The waterproof sealing structure of mine electronic instrument
[technical field]
The present invention relates to mining geology detecting instrument, particularly a kind of waterproof sealing structure of mine electronic instrument.
[background technology]
The structure of existing various mine electronic instruments generally is made up of shell and panel, simultaneously between shell and panel, can be provided with sealing ring and be used for waterproof effect, and power supply and various circuit part fixedly installed in the enclosure bottom position, on key panel, adhere to the dust and water protection that a PVC material is used for the button part, adopt the mine electronic instrument of this structure, usually because the variation of the interior high low temperature of mine is bigger, cause the PVC material of surface adhesion to come off easily, influence waterproof and dustproof requirement, shorten the application life of instrument, complete machine sealing grade does not reach the class requirement of IP54.
[summary of the invention]
The technical problem to be solved in the present invention is to provide a kind of and can meets the essential safety requirement of use instrument under the mine, the waterproof sealing structure of the better mine electronic instrument of water proof and dust proof performance.
The present invention is achieved in that a kind of waterproof sealing structure of mine electronic instrument, comprise panel and shell, described panel cover is located at the top of shell, seal by rubber ring between panel and the shell, it is characterized in that: the inwall along continuous straight runs of described rubber ring is provided with a transverse groove, the edge of described panel embeds in this transverse groove, and the bottom of rubber ring vertically is provided with a vertical slot, and the top edge of described shell embeds in this vertical slot.
Described panel comprises PVC surface layer and key panel, and described PVC surface layer covers the upper surface of key panel.
The soffit of described key panel also fixedly mounts a liquid crystal display module.
The below of described liquid crystal display module also is provided with a main circuit board, the fixing soffit that also is installed in described key panel of this main circuit board.
Described shell inner bottom part is provided with battery compartment and power supply circuit board, in the described battery compartment battery pack is housed, and battery pack is potted in the battery compartment with organosilicon sealant.
The top edge bottom of described shell is provided with some supports that extend internally, and panel is fixedly mounted on this support by sunk screw and hexagonal double-ended bolt.
The invention has the advantages that: the present invention is structurally with main circuit board, the liquid crystal display module is fixed on the key panel, key panel surface coverage anti-static PVC, the key panel edge with seal with elastometic washer after and pack into the together metal shell of instrument of power pack, therefore overall structure is simple, easy to process, cost is low, adopts unique sealing ring mode to seal simultaneously, can make complete machine sealing grade reach IP54, be fit to various mines and use down.
[description of drawings]
The present invention is further illustrated in conjunction with the embodiments with reference to the accompanying drawings.
Fig. 1 is the overall structure schematic diagram of the waterproof sealing structure of mine electronic instrument of the present invention.
Fig. 2 is the sealing ring schematic cross-section of the waterproof sealing structure of mine electronic instrument of the present invention.
[specific embodiment]
Seeing also Fig. 1, is the waterproof sealing structure schematic diagram of mine electronic instrument of the present invention.A kind of waterproof sealing structure of mine electronic instrument, comprise panel 1 and shell 2, described panel 1 is covered on the top of shell 2, seal by rubber ring 3 between panel 1 and the shell 2, the inwall along continuous straight runs of described rubber ring 3 is provided with a transverse groove 31, the edge 11 of described panel 1 embeds in this transverse groove 31, and the bottom of rubber ring 3 vertically is provided with a vertical slot 32, and the top edge 22 of described shell 2 embeds in this vertical slot 32.Top edge 22 bottoms of described shell are provided with some supports that extend internally 21, and panel 1 is fixedly mounted on this support 21 by sunk screw and hexagonal double-ended bolt, make between panel 1 and the shell 2 closely to be fixed together.Described panel 1 comprises PVC surface layer 101 and key panel 102, and described PVC surface layer 101 covers the upper surface of key panel 102, plays the effect of waterproof, antistatic.Liquid crystal display module 103 and main circuit board 104 all are fixedly mounted on the soffit of key panel 102 by sunk screw and hexagonal double-ended bolt.Described main circuit board 104 is positioned at the below of liquid crystal display module 103.Bottom in the described shell 2 is provided with battery compartment 201 and power supply circuit board 202, in the described battery compartment 201 battery pack 203 is housed, and battery pack 203 usefulness organosilicon sealants 204 are potted in the battery compartment 201.
Owing to have unsafe factors such as dust, gas under the mine, country has strict requirement to mine with the electronic instrument essential safety, patent overall structure of the present invention is simple, easy to process, cost is low, adopt unique sealing ring mode to seal simultaneously, can make complete machine sealing grade reach IP54, and formulate the detection of testing agency by the national mining product safety sign of peace mark center, obtain mining product safety sign certificate, be fit to very much the various detection operations under the mine.