CN204442872U - Flame-proof type PLC control cabinet - Google Patents
Flame-proof type PLC control cabinet Download PDFInfo
- Publication number
- CN204442872U CN204442872U CN201520164792.6U CN201520164792U CN204442872U CN 204442872 U CN204442872 U CN 204442872U CN 201520164792 U CN201520164792 U CN 201520164792U CN 204442872 U CN204442872 U CN 204442872U
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- Prior art keywords
- control cabinet
- flame
- plc control
- proof type
- push rod
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Abstract
The utility model provides a kind of flame-proof type PLC control cabinet, this control cabinet comprises shell and is located at the PLC of described enclosure, described shell comprises housing and end cap, described housing one side opening, described opening is closed by described end cap, described end cap is provided with the observation window of the display screen observing described PLC, described observation window is closed by a glass, the closed place of described glass and described observation window is provided with the first elastic seal ring, described end cap is also provided with perforate, described tapping is provided with the pushbutton unit of the power supply of PLC described in switch, the sidepiece of described housing is provided with connection jaws, described connection jaws is provided with sealing fastening device, the sidepiece of described housing is also provided with handle.Solve the technical problem of the PLC control cabinet flame proof weak effect of prior art thus.
Description
Technical field
The utility model relates to control device field, relates in particular to a kind of flame-proof type PLC control cabinet.
Background technology
PLC, Programmable Logic Controller, i.e. programmable logic controller (PLC) is a kind of electronic equipment of digital operation, aims in industrial environment application and designs.It adopts programmable memory, for its internally stored program, actuating logic computing, sequential control, regularly, counting and the user oriented instruction such as arithmetical operation, and by numeral or analog pattern input/output various types of machinery of control or production process.It is the core of Industry Control.Current mine automation level is more and more higher, the application of colliery downhole equipment automatic control system gets more and more, but, for the PLC of general industrial circle, safety regulations in coal mine can not be met due to its electric property and explosion-proof requirement can not be directly used in underground coal mine.For this reason, mining PLC control cabinet becomes the required of mine automation.
Existing PLC control cabinet electrical wiring and make and break contact often, are safeguarded inconvenient, easily because poor contact of contacts causes security incident, and are not easy investigation when generation accident.Outside it, also there is the shortcoming of sealing difference in existing PLC control cabinet, and flame proof effect is poor.
Utility model content
For this reason, technical problem to be solved in the utility model is the PLC control cabinet flame proof weak effect of prior art, thus proposes a kind of flame-proof type PLC control cabinet and solve this problem.
For solving the problem, the utility model adopts following technical scheme:
A kind of flame-proof type PLC control cabinet, comprise shell and be located at the PLC of described enclosure, described shell comprises housing and end cap, described housing one side opening, described opening is closed by described end cap, described end cap is provided with the observation window of the display screen observing described PLC, described observation window is closed by a glass, the closed place of described glass and described observation window is provided with the first elastic seal ring, described end cap is also provided with perforate, described tapping is provided with the pushbutton unit of the power supply of PLC described in switch, the sidepiece of described housing is provided with connection jaws, described connection jaws is provided with sealing fastening device, the sidepiece of described housing is also provided with handle.
Preferably, described pushbutton unit comprises button, spring and is provided with the base of stepped hole, described base is fixed in described perforate, described stepped hole is made up of the aperture of front portion and the macropore at rear portion, described button comprises push rod and is located at the button cap of described push rod rear end, described spring housing is located at described push rod rear portion, described push rod front portion is connected with a push rod through described aperture, described push rod rear portion and described button cap are limited in described macropore by described spring, and described push rod is connected with the switch of the power supply of described PLC.
Further, described push rod front portion is threaded with described push rod.
Preferably, described sealing retention mechanism comprises the second elastic seal ring, packing ring and sleeve bolt, described second elastic seal ring, packing ring and sleeve bolt axially installing successively from inside to outside along described connection jaws in described connection jaws, described sleeve bolt is connected with the inside thread of described connection jaws.
Further, described sealing retention mechanism also comprises plug, described second elastic seal ring, plug, packing ring and sleeve bolt axially installing successively from inside to outside along described connection jaws in described connection jaws.
Preferably, described housing is connected with described bolt of cover.
Preferably, the quantity of described connection jaws is 14.
Preferably, described observation window is round shape.
Preferably, described glass is toughened glass.
Preferably, described shell inner surface and outer surface are respectively equipped with earthing screw.
Technique scheme of the present utility model comprises following advantage compared to existing technology:
(1) flame-proof type PLC control cabinet of the present utility model, because a side opening of described housing is closed by described end cap, the better tightness of this project organization, and be convenient to PLC and assemble in described housing, not only strengthen the flame proof effect of control cabinet, also enhance productivity, and when producing fault, directly can open described end cap to check described PLC, easy to maintenance.The described observation window that described end cap is arranged is closed by described glass, and described closed place is also provided with described first elastic seal ring, strengthens the sealing of control cabinet like this, thus ensures flame proof effect.Described tapping on described end cap arranges described pushbutton unit, realizes the switch of the power supply to described PLC, is easy to operation, easy to use.The described connection jaws of described housing sidepiece is provided with sealing fastening device, and can ensure that external cable is after described connection jaws inlet wire like this, described connection jaws obtains effective encapsulation process, thus strengthens the flame proof effect of whole control cabinet further.
(2) flame-proof type PLC control cabinet of the present utility model, because described base is fixed in described perforate, described push rod front portion is through described aperture, and this project organization has the advantage of good airproof performance, further ensures the flame proof effect of whole control cabinet.In addition, the number of components that described pushbutton unit comprises is few, is easy to realize, and effectively reduces production cost.Described button cap and described push rod rear portion are limited in described macropore by described spring, and described button is pressed and rebound flexible operation, and user experience is good.
Accompanying drawing explanation
In order to make content of the present utility model be more likely to be clearly understood, below according to specific embodiment of the utility model also by reference to the accompanying drawings, the utility model is described in further detail, wherein
Fig. 1 is the main TV structure schematic diagram of a kind of flame-proof type PLC control cabinet of the utility model embodiment;
Fig. 2 is the plan structure schematic diagram of a kind of flame-proof type PLC control cabinet of the utility model embodiment
Fig. 3 is the sectional structure schematic diagram of a kind of flame-proof type PLC control cabinet of the utility model embodiment;
Fig. 4 is the enlarged diagram of the local A of Fig. 3;
Fig. 5 is the enlarged diagram of the local B of Fig. 3.
Embodiment
Embodiment
Fig. 1 to Fig. 3 shows a kind of flame-proof type PLC control cabinet of the utility model embodiment, and this control cabinet comprises shell 1 and PLC 2, and it is inner that PLC 2 is arranged on shell 1.
Wherein, shell 1 comprises housing 11 and end cap 12, housing 11 1 side opening, described opening is closed by end cap 12, particularly, end cap 12 and the closed mode of described opening can adopt and housing 11 and end cap 12 bolt be connected, and are connected with the described edge of opening bolt of housing 11 by end cap 12.End cap 12 is provided with the observation window 121 of the display screen observing PLC 2, and observation window 121 is to be round shape, and observation window 121 is closed by a glass 3, and glass 3 can be toughened glass, and glass 3 is provided with the first elastic seal ring 4 with the closed place of observation window 121.End cap 12 is also provided with perforate, and described tapping is provided with the pushbutton unit 5 of the power supply 21 of switch P LC controller 2.The sidepiece of housing 11 is provided with connection jaws 122, and the quantity of connection jaws 122 can be multiple, and be such as 14, connection jaws 122 is provided with sealing fastening device 6.The sidepiece of housing 11 is also provided with handle 7.
One side opening of housing 11 is closed by end cap 12, the better tightness of this project organization, and be convenient to PLC and assemble in housing 11, not only strengthen the flame proof effect of control cabinet, also enhance productivity, and when producing fault, directly can open end cap 12 pairs of PLC 2 and checking, easy to maintenance.The observation window 121 that end cap 12 is arranged is closed by glass 3, and described closed place is also provided with the first elastic seal ring 4, strengthens the sealing of control cabinet like this, thus ensures flame proof effect.Described tapping on end cap 12 arranges pushbutton unit 5, realizes the switch of the power supply 21 to PLC 2, is easy to operation, easy to use.The connection jaws 122 of housing 11 sidepiece is provided with sealing fastening device 5, and can ensure that external cable is after connection jaws 122 inlet wire like this, connection jaws 122 obtains effective encapsulation process, thus strengthens the flame proof effect of whole control cabinet further.The sidepiece of housing 11 is provided with handle 7, makes like this to carry out conveniently moving to control cabinet.
As preferred embodiment, as shown in Figure 4, pushbutton unit 5 comprises button 51, spring 52 and is provided with the base 53 of stepped hole, and base 53 is fixed in the described perforate of end cap 12, and particularly, base 53 can directly be welded in described perforate.Button 51 comprises push rod 511 and button cap 512, and button cap 512 is arranged on push rod 511 rear end, and particularly, button cap 512 can be one-body molded with push rod 511.Spring 52 is set in push rod 511 rear portion.Described stepped hole is made up of the aperture of front portion and the macropore at rear portion, and push rod 511 front portion is connected with a push rod 8 through described aperture, and particularly, anterior can the employing with the connected mode of push rod 8 of push rod 511 is threaded.Push rod 511 rear portion and button cap 512 are limited in described macropore by spring 52, and push rod 8 is connected with the switch 211 of the power supply 21 of PLC 2.Because base 53 is fixed in described perforate, push rod 511 front portion is through described aperture, and this project organization has the advantage of good airproof performance, further ensures the flame proof effect of whole control cabinet.In addition, the number of components that pushbutton unit 5 comprises is less, is easy to realize, and effectively reduces production cost.Button cap 512 and push rod 511 rear portion are limited in described macropore by spring 52, and button 51 is pressed, rebound flexible operation, and user experience is good.
As preferred embodiment, as shown in Figure 5, sealing retention mechanism 6 comprises the second elastic seal ring 61, packing ring 62 and sleeve bolt 63, second elastic seal ring 61, packing ring 62 and sleeve bolt 63 axially installing successively from inside to outside along connection jaws 122 in connection jaws 122, sleeve bolt 63 is connected with the inside thread of connection jaws 122.At external cable by after connection jaws 122 inlet wire, screw sleeve bolt 63, compressed by elastic seal ring 61 by packing ring 62 in connection jaws 122, the external cable making it hold central authorities tightly to pass, so further enhancing sealing, improves flame proof effect.
Further, sealing retention mechanism 6 also comprises plug 64, the second elastic seal ring 61, plug 64, packing ring 62 and sleeve bolt 63 axially installing successively from inside to outside along connection jaws 122 in connection jaws 122.When factory state, sleeve bolt 63 is screwed in connection jaws 122, by packing ring 62, plug 64 and the second elastic seal ring 61 are compressed, make in shell 1 completely closed with the external world, can in the flame-proof type PLC control cabinet of the present embodiment before being taken into use, prevent from entering foreign gas in shell 1 like this.When using in coal mine environment, then sleeve bolt 63 of outwarding winding, remove plug 64, external cable is by connection jaws 122 inlet wire, then in connection jaws 122, screw sleeve bolt 63, by packing ring 62, second elastic seal ring 61 is compressed, the cable making it hold central authorities tightly to pass.Can further improve flame proof effect like this.
As preferred embodiment, housing 11 inner surface is provided with earthing screw 91, and housing 11 outer surface is provided with earthing screw 92.Earthing screw 91 can be electrically connected with the earth terminal of PLC 2, and earthing screw 92 can pass through wired earth, effectively can prevent electric leakage like this.
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to execution mode.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all execution modes.And thus the apparent change of extending out or variation be still among the protection range that the utility model creates.
Claims (10)
1. a flame-proof type PLC control cabinet, comprise shell and be located at the PLC of described enclosure, it is characterized in that: described shell comprises housing and end cap, described housing one side opening, described opening is closed by described end cap, described end cap is provided with the observation window of the display screen observing described PLC, described observation window is closed by a glass, the closed place of described glass and described observation window is provided with the first elastic seal ring, described end cap is also provided with perforate, described tapping is provided with the pushbutton unit of the power supply of PLC described in switch, the sidepiece of described housing is provided with connection jaws, described connection jaws is provided with sealing fastening device, the sidepiece of described housing is also provided with handle.
2. flame-proof type PLC control cabinet according to claim 1, it is characterized in that: described pushbutton unit comprises button, spring and the base being provided with stepped hole, described base is fixed in described perforate, described stepped hole is made up of the aperture of front portion and the macropore at rear portion, described button comprises push rod and is located at the button cap of described push rod rear end, described spring housing is located at described push rod rear portion, described push rod front portion is connected with a push rod through described aperture, described push rod rear portion and described button cap are limited in described macropore by described spring, described push rod is connected with the switch of the power supply of described PLC.
3. flame-proof type PLC control cabinet according to claim 2, is characterized in that: described push rod front portion is threaded with described push rod.
4. flame-proof type PLC control cabinet according to claim 1, it is characterized in that: described sealing retention mechanism comprises the second elastic seal ring, packing ring and sleeve bolt, described second elastic seal ring, packing ring and sleeve bolt axially installing successively from inside to outside along described connection jaws in described connection jaws, described sleeve bolt is connected with the inside thread of described connection jaws.
5. flame-proof type PLC control cabinet according to claim 4, it is characterized in that: described sealing retention mechanism also comprises plug, described second elastic seal ring, plug, packing ring and sleeve bolt axially installing successively from inside to outside along described connection jaws in described connection jaws.
6. flame-proof type PLC control cabinet according to claim 1, is characterized in that: described housing is connected with described bolt of cover.
7. flame-proof type PLC control cabinet according to claim 1, is characterized in that: the quantity of described connection jaws is 14.
8. flame-proof type PLC control cabinet according to claim 1, is characterized in that: described observation window is round shape.
9. flame-proof type PLC control cabinet according to claim 1, is characterized in that: described glass is toughened glass.
10. the flame-proof type PLC control cabinet according to any one of claim 1-9, is characterized in that: described shell inner surface and outer surface are respectively equipped with earthing screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520164792.6U CN204442872U (en) | 2015-03-23 | 2015-03-23 | Flame-proof type PLC control cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520164792.6U CN204442872U (en) | 2015-03-23 | 2015-03-23 | Flame-proof type PLC control cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204442872U true CN204442872U (en) | 2015-07-01 |
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ID=53610679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520164792.6U Expired - Fee Related CN204442872U (en) | 2015-03-23 | 2015-03-23 | Flame-proof type PLC control cabinet |
Country Status (1)
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| CN (1) | CN204442872U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105471460A (en) * | 2015-12-30 | 2016-04-06 | 贝兹维仪器(苏州)有限公司 | Remote data communication device for well logging debugging |
| CN105471461A (en) * | 2015-12-30 | 2016-04-06 | 贝兹维仪器(苏州)有限公司 | Data communication device for well logging debugging |
| CN107787146A (en) * | 2017-12-12 | 2018-03-09 | 江苏新力科技实业有限公司 | A kind of mine explosion-suppression and intrinsic safety type control cabinet chamber door |
| CN112055494A (en) * | 2020-09-09 | 2020-12-08 | 深圳市尚为照明有限公司 | Explosion-proof emergency power supply device |
-
2015
- 2015-03-23 CN CN201520164792.6U patent/CN204442872U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105471460A (en) * | 2015-12-30 | 2016-04-06 | 贝兹维仪器(苏州)有限公司 | Remote data communication device for well logging debugging |
| CN105471461A (en) * | 2015-12-30 | 2016-04-06 | 贝兹维仪器(苏州)有限公司 | Data communication device for well logging debugging |
| CN107787146A (en) * | 2017-12-12 | 2018-03-09 | 江苏新力科技实业有限公司 | A kind of mine explosion-suppression and intrinsic safety type control cabinet chamber door |
| CN112055494A (en) * | 2020-09-09 | 2020-12-08 | 深圳市尚为照明有限公司 | Explosion-proof emergency power supply device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150701 Termination date: 20170323 |