阅读说明：本技术 一种双调式直滑电位器 (Double-adjusting type direct-sliding potentiometer ) 是由 刘林杰 于 2020-04-07 设计创作，主要内容包括：本发明公开了一种双调式直滑电位器,其结构包括：机壳、卡脚、滑槽、拨片、点触滑片机构,所述机壳底部位置设有卡脚且在其顶端面开设有滑槽,滑槽嵌合连接拨片,拨片与点触滑片机构相互连接,本发明的有益效果：利用结构中的气环贯穿施压泡的结构特性在膨胀后会向下对电压片施加适度的压力使其轻微变形并让其倾斜后的结构与碳膜电阻片衔接,二者衔接之后会接通电流使电位器成功运转,由常规的划片结构转化为点触式结构,避免了碳膜被频繁接触摩擦导致失效甚至损坏的后果。(The invention discloses a double-regulation type direct-sliding potentiometer, which structurally comprises: the invention discloses a mechanical hand, which comprises a shell, a clamping pin, a sliding groove, a shifting piece and a point-contact sliding piece mechanism, wherein the clamping pin is arranged at the bottom of the shell, the sliding groove is formed in the top end surface of the shell, the shifting piece is connected with the sliding groove in an embedded mode, and the shifting piece is connected with the point-contact sliding piece mechanism, so that the mechanical hand has the beneficial effects that: the structure characteristic that the air ring in the structure penetrates through the pressure applying bubble is utilized, after expansion, proper pressure is applied to the voltage sheet downwards to enable the voltage sheet to deform slightly, the inclined structure is connected with the carbon film resistor sheet, after the voltage sheet and the carbon film resistor sheet are connected, current is switched on to enable the potentiometer to operate successfully, the conventional scribing structure is converted into a point contact structure, and the consequence that the carbon film is failed or even damaged due to frequent contact friction is avoided.)

1. A double-regulation type direct-sliding potentiometer structurally comprises: casing (1), card foot (2), spout (3), plectrum (4), point contact gleitbretter mechanism (5), its characterized in that:

the bottom of the shell (1) is provided with a clamping pin (2), a sliding groove (3) is formed in the top end face of the clamping pin, the sliding groove (3) is connected with a shifting piece (4) in an embedded mode, and the shifting piece (4) is connected with a point contact sliding piece mechanism (5) in an interconnected mode.

2. The double-regulated direct-sliding potentiometer according to claim 1, wherein: point touches gleitbretter mechanism (5) and comprises bed frame (50), trigger shelves (51), point break wheel (52), gleitbretter binding post (53), carbon film resistance card (54), gomphosis is connected on bed frame (50) and is triggered shelves (51) and trigger the shelves and connect point break wheel (52) to (51) bottom, and point break wheel (52) below interval is equipped with gleitbretter binding post (53), and gleitbretter binding post (53) are located carbon film resistance card (54) surface and are horizontal equidistance and arrange.

3. The double-regulated direct-sliding potentiometer according to claim 2, wherein: and limit stoppers (50a) are arranged at the top ends of the two sides of the base frame (50).

4. The double-regulated direct-sliding potentiometer according to claim 2, wherein: the trigger gear handle (51) consists of an impact seat (520) and a conductive wheel (521), and one end of the impact seat (520) is connected with the conductive wheel (521).

5. The double-regulated direct-sliding potentiometer according to claim 4, wherein: the impact seat (520) is respectively provided with two turnover rods (520a), two push pipes (520b) and two guide connecting columns (520c), the two turnover rods (520a) are connected with the push pipes (520b) on the side face, and the tail ends of the push pipes (520b) are connected with the guide connecting columns (520 c).

6. The double-regulated direct-sliding potentiometer according to claim 4, wherein: the conductive wheel (521) is provided with an insulating end head (521a) and an inner clamping guide rod (521b), the insulating end head (521a) is located at the tail end of the inner clamping guide rod (521b), and the insulating end head (521a) and the inner clamping guide rod are of an integrated structure.

7. The double-regulated direct-sliding potentiometer according to claim 2, wherein: the sliding-piece wiring terminal (53) is composed of a pressing frame (530), an angle block (531), a honeycomb elastic net (532), a pressing plate (533) and a guide disc (534), the angle block (531) is arranged at the middle position of the pressing frame (530), the bottom of the pressing frame is connected with the honeycomb elastic net (532), the bottom surface of the honeycomb elastic net (532) is connected with the pressing plate (533), and the guide disc (534) penetrates through the pressing plate (533).

8. The double-regulated direct-slide potentiometer according to claim 7, wherein: the guide disc (534) is composed of an air ring (5341), a disc body (5342), pressure applying bubbles (5343) and a voltage sheet (5344), the air ring (5341) is located on the side edge of the disc body (5342) and distributed annularly, the pressure applying bubbles (5343) are communicated with the air ring (5341), and the voltage sheet (5344) is located at the central point of the disc body (5342) and connected with the air ring (5341).

Technical Field

The invention relates to the field of potentiometers, in particular to a double-regulation type direct-sliding potentiometer.

Background

The direct sliding potentiometer is a common potentiometer in a carbon film potentiometer, a resistor body of the direct sliding potentiometer is made of materials such as a ground carbon film, graphite and quartz coated on the surface of a base body, relatively speaking, the direct sliding potentiometer is convenient to adjust, relatively long in service life and relatively high in resolution ratio, and therefore the direct sliding potentiometer is widely applied, but the resistance value of the direct sliding potentiometer is well adjusted, the stability of the resistance value is not well kept when the resistance value is adjusted to be corresponding, and under the condition of repeated use, the carbon film on the potentiometer can be wiped off to cause damage of the potentiometer.

Disclosure of Invention

Aiming at the defects of the prior art, the invention is realized by the following technical scheme: a double-regulation type direct-sliding potentiometer structurally comprises: the bottom of the machine shell is provided with a clamping pin, the top end face of the machine shell is provided with a sliding groove, the sliding groove is embedded and connected with the shifting piece, the shifting piece is connected with the point contact sliding piece mechanism, the machine shell is used as a shell main body structure of the potentiometer, on one hand, a structural framework is constructed as a shell of the potentiometer to enable internal components to form a mechanism capable of realizing synchronous operation of a circuit, on the other hand, the machine shell is used for protecting the internal components, the internal components are easy to fall off and have high fracture risk due to small size, the safety of the internal components can be greatly improved, the clamping pin is an interconnected carrier structure for connecting the potentiometer and circuit equipment, the stable connection of the structure is mainly realized by utilizing a clamping groove corresponding to the embedding of the clamping pin, the sliding groove is of an open structure and is used as a moving opening of the shifting piece, the poking sheet is a shell structure of the point contact sliding sheet mechanism and is used for directly sliding the poking sheet to carry out potentiometer operation.

As a further technical supplement, the point-contact slip sheet mechanism comprises a base frame, a trigger gear handle, point breaking wheels, slip sheet connecting terminals and carbon film resistance sheets, wherein the trigger gear handle is connected with the base frame in an embedded mode, the bottom end of the trigger gear handle is connected with the point breaking wheels, the slip sheet connecting terminals are arranged below the point breaking wheels at intervals, are positioned on the surface of the carbon film resistance sheets and are horizontally arranged transversely at equal intervals, the base frame is a frame structure of the point-contact slip sheet mechanism, mechanical connection is achieved on other components depending on structural stability and supporting performance, the trigger gear handle, the point breaking wheels and the slip sheet connecting terminals are core operation components of a potentiometer, and the carbon film resistance sheets are base materials of the potentiometer and are sheet-shaped structural bodies with certain thickness and are also core materials of the potentiometer.

As a further technical supplement, the top ends of two sides of the base frame are respectively provided with a limit stop, the limit stops are made of flexible organic silicon materials with certain elasticity, the electric insulating material has good electric insulating performance, the dielectric loss, the voltage resistance, the electric arc resistance, the corona resistance, the volume resistance coefficient and the surface resistance coefficient are good, the electric performance is slightly influenced by temperature and frequency, and the limit stop can limit the trigger bar under the condition of avoiding generating redundant electric charges and prevent the trigger bar from exceeding the working stroke when being used as a stable electric insulating material.

As a further technical supplement of the invention, the trigger gear consists of an impact seat and a conductive wheel, wherein one end of the impact seat is connected with the conductive wheel, and one end of the impact seat extends into the conductive wheel, and when the impact seat is pulled by power, the impact seat can be pushed into the conductive wheel and trigger the operating mechanism of the conductive wheel to start operating.

As a further technical supplement, the impact seat is respectively provided with two turning rods, two push pipes and a connecting guide post, the two turning rods are connected with the push pipes on the side surfaces between the two turning rods, the tail ends of the push pipes are connected with the connecting guide post, one end of each turning rod is connected with the corresponding push pipe, the position of each push pipe can be quickly pushed to the position of the corresponding connecting guide post under the condition that the turning angle of each turning rod is changed, and the connecting guide post can be directly drilled into the structure in the state of being attached to an insulating end head and can be in contact with the inner clamping guide rod to generate an electric power connecting and guiding effect after receiving power traction.

As a further technical supplement of the invention, the conductive wheel is provided with an insulating end and an inner clamping guide rod, the insulating end is positioned at the tail end of the inner clamping guide rod and is of an integrated structure, the insulating end is welded with the conductive metal material of the inner clamping guide rod by adopting an insulating metal material, the combined body of the inner clamping guide rod and the insulating end is formed into a main body frame by adopting a bending type clamp structure body, the insulating end can play a role of clamping the conductive connecting column and preventing the conductive connecting column from being connected with the inner clamping guide rod, and once the conductive connecting column is connected with the inner clamping guide rod, the current can be guided to completely pass through the conductive wheel and be conveyed downwards.

As a further technical supplement of the invention, the sliding sheet connecting terminal consists of a pressing frame, an angle block, a honeycomb elastic net, a pressing plate and a guide disc, wherein the angle block is arranged at the middle position of the pressing frame, the bottom of the pressing frame is connected with the honeycomb elastic net, the bottom surface of the honeycomb elastic net is connected with the pressing plate, the guide disc penetrates through the pressing plate, the pressing frame is a main body structure at the top end of the sliding sheet connecting terminal, the angle block can be embedded into a clamping groove of the pressing frame by utilizing a triangular block structure body so as to prevent the pressing degree of a component at the bottom from exceeding a limited range due to overlarge downward pressing distance of the pressing frame, the honeycomb elastic net is formed by interweaving compact springs, excellent support and rebound can be provided to realize the resetting of the pressing frame, and when the pressing plate is pressed downwards by pressure, the partial structure of the guide disc at the bottom can be mutually contacted with a carbon film of.

As a further technical supplement, the guide disc comprises an air ring, a disc body, pressure applying bubbles and voltage plates, wherein the air ring is positioned on the side edge of the disc body and distributed annularly, the pressure applying bubbles are communicated with the air ring, the voltage plates are positioned at the central point of the disc body and connected with the disc body, the air ring is integrally of a hollow cylindrical annular structure and is used as a carrier structure for conveying airflow and mainly used for filling gas into the pressure applying bubbles to fully expand the pressure applying bubbles, the air ring penetrates through the structural characteristics of the pressure applying bubbles to enable the pressure applying bubbles to synchronously expand, the pressure applying bubbles are made of high-strength insulating rubber films, and after expansion, proper pressure is applied to the voltage plates downwards to enable the voltage plates to be slightly deformed, and the inclined structure of the voltage plates is connected with a carbon.

Advantageous effects

The invention is applied to the technical aspect of a direct-sliding potentiometer, and mainly aims to solve the problem that a carbon film on the potentiometer is wiped off to cause damage of the potentiometer under the condition that the potentiometer is repeatedly used;

the invention solves the problem by structurally arranging a point contact sliding sheet mechanism, applies moderate pressure to a voltage sheet downwards by utilizing the structural characteristic that an air ring in the structure penetrates through a pressure applying bubble after expansion to enable the voltage sheet to deform slightly and enable the inclined structure to be connected with a carbon film resistance sheet, and then a current is switched on to enable a potentiometer to operate successfully after the connection of the voltage sheet and the carbon film resistance sheet, so that the conventional scribing structure is converted into the point contact structure, and the result that the carbon film is frequently contacted and rubbed to cause failure and even damage is avoided.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic diagram of an external structure of a dual-mode direct-sliding potentiometer according to the present invention.

FIG. 2 is a front sectional view of a point contact slider mechanism of a dual-mode direct-sliding potentiometer according to the present invention.

FIG. 3 is a front sectional view of the trigger bar of the point-contact sliding mechanism of the double-adjustable direct-sliding potentiometer according to the present invention.

Fig. 4 is a front sectional view of a slider terminal of a point contact slider mechanism of a double-mode direct-sliding potentiometer according to the present invention.

Fig. 5 is a top view of a conductive plate structure of a slider terminal of a point contact slider mechanism of a double-mode direct-sliding potentiometer according to the present invention.

In the figure: the device comprises a shell-1, a clamping pin-2, a sliding chute-3, a shifting sheet-4, a point contact sliding sheet mechanism-5, a base frame-50, a trigger gear handle-51, a point breaking wheel-52, a sliding sheet connecting terminal-53, a carbon film resistor sheet-54, a limit stop-50 a, an impact seat-520, a conductive wheel-521, a turning rod-520 a, a push pipe-520 b, a connecting guide column-520 c, an insulating end-521 a, an inner clamping guide rod-521 b, a pressing frame-530, a corner block-531, a honeycomb elastic net-532, a pressing plate-533, a guide disc-534, an air ring-5341, a disc body-5342, a pressing bubble-5343 and a voltage sheet-5344.

Detailed Description

In order to make the technical means, the original characteristics, the achieved purposes and the effects of the invention easy to understand, the following description and the accompanying drawings further illustrate the preferred embodiments of the invention.