CN111843906A - A plum-blossom contact disassembly device - Google Patents

Abstract

The invention discloses a plum blossom contact dismounting device; the device comprises a turntable and a fixed disk positioned below the turntable, wherein the bottom surface of the turntable is provided with Archimedes spiral lines, the top surface of the fixed disk is provided with a plurality of tracks, the device also comprises a plurality of sliding blocks, one sliding block is arranged corresponding to one track, the sliding blocks are movably arranged in the tracks, the top surface of each sliding block is provided with a spiral groove which is spirally matched with the Archimedes spiral lines, and the outer ends of the sliding blocks extend out of the side surface of the fixed disk; the turntable is rotated in the forward direction, and the sliding block gradually slides out of the track; the rotating disc is rotated reversely, the sliding block gradually retracts into the track, and the plum blossom contact is quickly and effectively dismounted by adopting the dismounting device.

Description

A plum-blossom contact disassembly device

technical field

The invention relates to a disassembly and assembly device, in particular to a plum blossom contact disassembly and assembly device.

Background technique

The plum-blossom contact is one of the most commonly used components in high-voltage electrical appliances. It is used to electrically connect the movable contact arm and the static contact device of the circuit breaker in the power industry. Several contact pieces placed and a multi-turn spring outside the contact pieces. When used on the switch cabinet, the front side of the plum-blossom contact is sleeved on the movable contact arm, and the static contact is inserted from the rear side of the plum-blossom contact. The conductive layer on the inner side wall of the placed contact piece keeps falling off, which leads to the damage and aging of the plum blossom contact. Therefore, it needs to be repaired or replaced frequently.

However, considering the special structure of the plum-blossom contact, it is difficult to disassemble and assemble. The traditional way is to directly pry open the spring on the back side of the plum-blossom contact, then press hard on the front side of the plum-blossom contact, and at the same time overcome the tight force of the spring on the front side to open the contact to complete the disassembly and assembly. The method usually needs to easily cause the deformation of the contact piece, resulting in poor contact of the conductive part, and failures such as the burning of the plum-blossom contact, resulting in potential safety hazards.

SUMMARY OF THE INVENTION

The purpose of the present invention is to solve the problems existing in the prior art, and to provide a plum-blossom contact disassembly and assembly device, which has a simple structure and can be disassembled and assembled quickly.

The adopted technical scheme that the present invention solves its technical problem is:

A plum-blossom contact disassembly and assembly device; comprising a turntable and a fixed plate below the turntable, the bottom surface of the turntable is provided with an Archimedes spiral, and the Archimedes spiral takes the center of the bottom surface of the turntable as a starting point and gradually Diffusion towards the outside of the turntable, the top surface of the fixed plate is provided with a number of rails, a number of the rails are evenly distributed radially from the center of the top surface of the fixed plate, and the outer end of the rail extends to the side of the fixed plate, It also includes a number of sliders, one slider is placed corresponding to a track, the slider is movably arranged in the track, the top surface of the slider is provided with a screw groove that is screwed with the Archimedes spiral, the slider The outer end of the rotating plate protrudes from the side of the fixed plate; when the rotating plate is rotated in the forward direction, the slider gradually slides out of the track; when the rotating plate is rotated in the reverse direction, the slider gradually retracts into the track.

In a preferred embodiment, it also includes a rotating rod connected to the center of the bottom surface of the turntable, the rotating rod is perpendicular to the rotating disk, a through hole is provided in the middle of the fixed disk, the rotating rod passes through the through hole downward, and the fixed disk is A bearing is provided between the rotating rod.

In a preferred embodiment, the lower end of the rotating rod is provided with a slot, and a handle is rotatably connected in the slot, and the handle can be rotated to a direction perpendicular to the rotating rod or stored in the slot.

In a preferred embodiment, a locking structure is also included, and the locking structure locks the turntable and the fixed disk together to keep the Archimedes screw in screwed connection with the screw groove.

In a preferred embodiment, the locking structure includes a card slot provided on the rotating rod and a snap spring fastened to the snap slot, the snap spring abuts against the bottom surface of the fixing plate.

In a preferred embodiment, the Archimedes spiral of the turntable and the screw groove of the slider are self-locking.

In a preferred embodiment, a top block is provided at the outer end of the slider, and the top block has an arc-shaped structure and is arranged along the circumferential direction where the outer side surface of the fixed plate is located.

In a preferred embodiment, the outer side of the top block is provided with a rubber pad.

In a preferred embodiment, an arc-shaped accommodating groove is provided along the outer surface of the fixing plate corresponding to the top block.

In a preferred embodiment, there are 6 tracks and 6 sliders.

Compared with the background technology, the technical solution of the present invention has the following advantages:

The disassembly and assembly device of the present invention can be inserted into the plum-blossom contact from the rear side, and then the turntable is rotated. Since the Archimedes screw on the turntable is engaged with the screw groove of the slider, the slider protrudes from the side wall of the fixed disk and Press the inner side wall of the contact piece slowly to open the contact piece smoothly and smoothly. Further, remove the plum blossom contact from the movable contact arm for maintenance or replacement, and the disassembly device can be driven by turning it. The transmission is stable and not stuck, and it is fast and labor-saving. Compared with the prior art, the contact piece does not need to be opened during the disassembly and assembly process, the damage to the contact piece is low, and it can be operated by a single person, which improves the work efficiency and greatly shortens the time required for the disassembly and assembly work.

Description of drawings

The present invention will be further described below with reference to the accompanying drawings and embodiments.

Fig. 1 is the explosion of the plum-blossom contact disassembly and assembly device of the present invention.

Fig. 2 is a three-dimensional view of the quincunx contact disassembly and assembly device of the present invention.

FIG. 3 is a schematic diagram of a fixed plate of the quincunx contact disassembly and assembly device of the present invention.

Reference numerals: 100 turntable, 110 Archimedes spiral, 200 fixed disk, 210 track, 220 slider, 221 screw groove, 222 top block, 300 rotating rod, 310 retaining spring, 320 slot, 330 handle.

Detailed ways

Referring to FIGS. 1 to 3 , a plum-blossom contact disassembly and assembly device of the present invention includes a turntable 100 and a fixed disc 200 located below the turntable 100 , and the bottom surface of the turntable 100 is provided with an Archimedes screw 110. The Archimedes spiral 110 takes the center of the bottom surface of the turntable 100 as a starting point and gradually spreads toward the outside of the turntable 100. The trajectory produced by the rotation of the angular velocity around the fixed point. The top surface of the fixed plate 200 is provided with a plurality of rails 210 , the plurality of rails 210 are evenly distributed radially from the center of the top surface of the fixed plate 200 , and the outer ends of the rails 210 extend to the side of the fixed plate 200 , and also Including a plurality of sliders 220, a slider 220 is placed corresponding to a track 210, the slider 220 is movably arranged in the track 210, and the top surface of the slider 220 is provided with the Archimedes spiral 110. The screw groove 221, the Archimedes spiral 110 of the turntable 100 and the screw groove 221 of the slider 220 are self-locking, the outer end of the slider 220 protrudes from the side of the fixed disk 200, and the slider The outer end of 220 is provided with a top block 222. The top block 222 has an arc-shaped structure and is arranged along the circumferential direction of the outer side of the fixed plate 200. The top block 222 is used to increase the force bearing area with the contact piece, so that the The contact pieces can be smoothly unfolded; the outer surface of the fixed plate 200 is also provided with an arc-shaped receiving groove corresponding to the top block 222 , the receiving groove is not shown in the figure; Slide out the track 210; rotate the turntable 100 in the opposite direction, the slider 220 is gradually retracted into the track 210, and the disassembly device can be driven by rotation, so as to open the contact piece smoothly and smoothly. Remove the plum-blossom contact from the movable contact arm for maintenance or replacement. The device has stable transmission, fast and labor-saving. Also includes a rotating rod 300 connected to the center of the bottom surface of the turntable 100, the rotating rod 300 is perpendicular to the rotating disk 100, a through hole is provided in the middle of the fixed disk 200, the rotating rod 300 passes downward through the through hole, the fixed disk 200 There is a bearing between the rotating rod 300 and a locking structure, the locking structure locks the rotating plate 100 and the fixed plate 200 together to keep the Archimedes spiral 110 and the screw groove 221 screwed together. combine. The lower end of the rotating rod 300 is also provided with a slot 320, and a handle 330 is rotatably connected in the slot 320. The handle 330 can be rotated to a direction perpendicular to the rotating rod 300 or stored in the slot 320, and the handle 330 can be rotated. When the direction is perpendicular to the rotating rod 300 , the rotating rod 300 can be easily rotated, thereby driving the rotating disk 100 to rotate and driving the sliding block 220 to slide.

In this embodiment, the locking structure includes a card slot provided on the rotating rod 300 and a snap spring 310 fastened to the card slot, and the snap spring 310 abuts against the bottom surface of the fixing plate 200 .

In this embodiment, the number of the rails 210 is six, and the number of the sliders 220 is six. The turntable 100 and the fixed disk 200 are both circular, and correspondingly, the top block 222 has an arc-shaped structure. In actual processing, the turntable and the fixed disk can also be polygons such as quadrilateral or hexagonal as required. , correspondingly, the top block 222 has a rectangular structure.

The above descriptions are only preferred embodiments of the present invention, so the scope of implementation of the present invention cannot be limited accordingly, that is, equivalent changes and modifications made according to the patent scope of the present invention and the contents of the description should still be covered by the present invention. within the range.

Claims (10)

1. The utility model provides a plum blossom contact dismouting device which characterized in that: the device comprises a turntable and a fixed disk positioned below the turntable, wherein the bottom surface of the turntable is provided with Archimedes spiral lines which gradually diffuse towards the outer side of the turntable by taking the center of the bottom surface of the turntable as a starting point, the top surface of the fixed disk is provided with a plurality of tracks, the tracks are uniformly distributed in a radial manner by taking the center of the top surface of the fixed disk, the outer ends of the tracks extend to the side surface of the fixed disk, the device also comprises a plurality of sliding blocks, one sliding block is arranged corresponding to one track, the sliding blocks are movably arranged in the tracks, the top surface of each sliding block is provided with a spiral groove which is spirally combined with the Archimedes spiral lines, and the outer ends of the sliding blocks extend out of the side surface of the fixed; the turntable is rotated in the forward direction, and the sliding block gradually slides out of the track; when the rotating disc is rotated reversely, the sliding block gradually retracts into the track.

2. The tulip contact disassembling and assembling device of claim 1, wherein: the rotary table further comprises a rotary rod connected to the center of the bottom surface of the rotary table, the rotary rod is perpendicular to the rotary table, a through hole is formed in the middle of the fixed disc, the rotary rod penetrates through the through hole downwards, and a bearing is arranged between the fixed disc and the rotary rod.

3. The tulip contact disassembling and assembling device of claim 2, wherein: the lower end of the rotating rod is provided with a groove, a handle is rotationally connected in the groove, and the handle can be rotated to the direction vertical to the rotating rod or can be accommodated in the groove.

4. The tulip contact disassembling and assembling device of claim 3, wherein: the locking structure locks the turntable and the fixed disk together to keep the Archimedes spiral and the spiral groove screwed together.

5. The tulip contact disassembling and assembling device of claim 4, wherein: this locking structure is including setting up draw-in groove and the jump ring of lock joint on this draw-in groove on this bull stick, and this jump ring supports and leans on the bottom surface at this fixed disk.

6. The tulip contact disassembling and assembling device of claim 4, wherein: the Archimedes spiral of the turntable and the screw groove of the sliding block have self-locking property.

7. The tulip contact disassembling and assembling device of claim 1, wherein: the outer end of the sliding block is provided with a top block which is of an arc-shaped structure and is arranged along the circumferential direction of the outer side surface of the fixed disc.

8. The tulip contact disassembling and assembling device of claim 7, wherein: the outer side surface of the top block is provided with a rubber pad.

9. The tulip contact disassembling and assembling device of claim 7, wherein: an arc-shaped containing groove is arranged on the outer side surface of the fixed disc corresponding to the ejector block.

10. The tulip contact disassembling and assembling device of claim 8, wherein: the number of the tracks is 6, and the number of the sliding blocks is 6.

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