CN2858360Y - Fuel antitheft device of fuel box - Google Patents

Abstract

The utility model relates to a fuel antitheft device of fuel box for vehicle, characterized in that: the structure is composed of a antitheft device and a fastening mechanism for antitheft device, the antitheft device is composed of a neck bush, a fixing nut, a external tube, an internal tube, an oiling hole and a diffluence cone, the fastening mechanism for antitheft device is provided in the neck bush and is composed of an expanding sleeve, a penetrating slot, a cone screw, a hanndle, a fastening nut. The utility model has reasonable structure design, can make liquid fuel reduce retardarce and prevent fuel spurting in reverse and freely enter into the fuel box flowing along curve, and without locking head for antitheft, after opening oil cap the thief can not see the fuel in the fuel box, so the thief can not steal fuel from the fuel box at all, the operation and use of the utility model is convenient.

Description

The fuel burglarproof device of fuel tank

Technical field

The utility model relates to a kind of fuel burglarproof device of fuel tank for vehicle.

Background technology

Current, all vehicles such as automobile, diesel locomotive ... fuel tank all is equipped with, robbed or burgled in order to prevent fuel oil, the fuel burglarproof measure of being taked, mostly be to continue to use traditional old way, equipped or one bright lock or built-in lock prevents stolen on the oil filling port of fuel tank and fuel door, but the shortcoming of this method is, bright lock that is equipped with or built-in lock are easy to be damaged by the oil stealer, at this moment, the oil stealer is as long as a unlatching fuel door, can directly watch the fuel oil in the fuel tank from oil filling port, its oil stealer will adopt easily or inhale or with bottle or use cotton balls with pipe ... steal fuel oil, and lose theft-proof effect, so not only bring economic loss, and also perplexing railway all the year round to national wealth, the locomotive supervisory management zone; Therefore fuel tank for vehicle being developed, developed the new product of fuel burglarproof device, is very necessary.

Summary of the invention

The purpose of this utility model is the defective that exists in above-mentioned prior art and weak point and provide liquid fuel is flowed in the fuel tank along curve glibly, after opening fuel door, also can't watch the fuel oil in the fuel tank, and make the oil stealer also may not steal the fuel burglarproof device of a kind of fuel tank of fuel oil in the fuel tank.

The purpose of this utility model realizes with following technical scheme: a kind of fuel burglarproof device of fuel tank, comprise the oil filling port and the interior back-up ring of oil filling port that have filler cap on the fuel tank, be characterised in that: its structure is made up of anti-joyride device and anti-joyride device fastening device, described anti-joyride device is by inner covering, captive nut, outer tube, interior pipe, oil hole, divide flow cone to form, in the back-up ring in the fuel oil casing has the oil filling port of filler cap, the welding captive nut, connect inner covering in the captive nut negative thread, the hypomere of inner covering is sleeved in outer tube suitable for reading, the top of outer tube and the flange of inner covering are connected as one, the end opening of outer tube is welded into the sealing bottom surface, connect in its inner bottom surface center can with the interior pipe that is connected in the oil filling port, the top of interior pipe connects divides flow cone, in interior, outer tube, on arrange respectively and be provided with pouring orifice; In inner covering, put the anti-joyride device fastening device.Described anti-joyride device fastening device, be mainly used to make anti-joyride device can be fastened in the oil filling port, it is by swollen set of books pipe, penetrate groove, the cone screw rod, handle, clamp nut is formed, corresponding with the internal diameter of inner covering, on the cone screw rod, be processed with cone from the bottom to top in regular turn, outside thread, grip hole, in inner covering, insert cone one end of cone screw rod, and touched its awl end mutually with the inner covering inner bottom surface, corresponding with the bottom cone of cone screw rod, equipped swollen set of books pipe on the cone face of cone screw rod, on the periphery of swollen set of books pipe lower semisection, be evenly equipped with the groove that penetrates of plural lower ending opening, on the external thread section of swollen set of books pipe upper end, connect clamp nut, in grip hole, adorn handle with the upper cone screw rod.

Its principle and working process are in following: when wanting fastening anti-joyride device, at first the cone screw rod in the anti-joyride device fastening device is inserted in the inner covering, hold handle, tighten clamp nut, clamp nut just drives the cone screw rod and moves up, make and be furnished with the swollen set of books pipe that penetrates groove and be subjected to the effect of the swollen account of cone to be able to from inside to outside account to open, swollen set of books pipe tightly coincide with the wall account that contacts of inner covering, produce enough friction force, swing handle again, just drive anti-joyride device and rotate, make the inner covering in the anti-joyride device be able to close proximity, anti-joyride device is fastened in the filler port with being threaded of captive nut; At last, as long as hold handle, loosening clamp nut, the cone screw rod moves down, and swollen set of books pipe returns to original state, the anti-joyride device fastening device can be drawn off; Just can in oil filling port, inject fuel oil, the fuel oil of its injection is at first wandered on minute flow cone, be subjected to the effect of cone, the fuel oil that injects branches to around the interior pipe in the interval between inner and outer pipe, fuel oil is respectively from the fuel feed hole of inner and outer pipe then, and curved flow problem constantly flows in the fuel tank; Because interior pipe top is provided with the branch flow cone, can make the fuel oil energy that injects from nozzle equably to around Channel Group, reduce retardance, prevent that fuel oil from regurgitating, make fuel oil be assigned to each fuel feed hole on the inner and outer pipe more equably, and flow in the fuel tank; Because outer piping osed top bottom surface, its center connects the top again for dividing the interior pipe of flow cone, fuel tank internal is blocked fully, and each fuel feed hole is arranged respectively on the tube wall of being located at inner and outer pipe, therefore one open fuel door, basic fuel oil and each fuel feed hole that just can't watch fuel tank internal is so the stealer attempt is adopted or with managing suction or with bottle or use cotton balls ... steal fuel oil, be that what can't realize also is futile at all.Combine the above technical measures of being taked, realize the purpose of this utility model.

Compared with prior art, the utility model is reasonable in design not only, can make liquid fuel reduce retardance, prevent that fuel oil from regurgitating, flow in the fuel tank along curve glibly, and it is antitheft to need not tapered end, after opening fuel door, also can't have watched the fuel oil in the fuel tank, stealer is had no way of doing it and may in fuel tank, not steal fuel oil, its operation, very easy to use.

Description of drawings

The utility model has two width of cloth accompanying drawings, wherein:

Accompanying drawing 1 is the main apparent structure scheme drawing of specific embodiment of the utility model.

Accompanying drawing 2 is scheme drawings of putting the anti-joyride device fastening device in inner covering.

Among the figure: 1, filler cap 2, oil filling port 3, inner covering 4, captive nut 5, back-up ring 6, outer tube 7, divide flow cone 8, interior pipe 9, swollen set of books pipe 10, oil hole 11, clamp nut 12, handle 13, cone screw rod 14, penetrate groove

The specific embodiment

Shown in Figure 1 is specific embodiment of the utility model, it is to be used for diesel locomotive, in adorn the fuel burglarproof device of liquid diesel fuel tanks, it comprises the back-up ring 5 in the oil filling port 2 that has filler cap 1 on the fuel tank and the oil filling port 2, be characterised in that: its structure is made up of anti-joyride device and anti-joyride device fastening device, described anti-joyride device is by inner covering 3, captive nut 4, outer tube 6, interior pipe 8, oil hole 10, divide flow cone 7 to form, in the back-up ring 5 in the fuel oil casing has the oil filling port 2 of filler cap 1, welding captive nut 4, connect inner covering 3 in captive nut 4 negative threads, the hypomere of inner covering 3 is sleeved in outer tube 6 suitable for reading, the top of outer tube 6 and the flange of inner covering 3 are welded as a whole, the end opening of outer tube 6 is welded into the sealing bottom surface, in the welding of its inner bottom surface center can with the interior pipe 8 that is connected in the oil filling port, the top welding of interior pipe 8 divides flow cone 7, in interior, outer tube 8, arrange respectively on 6 and be provided with pouring orifice 10; Described anti-joyride device fastening device, as shown in Figure 2, it by swollen set of books pipe 9, penetrate groove 14, cone screw rod 13, handle 12, clamp nut 11 and form, what be evenly equipped with four lower ending openings on the periphery of the lower semisection of its swollen set of books pipe 9 penetrates groove 14, after treating that anti-joyride device is fastened, the anti-joyride device fastening device is drawn off, and filler cap 1 is topped on oil filling port 2.

Claims (2)

1, a kind of fuel burglarproof device of fuel tank, comprise the oil filling port (2) and the interior back-up ring (5) of oil filling port (2) that have filler cap (1) on the fuel tank, be characterised in that: its structure is made up of anti-joyride device and anti-joyride device fastening device, described anti-joyride device is by inner covering (3), captive nut (4), outer tube (6), interior pipe (8), oil hole (10), divide flow cone (7) to form, in the back-up ring (5) in the fuel oil casing has the oil filling port (2) of filler cap (1), welding captive nut (4), connect inner covering (3) in captive nut (4) negative thread, the hypomere of inner covering (3) is sleeved in outer tube (6) suitable for reading, the top of outer tube (6) and the flange of inner covering (3) are connected as one, the end opening of outer tube (6) is welded into the sealing bottom surface, connect in its inner bottom surface center can with the interior pipe (8) that is connected in the oil filling port, the top of interior pipe (8) connects divides flow cone (7), in interior, outer tube (8), (6) arrange respectively on and be provided with pouring orifice (10), in inner covering (3), put the anti-joyride device fastening device.

2, fuel burglarproof device by the described fuel tank of claim 1, it is characterized in that: described anti-joyride device fastening device is by swollen set of books pipe (9), penetrate groove (14), cone screw rod (13), handle (12), clamp nut (11) is formed, corresponding with the internal diameter of inner covering (3), on cone screw rod (13), be processed with cone from the bottom to top in regular turn, outside thread, grip hole, in inner covering (3), insert cone one end of cone screw rod (13), and touched its awl end mutually with inner covering (3) inner bottom surface, corresponding with the bottom cone of cone screw rod (13), equipped swollen set of books pipe (9) on the cone face of cone screw rod (13), what be evenly equipped with plural lower ending opening on the periphery of swollen set of books pipe (9) lower semisection penetrates groove (14), on the external thread section of swollen set of books pipe (9) upper end, connect clamp nut (11), in grip hole, adorn handle (12) with upper cone screw rod (13).

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