CN210668864U

CN210668864U - PLC protection device

Info

Publication number: CN210668864U
Application number: CN201922000723.2U
Authority: CN
Inventors: 姚昕
Original assignee: Guizhou Light Industry Technical College
Current assignee: Guizhou Light Industry Technical College
Priority date: 2019-11-19
Filing date: 2019-11-19
Publication date: 2020-06-02
Anticipated expiration: 2029-11-19

Abstract

The utility model discloses a PLC protection device, including the PLC body, be equipped with signal output part on the PLC body, the interpolation of signal output part is equipped with signal reception's plug, the plug connection has signal transmission line, the right side of PLC body is equipped with the fender bracket, be equipped with protection mechanism in the fender bracket. The utility model discloses a fender bracket can increase signal output part and plug connection's on the PLC body stability, avoid grafting not hard up the condition to appear, the stability of PLC controller signal output has been promoted greatly, simultaneously the plug is accomplished with signal output part's grafting after, protection mechanism carries out the centre gripping to the signal transmission line of plug and fixes, when meetting external force and dragging, protection mechanism can offset the external force of dragging to the traction force of signal transmission line, and then reduce the external force of dragging that the plug received, the steady operation of the mechanical equipment of its control has effectively been guaranteed.

Description

PLC protection device

Technical Field

The utility model relates to a PLC technical field especially relates to a PLC protection device.

Background

The PLC belongs to a programmable logic controller, and thus controls various types of production processes or mechanical equipment.

Because the output of PLC is received with the outside and is accomplished the connection through pegging graft, the grafting of PLC signal output terminal interface and signal plug is more frequent, and the signal line is dragged by external force easily, leads to the output to peg graft not hard up easily, appears the condition of contact failure even damage easily, and the plug is difficult for breaking easily because of repetitious use with the signal line junction, is difficult to guarantee the stability of PLC controller signal output, consequently is difficult to guarantee the steady operation of the machine equipment of its control.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem in the background art, and the PLC protection device who provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a PLC protection device, includes the PLC body, be equipped with signal output part on the PLC body, the plug that signal output part interpolation was equipped with signal reception, the plug connection has signal transmission line, the right side of PLC body is equipped with the fender bracket, be equipped with protection mechanism in the fender bracket.

Preferably, the protection mechanism comprises a screw rod inserted into the right side wall of the protection frame in a penetrating manner, a ball nut matched with the screw rod is sleeved on the outer wall of the screw rod, and a circular truncated cone is fixedly sleeved on the outer wall of the ball nut.

Preferably, the lateral wall of round platform all rotates and is connected with dwang one, two the relative lateral wall of dwang one all rotates and is connected with dwang two, two the one end that dwang one was kept away from to dwang two all rotates and is connected with the slider, sliding connection has the diaphragm, two between the lateral wall about the fender bracket slider sliding connection is on the right side wall of diaphragm, the middle part of diaphragm be equipped with plug assorted opening.

Preferably, two all be equipped with flexible groove in the slider, two all insert in the flexible inslot and be equipped with the telescopic link, two the one end that the telescopic link is relative all is fixed with the arc, two equal fixedly connected with expanding spring in the flexible inslot, two the equal fixedly connected with baffle of the other end of expanding spring, two the one end that the telescopic link is located flexible inslot all with baffle fixed connection.

Preferably, two limiting rods which are symmetrically arranged are fixedly mounted on the left side wall of the transverse plate.

Preferably, PLC body right side wall is equipped with two fixed slots, two the equal fixed mounting of left side inner wall of fixed slot has magnet piece one, two in two ports of fender bracket all inserted and establish into the fixed slot, two the equal fixed mounting of port has magnet piece two.

Compared with the prior art, the PLC protection device has the advantages that:

1. the stability of the connection between the signal output end on the PLC body and the plug can be improved through the protective frame, the condition of loose insertion is avoided, and the stability of signal output of the PLC is greatly improved;

2. after the plug is inserted into the signal output end, the protection mechanism clamps and fixes the signal transmission line of the plug, when the plug is pulled by external force, the traction force of the protection mechanism on the signal transmission line can offset the pulled external force, so that the pulled external force applied to the plug is reduced, and the stable operation of machine equipment controlled by the plug is effectively ensured;

to sum up, the utility model discloses a fender bracket can increase signal output part and plug connection's on the PLC body stability, avoid grafting not hard up the condition to appear, promoted PLC controller signal output's stability greatly, the plug is accomplished with signal output part's grafting simultaneously after, protection mechanism carries out the centre gripping to the signal transmission line of plug and fixes, when meetting external force and dragging, protection mechanism can offset the external force of dragging to signal transmission line's traction force, and then reduce the external force of dragging that the plug received, the steady operation of the mechanical equipment of its control has effectively been guaranteed.

Drawings

Fig. 1 is a front view of a PLC protection device according to the present invention;

fig. 2 is a side view of the utility model provides a PLC protection device diaphragm.

In the figure: the device comprises a PLC body 1, a protective frame 2, a transverse plate 3, a circular truncated cone 4, a screw rod 5, a first rotating rod 6, a second rotating rod 7, a sliding block 8, a limiting rod 9, a plug 10, a first magnet block 11, a second magnet block 12, a fixed groove 13, a telescopic rod 14, an arc plate 15, a partition plate 16 and a telescopic spring 17.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-2, a PLC protection device, including PLC body 1, be equipped with signal output part on the PLC body 1, the interpolation of signal output part is equipped with signal reception's plug 10, plug 10 is connected with signal transmission line, PLC body 1's right side is equipped with fender bracket 2, PLC body 1 right side wall is equipped with two fixed slots 13, the equal fixed mounting of the left side inner wall of two fixed slots 13 has magnet piece one 11, two ports of fender bracket 2 are all inserted and are established in fixed slot 13, the equal fixed mounting of two ports has magnet piece two 12, pass plug 10 the opening, fender bracket 2 attracts mutually through magnet piece one 11 and magnet piece two 12 and fixes with PLC body 1, can increase the stability that signal output part and plug 10 are connected on the PLC body 1, avoid the not hard up condition of grafting to appear, the stability of PLC controller signal output has been promoted greatly.

A protection mechanism is arranged in the protection frame 2, the protection mechanism comprises a screw rod 5 which is inserted in the right side wall of the protection frame 2 in a penetrating way, a ball nut matched with the screw rod 5 is sleeved on the outer wall of the screw rod 5, a round table 4 is fixedly sleeved on the outer wall of the ball nut, a first rotating rod 6 is rotatably connected with the side wall of the round table 4, a second rotating rod 7 is rotatably connected with the opposite side wall of the first rotating rod 6, a sliding block 8 is rotatably connected with one end of the second rotating rod 7 far away from the first rotating rod 6, a transverse plate 3 is slidably connected between the upper side wall and the lower side wall of the protection frame 2, the two sliding blocks 8 are slidably connected on the right side wall of the transverse plate 3, a through hole matched with the plug 10 is arranged in the middle part of the transverse plate 3, telescopic grooves are respectively arranged in the two sliding blocks 8, telescopic rods 14 are respectively inserted, the other ends of the two extension springs 17 are fixedly connected with a partition plate 16, one ends of the two extension rods 14 positioned in the extension grooves are fixedly connected with the partition plate 16, the left side wall of the transverse plate 3 is fixedly provided with two symmetrically arranged limiting rods 9, the limiting rods 9 can prevent the lead screw 5 from being screwed too much to extrude the plug 10 to be damaged, after the plug 10 is inserted into the signal output end, the screw rod 5 is rotated, the screw rod 5 is matched with the ball nut to realize the movement of the circular truncated cone 4, the rotating rod I6 and the rotating rod II 7 are driven to approach along with the movement of the circular truncated cone 4, thereby pushing the two slide blocks 8 to drive the arc-shaped plates 15 to clamp and fix the signal transmission line, when the signal transmission line is dragged by external force, the traction force of the protection mechanism on the signal transmission line can offset the dragged external force, and further reduces the pulling external force on the plug 10, and effectively ensures the stable operation of the machine equipment controlled by the plug.

Further, unless otherwise specifically stated or limited, the above-described fixed connection is to be understood in a broad sense, and may be, for example, welded, glued, or integrally formed as is conventional in the art.

Now, the operation principle of the present invention is explained as follows:

the plug 10 passes through the through hole, the protective frame 2 is attracted to the PLC body 1 through the first magnet block 11 and the second magnet block 12 for fixing, can increase the stability of the connection between the signal output end on the PLC body 1 and the plug 10, avoid the occurrence of loose insertion, greatly improve the stability of the signal output of the PLC controller, meanwhile, after the plug 10 is inserted into the signal output end, the screw rod 5 is rotated, the screw rod 5 is matched with the ball nut to realize the movement of the circular truncated cone 4, the rotating rod I6 and the rotating rod II 7 are driven to approach along with the movement of the circular truncated cone 4, thereby pushing the two slide blocks 8 to drive the arc-shaped plates 15 to clamp and fix the signal transmission line, when the signal transmission line is dragged by external force, the traction force of the protection mechanism on the signal transmission line can offset the dragged external force, and further reduces the pulling external force on the plug 10, and effectively ensures the stable operation of the machine equipment controlled by the plug.

Above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the design of the present invention, equivalent replacement or change should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a PLC protection device, includes PLC body (1), its characterized in that, be equipped with signal output part on PLC body (1), signal output part interpolation is equipped with signal reception's plug (10), plug (10) are connected with signal transmission line, the right side of PLC body (1) is equipped with fender bracket (2), be equipped with protection mechanism in fender bracket (2).

2. The PLC protection device according to claim 1, wherein the protection mechanism comprises a screw rod (5) inserted through the right side wall of the protection frame (2), a ball nut matched with the screw rod is sleeved on the outer wall of the screw rod (5), and a circular truncated cone (4) is fixedly sleeved on the outer wall of the ball nut.

3. The PLC protection device according to claim 2, wherein the side wall of the circular truncated cone (4) is connected with a first rotating rod (6) in a rotating manner, two opposite side walls of the first rotating rod (6) are connected with a second rotating rod (7) in a rotating manner, two sliding blocks (8) are connected with one ends of the second rotating rod (7) far away from the first rotating rod (6) in a rotating manner, a transverse plate (3) is connected between the upper side wall and the lower side wall of the protection frame (2) in a sliding manner, two sliding blocks (8) are connected on the right side wall of the transverse plate (3) in a sliding manner, and an opening matched with the plug (10) is formed in the middle of the transverse plate (.

4. The PLC protection device according to claim 3, wherein telescopic grooves are formed in the two sliding blocks (8), telescopic rods (14) are inserted into the two telescopic grooves, an arc-shaped plate (15) is fixed at one end of each of the two telescopic rods (14), telescopic springs (17) are fixedly connected into the two telescopic grooves, a partition plate (16) is fixedly connected to the other end of each of the two telescopic springs (17), and one ends of the two telescopic rods (14) in the telescopic grooves are fixedly connected with the partition plate (16).

5. The PLC protection device according to claim 3, wherein two symmetrically arranged limiting rods (9) are fixedly mounted on the left side wall of the transverse plate (3).

6. The PLC protection device according to claim 1, wherein two fixing grooves (13) are formed in the right side wall of the PLC body (1), a first magnet block (11) is fixedly mounted on the left side inner wall of each fixing groove (13), two ports of the protection frame (2) are inserted into the fixing grooves (13), and a second magnet block (12) is fixedly mounted on each port.