Walking stick type low-voltage quick connection terminal

Abstract

The utility model relates to the technical field of cable joints, and discloses a walking stick type low-voltage quick connection terminal, which comprises a flange connecting seat, a terminal cable and a U-shaped intermediate joint which are arranged in a low-voltage cabinet, the flange connecting base comprises a red copper female base and a flange shell arranged outside the red copper female base in a sleeving mode. The middle joint is a metal piece which is bent into a U shape, a male head metal insertion column is formed on one side of the middle joint, a female head metal insertion groove end is formed on the other side of the middle joint, and a first insertion piece which can be connected with the insulating rod is installed outside the female head metal insertion groove end; and a second connector matched with the first connector is mounted at the end of the terminal cable. When low-voltage equipment is connected with a terminal cable, if the walking stick type low-voltage quick connection terminal is adopted, an operator can perform terminal cable hooking operation of a low-voltage cabinet on the ground by using an insulating operating rod without climbing; in addition, the gravity direction of the terminal cable is along the vertical direction of the joint, so that the service life of the joint can be effectively prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of cable joints, and particularly relates to a crutch-shaped low-voltage quick-connection terminal. Background Art

[0002] At present, for the convenience of maintenance or temporary power use, quick connectors are adopted for 0.4kV low-voltage equipment at home and abroad to complete the connection between electrical equipment. The connection method of conventional low-voltage quick connectors is direct-action plug-and-play connection. The cable plug-in joint of the currently designed low-voltage cabinet is a direct-action plug-and-play structure. When the low-voltage cabinet is at a high place, manual climbing is required for plugging and unplugging, which greatly increases the docking difficulty. At the same time, the weight of the cable causes the joint to bear a large horizontal weight load, affecting the service life of the joint. Summary of the Utility Model

[0003] To solve the above problems, the utility model provides a crutch-shaped low-voltage quick-connection terminal.

[0004] The technical solution adopted by the utility model is as follows:

[0005] A crutch-shaped low-voltage quick-connection terminal, which includes a flange connection seat installed in a low-voltage cabinet, a terminal cable, and an intermediate joint integrally in a U shape;

[0006] The flange connection seat includes a copper mother seat and a flange outer shell sleeved outside the copper mother seat. The flange outer shell is fixedly installed on the low-voltage cabinet, and the copper mother seat is electrically connected to electrical equipment in the low-voltage cabinet; the intermediate joint is a metal part bent into a U shape. The middle section of the U-shaped metal part is wrapped with a terminal insulating layer. A male metal plug post is formed on one side, and a female metal socket end is formed on the other side. And a first plug-in part capable of being connected to an insulating rod is installed outside the female metal socket end; a second plug-in part matching with the first plug-in part is installed at the end of the terminal cable.

[0007] The intermediate joint is inserted into the metal end of the terminal cable through its female metal socket end, and the insertion is limited by the second plug-in part matching with the first plug-in part. It is inserted into the copper mother seat of the flange connection seat through the male metal plug post; the flange connection seat, the intermediate joint, and the plug-in parts outside the ends of the intermediate joint and the terminal cable form an integral crutch-shaped low-voltage quick-connection terminal.

[0008] Further, the flange outer shell of the flange connection seat includes a nylon sleeve sleeved outside the copper mother seat and a mounting flange base integrally formed at the bottom of the nylon sleeve; through holes are provided on the mounting flange base, and it is fixedly connected to the low-voltage cabinet through bolts.

[0009] Furthermore, the red copper female base is a cylindrical structure passing through the nylon sleeve and the flange base, with a slot formed inside for fitting the metal plug post, and a wiring connection hole formed at the bottom for fitting and electrically connecting to the electrical equipment inside the low-voltage cabinet.

[0010] Furthermore, an annular strap finger is installed in the slot of the red copper female base.

[0011] Furthermore, a plurality of strap fingers capable of contacting the terminal cable end are installed inside the female head metal slot end of the U-shaped intermediate joint.

[0012] Furthermore, the first plug-in connection member includes a fixed seat and a connecting seat. The fixed seat is fixedly sleeved and connected to the female head metal slot end. The connecting seat is a tubular structure, one end of which is fixedly connected to the fixed seat. A gap space is formed between the inner wall of the connecting seat and the outer wall of the female head metal slot end, and a plug-in positioning assembly is installed outside the connecting seat.

[0013] Furthermore, the plug-in positioning assembly includes a sliding sleeve slidably sleeved outside the connecting seat through a spring, and positioning steel balls installed on the pipe wall of the connecting seat. A groove for fitting the outward movement of the positioning steel balls is formed on the inner surface of the sliding sleeve.

[0014] Furthermore, a butting block is arranged in the gap space between the inner wall of the connecting seat and the outer wall of the female head metal slot end. The butting block is installed in the gap space through a butting spring. A first positioning groove for fitting the positioning steel balls is arranged on the butting block.

[0015] Furthermore, the second connector is a cylindrical structure installed at the terminal cable end, which can be inserted into the gap space and contact the butting block, and a second positioning groove for fitting the positioning steel balls is arranged on its outer part.

[0016] Furthermore, the fixed seat is provided with a through hole for fitting and connecting with an insulating operating rod.

[0017] The beneficial effects of the present utility model are as follows:

[0018] When connecting the low-voltage equipment to the terminal cable, if this crutch-shaped low-voltage quick connection terminal is adopted, the operator does not need to climb high, and can perform the hanging operation of the terminal cable of the low-voltage cabinet on the ground with an insulating operating rod, which is convenient and reliable. In addition, after the terminal cable of the low-voltage equipment is transferred through this crutch-shaped low-voltage quick connection terminal, the gravity direction of the terminal cable is along the vertical direction of the joint, which can effectively improve the service life of the joint. Description of the Drawings

[0019] To more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0020] Figure 1 Schematic diagram of the usage state of the crutch-shaped low-voltage quick-connection terminal of the present utility model;

[0021] Figure 2 Schematic diagram of the split structure of the crutch-shaped low-voltage quick-connection terminal of the present utility model;

[0022] Figure 3 Schematic diagram of the internal structure of the flange connection seat of the present utility model;

[0023] Figure 4 Schematic diagram of the internal structure of the intermediate joint of the present utility model;

[0024] Figure 5 Schematic diagram of the installation of the crutch-shaped low-voltage quick-connection terminal of the present utility model;

[0025] Figure 6 Schematic diagram of the connection between the first plug-in part and the second plug-in part of the present utility model;

[0026] In the figure: 1, low-voltage cabinet; 2, flange connection seat; 3, terminal cable; 4, intermediate joint; 5, copper busbar seat; 6, flange housing; 7, U-shaped metal part; 8, terminal insulation layer; 9, male metal plug post; 10, female metal socket end; 11, first plug-in part; 12, second plug-in part; 13, nylon sleeve; 14, flange base; 15, through hole; 16, connection hole; 17, first strap contact finger; 18, second strap contact finger; 19, fixed seat; 20, connection seat; 21, clearance space; 22, plug-in positioning component; 23, abutting block; 24, abutting spring; 25, sliding sleeve; 26, positioning steel ball; 27, groove; 28, first positioning groove; 29, second positioning groove. Detailed implementation manners

[0027] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments.

[0028] Accordingly, the following detailed description of the embodiments of the present utility model is not intended to limit the scope of the claimed present utility model, but merely represents some embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model without making creative efforts fall within the scope of protection of the present utility model. It should be noted that, without conflict, the embodiments in the present utility model and the features and technical solutions in the embodiments may be combined with each other. It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. Embodiment

[0029] This embodiment provides a walking stick type low-voltage quick connection terminal, as Figure 1 shown. The walking stick type low-voltage quick connection terminal includes a flange connection seat 2 installed in a low-voltage cabinet 1, a terminal cable 3, and an intermediate joint 4 that is integrally U-shaped. Among them, the specific structures of the flange connection seat 2, the terminal cable 3, and the integrally U-shaped intermediate joint 4 are as follows:

[0030] Flange connection seat 2:

[0031] As Figure 2 and Figure 3 shown, the flange connection seat 2 includes a copper female seat 5 made of copper material, and a flange outer shell 6 sleeved outside the copper female seat 5. The flange outer shell 6 is made of nylon 66 material, and includes a nylon sleeve 13 sleeved outside the copper female seat 5, and a mounting flange base 14 integrally formed at the bottom of the nylon sleeve 13; through holes 15 are provided on the mounting flange base 14, and it is fixedly connected to the low-voltage cabinet 1 through bolts. The copper female seat 5 is a cylindrical structure passing through the nylon sleeve 13 and the flange base 14, and a slot for fitting a metal plug is formed inside it, and a wiring connection hole 16 for fitting and electrically connecting to electrical equipment in the low-voltage cabinet 1 is formed at the bottom. The copper female seat 5 is fixed relative to the flange outer shell 6, the flange outer shell 6 is fixedly installed on the low-voltage cabinet 1, and the copper female seat 5 is electrically connected to the electrical equipment in the low-voltage cabinet 1.

[0032] Intermediate joint 4:

[0033] As Figure 2 and Figure 4 shown, the intermediate joint 4 is a U-shaped metal part 7 bent into a U shape. The middle section of the U-shaped metal part 7 is wrapped with a terminal insulating layer 8. A male head metal plug 9 is formed on one side, and a female head metal socket end 10 is formed on the other side. And a first plug-in part 11 is installed outside the female head metal socket end 10, and through holes for fitting and connecting with an insulating operating rod are provided on the first plug-in part 11.

[0034] Terminal cable 3

[0035] The length of the terminal cable 3 is between 2 meters and 15 meters. The weight of the terminal cable 3 per meter is about 3 KG, and the overall weight is between 6 KG and 45 KG. As Figure 2 shown, in this embodiment, a second connector 12 that mates with the first connector 11 is installed at the end of the terminal cable 3.

[0036] The flange connection base 2, the intermediate joint 4, and the connectors outside the ends of the intermediate joint 4 and the terminal cable 3 form an integral crutch-shaped low-voltage quick-connection terminal. The usage method of this crutch-shaped low-voltage quick-connection terminal is as follows:

[0037] When a low-voltage device is connected to the terminal cable 3, as Figure 5 shown, first, install the flange connection base 2 on the low-voltage cabinet 1, and wire the electrical equipment in the low-voltage cabinet 1 to the copper busbar seat 5 of the flange connection base 2; then insert the intermediate joint 4 through its female head metal slot end 10 into the metal end of the terminal cable 3, and limit the insertion through the second connector 12 that mates with the first connector 11; at this time, the operator does not need to climb high, connect with the first connector 11 of the intermediate joint 4 on the ground with an insulating operating rod, and finally lift the intermediate joint 4 and the terminal cable 3 by using the insulating operating rod, and insert the male head metal post 9 of the intermediate joint 4 into the copper busbar seat 5 of the flange connection base 2 to complete the hanging operation of the terminal cable 3 of the low-voltage cabinet 1.

[0038] As Figure 1 shown, in this crutch-shaped low-voltage quick-connection terminal, the intermediate joint 4 changes the gravity load of the original terminal cable 3 in the horizontal direction to the vertical direction and transmits it to the flange connection base 2; after receiving the gravity load, the flange connection base 2 can effectively transmit it to the low-voltage cabinet 1, thereby reducing the joint weight load borne by the cable joint and extending the service life.

[0039] Since the metal end of the terminal cable 3, the U-shaped metal part 7 of the intermediate joint 4, and the copper busbar seat 5 are all metal parts, the electrical conduction between the terminal cable 3 and the electrical equipment in the low-voltage cabinet 1 is satisfied. In addition, to achieve effects such as stable contact, low contact resistance, high overload current capacity, and low temperature rise, as Figure 3 and Figure 4 shown, in this embodiment, a ring-shaped first strap finger 17 is installed in the slot of the copper busbar seat 5, and at the same time, two second strap fingers 18 that can contact the end of the terminal cable 3 are installed in the female head metal slot end 10 of the U-shaped intermediate joint 4. Embodiment

[0040] On the basis of Embodiment 1, to ensure the convenience and stability of the connection between the intermediate joint 4 and the terminal cable 3, this embodiment provides a plug-in structure for connecting the intermediate joint 4 and the terminal cable 3. The plug-in structure includes a first plug-in member 11 installed outside the female head metal socket end 10, and a second plug-in member 12 installed at the end of the terminal cable 3 and capable of being plugged and matched with the first plug-in member 11.

[0041] Specifically, as Figure 4 and Figure 6 shown, the first plug-in connecting member includes a fixed seat 19 and a connecting seat 20. The fixed seat 19 is fixedly sleeved and connected with the female head metal socket end 10; the connecting seat 20 is a tubular structure, one end of which is fixedly connected with the fixed seat 19. A gap space 21 is formed between the inner wall of the connecting seat 20 and the outer wall of the female head metal socket end 10, and a plugging and positioning assembly 22 is installed outside the connecting seat 20. The fixed seat 19 is provided with a through hole for cooperating with an insulating operating rod to connect. The second plug-in member 12 is a cylindrical structure installed at the end of the terminal cable 3, and it can be inserted into the gap space 21 and limited by the plugging and positioning assembly 22.

[0042] As Figure 6 shown, considering the convenience of connecting the intermediate joint 4 and the terminal cable 3, a contact block 23 is arranged in the gap space 21 between the inner wall of the connecting seat 20 and the outer wall of the female head metal socket end 10. The contact block 23 is installed in the gap space 21 through a contact spring 24. When the second plug-in member 12 is inserted, it pushes the contact block 23 to compress the contact spring 24; until the second plug-in member 12 reaches the plugging and positioning assembly 22, the plugging and positioning assembly 22 limits the second plug-in member 12; conversely, when the plugging and positioning assembly 22 releases the limit on the second plug-in member 12, under the action of the contact spring 24, the second plug-in member 12 can quickly come out to achieve convenient plugging and unplugging.

[0043] As Figure 6 shown, the plugging and positioning assembly 22 in this embodiment includes a sliding sleeve 25 slidably sleeved outside the connecting seat 20 through a spring, and a positioning steel ball 26 installed on the pipe wall of the connecting seat 20; a groove 27 for cooperating with the outward movement of the positioning steel ball 26 is formed on the inner surface of the sliding sleeve 25; a first positioning groove 28 for cooperating with the positioning steel ball 26 is arranged on the contact block 23; a second positioning groove 29 for cooperating with the positioning steel ball 26 is arranged on the outside of the second plug-in member 12. When connecting the intermediate joint 4 and the terminal cable 3, first, to Figure 6Slide the sliding sleeve 25 on the left side to align the groove 27 on the inner surface of the sliding sleeve 25, the positioning steel ball 26, and the first positioning groove 28 on the abutting block 23 on the same axis; at this time, insert the second connector 12. While the second connector 12 pushes the abutting block 23, the positioning steel ball 26 moves outward. When the second connector 12 reaches the plugging and positioning assembly 22, that is, when the end of the terminal cable 3 is completely inserted into the metal end of the terminal cable 3, release the sliding sleeve 25, and the sliding sleeve 25 slides Figure 6 to the right side in the middle, and at the same time the positioning steel ball 26 moves inward and snaps into the second positioning groove 29 outside the second connector 12 to form a limit, so as to ensure the stability of the connection between the intermediate joint 4 and the terminal cable 3.

[0044] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A cane-type low-voltage quick-connect terminal, characterized in that: The crutch-shaped low-voltage quick-connection terminal includes a flange connection seat installed in a low-voltage cabinet, a terminal cable, and an intermediate joint integrally shaped like a U. The flange connection seat includes a copper mother seat and a flange outer shell sleeved outside the copper mother seat. The flange outer shell is fixedly installed on the low-voltage cabinet, and the copper mother seat is electrically connected to electrical equipment in the low-voltage cabinet. The intermediate joint is a metal part bent into a U shape. The middle section of the U-shaped metal part is wrapped with a terminal insulating layer. A male metal plug post is formed on one side, and a female metal socket end is formed on the other side. And a first plug-in part capable of connecting with an insulating rod is installed outside the female metal socket end. A second plug-in connector matching with the first plug-in part is installed at the end of the terminal cable. The intermediate joint is inserted into the metal end of the terminal cable through its female metal socket end, and the insertion is limited by the second plug-in connector matching with the first plug-in part. It is inserted into the copper mother seat of the flange connection seat through the male metal plug post. The flange connection seat, the intermediate joint, and the plug-in parts outside the ends of the intermediate joint and the terminal cable form an integral crutch-shaped low-voltage quick-connection terminal.

2. The crutch-shaped low-voltage quick-connection terminal according to claim 1, wherein: The flange outer shell of the flange connection seat includes a nylon sleeve sleeved outside the copper mother seat and an installation flange base integrally formed at the bottom of the nylon sleeve. Through holes are provided on the installation flange base, and it is fixedly connected to the low-voltage cabinet through bolts.

3. The crutch-shaped low-voltage quick-connect terminal according to claim 2, wherein: The copper mother seat is a cylindrical structure passing through the nylon sleeve and the flange base. A slot for matching with the metal plug post is formed inside it, and a wiring connection hole for matching with electrical equipment in the low-voltage cabinet is formed at its bottom.

4. The crutch-shaped low-voltage quick-connect terminal according to claim 3, characterized in that: An annular strap finger is installed in the slot of the copper mother seat.

5. The crutch-shaped low-voltage quick-connect terminal according to claim 1, characterized in that: A plurality of strap fingers capable of contacting the end of the terminal cable are installed in the female metal socket end of the U-shaped intermediate joint.

6. The crutch-type low-voltage quick-connect terminal according to claim 1, wherein: The first plug-in part includes a fixed seat and a connecting seat. The fixed seat is fixedly sleeved and connected to the female metal socket end. The connecting seat is a tube structure. One end of it is fixedly connected to the fixed seat. A gap space is formed between the inner wall of the connecting seat and the outer wall of the female metal socket end. A plug-in positioning component is installed outside the connecting seat.

7. The crutch-shaped low-voltage quick-connect terminal according to claim 6, characterized in that: The plug-in positioning component includes a sliding sleeve slidably sleeved outside the connecting seat through a spring and a positioning steel ball installed on the pipe wall of the connecting seat. A groove for matching with the outward movement of the positioning steel ball is formed on the inner surface of the sliding sleeve.

8. The crutch-shaped low-voltage quick-connect terminal according to claim 7, wherein: An abutting block is provided in the gap space between the inner wall of the connecting seat and the outer wall of the female metal socket end. The abutting block is installed in the gap space through an abutting spring. A first positioning groove for matching with the positioning steel ball is provided on the abutting block.

9. The crutch-shaped low-voltage quick-connect terminal according to claim 8, characterized in that: The second plug-in connector is a cylindrical structure installed at the end of the terminal cable. It can be inserted into the gap space and contact the abutting block. A second positioning groove for matching with the positioning steel ball is provided on its outside.

10. The crutch-shaped low-voltage quick-connect terminal according to claim 6, wherein: The fixed seat is provided with a through hole for matching with an insulating operating rod to connect.

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