CN112838427A

CN112838427A - Terminal block that can plug-in tee junction

Info

Publication number: CN112838427A
Application number: CN202011616437.XA
Authority: CN
Inventors: 王南
Original assignee: Suzhou Sced Electronics Co ltd
Current assignee: Suzhou Cisco Saide Electronic Technology Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-05-25
Anticipated expiration: 2040-12-31
Also published as: CN112838427B

Abstract

The invention discloses a pluggable three-way connected terminal table, which relates to the field of terminals and comprises a main fixed block, wherein buckling grooves are symmetrically formed in the bottom surface and the bottom surface of the main fixed block, buckling blocks are inserted into the inner side edges of the buckling grooves, terminal heads are horizontally butted on three side edges of the main fixed block, an inserting hole is horizontally formed in one end, far away from the main fixed block, of each terminal head, shifting grooves are uniformly and symmetrically formed in the three side edges of the main fixed block, shifting blocks are inserted into the inner side edges of the shifting grooves, threading grooves are uniformly formed in one side edge, far away from the terminal heads, of the main fixed block, and supporting rods are horizontally welded to the inner side edges of the threading grooves. The device is simple in design and split structure and convenient to operate, the wiring harness is more stably and firmly installed by adopting a multiple clamping lock catch mode, and meanwhile, the connection is simple, convenient and efficient by adopting a plug-in structure, so that the device is suitable for being used in the existing multiple environments.

Description

Terminal block that can plug-in tee junction

Technical Field

The invention relates to the technical field of terminals, in particular to a terminal block capable of being connected in a pluggable three-way mode.

Background

The connecting terminal is used for conveniently connecting the wires, and is actually a section of metal sheet sealed in insulating plastic, both ends of the metal sheet are provided with holes for inserting the wires, and screws are used for fastening or loosening, for example, two wires are connected at times and disconnected at times, and then the two wires can be connected by using the terminal and disconnected at any time without welding or winding the two wires together, so that convenience and rapidness are realized. The novel power cable is suitable for interconnection of a large number of wires, and has special terminal blocks and terminal boxes in the power industry, wherein the terminal blocks are all single-layer, double-layer, current, voltage, common and breakable. The crimping area is designed to ensure reliable contact and to ensure that sufficient current can pass.

Traditional three way connection terminal is exactly that the integrated design makes when using, the installation pencil needs carry out the cooperation operation of corresponding instrument, it is very troublesome when letting the installation, can not improve work efficiency to the installation simultaneously, install in the main part and make and have the restriction condition, the inconvenient condition has been caused, because single fixed knot constructs and makes the pencil can take place to drop the condition after fixing, can let electric connection cause the interrupt condition, and itself at the terminal because insulating structure is incomplete, it has electrically conductive danger to have caused, be unfavorable for using in present work.

Disclosure of Invention

The invention aims to provide a plug-in tee-junction terminal block, which solves the problems that the traditional tee-junction terminal block proposed in the background technology is integrally designed, so that when in use, a wire harness needs to be installed, the matching operation of corresponding tools is needed, the installation is very troublesome, the working efficiency cannot be improved for installation, the installation on a main body causes the limiting condition and the inconvenience, the wire harness can fall off after being fixed due to a single fixing structure, the electric connection can cause the interruption condition, and the terminal is conductive and dangerous due to the incomplete insulating structure, and the use in the current work is not facilitated.

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

a terminal platform capable of being connected in a pluggable three-way mode comprises a main fixing block, wherein buckling grooves are symmetrically formed in the bottom surface and the bottom surface of the main fixing block, buckling blocks are inserted into the inner side edges of the buckling grooves, terminal heads are horizontally butted on the three side edges of the main fixing block, inserting holes are horizontally formed in one end, far away from the main fixing block, of each terminal head, poking grooves are uniformly and symmetrically formed in the three side edges of the main fixing block, poking blocks are inserted into the inner side edges of the poking grooves, threading grooves are uniformly formed in one side edge, far away from the terminal heads, of the main fixing block, supporting rods are horizontally welded on the inner side edges of the threading grooves, rear clamping grooves are vertically formed in the same side edge of each threading groove of the main fixing block, fixing clamping plates are vertically clamped in the inner side edges of the rear clamping grooves, connecting holes are uniformly formed in the side edges of the fixing clamping plates, the inner side of the main fixed block is fixedly welded with a middle sleeve block, the inner side of the middle sleeve block is fixedly sleeved with an insulating layer, the inner side of the insulating layer is fixedly sleeved with a conductive middle block, three sides of the middle sleeve block are horizontally welded with an extension pipe, the inner side of the extension pipe is symmetrically clamped with a buckle block, the inner side of the extension pipe is symmetrically clamped with an arc-shaped pressing strip, the inner sides of the middle sleeve block and the insulating layer are horizontally inserted with a conductive plate, three sides of the main fixed block are symmetrically provided with accommodating grooves, the inner side of each accommodating groove is horizontally inserted with a sealing plate, one end of the terminal head close to the main fixed block is horizontally welded with an inserting frame, one end of the inserting frame far away from the terminal head is symmetrically welded with an extending inserted rod, one end of the terminal head is horizontally fixed and inserted with a stabilizing inserted rod, and the top surface and the bottom surface of the stabilizing inserted rod are symmetrically provided with stabilizing, the stable inserted bar is horizontally welded with a conductive inserted bar at one end far away from the terminal head, arc-shaped grooves are symmetrically formed in the top surface and the bottom surface of the conductive inserted bar, a fixed ejector block is fixedly clamped at the inner side edge of the inserting hole, a movable pressing block is butted at the bottom surface of the fixed ejector block, a limiting groove is formed in the inserting hole far away from the opening end, a sliding block is clamped at the inner side edge of the limiting groove, a bottom screw hole is vertically formed in the bottom surface of the terminal head, a jacking screw rod is connected with the inner side edge of the bottom screw hole in a threaded manner, a locking ring is fixedly clamped at the inner side edge of the inserting hole, a sealing rubber block is fixedly clamped at the inner side edge of the inserting hole, an extrusion guide plate is horizontally and fixedly bonded at the top surface of the movable pressing block, a sleeve groove is formed in the bottom surface of the movable pressing block, a movable block is fixedly clamped at, the inner side edge of the hidden groove is fixedly clamped with a supporting spring.

As a preferred embodiment of the present invention: the number in catching groove is six, and six catching grooves two double-phase a set of symmetry respectively set up and be close to three side positions at the top surface and the bottom surface of main fixed block, and the inside in six catching grooves keeps leading to with the inside in butt joint groove and connects the setting, and the fixed butt fusion setting of buckling piece one-to-one respectively is being close to one end position extending the inserted bar side, and the number of terminal head is three, and the one end level butt joint of three terminal head is in butt joint groove's open end position.

As a preferred embodiment of the present invention: the central axis position at the terminal head is seted up to the spliced eye level, stirs two liang of a set of horizontal symmetry setting respectively in the three side positions of main fixed block in the groove, and stirs the groove symmetry and set up in the open end position of butt joint groove, stirs the inside of groove and keeps leading to the setting with the inside of accomodating the groove, stirs the one end of piece and runs through to stir the groove and extend to the inboard side of accomodating the groove, and the perpendicular welding of extension end is in the side one end position of closing plate.

As a preferred embodiment of the present invention: the threading groove is seted up respectively at a side of main fixed block and is close to four corners position, and the bracing piece level is fixed to be set up and is close to open end position in the inboard in threading groove, and back draw-in groove is vertical to the side central point who sets up at main fixed block put, and the bottom surface that the vertical downward run through main fixed block in bottom of back draw-in groove extends to outside limit setting, and a side of fixed cardboard keeps same horizontal plane position with the side of main fixed block, and the number of connecting hole is a plurality ofly, and a plurality of connecting holes all are the run through formula and set up.

As a preferred embodiment of the present invention: butt joint groove level respectively is seted up in three side positions of three terminal head, and well cover piece is fixed to be set up the inboard central point that puts at main fixed block, and extension pipe level one-to-one respectively sets up the axis position at butt joint groove, and the one end vertical fixation of extension pipe sets up the three side central points that put at well cover piece, and the one end fixed joint of buckle piece is in the inboard side position of hiding the recess, and the buckle piece is pegged graft at the inboard side position in stable groove in the one-to-one correspondence respectively.

As a preferred embodiment of the present invention: the number of arc layering is six, and six arc layering is two liang a set of stacked butt joint settings respectively, and same group of arc layering corresponds the inboard side position of joint at the arc wall respectively, and the perpendicular welding of the one end of current conducting plate is on three sides of electrically conductive middling blocks, and the horizontal one-to-one of the other end welds the one end position at the arc layering, and the one end of accomodating the groove is equal horizontally to extend to the side position of butt joint groove, and the inside of accomodating the groove keeps leading to the setting with the inside of butt joint groove.

As a preferred embodiment of the present invention: the position between the inboard of butt joint groove and the outside of extension pipe is pegged graft to the plug-in frame level, extend the inserted bar and overlap formula parallel fixation respectively sets up the one end top surface and the bottom surface position at the plug-in frame, stabilize the axis position that the inserted bar level set up at the plug-in frame, and stabilize the inserted bar and fix the kicking block electric connection setting each other, electrically conductive cutting is pegging graft in the one end level of keeping away from stable inserted bar and is put between same group's arc layering, the vertical position of keeping away from the open end side position at the spliced eye of seting up of spacing groove, the fixed welding in one end position at movable briquetting of a side of sliding block.

As a preferred embodiment of the present invention: the top of top connection screw rod runs through the inboard edge that bottom screw hole extended to the spliced eye, and the perpendicular welding of extension end is in the bottom position of movable block, and snap close ring fixed joint is close to the open end position in the spliced eye inboard, and the open end of snap close ring keeps unanimous setting with the opening direction of spliced eye, and the fixed joint of sealing rubber piece is in the open position of spliced eye.

As a preferred embodiment of the present invention: the top surface of the extrusion guide plate is horizontally butted at the bottom surface of the fixed top block, the hidden grooves are symmetrically formed in the inner side edge position of one end, far away from the middle sleeve block, of the extension pipe respectively, and one end of the supporting spring is butted at the inserting end position of the clamping block.

Compared with the prior art, the invention has the beneficial effects that:

1. the wire harness end fixing device is more stable through a multiple buckling mode, the inserted wire harness end cannot be separated under the action of the locking ring, meanwhile, the wire harness end extends to the bottom surface position of the fixed ejector block, the jacking screw rod is screwed to enable the jacking movable pressing block to move upwards, so that the extrusion guide plate extrudes and fixes the bottom wire harness end of the fixed ejector block, the sliding block cannot move or deviate under the limitation of the limiting groove, and the installation is simple without the cooperation of professional tools.

2. The invention inserts one end of the corresponding terminal head to the opening position of the butt joint groove after fixing the wiring harness, so that the inserting frame is inserted between the inner side of the butt joint groove and the outer side of the extension pipe, meanwhile, the inserted link is extended to drive the buckling block to be inserted into the buckling groove, so that the terminal head is fixed at the position of three sides of the main fixing block, the stable inserted bar drives the conductive inserted bar to be horizontally inserted into the extension tube under the insertion of the terminal head, under the top connection of the supporting spring, the buckling block is inserted into the inner side position of the stable groove, and meanwhile, the conductive inserting strip is horizontally inserted into the position between the arc pressing strips in the same group, so that the arc pressing strips are buckled at the inner side position of the arc groove, make pencil and electrically conductive well piece keep electric connection setting under the effect of current conducting plate, make safer and more reliable under the cup jointing of insulating layer.

3. According to the wire harness fixing device, the ribbon penetrates through the inside of the wire threading groove, the main fixing block is fixed at a specified position under the action of the supporting rod, the fixing clamping plate can be fixed at the specified position, then the clamping groove behind the side edge of the main fixing block is buckled on the outer side edge of the fixing clamping plate to be stabilized, the device is designed in a split structure, the structure is simple and convenient to operate, the wire harness is more stably and firmly installed in a multi-clamping locking mode, meanwhile, the plug-in structure is adopted to enable connection to be simple, convenient and efficient, and the wire harness fixing device is suitable for being used in multiple environments at present.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic perspective view of a terminal block capable of being connected by a plug-in tee;

FIG. 2 is a schematic diagram of a rear view connection detail of a pluggable three-way terminal block;

FIG. 3 is a schematic structural diagram of a front view section connection detail of a main fixing block of a pluggable three-way connection terminal block;

FIG. 4 is a schematic structural view of a top-view section connection detail of a main fixing block of a pluggable three-way terminal block;

fig. 5 is a schematic structural diagram of a front sectional connection detail of a terminal head of a pluggable three-way connection terminal block;

FIG. 6 is a schematic structural diagram of a front sectional connection detail of a movable press block of a pluggable three-way terminal block;

fig. 7 is a schematic structural view of a part a of a terminal block capable of plug-in three-way connection with enlarged connection details.

In the figure: 1. a main fixed block; 2. a fastening groove; 3. a buckling block; 4. a terminal head; 5. inserting holes; 6. a poking groove; 7. a shifting block; 8. a threading slot; 9. a support bar; 10. a rear clamping groove; 11. fixing the clamping plate; 12. connecting holes; 13. a butt joint groove; 14. a middle sleeve block; 15. an insulating layer; 16. a conductive middle block; 17. an extension pipe; 18. a buckling block; 19. an arc-shaped layering; 20. a conductive plate; 21. a receiving groove; 22. a sealing plate; 23. a plug-in frame; 24. an extension plunger; 25. stabilizing the inserted rod; 26. a stabilizing slot; 27. a conductive slip; 28. an arc-shaped slot; 29. fixing the top block; 30. a movable pressing block; 31. a limiting groove; 32. a slider; 33. a bottom screw hole; 34. jacking and connecting the screw rod; 35. a locking ring; 36. sealing the rubber block; 37. extruding the guide plate; 38. sleeving a groove; 39. a movable block; 40. hiding the groove; 41. supporting the spring.

Detailed Description

Referring to fig. 1-2, in the embodiment of the present invention, a pluggable three-way terminal block includes a main fixing block 1, fastening grooves 2 are symmetrically formed on a bottom surface and a bottom surface of the main fixing block 1, fastening blocks 3 are inserted into inner side edges of the fastening grooves 2, three sides of the main fixing block 1 are horizontally butted with terminal heads 4, the number of the fastening grooves 2 is six, the six fastening grooves 2 are respectively symmetrically arranged on a top surface and a bottom surface of the main fixing block 1 in a group two by two manner near to the three sides, the interiors of the six fastening grooves 2 and the interior of the butting grooves 13 are kept in a through connection arrangement, the fastening blocks 3 are respectively fixedly welded on the sides of the extension insertion rods 24 in a one-to-one correspondence manner near to one end, the number of the terminal heads 4 is three, one end of the three terminal heads 4 is horizontally butted at an open end of the butting groove 13, the terminal heads 4 are horizontally provided with insertion holes 5 at an end far from the main, three sides of a main fixed block 1 are uniformly and symmetrically provided with toggle grooves 6, the inner sides of the toggle grooves 6 are inserted with toggle blocks 7, an insertion hole 5 is horizontally arranged at the position of the central axis of a terminal head 4, the toggle grooves 6 are respectively arranged at the positions of the three sides of the main fixed block 1 in a pairwise horizontal symmetry manner, the toggle grooves 6 are symmetrically arranged at the position of the opening end of a butt joint groove 13, the inner part of the toggle groove 6 is communicated with the inner part of a containing groove 21, one end of the toggle block 7 penetrates through the toggle groove 6 and extends to the inner side of the containing groove 21, the extending end is vertically welded at one end of the side of a sealing plate 22, one side of the main fixed block 1 far away from the terminal head 4 is uniformly provided with a threading groove 8, the inner side of the threading groove 8 is horizontally welded with a support rod 9, the main fixed block 1 is vertically provided with a rear clamping groove 10 at the same side of the threading groove 8, the rear clamping, connecting holes 12 are uniformly formed in the side edge of a fixed clamping plate 11, threading grooves 8 are respectively formed in the positions, close to four corners, of one side edge of a main fixed block 1, supporting rods 9 are horizontally and fixedly arranged on the inner side of the threading grooves 8 and close to the position of an opening, rear clamping grooves 10 are vertically formed in the center of the side edge of the main fixed block 1, the bottom ends of the rear clamping grooves 10 vertically penetrate through the bottom surface of the main fixed block 1 downwards and extend to the outer side edge, one side edge of the fixed clamping plate 11 and the side edge of the main fixed block 1 keep the same horizontal plane position, the number of the connecting holes 12 is multiple, and the connecting holes 12 are formed;

referring to fig. 3-4, in the embodiment of the present invention, a pluggable three-way connected terminal block, wherein three sides of a main fixing block 1 are horizontally provided with a docking slot 13, an inner side of the main fixing block 1 is fixedly welded with a middle sleeve block 14, an inner side of the middle sleeve block 14 is fixedly sleeved with an insulating layer 15, an inner side of the insulating layer 15 is fixedly sleeved with a conductive middle block 16, three sides of the middle sleeve block 14 are horizontally welded with extension tubes 17, inner sides of the extension tubes 17 are symmetrically clamped with clamping blocks 18, the docking slot 13 is respectively horizontally arranged at three sides of three terminal heads 4, the middle sleeve block 14 is fixedly arranged at an inner center position of the main fixing block 1, the extension tubes 17 are respectively horizontally arranged at a center axis position of the docking slot 13 one by one, one end of the extension tube 17 is vertically and fixedly arranged at a center position of three sides of the middle sleeve block 14, one end of the clamping block 18 is fixedly clamped at an inner side position of a hidden groove 40, the buckling blocks 18 are correspondingly inserted in the inner side positions of the stabilizing grooves 26 one by one, arc-shaped pressing strips 19 are symmetrically clamped on the inner side of the extension pipe 17, the inner side ends of the middle sleeve block 14 and the insulating layer 15 are horizontally inserted with a current-conducting plate 20, three sides of the main fixing block 1 are symmetrically provided with accommodating grooves 21, the number of the arc-shaped pressing strips 19 is six, the six arc-shaped pressing strips 19 are respectively arranged in a pairwise and superposed butt joint mode, the same group of arc-shaped pressing strips 19 are correspondingly clamped in the inner side positions of the arc-shaped grooves 28, one end of the current-conducting plate 20 is vertically welded on the three sides of the current-conducting middle block 16, the other end of the current-conducting plate 20 is horizontally welded at one end position of the arc-shaped pressing strips 19 one by one, one end of each accommodating groove 21 horizontally extends to the side position of the butt joint groove 13, the interior of each accommodating groove 21 is communicated;

referring to fig. 5-7, in the embodiment of the present invention, a pluggable three-way terminal block is provided, wherein a plug frame 23 is horizontally welded to an end of a terminal head 4 close to a main fixing block 1, extension insertion rods 24 are symmetrically welded to an end of the plug frame 23 away from the terminal head 4, a stable insertion rod 25 is horizontally fixed to an end of the terminal head 4, stabilizing grooves 26 are symmetrically formed on a top surface and a bottom surface of the stable insertion rod 25, the plug frame 23 is horizontally inserted between an inner side of a docking groove 13 and an outer side of an extension tube 17, the extension insertion rods 24 are respectively fixedly stacked on a top surface and a bottom surface of the plug frame 23 in parallel, the stable insertion rod 25 is horizontally disposed on a central axis of the plug frame 23, the stable insertion rod 25 and the fixed top block 29 are electrically connected to each other, a conductive insertion strip 27 is horizontally welded to an end of the stable insertion rod 25 away from the terminal head 4, the top surface and the bottom surface of the conductive inserting strip 27 are symmetrically provided with arc-shaped grooves 28, the inner side edge of the inserting hole 5 is fixedly clamped with a fixed top block 29, the bottom surface of the fixed top block 29 is butted with a movable pressing block 30, the inserting hole 5 is provided with a limiting groove 31 far away from the opening end, the inner side edge of the limiting groove 31 is clamped with a sliding block 32, one end of the conductive inserting strip 27 far away from the stable inserting rod 25 is horizontally inserted between the same group of arc-shaped pressing strips 19, the limiting groove 31 is vertically and oppositely arranged at the position of the side edge of the inserting hole 5 far away from the opening end, one side edge of the sliding block 32 is fixedly welded at one end position of the movable pressing block 30, the bottom surface of the terminal head 4 is vertically and oppositely provided with a bottom screw hole 33, the inner side edge of the bottom screw hole 33 is in threaded connection with a top connecting screw rod 34, the inner side edge of the inserting hole 5 is fixedly clamped with a locking ring 35, the inner, the extending end is vertically welded at the bottom end of the movable block 39, the locking ring 35 is fixedly clamped at the position close to the opening end inside the inserting hole 5, and the open end of lock catch ring 35 keeps unanimous the setting with the opening direction of spliced eye 5, the fixed joint of sealed gluey piece 36 is in the open position of spliced eye 5, the fixed bonding of top surface level of activity briquetting 30 has extrusion baffle 37, the grooving 38 has been seted up to the bottom surface of activity briquetting 30, the inboard side fixed joint of grooving 38 has movable block 39, hidden recess 40 has been seted up to the inboard side symmetry of extension pipe 17, the inboard side fixed joint of hiding recess 40 has supporting spring 41, the top surface level butt joint of extrusion baffle 37 is in the bottom surface position of fixed kicking block 29, hide recess 40 and symmetrically set up respectively in the inboard side position of the one end of extension pipe 17 far away from well casing block 14, the one end butt joint of supporting spring 41 is in the grafting end position of buckle block 18.

The components are standard parts in general or known to those skilled in the art, and their structure and principle are known to those skilled in the art through technical manuals or through routine experimentation.

The working principle of the invention is as follows:

the wiring harness end is correspondingly inserted in the insertion hole 5, the wiring harness end penetrates through the sealing rubber block 36 and extends to the inside of the lock catch ring 35, the inserted wiring harness end cannot be separated under the action of the lock catch ring 35, meanwhile, the wiring harness end extends to the bottom surface position of the fixed top block 29, the butting screw 34 is screwed to enable the butting movable pressing block 30 to move upwards, the extrusion guide plate 37 is enabled to extrude and fix the bottom wiring harness end of the fixed top block 29, the sliding block 32 and the limiting groove 31 are limited so that the moving deviation cannot occur, after the wiring harness is fixed, one end of the corresponding terminal head 4 is inserted to the opening position of the butt joint groove 13, the insertion frame 23 is inserted between the inner side of the butt joint groove 13 and the outer side of the extension pipe 17, meanwhile, the extension insertion rod 24 drives the buckling block 3 to be inserted in the buckling groove 2, and therefore, the terminal head 4 is fixed at three side positions of the main fixing block 1, the stable inserted rod 25 drives the conductive inserted bar 27 to be horizontally inserted into the extension pipe 17 under the insertion of the terminal head 4, the snap-in piece 18 is inserted in the inner side position of the stabilizing groove 26 under the abutment of the supporting spring 41, meanwhile, the conducting inserting strips 27 are horizontally inserted between the arc-shaped pressing strips 19 in the same group, so that the arc-shaped pressing strips 19 are clamped at the inner side edge of the arc-shaped groove 28, the wiring harness is electrically connected with the conductive middle block 16 under the action of the conductive plate 20, the insulating layer 15 is sleeved to ensure that the wiring harness is more safe and reliable, the ribbon penetrates through the inside of the threading groove 8, the main fixing block 1 is fixed at a designated position under the action of the supporting rod 9, and the fixing clamping plate 11 can also be fixed at a designated position, then, the rear clamping groove 10 at the side edge of the main fixing block 1 is buckled on the outer side edge of the fixing clamping plate 11 to be stable.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention are equivalent to or changed within the technical scope of the present invention.

Claims

1. A terminal block capable of being connected through a pluggable tee joint comprises a main fixing block (1) and is characterized in that buckling grooves (2) are symmetrically formed in the bottom surface and the bottom surface of the main fixing block (1), buckling blocks (3) are inserted into the inner side edges of the buckling grooves (2), terminal heads (4) are horizontally and oppositely connected to three side edges of the main fixing block (1), an inserting hole (5) is horizontally formed in one end, far away from the main fixing block (1), of each terminal head (4), toggle grooves (6) are uniformly and symmetrically formed in the three side edges of the main fixing block (1), toggle blocks (7) are inserted into the inner side edges of the toggle grooves (6), threading grooves (8) are uniformly formed in one side edge, far away from the terminal heads (4), of the main fixing block (1), supporting rods (9) are horizontally and symmetrically welded to the inner side edges of the threading grooves (8), rear clamping grooves (10) are vertically formed in the same side edge of the threading grooves (8) of the main fixing block (1), the inner side edge of the rear clamping groove (10) is vertically and vertically clamped with a fixed clamping plate (11), the side edge of the fixed clamping plate (11) is uniformly provided with connecting holes (12), three side edges of the main fixed block (1) are horizontally and horizontally provided with butt joint grooves (13), the inner side edge of the main fixed block (1) is fixedly welded with a middle sleeve block (14), the inner side edge of the middle sleeve block (14) is fixedly sleeved with an insulating layer (15), the inner side edge of the insulating layer (15) is fixedly sleeved with a conductive middle block (16), the three side edges of the middle sleeve block (14) are horizontally welded with an extension pipe (17), the inner side edges of the extension pipe (17) are symmetrically clamped with clamping blocks (18), the inner side edges of the extension pipe (17) are symmetrically clamped with arc-shaped pressing strips (19), the inner side edges of the middle sleeve block (14) and the insulating layer (15) are horizontally spliced with conductive plates (20), the three side edges of the main fixed block (1) are symmetrically provided with accommodating grooves, the inner side edge of the accommodating groove (21) is horizontally spliced with a sealing plate (22), one end of the terminal head (4) close to the main fixed block (1) is horizontally welded with a splicing frame (23), one end of the splicing frame (23) far away from the terminal head (4) is symmetrically welded with an extension inserted bar (24), one end of the terminal head (4) is horizontally fixed and spliced with a stable inserted bar (25), the top surface and the bottom surface of the stable inserted bar (25) are symmetrically provided with stabilizing grooves (26), one end of the stable inserted bar (25) far away from the terminal head (4) is horizontally welded with a conductive inserted bar (27), the top surface and the bottom surface of the conductive inserted bar (27) are symmetrically provided with arc grooves (28), the inner side edge of the inserting hole (5) is fixedly clamped with a fixed top block (29), the bottom surface of the fixed top block (29) is butted with a movable pressing block (30), the inserting hole (5) is far away from the opening end and is provided with a limiting groove (31), sliding blocks (32) are connected to the inner side edge of the limiting groove (31), bottom screw holes (33) are vertically formed in the bottom surface of the terminal head (4), the inner side edge of each bottom screw hole (33) is connected with a jacking screw rod (34) in a threaded mode, a lock catch ring (35) is connected to the inner side edge of each insertion hole (5) in a fixed clamping mode, a sealing rubber block (36) is connected to the inner side edge of each insertion hole (5) in a fixed clamping mode, an extrusion guide plate (37) is fixedly bonded to the top surface of each movable pressing block (30) in a horizontal mode, a sleeve groove (38) is formed in the bottom surface of each movable pressing block (30), a movable block (39) is connected to the inner side edge of each sleeve groove (38) in a fixed clamping mode, hidden grooves (40) are symmetrically formed in the inner side edge of each extending pipe (17), and supporting springs (.

2. The pluggable tee connection terminal block according to claim 1, wherein the number of the fastening grooves (2) is six, the six fastening grooves (2) are symmetrically arranged on the top surface and the bottom surface of the main fixing block (1) in a pairwise and group manner and are close to three side positions, the interiors of the six fastening grooves (2) and the interiors of the butt-joint grooves (13) are kept in a through connection manner, the fastening blocks (3) are respectively arranged on the sides of the extension insertion rods (24) in a one-to-one correspondence and are fixedly welded and close to one end position, the number of the terminal heads (4) is three, and one ends of the three terminal heads (4) are horizontally butted at the opening end positions of the butt-joint grooves (13).

3. The pluggable tee connection terminal block according to claim 1, wherein the plug-in hole (5) is horizontally arranged at a central axis position of the terminal head (4), the toggle grooves (6) are respectively arranged at three side positions of the main fixed block (1) in a group of two by two horizontally symmetrical manner, the toggle grooves (6) are symmetrically arranged at an open end position of the butt-joint groove (13), the interior of the toggle groove (6) and the interior of the accommodating groove (21) are communicated, one end of the toggle block (7) penetrates through the toggle groove (6) and extends to the inner side of the accommodating groove (21), and the extension end is vertically welded at one end position of the side of the sealing plate (22).

4. The pluggable tee connection terminal block according to claim 1, wherein the threading grooves (8) are respectively formed in one side edge of the main fixing block (1) near the four-side angle position, the supporting rods (9) are horizontally and fixedly arranged on the inner side of the threading grooves (8) near the open end position, the rear clamping grooves (10) are vertically formed in the center position of the side edge of the main fixing block (1), the bottom ends of the rear clamping grooves (10) vertically penetrate through the bottom surface of the main fixing block (1) downwards to extend to the outer side edge, one side edge of the fixing clamping plate (11) and the side edge of the main fixing block (1) are kept at the same horizontal plane position, the number of the connecting holes (12) is multiple, and the connecting holes (12) are formed in a penetrating manner.

5. The pluggable three-way connection terminal block according to claim 1, wherein the butt-joint grooves (13) are horizontally formed in three side positions of the three terminal heads (4), the middle sleeve block (14) is fixedly arranged at the center position of the inner side of the main fixing block (1), the extension pipes (17) are horizontally arranged at the central axis position of the butt-joint grooves (13) in a one-to-one correspondence manner, one ends of the extension pipes (17) are vertically and fixedly arranged at the center position of the three side positions of the middle sleeve block (14), one ends of the buckling blocks (18) are fixedly clamped at the inner side position of the hidden groove (40), and the buckling blocks (18) are correspondingly inserted at the inner side position of the stabilizing groove (26) one by one.

6. The pluggable tee connection terminal block according to claim 1, wherein the number of the arc-shaped pressing strips (19) is six, the six arc-shaped pressing strips (19) are respectively arranged in a pairwise overlapping butt joint mode, the same group of arc-shaped pressing strips (19) are correspondingly clamped at the inner side positions of the arc-shaped grooves (28), one end of the conductive plate (20) is vertically welded at three sides of the conductive middle block (16), the other end of the conductive plate is horizontally welded at one end position of the arc-shaped pressing strips (19) in a one-to-one correspondence mode, one end of the accommodating groove (21) horizontally extends to the side position of the butt joint groove (13), and the inside of the accommodating groove (21) and the inside of the butt joint groove (13) are kept in a through joint mode.

7. The pluggable three-way connection terminal block according to claim 1, wherein the plug frame (23) is horizontally plugged between the inner side of the butt-joint groove (13) and the outer side of the extension pipe (17), the extension insertion rods (24) are respectively fixedly arranged on the top surface and the bottom surface of one end of the plug frame (23) in a stacked parallel manner, the stabilizing insertion rod (25) is horizontally arranged on the central axis of the plug frame (23), the stabilizing insertion rod (25) and the fixed top block (29) are electrically connected with each other, the conductive insertion strip (27) is horizontally plugged between the same group of arc-shaped pressing strips (19) at one end far away from the stabilizing insertion rod (25), the limiting groove (31) is vertically arranged on the side edge far away from the open end of the plug hole (5), and one side edge of the sliding block (32) is fixedly welded at one end of the movable pressing block (30).

8. The pluggable three-way connection terminal block according to claim 1, wherein the top end of the top connection screw (34) extends to the inner side of the insertion hole (5) through the bottom screw hole (33), the extending end is vertically welded to the bottom end of the movable block (39), the locking ring (35) is fixedly clamped at the position close to the opening end inside the insertion hole (5), the opening end of the locking ring (35) and the opening direction of the insertion hole (5) are arranged in the same direction, and the sealing rubber block (36) is fixedly clamped at the opening position of the insertion hole (5).

9. The pluggable three-way connection terminal block according to claim 1, wherein the top surface of the extrusion guide plate (37) is horizontally butted at the bottom surface position of the fixed top block (29), the hidden grooves (40) are symmetrically formed in the inner side edge positions of one end of the extension pipe (17) far away from the middle sleeve block (14), and one end of the supporting spring (41) is butted at the plugging end position of the buckling block (18).