CN213244667U - Programmable logic controller with interface protection mechanism - Google Patents

Abstract

The utility model relates to the technical field of electrical engineering, in particular to a programmable logic controller with an interface protection mechanism, which comprises a bottom plate, a programmable logic controller and a fixed block, the bottom plate is connected with the programmable logic controller in a sliding way, the programmable logic controller is fixedly connected with the fixed block, the front end of the fixed block is fixedly connected with an interface, through the arrangement of the nut, the bolt and the fixing plate, the arrangement is matched with the screw connection of the nut and the bolt and the rotary connection of the bolt and the fixing plate, when the programmable logic controller is used, the interface of the programmable logic controller is effectively compressed, so that the protection effect is achieved, the problem that the interface of the programmable logic controller is loosened due to frequent plugging and unplugging is avoided, the normal use of the programmable logic controller is prevented from being influenced, and the service life of the programmable logic controller is greatly prolonged.

Description

Programmable logic controller with interface protection mechanism

Technical Field

The utility model relates to an electrical engineering technical field specifically is a programmable logic controller with interface protection mechanism.

Background

A programmable logic controller, a digital operation controller with microprocessor for automatic control, can load the control instruction into the memory at any time for storage and execution, the programmable controller is composed of CPU, instruction and data memory, I/O interface, power supply, D/A conversion and other functional units, the early programmable logic controller has only logic control function, so it is named as programmable logic controller, later, with continuous development, these computer modules with simple functions have already included various functions including logic control, sequential control, analog control, multimachine communication and so on, and its name is changed into programmable controller, but because its shorthand PC conflicts with the shorthand of personal computer, and because of the custom, people still often use the name of programmable logic controller, and still use the abbreviation of PLC, the programmable logic controller used in industry is equivalent to or close to a host of a compact computer, the advantages of the programmable logic controller in expansibility and reliability enable the programmable logic controller to be widely applied to various industrial control fields at present, no matter in a direct computer control system, a centralized Distributed Control System (DCS) or a field bus control system (FCS), a great number of various PLC controllers are always used, but when most of the existing programmable logic controllers are used, the problem that an interface of the programmable logic controller is loosened due to frequent plugging and unplugging often occurs, the normal use of the device is influenced, even the service life of the programmable logic controller is influenced, meanwhile, when part of the existing programmable logic controllers are used, necessary protection devices are lacked, and the programmable logic controller is easily damaged due to external force impact, even some programmable logic controllers have certain protector, also mostly are fixed setting, and the installation of being very inconvenient is dismantled, and it is inconvenient to use many.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a programmable logic controller with interface protection mechanism to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a programmable logic controller with an interface protection mechanism comprises a bottom plate, a programmable logic controller and a fixed block, wherein the bottom plate is connected with the programmable logic controller in a sliding manner, the programmable logic controller is fixedly connected with the fixed block, an interface is fixedly connected with the front end of the fixed block, a nut is fixedly connected with the inner side of the top end of the fixed block, a bolt is spirally connected with the inner side of the nut, a fixed plate is rotatably connected with the bottom end of the bolt, a buffer plate is fixedly connected with the bottom end of the fixed plate, the buffer plate is connected with the interface in a sliding manner, a first spring is fixedly connected with the top end of the fixed plate, a protection plate is slidably connected with the outer side of the programmable logic controller, clamping heads are fixedly connected with the left side and the right side of the protection plate, a clamping block, the outer side of the pull rod is connected with a second spring in a sliding mode, and the second spring is connected with the bottom plate in a sliding mode.

Preferably, the buffer plate is connected with the fixed block in a sliding mode, the buffer plate is made of a rubber material plate, and the surface of the buffer plate is arranged in a protruding stripe shape.

Preferably, the top end of the first spring is fixedly connected with the fixed block, the number of the first springs is 4, and the first springs are arranged in a bilateral symmetry manner.

Preferably, guard plate and bottom plate sliding connection, the guard plate surface is provided with align to grid's through-hole, the guard plate is made by stainless steel's panel.

Preferably, one side of the pull rod, which is far away from the central position of the bottom plate, is fixedly connected with a pull ring.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses in, through nut, bolt and the fixed plate that sets up, this kind of setting cooperates nut and bolt screwed connection and bolt and fixed plate to rotate to be connected, can carry out effectual compressing tightly to programmable logic controller's interface when programmable logic controller uses to play the effect of protection, avoid appearing because often pull out and insert, lead to the problem that programmable logic controller's interface appears not hard up, avoid influencing programmable logic controller's normal use, improved programmable logic controller's life greatly;

2. the utility model discloses in, through dop, fixture block and the pull rod that sets up, this kind sets up cooperation dop and fixture block sliding connection and fixture block and pull rod fixed connection to carry out effectual fixed to the guard plate, can carry out effectual protection to programmable logic controller when programmable logic controller uses, avoid programmable logic controller because of receiving external force and strike, cause the damage, the installation of being convenient for very moreover is dismantled, convenient to use.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure at A of FIG. 1 according to the present invention;

FIG. 3 is a schematic view of the structure of FIG. 1 at B according to the present invention;

fig. 4 is a schematic diagram of the overall structure of the programmable logic controller of the present invention.

In the figure: the device comprises a base plate 1, a programmable logic controller 2, a protection plate 3, a fixing block 4, an interface 5, a nut 6, a bolt 7, a fixing plate 8, a buffer plate 9, a first spring 10, a chuck 11, a chuck 12, a clamping block 13, a pull rod 14, a second spring 15 and a pull ring 15.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution:

a programmable logic controller with an interface protection mechanism comprises a bottom plate 1, a programmable logic controller 2 and a fixed block 4, wherein the bottom plate 1 is connected with the programmable logic controller 2 in a sliding manner, the programmable logic controller 2 is fixedly connected with the fixed block 4, an interface 5 is inserted into the inner side of the fixed block 4, a nut 6 is fixedly connected with the inner side of the top end of the fixed block 4, a bolt 7 is spirally connected with the inner side of the nut 6, the bottom end of the bolt 7 is rotatably connected with a fixed plate 8 to effectively drive the fixed plate 8 to move, a buffer plate 9 is fixedly connected with the bottom end of the fixed plate 8, the buffer plate 9 is connected with the interface 5 in a sliding manner to effectively compress the interface 5, the interface 5 can be effectively protected at the same time, the damage to the interface 5 is avoided, a first spring 10 is fixedly connected with the top end of the fixed plate 8 to improve the, be convenient for carry out effectual protection to programmable logic controller 2, the equal fixedly connected with dop 11 in the 3 bottom left and right sides of guard plate, dop 11 outside sliding connection has fixture block 12, is convenient for carry out effectual protection to guard plate 3, fixture block 12 and bottom plate 1 sliding connection, fixture block 12 right side fixedly connected with pull rod 13, pull rod 13 outside sliding connection has second spring 14, second spring 14 and bottom plate 1 sliding connection are convenient for carry out effectual buffering to fixture block 12 and reset.

The buffer plate 9 is connected with the fixed block 4 in a sliding mode, the buffer plate 9 is made of a rubber plate, the surface of the buffer plate 9 is arranged in a protruding stripe shape, the flexibility and the skid resistance of the buffer plate 9 can be effectively improved, and therefore the interface 5 can be protected more effectively; the top ends of the first springs 10 are fixedly connected with the fixed block 4, the number of the first springs 10 is 4, and the first springs 10 are symmetrically arranged left and right, so that the tightness of the protection of the interface 2 is improved conveniently; the protection plate 3 is connected with the bottom plate 1 in a sliding mode, through holes are uniformly formed in the surface of the protection plate 3, the protection plate 3 is made of a stainless steel plate, an effective protection effect can be achieved, and ventilation and heat dissipation can be achieved well; one side fixedly connected with pull ring 15 that bottom plate 1 central point department was kept away from to pull rod 13 is convenient for effectually remove pull rod 13.

The working process is as follows: when the protective device is used, when the interface 5 of the programmable logic controller 2 needs to be effectively protected, the bolt 7 can be rotated downwards, at the moment, the bolt 7 can drive the fixing plate 8 to move downwards under the matching of the nut 6, so that the interface 5 of the programmable logic controller 2 can be effectively compressed, meanwhile, the buffer plate 9 can further improve the compression effect, when the interface 5 of the programmable logic controller 2 needs to be plugged, the bolt 7 can be rotated upwards, at the moment, the bolt 7 can drive the fixing plate 8 to move upwards under the matching of the nut 6, so that the buffer plate 9 is separated from the interface 5, so that the plugging and unplugging are convenient, the problem that the interface 5 of the programmable logic controller 2 is loosened due to frequent plugging and unplugging can be effectively avoided, and the normal use of the programmable logic controller 2 is prevented from being influenced, greatly prolonged programmable logic controller 2's life, can pass through dop 11 and the mutual block of fixture block 12 simultaneously, thereby carry out effectual fixed to guard plate 3, make guard plate 3 can carry out more effective protection, avoid programmable logic controller 2 because of receiving external force and strike, cause the damage, when needs are dismantled guard plate 3, can be through pulling pull ring 15, under pull ring 15's effect, can make pull rod 13 remove to the outside, second spring 14 can play the effect that effectual buffering resets simultaneously, pull rod 13 drives fixture block 12 and removes to the outside this moment, thereby make fixture block 12 and dop 11 break away from the contact, thereby be convenient for carry out effectual dismantlement.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a programmable logic controller with interface protection mechanism, includes bottom plate (1), programmable logic controller (2) and fixed block (4), its characterized in that: the bottom plate (1) is connected with the programmable logic controller (2) in a sliding manner, the programmable logic controller (2) is fixedly connected with the fixed block (4), the interface (5) is fixedly connected with the front end of the fixed block (4), the nut (6) is fixedly connected with the inner side of the top end of the fixed block (4), the bolt (7) is spirally connected with the inner side of the nut (6), the bottom end of the bolt (7) is rotatably connected with the fixed plate (8), the bottom end of the fixed plate (8) is fixedly connected with the buffer plate (9), the buffer plate (9) is connected with the interface (5) in a sliding manner, the top end of the fixed plate (8) is fixedly connected with the first spring (10), the protective plate (3) is slidably connected with the outer side of the programmable logic controller (2), the clamping heads (11) are fixedly connected with the left side and the right side of, the clamping block (12) is connected with the bottom plate (1) in a sliding mode, a pull rod (13) is fixedly connected to the right side of the clamping block (12), a second spring (14) is connected to the outer side of the pull rod (13) in a sliding mode, and the second spring (14) is connected with the bottom plate (1) in a sliding mode.

2. The programmable logic controller with an interface guard mechanism of claim 1, wherein: buffer board (9) and fixed block (4) sliding connection, buffer board (9) are made by the panel of rubber material, buffer board (9) surface is protruding stripe form setting.

3. The programmable logic controller with an interface guard mechanism of claim 1, wherein: the top end of the first spring (10) is fixedly connected with the fixed block (4), the number of the first springs (10) is 4, and the first springs (10) are arranged in a bilateral symmetry manner.

4. The programmable logic controller with an interface guard mechanism of claim 1, wherein: protection plate (3) and bottom plate (1) sliding connection, protection plate (3) surface is provided with align to grid's through-hole, protection plate (3) are made by stainless steel's panel.

5. The programmable logic controller with an interface guard mechanism of claim 1, wherein: and a pull ring (15) is fixedly connected to one side of the pull rod (13) far away from the central position of the bottom plate (1).

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