CN209692324U - A kind of quick-speed plug terminal box - Google Patents

Abstract

The utility model discloses a kind of quick-speed plug terminal boxes, including box body, and mounting hole is equipped on the front side wall of the box body；First baffle and second baffle are respectively equipped on the outside of the mounting hole；It is equipped with several first positioning holes on the lower part plate body of the first baffle, several second location holes are equipped on the top plate body of the second baffle；The first positioning hole is matched with second location hole constitutes cable connector fixation hole；Guide rail is equipped in the inside of the box body.Quick-speed plug terminal box described in the utility model, cable can be quickly connected, the quick-speed plug to realize cable and terminal is closed by the open and close of baffle, great convenience is brought to live rapid construction, it also can fast operating without professional person, personnel's wrong route scaling loss element is avoided, debugging cost and time are saved.

Description

A kind of quick-speed plug terminal box

Technical field

The utility model relates to technical field of electrical equipment more particularly to a kind of quick-speed plug terminal boxes.

Background technique

Terminal box is indispensable device during a kind of cable construction.Existing terminal box exists centainly in use Deficiency:

(1) in use, aperture first must be carried out in the side of terminal box, the size and cable according to the outside diameter of cable are needed The size of connector carries out different aperture operations, and manipulation is complicated, and needs professional tool.

(2) cable can only be passed through to cable connector, then be fixed on connecting terminal, quick-speed plug can not be carried out, can only be leaned on It manually tears open and fills in order in order, spend human and material resources, and need professional and tool.

(3) cable needs user to process at the scene, completes threading and connection terminal, expends working hour, and be easy to appear Failure causes route to burn.

Utility model content

In order to make up for the deficiencies of the prior art, the utility model provides a kind of quick-speed plug terminal box, can be to cable It is quickly connected, closes the quick-speed plug to realize cable and terminal by the open and close of baffle, brought to live rapid construction Great convenience, without professional person also can fast operating, avoid personnel's wrong route scaling loss element, save debugging cost and when Between, to solve problems of the prior art.

The utility model is achieved by the following technical solution:

A kind of quick-speed plug terminal box, including box body are equipped with mounting hole on the front side wall of the box body；In the peace Dress is respectively equipped with first baffle and second baffle on the outside of hole；It is fixed that several first are equipped on the lower part plate body of the first baffle Position hole, is equipped with several second location holes on the top plate body of the second baffle；The first positioning hole and second location hole Position it is corresponding with the position of mounting hole；The first positioning hole is symmetric with second location hole, and described first is fixed Position hole is matched with second location hole constitutes cable connector fixation hole；Guide rail is equipped in the inside of the box body.

With advanced optimizing, the cross sectional shape of the first positioning hole and second location hole is semicircle.

Ground is advanced optimized, several first connecting holes, first connecting hole are equipped on the front side wall of the box body For threaded hole；Several second connecting holes are equipped on the first baffle and second baffle, second connecting hole is through-hole Or threaded hole；The position of first connecting hole is corresponding with the position of the second connecting hole；On the front side wall of the box body If the bolt passes through the first connecting hole and the second connecting hole equipped with bolt stem.

Ground is advanced optimized, is equipped with several quick-speed plug connecting terminals in the inside of the box body, the quick-speed plug connects Line terminals include pedestal, are respectively equipped with the first detent item and the second detent item, the first detent item in the lower part of the pedestal Composition mounting groove is matched with the second detent item, the shape of the mounting groove and the shape of guide rail are corresponding；The pedestal passes through Mounting groove is movably arranged on guide rail.

Ground is advanced optimized, the quick-speed plug connecting terminal further includes sheet metal, and the sheet metal is located at the pedestal Interior, the pedestal includes plug connecting cavity, conducting wire lock chamber and accommodating chamber, and correspondingly, one end of the sheet metal is plug company End is connect, the other end of the sheet metal is wire connecting ends, and the plug connecting pin is located in the plug connecting cavity, described to lead Line connecting pin is located in the conducting wire lock chamber, and the plug connecting pin extends in the accommodating chamber and connect with the conducting wire End connection, the front end of the plug connecting pin are equipped with the protrusion with mate；

Even formula spring, one end of described time company's formula spring and the wire connecting ends are additionally provided with back in the conducting wire lock chamber The other end of connection, described time company's formula spring is equipped with through-hole, and the wire connecting ends are located in the through-hole, and the pedestal is also set There are the connection jaws for alloing conducting wire to enter through-hole, the position of the connection jaws is corresponding with the position of the through-hole, the wiring The side of mouth is equipped with screwdriver entrance, and the screwdriver entrance is located at the top of the company's of going back to formula spring.

Ground is advanced optimized, the socket connection dress to connect other quick-speed plug connecting terminals is additionally provided on the pedestal It sets；The unitor includes several limited blocks on the pedestal, the another side of the pedestal be equipped with it is described The groove of the identical quantity of limited block, the limited block match with the groove, pass through between two quick-speed plug connecting terminals The limited block and the groove snap connection；The unitor further includes the sliding rail on the pedestal, described The another side of pedestal be equipped with the matched sliding slot of the sliding rail, pass through the sliding rail between two neighboring quick-speed plug connecting terminal With the sliding slot mobile connection.

Ground is advanced optimized, the cross sectional shape of the protrusion is parallelogram or ellipse.

Ground is advanced optimized, is equipped with several connection plugs in the inside of the box body；The connection plug sets sky in including The shape of the shell of chamber, the shell is corresponding with the shape of plug connecting cavity, and the shell is movably arranged on plug connecting cavity Inside；The housing forward end is equipped with terminal insertion ports, and the housing rear end is equipped with cable insert port, close terminal in the cavity Slot side be equipped with two panels be symmetrical arranged and between it can clamping terminal retaining tab, the retaining tab far from terminal insert Mouthful one end Electricity Federation have can crimping cable conducting wire wiring part；It is successively set along retaining tab described in housing forward end to rear extreme direction two panels It is set to the linkage section that guide section, its spacing that its spacing is gradually shortened first increase the accommodating section shortened afterwards, Electricity Federation contact chip.

Ground is advanced optimized, constitutes receiving area between the accommodating section of retaining tab described in two panels, the receiving area is parallel Quadrangle or ellipse.

Ground is advanced optimized, the cavity is interior and is fixed with dielectric support block, the insulating supporting positioned at wiring part side Elastic piece is wound on block, the elastic piece head end is connected between dielectric support block and wiring part, and the elastic piece end is provided with Cable card hole and its around dielectric support block be bent counterclockwise after form cable clamping portion, and cable card hole face cable insert port, The dielectric support block is equipped with handle hole with shell integrated molding, the housing rear end and positioned at cable insert port side, described Handle hole face elastic piece.

The beneficial effects of the utility model are:

Quick-speed plug terminal box described in the utility model, can be quickly connected cable, by baffle open and It is closed the quick-speed plug to realize cable and terminal, brings great convenience to live rapid construction, it also can be fast without professional person Speed operation, avoids personnel's wrong route scaling loss element, saves debugging cost and time, is suitable for wide popularization and application.

Detailed description of the invention

Fig. 1 is the superstructure schematic diagram of box body in the utility model.

Fig. 2 is the structural schematic diagram that box body is in disassembly status in the utility model.

Fig. 3 is the side perspective structural schematic diagram of quick-speed plug connecting terminal in the utility model.

Fig. 4 is the external structure schematic diagram of quick-speed plug connecting terminal in the utility model.

Fig. 5 is the overlooking structure diagram of the company's of returning formula spring in the utility model.

Fig. 6 is the side perspective structural schematic diagram of connection plug in the utility model.

Fig. 7 is the structural schematic diagram of elastic piece in the utility model.

In figure, 1, box body；11, mounting hole；12, first baffle；13, second baffle；14, first positioning hole；15, second is fixed Position hole；16, cable connector fixation hole；17, guide rail；

2, the first connecting hole；21, the second connecting hole；22, bolt；23, quick-speed plug connecting terminal；

3, pedestal；311, the first detent item；312, the second detent item；313, mounting groove；31, plug connecting cavity；32, conducting wire Lock chamber；33, accommodating chamber；34, the company's of returning formula spring；341, through-hole；35, connection jaws；36, screwdriver entrance；37, limited block；38, Groove；39, sliding rail；310, sliding slot；

4, sheet metal；41, plug connecting pin；42, wire connecting ends；411, raised；5, unitor；

6, connection plug；61, shell；62, cavity；63, terminal insertion ports；64, cable insert port；65, retaining tab；66, Wiring part；651, guide section；652, accommodating section；653, linkage section；654, receiving area；68, dielectric support block；69, elastic piece； 691, cable card hole；692, cable clamping portion；7, handle hole.

Specific embodiment

In order to clarify the technical characteristics of the invention, below by specific embodiment, and its attached drawing is combined, to this reality It is described in detail with novel.

As shown in Fig. 1-Fig. 7, present embodiment discloses a kind of quick-speed plug terminal boxes, including box body 1, in the box body 1 Front side wall be equipped with mounting hole 11；First baffle 12 and second baffle 13 are respectively equipped in the outside of the mounting hole 11； Several first positioning holes 14 are equipped on the lower part plate body of the first baffle 12, on the top plate body of the second baffle 13 Equipped with several second location holes 15；The position of the first positioning hole 14 and second location hole 15 is opposite with the position of mounting hole 11 It answers；The first positioning hole 14 is symmetric with second location hole 15, and the first positioning hole 14 and second location hole 15 It matches and constitutes cable connector fixation hole 16, for carrying out installation fixation to cable connector.It is equipped with and leads in the inside of the box body 1 Rail 17.It, only need to will be electric by first baffle 12 and second baffle 13 without carrying out punch operation on box body 1 when cable is installed Cable joint is fixed, and then penetrates cable in box body 1 by cable connector；It, can be by cable connector one when dismantling cable Disassembly is played, first baffle 12 and second baffle 13 need to only be removed, cable and cable connector can be moved together, avoid dismantling The work of rewiring is needed afterwards.

As a preferred embodiment, the cross sectional shape of the first positioning hole 14 and second location hole 15 is half Circle, convenient for installation is fixed to cable connector.

As a preferred embodiment, being equipped with several first connecting holes 2, institute on the front side wall of the box body 1 Stating the first connecting hole 2 is threaded hole；Several second connecting holes 21, institute are equipped on the first baffle 12 and second baffle 13 Stating the second connecting hole 21 is through-hole or threaded hole；The position of first connecting hole 2 is corresponding with the position of the second connecting hole 21； If being equipped with bolt stem 22 (as shown in Figure 2) on the front side wall of the box body 1, the bolt 22 passes through 2 He of the first connecting hole Second connecting hole 21.First baffle 12 and second baffle 13 are mounted and dismounted by bolt 22, it is relatively simple.

As a preferred embodiment, being equipped with several quick-speed plug connecting terminals 23, institute in the inside of the box body 1 Stating quick-speed plug connecting terminal 23 includes pedestal 3, is respectively equipped with the first detent item 311 and the second card in the lower part of the pedestal 3 Position item 312, the first detent item 311 is matched with the second detent item 312 constitutes mounting groove 313, the shape of the mounting groove 313 Shape is corresponding with the shape of guide rail 17；The pedestal 3 is movably arranged on guide rail 17 by mounting groove 313.By pedestal 3 along Guide rail 17 is mobile, multiple quick-speed plug connecting terminals 23 can be combined use, carry out a certain number of peaces as needed Dress, plays the role of modular construction.

As a preferred embodiment, the quick-speed plug connecting terminal 23 further includes sheet metal 4, the sheet metal 4 are located in the pedestal 3, and the pedestal 3 includes plug connecting cavity 31, conducting wire lock chamber 32 and accommodating chamber 33, correspondingly, described One end of sheet metal 4 is plug connecting pin 41, and the other end of the sheet metal 4 is wire connecting ends 42, the plug connecting pin 41 are located in the plug connecting cavity 31, and the wire connecting ends 42 are located in the conducting wire lock chamber 32, the plug connection End 41 extends in the accommodating chamber 33 and connect with the wire connecting ends 42, the front end of the plug connecting pin 41 equipped with The protrusion 411 of mate；

Even formula spring 34, one end of described time company's formula spring 34 and the conducting wire are additionally provided with back in the conducting wire lock chamber 32 Connecting pin 42 connects, and the other end of described time company's formula spring 34 is equipped with through-hole 341, and the wire connecting ends 42 are located at the through-hole In 341, the pedestal 3 is additionally provided with the connection jaws 35 for alloing conducting wire to enter through-hole, and the position of the connection jaws 35 leads to described The position in hole 341 is corresponding, and the side of the connection jaws 35 is equipped with screwdriver entrance 36, and the screwdriver entrance 36 is located at described The top of the company's of returning formula spring 34.When needing fixed conducting wire, screwdriver is entered into conducting wire lock chamber 32 by screwdriver entrance 36, Screwdriver resists back even formula spring 34, only has wire connecting ends 42 to pass through at this time in the through-hole 341 of the company's of returning formula spring 34, screwdriver Trim locations resist back even formula spring 34 and make the position of through-hole 341 mobile, and conducting wire is allowed to enter in through-hole 341 from connection jaws 35, Screwdriver is withdrawn from out of screwdriver entrance 36, is made in through-hole 341 by 341 connecting lead wire connecting pin 42 of through-hole and conducting wire at this time Wire connecting ends 42 and conducting wire locking, at this time plug by plug connecting cavity 31 connect socket, the protrusion of plug connecting pin 41 411 can block the position of plug, and plug is made to be not easy to generate loosening with socket.

As a preferred embodiment, being additionally provided on the pedestal 3 to connect other quick-speed plug connecting terminals Unitor 5；The unitor 5 includes several limited blocks 37 on the pedestal 3, the pedestal 3 Another side be equipped with the groove 38 of quantity identical as the limited block 37, the limited block 37 matches with the groove 38, two It is snapped connection between a quick-speed plug connecting terminal by the limited block 37 and the groove 38.Quick-speed plug connecting terminal 23 Pedestal 3 be equipped with the structure that can connect with adjacent outlet, by snapping connection between limited block 37 and groove 38, limited block 37 Quantity can be 2 or more, the quantity of groove 38 and the quantity of limited block are identical, can guarantee quick-speed plug terminals in this way The fastness that connects between son 23, and being also very easy to when splitting gently can be such that two sockets are separated from each other once breaking. Being fixed to each other between quick-speed plug connecting terminal 23 may be implemented to fix with the position for organizing inside conductor, according to every group of number of conductors Difference, can voluntarily snap connection the quick-speed plug connecting terminal 23 of different number, guarantee all conducting wires in every group all by Quick-speed plug connecting terminal 23 is fastened togather, and is not necessarily to design customization particular manufacturing craft, and quick-speed plug connecting terminal 23 is fixed It is easy to disassemble.

The unitor 5 further includes the sliding rail 39 on the pedestal 3, and the another side of the pedestal 3 is equipped with With the matched sliding slot 310 of the sliding rail 39, by the sliding rail 39 and described between two neighboring quick-speed plug connecting terminal 23 310 mobile connection of sliding slot.Between two quick-speed plug connecting terminals 23, the cunning of a quick-speed plug connecting terminal 23 can be passed through The sliding slot 110 of another quick-speed plug connecting terminal 23 of 19 mobile connection of rail, a conducting wire connect a socket and carry out connection circuit, The quick-speed plug connecting terminal 23 of different number is fixed according to the quantity of every group of conducting wire in this way, such mobile connection quickly pulls out All lead locations in same group can be fixed together by grafting line terminals 23, but also be able to achieve each wire and be respectively communicated with Circuit, in this way without the mold for customizing variety classes and quantity, there are no the expenses that need to pay custom mold great number, reduce production Cost, and without the quantity and every group of number of conductors of manual confirmation group before equipment equipment, the labour for alleviating worker is negative Load, improves procurement efficiency, design is scientific and reasonable, has saved the time.

As a preferred embodiment, raised 411 cross sectional shape is parallelogram or ellipse.It can So that it is more smooth when plug enters, and parallelogram or ellipse itself have certain width, after plug entrance, if The vibration that standby work generates will not make plug loosen or fall off, and guarantee the smooth of equipment operation, reduce the maintenance frequency, improve Working efficiency.

As a preferred embodiment, being equipped with several connection plugs 6 in the inside of the box body 1；The wiring is inserted First 6 include the interior shell 61 for setting cavity 62, and the shape of the shell 61 is corresponding with the shape of plug connecting cavity 31, the shell 61 are movably arranged on the inside of plug connecting cavity 31, are convenient for being rapidly assembled and disassembled.61 front end of shell is equipped with terminal Socket 63,61 rear end of shell are equipped with cable insert port 64, and close 63 side of terminal insertion ports is equipped with two in the cavity 62 Piece be symmetrical arranged and between it can clamping terminal retaining tab 65, the retaining tab 65 is far from 63 one end Electricity Federation of terminal insertion ports Have can crimping cable conducting wire wiring part 66.Terminal inserts into cavity 62 from terminal insertion ports 63, is stuck in two panels retaining tab Between 65, cable is stuck in wiring part 66 from cable insert port 64, can both complete to be electrically connected.

It sets gradually along retaining tab 65 described in 61 front end of shell to rear extreme direction two panels and is led for what its spacing was gradually shortened First increase the linkage section 653 of the accommodating section 652, Electricity Federation contact chip that shorten afterwards to section 651, its spacing.The retaining tab 65 can With the broadening terminal in end.

As a preferred embodiment, constituting receiving area between the accommodating section 652 of retaining tab 65 described in two panels 654, the receiving area 654 be parallelogram or ellipse, with protrusion 411 shape it is corresponding, convenient for being connect to quick-speed plug Line terminals 23 and connection plug 6 are quickly mounted and dismounted.Plug dynamics is smaller during plug, it is not easy to grind Damage terminal.

As a preferred embodiment, being fixed with dielectric support block in the cavity 62 and positioned at 66 side of wiring part 68, elastic piece 69 is wound in the dielectric support block 68, and 69 head end of elastic piece is connected to dielectric support block 68 and wiring part Between 66,69 end of elastic piece is provided with cable card hole 691 and it forms cable after dielectric support block 68 counterclockwise bending Clamping portion 692, and 691 face cable insert port 64 of cable card hole, the dielectric support block 68 is integrally formed with shell 61, described 61 rear end of shell and be located at 64 side of cable insert port be equipped with handle hole 7, the 7 face elastic piece 69 of handle hole.It needs to crimp When cable, elastic piece 69 can be firmly withstood, deformation occurs for elastic piece 69, strain relief clamp directly using in screw rod insertion operation hole 7 691 face cable insert port 64 of hole after being inserted into cable, unclamps screw rod, elastic piece 69 is due to elastical retraction, 691 meeting of cable card hole It is close to the retraction of dielectric support block 68, and then blocks cable.

To sum up, quick-speed plug terminal box described in the utility model, can be quickly connected cable, pass through baffle The quick-speed plug to realize cable and terminal is closed in open and close, brings great convenience to live rapid construction, is not necessarily to professional person Energy fast operating, avoids personnel's wrong route scaling loss element, saves debugging cost and time.

Place is not described in detail for the utility model, is the well-known technique of those skilled in the art of the present technique.Finally, it is stated that with Upper embodiment is merely intended for describing the technical solutions of the present application, but not for limiting the present application, although referring to preferred embodiment to the utility model It is described in detail, those skilled in the art should understand that, the technical solution of the utility model can be repaired Change or equivalent replacement should all cover without departing from the objective and range of technical solutions of the utility model in the utility model Scope of the claims in.

Claims (10)

1. a kind of quick-speed plug terminal box, including box body (1), it is characterised in that: be equipped on the front side wall of the box body (1) Mounting hole (11)；First baffle (12) and second baffle (13) are respectively equipped on the outside of the mounting hole (11)；Described The lower part plate body of one baffle (12) is equipped with several first positioning holes (14), sets on the top plate body of the second baffle (13) There are several second location holes (15)；The position of the position of the first positioning hole (14) and second location hole (15) and mounting hole (11) It sets corresponding；The first positioning hole (14) is symmetric with second location hole (15), and the first positioning hole (14) with Second location hole (15), which matches, constitutes cable connector fixation hole (16)；Guide rail (17) are equipped in the inside of the box body (1).

2. quick-speed plug terminal box according to claim 1, it is characterised in that: the first positioning hole (14) and second is determined The cross sectional shape in position hole (15) is semicircle.

3. quick-speed plug terminal box according to claim 1, it is characterised in that: on the front side wall of the box body (1) Equipped with several first connecting holes (2), first connecting hole (2) is threaded hole；In the first baffle (12) and second baffle (13) several second connecting holes (21) are equipped on, second connecting hole (21) is through-hole or threaded hole；First connection The position in hole (2) is corresponding with the position of the second connecting hole (21)；In the box body (1) if front side wall on be equipped with bolt stem (22), the bolt (22) passes through the first connecting hole (2) and the second connecting hole (21).

4. quick-speed plug terminal box according to any one of claim 1-3, it is characterised in that: in the box body (1) Inside is equipped with several quick-speed plug connecting terminals (23), and the quick-speed plug connecting terminal (23) includes pedestal (3), in the base The lower part of seat (3) is respectively equipped with the first detent item (311) and the second detent item (312), the first detent item (311) and second Detent item (312), which matches, constitutes mounting groove (313), and the shape of the mounting groove (313) is corresponding with the shape of guide rail (17)； The pedestal (3) is movably arranged on guide rail (17) by mounting groove (313).

5. quick-speed plug terminal box according to claim 4, it is characterised in that: the quick-speed plug connecting terminal (23) is also Including sheet metal (4), the sheet metal (4) is located in the pedestal (3), and the pedestal (3) includes plug connecting cavity (31), leads Line lock chamber (32) and accommodating chamber (33), correspondingly, one end of the sheet metal (4) are plug connecting pin (41), the metal The other end of piece (4) is wire connecting ends (42), and the plug connecting pin (41) is located in the plug connecting cavity (31), described Wire connecting ends (42) are located in the conducting wire lock chamber (32), and the plug connecting pin (41) extends to the accommodating chamber (33) Interior and connect with the wire connecting ends (42), the front end of the plug connecting pin (41) is equipped with the protrusion with mate (411)；

It is additionally provided with back in the conducting wire lock chamber (32) even formula spring (34), one end of described time company's formula spring (34) is led with described The other end of line connecting pin (42) connection, described time company's formula spring (34) is equipped with through-hole (341), wire connecting ends (42) position In the through-hole (341), the pedestal (3) is additionally provided with the connection jaws (35) for alloing conducting wire to enter through-hole, the connection jaws (35) position is corresponding with the position of the through-hole (341), and the side of the connection jaws (35) is equipped with screwdriver entrance (36), The screwdriver entrance (36) is located at the top of the company of going back to formula spring (34).

6. quick-speed plug terminal box according to claim 5, it is characterised in that: be additionally provided on the pedestal (3) to even Connect the unitor (5) of other quick-speed plug connecting terminals；The unitor (5) includes being located at the pedestal (3) several limited blocks (37) on, the another side of the pedestal (3) are equipped with the groove of quantity identical as the limited block (37) (38), the limited block (37) matches with the groove (38), passes through the limit between two quick-speed plug connecting terminals Block (37) and the groove (38) snap connection；The unitor (5) further includes the sliding rail on the pedestal (3) (39), the another side of the pedestal (3) is equipped with connects with the sliding rail (39) matched sliding slot (310), two neighboring quick-speed plug Pass through the sliding rail (39) and the sliding slot (310) mobile connection between line terminals (23).

7. quick-speed plug terminal box according to claim 5, it is characterised in that: it is described protrusion (411) cross sectional shape be Parallelogram or ellipse.

8. quick-speed plug terminal box according to claim 7, it is characterised in that: in the box body (1) if inside be equipped with Dry connection plug (6)；The connection plug (6) includes the interior shell (61) for setting cavity (62), the shape of the shell (61) with The shape of plug connecting cavity (31) is corresponding, and the shell (61) is movably arranged on the inside of plug connecting cavity (31)；The shell Body (61) front end is equipped with terminal insertion ports (63), and shell (61) rear end is equipped with cable insert port (64), in the cavity (62) Close to terminal insertion ports (63) side be equipped with two panels be symmetrical arranged and between it can clamping terminal retaining tab (65), the folder Hold tongue piece (65) far from terminal insertion ports (63) one end Electricity Federation have can crimping cable conducting wire wiring part (66)；Along shell (61) front end It is first that guide section (651), its spacing being gradually shortened for its spacing are set gradually to retaining tab (65) described in rear extreme direction two panels The linkage section (653) of the accommodating section (652), Electricity Federation contact chip that shorten after increase.

9. quick-speed plug terminal box according to claim 8, it is characterised in that: the receiving of retaining tab described in two panels (65) Receiving area (654) are constituted between section (652), the receiving area (654) is parallelogram or ellipse.

10. quick-speed plug terminal box according to claim 8, it is characterised in that: in the cavity (62) and be located at wiring Part (66) side is fixed with dielectric support block (68), is wound with elastic piece (69), the elastic piece on the dielectric support block (68) (69) head end is connected between dielectric support block (68) and wiring part (66), and elastic piece (69) end is provided with cable card hole (691) and it forms cable clamping portion (692) after dielectric support block (68) counterclockwise bending, and cable card hole (691) face Cable insert port (64), the dielectric support block (68) is with shell (61) integrated molding, shell (61) rear end and positioned at electricity Cable insert port (64) side is equipped with handle hole (7), handle hole (7) the face elastic piece (69).