Four-connection straight pin rotary potentiometer
By designing a four-pin rotary potentiometer, protective sleeves and limiting devices are used to isolate the pins from harmful substances, solving the problem of pins being easily damaged in humid or corrosive gas environments, and achieving the stability and corrosion resistance of the potentiometer.
Patent Information
- Application Number
- CN202520114594.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-17
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-01-17
AI Technical Summary
The pins of existing potentiometers are susceptible to chemical corrosion damage in humid or corrosive gas environments.
It adopts a four-pin rotary potentiometer, and through the design of fixed and movable protective sleeves on the pins, it isolates the pins from direct contact with harmful substances. The limiting device and slider structure ensure the stable movement and installation of the protective sleeves.
It effectively protects the through-hole pins from chemical corrosion, ensuring the potentiometer functions properly in harsh environments.
Smart Images
Figure CN223927150U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to potentiometer technical field especially relates to four joint straight pin rotary potentiometer. BACKGROUND
[0002] Potentiometer is usually composed of resistance body and movable brush (or called contact point, slider, rotating disc), resistance body is the core part of potentiometer, and brush is used to change the contact position on resistance body to change resistance value, and potentiometer is a very important electronic component and has wide application in electronic equipment.
[0003] Potentiometer is installed into the circuit board through the welding straight pin, the straight pin is directly exposed outside, when facing humid, corrosive gas and other occasions, harmful substances directly contact with the straight pin, resulting in the straight pin being chemically corroded and being damaged. UTILITY MODEL CONTENT
[0004] The utility model discloses a four joint straight pin rotary potentiometer to solve the shortcomings in the prior art.
[0005] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:
[0006] Four joint straight pin rotary potentiometer, including four joint straight pin rotary potentiometer main body 1, four groups of straight pins are installed on the four joint straight pin rotary potentiometer main body, the fixed protective sleeve is fixedly sleeved on the straight pin, the movable protective sleeve is slidably arranged in the fixed protective sleeve, and the movable protective sleeve is sleeved on the straight pin, a first limiting hole is formed in one side of the straight pin, a second limiting hole corresponding to the first limiting hole is formed in one side of the movable protective sleeve, and the limiting device is inserted into the first limiting hole through the second limiting hole.
[0007] In addition, preferably, first sliding blocks are fixedly installed on the inner walls of the movable protective sleeve, second sliding blocks are fixedly installed on the outer walls of the movable protective sleeve, and mounting holes are formed in the four corners of the bottom of the movable protective sleeve.
[0008] In addition, preferably, first side sliding grooves are formed in the two sides of the straight pin, and first sliding blocks are slidably arranged in the first side sliding grooves.
[0009] In addition, preferably, second side sliding grooves are formed in the two sides of the fixed protective sleeve, and second sliding blocks are slidably arranged in the second side sliding grooves.
[0010] In addition, preferably, the limiting device comprises a limiting pin, and the limiting pin is inserted into the first limiting hole through the second limiting hole.
[0011] In addition, preferably, the limiting pin is provided with a retaining ring at one end, the retaining ring is clamped on the outer wall of the movable protective sleeve, and the limiting pin is provided with a pull ring on the side close to the retaining ring.
[0012] The utility model discloses beneficial effect is:
[0013] In the utility model, the straight pin is under the protection of the fixed protective sleeve and the movable protective sleeve, and can be isolated from harmful substances in some harsh environments such as humidity and corrosive gas, so as to prevent chemical corrosion and protect the straight pin from being damaged. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 The utility model discloses the whole structure schematic diagram of four straight pin rotary potentiometer is provided to the utility model;
[0015] Figure 2 The utility model discloses the whole structure schematic diagram of four straight pin rotary potentiometer straight pin is provided to the utility model;
[0016] Figure 3 The utility model discloses the straight pin structure schematic diagram of four straight pin rotary potentiometer is provided to the utility model;
[0017] Figure 4 The utility model discloses the movable protective sleeve structure schematic diagram of four straight pin rotary potentiometer is provided to the utility model;
[0018] Figure 5 The utility model discloses the fixed protective sleeve structure schematic diagram of four straight pin rotary potentiometer is provided to the utility model;
[0019] Figure 6 The utility model discloses the limiting device structure schematic diagram of four straight pin rotary potentiometer is provided to the utility model.
[0020] In the drawing: 1 four straight pin rotary potentiometer main part, 2 straight pin, 21 first limiting hole, 22 first side sliding slot, 3 fixed protective sleeve, 31 second side sliding slot, 4 movable protective sleeve, 41 mounting hole, 42 second limiting hole, 5 limiting device, 51 limiting pin, 52 retaining ring, 53 pull ring, 6 first sliding block, 7 second sliding block. DETAILED DESCRIPTION
[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model.
[0022] Reference Figures 1-6The quadruplet straight pin rotary potentiometer comprises a quadruplet straight pin rotary potentiometer main body 1, four groups of straight pins 2 are installed on the quadruplet straight pin rotary potentiometer main body 1, fixed protective sleeves 3 are fixedly sleeved on the straight pins 2, movable protective sleeves 4 are slidably arranged in the fixed protective sleeves 3, the movable protective sleeves 4 are sleeved on the straight pins 2, first limiting holes 21 are formed on one side of the straight pins 2, second limiting holes 42 corresponding to the first limiting holes 21 are formed on one side of the movable protective sleeves 4, and limiting devices 5 are inserted into the first limiting holes 21 through the second limiting holes 42.
[0023] The first sliding blocks 6 are fixedly installed on the inner walls of the movable protective sleeves 4, the second sliding blocks 7 are fixedly installed on the outer walls of the movable protective sleeves 4, installation holes 41 are formed in the four corners of the bottom of the movable protective sleeves 4, and the quadruplet straight pin rotary potentiometer is installed at a specified position through the installation holes 41.
[0024] Meanwhile, first side sliding grooves 22 are formed on the two sides of the straight pins 2, the first sliding blocks 6 are slidably arranged in the first side sliding grooves 22, and the movement of the movable protective sleeves 4 is more stable.
[0025] In addition, second side sliding grooves 31 are formed on the inner walls of the fixed protective sleeves 3, the second sliding blocks 7 are slidably arranged in the second side sliding grooves 31, and the movement of the movable protective sleeves 4 is more stable.
[0026] Meanwhile, the limiting devices 5 comprise limiting pins 51, the limiting pins 51 are inserted into the first limiting holes 21 through the second limiting holes 42, and when the straight pins 2 are welded, the movable protective sleeves 4 will not fall and affect the welding.
[0027] In addition, the limiting pins 51 are provided with stop rings 52 on one end, the stop rings 52 are clamped on the outer walls of the movable protective sleeves 4, the limiting pins 51 are provided with pull rings 53 on the sides close to the stop rings 52, and the pull rings 53 are convenient for taking out the limiting pins 51.
[0028] In the embodiment, the straight pins 2 are aligned with the corresponding positions, then the straight pins 2 are fixedly installed on the circuit board through welding, then the limiting pins 51 are driven away from the first limiting holes 21 and the second limiting holes 42 by pulling the pull rings 42, then the movable protective sleeves 4 slide downward in the first side sliding grooves 22 and the second side sliding grooves 31 under the action of their own gravity, and then the movable protective sleeves 4 stably move downward and contact the potential plate, at this time, the movable protective sleeves 4 are fixedly installed on the circuit board through the four installation holes 41, and then the fixed protective sleeves 3 and the movable protective sleeves 4 protect the straight pins 2.
[0029] In the utility model, the straight pin 2 is under the protection of the fixed protection sleeve 3 and the movable protection sleeve 4, and the fixed protection sleeve 3 and the movable protection sleeve 4 can isolate the direct contact between the straight pin 2 and the harmful substances in some adverse environments such as humidity and corrosive gas, so that the straight pin 2 is prevented from being chemically corroded and damaged.
[0030] The above is only the preferred specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, and all should be covered in the protection scope of the utility model.
Claims
1. A quadruple in-line pin rotary potentiometer comprising a quadruple in-line pin rotary potentiometer body (1), characterized in that, The quadruple straight pin rotary potentiometer body (1) is provided with four groups of straight pins (2), the straight pins (2) are fixedly sleeved with fixed protective sleeves (3), the fixed protective sleeves (3) are slidably provided with movable protective sleeves (4), the movable protective sleeves (4) are sleeved on the straight pins (2), the straight pins (2) are provided with first limiting holes (21) on one side, the movable protective sleeves (4) are provided with second limiting holes (42) corresponding to the first limiting holes (21) on one side, and the limiting devices (5) are inserted into the first limiting holes (21) through the second limiting holes (42).
2. The quadruple direct-plug rotary potentiometer according to claim 1, characterized in that The inner walls of the movable protective sleeves (4) are fixedly provided with first sliding blocks (6) on both sides, the outer walls of the movable protective sleeves (4) are fixedly provided with second sliding blocks (7) on both sides, and the bottoms of the movable protective sleeves (4) are provided with mounting holes (41) on four corners.
3. The quadruple direct insertion leg rotary potentiometer according to claim 1, wherein, The straight pins (2) are provided with first side sliding grooves (22) on both sides, and the first side sliding grooves (22) are slidably provided with the first sliding blocks (6).
4. The quadruple direct insertion leg rotary potentiometer according to claim 1, wherein, The inner walls of the fixed protective sleeves (3) are provided with second side sliding grooves (31) on both sides, and the second side sliding grooves (31) are slidably provided with the second sliding blocks (7).
5. The quadruple direct insertion pin rotary potentiometer of claim 1, wherein, The limiting device (5) comprises a limiting pin (51), and the limiting pin (51) is inserted into the first limiting hole (21) through the second limiting hole (42).
6. The quadruple direct-plug rotary potentiometer according to claim 5, characterized in that One end of the limiting pin (51) is provided with a blocking ring (52), the blocking ring (52) is clamped on the outer wall of the movable protective sleeve (4), and one side of the limiting pin (51) close to the blocking ring (52) is provided with a pull ring (53).