Knob type dustproof potentiometer

Abstract

The utility model discloses a knob type dustproof potentiometer, and relates to the technical field of potentiometers. The device comprises: a plug housing; the inner wall of the inserting shell is fixedly connected with the outer wall of the top of the connecting mechanism; the outer wall of the symmetrical connecting plate is fixedly connected with the inner wall of the connecting mechanism; the outer wall of the communicating plate is fixedly connected with the inner wall of the connecting mechanism; the outer wall of the knob mechanism is rotationally connected with the side wall in the connecting mechanism; the inner wall of the dustproof mechanism is connected with the outer wall of the bottom of the connecting mechanism in an inserted mode. The dustproof mechanism comprises a sealing ring, the top of the sealing ring is fixedly connected with a shielding disc, the outer side wall of the shielding disc is fixedly connected with a connecting block, an insertion hole is formed in the wall of the connecting block, and the sealing ring and the shielding disc are located at the bottom of the potentiometer, so that a gap at the bottom of the potentiometer is shielded, and dust is prevented from entering the potentiometer; the purpose of preventing dust from affecting circuit conduction is achieved.

Description

Technical Field

[0001] This utility model relates to the field of potentiometer technology, specifically to a rotary dustproof potentiometer. Background Technology

[0002] In the field of electronic equipment, potentiometers are a commonly used electronic component, widely applied in various circuit adjustments. However, traditional potentiometers often present some problems during use. Firstly, potentiometers are susceptible to dust. Due to a lack of effective dust prevention measures, dust can easily enter the potentiometer, affecting circuit conductivity and leading to performance degradation or even damage. Secondly, their ease of operation and accuracy need improvement. With existing potentiometers, users often find it difficult to accurately determine the degree of adjustment, making operation inconvenient.

[0003] This invention effectively prevents dust from entering by installing a sealing ring and a shielding plate at the bottom of the potentiometer, thus ensuring its normal operating performance. Simultaneously, the elastic plate in the connecting mechanism provides elastic support and contact for the knob mechanism, generating segmented vibrations while fixing the knob mechanism's position. This facilitates accurate potentiometer adjustment by the user, improving operational convenience and accuracy. Utility Model Content

[0004] To address the shortcomings of existing technologies, the technical solution adopted by this utility model is as follows: a rotary dustproof potentiometer, comprising: a plug-in housing; a connecting mechanism, wherein the inner wall of the plug-in housing is fixedly connected to the outer wall of the top of the connecting mechanism; a symmetrical connecting plate, wherein the outer wall of the symmetrical connecting plate is fixedly connected to the inner wall of the connecting mechanism; a connecting plate, wherein the outer wall of the connecting plate is fixedly connected to the inner wall of the connecting mechanism; a rotary mechanism, wherein the outer wall of the rotary mechanism is rotatably connected to the inner side wall of the connecting mechanism; and a dustproof mechanism, wherein the inner wall of the dustproof mechanism is inserted into the outer wall of the bottom of the connecting mechanism. The dustproof mechanism includes a sealing ring, wherein a shielding plate is fixedly connected to the top of the sealing ring, and a connecting block is fixedly connected to the outer side wall of the shielding plate. An insertion hole is provided in the wall of the connecting block. By setting the sealing ring and the shielding plate at the bottom of the potentiometer, the gap at the bottom of the potentiometer is shielded, preventing dust from entering the interior of the potentiometer. This can prevent dust from affecting the conductivity of the circuit and ensure the normal operating performance of the potentiometer.

[0005] Preferably, the connecting mechanism includes a support frame, a communicating groove is provided in the wall of the support frame, an mounting protrusion is fixedly connected to the inner wall of the support frame, and an elastic sheet is inserted into the outer wall of the top of the support frame.

[0006] Preferably, the outer wall of the support frame is fixedly connected to the outer wall of the plug-in shell, the outer wall of the plug-in shell is fixedly connected to the top of the elastic sheet, the outer wall of the bottom of the support frame is plugged into the inner wall of the connecting block through an insertion hole, the inner wall of the support frame is fixedly connected to the outer wall of the symmetrical connecting plate through a connecting groove, the outer wall of the symmetrical connecting plate is fixedly connected to the outer wall of the mounting protrusion, and the inner wall of the support frame is fixedly connected to the outer wall of the connecting plate through a connecting groove.

[0007] Preferably, the knob mechanism includes a rotating column, the outer wall of the top of the rotating column has a torsion groove, the outer wall of the bottom of the rotating column is fixedly connected to a positioning protrusion ring through a connecting square hole, and the connecting square hole is opened in the wall of the positioning protrusion ring. A resistor is fixedly connected to the bottom of the positioning protrusion ring, the outer wall of the bottom of the resistor is slidably connected to the outer wall of the symmetrical connecting plate, the outer wall of the bottom of the resistor is slidably connected to the outer wall of the connecting plate, the outer wall of the positioning protrusion ring is rotatably connected to the inner side wall of the support frame, and the top of the positioning protrusion ring is slidably connected to the bottom of the elastic piece. By setting the elastic piece in the connecting mechanism, the knob mechanism is provided with elastic support and contact. On the one hand, the position of the knob mechanism can be fixed, and on the other hand, when the user rotates the knob, the contact between the arc-shaped protrusion in the middle of the elastic piece and the protrusion block of the positioning protrusion ring will produce a segmented vibration, which makes it convenient for the user to adjust the potentiometer and improves the convenience and accuracy of operation.

[0008] The beneficial effects of this utility model are as follows:

[0009] 1. This utility model uses a sealing ring and a shielding plate located at the bottom of the potentiometer to shield the gaps at the bottom of the potentiometer, preventing dust from entering the potentiometer. This avoids dust affecting the conductivity of the circuit and ensures the normal operating performance of the potentiometer.

[0010] 2. This utility model provides elastic support and contact for the knob mechanism by setting an elastic plate in the connecting mechanism. On the one hand, it can fix the position of the knob mechanism. On the other hand, when the user rotates the knob, the contact between the arc-shaped protrusion in the middle of the elastic plate and the protrusion of the positioning ring will produce a segmented vibration, which makes it convenient for the user to adjust the potentiometer and improves the convenience and accuracy of operation. Attached Figure Description

[0011] Figure 1 This is the front view of this utility model;

[0012] Figure 2 This is an exploded view of this utility model;

[0013] Figure 3 This is a schematic diagram of the connection mechanism of this utility model;

[0014] Figure 4 This is a schematic diagram of the knob mechanism of this utility model;

[0015] Figure 5 This is a schematic diagram of the dustproof mechanism of this utility model.

[0016] In the diagram: 1. Insert shell; 2. Connecting mechanism; 3. Symmetrical connecting plate; 4. Connecting plate; 5. Knob mechanism; 6. Dustproof mechanism; 21. Support frame; 22. Connecting groove; 23. Mounting protrusion; 24. Elastic sheet; 51. Rotating column; 52. Torsion groove; 53. Connecting square hole; 54. Positioning protrusion ring; 55. Resistance sheet; 61. Sealing ring; 62. Shielding plate; 63. Connecting block; 64. Insertion hole. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.

[0018] Example: Please refer to Figure 1 - Figure 5 This utility model provides a technical solution: a rotary dustproof potentiometer, comprising: a plug-in housing 1; a connecting mechanism 2, the inner wall of the plug-in housing 1 being fixedly connected to the outer wall of the top of the connecting mechanism 2; a symmetrical connecting plate 3, the outer wall of the symmetrical connecting plate 3 being fixedly connected to the inner wall of the connecting mechanism 2; a connecting plate 4, the outer wall of the connecting plate 4 being fixedly connected to the inner wall of the connecting mechanism 2; a rotary mechanism 5, the outer wall of the rotary mechanism 5 being rotatably connected to the inner side wall of the connecting mechanism 2; and a dustproof mechanism 6, the inner wall of the dustproof mechanism 6 being plugged into the outer wall of the bottom of the connecting mechanism 2; the dustproof mechanism 6 includes a sealing ring 61. A shielding plate 62 is fixedly connected to the top of the sealing ring 61. A connecting block 63 is fixedly connected to the outer side wall of the shielding plate 62. An insertion hole 64 is provided in the wall of the connecting block 63. The connecting block 63 is inserted into the outer wall of the bottom of the support frame 21 through the insertion hole 64, thereby fixing the position of the shielding plate 62 and the sealing ring 62, which plays a role in dust prevention, shielding the gap at the bottom of the potentiometer, preventing dust from entering the potentiometer, and thus preventing it from affecting the conductivity of the circuit. The sealing ring 61 ensures the sealing of the connection at the bottom of the potentiometer, and the shielding plate 62 can effectively block dust.

[0019] The connecting mechanism 2 includes a support frame 21, a connecting groove 22 is provided in the wall of the support frame 21, an mounting protrusion 23 is fixedly connected to the inner wall of the support frame 21, and an elastic piece 24 is inserted into the outer wall of the top of the support frame 21.

[0020] The outer wall of the support frame 21 is fixedly connected to the outer wall of the plug-in shell 1. The outer wall of the plug-in shell 1 is fixedly connected to the top of the elastic sheet 24. The outer wall of the bottom of the support frame 21 is inserted into the inner wall of the connecting block 63 through the insertion hole 64. The inner wall of the support frame 21 is fixedly connected to the outer wall of the symmetrical connecting plate 3 through the connecting groove 22. The outer wall of the symmetrical connecting plate 3 is fixedly connected to the outer wall of the mounting protrusion 23. The inner wall of the support frame 21 is fixedly connected to the outer wall of the connecting plate 4 through the connecting groove 22.

[0021] The knob mechanism 5 includes a rotating column 51. A torsion groove 52 is formed on the outer wall of the top of the rotating column 51. A positioning protrusion ring 54 is fixedly connected to the outer wall of the bottom of the rotating column 51 through a connecting square hole 53, and the connecting square hole 53 is formed in the wall of the positioning protrusion ring 54. A resistance piece 55 is fixedly connected to the bottom of the positioning protrusion ring 54. The outer wall of the bottom of the resistance piece 55 is slidably connected to the outer wall of the symmetrical connecting plate 3, and the outer wall of the bottom of the resistance piece 55 is slidably connected to the outer wall of the connecting plate 4. The outer wall of the positioning protrusion ring 54 is rotatably connected to the inner side wall of the support frame 21. The top of the positioning ring 54 is slidably connected to the bottom of the elastic plate 24. During use, the support frame 21 provides elastic support and contact for the knob mechanism 5 through the fixed elastic plate 24. The arc-shaped protrusion in the middle of the elastic plate 24 extends downward and fits between the protrusions of the positioning ring 54. In addition to fixing the position of the knob mechanism 5, it also allows the user to clearly feel the segmented vibration when rotating, which is convenient for adjusting the potentiometer. The torsion groove 52 on the top of the rotating column 51 of the knob mechanism 5 facilitates the user's rotation operation.

[0022] Working principle:

[0023] In use, the sealing ring 61 and the shielding plate 62 of the dustproof mechanism 6 are located at the bottom of the potentiometer, shielding the bottom of the potentiometer. The connecting block 63 is inserted into the outer wall of the bottom of the support frame 21 through the insertion hole 64, thereby fixing the position of the shielding plate 62 and the sealing ring 61, thus playing a dustproof role. It shields the gap at the bottom of the potentiometer, preventing dust from entering the potentiometer and thus preventing it from affecting the conductivity of the circuit. The sealing ring 61 ensures the sealing of the connection at the bottom of the potentiometer, and the shielding plate 62 can effectively block dust. Since the top of the potentiometer is blocked by the connecting mechanism 2 and the knob mechanism 5, the entire device has a compact structure, is easy to operate, and has a dustproof effect, thereby improving the reliability and service life of the potentiometer.

[0024] The plug-in housing 1 provides external protection and a connection base for the entire potentiometer. The support frame 21 of the connection mechanism 2 is fixedly connected to the symmetrical connection plate 3 and the connecting plate 4 through the connecting groove 22 to ensure the stability of the circuit connection. The mounting protrusion 23 is used to fix the position of the internal symmetrical connection plate 3. In use, the support frame 21 provides a certain elastic support and contact for the knob mechanism 5 through the fixed elastic sheet 24. The arc-shaped protrusion in the middle of the elastic sheet 24 extends downward and fits between the protrusions of the positioning protrusion ring 54. In addition to fixing the position of the knob mechanism 5, it also allows the user to clearly feel the segmented vibration when rotating, which is convenient for adjusting the potentiometer. The torsion groove 52 on the top of the rotating column 51 of the knob mechanism 5 facilitates the user's rotation operation. When the rotating column 51 rotates, it will drive the positioning protrusion ring 54 at the bottom to rotate on the inner side wall of the support frame 21 through the connecting square hole 53, thereby driving the resistor 55 to slide on the symmetrical connection plate 3 and the connecting plate 4, thereby changing the resistance value of the connected circuit and realizing the adjustment of the circuit parameters.

[0025] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A dust-proof rotary knob potentiometer characterized by comprising: Include: Plug shell (1); Connecting mechanism (2), the inner wall of the plug shell (1) is fixedly connected with the outer wall of the top of the connecting mechanism (2); Symmetrical connecting plate (3), the outer wall of the symmetrical connecting plate (3) is fixedly connected with the inner wall of the connecting mechanism (2); The outer wall of the communication plate (4) is fixedly connected with the inner wall of the connecting mechanism (2); Knob mechanism (5), the outer wall of the knob mechanism (5) is rotatably connected with the side wall inside the connecting mechanism (2); Dustproof mechanism (6), the inner wall of the dustproof mechanism (6) is inserted with the outer wall of the bottom of the connecting mechanism (2); The dustproof mechanism (6) includes a sealing ring (61), the top of the sealing ring (61) is fixedly connected with a shielding disc (62), the side wall outside the shielding disc (62) is fixedly connected with a connecting block (63), and the wall of the connecting block (63) is provided with an insertion hole (64).

2. A knob type dustproof potentiometer according to claim 1, characterized in that: The connecting mechanism (2) includes a support frame (21), the wall of the support frame (21) is provided with a communication groove (22), the inner wall of the support frame (21) is fixedly connected with a mounting protrusion (23), and the outer wall of the top of the support frame (21) is inserted with an elastic sheet (24).

3. A knob type dustproof potentiometer according to claim 2, characterized in that: The outer wall of the support frame (21) is fixedly connected with the outer wall of the plug shell (1), the outer wall of the plug shell (1) is fixedly connected with the top of the elastic sheet (24), and the outer wall of the bottom of the support frame (21) is inserted with the inner wall of the connecting block (63) through the insertion hole (64).

4. A knob type dustproof potentiometer according to claim 2, characterized in that: The inner wall of the support frame (21) is fixedly connected with the outer wall of the symmetrical connecting plate (3) through the communication groove (22), the outer wall of the symmetrical connecting plate (3) is fixedly connected with the outer wall of the mounting protrusion (23), and the inner wall of the support frame (21) is fixedly connected with the outer wall of the communication plate (4) through the communication groove (22).

5. A knob type dustproof potentiometer according to claim 2, characterized in that: The knob mechanism (5) includes a rotating column (51), the outer wall of the top of the rotating column (51) is provided with a twisting groove (52), the outer wall of the bottom of the rotating column (51) is fixedly connected with a positioning convex ring (54) through a communication square hole (53), the communication square hole (53) is arranged in the wall of the positioning convex ring (54), and the bottom of the positioning convex ring (54) is fixedly connected with a resistance sheet (55).

6. A knob-type dustproof potentiometer according to claim 5, characterized in that: The outer wall of the bottom of the resistance sheet (55) is slidably connected with the outer wall of the symmetrical connecting plate (3), the outer wall of the bottom of the resistance sheet (55) is slidably connected with the outer wall of the communication plate (4), the outer wall of the positioning convex ring (54) is rotatably connected with the inner side wall of the support frame (21), and the top of the positioning convex ring (54) is slidably connected with the bottom of the elastic sheet (24).

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