CN214625460U - Novel direct-insertion heavy-load connector - Google Patents

Abstract

A novel direct-insertion heavy-load connector comprises a connector main body, wherein the connector main body and a shell are arranged, the connector main body comprises an upper insertion core and a lower insertion core which are mutually inserted and matched, and a male plug-in unit and a female plug-in unit which are respectively arranged on the upper insertion core and the lower insertion core, elastic pieces are arranged on the male plug-in unit and the female plug-in unit, and the male plug-in unit and the female plug-in unit are respectively fixed on the upper insertion core and the lower insertion core through a cover plate; the cover plate is provided with a plurality of key holes and wire insertion holes, keys are arranged in the key holes in a sliding mode, and the elastic sheets can be jacked open when the keys are pressed, so that the wires can be controlled to be inserted and pulled out; the shell comprises an upper shell and a lower shell which are fixedly installed with the upper insertion core and the lower insertion core respectively, and the upper shell is provided with a waterproof joint for a lead to pass through. The utility model discloses can realize direct plug wire, simple convenient, sealing performance is good moreover, easy dismounting tests the signal of telecommunication on the heavy load connector easily.

Description

Novel direct-insertion heavy-load connector

Technical Field

The utility model relates to a heavy load connector especially relates to a novel formula heavy load connector cut straightly.

Background

Heavy load connector, also known as heavy load connector, aviation are inserted, and the wide application is in the equipment that needs carry out electricity and signal connection such as construction machinery, robot, electric power, automation, for traditional connected mode, uses heavy load connector to have and installs in advance, and wiring in advance prevents to miss and inserts, improves advantages such as work efficiency. The prior art has the following disadvantages: 1. the wire plugging of the connector needs to adopt a tool, the dismounting of the wire connected with the heavy-duty connector needs to firstly dismount the female pin and the male pin from the core body, and the wire is fixed on the female pin and the male pin by using a special tool, so the operation difficulty is high, and the requirement on the tool is high; 2. the connector wiring operation is complicated, and the steps of screwing out screws, inserting the wires and screwing down the screws are required; 3. the heavy-load connector structure placed in the sealing structure is difficult to test electric signals of the lead wires led out to the female pin and the male pin.

SUMMERY OF THE UTILITY MODEL

The utility model discloses solve the problem that above-mentioned prior art exists, provide a novel formula heavy load connector cut straightly, can realize direct plug wire, simple convenient, the signal of telecommunication on the convenient test heavy load connector moreover.

The utility model provides a technical scheme that its technical problem adopted: a novel direct-insertion heavy-load connector comprises a connector main body, wherein the connector main body and a shell are arranged, the connector main body comprises an upper insertion core and a lower insertion core which are mutually inserted and matched, and a male plug-in unit and a female plug-in unit which are respectively arranged on the upper insertion core and the lower insertion core, the male plug-in unit and the female plug-in unit are inserted and matched to realize electrical connection, elastic pieces are arranged on the male plug-in unit and the female plug-in unit, one ends of the elastic pieces are fixed ends, the other ends of the elastic pieces are free ends capable of elastically deforming under stress, external wires can be fixed on the male plug-in unit and the female plug-in unit through the elastic pieces, and the male plug-in unit and the female plug-in unit are respectively fixed on the upper insertion core and the lower insertion core through a cover plate; the cover plate is provided with a plurality of key holes and wire insertion holes, keys are arranged in the key holes in a sliding mode, the inner ends of the keys are in contact with the free ends of the elastic sheets, and wires are inserted into the wire insertion holes to be in electrical contact with the male plug-in units or the female plug-in units; the elastic sheet can be pushed open when the key is pressed, so that the insertion and the extraction of the lead are controlled; the shell is including difference fixed mounting go up the epitheca and the inferior valve of lock pin and lower lock pin, be equipped with the water joint that supplies the wire to pass through on the epitheca, carry out sealed fixed connection through the detachable hasp between epitheca and the inferior valve, seal structure can open through the hasp, conveniently tests the signal of telecommunication on the heavy load connector, be equipped with the waterproof interface that supplies the wire to pass through on the inferior valve for fix on equipment.

For further improvement, the waterproof joint comprises a wire inlet hole arranged at the top of the upper shell and a waterproof threaded sleeve in threaded connection with the wire inlet hole.

The lock catch comprises two fasteners which are arranged in bilateral symmetry, the fasteners are rotationally connected with the lower shell, limiting barbs are arranged at two ends of the fasteners, and the limiting barbs are in buckle connection with lock posts arranged on the side wall of the upper shell; the fastener is characterized in that the inner side edge of the limiting barb is provided with a thickening raised line, the fastener is provided with a trigger, and the trigger is provided with friction lines.

Further perfecting, a first sealing washer is arranged between the upper shell and the lower shell; the waterproof interface comprises an opening and a flange fixing plate which are arranged at the bottom of the lower shell, and a second sealing gasket is installed at the bottom of the flange fixing plate.

The connector comprises a side supporting plate, the bottom of the side supporting plate is fixedly connected with the male plug or the female plug, a first baffle and a second baffle are respectively arranged on the left side and the right side of the side supporting plate, a third baffle and a fourth baffle are respectively arranged on the upper portion and the lower portion of the side supporting plate, a spring piece clamping groove is formed between the first baffle and the third baffle, a spring piece moving area is formed between the second baffle and the fourth baffle, the spring piece moving area is communicated with a key hole and a wire jack, a first fixing groove, a second fixing groove and a wire jack are formed in the bottom surface of the plug-in groove, The first fixing groove, the second fixing groove, the third fixing groove and the fourth fixing groove are respectively connected with the lower ends of the fourth baffle, the side supporting plates, the second baffle and the first baffle in a clamping mode.

Further perfection, the shell fragment from left to right bends the shaping in proper order and has bottom portion, orthoscopic portion, circular arc portion, flexion and contact site, bottom portion contacts with one side of fourth baffle, and bottom portion is located the shell fragment active area the orthoscopic portion upper end contacts with first baffle, third baffle upper end is equipped with the circular arc section to the crooked one side of shell fragment draw-in groove, and the circular arc section contacts with the circular arc portion inboard, the flexion contacts with the button lower extreme, and the contact site contacts with the second baffle.

Further perfect, the lower extreme of button is equipped with the side scarf, side scarf and flexion contact, the left and right sides of button is equipped with the recess slide, the key hole inner wall is equipped with bellied guide rail strip, guide rail strip with recess slide sliding connection is located the left recess slide bottom of button and is equipped with the protrusion fender position, and the recess slide bottom that is located the button right side is equipped with the notch cuttype buckle, and the upper end of notch cuttype buckle is equipped with transverse baffle.

Further perfect, go up the lock pin and carry out fixed connection through setting up the first mortise-tenon structure on the medial surface and setting up the second mortise-tenon structure at both ends between the lock pin down, go up the lock pin and all have the grounding lug that is used for ground connection through second mortise-tenon structure fixed mounting at both ends about the lock pin down, four corners in epitheca and the inferior valve all is equipped with the fixed block, the grounding lug carries out bolt fixed connection with the fixed block.

Further perfection, the cover plate is provided with a test hole. A plurality of strip-shaped bulges are arranged on the inner wall of the wire jack at intervals.

The utility model discloses profitable effect is:

1. in the prior art, the wire plugging of the connector needs to adopt tools, the wire connection operation is complicated, and the operation of 'screwing out a screw, plugging a wire and screwing down the screw' is divided into steps; the female plug-in unit and the male plug-in unit of the heavy-duty connector are provided with the elastic pieces, the insertion and the extraction of the wires can be controlled by pushing the elastic pieces open by the keys, the clamping force of the elastic pieces is increased along with the increase of the sectional area of the wires, the direct wire insertion can be realized under the condition of no tool, and the heavy-duty connector is simple and convenient;

3. the grounding piece is arranged on the insertion core of the utility model, which can effectively lead out the leakage and the static electricity and realize the grounding;

4. the utility model is provided with the waterproof joint, and can realize a plurality of wire-in directions such as 'ejecting, side-out, ejecting + side-out', and the like, and can be selected according to requirements;

5. the cover plate of the utility model is provided with a plurality of test holes, key holes and wire jacks, and various specifications such as '6/10/16/24/32/48' can be used and can be selected as required; whether the power is normally conducted or not can be measured through the position of the test hole, and the electric signal on the heavy-load connector can be conveniently tested;

5. the utility model discloses a be equipped with a plurality of contact points on the plug-in components, can cooperate with a plurality of fixed slots on the plug-in components groove of lock pin, realize firm location, pressing the wiring in-process, plug-in components can not take place not hard up and skew yet.

Drawings

FIG. 1 is an exploded view of the present invention;

fig. 2 is a bottom view of the present invention;

FIG. 3 is a cross-sectional view taken at A-A of FIG. 2;

FIG. 4 is a cross-sectional view of the male insert;

FIG. 5 is a cross-sectional view of the female insert;

FIG. 6 is a schematic structural view of a card slot;

FIG. 7 is a schematic structural view of a spring plate;

FIG. 8 is a diagram showing the combined structure of the plug-in, the spring plate and the key;

description of reference numerals: 1A, an upper plug core, 1B, a lower plug core, 1C, a first mortise and tenon structure, 1D, a second mortise and tenon structure, 1E, a grounding piece, 2A, a male plug, 2A1, a male plug, 2B, a female plug, 2B1, a female plug, C, a connector lug, C1, a side supporting plate, C2, a first baffle, C3, a second baffle, C4, a third baffle, C5, a fourth baffle, C6, a spring sheet clamping groove, C7, a spring sheet movable region, C8, an arc section, D, a plug groove, DA, a male plug hole, DB, a female plug hole, D1, a first fixing groove, D2, a second fixing groove, D3, a third fixing groove, D4, a fourth fixing groove, 3, a spring sheet, 31, a bottom end part, 32, a straight line part, 33, an arc part, 34, a bending part, 35, a contact part, 4, a cover plate, a key hole 41, a lead hole, a test hole, a key hole, a lead hole, a test hole, a strip-shaped parts, a lead hole, a test hole, a convex part, a test hole, a test socket, a connector, a test socket, a connector, side chamfer, 52, recess slide, 53, protruding gear, 54, notch cuttype buckle, 55, horizontal baffle, 6, epitheca, 61, waterproof joint, 611, entrance hole, 612, waterproof swivel nut, 62, first seal ring, 7, inferior valve, 71, waterproof interface, 711, flange fixed plate, 712, second seal ring, 8, fastener, 81, spacing barb, 82, lock post, 83, thickening sand grip, 84, trigger, 85, spring hook.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings:

referring to figures 1-3: the novel direct-insertion heavy-load connector comprises a connector main body, the connector main body and a shell, the connector main body comprises an upper insertion core 1A and a lower insertion core 1B which are mutually inserted and matched, and a male plug-in unit 2A and a female plug-in unit 2B which are respectively arranged on the upper insertion core 1A and the lower insertion core 1B, the male plug-in unit 2A and the female plug-in unit 2B are inserted and matched to realize electrical connection, the metal plug-in units are integrally formed, and the connector main body has stronger damage resistance and is firmer, the male plug-in unit 2A and the female plug-in unit 2B are provided with spring pieces 3, one end of each spring piece 3 is a fixed end, the other end is a free end capable of elastically deforming under stress, the elastic sheet 3 can fix the external lead on the male plug-in unit 2A and the female plug-in unit 2B through self elasticity, the male plug-in unit 2A and the female plug-in unit 2B are respectively fixed on the upper insertion core 1A and the lower insertion core 1B through a cover plate 4; the cover plate 4 is provided with a plurality of key holes 41 and a plurality of wire jacks 42, the wire jacks 42 are internally provided with strip-shaped bulges 44, and the inner wall of each wire jack 42 is provided with three vertical strip-shaped bulges 44 at intervals on one side, so that the contact area of wire access is increased, the wire access is tighter, and the wire is not easy to fall off. A key 5 is arranged in the key hole 41 in a sliding manner, the inner end of the key 5 is contacted with the free end of the elastic sheet 3, and a wire is inserted into the wire insertion hole 42 to be electrically contacted with the male plug-in unit 2A or the female plug-in unit 2B; when the key 5 is pressed, the elastic sheet 3 can be pushed open, so that the insertion and the extraction of the conducting wire are controlled; when inserting the electric wire, the free end of shell fragment takes place deformation, and the skew has increased area of contact between electric wire, metal plug-in components and the shell fragment three, and when pressing the button and pulling out the electric wire simultaneously, the shell fragment is the skew equally, pulls out the electric wire laborsaving convenience more. The shell is including difference fixed mounting go up lock pin 1A and lock pin 1B's epitheca 6 and inferior valve 7 down, be equipped with the waterproof joint 61 that supplies the wire to pass through on the epitheca 6, carry out sealed fixed connection through the detachable hasp between epitheca 6 and the inferior valve 7, seal structure can be opened through the hasp, conveniently tests the signal of telecommunication on the heavy load connector, be equipped with the waterproof interface 71 that supplies the wire to pass through on inferior valve 7 for fix on equipment.

For further improvement, the waterproof connector 61 includes a wire inlet hole 611 arranged at the top of the upper shell 6 and a waterproof threaded sleeve 612 connected to the wire inlet hole 611 in a threaded manner, and the two are combined and connected through a thread design structure interaction, so as to form different wire outlet directions such as ejection, side outlet or ejection + side outlet, and the arrangement direction of the waterproof connector 61 can be selected according to specific requirements. The waterproof thread insert 612 is composed of a thread cover and a thread pipe, and wrench clamping positions are arranged on the thread cover and the thread pipe, so that the waterproof thread insert is convenient to disassemble and assemble.

Further perfect, the hasp includes two fasteners 8 that bilateral symmetry set up, is connected for rotating between fastener 8 and the inferior valve 7 to fix it on the metal rivet on surface through spring hook 85, bilateral symmetry makes it can use the fixed point as the center, does circumferential displacement, and spring hook 85 can maintain fastener 8's locking state, has the effect that elasticity resets, fastener 8's both ends are equipped with spacing barb 81, spacing barb 81 carries out the buckle with the lock post 82 that sets up at 6 lateral walls of epitheca and is connected, and the design of spacing barb 81 can prevent to take place to kick-back when locking, and is more laborsaving when making the hasp block out the lock post, and when locking completely simultaneously, the hasp also is difficult for droing.

Further perfect, the thickening sand grip 83 that the inboard edge of spacing barb 81 was provided with through carrying out the thickening design in hasp top one corner, makes it can not take place to warp when locking the post. The fastener 8 is provided with a trigger 84, and the trigger 84 is provided with friction grains, so that the contact friction force is increased, and the switch operation is more labor-saving.

For further improvement, a first sealing gasket 62 is arranged between the upper shell 6 and the lower shell 7; waterproof interface 71 is including setting up opening and the flange fixed plate 711 in inferior valve 7 bottom, second seal ring 712 is installed to flange fixed plate 711 bottom, and second seal ring 712 four corners position is opened has the aperture simultaneously, and is unanimous with the screw hole position at flange fixed plate 711 four corners, can install it on the plane to accomplish dustproof and waterproof's effect, increase the leakproofness, thereby make the connector reach professional grade.

Further perfection, as shown in fig. 4-5, the upper portions of the male plug 2A and the female plug 2B are connector terminals C with the same structure, the lower portions are respectively a male plug 2A1 with an inward closed end and a female plug 2B1 with an outward opened end, the surfaces of the upper plug core 1A and the lower plug core 1B are provided with a plurality of plug grooves D, the bottoms of the plug grooves D on the upper and lower sides are respectively provided with a male plug hole DA and a female plug hole DB which are in plug-in fit with the male plug 2A1 and the female plug 2B1, the male plug 2A1 at the end of the male plug 2A is closed inward, and is combined with the plastic upper plug core 1A through the male plug hole DA, and the male plug hole DA is designed with a small slope with a large outer ring and a small inner ring, so that the male plug 2A1 can be inserted more accurately; the female plug 2B1 at the tail end of the female plug 2B is unfolded outwards and combined with the plastic lower ferrule 1B through the female plug hole DB, and the inner ring of the female plug hole DB is provided with a raised fixing point design which is matched with the strip-shaped opening of the female plug 2B1, so that the female plug 2B is fixed in the plastic lower ferrule 1B. The connector C comprises a side supporting plate C1, the bottom of the side supporting plate C1 is fixedly connected with the male plug 2A1 or the female plug 2B1, a first baffle C2 and a second baffle C3 are respectively arranged at the left side and the right side of the side supporting plate C1, a third baffle C4 and a fourth baffle C5 are respectively arranged at the upper part and the lower part of the middle part of the side supporting plate C1, a spring plate clamping groove C6 is arranged between the first baffle plate C2 and the third baffle plate C4, a spring plate active area C7 is arranged between the second baffle plate C3 and the fourth baffle plate C5, the spring plate active area C7 is communicated with the key hole 41 and the lead wire insertion hole 42, as shown in fig. 6, a first fixing groove D1, a second fixing groove D2, a third fixing groove D3 and a fourth fixing groove D4 are formed in the bottom surface of the card slot D, and the first fixing groove D1, the second fixing groove D2, the third fixing groove D3 and the fourth fixing groove D4 are respectively engaged with the lower ends of the fourth baffle C5, the side supporting plate C1, the second baffle C3 and the first baffle C2. Go up through setting up first mortise-tenon joint structure 1C on the medial surface and setting up the second mortise-tenon joint structure 1D at both ends between lock pin 1A and lower lock pin 1B and carry out fixed connection, all there is ground connection piece 1E that is used for ground connection at both ends through second mortise-tenon joint structure 1D fixed mounting about going up lock pin 1A and lower lock pin 1B, the four corners in epitheca 6 and inferior valve 7 all is equipped with the fixed block, ground connection piece 1E carries out bolt fixed connection with the fixed block. After the metal pieces (the male plug-in component 2A and the female plug-in component 2B) are arranged in the plastic piece (the upper inserting core 1A and the lower inserting core 1B), the shape of the connector lug C of the metal pieces is matched with each fixing groove in the part D of the plug-in component groove, and the metal pieces are fixed in the plastic piece. Meanwhile, the upper plastic part and the lower plastic part are assembled together through the mortise and tenon structure (the male plug-in hole DA, the female plug-in hole DB, the first mortise and tenon structure 1C and the second mortise and tenon structure 1D), so that the male plug-in component 2A is plugged into the female plug-in component 2B, and current transmission is completed. And meanwhile, the grounding piece 1E is also arranged to connect the upper and lower insertion cores so as to realize grounding. The strip-shaped protrusions 44 are arranged opposite to the side supporting plates C1 and located in the elastic sheet moving area C7, and the strip-shaped protrusions and the side supporting plates are matched with each other, so that the contact area of the wires is increased, the wires are connected more closely, and the wires are not easy to fall off.

Further perfection, as shown in fig. 7-8, the spring plate adopts an irregular shape design, the spring plate 3 is sequentially bent from left to right to form a bottom end portion 31, a linear portion 32, an arc portion 33, a bending portion 34 and a contact portion 35, the bottom end portion 31 contacts with one side of a fourth baffle C5, the bottom end portion 31 is located in a spring plate moving area C7, the upper end of the linear portion 32 contacts with a first baffle C2, the upper end of a third baffle C4 is provided with an arc segment C8 bending towards one side of a spring plate clamping groove C6, the arc segment C8 contacts with the inner side of the arc portion 33, the bending portion 34 contacts with the lower end of the key 5, the contact portion 35 contacts with a second baffle C3, and the second baffle C3 is provided with a barb, so that the contact portion 35 can be limited, friction force on a lead is enhanced, and the lead is clamped more firmly and is not easy to break away. In the assembling and using process, the elastic sheet is in contact with a plurality of point positions on the metal plug-in unit, the elastic sheet can be fixed in the corresponding area of the metal plug-in unit due to the design, and the elastic sheet can not deviate in the wire pressing and connecting process.

The screwdriver is further improved, the top of the top end of the key is provided with the cross-shaped groove, the screwdriver can press the key from the transverse direction and the vertical direction, and meanwhile, the stress of the screwdriver and the key is increased. The lower end of the key 5 is provided with a side chamfer 51, and the side chamfer 51 is contacted with the bending part 34, so that the obstruction of the spring deformation is greatly reduced when the key is pressed. The left and right sides of button 5 is equipped with recess slide 52, the button 41 inner wall is equipped with bellied guide rail strip, guide rail strip with recess slide 52 sliding connection makes the button more laborsaving at the in-process of pressing, is located the left recess slide 52 bottom of button 5 and is equipped with the protrusion and keeps off position 53, can prevent that the button from falling out from pressing the button hole top, and recess slide 52 bottom that is located the button 5 right side is equipped with notch cuttype buckle 54, can with the button hole effect, reduce the resistance, and notch cuttype buckle 54's upper end is equipped with transverse baffle 55, can be blocked by the stair structure in the button hole after pressing to a certain degree, prevents that the button excessively moves down when pressing from leading to unable return.

Further perfection, as shown in fig. 2, the cover plate 4 is provided with a testing hole 43, the testing hole 43 is conducted to the elastic sheet and the metal plug-in, and whether the power is normally supplied can be measured through the position. The side of the insertion core is uniformly distributed with a row of fixing points, the shape and the size of the fixing points are consistent with those of the groove on the side of the cover plate, so that the cover plate is stressed uniformly and is fixed firmly.

The utility model discloses a theory of operation: the upper shell 6 is provided with a waterproof joint 61 for the lead to pass through, and can realize various wire-in directions such as 'ejection, side-out, ejection + side-out', and the like, and can be selected according to requirements, the cover plate 4 is provided with a plurality of test holes, key holes and lead jacks, and various specifications such as '6/10/16/24/32/48' can be used and can be selected according to requirements; the lead can be directly inserted into the lead inserting hole 42, enters the spring plate active area C7 and pushes the spring plate 3 open, at the moment, under the action of elasticity, the contact part 35 of the spring plate is matched with the second baffle C3 to clamp the lead, and meanwhile, the side supporting plate C1 and the strip-shaped protrusion 44 are contacted with the two sides of the lead, so that the contact area of the wire access is increased, the wire access is tighter and is not easy to fall off, and the lead 1 is fixed on the male plug-in unit 2A and the female plug-in unit 2B, so that the circuit conduction is realized; the external electric signal test probe can touch the elastic sheet 3 from the test hole 43 on the cover plate 4 and detect the electric signal led in by the lead; when the lead needs to be pulled out, the lead can be pulled out in a smooth manner by pressing the key 5 and pushing the elastic sheet 3 open, a detachable sealing shell is arranged outside the heavy-duty connector, and a first sealing washer 62 is arranged between the upper shell 6 and the lower shell 7; the waterproof interface 71 comprises an opening arranged at the bottom of the lower shell 7 and a flange fixing plate 711, a second sealing washer 712 is arranged at the bottom of the flange fixing plate 711, the second sealing washer can be installed on a plane and can achieve the functions of dust prevention and water prevention, the sealing performance is improved, so that the connector reaches the professional grade, the disassembly and the installation of a lock catch on the shell are convenient, the operation of testing an electric signal on a heavy-load connector is quicker, the connector can circumferentially move by taking a fixed point as the center by pulling fasteners 8 at two sides, the locking between the upper shell and the lower shell can be released, the upper inserting core 1A and the lower inserting core 1B are disassembled, all circuits are disconnected, the upper inserting core 1A and the lower inserting core 1B, the male inserting core 2A and the female inserting core 2B are mutually inserted and matched, after the upper shell and the lower shell are closed, a lock column of the upper shell can be clamped into a limiting barb 81 to realize firm assembly, and a spring hook 8 is arranged between the fasteners 8 and the lower shell 7, the locking state of the lock catch can be maintained and the lock catch is not easy to be shaken off.

While the invention has been shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the appended claims.

Claims (10)

1. The utility model provides a novel formula of cuting straightly heavily loaded connector, includes the connector main part, characterized by: the connector comprises a connector main body and a shell, wherein the connector main body comprises an upper insertion core (1A) and a lower insertion core (1B) which are mutually inserted and matched, and a male plug-in component (2A) and a female plug-in component (2B) which are respectively arranged on the upper insertion core (1A) and the lower insertion core (1B), the male plug-in component (2A) and the female plug-in component (2B) are inserted and matched to realize electric connection, spring pieces (3) are arranged on the male plug-in component (2A) and the female plug-in component (2B), one end of each spring piece (3) is a fixed end, the other end of each spring piece is a free end capable of being elastically deformed under stress, external leads can be fixed on the male plug-in component (2A) and the female plug-in component (2B) through self elasticity of each spring piece (3), and the male plug-in component (2A) and the female plug-in component (2B) are respectively fixed on the upper insertion core (1A) and the lower insertion core (1B) through a cover plate (4); the cover plate (4) is provided with a plurality of key holes (41) and wire insertion holes (42), the key (5) is arranged in the key holes (41) in a sliding mode, the inner end of the key (5) is in contact with the free end of the elastic sheet (3), and a wire is inserted into the wire insertion holes (42) to be in electrical contact with the male plug-in unit (2A) or the female plug-in unit (2B); when the key (5) is pressed, the elastic sheet (3) can be pushed open, so that the insertion and the extraction of the lead are controlled; the shell comprises an upper shell (6) and a lower shell (7) which are fixedly installed on the upper insertion core (1A) and the lower insertion core (1B) respectively, a waterproof joint (61) for a lead to pass through is arranged on the upper shell (6), the upper shell (6) and the lower shell (7) are fixedly connected in a sealing mode through a detachable lock catch, and a waterproof interface (71) for the lead to pass through is arranged on the lower shell (7).

2. The novel in-line heavy-duty connector of claim 1, wherein: the waterproof connector (61) comprises a wire inlet hole (611) formed in the top of the upper shell (6) and a waterproof threaded sleeve (612) connected to the wire inlet hole (611) in a threaded mode.

3. The novel in-line heavy-duty connector of claim 1, wherein: a first sealing washer (62) is arranged between the upper shell (6) and the lower shell (7); the hasp includes two fastener (8) that bilateral symmetry set up, is connected for rotating between fastener (8) and inferior valve (7), the both ends of fastener (8) are equipped with spacing barb (81), spacing barb (81) carry out the buckle with lock post (82) that set up at epitheca (6) lateral wall and are connected, the thickening sand grip (83) that the inboard edge of spacing barb (81) was provided with.

4. The novel in-line heavy-duty connector of claim 1, wherein: the waterproof interface (71) comprises an opening arranged at the bottom of the lower shell (7) and a flange fixing plate (711), and a second sealing gasket (712) is installed at the bottom of the flange fixing plate (711).

5. The novel in-line heavy-duty connector of claim 1, wherein: the upper parts of the male plug-in (2A) and the female plug-in (2B) are connector lugs (C) with the same structure, the lower parts of the male plug-in (2A) and the female plug-in (2B) are respectively a male plug (2A1) with the tail end folded inwards and a female plug (2B1) with the tail end unfolded outwards, a plurality of plug-in grooves (D) are arranged on the surfaces of the upper plug core (1A) and the lower plug core (1B), male plug-in holes (DA) and female plug-in holes (DB) which are in plug-in fit with the male plug (2A1) and the female plug (2B1) are respectively arranged at the bottoms of the plug-in grooves (D) on the upper side and the lower side, the connector lugs (C) comprise side supporting plates (C1) with the bottoms fixedly connected with the male plug (2A1) or the female plug (2B1), first baffles (C2) and second baffles (C3) are respectively arranged on the left side and the right side of the side supporting plates (C1), and the middle parts of the side supporting plates (C1) are respectively provided with a third baffle (C4) and a fourth baffle (C5), be shell fragment draw-in groove (C6) between first baffle (C2) and the third baffle (C4), be shell fragment active area (C7) between second baffle (C3) and the fourth baffle (C5), shell fragment active area (C7) is linked together with key hole (41) and wire jack (42), be equipped with first fixed slot (D1), second fixed slot (D2), third fixed slot (D3) and fourth fixed slot (D4) on the bottom surface of plug-in groove (D), first fixed slot (D1), second fixed slot (D2), third fixed slot (D3) and fourth fixed slot (D4) respectively with the lower extreme joint of fourth baffle (C5), collateral branch fagging (C1), second baffle (C3) and first baffle (C2).

6. The novel in-line heavy-duty connector of claim 5, wherein: the utility model discloses a shell fragment (3) is bent the shaping from left to right in proper order and has bottom portion (31), straight line portion (32), circular arc portion (33), flexion (34) and contact site (35), bottom portion (31) contacts with one side of fourth baffle (C5), and bottom portion (31) are located shell fragment active area (C7), straight line portion (32) upper end contacts with first baffle (C2), third baffle (C4) upper end is equipped with circular arc section (C8) crooked to one side of shell fragment draw-in groove (C6), and circular arc section (C8) contacts with circular arc portion (33) inboard, flexion (34) contact with button (5) lower extreme, and contact site (35) contact with second baffle (C3).

7. The novel in-line heavy-duty connector of claim 6, wherein: the lower extreme of button (5) is equipped with side scarf (51), side scarf (51) and flexion (34) contact, the both sides are equipped with recess slide (52) about button (5), keyhole (41) inner wall is equipped with bellied guide rail strip, guide rail strip with recess slide (52) sliding connection is located left recess slide (52) bottom of button (5) and is equipped with protrusion fender position (53), and recess slide (52) bottom that is located button (5) right side is equipped with notch cuttype buckle (54), and the upper end of notch cuttype buckle (54) is equipped with transverse baffle (55).

8. The novel in-line heavy-duty connector of claim 1, wherein: go up lock pin (1A) and down between lock pin (1B) carry out fixed connection through setting up first mortise-tenon joint structure (1C) on the medial surface and setting up second mortise-tenon joint structure (1D) at both ends, go up lock pin (1A) and down lock pin (1B) about both ends all have ground connection piece (1E) that are used for ground connection through second mortise-tenon joint structure (1D) fixed mounting, the four corners in epitheca (6) and inferior valve (7) all is equipped with the fixed block, ground connection piece (1E) carry out bolt fixed connection with the fixed block.

9. A novel in-line heavy-duty connector as claimed in any one of claims 1-8, wherein: the inner wall of the wire insertion hole (42) is provided with a plurality of strip-shaped bulges (44) at intervals.

10. The novel in-line heavy-duty connector of claim 9, wherein: and the cover plate (4) is provided with a test hole (43).

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