Weighing device and gas stove

Abstract

The utility model provides a weighing device and a gas stove, and relates to the technical field of stoves, the weighing device provided by the utility model comprises a weighing disc, an elastic support column, a gravity sensor, a trigger module and a lifting mechanism, the top end of the elastic supporting column supports the weighing disc, and the lower end of the elastic supporting column is connected with the gravity sensor. A first triggering structure is arranged on the elastic supporting column; a second trigger structure is arranged on the trigger module, and the second trigger structure is located below the first trigger structure; the lifting mechanism is located below the weighing disc and connected with the trigger module, and the trigger module is used for controlling the lifting mechanism to lift the weighing disc when the second trigger structure is triggered.

Description

Technical Field

[0001] The utility model relates to the technical field of cooking stoves, 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 gauge deformation 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 gauge deformation is too large or exceeds the range, the gravity sensor will be damaged. Summary 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, elastic support columns, a gravity sensor, a trigger module and a lifting mechanism;

[0006] The top of the elastic support column supports the weighing pan, and the lower end of the elastic support column is connected with the gravity sensor; a first trigger structure is arranged on the elastic support column.

[0007] A second trigger structure is arranged on the trigger module, and the second trigger structure is located below the first trigger structure;

[0008] The lifting mechanism is located below the weighing pan, the lifting mechanism is connected with the trigger module, and the trigger module is used to control the lifting mechanism to lift the weighing pan when the second trigger structure is triggered.

[0009] Furthermore, the number of the elastic support columns and the number of the gravity sensors are both multiple and correspond to each other one by one.

[0010] Furthermore, 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 with the lower end of the upper column, and the lower end of the buffer spring is connected with the upper end of the lower column;

[0011] The first trigger structure is arranged on the upper column.

[0012] Furthermore, the trigger module includes a bracket and a lever, the lever includes a first end and a second end which are oppositely arranged, the lever is rotatably connected with the bracket; the first end forms the second trigger structure;

[0013] The lifting mechanism includes a trigger switch, and the second end is located below the trigger switch, so that after the first trigger structure presses down the second trigger structure, the second end abuts against the trigger switch.

[0014] Furthermore, a return spring is arranged between the second end and the bracket, and the return spring is used to make the second end have a tendency to move downward.

[0015] Furthermore, the weight of the part of the lever from the first end to the fulcrum is lower than the weight of the part of the lever from the second end to the fulcrum, so that after the first trigger structure is separated from the second trigger structure, the lever returns to the balanced position, and at the balanced position, the second end is separated from the trigger switch.

[0016] Furthermore, the lifting mechanism includes a push rod motor.

[0017] Furthermore, an alarm is further included, and the alarm is used to send an alarm message when the second trigger structure is triggered.

[0018] Furthermore, the alarm message includes a sound prompt message and / or a light prompt message.

[0019] In a second aspect, a gas stove provided by the present invention includes the above-mentioned weighing device.

[0020] The present invention at least has the following advantages or beneficial effects:

[0021] The weighing device provided by the present invention includes: a weighing pan, an elastic support column, a gravity sensor, a trigger module and a lifting mechanism; the top end of the elastic support column supports the weighing pan, and the lower end of the elastic support column is connected to the gravity sensor; a first trigger structure is arranged on the elastic support column; a second trigger structure is arranged on the trigger module, and the second trigger structure is located below the first trigger structure; the lifting mechanism is located below the weighing pan, and the lifting mechanism is connected to the trigger module, and the trigger module is used to control the lifting mechanism to lift the weighing pan when the second trigger structure is triggered.

[0022] 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 column, the first trigger structure on the load-bearing column moves downward in the vertical direction, and thus has a certain weighing limit; and the weight information is obtained through the induction of the gravity sensor below. When the weighing is overloaded, the first trigger structure descends and triggers the second trigger structure, and the lifting mechanism starts to lift the weighing pan, and then the elastic support column rises. This design has a simple structure and is easy to install, and can effectively prevent damage to the internal sensor of the weighing device caused by overload, resulting in unnecessary losses.

[0023] The gas stove provided by the present invention includes the above-mentioned weighing device. Because the gas stove provided by the present invention incorporates the above-mentioned weighing device, the gas stove provided by the present invention also has the advantages of the weighing device. Brief Description of the Drawings

[0024] In order to more clearly illustrate the specific embodiments of the present invention 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 invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0025] Figure 1 Schematic diagram of the weighing device provided by the embodiment of the present invention;

[0026] Figure 2 Schematic diagram of the elastic support column of the weighing device provided by the embodiment of the present invention;

[0027] Figure 3 Schematic diagram of the gas stove provided by the embodiment of the present invention.

[0028] Reference numerals: 1 - weighing pan; 2 - upper column; 3 - buffer spring; 4 - lower column; 5 - gravity sensor; 6 - lever; 7 - bracket; 8 - return spring; 9 - push rod motor; 10 - trigger switch; 11 - pressing plate; 12 - pot rack; 13 - display; 14 - chassis. Detailed Description of the Embodiments

[0029] In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are some, but not all, of the embodiments of the present invention. Usually, the components of the embodiments of the present invention described and illustrated in the drawings here can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the present invention to be protected, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0031] It should be noted that: similar reference numerals and letters represent 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.

[0032] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "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 the present 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 should not be construed as a limitation to the present utility model. In addition, terms such as "first", "second", "third", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0033] 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.

[0034] 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", "coupled" 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 it 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 situations.

[0035] As Figure 1 - Figure 3 As shown, the weighing device provided by the present utility model includes: a weighing pan 1, elastic support columns, a gravity sensor 5, a trigger module, and a lifting mechanism. The pot rack 12 is placed on the weighing pan 1.

[0036] The elastic support columns may include an upper column 2, a buffer spring 3, and a lower column 4 that are sequentially connected in the vertical direction. The first trigger structure is provided on the upper column 2. The upper end of the buffer spring 3 is fixedly connected to the lower end of the upper column 2, and the lower end of the buffer spring 3 is fixedly connected to the upper end of the lower column 4. The lower column 4 presses on the gravity sensor 5. After a heavy object is placed on the weighing pan 1, the upper column 2 moves downward, thereby compressing and buffering the buffer spring 3 and enabling it to have a certain weighing limit.

[0037] The weighing device further includes a mounting plate. The gravity sensor 5 is connected to the lower surface of the mounting plate, and the lower column 4 passes through the mounting plate from above the mounting plate and abuts against the gravity sensor 5.

[0038] The top end of the elastic support column supports the weighing pan 1, and the lower end of the elastic support column is connected to the gravity sensor 5. The weighing device further includes a display screen connected to the gravity sensor 5, which can display weight information.

[0039] A first trigger structure is provided on the elastic support column. In this embodiment, the first trigger structure includes a pressing piece. One end of the pressing piece is sleeved on the side wall of the step at the lower end of the upper column 2, and the other end abuts against the upper surface of the buffer spring 3.

[0040] A second trigger structure is provided on the trigger module. The second trigger structure is located below the first trigger structure, and the distance between the two is related to the deformation threshold in the gravity sensor 5.

[0041] The lifting mechanism is located below the weighing pan 1. The lifting mechanism is connected to the trigger module. The trigger module is used to control the lifting mechanism to lift the weighing pan 1 when the second trigger structure is triggered.

[0042] The lifting mechanism may include a push rod motor 9. The main body of the push rod motor 9 may be fixed on the chassis 14 of the gas stove. In the natural state, there is a certain distance between the push rod and the weighing pan 1 above it.

[0043] In other implementable solutions, the number of elastic support columns and the number of gravity sensors 5 may both be one. The pressure received by the elastic support column is directly transmitted to the gravity sensor 5 below it, and the volume of the weighing device is smaller.

[0044] In this embodiment, the number of elastic support columns and the number of gravity sensors 5 are both multiple and correspond one by one. Support positions may be provided at the bottom of the gas stove. The gravity sensors 5 are arranged corresponding to the support positions. Among them, the number of support positions may 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 number of gravity sensors 5 may be N. The N gravity sensors 5 are arranged corresponding to the N support positions one by one. In this way, the weight information of the weighing pan 1 obtained by each gravity sensor 5 can be basically the same. Therefore, the weighing accuracy can be improved.

[0045] The trigger module includes a bracket 7 and a lever 6. The lever 6 includes a first end and a second end arranged oppositely. The lever 6 is rotatably connected to the bracket 7; the first end forms the second trigger structure; the lifting mechanism includes a trigger switch 10. The second end is located below the trigger switch 10, so that after the first trigger structure presses down the second trigger structure, the second end abuts against the trigger switch 10.

[0046] To avoid interference between the lifting mechanism and the elastic support column, the two are arranged at intervals. Therefore, a bracket 7 and a lever 6 are arranged between the two. The power is transmitted through the lever 6. After the first trigger structure moves downward, the first end is squeezed downward, the lever 6 loses balance, the second end moves upward and squeezes the trigger switch 10, and the lifting mechanism starts to lift the weighing pan 1.

[0047] In this embodiment, a return spring 8 is provided between the second end and the bracket 7. The return spring 8 is used to make the second end tend to move downward. One end of the return spring 8 is inclinedly connected to the bracket, and the other end is inclinedly connected to the second end of the lever.

[0048] In the absence of a heavy object, the lever 6 is in a horizontal state. When overloaded, the second end moves upward to contact the trigger switch 10. After the heavy object on the pot rack 12 is removed, the return spring 8 can drive the second end to move downward to the horizontal state, preparing for the next overload.

[0049] In another implementable solution, the return spring 8 may not be used, and the lever 6 is reset only by gravity. Specifically, the weight of the part of the lever 6 from the first end to the fulcrum is lower than the weight of the part of the lever 6 from the second end to the fulcrum, so that after the first trigger structure is separated from the second trigger structure, the lever 6 returns to the equilibrium position, and at the equilibrium position, the second end is separated from the trigger switch 10.

[0050] The left part of the lever 6 is heavier, while the right part is lighter. In the natural state, the lever 6 is in a horizontal state. When overloaded, the second end moves upward to contact the trigger switch 10. After the heavy object on the pot rack 12 is removed, the second end automatically moves downward to the horizontal state under the action of gravity, preparing for the next overload.

[0051] The weighing device further includes an alarm, which is used to send an alarm message when the second trigger structure is triggered. 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 send a prompt message through a light. For example, the color or flashing frequency of the indicator light is used to send a prompt message (for example, the indicator light emits a red light, or the indicator light flashes at a faster frequency), so that the user can timely know that there is a problem with the heavy object currently placed.

[0052] Compared with the prior art, for the weighing device, when a heavy object is placed on the weighing pan 1, it is supported by the elastic support columns and forces are applied. As a result, the pressing plate 11 moves downward in the vertical direction, further compressing the buffer spring 3 to buffer the force, and thus it has a certain weighing limit. After being sensed by the gravity sensor 5 below, an electrical signal is transmitted to the control board and directly displayed through the display 13. When overloading occurs during weighing, the upper column 2 descends, driving the pressing plate 11 to slide downward, and then pressing down the lever 6 on the bracket 7, causing its right side to lower and its left side to lift, and then touching the trigger switch 10 beside the push rod motor 9, the display light lights up for prompt or the buzzer sounds. Moreover, a signal is output by the control board controlled by programming to drive the push rod motor 9 to extend and drive, jacking up the load-bearing pan, and then the upper column 2 rises. This design has a simple structure and is convenient to install, and can effectively prevent damage to the internal sensor of the scale caused by overload, avoiding unnecessary losses.

[0053] 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.

[0054] 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 recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions 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 trigger module and a lifting mechanism; The top end of the elastic support column supports the weighing plate (1), and the lower end of the elastic support column is connected to the gravity sensor (5); a first trigger structure is provided on the elastic support column; The trigger module is provided with a second trigger structure, and the second trigger structure is located below the first trigger structure; The lifting mechanism is located below the weighing pan (1), and the lifting mechanism is connected to the trigger module. The trigger module is used to control the lifting mechanism to lift the weighing pan (1) when the second trigger structure is triggered.

2. 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.

3. The weighing device according to claim 1, characterized in that: The elastic support column comprises an upper column (2), a buffer spring (3) and a lower column (4) which are connected in sequence along 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 first trigger structure is arranged on the upper column (2).

4. The weighing device according to claim 1, characterized in that: The trigger module comprises a bracket (7) and a lever (6), the lever (6) comprises a first end and a second end arranged opposite to each other, the lever (6) is rotatably connected to the bracket (7); the first end forms the second trigger structure; The lifting mechanism comprises a trigger switch (10), and the second end is located below the trigger switch (10), so that after the first trigger structure presses down the second trigger structure, the second end abuts against the trigger switch (10).

5. The weighing device according to claim 4, characterized in that: A return spring (8) is provided between the second end and the bracket (7), and the return spring (8) is used to make the second end have a tendency to move downward.

6. The weighing device according to claim 4, characterized in that: The weight of the lever (6) from the first end to the fulcrum is lower than the weight of the lever (6) from the second end to the fulcrum, so that after the first trigger structure is separated from the second trigger structure, the lever (6) returns to a balanced position, and at the balanced position, the second end is separated from the trigger switch (10).

7. The weighing device according to any one of claims 1 to 6, characterized in that: The lifting mechanism comprises a push rod motor (9).

8. The weighing device according to any one of claims 1 to 6, characterized in that: It also includes an alarm, which is used to send out an alarm message when the second trigger structure is triggered.

9. The weighing device according to claim 8, characterized in that: The alarm information includes sound prompt information and / or light prompt information.

10. A gas stove, characterized in that: A weighing device comprising any one of claims 1 to 9.

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