CN219811674U

CN219811674U - Screw spring type wiring terminal with improved structure

Info

Publication number: CN219811674U
Application number: CN202223539358.0U
Authority: CN
Inventors: 林丽云; 梁继栋; 邓永其; 汪晨晨; 宋海贤
Original assignee: Dinkle M&e China Co ltd
Current assignee: Dinkle M&e China Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-10-10
Anticipated expiration: 2032-12-29

Abstract

The utility model discloses a screw bouncing type wiring terminal with an improved structure, which comprises an insulating body, a washer, screws, a conductive plate and a spring, wherein the conductive plate is fixed in the insulating body, a threaded hole and an avoidance hole are formed in the conductive plate, a connection through hole is formed in the washer, the screws penetrate through the connection through hole of the washer and are in threaded connection with the threaded hole in the conductive plate, washer pins are fixedly arranged on one side of the washer, which is positioned on the connection through hole, a body positioning groove is formed in the insulating body, the washer pins can slide and penetrate through the avoidance hole in the conductive plate and the body positioning groove of the insulating body, and two ends of the spring sleeved outside the washer pins are respectively fastenedWasher boss is integrally formed on one side of washer and on the end face of the side wall of the body positioning groove, guide sliding grooves parallel to the axial direction of the screw are formed in the insulating body, and the washer boss can be slidably inserted into the guide sliding grooves _。

Description

Screw spring type wiring terminal with improved structure

Technical Field

The present utility model relates to connectors, and particularly to a screw-type connection terminal with improved structure.

Background

At present, the structure of the traditional screw spring-up type wiring terminal is as follows: the washer pin moves up and down in the body positioning groove, and the screw is inserted into the connection through hole of the washer; the automatic spring action of the screw is supported by the support member washer, by means of springs providing the spring force. In the process of washer sliding, washer head locating surface and body inside wall interwork location, body inside wall provides horizontal backstop force F2 for washer head, the screw head provides decurrent pressure G for washer, the spring provides elasticity restoring force F1 for washer, because washer head locating surface and body inside wall exist the clearance, and washer rotation arm of force L1 overlength, support piece washer has crooked tendency because the atress is unbalanced in the process of bouncing, consequently, can lead to the screw to bounce, influence wiring efficiency, serious people can directly lead to unable wiring.

Disclosure of Invention

In order to overcome the defects, the utility model provides the screw pop-up type wiring terminal with the improved structure, which can enable screws to be smoothly popped up.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides a screw bullet formula binding post of institutional advancement, includes insulator, washer, screw, current conducting plate and spring, current conducting plate fixed mounting is in insulator, is equipped with the screw hole on the current conducting plate and dodges the hole, is equipped with on the washer and just is connected the perforation with the screw hole, and the screw passes the connection perforation of washer and finally with the screw hole spiro union on the current conducting plate, and washer is located the fixed washer pin that is equipped with in connection perforation one side, insulator is equipped with the body constant head tank just to with washer pin, washer pin can be gliding dodge the hole on passing the current conducting plate and insert locate insulator's body constant head tank, and the spring housing is located the washer pin outside, and spring elastic expansion direction's both ends are tight respectively on washer and the terminal surface of body constant head tank lateral wall, washer one side still integrated into one piece has the washer boss, be equipped with in the insulator with the parallel direction spout of screw axial, washer boss can be gliding insert locate in the direction spout.

As a further improvement of the utility model, the cross section of the washer boss is of a T-shaped structure, and the cross section of the guide chute in the insulator body is of a T-shaped structure or an L-shaped structure matched with the washer boss.

As a further improvement of the utility model, the washer boss is formed by reversely extending a Hua Sizi washer pin positioning part.

As a further improvement of the utility model, a hollow cavity is formed in the insulating body, the conducting plate is fixedly arranged in the cavity, the washer can be accommodated in the cavity in a sliding manner, a body auxiliary positioning surface is formed on one side wall surface of the cavity, a washer auxiliary positioning surface is formed on one side of the washer, which is far away from the washer pin, and the washer auxiliary positioning surface can be tightly attached to the body auxiliary positioning surface in a sliding manner.

As a further improvement of the utility model, an opening is formed at one end of the cavity of the insulating body far away from the conducting plate, a cover plate capable of opening and closing is covered on the opening, a screw operation through hole is formed on the cover plate, the screw operation through hole is opposite to the screw head, and the screw head is stopped at one side surface of the cover plate facing the inner direction of the cavity.

As a further improvement of the utility model, the surface of one side of the cover plate, which faces the inner direction of the cavity, is also fixedly arranged on the limiting convex ring, and the head of the screw is stopped on the surface of the limiting convex ring.

As a further improvement of the utility model, a hollow structure for the screw and the washer to enter and exit is formed on one side wall of the cavity opening end of the insulating body, the cover plate is an L-shaped cantilever structure integrally formed on the insulating body, and the two side walls of the cover plate can just cover the cavity opening and the hollow structure surface on the cavity side wall.

As a further improvement of the utility model, the free end of the cover plate is provided with a limit stop arm which bends towards the inner direction of the cavity, and the limit stop arm can tightly prop against the washer auxiliary positioning surface of the washer.

As a further improvement of the utility model, the washer is a metal plate, a plurality of groove structures are formed on the surface of one side of the washer facing the screw head, a plurality of protrusions are correspondingly formed on the surface of one side of the washer facing the conductive plate, an anti-loosening tooth structure is formed on the step surface of the screw head facing the washer, and the anti-loosening tooth structure of the screw head interferes with the side wall of the groove structure on the surface of the washer.

As a further improvement of the utility model, the washer pins on the washer are prismatic structures, the washer pin ends form a reduced-size pointed structure.

The beneficial technical effects of the utility model are as follows: according to the utility model, the washer boss is arranged on the washer, and the guide chute is arranged in the insulating body, so that the washer boss on the washer slides in the guide chute in the sliding process of the washer, the washer is guided, meanwhile, the washer is always stressed uniformly in the sliding process, the risk of skewing of the washer in the up-and-down motion is avoided, the screw can be sprung smoothly, and the wiring efficiency is improved _。

Drawings

FIG. 1 is a diagram of a prior art washer stress analysis;

FIG. 2 is a perspective view of a prior art washer;

FIG. 3 is a schematic diagram of the prior art construction principle;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;

FIG. 5 is a diagram of a washer stress analysis of the present utility model;

FIG. 6 is a perspective view of the present utility model;

FIG. 7 is a front view of the structural principles of the present utility model;

FIG. 8 is a cross-sectional view taken along B-B in FIG. 7;

fig. 9 is a front view of the principle of the structure of the insulating body of the present utility model;

fig. 10 is a perspective view of a washer according to the present utility model.

Detailed Description

Examples: the utility model provides a screw bullet formula binding post of institutional advancement, includes insulator 1, washer 2, screw 3, current conducting plate 4 and spring 5, current conducting plate 4 fixed mounting is in insulator 1, be equipped with screw hole 41 and dodge hole 42 on the current conducting plate 4, be equipped with on the washer 2 with screw hole 41 just right connection perforation 21, screw 3 pass washer 2 connect perforation 21 and finally with the screw hole 41 spiro union on the current conducting plate 4, washer 2 is located connection perforation 21 one side and fixedly is equipped with a washer pin 22, insulator 1 is equipped with the body constant head tank 11 just right with washer pin 22, washer pin 22 slidable passes dodge hole 42 on current conducting plate 4 and inserts and locate in insulator 1's the body constant head tank 11, the washer pin 22 outside is located to the cover of spring 5, and washer 2 and body constant head tank 11 lateral wall's terminal surface are pressed respectively to the both ends of spring 5 elastic expansion direction, washer 2 one side still integrated into one piece has washer boss 23, be equipped with in insulator 1 with washer pin 3 axial parallel's guide chute 12, washer pin 23 can be slided and locate in the guide chute 12.

The structure ensures that the washer 2 forms a guide structure with the washer boss 23 and the guide chute 12 when sliding up and down in the insulating body 1, thereby avoiding the washer 2 from tilting during sliding and further ensuring the screw 3 to be ejected smoothly.

The cross section of the washer boss 23 is of a T-shaped structure, and the cross section of the guide chute 12 in the insulating body 1 is of a T-shaped structure or an L-shaped structure matched with the washer boss 23. The guide chute 12 adopts a T-shaped structure or an L-shaped structure, and limits the washer boss 23 of the T-shaped structure on the front, back, left and right sides, so that inclination generated when the washer 2 slides is fully avoided, and the washer is an equivalent replacement structure which is easily thought by a person skilled in the art according to the patent, and belongs to the protection scope of the patent.

The washer boss 23 is formed by reversely extending washer 2 from the positioning part of washer pin 22. The structure designs the washer boss 23 at the root of the washer pin 22, which plays a role in enhancing the washer pin 22, and simultaneously saves space and avoids the increase of the washer 2.

The insulating body 1 is internally provided with a hollow cavity, the conducting plate 4 is fixedly arranged in the cavity, the washer 2 can be slidingly accommodated in the cavity, a body auxiliary positioning surface 13 is formed on one side wall surface of the cavity, a washer auxiliary positioning surface 24 is formed on one side, far away from the washer pins 22, of the washer 2, and the washer auxiliary positioning surface 24 can be slidingly clung to the body auxiliary positioning surface 13.

When the washer 2 slides up and down, the pressure G provided by the screw 3 for the washer 2 and the elastic restoring force F1 provided by the spring 5 for the washer 2 form stress balance, the body auxiliary positioning surface 13 provides the stop force F2 facing the direction of the connecting perforation 21 for the washer auxiliary positioning surface 24, and the stop force F3 provided by the side wall of the guide chute 12 for the washer boss 23 transversely form stress balance, so that the rotation moment arm L2 of the washer 2 is reduced to 0, and the washer 2 is fully ensured not to incline in the up and down sliding process.

The cavity of insulator is kept away from 4 one end of current-conducting plate and is formed with the opening, the cover that can open and shut is gone up to the opening has apron 14, be formed with screw 3 operation perforation on the apron 14, screw 3 operation perforation just right with screw 3 head flower type, and screw 3 head backstop in apron 14 orientation one side surface in the cavity inside direction. The structure can protect the screw 3 and the washer 2, avoid exposing the screw 3, limit the screw 3 and avoid popup in the loosening process.

The surface of one side of the cover plate 14, which faces the inner direction of the cavity, is also fixedly provided with a limiting convex ring 15, and the head of the screw 3 is stopped on the surface of the limiting convex ring 15.

A hollow structure for the screws 3 and the washer 2 to enter and exit is formed on one side wall of the cavity opening end of the insulating body, the cover plate 14 is an L-shaped cantilever structure integrally formed on the insulating body 1, and two side walls of the cover plate 14 can just cover the cavity opening and the hollow structure surface on the cavity side wall. This structure enables the machining cover plate 14 to be opened, and the damaged screw 3 or washer 2 to be replaced and repaired.

The free end of the cover plate 14 is formed with a limit stop arm 16 bent towards the inner direction of the cavity, and the limit stop arm 16 can abut against a washer auxiliary positioning surface 24 of the washer 2.

The washer 2 is a metal plate, a plurality of groove structures are formed on the surface of one side of the head of the screw 3, a plurality of protrusions are correspondingly formed on the surface of one side of the head of the screw 3, which faces the washer 2, and a locking tooth structure is formed on the step surface of the head of the screw 3, which faces the washer 2, and the locking tooth structure of the head of the screw 3 interferes with the side wall of the groove structure on the surface of the washer 2. The structure ensures that the screw 3 is interfered and positioned with the washer 2 after being locked, thereby avoiding the screw from being loosened due to vibration.

The washer pins 22 on the washer 2 are prismatic structures, and the ends of the washer pins 22 form tip structures with reduced sizes.

Claims

1. The utility model provides a screw bullet formula binding post of institutional advancement, includes insulator (1), washer (2), screw (3), current conducting plate (4) and spring (5), current conducting plate fixed mounting is equipped with screw hole (41) and dodges hole (42) in insulator on the current conducting plate, be equipped with on the washer just to be connected perforation (21) with the screw hole, the screw pass the connection perforation of washer and finally with the screw hole spiro union on the current conducting plate, the washer is located and is connected perforation one side fixedly and be equipped with a washer pin (22), insulator is equipped with body constant head tank (11) just to the washer pin, washer pin can be gliding dodge the hole on passing the current conducting plate and insert and locate in insulator's the body constant head tank, and washer pin outside is located to the spring housing, and the both ends of spring elastic expansion direction tightly support respectively on washer and the terminal surface of body constant head tank lateral wall, its characterized in that: washer boss (23) is formed on one side of the washer integrally, a guide chute (12) parallel to the screw axis is formed in the insulator body, and the washer boss can be inserted into the guide chute in a sliding mode.

2. The structurally improved screw-up terminal of claim 1, wherein: the cross section of the washer boss is of a T-shaped structure, and the cross section of the guide chute in the insulating body is of a T-shaped structure or an L-shaped structure matched with the washer boss.

3. The structurally improved screw-up terminal according to claim 2, wherein: the washer boss is formed by reversely extending a Hua Sizi washer pin positioning part.

4. The structurally improved screw-up terminal of claim 1, wherein: the washer is characterized in that a hollow cavity is formed in the insulating body, the conducting plate is fixedly arranged in the cavity, the washer can be slidingly accommodated in the cavity, a body auxiliary positioning surface (13) is formed on one side wall surface of the cavity, a washer auxiliary positioning surface (24) is formed on one side, far away from the washer pins, of the washer, and the washer auxiliary positioning surface can be slidingly clung to the body auxiliary positioning surface.

5. The structurally improved screw-up terminal of claim 4, wherein: the cavity of insulator is kept away from current-conducting plate one end and is formed with the opening, can open and shut cover on the opening has apron (14), be formed with screw operation perforation on the apron, screw operation perforation just right with the screw head flower type, and the screw head backstop in apron is towards cavity inside direction one side surface.

6. The structurally improved screw-up terminal of claim 5, wherein: the cover plate is further fixedly arranged on one side surface of the cavity towards the inner direction, and the limiting convex ring (15) is arranged on the surface of the limiting convex ring.

7. The structurally improved screw-up terminal of claim 5, wherein: a hollow structure for screws and washer to enter and exit is formed on one side wall of the cavity opening end of the insulating body, the cover plate is of an L-shaped cantilever structure integrally formed on the insulating body, and two side walls of the cover plate can just cover the cavity opening and the hollow structure surface on the cavity side wall.

8. The structurally improved screw-up terminal of claim 7, wherein: the free end of the cover plate is provided with a limit stop arm (16) which bends towards the inner direction of the cavity, and the limit stop arm can tightly prop against the washer auxiliary positioning surface of the washer.

9. The structurally improved screw-up terminal of claim 8, wherein: the washer is a metal plate, a plurality of groove structures are formed on the surface of one side of the washer facing the head of the screw, a plurality of protrusions are correspondingly formed on the surface of one side of the washer facing the conductive plate, an anti-loosening tooth structure is formed on the step surface of the head of the screw facing the washer, and the anti-loosening tooth structure of the head of the screw is interfered with the side wall of the groove structure on the surface of the washer.

10. The structurally improved screw-up terminal of claim 1, wherein: the washer pins on the washer are of prismatic structures, and tip structures with reduced sizes are formed at the ends of the washer pins.