Knob switch

Abstract

The utility model discloses a knob switch, which comprises a base, a null line pin arranged on the base, a static contact piece electrically connected with the null line pin, a live wire pin arranged on the base and a movable contact piece electrically connected with the live wire pin, and is characterized in that the base is also provided with a rotating frame for driving the movable contact piece to rotate and a driving piece for driving the rotating frame to rotate; a plurality of zero line pins are arranged along the circumferential direction, each zero line pin is provided with a static contact piece, a plurality of movable contact pieces are also arranged corresponding to the static contact pieces, the rotating frame is provided with a conducting strip which rotates synchronously with the rotating frame, the conducting strip is always electrically connected with the live line pin, and the movable contact pieces are arranged on the conducting strip at intervals along the circumferential direction. The conductive frame is provided with a plurality of movable contact pieces corresponding to the static contact pieces, when the conductive frame rotates, the movable contact pieces can rotate to be communicated with the corresponding static contact pieces, the corresponding pins can be controlled to be communicated, switching of a single output line or multiple output lines is controlled, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of switches, in particular to a knob switch. Background Art

[0002] In the prior art, a knob switch includes a live wire pin, a neutral wire pin, a moving contact piece and a stationary contact piece. The stationary contact piece is electrically connected to the neutral wire pin, one end of the moving contact piece is electrically connected to the live wire pin, and the moving contact piece can be moved to cooperate with the stationary contact piece to achieve conductive connection, thereby controlling the power supply. However, the gear position of the existing knob switch is fixed, and it can only control one neutral wire pin to be connected to the live wire pin, or control all the neutral wire pins to be connected to the live wire, and it cannot be switched relatively, so there are limitations when using it. Summary of the invention

[0003] Purpose of the utility model: In order to overcome the defects of the prior art, the utility model provides a knob switch, which adopts a conductive frame, and a plurality of movable contact pieces are arranged on the conductive frame corresponding to the static contact pieces. When the conductive frame rotates, the movable contact piece can be rotated to be connected with the corresponding static contact piece, so as to control the corresponding pin to be connected, thereby controlling the switching of a single output line or multiple output lines, and the practicability is relatively strong.

[0004] The utility model discloses a knob switch, comprising a base, a neutral pin arranged on the base, a static contact piece electrically connected to the neutral pin, a live pin arranged on the base, and a moving contact piece electrically connected to the live pin. The base is also provided with a rotating frame for driving the moving contact piece to rotate and a driving member for driving the rotating frame to rotate. The utility model is characterized in that: a plurality of neutral pins are arranged along the circumferential direction, each neutral pin is provided with a static contact piece, a plurality of moving contacts are also arranged corresponding to the static contact pieces, and a conductive sheet rotating synchronously with the neutral pin is provided on the rotating frame, the conductive sheet is always electrically connected to the live pin, and the moving contact pieces are arranged on the conductive sheet at intervals along the circumferential direction.

[0005] By adopting the above technical solution, when in use, the rotating frame is driven to rotate by the driving member, at this time the conductive sheet is connected to the live wire pin, and at the same time, the electrical connection can be achieved by rotating the moving contact piece until it contacts the static contact piece. When a moving contact piece is connected to a static contact piece, it is an output circuit, and when multiple moving contact pieces are respectively in contact with corresponding static contact pieces, it is multiple output circuits. The switching can be achieved by controlling the rotation of the rotating frame by the driving member, which is more practical.

[0006] The utility model is further configured as follows: an indicator light is also provided on the base, an indicator light input end is electrically connected to a live wire pin or a neutral wire pin, an indicator light neutral wire pin is also provided on the base, an indicator light output end is connected to the indicator light neutral wire pin, and a load protector is also provided on the indicator light input end.

[0007] By adopting the above technical solution, when the input end of the indicator light is connected to the live wire pin, the indicator light always remains on; when the input end of the indicator light is connected to the neutral wire pin, when the corresponding moving contact piece contacts the corresponding static contact piece, the indicator light is on, and the load protector can protect the indicator light.

[0008] The utility model is further configured as follows: both ends of the conductive sheet are bent to form plug-in pins, and the plug-in pins are plugged onto the rotating frame.

[0009] By adopting the above technical solution, the rotational cooperation can be realized by cooperating the plug-in pins with the rotating frame, the structure is simple, the installation is convenient and the displacement of the conductive sheet can be prevented.

[0010] A further configuration of the utility model is as follows: the bottoms of the neutral wire pin and the live wire pin are bent and arranged outwards.

[0011] By adopting the above technical solution, the switch can be further prevented from being pulled out. Of course, the bottoms of the neutral pin and the live pin can also be vertically arranged, which is more convenient during assembly.

[0012] The utility model is further configured as follows: an elastic expansion member is arranged on the outer side of the base.

[0013] By adopting the above technical solution, the position of the switch can be expanded and tightened by the elastic expansion member after assembly, thereby preventing the switch from being easily pulled out. By adopting the elastic expansion member, the switch can be relatively taken out after being deformed by external force.

[0014] The utility model is further configured as follows: inverted teeth are further provided on the outer side of the elastic expansion member.

[0015] By adopting the above technical solution, the switch can be further prevented from being pulled out after installation.

[0016] A further configuration of the utility model is that the driving member is one of a knob and a rotating shaft.

[0017] By adopting the above technical solution, when a knob is used, the switch can be easily driven for use. When a rotating shaft is used, the cost is relatively low, and it can also prevent easy twisting, and the safety factor is relatively high.

[0018] A further configuration of the utility model is that when the driving member is a knob, an indicating arrow is provided on the knob.

[0019] By adopting the above technical solution, the user can know the current rotation direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional diagram of the utility model with an indicating arrow;

[0021] Figure 2 It is a three-dimensional diagram of the utility model with an indicating arrow;

[0022] Figure 3 This is a schematic diagram of the internal structure of the utility model;

[0023] Figure 4 This is a diagram showing the coordination of the live wire pin, neutral wire pin, conductive sheet and other components of the utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the indicator light of the utility model;

[0025] Figure 6 This is a schematic diagram of the structure of the conductive sheet of the utility model;

[0026] Figure 7 This is a schematic diagram of the structure of the utility model without an indicating arrow;

[0027] Figure 8 This is a schematic diagram of the structure of a rotating shaft used as a driving member of the utility model;

[0028] Fig. 9 This is a schematic diagram of the bending structure of the bottom of the corresponding pin of the utility model;

[0029] Fig.10 This is a schematic diagram of the corresponding pin bottom bending structure without an indicating arrow in the utility model;

[0030] Fig.11 for Fig. 9 Bottom structure diagram;

[0031] Fig.12 This is a schematic diagram of the bending structure of the corresponding pin bottom when the driving member of the utility model is a rotating shaft;

[0032] Fig.13 for Fig.12 Schematic diagram of the bottom structure. DETAILED DESCRIPTION

[0033] The following is a detailed description of the specific implementation of the utility model in conjunction with the accompanying drawings:

[0034] In the description of the present invention, it should be understood that the terms "upper", "lower", "bottom", "top", "front", "back", "inside", "outside", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0035] The utility model discloses a knob switch, comprising a base 1, a neutral pin 2 arranged on the base 1, a static contact piece 3 electrically connected to the neutral pin 2, a live pin 4 arranged on the base 1, and a moving contact piece 5 electrically connected to the live pin 4. The base 1 is also provided with a rotating frame 6 for driving the moving contact piece 5 to rotate and a driving member 40 for driving the rotating frame 6 to rotate. In the implementation case of the utility model, the neutral pin 2 is provided with a plurality of them along the circumferential direction, and each of the neutral pins 2 is provided with a static contact piece 3 (when the neutral pin 2 is provided along the circumferential direction, the static contact piece 3 is provided on the neutral pin 2 and is also provided along the circumferential direction. Of course, the static contact piece 3 can also be provided along the circumferential direction, and the static contact piece 3 is connected to the neutral pin 2 through a conductive wire or a conductive sheet. In this case, the neutral pin 2 does not need to be arranged along the circumferential direction), a plurality of movable contact pieces 5 corresponding to the static contact pieces 3 are also arranged, and a conductive piece 7 rotating synchronously therewith is provided on the rotating frame 6, and the conductive piece 7 is always electrically connected to the live pin 4. The movable contact piece 5 is arranged on the conductive piece 7 at intervals along the circumferential direction. When in use, the rotating frame 6 is driven to rotate by the driving member 40. At this time, the conductive piece 7 is connected with the live pin 4. At the same time, the movable contact piece 5 is rotated until it contacts with the static contact piece 3 to achieve electrical connection. When one movable contact piece 5 is connected with one static contact piece 3, it is one output circuit. When multiple movable contact pieces 5 are respectively in contact with the corresponding static contact pieces 3, it is multiple output circuits. The switching can be achieved by controlling the rotation of the rotating frame 6 by the driving member 40, which is more practical.

[0036] The base 1 is also provided with an indicator light 8, and the indicator light input terminal 81 is electrically connected to the live wire pin 4 or the neutral wire pin 2. The base 1 is also provided with an indicator light neutral wire pin 9, and the indicator light output terminal 82 is connected to the indicator light neutral wire pin 9. The indicator light input terminal 81 is also provided with a load protector 10 (it is most preferred to use a resistor, which can be purchased directly from the market and will not be introduced in detail in this article). When the indicator light input terminal 81 is connected to the live wire pin 4, the indicator light 8 always remains in a lit state. When the indicator light input terminal 81 is connected to the neutral wire pin 2, when the corresponding moving contact piece 5 contacts the corresponding static contact piece 3, the indicator light 8 is lit, and the load protector 10 can protect the indicator light 8.

[0037] The two ends of the conductive sheet 7 are bent to form plug pins 71, and the plug pins 71 are inserted into the rotating frame 6. By cooperating with the rotating frame 6, rotational cooperation can be achieved. The structure is simple, the installation is convenient, and the conductive sheet 7 can be prevented from shifting. It is most preferred to provide a barb on the plug pin 71 to prevent it from detaching from the rotating frame 6.

[0038] The bottoms of the neutral pin 2 and the live pin 4 are bent and arranged outward, which can further prevent the switch from being pulled out. Of course, the bottoms of the neutral pin 2 and the live pin 4 can also be arranged vertically, which is more convenient during assembly.

[0039] An elastic expansion member 20 is arranged on the outside of the base 1. After assembly, the elastic expansion member 20 can be used to expand the position of the switch to prevent the switch from being easily pulled out. The elastic expansion member 20 can be used to deform the switch through external force so that the switch can be relatively taken out.

[0040] The outer side of the elastic expansion member 20 is also provided with inverted teeth 201, which can further prevent the switch from being pulled out after installation.

[0041] The driving member 40 is a knob or a rotating shaft. When a knob is used, it is convenient to drive the switch for use. When a rotating shaft is used, the cost is relatively low, and it can also prevent easy twisting, and the safety factor is relatively high.

[0042] When the driving member 40 is a knob, an indication arrow 30 is provided on the knob (the indication arrow is most preferably in a cat's eye shape) so that the user can know the current rotation direction.

Claims

1. A rotary switch, comprising a base (1), a neutral pin (2) provided on the base (1), a stationary contact piece (3) electrically connected to the neutral pin (2), a live pin (4) provided on the base (1), and a movable contact piece (5) electrically connected to the live pin (4), the base (1) further comprising a rotating frame (6) for driving the movable contact piece (5) to rotate and a driving member (40) for driving the rotating frame (6) to rotate, characterized in that: A plurality of neutral pins (2) are arranged along the circumferential direction, each neutral pin (2) is provided with a static contact piece (3), a plurality of moving contact pieces (5) are also provided corresponding to the static contact pieces (3), and a conductive piece (7) that rotates synchronously with the rotating frame (6) is provided, the conductive piece (7) is always electrically connected to the live pin (4), and the moving contact pieces (5) are arranged on the conductive piece (7) at intervals along the circumferential direction.

2. A knob switch according to claim 1, characterized in that: The base (1) is also provided with an indicator light (8), the indicator light input terminal (81) is electrically connected to the live wire pin (4) or the neutral wire pin (2), the base (1) is also provided with an indicator light neutral wire pin (9), and the indicator light output terminal (82) is connected to the indicator light neutral wire pin (9).

3. A knob switch according to claim 1 or 2, characterized in that: The two ends of the conductive sheet (7) are bent to form plug-in pins (71), and the plug-in pins (71) are inserted into the rotating frame (6).

4. A rotary switch according to claim 3, characterized in that: The bottoms of the neutral wire pin (2) and the live wire pin (4) are bent and arranged outwards.

5. The rotary switch according to claim 3, characterized in that: The neutral wire pin (2) and the live wire pin (4) are arranged vertically at the bottom.

6. A knob switch according to claim 4 or 5, characterized in that: An elastic expansion member (20) is arranged on the outside of the base (1).

7. The rotary switch according to claim 6, characterized in that: The outer side of the elastic expansion member (20) is also provided with inverted teeth (201).

8. The rotary switch according to claim 7, characterized in that: The driving member (40) is one of a knob and a rotating shaft.

9. The rotary switch according to claim 8, characterized in that: When the driving member (40) is a knob, an indicating arrow (30) is provided on the knob.

10. The rotary switch according to claim 2, characterized in that: A load protector (10) is also provided on the input end (81) of the indicator light.

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