Ring main unit interlocking device

Abstract

The utility model discloses a ring main unit interlocking device, which relates to the technical field of ring main unit accessories and comprises a support, a side wall of the support is provided with an insertion hole, a transverse rod is inserted in the insertion hole, the outer side of the transverse rod is in threaded connection with a nut, the side wall of the support is provided with a button groove, the side wall of the support is internally provided with a clamping groove, and the side wall of the nut is provided with a square through groove. An inner ring groove is formed in the side wall of the support, the inner ring groove is formed below the nut, a fixing assembly is arranged in the nut and comprises a clamping rod, the clamping rod is fixedly connected to the interior of the square through groove, the bottom of the clamping rod extends into the inner ring groove, and a clamping block inner groove is formed in the side wall of the end, extending into the inner ring groove, of the clamping rod; and a thrust spring is arranged in the clamping block inner groove, so that the technical problems that the screw cap is extremely easy to loosen after being used for a long time, so that the fixing effect cannot be achieved, and if the screw cap is loosened, the ring main unit interlocking can cause harm to the safety of surrounding workers are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of ring network cabinet accessories, in particular to an interlocking device for a ring network cabinet. Background Art

[0002] The ring main unit interlocking device is a protective device used in ring main units or distribution cabinets to achieve safe operation and protection of electrical equipment. It ensures that the operation of electrical equipment is carried out in a safe sequence through interlocking mechanisms and logic control circuits to prevent misoperation and potential dangers. The ring main unit is a common electrical equipment in urban power grids, used for power distribution and control of electrical energy distribution. It usually includes components such as circuit breakers, disconnectors, load switches, and various measuring, protection and control devices. During the operation and maintenance of the ring main unit, the correct operation and safe protection of electrical equipment must be ensured. Misoperation or violation of operating procedures may cause electrical equipment failure, arc explosion, electric shock or other accidents. Therefore, in order to ensure the safety and reliability of operation, an interlocking device is required to achieve the correct sequence and restriction of operating steps. The main function of the ring main unit interlocking device is to achieve interlocking and sequential control of electrical equipment. It usually adopts a combination of mechanical interlocking devices and electrical control systems.

[0003] After searching, the patent document (authorization announcement number is CN212230950U) includes a connector, a fixing ring, a movable rod, a fixing device, a bracket, a nut block, a connecting screw and a fixing nut. The surface of the connector is fixedly installed with a fixing ring, the inside of the fixing ring is movably connected with a movable rod, the surface of the movable rod is fixedly installed with a fixing device, the side opposite to the fixing device is fixedly installed with a bracket, the inside of the bracket is fixedly installed with a nut block, the inside of the nut block is movably connected with a connecting screw, the surface of the connecting screw is fixedly installed with a fixing nut, and the fixing device includes a mounting plate, a sliding rod, an adjusting block, a locking knob and a clamping ring. The utility model provides a fixing device so that the interlocking device of the ring network cabinet is convenient for disassembly and assembly while ensuring a firm connection, facilitating later maintenance and replacement, easy to operate and simple in structure.

[0004] However, the above device still has shortcomings:

[0005] The nut is very easy to loosen after long-term use, and thus cannot achieve the fixing effect. If the nut is loose, the ring main unit interlock will endanger the safety of surrounding workers. Utility Model Content

[0006] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a ring main unit interlocking device, which solves the problem that the nut is extremely easy to loosen after long-term use, thereby failing to achieve the fixing effect. If the nut is loose, the ring main unit interlocking will endanger the safety of surrounding workers.

[0007] To achieve the above-mentioned purpose, the utility model proposes a ring network cabinet interlocking device, comprising a bracket, a side wall of the bracket is provided with a socket, a cross bar is inserted into the inside of the socket, a nut is threadedly connected to the outside of the cross bar, a button groove is provided on the side wall of the bracket, a card groove is provided inside the side wall of the bracket, a square through groove is provided on the side wall of the nut, an inner ring groove is provided on the side wall of the bracket, the inner ring groove is arranged below the nut, and a fixing component is arranged inside the nut, wherein:

[0008] The fixing assembly includes a clamping rod, which is fixedly connected to the inside of the square through groove, and the bottom of the clamping rod extends into the inner ring groove. The side wall of one end of the clamping rod extending into the inner ring groove is provided with a clamping block inner groove, and a thrust spring is arranged inside the clamping block inner groove. The inside of the clamping block inner groove is slidably connected with a clamping block, one end of the clamping block is arranged in the clamping block inner groove, and the other end of the clamping block is clamped in the clamping groove, one end of the thrust spring is fixedly connected to one end of the clamping block extending into the clamping block inner groove, and the other end of the thrust spring is fixedly connected to the clamping block inner groove.

[0009] Preferably, a fixing groove is provided on the top of the bracket, a connecting screw is arranged inside the fixing groove, a gasket is sleeved on the outer side of the connecting screw, a snap ring groove is provided on the bottom side wall of the connecting screw, and the snap ring groove is snapped into the fixing groove.

[0010] Preferably, a connecting piece is provided at the bottom of the bracket, a through hole is provided at the top of the connecting piece, and the plug hole is plugged into the inside of the through hole.

[0011] Preferably, the button slot is communicated with the card slot, and the card slot is communicated with the inner ring slot.

[0012] Preferably, a disengagement assembly is provided inside the bracket, wherein the disengagement assembly includes a pushing rod, the pushing rod is slidably connected to the inside of the card slot, one end of the pushing rod extends to the side wall of the card block, the other end of the pushing rod is fixedly connected to a tension spring, one end of the tension spring is fixedly connected to the end of the pushing rod away from the card block, the other end of the tension spring is fixedly connected to the card slot, a triangular groove is provided on the upper surface of the pushing rod, a button block is slidably connected to the inside of the button slot, a button spring is sleeved on the outside of the button block, two ends of the button spring are respectively fixedly connected to the button block and the bracket, one end of the button block extending into the button slot is fixedly connected to a driving rod, and the driving rod extends into the triangular groove.

[0013] Preferably, the triangular groove is in the shape of a triangle, and the inclined surface of the triangular groove is arranged on a side away from the tension spring.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. Through the setting of the fixing component, when fixing the nut, the thrust spring will push the card block into the card slot through the action of the thrust spring, so that the card block is carded in the card slot. At this time, no matter how the nut is turned, the nut will not fall off the cross bar.

[0016] The advantage of this design is that it effectively prevents the nut from loosening and falling off, ensuring the stability and reliability of the equipment in various environments and usage scenarios. Secondly, the nut falling off may cause equipment failure, requiring frequent maintenance and replacement. The design to prevent the nut from falling off can significantly reduce this unnecessary maintenance cost and extend the service life of the equipment. At the same time, the nut falling off will cause the equipment to stop and affect work efficiency. The design to prevent the nut from falling off can reduce this downtime and improve the work efficiency and productivity of the equipment.

[0017] 2. This can be achieved through the setting of the disengagement component. When the device needs to be replaced or repaired, the staff needs to press the button block. By pressing the button block to make it slide in the button groove, the driving rod will move in the triangular groove. Through the contact between the driving rod and the inclined surface of the triangular groove, the driving rod will push the push rod as a whole in the direction away from the tension spring. At this time, the clamping block will retract into the inner groove of the clamping block, and the nut can be detached from the cross bar.

[0018] The advantage of such a design is that, while ensuring that the nut is safe and reliable and will not fall off, the nut can also be taken out by pressing the button block in an emergency, with a simple structure and easy operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 It is a schematic diagram of the explosion structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the bracket of the utility model;

[0022] Figure 4 For the utility model Figure 3 Schematic diagram of the structure at A in the middle;

[0023] Figure 5 For the utility model Figure 3 Schematic diagram of the structure at B in the middle;

[0024] Figure 6 It is a schematic diagram of the triangular groove structure of the utility model.

[0025] In the figure: 1. bracket; 11. jack; 12. fixing groove; 13. inner ring groove; 14. snap groove; 15. button groove; 2. cross bar; 3. connecting piece; 31. through hole; 4. connecting screw; 41. gasket; 42. snap ring groove; 5. nut; 51. square through groove; 6. fixing component; 61. snap rod; 62. inner groove of the clamping block; 63. thrust spring; 64. snap block; 7. disengagement component; 71. push rod; 711. triangular groove; 72. tension spring; 73. button block; 74. button spring; 75. drive rod. DETAILED DESCRIPTION

[0026] The technical solution of the utility model will be described clearly and completely in conjunction with the embodiments below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] like Figure 1-6 As shown, a ring main unit interlocking device includes a bracket 1, a fixing groove 12 is opened on the top of the bracket 1, a connecting screw 4 is arranged inside the fixing groove 12, a gasket 41 is sleeved on the outer side of the connecting screw 4, a snap ring groove 42 is opened on the bottom side wall of the connecting screw 4, and the snap ring groove 42 is snapped into the fixing groove 12.

[0028] A connecting member 3 is provided at the bottom of the bracket 1 , a through hole 31 is provided at the top of the connecting member 3 , and the plug hole 11 is plugged into the inside of the through hole 31 .

[0029] A plug hole 11 is provided on the side wall of the bracket 1, a cross bar 2 is inserted into the inside of the plug hole 11, a nut 5 is threadedly connected to the outer side of the cross bar 2, a button groove 15 is provided on the side wall of the bracket 1, a card slot 14 is provided inside the side wall of the bracket 1, a square through groove 51 is provided on the side wall of the nut 5, an inner ring groove 13 is provided on the side wall of the bracket 1, and the inner ring groove 13 is arranged below the nut 5, wherein a fixing component 6 is arranged inside the nut 5, the button groove 15 is connected with the card slot 14, and the card slot 14 is connected with the inner ring groove 13.

[0030] The fixing assembly 6 includes a clamping rod 61, which is fixedly connected to the inside of the square through groove 51. The bottom of the clamping rod 61 extends into the inner ring groove 13. The side wall of one end of the clamping rod 61 extending into the inner ring groove 13 is provided with a clamping block inner groove 62. A thrust spring 63 is arranged inside the clamping block inner groove 62. A clamping block 64 is slidably connected inside the clamping block inner groove 62. One end of the clamping block 64 is arranged in the clamping block inner groove 62. The other end of the clamping block 64 is clamped in the clamping groove 14. One end of the thrust spring 63 is fixedly connected to one end of the clamping block 64 extending into the clamping block inner groove 62. The other end of the thrust spring 63 is fixedly connected to the clamping block inner groove 62.

[0031] When fixing the nut 5 , the thrust spring 63 will push the engaging block 64 into the engaging slot 14 , so that the engaging block 64 is engaged in the engaging slot 14 . At this time, no matter how the nut 5 is rotated, the nut 5 will not fall off the cross bar 2 .

[0032] The advantage of such a design is that it effectively prevents the nut 5 from loosening or falling off, and can ensure the stability and reliability of the device in various environments and usage scenarios. Secondly, the falling off of the nut 5 may cause device failure, requiring frequent maintenance and replacement. The design to prevent the nut 5 from falling off can significantly reduce such unnecessary maintenance costs and extend the service life of the device. At the same time, the falling off of the nut 5 will cause the device to shut down, affecting work efficiency. The design to prevent the nut 5 from falling off can reduce such downtime and improve the work efficiency and productivity of the device.

[0033] The bracket 1 is provided with a disengagement assembly 7, wherein the disengagement assembly 7 includes a pushing rod 71, which is slidably connected to the inside of the card slot 14, one end of the pushing rod 71 extends to the side wall of the card block 64, the other end of the pushing rod 71 is fixedly connected to a tension spring 72, one end of the tension spring 72 is fixedly connected to the end of the pushing rod 71 away from the card slot 64, and the other end of the tension spring 72 is fixedly connected to the card slot 14, a triangular groove 711 is provided on the upper surface of the pushing rod 71, the triangular groove 711 is triangular, and the inclined surface of the triangular groove 711 is arranged on the side away from the tension spring 72, a button block 73 is slidably connected to the inside of the button slot 15, a button spring 74 is sleeved on the outside of the button block 73, and the two ends of the button spring 74 are respectively fixedly connected to the button block 73 and the bracket 1, and one end of the button block 73 extending into the button slot 15 is fixedly connected to a driving rod 75, and the driving rod 75 extends into the triangular groove 711.

[0034] When the device needs to be replaced or repaired, the staff needs to press the button block 73. By pressing the button block 73 to make it slide in the button groove 15, the driving rod 75 will move in the triangular groove 711. Through the contact between the driving rod 75 and the inclined surface of the triangular groove 711, the driving rod 75 will push the pushing rod 71 as a whole in the direction away from the tension spring 72. At this time, the clamping block 64 will retract into the inner groove 62 of the clamping block, and the nut 5 can be detached from the cross bar 2.

[0035] The advantage of such a design is that, while ensuring that the nut 5 is safe and reliable and will not fall off, the nut 5 can also be taken out by pressing the button block 73 in an emergency, and the structure is simple and the operation is convenient.

[0036] Working principle: when fixing the nut 5, through the action of the thrust spring 63, the thrust spring 63 will push the clamping block 64 into the clamping slot 14, so that the clamping block 64 is clamped in the clamping slot 14. At this time, no matter how the nut 5 is rotated, the nut 5 will not fall off the cross bar 2. When it is necessary to replace or repair the device, the staff needs to press the button block 73. By pressing the button block 73 to make it slide in the button slot 15, the driving rod 75 will move in the triangular groove 711. Through the contact between the driving rod 75 and the inclined surface of the triangular groove 711, the driving rod 75 will push the push rod 71 as a whole in the direction away from the tension spring 72. At this time, the clamping block 64 will retract into the inner groove 62 of the clamping block. At this time, the nut 5 can be detached from the cross bar 2, and the work is completed.

[0037] The above embodiments are only used to illustrate the technical method of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical method of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the utility model.

Claims

1. A ring main unit interlocking device, characterized in that: The invention comprises a bracket (1), a plug hole (11) is provided on the side wall of the bracket (1), a cross bar (2) is inserted into the plug hole (11), a nut (5) is threadedly connected to the outer side of the cross bar (2), a button groove (15) is provided on the side wall of the bracket (1), a clamping groove (14) is provided on the side wall of the bracket (1), a square through groove (51) is provided on the side wall of the nut (5), an inner ring groove (13) is provided on the side wall of the bracket (1), the inner ring groove (13) is arranged below the nut (5), and a fixing component (6) is arranged inside the nut (5), wherein: The fixing assembly (6) comprises a clamping rod (61), wherein the clamping rod (61) is fixedly connected to the inside of the square through groove (51), the bottom of the clamping rod (61) extends into the inner ring groove (13), a side wall of one end of the clamping rod (61) extending into the inner ring groove (13) is provided with a clamping block inner groove (62), a thrust spring (63) is arranged inside the clamping block inner groove (62), a clamping block (64) is slidably connected inside the clamping block inner groove (62), one end of the clamping block (64) is arranged in the clamping block inner groove (62), the other end of the clamping block (64) is clamped in the clamping groove (14), one end of the thrust spring (63) is fixedly connected to one end of the clamping block (64) extending into the clamping block inner groove (62), and the other end of the thrust spring (63) is fixedly connected to the clamping block inner groove (62).

2. A ring main unit interlocking device according to claim 1, characterized in that: The top of the bracket (1) is provided with a fixing groove (12), a connecting screw (4) is arranged inside the fixing groove (12), a gasket (41) is sleeved on the outer side of the connecting screw (4), a snap ring groove (42) is provided on the side wall of the bottom of the connecting screw (4), and the snap ring groove (42) is snapped into the fixing groove (12).

3. The ring main unit interlocking device according to claim 1, characterized in that: A connecting piece (3) is provided at the bottom of the bracket (1), a through hole (31) is provided at the top of the connecting piece (3), and the plug hole (11) is plugged into the inside of the through hole (31).

4. A ring main unit interlocking device according to claim 2, characterized in that: The button groove (15) is communicated with the clamping groove (14), and the clamping groove (14) is communicated with the inner ring groove (13).

5. A ring main unit interlocking device according to claim 4, characterized in that: A disengagement assembly (7) is provided inside the bracket (1), wherein the disengagement assembly (7) comprises a push rod (71), the push rod (71) is slidably connected inside the card slot (14), one end of the push rod (71) extends to the side wall of the card block (64), the other end of the push rod (71) is fixedly connected to a tension spring (72), one end of the tension spring (72) is fixedly connected to an end of the push rod (71) away from the card block (64), and the other end of the tension spring (72) is fixedly connected to On the card slot (14), a triangular groove (711) is provided on the upper surface of the push rod (71), a button block (73) is slidably connected inside the button slot (15), a button spring (74) is sleeved on the outer side of the button block (73), two ends of the button spring (74) are respectively fixedly connected to the button block (73) and the bracket (1), one end of the button block (73) extending into the button slot (15) is fixedly connected to a driving rod (75), and the driving rod (75) extends into the triangular groove (711).

6. A ring main unit interlocking device according to claim 5, characterized in that: The triangular groove (711) is in the shape of a triangle, and the inclined surface of the triangular groove (711) is arranged on a side away from the tension spring (72).

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