity sensor 5 after the overloaded heavy object is loaded on the weighing pan 1. This design structure is simple and easy to install, and can effectively prevent the damage of the gravity sensor 5 caused by overload and cause unnecessary losses.
[0039] A limiting column coaxial with the upper column 2 is provided on the lower end surface of the upper column 2, and the diameter of the limiting column is smaller than the diameter of the lower end surface of the upper column 2; the upper end of the buffer spring 3 is sleeved outside the limiting column and abuts against the lower end surface of the upper column 2.
[0040] A stepped surface is formed between the upper column 2 with different thicknesses and the limiting column. The upper end of the buffer spring 3 is sleeved on the limiting column and abuts against the lower end surface of the upper column 2, so as to prevent the spring from detaching from the limiting column.
[0041] The limiting member 7 is provided with a mounting hole, the mounting hole is sleeved on the limiting column, the lower surface of the limiting member 7 abuts against the upper end of the buffer spring 3, and the upper surface of the limiting member 7 abuts against the lower end surface of the upper column 2.
[0042] The shape of the limiting member 7 is plate-shaped, and it is restricted between the upper column 2 and the buffer spring 3 by the way of up and down extrusion. When the upper column 2 moves downward, it pushes the limiting member 7 to move downward together. In other implementable ways, the limiting member 7 can be an integral structure with the upper column 2.
[0043] The limiting structure 6 includes a cylinder body, the cylinder body is sleeved outside the lower column 4, and the upper port of the cylinder body is used to limit the limiting member 7.
[0044] The diameter of the cylinder body is larger than that of the lower column 4. The cylinder body is sleeved outside the lower column 4. On the one hand, it can function as a stop limiting member 7. On the other hand, it can protect the lower column 4 and reduce the pollution of the lower column 4 by oil stains or dust.
[0045] In other feasible solutions, the number of elastic support columns and the number of gravity sensors 5 can both be one. The pressure received by the elastic support column is directly transmitted to the gravity sensor 5 below it, and the weighing device has a smaller volume.
[0046] In this embodiment, the number of elastic support columns and the number of gravity sensors 5 are both multiple and correspond one by one. A support position can be provided at the bottom of the gas stove, and the gravity sensor 5 is arranged corresponding to the support position. Among them, the support position can be N (N = 1 to 5). The N support positions are respectively arranged corresponding to the N bottom radial peripheries of the pot rack 12. The gravity sensor 5 can be N, and the N gravity sensors 5 are arranged corresponding to the N support positions one by one. In this way, the weight information on the weighing pan 1 obtained by each gravity sensor 5 can be basically the same. Therefore, the weighing accuracy can be improved.
[0047] The weighing device further includes an alarm. A contact switch assembly is correspondingly arranged on the limiting member 7 and the limiting structure 6. The contact switch assembly is connected to the alarm, so that after the limiting member 7 contacts the limiting structure 6, the alarm sends out an alarm message.
[0048] Specifically, the alarm message includes a sound prompt message. For example, "The current weighing is overloaded. To avoid damage to the appliance, please remove the heavy object. Thank you!" It can also be through a light prompt message. For example, the color or blinking frequency of the indicator light is used to send a prompt message (for example, the indicator light emits red light, or the indicator light blinks at a faster frequency), so that the user can know in time that there is a problem with the heavy object currently placed.
[0049] A limiting member 7 is arranged on each upper column 2, and a limiting structure 6 is arranged below each limiting member 7 to provide stable support.
[0050] Embodiment 2
[0051] As Figure 3 shown, the difference from Embodiment 1 is that in this embodiment, a downward-extending and annular skirt 9 is arranged at the edge of the limiting member 7. The skirt 9 is located outside the limiting structure 6. The skirt 9 and the limiting structure 6 cooperate to form a vertical guiding structure, so that the upper column 2 only moves vertically and avoids deviation. At the same time, the skirt 9, the limiting member 7 and the limiting structure 6 completely enclose the lower column 4, so as to better protect the lower column 4 and reduce pollution.
[0052] The gas stove provided by the present utility model includes the above-mentioned weighing device. Since the gas stove provided by the present utility model incorporates the above-mentioned weighing device, the gas stove provided by the present utility model also has the advantages of the weighing device.
[0053] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit it; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present utility model.
Claims
1. A weighing device, characterized in that: include: A weighing plate (1), an elastic support column, a gravity sensor (5), a limiting structure (6) and a mounting plate (8); the gravity sensor (5) is connected to the mounting plate (8); The elastic support column comprises an upper column (2), a buffer spring (3) and a lower column (4) which are connected in sequence in a vertical direction, the upper end of the buffer spring (3) is connected to the lower end of the upper column (2), and the lower end of the buffer spring (3) is connected to the upper end of the lower column (4); the top end of the upper column (2) supports the weighing plate (1), and the lower end of the lower column (4) is connected to the gravity sensor (5); A limiting member (7) is provided on the upper column (2); the limiting structure (6) is connected to the mounting plate (8) and is located below the limiting member (7); when the weighing plate (1) is not loaded, a vertical gap is provided between the limiting member (7) and the limiting structure (6); the limiting structure (6) is used to stop the lower column (4) when it descends to a preset height position, so as to prevent it from continuing to move downward.
2. The weighing device according to claim 1, characterized in that: The gravity sensor (5) is connected to the lower surface of the mounting plate (8), and the mounting plate (8) is provided with a through hole penetrating the upper and lower surfaces thereof, and the lower column (4) is passed through the through hole and abuts against the gravity sensor (5).
3. The weighing device according to claim 2, characterized in that: A limiting column is arranged on the lower end surface of the upper column (2) and is arranged coaxially with the upper column (2), and the diameter of the limiting column is smaller than the diameter of the lower end surface of the upper column (2); The upper end of the buffer spring (3) is sleeved on the outside of the limiting column and abuts against the lower end surface of the upper column (2).
4. The weighing device according to claim 3, characterized in that: The limiting member (7) is provided with a mounting hole, the mounting hole is sleeved on the limiting column, the lower surface of the limiting member (7) abuts against the upper end of the buffer spring (3), and the upper surface of the limiting member (7) abuts against the lower end surface of the upper column (2).
5. The weighing device according to claim 4, characterized in that: The limiting structure (6) comprises a cylinder, the cylinder is sleeved on the outside of the lower column (4), and the upper end of the cylinder is used to limit the limiting member (7).
6. The weighing device according to claim 1, characterized in that: The weighing device also includes an alarm, and contact switch components are correspondingly arranged on the limit member (7) and the limit structure (6), and the contact switch component is connected to the alarm so that after the limit member (7) contacts the limit structure (6), the alarm sends out an alarm message.
7. The weighing device according to claim 6, characterized in that: The alarm information includes sound prompt information and / or light prompt information.
8. The weighing device according to claim 1, characterized in that: The number of the elastic support columns and the number of the gravity sensors (5) are both multiple and correspond one to one.
9. The weighing device according to claim 8, characterized in that: A limiting member (7) is provided on each of the upper columns (2), and a limiting structure (6) is provided below each of the limiting members (7).
10. A gas stove, characterized in that: A weighing device comprising any one of claims 1 to 9.