Power transmission and distribution connector and power transmission and distribution connection device

Abstract

The present invention discloses a power transmission and distribution connector and a power transmission and distribution connection device, wherein the connector includes a main body and a wiring terminal arranged in the main body, the main body includes a front connector and a rear connector, wherein the wiring terminal is arranged in the front connector; the front connector and the rear connector are connected together by a connection structure, the wiring terminal is provided with a wiring portion connected to a power line at an end corresponding to the rear connector, and the rear connector is provided with a power line through hole at an end away from the front connector; when the front connector and the rear connector are not connected, the wiring portion of the wiring terminal is exposed. The power transmission and distribution connector of the present invention is very convenient to connect, and at the same time, the connection position between the power line and the wiring terminal in the connector is located inside the connector, which is convenient for sealing protection and increases safety.

Description

Technical Field

[0001] The invention relates to a connector, in particular to a power transmission and distribution connector and a power transmission and distribution connection device. Background Art

[0002] In the stage lighting industry, in order to achieve various lighting effects, an electrical cabinet is required to control multiple lights, so power distribution connectors and power distribution connection devices are often used in loop control. The power distribution connectors of traditional stage lighting include plugs and sockets. The plugs and sockets are each an integral whole, such as the "eight-core plug and socket" disclosed in the utility model patent with the authorization announcement number CN 208706936 U. This connector has the following shortcomings: During the wiring process, for the socket, the input wire must be inserted from one end of the socket into the jack terminal for a relatively long distance, which is inconvenient to wire and may cause poor contact, affecting the effect of the stage lighting. For the plug, there are also problems of inconvenient wiring and poor contact.

[0003] The utility model patent with the authorization announcement number CN 209217319 U discloses a connector, including a plug and a socket. One end of the main body of the connector socket is a power input end connected to the power distribution cabinet, and the other end is a socket that docks with the plug. The main body includes a front cover and a rear seat, and the front cover and the rear seat are connected by screws, wherein the front cover is provided with a branch terminal, the branch terminal is connected to the power column, and the rear seat is provided with an independent socket for accommodating the branch terminal; during installation, the wiring terminal on the front cover is inserted into the independent socket, and then the front cover and the rear seat are locked together by screws. Although the main body of this connector adopts a split structure, the connection position between the power column and the branch terminal is not inside the main body, which is not convenient for sealing and protecting the wiring position, and there is a safety hazard. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a power transmission and distribution connector, which is quite convenient for wiring operation. At the same time, the connection position between the power line and the wiring terminal in the connector is located inside the connector, which is convenient for sealing protection and increases safety.

[0005] Another object of the present invention is to provide a power transmission and distribution connection device.

[0006] The technical solution of the present invention to solve the above technical problems is:

[0007] A power transmission and distribution connector, comprising a main body and a wiring terminal arranged in the main body, characterized in that the main body comprises a front connector and a rear connector, wherein the wiring terminal is arranged in the front connector; the front connector and the rear connector are connected together by a connecting structure, the wiring terminal is provided with a wiring portion connected to a power line at an end corresponding to the rear connector, and the rear connector is provided with a power line through hole at an end away from the front connector; when the front connector and the rear connector are not connected, the wiring portion of the wiring terminal is exposed.

[0008] The working principle of the above power transmission and distribution connector is:

[0009] When the power cord is connected to the connector of the present invention, the front connecting body and the rear connecting body of the main body are in a separated state, and the power cord passes through the wire hole of the rear connecting body and is connected to the wiring part of the wiring terminal set in the front connecting body. Since the wiring part of the wiring terminal set inside the front connecting body is exposed to the outside and is in a visible state, the wiring process is quite convenient. After the wiring is completed, the front connecting body and the rear connecting body are connected together through the connecting structure, and the wiring position of the power cord and the wiring terminal is inside the main body, which is convenient for sealing protection and increases safety.

[0010] In a preferred embodiment of the present invention, the connection structure is a threaded connection structure.

[0011] A preferred embodiment of the present invention is that an anti-loosening structure is also provided at the connection between the front connector and the rear connector, and the anti-loosening structure includes an anti-loosening buckle, a front limiting groove arranged on the end face of the front connector, and a rear limiting groove arranged on the end face of the rear connector, the front limiting groove and the rear limiting groove correspond to each other and are connected, and the anti-loosening buckle is embedded in the front limiting groove and the rear limiting groove.

[0012] Preferably, the anti-loosening buckle includes a limiting section and a positioning section, and a receiving groove for accommodating the anti-loosening buckle is provided in the rear connecting body, the receiving groove is connected with the rear limiting groove provided in the rear connecting body, a positioning groove is provided at the bottom of the receiving groove, and a positioning portion matching the positioning groove is provided at the bottom of the positioning section.

[0013] Preferably, the positioning portion at the bottom of the positioning section includes a first positioning portion and a second positioning portion in the shape of teeth, and the top surface of the positioning section is provided with an extrusion groove for squeezing the anti-loosening buckle out of the front limiting groove and the rear limiting groove; the first positioning portion is pressed against one end of the positioning groove, and the second positioning portion is pressed against the other end of the positioning groove.

[0014] Furthermore, the side of the first positioning portion facing the corresponding end of the positioning groove is a straight edge, the side of the second positioning portion facing the corresponding end of the positioning groove is a beveled edge, and the end of the positioning groove corresponding to the beveled edge of the second positioning portion is also an inclined surface matching it.

[0015] Furthermore, a blocking protrusion is provided at the rear end of the accommodating groove to prevent the anti-loosening buckle from falling off.

[0016] In a preferred embodiment of the present invention, a waterproof structure is further provided at the connection between the front connector and the rear connector, and the waterproof structure includes an annular waterproof ring.

[0017] A preferred embodiment of the present invention is that the power transmission and distribution connector is a plug, and the wiring terminal in the front connecting body of the plug is a pin terminal, and the pin terminal includes a pin front part and a pin terminal wiring part; a wiring hole for accommodating a power cord is provided in the pin terminal wiring part, and a threaded hole for locking the power cord to the wiring hole is also provided on the pin terminal wiring part; a pin terminal fixing frame is provided in the front connecting body of the plug, and the pin terminal is installed on the pin terminal fixing frame.

[0018] In a preferred embodiment of the present invention, the pin terminal fixing frame includes a mounting portion for connecting a power cord, the mounting portion extends rearwardly beyond the rear end of the front connector of the plug, a radial opening is provided on the mounting portion, the pin terminal wiring portion is located in the opening, and the threaded hole on the pin terminal wiring portion is exposed in the opening.

[0019] Preferably, the openings corresponding to the pin terminal connection parts of the plurality of pin terminals all face the same direction.

[0020] Preferably, there are two threaded holes on the pin terminal wiring portion.

[0021] A preferred embodiment of the present invention is that the power transmission and distribution connector is a socket, and the wiring terminal in the front connecting body of the socket is a jack terminal, and the jack terminal includes a jack front portion and a jack terminal wiring portion; a wiring hole for accommodating a power cord is provided in the jack terminal wiring portion, and a threaded hole for locking the power cord to the wiring hole is also provided on the jack terminal wiring portion; a jack terminal fixing frame is provided in the front connecting body of the socket, and the jack terminal is mounted on the jack terminal fixing frame.

[0022] A preferred embodiment of the present invention, wherein the jack terminal fixing frame comprises a front mounting portion for accommodating the jack terminal and a rear mounting portion for connecting a power cord, wherein the rear mounting portion extends rearwardly beyond the rear end of the front connector of the socket, and a radial opening is provided on the rear mounting portion, the jack terminal wiring portion is located in the opening, and the threaded hole on the jack terminal wiring portion is exposed in the opening.

[0023] Preferably, the openings corresponding to the socket terminal connection parts of the plurality of socket terminals all face the same direction.

[0024] Preferably, there are two threaded holes on the jack terminal wiring part.

[0025] Preferably, the front mounting portion is provided with a front positioning step for positioning the front part of the jack of the jack terminal, the rear mounting portion is sleeved with a limit cover, the limit cover is provided with a slot connected to the opening, the rear end of the limit cover is provided with an end plate for positioning the rear end of the jack terminal, and the end plate is provided with a wire hole for allowing the power cord to pass through at a position corresponding to the jack terminal.

[0026] A preferred solution of the present invention is that a flap is provided at the front end of the front connector of the socket, a pin seat is provided on the outer wall of the front connector, the flap is hinged on the pin seat through a pin shaft, and an elastic element is provided between the pin seat and the flap to force the flap to be in a closed state.

[0027] Furthermore, the flip cover is provided with a pressing portion at one end hinged to the pin seat for pressing to open the flip cover, and the pin seat is provided with an escape groove for avoiding the pressing portion.

[0028] A power transmission and distribution connection device, characterized in that it includes a plug and a socket, wherein a hollow connecting column is provided on the front connecting body of the plug, and the front part of the pin is located in the connecting column; a connecting hole matching the connecting column is provided on the front connecting body of the socket, and the front part of the socket is located in the connecting hole; and the front part of the pin is inserted into the front part of the socket.

[0029] Preferably, an assembly guide structure is provided between the plug and the socket, the assembly guide structure comprising a guide block arranged on the outer surface of the connecting column of the plug and a guide groove arranged on the inner wall of the connecting hole of the socket, the guide block matches in the guide groove.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] 1. When wiring, the front connector and the rear connector are in a separated state, and the power line passes through the wire hole of the rear connector and is connected to the wiring terminal set in the front connector. Since the wiring part of the wiring terminal is exposed and visible, the wiring operation is quite convenient. After the wiring is completed, the front connector and the rear connector are connected through the connection structure. Since the position where the power line is connected to the wiring terminal is inside the connector of the present invention, it is convenient to seal and protect, and the safety is increased.

[0032] 2. The connector of the present invention is applicable to both plugs and sockets, and has good versatility. In particular, the structures of the rear connectors in the plug and the socket can be the same, and the interchangeability is good, which reduces the types of parts and is conducive to saving production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1-Figure 6 It is a structural schematic diagram of a first embodiment of the power transmission and distribution connector of the present invention, Figure 1 is the main view; Figure 2 It is a cross-sectional view; Figure 3 It is a stereogram from the first perspective; Figure 4 is a stereogram of the connector body in front of the plug; Figure 5 It is a stereogram of the posterior connector; Figure 6 This is a partial enlarged view of the anti-loosening structure

[0034] Figure 7-Figure 11 is a schematic structural diagram of a second embodiment of the power transmission and distribution connector of the present invention, Figure 7 is the main view; Figure 8 It is a cross-sectional view; Fig. 9 It is a stereogram from the first perspective; Fig.10 It is a stereogram from the second perspective; Fig.11 It is a three-dimensional view of the front connector of the socket.

[0035] Figure 12-14 It is a structural schematic diagram of an embodiment of the power transmission and distribution connection device of the present invention, wherein: Fig.12 For the main view, Fig.13 is a cross-sectional view, Fig.14 This is a three-dimensional diagram after the plug and socket are separated.

[0036] Fig.15 It is a schematic structural diagram of a third embodiment of the power transmission and distribution connector of the present invention.

[0037] Fig.16 , Fig.17 It is a schematic structural diagram of a fourth embodiment of the power transmission and distribution connector of the present invention, wherein Fig.16 is the main view, Fig.17 It is a right side view of the rear connector.

[0038] Among them, 1, plug; 2, socket; 3, plug front connector; 3-1, guide block; 3-2, pin terminal fixing frame; 3-3, mounting portion; 3-4, opening; 3-5, connecting column; 3-6, plug front limit groove; 4, socket front connector; 4-1, guide groove; 4-2, jack terminal fixing frame; 4-3, rear mounting portion; 4-4, pin seat; 4-5, opening; 4-6, front positioning step; 4-7, front mounting portion ; 4-8, avoidance groove; 4-9, connection hole; 5, socket front limit groove; 6, rear connector; 6-1, rear limit groove; 6-2, accommodation groove; 6-3, positioning groove; 6-4, blocking protrusion; 6-5, wire hole; 7, connection structure; 8, pin terminal; 8-1, pin front, 8-2, wiring hole; 8-3, threaded hole; 9, jack terminal; 9-1, jack front; 9-2, wiring hole; 9-3, threaded hole; 1 0, pin terminal connection part; 11, flip cover; 11-1, pressing part; 12, anti-loosening buckle; 12-1, positioning section; 12-2, limiting section; 12-3, positioning part; 12-4, first positioning part; 12-5, second positioning part; 12-6, extrusion groove; 13, waterproof ring; 13-1, annular groove; 14, clamping buckle; 14-1, trumpet-shaped through hole; 15, clamping sleeve; 16, wire sleeve; 17, anti-loosening structure; 1 8. Limiting cover; 18-1. End plate; 19. Pin; 20. Elastic element; 21. Socket terminal connection part; 22. Screw; 23. Front flange; 23-1. Front through hole; 24. Rear flange; 24-1. Rear through hole; 25-1. First pin; 25-2. Second pin; 26. First axial guide groove; 26-1. First annular guide groove; 27. Second axial guide groove; 27-1. Second annular guide groove. DETAILED DESCRIPTION

[0039] The present invention is further described in detail below in conjunction with embodiments and drawings, but the embodiments of the present invention are not limited thereto.

[0040] Example 1

[0041] See also Figure 1-Figure 6 The power transmission and distribution connector of this embodiment includes a main body and a wiring terminal arranged in the main body, the main body includes a front connector and a rear connector 6, wherein the wiring terminal is arranged in the front connector; the front connector and the rear connector 6 are connected together by a connecting structure 7, the wiring terminal is provided with a wiring portion connected to the power line at the end corresponding to the rear connector 6, and the rear connector is provided with a power line through hole 6-5 at the end away from the front connector; when the front connector and the rear connector are not connected, the wiring portion of the wiring terminal is exposed.

[0042] See also Figure 1-Figure 6The power transmission and distribution connector of this embodiment is a plug, the front connector is a plug front connector 3, the wiring terminal in the plug front connector 3 is a pin terminal 8, the pin terminal 8 includes a pin front part 8-1 and a pin terminal wiring part 10; the pin terminal wiring part 10 is provided with a wiring hole 8-2 for accommodating a power cord, and the pin terminal wiring part 10 is also provided with a threaded hole 8-3 for locking the power cord on the wiring hole 8-2; the plug front connector 3 is provided with a pin terminal fixing frame 3-2, and the pin terminal 8 is installed on the pin terminal fixing frame 3-2.

[0043] See also Figure 2 ,and Figure 4 The pin terminal fixing frame 3-2 includes a mounting portion 3-3 for connecting the power cord, the mounting portion 3-3 extends backward beyond the rear end of the plug front connector 3, and a radial opening 3-4 is provided on the mounting portion 3-3. The pin terminal connection portion 10 of the pin terminal 8 is located in the opening 3-4, and the threaded hole 8-3 on the pin terminal connection portion 10 is exposed in the opening. In the above structure, since the mounting portion 3-3 is provided with an opening, the threaded hole 8-3 of the pin terminal connection portion 10 is exposed and visible, so it is convenient to assemble the screw 22 into the threaded hole 8-3 by a screwdriver, which is convenient for wiring.

[0044] See also Figure 2 and Figure 4 There are three pin terminals 8, and the openings 3-4 corresponding to the pin terminal connection parts 10 of the pin terminal 8 are all facing the same direction. By making the openings 3-4 corresponding to the pin terminal connection parts 10 all facing the same direction, wiring can be done in only one direction, which further facilitates wiring.

[0045] See also Figure 2 The pin terminal wiring portion 10 has two threaded holes 8-3, so that the output wire and the pin terminal 8 are fixed with two screws 22, and the wiring is more secure.

[0046] See also Figure 2 The connection structure 7 is a threaded connection structure, the rear end of the front connector 3 of the plug is provided with an external thread, the front end of the rear connector 6 is provided with an internal thread corresponding to the external thread at the rear end of the front connector 3 of the plug, and the front connector 3 of the plug is connected to the rear connector 6 by threads. The threaded connection structure is not only simple to connect and operate, easy to assemble and disassemble, but also has a good sealing effect.

[0047] See also Figure 2-Figure 6A loose-proof structure 17 is also provided at the connection between the front connector 3 and the rear connector 6 of the plug. The loose-proof structure includes a loose-proof buckle 12, a front limiting groove 3-6 of the plug arranged on the end face of the front connector 3 of the plug, and a rear limiting groove 6-1 arranged on the end face of the rear connector 6. The front limiting groove 3-6 of the plug corresponds to and is connected with the rear limiting groove 6-1 of the plug. The loose-proof buckle 12 is embedded in the front limiting groove 3-6 and the rear limiting groove 6-1 of the plug. Through the above-mentioned loose-proof structure 17, the loosening of the front connector 3 and the rear connector 6 of the plug after connection can be prevented. Specifically, since the loose-proof buckle is embedded in the limiting grooves of the front connector 3 and the rear connector 6 of the plug, the front connector 3 and the rear connector 6 of the plug are restricted by the loose-proof buckle 17 and cannot rotate relative to each other, and will not loosen autonomously, thereby improving stability.

[0048] See also Figure 2 , Figure 5 ,and Figure 6 The anti-loosening buckle includes a limiting section 12-2 and a positioning section 12-1. A receiving groove 6-2 for receiving the anti-loosening buckle 12 is provided in the rear connector 6. The receiving groove 6-2 is connected to the rear limiting groove 6-1 provided in the rear connector. A positioning groove 6-3 is provided at the bottom of the receiving groove 6-2. A positioning portion 12-3 matching the positioning groove 6-3 is provided at the bottom of the positioning section 12-1. When the anti-loosening buckle 12 is embedded in the limiting grooves in the front connector 3 and the rear connector 6 of the plug, the positioning portion 12-3 is stuck in the positioning groove 6-3 at the bottom of the receiving groove 6-2. Therefore, the anti-loosening buckle is not easy to loosen, thereby limiting the relative rotation of the front connector 3 and the rear connector 6 of the plug, and playing a role in preventing loosening.

[0049] See also Figure 2 and Figure 6 The positioning portion 12-3 at the bottom of the positioning section includes a first positioning portion 12-4 and a second positioning portion 12-5 in the shape of teeth. The top surface of the positioning section 12-1 is provided with an extrusion groove 12-6 for squeezing the anti-loosening buckle out of the front limiting groove 3-6 and the rear limiting groove 6-1; the first positioning portion 12-4 is pressed against one end of the positioning groove 6-3, and the second positioning portion 12-5 is pressed against the other end of the positioning groove 6-3. The purpose of adopting the above structure is that by setting the tooth-shaped first positioning part 12-4 and the second positioning part 12-5, when the anti-loosening buckle 12 is installed in the front limit groove 3-6 and the rear limit groove 6-1 of the plug, the micro deformation of the first positioning part 12-4 and the second positioning part 12-5 under the action of the extrusion force is utilized to make it easy to embed into the positioning groove 6-3; by setting the extrusion groove 12-6, it is easy to extrude the anti-loosening buckle 12 from the front limit groove 3-6 and the rear limit groove 6-1 of the plug. During operation, the extrusion tool (such as a screwdriver) is extended into the extrusion groove 12-6 to extrude the anti-loosening buckle 12 outward.

[0050] See also Figure 5 and Figure 6, the side of the first positioning portion 12-4 facing the corresponding end of the positioning groove 6-3 is a straight edge, the side of the second positioning portion 12-5 facing the corresponding end of the positioning groove 6-3 is a beveled edge, and the end of the positioning groove 6-3 corresponding to the beveled edge of the second positioning portion is also an inclined surface matching it. In the above structure, by setting the beveled edge of the second positioning portion 12-5 and the inclined surface matching it in the positioning groove 6-3, the anti-loosening buckle 12 is convenient for guiding the positioning portion 12-3 to be embedded in the positioning groove 6-3 during installation, and is also convenient for guiding the positioning portion 12-3 to leave the positioning groove 6-3 during disassembly; setting the straight edge of the first positioning portion 12-4 is conducive to improving the positioning effect.

[0051] See also Figure 5 The rear end of the accommodating groove 6-2 is provided with a blocking protrusion 6-4 for preventing the anti-loosening buckle 12 from falling. By setting the blocking protrusion 6-4, when the anti-loosening buckle is squeezed out of the front limiting groove 3-6 of the plug, it still remains on the rear connector 6 and will not fall off.

[0052] See also Figure 2 , the connection between the front connector 3 and the rear connector 6 of the plug is also provided with a waterproof structure, and the waterproof structure includes an annular waterproof ring 13. An annular groove 13-1 is provided on the front connector 3 or the rear connector 6 of the plug. In this embodiment, the annular groove 13-1 is provided on the rear connector 6. Before the front connector 3 and the rear connector 6 are connected, the annular waterproof ring 13 is placed on the annular groove 13-1 of the rear connector 6; the above-mentioned waterproof structure plays a waterproof role when the front connector 3 and the rear connector 6 of the plug are connected, which can prevent water vapor from entering the wiring position inside the connector, increase the sealing effect, and improve safety.

[0053] See also Figure 2 The rear connector tail is also provided with a clamping structure, which includes a clamping buckle 14, a clamping sleeve 15, and a wire sleeve 16; the clamping buckle 14 is provided with an internal thread and is threadedly connected to the rear connector 6 with an external thread at the rear end. A clamping sleeve 15 is sleeved inside the clamping buckle 14, and a wire passing sleeve 16 is sleeved inside the clamping sleeve 15, and a wire passing hole is provided in the wire passing sleeve; the tail of the wire passing sleeve 16 is conically contracted, and the tail of the clamping sleeve 15 is conically contracted corresponding to the tail of the wire passing sleeve, and a trumpet-shaped through hole 14-1 is provided in the clamping buckle 14 corresponding to the conical contraction position of the tail of the clamping sleeve 15; after the power cord passes through the clamping buckle 14, the clamping sleeve 15 and the wire passing sleeve 16 and is connected to the wiring terminal, the clamping buckle 14 is threadedly connected to the rear connector 6, and in the process of tightening the clamping buckle 14, the trumpet-shaped through hole 14-1 inside the clamping buckle 14 squeezes the conically contracted tail of the clamping sleeve 15, and the clamping sleeve then squeezes the tail of the wire passing sleeve 16, thereby clamping the power cord.

[0054] See also Figure 2The tail of the compression sleeve 15 is formed in a fence shape, which not only saves materials but also makes it easier to deform and squeeze the wire sleeve 16, which is more conducive to compressing the power cord.

[0055] Example 2

[0056] The difference between this embodiment and embodiment 1 is that in this embodiment, the power transmission and distribution connector is a socket, see Figure 7-Figure 11 The connection terminal in the front connector 4 of the socket is a jack terminal 9, which includes a jack front portion 9-1 and a jack terminal connection portion 21; a connection hole 9-2 for accommodating a power cord is provided in the jack terminal connection portion 21, and a threaded hole 9-3 for locking the power cord on the connection hole 9-2 is also provided on the jack terminal connection portion 21; a jack terminal fixing frame 4-2 is provided in the front connector 4 of the socket, and the jack terminal 9 is installed on the jack terminal fixing frame 4-2.

[0057] See also Figure 8 and Fig.11 The socket terminal fixing frame 4-2 includes a front mounting portion 4-7 for accommodating the socket terminal 9 and a rear mounting portion 4-3 for connecting the power cord, wherein the rear mounting portion 4-3 extends backward beyond the rear end of the socket front connector 4, and a radial opening 4-5 is provided on the rear mounting portion 4-3. The socket terminal wiring portion 21 of the socket terminal 9 is located in the opening 4-5, and the threaded hole 9-3 on the socket terminal wiring portion 21 is exposed in the opening. In the above structure, since the rear mounting portion 4-3 is provided with an opening, the threaded hole 9-3 of the socket terminal wiring portion 21 is exposed and in a visible state, so it is convenient to assemble the screw 22 into the threaded hole 9-3 by a screwdriver, which is convenient for wiring.

[0058] See also Figure 8 and Fig.11 There are three jack terminals 9, and the openings 4-5 corresponding to the jack terminal wiring parts 21 of the jack terminal 9 are all facing the same direction; by making the openings 4-5 corresponding to the jack terminal wiring parts 21 all face the same direction, wiring only needs to be operated in one direction, which further facilitates wiring.

[0059] See also Figure 8 The number of threaded holes 9-3 of the jack terminal wiring portion 21 is two, so that the output wire and the jack terminal 9 are fixed with two screws 22, and the wiring is more secure.

[0060] See also Figure 8The front mounting portion 4-7 is provided with a front positioning step 4-6 for positioning the front portion 9-1 of the socket terminal 9, and the rear mounting portion 4-3 is sleeved with a limit cover 18, the limit cover 18 is provided with a notch connected to the opening 4-5, and the rear end of the limit cover 18 is provided with an end plate 18-1 for positioning the rear end of the socket terminal 9, and the end plate 18-1 is provided with a wire hole for the power line to pass through at a position corresponding to the socket terminal 9. Since the front positioning step 4-6 can position the front portion 9-1 of the socket, and the end plate 18-1 can position the rear end of the socket terminal 9, the socket terminal 9 cannot move in the socket terminal fixing frame 4-2, thereby improving the stability of the plug-in with the pin terminal.

[0061] See also Figure 7 , Figure 8 , Fig. 9 and Fig.10 The front end of the socket front connector 4 is provided with a flip cover 11, and a pin seat 4-4 is provided on the outer wall of the front connector. The flip cover 11 is hinged on the pin seat 4-4 through a pin shaft 19. An elastic element 20 is provided between the pin seat 4-4 and the flip cover 11 to force the flip cover to be in a closed state. The elastic element is an elastic torsion spring. By providing the flip cover 11, when the plug and the socket are not connected, under the action of the elastic element 20, the flip cover 11 is in a closed state, which can cover the socket hole and play a role of safety protection.

[0062] See also Fig.10 The flip cover 11 is provided with a pressing portion 11-1 at one end hinged to the pin seat 4-4 for pressing and opening the flip cover 11, and the pin seat 4-4 is provided with an escape groove 4-8 for avoiding the pressing portion 11-1. When in use, by pressing the pressing portion 11-1, the flip cover 11 can be rotated and opened, and during the opening process, the escape groove 4-8 plays an evasive role for the pressing portion.

[0063] Example 3

[0064] The difference between this embodiment and Embodiment 1 or 2 is that, in this embodiment, the connection structure is a flange connection structure, a front flange flange plate 23 is provided at the rear end of the front connector, a front through hole 23-1 is opened on the front flange flange plate, a rear flange flange plate 24 is provided at the front end of the rear connector, a rear through hole 24-1 is opened on the rear flange flange plate 24 corresponding to the front through hole 23-1 of the front flange flange plate, the front flange flange plate 23 and the rear flange flange plate 24 are fixedly connected by screws and nuts, specifically, the screws pass through the front through hole 23-1 of the front flange flange plate 23 and out of the rear through hole 24-1 of the rear flange flange plate 24, and then the nuts are locked, thereby connecting the front connector of the plug with the rear connector.

[0065] Example 4

[0066] The difference between this embodiment and Embodiment 1, Embodiment 2 or Embodiment 3 is that, in this embodiment, the connection structure is a pin-buckle connection structure, and the inner wall of the rear connector is provided with a first axial guide groove 26 and a second axial guide groove 27; the end of the first axial guide groove 26 is provided with a first annular guide groove 26-1 along one direction, and the end of the second axial guide groove 27 is provided with a second annular guide groove 27-1 along another direction; the first annular guide groove 26-1 is connected to the first axial guide groove 26, and the second annular guide groove 27-1 is connected to the second axial guide groove 27; the outer wall of the front connector is provided with a first pin shaft 25-1 corresponding to the first axial guide groove 26 and a second pin shaft 25-2 corresponding to the second axial guide groove 27. When the front connector is connected to the rear connector, the first pin 25-1 is matched with the first axial guide groove 26, and the second pin 25-2 is matched with the second axial guide groove 27. The front connector is inserted into the rear connector, and the first pin 25-1 and the second pin 25-2 reach the first annular guide groove 26-1 and the second annular guide groove 27-1. The front connector is rotated until the first pin 25-1 comes to the end of the first annular guide groove 26-1 and is clamped. Since the first annular guide groove 26-1 and the second annular guide groove 27-1 are in opposite directions, the second pin 25-2 also comes to the end of the second annular guide groove 27-1 and is clamped, thereby clamping and connecting the front connector and the rear connector.

[0067] Example 5

[0068] The difference between this embodiment and Embodiment 1, Embodiment 2, Embodiment 3 or Embodiment 4 is that, in this embodiment, the connection structure can also be a snap-on connection structure, which includes a snap-on, a snap-on base arranged on the front connector of the plug, a pin shaft and a hook arranged on the rear connector, one end of the snap-on is hinged on the pin shaft, and the pin shaft is mounted on the snap-on base of the front connector of the plug, a hollow connecting column is provided at the rear end of the front connector of the plug, and a connecting hole matching the hollow connecting column is provided at the front end of the rear connector; after the hollow connecting column is inserted into the connecting hole, the other end of the snap-on is snapped onto the hook of the rear connector, thereby connecting the front connector of the plug with the rear connector.

[0069] Example 6

[0070] This embodiment is a power transmission and distribution connection device, including the plug described in Embodiment 1 and the socket described in Embodiment 2. Fig.12 , Fig.13 , Fig.14The plug front connector 3 is provided with a hollow connecting column 3-5, and the pin front part 8-1 of the pin terminal 8 is located in the connecting column 3-5; the socket front connector 4 is provided with a connecting hole 4-9 matching the connecting column 3-5, and the socket front part 9-1 of the socket terminal 9 is located in the connecting hole 4-9; the pin front part 8-1 of the pin terminal 8 is inserted into the socket front part 9-1 of the socket terminal 9.

[0071] See also Fig.14 An assembly guide structure is provided between the plug 1 and the socket 2, and the assembly guide structure includes a guide block 3-1 provided on the outer surface of the connection column 3-5 of the plug 1 and a guide groove 4-1 provided on the inner wall of the connection hole 4-9 of the socket 2, and the guide block 3-1 is matched in the guide groove 4-1. By providing the above-mentioned assembly guide structure, the plug 1 and the socket 2 can be accurately assembled during assembly.

[0072] The above is a preferred embodiment of the present invention, but the embodiment of the present invention is not limited to the above content. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A power transmission and distribution connector, comprising a main body and a terminal disposed in the main body, characterized in that: The main body comprises a front connector and a rear connector, wherein the connection terminal is arranged in the front connector; the front connector and the rear connector are connected together by a connection structure, the connection terminal is provided with a connection portion connected to a power line at one end corresponding to the rear connector, and the rear connector is provided with a power line through hole at one end away from the front connector; when the front connector and the rear connector are not connected, the connection portion of the connection terminal is exposed; The connection between the front connector and the rear connector is also provided with an anti-loosening structure, which includes an anti-loosening buckle, a front limiting groove arranged on the end face of the front connector, and a rear limiting groove arranged on the end face of the rear connector, the front limiting groove and the rear limiting groove are corresponding in position and connected, and the anti-loosening buckle is embedded in the front limiting groove and the rear limiting groove; The anti-loosening buckle includes a limiting section and a positioning section. The rear connecting body is provided with a receiving groove for accommodating the anti-loosening buckle, the receiving groove is communicated with the rear limiting groove arranged on the rear connecting body, a positioning groove is provided at the bottom of the receiving groove, and a positioning portion matching the positioning groove is provided at the bottom of the positioning section; The positioning portion at the bottom of the positioning section includes a first positioning portion and a second positioning portion in the shape of teeth, and the top surface of the positioning section is provided with an extrusion groove for squeezing the anti-loosening buckle out of the front limiting groove and the rear limiting groove; the first positioning portion is pressed against one end of the positioning groove, and the second positioning portion is pressed against the other end of the positioning groove; the side of the first positioning portion facing the corresponding end of the positioning groove is a straight edge, and the side of the second positioning portion facing the corresponding end of the positioning groove is a beveled edge, and the end of the positioning groove corresponding to the beveled edge of the second positioning portion is also an inclined surface matching it; the rear end of the accommodating groove is provided with a blocking protrusion for preventing the anti-loosening buckle from falling.

2. The power transmission and distribution connector according to claim 1, characterized in that: The connection structure is a threaded connection structure.

3. The power transmission and distribution connector according to claim 1, characterized in that: A waterproof structure is also provided at the connection between the front connecting body and the rear connecting body, and the waterproof structure includes an annular waterproof ring.

4. The power transmission and distribution connector according to claim 1, characterized in that: The power transmission and distribution connector is a plug, and the wiring terminal in the front connecting body of the plug is a pin terminal, and the pin terminal includes a pin front part and a pin terminal wiring part; a wiring hole for accommodating a power cord is provided in the pin terminal wiring part, and a threaded hole for locking the power cord on the wiring hole is also provided on the pin terminal wiring part; a pin terminal fixing frame is provided in the front connecting body of the plug, and the pin terminal is installed on the pin terminal fixing frame.

5. The power transmission and distribution connector according to claim 4, characterized in that: The pin terminal fixing frame includes a mounting portion for connecting a power cord, the mounting portion extends backward beyond the rear end of the front connector of the plug, and a radial opening is provided on the mounting portion. The pin terminal wiring portion is located in the opening, and the threaded hole on the pin terminal wiring portion is exposed in the opening; the openings corresponding to the pin terminal wiring portions of multiple pin terminals are all facing the same direction, and there are two threaded holes on the pin terminal wiring portion.

6. The power transmission and distribution connector according to claim 1, characterized in that: The power transmission and distribution connector is a socket, and the wiring terminal in the front connecting body of the socket is a jack terminal, and the jack terminal includes a jack front part and a jack terminal wiring part; a wiring hole for accommodating a power cord is provided in the jack terminal wiring part, and a threaded hole for locking the power cord on the wiring hole is also provided on the jack terminal wiring part; a jack terminal fixing frame is provided in the front connecting body of the socket, and the jack terminal is installed on the jack terminal fixing frame.

7. The power transmission and distribution connector according to claim 6, characterized in that: The jack terminal fixing frame includes a front mounting portion for accommodating the jack terminal and a rear mounting portion for connecting a power cord, wherein the rear mounting portion extends rearwardly beyond the rear end of the front connector of the socket, and a radial opening is provided on the rear mounting portion, the jack terminal wiring portion is located in the opening, and the threaded holes on the jack terminal wiring portion are exposed in the opening; the openings corresponding to the jack terminal wiring portions of multiple jack terminals are all facing the same direction, and there are two threaded holes on the jack terminal wiring portion.

8. A power transmission and distribution connection device, characterized in that: It comprises the plug as claimed in claim 4 or 5 and the socket as claimed in claim 6 or 7, wherein a hollow connecting column is provided on the front connecting body of the plug, and the front part of the pin is located in the connecting column; a connecting hole matching the connecting column is provided on the front connecting body of the socket, and the front part of the socket is located in the connecting hole; and the front part of the pin is inserted into the front part of the socket.

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