CN108269663B

CN108269663B - Sliding potentiometer

Info

Publication number: CN108269663B
Application number: CN201810232661.5A
Authority: CN
Inventors: 刘遵义
Original assignee: Favorshine Electronics Qinzhou Guangxi Co ltd
Current assignee: Favorshine Electronics Qinzhou Guangxi Co ltd
Priority date: 2018-03-20
Filing date: 2018-03-20
Publication date: 2023-07-04
Anticipated expiration: 2038-03-20
Also published as: CN108269663A

Abstract

The invention relates to a sliding potentiometer. The sliding potentiometer comprises an upper shell, a lower base, a wiring terminal and a sliding push rod. The lower base is arranged below the upper shell to form a cavity for accommodating the resistor body. The top of last casing is equipped with the slip opening, and the lower extreme of slip push rod is for setting up the slide in the last casing, and the slip push rod is by the top of slip opening protrusion in last casing. The connecting terminals are extended out of the two ends of the upper shell from the cavity. The sliding push rod further comprises a connecting seat arranged on the sliding seat and fastening fins arranged on two sides of the connecting seat, the fastening fins are L-shaped bent sheet bodies, the two bent sheet bodies are respectively clung to the top and the side face of the upper shell, and rotatable fastening bolts are arranged on the fastening fins on the side face of the upper shell. The sliding potentiometer is simple and reasonable in structure, the push rod can be ensured to be firmly at a required sliding position, and the stability and reliability of the potentiometer are effectively improved.

Description

Sliding potentiometer

Technical Field

The invention relates to a potentiometer, in particular to a sliding potentiometer.

Background

The potentiometer is an adjustable electronic component. It consists of a resistor body and a rotary or sliding system. When a voltage is applied between two fixed contacts of the resistor body, the position of the contacts on the resistor body is changed through a rotating or sliding system, and a voltage which is in a certain relation with the position of the movable contact can be obtained between the movable contact and the fixed contact. The potentiometer is often used as a voltage divider, a rheostat, a current controller and the like, and is widely applied to industries such as measuring instruments, fax machines, copiers, printers, sensors and the like.

The potentiometer in the market is divided into rotary type, single-circle type, multi-circle type, sliding type and the like according to the structure. The sliding potentiometer is one of the most simple and common potentiometers. For example, CN201036103Y discloses a sliding potentiometer, comprising a push handle and a carbon plate body which are contacted in sequence, wherein the push handle is provided with a reed and a sliding sheet, the bottom of the push handle is riveted with a folding element, two ends of the carbon plate body are respectively provided with a terminal, the bottom of the carbon plate body is matched with a bracket, and two ends of the bracket are provided with fixing feet for stabilizing. Another sliding potentiometer is disclosed, such as CN207082387U, which comprises an upper housing, a lower housing, an upper cover plate, a lower cover plate and a sliding push rod; the top of going up the casing is equipped with rectangular opening, the middle part of upper cover plate adopts the opening to set up, the bottom both sides of upper cover plate are equipped with spout one, be equipped with the resistance card in the lower cover seat, the bottom of resistance card is equipped with the terminal, the top of resistance card is equipped with the lower cover plate, the middle part of lower cover plate is equipped with the opening, the top both sides of lower cover plate are equipped with spout two, be equipped with spout three on the medial surface of lower cover seat, the sliding push rod includes pushing handle and slide, the upper surface of slide is equipped with slide rail one, the lower surface of slide is equipped with slide rail two, the side of slide is equipped with slide rail three, contact brush is installed to the bottom of sliding push rod, contact brush passes lower cover plate setting. After the push rod of the disclosed sliding potentiometer stops at the required position, the stability is poor, and the stop position is easily shifted under the action of external force, such as shaking and vibration, even gravity, so that the required resistance value is changed and the output voltage is changed, thereby influencing the stability and the reliability of the potentiometer.

Disclosure of Invention

The invention aims to solve the technical problem of providing a sliding potentiometer, which has a simple and reasonable structure, can ensure that a push rod is stably at a required sliding position, and effectively improves the stability and reliability of the potentiometer.

In order to solve the technical problems, the invention adopts the following technical scheme:

the utility model provides a slidingtype potentiometre, including last casing, lower base, binding post and slip push rod, thereby lower base sets up in last casing below forms the cavity that is used for holding the resistance body, the top of going up the casing is equipped with slide opening, the lower extreme of slip push rod is for setting up the slide in last casing, the rest part of the slip push rod of slide top is protruding in the top of last casing by slide opening, binding post is visited in the both ends of last casing by above-mentioned cavity, the resistance value between the binding post at both ends changes along slide opening's slip along slide push rod, it is different from prior art in: the sliding push rod further comprises a connecting seat arranged on the sliding seat and fastening fins arranged on two sides of the connecting seat, the fastening fins are bent into L-shaped sheets, the two bent sheets are respectively clung to the top and the side face of the upper shell, rotatable fastening bolts are arranged on the fastening fins on the side face of the upper shell, and the rotating heads of the fastening bolts are exposed out of the fastening fins.

The technical scheme is as follows:

further, the sliding push rod further comprises a push rod arranged at the upper end of the connecting seat, and two sides of the push rod are concave cambered surfaces. Through the cambered surface that sets up both sides, can improve the suitability of push rod and finger when carrying out direct manual slip to slidingtype potentiometre, improve the comfort when sliding, be convenient for maintain and detect.

Furthermore, the upper end of the push rod is also provided with a through hole, and a pull ring is sleeved in the through hole. Preferably, the pull ring is annular and can pass through a cylinder with the diameter of 1.5-2.5 cm, so that the push rod can be pulled and slid manually through the pull ring.

Further, the junction of lower base and last casing is provided with the reinforcement piece of reinforcement usefulness to improve the firm degree of whole slidingtype potentiometre.

The beneficial effects of the invention are as follows:

1) According to the sliding potentiometer, the L-shaped fastening fins are arranged on the two sides of the sliding push rod and are matched with the fastening bolts, so that an access port or an access piece for fastening the sliding push rod is added to the potentiometer, the push rod can be ensured to be stably at a required sliding position, and the stability and the reliability of the potentiometer are effectively improved; 2) The push rod both sides of this slidingtype potentiometre still can set up to the cambered surface of indent, and through the pull ring that adds, the operation when carrying out direct manual slip to slidingtype potentiometre of being convenient for has given the travelling comfort when this potentiometre more functions and use, is convenient for detect and maintain.

Drawings

Fig. 1 is a schematic structural diagram of a sliding potentiometer according to the present invention.

The reference numerals in the figures are: 1. an upper housing; 2. a lower base; 3. a connection terminal; 4. sliding the push rod; 41. a slide; 42. a connecting seat; 43. a securing tab; 44. a fastening bolt; 45. a push rod; 46. a pull ring; 5. reinforcing sheets.

Detailed Description

The following describes and explains the specific structure of the sliding potentiometer of the present invention in conjunction with the specific embodiment.

As shown in fig. 1, the sliding potentiometer of the present embodiment includes an upper case 1, a lower base 2, a connection terminal 3, and a sliding push rod 4. The lower base 2 is disposed below the upper case 1 to form a cavity for accommodating the resistor. The top of the upper shell 1 is provided with a sliding opening, the lower end of the sliding push rod 4 is a sliding seat 41 arranged in the upper shell 1, and the rest part of the sliding push rod 4 above the sliding seat 41 protrudes out of the top of the upper shell 1 through the sliding opening. The connecting terminals 3 extend out of the two ends of the upper shell 1 from the cavities, and the resistance value between the connecting terminals 3 at the two ends changes along with the sliding of the sliding push rod 4 along the sliding opening. The sliding push rod 4 further comprises a connecting seat 42 arranged on the sliding seat 41, and fastening fins 43 arranged on two sides of the connecting seat 42. The fastening wing 43 is a sheet bent into an L shape, two bent sheets are respectively adhered to the top and the side surface of the upper casing 1, a rotatable fastening bolt 44 is arranged on the fastening wing 43 on the side surface of the upper casing 1, and the rotating head of the fastening bolt 44 is exposed outside the fastening wing 43.

Further, the sliding push rod 4 further includes a push rod 45 disposed at the upper end of the connecting seat 42, and two sides of the push rod 45 are concave cambered surfaces. The upper end of the push rod 45 is also provided with a through hole, and a pull ring 46 is sleeved in the through hole; the pull ring 46 is ring-shaped and can pass through a cylinder with the diameter of 1.5-2.5 cm.

Further, the connection between the lower base and the upper housing 1 is further provided with a reinforcing sheet 5 for reinforcing, and the reinforcing sheet 5 may be provided as a plurality of sheets.

Claims

1. The utility model provides a slidingtype potentiometre, including last casing (1), lower base (2), binding post (3) and slip push rod (4), thereby lower base (2) set up in last casing (1) below and form the cavity that is used for holding the resistance body, the top of going up casing (1) is equipped with sliding opening, the lower extreme of slip push rod (4) is for setting up slide (41) in last casing (1), the rest of slip push rod (4) of slide (41) top is by sliding opening protrusion in the top of last casing (1), binding post (3) are by the both ends of stretching out in last casing (1) in the above-mentioned cavity, the resistance value between binding post (3) at both ends changes along sliding opening's slip along sliding push rod (4), its characterized in that: the sliding push rod (4) further comprises a connecting seat (42) arranged on the sliding seat (41) and fastening fins (43) arranged on two sides of the connecting seat (42), the fastening fins (43) are bent into L-shaped sheets, two bent sheets of the sheet are respectively clung to the top and the side face of the upper shell (1), rotatable fastening bolts (44) are arranged on the fastening fins (43) on the side face of the upper shell (1), and rotating heads of the fastening bolts (44) are exposed out of the fastening fins (43).

2. The sliding potentiometer according to claim 1, wherein: the sliding push rod (4) further comprises a push rod (45) arranged at the upper end of the connecting seat (42), and two sides of the push rod (45) are concave cambered surfaces.

3. The sliding potentiometer according to claim 2, wherein: the upper end of the push rod (45) is provided with a through hole, and a pull ring (46) is sleeved in the through hole.

4. A sliding potentiometer according to claim 3, wherein: the pull ring (46) is annular and can pass through a cylinder with the diameter of 1.5-2.5 cm.

5. The sliding potentiometer according to claim 1, wherein: the joint of the lower base and the upper shell (1) is provided with a reinforcing sheet (5) for reinforcing.