CN211182572U

CN211182572U - Binding post's shell structure

Info

Publication number: CN211182572U
Application number: CN201922202759.9U
Authority: CN
Inventors: 饶小坡
Original assignee: Jiangmen Krealux Electrical Appliances Co Ltd
Current assignee: Jiangmen Krealux Electrical Appliances Co Ltd
Priority date: 2019-12-10
Filing date: 2019-12-10
Publication date: 2020-08-04
Anticipated expiration: 2029-12-10
Also published as: WO2021114352A1

Abstract

The utility model discloses a binding post's shell structure, this binding post's shell structure all adopts the shell and the gland of a body structure to constitute, shell and gland post-assembling form fixed compact structure, metal connecting piece arranges in the inside cavity and by its spacing fixed, only the flexure strip just can deform under the effect of pulling out the lid, other fixed parts of metal connecting piece are all died by the location limit, and the shell structure of constituteing still can realize plug wire/off-line effect, the stability of improvement wiring, the smoothness nature of pulling out the lid action and press down stability have been improved, the location after the wire wiring can also be injectd.

Description

Binding post's shell structure

Technical Field

The utility model relates to a technical field of binding post insulation accessory especially relates to a binding post's shell structure.

Background

The wiring terminal is used as a connecting component of electronic elements, electrical appliances and the like, can achieve the effects of wiring and electrifying, realizes the good connection function of wiring and electrifying, and is an important wiring component for connecting the electrical appliances and between the wiring terminal and the wiring terminal. Some existing wiring terminals adopt a mode of matching a pulling cover with a metal connecting piece to realize the functions of one-step wiring and one-step off-line, and the wiring and the off-line are convenient. Generally, such a terminal is composed of several large parts, which are respectively an insulating housing structure composed of a housing and a press cover, a metal connector disposed in a cavity of the housing structure, and a pull cover penetrating into the cavity of the housing structure from the top of the housing and contacting with or pressing against the metal connector, and the general principle is as follows: the elastic sheet of the metal connecting piece is pressed by applying force on the pull cover to form a certain gap between the elastic sheet and the fixed inserting sheet of the metal connecting piece, the lead is inserted into the shell and positioned in the gap, then the pull cover is reset, and at the moment, the top of the elastic sheet is clamped between the lead and the fixed sheet to form a stable connection wire under the action of the elastic force; when the wire is taken off, the pulling cover is only needed to be pulled up to apply force to the elastic sheet, the elastic sheet does not clamp the wire any more, and the purpose of forming the wire taking off by taking off the wire can be achieved. In principle, the metal connecting piece is fixed in the shell structure, the fixed part of the metal connecting piece is limited and can not move, only the elastic sheet deforms under the action of pulling the cover, meanwhile, the cover pulling part and the shell structure are matched and mounted, the shell structure not only plays an insulating role, but also has the effects of limiting the metal connecting piece, limiting the cover pulling and the like, and also has the functions of improving the wiring stability and the like. The existing shell structure adopts the structural forms of upper and lower shell matching assembly, front and rear shell matching assembly and the like, and the formed internal cavity is used as the mounting position of the metal connecting piece and is used as a limiting function, so that the shell structure has very important function and can directly influence the performances such as the stability and the like of the metal connecting piece; the existing shell structure has a plurality of inferior products, which can cause low wiring conductivity of the whole wiring terminal and affect the wiring quality; the existing shell structure also has no scheme specially designed for the structure of the metal connecting piece, so that the metal connecting piece can be stably and compactly fixed in the shell, or a fixed mounting structure formed by no stress points of a multipoint positioning metal connecting piece is available; thus, the existing housing structure is yet to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model relates to an overcome prior art's defect, aim at provides a binding post's shell structure, this binding post's shell structure all adopts the shell and the gland of a body structure to constitute, form fixed compact structure after shell and the gland equipment, metal connecting piece arranges in inside cavity and by its spacing fixed, only the flexure strip just can deform under the effect of pulling out the lid, other fixed part of metal connecting piece all is died by the location limit, and the shell structure of constituteing still can realize the plug wire/take off the line effect, improve the stability of wiring, the smoothness nature of pulling out the lid action and pressing stability have been improved, the location after the wire wiring has also been injectd.

The utility model provides a technical scheme that its technical problem adopted is: a shell structure of a wiring terminal comprises a shell and a gland which are matched and fixedly arranged, wherein the shell and the gland are matched and arranged to form an internal cavity, a metal connecting piece which forms a wiring effect with a lead is fixed and limited in the internal cavity, and the shell and the gland are of an integrated structure; the front end of the shell is provided with at least two wire plugging ports allowing corresponding wires to be respectively plugged into the inner cavity, and the rear end of the shell is a plug end with the size smaller than the external size of the shell; the top of the shell is provided with a plug board assembly extending from the top of the wire plugging port to the rear end of the shell, the plug board assembly comprises at least two plug boards, one end of each plug board is fixedly integrated with the top of the wire plugging port, the other end of each plug board is inserted into the corresponding gland to form mounting and fixing, a cap pulling and inserting gap allowing a pulling cap of a wiring terminal to be inserted into the inner cavity is reserved between the side parts of the adjacent plug boards and between the outer side of the plug board close to the side part of the shell and the outer side part of the shell, and sliding grooves matched with rotating heads of the pulling caps are; the bottom of the wire inserting port extends towards the direction of the internal cavity to form a positioning raised head for positioning and pressing one fixed end of the elastic sheet of the metal connecting piece, a positioning cavity groove is formed by the positioning raised head and the bottom of the internal cavity, and one fixed end of the elastic sheet of the metal connecting piece is arranged in the positioning cavity groove; the inner side surface of the gland is provided with a socket groove which is matched with the plug end of the shell, the upper part in the gland is provided with an inserting sheet limiting slot for allowing a fixed inserting sheet on the top surface of the back of the metal connecting piece to be inserted, a positioning plate for tightly supporting the metal surface of the back of the metal connecting piece is arranged below the inserting sheet limiting slot in the gland, and threading positioning grooves corresponding to threading holes in the back of the metal connecting piece are formed between adjacent positioning plates and between the side surface of the gland and the outermost positioning plate; and a test port for testing the power connection condition is arranged on the shell or/and the gland.

The general structure of the metal connecting piece and the pull cover which form the integral wiring terminal together with the structural configuration of the shell is as follows: the metal connecting piece comprises a fixing insertion piece which is transversely arranged, a threading piece with the bottom extending downwards to form an integral structure and provided with a threading hole, a bottom plate fixedly connected with the bottom of the threading piece, and an elastic body which extends inwards and upwards to reach the top of the threading hole at one end of the bottom plate, wherein the fixing insertion piece and the threading piece form a shape similar to 7 in cross section, and the bottom plate and the elastic piece form a shape similar to ゝ in cross section. The pull-out cover is by handle portion and two press plates of branch symmetrical structure that form from handle portion downwardly extending, the inboard of two press plates is equipped with the head that rotates that slides in the picture peg spout, pull-out cover after stretching into inside cavity from pull-out cover insertion gap, rotate in the head is packed into the spout, the bottom of press plate is pasted tight flexure strip top surface or is applyed the elastic force that is less than the flexure strip elasticity that resets on the flexure strip (the flexure strip does not have the deformation production), the handle of pulling out the cover lies or slightly perks in the front end of shell and the very little part of protrusion. After the pulling cover is installed in the shell structure, when the pulling cover is pulled, the pressing end of the pulling cover presses the elastic sheet of the metal connecting piece downwards, and when the pulling cover is pulled to 90 degrees or more than 90 degrees, the pressing end of the pulling cover presses the elastic sheet to the maximum deformation amplitude, so that a good wiring effect is formed; if the pulling angle of the pulling cover is less than 90 degrees, the pulling cover is easily opened unsuccessfully by the elastic sheet under the reset acting force due to the small pulling angle and the insufficient applied pressure, and the pulling cover returns to the initial state, or the distance for pressing the elastic sheet is small, so that the wiring difficulty is caused.

Furthermore, the plug end protrudes towards the rear end from the side surface and the bottom surface of the shell and forms a two-stage step shape with the side surface and the bottom surface of the shell, the plug end of the shell is positioned at the inner side, and the side surface and the bottom surface of the shell are positioned at the outer side; the socket slot consists of a side slot which is matched and spliced with the side part of the plug end and a bottom slot which is matched and spliced with the bottom of the plug end; the upper part of the gland is provided with a plugboard slot matched with the plugboard insertion end; the plug end and the socket groove are fixedly arranged, and the plug board slot are fixedly arranged through bonding fixation, ultrasonic welding fixation or buckling fixation of a buckle component.

Furthermore, the buckle component comprises a bottom surface clamping convex head which is arranged on the bottom surface of the plug end and is convex, a top surface clamping convex head which is arranged on the top surface of the plug board and is convex, a bottom clamping notch which is arranged at the bottom of the bottom slot and is matched and fastened with the bottom surface clamping convex head, a top clamping notch which is arranged at the top of the plug slot and is matched and fastened with the top surface clamping convex head, and the buckle component also comprises a side part clamping convex head which is arranged on the side part of the plug end and a side part clamping notch which is arranged on the side slot and is matched and fastened with the side; the inserting end part of the inserting plate with the top surface clamping convex head is an inserting plate plug and extends out from the bottom of the inserting plate, the inserting plate and the pressing cover form butt joint, splicing, installation and fixation after the inserting plate plug is inserted into the inserting plate slot, and each inserting plate plug forms fixed fastening installation corresponding to the respective inserting plate slot.

Furthermore, the positioning raised head is triangular, trapezoidal or rhombic, so that the space of the positioning cavity groove is gradually narrowed from outside to inside.

Furthermore, the positioning plate tightly pushes against the metal surface between the adjacent threading holes of the metal connecting piece, the threading holes and the threading positioning grooves are arranged opposite to each other, and the positioning grooves form a separation state by the positioning plate.

Furthermore, the notch of the threading positioning groove is larger than the orifice of the threading hole or smaller than the orifice of the threading hole, and both the orifice of the threading hole and the notch of the threading positioning groove are larger than the cross section caliber of the metal end of the wire.

Furthermore, convex arc-shaped raised heads extend from the two sides of the inserting sheet limiting slot to the top.

Furthermore, the test port is arranged at the rear end of the gland.

Or the front end of the shell and the rear end of the gland are respectively provided with a shell testing port and a gland testing port.

Furthermore, the four corners of the housing are rectangular with rounded corners after the housing and the gland are fastened.

To sum up, the utility model discloses a binding post's shell structure all adopts the shell and the gland of a body structure to constitute, form fixed compact structure after shell and the gland equipment, metal connecting piece arranges in the inside cavity and by its spacing fixed, only the flexure strip just can deform under the effect of pulling out the lid, other fixed parts of metal connecting piece are all fixed a position the limit and die, and the shell structure of constituteing still can realize the plug wire/take off the line effect, improve the stability of wiring, improved the smoothness nature of pulling out the lid action and press down stability, can also inject the location after the wire wiring.

Drawings

Fig. 1 is an exploded schematic view of a housing structure of a terminal connector according to embodiment 1 of the present invention;

FIG. 2 is a front view of the housing;

FIG. 3 is a rear view of the housing;

FIG. 4 is a top view of the housing;

FIG. 5 is a bottom view of the housing;

FIG. 6 is a perspective view of the housing;

FIG. 7 is a perspective view of the housing in another orientation;

FIG. 8 is a front view of the gland;

FIG. 9 is a rear view of the gland;

FIG. 10 is a top view of the gland;

FIG. 11 is a bottom view of the gland;

FIG. 12 is a perspective view of the gland;

FIG. 13 is a perspective view of the gland in another orientation;

FIG. 14 is a partial cross-sectional view of the gland and metal connector assembly after installation with the threading positioning slot having a slot opening smaller than the opening of the threading hole;

FIG. 15 is a partial cross-sectional view of the installed gland and metal connector with the opening of the threading positioning slot being larger than the opening of the threading hole;

fig. 16 is a schematic view of an integral terminal;

fig. 17 is a cross-sectional view of the integral terminal;

FIG. 18 is a cross-sectional view of the wire connecting terminal and the lead wire when they are not connected;

FIG. 19 is a cross-sectional view of the terminal with the cap pulled out and the wire not connected;

fig. 20 is a cross-sectional view of the terminal post wired to a wire;

fig. 21 is a cross-sectional view of the terminal shown removed from the wire;

FIG. 22 is a schematic view of the housing in a three-position wiring configuration;

FIG. 23 is a schematic view of a gland employing a three-position wiring configuration;

FIG. 24 is a schematic view of a housing employing a five-bit wiring configuration;

FIG. 25 is a schematic view of a gland employing a five-position wiring configuration;

FIG. 26 is a schematic view of the housing in a two-position wire configuration and ultrasonic welding;

FIG. 27 is a schematic view of a two-position wire configuration and ultrasonic welding of the gland;

FIG. 28 is a schematic view of the housing in a three-position wiring configuration and ultrasonic welding;

FIG. 29 is a schematic view of a gland employing a three-position wiring configuration and ultrasonic welding;

FIG. 30 is a schematic view of a housing employing a five-position wiring configuration and ultrasonic welding;

FIG. 31 is a schematic view of a gland employing a five-position wiring structure and ultrasonic welding;

fig. 32 is a cross-sectional view of the integral terminal mounting using ultrasonic welding;

FIG. 33 is a schematic view of the housing in a two-position wire configuration and the latch assembly in an up-down and side latch configuration;

FIG. 34 is a schematic view of a two-position wire configuration for the gland and a snap assembly with upper and lower and side snap configurations;

FIG. 35 is a schematic view of a housing employing a five-position wiring configuration and a latch assembly employing upper, lower and side latch configurations;

FIG. 36 is a schematic view of a five-position wiring configuration for the gland and a snap assembly with upper, lower and side snap configurations;

FIG. 37 is a schematic view of a five-position wiring configuration for the gland and a snap assembly with upper, lower and side snap configurations;

FIG. 38 is a schematic view of a five-position wiring configuration for the gland and a snap assembly with upper, lower and side snap configurations;

fig. 39 is a sectional view of the integral terminal of embodiment 2;

FIG. 40 is a schematic view of the case of embodiment 2 employing a two-position wiring structure;

FIG. 41 is another schematic view showing the two-position wiring structure adopted in the case of embodiment 2;

FIG. 42 is a schematic view of the gland of embodiment 2 employing a two-position wire structure;

FIG. 43 is another schematic view showing the gland of embodiment 2 in a two-position wire configuration;

FIG. 44 is a schematic view of the case of embodiment 2 in a three-position wiring structure;

FIG. 45 is another schematic view showing the housing of embodiment 2 in a three-position wiring configuration;

FIG. 46 is a schematic view of the gland of embodiment 2 in a three-position wiring structure;

FIG. 47 is another schematic view showing the direction in which the pressing cover of embodiment 2 adopts a three-position wiring structure;

FIG. 48 is a schematic view of a five-bit wiring structure employed in the case of embodiment 2;

FIG. 49 is another schematic view of the housing of embodiment 2 in the form of a five-bit wiring structure;

FIG. 50 is a schematic view of a gland of embodiment 2 in a five-terminal configuration;

fig. 51 is another schematic view of the gland of embodiment 2 in the direction of a five-terminal structure.

Detailed Description

Example 1

The utility model discloses a shell structure of binding post that embodiment 1 described, as shown in fig. 1, fig. 2, fig. 3, fig. 4, fig. 5, fig. 6, fig. 7, fig. 8, fig. 9, fig. 10, fig. 11, fig. 12, fig. 13, fig. 14, fig. 15, fig. 16, fig. 17, fig. 18, fig. 19, fig. 20 and fig. 21, the shell structure includes shell 1 and gland 2 that mutually support the lock joint installation, the shell structure is the shell structure that has two plug wire modes, shell and gland cooperation installation form an inside cavity and fix the metal connecting piece 4 that forms the wiring effect with wire 3 and spacing in the inside cavity, shell and gland are the integral type structure; the front end of the shell is provided with two wire plugging ports 5 which allow corresponding wires to be respectively plugged into the inner cavity, and the rear end of the shell is provided with a plug end 25 with the size smaller than the external dimension of the shell; the top of the shell is a plug board assembly 6 extending from the top of the wire plugging port to the rear end of the shell, the plug board assembly comprises two plug boards 7, one end of each plug board is fixedly integrated with the top of the wire plugging port, the other end of each plug board is inserted into the corresponding gland to form a lock joint, a plug board inserting gap 8 allowing a plug board of a wiring terminal to be inserted into the inner cavity is reserved between the side parts of the adjacent plug boards and between the outer side of the plug board close to the side parts of the shell and the outer side part of the shell, and sliding chutes 10 matched with rotating heads of the plug boards 9 are recessed in the; the bottom of the wire inserting port extends towards the direction of the internal cavity to form a positioning raised head 11 for positioning and pressing one fixed end of the elastic sheet of the metal connecting piece, a positioning cavity groove 12 is formed by the positioning raised head and the bottom of the internal cavity, and one fixed end of the elastic sheet of the metal connecting piece is arranged in the positioning cavity groove; the inner side surface of the gland is provided with a socket groove 13 which is tightly matched with the plug end of the shell, the upper part in the gland is provided with an inserting sheet limiting slot 14 which allows the fixed inserting sheet of the back top surface of the metal connecting piece to be inserted, a positioning plate 15 which tightly supports the back metal surface of the metal connecting piece is arranged below the inserting sheet limiting slot in the gland, and threading positioning grooves 16 which correspond to the threading holes 27 in the back of the metal connecting piece are formed between the adjacent positioning plates and the side surface of the gland and the outermost positioning plate.

The general structure of the metal connecting piece and the pull cover which form the integral wiring terminal together with the structural configuration of the shell is as follows: the metal connecting piece comprises a fixing insertion piece which is transversely arranged, a threading piece with the bottom extending downwards to form an integral structure and provided with a threading hole, a bottom plate fixedly connected with the bottom of the threading piece, and an elastic body which extends inwards and upwards to reach the top of the threading hole at one end of the bottom plate, wherein the fixing insertion piece and the threading piece form a shape similar to 7 in cross section, and the bottom plate and the elastic piece form a shape similar to ゝ in cross section. The pull-out cover is by handle portion and two press plates of branch symmetrical structure that form from handle portion downwardly extending, the inboard of two press plates is equipped with the head that rotates that slides in the picture peg spout, pull-out cover after stretching into inside cavity from pull-out cover insertion gap, rotate in the head is packed into the spout, the bottom of press plate is pasted tight flexure strip top surface or is applyed the elastic force that is less than the flexure strip elasticity that resets on the flexure strip (the flexure strip does not have the deformation production), the handle of pulling out the cover lies or slightly perks in the front end of shell and the very little part of protrusion.

In this embodiment, the plug end protrudes from the side and bottom surfaces of the housing toward the rear end and forms a two-stage step with the side and bottom surfaces of the housing, the plug end of the housing is located at the inner side, and the side and bottom surfaces of the housing are located at the outer side; the socket slot consists of a side slot 19 which is matched and plugged with the side of the plug end and a bottom slot 20 which is matched and plugged with the bottom of the plug end; the upper part of the gland is provided with a plugboard slot 22 matched with the plugboard insertion end; the plug end is fixedly installed with the socket groove, and the plug board is fixedly installed with the plug board slot through the buckling and connecting of the buckle assembly.

In this embodiment, the buckle assembly includes a bottom surface clamping protrusion 17 protruding from the bottom surface of the plug end, a top surface clamping protrusion 18 protruding from the top surface of the board, a bottom clamping notch 21 formed at the bottom of the bottom slot and engaged with the bottom surface clamping protrusion, and a top clamping notch 23 formed at the top of the board slot and engaged with the top surface clamping protrusion; the inserting end part of the inserting plate with the top surface clamping convex head is an inserting plate plug and extends out from the bottom of the inserting plate, the inserting plate and the pressing cover form butt joint, splicing, installation and fixation after the inserting plate plug is inserted into the inserting plate slot, and each inserting plate plug forms fixed fastening installation corresponding to the respective inserting plate slot.

In this embodiment, the positioning raised head is in a diamond shape which is slightly inclined downwards, so that the space of the positioning cavity is gradually narrowed from outside to inside. The locating projection may also be trapezoidal in shape.

In this embodiment, the locating plate top tight metal covering between the adjacent through wires hole of metal connecting piece, the through wires hole is just facing to setting up with the threading constant head tank, the constant head tank forms the partition state with the locating plate.

In this embodiment, the slot opening of the threading positioning slot is smaller than the opening of the threading hole, as shown in fig. 14; or the notch of the threading positioning groove is larger than the orifice of the threading hole, so that the metal of the wire can easily penetrate into the threading positioning groove and reach the deepest wall surface of the threading positioning groove, namely the metal end of the wire can penetrate into the sealing surface reaching the threading positioning groove, the contact area of the metal end of the wire is increased, and the stability of wiring is improved, as shown in fig. 15. The orifice of the threading hole and the notch of the threading positioning groove are both larger than the cross section caliber of the metal end of the wire.

In this embodiment, the two sides of the insert limiting slot extend to the top to form a convex arc-shaped protruding head 24.

In this embodiment, the rear end of the gland is provided with a test port 26 for testing the power connection condition, and the test port is arranged between the threading positioning grooves.

In this embodiment, the four corners of the housing are rectangular with rounded corners after the housing and the gland are fastened.

As shown in fig. 22, 23, 24, and 25, the housing and the cover of the housing structure of embodiment 1 may also be a three-position plug-in type or a five-position plug-in type housing structure.

In this embodiment, the fixing of the plug end and the socket slot and the fixing of the socket and the socket slot can also be achieved by adhesive fixing or ultrasonic welding, as shown in fig. 26, 27, 28, 29, 30, 31, and 32.

In this embodiment, the structure of the latch assembly further comprises side latch projections 29 provided on the sides of the plug end and side latch notches 30 provided on the side slots and adapted to be latched with the side latch projections, i.e., using a top latch mounting, a bottom latch mounting and a side latch mounting, as shown in fig. 33, 34, 35, 36, 37 and 38. The fixing of the side card raised head and the side card notch by the side buckle installation can also be simply adopted.

Example 2

In this embodiment 2, a modification is made on the basis of embodiment 1, specifically as follows:

the front end of the shell and the rear end of the gland are respectively provided with a shell testing port 27 and a gland testing port 28, the positioning raised heads are triangular, so that the space of the positioning cavity is gradually narrowed from outside to inside, and the shell and the gland of the shell structure can also adopt a shell structure in a two-position wire plugging mode, a three-position wire plugging mode or a five-position wire plugging mode; as shown in fig. 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50 and 51.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical content of the present invention in any way. Any simple modification, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention all still fall within the scope of the technical solution of the present invention.

Claims

1. A shell structure of a wiring terminal is characterized by comprising a shell and a gland which are matched and fixedly installed, wherein the shell and the gland are matched and installed to form an internal cavity, a metal connecting piece which forms a wiring effect with a lead is fixed and limited in the internal cavity, and the shell and the gland are of an integrated structure; the front end of the shell is provided with at least two wire plugging ports allowing corresponding wires to be respectively plugged into the inner cavity, and the rear end of the shell is a plug end with the size smaller than the external size of the shell; the top of the shell is provided with a plug board assembly extending from the top of the wire plugging port to the rear end of the shell, the plug board assembly comprises at least two plug boards, one end of each plug board is fixedly integrated with the top of the wire plugging port, the other end of each plug board is inserted into the corresponding gland to form mounting and fixing, a cap pulling and inserting gap allowing a pulling cap of a wiring terminal to be inserted into the inner cavity is reserved between the side parts of the adjacent plug boards and between the outer side of the plug board close to the side part of the shell and the outer side part of the shell, and sliding grooves matched with rotating heads of the pulling caps are; the bottom of the wire inserting port extends towards the direction of the internal cavity to form a positioning raised head for positioning and pressing one fixed end of the elastic sheet of the metal connecting piece, a positioning cavity groove is formed by the positioning raised head and the bottom of the internal cavity, and one fixed end of the elastic sheet of the metal connecting piece is arranged in the positioning cavity groove; the inner side surface of the gland is provided with a socket groove which is matched with the plug end of the shell, the upper part in the gland is provided with an inserting sheet limiting slot for allowing a fixed inserting sheet on the top surface of the back of the metal connecting piece to be inserted, a positioning plate for tightly supporting the metal surface of the back of the metal connecting piece is arranged below the inserting sheet limiting slot in the gland, and threading positioning grooves corresponding to threading holes in the back of the metal connecting piece are formed between adjacent positioning plates and between the side surface of the gland and the outermost positioning plate; and a test port for testing the power connection condition is arranged on the shell or/and the gland.

2. A housing structure of a connection terminal according to claim 1, wherein the plug terminal is protruded in a rear direction at side and bottom surfaces of the housing and formed in a two-step shape with the side and bottom surfaces of the housing, the plug terminal of the housing being located at an inner side, the side and bottom surfaces of the housing being located at an outer side; the socket slot consists of a side slot which is matched and spliced with the side part of the plug end and a bottom slot which is matched and spliced with the bottom of the plug end; the upper part of the gland is provided with a plugboard slot matched with the plugboard insertion end; the plug end and the socket groove are fixedly arranged, and the plug board slot are fixedly arranged through bonding fixation, ultrasonic welding fixation or buckling fixation of a buckle component.

3. The structure of the shell of the connection terminal as claimed in claim 2, wherein the buckle assembly comprises a bottom surface clamping convex head which is arranged on the bottom surface of the plug end and is protruded, a top surface clamping convex head which is arranged on the top surface of the plug board and is protruded, a bottom clamping notch which is arranged on the bottom of the bottom slot and is matched and fastened with the bottom surface clamping convex head, a top clamping notch which is arranged on the top of the plug board slot and is matched and fastened with the top surface clamping convex head, and the buckle assembly further comprises a side part clamping convex head which is arranged on the side part of the plug end and a side part clamping notch which is arranged on the side slot and is matched and fastened with; the inserting end part of the inserting plate with the top surface clamping convex head is an inserting plate plug and extends out from the bottom of the inserting plate, the inserting plate and the pressing cover form butt joint, splicing, installation and fixation after the inserting plate plug is inserted into the inserting plate slot, and each inserting plate plug forms fixed fastening installation corresponding to the respective inserting plate slot.

4. A terminal housing structure as claimed in claim 3, wherein the positioning projection is triangular, trapezoidal or diamond-shaped to gradually narrow the space of the positioning cavity from outside to inside.

5. The structure of a terminal block case as claimed in claim 4, wherein the positioning plate abuts against a metal surface between adjacent threading holes of the metal connecting member, the threading holes and the threading positioning grooves are disposed facing each other, and the positioning grooves are spaced apart from each other by the positioning plate.

6. The structure of a terminal block case as claimed in claim 5, wherein the opening of the threading positioning groove is larger than or smaller than the opening of the threading hole, and both the opening of the threading hole and the opening of the threading positioning groove are larger than the cross-sectional diameter of the metal end of the wire.

7. The shell structure of a connection terminal as claimed in claim 6, wherein the insert limiting slot has two sides and a top extending with a convex arc-shaped projection.

8. The structure of claim 7, wherein the test port is formed at a rear end of the cover.

9. The structure of claim 7, wherein the front end of the housing and the rear end of the cover are respectively provided with a housing test port and a cover test port.

10. The structure of a connecting terminal housing according to any one of claims 1 to 9, wherein the housing is rectangular with rounded corners after being fitted and fastened to the cover.