阅读说明：本技术 一种多输入网络接口转换器 (Multi-input network interface converter ) 是由 柴军锋 仝秋娟 于 2021-07-05 设计创作，主要内容包括：本发明公开了一种多输入网络接口转换器,属于网络接口转换器领域。一种多输入网络接口转换器,包括壳体和安装板,安装板固定连接于壳体内壁,还包括：转换装置,连接于安装板侧壁,转换装置包括驱动组件、传动组件、转轴、安装架和固定架；驱动组件连接于壳体侧壁,传动组件连接于安装板侧壁,且传动组件输入端与驱动组件输出端固定相连；第一传输组件,设置于固定架内部；第二传输组件,连接于安装架内壁,第一传输组件与第二传输组件相配合；本发明在选择输出模式时,铜针与铜板接触位置为铜板中心位置,可对输出模式进行精确选择,提升了传输效果的同时增加了装置的使用寿命,结构合理,操作简单,实用性强。(The invention discloses a multi-input network interface converter, and belongs to the field of network interface converters. The utility model provides a many input network interface converter, includes casing and mounting panel, and mounting panel fixed connection still includes in casing inner wall: the conversion device is connected to the side wall of the mounting plate and comprises a driving assembly, a transmission assembly, a rotating shaft, a mounting frame and a fixing frame; the driving assembly is connected to the side wall of the shell, the transmission assembly is connected to the side wall of the mounting plate, and the input end of the transmission assembly is fixedly connected with the output end of the driving assembly; the first transmission assembly is arranged in the fixed frame; the second transmission assembly is connected to the inner wall of the mounting frame, and the first transmission assembly is matched with the second transmission assembly; when the output mode is selected, the contact position of the copper needle and the copper plate is the center position of the copper plate, the output mode can be accurately selected, the transmission effect is improved, the service life of the device is prolonged, and the device is reasonable in structure, simple to operate and high in practicability.)

1. The utility model provides a multiple input network interface converter, includes casing (1) and mounting panel (101), mounting panel (101) fixed connection is in casing (1) inner wall, its characterized in that still includes:

the conversion device is connected to the side wall of the mounting plate (101) and comprises a driving assembly, a transmission assembly, a rotating shaft (102), a mounting frame (103) and a fixing frame (104);

the driving assembly is connected to the side wall of the shell (1), the transmission assembly is connected to the side wall of the mounting plate (101), the input end of the transmission assembly is fixedly connected with the output end of the driving assembly, the rotating shaft (102) is rotatably connected to the side wall of the mounting plate (101), one end of the rotating shaft (102) penetrates through the mounting plate (101) and is fixedly connected with the output end of the transmission assembly, the mounting frame (103) is fixedly connected to one end, far away from the mounting plate (101), of the rotating shaft (102), the fixing frame (104) is fixedly connected to the side wall of the mounting plate (101), and the fixing frame (104) is matched with the rotating shaft (102);

the first transmission assembly is arranged inside the fixed frame (104);

the second transmission assembly is connected to the inner wall of the mounting frame (103), and the first transmission assembly is matched with the second transmission assembly;

the heat dissipation fan (105), the input PCB (106) and the output port (107) are all arranged inside the shell (1), and heat dissipation holes are drilled in the outer wall of the shell (1).

2. The multiple-input network interface converter according to claim 1, wherein the driving assembly comprises a sleeve (2), a driving shaft (201), a sliding rod (202), and a resilient mechanism, the sleeve (2) is slidably connected to a side wall of the housing (1), a limiting groove is provided on the housing (1), the sleeve (2) is slidably connected to the housing (1) through the limiting groove, the driving shaft (201) is slidably connected to the inside of the sleeve (2), a sliding groove (203) is provided on an outer wall of the driving shaft (201), the sliding rod (202) is fixedly connected to an inner wall of the sleeve (2), the sliding rod (202) is matched with the sliding groove (203), the resilient mechanism is fixedly connected to a side wall of the mounting plate (101), and the resilient mechanism is matched with the sleeve (2).

3. The multiple-input network interface converter according to claim 2, wherein the resilient mechanism comprises a support frame (3) and a first spring (301), the support frame (3) is fixedly connected to a side wall of the mounting plate (101), the support frame (3) is rotatably connected to the driving shaft (201), one end of the first spring (301) is fixedly connected to the side wall of the support frame (3), the other end of the first spring is fixedly connected to the sleeve (2), and the first spring (301) is sleeved with the driving shaft (201).

4. The multiple-input network interface converter according to claim 1, wherein the transmission assembly comprises a first gear (4), a second gear (401) and an intermittent transmission mechanism, the first gear (4), the second gear (401) and the intermittent transmission mechanism are all rotatably connected to the side wall of the mounting plate (101), the first gear (4) is fixedly connected with the driving shaft (201), the second gear (401) is meshed with the first gear (4), and the second gear (401) is connected with the intermittent transmission mechanism through a belt.

5. The multiple-input network interface converter according to claim 4, wherein the intermittent transmission mechanism comprises a rotary disc (5), a clamping rod (501) and a chuck (6), the rotary disc (5) is rotatably connected to the side wall of the mounting plate (101), the rotary disc (5) is connected with the second gear (401) through a belt, the clamping rod (501) is fixedly connected to the outer wall of the rotary disc (5), the chuck (6) is fixedly connected to one end of the rotating shaft (102) penetrating through the mounting plate (101), and the clamping rod (501) is matched with the chuck (6).

6. The multiple-input network interface converter according to claim 5, wherein the second gear (401) is a one-way transmission gear, and the transmission ratio of the second gear (401) to the rotary disk (5) through a belt is 2: 1.

7. the multiple-input network interface converter according to claim 1, wherein the first transmission assembly comprises a copper plate (7), the copper plate (7) is detachably connected inside the fixed frame (104), 4-8 groups of copper plates (7) are provided, an insulating block is provided between two adjacent groups of copper plates (7), and a clamping groove is provided on the outer wall of each copper plate (7), and the clamping groove is matched with the second transmission assembly.

8. The multiple-input network interface converter according to claim 7, wherein the second transmission assembly comprises an output PCB (8), a fixed cylinder (801), a second spring (802) and a copper pin (803), the output PCB (8) is connected to the inner wall of the mounting frame (103), the fixed cylinder (801) is fixedly connected to the side wall of the output PCB (8), the copper pin (803) is slidably connected to the inside of the fixed cylinder (801), one end of the second spring (802) is fixedly connected to the inner wall of the fixed cylinder (801), the other end of the second spring is fixedly connected to the copper pin (803), the copper pin (803) is connected to the terminal of the output PCB (8) through a wire, the copper pin (803) is matched with the copper plate (7), and the output PCB (8) is electrically connected to the output port (107).

9. The multiple-input network interface converter according to claim 1, wherein the fixing frame (104) and the fixing cylinder (801) are made of insulating materials.

10. The multiple-input network interface converter according to claim 1, wherein the outer wall of the housing (1) is provided with an indicator light (10), the input PCB (106) is provided with 4-8 sets of input ports (9), the input ports (9) are electrically connected with the copper plate (7), the outer wall of the housing (1) is provided with a heat dissipation mesh matched with the heat dissipation holes, and the heat dissipation mesh is matched with the heat dissipation fan (105).

Technical Field

The invention relates to the technical field of network interface converters, in particular to a multi-input network interface converter.

Background

Along with the application of the 5G era and the technology of the Internet of things, the communication network realizes sharing and fusion, the conversion of network interfaces is important, and higher requirements are put forward on the safety, stability and high reliability of the conversion; the mobile phone terminal, the computer terminal, the server and the cloud terminal need network interfaces to receive, transmit and convert data or information; switching among different networks of a laboratory training room is more and more frequent, a multi-input network converter is needed, and network or data switching needs to be carried out in a comprehensive machine room or a monitoring center in the face of different input networks or data.

Through retrieval, the chinese patent application No. 201910655270.9 discloses a multiple-input network interface converter, which includes a support column, an input PCB, a housing, a bearing, a limit column, a binding post, a protective cover, an output PCB, a limit bolt, an access signal transmission line and an output signal transmission line; the above patents suffer from the following disadvantages: the device is too complicated in the operation when changing output mode, is difficult for carrying out accurate location to selected output mode, and area of contact is little between copper needle and the copper sheet, leads to signal transmission efficiency low, and poor stability, long-time use lead to copper needle and copper sheet wearing and tearing serious, and life is short, and then leads to the practicality low, therefore the device needs to improve.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a multi-input network interface converter.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides a multiple input network interface converter, includes casing and mounting panel, mounting panel fixed connection still includes in casing inner wall:

the conversion device is connected to the side wall of the mounting plate and comprises a driving assembly, a transmission assembly, a rotating shaft, a mounting frame and a fixing frame;

the driving assembly is connected to the side wall of the shell, the transmission assembly is connected to the side wall of the mounting plate, the input end of the transmission assembly is fixedly connected with the output end of the driving assembly, the rotating shaft is rotatably connected to the side wall of the mounting plate, one end of the rotating shaft penetrates through the mounting plate and is fixedly connected with the output end of the transmission assembly, the mounting frame is fixedly connected to one end, far away from the mounting plate, of the rotating shaft, the fixing frame is fixedly connected to the side wall of the mounting plate, and the fixing frame is matched with the rotating shaft;

the first transmission assembly is arranged in the fixed frame;

the second transmission assembly is connected to the inner wall of the mounting frame, and the first transmission assembly is matched with the second transmission assembly;

the heat dissipation fan, the input PCB and the output port are all arranged inside the shell, and heat dissipation holes are drilled in the outer wall of the shell.

Preferably, drive assembly includes sleeve, drive shaft, slide bar and resilience mechanism, sleeve sliding connection is in the casing lateral wall, be provided with the spacing groove on the casing, the sleeve passes through the spacing groove and links to each other with the casing slip, drive shaft sliding connection is inside the sleeve, the sliding tray has been seted up to the drive shaft outer wall, slide bar fixed connection is in the sleeve inner wall, just the slide bar cooperatees with the sliding tray, resilience mechanism fixed connection is in the mounting panel lateral wall, resilience mechanism cooperatees with the sleeve.

Preferably, the rebounding mechanism comprises a support frame and a first spring, the support frame is fixedly connected to the side wall of the mounting plate, the support frame is rotatably connected with the driving shaft, one end of the first spring is fixedly connected to the side wall of the support frame, the other end of the first spring is fixedly connected with the sleeve, and the first spring is sleeved with the driving shaft.

Preferably, the transmission assembly comprises a first gear, a second gear and an intermittent transmission mechanism, the first gear, the second gear and the intermittent transmission mechanism are all rotatably connected to the side wall of the mounting plate, the first gear is fixedly connected with the driving shaft, the second gear is meshed with the first gear, and the second gear is connected with the intermittent transmission mechanism through a belt.

Preferably, intermittent type drive mechanism includes carousel, kelly and chuck, the carousel rotates to be connected in the mounting panel lateral wall, the carousel is connected with the second gear through the belt, kelly fixed connection is in the carousel outer wall, chuck fixed connection passes the one end of mounting panel in the pivot, the kelly cooperatees with the chuck.

Preferably, the second gear is a one-way transmission gear, and the transmission ratio of the second gear to the rotary table through a belt is 2: 1.

preferably, the first transmission assembly comprises a copper plate, the copper plate is detachably connected inside the fixing frame, 4-8 groups of copper plates are arranged, an insulating block is arranged between every two adjacent groups of copper plates, a clamping groove is formed in the outer wall of the copper plate, and the clamping groove is matched with the second transmission assembly.

Preferably, the second transmission assembly comprises an output PCB, a fixing cylinder, a second spring and a copper needle, the output PCB is connected to the inner wall of the mounting frame, the fixing cylinder is fixedly connected to the side wall of the output PCB, the copper needle is slidably connected to the inside of the fixing cylinder, one end of the second spring is fixedly connected to the inner wall of the fixing cylinder, the other end of the second spring is fixedly connected with the copper needle, the copper needle is connected with the wiring end of the output PCB through a wire, the copper needle is matched with the copper plate, and the output PCB is electrically connected with the output port.

Preferably, the fixing frame and the fixing cylinder are made of insulating materials.

Preferably, the outer wall of the shell is provided with an indicator light, the input PCB is provided with 4-8 groups of input ports, the input ports are electrically connected with the copper plate, the outer wall of the shell is provided with a heat dissipation net matched with the heat dissipation holes, and the heat dissipation net is matched with the heat dissipation fan.

Compared with the prior art, the invention provides a multi-input network interface converter, which has the following beneficial effects:

1. this many input network interface converter through pressing down the rotary drum, under drive assembly's drive, the copper needle rotates along with the pivot, every rotary drum of pressing down, and the pivot is rotatory 90, makes copper needle and copper contact position be copper central point and puts, and the cooperation draw-in groove can carry out the accurate selection to output mode, and is rational in infrastructure, easy operation, and the practicality is strong.

2. This many input network interface converter, through the second spring, move to copper draw-in groove position when the copper needle, the copper needle pops out, inside the draw-in groove that the copper needle gos deep into the copper and offers, increase the area of contact of copper needle and copper, promoted the transmission effect, carry on spacingly to copper needle and copper simultaneously, receive the wearing and tearing back when the copper needle, still can contact with the copper line all the time under the effect of second spring, increased life, reduced the later maintenance cost.

3. This many input network interface converter, through setting up the second gear, only provide power when pressing down the sleeve, one-way transmission, novel structure can dispel the heat to casing internal component through heat dissipation fan and radiating groove, avoids influencing transmission effect because of high temperature, avoids internal component to cause the damage simultaneously.

The device has the advantages that the parts which are not involved are the same as or can be realized by adopting the prior art, when the output mode is selected, the contact position of the copper needle and the copper plate is the center position of the copper plate, the output mode can be accurately selected, the transmission effect is improved, the service life of the device is prolonged, the structure is reasonable, the operation is simple, and the practicability is high.

Drawings

Fig. 1 is a schematic structural diagram of a multi-input network interface converter according to the present invention;

fig. 2 is a schematic diagram of an internal structure of a multi-input network interface converter according to the present invention;

FIG. 3 is a right-side isometric view of an internal structure of a multiple-input network interface converter according to the present invention;

fig. 4 is a schematic diagram of a half-section structure of a multi-input network interface converter according to the present invention;

FIG. 5 is a schematic cross-sectional view of a driving module of a multi-input network interface converter according to the present invention;

FIG. 6 is a schematic cross-sectional view of a second transmission module of the multi-input network interface converter according to the present invention;

FIG. 7 is an enlarged view of a portion A of FIG. 2 of the multi-input network interface converter according to the present invention;

fig. 8 is an enlarged view of a portion B in fig. 4 of the multiple-input network interface converter according to the present invention.

In the figure: 1. a housing; 101. mounting a plate; 102. a rotating shaft; 103. a mounting frame; 104. a fixed mount; 105. a heat dissipation fan; 106. inputting the PCB; 107. an output port; 2. a sleeve; 201. a drive shaft; 202. a slide bar; 203. a sliding groove; 3. a support frame; 301. a first spring; 4. a first gear; 401. a second gear; 5. a turntable; 501. a clamping rod; 6. a chuck; 7. a copper plate; 8. outputting the PCB; 801. a fixed cylinder; 802. a second spring; 803. a copper needle; 9. an input port; 10. and an indicator light.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Example 1:

referring to fig. 1-8, a multiple input network interface converter includes a housing 1 and a mounting board 101, the mounting board 101 is fixedly connected to an inner wall of the housing 1, and the converter further includes: the conversion device is connected to the side wall of the mounting plate 101 and comprises a driving assembly, a transmission assembly, a rotating shaft 102, a mounting frame 103 and a fixing frame 104; the driving assembly is connected to the side wall of the shell 1, the transmission assembly is connected to the side wall of the mounting plate 101, the input end of the transmission assembly is fixedly connected with the output end of the driving assembly, the rotating shaft 102 is rotatably connected to the side wall of the mounting plate 101, one end of the rotating shaft 102 penetrates through the mounting plate 101 to be fixedly connected with the output end of the transmission assembly, the mounting frame 103 is fixedly connected to one end, far away from the mounting plate 101, of the rotating shaft 102, the fixing frame 104 is fixedly connected to the side wall of the mounting plate 101, and the fixing frame 104 is matched with the rotating shaft 102; the first transmission assembly is arranged inside the fixed frame 104; the second transmission assembly is connected to the inner wall of the mounting frame 103, and the first transmission assembly is matched with the second transmission assembly; heat dissipation fan 105, input PCB board 106 and output port 107 all set up inside casing 1, and the louvre has been dug on the casing 1 outer wall, under drive assembly's drive, copper needle 803 rotates along with pivot 102, every rotary drum of pressing down, pivot 102 is rotatory 90, make copper needle 803 and copper 7 contact position be copper 7 central point and put, the cooperation draw-in groove can carry out the accurate selection to output mode, and is rational in infrastructure, and easy operation, the practicality is strong.

Drive assembly includes sleeve 2, drive shaft 201, slide bar 202 and resilient mounting, 2 sliding connection of sleeve are in 1 lateral wall of casing, be provided with the spacing groove on the casing 1, sleeve 2 passes through the spacing groove and links to each other with 1 slip of casing, drive shaft 201 sliding connection is inside sleeve 2, sliding tray 203 has been seted up to drive shaft 201 outer wall, slide bar 202 fixed connection is in 2 inner walls of sleeve, and slide bar 202 and sliding tray 203 cooperate, resilient mounting is fixed connection in mounting panel 101 lateral wall, resilient mounting cooperatees with sleeve 2, press sleeve 2 to furthest release, and then drive shaft 201 and rotate under the effect through slide bar 202 and sliding tray 203, and the number of rotations of drive shaft 201 is two rings, thereby drive first gear 4 and rotate, and then drive second gear 401 and rotate, and then provide power for drive assembly.

Rebound mechanism includes support frame 3 and first spring 301, 3 fixed connection of support frame in mounting panel 101 lateral wall, support frame 3 rotates with drive shaft 201 and links to each other, the one end fixed connection of first spring 301 in 3 lateral walls of support frame, the other end and sleeve 2 fixed link to each other, and first spring 301 cup joints with drive shaft 201 mutually, sleeve 2 is released the back, kick-backs to original state under first spring 301's effect, drive shaft 201 antiport, and then drives first gear 4 and rotates.

The transmission assembly comprises a first gear 4, a second gear 401 and an intermittent transmission mechanism, the first gear 4, the second gear 401 and the intermittent transmission mechanism are all rotatably connected to the side wall of the mounting plate 101, the first gear 4 is fixedly connected with the driving shaft 201, the second gear 401 is meshed with the first gear 4 and is connected with the intermittent transmission mechanism through a belt, the rotating cylinder is pressed downwards every time, the rotating shaft 102 rotates 90 degrees, the contact position of the copper needle 803 and the copper plate 7 is the central position of the copper plate 7, and the clamping groove is matched, so that the output mode can be accurately selected.

Intermittent type drive mechanism includes carousel 5, kelly 501 and chuck 6, carousel 5 rotates to be connected in mounting panel 101 lateral wall, carousel 5 is connected with second gear 401 through the belt, kelly 501 fixed connection is in 5 outer walls of carousel, chuck 6 fixed connection passes the one end of mounting panel 101 in pivot 102, kelly 501 and chuck 6 cooperate, the rotary drum is once pressed down to every turn, pivot 102 is rotatory 90, make copper needle 803 and copper 7 contact position be copper 7 central point and put, cooperation draw-in groove, can carry out the accurate selection to output mode.

The second gear 401 is a one-way transmission gear, and the transmission ratio of the second gear 401 to the rotating disc 5 through a belt is 2: 1, the second gear 401 is a one-way transmission gear, and thus does not provide power to the rotating shaft 102 when the sleeve 2 rebounds.

In the invention, referring to the prior art, the number of copper plates 7 and copper needles 803 can be adjusted according to the input port 9, so as to achieve the purpose of multiple input network interfaces, four groups are provided in this embodiment, when the output mode needs to be changed, the sleeve 2 is pressed to be released to the maximum, the driving shaft 201 is driven to rotate under the action of the sliding rod 202 and the sliding groove 203, and the number of rotation turns of the driving shaft 201 is two, so as to drive the first gear 4 to rotate, further drive the second gear 401 to rotate, further drive the rotating disc 5 to rotate through the belt, because the transmission ratio of the second gear 401 to the rotating disc 5 is 2: 1, therefore, every time the rotary table 5 is pressed down for one rotation, and then the rotary table is matched with the chuck 6 through the clamping rod 501, when the rotary table 5 rotates for one rotation, the chuck rotates for 90 degrees, and further the rotary shaft 102 rotates for 90 degrees, and further the mounting frame 103 moves along with the rotary table, and further the output PCB 8 moves, and further the purpose of adjusting the output mode is achieved, meanwhile, after the sleeve 2 is released, the rotary table rebounds to the original state under the action of the first spring 301, the driving shaft 201 rotates reversely, and further the first gear 4 rotates, but the second gear 401 is a one-way transmission gear, therefore, when the sleeve 2 rebounds, power is not provided for the rotary shaft 102, and every time the rotary table is pressed down, the rotary shaft 102 rotates for 90 degrees, so that the contact position of the copper needle 803 and the copper plate 7 is the central position of the copper plate 7, and the clamping groove is matched, so that the output mode can be accurately selected, the structure is reasonable, the operation is simple, and the practicability is strong, the second gear 401 is arranged to provide power only when the sleeve 2 is pressed downwards, so that unidirectional transmission is achieved, and the structure is novel.

Example 2:

referring to fig. 1-6, the first transmission assembly comprises a copper plate 7, the copper plate 7 is detachably connected inside the fixing frame 104, 4-8 groups of copper plates 7 are arranged, an insulating block is arranged between every two adjacent groups of copper plates 7, a clamping groove is formed in the outer wall of each copper plate 7 and matched with the second transmission assembly, and the copper plates 7 are matched with the second wiping assembly to complete mode conversion.

The second transmission assembly comprises an output PCB 8, a fixed cylinder 801, a second spring 802 and a copper needle 803, the output PCB 8 is connected to the inner wall of the mounting rack 103, the fixed cylinder 801 is fixedly connected to the side wall of the output PCB 8, the copper needle 803 is slidably connected to the inside of the fixed cylinder 801, one end of the second spring 802 is fixedly connected to the inner wall of the fixed cylinder 801, the other end of the second spring 802 is fixedly connected to the copper needle 803, the copper needle 803 is connected to the terminal of the output PCB 8 through a conducting wire, the copper needle 803 is matched with the copper plate 7, the output PCB 8 is electrically connected to the output port 107, when the output PCB 8 rotates 90 degrees, the copper needle 803 moves to the position of the clamping groove of the copper plate 7, the copper needle 803 is ejected through the second spring 802, the copper needle 803 extends into the clamping groove formed in the copper plate 7, the contact area between the copper needle 803 and the copper plate 7 is increased, the transmission effect is improved, the copper needle 803 and the copper plate 7 are limited at the same time, when the copper needle is worn, still can contact with copper 7 line all the time under the effect of second spring 802, increase life, reduce the later maintenance cost.

The fixing frame 104 and the fixing cylinder 801 are made of insulating materials, so that damage to internal elements due to short circuit is avoided.

The outer wall of the shell 1 is provided with an indicator light 10, the input PCB 106 is provided with 4-8 groups of input ports 9, the input ports 9 are electrically connected with the copper plate 7, the outer wall of the shell 1 is provided with a heat dissipation net matched with heat dissipation holes, the heat dissipation net is matched with the heat dissipation fan 105, internal elements of the shell 1 can be cooled through the heat dissipation fan 105 and a heat dissipation groove, the transmission effect is prevented from being influenced by high temperature, and meanwhile, the internal elements are prevented from being damaged.

When output PCB board 8 is rotatory 90, copper needle 803 moves to copper 7 draw-in groove position, through second spring 802, copper needle 803 pops out, inside copper needle 803 deepened the draw-in groove that copper 7 was seted up, increase the area of contact of copper needle 803 and copper 7, transmission effect has been promoted, it is spacing to carry out copper needle 803 and copper 7 simultaneously, after copper needle 803 receives wearing and tearing, still can contact with copper 7 line all the time under the effect of second spring 802, service life has been increased, the later maintenance cost has been reduced, pilot lamp 10 can show selected output mode, be convenient for more audio-visual understanding output mode, can dispel the heat to casing 1 inner member through heat dissipation fan 105 and radiating groove, avoid influencing transmission effect because of high temperature, avoid inner member to cause the damage simultaneously.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.