CN213124006U

CN213124006U - Switch potentiometer

Info

Publication number: CN213124006U
Application number: CN202022483565.3U
Authority: CN
Inventors: 沈小平
Original assignee: Foshan Xingshun Electronics Co ltd
Current assignee: Foshan Xingshun Electronics Co ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-05-04
Anticipated expiration: 2030-10-30

Abstract

The utility model relates to a potentiometre technical field especially relates to a switch potentiometer, including shell, worm wheel, worm and circular guide piece, contact brush, the left side of shell inner wall is rotated with the left side of worm wheel and is connected, the one end of worm is rotated with the bottom of shell inside wall and is connected, the worm is connected with the worm wheel meshing transmission, the other end of worm extends to the outside of shell, circular guide piece fixed mounting is in the right side of worm wheel, on the outward flange position on circular guide piece right side with contact brush fixed connection, the right side fixedly connected with base member of shell inner wall. The utility model discloses reached and made potentiometre be equipped with the purpose of meticulous regulation resistance value and improvement resolution power, can carry out slight regulation according to the user demand, not only replaced the regulation mode of present many rings of form resistors, the accommodation process of resistance value is convenient fast moreover, can be convenient for carry out accurate regulation to the resistor, has improved the convenience of resistor accommodation process.

Description

Switch potentiometer

Technical Field

The utility model relates to a potentiometre technical field especially relates to a switch potentiometre.

Background

The potentiometer is a resistance element which is provided with three leading-out terminals and the resistance value of which can be adjusted according to a certain change rule. Potentiometers are generally composed of a resistive body and a movable brush. When the brush moves along the resistor, a resistance value or a voltage having a certain relation with the displacement is obtained at the output end. The potentiometer can be used as a three-terminal device or a two-terminal device. The latter can be regarded as a variable resistor, and is called a potentiometer because its role in the circuit is to obtain an output voltage in relation to the input voltage (applied voltage).

Multi-turn potentiometers are often used in many high-precision measurement areas, for example: 5 circles, 10 circles and the like, namely the rotating shaft of the multi-circle potentiometer rotates for multiple circles, the complete resistance value can be adjusted, and the fine adjustment effect is achieved. However, the resistance value adjusting process is complicated due to the fact that the potentiometer needs to rotate for multiple circles in the using process, operation is inconvenient, meanwhile, the potentiometer cannot be manually and accurately adjusted quickly, and the potentiometer cannot be adjusted accurately by a user due to the fact that the potentiometer is too large or too small frequently.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides a switch potentiometre has reached and has made potentiometre possess the purpose of meticulous regulation resistance value and improvement resolution power effect, can carry out slight regulation according to the user demand, has not only replaced the regulative mode of present many rings of form resistors, and the accommodation process of resistance value is convenient fast moreover, can be convenient for carry out accurate the regulation to the resistor, has improved the convenience of resistor accommodation process.

(II) technical scheme

In order to realize the technical problem, the utility model provides a following technical scheme: the utility model provides a switch potentiometer, includes shell, worm wheel, worm and circular guide vane, contact brush, the left side of shell inner wall is rotated with the left side of worm wheel and is connected, the one end of worm is rotated with the bottom of shell inside wall and is connected, the worm is connected with the worm wheel meshing transmission, the other end of worm extends to the outside of shell, circular guide vane fixed mounting is in the right side of worm wheel, on the outward flange position on circular guide vane right side with contact brush fixed connection.

Furthermore, a base body is fixedly connected to the right side of the inner wall of the shell, a resistor body is fixedly connected to the outer edge of the left side of the base body, the resistor body is installed on the base body in an embedded mode, and the contact brush is in lap joint with the resistor body.

Furthermore, the conductor is fixedly connected to the middle position of the right side of the circular guide sheet, the conductor is located in the center of the circle on the base body, the carbon sheet is fixedly connected to the conductor, and the leading-out terminal is fixedly connected to the carbon sheet.

Furthermore, the right side fixedly connected with axle sleeve of shell, the inside grafting of axle sleeve has the turning handle, the left end and the conductor fixed connection of turning handle, seted up the keyway on the turning handle.

Furthermore, the bottom of the outer surface of the shell is fixedly connected with a fixed seat, and a positioning hole is formed in the fixed seat.

Furthermore, one end of the worm, which is positioned outside the shell, is fixedly connected with an adjusting cap, and anti-skid grains are arranged on the outer surface of the adjusting cap.

(III) advantageous effects

The utility model provides a switch potentiometer possesses following beneficial effect:

1. the utility model discloses a rotate and adjust the cap and drive the worm and carry out synchronous rotation, meshing transmission state between cooperation worm and the worm wheel, the worm wheel just rotates the stroke of a tooth when the worm rotates a week, simultaneously because contact brush is connected with the worm wheel through circular guide plate, adjust cap and worm as an organic whole, when adjusting the cap and rotate the round, contact brush has only removed a very short stroke on the resistive element, consequently reached and made potentiometre utensil possess the purpose of meticulous regulation resistance value and improvement resolution power effect.

2. The utility model discloses can carry out slight regulation according to the user demand, not only replace the regulative mode of present many rings of form resistors, the accommodation process of resistance value is convenient fast moreover, can be convenient for carry out accurate regulation to the resistor, has improved the convenience of resistor accommodation process.

Drawings

FIG. 1 is a schematic front view of the structure of the present invention;

fig. 2 is a schematic diagram of the internal structure of the housing of the present invention.

In the figure: 1. a housing; 2. a worm gear; 3. a worm; 4. a circular guide plate; 5. a contact brush; 6. a substrate; 7. a resistor body; 8. a conductor; 9. a carbon sheet; 10. a lead-out terminal; 11. a shaft sleeve; 12. a handle is rotated; 13. a keyway; 14. a fixed seat; 15. and adjusting the cap.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: a switch potentiometer comprises a shell 1, a worm wheel 2, a worm 3, a circular guide sheet 4 and a contact electric brush 5, wherein the left side of the inner wall of the shell 1 is rotatably connected with the left side of the worm wheel 2, one end of the worm 3 is rotatably connected with the bottom of the inner side wall of the shell 1, the worm 3 is in meshing transmission connection with the worm wheel 2, the other end of the worm 3 extends to the outside of the shell 1, the circular guide sheet 4 is fixedly arranged on the right side of the worm wheel 2, the outer edge of the right side of the circular guide sheet 4 is fixedly connected with the contact electric brush 5, the worm 3 is driven to synchronously rotate by rotating an adjusting cap 15, the worm wheel 3 and the worm wheel 2 are matched with the meshing transmission state, when the worm 3 rotates for one circle, the worm wheel 2 rotates for one tooth stroke, meanwhile, the contact electric brush 5 is connected with the worm wheel 2 through the circular guide sheet 4, the adjusting cap 15 and the worm 3 are integrated, when the adjusting cap 15, therefore, the purpose of enabling the potentiometer to have the functions of finely adjusting the resistance value and improving the resolution is achieved.

The right side fixedly connected with base member 6 of 1 inner wall of shell, fixedly connected with resistive element 7 on the outer fringe of 6 left sides of base member, the embedded installation on base member 6 of resistive element 7,

contact brush

5 and 7 overlap joints of resistive element, 4 right sides intermediate position fixedly connected with conductors 8 of circular guide strip, conductors 8 are arranged in the center of circle position on base member 6, fixedly connected with carbon sheet 9 on the conductors 8, fixedly connected with leading-out terminal 10 on the carbon sheet 9, the right side fixedly connected with axle sleeve 11 of shell 1, the inside grafting of axle sleeve 11 has turning handle 12, the left end and the 8 fixed connection of conductor of turning handle 12, keyway 13 has been seted up on turning handle 12, the bottom fixedly connected with fixing base 14 of 1 surface of shell, be provided with the locating hole on fixing base 14, worm 3 is located the outside one end fixedly connected with regulation cap 15 of shell 1, anti-.

In the in-process that uses, adjust the cap 15 through rotating and drive worm 3 and carry out synchronous rotation, meshing transmission state between cooperation worm 3 and the worm wheel 2, worm wheel 2 just rotates the stroke of a tooth when worm 3 rotates a week, simultaneously because contact brush 5 is connected with worm wheel 2 through circular guide strip 4, adjust cap 15 and worm 3 as an organic whole, when adjusting cap 15 and rotate the round, contact brush 5 has only removed a very short stroke on resistive element 7, consequently reached and made potentiometre utensil be equipped with the purpose of meticulous regulation resistance value and improvement resolution power, the utility model discloses can carry out slight regulation according to the user demand, not only replace the regulation mode of present many rings of form resistors, the accommodation process of resistance value is convenient fast moreover, can be convenient for carry out accurate regulation to the resistor, has improved the convenience of resistor accommodation process.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a switch potentiometre, includes shell (1), worm wheel (2), worm (3) and circular guide piece (4), contact brush (5), its characterized in that: the left side of shell (1) inner wall is rotated with the left side of worm wheel (2) and is connected, the one end of worm (3) is rotated with the bottom of shell (1) inside wall and is connected, worm (3) are connected with worm wheel (2) meshing transmission, the other end of worm (3) extends to the outside of shell (1), circular guide vane (4) fixed mounting is on the right side of worm wheel (2), on the outward flange position on circular guide vane (4) right side with contact brush (5) fixed connection.

2. A switched potentiometer according to claim 1, wherein: the right side of the inner wall of the shell (1) is fixedly connected with a base body (6), the outer edge of the left side of the base body (6) is fixedly connected with a resistor body (7), the resistor body (7) is installed on the base body (6) in an embedded mode, and the contact electric brush (5) is in lap joint with the resistor body (7).

3. A switched potentiometer according to claim 1, wherein: circular conducting strip (4) right side intermediate position fixedly connected with conductor (8), conductor (8) are arranged in the centre of circle position on base member (6), fixedly connected with carbon piece (9) on conductor (8), fixedly connected with leading-out terminal (10) on carbon piece (9).

4. A switched potentiometer according to claim 1, wherein: the right side fixedly connected with axle sleeve (11) of shell (1), the inside grafting of axle sleeve (11) has turning handle (12), the left end and conductor (8) fixed connection of turning handle (12), set up keyway (13) on turning handle (12).

5. A switched potentiometer according to claim 1, wherein: the bottom fixedly connected with fixing base (14) of shell (1) surface, be provided with the locating hole on fixing base (14).

6. A switched potentiometer according to claim 1, wherein: the worm (3) is located the outside one end fixedly connected with of shell (1) and adjusts cap (15), the surface of adjusting cap (15) has seted up anti-skidding line.