CN217768020U

CN217768020U - Voltage-equalizing ball for high-voltage pipe sleeve of transformer

Info

Publication number: CN217768020U
Application number: CN202221466738.3U
Authority: CN
Inventors: 张正华
Original assignee: Yangzhou Xinlong Electric Co ltd
Current assignee: Yangzhou Xinlong Electric Co ltd
Priority date: 2022-06-13
Filing date: 2022-06-13
Publication date: 2022-11-08
Anticipated expiration: 2032-06-13

Abstract

The utility model relates to the technical field of transformer accessories, in particular to a pressure equalizing ball for a transformer high-voltage pipe sleeve, which comprises an equipment main body, wherein a base is inserted in the equipment main body, a sleeve core body is fixedly connected to the upper surface of the base, a guide rod is inserted in the sleeve core body, the lower end of the guide rod is positioned in the equipment main body, a locking mechanism is slidably connected in the outer surface of the equipment main body, and a positioning mechanism is inserted in the lower end of the equipment main body; the utility model discloses a mutually supporting and the transmission between locking mechanism and the equipment mechanism through setting up, the pipe box of solving the existence is fixed, dismantle loaded down with trivial details problem, because the effect of power is mutual, receives the influence that the auto-lock spring restored power, makes the auto-lock spring drive carry out the recovery formula from the jam plate and rotates, makes then the inside multiunit of equipment principal from the jam plate carry out the centre gripping to the base fixed, so reaches the effect of being connected pipe box and equipment principal fast.

Description

Voltage-equalizing ball for high-voltage pipe sleeve of transformer

Technical Field

The utility model relates to a transformer accessory technical field especially relates to a transformer is voltage-sharing ball for high-pressure pipe box.

Background

In an oil-immersed transformer with the rated voltage of more than 500kv, the electric field distribution is extremely uneven, so that a metal shielding device with large curvature radius and electrically connected with an outgoing line, commonly called a voltage-equalizing ball, needs to be arranged at the end part of the outgoing line bushing, the voltage-equalizing ball of the transformer is an annular steel ring arranged at the top of an insulator bushing, and due to the action of the ground distributed capacitor, when the insulator is struck by lightning, the voltage distribution born by the insulator is uneven, and most of the voltage drop is distributed in a short distance at one end of the insulator which is struck by lightning;

however, the existing transformer bushing and the equalizing ball are connected by bolts, and the bolt connection in a limited space causes the disassembly and assembly work to become relatively complicated and inconvenient;

in view of the above technical drawbacks, a solution is proposed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a pressure equalizing ball for a transformer high-pressure pipe sleeve, which solves the technical defects, and solves the problems of pipe sleeve fixation and complex disassembly through the mutual matching and transmission between the locking mechanism and the equipment mechanism; through mutually supporting and the transmission between the positioning mechanism who sets up and the equipment mechanism, solve the inconvenient problem of equipment main part installation, dismantlement that exists.

The purpose of the utility model can be realized by the following technical proposal: a pressure equalizing ball for a transformer high-pressure pipe sleeve comprises an equipment main body, wherein a base is inserted into the equipment main body, a sleeve core body is fixedly connected to the upper surface of the base, a guide rod is inserted into the sleeve core body, the lower end of the guide rod is located inside the equipment main body, a locking mechanism is connected to the inner part of the outer surface of the equipment main body in a sliding mode, and a positioning mechanism is inserted into the lower end of the equipment main body;

locking mechanism includes annular slide, the inner wall fixedly connected with extrusion piece of annular slide, the inside one side that is located extrusion piece of equipment main part rotates and is connected with the auto-lock board, and the auto-lock board mutually supports with extrusion piece, the auto-lock board is close to one side fixedly connected with auto-lock spring of extrusion piece.

Preferably, the positioning mechanism comprises a positioning pin, one end of the positioning pin, which is located inside the equipment main body, is symmetrically and movably connected with crank connecting rods, two ends of the crank connecting rods, which are away from the positioning pin, are respectively and movably connected with a guide sliding block, the upper surface of the guide sliding block is fixedly connected with a positioning clamping plate, one side of the positioning clamping plate, which is close to the inner wall of the equipment main body, is fixedly connected with a positioning spring, and a fixed guide rail is inserted into the positioning clamping plate.

Preferably, one side of the fixed guide rail is fixedly connected with the inner wall of the equipment main body, the fixed guide rail is symmetrically arranged with the center line of the equipment main body, and one end of the positioning spring, far away from the positioning clamping plate, is fixedly connected with the inner wall of the equipment main body.

Preferably, the number of the positioning clamping plates is two, the appearance is the same, the size is the same, through holes matched with the positioning pins are symmetrically formed in the equipment main body, a plurality of grooves are uniformly formed in the equipment main body, and the grooves are matched with the self-locking plates.

Preferably, the end, far away from the auto-lock board, of the auto-lock spring is fixedly connected with the inner wall of the equipment main body, the guide sliding blocks are symmetrically arranged with the central line of the equipment main body, and the guide sliding blocks are in sliding connection with the fixed guide rails.

The utility model has the advantages as follows:

(1) The locking mechanism and the equipment mechanism are matched and driven with each other, so that the problem that pipe sleeves are fixed and disassembled complicatedly is solved, and the self-locking springs drive the self-locking plates to perform recovery type rotation under the influence of the restoring force of the self-locking springs due to the mutual action of the forces, so that a plurality of groups of self-locking plates in the equipment main body clamp and fix the base, and the effect of quickly connecting the pipe sleeves and the equipment main body is achieved;

(2) Through mutually supporting and the transmission between the positioning mechanism who sets up and the equipment mechanism, solve the equipment main part installation that exists, dismantle inconvenient problem, make the direction slider drive the location cardboard slide in fixed guide's outside, make both sides location cardboard and mounting contact to carry out spacing fixed to the equipment main part, so reach the effect of installing the equipment main part fast.

Drawings

The present invention will be further described with reference to the accompanying drawings;

FIG. 1 is a perspective view showing the structure of the present invention;

fig. 2 is a schematic structural diagram of the locking mechanism of the present invention;

FIG. 3 is an enlarged view of area A of FIG. 2 according to the present invention;

fig. 4 is a schematic structural view of the positioning mechanism of the present invention;

fig. 5 is a bottom view of the structure of the present invention.

Illustration of the drawings: 1. an apparatus main body; 2. a base; 3. a bushing core; 4. a guide bar; 5. a locking mechanism; 6. an annular slide plate; 7. extruding the block; 8. a self-locking plate; 9. a self-locking spring; 10. a positioning mechanism; 11. positioning pins; 12. a crank connecting rod; 13. a guide slider; 14. positioning a clamping plate; 15. a positioning spring; 16. and fixing the guide rail.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1:

referring to fig. 1-5, the utility model relates to a pressure equalizing ball for transformer high-voltage tube, which comprises an apparatus main body 1, a base 2 is inserted in the apparatus main body 1, a sleeve core 3 is fixedly connected to the upper surface of the base 2, a guide rod 4 is inserted in the sleeve core 3, the lower end of the guide rod 4 is located in the apparatus main body 1, a locking mechanism 5 is slidably connected in the outer surface of the apparatus main body 1, a positioning mechanism 10 is inserted in the lower end of the apparatus main body 1, when the sleeve is installed, the sleeve is fixed by a manual mode, i.e. the locking mechanism 5 is manually controlled to work, the locking mechanism 5 comprises an annular slide plate 6, an extrusion block 7 is fixedly connected to the inner wall of the annular slide plate 6, a self-locking plate 8 is rotatably connected to one side of the extrusion block 7 in the apparatus main body 1, and the self-locking plate 8 is matched with the extrusion block 7, one side of the self-locking plate 8 close to the extrusion block 7 is fixedly connected with a self-locking spring 9, one end of the self-locking spring 9 far away from the self-locking plate 8 is fixedly connected with the inner wall of the equipment main body 1, a plurality of grooves are uniformly formed in the equipment main body 1, the grooves are matched with the self-locking plate 8, namely, the base 2 is inserted into the equipment main body 1, before the guide rod 4 is inserted into the equipment main body 1, the annular sliding plate 6 is rotated in a manual mode, the annular sliding plate 6 drives the extrusion block 7 to rotate, the extrusion block 7 moves in the grooves in the equipment main body 1, along with the movement of the extrusion block 7, the extrusion block 7 pushes the self-locking plate 8 in the movement process, the self-locking plate 8 rotates in the equipment main body 1 immediately, and meanwhile, the self-locking spring 9 on one side is extruded, the self-locking spring 9 is elastically deformed, and then the base 2 is inserted into the equipment main body 1, loosen annular slide 6 this moment, because the effect of power is mutual, receives the influence that self-locking spring 9 restored power, makes self-locking spring 9 drive from jam plate 8 and carries out the recovery formula and rotate, makes 1 inside multiunit of equipment main part then from jam plate 8 carry out the centre gripping fixed to base 2, so reach the effect of being connected pipe box and equipment main part 1 fast, solve the pipe box that exists fixed, dismantle loaded down with trivial details problem.

Example 2:

when the existing pressure equalizing ball is installed, a circle of bolts are often adopted for locking and fixing, so that the installation process is complicated, and the disassembly and the replacement are inconvenient, and therefore, the existing problems are urgently needed to be solved;

when the equipment main body 1 is installed, the equipment main body 1 is installed in a manual mode, namely the manual operation positioning mechanism 10 works, the positioning mechanism 10 comprises positioning pins 11, through holes matched with the positioning pins 11 are symmetrically formed in the equipment main body 1, crank connecting rods 12 are symmetrically and movably connected to one ends of the positioning pins 11, which are positioned in the equipment main body 1, guide sliders 13 are movably connected to one ends of the two crank connecting rods 12, which are far away from the positioning pins 11, the guide sliders 13 are symmetrically arranged with respect to the center line of the equipment main body 1, the guide sliders 13 are slidably connected with fixed guide rails 16, positioning clamping plates 14 are fixedly connected to the upper surfaces of the guide sliders 13, the number of the positioning clamping plates 14 is two, the appearance is the same, the size is the same, positioning springs 15 are fixedly connected to one side, which is close to the inner wall of the equipment main body 1, one ends, which are far away from the positioning clamping plates 14, are fixedly connected with the inner wall of the equipment main body 1, the inside of the positioning clamping plate 14 is inserted with a fixed guide rail 16, one side of the fixed guide rail 16 is fixedly connected with the inner wall of the equipment main body 1, and the fixed guide rail 16 is symmetrically arranged with the central line of the equipment main body 1, namely, the positioning pins 11 at two sides are manually extruded, so that the positioning pins 11 drive the crank connecting rod 12 to move, the crank connecting rod 12 expands outwards, the crank connecting rod 12 further pushes the guide slider 13 to slide outside the fixed guide rail 16, meanwhile, the guide slider 13 drives the positioning clamping plate 14 to move towards the direction close to the inner wall of the equipment main body 1, so that the positioning spring 15 elastically deforms, and simultaneously, the gap between the two positioning clamping plates 14 inside the equipment main body 1 is enlarged, thereby conveniently placing the equipment main body 1 at a designated position, placing the equipment main body 1 at the outside of a fixed part at the designated position, the positioning pins 11 are loosened, and the functions of the forces are mutual, so that the guide sliding blocks 13 drive the positioning clamping plates 14 to slide outside the fixed guide rails 16, the positioning clamping plates 14 on the two sides are in contact with the fixing piece, the equipment main body 1 is limited and fixed, the effect of quickly installing the equipment main body 1 is achieved, and the problem that the existing equipment main body 1 is inconvenient to install and disassemble is solved.

The utility model discloses a working process and principle as follows:

before the guide rod 4 is inserted into the equipment main body 1, the annular sliding plate 6 is rotated manually, the annular sliding plate 6 drives the extrusion block 7 to rotate, the extrusion block 7 moves in a groove in the equipment main body 1, the extrusion block 7 pushes the self-locking plate 8 in the moving process, the self-locking plate 8 immediately rotates in the equipment main body 1, the self-locking spring 9 on one side is extruded simultaneously, the base 2 is inserted into the equipment main body 1, the annular sliding plate 6 is loosened at the moment, and the self-locking spring 9 drives the self-locking plate 8 to perform recovery rotation under the influence of the recovery force of the self-locking spring 9 due to the mutual action of the force, so that a plurality of groups of self-locking plates 8 in the equipment main body 1 clamp and fix the base 2, the effect of quickly connecting the pipe sleeve with the equipment main body 1 is achieved, and the problems of pipe sleeve fixation and complex disassembly are solved;

through the locating pin 11 of manual extrusion both sides, make locating pin 11 drive crank connecting rod 12 and move, make crank connecting rod 12 outside side-in expand, and then make crank connecting rod 12 promote direction slider 13 and slide in the outside of fixed guide 16, make direction slider 13 drive location cardboard 14 and move to the direction that is close to equipment main part 1 inner wall simultaneously, make positioning spring 15 take place elastic deformation, make the clearance grow between two inside location cardboards 14 of equipment main part 1 simultaneously, place equipment main part 1 behind the outside of assigned position department mounting, loosen locating pin 11, because the effect of power is mutual, make direction slider 13 drive location cardboard 14 and slide in the outside of fixed guide 16, make both sides location cardboard 14 and mounting contact, thereby carry out spacing fixed to equipment main part 1, so reach the effect of installing equipment main part 1 fast, solve the inconvenient problem of equipment main part 1 installation, dismantle that exists.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The pressure equalizing ball for the high-voltage tube sleeve of the transformer comprises an equipment main body (1) and is characterized in that a base (2) is inserted into the equipment main body (1), a sleeve tube core body (3) is fixedly connected to the upper surface of the base (2), a guide rod (4) is inserted into the sleeve tube core body (3), the lower end of the guide rod (4) is located inside the equipment main body (1), a locking mechanism (5) is connected to the inner portion of the outer surface of the equipment main body (1) in a sliding mode, and a positioning mechanism (10) is inserted into the lower end of the equipment main body (1);

locking mechanism (5) are including annular slide (6), the inner wall fixedly connected with extrusion piece (7) of annular slide (6), one side that the inside of equipment main part (1) is located extrusion piece (7) is rotated and is connected with from jam plate (8), and from jam plate (8) and extrusion piece (7) mutually support, from jam plate (8) are close to one side fixedly connected with auto-lock spring (9) of extrusion piece (7).

2. The voltage-sharing ball for the high-voltage pipe sleeve of the transformer according to claim 1, wherein the positioning mechanism (10) comprises a positioning pin (11), one end of the positioning pin (11) located inside the main body (1) of the device is symmetrically and movably connected with crank connecting rods (12), one ends of the two crank connecting rods (12) far away from the positioning pin (11) are both movably connected with guide sliding blocks (13), the upper surface of each guide sliding block (13) is fixedly connected with a positioning clamping plate (14), one side of each positioning clamping plate (14) close to the inner wall of the main body (1) of the device is fixedly connected with a positioning spring (15), and a fixed guide rail (16) is inserted inside the positioning clamping plate (14).

3. The voltage-sharing ball for the high-voltage pipe sleeve of the transformer as claimed in claim 2, wherein one side of the fixed guide rail (16) is fixedly connected with the inner wall of the main body (1), the fixed guide rail (16) is symmetrically arranged with respect to the center line of the main body (1), and one end of the positioning spring (15) far away from the positioning clamping plate (14) is fixedly connected with the inner wall of the main body (1).

4. The voltage-sharing ball for the high-voltage pipe sleeve of the transformer as claimed in claim 2, wherein the number of the positioning clamping plates (14) is two, the shapes of the positioning clamping plates are the same, the sizes of the positioning clamping plates are the same, through holes matched with the positioning pins (11) are symmetrically formed in the device main body (1), a plurality of grooves are uniformly formed in the device main body (1), and the grooves are matched with the self-locking plates (8).

5. The voltage-sharing ball for the high-voltage pipe sleeve of the transformer according to claim 2, wherein one end of the self-locking spring (9) far away from the self-locking plate (8) is fixedly connected with the inner wall of the equipment main body (1), the guide sliders (13) are symmetrically arranged with respect to the center line of the equipment main body (1), and the guide sliders (13) are slidably connected with the fixed guide rail (16).