Potentiometer structure capable of being quickly assembled

Abstract

The utility model relates to the technical field of potentiometers, and discloses a potentiometer structure capable of being quickly assembled, which comprises a potentiometer body, a potentiometer shell is fixedly mounted on the outer surface of the potentiometer body, and a quick fixing component is arranged on the potentiometer shell. The rapid fixing assembly is used for rapidly and firmly fixing the potentiometer body in a mounting hole in a PCB, the rapid fixing assembly comprises a sliding block, a fixing ring, arc-shaped supporting plates, a trapezoidal groove, a locking groove and a fixing cutting edge, and the multiple arc-shaped supporting plates arranged in the rapid fixing assembly are used for fixing the potentiometer body; the problems that in a traditional mode, when a potentiometer is installed, only pins of the potentiometer are inserted into a PCB to be fixed, when a rotating shaft of the potentiometer is subjected to swing force forming a certain angle with the axial direction, contact force between a movable contact in the potentiometer and a resistor body is affected, the surface of the resistor body is damaged, adjustment fails and the like are solved. And the service life of the potentiometer is further influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of potentiometers, in particular to a potentiometer structure that can be assembled quickly. Background Art

[0002] A potentiometer is a resistor element with three terminals and a resistance value that can be adjusted according to a certain change rule. A potentiometer usually consists of a resistor body and a movable brush. When the brush moves along the resistor body, a resistance value or voltage that is related to the displacement is obtained at the output end.

[0003] Traditionally, potentiometers are simply fixed to the PCB by inserting their pins. When the potentiometer's shaft is subjected to a swinging force at a certain angle to its axis, the contact force between the moving contact and the resistor inside the potentiometer is affected. In severe cases, this can damage the resistor surface, causing adjustment failure and shortening the potentiometer's service life. Utility Model Content

[0004] (1) Technical problems solved

[0005] In response to the shortcomings of the existing technology, the utility model provides a potentiometer structure that can be quickly assembled. It can solve the problem that in the traditional method, the potentiometer is only fixed by inserting its pins into the PCB board during installation. When the rotating shaft of the potentiometer is subjected to a swing force at a certain angle to the axial direction, the contact force between the moving contact and the resistor inside the potentiometer is affected. In severe cases, the surface of the resistor body may be damaged, the adjustment may fail, and the service life of the potentiometer may be shortened.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a potentiometer structure that can be quickly assembled, comprising a potentiometer body, a potentiometer housing fixedly mounted on the outer surface of the potentiometer body, and a quick fixing assembly provided on the potentiometer housing, the quick fixing assembly being used to quickly and firmly fix the potentiometer body in a mounting hole on a PCB board;

[0008] The quick fixing assembly includes a slider, a fixing ring, an arc-shaped support plate, a trapezoidal groove, a locking groove and a fixed cutting edge;

[0009] The upper surface of the fixing ring in the quick fixing assembly is fixedly connected with a rotating sleeve, the rotating sleeve is rotatably connected to the outer surface of the potentiometer housing, and a plurality of spiral slide rails are fixedly connected inside the fixing ring.

[0010] Preferably, a plurality of slide grooves are provided at the bottom of the potentiometer housing, the sliders are slidably connected in the slide grooves, the outer surfaces of the sliders are provided with slide grooves, and a plurality of spiral slide rails are slidably connected to the inner walls of the corresponding slide grooves.

[0011] Preferably, a fixing frame is fixedly connected between the plurality of spiral slide rails, the fixing frame is used to fix the plurality of spiral slide rails, and the spiral slide rails are used to drive the plurality of sliders to open and close.

[0012] Preferably, a fixing column is fixedly connected to the outer surface of the sliding block, a plurality of arc-shaped support plates are respectively fixedly connected to the corresponding fixing columns, and a trapezoidal groove is provided on the outer surface of the arc-shaped support plates.

[0013] Preferably, the plurality of locking grooves are all provided on the bottom wall of the trapezoidal groove, and a fixed cutting edge is formed between two adjacent locking grooves, and the fixed cutting edge is used to fix the inner wall of the mounting hole of the PCB board.

[0014] Preferably, a screw fixing plate is fixedly connected to the outer surface of the rotating sleeve, and a hand screw is threadedly connected to the screw fixing plate, and the hand screw is used to tighten the potentiometer housing.

[0015] (3) Beneficial effects

[0016] Compared with the prior art, the present invention provides a potentiometer structure that can be quickly assembled, which has the following beneficial effects:

[0017] 1. This quick-assembly potentiometer structure fixes the potentiometer body by means of multiple arc-shaped support plates provided in a quick fixing assembly. This avoids the problem in the traditional method where the potentiometer is fixed only by inserting its pins into the PCB board during installation. When the potentiometer shaft is subjected to a swing force at a certain angle to the axial direction, the contact force between the moving contact inside the potentiometer and the resistor body is affected. In severe cases, the surface of the resistor body may be damaged, the adjustment may fail, and the service life of the potentiometer may be shortened.

[0018] 2. The potentiometer structure that can be quickly assembled, by rotating the rotating sleeve in the opposite direction, the rotating sleeve can drive the multiple arc-shaped support plates to expand outward until the trapezoidal groove on the arc-shaped support plate contacts the edge of the PCB board mounting hole, and then the rotating sleeve is continuously tightened, which allows the fixed cutting edge to be inserted into the inner wall of the PCB board mounting hole. At this time, by tightening the hand screw, the hand screw can tighten the potentiometer housing, thereby limiting the position of the rotating sleeve, and further ensuring that the opening of the multiple arc-shaped support plates can be stably restricted. This enables the potentiometer body to be quickly and effectively installed and disassembled from the potentiometer housing when the potentiometer body screws its adjusting shaft, thereby improving the assembly efficiency of the potentiometer body. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the spiral slide rail of the utility model;

[0021] Figure 3 For this utility modelFigure 2 Schematic diagram of the enlarged structure at position A in the middle.

[0022] In the figure: 1. Potentiometer body; 2. Potentiometer housing; 3. Slide groove; 4. Slide block; 5. Slide groove; 6. Fixed ring; 7. Spiral slide rail; 8. Fixed bracket; 9. Arc-shaped support plate; 10. Fixed column; 11. Trapezoidal groove; 12. Locking groove; 13. Rotating sleeve; 14. Screw fixing plate; 15. Hand-tightening screw; 16. Fixed cutting edge. Specific implementation manner

[0023] This part will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the drawings. The role of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present invention. However, it should not be construed as a limitation on the protection scope of the present invention.

[0024] In the description of the present invention, it should be understood that for the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the present invention.

[0025] In the description of the present invention, greater than, less than, exceeding, etc. are understood as not including the number itself, above, below, within, etc. are understood as including the number itself. If the first and second are described, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or the sequence relationship of the indicated technical features.

[0026] In the description of the present invention, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0027] Please refer to Figures 1-3 , the present invention provides a new technical solution: a potentiometer structure that can be quickly assembled, including a potentiometer body 1. The outer surface of the potentiometer body 1 is fixedly installed with a potentiometer housing 2. A quick-fixing component is provided on the potentiometer housing 2. The quick-fixing component is used to quickly and firmly fix the potentiometer body 1 in the mounting hole on the PCB board;

[0028] The quick-fixing component includes a slide block 4, a fixed ring 6, an arc-shaped support plate 9, a trapezoidal groove 11, a locking groove 12, and a fixed cutting edge 16.

[0029] Further, a rotating sleeve 13 is fixedly connected to the upper surface of the fixing ring 6 in the quick-fixing component. The rotating sleeve 13 is rotatably connected to the outer surface of the potentiometer housing 2. A plurality of spiral slide rails 7 are fixedly connected inside the fixing ring 6.

[0030] Further, a plurality of sliding grooves 3 are formed at the bottom of the potentiometer housing 2. The sliders 4 are all slidably connected in the sliding grooves 3. Sliding grooves 5 are formed on the outer surfaces of the sliders 4. The plurality of spiral slide rails 7 are respectively slidably connected to the inner walls of the corresponding sliding grooves 5.

[0031] Further, a fixing frame 8 is fixedly connected between the plurality of spiral slide rails 7. The fixing frame 8 is used to fix the plurality of spiral slide rails 7. The spiral slide rails 7 are used to drive the plurality of sliders 4 to open and close.

[0032] Further, a fixing column 10 is fixedly connected to the outer surface of the slider 4. The plurality of arc-shaped support plates 9 are respectively fixedly connected to the corresponding fixing columns 10. A trapezoidal groove 11 is formed on the outer surface of the arc-shaped support plate 9.

[0033] Further, a plurality of locking grooves 12 are formed on the bottom wall of the trapezoidal groove 11. A fixing edge 16 is formed between two adjacent locking grooves 12. The fixing edge 16 is used to fix the inner wall of the mounting hole of the PCB board.

[0034] Further, a screw fixing plate 14 is fixedly connected to the outer surface of the rotating sleeve 13. A hand-tightening screw 15 is threadedly connected to the screw fixing plate 14. The hand-tightening screw 15 is used to tighten the potentiometer housing 2.

[0035] Further, when in use, by loosening the hand-tightening screw 15, the end of the hand-tightening screw 15 is separated from the potentiometer housing 2. At this time, by rotating the rotating sleeve 13, the rotating sleeve 13 can drive the plurality of spiral slide rails 7 to rotate together through the rotating sleeve 13 thereon. When the plurality of spiral slide rails 7 rotate, they can drive the plurality of sliders 4 to contract inward simultaneously through the sliding grooves 5 on themselves. At this time, the plurality of sliders 4 will drive the plurality of arc-shaped support plates 9 to contract simultaneously through the fixing columns 10 thereon. Then, the contracted plurality of arc-shaped support plates 9 are inserted into the mounting holes of the PCB board. Then, the rotating sleeve 13 is rotated in the reverse direction. The rotating sleeve 13 can drive the plurality of arc-shaped support plates 9 to expand outward until the trapezoidal groove 11 on the arc-shaped support plate 9 contacts the edge position of the PCB board mounting hole. Then, the rotating sleeve 13 is continuously tightened, which causes the fixing edge 16 to be inserted into the inner wall of the PCB board mounting hole. At this time, by tightening the hand-tightening screw 15, the hand-tightening screw 15 can tighten the potentiometer housing 2, thereby restricting the position of the rotating sleeve 13. Furthermore, the opening of the plurality of arc-shaped support plates 9 can be stably restricted. This enables the potentiometer body 1 to be quickly and effectively installed and disassembled with the potentiometer housing 2 when the potentiometer body 1 screws its adjustment shaft, improving the assembly efficiency of the potentiometer body 1.

[0036] Furthermore, the potentiometer body 1 is fixed by a plurality of arc-shaped support plates 9 provided in the quick-fixing component, which avoids the problem that in the traditional method, the potentiometer is fixed only by inserting its pins into the PCB board during installation. When the rotating shaft of the potentiometer is subjected to a swinging force at a certain angle with the axis, it affects the contact force between the moving contact and the resistor body inside the potentiometer, and in severe cases, it will cause damage to the surface of the resistor body and adjustment failure, thereby affecting the service life of the potentiometer.

[0037] Working principle: When in use, by loosening the hand-tightening screw 15, the end of the hand-tightening screw 15 is separated from the potentiometer housing 2. At this time, by rotating the rotating sleeve 13, the rotating sleeve 13 can drive a plurality of spiral slide rails 7 to rotate together through the rotating sleeve 13 thereon. When the plurality of spiral slide rails 7 rotate, they can drive a plurality of sliders 4 to contract inward simultaneously through the chutes 5 on themselves. At this time, the plurality of sliders 4 will drive a plurality of arc-shaped support plates 9 to contract simultaneously through the fixing posts 10 thereon. Then, the contracted plurality of arc-shaped support plates 9 are inserted into the mounting holes of the PCB board. Then, the rotating sleeve 13 is rotated in the reverse direction, and the rotating sleeve 13 can drive the plurality of arc-shaped support plates 9 to expand outward until the trapezoidal grooves 11 on the arc-shaped support plates 9 contact the edge position of the PCB board mounting hole. Then, the rotating sleeve 13 is continuously tightened, which makes the fixing blade 16 inserted into the inner wall of the PCB board mounting hole. At this time, by tightening the hand-tightening screw 15, the hand-tightening screw 15 can press the potentiometer housing 2 tightly, thereby restricting the position of the rotating sleeve 13, and further enabling the expansion of the plurality of arc-shaped support plates 9 to be stably restricted.

[0038] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A potentiometer structure that can be quickly assembled, characterized in that: Potentiometer body (1), a potentiometer housing (2) is fixedly installed on the outer surface of the potentiometer body (1), and a quick-fixing component is arranged on the potentiometer housing (2). The quick-fixing component is used to quickly and firmly fix the potentiometer body (1) in the mounting hole on the PCB board; The quick-fixing component includes a slider (4), a fixing ring (6), an arc-shaped support plate (9), a trapezoidal groove (11), a locking groove (12) and a fixing edge (16); On the upper surface of the fixing ring (6) in the quick-fixing component, a rotating sleeve (13) is fixedly connected. The rotating sleeve (13) is rotatably connected to the outer surface of the potentiometer housing (2), and a plurality of spiral slide rails (7) are fixedly connected inside the fixing ring (6).

2. The potentiometer structure capable of being quickly assembled according to claim 1, wherein: A plurality of sliding grooves (3) are opened at the bottom of the potentiometer housing (2). The sliders (4) are all slidably connected in the sliding grooves (3). Sliding grooves (5) are opened on the outer surfaces of the sliders (4), and the plurality of spiral slide rails (7) are respectively slidably connected to the inner walls of the corresponding sliding grooves (5).

3. The potentiometer structure capable of being quickly assembled according to claim 2, wherein: A fixing frame (8) is fixedly connected between the plurality of spiral slide rails (7). The fixing frame (8) is used to fix the plurality of spiral slide rails (7), and the spiral slide rails (7) are used to drive the plurality of sliders (4) to open and close.

4. A potentiometer structure capable of rapid assembly according to claim 3, characterized in that: A fixing column (10) is fixedly connected to the outer surface of the slider (4), and the plurality of arc-shaped support plates (9) are respectively fixedly connected to the corresponding fixing columns (IO). A trapezoidal groove (11) is opened on the outer surface of the arc-shaped support plate (9).

5. A potentiometer structure that can be quickly assembled according to claim 4, characterized in that: A plurality of the locking grooves (12) are all opened on the bottom wall of the trapezoidal groove (11). A fixing edge (16) is formed between adjacent two locking grooves (12). The fixing edge (16) is used to fix the inner wall of the mounting hole of the PCB board.

6. A potentiometer structure that can be quickly assembled according to claim 1, characterized in that: A screw fixing plate (14) is fixedly connected to the outer surface of the rotating sleeve (13). A hand-tightening screw (15) is threadedly connected to the screw fixing plate (14). The hand-tightening screw (15) is used to press tightly against the potentiometer housing (2).

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