CN215644163U

CN215644163U - Micro-distance reciprocating travel switch

Info

Publication number: CN215644163U
Application number: CN202121782373.0U
Authority: CN
Inventors: 刘洪亮
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-08-02
Filing date: 2021-08-02
Publication date: 2022-01-25
Anticipated expiration: 2031-08-02

Abstract

The utility model relates to a micro-distance reciprocating travel switch, which comprises: the utility model relates to a shell, a reciprocating rod, a cover body, a first fixed electric sheet, a first movable electric sheet, a sleeve, a striking column and an insulating cap.

Description

Micro-distance reciprocating travel switch

Technical Field

The utility model relates to the technical field of travel switch devices, in particular to a micro-distance reciprocating travel switch.

Background

A travel switch, also called a limit switch, is one of position switches, and is a common current master control electrical appliance. The contact of the mechanical moving part is operated by the motion of the mechanical moving part to realize the connection or disconnection of the control circuit, thereby achieving a certain control purpose.

Generally, such switches are used to limit the position or stroke of the movement of the moving machine, such as automatic stopping, reversing, shifting or automatic reciprocating movement of the moving machine according to a certain position or stroke, wherein the stroke switches are commonly used in lifting devices.

However, the existing travel switch has a complex structure and poor sensitivity in the using process, is not convenient for realizing accurate limit and control of the travel of a moving part on the hoisting equipment, reduces the safety of the hoisting equipment in the working process,

therefore, how to provide a travel switch with simple structure and high sensitivity is a technical problem that needs to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model provides a micro-distance reciprocating travel switch, which solves the technical problems of complex structure and low sensitivity of the existing travel switch.

The technical scheme for solving the technical problems is as follows: a macro reciprocating travel switch, comprising: the device comprises a shell, a reciprocating rod, a cover body, a first fixed electric piece, a movable electric piece, a sleeve, an impact column and an insulating cap, wherein the shell is cylindrical, one end of the shell is a through hole, and the side wall of the shell is provided with a sleeve fixing hole; one end of the reciprocating rod passes through the through-insertion hole and can reciprocate along the axial direction of the shell; the cover body is fixed on the outer side wall of the shell corresponding to the position of the sleeve fixing hole, and a binding post A and a binding post C are fixed on the outer end face of the cover body; the first fixed electric piece is fixed on the inner wall of the cover body and is electrically connected with the wiring terminal A; the movable electric piece is arranged in the cover body in a full-length mode and is electrically connected with the wiring terminal C, one end of the movable electric piece is fixed on the inner wall of the other side of the cover body, and the other end of the movable electric piece is lapped on the first fixed electric piece;

the sleeve corresponds to the lower part of the movable electric sheet and is fixed on the sleeve fixing hole in a way of being vertical to the shell; the impact column is connected in the sleeve in a sliding way; the insulating cap is connected to one end of the impact column, and the bottom edge of the insulating cap is abutted to the top of the sleeve; the impact column can carry the insulating cap to move upwards to impact the movable electric sheet to separate from the first fixed electric sheet, and the other end of the impact column extends out of the sleeve; one end of the reciprocating rod is provided with a bulge outwards in the radial direction, and the bulge is abutted against the other end of the impact column to drive the impact column to reciprocate.

The utility model has the beneficial effects that: because the fixed electric sheet is electrically connected with the binding post A, the movable electric sheet is electrically connected with the binding post C, the other end of the movable electric sheet is lapped on the fixed electric sheet I, a section of current path can be formed between the binding post A and the binding post C, when the binding post C is externally connected with a power supply, and the binding post A is externally connected with an alarm, a buzzer or other display devices, the reciprocating rod is pulled in a reciprocating mode, the bulge on the reciprocating rod drives the impact column to move upwards, the impact column drives the insulating sleeve to impact the movable electric sheet to be separated from the fixed electric sheet I, the current path between the binding post C and the binding post A is broken, and therefore a control circuit is achieved.

Furthermore, the electric wire drawing device can also comprise a wiring terminal B and a second fixed electric sheet, wherein the second fixed electric sheet is fixed at the top end in the cover body; the wiring terminal B is fixed at the top of the cover body and is electrically connected with the second fixed electric sheet; the impact column carries the insulating cap to impact the movable electric piece so as to realize the electrical connection of the movable electric piece and the fixed electric piece.

The adoption of the further beneficial effects is as follows: because the striking post carries the two electric connection of insulating cap striking activity electricity piece can realize activity electricity piece and fixed electricity piece, two electric connection of terminal B and fixed electricity piece, under the natural state, form one section open circuit between terminal B and the terminal C, when the striking post rebound carries the movable electricity piece of insulating cap striking, two and the activity electricity piece intercommunication of fixed electricity piece, form the electric current route between terminal B and the terminal C to reach control circuit's purpose.

The device further comprises a roller and two connecting pieces, wherein the top ends of the two connecting pieces are respectively fixedly connected with the lower side wall of the impact column; the lower side wall of the sleeve is provided with two strip-shaped through holes which are axially arranged along the sleeve and penetrate through the end surface of the bottom of the sleeve, and the two strip-shaped through holes are oppositely arranged; two ends of the roller respectively extend out of the two elongated through holes and are fixed with the bottom ends of the two connecting sheets; the roller abuts against the projection.

The adoption of the further beneficial effects is as follows: the roller is used for replacing the collision between the bottom of the collision column and the protrusion, collision scratches generated by collision can be buffered, and the service life of the travel switch is prolonged.

Furthermore, the reciprocating rod can further comprise a fixed rod, and one end of the fixed rod is fixedly connected with the other end of the shell and is arranged in parallel with the reciprocating rod.

Drawings

FIG. 1 is a schematic diagram of an internal structure of a micro-distance reciprocating travel switch according to the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1A;

fig. 3 is a side view of a sleeve and an impact post in a macro reciprocating stroke switch of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. the device comprises a shell, 2, a reciprocating rod, 21, a protrusion, 3, a cover body, 4, a first fixed electric piece, 5, a movable electric piece, 6, a sleeve, 7, an impact column, 8, an insulating cap, 9, wiring posts A, 10, wiring posts C, 11, wiring posts B, 12, a second fixed electric piece, 13, a roller, 14, a connecting piece, 15 and a strip-shaped through hole; 16. And (5) fixing the rod.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the utility model.

As shown in fig. 1, a macro reciprocating type stroke switch includes: the device comprises a shell 1, a reciprocating rod 2, a cover body 3, a first fixed electric sheet 4, a movable electric sheet 5, a sleeve 6, an impact column 7 and an insulating cap 8, wherein the shell 1 is cylindrical, one end of the shell is a through hole, and the side wall of the shell is provided with a sleeve fixing hole; one end of the reciprocating rod 2 passes through the through-insertion hole and can reciprocate along the axial direction of the shell 1; the cover body 3 is fixed on the outer side wall of the shell 1 corresponding to the position of the sleeve fixing hole, and a binding post A9 and a binding post C10 are fixed on the outer end face of the cover body 3; the first fixed electric piece 4 is fixed on the inner wall of the cover body 3 and is electrically connected with the wiring terminal A9; the movable electric piece 5 is arranged in the cover body 3 in a full length mode and is electrically connected with the wiring terminal C10, one end of the movable electric piece 5 is fixed on the inner wall of the other side of the cover body 3, and the other end of the movable electric piece 5 is lapped on the first fixed electric piece 4;

the sleeve 6 corresponds to the lower part of the movable electric sheet 5 and is fixed on the sleeve fixing hole vertical to the shell 1; the impact post 7 is connected in the sleeve 6 in a sliding way; the insulating cap 8 is connected to one end of the impact column 7, and the bottom edge of the insulating cap is abutted against the top of the sleeve 6; the impact column 7 can move upwards to impact the movable electric sheet 5 to be separated from the fixed electric sheet one 4 by carrying the insulating cap 8, and the other end of the impact column 7 extends out of the sleeve 6; one end of the reciprocating rod 2 is provided with a projection 21 which is outwards protruded along the radial direction, and the projection 21 is abutted with the other end of the impact column 7 so as to drive the impact column 7 to reciprocate.

In some embodiments, the device further comprises a terminal B11 and a second fixed electric piece 12, wherein the second fixed electric piece 12 is fixed at the top end inside the cover body 3; the terminal B11 is fixed on the top of the cover body 3 and is electrically connected with the second fixed electric piece 12; the impact column 7 carries the insulating cap 8 to impact the movable electric piece 5, so that the electric connection between the movable electric piece 5 and the second fixed electric piece 12 can be realized.

In some specific embodiments, the device can further comprise a roller 13 and two connecting pieces 14, wherein the top ends of the two connecting pieces 14 are fixedly connected with the lower side wall of the impact column 7 respectively; the lower side wall of the sleeve 6 is provided with two strip-shaped through holes 15 which are arranged along the axial direction and penetrate through the bottom end face of the sleeve, and the two strip-shaped through holes 15 are oppositely arranged; two ends of the roller 13 respectively extend out of the two strip-shaped through holes 15 and are fixed with the bottom ends of the two connecting sheets 14; the roller 13 abuts against the projection 21.

In some embodiments, a fixing rod 16 may be further included, and one end of the fixing rod 16 is fixedly connected to the other end of the housing 1 and arranged in parallel with the reciprocating rod 2.

The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A macro reciprocating travel switch, comprising: the device comprises a shell (1), a reciprocating rod (2), a cover body (3), a first fixed electric sheet (4), a movable electric sheet (5), a sleeve (6), an impact column (7) and an insulating cap (8), wherein the shell (1) is cylindrical, one end of the shell is a through hole, and the side wall of the shell is provided with a sleeve fixing hole; one end of the reciprocating rod (2) penetrates through the through hole and can reciprocate along the axial direction of the shell (1); the cover body (3) is fixed on the outer side wall of the shell (1) corresponding to the position of the sleeve fixing hole, and a binding post A (9) and a binding post C (10) are fixed on the outer end face of the cover body (3); the first fixed electric piece (4) is fixed on the inner wall of the cover body (3) and is electrically connected with the wiring terminal A (9); the movable electric piece (5) is arranged in the cover body (3) in a whole length and is electrically connected with the wiring terminal C (10), one end of the movable electric piece (5) is fixed on the inner wall of the other side of the cover body (3), and the other end of the movable electric piece is lapped on the first fixed electric piece (4);

the sleeve (6) corresponds to the lower part of the movable electric sheet (5) and is vertical to the shell (1) and fixed on the sleeve fixing hole; the impact column (7) is connected in the sleeve (6) in a sliding manner; the insulating cap (8) is connected to one end of the impact column (7) and the bottom edge of the insulating cap is abutted to the top of the sleeve (6); the impact column (7) can move upwards to impact the movable electric piece (5) to be separated from the fixed electric piece (4) by carrying the insulating cap (8), and the other end of the impact column (7) extends out of the sleeve (6); one end of the reciprocating rod (2) is provided with a protrusion (21) along the radial outward protrusion of the reciprocating rod, and the protrusion (21) is abutted against the other end of the impact column (7) to drive the impact column (7) to reciprocate.

2. The macro reciprocating type travel switch according to claim 1, characterized by further comprising a terminal B (11) and a second fixed electric piece (12), wherein the second fixed electric piece (12) is fixed at the top end in the cover body (3); the wiring terminal B (11) is fixed at the top of the cover body (3) and is electrically connected with the second fixed electric piece (12); the impact column (7) carries the insulation cap (8) to impact the movable electric sheet (5) so that the movable electric sheet (5) is electrically connected with the second fixed electric sheet (12).

3. The macro reciprocating stroke switch according to claim 1, further comprising a roller (13) and two connecting pieces (14), wherein the top ends of the two connecting pieces (14) are fixedly connected with the lower side wall of the impact column (7), respectively; the lower side wall of the sleeve (6) is provided with two strip-shaped through holes (15) which are axially arranged along the sleeve and penetrate through the bottom end face of the sleeve, and the two strip-shaped through holes (15) are oppositely arranged; two ends of the roller (13) respectively extend out of the two strip-shaped through holes (15) and are fixed with the bottom ends of the two connecting sheets (14); the roller (13) abuts against the projection (21).

4. A macro reciprocating stroke switch according to claim 1, further comprising a fixing rod (16), wherein one end of said fixing rod (16) is fixedly connected with the other end of said housing (1) and arranged in parallel with said reciprocating rod (2).