Three-phase short-circuit rapid and safe locking grounding device

Abstract

The utility model discloses a three-phase short-circuit quick and safe locking grounding device, and belongs to the technical field of high-voltage power transmission. Comprising a grounding drill rod, the grounding drill rod is fixedly connected with a grounding wire, the grounding wire is electrically connected with three branch wires, one end, far away from the grounding wire, of each branch wire is electrically connected with a locking mechanism, each locking mechanism comprises a J-shaped buckle, each J-shaped buckle is rotatably provided with two arc-shaped locking strips through a shaft, and the two arc-shaped locking strips are locked by sliding a sliding rod on a holding pipe. The two rotating plates can drive the corresponding rotating rods to rotate synchronously, the sliding rod and the rotating rods are each fixedly connected with a J-shaped buckle, each J-shaped buckle is electrically connected to a grounding wire and a grounding drill rod through a branch wire, the interior of each J-shaped buckle is locked and buckled to a three-phase cable through two arc-shaped locking strips, and the purpose of quick and safe locking grounding of three-phase short circuits is achieved. The problems that a traditional handle rod is connected with a J-shaped buckle, carrying is difficult, and one-by-one installation efficiency is low are solved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of high-voltage power transmission, in particular to a three-phase short-circuit fast and safe grounding device. BACKGROUND

[0002] During high-voltage power transmission maintenance work, in order to prevent sudden power-on and eliminate residual voltage, electric power maintenance personnel need to use a high-voltage discharge rod to discharge all three-phase cables to ground, ensuring that the work site is always in the protection of the "ground potential", preventing electric shock of the workers. However, the current discharge rod is single, which is difficult for electric power maintenance personnel to carry, and needs to be installed on the three-phase cable one by one, which is inconvenient to install. The existing disclosed technology No. CN110707452B proposes a hanging grounding device, which uses a hook with an opening and a blocking rod that intermittently closes the opening, uses gravity to control the blocking rod to limit the falling of the wire or opens the opening to remove the hook. The whole process only needs to be controlled by two ropes, which ensures the stability of the connection between the grounding wire and the wire, reduces the operation difficulty, improves the operation efficiency and the efficiency of grounding. In view of the above-mentioned related technology, the utility model person believes that there are still the following defects: the grounding device in the comparative document is the same as the traditional high-voltage discharge rod, which needs to carry three grounding devices, which is difficult to carry, and needs to be installed on the three-phase cable one by one, which is inconvenient to install. In view of this, we propose a three-phase short-circuit fast and safe grounding device. CONTENT OF THE UTILITY MODEL

[0003] 1. Technical problem to be solved

[0004] The purpose of the present application is to provide a three-phase short-circuit fast and safe grounding device, which solves the technical problem of the grounding device in the comparative document and the traditional high-voltage discharge rod, which needs to carry three grounding devices, which is difficult to carry, and needs to be installed on the three-phase cable one by one, which is inconvenient to install. The sliding rod on the sliding handle can make the two rotating plates drive the corresponding rotating rods to rotate synchronously, the sliding rod and the rotating rod are fixedly connected with a J-shaped buckle, each J-shaped buckle is electrically connected to the grounding wire and the grounding rod through a branch line, and each J-shaped buckle is locked on the three-phase cable line by two arc-shaped locking strips inside the J-shaped buckle. The purpose of three-phase short-circuit fast and safe grounding is achieved, and the technical effect of solving the problem of carrying difficulty of the traditional one handle rod connected with one J-shaped buckle and low installation efficiency is achieved.

[0005] 2. Technical scheme

[0006] The technical scheme of the present application provides a three-phase short-circuit fast and safe grounding device, which comprises a grounding rod, a grounding wire fixedly connected to the grounding rod, three branch wires electrically connected to the grounding wire, a locking mechanism electrically connected to one end of each branch wire away from the grounding wire, a J-shaped buckle, two arc-shaped locking strips rotatably installed on the J-shaped buckle, an E-shaped seat fixedly provided on the J-shaped buckle, an arc-shaped elastic strip fixedly provided on the E-shaped seat, the end of the arc-shaped elastic strip elastically abutting against the arc-shaped locking strip, a slide rod fixedly connected to one J-shaped buckle, two rotating rods fixedly connected to the remaining two J-shaped buckles, two rotating plates rotatably installed on the slide rod, the rotating plates being rotatably connected to one rotating rod through a shaft, and a handle fixedly provided with two hinge seats, the hinge seats being rotatably connected to one rotating rod through a shaft.

[0007] By adopting the above technical scheme, one slide rod is slidably installed on the handle, two rotating rods are rotatably installed by using two hinge seats, and a rotating plate is rotatably connected between the slide rod and each rotating rod, so that when the slide rod slides along the handle, the two rotating rods are synchronously and reversely rotated by using the two rotating plates, the end of the slide rod and the rotating rod is fixedly provided with a J-shaped buckle, each J-shaped buckle is electrically connected to the grounding wire and the grounding rod through one branch wire, two arc-shaped locking strips are rotatably installed in the J-shaped buckle, two arc-shaped elastic strips are threadedly fixed on the J-shaped buckle, and each arc-shaped elastic strip elastically abuts against the corresponding arc-shaped locking strip, so that the three-phase cable is hung by using the J-shaped buckle, and the three-phase cable is locked by using the two arc-shaped locking strips. Since the slide rod and the two rotating rods are installed on the handle, the three J-shaped buckles can be conveniently and simultaneously locked on the three-phase cable by using the handle, thereby solving the problems of difficulty in carrying the traditional three discharge rods and low installation efficiency.

[0008] Optionally, an electrode sheet is fixedly provided at the end of each branch wire away from the grounding wire, and the electrode sheet is threadedly connected to the J-shaped buckle by a bolt.

[0009] By adopting the above technical scheme, the electrode sheet is threadedly fixed on the J-shaped buckle, and the branch wire is electrically connected to the corresponding J-shaped buckle through the electrode sheet.

[0010] Optionally, a lock rod is threadedly installed on the handle, a plurality of positioning holes are formed in the slide rod, and the lock rod is threadedly installed in any positioning hole.

[0011] By adopting the above technical scheme, the slide rod slides along the handle, and the slide rod and the handle are limited by threadedly installing the lock rod in the corresponding positioning hole.

[0012] Optionally, an oval block is fixed at one end of the slide rod, a through hole is formed in the oval block, and the grounding wire is movably inserted through the through hole of the oval block.

[0013] Through adoption of the technical scheme, the grounding wire is threaded along the perforation of the elliptical block and electrically connected to the corresponding J-shaped buckle through three branch wires.

[0014] Optionally, an arc-shaped slot is formed on the J-shaped buckle, one end of the arc-shaped lock strip is rotatably arranged in the arc-shaped slot through a shaft, and a rectangular through slot is formed on the J-shaped buckle at each E-shaped seat.

[0015] Through adoption of the technical scheme, the arc-shaped elastic strip elastically abuts against the corresponding arc-shaped lock strip, so that the two arc-shaped lock strips are opened along the J-shaped buckle and then elastically reset, and the space formed between the two arc-shaped lock strips and the J-shaped buckle can be used to lock the cable.

[0016] Optionally, a V-shaped wire inlet and a V-shaped wire locking groove are formed between the two arc-shaped lock strips and the J-shaped buckle.

[0017] Through adoption of the technical scheme, when the J-shaped buckle holds the cable, the cable enters the V-shaped wire inlet and can be locked in the V-shaped wire locking groove.

[0018] 3. Beneficial effects

[0019] One or more technical solutions provided in the technical scheme have at least the following technical effects or advantages: the two rotating plates are synchronously rotated through the sliding rod on the sliding handle, the sliding rod and the rotating rod are fixedly connected with a J-shaped buckle, each J-shaped buckle is electrically connected to the grounding wire and the grounding rod through a branch wire, and each J-shaped buckle is locked on the three-phase cable through two arc-shaped lock strips, so that the three-phase short circuit is quickly and safely locked and grounded, and the problems of difficulty in carrying the traditional three discharge rods and low installation efficiency are solved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 FIG. 1 is a schematic diagram of the overall structure of a three-phase short circuit fast and safe grounding device according to a preferred embodiment of the present application;

[0021] Figure 2 FIG. 2 is a schematic diagram of the structure of a grounding rod and a grounding wire of a three-phase short circuit fast and safe grounding device according to a preferred embodiment of the present application;

[0022] Figure 3 FIG. 3 is a schematic diagram of the structure of a handle, a sliding rod, a rotating rod and a locking mechanism of a three-phase short circuit fast and safe grounding device according to a preferred embodiment of the present application;

[0023] Figure 4 FIG. 4 is a schematic diagram of the structure of a three-phase short circuit fast and safe grounding device according to a preferred embodiment of the present application; Figure 3 FIG. 5 is an enlarged schematic diagram of position A in FIG. 4; FIG. 6 is a schematic diagram of the structure of a three-phase short circuit fast and safe grounding device according to a preferred embodiment of the present application;

[0024] Explanation of reference numerals in the drawings: 1, grounding rod; 2, grounding wire; 21, branch wire; 22, electrode sheet; 3, handle tube; 31, locking rod; 32, hinge base; 4, sliding rod; 41, positioning hole; 42, oval block; 421, through hole; 43, rotating plate; 5, rotating rod; 6, locking mechanism; 61, J-shaped buckle; 611, arc-shaped slot; 612, rectangular through slot; 62, arc-shaped locking strip; 621, V-shaped wire entry port; 622, V-shaped wire locking slot; 63, E-shaped base; 64, arc-shaped elastic strip. DETAILED DESCRIPTION

[0025] The application is further described in detail below with reference to the accompanying drawings.

[0026] Reference Figures 1 to 4 The embodiment of the application provides a three-phase short-circuit fast safety locking grounding device, which comprises a grounding rod 1, the grounding rod 1 is fixedly connected with a grounding wire 2, the grounding wire 2 is electrically connected with three branch wires 21, the branch wires 21 are respectively electrically connected with one locking mechanism 6 away from one end of the grounding wire 2, the locking mechanism 6 comprises a J-shaped buckle 61, two arc-shaped locking strips 62 are rotatably installed on the J-shaped buckle 61 through shafts, an E-shaped base 63 is threadedly fixed on the J-shaped buckle 61, an arc-shaped elastic strip 64 is fixedly arranged on the E-shaped base 63, the end of the arc-shaped elastic strip 64 elastically abuts against the arc-shaped locking strip 62, one J-shaped buckle 61 is fixedly connected with a sliding rod 4, the remaining two J-shaped buckles 61 are respectively fixedly connected with one rotating rod 5, two rotating plates 43 are rotatably installed on the sliding rod 4 through shafts, the rotating plates 43 are respectively rotatably connected with one rotating rod 5 through shafts, a handle tube 3 is slidingly sleeved with the sliding rod 4, two hinge bases 32 are fixedly arranged on the handle tube 3, the hinge bases 32 are respectively rotatably connected with one rotating rod 5 through shafts, one sliding rod 4 is slidingly installed on the handle tube 3, and two rotating rods 5 are rotatably installed by using two hinge bases 32, and the rotating plates 43 are rotatably connected between the sliding rod 4 and each rotating rod 5, so that when the sliding rod 4 slides along the handle tube 3, the two rotating rods 5 can be synchronously and reversely rotated by using the two rotating plates 43, the end of the sliding rod 4 and the rotating rod 5 is fixedly provided with one J-shaped buckle 61, each J-shaped buckle 61 is electrically connected to the grounding wire 2 and the grounding rod 1 through one branch wire 21, the two arc-shaped locking strips 62 are rotatably installed in the J-shaped buckle 61, the two arc-shaped elastic strips 64 are threadedly fixed on the J-shaped buckle 61, and each arc-shaped elastic strip 64 elastically abuts against the corresponding arc-shaped locking strip 62, so that the three-phase cable can be hung by using the J-shaped buckle 61, and the three-phase cable can be locked by using the two arc-shaped locking strips 62, the sliding rod 4 and the two rotating rods 5 are installed on the handle tube 3, the three J-shaped buckles 61 can be conveniently and simultaneously locked and buckled on the three-phase cable by using the handle tube 3, and the problems of difficult carrying and low installation efficiency of the traditional three discharge rods are solved.

[0027] Reference Figure 1 and Figure 2The electrode sheet 22 is fixed on the end of the branch line 21 away from the grounding line 2, and is screwed and connected with the J-shaped buckle 61. The electrode sheet 22 is screwed and fixed on the J-shaped buckle 61, and the branch line 21 is electrically connected with the corresponding J-shaped buckle 61 through the electrode sheet 22.

[0028] With reference to Figure 1 and Figure 3 The locking rod 31 is screwed and installed on the handle 3, and the plurality of positioning holes 41 are formed on the sliding rod 4. The locking rod 31 is screwed and installed in the corresponding positioning hole 41. The sliding rod 4 slides along the handle 3, and is screwed and installed in the corresponding positioning hole 41 through the locking rod 31, so that the sliding rod 4 and the handle 3 are limited and processed.

[0029] With reference to Figure 3 and Figure 4 The oval block 42 is fixed on one end of the sliding rod 4, and the through hole 421 is formed on the oval block 42. The grounding line 2 is movably penetrated through the through hole 421 of the oval block 42, and is electrically connected to the corresponding J-shaped buckle 61 through the three branch lines 21.

[0030] With reference to Figure 3 and Figure 4 The arc-shaped slot 611 is formed on the J-shaped buckle 61, and the arc-shaped lock strip 62 is rotatably arranged in the arc-shaped slot 611 through the shaft. The rectangular through slot 612 is formed on the J-shaped buckle 61 at each E-shaped seat 63, and the other end of the arc-shaped lock strip 62 and the arc-shaped elastic strip 64 are movably arranged in the rectangular through slot 612. The arc-shaped elastic strip 64 elastically abuts against the corresponding arc-shaped lock strip 62 at the end, so that the two arc-shaped lock strips 62 are rotatably opened along the J-shaped buckle 61, and are elastically reset. The space formed between the two arc-shaped lock strips 62 and the J-shaped buckle 61 can be used to lock the cable.

[0031] With reference to Figure 3 and Figure 4 The V-shaped wire inlet 621 and the V-shaped wire locking groove 622 are formed between the two arc-shaped lock strips 62 and the J-shaped buckle 61. When the J-shaped buckle 61 holds the cable, the cable enters the V-shaped wire inlet 621 and is locked in the V-shaped wire locking groove 622.

[0032] Working principle: through the sliding installation of a slide bar 4 on the grip pipe 3, and the rotary installation of two rotating rods 5 by two hinge bases 32, and the rotary connection of a rotating plate 43 between the slide bar 4 and each rotating rod 5, so that when the slide bar 4 slides along the grip pipe 3, the two rotating rods 5 can be synchronously and reversely rotated by the two rotating plates 43, and the end of the slide bar 4 and the rotating rod 5 is fixedly provided with a J-shaped buckle 61, each J-shaped buckle 61 is electrically connected to the grounding wire 2 and the grounding rod 1 through a branch line 21, two arc-shaped lock strips 62 are rotatably installed in the J-shaped buckle 61, two arc-shaped elastic strips 64 are threadedly fixed on the J-shaped buckle 61, and each arc-shaped elastic strip 64 elastically abuts against the corresponding arc-shaped lock strip 62, so as to hang the three-phase cable by the J-shaped buckle 61, and the three-phase cable can be locked by the two arc-shaped lock strips 62, because the slide bar 4 and the two rotating rods 5 are installed on the grip pipe 3, the three J-shaped buckles 61 can be conveniently locked and buckled on the three-phase cable at the same time by the grip pipe 3, and the problems of the traditional three discharge rods, such as difficult to carry and low installation efficiency, are solved.

Claims

1. A three-phase short circuit fast-acting safety grounding device, characterized in that: The utility model relates to a grounding rod, including: the grounding rod (1) is fixedly connected with the ground wire (2), the ground wire (2) is electrically connected with three branch lines (21), the branch line (21) is electrically connected with a locking mechanism (6) respectively away from the ground wire (2) one end, the locking mechanism (6) includes J-shaped buckle (61), two arc lock strips (62) are rotatably installed on the J-shaped buckle (61) through the shaft, E-shaped seat (63) is fixedly connected on the J-shaped buckle (61) through bolt thread, the arc elastic strip (64) is fixed on the E-shaped seat (63), the end of the arc elastic strip (64) is elastically contacted with the arc lock strip (62), one J-shaped buckle (61) is fixedly connected with the slide rod (4), and the remaining two J-shaped buckles (61) are fixedly connected with a rotating rod (5) respectively, two rotating plates (43) are rotatably installed on the slide rod (4) through the shaft, the rotating plate (43) is rotatably connected with a rotating rod (5) through the shaft respectively, the slide rod (4) is slidably sleeved with the handle tube (3), two hinge seats (32) are fixed on the handle tube (3), and the hinge seat (32) is rotatably connected with a rotating rod (5) through the shaft.

2. A three-phase short-circuit fast-acting lock-and-ground device according to claim 1, characterized in that: The branch line (21) is fixed with an electrode sheet (22) away from the ground wire (2) one end, and the electrode sheet (22) is connected with the J-shaped buckle (61) through bolt thread.

3. A three-phase short-circuit fast-acting lock-and-ground device according to claim 1, characterized in that: The handle tube (3) is threadedly installed with a lock rod (31), a plurality of positioning holes (41) are formed in the slide rod (4), and the lock rod (31) is threadedly installed in any positioning hole (41).

4. A three-phase short-circuit fast-acting lock-and-ground device according to claim 1, characterized in that: The slide rod (4) is fixed with an oval block (42) at one end, the oval block (42) is provided with a through hole (421), and the ground wire (2) is movably penetrated through the through hole (421) of the oval block (42).

5. A three-phase short-circuit fast-acting lock-and-ground device according to claim 1, characterized in that: The J-shaped buckle (61) is provided with an arc-shaped groove (611), one end of the arc-shaped lock strip (62) is rotatably arranged in the arc-shaped groove (611), and the J-shaped buckle (61) is provided with a rectangular through groove (612) at each E-shaped seat (63).

6. A three-phase short-circuit fast-acting lock-and-ground device according to claim 5, characterized in that: V-shaped wire inlet (621) and V-shaped wire locking groove (622) are formed between the two arc-shaped lock strips (62) and the J-shaped buckle (61).

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