Search

CN-224203974-U - High-precision travel switch

CN224203974UCN 224203974 UCN224203974 UCN 224203974UCN-224203974-U

Abstract

The utility model discloses a high-precision travel switch, which structurally comprises a head mechanism and a switch structure, wherein the head mechanism is fixedly arranged at the rear end of the switch structure, the head mechanism is provided with a swing rod, the tail end of the swing rod is provided with a roller, the front end of the head mechanism is provided with a plunger, the plunger is in transmission connection with the swing rod, the switch structure comprises a shell, a supporting seat is arranged in the shell, a switch core module is arranged on the end face of the supporting seat, two fixing screw holes are formed in the rear end of the top of the switch core module, and a conductive structure is arranged in the two fixing screw holes.

Inventors

  • YE FAN
  • ZHANG SHUIKUN

Assignees

  • 三实电器(漳州)有限公司

Dates

Publication Date
20260505
Application Date
20250527

Claims (6)

  1. 1. The high-precision travel switch structurally comprises a head mechanism (1) and a switch structure (2), wherein the head mechanism (1) is fixedly arranged at the rear end of the switch structure (2), and is characterized in that the head mechanism (1) is provided with a swing rod (11), the tail end of the swing rod (11) is provided with a roller (12), the front end of the head mechanism (1) is provided with a plunger (13), and the plunger (13) is in transmission connection with the swing rod (11); Switch structure (2) are including shell (21), the inside of shell (21) is equipped with supporting seat (22), switch core module (23) are installed to the terminal surface of supporting seat (22), the top rear end of switch core module (23) is equipped with two fixed screw (232), two install electrically conductive structure (25) in fixed screw (232), the right intermediate position in rear end of switch core module (23) is equipped with switch core trigger lever (231), top through top cap (24) fixed mounting at the top of shell (21).
  2. 2. A high precision travel switch according to claim 1, wherein the conductive structure (25) comprises a right rotating plate (251) and a left rotating plate (252) and a screw (253), the screw (253) is installed in a fixed screw hole (232) on the right side of the switch core module (23) through the right rotating plate (251) and a spring pad (254) and a flat pad (255), the right rotating plate (251) is rotatably connected with the screw (253), the screw (253) is installed in a fixed screw hole (232) on the left side of the switch core module (23) through the left rotating plate (252) and the spring pad (254) and the flat pad (255), and the left rotating plate (252) is rotatably connected with the screw hole (232).
  3. 3. The high-precision travel switch of claim 1, wherein the side end of the plunger (13) is provided with an O-shaped ring (14) and a sleeve ring (15), and the end surface of the sleeve ring (15) is fixedly connected with the sealing sleeve (16).
  4. 4. A high-precision travel switch according to claim 3, wherein the sealing sleeve (16) is made of rubber and has good insulation.
  5. 5. A high precision travel switch as set forth in claim 2, wherein said plunger (13) is aligned with an end face of a right rotary plate (251), said right rotary plate (251) is movably fitted with an end face of a left rotary plate (252), and said left rotary plate (252) is aligned with a horizontal position of a switch core trigger lever (231).
  6. 6. The high-precision travel switch of claim 2, wherein the right rotating plate (251) and the left rotating plate (252) are made of copper materials and have good conductivity.

Description

High-precision travel switch Technical Field The utility model relates to the technical field of switches, in particular to a high-precision travel switch. Background The travel switch is also called a limit switch, which is a common small-current master control electric appliance, and uses the collision of the moving parts of the production machinery to make the contacts act to realize the connection or disconnection of a control circuit, thus achieving a certain control purpose. Disclosure of utility model Aiming at the problems existing in the prior art, the utility model provides a high-precision travel switch, wherein an auxiliary trigger mechanism of a lever amplification principle is added between a head mechanism and a switch core module to perform the function of placing the switch on the head travel, so that the trigger precision and the repetition precision of the switch are improved, and the utility model is realized by the following technical scheme: As a further optimization of the technical scheme, the structure comprises a head mechanism and a switch structure, wherein the head mechanism is fixedly arranged at the rear end of the switch structure and is provided with a swinging rod, the tail end of the swinging rod is provided with a roller, the front end of the head mechanism is provided with a plunger, and the plunger is in transmission connection with the swinging rod; The switch structure comprises a shell, a supporting seat is arranged in the shell, a switch core module is arranged on the end face of the supporting seat, two fixing screw holes are formed in the rear end of the top of the switch core module, a conductive structure is arranged in each fixing screw hole, a switch core trigger rod is arranged at the right middle position of the rear end of the switch core module, and the top of the shell is fixedly arranged through a top cover. As a further optimization of this technical scheme, the electrically conductive structure includes right rotation board and left rotation board and also screw, the screw runs through in right rotation board and spring pad and still the flat pad is installed in the fixed screw on the right side of the quick-witted Guan Xinbu module, and right rotation board and screw rotate to be connected, the screw runs through in left rotation board and spring pad and still the flat pad is installed in the fixed screw on the left side of the switch core module, and left rotation board and screw rotate to be connected. As a further optimization of the technical scheme, the side end of the plunger is provided with an O-shaped ring and a lantern ring, and the end face of the lantern ring is fixedly connected with the sealing sleeve. As a further optimization of the technical scheme, the sealing sleeve is made of rubber material and has good insulativity. As a further optimization of this technical scheme, the plunger aligns with the terminal surface of right pivoted plate, right pivoted plate and the terminal surface clearance fit of left pivoted plate, left pivoted plate aligns with the horizontal position of switch core trigger lever. As the further optimization of this technical scheme, right rotation board and left rotation board are copper material, have better conductivity. Advantageous effects Compared with the prior art, the high-precision travel switch has the following advantages: According to the utility model, the stroke amplification is realized through the design that the screw is used as a fulcrum, when the right rotating plate and the left rotating plate are subjected to the small displacement action of the plunger, the screw is used as the fulcrum to fix the rotation center, so that the left rotating plate props against the switch core trigger rod to generate amplified displacement, the switch is switched on and off, the stroke amplification action is realized, and the action precision of the switch is improved. Drawings Other features, objects and advantages of the present utility model will become more apparent upon reading of the detailed description of non-limiting embodiments, given with reference to the accompanying drawings in which: fig. 1 is a schematic diagram of a front view of a high-precision travel switch according to the present utility model. Fig. 2 is a schematic diagram of a head structure of a high-precision travel switch according to the present utility model. Fig. 3 is a schematic diagram of the explosion structure of the switch structure of the high-precision travel switch. Fig. 4 is a schematic diagram of a front view of a switch core module of a high-precision travel switch according to the present utility model. Fig. 5 is a schematic top sectional view showing a reset state of a conductive structure of a high-precision travel switch according to the present utility model. Fig. 6 is a schematic top sectional view of a conductive structure of a high-precision travel switch according to the present utility model. Fig. 7 is a sche