Angular displacement potentiometer with adjustable switch starting position and switch

Abstract

The utility model discloses a switch angular displacement potentiometer with an adjustable switch starting position, which comprises a shell, a rotating shaft, a detection assembly, a switch assembly, a glass bead screw, a switch torque sleeve and a locking screw, the rotating shaft penetrates through a corresponding through hole of the shell, and the detection assembly and the switch assembly are respectively arranged in the shell and are respectively connected with the rotating shaft. A protruding strip is arranged on the outer wall of the switch torque sleeve, the switch torque sleeve is arranged on the rotating shaft in a sleeved mode through a center through hole of the switch torque sleeve, a radial screw hole is formed in the wall of the switch torque sleeve, and the locking screw is installed in the radial screw hole and abuts against the outer wall of the rotating shaft. The glass bead screws are installed in corresponding screw holes in the shell, balls of the glass bead screws are close to the outer wall of the switch torque sleeve, and the axial direction of the glass bead screws is perpendicular to the axial direction of the switch torque sleeve. According to the utility model, the switch starting position adjusting function is realized, the switch starting position can be changed according to the actual needs of different users in the final assembly process of production, and the application is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of switch angular displacement potentiometers, especially a kind of switch angular displacement potentiometers with adjustable switch starting position. BACKGROUND

[0002] Switch angular displacement potentiometer is a kind of potentiometer with angular displacement detection function and switch control function, because it has multiple functions with one potentiometer, it is used in specific application, compared with using two potentiometers, it has advantages such as small space occupation, high integration, cost saving, etc., for example, the utility model patent with patent number "ZL 202321802630.1", the name "switch starting torque adjustable glass enamel angular displacement with switch", and the utility model patent with patent number "ZL202221159158.X", the name "metal glass enamel angular displacement potentiometer based on high-precision, long-life switch", all involve switch angular displacement potentiometer.

[0003] Traditional switch angular displacement potentiometer does not have switch starting position adjustment function for switch control hand feeling adjustment structure, for example, in the utility model patent with patent number "ZL 202321802630.1", the name "switch starting torque adjustable glass enamel angular displacement with switch", the function of switch control hand feeling adjustment (i.e. switch starting torque adjustment) is realized by the cooperation of glass bead screw and partition strip in the circular groove on the shaft, the relative position between glass bead screw and partition strip on the shaft is fixed after the related components are processed, i.e. it no longer has switch starting position adjustment function, which is not conducive to changing switch starting position according to actual needs of different users in the final assembly process of production, so that its application is limited; In addition, the switch control structure of traditional switch angular displacement potentiometer either does not realize switch function through the contact of brush and conductive strip, or does not have signal feedback function when disconnected, which has application limitations. UTILITY MODEL CONTENTS

[0004] The purpose of the utility model is to provide a kind of switch angular displacement potentiometer with adjustable switch starting position to solve the above problems.

[0005] The utility model realizes the above-mentioned purpose by the following technical scheme:

[0006] The switch starting position adjustable switch angle displacement potentiometer comprises a shell, a rotating shaft, a detection assembly and a switch assembly, the rotating shaft passes through a corresponding through hole of the shell, an outer end of the rotating shaft is located outside the shell and an inner end of the rotating shaft is located inside the shell, the detection assembly and the switch assembly are respectively installed in the shell and are respectively connected with the rotating shaft, the switch starting position adjustable switch angle displacement potentiometer further comprises a glass bead screw, a switch torque sleeve and a locking screw, an outer wall of the switch torque sleeve is provided with a convex strip which is convex outward and whose length direction is parallel to an axial direction of the switch torque sleeve, the switch torque sleeve is sleeved on the rotating shaft through a central through hole of the switch torque sleeve, the switch torque sleeve is provided with a radial screw hole on a wall thereof and the locking screw is installed in the radial screw hole and tightly presses an outer wall of the rotating shaft, the glass bead screw is installed in a corresponding screw hole on the shell and a ball thereof is close to the outer wall of the switch torque sleeve, an axial direction of the glass bead screw is perpendicular to the axial direction of the switch torque sleeve.

[0007] As preferred, in order to have better rotation stopping effect between the switch torque sleeve and the rotating shaft, one or more concave planes are arranged on the outer wall of the rotating shaft at positions corresponding to the switch torque sleeve and the planes are filled with sealant between the inner wall of the switch torque sleeve.

[0008] As preferred, in order to better realize the angle displacement detection function and the switch control function, the detection assembly comprises a resistance body, a detection insulating sleeve, a detection reed and a detection brush, the resistance body is installed on a corresponding inner wall of the shell, the detection insulating sleeve is sleeved outside the rotating shaft, the detection reed is installed on the detection insulating sleeve, the detection brush is installed on the detection reed and is in contact with a working band on the resistance body; the switch assembly comprises a switch printed board, a switch insulating sleeve, a switch reed and a switch brush, the switch printed board is installed on a corresponding inner wall of the shell, the switch insulating sleeve is sleeved outside the rotating shaft, the switch reed is installed on the switch insulating sleeve, the switch brush is installed on the switch reed and is in contact with a conductive band on the switch printed board.

[0009] As preferred, in order to better integrate with the conductive plastic angular displacement potentiometer, the conductive strip on the switch printed board comprises a circular and closed inner conductive strip, a circular and open outer conductive strip and a block conductive strip, the first, second and third wiring terminals are arranged on the switch printed board outside the outer conductive strip, the inner conductive strip is connected with the first wiring terminal through a connecting conductive strip passing through the opening of the outer conductive strip, the outer conductive strip is connected with the second wiring terminal, the block conductive strip is located in the opening of the outer conductive strip and does not contact with the inner conductive strip, the connecting conductive strip and the outer conductive strip and is located on the same circumference with the outer conductive strip, the block conductive strip is connected with the third wiring terminal, and two switch brushes are respectively arranged on the switch reed, one of the switch brushes is always in contact with the inner conductive strip during the rotation of the switch insulating sleeve, and the other switch brush is in contact with the outer conductive strip or the block conductive strip during the rotation of the switch insulating sleeve.

[0010] As preferred, in order to facilitate processing and assembly, the shell comprises a first end shell, a second end shell and a plurality of middle shells which are connected with each other and located between the first end shell and the second end shell, and the rotating shaft passes through the corresponding through hole of the second end shell.

[0011] As preferred, in order to better support and guide the outer rotating shaft, the middle part of the second end shell is protruded to form a guide sleeve away from the first end shell, the rotating shaft passes through the central through hole of the guide sleeve, and the shaft sleeve is arranged between the inner wall of the guide sleeve and the outer wall of the rotating shaft.

[0012] The utility model discloses the beneficial effect lies in:

[0013] The utility model discloses the beneficial effect lies in: BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is the main view of the switch angular displacement potentiometer of the switch starting position adjustable of the utility model discloses the front section view of the switch;

[0015] Fig. 2It is the side view structural schematic drawing of the switch printed board of the switch starting position adjustable switch angular displacement potentiometer.

[0016] Fig. 3 It is the three-dimensional structural schematic drawing of the switch torque sleeve of the switch starting position adjustable switch angular displacement potentiometer. DETAILED DESCRIPTION

[0017] The utility model makes further explanation in combination with the drawings:

[0018] As Figs. 1-3 The utility model discloses a switch starting position adjustable switch angular displacement potentiometer includes shell (referring to the following first end shell 1, second end shell 10 and two middle shell 7), pivot 17, detection component, switch component, glass bead screw 6, switch torque sleeve 8 and locking screw 9, the pivot 17 passes through the corresponding through -hole of shell, and the outer end of pivot 19 is located in the shell, and the inner end is located in the shell, the detection component and switch component are installed in the shell respectively and are connected with pivot 17 respectively, and the outer wall of switch torque sleeve 8 is equipped with the convex strip 81 of the length direction and the axial parallel of switch torque sleeve 8, and switch torque sleeve 8 is sleeved on pivot 17 through the central through -hole of itself, and the pipe wall of switch torque sleeve 8 is equipped with radial screw hole 82, and locking screw 9 is installed in the radial screw hole 82 and is tightly pressed the outer wall of pivot 17, and glass bead screw 6 is installed in the corresponding screw hole on the shell, and the ball of it is close to the outer wall of switch torque sleeve 8, and the axial of glass bead screw 6 and the axial of switch torque sleeve 8 are perpendicular to each other.

[0019] As Figs. 1-3 The utility model discloses a switch starting position adjustable switch angular displacement potentiometer, and the switch starting position is adjustable, and the switch angular displacement potentiometer is provided with the switch torque sleeve, and the switch torque sleeve is provided with the locking screw, and the locking screw is installed in the radial screw hole of the pipe wall of switch torque sleeve and is tightly pressed the outer wall of pivot, and the glass bead screw is installed in the corresponding screw hole on the shell, and the ball of it is close to the outer wall of switch torque sleeve, and the axial of glass bead screw and the axial of switch torque sleeve are perpendicular to each other.

[0020] In order to make switch torque sleeve 8 and pivot 17 have better rotation stopping effect, the outer wall of pivot 17 is provided with one or more concave planes corresponding to switch torque sleeve 8, and the plane is filled with sealant between the inner wall of switch torque sleeve (not marked in the drawing).

[0021] In order to realize the angular displacement detection function and the switch control function, the detection assembly comprises a resistor body 12, a detection insulating sleeve 11, a detection spring 13 and a detection brush 16, the resistor body 12 is installed on the corresponding inner wall of the shell, the detection insulating sleeve 11 is sleeved outside the rotating shaft 17, the detection spring 13 is installed on the detection insulating sleeve 11, and the detection brush 16 is installed on the detection spring 13 and contacts the working band on the resistor body 12; the switch assembly comprises a switch printed board 5, a switch insulating sleeve 3, a switch spring 2 and a switch brush 4, the switch printed board 5 is installed on the corresponding inner wall of the shell, the switch insulating sleeve 3 is sleeved outside the rotating shaft 17, the switch spring 2 is installed on the switch insulating sleeve 3, and the switch brush 4 is installed on the switch spring 2 and contacts the conductive band on the switch printed board 5.

[0022] In order to realize the switch function through the contact between the switch brush 4 and the conductive band so as to be better integrated with the conductive plastic angular displacement potentiometer, the conductive band on the switch printed board 5 comprises a circular and closed inner conductive band 52, a circular and open outer conductive band 51 and a block conductive band 55 (here, the block is mainly to indicate that the area is small, and according to the needs, the shape can be square, circular, arc and the like, and the shape in the figure is arc), the first wiring end 54, the second wiring end 56 and the third wiring end 57 are arranged at the position outside the outer conductive band 51 on the switch printed board 5, the inner conductive band 52 is connected with the first wiring end 54 through the connecting conductive band 53 passing through the opening of the outer conductive band 51, the outer conductive band 51 is connected with the second wiring end 56, the block conductive band 55 is located in the opening of the outer conductive band 51 and does not contact the inner conductive band 52, the connecting conductive band 53 and the outer conductive band 51 and is located on the same circumference of the outer conductive band 51, the block conductive band 55 is connected with the third wiring end 57, and the two switch brushes 4 are respectively installed on the switch spring 2, one of the switch brushes 4 always contacts the inner conductive band 52 in the rotating process of the switch insulating sleeve 3, and the other switch brush 4 contacts the outer conductive band 51 or the block conductive band 55 in the rotating process of the switch insulating sleeve 3.

[0023] In order to facilitate processing and assembly, the shell comprises a first end shell 1, a second end shell 10 and a plurality of (two in the figure) middle shells 7, the plurality of middle shells 7 are connected end to end and located between the first end shell 1 and the second end shell 10, and the rotating shaft 17 passes through the corresponding through hole of the second end shell 10.

[0024] In order to realize better reliable support and guiding function for the rotating shaft 17, the middle part of the second end shell 10 is protruded to form a guiding sleeve 14 away from the first end shell 1, and the rotating shaft 17 passes through the center through hole of the guiding sleeve 14, and the shaft sleeve 15 is installed between the inner wall of the guiding sleeve 14 and the outer wall of the rotating shaft 17.

[0025] As Figs. 1-3As shown, in use, the belt switch angular displacement potentiometer is installed on corresponding components of a system, such as a control panel, the power supply lines and signal lines of the detection assembly and the switch assembly are connected to external devices, the first terminal 54 and the third terminal 57 are connected in series on a line that needs to be controlled by the switch, the first terminal 54 is connected to a corresponding signal source, and the second terminal 56 is connected to the switch-off feedback signal output end; the user performs angular displacement detection and switch control on the associated device through the rotating shaft 17; in the switch control process, when the rotating shaft 17 drives the switch insulating sleeve 3, the switch spring 2 and the switch brush 4 to rotate, the two switch brushes 4 are in contact and slide on the inner conductive belt 52 and the outer conductive belt 51 respectively, at this time, the switch is in a connected state, when the corresponding switch brush 4 is disconnected from the outer conductive belt 51 and is in contact with the block-shaped conductive belt 55, the switch is in a disconnected state, at this time, the signal of the first terminal 54 is output through the third terminal 57 to output the switch-off feedback signal, at the same time, the convex strip 81 on the switch torque sleeve 8 is in contact with the ball bearing on the glass bead screw 3, a hand feeling of increased resistance and a collision sound are generated, prompting the user that the switch has been switched from on to off.

[0026] The above embodiments are only preferred embodiments of the present application, and are not a limitation on the technical scheme of the present application, and any technical scheme that can be realized on the basis of the above embodiments without creative labor should be considered to fall within the protection scope of the patent of the present application.

Claims

1. A switch starting position adjustable potentiometer with switch angle displacement, comprising a shell, a rotating shaft, a detection assembly and a switch assembly, the rotating shaft passes through a corresponding through hole of the shell, the outer end of the rotating shaft is located outside the shell, the inner end of the rotating shaft is located inside the shell, the detection assembly and the switch assembly are respectively installed in the shell and connected with the rotating shaft, characterized in that: The switch starting position adjustable switch angle displacement potentiometer further comprises a ball screw, a switch torque sleeve and a locking screw, the outer wall of the switch torque sleeve is provided with a convex strip protruding outward and parallel to the axial direction of the switch torque sleeve, the switch torque sleeve is sleeved on the rotating shaft through the central through hole of the switch torque sleeve, the pipe wall of the switch torque sleeve is provided with a radial screw hole, and the locking screw is installed in the radial screw hole and tightly presses against the outer wall of the rotating shaft, the ball screw is installed in the corresponding screw hole on the shell, and the ball of the ball screw is close to the outer wall of the switch torque sleeve, and the axial direction of the ball screw is perpendicular to the axial direction of the switch torque sleeve.

2. The switch-starting-position-adjustable potentiometer with a switch angular displacement according to claim 1, characterized in that: The outer wall of the rotating shaft is provided with one or more concave planes at the position corresponding to the switch torque sleeve, and the planes are filled with sealant between the inner wall of the switch torque sleeve.

3. The switch-starting-position-adjustable potentiometer with a switch angular displacement according to claim 1 or 2, characterized in that: The detection assembly comprises a resistance body, a detection insulating sleeve, a detection reed and a detection brush, the resistance body is installed on the corresponding inner wall of the shell, the detection insulating sleeve is sleeved outside the rotating shaft, the detection reed is installed on the detection insulating sleeve, and the detection brush is installed on the detection reed and contacts the working band on the resistance body; the switch assembly comprises a switch printed board, a switch insulating sleeve, a switch reed and a switch brush, the switch printed board is installed on the corresponding inner wall of the shell, the switch insulating sleeve is sleeved outside the rotating shaft, the switch reed is installed on the switch insulating sleeve, and the switch brush is installed on the switch reed and contacts the conductive band on the switch printed board.

4. The switch-starting-position-adjustable potentiometer with a switch angular displacement according to claim 3, characterized in that: The conductive band on the switch printed board comprises a circular ring-shaped and closed inner conductive band, a circular ring-shaped and open outer conductive band and a block-shaped conductive band, the switch printed board is provided with a first wiring terminal, a second wiring terminal and a third wiring terminal at the position outside the outer conductive band, the inner conductive band is connected with the first wiring terminal through a connecting conductive band passing through the opening of the outer conductive band, the outer conductive band is connected with the second wiring terminal, the block-shaped conductive band is located in the opening of the outer conductive band and does not contact the inner conductive band, the connecting conductive band and the outer conductive band and is located on the same circumference with the outer conductive band, the block-shaped conductive band is connected with the third wiring terminal, and two switch brushes are installed on the switch reed, one of the switch brushes always contacts the inner conductive band during the rotation of the switch insulating sleeve, and the other switch brush contacts the outer conductive band or the block-shaped conductive band during the rotation of the switch insulating sleeve.

5. The switch-starting-position-adjustable potentiometer with a switch angular displacement according to claim 1 or 2, characterized in that: The shell comprises a first end shell, a second end shell and a plurality of middle shells connected with each other, a plurality of the middle shells are connected head to tail with each other and located between the first end shell and the second end shell, and the rotating shaft passes through the corresponding through hole of the second end shell.

6. The switch-starting-position-adjustable potentiometer with a switch angular displacement according to claim 5, characterized in that: The middle part of the second end shell protrudes in the direction away from the first end shell to form a guide sleeve, and the rotating shaft passes through the central through hole of the guide sleeve, and a shaft sleeve is installed between the inner wall of the guide sleeve and the outer wall of the rotating shaft.

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