CN219696172U - Single-joint potentiometer with riveted rotating shaft and adjusting disc - Google Patents

Abstract

The utility model provides a single-joint potentiometer with a rotating shaft riveted with an adjusting disc, belonging to the field of electronic element production; the single-joint potentiometer with the rotating shaft riveted with the adjusting disc comprises the rotating shaft, a rotating shaft fixing plate and the adjusting disc; the rotary shaft is of a cylindrical structure with the front end thicker than the rear end, the rotary shaft is installed by adopting a method of front end installation and rear end fixation, the rear end of the rotary shaft is riveted in the adjusting disc by adopting a mortise-tenon structure, the rotary shaft fixing plate comprises a rotary shaft fixing tube at the front part, an annular bulge at the rear part and other structures, the inner wall of the rotary shaft fixing tube is tightly sleeved with the middle section of the rotary shaft, the rotary shaft is prevented from swinging in rotation, the front end of the rotary shaft is clamped in front of the rotary shaft fixing tube, the adjusting disc is abutted against the annular bulge, the rotary shaft is prevented from sliding back and forth in rotation, the stability of the potentiometer structure is improved, and meanwhile, the rotary shaft is integrally formed, and the falling of a shaft head caused by the installation of a clamping type shaft head on the shaft is avoided, so that the durability of the potentiometer is improved.

Description

Single-joint potentiometer with riveted rotating shaft and adjusting disc

Technical Field

The utility model relates to the field of electronic element production, in particular to a single-connection potentiometer with a rotating shaft riveted with an adjusting disc.

Background

The potentiometer is an adjustable electronic element, is a common rotary-sliding rheostat, and is widely applied to the field of electronic products.

The potentiometer generally comprises a rotating shaft fixedly connected with an external knob, an adjusting disk connected with the rotating shaft and used for adjusting the interior of the potentiometer, and a rotating shaft fixing plate which is used for fixing the rotating shaft on the potentiometer and rotatably connected with the rotating shaft; the rotary shaft and the adjusting disc are often in an integrally formed structure in production, the rotary shaft and the adjusting disc are firmly connected, but the rotary shaft penetrates through the rotary shaft fixing plate from the inner side of the potentiometer, in order to avoid the outer end of the rotary shaft from retracting into the potentiometer, the outer end of the rotary shaft is sleeved with a clamping type shaft head, the clamping type shaft head is not easy to connect with the rotary shaft, the shaft head is easy to fall off along with a knob only by virtue of friction force between the shaft head and the rotary shaft, and the durability of the potentiometer is affected.

Disclosure of Invention

In order to solve the problem that a shaft head is easy to fall off, the utility model provides the single-joint potentiometer with the rotating shaft and the adjusting disc, the shaft head of the rotating shaft of the single-joint potentiometer with the rotating shaft and the adjusting disc are integrally formed, the rotating shaft is installed by a method of fixing the rear end of the rotating shaft by installing the front end, the rear end of the rotating shaft is riveted in the adjusting disc by adopting a mortise-tenon structure, the connection stability of the rotating shaft and the adjusting disc is ensured by adopting the mortise-tenon structure riveting method, the problem that the shaft head is easy to fall off is avoided by the integrally formed rotating shaft head, and the stability and the durability of the potentiometer are greatly improved by matching with the structure of the rotating shaft fixing plate outside the rotating shaft.

The utility model achieves the above purpose through the following detailed technical scheme:

a single-joint potentiometer with a rotating shaft riveted with an adjusting disc comprises a rotating shaft, a rotating shaft fixing plate, a front panel, an adjusting disc, a side shell and a rear panel; the rotary shaft is of a cylindrical structure, passes through the rotary shaft fixing plate and the front panel, is fixedly connected with the regulating disc, takes the direction of one exposed end of the rotary shaft as the front, the rotary shaft fixing plate is arranged in front of the front panel and is fixedly connected with the front panel, the front panel is a circuit board provided with a resistance changing circuit, the regulating disc is arranged behind the front panel, the front part of the regulating disc is provided with an electric brush connected with the resistance changing circuit in the front panel, and the side shell is of a cylinder shape formed by encircling a metal plate, is arranged between the front panel and the rear panel and is encircling the periphery of the regulating disc; the rotary shaft comprises a shaft head arranged at the forefront end of the rotary shaft, the shaft head is cylindrical coaxial with the rotary shaft and thicker than other structures of the rotary shaft, the rotary shaft is integrally formed, and the rear end of the rotary shaft is fixed with the adjusting disc through a mortise and tenon structure.

The rotary shaft further comprises anti-slip insections, a straight incision and a rotary shaft tenon, wherein the anti-slip insections are longitudinally carved on the side surface of the shaft head, and the straight incision is a straight incision cut out along the axis of the shaft head at the foremost end of the shaft head; the rotary shaft tenon is arranged at the rear end of the rotary shaft and is perpendicular to the center of the cylindrical surface to form a straight-line bulge; the adjusting disc comprises a mortise, and the mortise is arranged in the center of the adjusting disc and is hollowed out in a square shape; the rotating shaft tenon penetrates through the mortises and is riveted behind the mortises.

The rotary shaft fixing plate comprises a fixing plate substrate, a rotary shaft fixing tube and annular protrusions, the rotary shaft fixing tube vertically penetrates through the fixing plate substrate and is fixed on the fixing plate substrate, the rear end of the rotary shaft fixing tube penetrates through the fixing plate substrate and forms the annular protrusions on the fixing plate substrate, the inner diameter of the rotary shaft fixing tube is consistent with the outer diameter of the middle section of the rotary shaft, a shaft head of the rotary shaft abuts against the front of the rotary shaft fixing tube, the middle section of the rotary shaft penetrates through the rotary shaft fixing tube and is in rotary connection with the rotary shaft fixing tube, and the front portion of the adjusting disc abuts against the annular protrusions.

The rotating shaft fixing plate further comprises an annular groove, a panel clamp, a hook claw groove and a fixing plate hook claw opening, wherein the annular groove is formed in the periphery of the annular protrusion, and the panel clamp is formed in the two sides of the rear plate surface of the fixing plate substrate in a small columnar protrusion mode; the claw hooking grooves are arranged on two sides of the front plate surface of the fixed plate substrate in a nail-shaped concave manner, and square notches which are the claw hooking bayonets of the fixed plate are formed in the edges of the fixed plate substrate corresponding to the claw hooking grooves; wherein, the rotation axis fixed plate is integrated into one piece.

The front panel is in a plate shape below an upper circle, a plurality of panel pins connected with a varistor circuit in the front panel are arranged on the lower side of the front panel side by side, a circular hollow is arranged in the center of the front panel, the size of the circular hollow is slightly larger than the outer diameter of the annular bulge, symmetrical small notches are arranged on two sides of the front panel and are panel bayonets, the size and the position of the panel bayonets are matched with those of the panel clamping nails, and square notches which are hook bayonets are respectively arranged on the upper side and the lower side of the panel bayonets on the two sides; the size and the position of the claw-hooking bayonet correspond to those of the fixed plate claw-hooking bayonet.

The adjusting disc further comprises an adjusting disc reinforcing ring, an adjusting disc top and an adjusting disc front bulge, wherein the adjusting disc reinforcing ring is an annular bulge and is arranged at the rear part of the adjusting disc at the periphery of the mortise; the adjusting disc top is arranged on the periphery of the rear side of the adjusting disc, and the adjusting disc top is of a wedge-shaped bulge structure with two ends slightly smaller than the middle part; the center of the front part of the adjusting disk is provided with a convex round surface around the mortises, which is the front convex of the adjusting disk; wherein, the regulating plate is integrated into one piece.

The side shell comprises a shell body, a front hook claw, a rear hook claw, an adjusting disc resistance bar and a connecting buckle, wherein the shell body is of a cylindrical structure formed by rolling metal sheets, and two ends of the metal sheets are mutually buckled at the lower part of the shell body to form the connecting buckle; four front hook claws are arranged around the front part of the shell, the front hook claws are sheet hooks, the size and the position of the front hook claws are matched with the hook claw bayonets, the fixed plate hook claw bayonets and the hook claw grooves, and the shell and the front panel are fixed behind the rotating shaft fixed plate through the front hook claws; the rear hook claw is arranged at the periphery of the rear part of the shell behind the front hook claw, the rear hook claw is also a sheet hook, and the rear panel is fixed at the rear part of the shell through the rear hook claw; the inner side of the upper part of the shell is provided with the adjusting disc resistance bar, the adjusting disc resistance bar is a square protrusion, the adjusting disc resistance bar is abutted against the adjusting disc top on the adjusting disc which rotates positively and negatively to a certain angle, and the side shell is formed by curling and folding the same piece of metal sheet.

Four square notches are formed in the side edge of the rear panel and are rear hook claw bayonets, and the size and the position of the rear hook claw bayonets are matched with those of the rear hook claws; the rear panel is provided with a switch component matched with the adjusting disk top for use; the switch assembly comprises a first wiring pin, a second wiring pin, a U-shaped hard metal sheet, a switch contact opening and an arc-shaped elastic metal sheet; the first wire connecting pin and the second wire connecting pin penetrate through the rear panel and are arranged behind the rear panel, and the U-shaped hard metal sheet is fixedly arranged in front of the rear panel and is connected with the first wire connecting pin; the switch contact opening is formed by fixedly arranging a hard metal sheet in front of the rear panel and is connected with the second wiring pin; the U-shaped hard metal sheet is not in direct contact with the contact opening of the switch; an arc-shaped opening is arranged below the switch contact opening; the arc elastic metal sheet is a curled elastic metal sheet, one end of the arc elastic metal sheet is fixedly connected with the U-shaped hard metal sheet, the other end of the arc elastic metal sheet is curled into a cylinder shape and is elastically abutted against an arc-shaped opening below the switch contact opening, and the adjusting disc top is abutted against the curled cylinder-shaped end of the arc elastic metal sheet after rotating for a certain angle and is disconnected with the switch contact opening.

The utility model has the beneficial effects that:

1. according to the single-joint potentiometer with the rotary shaft riveted with the adjusting disc, the shaft head integrally formed with the rotary shaft is arranged outside the potentiometer at the foremost end of the rotary shaft, and the rotary shaft is riveted with the adjusting disc in the potentiometer through the mortise-tenon structure at the rearmost end of the rotary shaft, so that the rotary shaft cannot fall off the shaft head, stable connection with the adjusting disc is realized, and the stability and durability of the potentiometer are greatly improved.

2. According to the single-joint potentiometer with the rotating shaft riveted with the adjusting disc, the anti-slip insection and the linear notch are arranged at the shaft head at the foremost end of the rotating shaft, and after the single-joint potentiometer is connected with an external knob, the knob is prevented from rotating and sliding radially, meanwhile, the contact area between the shaft head and the knob is greatly increased, so that the friction force between the shaft head and the knob is increased, and the knob is effectively prevented from sliding axially and falling off.

3. The rear part of the rotating shaft fixing plate in the single-joint potentiometer with the rotating shaft riveted with the adjusting disc is provided with the annular bulge, the annular bulge is in contact with the front bulge of the adjusting disc at the front part of the adjusting disc and can rotationally slide, the contact area between the adjusting disc and the rotating shaft fixing plate is reduced by the arrangement of the annular bulge, so that the friction force is reduced, the adjusting disc is lighter and smoother in the rotating process, meanwhile, the contact between the adjusting disc and the rotating shaft fixing plate is smoother by the arrangement of the annular bulge and the front bulge of the adjusting disc, the smoothness of the adjusting disc in the rotating process is improved, and the adjusting accuracy and stability of the potentiometer are improved; the annular bulge increases the length of the rotating shaft fixing tube, and plays a role in further fixing the rotating shaft and preventing the rotating shaft from swinging; the annular groove is further formed in the outer side of the annular bulge, redundant pasty lubricating oil can be effectively stored in the annular groove, the lubricating oil can be slowly released between the front bulge of the adjusting disc and the annular bulge along with rotation of the adjusting disc, the lubricating degree between the front bulge of the adjusting disc and the annular bulge is guaranteed, and meanwhile overflow of the lubricating oil is reduced.

4. The side shell of the single-link potentiometer with the rotating shaft riveted with the adjusting disk is provided with a front hook claw matched with a hook claw bayonet, a fixed plate hook claw bayonet and a hook claw groove, and is also provided with a rear hook claw matched with a rear hook claw bayonet; the front hook claw and the rear hook claw are buckled with the hook claw bayonet, the fixed plate hook claw bayonet, the hook claw groove and the rear hook claw bayonet; the combination of the rotating shaft fixing plate, the front panel, the side shell and the rear panel is more delicate and compact, and the potentiometer is more firm and durable; the side shells are formed by curling and folding the same piece of metal sheet, so that the side shells are convenient to produce, stable and durable.

5. The utility model discloses a switch component matched with a top of an adjusting disk for use, which is arranged on a rear panel of a single-link potentiometer with a rotating shaft riveted with the adjusting disk; the application scene of the potentiometer is increased.

Drawings

Fig. 1 is a schematic perspective view of a single-link potentiometer with a rotary shaft riveted with a regulating disc.

Fig. 2 is a schematic perspective view of a rotary shaft of a single-link potentiometer with a rotary shaft riveted with a regulating disk.

Fig. 3 is a schematic perspective view of a rotary shaft fixing plate in a single-joint potentiometer with a rotary shaft riveted with a regulating disc.

Fig. 4 is a schematic perspective view showing another angle of a rotation shaft fixing plate in a single-joint potentiometer with a rotation shaft riveted with a regulating plate.

Fig. 5 is a schematic perspective view showing a combined structure of a panel and a rotation shaft fixing plate in a single-joint potentiometer with a rotation shaft riveted with a regulating disc.

Fig. 6 is a schematic perspective view of a regulating disc in a single-joint potentiometer with a rotary shaft riveted with the regulating disc.

Fig. 7 is a schematic perspective view of another angle of the adjusting disk in the single-joint potentiometer with the rotating shaft riveted with the adjusting disk.

Fig. 8 is a schematic perspective view of a side case of a single-joint potentiometer with a rotary shaft riveted with a regulating disk.

Fig. 9 is a schematic perspective view showing a combined structure of a rotary shaft, a regulating disc and a rear panel in a single-joint potentiometer with the rotary shaft riveted with the regulating disc.

Fig. 10 is a schematic perspective view of a rear panel of a single-joint potentiometer with a rotary shaft riveted with a regulating disk.

Detailed Description

The utility model is described in detail below with reference to the drawings and the specific embodiments.

As shown in fig. 1 to 10, a single-joint potentiometer with a rotating shaft riveted with a regulating disk comprises a rotating shaft 1, a rotating shaft fixing plate 2, a front panel 3, a regulating disk 4, a side shell 5 and a rear panel 6;

the rotary shaft 1 is of an integrally formed columnar structure, the rotary shaft 1 penetrates through the rotary shaft fixing plate 2 and the front panel 3 and is fixedly connected with the adjusting disc 4, the direction of one exposed end of the rotary shaft is used as the front, the rotary shaft fixing plate 2 is arranged in front of the front panel 3 and is fixedly connected with the front panel 3, the front panel 3 is a circuit board internally provided with a varistor circuit, three panel pins 30 connected with the varistor circuit in the front panel 3 are arranged on the lower side of the front panel 3 side by side, metal brushes connected with the varistor circuit in the front panel 3 are arranged on the adjusting disc 4, the side shell 5 is in a cylinder shape surrounded by the metal plates and is arranged between the front panel 3 and the rear panel 6 and surrounds the periphery of the adjusting disc 4, and the rear panel 6 is a circular plate.

The rotary shaft 1 comprises a shaft head 10 arranged at the forefront end of the rotary shaft, the shaft head 10 is cylindrical and thicker than other structures of the rotary shaft, anti-slip insections 11 are longitudinally engraved on the side face of the shaft head 10, a straight incision 12 is arranged at the forefront end of the shaft head 10, the straight incision 12 is a straight incision cut along the axis of the shaft head 10, the outer side of the middle section of the rotary shaft 1 is even and smooth, a rotary shaft tenon 13 is arranged at the rear end, and the rotary shaft tenon 13 is a straight protrusion perpendicular to the center of the cylindrical surface of the rotary shaft 1.

The rotation shaft fixing plate 2 comprises a fixing plate substrate 20 and a rotation shaft fixing tube 21, the fixing plate substrate 20 is of a plate-shaped structure with the size matched with that of the front panel 3, the rotation shaft fixing tube 21 is of a cylindrical tubular structure, the rotation shaft fixing tube 21 vertically penetrates through the fixing plate substrate 20 and is fixed on the fixing plate substrate 20, the inner diameter of the rotation shaft fixing tube 21 is consistent with the outer diameter of the middle section of the rotation shaft 1, the outer side of the front end of the rotation shaft fixing tube 21 is provided with a fixing thread 22, the rear end of the rotation shaft fixing tube 21 penetrates through the fixing plate substrate 20 and forms an annular bulge 23 on the fixing plate substrate 20, the periphery of the annular bulge 23 is provided with an annular groove 24 on the fixing plate substrate 20, the left and right sides of the back face of fixed plate base plate 20 is provided with two small-size columnar bulge of symmetry and is panel staple 25, and the left and right sides symmetry of the front face of fixed plate base plate 20 is provided with two sets of nail form sunken and colludes claw recess 26, collude claw recess 26 and be provided with square breach and collude claw bayonet socket 27 for the fixed plate on the fixed plate base plate 20 edge that colludes claw recess 26 corresponds, and left and right sides is provided with four altogether fixed plate colludes claw bayonet socket 27, wherein, fixed plate base plate 20, rotation axis fixed tube 21, fixed screw thread 22, annular bulge 23, annular groove 24, panel staple 25, collude claw recess 26 and fixed plate collude claw bayonet 27 isotructure in rotation axis fixed plate 2 are integrated into one piece.

The front panel 3 is in an upper round lower shape, three panel pins 30 at the lower side of the front panel 3 are respectively arranged in parallel in an L-shaped structure backwards, a round hollow 31 is arranged in the center of the front panel 3, the size of the round hollow 31 is slightly larger than the outer diameter of the annular bulge 23, symmetrical small notches are arranged at the left side and the right side of the front panel 3 and are used as panel bayonet 32, the size and the position of the panel bayonet 32 are matched with those of the panel staple 25, and square notches are respectively arranged at the upper side and the lower side of the panel bayonet 32 at the two sides and are used as claw bayonet 33; the size and position of the claw-hooking bayonets 33 correspond to those of the fixed plate claw-hooking bayonets 27.

The regulating disc 4 is of a plastic disc-shaped structure, the regulating disc 4 is arranged behind the front panel 3, a metal electric brush used for rotationally and slidingly connecting a variable resistance circuit in the front panel 3 is arranged at the front part of the regulating disc 4, a square hollow mortice 40 is arranged in the center of the regulating disc 4, the mortice 40 is matched with the rotary shaft tenon 13, annular protrusions are arranged on the periphery of the mortice 40 at the rear part of the regulating disc 4 and are regulating disc reinforcing rings 41, regulating disc top pieces 42 are arranged on the rear side of the regulating disc 4, and the regulating disc top pieces 42 are wedge-shaped protrusion structures which are arranged at two ends of the periphery of the rear part of the regulating disc 4 and are slightly smaller than the middle parts; the two sides of the front part of the joint disc 4 are provided with punctiform bulges 43 for connecting the metal brushes, and the round surface of the bulge, which is arranged around the mortise 40, of the front center of the joint disc 4 is a front bulge 44 of the joint disc; the mortises 40, the adjusting disk reinforcing rings 41, the adjusting disk top 42, the point-shaped bulges 43 and the adjusting disk front bulges 44 are all integrally formed.

The side shell 5 comprises a shell 50, a front hook claw 51, a rear hook claw 52, an adjusting disc resistance strip 53 and a connecting buckle 54, wherein the shell 50 is of a cylindrical structure formed by rolling metal sheets, and two ends of the metal sheets are mutually buckled at the lower part of the shell 50 to form the connecting buckle 54; four front hooks 51 are arranged around the front part of the shell 50, the front hooks 51 are sheet hooks, and the size and the position of the front hooks 51 are matched with the hooks bayonet 33, the fixing plate hooks bayonet 27 and the hooks slot 26, so as to fix the shell 50 and the front panel 3 on the rotating shaft fixing plate 2; the rear portion of the housing 50 is provided with the rear hook claw 52 at the rear of the front hook claw 51, the rear hook claw 52 is also a sheet hook for fixing the rear panel 6 at the rear of the housing 50, the inner side of the upper portion of the housing 50 is provided with the adjusting disc blocking strip 53, the adjusting disc blocking strip 53 is a square protrusion, the adjusting disc blocking strip 53 is in contact with the adjusting disc top 42 on the adjusting disc 4 rotating positively and negatively to a certain angle to play a role in limiting the excessive rotation of the adjusting disc 4, wherein the housing 50, the front hook claw 51, the rear hook claw 52, the adjusting disc blocking strip 53 and the connecting buckle 54 in the side housing 5 are all formed by curling and folding the same piece of metal sheet.

Four square notches are formed in the side edge of the rear panel 6 and are rear hook claw bayonets 60, the size and the position of the rear hook claw bayonets 60 are matched with those of the rear hook claws 52, a switch assembly is arranged on the rear panel 6 and comprises a first wiring pin 61, a second wiring pin 62, a U-shaped hard metal sheet 63, a switch contact opening 64 and an arc-shaped elastic metal sheet 65; the first pins 61 are disposed below the rear portion of the rear panel 6 through the rear panel 6, the second pins 62 are disposed above the rear portion of the rear panel 6 through the rear panel 6, and the U-shaped hard metal pieces 63 are fixedly disposed below the front portion of the rear panel 6 and connected to the first pins 61; the switch contact 64 is a hard metal sheet fixedly arranged at the front upper part of the rear panel 6 and is connected with the second wire connecting pin 62; wherein the U-shaped hard metal sheet 63 and the first wire connecting pin 61 are integrally formed; the switch contact 64 and the second terminal pin 62 are integrally formed, and the U-shaped hard metal sheet 63 is not in direct contact with the switch contact 64; an arc-shaped opening is arranged below the switch contact opening 64; the arc elastic metal sheet 65 is a curled high-elasticity metal sheet, one end of the arc elastic metal sheet is fixedly connected with the U-shaped hard metal sheet 63, and the other end of the arc elastic metal sheet is curled into a cylinder shape and is elastically abutted against an arc opening below the switch contact opening 64; when the adjusting disk 4 rotates to a certain angle, the cylindrical end of the arc-shaped elastic metal sheet 65 is jacked up by the adjusting disk top piece 42 on the adjusting disk 4, the switch assembly is in an off state, the adjusting disk 4 is reversely rotated, the adjusting disk top piece 42 slides across the cylindrical end of the arc-shaped elastic metal sheet 65 and is turned over, the cylindrical end of the arc-shaped elastic metal sheet 65 rebounds under the action of elasticity and continuously abuts against the arc-shaped opening below the switch contact opening 64, and the switch assembly is in an on state.

The working principle of the utility model is as follows:

when the potentiometer is installed, the rotating shaft 1 sequentially passes through the rotating shaft fixing plate 2 and the front panel 3 from front to back, the rotating shaft rabbet 13 at the rear end of the rotating shaft 1 is inserted into the mortises 40 in the regulating disc 4, and the protruded rotating shaft rabbet 13 is heated at the rear mortises 40 of the regulating disc 4 to enable the tail ends of the rotating shaft rabbet 13 to melt and deform, so that the rotating shaft 1 is firmly riveted on the regulating disc 4; because the outer diameter of the shaft head 10 at the front end of the rotating shaft 1 is larger than that of the middle rear end, the rear end of the shaft head 10 is propped against the front end of the rotating shaft fixing pipe 21 and rotates and slides mutually, the front convex 44 of the adjusting disk on the adjusting disk 4 is propped against the annular convex 23 on the rotating shaft fixing plate 2 and rotates and slides mutually, the front and back shaking of the rotating shaft 1 is avoided, the annular groove 24 arranged at the outer side of the annular convex 23 can effectively store redundant pasty lubricating oil, the lubrication degree between the front convex 44 of the adjusting disk and the annular convex 23 is ensured, and meanwhile, the overflow of the lubricating oil is reduced; the rotating shaft fixing pipe 21 in the rotating shaft fixing plate 2 is sleeved outside the middle section of the rotating shaft 1 and is rotationally and slidingly connected with the rotating shaft 1, so that the rotating shaft 1 is fixed, and the swinging of the rotating shaft 1 is avoided; the shaft head 10 at the front end of the rotating shaft 1 is provided with anti-slip insections 11 and notches 12 which are used for playing a good role in anti-slip and fixing when being connected with an outer knob.

The panel clamping nails 25 in the rotating shaft fixing plate 2 are engaged with the panel clamping holes 32 in the front panel 3, so that sliding between the fixing plate base plate 20 in the rotating shaft fixing plate 2 and the front panel 3 is avoided; the front hook claw 51 in the side shell 5 is tightly buckled in the hook claw groove 26 in the rotating shaft fixing plate 2 through the hook claw bayonet 33 in the front panel 3 and the fixing plate hook claw bayonet 27 in the rotating shaft fixing plate 2, and the side shell 5 and the front panel 3 are tightly buckled on the rear side of the fixing plate base plate 20 in the rotating shaft fixing plate 2; the arrangement of the claw groove 26, the fixed plate claw bayonet 27 and the claw bayonet 33 plays a role in preventing the side shell 5 from rotating and sliding, so that the side shell 5 is connected more precisely; an adjusting disc blocking strip 53 is arranged in the side shell 5, and after the adjusting disc 4 rotates to a certain angle in the positive and negative directions, the adjusting disc top 42 on the adjusting disc 4 is in contact with the adjusting disc blocking strip 53 to play a role in limiting the excessive rotation of the adjusting disc 4; the side edge of the rear panel 6 is provided with a rear hook claw 60 which is matched with the rear hook claw 52 of the side shell 5, and the rear hook claw 52 is used for fastening the rear panel 6 on the rear side of the side shell 5; the provision of the rear claw bayonet 60 plays a role in preventing rotational sliding between the rear panel 6 and the side case 5, increasing the stability of the structure.

The back panel 6 is provided with a switch component, the switch component is matched with the adjusting disk top piece 42 on the adjusting disk 4, when the adjusting disk 4 rotates to a certain angle, the adjusting disk top piece 42 jacks up the cylindrical end of the arc-shaped elastic metal piece 65, meanwhile, the side surface of the adjusting disk top piece 42 is abutted against the adjusting disk resistance strip 53, as the two ends of the adjusting disk top piece 42 are slightly smaller than the wedge-shaped bulge structure in the middle, the adjusting disk top piece 42 slides across the cylindrical end of the arc-shaped elastic metal piece 65 to generate finger-sensing and make a ' click ' when abutted against the adjusting disk resistance strip 53, the elastic contact between the arc-shaped elastic metal piece 65 and the switch contact opening 64 is jacked up by the adjusting disk top piece 42, the switch component is in an off state, the adjusting disk 4 is reversely rotated, the cylindrical end of the arc-shaped elastic metal piece 65 also generates finger-sensing and makes a ' click ' when pivoted up ', the cylindrical end of the arc-shaped elastic metal piece 65 is abutted against the switch contact opening 64 under the action of elasticity, and the switch component is in an on state.

The above examples illustrate only one embodiment of the utility model, which is described in more detail and is not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. A single-joint potentiometer with a rotating shaft riveted with an adjusting disc comprises a rotating shaft (1), a rotating shaft fixing plate (2), a front panel (3), an adjusting disc (4), a side shell (5) and a rear panel (6); the rotary shaft (1) is of a cylindrical structure, the rotary shaft (1) penetrates through the rotary shaft fixing plate (2) and the front panel (3) and is fixedly connected with the regulating disc (4), the rotary shaft fixing plate (2) is arranged in front of the front panel (3) and is fixedly connected with the front panel (3) by taking the exposed end direction of the rotary shaft as the front direction, the front panel (3) is a circuit board provided with a varistor circuit, the regulating disc (4) is arranged behind the front panel (3), the front part of the regulating disc (4) is provided with an electric brush connected with the varistor circuit in the front panel (3), the side shell (5) is in a cylinder shape surrounded by a metal plate and is arranged between the front panel (3) and the rear panel (6) and surrounds the periphery of the regulating disc (4); the rotary shaft (1) comprises a shaft head (10) arranged at the forefront end of the rotary shaft, the shaft head (10) is cylindrical coaxial with the rotary shaft and thicker than other structures of the rotary shaft, the rotary shaft (1) is integrally formed, and the rear end of the rotary shaft (1) is fixed with the adjusting disc (4) through a mortise and tenon structure.

2. The single-joint potentiometer with the riveted rotary shaft and the adjusting disk according to claim 1, wherein the rotary shaft (1) further comprises a rotary shaft tenon (13), and the rotary shaft tenon (13) is arranged at the rear end of the rotary shaft (1) and is perpendicular to the center of the cylindrical surface and is in a straight-line bulge; the adjusting disc (4) comprises a mortise (40), and the mortise (40) is arranged in the center of the adjusting disc (4) and is hollowed out in a square shape; the rotary shaft tenon (13) passes through the mortise (40) and is riveted behind the mortise (40).

3. The single-joint potentiometer with the riveted rotary shaft and the adjusting disk according to claim 2, wherein the rotary shaft fixing plate (2) comprises a fixing plate base plate (20), a rotary shaft fixing tube (21) and annular protrusions (23), the rotary shaft fixing tube (21) vertically penetrates through the fixing plate base plate (20) and is fixed on the fixing plate base plate (20) in a cylindrical tubular structure, the rear end of the rotary shaft fixing tube (21) penetrates through the fixing plate base plate (20) and forms the annular protrusions (23) on the fixing plate base plate (20), the inner diameter of the rotary shaft fixing tube (21) is consistent with the outer diameter of the middle section of the rotary shaft (1), a shaft head (10) of the rotary shaft (1) abuts against the front part of the rotary shaft fixing tube (21), the middle section of the rotary shaft (1) penetrates through the rotary shaft fixing tube (21) and is rotationally connected with the rotary shaft fixing tube (21), and the front part of the adjusting disk (4) abuts against the rear part of the annular protrusions (23).

4. A single-joint potentiometer with a riveted rotary shaft and an adjusting disc according to claim 3, wherein the rotary shaft (1) further comprises anti-slip insections (11) and a straight incision (12), the anti-slip insections (11) are longitudinally carved on the side surface of the shaft head (10), and the straight incision (12) is a straight incision cut out along the axis of the shaft head (10) at the foremost end of the shaft head (10).

5. The single-joint potentiometer with the riveted rotary shaft and the adjusting disk according to claim 4, wherein the rotary shaft fixing plate (2) further comprises an annular groove (24), a panel clamp (25), a clamp hook groove (26) and a fixing plate clamp hook opening (27), the annular groove (24) is arranged on the periphery of the annular bulge (23), and the panel clamp (25) is arranged on two sides of the rear plate surface of the fixing plate base plate (20) in a small columnar bulge mode; the claw hooking grooves (26) are concavely arranged on two sides of the front plate surface of the fixed plate substrate (20) in a nail shape, and square notches serving as the fixed plate claw hooking bayonets (27) are formed in the edges of the fixed plate substrate (20) corresponding to the claw hooking grooves (26); wherein the rotating shaft fixing plate (2) is integrally formed.

6. The single-joint potentiometer with the riveted rotary shaft and the adjusting disc according to claim 5, wherein the front panel (3) is in a plate shape with an upper round lower part, a plurality of panel pins (30) connected with a variable resistance circuit in the front panel (3) are arranged on the lower side of the front panel (3) side by side, a circular hollow (31) is arranged in the center of the front panel (3), the size of the circular hollow (31) is slightly larger than the outer diameter of the annular bulge (23), symmetrical small notches are arranged on two sides of the front panel (3) and are panel bayonets (32), the size and the position of the panel bayonets (32) are matched with those of the panel clamping nails (25), and square notches which are hook bayonets (33) are respectively arranged on the upper part and the lower part of the panel bayonets (32) on two sides; the size and the position of the claw hooking bayonet (33) correspond to those of the fixed plate claw hooking bayonet (27).

7. The single-joint potentiometer with the riveted rotary shaft and the adjusting disc according to claim 6, wherein the adjusting disc (4) further comprises an adjusting disc reinforcing ring (41), an adjusting disc top (42) and an adjusting disc front protrusion (44), and the adjusting disc reinforcing ring (41) is an annular protrusion arranged at the rear part of the adjusting disc (4) at the periphery of the mortise (40); the adjusting disc top (42) is arranged on the periphery of the rear side of the adjusting disc (4), and the adjusting disc top (42) is of a wedge-shaped bulge structure with two ends slightly smaller than the middle part; the front center of the adjusting disc (4) is provided with a convex round surface around the mortise (40) as a front convex part (44) of the adjusting disc; wherein the adjusting disc (4) is integrally formed.

8. The single-joint potentiometer with the riveted rotary shaft and the adjusting disc according to claim 7, wherein the side shell (5) comprises a shell (50), a front hook claw (51), a rear hook claw (52), an adjusting disc resistance bar (53) and a connecting buckle (54), the shell (50) is of a cylindrical structure formed by rolling a metal sheet, and two ends of the metal sheet are mutually buckled at the lower part of the shell (50) to form the connecting buckle (54); four front hooks (51) are arranged around the front part of the shell (50), the front hooks (51) are sheet hooks, the size and the position of the front hooks (51) are matched with the hooks bayonet (33), the fixing plate hooks bayonet (27) and the hooks groove (26), and the shell (50) and the front panel (3) are fixed behind the rotating shaft fixing plate (2) through the front hooks (51); the rear hook claw (52) is arranged at the periphery of the rear part of the shell (50) behind the front hook claw (51), the rear hook claw (52) is also a sheet hook, and the rear panel (6) is fixed at the rear part of the shell (50) through the rear hook claw (52); the inner side of the upper part of the shell (50) is provided with an adjusting disc resistance bar (53), the adjusting disc resistance bar (53) is a square protrusion, the adjusting disc resistance bar (53) is in contact with an adjusting disc top (42) on an adjusting disc (4) which rotates positively and negatively to a certain angle, and the side shell (5) is formed by curling and folding the same piece of metal sheet.

9. The single-joint potentiometer with the riveted rotary shaft and the adjusting disc according to claim 8, wherein four square notches are formed in the side edge of the rear panel (6) and are rear hook claw bayonets (60), and the size and the position of the rear hook claw bayonets (60) are matched with those of the rear hook claws (52).

10. A single-joint potentiometer with a riveted joint rotary shaft and a regulating disc according to claim 9, characterized in that the rear panel (6) is provided with a switch assembly which is matched with the regulating disc top (42); the switch assembly comprises a first wiring pin (61), a second wiring pin (62), a U-shaped hard metal sheet (63), a switch contact opening (64) and an arc-shaped elastic metal sheet (65); the first wire connecting pin (61) and the second wire connecting pin (62) penetrate through the rear panel (6) and are arranged behind the rear panel (6), and the U-shaped hard metal sheet (63) is fixedly arranged in front of the rear panel (6) and is connected with the first wire connecting pin (61); the switch contact opening (64) is a hard metal sheet and is fixedly arranged in front of the rear panel (6) and connected with the second wiring pin (62); the U-shaped hard metal sheet (63) is not in direct contact with the switch contact opening (64); an arc-shaped opening is arranged below the switch contact opening (64); the arc elastic metal sheet (65) is a curled elastic metal sheet, one end of the arc elastic metal sheet is fixedly connected with the U-shaped hard metal sheet (63), the other end of the arc elastic metal sheet is curled into a cylinder shape and is elastically abutted against an arc opening below the switch contact opening (64), and the adjusting disc top (42) is abutted against the curled cylinder-shaped end of the arc elastic metal sheet (65) after rotating for a certain angle and is disconnected with the switch contact opening (64).