Knob capable of avoiding loosening and stove

Abstract

The utility model provides an anti-loosening knob, which comprises a knob and a base, and is characterized in that the knob is internally provided with a first groove; the first groove is used for being connected with an external stove fire control shaft, the first groove comprises a main groove part and an abutting groove part, a communication opening is formed between the abutting groove part and the main groove part, the main groove part is used for being connected with the external stove fire control shaft, an arc-shaped metal sheet is arranged in the abutting groove part, and the arc-shaped metal sheet is arranged in the abutting groove part. The elastic cambered surface of the arc-shaped metal sheet abuts against the stove fire control shaft through the communicating opening, and the elastic cambered surface provides horizontal acting force for a shaft body of the stove fire control shaft through deformation. And the arc-shaped metal sheet is arranged, so that the knob and the stove fire control shaft are combined more tightly. The stove is mainly used in the field of stoves.

Description

Technical Field

[0001] The technical solution relates to the field of stoves, and specifically to a knob and stove that can prevent loosening. Background Art

[0002] The knobs used in existing stoves are relatively simple in structure design. The parts where the shaft contacts will gradually age over time, which will cause a gap between the shaft and the knob, causing the knob to loosen and fall off. Due to material limitations, this aging is inevitable, so a new design is needed to improve this problem. Utility Model Content

[0003] The utility model provides a knob and a stove which can prevent loosening, so as to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0004] A knob for preventing loosening is provided, characterized in that it comprises a knob and a base, a first groove is arranged inside the knob; the first groove is used to access an external stove fire control shaft, the first groove comprises a main groove portion and an abutting groove portion, a connecting port is provided between the abutting groove portion and the main groove portion, the main groove portion is used to access an external stove fire control shaft, an arc-shaped metal sheet is installed inside the abutting groove portion, an elastic arc surface of the arc-shaped metal sheet abuts against the stove fire control shaft through the connecting port, and the elastic arc surface provides a horizontal force to the shaft body of the stove fire control shaft through deformation.

[0005] Furthermore, a circuit board installation area is provided inside the knob, the control circuit board is arranged in the circuit board installation area, and the knob is provided with a light-transmitting window; the control circuit board is used to emit an indication light according to the rotation of the knob, and the indication light passes through the light-transmitting window.

[0006] Furthermore, it also includes a frosted light-transmitting cover, which covers the light-transmitting window.

[0007] Furthermore, a battery placement slot is provided in the knob, and the battery placement slot is used to place dry batteries, and the dry batteries are used to provide power to the control circuit board.

[0008] Furthermore, the control circuit board includes: a substrate and a control circuit, the control circuit is arranged on the substrate, and the dry battery is connected to the control circuit board through a wire; the control circuit includes: an angle switch, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a first Hall switch, a second Hall switch, a first MOS tube, a second MOS tube, a first LED light group and a second LED light group, the first LED light group and the second LED light group are respectively composed of four light-emitting diodes in parallel, one end of the dry battery is connected to one end of the angle switch, the other end of the angle switch is connected to one end of the first resistor, one end of the fifth resistor, one end of the first LED light group and one end of the second LED light group, the other end of the first resistor is connected to the input end of the first Hall switch, and the output end of the first Hall switch is connected to the one end of the first Hall switch is connected, the other end of the second resistor is connected to one end of the third resistor and the gate of the first MOS tube, the other end of the first LED lamp group is connected to one end of the fourth resistor, the other end of the fourth resistor is connected to the drain of the first MOS tube, the other end of the fifth resistor is connected to the input end of the second Hall switch, the output end of the second Hall switch is connected to one end of the sixth resistor, the other end of the sixth resistor is connected to one end of the seventh resistor and the gate of the second MOS tube, the other end of the second LED lamp group is connected to one end of the eighth resistor, the other end of the eighth resistor is connected to the drain of the second MOS tube, the ground end of the first Hall switch, the ground end of the second Hall switch, the other end of the third resistor, the other end of the seventh resistor, the source of the first MOS tube and the source of the second MOS tube are all connected to the ground; the first Hall switch and the second Hall switch are turned on when a magnetic field is detected.

[0009] Furthermore, a circuit board positioning hole is provided on the control circuit board, and the circuit board positioning hole is used to fix the control circuit board in the circuit board installation area.

[0010] Furthermore, a magnet placement groove is provided in the base, and the magnet placement groove is used to place a magnet, and the magnet is used to provide a magnetic field to the Hall switch.

[0011] Furthermore, a second groove is provided in the base, and the second groove is used for connecting to an external stove fire control shaft.

[0012] Furthermore, a base positioning hole is provided in the base, and the base positioning hole is used to fix the base on the stove.

[0013] A stove is also provided, comprising the stove and any one of the above described knobs for preventing loosening.

[0014] The beneficial effect of the utility model is that by adding an arc-shaped metal sheet inside the abutting groove part, the elastic arc surface deformation of the arc-shaped metal sheet provides a horizontal force to the shaft body of the stove fire control shaft, so that the knob and the stove fire control shaft fit more closely, solving the problem of the knob loosening caused by the aging of the rotating shaft material in the related art. Compared with the prior art, the present application has a simple and reliable structure and is more durable. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the technical solution of the utility model and constitute a part of the specification. Together with the embodiments of the utility model, they are used to explain the technical solution of the utility model and do not constitute a limitation on the technical solution of the utility model.

[0016] Figure 1 It is a schematic diagram of the overall structure of the knob;

[0017] Figure 2 This is a schematic diagram of the internal structure of the knob;

[0018] Figure 3 This is a schematic diagram of the control circuit board structure;

[0019] Figure 4 This is a schematic diagram of the internal structure of the base;

[0020] Figure 5 This is a control circuit connection diagram. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0022] refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 . Figure 1 This is a schematic diagram of the overall structure of the knob. Figure 2 This is a schematic diagram of the internal structure of the knob. Figure 3 Schematic diagram of the control circuit board structure, Figure 4 This is a schematic diagram of the internal structure of the base. Figure 5 It is a control circuit connection diagram.

[0023] A knob for preventing loosening is provided, comprising a knob 100 and a base 200, wherein a first groove is arranged inside the knob 100. The first groove is used to access an external stove fire control shaft, and the first groove comprises a main groove portion 110 and an abutting groove portion 120, wherein a communication port is provided between the abutting groove portion 120 and the main groove portion 110, and the main groove portion 110 is used to access an external stove fire control shaft.

[0024] In order to prevent the knob from loosening, in some further specific examples, an arc-shaped metal sheet is installed inside the abutting groove portion 110, and the elastic arc surface of the arc-shaped metal sheet abuts against the stove fire control shaft through the connecting port, and the elastic arc surface provides horizontal force to the shaft body of the stove fire control shaft through deformation.

[0025] In order to make the knob emit light of different colors when it is turned, in some further specific examples, a control circuit board is provided in the knob 100, and the control circuit board includes: a substrate 140 and a control circuit, the control circuit is provided on the substrate 140, and the dry cell 150 is connected to the control circuit board via a wire. The control circuit includes an angle switch S1, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a first Hall switch H1, a second Hall switch H2, a first MOS tube M1, a second MOS tube M2, a first LED light group D1 and a second LED light group D2. The first LED light group D1 and the second LED light group D2 are respectively composed of four light-emitting diodes connected in parallel. One end of the dry battery 150 is connected to one end of the angle switch S1, and the other end of the angle switch S1 is connected to one end of the first resistor R1, one end of the fifth resistor R5, one end of the first LED light group D1 and one end of the second LED light group D2. The other end of the first resistor R1 is connected to the input end of the first Hall switch H1, and the output end of the first Hall switch H1 is connected to one end of the second resistor R2. The other end of R2 is connected to one end of the third resistor R3 and the gate of the first MOS tube M1, the other end of the first LED lamp group D1 is connected to one end of the fourth resistor R4, the other end of the fourth resistor R4 is connected to the drain of the first MOS tube M1, the other end of the fifth resistor R5 is connected to the input end of the second Hall switch H2, the output end of the second Hall switch H2 is connected to one end of the sixth resistor R6, the other end of the sixth resistor R6 is connected to one end of the seventh resistor R7 and the gate of the second MOS tube M2, the other end of the second LED lamp group D2 is connected to one end of the eighth resistor R8, the other end of the eighth resistor R8 is connected to the drain of the second MOS tube M2, the ground end of the first Hall switch H1, the ground end of the second Hall switch H2, the other end of the third resistor R3, the other end of the seventh resistor R7, the source of the first MOS tube M1 and the source of the second MOS tube M2 are all connected to the ground. A magnet placement groove 210 is provided in the base 200, and the magnet placement groove 210 is used to place a magnet, and the magnet is used to provide a magnetic field to the Hall switch. When the Hall switch rotates to different angles, the Hall switch that senses the magnetic field signal is also different, thereby controlling different LED light groups to emit light.

[0026] In order to solve the problem of power consumption of the Hall switch in standby mode, in some further specific examples, an angle switch S1 is added to the control circuit. When in a stationary state, the angle switch S1 is in an open circuit state, and the control circuit does not work. When it rotates to a certain angle, the angle switch S1 detects centrifugal force, the switch returns to the on state, and the control circuit starts to work.

[0027] The utility model also provides a stove, comprising the stove and any one of the above-mentioned knobs for preventing loosening.

[0028] Although the description of the present application has been quite detailed and particularly describes the embodiments, it is not intended to be limited to any of these details or embodiments or any particular embodiment, but should be regarded as providing a broad possible interpretation of these claims by reference to the attached claims, taking into account the prior art, so as to effectively cover the intended scope of the present application. In addition, the above description of the present application is based on the embodiments foreseeable by the inventor, and its purpose is to provide a useful description, and those non-substantial changes to the present application that have not yet been foreseen may still represent equivalent changes to the present application.

Claims

1. A knob for preventing loosening, characterized in that: It includes a knob and a base, and a first groove is arranged inside the knob; the first groove is used to connect to an external stove fire control shaft, the first groove includes a main groove part and an abutting groove part, a connecting port is provided between the abutting groove part and the main groove part, the main groove part is used to connect to an external stove fire control shaft, an arc-shaped metal sheet is installed inside the abutting groove part, an elastic arc surface of the arc-shaped metal sheet abuts against the stove fire control shaft through the connecting port, and the elastic arc surface provides a horizontal force to the shaft body of the stove fire control shaft through deformation.

2. A knob for preventing loosening according to claim 1, characterized in that: Also includes: A control circuit board, a circuit board installation area is provided inside the knob, the control circuit board is arranged in the circuit board installation area, and the knob is provided with a light-transmitting window; the control circuit board is used to emit an indication light according to the rotation of the knob, and the indication light passes through the light-transmitting window.

3. A knob for preventing loosening according to claim 2, characterized in that: Also included is a frosted light-transmitting cover, which covers the light-transmitting window.

4. A knob for preventing loosening according to claim 2, characterized in that: A battery placement slot is provided in the knob, and the battery placement slot is used to place dry batteries, and the dry batteries are used to provide electrical energy to the control circuit board.

5. A knob for preventing loosening according to claim 4, characterized in that: The control circuit board includes: a substrate and a control circuit, the control circuit is arranged on the substrate, and the dry battery is connected to the control circuit board through a wire; the control circuit includes: an angle switch, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a first Hall switch, a second Hall switch, a first MOS tube, a second MOS tube, a first LED light group and a second LED light group, the first LED light group and the second LED light group are respectively composed of four light-emitting diodes in parallel, one end of the dry battery is connected to one end of the angle switch, the other end of the angle switch is connected to one end of the first resistor, one end of the fifth resistor, one end of the first LED light group and one end of the second LED light group, the other end of the first resistor is connected to the input end of the first Hall switch, and the output end of the first Hall switch is connected to one end of the second resistor The first LED light group is connected to the first Hall switch, the other end of the second resistor is connected to one end of the third resistor and the gate of the first MOS tube, the other end of the first LED light group is connected to one end of the fourth resistor, the other end of the fourth resistor is connected to the drain of the first MOS tube, the other end of the fifth resistor is connected to the input end of the second Hall switch, the output end of the second Hall switch is connected to one end of the sixth resistor, the other end of the sixth resistor is connected to one end of the seventh resistor and the gate of the second MOS tube, the other end of the second LED light group is connected to one end of the eighth resistor, the other end of the eighth resistor is connected to the drain of the second MOS tube, the ground end of the first Hall switch, the ground end of the second Hall switch, the other end of the third resistor, the other end of the seventh resistor, the source of the first MOS tube and the source of the second MOS tube are all connected to the ground; the first Hall switch and the second Hall switch are turned on when a magnetic field is detected.

6. The knob for preventing loosening according to claim 5, characterized in that: The control circuit board is provided with a circuit board positioning hole, and the circuit board positioning hole is used to fix the control circuit board in the circuit board installation area.

7. The knob for preventing loosening according to claim 1, characterized in that: A magnet placement groove is provided in the base, and the magnet placement groove is used to place a magnet, and the magnet is used to provide a magnetic field to the Hall switch.

8. The knob for preventing loosening according to claim 1, characterized in that: A second groove is arranged in the base, and the second groove is used for connecting an external stove fire control shaft.

9. The knob for preventing loosening according to claim 1, characterized in that: A base positioning hole is arranged in the base, and the base positioning hole is used to fix the base on the stove.

10. A stove, characterized in that: The invention comprises a stove and the knob for preventing loosening according to any one of claims 1 to 9.

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