CN2213660Y

CN2213660Y - Fuel tank refuel mouth screw cover cabable of preventing dismantle at well

Info

Publication number: CN2213660Y
Application number: CN 94230959
Authority: CN
Inventors: 何极南
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-12-06
Filing date: 1994-12-06
Publication date: 1995-11-29
Anticipated expiration: 2004-12-06

Abstract

The utility model discloses a fuel tank refueling mouth screw cover capable of preventing dismantlement at well, comprising a cover body and a screw seat of the fuel tank, wherein, the cover body is composed of a casing, a positioning sleeve, a lining plate, a lock core, a lock seat, a connecting plate, a cam shaft, a jumping pin, an inner screw body, etc.; the screw seat of the fuel tank is composed of a seat body, an outer screw body, and a sealing ring. When the lock is opened, the inner screw body is screwed on the outer screw body of the screw seat of the fuel tank by the casing and the positioning sleeve of the cover body through the jumping pin, the lock seat, and the connecting plate, a key is reset and is pulled out, and the casing and the positioning sleeve of the cover body are separated from the lock seat, the connecting plate, and the inner screw body. The casing is rotated, and the inner screw body is not moved. The utility model has the functions of screw preventing, pick preventing, sealing, etc. Oil is effectively prevented from being stolen from the fuel tank refueling mouth. The utility model can be widely applied to the fuel tank of various automobiles.

Description

Fuel tank refuel mouth screw cover cabable of preventing dismantle at well

The utility model relates to the tank filler opening blind nut, particularly a kind of arbitrarily tank filler opening blind nut of dismounting that prevents.

Traditional fuel lid is to adopt the socket dislocation to connect, lock with bright lock, the periphery slit is greatly very easily by people's picking lock, and stolen causes damage to the car owner thus, also have a kind of fuel tank to add flap in the market with built-in lock, but the shell of this kind blind nut can not separate with inner structure, and shell rotates, and also rotate inside, also can artificially damage thus, or turn on and stolen thus.

The purpose of this utility model provides a kind of arbitrarily tank filler opening blind nut of dismounting that prevents, utilize insurance of screw thread self-locking, backing block and seal ring to realize being connected of blind nut and fuel tank, have anti-twist, functions such as pick-proof, insurance, sealing, when the lid of blind nut with after the oiltank spiro base spiral is connected, the key return is extracted out, and the cover case of blind nut can only be done 360 ° of idle running, and the inner spiro body of lid neither can advance, can not withdraw from yet, prevent effectively from this stolen.

Technical solution of the present utility model is: can prevent the arbitrarily tank filler opening blind nut of dismounting, comprise lid and oiltank spiro base, it is characterized in that lid is by shell, locating bush, liner plate, lock core, lock, gusset piece, camshaft, jump pin, compositions such as inner spiro body, shell is captiveed joint with the locating bush upper end, liner plate is fixedly connected on locating bush lower end and the shell, lock core and camshaft are contained in the axial hole of lock, the lock core lower end becomes seam to be connected with the camshaft upper end, jumping pin is contained in the radial hole of lock, jump on the axle journal of selling and be with compression spring, compression spring sleeve is fixed in the radial hole of lock, jump the knob and protruding being coupling of pin and touch, lock is contained in the locating bush, between lock and the locating bush ball is arranged, lock and locating bush can be rotated mutually, but axially do not separate, there is not groove of an annular lower end of locating bush, and and the radial hole correspondence of lock, gusset piece is contained in screw on the lower surface of lock, and inner spiro body is connected on the gusset piece with flat head screw; Oiltank spiro base is made up of pedestal, outer spiro body, seal ring, and in the pedestal endoporus, there is outer spiro body the upper end, and there is seal ring the centre, and the lower end of pedestal is connected with fuel tank; The inner spiro body of lid is spun on the outer spiro body of pedestal endoporus upper end.

In the lid of the present utility model backing block is arranged, one end of backing block has waist shaped hole, there is an aperture at the off-center place in the middle of the gusset piece, an off-centered boss is stretched out by the aperture of gusset piece on the camshaft lower surface, stretch in the waist shaped hole of backing block, the other end of backing block passes the breach of gusset piece periphery and the square hole of inner spiro body periphery, and lock core rotates, by the boss of camshaft lower surface, make backing block make fore and aft motion.

On the lid of the present utility model cover of dust is arranged, cover of dust is contained in the axial cover of dust mounting hole of lock by bolster, supporting sleeve, supporting compression spring, supporting sleeve and supporting compression spring are enclosed within on the bolster, and supporting sleeve is pressed in the axial cover of dust mounting hole of lock.

The tank filler opening blind nut that prevents random dismounting that the utility model provides, utilize the screw thread self-locking, backing block insurance and seal ring are realized being connected of blind nut and fuel tank, compared with prior art, have functions such as preventing stubborn, pick-proof, insurance, sealing, when the lid of blind nut and oiltank spiro base revolve be connected after, the key return is extracted out, and the cover case of blind nut can only be done 360 ° of idle running, and the inner spiro body of lid neither can advance, can not withdraw from yet, can prevent effectively from this stolen.

Fig. 1 is a cutaway view of the present utility model;

Fig. 2 is the upward view of camshaft of the present utility model;

Fig. 3 is the front elevation of camshaft of the present utility model;

Fig. 4 is the right elevation of camshaft of the present utility model;

Fig. 5 is the cutaway view of the utility model lock;

Fig. 6 is the birds-eye view of the utility model lock;

Fig. 7 is the cutaway view of the utility model locating bush;

Fig. 8 is the cutaway view of the utility model gusset piece;

Fig. 9 is the birds-eye view of the utility model gusset piece;

Figure 10 is the A-A cutaway view of the utility model inner spiro body;

Figure 11 is the birds-eye view of the utility model inner spiro body;

Figure 12 is the birds-eye view of the utility model backing block.

Further describe embodiment of the present utility model below in conjunction with accompanying drawing

The tank filler opening blind nut of describing in the accompanying drawing that prevents random dismounting, comprise lid (10) and oiltank spiro base (3), lid (10) is by shell (27), locating bush (15), liner plate (11), lock core (17), lock (9), gusset piece (33), camshaft (8), jump pin (16), inner spiro body compositions such as (6), shell (27) and locating bush (15) upper extreme point are welded to connect, liner plate (11) spot welding is connected on locating bush (15) lower end and the shell (27), lock core (17) and camshaft (8) are contained in the axial hole (13) of lock (9), the seam (12) of lock core (17) lower end seam and camshaft (8) upper end coincide, become seam to connect, one off-centered boss (1) is arranged on camshaft (8) lower surface, and lock core (17) and camshaft (8) rotate synchronously; Jumping pin (16) is contained in the radial hole (36) of lock (9), jump on the axle journal of selling (16) and be with compression spring (35), compression spring sleeve (34) is fixed in the radial hole (36) of lock (9), the knob of jumping pin (16) contacts with camshaft (8), when lock core (17) rotates, camshaft (8) rotates synchronously, under camshaft (8) and compression spring (35) effect, jumps radial hole (36) motion of pin (16) in lock (9); Lock (9) is contained in the locating bush (15), R shape positioning groove (14) correspondence in the knock hole (23) of lock (9) upper end and locating bush (15) upper end, on the R annular positioning groove (14) in locating bush (15) upper end aperture (26) that communicates with locating bush (15) cylindrical is arranged, rolling ring (24) from then on puts between the knock hole (23) and the R annular positioning groove (14) in locating bush (15) upper end of lock (17) upper end in the aperture (26), block aperture (26) with rivet (25), like this, lock (9) and locating bush (15) can be rotated mutually, but axially do not separate; There is not groove (7) of an annular lower end of locating bush (15), annular is radial hole (36) correspondence of groove (7) and lock (9) not, rotational lock core (17), act on by camshaft (8), make and jump annular that pin (16) heads into locating bush (15) not in the groove (7), gusset piece (33) is contained on the lower surface of lock (9) with screw (37), gusset piece (33) periphery has a breach (32), there is a through hole (4) at middle off-center place, inner spiro body (6) is connected on the gusset piece (33) with flat head screw (5), the periphery of inner spiro body (6) has a square hole (31), oiltank spiro base (3) is by pedestal (29), outer spiro body (28), seal ring (30) is formed, in pedestal (29) endoporus, the upper extreme point outer spiro body (28) that has been welded, seal ring (30) is equipped with in the centre, and pedestal (29) lower end is connected with fuel tank, the inner spiro body (15) of lid (10) is spun on the outer spiro body (28) of pedestal (29) endoporus upper end; Backing block (2) is arranged in the lid, one end of backing block (2) has waist shaped hole (38), boss (1) on camshaft (8) lower surface is stretched out by the through hole (4) of gusset piece (33), and stretch in the waist shaped hole (38) of backing block (2), the other end of backing block (2) passes the square hole (31) of the periphery of peripheral breach (32) of gusset piece (33) and interior spiral shell endosome (6), lock core (17) rotates, boss (1) by camshaft (8) lower surface, make backing block (2) make fore and aft motion, block keyhole in order to prevent dust, cover of dust (18) is passed through bolster (19), supporting sleeve (20), supporting compression spring (22) is enclosed within on the bolster (19), supporting sleeve is pressed in the axial cover of dust mounting hole (21) of lock (9), form interference fit, bolster (19) rotates in the endoporus of supporting sleeve (20), thereby driving cover of dust (18) rotates, because the effect of supporting compression spring (22) makes cover of dust (18) be close to the upper surface of lock (9).

With the pin spoon lock is opened, lock core (17) rotates, camshaft (8) rotates, to jump annular that pin (16) heads into locating bush (15) not in the groove (7), backing block (2) is return in the square hole (31) of inner spiro body (6), rotation case (27), the annular that locating bush (15) turns to locating bush (15) synchronously is the stops in the groove (7) and jump and sell (16) when contacting not, just the inner spiro body (6) of the lid (10) of this blind nut can be screwed on the outer spiro body (28) on oiltank spiro base (10) pedestal (29), seal ring (30) on oiltank spiro base (10) pedestal (29) contacts with the bottom surface of inner spiro body (6), at this moment make the key extraction that resets, lock core (17) drives camshaft (8) and resets, because compression spring (35) effect, jumping pin (16) does not withdraw from the groove (7) from the annular of locating bush (15), make the boss (1) of camshaft (8) lower end in the lock (9), drive backing block (2) motion, backing block (2) pushes between the outer spiro body (28) and seal ring (30) of oiltank spiro base (3), loosening to prevent the outer spiro body (28) on inner spiro body (6) and oiltank spiro base (10) pedestal (29), at this moment, the shell (27) that is connected on the locating bush (15) can only be around lock (9) and inner spiro body (6) idle running, and inner spiro body (6) neither can advance, do not withdraw from yet, can prevent effectively from this stolen.

Claims

1, can prevent the arbitrarily tank filler opening blind nut of dismounting, comprise lid (10) and oiltank spiro base (3), it is characterized in that lid (10) by shell (27), locating bush (15), liner plate (11), lock core (17), lock (9), gusset piece (33), camshaft (8), jump pin (16), inner spiro body (6) etc. and form, shell (27) is captiveed joint with locating bush (15) upper end, and an end that is fixed on the liner plate (11) in outer (27) is captiveed joint with locating bush (15) lower end; Lock core (17) and camshaft (8) are contained in the axial hole (13) of lock (9), lock core (17) lower end becomes seam to be connected with camshaft (8) upper end, jumping pin (16) is contained in the radial hole (36) of lock (9), jump on the axle journal of selling (16) and be with compression spring (35), compression spring sleeve (34) is fixed in the radial hole (36) of lock (9), the knob of jumping pin (16) contacts with camshaft (8), lock (9) is contained in the locating bush (15), between lock (9) and the locating bush (15) ball (24) is arranged, lock (9) and locating bush (15) are rotated mutually, but axially do not separate; There is not groove (7) of an annular lower end of locating bush (15), annular is warp-wise hole (36) correspondence of groove (7) and lock (9) not, gusset piece (33) is contained on the lower surface of lock (9) with screw (37), and inner spiro body (6) is connected on the gusset piece (33) with flat head screw (5); Oiltank spiro base (3) is made up of pedestal (29), outer spiro body (28), seal ring (30), and in pedestal (29) endoporus, the upper end is fixed with outer spiro body (28), and there is seal ring (30) centre, and the lower end of pedestal (29) is connected with fuel tank; The inner spiro body (6) of lid (10) is spun on the outer spiro body (28) of pedestal (29) endoporus upper end.

2, the arbitrarily tank filler opening blind nut of dismounting that prevents according to claim 1, it is characterized in that backing block (2) is arranged in the lid (10), one end of backing block (2) has waist shaped hole (38), there is a through hole (4) at the off-center place in the middle of the gusset piece (33), an off-centered boss (1) on camshaft (8) lower surface, through hole (4) by gusset piece (33) stretches out, and stretch in the waist shaped hole (38) of backing block (2), the other end of backing block (2) passes the square hole (31) of the periphery of peripheral breach (32) of gusset piece (33) and inner spiro body (6), lock core (17) rotates, by the boss (1) of camshaft (8) lower surface, make backing block (2) make fore and aft motion.

3, the arbitrarily tank filler opening blind nut of dismounting that prevents according to claim 1 and 2, it is characterized in that cover of dust (18) is arranged on the lid (10), cover of dust (18) is contained in the axial cover of dust mounting hole (21) of lock (9) by bolster (19), supporting sleeve (20), supporting compression spring (22), supporting sleeve (20) and supporting compression spring (22) are enclosed within on the bolster (19), and supporting sleeve (20) is pressed in the axial cover of dust mounting hole (21) of lock (9).