An adjustable potentiometer

Abstract

The utility model provides an adjustable potentiometer, which relates to the technical field of potentiometers and comprises a potentiometer body. An upper shell and a lower shell are movably sleeved on the outer surface of the potentiometer body. A fixing structure is fixedly arranged between the upper shell and the lower shell. When a user needs to disassemble the outer shell of the potentiometer for inspection, the user can drive a limit rod to move to a side away from the lower shell so that the limit rod is separated from a connecting block, thereby releasing the limit on the connecting block by the limit rod. The user can then remove the upper shell to complete the disassembly of the outer shell of the potentiometer, so that the user can inspect the internal potentiometer body. The structure simplifies the disassembly process of the outer shell of the potentiometer and improves the disassembly efficiency of the outer shell to a certain extent.

Description

Technical Field

[0001] The utility model relates to the technical field of potentiometers, in particular to an adjustable potentiometer. Background Art

[0002] Potentiometer is a kind of resistance element, and there are two common types: rotary potentiometer and sliding potentiometer. It can adjust its resistance value as needed, usually composed of a resistor body and a movable brush. In the circuit, the potentiometer can be used as a means to adjust the circuit parameters, such as adjusting voltage, resistance or signal gain. Common potentiometers are of two types: knob potentiometer and sliding rheostat. They have different applications in different scenarios, such as adjusting volume, brightness or realizing adjustment. Potentiometers play an important role in electronic devices. The circuit parameters can be controlled by adjusting the resistance value or position of the potentiometer.

[0003] The existing adjustable potentiometer mainly includes an upper and lower shell, a rotating shaft, a resistor and a terminal, wherein the lower shell of the potentiometer is fixed to the terminal, and the upper shell and the lower shell are combined to protect the internal structure. The combination of the upper shell and the lower shell is usually fixed by using screws. When the user needs to install or remove the shell of the potentiometer, a tool is required. The screws are rotated several times by the tool to release the fixing of the upper and lower shells by the screws, thereby completing the removal of the shell of the potentiometer, so that the user can detect the internal structure of the potentiometer. This disassembly method makes the user's installation and disassembly operations of the shell of the potentiometer more cumbersome.

[0004] Therefore, it is necessary to provide a new adjustable potentiometer to solve the above-mentioned technical problems. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides an adjustable potentiometer.

[0006] The adjustable potentiometer provided by the utility model comprises a potentiometer body, an upper shell and a lower shell are movably sleeved on the outer surface of the potentiometer body, and a fixing structure is fixed between the upper shell and the lower shell;

[0007] The fixing structure includes a fixing part and a limiting part, one side of the fixing part is fixedly connected to the outer side of the upper shell body, a connecting block is fixedly provided at the bottom of the fixing part, one side of the connecting block is provided with a fixing groove, the bottom of the connecting block extends to the inside of the limiting part, the outer surface of the bottom of the connecting block is movably connected to the inside of the limiting part, one side of the limiting part is fixedly connected to the outer side of the lower shell body, a strip groove communicating with the fixing groove is provided inside the limiting part, a limiting rod is movably provided inside the strip groove, one end of the limiting rod extends to the inside of the fixing groove, the outer surface of the limiting rod is movably connected to the inside of the fixing groove, and the other end of the limiting rod extends out of the strip groove.

[0008] Preferably, the limiting member includes a fixed block, one side of which is fixedly connected to the outer side of the lower shell body, a positioning groove communicating with the strip groove is provided at the top of the fixed block, the outer surface of the connecting block is movably connected to the inside of the positioning groove, a limiting groove communicating with the strip groove is provided inside the fixed block, and an elastic member is movably provided inside the limiting groove.

[0009] Preferably, the elastic member comprises a spring, the spring is movably sleeved on the outer surface of the limiting rod, a limiting plate is fixedly provided on one end of the spring away from the lower shell body, and the outer surface of the limiting plate is movably connected to the inside of the limiting groove.

[0010] Preferably, a pulling piece is fixedly provided at one end of the limiting rod away from the connecting block.

[0011] Preferably, the fixing member comprises a positioning plate, one side of the positioning plate is fixedly connected to the outer side of the upper shell, and the bottom of the positioning plate is fixedly connected to a side of the connecting block away from the fixing block.

[0012] Preferably, an annular block is fixedly provided at the bottom of the upper shell, and an annular groove having the same size as the annular block is opened at the top of the lower shell.

[0013] Compared with the related art, the adjustable potentiometer provided by the utility model has the following beneficial effects:

[0014] When the user needs to disassemble the shell of the potentiometer for inspection, the user can drive the limit rod to move away from the lower shell, so that the limit rod is separated from the connecting block, thereby releasing the limit rod from the connecting block. The user can then remove the upper shell to complete the disassembly of the shell of the potentiometer, so that the user can inspect the internal potentiometer body. This structure simplifies the disassembly process of the shell of the potentiometer and improves the efficiency of shell disassembly to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The overall structure of the adjustable potentiometer provided by the utility model is shown in FIG. Figure 1 ;

[0016] Figure 2 The complete structure diagram of the adjustable potentiometer provided by the utility model Figure 2 ;

[0017] Figure 3 for Figure 2 An enlarged structural schematic diagram of A shown in FIG.

[0018] Figure 4 for Figure 2 Schematic diagram of the local explosion structure shown;

[0019] Figure 5 for Figure 4 The schematic diagram of the local cross-section structure shown;

[0020] Figure 6 for Figure 5 The schematic diagram of the local cross-section structure is shown.

[0021] Numbers in the figure: 1, potentiometer body; 2, upper shell; 3, lower shell; 4, annular block; 5, positioning plate; 6, connecting block; 7, fixing block; 8, limiting rod; 9, spring; 10, limiting plate; 11, pulling piece; 12, annular groove; 13, positioning groove; 14, fixing groove; 15, strip groove; 16, limiting groove. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings and implementation modes.

[0023] Please refer to Figure 1-Figure 5 ,in, Figure 1 The overall structure of the adjustable potentiometer provided by the utility model is shown in FIG. Figure 1 ; Figure 2 The complete structure diagram of the adjustable potentiometer provided by the utility model Figure 2 ; Figure 3 for Figure 2 An enlarged structural schematic diagram of A shown in FIG. Figure 4 for Figure 2 Schematic diagram of the local explosion structure shown; Figure 5 for Figure 4 The schematic diagram of the local cross-section structure shown; Figure 6 for Figure 5 The schematic diagram of the local cross-section structure is shown.

[0024] In the specific implementation process, Figure 1-Figure 5As shown, it includes a potentiometer body 1, an upper shell 2 and a lower shell 3 are movably sleeved on the outer surface of the potentiometer body 1, a fixing structure is fixedly arranged between the upper shell 2 and the lower shell 3, and the fixing structure includes a fixing member and a limiting member, one side of the fixing member is fixedly connected to the outer side of the upper shell 2, a connecting block 6 is fixedly arranged at the bottom of the fixing member, one side of the connecting block 6 is provided with a fixing groove 14, the bottom of the connecting block 6 extends to the inside of the limiting member, the outer surface of the bottom of the connecting block 6 is movably connected to the inside of the limiting member, one side of the limiting member is fixedly connected to the outer side of the lower shell 3, and the limiting member is provided with a strip communicating with the fixing groove 14 A limiting rod 8 is movably arranged inside the strip groove 15, one end of the limiting rod 8 extends into the interior of the fixed groove 14, the outer surface of the limiting rod 8 is movably connected with the interior of the fixed groove 14, and the other end of the limiting rod 8 extends out of the strip groove 15, and the limiting member includes a fixed block 7, one side of the fixed block 7 is fixedly connected with the outer side of the lower shell 3, a positioning groove 13 communicating with the strip groove 15 is opened at the top of the fixed block 7, the outer surface of the connecting block 6 is movably connected with the interior of the positioning groove 13, a limiting groove 16 communicating with the strip groove 15 is opened inside the fixed block 7, and an elastic member is movably arranged inside the limiting groove 16, and the elastic member It includes a spring 9, which is movably sleeved on the outer surface of the limit rod 8. A limit plate 10 is fixedly arranged at one end of the spring 9 away from the lower shell 3. The outer surface of the limit plate 10 is movably connected to the inside of the limit groove 16. A pull piece 11 is fixedly arranged at one end of the limit rod 8 away from the connecting block 6. The fixing part includes a positioning plate 5, one side of the positioning plate 5 is fixedly connected to the outer side of the upper shell 2, the bottom of the positioning plate 5 is fixedly connected to the side of the connecting block 6 away from the fixing block 7, an annular block 4 is fixedly arranged at the bottom of the upper shell 2, and an annular groove 12 of the same size as the annular block 4 is opened at the top of the lower shell 3. The annular groove 12 is opposite to the annular block 4. The limiting groove 16 limits the limiting plate 10. When the user needs to install the housing of the potentiometer, the user drives the pulling piece 11 to move outward, thereby driving the limiting rod 8 to move outward. The user then matches the connecting block 6 with the positioning groove 13. The user releases the drive on the pulling piece 11, and the spring 9 changes from a compressed state to an extended state to drive the limiting rod 8 to move toward the connecting block 6. The limiting rod 8 and the connecting block 6 are matched through the fixing groove 14, thereby realizing the fixation of the upper shell 2 and the lower shell 3, and completing the installation of the housing of the potentiometer.

[0025] The working principle provided by the utility model is as follows: when the user needs to disassemble the outer shell of the potentiometer, the user drives the pulling piece 11 to move outward, so that the spring 9 is in a compressed state, and the pulling piece 11 drives the limiting rod 8 to move outward, so that the limiting rod 8 is separated from the connecting block 6, and the limiting of the connecting block 6 by the limiting rod 8 is released, so that the upper shell 2 can be removed, and the disassembly of the outer shell of the potentiometer is completed, so that the user can detect the potentiometer body 1.

[0026] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0027] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. An adjustable potentiometer, characterized in that: It comprises a potentiometer body (1), an upper shell (2) and a lower shell (3) are movably sleeved on the outer surface of the potentiometer body (1), and a fixing structure is fixedly provided between the upper shell (2) and the lower shell (3); The fixing structure comprises a fixing part and a limiting part, one side of the fixing part is fixedly connected to the outer side of the upper shell (2), a connecting block (6) is fixedly provided at the bottom of the fixing part, one side of the connecting block (6) is provided with a fixing groove (14), the bottom of the connecting block (6) extends to the inside of the limiting part, the outer surface of the bottom of the connecting block (6) is movably connected to the inside of the limiting part, one side of the limiting part is fixedly connected to the outer side of the lower shell (3), a strip groove (15) communicating with the fixing groove (14) is provided inside the limiting part, a limiting rod (8) is movably provided inside the strip groove (15), one end of the limiting rod (8) extends to the inside of the fixing groove (14), the outer surface of the limiting rod (8) is movably connected to the inside of the fixing groove (14), and the other end of the limiting rod (8) extends out of the strip groove (15).

2. The adjustable potentiometer according to claim 1, characterized in that: The limiting member comprises a fixed block (7), one side of which is fixedly connected to the outer side of the lower shell (3), a top of the fixed block (7) is provided with a positioning groove (13) which communicates with the strip groove (15), an outer surface of the connecting block (6) is movably connected to the inside of the positioning groove (13), a limiting groove (16) which communicates with the strip groove (15) is provided inside the fixed block (7), and an elastic member is movably provided inside the limiting groove (16).

3. The adjustable potentiometer according to claim 2, characterized in that: The elastic member comprises a spring (9), the spring (9) being movably sleeved on the outer surface of the limiting rod (8), a limiting plate (10) being fixedly provided at one end of the spring (9) away from the lower shell (3), and the outer surface of the limiting plate (10) being movably connected to the inside of the limiting groove (16).

4. The adjustable potentiometer according to claim 3, characterized in that: A pulling piece is fixedly provided at one end of the limiting rod (8) away from the connecting block (6).

5. The adjustable potentiometer according to claim 4, characterized in that: The fixing member comprises a positioning plate (5), one side of the positioning plate (5) is fixedly connected to the outer side of the upper shell (2), and the bottom of the positioning plate (5) is fixedly connected to the side of the connecting block (6) away from the fixing block (7).

6. The adjustable potentiometer according to claim 5, characterized in that: An annular block (4) is fixedly provided at the bottom of the upper shell (2), and an annular groove (12) having the same size as the annular block (4) is provided at the top of the lower shell (3).

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