Insulation type quick plug for large current

Abstract

The invention belongs to the technical field of high-current electrical equipment, and particularly relates to an insulated quick plug for high current, which comprises a plug body, the plug body comprises a U-shaped socket and a U-shaped insertion piece, and the U-shaped socket and the U-shaped insertion piece are both sleeved with an insulated shell; and the mounting assembly is used for fixing the U-shaped socket and the U-shaped insertion piece, the mounting assembly comprises a U-shaped mounting seat, and a first mounting hole is formed in the lower wall of the U-shaped mounting seat. According to the invention, through the arrangement of the installation assembly, during installation, the U-shaped socket and the U-shaped insertion piece are electrically connected with the two large-current electrical equipment respectively, the U-shaped insertion piece is inserted between the upper wall and the lower wall of the U-shaped socket, and the pressing plate is pressed to drive the locking cam to rotate, so that the U-shaped socket can be pressed and fixed through the locking cam, and the U-shaped insertion piece cannot be pulled out of the U-shaped socket; rapid connection between the U-shaped socket and the U-shaped insertion sheet is realized, and rapid installation between two large-current electrical equipment is further realized.

Description

Technical Field

[0001] The present invention belongs to the technical field of high - current electrical equipment, and particularly relates to an insulated quick - plug - in head for high current. Background Art

[0002] High - current electrical equipment refers to electrical equipment that needs to transmit or carry a large current. These equipment are usually designed to carry hundreds of amperes or even thousands of amperes of current and operate in a high - power range. They are commonly used in generator sets for power generation and power transmission to the power grid, as well as high - voltage switchgear, transformers, etc. for power distribution and transformation.

[0003] These equipment usually need to work with a relatively high current intensity. Therefore, when connecting, disconnecting, and maintaining them, it is necessary to ensure the stable transmission of current and operation safety. However, the traditional connection and disconnection methods often have the following technical problems: During installation, the connection and disassembly of high - current electrical equipment usually require many steps. For example, when connecting, after the operator inserts it, it is necessary to manually adjust components such as locking screws, locking columns, or locking cams to ensure a firm connection. This process usually requires multiple rotations and adjustments, increasing the operation time and complexity and greatly reducing the work efficiency. The traditional connection method between sockets and inserts is prone to generating a large frictional force. Especially during the plug - in and unplug - in process, too large a frictional force between the insert and the socket will cause difficulty in plug - in and unplug - in, and even jamming may occur. This not only increases the operation difficulty, but also may damage the equipment under high - intensity use conditions, thus affecting the stability and service life of the equipment. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems raised in the above - mentioned background art, and provide an insulated quick - plug - in head for high current that can achieve the quick connection between a U - shaped socket and a U - shaped insert, and thus achieve the quick installation between two high - current electrical equipment.

[0005] To achieve the above - mentioned purpose, the present invention adopts the following technical solutions: An insulated quick - plug - in head for high current, comprising: A plug - in head body, the plug - in head body includes a U - shaped socket and a U - shaped insert, and insulating shells are sleeved outside the U - shaped socket and the U - shaped insert; An installation component for fixing a U-shaped socket and a U-shaped insert. The installation component includes a U-shaped mounting base. A first mounting hole is provided on the lower wall of the U-shaped mounting base. A first locking column is inserted into the first mounting hole. The first locking column includes a limiting bolt column, a limiting threaded column, and a limiting block. The limiting bolt column is located below the U-shaped mounting base. The limiting threaded column is fixedly connected to the upper end of the limiting bolt column. Second mounting holes are provided on both the upper and lower walls of the U-shaped socket. And the limiting threaded column extends above the U-shaped mounting base through the first mounting hole and the second mounting hole. The limiting block is fixedly connected to the upper end of the limiting threaded column. And a third mounting hole is provided on the limiting block. Fourth mounting holes are provided on both side walls of the U-shaped mounting base. A second locking column is inserted into the third mounting hole and the fourth mounting hole. A locking cam is rotatably sleeved on the first locking column; The U-shaped socket and the U-shaped insert are electrically connected through a contact member.

[0006] Preferably, a plugging hole is provided on the locking cam. And an empty groove is provided at the position of the locking cam and the limiting block to avoid interference in the installation between the locking cam and the limiting block.

[0007] Preferably, a pressing plate is fixedly connected to the upper end of the locking cam.

[0008] Preferably, both the insulating housing and the pressing plate are made of rubber material to isolate high voltage to prevent electric shock and short circuit.

[0009] Preferably, the top walls of both the U-shaped socket and the U-shaped insert are thinned by 5 mm.

[0010] Preferably, an automatic ejection mechanism is further provided in the U-shaped socket for automatically ejecting the U-shaped insert during disassembly. The automatic ejection mechanism includes a push plate slidably connected between the upper and lower inner walls of the U-shaped socket. A plurality of ejection springs are provided between the push plate and the inner side wall of the U-shaped socket.

[0011] Preferably, a lubricating mechanism controlled by the automatic ejection mechanism is further provided on one outer wall of the U-shaped socket for lubricating the U-shaped socket and the U-shaped insert during each installation process. The lubricating mechanism includes a storage box fixedly connected to one outer wall of the U-shaped socket. A storage cavity and a suction cavity are provided inside the storage box. A conveying channel communicates between the storage cavity and the suction cavity. A discharge pipe is embedded in both the storage box and the U-shaped socket. One end of the discharge pipe communicates with the suction cavity, and the other end communicates with the space between the upper and lower walls of the U-shaped mounting base. A piston block is sealingly slidably connected in the suction cavity. A push rod is fixedly connected between the piston block and the push plate. The push rod is sealingly slidably connected to the U-shaped socket and the storage box.

[0012] Preferably, one-way valves are provided in both the conveying channel and the discharge pipe.

[0013] Compared with the existing technology, the advantages of the present insulating quick plug for high current are as follows: 1. By setting up the installation component, before installation, the first locking column is inserted into the U-shaped mounting seat through the first mounting hole, then the U-shaped socket is installed on the U-shaped mounting seat, and then the second locking column is inserted into the third mounting hole, the fourth mounting hole and the insertion hole. During installation, the U-shaped socket and the U-shaped insert are electrically connected to two high-current electrical equipment respectively. The U-shaped insert is inserted between the upper and lower walls of the U-shaped socket, and the pressing plate is pressed to drive the locking cam to rotate, so that the U-shaped socket can be pressed and fixed by the locking cam, making the U-shaped insert unable to be pulled out of the U-shaped socket, realizing the quick connection between the U-shaped socket and the U-shaped insert, and further realizing the quick installation between two high-current electrical equipment, enabling the operator to quickly and conveniently plug and unplug between high-current electrical equipment, greatly improving the work efficiency.

[0014] 2. By setting up the automatic ejection mechanism, when it is necessary to disassemble the high-current electrical equipment, only need to pull the pressing plate to make the locking cam rotate in the reverse direction, then the push plate can be automatically ejected under the elastic force of the ejection spring, and the U-shaped insert can be pushed to automatically pop out of the U-shaped socket by the push plate, further improving the convenience of plugging and unplugging.

[0015] 3. By setting up the lubrication mechanism, during the process of each U-shaped insert being pulled out of the U-shaped socket, the movement of the push plate under the elastic force of the ejection spring can discharge the lubricating oil in the suction cavity to the installation position between the U-shaped insert and the U-shaped socket through the discharge pipe, reducing the friction between the U-shaped insert and the U-shaped socket, avoiding the situation of jamming between the U-shaped insert and the U-shaped socket, and improving the work efficiency of quick plugging and unplugging. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a three-dimensional structural schematic diagram of the insulating quick plug for high current provided by the present invention; Figure 2 is a three-dimensional structural schematic diagram after the installation of the insulating quick plug for high current provided by the present invention; Figure 3 is an exploded structural schematic diagram of the insulating quick plug for high current provided by the present invention; Figure 4 is a sectional structural schematic diagram at the storage box of the insulating quick plug for high current provided by the present invention; Figure 5 is in the present invention Figure 4 is an enlarged view of part A in

[0017] In the figure: 1. Plug body; 11. U-shaped socket; 12. U-shaped insert; 2. Mounting components; 21. U-shaped mounting base; 22. First mounting hole; 23. First locking column; 231. Limit bolt column; 232. Limit threaded column; 233. Limit block; 24. Second mounting hole; 25. Third mounting hole; 26. Fourth mounting hole; 27. Second locking column; 28. Locking cam; 281. Insertion hole; 282. Empty slot; 3. Pressure plate; 4. Automatic ejection mechanism; 41. Push plate; 42. Ejection spring; 5. Lubrication mechanism; 51. Storage tank; 52. Storage cavity; 53. Suction cavity; 54. Delivery channel; 55. Discharge pipe; 56. Piston block; 57. Push rod. Specific implementation mode

[0018] The following embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0019] Embodiment: Refer to Figures 1 to 5 , an insulating quick plug and socket for high current, comprising: The plug and socket body 1, the plug and socket body 1 includes a U-shaped socket 11 and a U-shaped insert 12, and insulating shells are sleeved outside the U-shaped socket 11 and the U-shaped insert 12; Mounting components 2, used to fix the U-shaped socket 11 and the U-shaped insert 12, the mounting components 2 include a U-shaped mounting base 21, a first mounting hole 22 is opened on the lower wall of the U-shaped mounting base 21, a first locking column 23 is inserted into the first mounting hole 22, the first locking column 23 includes a limit bolt column 231, a limit threaded column 232 and a limit block 233, the limit bolt column 231 is located below the U-shaped mounting base 21, the limit threaded column 232 is fixedly connected to the upper end of the limit bolt column 231, second mounting holes 24 are opened on the upper and lower walls of the U-shaped socket 11, and the limit threaded column 232 extends above the U-shaped mounting base 21 through the first mounting hole 22 and the second mounting hole 24, the limit block 233 is fixedly connected to the upper end of the limit threaded column 232, and a third mounting hole 25 is opened on the limit block 233, fourth mounting holes 26 are opened on both side walls of the U-shaped mounting base 21, a second locking column 27 is inserted into the third mounting hole 25 and the fourth mounting hole 26, and a locking cam 28 is rotatably sleeved on the first locking column 23; The U-shaped socket 11 and the U-shaped insert 12 are electrically connected through contact parts.

[0020] Specifically, an insertion hole 281 is opened on the locking cam 28, and an empty slot 282 is opened at the position of the locking cam 28 and the limit block 233 to avoid interference in the installation between the locking cam 28 and the limit block 233.

[0021] Specifically, a pressure plate 3 is fixedly connected to the upper end of the locking cam 28.

[0022] Specifically, both the insulating housing and the pressure plate 3 are made of rubber material, which is used to isolate high voltage to prevent electric shock and short circuit, ensure the insulated installation of large current electrical equipment, and avoid the occurrence of safety accidents.

[0023] Specifically, the top walls of the U-shaped socket 11 and the U-shaped insert 12 are thinned by 5 mm to ensure that the locking cam 28 can better clamp and fix the U-shaped socket 11.

[0024] In view of the problem in the prior art that during connection, the operator needs to manually adjust components such as locking screws, locking posts or locking cams after insertion to ensure firm connection. This process usually requires multiple rotations and adjustments, increasing the operation time and complexity and greatly reducing the work efficiency. The present invention solves this problem by providing an installation assembly 2. Before installation, the first locking post 23 is inserted into the U-shaped mounting seat 21 through the first mounting hole 22. Then, the second mounting hole 24 of the U-shaped socket 11 is aligned with the first locking post 23 and installed on the U-shaped mounting seat 21. Then, the locking cam 28 is placed inside the U-shaped mounting seat 21 so that the insertion hole 281 on the locking cam 28, the third mounting hole 25 on the limiting block 233, and the fourth mounting hole 26 on the U-shaped mounting seat 21 are horizontally aligned. The second locking post 27 is inserted into the third mounting hole 25, the fourth mounting hole 26, and the insertion hole 281. During installation, the U-shaped socket 11 and the U-shaped insert 12 are respectively electrically connected to two large current electrical equipment. The U-shaped insert 12 is inserted between the upper and lower walls of the U-shaped socket 11, and the notch in the middle of the U-shaped insert 12 is fitted to the limiting threaded post 232. Then, the pressure plate 3 is pressed to drive the locking cam 28 to rotate, and the U-shaped socket 11 can be pressed and fixed by the locking cam 28, so that the U-shaped insert 12 cannot be pulled out of the U-shaped socket 11, realizing the quick connection between the U-shaped socket 11 and the U-shaped insert 12, and further realizing the quick installation between two large current electrical equipment, enabling the operator to quickly and conveniently plug and unplug between large current electrical equipment, and greatly improving the work efficiency.

[0025] An automatic ejection mechanism 4 is further provided inside the U-shaped socket 11 for automatically ejecting the U-shaped insert 12 during disassembly. The automatic ejection mechanism 4 includes a push plate 41 slidably connected between the upper and lower inner walls of the U-shaped socket 11, and a plurality of ejection springs 42 are provided between the push plate 41 and the inner side wall of the U-shaped socket 11.

[0026] It is worth mentioning that by providing the automatic ejection mechanism 4, when it is necessary to disassemble the large current electrical equipment, only the pressure plate 3 needs to be pulled to reverse the rotation of the locking cam 28, and then the push plate 41 can be automatically ejected under the elastic force of the ejection springs 42, and the U-shaped insert 12 is pushed out of the U-shaped socket 11 by the push plate, further improving the convenience of plugging and unplugging.

[0027] On one outer wall of the U-shaped socket 11, there is also a lubricating mechanism 5 controlled by the automatic ejection mechanism 4, which is used to lubricate the U-shaped socket 11 and the U-shaped insert 12 during each installation process. The lubricating mechanism 5 includes a storage tank 51 fixedly connected to one outer wall of the U-shaped socket 11. Inside the storage tank 51, there are a storage chamber 52 and a suction chamber 53. A delivery channel 54 communicates between the storage chamber 52 and the suction chamber 53. A discharge pipe 55 is embedded in the storage tank 51 and the U-shaped socket 11. One end of the discharge pipe 55 communicates with the suction chamber 53, and the other end communicates with the space between the upper and lower walls of the U-shaped mounting base 21. A piston block 56 is sealingly and slidably connected in the suction chamber 53. A push rod 57 is fixedly connected between the piston block 56 and the push plate 41. The push rod 57 is sealingly and slidably connected to the U-shaped socket 11 and the storage tank 51.

[0028] Specifically, check valves are provided in both the delivery channel 54 and the discharge pipe 55. The setting of the check valves enables the piston block 56 to only pump the lubricating oil in the storage chamber 52 into the suction chamber 53 when moving in the suction chamber 53, and only pump the lubricating liquid in the suction chamber 53 out through the discharge pipe 55, avoiding the backflow of the lubricating liquid and ensuring the lubrication effect between the U-shaped socket 11 and the U-shaped insert 12.

[0029] Aiming at the problem that the traditional connection method between sockets and inserts in the prior art is prone to generate relatively large frictional forces. Especially during the insertion and extraction process, excessive frictional force between the insert and the socket can lead to difficult insertion and extraction, and even possible jamming. In the present invention, by setting the lubricating mechanism 5, during the process of each insertion of the U-shaped insert 12 into the U-shaped socket 11, the push of the U-shaped insert 12 on the push plate 41 can push the piston block 56 to move in the suction chamber 53, thereby pumping the lubricating oil in the storage chamber 52 into the suction chamber 53 through the delivery channel 54. And during the process of each extraction of the U-shaped insert 12 from the U-shaped socket 11, the movement of the push plate 41 under the elastic force of the push-out spring 42 can discharge the lubricating oil in the suction chamber 53 through the discharge pipe 55 to the installation position between the U-shaped insert 12 and the U-shaped socket 11, reducing the frictional force between the U-shaped insert 12 and the U-shaped socket 11, thereby reducing the difficulty of extracting the U-shaped insert 12 from the U-shaped socket 11, avoiding the jamming between the U-shaped insert 12 and the U-shaped socket 11, and improving the working efficiency of quick insertion and extraction.

[0030] The functional principle of the present invention can be elaborated through the following operation methods: Insert the first locking post 23 into the U-shaped mounting base 21 through the first mounting hole 22. Then, align the second mounting hole 24 of the U-shaped socket 11 with the first locking post 23 and install it on the U-shaped mounting base 21. Next, place the locking cam 28 inside the U-shaped mounting base 21 so that the insertion hole 281 on the locking cam 28, the third mounting hole 25 on the limiting block 233, and the fourth mounting hole 26 on the U-shaped mounting base 21 are horizontally aligned. Insert the second locking post 27 into the third mounting hole 25, the fourth mounting hole 26, and the insertion hole 281. During installation, the U-shaped socket 11 and the U-shaped insert 12 are respectively electrically connected to two high-current electrical devices. Insert the U-shaped insert 12 between the upper and lower walls of the U-shaped socket 11 so that the notch in the middle of the U-shaped insert 12 fits against the limiting threaded post 232. Then, press the pressing plate 3 to drive the locking cam 28 to rotate, and the U-shaped socket 11 can be pressed and fixed by the locking cam 28, preventing the U-shaped insert 12 from being pulled out of the U-shaped socket 11, thus realizing the quick connection between the U-shaped socket 11 and the U-shaped insert 12. When it is necessary to disassemble the high-current electrical device, just pull the pressing plate 3 to make the locking cam 28 rotate in the reverse direction. Then, under the elastic force of the pushing spring 42, the push plate 41 will be automatically pushed out, and the U-shaped insert 12 will be automatically ejected from the U-shaped socket 11 by the push of the push plate.

[0031] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims

1. An insulated quick-disconnect plug for high current, characterized in that: include: A plug head body (1), the plug head body (1) comprising a U-shaped socket (11) and a U-shaped plug piece (12), the U-shaped socket (11) and the U-shaped plug piece (12) both being provided with an insulating shell on the outside; The mounting assembly (2) is used to fix the U-shaped socket (11) and the U-shaped insert (12), the mounting assembly (2) comprising a U-shaped mounting seat (21), the lower wall of the U-shaped mounting seat (21) being provided with a first mounting hole (22), a first locking column (23) being inserted into the first mounting hole (22), the first locking column (23) comprising a limiting bolt column (231), a limiting thread column (232) and a limiting block (233), the limiting bolt column (231) being located below the U-shaped mounting seat (21), the limiting thread column (232) being fixedly connected to the upper end of the limiting bolt column (231), and the U-shaped socket (11) The upper and lower walls of the U-shaped mounting seat (21) are both provided with second mounting holes (24), and the limiting threaded column (232) extends to the top of the U-shaped mounting seat (21) through the first mounting hole (22) and the second mounting hole (24), the limiting block (233) is fixedly connected to the upper end of the limiting threaded column (232), and the limiting block (233) is provided with a third mounting hole (25), and the two side walls of the U-shaped mounting seat (21) are both provided with fourth mounting holes (26), and the third mounting holes (25) and the fourth mounting holes (26) are inserted with second locking columns (27), and the first locking column (23) is rotatably provided with a locking cam (28); The U-shaped socket (11) and the U-shaped plug (12) are electrically connected via a contact piece.

2. The insulated quick-disconnect plug for large current according to claim 1, characterized in that: The locking cam (28) is provided with a plug hole (281), and an empty slot (282) is provided between the locking cam (28) and the limit block (233) to avoid interference in the installation between the locking cam (28) and the limit block (233).

3. The insulated quick-disconnect plug for large current according to claim 1, characterized in that: The upper end of the locking cam (28) is fixedly connected to a pressure plate (3).

4. The insulated quick-disconnect plug for large current according to claim 1, characterized in that: The insulating shell and the pressing plate (3) are both made of rubber material and are used to isolate high voltage to prevent electric shock and short circuit.

5. The insulated quick-disconnect plug for large current according to claim 1, characterized in that: The top wall of the U-shaped socket (11) and the top wall of the U-shaped insert (12) are both thinned by 5 mm.

6. The insulated quick-disconnect plug for large current according to claim 1, characterized in that: The U-shaped socket (11) is also provided with an automatic ejection mechanism (4) for automatically ejecting the U-shaped insert (12) when disassembling. The automatic ejection mechanism (4) comprises a push plate (41) slidably connected between the upper and lower inner walls of the U-shaped socket (11). A plurality of ejection springs (42) are provided between the push plate (41) and the inner wall of the U-shaped socket (11).

7. The insulated quick-disconnect plug for large current according to claim 6, characterized in that: A lubrication mechanism (5) controlled by the automatic ejection mechanism (4) is also provided on an outer wall of one side of the U-shaped socket (11) for lubricating the U-shaped socket (11) and the U-shaped insert (12) during each installation process, wherein the lubrication mechanism (5) comprises a storage box (51) fixedly connected to an outer wall of one side of the U-shaped socket (11), wherein a storage chamber (52) and a suction chamber (53) are provided inside the storage box (51), and a conveying channel is connected between the storage chamber (52) and the suction chamber (53). (54), a discharge pipe (55) is embedded in the storage box (51) and the U-shaped socket (11), one end of the discharge pipe (55) is connected to the suction chamber (53), and the other end is connected to the space between the upper and lower walls of the U-shaped mounting seat (21), a piston block (56) is sealingly slidably connected in the suction chamber (53), a push rod (57) is fixedly connected between the piston block (56) and the push plate (41), and the push rod (57) is sealingly slidably connected to the U-shaped socket (11) and the storage box (51).

8. The insulated quick-disconnect plug for large current according to claim 7, characterized in that: Both the delivery channel (54) and the discharge pipe (55) are provided with a one-way valve.

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