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CN-224203993-U - Pressing mechanism capable of realizing double breaking

CN224203993UCN 224203993 UCN224203993 UCN 224203993UCN-224203993-U

Abstract

The utility model discloses a pressing mechanism capable of realizing double breaking, which comprises a base, wherein an upper wiring lug and a lower wiring lug are respectively arranged on the base, one ends of the upper wiring lug and the lower wiring lug are respectively provided with a fixed contact, the middle part of the base is provided with a sliding groove, the inside of the sliding groove is slidably provided with a push rod, a containing groove is penetrated through the push rod, an upper movable contact piece and a lower movable contact piece are sequentially slidably arranged in the containing groove from top to bottom, soft connection is connected between the upper movable contact piece and the lower movable contact piece, one sides of the upper movable contact piece adjacent to the lower movable contact piece are respectively provided with an insulating block, a pressure spring is arranged between the two insulating blocks, and a reset spring is arranged between the bottom of the push rod and the sliding groove.

Inventors

  • CHEN ZHIQIANG
  • LIANG RUIWEN
  • ZHOU HUIHUI
  • Miao Zhiyun

Assignees

  • 温州金宏电器有限公司

Dates

Publication Date
20260505
Application Date
20250424

Claims (8)

  1. 1. The utility model provides a pressing mechanism that can doubly break, includes base (1), install on base (1) respectively lug (3) and lower lug (4), the one end of going up lug (3) and lower lug (4) all is equipped with stationary contact (11), wherein spout (22) have been seted up at the middle part of base (1), the inside slidable mounting of spout (22) has catch bar (2), through having seted up accommodation groove (20) on catch bar (2), the inside from the top down of accommodation groove (20) slides in proper order and is provided with movable contact (5) and movable contact (6) down, be connected with soft connection (7) between movable contact (5) and the movable contact (6) down, insulating block (10) are all installed to one side that movable contact (5) and movable contact (6) down are adjacent, two be equipped with pressure spring (9) between insulating block (10), be equipped with reset spring (8) between the bottom of catch bar (2) and spout (22).
  2. 2. A pressing mechanism capable of double breaking according to claim 1, characterized in that the spring coefficient of the return spring (8) is greater than the spring coefficient of the compression spring (9).
  3. 3. The pressing mechanism capable of being divided doubly according to claim 1, wherein the two insulating blocks (10) are provided with positioning cylinders (16), and two ends of the pressure spring (9) are respectively positioned in the two positioning cylinders (16).
  4. 4. The pressing mechanism capable of being divided doubly according to claim 1, wherein through holes (13) are formed in the upper movable contact piece (5) and the lower movable contact piece (6), and buckles (18) matched with the through holes (13) are arranged on one side of the insulating block (10).
  5. 5. The pressing mechanism capable of being divided doubly according to claim 1, wherein the upper movable contact piece (5) and the lower movable contact piece (6) are provided with limiting grooves (14), and the insulating block (10) is provided with limiting blocks (17) matched with the limiting grooves (14).
  6. 6. The pressing mechanism capable of being divided doubly according to claim 1, wherein four protrusions (15) are arranged on the upper movable contact piece (5) and the lower movable contact piece (6), the four protrusions (15) are distributed in a rectangular shape, and the four protrusions (15) are tightly attached to the pushing rod (2).
  7. 7. The pressing mechanism capable of being double-divided according to claim 1, wherein a fixed column (23) is arranged at the bottom of the inner wall of the sliding groove (22), a groove (24) is formed in the bottom of the pushing rod (2), one end of the return spring (8) is arranged in the groove (24), and the other end of the return spring (8) is sleeved on the outer side of the fixed column (23).
  8. 8. The pressing mechanism capable of being divided doubly according to claim 1, wherein the top and the bottom of the accommodating groove (20) are respectively provided with an avoidance groove (19), two stop blocks (21) are respectively arranged in the base (1), and movable contacts (12) are respectively arranged on the upper movable contact piece (5) and the lower movable contact piece (6).

Description

Pressing mechanism capable of realizing double breaking Technical Field The utility model relates to the technical field of push-button switches, in particular to a pressing mechanism capable of realizing double breaking. Background The button switch is an electronic element for controlling the on-off of a circuit through manual pressing operation, and is widely applied to the fields of industrial control, household appliances, automation equipment, communication systems and the like. When the pressing mechanism of the existing button switch presses, different on-off states can not be realized due to different pressing depths. Disclosure of utility model The utility model aims to provide a pressing mechanism capable of double breaking so as to solve the problems in the prior art. In order to achieve the aim, the pressing mechanism capable of realizing double breaking comprises a base, wherein an upper wiring lug and a lower wiring lug are respectively arranged on the base, one ends of the upper wiring lug and the lower wiring lug are respectively provided with a fixed contact, the middle part of the base is provided with a sliding groove, a push rod is slidably arranged in the sliding groove, a containing groove is formed in the push rod in a penetrating mode, an upper movable contact piece and a lower movable contact piece are sequentially slidably arranged in the containing groove from top to bottom, soft connection is arranged between the upper movable contact piece and the lower movable contact piece, insulating blocks are arranged on one sides, adjacent to the upper movable contact piece and the lower movable contact piece, pressure springs are arranged between the two insulating blocks, and a reset spring is arranged between the bottom of the push rod and the sliding groove. As a preferred embodiment of the present utility model, the spring constant of the return spring is greater than the spring constant of the compression spring. As a preferable scheme of the utility model, the two insulating blocks are provided with the positioning cylinders, and the two ends of the pressure spring are respectively positioned in the two positioning cylinders. As a preferable scheme of the utility model, through holes are formed in the upper movable contact piece and the lower movable contact piece, and a buckle matched with the through holes is arranged on one side of the insulating block. As a preferable scheme of the utility model, the upper movable contact piece and the lower movable contact piece are provided with limiting grooves, and the insulating block is provided with limiting blocks which are matched with the limiting grooves. As a preferable scheme of the utility model, four bulges are arranged on the upper movable contact piece and the lower movable contact piece, the four bulges are distributed in a rectangular shape, and the four bulges are tightly attached to the push rod. As a preferable scheme of the utility model, the bottom of the inner wall of the chute is provided with a fixed column, the bottom of the pushing rod is provided with a groove, one end of the return spring is arranged in the groove, and the other end of the return spring is sleeved outside the fixed column. As a preferable scheme of the utility model, the top and the bottom of the accommodating groove are respectively provided with an avoidance groove, two stop blocks are respectively arranged in the base, and movable contacts are respectively arranged on the upper movable contact and the lower movable contact. Compared with the prior art, the utility model has the beneficial effects that different on-off states can be realized due to different pressing depths through the arranged push rod, the pressure spring, the reset spring, the upper movable contact piece and the lower movable contact piece, and the upper movable contact piece and the lower movable contact piece are limited through the arranged protrusions, so that the upper movable contact piece and the lower movable contact piece are more stable in movement, and the reliability of a pressing mechanism is ensured. Drawings FIG. 1 is a schematic perspective view of the present utility model; FIG. 2 is a cross-sectional view of the present utility model in an initial state; FIG. 3 is a cross-sectional view of the present utility model after pressing the push rod; FIG. 4 is a cross-sectional view of the present utility model after the push rod is depressed; FIG. 5 is a schematic diagram of the structure of the upper movable contact, the lower movable contact and the flexible connection according to the present utility model; FIG. 6 is a schematic view of the structure of an insulating block according to the present utility model; FIG. 7 is a schematic view of the structure of the push rod of the present utility model; fig. 8 is a schematic structural view of the base of the present utility model. In the figure, 1, a base, 2, a push rod, 3, an upper wiring lug, 4, a lower wiring