CN217690827U

CN217690827U - Plum blossom contact

Info

Publication number: CN217690827U
Application number: CN202123392747.0U
Authority: CN
Inventors: 罗有军; 张扬
Original assignee: Yangzhou Luoman Bearing Co ltd
Current assignee: Yangzhou Luoman Bearing Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-10-28
Anticipated expiration: 2031-12-30

Abstract

A tulip contact. Relate to power fitting technical field. Reasonable structure and convenient maintenance. The device comprises a support frame, a contact flap and a spring, wherein a tensioning mechanism is arranged between the head end and the tail end of the spring; the tensioning mechanism comprises an outer sleeve and an inner sleeve, wherein the openings of the outer sleeve and the inner sleeve are arranged oppositely, a pair of limiting strips is symmetrically arranged on the inner wall of the inner sleeve, a pair of limiting grooves is symmetrically arranged on the outer wall of the outer sleeve, and the pair of limiting strips are respectively arranged in the pair of limiting grooves in a one-to-one correspondence manner; the inner sleeve is internally provided with a threaded rod, the other end of the threaded rod is provided with a turntable protruding out of the inner sleeve, the other end of the threaded rod is adaptively and spirally provided with a threaded sleeve, and the threaded sleeve is arranged in the outer sleeve through a fixing plate.

Description

Plum blossom contact

Technical Field

The utility model relates to an electric power accessory technical field, concretely relates to plum blossom contact.

Background

The connection of the movable contact and the fixed contact on the switch cabinet of the power station and the handcart is realized through the plum blossom contact. The plum blossom contact is specifically by a plurality of contact lamellas and the spring that support and circumference were arranged and constitute, and plum blossom contact lamella installs behind the support and cramps through the spring to make the plum blossom contact firmly connect on the movable contact arm.

However, after long-time use, the locking effect of the spring on the contact flap is reduced, and the spring is generally replaced for maintenance, so that the operation amount is large, the replacement is complex, the movable contact and the fixed contact are required to be disconnected, and the efficiency is low.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model provides a plum blossom contact which is reasonable in structure and convenient to maintain.

The utility model discloses a following technical scheme realizes: the plum blossom contact comprises a support frame, a contact petal and a spring, wherein a tensioning mechanism is arranged between the head end and the tail end of the spring;

the tensioning mechanism comprises an outer sleeve and an inner sleeve, wherein the openings of the outer sleeve and the inner sleeve are arranged oppositely, a pair of limiting strips is symmetrically arranged on the inner wall of the inner sleeve, a pair of limiting grooves is symmetrically arranged on the outer wall of the outer sleeve, and the pair of limiting strips are respectively arranged in the pair of limiting grooves in a one-to-one correspondence manner;

the inner sleeve is internally provided with a threaded rod, the other end of the threaded rod is provided with a turntable protruding out of the inner sleeve, the other end of the threaded rod is adaptively and spirally provided with a threaded sleeve, and the threaded sleeve is arranged in the outer sleeve through a fixing plate.

The utility model discloses a preferred embodiment lies in, the fixed plate with the inner wall fixed connection of outer sleeve, the screw thread cover is worn to be established the middle part of fixed plate, and with fixed plate fixed connection.

The preferred embodiment of the present invention is that the inner sleeve is in a flat tube shape, and the outer diameter of the turntable is larger than the minimum inner diameter of the inner sleeve and smaller than the maximum inner diameter of the inner sleeve.

The utility model discloses a preferred embodiment lies in, still be equipped with the backup pad in the inner skleeve, the middle part of backup pad is equipped with the perforation, the threaded rod passes the perforation, the external diameter of threaded rod is less than fenestrate internal diameter.

The preferred embodiment of the present invention is that the head end of the spring is fixedly connected to the side wall of the outer sleeve, and the tail end of the spring is fixedly connected to the side wall of the inner sleeve.

Compared with the prior art, the utility model discloses at work, rotate the carousel for the threaded rod rotates, and the rotation of threaded rod can produce the pulling force to the fixed plate, and then makes the outer sleeve remove towards the inside of inner skleeve, like this, has realized the spring and has lengthened the spring to a certain extent, thereby makes the spring resume the clamp elasticity to touching the lamella, and is rational in infrastructure, has prolonged the live time of spring, and it is convenient to maintain.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic structural view of the take-up mechanism;

in the figure: 1. a support frame; 2. touching the valve; 3. a spring; 4. an outer sleeve; 5. an inner sleeve; 6. a limiting strip; 7. a limiting groove; 8. a threaded rod; 9. a turntable; 10. a threaded sleeve; 11. a fixing plate; 12. and a support plate.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

As shown in fig. 1-2, the tulip contact comprises a support frame 1, a contact petal 2 and a spring 3, wherein a tensioning mechanism is arranged between the head end and the tail end of the spring 3;

the tensioning mechanism comprises an outer sleeve 4 and an inner sleeve 5, the openings of the outer sleeve 4 and the inner sleeve 5 are opposite, a pair of limiting strips 6 is symmetrically arranged on the inner wall of the inner sleeve 5, a pair of limiting grooves 7 is symmetrically arranged on the outer wall of the outer sleeve 4, and the pair of limiting strips 6 are respectively arranged in the pair of limiting grooves 7 in a one-to-one correspondence manner;

be equipped with threaded rod 8 in the inner skleeve 5, the other end of threaded rod 8 is equipped with the carousel 9 of protrusion to the inner skleeve 5 outside, threaded bush 10 is equipped with soon to the other end adaptation of threaded rod 8, threaded bush 10 is located through fixed plate 11 in the outer skleeve 4. After long-time the use, spring 3's clamp power descends, rotate carousel 9, make threaded rod 8 rotate, because threaded rod 8 can't take place to move from opposite directions, and threaded rod 8 top spin is equipped with thread bush 10, simultaneously, under spacing 6 and spacing groove 7's cooperation, threaded rod 8's rotation can produce the pulling force to fixed plate 11, and then make outer sleeve 4 remove towards the inside of inner skleeve 5, and thus, realized spring 3 at the certain degree extension spring 3, thereby make spring 3 resume the clamp elasticity to touch lamella 2, and is rational in infrastructure, spring 3's live time has been prolonged, and convenient maintenance.

The fixing plate 11 is fixedly connected with the inner wall of the outer sleeve 4, and the threaded sleeve 10 penetrates through the middle of the fixing plate 11 and is fixedly connected with the fixing plate 11. The fixed plate 11 is fixedly connected with the inner wall of the outer sleeve 4, and the outer sleeve 4 can move towards the inner part of the inner sleeve 5 by pulling the fixed plate 11 by the threaded rod 8.

The inner sleeve 5 is flat tube-shaped, and the outer diameter of the rotary table 9 is larger than the minimum inner diameter of the inner sleeve 5 and smaller than the maximum inner diameter of the inner sleeve 5. In this way, the turntable 9 may extend partly outside the inner sleeve 5, thereby enabling a fast rotation of the turntable 9.

A supporting plate 12 is further arranged in the inner sleeve 5, a through hole is formed in the middle of the supporting plate 12, the threaded rod 8 penetrates through the through hole, and the outer diameter of the threaded rod 8 is smaller than the inner diameter of the through hole. Through the setting of backup pad 12, improved the supporting role to threaded rod 8, ensured that threaded rod 8 can reliably rotate.

The head end of the spring 3 is fixedly connected with the side wall of the outer sleeve 4, and the tail end of the spring 3 is fixedly connected with the side wall of the inner sleeve 5. Thus, the spring 3 is reliably connected with the tensioning mechanism, and the tensioning action of the tensioning mechanism is ensured to extend the spring 3 and improve the clamp elasticity of the contact valve 2.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. The plum blossom contact comprises a support frame, a contact petal and a spring, and is characterized in that a tensioning mechanism is arranged between the head end and the tail end of the spring;

the tensioning mechanism comprises an outer sleeve and an inner sleeve, openings of the outer sleeve and the inner sleeve are oppositely arranged, a pair of limiting strips is symmetrically arranged on the inner wall of the inner sleeve, a pair of limiting grooves is symmetrically arranged on the outer wall of the outer sleeve, and the pair of limiting strips are respectively arranged in the pair of limiting grooves in a one-to-one correspondence manner;

be equipped with the threaded rod in the inner skleeve, the other end of threaded rod is equipped with the carousel of protrusion to the inner skleeve outside, the other end adaptation ground of threaded rod is equipped with the thread bush soon, the thread bush is located through the fixed plate in the outer skleeve.

2. The tulip contact of claim 1, wherein: the fixed plate is fixedly connected with the inner wall of the outer sleeve, and the thread is sleeved in the middle of the fixed plate and fixedly connected with the fixed plate.

3. The tulip contact of claim 1, wherein: the inner sleeve is flat tubular, and the external diameter of carousel is greater than the minimum internal diameter of inner sleeve just is less than the biggest internal diameter of inner sleeve.

4. The tulip contact of claim 1, wherein: still be equipped with the backup pad in the inner skleeve, the middle part of backup pad is equipped with the perforation, the threaded rod passes the perforation, the external diameter of threaded rod is less than fenestrate internal diameter.

5. The tulip contact of claim 1, wherein: the head end of the spring is fixedly connected with the side wall of the outer sleeve, and the tail end of the spring is fixedly connected with the side wall of the inner sleeve.