CN213520558U - Extension line socket - Google Patents

Abstract

The utility model discloses an extension line socket, including switch module, plug bush and casing, the casing includes relative upper cover and the drain pan that sets up, switch module is located the one end of upper cover inside, the plug bush is fixed in the casing, the upper cover is equipped with the jack of cooperation plug bush, switch module includes the upper casing, the lower extreme of upper casing is equipped with the lower casing, the upper casing upside is equipped with shift knob and switch spring, a slider is connected to the switch spring lower extreme, be equipped with the switch circuit board in the lower casing, switch spring and slider pass the switch circuit board, the downside of switch circuit board is equipped with the movable contact of cooperation slider, shift knob articulates on the upper casing, the movable contact articulates on the lower casing, the hinge axis of shift knob and movable contact is parallel; the switch circuit board is provided with a light source; the switch button is provided with a light-transmitting thin wall; the upside of the plug bush is provided with an outward-turning chamfer. The utility model has the advantages that the lamp is prevented from being too bright; the plug can not be blocked in the process when the plug enters the plug bush under the full-range stress.

Description

Extension line socket

Technical Field

The utility model belongs to the technical field of the socket technique and specifically relates to an extension line socket.

Background

The push type of the traditional extended line socket switch module is more and adopts thin wires to connect, the internal structure is complex and has a sharper condition, so that the internal metal generates heat and the current carrying of the thin wires is insufficient to cause considerable potential safety hazards. Meanwhile, the problem that the switch module does not have light display exists, when the extension line socket without the lamp display is used, whether the extension line socket is in an on or off state is often forgotten, unnecessary loss of lives and properties can be caused, and certainly, the sleep of people and the working efficiency of the next day are influenced due to the fact that certain extension line socket lamps are too bright at dark night; the existing plug bush has a complex structure and sharp edges and corners, and production workers easily scratch and damage related accessories inside the extension line socket in the assembling process; and adopt the plug bush structure that old national standard circle inserted formula and flat formula of inserting combined together, extravagant copper product material, circle simultaneously insert the plug bush less with plug bolt contact surface, the condition of easy emergence contact failure.

For example, CN2281014 discloses an "extension socket with improved structure" in chinese patent document, which applies that an electrode substrate is directly punched by a copper sheet into a substrate assembly with front and rear end points connected, and then is sequentially broken and decomposed into two electrode substrates, a conductive substrate and a ground substrate, wherein one end of the substrate assembly is respectively provided with a terminal for connecting a power line on the electrode substrate, the conductive substrate and the ground substrate, and the other end is respectively provided with a quick connector for nesting a jump-off type switch with a lamp, so that the joint terminal and the quick connector are integrated with the electrode substrate, and the joint terminal and the quick connector have the effect of being quickly pressed with the power line and being quickly inserted into a bottom shell, and the switch with the lamp can be quickly nested and fixedly connected with the substrate without soldering tin. The disadvantages are that: 1. although the night lamp is arranged, the lamp is arranged on the switch, so that the brightness is strong, and the rest of people is influenced; 2. the upper end of the electrode pole piece has a sharp edge angle, and production workers easily scratch and damage related accessories inside the extension line socket in the assembling process; the adoption is the plug structure of formula of inserting is circled to the old country standard, extravagant copper product material, and it is less with plug bolt contact surface to circle the plug bush simultaneously, the condition of easy emergence contact failure.

Disclosure of Invention

Based on the defects of the existing extension line socket, the utility model provides an extension line socket, which realizes the light transmission of a switch button through a light transmission thin wall and avoids the lamp from being over-bright; the arrangement of the outward-turning chamfer ensures that the metal plug cannot be blocked in the process of the whole stress when entering the plug bush.

The utility model discloses a further purpose is to guarantee that the area of contact of copper spare and metal plug guarantees the maximize, is difficult for haring components and parts such as the inside power cord of extension line socket.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme.

An extension line socket comprises a switch module, an insert sleeve and a shell, wherein the shell comprises an upper cover and a bottom shell which are arranged oppositely, the switch module is positioned at one end inside the upper cover, the insert sleeve is fixed in the shell, and the upper cover is provided with an insertion hole matched with the insert sleeve; the switch circuit board is provided with a light source; the switch button is provided with a light-transmitting thin wall; the upside of the plug bush is provided with an outward-turning chamfer.

In experience, the slide bar type switch is more in accordance with human mechanics, and the hand feeling comfort level is greatly improved; the light source can help to judge the on-off of the socket and can visually judge the working state of the extension line socket; the light transmission of the switch button is realized through the light transmission thin wall, so that the lamp is prevented from being over-bright; the arrangement of the outward-turning chamfer ensures that the process blockage cannot occur in the whole range of stress of the metal plug entering the plug bush; meanwhile, the contact area between the copper piece and the metal plug is guaranteed to be maximized, the peripheral chamfer is smooth, and components such as a power line and the like in the extension line socket are not easily damaged.

Preferably, the switch button is provided with a light shielding tape on a side surface of the light source. The shading band prevents that light from distributing away from the switch module gap, and perfect solution does not have the lamp to show and the lamp shows the problem of shining excessively, guarantees that the customer uses the best experience impression night.

Preferably, the plug bush comprises an E pole plug bush, an L pole plug bush and an N pole plug bush; the E pole plug bush comprises a U-shaped inner clamp, and an inner-turning cambered plate is arranged on the inner side of the inner diameter. The E pole plug bush, the L pole plug bush and the N pole plug bush respectively correspond to the grounding wire, the live wire and the zero wire. The increase is difficult for appearing the pulling and inserting power reduction condition with the atress area of external metal plug under the repeated condition of pulling out and inserting.

Preferably, the L-pole plug bush and the N-pole plug bush both comprise a semi-cylindrical back buckle, the semi-cylindrical back buckle comprises a semicircular connecting surface and a connecting plate, two ends of the connecting surface are arranged at acute angles, and the outward-turning chamfer is located on the upper side of the connecting plate. The stress of the plug bush can be increased, and the situation that the number of times of pulling and inserting is too large and slack can not occur.

Preferably, the L-pole plug bush is provided with three groups of semi-cylindrical back buckles, and each group of semi-cylindrical back buckles comprises two back buckle units which are continuously connected in series; one of the buckling units in the semicircular buckling units in the same group of the L-pole plug bush is arranged in parallel and opposite to the inner clamp of the E-pole plug bush, and the other buckling unit corresponds to the inner clamp and corresponds to two pins of the three-pin plug; three groups of semi-cylindrical back buckles are also arranged on the N pole plug bush, and the semi-cylindrical back buckle on the N pole plug bush and the semi-cylindrical back buckle on the L pole plug bush are arranged in axial symmetry relative to the clamped inner clamp. The socket can be matched with a three-pin plug and a two-pin plug, and has good applicability; the jacks corresponding to the two-pin plug and the jacks corresponding to the grounding wires of the three-pin plug are arranged oppositely in parallel, so that the appearance is more attractive.

Preferably, the E pole plug bush, the L pole plug bush and the N pole plug bush are respectively manufactured by adopting an integrated forming process. The manufacturing and forming are convenient, the integrity is good, and the structure function is reliable.

The utility model discloses an useful part lies in: the switch has comfortable hand feeling; the switch is provided with the lamp display, and the brightness of the lamp display is influenced by the light-transmitting thin wall, so that the lamp display cannot be too bright and is comfortable; the arrangement of the outward-turning chamfer ensures that the process blockage cannot occur in the whole range of stress of the metal plug entering the plug bush; meanwhile, the contact area between the copper piece and the metal plug is guaranteed to be maximized, the peripheral chamfer is smooth, and components such as a power line and the like in the extension line socket are not easy to damage; the plug bush atress is big, can not appear pulling out the condition that inserts the too much lax of number of times.

Drawings

Fig. 1 is an exploded view of the structure of the present invention.

Fig. 2 is a schematic bottom structure of the present invention.

Fig. 3 is a schematic structural view of the insert sleeve of the present invention.

Fig. 4 is a schematic structural diagram of the switch module of the present invention.

Fig. 5 is a schematic view of the structure of the bottom of the switch knob in the present invention.

In the figure: three-pin plug 10, two-pin plug 11, upper cover 12, jack 121, bottom case 13, plastic extension socket 2, inner clamp 21, arc panel 22, L pole plug bush 3, N pole plug bush 4, semi-cylindrical back-off 5, outward chamfer 51, substrate 6, switch module 7, upper shell 70, lower shell 71, switch button 72, light-transmitting thin wall 720, switch spring 723, switch circuit board 722, lumen 721, switch spring 723, switch circuit board 73, movable contact 74, static contact 75, bead 76, conductive spring 77, N pole support plate 78, L pole support plate 79.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description.

Examples

As shown in fig. 1 to 5, an extension line socket comprises a switch module 7, a plug bush and a casing, wherein the casing comprises an upper cover 12 and a bottom shell 13 which are arranged oppositely, the switch module 7 is positioned at one end inside the upper cover 12, the plug bush is fixed in the casing, and the upper cover 12 is provided with a jack 121 matched with the plug bush. The upper side of the upper shell is provided with a switch button 72 and a switch spring 723, the lower end of the switch spring 723 is connected with a sliding block 724, and the lower side of the switch button 72 is fixedly provided with the limit switch spring 723 and a radial cavity 722 of the sliding block 724, so that the sliding block 724 and the switch spring 723 can only move axially. The switch knob is rotatably coupled to the upper case, and the switch knob protrudes to an upper side of the upper cover 12. The lower shell is fixedly arranged on the bottom shell; a switch circuit board 73 is arranged in the lower shell 71, a switch spring 723 and a sliding block 724 penetrate through the switch circuit board 73, a movable contact piece 74 matched with the sliding block 724 is arranged on the lower side of the switch circuit board 73, the switch button 72 is hinged on the upper shell, the movable contact piece 74 is hinged on the lower shell 71, and the hinge axes of the switch button 72 and the movable contact piece 74 are parallel; a light source is arranged on the switch circuit board 73; the switch button 72 is provided with a light-transmitting thin wall 720; the upper side of the plug bush is provided with an outward-turning chamfer 51. The light source adopts the vertically arranged lamp bead 76, and the switch button 72 is provided with a shading belt 721 on the side surface of the light source. Shading area 721 is the slope setting, and the outer end of shading area 721 is connected to the outer wall of lumen 722, and the tip that shading area 721 connects lumen 722 is the maximum position of height.

The plug bush comprises an E pole plug bush 2, an L pole plug bush 3 and an N pole plug bush 4; the plug bush is limited by a plastic extension socket 14 fixed in the upper cover 12. The E pole insert 2 comprises a U-shaped inner clamp 21, and an inverted cambered plate 22 is arranged on the inner side of the inner diameter. The L pole plug bush 3 and the N pole plug bush 4 both comprise a semi-cylindrical back-off 5, the semi-cylindrical back-off 5 comprises a semicircular connecting surface and a connecting plate, two ends of the connecting surface are arranged at acute angles, and the outward-turning chamfer 51 is located on the upper side of the connecting plate. The L-pole plug bush 3 is provided with three groups of semi-cylindrical back buckles 5, the three groups of semi-cylindrical back buckles 5 are connected through a base plate 6, and each group of semi-cylindrical back buckles 5 comprises two back buckle units which are connected in series through a straight copper plate; one of the back-off units in the same group of semicircular back-off of the L-pole plug bush 3 is arranged in parallel and opposite to the inner clamp 21 of the E-pole plug bush 2, and the other back-off unit and the inner clamp 21 correspond to two pins of the three-pin plug 10; three groups of semi-cylindrical back buckles 5 are also arranged on the N pole plug bush 4, and the semi-cylindrical back buckles on the N pole plug bush 4 and the semi-cylindrical back buckles on the L pole plug bush 3 are arranged in axial symmetry relative to the clamped inner clamp 21. The N pole plug bush 4 and the E pole plug bush 2 are correspondingly provided with a base plate 6, and the E pole plug bush, the L pole plug bush and the N pole plug bush are all manufactured by adopting an integrated forming process. The E pole plug bush 2, the L pole plug bush 3 and the N pole plug bush 4 are all copper plug bushes. The switch module 7 further comprises an L pole supporting plate 79 and an N pole supporting plate 78 which are fixedly arranged in the lower shell 71, the L pole supporting plate 79 is connected with the base plate 6 of the L pole plug bush 3 through a guide, the N pole supporting plate 78 is connected with the base plate 6 of the N pole plug bush 4 through a lead, the N pole supporting plate 78 and the L pole supporting plate 79 are electrically connected with a circuit board through a conductive spring 77 respectively, a C-shaped pipe of a limiting conductive spring 77 is arranged on the lower shell 71, a static contact piece 75 is fixedly arranged at the bottom of the lower shell 71 below the dynamic contact piece 74, the dynamic contact piece 74 rotates to realize on-off between the dynamic contact piece 74 and the static contact piece 75, and on-off control is realized.

The switch module 7 functions as follows, firstly, the slide block 724 is arranged on the switch spring 723 and is placed in the tube cavity 722 of the switch button, and the switch circuit board 73 is also arranged in the switch upper shell; the L pole and N support pieces and the static contact piece 75 are arranged at corresponding positions, the movable contact piece 74 is arranged above the static contact piece 75, the circuit board is arranged on the upper shell of the switch, and the circuit board spring is arranged at a proper position of the upper shell of the switch.

The switch control principle is as follows: switch N utmost point, L utmost point support piece connects the 220v power cord, shift knob control slider 724 indirect control movable contact spring 74, thereby control L utmost point break-make and arrange and insert the break-make, circuit board downside conducting spring 77 is arranged in the N utmost point, L utmost point support piece top is connected switch circuit board 73 and is switched on LED lamp pearl 76 through the rectification, thereby carry out corresponding light according to circuit break-make state and show, the switch button adopts slope formula shading area 721 design to guarantee that the light beam can not distribute away from switch module 7 gap, thin wall printing opacity processing has been done at switch button printing opacity department simultaneously and has guaranteed that the customer is experiencing the best of using night. In experience, the slide bar type switch is more in accordance with human mechanics, and the hand feeling comfort level is greatly improved; the light source can help to judge the on-off of the socket and can visually judge the working state of the extension line socket; the light transmission of the switch button 72 is realized by the light transmission thin wall 720, and the lamp is prevented from being over-bright. The socket can be matched with the three-pin plug 10 and the two-pin plug 11, and has good applicability; the jack 121 that corresponds two-pin plug 11 is parallel relative setting with the jack 121 that corresponds three-pin plug 10 earth connection, and is more pleasing to the eye, and the jack 121 of this application is the rectangle, adopts full flat formula structure of inserting, guarantees the area of contact of copper spare and metal plug and guarantees the maximize. The inner clamp 21 can increase the stress area of the external metal plug, and the plugging force is not easy to reduce under the repeated plugging condition; the adoption of the semi-cylindrical back-off 5 can increase the stress of the plug bush without the situation of excessive and loose plugging times; the arrangement of the outward-turning chamfer 51 ensures that the process blockage can not occur in the whole range of stress of the metal plug entering the plug bush; meanwhile, the contact area between the copper piece and the metal plug is guaranteed to be maximized, the peripheral chamfer is smooth, and components such as a power line and the like in the extension line socket are not easily damaged.

Claims (6)

1. An extension line socket comprises a switch module, an insert sleeve and a shell, wherein the shell comprises an upper cover and a bottom shell which are arranged oppositely, the switch module is positioned at one end inside the upper cover, the insert sleeve is fixed in the shell, and the upper cover is provided with an insertion hole matched with the insert sleeve; the switch circuit board is provided with a light source; the switch button is provided with a light-transmitting thin wall; the upside of the plug bush is provided with an outward-turning chamfer.

2. The extension cord socket of claim 1, wherein the switch button is provided with a light shielding tape at a side of the light source.

3. The extension line socket of claim 1, wherein the plug bush comprises an E-pole plug bush, an L-pole plug bush, and an N-pole plug bush; the E pole plug bush comprises a U-shaped inner clamp, and an inner-turning cambered plate is arranged on the inner side of the inner diameter.

4. The extension cord socket of claim 3, wherein the L-pole socket and the N-pole socket each include a semi-cylindrical latch, the semi-cylindrical latch including a semi-circular connecting surface and a connecting plate disposed at an acute angle between two ends of the connecting surface, the inverted chamfer being located on an upper side of the connecting plate.

5. The extension line socket according to claim 3 or 4, wherein the L-pole plug bush is provided with three groups of semi-cylindrical back buckles, each group of semi-cylindrical back buckles comprises two back buckle units which are arranged in series; one of the buckling units in the semicircular buckling units in the same group of the L-pole plug bush is arranged in parallel and opposite to the inner clamp of the E-pole plug bush, and the other buckling unit corresponds to the inner clamp and corresponds to two pins of the three-pin plug; three groups of semi-cylindrical back buckles are also arranged on the N pole plug bush, and the semi-cylindrical back buckle on the N pole plug bush and the semi-cylindrical back buckle on the L pole plug bush are arranged in axial symmetry relative to the clamped inner clamp.

6. The extension line socket as claimed in claim 3 or 4, wherein the E pole plug bush, the L pole plug bush and the N pole plug bush are respectively manufactured by an integral molding process.

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