Circuit detection device for PLC wiring

Abstract

The utility model discloses a circuit detection device for PLC wiring, comprising a detector body, the upper end of the detector body is provided with a plurality of detection interfaces, a dustproof mechanism is arranged above the detection interfaces, the dustproof mechanism is composed of a baffle plate, a movable block and a first spring, the baffle plate is arranged above the detection interfaces, the movable block is arranged above the detection interfaces, and the first spring is arranged above the movable block. The side wall of the shielding plate is fixedly connected with a movable block, the movable block is slidably installed in a movable groove formed in the detector body, a plurality of first springs are fixedly connected between the side wall of the movable block and the inner wall of the movable groove, and the side wall of the detector body is further provided with a limiting mechanism acting on the shielding plate. According to the circuit detection device, the dustproof mechanism is arranged on the detector body, so that when the circuit detection device is not used, the detection interface on the detector body can be shielded through the shielding plate on the dustproof mechanism, and excessive dust is prevented from entering the detection interface due to long-term exposure.

Description

Technical Field

[0001] The utility model relates to the technical field of PLC circuit detection, in particular to a circuit detection device for PLC wiring. Background Art

[0002] PLC, also known as programmable logic controller, is an electronic system that performs digital computing operations and is designed for use in industrial environments. It uses a type of programmable memory to store programs internally, execute user-oriented instructions such as logical operations, sequential control, timing, counting and arithmetic operations, and control various types of machinery or production processes through digital or analog input / output.

[0003] The existing equipment needs to be equipped with a PLC circuit board, and the circuit of the PLC circuit board needs to be tested after the PLC is wired. When the existing PLC wiring circuit detection device is not in use, its detection interface lacks protection measures. The detection interface is exposed to the air for a long time, and a lot of dust will accumulate inside, which is easy to cause poor contact. Therefore, a PLC wiring circuit detection device is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide a circuit detection device for PLC wiring to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a circuit detection device for PLC wiring, comprising a detector body, a plurality of detection interfaces are provided at the upper end of the detector body, a dust prevention mechanism is arranged above the detection interface, the dust prevention mechanism is composed of a shielding plate, a movable block and a first spring, the shielding plate is located above the detection interface, a movable block is fixedly connected to the side wall of the shielding plate, the movable block is slidably installed in a movable groove provided in the interior of the detector body, a plurality of first springs are fixedly connected between the side wall of the movable block and the inner wall of the movable groove, and a limiting mechanism acting on the shielding plate is also arranged on the side wall of the detector body.

[0006] As a further preferred embodiment of the present technical solution, the limiting mechanism is composed of two limiting components, and the two limiting components are symmetrically distributed on both sides of the detector body.

[0007] As a further preferred embodiment of the present technical solution, the limit assembly consists of a block and a second spring, a slider is fixedly connected to the side wall of the block, the slider is slidably installed in a slide groove opened on the side wall of the detector body, and a second spring is fixedly connected between the bottom of the slider and the bottom of the inner cavity of the slide groove.

[0008] As a further preferred embodiment of the present technical solution, a plurality of the first springs are distributed in a linear array.

[0009] As a further preferred embodiment of the present technical solution, a rubber layer is provided at the bottom of the detector body.

[0010] As a further preferred embodiment of the present technical solution, guide plates are fixedly connected to both sides of the bottom of the shielding plate, and the two guide plates are slidably installed in guide grooves opened on both sides of the detector body.

[0011] As a further preferred embodiment of the present technical solution, a display screen is disposed at the upper end of the detector body, and a control panel is also disposed at the upper end of the detector body.

[0012] The utility model provides a circuit detection device for PLC wiring, which has the following beneficial effects:

[0013] The utility model provides a dust-proof mechanism on the detector body, so that when the circuit detection device is not in use, the detection interface on the detector body can be shielded by the shielding plate on the dust-proof mechanism, thereby preventing the detection interface from being exposed for a long time and entering too much dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the disassembly of the overall structure of the utility model;

[0016] Figure 3 For the utility model Figure 2 Schematic diagram of some structures;

[0017] Figure 4 For this utility model Figure 1 The structural diagram of A in the figure;

[0018] In the figure: 1. detector body; 2. display screen; 3. rubber layer; 4. detection interface; 5. shielding plate; 6. first spring; 7. movable block; 8. movable groove; 9. guide groove; 10. guide plate; 11. block; 12. slide groove; 13. second spring; 14. control panel. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] The utility model provides a technical solution: Figures 1 to 4As shown, in the present embodiment, a circuit detection device for PLC wiring includes a detector body 1, a plurality of detection interfaces 4 are provided at the upper end of the detector body 1, a dust prevention mechanism is provided above the detection interface 4, the dust prevention mechanism is composed of a baffle plate 5, a movable block 7 and a first spring 6, the baffle plate 5 is located above the detection interface 4, a movable block 7 is fixedly connected to the side wall of the baffle plate 5, the movable block 7 is slidably installed in a movable groove 8 provided in the inside of the detector body 1, a plurality of first springs 6 are fixedly connected between the side wall of the movable block 7 and the inner wall of the movable groove 8, the plurality of first springs 6 are distributed in a linear array, and a limiting mechanism acting on the baffle plate 5 is also provided on the side wall of the detector body 1.

[0021] Among them, the limiting mechanism is composed of two limiting components, and the two limiting components are symmetrically distributed on both sides of the detector body 1. The limiting components are composed of a block 11 and a second spring 13. A slider is fixedly connected to the side wall of the block 11. The slider is slidably installed in a slide groove 12 opened on the side wall of the detector body 1, and a second spring 13 is fixedly connected between the bottom of the slider and the bottom of the inner cavity of the slide groove 12.

[0022] Under the action of the second spring 13 , the block 11 will move upwards and be stuck at the front end of the shielding plate 5 . When the limiting mechanism needs to be released, the block 11 only needs to be pressed downwards.

[0023] A rubber layer 3 is provided at the bottom of the detector body 1 .

[0024] The rubber layer 3 can increase the friction between the bottom of the detector body 1 and the placement ground, so that the device is more stable after being placed.

[0025] The two sides of the bottom of the shielding plate 5 are respectively fixedly connected with guide plates 10 , and the two guide plates 10 are respectively slidably installed in the guide grooves 9 opened on the two sides of the detector body 1 .

[0026] The sliding fit between the guide plate 10 and the guide groove 9 can make the shielding plate 5 more stable when moving.

[0027] A display screen 2 is disposed on the upper end of the detector body 1 , and a control panel 14 is also disposed on the upper end of the detector body 1 .

[0028] The detection data can be observed in real time through the display screen 2, and the device can be controlled through the control panel 14.

[0029] The utility model provides a circuit detection device for PLC wiring, and the specific working principle is as follows:

[0030] When the circuit detector needs to be used, the baffle plate 5 is pushed in the direction of the movable slot 8 to expose the detection interface 4 below the baffle plate 5. When the baffle plate 5 moves to the top of the detached block 11, under the action of the second spring 13, the block 11 will move upward and be stuck at the front end of the baffle plate 5, thereby limiting the baffle plate 5. At this time, one end of the detection line can be inserted into the detection interface 4, and the other end of the detection line can be used to perform circuit detection on the PLC. When the detection is completed, the detection piece is pulled out, and the block 11 is pressed downward. The front end of the baffle plate 5 loses the obstruction of the block 11 and will return to its initial position under the action of the first spring 6 to restore its deformation, thereby covering the detection interface 4 to prevent the detection interface 4 from being exposed for a long time and entering too much dust.

[0031] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A circuit detection device for PLC wiring, comprising a detector body (1), characterized in that: A plurality of detection interfaces (4) are provided at the upper end of the detector body (1); a dust prevention mechanism is provided above the detection interface (4); the dust prevention mechanism is composed of a shielding plate (5), a movable block (7) and a first spring (6); the shielding plate (5) is located above the detection interface (4); a movable block (7) is fixedly connected to the side wall of the shielding plate (5); the movable block (7) is slidably installed in a movable groove (8) provided inside the detector body (1); a plurality of first springs (6) are fixedly connected between the side wall of the movable block (7) and the inner wall of the movable groove (8); and a limiting mechanism acting on the shielding plate (5) is also provided on the side wall of the detector body (1).

2. A PLC wiring circuit detection device according to claim 1, characterized in that: The limiting mechanism is composed of two limiting components, and the two limiting components are symmetrically distributed on both sides of the detector body (1).

3. A PLC wiring circuit detection device according to claim 2, characterized in that: The limit assembly consists of a block (11) and a second spring (13); a slider is fixedly connected to the side wall of the block (11); the slider is slidably installed in a slide groove (12) provided on the side wall of the detector body (1); and the second spring (13) is fixedly connected between the bottom of the slider and the bottom of the inner cavity of the slide groove (12).

4. A PLC wiring circuit detection device according to claim 1, characterized in that: The plurality of first springs (6) are distributed in a linear array.

5. A PLC wiring circuit detection device according to claim 1, characterized in that: A rubber layer (3) is provided at the bottom of the detector body (1).

6. A PLC wiring circuit detection device according to claim 1, characterized in that: Guide plates (10) are fixedly connected to both sides of the bottom of the shielding plate (5), and the two guide plates (10) are slidably mounted in guide grooves (9) provided on both sides of the detector body (1).

7. A PLC wiring circuit detection device according to claim 1, characterized in that: A display screen (2) is provided at the upper end of the detector body (1), and a control panel (14) is also provided at the upper end of the detector body (1).

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