Quick Connector for Comprehensive Live Maintenance of Ring Main Unit

Abstract

The present invention relates to a fast connector for comprehensive live maintenance of ring main units. A conductive ring and two groups of conductive blocks are provided on the outer side wall of the straight plug-type cable head; an external insulating operating rod cooperates with the operating cavity of the T-shaped cable head to clamp the T-shaped cable head; two groups of conductive contacts are arranged in the inner cavity of the fast bushing, and a fast connector mechanism is used for the detachable connection of the T-shaped cable head and the fast bushing; the electromagnet is energized to control the opening of the fast connector mechanism; a pressing mechanism is used to control the on / off of the two groups of conductive blocks; the straight plug-type cable head is directly inserted into the inner cavity of the fast bushing in one direction, and the electromagnet is energized to generate magnetism to cooperate with the fast connector mechanism to open the fast connector mechanism so that the T-shaped cable head and the fast bushing can be connected into one body. Workers do not need additional steps and the operation is simple and fast; when the worker pulls out the straight plug-type cable head from the inner cavity of the fast bushing, the pressing mechanism is triggered, and the electromagnet loses power to open the fast connector mechanism. Workers do not need additional steps and the operation is simple and fast.

Description

Technical Field

[0001] The present invention relates to a fast connector for comprehensive live maintenance of ring main units, belonging to the technical field of power equipment. Background Art

[0002] In view of the current and future normal and large-scale comprehensive live working situation, it should be emphasized how to achieve safe and efficient live working tasks for ring network equipment; in the operation of ring network equipment, there is currently no set of application tools that can meet safe and efficient rapid operation, which means that the comprehensive live working for ring network equipment cannot be carried out efficiently or even normally.

[0003] For safety considerations, during live working, the staff separates and installs the connector through an insulating operating rod. If the existing fast connector is directly operated by hand, there is no obstacle, but the efficiency is low when operating through an insulating operating rod. Summary of the Invention

[0004] The purpose of the present invention is to provide a fast connector for comprehensive live maintenance of ring main units to solve the problem of low efficiency when operating through an insulating operating rod as proposed in the above background art.

[0005] The technical solution of the present invention is as follows:

[0006] The fast connector for comprehensive live maintenance of ring main units includes:

[0007] A T-shaped cable head, a straight plug-in cable head is installed at the front end of the T-shaped cable head, and a conductive ring and two groups of conductive blocks are sequentially arranged on the outer side wall of the straight plug-in cable head along its length direction; an operation cavity is opened at the rear end of the T-shaped cable head, and an external insulating operating rod cooperates with the operation cavity to clamp the T-shaped cable head;

[0008] A fast bushing, two groups of conductive contacts are arranged in the inner cavity of the fast bushing that cooperates with the straight plug-in cable head, and the two conductive contacts are respectively electrically connected to the positive and negative poles of an electromagnet;

[0009] A fast connector mechanism for detachably connecting the T-shaped cable head and the fast bushing;

[0010] An electromagnet, when the electromagnet is energized, it is used to control the opening of the fast connector mechanism;

[0011] During the process of inserting the straight plug-in cable head into the inner cavity of the fast bushing, the conductive ring connects the two groups of conductive contacts;

[0012] When the straight plug-in cable head is completely inserted into the fast bushing, the two groups of conductive blocks are respectively in abutting cooperation with the two groups of conductive contacts one by one;

[0013] A pressing mechanism is installed on a side of the operating cavity away from the direction in which the plug-in type cable head is inserted into the inner cavity of the quick sleeve, and the pressing mechanism is used to control the on and off of the two groups of conductive blocks.

[0014] Preferably, the pressing mechanism includes two groups of conductive components, a first elastic component, a conductive strip and an insulating rod. The two groups of conductive components are electrically connected to the two groups of conductive blocks one by one. The first elastic component drives the conductive strip to move away from the two groups of conductive components under normal conditions. The insulating rod is connected to the conductive strip and is used to press with external force so that the conductive strip is abutted and matched with the two groups of conductive components.

[0015] Preferably, one end of the insulating rod extends into the operating cavity.

[0016] Preferably, the moving direction of the conductive strip is consistent with the length extension direction of the plug-in cable head.

[0017] Preferably, an anti-mistaken-start mechanism is installed on the other inner side wall of the operating chamber opposite to the pressing mechanism, and the anti-mistaken-start mechanism is used to control the on and off of the conductive component.

[0018] Preferably, the anti-misstart mechanism includes a normally closed switch, a timer and a pressure sensor. The normally closed switch is connected in series with a conductive component. The pressure sensor is installed on the other inner wall of the operating chamber opposite to the pressing mechanism. The pressure sensor is used to trigger the connected timer to start countdown and disconnect the normally closed switch. The timer is used to close the normally closed switch after the timing ends.

[0019] Preferably, the quick connector mechanism includes a limiting groove provided on the outer wall of the T-type cable head, a protective sleeve provided on the outer wall of the quick sleeve, a limiting ball provided in the protective sleeve, a control sleeve sliding on the outer wall of the protective sleeve, and a second elastic member, the inner wall of the control sleeve is provided with an avoidance groove adapted to the limiting ball, the elastic force of the second elastic member is used to drive the avoidance groove of the control sleeve to be offset from the limiting ball under normal conditions, the control sleeve is magnetically matched with the energized electromagnet, and the limiting ball is inserted into the limiting groove to realize the connection of the T-type cable head and the quick sleeve.

[0020] Preferably, the quick connector mechanism further comprises a sliding sleeve and a third elastic member, the sliding sleeve slides between the outer wall of the quick sleeve and the inner wall of the protective jacket, and when the straight-plug cable head is inserted into the inner cavity of the quick sleeve, the T-type cable head presses the third elastic member through the sliding sleeve.

[0021] The present invention has the following beneficial effects:

[0022] Insert the straight plug cable head directly into the inner cavity of the quick sleeve in one direction. During this process, the two groups of conductive contacts are connected through the conductive ring on the straight plug cable head, so as to control the electromagnet to be energized to generate magnetism and attract and cooperate with the control sleeve in the quick connector mechanism, realizing the opening of the quick connector mechanism so that the T-shaped cable head and the quick sleeve can be integrated. Workers do not need additional steps, and the operation is simple and fast;

[0023] When the worker withdraws the straight plug cable head from the inner cavity of the quick sleeve, the pressing mechanism is triggered. The pressing mechanism controls the electromagnet to be energized, so that the quick connector mechanism opens. Workers do not need additional steps, and the operation is simple and fast. Brief Description of the Drawings

[0024] Figure 1 Structural schematic diagram of the present invention;

[0025] Figure 2 Front sectional view of the present invention;

[0026] Figure 3 Front sectional view of the T-shaped cable head of the present invention;

[0027] Figure 4 Partial structural schematic diagram of the rear end of the T-shaped cable head of the present invention;

[0028] Figure 5 Structural schematic diagram of the straight plug cable head of the present invention;

[0029] Figure 6 Front sectional view of the quick connection sleeve of the present invention.

[0030] 1. T-shaped cable head; 11. Limit groove; 12. Operation cavity; 2. Quick connection sleeve; 21. Conductive contact; 3. Straight plug cable head; 31. Conductive ring; 32. Conductive block; 4. Pressing mechanism; 41. Conductive component; 42. First elastic member; 43. Conductive strip; 44. Insulating rod; 5. Protective outer sleeve; 6. Electromagnet; 7. Anti-misoperation starting mechanism; 71. Normally closed switch; 72. Timer; 73. Pressure sensor; 8. Control sleeve; 81. Second elastic member; 82. Avoidance groove; 9. Sliding sleeve; 91. Third elastic member; 10. Limit ball. Detailed Description of the Invention

[0031] The present invention will be described in detail below with reference to the drawings and specific embodiments.

[0032] Embodiment:

[0033] As Figure 1-6 shown:

[0034] The plug-in cable head 3 is installed inside the T-shaped cable head 1, and the head end of the plug-in cable head 3 extends to the outside of the T-shaped cable head 1. The tail end of the plug-in cable head 3 is used to connect with an external cable and is relatively movable; the quick-connect sleeve 2 is relatively fixedly installed outside and is electrically connected to an external electrical appliance; when the plug-in cable head 3 is completely inserted into the inner cavity of the quick-connect sleeve 2, the head end of the plug-in cable head 3 abuts against the fluid guide in the quick-connect sleeve 2, thereby realizing the electrical connection between the external cable and the external electrical appliance. This is the existing structure and will not be described in detail.

[0035] As Figure 1-4 shown, an operation cavity 12 is opened at the tail end of the T-shaped cable head 1, and one end of an external insulating operating rod is inserted into the operation cavity 12 to temporarily connect the T-shaped cable head 1 and the insulating operating rod into one body; the staff indirectly controls the T-shaped cable head 1 through the insulating operating rod.

[0036] Figure 4 The arrow direction in

[0037] represents the straight insertion direction of the T-shaped cable head 1 and the plug-in cable head 3 into the inner cavity of the quick-connect sleeve 2; control the plug-in cable head 3 to be straightly inserted into the inner cavity of the quick-connect sleeve 2. During this process, the T-shaped cable head 1 abuts against the sliding sleeve 9 and pushes the sliding sleeve 9 to slide inward linearly and compress the third elastic member 91 to generate a reverse elastic force; when the conductive ring 31 of the plug-in cable head 3 moves relatively to abut against the two groups of conductive contacts 21 (the conductive ring 31 remains in contact with the two groups of conductive contacts 21 within a certain stroke to achieve conduction), the electromagnetic circuit 6 is closed to form a loop and is energized to generate magnetism. The electromagnet 6 generates magnetism and attracts the magnetic control sleeve 8. As Figure 6 shown, the control sleeve 8 moves relatively to the right and compresses the second elastic member 81 to generate magnetism, so that the avoidance groove 82 of the control sleeve 8 just aligns with a number of limit balls 10; the right end of the T-shaped cable head 1 can be smoothly inserted into the space between the protective jacket 5 and the quick-connect sleeve 2. During this process, the right end of the T-shaped cable head 1 pushes a number of limit balls 10 into the avoidance groove 82.

[0038] The plug-in cable head 3 continues to go deeper into the inner cavity of the quick-connect sleeve 2, the conductive ring 31 is relatively separated from the two sets of conductive contacts 21, the electromagnet 6 is powered off and loses its magnetism, and the control sleeve 8 is pushed by the elastic force of the second elastic member 81 to reset to the left until the plug-in cable head 3 is completely inserted into the inner cavity of the quick-connect sleeve 2. At this time, the limit groove 11 on the outer wall of the right end of the T-type cable head 1 just moves to align with a number of limit balls 10, and the elastic force of the second elastic member 81 pushes the control sleeve 8 to move to the left so that the avoidance groove 82 staggers a number of limit balls 10, so that the control sleeve 8 presses a number of limit balls 10 into the limit groove 11. At this time, the limit balls 10 are relatively fixed and cannot move by the control sleeve 8 and the T-type cable head 1, thereby realizing that the T-type cable head 1 and the quick-connect sleeve 2 are fixedly connected together; at this time, the two sets of conductive blocks 32 on the plug-in cable head 3 just correspond to the two sets of conductive contacts 21. Then, the insulating operating rod can be pulled out from the operating cavity 12.

[0039] like Figure 4 As shown, insert one end of the insulating operating rod into the operating cavity 12, and extract the T-type cable head 1 and the plug-in cable head 3 from the inner cavity of the quick-connect sleeve 2 in the opposite direction of the arrow. First, the insulating operating rod pushes the conductive strip 43 to move leftward through the insulating rod 44. The conductive strip 43 moves leftward to compress the first elastic member 42 to generate a reverse elastic force, and the conductive strip 43 simultaneously abuts against the ends of the two groups of conductive components 41, so that the two groups of conductive components 41 are connected through the conductive strip 43, so that the electromagnet 6 is energized to generate magnetism, and the magnetic force of the electromagnet 6 adsorbs the control sleeve 8 to move rightward, so that the avoidance groove 82 is just aligned with the plurality of limit balls 10;

[0040] At this time, the T-type cable head 1 is ejected to the left by the sliding sleeve 9 under the push of the reverse elastic force of the third elastic member 91, and the plug-in cable head 3 is pulled out from the inner cavity of the quick-connect sleeve 2. During the process of the T-type cable head 1 being ejected to the left, a plurality of limit balls 10 are pushed outward into the avoidance groove 82, and the sliding sleeve 9 slides to the left to reset.

[0041] The plug-in cable head 3 is pulled out from the inner cavity of the quick-connect sleeve 2 , so that the conductive block 32 is separated from the contact with the conductive contact 21 , so that the electromagnet 6 loses power and magnetism, and the control sleeve 8 is reset under the push of the second elastic member 81 .

[0042] In order to prevent the insulated operating rod from accidentally touching the insulating rod 44 during the insertion of the straight-plug cable head 3 into the inner cavity of the quick-connect sleeve 2; Figure 4As shown in the figure, a pressure sensor 73 is installed on the right inner wall of the operation chamber 12. The pressure sensor 73 and the insulating rod 44 are located on opposite sides of the inner cavity of the operation chamber 12. During the process of inserting the external insulating operating rod into the inner cavity of the operation chamber 12 to push the straight plug type cable head 3 into the inner cavity of the quick connection sleeve 2, the external insulating operating rod applies pressure to the pressure sensor 73. After the applied pressure reaches the set value of the pressure sensor 73, the pressure sensor 73 controls the normally closed switch 71 to open through a single-chip microcomputer / micro central processing unit (not shown in the attached figure), so that one group of conductive components 41 is disconnected; at the same time, the pressure sensor 73 controls the timer 72 to start counting down through the single-chip microcomputer / micro central processing unit. After the countdown of the timer 72 ends, the normally closed switch 71 is controlled to close and return to the normal state through the single-chip microcomputer / micro central processing unit, so that the conductive components 41 resume the connected state.

[0043] When the straight plug type cable head 3 and the quick connection sleeve 2 are integrated, the power supply in the quick connection sleeve 2 provides power for the normally closed switch 71, the timer 72 and the pressure sensor 73.

[0044] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be included in the patent protection scope of the present invention by the same token.

Claims

1. The quick connector for comprehensive power-off maintenance of the ring main unit is characterized in that: include: A T-type cable head (1), wherein a plug-in type cable head (3) is installed at the front end of the T-type cable head (1), and a conductive ring (31) and two groups of conductive blocks (32) are sequentially arranged on the outer wall of the plug-in type cable head (3) along its length direction; an operating cavity (12) is provided at the rear end of the T-type cable head (1), and an external insulating operating rod cooperates with the operating cavity (12) to clamp the T-type cable head (1); A quick sleeve (2), wherein the inner cavity of the quick sleeve (2) and the plug-in type cable head (3) is provided with two groups of conductive contacts (21), and the two conductive contacts (21) are respectively electrically connected to the positive and negative poles of the electromagnet (6); A quick connector mechanism, the quick connector mechanism being used for detachable connection between a T-type cable head (1) and a quick sleeve (2); An electromagnet (6), wherein the electromagnet (6) is energized to control the opening of the quick connector mechanism; When the plug-in type cable head (3) is inserted into the inner cavity of the quick sleeve (2), the conductive ring (31) connects the two sets of conductive contacts (21); When the plug-in type cable head (3) is fully inserted into the quick sleeve (2), the two groups of conductive blocks (32) respectively abut against and cooperate with the two groups of conductive contacts (21) in a one-to-one correspondence; A pressing mechanism (4), the pressing mechanism (4) being mounted on a side of the operating cavity (12) away from a direction in which the plug-in type cable head (3) is inserted into the inner cavity of the quick sleeve (2), the pressing mechanism (4) being used to control the on and off of the two groups of conductive blocks (32); An anti-misstart mechanism (7) is installed on the other inner side wall of the operating chamber (12) opposite to the pressing mechanism (4); The quick connector mechanism comprises a limiting groove (11) provided on the outer wall of a T-type cable head (1), a protective sleeve (5) provided on the outer wall of a quick sleeve (2), a limiting ball (10) provided in the protective sleeve (5), a control sleeve (8) sliding on the outer wall of the protective sleeve (5), and a second elastic member (81); the inner wall of the control sleeve (8) is provided with an avoidance groove (82) adapted to the limiting ball (10); the elastic force of the second elastic member (81) is used to drive the avoidance groove (82) of the control sleeve (8) to be offset from the limiting ball (10) under normal conditions; the control sleeve (8) is magnetically matched with an energized electromagnet (6); the limiting ball (10) is inserted into the limiting groove (11) to realize the connection of the T-type cable head (1) and the quick sleeve (2) into one body; The quick connector mechanism further comprises a sliding sleeve (9) and a third elastic member (91); the sliding sleeve (9) slides between the outer wall of the quick sleeve (2) and the inner wall of the protective outer sleeve (5); when the straight-plug cable head (3) is inserted into the inner cavity of the quick sleeve (2), the T-type cable head (1) presses the third elastic member (91) via the sliding sleeve (9).

2. The quick connector for comprehensive power-off maintenance of the ring main unit according to claim 1, characterized in that: The pressing mechanism (4) includes two groups of conductive components (41), a first elastic member (42), a conductive bar (43), and an insulating rod (44). The two groups of conductive components (41) are respectively electrically connected to the two groups of conductive blocks (32) in one-to-one correspondence. The first elastic member (42) drives the conductive bar (43) to be away from the two groups of conductive components (41) under normal conditions. The insulating rod (44) is connected to the conductive bar (43) and is used for external pressing so that the conductive bar (43) is in abutting cooperation with the two groups of conductive components (41).

3. The quick connector for comprehensive power-off maintenance of the ring main unit according to claim 2, characterized in that: One end of the insulating rod (44) extends into the operation cavity (12).

4. The fast connector for comprehensive power-off maintenance of the ring main unit according to claim 2, characterized in that: The moving direction of the conductive bar (43) is consistent with the length extension direction of the straight plug cable head (3).

5. The fast connector for comprehensive power-off maintenance of the ring main unit according to claim 4, characterized in that: The anti-misoperation starting mechanism (7) is used to control the on-off of the conductive component (41).

6. The fast connector for comprehensive power-off maintenance of the ring main unit according to claim 5, characterized in that: The anti-misoperation starting mechanism (7) includes a normally closed switch (71), a timer (72), and a pressure sensor (73). The normally closed switch (71) is connected in series with the conductive component (41). The pressure sensor (73) is installed on the other inner side wall of the operation cavity (12) opposite to the pressing mechanism (4). The pressure sensor (73) is used to trigger the connected timer (72) to start counting down and the normally closed switch (71) to disconnect. The timer (72) is used to close the normally closed switch (71) after the timing ends.

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