CN208500341U - LED display for fuel charger - Google Patents

Abstract

The utility model discloses the LED displays for fuel charger, including fuel charger shell, shell is equipped with opening, LED display is provided in opening, opening inner side is provided with annular groove along edge, sealing ring is provided in annular groove, several studs are provided on the shell of opening inner side, LED display is equipped with location hole, stud is screwed into nut across location hole and LED display pinch seal circle is fixed on shell, sealing in shell, air bag post is provided on shell, the bottom that air bag post is located at case inside is fixed with positioning column, the end that positioning column is located on the outside of air bag post is connected with display screen socket, display screen plug is provided on LED display, one-way air inlet mouth is additionally provided on shell, air bag post is popped up by display screen plug insertion display screen socket by injecting air to one-way air inlet mouth, display screen is inserted Spring is provided between mouth and shell.The leakproofness of the LED display of this kind of fuel charger is high, can effectively improve explosion-proof security.

Description

LED display for fuel charger

Technical field

The utility model belongs to LED display technical field, is particularly used for the LED display of fuel charger.

Background technique

Fuel charger is the oil transportation measuring equipment directly refueled for motor vehicle.It and oil tank, pipeline, pipe fitting valve etc. constitute One complete oil supply system.Fuel charger be by oil pump, gs-oil separator, meter, the big assembly of counter four and motor, Some other component such as oil gun is constituted.

Currently, there are many scale type of fuel charger used by gas station, from mechanical, electronic type until computer adds automatically Oil machine.The flow of fuel charger can be divided into 50-60 liters/min and 80-90 liters/min two kinds.The fuel charger of small flow be suitable for car, Minibus refuels；The fuel charger of big flow is suitable for the oiling of motorbus and container carrier.The basic knot of various fuel chargers Structure (mechanical driving part) is consistent.Mechanical and electronic type difference is the difference of numeric display unit, electronic type It can be used cooperatively with microcomputer, achieve the purpose that be automatically brought into operation.

LED display is generally provided on existing fuel charger, and existing LED display is generally all only to be fixed on On fuel charger shell, the gap between shell is larger, and the air with petrol molecule can enter in shell, due to refueling There are many control panels inside machine, control panel can all generate electric spark when control is opened and closed by switch, and electrical fire If flower touches the air containing bulk petroleum gas molecule and will appear explosion accident, therefore existing fuel charger generally all needs Antiknock device is used, processing cost can be very high.

Utility model content

The utility model is in view of the shortcomings of the prior art, provide the LED display for being used for fuel charger, the LED of this kind of fuel charger The leakproofness of display screen is high, and fuel charger extraneous gas can be effectively prevent to enter in fuel charger, and when air-tightness reduces Automatically plug can be separated with socket, prevents from carrying out switching when the gas for having petrol molecule enters in fuel charger operating having Effect improves safety.

In order to solve the above-mentioned technical problem, the utility model is addressed by following technical proposals: for fuel charger LED display, including fuel charger shell, the shell are equipped with opening, are provided with LED display, the opening in the opening Interior lateral edge edge is provided with annular groove, is provided with sealing ring in the annular groove, on the shell of the opening inner side Several studs are provided with, the LED display is equipped with location hole, and the stud is screwed into nut across the location hole will be described LED display pinch seal circle is fixed on the housing, sealing in the shell, is provided with air bag post on the shell, institute It states air bag post and is located at the bottom of the case inside and be fixed with positioning column, the positioning column is located at the end on the outside of the air bag post It is connected with display screen socket, display screen plug is provided on the LED display, is additionally provided with one-way air inlet on the shell Mouthful, the display screen plug is inserted into the display screen socket by injecting the air pop-up air bag post to one-way air inlet mouth, Spring is provided between the display screen socket and the shell.This kind of tax control fuel oil adding machine is by LED display and opening Sealing ring is set to increase leakproofness, enclosure interior is the cavity of a sealing, empty by injecting to one-way air inlet mouth between mouthful Gas pops up the air bag post and display screen plug is inserted into display screen socket, and spring can will be shown when leaking air the case where Screen plug is separated with display screen socket, that is to say, that only display screen plug and display screen under the premise of can guarantee leakproofness Socket plugs together, and only internal gas can be discharged since internal pressure is greater than external pressure also when gas leakage just starts, and display screen plug can be Display screen socket is extracted before there is the gas of petrol molecule to enter shell in outside, therefore can effectively prevent gas outside fuel charger Body enters in fuel charger, effectively improves safety.

In above-mentioned technical proposal, it is preferred that the one-way air inlet mouth includes admission line and check valve.

The utility model compared with prior art, has the following beneficial effects: that this kind of tax control fuel oil adding machine passes through in LED Setting sealing ring increases leakproofness between display screen and opening, and enclosure interior is the cavity of a sealing, by unidirectionally into Port injection air pops up the air bag post and display screen plug is inserted into display screen socket, bullet when leaking air the case where Spring can separate display screen plug with display screen socket, that is to say, that only display screen is inserted under the premise of can guarantee leakproofness Head is plugged together with display screen socket, only internal gas can be discharged since internal pressure is greater than external pressure also when gas leakage just starts, display Screen plug can extract display screen socket before the external gas with petrol molecule enters shell, therefore can effectively prevent adding Oil machine extraneous gas enters in fuel charger, effectively improves safety.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model embodiment.

Fig. 2 is the decomposition texture schematic diagram of LED display installation place in the utility model embodiment.

Fig. 3 is the schematic cross-sectional view of air bag post installation place in the utility model embodiment.

Specific embodiment

The utility model is described in further detail with specific embodiment with reference to the accompanying drawing: referring to Fig. 1 to Fig. 3, For the LED display of fuel charger, including fuel charger shell 1, the shell 1 is equipped with opening 2, is provided with LED in the opening 2 Display screen 3, it is described opening 2 in lateral edge edge be provided with annular groove 4, sealing ring 5 is provided in the annular groove 4, it is described Several studs 6 are provided on the shell 1 of 2 inside of opening, the LED display 3 is equipped with location hole 7, and the stud 6 is worn It crosses the location hole 7 and is screwed into nut 8 and the 3 pinch seal circle 5 of LED display is fixed on the shell 1, the shell 1 Interior sealing, air bag post 9 is provided on the shell 1, and the bottom that the air bag post 9 is located at 1 inside of shell is fixed with positioning Column 10, the end that the positioning column 10 is located at 9 outside of the air bag post are connected with display screen socket 11, on the LED display 3 It is provided with display screen plug 12, is additionally provided with one-way air inlet mouth 13 on the shell 1, by injecting air to one-way air inlet mouth 13 Pop up the air bag post 9 and the display screen plug 12 be inserted into the display screen socket 11, the display screen socket 11 with it is described Spring 14 is provided between shell 1.This kind of tax control fuel oil adding machine by between LED display and opening be arranged sealing ring come Increase leakproofness, enclosure interior is the cavity of a sealing, will by injecting the air pop-up air bag post to one-way air inlet mouth Display screen plug is inserted into display screen socket, and spring can be by display screen plug and display screen socket when leaking air the case where Separation, that is to say, that only display screen plug is plugged together with display screen socket under the premise of can guarantee leakproofness, rigid in gas leakage Internal gas can be only discharged when beginning since internal pressure is greater than external pressure also, display screen plug there can be petrol molecule in outside Gas extracts display screen socket before entering shell, therefore fuel charger extraneous gas can be effectively prevent to enter in fuel charger, Effectively improve safety.

In the present embodiment, the one-way air inlet mouth 13 includes admission line and check valve.

Claims (2)

1. being used for the LED display of fuel charger, including fuel charger shell (1), the shell (1) is equipped with opening (2), the opening (2) LED display (3) are provided on, it is characterised in that: the interior lateral edge edge of the opening (2) is provided with annular groove (4), institute It states and is provided with sealing ring (5) in annular groove (4), be provided with several studs on the shell (1) on the inside of the opening (2) (6), the LED display (3) is equipped with location hole (7), and the stud (6) is screwed into nut (8) across the location hole (7) will LED display (3) the pinch seal circle (5) is fixed on the shell (1), sealing, the shell in the shell (1) (1) it being provided on air bag post (9), the bottom that the air bag post (9) is located on the inside of the shell (1) is fixed with positioning column (10), The end that the positioning column (10) is located on the outside of the air bag post (9) is connected with display screen socket (11), the LED display (3) it is provided on display screen plug (12), is additionally provided with one-way air inlet mouth (13) on the shell (1), by one-way air inlet Mouth (13) injection air pops up the air bag post (9) and the display screen plug (12) is inserted into the display screen socket (11), institute It states and is provided with spring (14) between display screen socket (11) and the shell (1).

2. being used for the LED display of fuel charger as described in claim 1, it is characterised in that: one-way air inlet mouth (13) packet Include admission line and check valve.