CN102403153B - Rotary multiple-gear switch - Google Patents

Abstract

The invention discloses a rotary multi-gear switch, and provides a rotary multi-gear switch with simple structure, small size, low cost, fast and accurate positioning, and unidirectional rotation limit. The rotary multi-gear switch It includes a casing, a switch rotor (3), and a rotary gear adjustment device. The rotary gear adjustment device is respectively connected with the switch rotor (3) and the casing. When the switch rotor (3) is opposite to the When the casing is rotated, the gear is adjusted, and the rotary gear adjustment device is directly arranged in the casing without being connected with an external circuit board, so that the occupied space can be greatly reduced, and the inner wall of the casing is provided with an annular groove ( 60), the lower end of the switch rotor (3) is provided with a through hole (30), a compression spring (8) and a rolling ball (9) located in the through hole (30), the rolling ball (9) Under the action of the compression spring (8), it elastically presses against the annular groove (60).

Description

Rotary multi-position switch

technical field

The invention relates to a rotary multi-position switch. the

Background technique

A switch refers to an electronic component that can open a circuit, interrupt the current, or cause it to flow to other circuits. At present, mechanical switches on the market are divided into different operation modes: push type, trigger type, toggle type, rotary type, rotary The multi-position switch is widely used in electrical fields such as fans, lamps, radios, stereos, etc. due to its advantages of convenient use, multi-position adjustment, and reliable positioning. At present, a rotary multi-position switch has appeared, but this Domestic products of switches have poor positioning and power-on reliability, but to ensure the reliability of positioning and power-on, the volume of the switch must be made relatively large, so that the corresponding need to increase space accommodation and increase production costs, in some accommodation space It is inconvenient for limited equipment, such as gun sights and other equipment, and foreign products can find a similar function selection switch, which is imported from Europe. It needs to be connected with a self-designed circuit to achieve brightness and multi-function adjustment. The price is similar to domestic switches. More than 15 times, there are also the problems of complex structure and high cost, and the existing rotary multi-gear switch does not have the limit function, which is necessary for the use at night and needs to be concealed such as the military police field Yes, the existing multi-gear rotary switch is generally used in two ways at night: use fluorescent paint on the identification mark, or use LED lighting to find the gear accurately and conveniently. These two ways are easy to expose yourself. If do not adopt such mode, just can not find required gear quickly, accurately, there is certain inconvenience equally. the

Contents of the invention

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide a rotary multi-gear switch with simple structure, small size, low cost, fast and accurate positioning, and one-way rotation limit. The switch is easy to set the off gear, and it is easy to quickly and accurately select the desired gear. the

The technical solution adopted in the present invention is: the present invention includes a housing, a switch rotor located in the cavity of the housing and rotatingly matched with the housing, a rotary gear adjustment device, and the rotary gear adjustment device is respectively connected to the The switch rotor is connected with the housing, and the gear position is adjusted when the switch rotor rotates relative to the housing. The inner wall of the housing is provided with an annular groove, and the lower end of the switch rotor is provided with a through hole, located at The compression spring and the rolling ball in the through hole, the rolling ball is elastically pressed against the annular groove under the action of the compression spring, and the rotary gear adjustment device includes a conductive shrapnel and a circuit board , the conductive shrapnel is arranged on the fixing column at the bottom of the switch rotor, the circuit board is installed on the annular boss provided on the inner side of the bottom of the housing, the conductive shrapnel is in contact with the circuit board, and the At least two electrode contacts are provided on the conductive shrapnel, and a number of gear adjustment contacts and switch contacts are arranged on the circuit board. When the conductive shrapnel rotates with the switch rotor, the electrode contacts can be Contact with the gear adjustment contact or the switch contact to realize the adjustment or closing of the gear. the

The housing includes a switch seat and a switch stator, the switch seat is fitted on the outer wall of the switch stator to fit the switch stator, the switch seat presses the switch rotor, and the annular groove is set On the switch stator, the lower end of the switch rotor is located in the switch stator, and the top of the switch rotor passes through the switch base. the

A switch stator stopper is provided on the top of the switch stator circumferential wall, a switch rotor stopper is provided on the switch rotor, and the switch rotor stopper is in contact with the top of the switch stator circumferential wall. the

A sealing ring is provided between the upper end of the switch rotor and the inner side wall of the switch base, and the bottom of the switch base is sealed with sealant. the

The beneficial effects of the present invention are: since the present invention includes a housing, a switch rotor located in the cavity of the housing and rotatingly matched with the housing, and a rotary gear adjustment device, the rotary gear adjustment device is respectively connected to the switch The rotor is connected with the housing, and the gear position is adjusted when the switch rotor rotates relative to the housing. The inner wall of the housing is provided with an annular groove, and the lower end of the switch rotor is provided with a through hole, which is located at the The compression spring and the rolling ball in the through hole, the rolling ball is elastically pressed against the annular groove under the action of the compression spring, and the rotary gear adjustment device is arranged in the housing , to avoid the inconvenience of external circuit adjustment, so the present invention is simple in structure, relatively small in size, low in space occupancy rate and relatively low in cost, and is suitable for devices that need to use smaller switch control circuits, and has a wider application range, and through such rotation The positioning structure makes the energization and positioning of the rotary gear adjustment device very accurate, the hand feels better and the operation is easier, so the present invention is accurate in energization and positioning, and is easy to operate and use. the

Since the top of the switch stator circumferential wall is provided with a switch stator stopper, the switch rotor is provided with a switch rotor stopper, and the switch rotor stopper is in contact with the top of the switch stator circumferential wall, the switch When the rotor rotates, the switch stator stopper can be in contact with the switch stator stopper, thereby effectively limiting the rotation range of the switch rotor and ensuring that the user can not see the gear mark in a special environment. The gear position can be adjusted quickly and accurately according to the needs, so the present invention can quickly and accurately adjust the required gear position under concealed conditions, and has good use effect. the

Since a sealing ring is provided between the upper end of the switch rotor and the inner side wall of the switch base, and the bottom of the switch base is sealed with sealant, the utility model has good sealing performance, waterproof, impact resistance, and high and low temperature resistance. International standards for the use of firearms for military use. the

Description of drawings

Fig. 1 is a schematic diagram of an explosion structure of the present invention;

Fig. 2 is a sectional view of the present invention;

Fig. 3 is a partial sectional view of the present invention;

Fig. 4 is a schematic structural view of the conductive shrapnel of the present invention;

Fig. 5 is the structural representation of circuit board of the present invention;

Fig. 6 is a schematic diagram of the three-dimensional structure of the switch seat not installed in the present invention;

Fig. 7 is a schematic circuit diagram of the present invention connected with other devices.

Detailed ways

As shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and Fig. 6, the present invention includes a casing, a switch rotor 3 located in the cavity of the casing and rotatingly matched with the casing, and a rotary gear adjustment device , the rotary gear adjustment device is respectively connected with the switch rotor 3 and the housing, when the switch rotor 3 rotates relative to the housing, the gear adjustment is performed, and the inner wall of the housing is provided with an annular recess slot 60, the housing includes a switch seat 1 and a switch stator 6, the switch seat 1 is set on the outer side wall of the switch stator 6 to match the switch stator 6, and the switch seat 1 presses the The switch rotor 3, the annular groove 60 is arranged on the switch stator 6, the lower end of the switch rotor 3 is located in the switch stator 6, and its top passes through the switch seat 1, the switch rotor 3 The lower end is provided with a through hole 30, a stage clip 8 and a rolling ball 9 positioned in the through hole 30, and two rolling balls 9 are provided on both sides of the stage clip 8 respectively. Under the action of the compression spring 8, it is elastically pressed against the annular groove 60. The switch base 1 is a hollow cap-shaped body with an open lower end, and a joint part 11 is provided at the upper end. Threads are provided, the switch stator 6 is a tubular body with openings at both ends, and cooperates with the switch base 1 to form a shell, the outer surface of the bottom of the switch stator 6 is provided with bumps, and the bottom edge of the switch base 1 A buckle groove is provided, and the protrusion is located in the buckle groove and is fastened. The rotary gear adjustment device includes a conductive shrapnel 5 and a circuit board 7, and the conductive shrapnel 5 is arranged on the switch rotor 3. Bottom, specifically, at the bottom of the switch rotor 3 are provided with three fixed columns in a line, the conductive elastic piece 5 is sleeved on the fixed column and rotates with the switch rotor 3 at the same time, the conductive elastic piece 5 It can also be fixed on the bottom of the switch rotor 3 by means of screws, etc., the circuit board 7 is installed on the annular boss provided on the inner side of the switch stator 6, and the conductive shrapnel 5 is in phase with the circuit board 7. contact, the circuit board 7 is clamped by the pressure of the conductive elastic sheet 5 and the restriction of the annular boss, the conductive elastic sheet 5 is provided with at least two electrode contacts, and the circuit board 7 is provided with Several gear adjustment contacts, switch contacts, when the conductive shrapnel 5 rotates with the switch rotor 3, the electrode contacts can be in contact with the gear adjustment contacts or the switch contacts to realize To adjust or close the circuit, in the present invention, the conductive elastic sheet 5 is provided with two downward fixed contacts 51 and a movable contact 52, and the top of the circuit board 7 is provided with a positioning piece 71 with different resistance The number of gear contacts 72, the fixed contact 51 is not absolutely stationary, but relative to the movable contact 52, the purpose of setting two fixed contacts 51 here is to ensure the balance , the positioning piece 71 is located in the middle of the circuit board 7, and the external wire is connected to the external device to be adjusted (such as an LED lamp) and the positive pole of the power supply. The circuit board 7 is provided with a wire hole to facilitate the wire through, the number of The gear contacts 72 are evenly distributed on the edge of the circuit board 7, and there is a blank space between the several gear contacts 72 as switch contacts, and the several gear contacts 72 are seven different gears. , and after parallel connection, the external wire is connected to the negative pole of the power supply. In addition, for the design of waterproof effect, a sealing ring 2 is arranged between the upper end of the switch rotor 3 and the inner side wall of the switch base 1, and the switch base 1 The bottom of the gun is sealed with sealant, so the utility model has good sealing performance, waterproof, impact resistance, high and low temperature resistance, and can reach the use standard of international military guns. the

As shown in Figure 7, when the present invention is applied to real life, the positioning piece 71 on the circuit board 7 is connected to a wire to connect the LED lamp and the positive pole of the power supply, and the plurality of gear contacts 72 are connected in parallel The rear external wire is connected to the negative pole of the power supply, hold the top of the switch rotor 3 to make it rotate, and the conductive shrapnel 5 will rotate accordingly, and the fixed contact 51 will be placed on the positioning piece while maintaining the phase contact state. The surface of 71 slides, and the movable contact 52 is in contact with the plurality of gear contacts 72 or switch contacts with different resistance values of the corresponding gear, so as to realize the opening, brightness adjustment and closing of the LED lamp, When the switch rotor 3 rotates to a certain position, the switch stator stopper 61 blocks the switch rotor stopper 31 to limit the rotation of the switch rotor 3, which is convenient for the user to quickly and accurately Adjust to the desired gear. the

The specific implementation methods listed above are non-limiting. For those skilled in the art, various improvements and changes made without departing from the scope of the present invention all belong to the protection scope of the present invention. For example, the above-mentioned The annular groove 60 is set on the inner side wall of the switch base 1, but at this time, the switch stator 2 wraps the outer side wall of the switch base 1, and the protrusion is arranged on the outer side of the switch base 1 On the wall, the bayonet slot is arranged at the corresponding position on the edge of the switch stator 6 . the

The rotary multi-gear switch of the present invention can not only be used as a switch for adjusting brightness, but also can be used as an encoding switch. the

Claims (4)

1. A rotary multi-gear switch, characterized in that it includes a casing, a switch rotor (3) located in the cavity of the casing and rotatingly matched with the casing, a rotary gear adjustment device, the rotary The gear adjustment device is respectively connected with the switch rotor (3) and the housing, and the gear adjustment is performed when the switch rotor (3) rotates relative to the housing, and the inner wall of the housing is provided with an annular groove (60), the lower end of the switch rotor (3) is provided with a through hole (30), a compression spring (8) and a rolling ball (9) located in the through hole (30), and the rolling ball (9 ) is elastically pressed against the annular groove (60) under the action of the compression spring (8), the rotary gear adjustment device includes a conductive shrapnel (5) and a circuit board (7), the The conductive shrapnel (5) is arranged on the fixed column at the bottom of the switch rotor (3), the circuit board (7) is installed on the ring-shaped boss provided on the inner side of the bottom of the housing, and the conductive shrapnel (5) In contact with the circuit board (7), at least two electrode contacts are provided on the conductive shrapnel (5), and several gear adjustment contacts and switch contacts are provided on the circuit board (7). When the conductive shrapnel (5) rotates with the switch rotor (3), the electrode contact can be in contact with the gear adjustment contact or the switch contact to realize gear adjustment or closing. 2. The rotary multi-position switch according to claim 1, characterized in that: the housing includes a switch base (1) and a switch stator (6), and the switch base (1) is sleeved on the switch stator ( 6) on the outer wall of the switch stator (6), the switch seat (1) presses the switch rotor (3), and the annular groove (60) is set on the switch stator ( 6), the lower end of the switch rotor (3) is located inside the switch stator (6), and its top passes through the switch seat (1). 3. The rotary multi-position switch according to claim 2, characterized in that: the top of the circumferential wall of the switch stator (6) is provided with a switch stator stopper (61), and the switch rotor (3) is provided with a There is a switch rotor stopper (31), and the switch rotor stopper (31) is in contact with the top of the circumferential wall of the switch stator (6) to realize unidirectional rotation limit. 4. The rotary multi-position switch according to claim 2, characterized in that: a sealing ring (2) is provided between the upper end of the switch rotor (3) and the inner side wall of the switch seat (1), The bottom of the switch base (1) is sealed with a sealant.

Images